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SWM-SY080401STORM WATER POLLUTION PREVENTION PLAN "SWPPP" For Construction of: ROLLING OAKS MEMORIAL CENTER 400 SOUTH FREEPORT PARKWAY COPPELL, TEXAS PERMITTEES: THE CITY OF COPPELL 255 PARKWAY BOULEVARD COPPELL, TExAs 75019 AND THE FAIN GROUP, INC. P.O. Box 750 FORT WORTH, TExAs 76101 Owner - Copy Prepared by: Brock Environmental Services, LLC. 422 East 1 -30 Suite F Royse City, Texas 75189 972 - 636 -7717 April, 2008 Entire Contents copyright © by Brock Environmental Services, LL C. All rights reserved. Reproduction in whole or part without permission is prohibited. Table of Contents I. INTRODUCTION 1 A. Responsibility of Primary and Secondary Operators ... ....... ........................ 2 II. PROJECT DESCRIPTION. 3 A. Nature of Construction Activity____________________________________________ _______________________________ 3 B. Sequence of Construction Activities__________________________________ _______________________________ 3 C. Discharges Associated with Construction Support Activity ...... ....... ............4 D. Estimate of Total Site Area and Disturbed Area ________________ 5 E. Existing Site Conditions and Soil Data ........................................ _..................... 5 F. Storm Water Management---------------------------------------------------- ------------------------- - - - - -5 G. Receiving Waters -------------------------------------------------- - - - - -- --------------------- - - - - -- ------- - - - - -5 H. Standard Industrial Classification Codes 5 J. Endangered Species Information_______________________________________ _______________________________ 5 K. Historic Preservation Information _____________________5 L. Notice of Intent / Notice of Termination _______________________ 5 III. STORM WATER POLLUTION MEASURES AND CONTROLS__ _____________ __________________ 6 A. Erosion and Sediment Controls __ - - -6 1. Soil Stabilization ------------------------------------------------------- - - - - -6 2. Structural Controls. 6 3. Storm Water Management Practices --------------------------------------------------- 7 4. Storm Water Management Controls______________________ _______________________ __ _ _ _ _ __ 7 B. Other Controls. 7 1. Dust Control / Offsite Vehicle Tracking_________________ _______________________________ 7 2. Waste Disposal- ------------------------------------------------------------ - - - - -- ----------------- - - - --8 3. Sanitary/ Septic--------------------------------------------------- - - - - -- -------------- - - - - -- ---- - - - - -- 8 4. Water Source 8 5. Construction Phase "Best Management Practices ............. _--------------- 8 6. Hazardous Material Storage ----------------------------------------------------------- - - - --- 9 7. Spill Prevention and Response_____________________________ ________________ _________ _ _ _ _ __ 9 8. Concrete Saw Cutting and Truck Washout ------------------------------ _---------- 10 Table of Contents Continued... IV. STATE AND LOCAL PROGRAMS .------------------------------------------------------------------------- - - - -10 V. INSPECTION AND MAINTENANCE----------------------------------------------------------------------- - - - -11 A. Material Storage Inspections----------------------- - - - - -- -------------------------------------- - - - -11 B. Soil Stabilization Inspections-------------------------------------------------------------------- - - - -11 C. Erosion and Sediment Control Inspections------------------------------------------- - - - -11 VI. MODIFICATIONS / REVISIONS To SWPPP -------------------------------------------------------- 13 VII. PROCEDURAL REQUIREMENTS ------------------------------------------------------------------------- - - - -13 VIII. PREPARER'S CERTIFICATION ---------------------------------------------------- - - - -15 IX APPEND ICES' A. CONTRACTOR CERTIFICATION /SUBCONTRACTOR CERTIFICATIONS B. DELEGATION LETTERS C. TPDES CONSTRUCTION SITE NOTICES (TO BE POSTED AT SITE) SMALL CONSTRUCTION SITE NOTICE/ SECONDARY SITE NOTICE /LARGE SITE NOTICE /LOW POTENTIAL FOR &?OSION SMALL SITE NOTICE D. NOI /NOT /NOC E. ENDANGERED SPECIES AND HISTORICAL PLACES CERTIFICATION F. UPDATE FORM / CHANGE IN EXISTING SITE CONDITIONS /RECORD OF STABILIZATION MEASURES G. RECORD OF MAJOR GRADING ACTIVITIES H. RECORD TEMPORARY OR PERMANENT CEASED CONSTRUCTIONACTIVITIES L PROJECT DESCRIPTION, VICINITY MAP, EROSION AND SEDIMENT CONTROL PLANS WITH DRAINAGE CHARACTERISTICS, DETAILSAND SPECIFICATIONS ✓. INSPECTOR QUA'_IFICATIONSAND INSPECTION REPORTS K. NCTCOG BEST MANAGEMENT PRACTICE'S L. TPDES GENERAL PERMIT NUMBER TXR 150000 RELATING TO DISCHARGES FROM CONS TR UC TION A C TI VI TI ES M. CONCRETE BATCH PLANTS REQUIREMENTS /DMR REPORT N. SPILL PREVENTIONAND RESPONSE PROCEDURES, CONTACT NUMBERS AND SPILL RESPONSE FORMS O. DEFINITIONS Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. I. INTRODUCTION This Storm Water Pollution Prevention Plan (SWP3) has been prepared for the proposed construction for; Rolling Oaks Memorial Center located at 400 South Freeport Parkway, City of Coppell, Dallas County Texas. This plan includes the elements necessary for compliance with the Texas general permit for construction activities (Permit No.TXR 150000) administered by the Texas Commission on Environmental Quality (TCEQ) under the Texas Pollutant Discharge Elimination System (TPDES) Program. The purpose of this SWPPP is to provide guidelines for preventing or minimizing soil and pollutants that originate on the construction site from flowing into surface water bodies during the construction period. It addresses the principal activities known to disturb significant amounts ground surface during construction. This SWPPP terminates when areas disturbed for this project reach full stabilization. From a regulatory standpoint, the site has achieved full stabilization once all areas are paved or have at least 70% vegetative coverage. The Texas general permit for construction activities provides for the following types of non - storm water discharges, which could originate at the site: 1. Discharges from fire fighting activities (fire fighting activities do not include washing of trucks, run -off water from training activities, test water from fire suppression systems, and similar activities); 2. Uncontaminated fire hydrant flushings (excluding discharges of hyperchlorinated water, unless the water is first dechlorinated and discharges are not expected to adversely affect aquatic life), which include flushings from systems that utilize potable water, surface water, or groundwater that does not contain additional pollutants (uncontaminated fire hydrant flushings do not include systems utilizing reclaimed wastewater as a source water); 3. Water from the routine external washing of vehicles, the external portion of buildings or structures, and pavement, where detergents and soaps are not used and where spills or leaks of toxic or hazardous materials have not occurred (unless spilled materials have been removed; and if local state, or federal regulations are applicable, the materials are removed according to those regulations), and where the purpose is to remove mud, dirt, or dust; 4. Uncontaminated water used to control dust; 5. Potable water sources including waterline flushings (excluding discharges of hyperchlorinated water, unless the water is first dechlorinated and discharges are not expected to adversely affect aquatic life); 6. Uncontaminated air conditioning condensate; 7. Uncontaminated ground water or spring water, including foundation or footing drains where flows are not contaminated with industrial materials such as solvents; and 8. Lawn watering and similar irrigation drainage. Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 1 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. Other Permitted L)ischarges Any discharge authorized under a separate NPDES, TPDES, or TCEQ permit may be combined with discharges authorized by this general permit, provided those discharges comply with the associated permit. The storm water management controls included in this SWPPP focus on providing control of pollutant discharges with practical approaches that utilizes readily available techniques, expertise, material and equipment. The necessary forms for implementing the SWPPP are included in the Appendices including the Contractor and Sub - Contractor Certification, Delegation Letter, Notice of Intent (NOI), Construction Site Notices, Project Description, and Inspector Qualifications and Reports. The Primary Operator referred to in this SWPPP is The Fain Group, Inc. The Secondary Operator is the City of Coppell. The MS4 Operator for this project is: the City of Coppell Address: City of Coppell Attn: Public Works P.O. Box 9478 Coppell, TX 75019 The MS4 Operator (City of Coppell) will need to be notified of this project 7 days prior to the start of construction with a Construction Site Notice. Upon completion of all construction activities and once the site has been stabilized with vegetation, a construction site notice with the dates of completion will need to be submitted to the MS40perator as well. All site notices are located in Appendix C. Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 2 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LL C. A. Responsibility of Secondary and Primary Operators The Secondary Operator is the City of Coppel% The Secondary Operator with control over construction plans and specifications must: • Ensure the project specifications allow or provide that adequate BMPs are developed to meet the requirements of Part III of this general permit; • Ensure that the SWP3 indicates the areas of the project where they have control over project specifications, including the ability to make modifications in specifications; • Ensure all other operators affected by modifications in project specifications are notified in a timely manner so that those operators may modify their best management practices as necessary to remain compliant with the conditions of this general permit; and • Ensure that the SWP3 for portions of the project where they are operators indicates the name and site - specific TPDES authorization numbers for permittees with the day -to -day operational control over those activities necessary to ensure compliance with the SWP3 and other permit conditions. If the party with day -to -day operational control has not been authorized or has abandoned the site, the person with control over project specifications is considered to be the responsible party until the authority is transferred to another party and the SWP3 is updated. The Primary Operetoris The Fain Group, Inc. The Primary Operator with day -to- day operational control of those activities at a project that are necessary to ensure compliance with an SWP3 and other permit conditions must ensure that the SWP3 accomplishes the following requirements: • Meets the requirements of this general permit for those portions of the project where they are operators; • Identifies the parties responsible for implementation of best management practices (BMPs) described in the SWP3; • Includes, for areas where they have operational control over day -to -day activities, the name and site - specific TPDES authorization number of the parties with control over project specifications, including the ability to make modifications in specifications • To ensure that this project meets the requirements of the TPDES General Permit • Post the signed, dated copy of the Construction Site Notice, prior to the start of construction, at the construction site in a location that is readily available for viewing by the general public and all inspectors from local and state agencies • A Storm Water Pollution Prevention Plan (this SWPPP) must be completed and implemented for the project prior to Construction • A copy of the signed and certified construction site notice must be provided to the operator of any municipal separate storm sewer system Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 3 of 19 Storm Water Pollution Prevention Plan `SWPPP" Brock Environmental Services, LLC. receiving the discharge at least seven days prior to the commencement of construction activities and upon completion of the project submit a signed construction site notice with the date of completion for the project • A signed copy of the SWPPP must be retained at the project site at all times • The Primary Operator and all subcontractors must sign the appropriate certification statement in Appendix A • This SVVPPP must be updated each time there are significant modifications to major construction activities, contractors or pollutant control practices • The Primary Operator will provide qualified personnel to conduct inspections of the project as described previously to assure compliance with the SWPPP. Based on inspection results, the SWPPP and pollution prevention control techniques must be modified by the contractors if necessary to assure that storm water or the identified non -storm water discharges are the only discharges leaving the project site. Refer to TPDES general permit for specific requirements • Discharge of hazardous substances or oil into storm water is subject to reporting requirements. Refer to TPDES general permit for specific guidelines. Each contractor is responsible for complying with these reporting requirements • Questions about the TPDES program can be directed to the Texas Commission on Environmental Quality. A copy of the TPDES General Permit Number TXR150000 is included for reference II. PROJECT DESCRIPTION A. Nature of Construction Activity This project shall consist of new construction to include both site and building work. Site work shall include grading, water, sewer, storm and electrical utilities, concrete paved roadways, curb and gutter system, landscape /irrigation, concrete and decomposed granite walkways, new entry gates and sign, brick pilasters and decorative fencing. The building construction is a columbarium building with a concrete floor slab, wood frame wall and roof construction, brick and natural stone veneer and a metal roof system. Major Soil disturbing activities included in this project are: installation of erosion controls, mobilization of equipment and staging areas, clearing, grubbing and grading, soil excavation and compaction, installation of underground utilities, placement of paving, construction of columbarium building, final grading, and lastly reseeding all disturbed areas for final stabilization. Construction activities include three principal groupings of activities B M P installation, clearing /grading, excavation and backfilling /Vegetation and Final Stabilization. These activities will be overlapping to some degree. Sediment control BMP installation will begin; grading /clearing & excavation, construction of columbarium building will follow, final grading and final stabilization. Entire Contents copyright © by Brock Environmental Services, LL C. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 4 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LLC. For large projects: No onsite dirt work will begin until a minimum of: seven (7) days after the Notice of Intent has been submitted to the Texas Commission OF Environmental Quality (TCEQ) if filing by paper method, if filing electronically you will be issued immediate non - provisional coverage. Once the NO[ has been filed with the TCEQ, a copy of the NOI must be submitted to the City of Coppell. The second grouping of activities includes the clearing and grading, piping, installation of underground utilities, paving operations, and building construction. The last activities will be backfilling, final grading, and lastly landscaping and final stabilization. Following the final site cleanup and stabilization, temporary erosion controls will be removed from the site. When all construction is completed and the site stabilized a construction site notice with the completion date will need to be submitted to the MS4 Operator. Refer to Appendix C. B. Sequence! of Construction Activities The anticipated sequences of construction activities, which will disturb significant amounts of soil, are provided below. Overall, the project is anticipated to begin 7 days after submitting the Construction Site Notice and after the utility locates are confirmed, and is scheduled to take approximately 14 months to complete. Specific activities include. • Installation of sediment controls will begin at the time of mobilization for the equipment and materials. These activities will be the first activities at the site and will be completed prior to any dirt work. • All construction contractors staging will take place at the site and no offsite staging areas will be used. • Preparation of R.O.W., establish perimeter controls using silt fence as necessary for temporary erosion control. • Grubbing, grading and clearing. • Installation of underground utilities • Paving operations • Building construction • Landscaping and final stabilization • When construction is complete, the site is stabilized and approved by the Engineer, remove all temporary sediment controls and reseed any areas disturbed by their removal • Submit a Construction Site Notice to the MS4 Operator and a Notice of Termination to the TCEQ. A detailed site description may be found in Appendix l., Project Description Primary Operator Provide stabilized Construction Entrances and Sediment Barriers. Clean the existing rock and /or add rock as necessary to prevent mud and dirt from being tracked onto existing public streets. Entire Contents copyright © by Brock Environmental Services, LLC. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 5 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LL C. 2. Maintain Sediment Barriers and Silt Traps (if installed) throughout the duration of the project. Replace if required. Remove silt and mud, if required in order to restore sediment containment capacity. 3. Proceed with underground utility construction, subject to the pollutant control requirements of this plan. 4. Upon completion of the grading and utilities, make sure the Construction Entrances, Sediment Barriers and Sediment Traps are clean and functional. 5. Maintain erosion control measures during all phases of site paving and landscaping or temporary vegetation. 6. Remove and dispose of the Construction Entrances, Sediment Barriers and Sediment Traps once their use is no longer needed. Locations for structural controls and details are shown on the Erosion Control Plan (Appendix 1) C. Discharges Associated with Construction Support Activity Examples of construction support activities include, but are not limited to, concrete batch plants, rock crushers, asphalt batch plants, equipment staging areas, material storage yards, material borrow areas, and excavated material disposal areas. Discharges of storm water runoff from construction support activities may be authorized under this general permit, provided that the following conditions are met: (a) the activities are located within one (1) -mile from the boundary of the permitted construction site and directly support the construction activity; (b) a storm water pollution prevention plan is developed according to the provisions of this general permit and includes appropriate controls and measures to reduce erosion and discharge of pollutants in storm water runoff from the construction support activities; and (c) the construction support activities either do not operate beyond the completion date of the construction activity or are authorized under separate TPDES authorization. Separate TPDES authorization may include the TPDES Multi Sector General Permit, TXR050000 (related to storm water discharges associated with industrial activity), separate authorization under this general permit if applicable, coverage under an alternative general permit if available, or authorization under an individual water quality permit. Batch P /aJ7t. Discharges of storm water runoff from concrete batch plants at regulated construction sites may be authorized under the provisions of this general permit provided that all requirements are met for concrete batch plant(s) authorized under this permit. If discharges of storm water runoff from concrete batch plants are not covered under this general permit, then discharges must be authorized under an alternative general permit or individual (permit. This permit does not authorize the discharge or land disposal of any wastewater from concrete batch plants at regulated ,n a, ... ........ Entire Contents copyright © by Brock Environmental Services, LL C. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 6 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LL C. construction sites. Authorization for these wastes must be obtained under an individual permit or an alternative general permit. Equipment Staging Areas Additional erosion controls may be needed to prevent offsite tracking. Any petroleum products stored in the staging area must be in closed containers in good condition to prevent leaking. Matena /Storage Areas These areas should be maintained to keep material limited on the site to materials needed the job. Liquid containers must be kept closed when fluids are not being removed, and drip pans must be used under any containers with valves or spigots attached. Stock Piles- Areas where excavated or additional materials (fill) will be stored will be shown on the erosion plan. Locations ;for structural controls and details for any of the above areas must be show on the Erosion Control Plan. if the locations of these areas are not known at the time the SWPPP is developed, it is the responsibility of the General Contractor to update the Plans to show the exact location of these areas or contact Brock En vironmental Service, LL C. for assistance with these updates D. Estimate of Total Site Area and Disturbed Areas The total area for this project consists of approximately 32.5 acres of which 15.5 acres will be disturbed by this project. E. Soil Data / Quality of Discharge from site. Soils consist of dark grayish brown sandy clay. Refer to the Geotechnical report for additional information regarding soil type. There is no information on the quality of discharge from the site. F. Storm Water Management Storm water runoff will be provided by ditches, inlets and storm sewer system which carry drainage within the R.O.W. to the lows within the roadways and project site, which drains to natural facilities maintained by the City of Coppell. G. Surface Waters and Wetlands The potential receiving water body is: Cottonwood Branch to Denton Creek, which potentially flows to the Elm Fork of the Trinity River. To the best of our knowledge, this project is not located within any known wetland areas. H. Standard Industrial Classification Codes The major construction activities will have the Standard Industrial Classification codes listed below: 1629 I. Endangered Species Information To the beat of our knowledge, there are neither endangered or threatened species nor critical habitat found in the proximity of this project. See Appendix J Entire Contents copyright © by Brock Environmental Services, LLC. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 7 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LLC. J. Historic Preservation Information There are no written agreements regarding historic preservation with respect to this project, to the best of our knowledge. See Appendix K. Common (Plan Development Any project that has a disturbed area less than one acre, but that is part of a larger plan of development must follow the guidelines for construction of a Large Project, and the Operator of the project must file an NOI and upon completion of the project an NOT must be filed. L. Notice of Intent / Notice of Termination / Notice of Change Small Projects Projects covered by this Permit which have a combined exposed area less than 5 acres are classified as a "Small Construction Activity" per part II of the TPDES General Permit No. TXR150000. Being a "Small Construction Activity" the site is not required to submit an NOI. Large Projects primary operators must submit a Notice of Intent (NOI), using a form provided in Appendix D, at least seven (7) days prior to commencing construction activities, or if utilizing electronic submittal, prior to commencing construction activities. If an additional primary operator is added after the initial NOI is submitted, the new primary operator must submit an NOI at least seven (7) days before assuming operational control, or if utilizing electronic NOI submittal, prior to assuming operational control. If the primary operator changes after the initial NOI is submitted, the new primary operator must submit a paper NOI or an electronic NOI at least ten (10) days before assuming operational control; Notice of Termination -This form is to be filled out and sent to the TQEQ and a copy mailed to the MS4 Operator that receives storm water discharge from the construction site once the site has reached final stabilization. Notice ofC;hange Form- This form is to be used if it is found out to be that relevant information provided in the original NOI changes. An NOC must be submitted at least 14 days before the change occurs, if possible. Where 14 day advance notice is not possible the operator must submit an NOC within 14 days of the discovery. III. STORM WATER POLLUTION MEASURES AND CONTROLS A. Erosion and Sediment Controls Erosion and sediment control practices can be divided into three broad categories: (1) soil stabilization, (2) structural controls, and (3) management practices. Each of these categories has temporary and permanent control measures to be considered. Soil stabilization and structural practices will be installed and maintained in accordance with the Project construction drawings and specifications. Entire Contents copyright © by Brock Environmental Services, LL C. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 8 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. 1. Soil Stabilization Stripping of vegetation will be conducted in a manner that minimizes erosion. Cut and fill operations will follow the grading plans and be kept. to a minimum where practicable. The Contractor is responsible for planting vegetation (and establishing at least 70% coverage) on all ground disturbed during construction. The Primary Operator is responsible for watering and maintaining the vegetation until final project is accepted by the Secondary Operator. Erosion control and stabilization measures must be initiated as soon as practicable in portions of the site where construction activities have temporarily ceased. Stabilization measures that provide a protective cover must be initiated as soon as practicable in portions of the site where construction activities have permanently ceased. Except as provided in (A) through (D) below, these measures must be initiated no more than 14 days after the construction activity in that portion of the site has temporarily or permanently ceased: (A) Where the initiation of stabilization measures by the 14th day after construction activity temporarily or permanently ceased is precluded by snow cover or frozen ground conditions, stabilization measures must be initiated as soon as practicable. (B) Where construction activity on a portion of the site has temporarily ceased, and earth disturbing activities will be resumed within 21 days, temporary erosion control and stabilization measures are not required on that portion of site. (C) In arid areas, semiarid areas, and areas experiencing droughts where the initiation of stabilization measures by the 14th day after construction activity has temporarily or permanently ceased or is precluded by arid conditions, erosion control and stabilization measures must be initiated as soon as practicable. Where vegetative controls are not feasible due to arid conditions, the operator shall install non - vegetative erosion controls. If non - vegetative controls are not feasible, the operator shall install temporary sediment controls as required in Paragraph (D) below. (D) In areas where temporary stabilization measures are infeasible, the operator may alternatively utilize temporary perimeter controls. The operator must document in the SWP3 the reason why stabilization measures are not feasible, and must demonstrate that the perimeter controls will retain sediment on site to the extent practicable. The operator must continue to inspect the BMPs at the frequency established in Section III.F.7.(a) for unstabilized sites. Entire Contents copyright © by Brock Environmental Services, LL C. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 9 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. Final stabilization must be achieved prior to termination of permit coverage. Refer to Appendix K "Best Management Practices" for details on stabilization measures. 2. Structural Controls Erosion and sediment controls will be constructed and maintained according to the standards in the construction drawings and specifications, and the site map. Listed below are the structural controls to be used at the Project site. m. Silt Fence • Inlet Protection • Construction Entrance • Rock Berm • Seeding and Sodding 3. Storm Water Management Practices The following are some management considerations, which may be employed in conjunction with the erosion and sediment controls described above: 1. Construction will be sequenced so that no area remains exposed for unnecessarily long periods of time. :?. Materials are scheduled to be on -hand to complete the work without delay :3. The time of year is considered, and crews will be prepared for sudden thunderstorms. 4. Erosion and sediment controls will be installed immediately. a. A regular maintenance schedule for erosion and sediment control practices should be carried out. G. One individual is designated as responsible for implementing the erosion and sediment control plan. 4. Storm Water Management Controls Storm water management during construction will consist of containing pollutants on the site. Soil is the most significant potential pollutant. It will be contained by the Silt Barriers and Sediment Traps. These controls must be properly installed and maintained by the contractor in order to contain soil on the site. Chemicals, fuels and similar potential pollutants will be contained by careful handling and storage and by utilizing portable or plastic covered Earth Containment Berms as needed. B. Other Controls 1. Dust Control / Off -site Vehicle Tracking Entire Contents copyright © by Brock Environmental Services, LLC. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 10 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LLC. During construction, water trucks will be used by each contractor to reduce dust as needed. After construction, the site will be stabilized as described elsewhere in order to reduce dust. Construction traffic shall enter and exit at the site at a Construction Entrance, which will be stabilized after the completion of the project. Construction traffic will enter and exit the work area at a Construction Entrance with a stabilized rock entrance or equivalent device. The purpose of the rock entrance is to minimize the amount of soil and mud that is tracked onto existing streets. If sediment escapes the project site, offsite accumulations of sediment will be removed at a frequency sufficient to minimize offsite impacts. 2. Waste Disposal a. All solid waste materials, including disposable materials incidental to the major construction activities, will be collected in containers. The containers will be emptied periodically and hauled to a landfill. Each container must be covered to prevent the blowing of debris from the container. Each contractor is responsible for proper disposal of his own trash. b. Substances that have the potential for polluting surface and /or groundwater must be controlled by whatever means necessary to ensure that they do not discharge from the site. It is the responsibility of each contractor to make sure pollutant discharge is avoided. As an example, special care shall be exercised during equipment fueling and servicing operations. If a spill occurs, it shall be contained and disposed of so that it will not flow from the site or soak in to the soil. In this regard, potentially polluting substances shall be handled in a manner consistent with the impact they represent. 3. Sanitary / Septic Contractors shall comply with all Federal, State and local sanitary sewer septic system regulations. Temporary portable sanitary facillities shall be provided at the site by each contractor throughout construction activities. They shall be utilized by construction personnel and serviced regularly by a commercial operator. All Expenses associated with providing sanitary facilities are the responsibility of the contractors. 4. Water Source Water used to establish and maintain grass, to control dust, and for other purposes during the construction phase must originate from a public water supply or private well approved by the Texas State Department of Health. Temporary fire hydrants meters shall be used until such time the potable water is available within the site. Entire Contents copyright 0 by Brock Environmental Services, LLC. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 11 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LL C. 5. Construction Phase "Best Management Practices" (BMPs) During the construction phase, the Operator (s) will also implement the following measures: a. Equipment fueling, maintenance and cleaning will only be done in protected areas. The areas will be surrounded by a temporary 15" high perimeter Liquid tight Earth Containment Berm with a liner covered by plastic sheeting. b. Equipment wash down (except for wheel washes) shall take place within an area surrounded by an Earth Containment Berm. Use of detergents is prohibited. C. Chemicals, paints, solvents, fertilizers and other toxic or hazardous materials shall be stored in waterproof containers. Except during application, the containers shall be kept in trucks or within storage facilities. Run -off containing such materials shall be collected, removed from the site and disposed of at an approved solid waste or chemical disposal facility. 6. Hazardous Material Storage Chemicals, fertilizers and other toxic or hazardous materials should be stored in their original containers (if original container is not resealable, store the products in clearly labeled, waterproof containers). Except during application, the containers should be kept in trucks or in bermed areas within covered storage facilities. Storm water runoff containing such materials shall be collected, removed from the site and disposed of in accordance with the federal, state and local regulations. As may be required by federal, state or local regulations, the Operator should have a Hazardous Materials Management Plan and /or Hazardous Materials Spill and Prevention Program in place. A foreman or supervisor should be designated in writing to oversee, enforce and instruct construction workers on proper hazardous materials storage and handling procedures. Should hazardous materials be stored on site this erosion and sediment control plan shall be annotated to indicate where the materials will be stored. These addlitional controls are necessary to minimize or prevent pollutants, such as chemicals, oil and grease, metals, floatables, and sanitary wastes from entering storm water runoff. 7. Spill Prevention and Response Consistent with the general permit requirements, all potential pollutants other than sediment will be handled and disposed of in a manner that does not cause contamination of storm water. Non- Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 12 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. sediment pollutants that may be present during construction activities include: • Petroleum products including fuel, lubricants, hydraulic fluids, and form oils. • Polymer used for soil stabilization • Water treatment chemicals (coagulant, acid, sodium bicarbonate) • Concrete • Paints • Fertilizers These materials, and other materials used during construction with the potential to impact storm water, will be stored, managed, used, and disposed of in a manner that minimizes the potential for releases to the environment and especially into storm water. Spill Response Procedures, Contact Numbers and Spill Response Forms are included in Appendix N 8. Concrete Saw Cutting Concrete waste at construction sites comes in two forms: 1) excess fresh concrete mix including truck and equipment washing, and 2) concrete dust and concrete debris resulting from demolition. Both forms have the potential to impact water quality through storm water runoff contact with the waste. Slurry Collection & Disposal During saw cutting operations, the slurry and cuttings shall be continuously vacuumed to control the flow of water from the operations site. The slurry and cuttings shall not be allowed to drain to the storm drain system, swale, stream or other water body. The! slurry and cuttings shall not be allowed to remain on the pavement to dry out. Develop pre- determined, safe slurry disposal areas. Collected slurry and cuttings shall be discharged in an area protected by one or more sediment removal BMPs and shall be done in a manner that does not result in a violation of groundwater or surface water quality standards. Never dump waste illicitly or without property owner's knowledge and consent. Slurry may be disposed of in facilities designated for washdown of concrete trucks. Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 13 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LLC. 9. Concrete Truck Wash Out Requirements Direct discharge of concrete truck wash out water to surface water in the state, including discharge to storm sewers, is prohibited by this general permit. Concrete truck wash out water shall be discharged to areas at the construction site where structural controls have been established to prevent direct discharge to surface waters, or to areas that have a minimal slope that allow infiltration and filtering of wash out water to prevent direct discharge to surface waters. Structural controls may consist of temporary berms, temporary shallow pits, temporary storage tanks with slow rate release, or other reasonable measures to prevent runoff from the construction site. Wash out of concrete trucks during rainfall events shall be minimized. The direct discharge of concrete truck wash out water is prohibited at all times, and the operator shall insure that its BMPs are sufficient to prevent the discharge of concrete truck washout as the result of rain. The discharge of wash out water shall not cause or contribute to groundwater contamination. If a SWP3 is required to be implemented, the SWP3 shall include concrete wash out areas on the associated map. 10. Storm Water Runoff from Concrete Batch Plants Discharges of storm water runoff from concrete batch plants at regulated construction sites may be authorized under the provisions of this general permit provided that the following requirements are met for concrete batch plant(s) authorized under this permit. If discharges of storm water runoff from concrete batch plants are not covered under this general permit, then discharges must be authorized under an alternative general permit or individual permit. This permit does not authorize the discharge or land disposal of any wastewater from concrete batch plants at regulated construction sites. Authorization for these wastes must be obtained under an individual permit or an alternative general permit. See Appendix M for Concrete Batch Plants Requirements IV. STATE AND LOCAL PROGRAMS To the best Knowledge of all parties involved with the implementation of this SWP3, all measures and considerations specified in this plan meet the requirements of the TCEQ TPDES General Permit TXR150000, the City of Coppell and Dallas County. (a) Permittees must ensure that the SWP3 is consistent with requirements specified in applicable sediment and erosion site plans Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 14 of 19 Storm Water Pollution Prevention Plan SWPPP" Brock Environmental Services, LL C. or site permits, or storm water management site plans or site permits approved by federal, state, or local officials. (b) SWP3s must be updated as necessary to remain consistent with any changes applicable to protecting surface water resources in sediment erosion site plans or site permits, or storm water management site plans or site permits approved by state or local official for which the permittee receives written notice. (c) If the permittee is required to prepare a separate management plan, including but not limited to a Water Pollution Abatement Plan or Contributing Zone Plan in accordance with 30 TAC Chapter 213 (related to the Edwards Aquifer), then a copy of that plan must be either included in the SWP3 or made readily available upon request to authorized personnel of the TCEQ. The permittee shall maintain a copy of the approval letter for the plan in its SWP3. V. INSPECTION AND MAINTENANCE All disturbed areas, as well as all erosion and sediment controls devices, will be inspected every fourteen (14) calendar days and after a rain event greater than 1/2 inch. Inspections shall be conducted, and a written report prepared by a qualified personnel familiar with the TPDES general permit, this SWPPP and the project. The Primary Operator will provide qualified personnel to conduct the mandatory inspections, keep a current copy of the SWPPP on the project site, post the Project Construction Site Notices (Appendix C), and insert inspection report forms (Appendix J) (and all other documents relating to storm water pollution prevention) in the Plan. A. Material Storage Inspections Inspectors must evaluate areas used for storage of materials that are exposed to precipitation. The purpose is to ensure that materials are protected and /or impounded so that pollutants cannot discharge from storage areas. Offsite material storage areas used solely by the subject project (none anticipated) are considered to be part of the project by the TCEQ and must be included in the site inspection report. B. Soil Stabilization Inspections Seeded areas will be inspected to confirm that a healthy stand of grass is maintained. The site has achieved final stabilization once all areas are covered with pavement, or have a stand of grass with at least 70% uniform density. The density of 70% or greater must be maintained to be considered as stabilized. The contractor is responsible for watering, fertilizing and reseeding disturbed areas as needed to achieve this goal. C. Erosion and Sediment Control Inspections All controls should be inspected at least once every seven (7) calendar days. It is also recommended that "walk through inspections" be conducted prior to Entire Contents copyright © by Brock Environmental Services, LL C. Al/ rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 15 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. storm events. The following is a list of inspection /maintenance practices that will be used for specific controls: Silt Fencing: Filter fabric will be replaced whenever it has deteriorated to such an extent that it reduces the effectiveness of the fabric. Sediment should be removed when it reaches approximately one -half the height of the fence. Construction Entrance: Additional stone /rock will be placed at the construction entrance as needed to prevent tracking of mud onto public roads. All material spilled, dropped, wash, or tracked onto roadways from vehicles leaving the site will be removed immediately. Inlet Protection: Sediment should be removed when it reaches approximately one -half the height of the fence. If a sump is used, Sediment should be removed when the volume of the basin is reduced by 50 %. Rock Berms: Additional stone /rock or woven wire should be added as needed to provide storm water velocity reduction and maintain the stability of the rock berm. Vegetation: Protect newly seeded areas from excessive runoff and traffic until vegetation is established. Establish a watering and fertilizing schedule. Erosion Control Blankets: Should be inspected regularly for bare spots caused by weather related events. Missing or loose blankets must be replaced or re- anchored. Also check for excess sediment deposited from runoff. Remove sediment and /or replace blanket if necessary. Concrete Waste: Concrete waste at construction sites comes in two forms: 1) excess fresh concrete mix including truck and equipment washing, and 2) concrete dust and concrete debris resulting from demolition, saw cutting and batching. All these forms have the potential to impact water quality through storm water runoff contact with the waste. Concrete Washout: All concrete truck washouts shall be discharged in an area protected by one or more sediment removal BMPs and shall be done in a manner that does not result in a violation of groundwater or surface water quality standards. Good Housekeeping: Litter, demolition debris, and equipment chemicals exposed to storm water shall be prevented from becoming a pollutant source for storm water discharges by means of screening of outfalls and daily pickup of litter. Discharge of Standing Water: Discharge of standing water will not occur unless the discharge will not cause an exceedance of Surface Water Quality Limits. In the event that sediment escapes the construction site, off -site accumulations of sediment must be removed at a frequency sufficient to minimize adverse impacts. An Entire Contents copyright © by Brock Environmental Services, LL C. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 16 of 19 Storm Water Pollution Prevention Plan `SWPPP" Brock Environmental Services, LLC. example of this may be the situation where sediment has washed into the street and could be carried into the storm sewers by the next rainfall and /or pose a safety hazard to users of public streets. Inspections must evaluate areas used for storage of materials that are exposed to precipitation. The purpose is to ensure that materials are protected and /or impounded so that pollutants cannot discharge from the storage area. Inspection reports shall be completed including scope of the inspection, name(s) and qualifications of personnel making the inspection, the date of the inspection, observed major construction activities, and actions taken as a result of the inspection. The inspection report should state whether the site was in compliance or identify any incidents of non compliance. The report shall be signed in accordance with the TPDES general permit and filed in the SWPPP. A sample Inspection report is included in Appendix J. Inspection report shall be kept in the Secondary Operators file, along with the Storm Water Pollution Prevention Plan, for at least three years from the date that the site achieves final stabilization. VI. MODIFICATIONS / REVISIONS TO SWPPP Based on inspection results, any necessary modification to this SWPPP shall be implemented within seven (7) calendar days of the inspection. A modification is necessary if a control measure or operational procedure does not provide adequate pollutant control. All revisions shall be recorded on the Update Form (Appendix F) within seven calendar clays of the inspection. It is the responsibility of each operator or subcontractor to maintain effective pollutant discharge controls. Physical site conditions or contractor /subcontractor practices could make it necessary to install more controls than were originally planned. For example, localized concentrations of surface runoff or unusually steep areas could require additional silt barrier, or other structural controls. Assessing the need for, and installing additional controls will be a continuing Owner /contractor responsibility until final stabilization is achieved. Owner and contractors implementing this SWPPP must remain alert to the need to periodically refine and update this SWPPP in order to accomplish the intended goals. VII. PROCEDURAL REQUIREMENTS During construction, the Primary and Secondary Operators and subcontractors must comply with the following requirements of the TCEQ TPDES Storm Water General Permit: This SWPPP must be certified by the Primary and Secondary Operators for the Project prior to ground disturbance. Entire Contents copyright © by Brock Environmental Services, LLC. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 17 of 19 Storm Water Pollution Prevention Plan "SWPPP" Brock Environmental Services, LLC. It is the Responsibility for all Primary Operators of the project to submit an NOI with the TCEQ and a NOT up on completion of the project. The NOI must be completed, signed and postmarked at least 7 days prior to beginning of the Project's on -site work. Each entity meeting the criteria for an operator must submit an NOI to the TCEQ, Storm Water & General Permits Team, MC -228, P. O. Box 13087, Austin, Texas 78711 -3087. A copy of the NOI must be provided to the operator of any MS4 receiving the discharge. If the applicant becomes aware that it failed to submit any relevant facts, or submitted incorrect information in an NOI, the correct information must be provided to the executive director using the Notice of Change (NOC) form within 14 days after discovery. If relevant information provided in the NOI changes, a NOC must be submitted within 14 days of the change. A copy of the NOC must be provided to the operator of any MS4 receiving the discharge. For small projects and for Secondary Operators, a copy of the signed TPDES Construction Site Notice must be conspicuously posted near the main entrance of the site prior to commencing construction activities, and the Notices must be maintained in that, location until completion of the construction activity. Projects requiring only a Construction Site Notices and all Secondary Operators, must submit a copy of the signed TPDES Construction Site Notice to the MS4 Operator upon completion of all construction, with the dates of completion filled in on the bottom of the Construction Site Notice. The Primary and Secondary Operators are required to keep a signed copy of this SWPPP and supporting documents on -site. In maintaining plans, all records and supporting documents should be compiled together in an orderly fashion. Federal and State regulations require permittee(s) to keep the SWPPP and all reports and documents for at least three years after the project is complete. This provision ensures that all records are available in the event the documents need to be reviewed. All operators /subcontractors involved in any earth disturbing activities, must sign the appropriate certification statement located in Appendix A. At a minimum, this includes the excavation and grading contractors. The Secondary Operator, its Primary Operator and /or subcontractors will conduct inspections of the project as described previously to assure compliance with this SWPPP. Based on inspection results, this SWPPP and BMPs may require modification by the Owner and /or contractor to assure the quality of storm water or the identified non -storm water discharges are leaving the site in compliance with the TCEQ TPDES Storm Water General Permit. All modifications must be implemented within seven calendar days after the inspection. The Secondary Operator must approve modifications specific to construction projects prior to implementation by the Primary Operator and /or subcontractor as required under the TCEQ TPDES Storm Water General Permit. This SWPPP may be amended at any time if it is found to inadequately address conditions of the TCEQ TPDES Storm Water General Permit or any amendments to the permit. This SWPPP must be updated within seven calendar days from the date of inspection each time there is significant modifications to construction activities, Entire Contents copyright © by Brock Environmental Services, LLC. All rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 18 of 19 Storm Water Pollution Prevention ,Plan `SWPPP" Brock Environmental Services, LLC. Primary Operator subcontractors, or pollutant control practices. The Record of SWPPP Revision is located in Appendix F. This SWPPP along with supporting documentation must be retained for a period of three (3) years after the completion of the Project. It is recommended that each of the operator(s) maintain a copy of the SWPPP for the three -year period The SWPPP is not submitted to the TCEQ unless the Executive Director specifically requests a copy for review. However, when the Executive Director requests the SWPPP, the permittee(s) should submit it in a timely manner. In addition, when requested, permittee(s) should also submit the SWPPP to state or local sediment and erosion or storm water management agencies or to the municipal operator of the TCEQ TPDES storm water permitted municipal separate storm sewer system to which the site discharges. Entire Contents copyright © by Brock Environmental Services, LLC. A# rights reserved. Reproduction in whole or part without permission is prohibited. April, 2008 Page 19 of 19 VIII. Preparers Certification Name of Preparer: BROCK ENVIRONMENTAL SERVICES, LLC. 422 East Interstate 30, Suite F Royse City, Texas '75189 972 - 636 -7717 office 972 - 636 -7719 fax I, Jennie D. Brock:, owner of Brock Environmental Services, do hereby certify that the foregoing Storm Water Pollution Prevention Plan was prepared by me, under the Terms and Conditions of the TPDES General Permit No. TXR 150000. This certification does not cover any maintenance or inspection reporting required under the permit. The information and :materials which were not generated by me have been furnished to me by my clients, their employees and / or engineers in the compilation of this Plan and the attached documents. Preparer has prepared the erosion/sediment control plan in accordance with guidelines set forth by local and state authorities. "I certify under penalty o f law that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personnel properly gathered and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware there are specific penalties for submitting false information, including the possibilities offne and imprisonment for knowing violations. " Signature: Printed Name: Jennie D. Brock, President Company Name: Brock Environmental Services, LLC. Date: q'0 AppendixA Contractor Certification Sub Contractor Certifications SWPPP Certification: The Owner (Secondary Operator) and the General Contractor(s) (Primary Operator) will need to sign this certification "This is stating that both the Owner and General Contractor agree to abide by the Storm Water Pollution Prevention Plan anal the Guidelines set forth by the TCEQ and General Permit No. TXR 15000" Sub Contractor Certifications: Each subcontractor that will be disturbing soils as a part of their scope of work for this project will need to fill out and sign a subcontractor certification, ex erosion control installer, utilities, trenching or boring company, dirt contractor, concrete, electrical, landscaping etc. It is the Responsibility of the General Contractor to ensure that the Sub Contractors complete and sign the Subcontractors certifications. All signed certifications are to remain in the SWPPP throughout the duration of the project. Storm Water Pollution Prevention Plan Secondary It Primary Operator Certification Form Site Description: As identified on the Storm Water Pollution Prevention Plan (SWPPP) Project Name: Rolling Oaks Memorial Center Project Location: 400 South Freeport Parkway Cogpell Texas 75019 A duly authorized representative of the Owner and a duly authorized representative of the Contractor must be identified and sign the following certification statement. (Separate documents maybe signed if desired). Persons signing this certification must do so in compliance with the signatory requirements of the permit as found at CFR 122.22 as follows: For a corporation: by a responsible corporate office. For the purpose of this section, a responsible corporate officer means: a president, secretary, treasurer, or vice - president of the corporation in charge of a principal business function or any other person who performs similar policy or decision making functions for the corporation; or the manger of one or more manufacturing, production or operating facilities employing more than 250 persons or having gross annual sales or expenditures exceeding $25,000,000 (in second quarter 1980 dollars) if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively. For the municipality, State, Federal or other public agency: by either a principal executive officer or ranking elected official. For purposes of this section, a principal executive officer of a federal agency includes (1) the chief executive officer of the agency, or (2) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g. Regional Administrators of EPA). "l certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personal properly gathered and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. l am aware there are specific penalties for submitting false information, including the possibilities of fine and imprisonment for knowing violations. " SECONDARY OPERATOR: THE CITY OF COPPELL By :- _ Title: ,1Z,-,L Date: Printed /a PRIM PERATOR: THE FAIN GROUP INC. By: c Title: t] P Date: 57-13 Printed Name: ` UA This certification is to be kept on file with the SWPPP for this project. Do not send to the TCEQ. SUBCONTRACTOR CERTIFICATION STORM WATER POLLUTION PREVENTION PLAN Subcontractor Certification for: Project Name: Rolling Oaks Memorial Center Project Location: 400 South Freeport Parkway Coppell, Texas 75019 Each contractor and subcontractor engaged in activities that disturb surface soils must be identified and must sign the following certification statement. Name of Subcontractor: Address: Telephone No: Type of Construction Services to be Provided: Certification Statement: "l certify under penalty of law that/ understand the terms and conditions of the genera/ National Pollutant Discharge Elimination System (NPDES) permit that authorizes the storm water discharges associated with industrial activity from the construction site identified as part of this certification" This certification is hereby signed in reference to the above named construction: Name: Title Signature: Date: Appendix B Delegation Letter Owner's (Secondary Operator) responsibility; The Owner will need to delegate the Contractor who will have day to day operational control of the construction project to ensure compliance with the SWPPP that has been developed for this site by signing the Delegation letter. Once the owner has signed the Delegation letter, make a copy of the Delegation letter on your Company Letterhead and mail to the Executive Director of the TCEQ in the envelope that has been provided. Then put a copy back in the SWPPP behind Appendix B. Contractor's (Primary Operator) responsibility; The Contractor will need to delegate the person or specifically described position as an authorized person for signing Inspection reports, storm water pollution prevention plans, certifications or other information as required. This person or position is authorized to sign reports, plans or certifications other that an NOI application. Once the Contractor has signed the Delegation letter, make a copy of the Delegation letter on your Company Letterhead and mail to the Executive Director of the TCEQ in the envelope that has been provided. Then put a copy back in the SWPPP behind Appendix B. May 2, 2008 "Executive Director" TCEQ Storm Water and General Permits Team: MC -148 P.O. Box 13087 Austin, TX 78711 -3087 Dear Executive Director, This letter serves to designate a Company who will have day -to -day operational controls of those activities at a construction site which are necessary to ensure compliance with the storm water pollution prevention plan that has been developed for this site. Name: The Fain Group Inc. Title: Primary Operator / Daily Operational Controls Project Name: Rolling Oaks Memorial Center Project Location: 400 South Freeport Parkway, Coppell, Texas 75019 By signing this authorization, I confirm that I meet the following requirements to make such a designation asset forth in the Texas Administrative Code Title 30 Part 1 Chapter 305 Subchapter C Rule 305.44 and Title 30 Part 1 Chapter 305 Subchapter F Rule 305.128. V certify under penalty of la w that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and plete. Iam aware there are specific penalties for submitting false information, including :�ibilities of fine and imprisonment for knowing violations. " Signature: ''/ Date:f'�� f Printed Name: Title: Secondary Operator: The City of Coppell May 2, 2008 "Executive Director" TCEQ Storm Water and General Permits Team: MC -148 P.O. Box 13087 Austin, TX 78711 -3087 Dear Executive Director, This letter serves to designate either a person or specifically described position as an authorized person for signing reports, storm water pollution prevention plans, certifications or other information as required. The following person or position is hereby authorized to sign reports, plans or certifications other than an NOI application. A qualified Storm Water Inspector Employed by: Brock Environmental Services Project Name: Rolling Oaks Memorial Center Project Location: 400 South Freeport Parkway, Coppell, Texas 75019 By signing this authorization, I confirm that I meet the following requirements to make such a designation asset forth in the Texas Administrative Code Title 30 Part 1 Chapter 305 Subchapter C Rule 305.44 and Title 30 Part 1 Chapter 305 Subchapter F Rule 305.128. 7 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. l am aware there are specific penalties for submitting false information, inciudi'aa the possibilities of fine and imprisonment for knowing violations" Signature:` Date: 5--l3 --d8 Printed Name: �� A GLa Title: tl- Company Name: THE FAIN GROUP, INC. Appendix C TPDES Construction Site Notices Large Site Notice (Primary Operator) / Secondary Operator Site Notice Small Construction Site Notice / Small Construction Site for Low Erosion Potential Contractor's (Primary Operator) responsibility; Large Construction Site Notice - Primary Operator Notice This notice is for construction sites that are greater than 5 acres including the larger common plan of development. This notice is posted at the site along with a copy of the NOI (as applicable) by the Contractor in a readily accessible place viewable by the public. Please review the information and make sure it is correct then mail a copy to the MS4 operator in the envelope that has been provided. Owner's responsibility (Secondary Operator); Secondary Operator Site Notice This notice is for Secondary Operators of construction sites equal to or greater than 5 acres. This notice must be signed by the Secondary Operator and posted at the site in a readily accessible place viewable by the public -A copy of the signed Secondary Operator Notice must be sent to the MS4 operator in the envelope that has been provided. Owner and Contractor's responsibility; Small Construction Site Notice This notice is used for Construction projects that disturb less than 5 acres. Both the Owner and Contractor must sign the notices and mail a copy to the MS4 Operator in the envelope that has been provided. These notices must be posted at the site in a readily accessible place viewable by the public. Upon completion of all construction activities and once the site has been stabilized with vegetation, a construction site notice with the dates of completion will need to be submitted to the MS40perator as well LARGE CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 "SECONDARY OPERATOR " NOTICE This notice applies to secondan✓ operators of construction sites operating under Part II.E.3. of the TPDES General Permit Number IrXR150000 for discharges of storm water runoff from construction sites equal to or greater than five acres, including the larger common plan of development. The information on this notice is required in Part III.E.2. of the general permit. Additional information regarding the TCEQ storm water permit program may be found on the internet at: http:! /www.tceq.state.tx.us /nav /permits /sw permits.html Site- Specific TPDES Authorization Number: Operator Name: The City of Coppell Contact Name and Phone Number: # 972 - 304 -3643 Construction For: Rolling Oaks Memorial Center Project Description: Physical address or description of the 400 South Freeport Parkway sites location, and estimated start date and projected end Coppell, Texas 75019 date, or date that disturbed soils will be stabilized. Construction Period: Start Date: May 15, 2008 End Date: May 21, 2009 Location of Storm Water Pollution Prevention Plan (SWP3): On Site with Project Manager For Large Construction Activities Authorized Under Part II.E.3. (Obtaining Authorization to Discharge) the following certification must: be completed: I (Typed or Printed Name Person Completing This Certification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part II.E.2. of TPDES General Permit TXR150000 and agree to comply with the terms of this permit. A storm water pollution prevention plan has been developed and will be implemented prior to construction, according to permit requirements. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4. I am aware there are significant penalties for providing false information or for co Xd mg unauthorized discharges, including the possibility of fine and imprisonment for knowing violations. Signature and Title_ = ' C ( � /� Date P -c;4- Date Notice Removed MS4 operator notified per Part H.F. 3. LARGE CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 "SECONDARY OPERA TOR " NOTICE This notice applies to secondary operators of construction sites operating under Part II.E.3. of the TPDES General Permit Number TXR150000 for discharges of storm water runoff from construction sites equal to or greater than five acres, including the larger common plan of development. The information on this notice is required in Part III.E.2. of the general permit. Additional information regarding the TCEQ storm water permit program may be found on the internet at: ham: —rww.tceq.state.tx.us/nav/permits/sw–permits.htmI Site - Specific TPDES Authorization Number: Operator Name: The City of Coppell Contact Name and Phone Number: # 972 - 304 -3643 Construction For: Project Description: Physical address or description of the Rolling Oaks Memorial Center 400 South Freeport Parkway sites location, and estimated start date and projected end Coppell, Texas 75019 date, or date that disturbed soils will be stabilized. Construction Period: Start Date: May 15, 2008 End Date: May 21, 2009 Location of Storm Water Pollution Prevention Plan (SWP3): On Site with Project Manager For Large Construction Activities Authorized Under Part II.E.3. (Obtaining Authorization to Discharge) the following certification must be completed: I (Typed or Printed Name Person Completing This Certification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part II.E.2. of TPDES General Permit TXR150000 and agree to comply with the terms of this permit. A storm water pollution prevention plan has been developed and will be implemented prior to construction, according to permit requirements. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4. I am aware there are significant penalties for providing false information or for conducting unauthorized discharges, including the possibility of fine and imprisonment for knowing violations. Signature and Title, Date Date Notice Removed MS4 operator notified per Part H. F. 3. rrrri LARGE CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 "PRIMARY OPERATOR" NOTICE This notice applies to construction sites operating under Part II.E.3. of the TPDES General Permit Number TXR150000 for discharges of storm water runoff from construction sites equal to or greater than five acres, including the larger common plan of development. The information on this notice is required in Part III.E.2. of the general permit. This notice shall be posted along with a copy of the signed Notice of Intent (NOI), as applicable. Additional information regarding the TCEQ storm water permit program may be found on the internet at: http. / /w,ffv.t:ceg. state .tx.us /nay /permits /sw12ermits html Site - Specific TPDES Authorization Number: Operator Name: The Fain Group Contact Name and Phone Number: Brain McClain - Superintendent cell # 817 - 734 -4225 office # 817 - 927 -4388 Construction For: Rolling Oaks Memorial Center Project Description: Physical address or description of the 400 South Freeport Parkway sites location, and estimated start date and projected end Coppell, Texas 75109 date, or date that disturbed soils will be stabilized. Construction Period: Start Date: May 15, 2008 End Date: May 21, 2009 Location of Storm Water Pollution Prevention Plan: On site with Project Manager Appendix D NOI / NOT / NOC Form This Form is for Primary Operator only if it is a large job; Notice of intent Form- This form is for projects that disturb more than 5 acres or are part of a common plan of development. This form is to be signed by a Company Ofcerand mailed to the TCEQ and a copy mailed to the MS4 Operator that receives storm water discharge from the construction site. There is also a fee that must be paid to the TCEQ with the submission of an NOI. Notice of Termination -This form is to be filled out and sent to the TQEQ and a copy mailed to the MS4 Operator that receives storm water discharge from the construction site once the site has reached final stabilization. Notice of Change Form- This form is to be used if it is found out to be that relevant information provided in the original NOI changes. An NOC must be submitted at least 14 days before the change occurs, if possible. Where 14 day advance notice is not possible the operator must submit an NOC within 14 days of the discovery. TCEQ Office Use Only Notice of Intent (NOI) for Storm Water Permit No.: TXR15 Discharges Associated with Construction RN: Activity under TPDES General Permit CN: TCEQ (TXR150000) Ref No: Sign up now for ePerinits NOI at www6.tceg.state.tx.us /steers Get Instant Permit Coverage and only pay a $225 application fee. 000,eo If filing a paper NOI you can pay the application fee on line? Go to www.tceastate.tx.us /enav Select Fee Type: GENERAL PERMIT CONSTRUCTION STORM WATER DISCHARGE NOI APPLICATION If submitting a paper NOI, coverage under the general permit starts seven (7) days after the date postmarked for delivery to TCEQ. IMPORTANT: -Use the INSTRUCTIONS to fill out each question in this form. -Use the attached CUSTOMER CHECKLIST to make certain all you filled out all required information. -Incom lete applications WILL delay approval or result in automatic Denial. Renewal of General Permit Is this NOI to renew an ACTIVE permit'? Yes - What is your permit number? Permit No. TXR15_ 10 - a permit number will be issued. Application Fee if mailing a paper NOI: You must pay the $325 Application Fee to TCEQ for the application to be considered complete. Payment and NOI must be mailed to separate ,addresses. See instructions for correct mailing addresses. Provide your payment information below, for us to verify payment of the application fee: l7 Mailed: Check/Money Order No.: 4420 Company Name on checking account: Brock Environmental Services IEPAY: Voucher No.: Is the Payment Voucher copy attached? ❑Yes A. OPERATOR (applicant) 1. If the applicant is currently a customer with TCEQ, what is the Customer Number (CN) issued to this entity? CN (Search Central Registry) 2. What is the Legal Name of the entity (applicant) applying for this permit? The Fain Group, Inc. (The legal name must be spelled exactly as filed with the Texas Secretary of State, County, or in the legal document forming the entity.) 3. What is the name and title of the person signing the application? (The person must be an official meeting signatory requirements in TAC 305.43(a).) Name: Larry Frazier 7 Job Title: President 4. What is the Operator's (applicant) mailing address as recognized by the US Postal Service? (verify at USPS.com) Address: P.O. BOX 7550 Suite No./Bldg. No. /Mail Code: City: Fort Worth Stat:e:TexaS ZIP Code: 76101 Country Mailing Information (if outside USA). Country Code: Postal Code: 5. Phone No.: (817 ) 927_4388 Extension: 6. Fax No.: (817) 927 -4389 E -mail Address: bmcelain @thefaineompany.eom 7. Indicate the type of Customer: ❑Individual [Sole Proprietorship- D.B.A. El Limited Partnership 0 Corporation ❑Federal Government ❑General Partnership State Government [County Government QCity Government Other Government [:] Other (describe): . .....I,- k I Page 1 o. inuepenuent operator: UYes []No (If governmental entity, subsidiary, or part of a larger corporation, check "No ".) 9. Number of Employees: ❑� 0 -20; 17121 -100; 0101 -250; [:]251-500; or 171501 or higher 0. Customer Business Tax and Filing Numbers (This item is not applicable to Individuals, Government, GP or Sole Proprietor.) REQUIRED for Corporations and Limited Partnerships ( Verity the entity's status and filing no. with TX SOS at 512/463 -5555 ) State Franchise Tax ID Number: 20 -1 658443 Federal Tax ID: TX SOS Charter (filing) Number: 800392913 DUNS Number (if known): B. APPLICATION CONTACT If TCEQ needs additional information regarding this application, who should be contacted? 1. Name: Brain McClain Title: Superintendent I company' The Fain Group, Inc. 2. Phone No.: ( 817 ) 927.4388 Extension: 3. Fax No.: 817 927.4389 E -mail Address: bmcclain@thefaincompany.com C. REGULATED ENTITY (RE) INFORMATTION ON PROJECT OR SITE 1. TCEQ Issued RE Reference Number (RN): RN (Search Central Registry) 2. Name of Project or Site (the name as known by the community where this facility/project is located): Rolling Oaks Memorial Center (example: phase and name of subdivision or name of project that's unique to the site) 3. Does the site have a physical address? If Yes, complete Section, for a physical address. If No, complete Secdon B for site location information. Section A Enter the physical address for the site. (verify it with USPS.com or other delivery source) Street Number: 400 1 Street Name: South Freeport Parkway city: Coppell ZIP Code: 75109 Section ',B: Enter the site location information. If no physical address (Street Number & Street Name), provide a written location access description to the site: (Ex.: phase 1 of Woodland subdivision located 2 miles west from intersection of Hwy 290 & IH35 accessible on Hwy 290 South) City where the site is located or nearest city to site: ZIP Code where site is located: 4. Identify the county where the site is located: Dallas 5. Latitude: 32 57' 51.6" Longitude: 97 0' 47.4" 6. What is the primary business of this entity? In your own words, briefly describe the primary business of the Regulated Entity: (Do not repeat the SIC and NAICS code) Construction of a New Memorial Cemetery Center 7. What is the mailing address for the regulated entity? Is the RE mailing address the same as the Operator? + Yes, address is the same as Operator No, provide the address Street Number: Street Name: City: Stare: ZIP Code: D. GENERAL CHARACTERISTICS ; 1. Is the site located on Indian Country Lands? F_/1No QYes — If Yes, do not submit this NOI. Contact EPA, Region VI If the site is on Indian country lands, you must obtain authorization through EPA, Region VI. 2. What is the Standard Industrial Classification (SIC) code (see instructions for common codes): (Search Odra. =ov Primary: 1629 Secondary: TCEQ -20022 (03/05/2008) Page 2 3(a) What is the total number of acres disturbed? 15.5 3(b) Is the project site part of a larger common plan of development or sale? QYes =No Yes, the total number of acres disturbed can be less than 5 acres. If No, the total number of acres disturbed must be 5 or more. If the total number of acres disturbed is less than 5 then the project site does not qualify for coverage through this Notice of Intent. Coverage will be denied. See the requirements in the general permit for small construction sites. 4. Discharge Information (all information MUST be provide or the permit will be denied) 4(a) What is the name of the water body(s) to receive the storm water runoff or potential runoff from the site? Cottonwood Branch 4(b) What is the segment number(s) of the classified water body(s) that the discharge or discharge potential will eventually reach? 0825 4(c) Are any of the surface water bodies receiving discharges from the construction site on the latest EPA - approved CWA 303(d) list of impaired waters? Yes El No If Yes, provide the name of the impaired water body(s). 4(d) Is the discharge into an MS4? QYes F If Yes, what is the name of the MS4 Operator? City Of CODpell Note: The general permit requires you to send a copy of the NOI to the MS4 Operator. 4(e) Is the discharge or potential discharge within the Recharge Zone, Contributing Zone, or Contributing Zone within the Transition Zone of the Edwards Aquifer? Q Yes Q No If the answer is Yes, please note that a copy of the agency approved Plan required by the Edwards Aquifer Rule (30 TAC Chapter 213) must e included or referenced in the Storm Water Pollution Prevention Plan. E. CERTIFICATION Check "Yes" to the certifications below. :Failure to certify to all items will result, in denial. 0 Yes I certify that I have obtained a copy and understand the terms and conditions of the eneral ep rmit (TXR1500001. 27 Yes I certify that the full legal name of the entity (Operator) applying for this permit has been provided and is legally authorized to do business in Texas. ❑Yes I understand that a Notice of Termination (NOT) must be submitted when this authorization is no longer needed. 0 ✓ Yes I certify that a storm water pollution prevention plan has been developed and implemented prior to construction, and that is compliant with any applicable local sediment and erosion control plans and prepared and implemented as required in the general permit TXR150000. Operator Certification: 1, Typed or printed name (Required R must be legible) Title (Required d: legible) certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware there are signii3cant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. I further certify that I am authorized under 30 Texas Administrative Code 4305.44 to sign and submit this document, and can provide documentation in proof of such aut i tion n request. Signature: .. Date: .r l3 �08 Use blue ink) I l,r_y -LUU26 (w /UJ /LUU?sy Page 3 Texas Commission on Environmental Quality General Permit Payment Submittal Form S325 for a paper Construction NGi Application Fee Use this form to submit your Application Fee only if you are mailing _your payment. -Complete items 1 through 5 below: • Staple your check in the space provided at the bottom of this document. *Do not mail this form with your NOI form. *Do not mail this form to the same address as your NOI. Mail this form and vour check to: BY REGULAR U.S. MAIL BY OVERNIGHT /EXPRESS MAIL Texas Commission on Environmental Quality Texas Commission on Environmental Quality Financial Administration Division Financial Administration Division Cashier's Office, MC -214 Cashier's Office, MC -214 P.O. Box 13088 12100 Park 35 Circle Austin, TX 78711 -3088 Austin, TX 78753 Fee Code: GPA General Permit: TXR150000 1. Check / Money Order No: 4420 2. Amount of Check/Monev Order: $325.00 3. Date of Check or Money Order: 4/28/2008 4. Name on Check or Money Order: Brock Environmental Services 5. NOI INFORMATION If the check is for more than one NOI, list each ProjecdSite (RE) Name and Physical Address exactly as provided on the NOI. DO NOT SUBMIT A COPY OF THE NOI WITH THIS FORM AS IT COULD CAUSE DUPLICATE PERMIT ENTRIES. See Attached List of Sites (If more space is needed, you map attach a list.) Project/Site (RE) Name: Rolling Oaks Memorial Center Project/Site (RE) Physical Address: 400 South Freeport Parkway, Coppell, Texas 75109 Brock Environmental Services oz /os WASHINGTON MUTUAL BANK, FA 88- 9377/1119 422 E. interstate 30 Suite F Royse City, TX 75189 972 - 636 -7717 PAY TO THE Texas Commision On Environmental Quality ORDER OF 4420 4/28/2008 $ * *325.00 Three Hundred Twenty -Five and 00/ 100*****#***********#************#**#*****************# # * # * * * * * * * * * * * * * * * * * # * * * * * * * * ** DOLLARS 8' Texas Commision On Environmental Quality s - Financial Administration Division Cashiers Office MC -214 P.O. Box 13088 Austin, Texas 78711 -3088 The Fain Group - Rolling Oaks Memorial Center 1100044 20r I :L119937 ?61: 3S7467722- Appendix E Endangered Species and Historical Places This Appendix contains information on any Endangered Species or Historical Places that may be adversely impacted by the construction project. Both the Owner (Secondary Operator) and Contractor (Primary Operator) must sign the certification statement prepared for this project. Endangered Species and Historical Places Certification Impact on The list of possible threatened and endangered species is attached. A review Endangered Species of the site found no evidence that this project will have an adverse impact on any listed threatened or endangered plant or animal species. Impact on The list of sites registered with the National Register of Historic Places is Historical Places attached. A review of the site found no evidence that this project will have an adverse impact on any historic site listed on the National Register of Historic Sites. & . Signature: ' G2 Certifying SWPPP for: Printed Name: Ronnie D. Brock, 'Vice President Rolling Oaks Memorial Center Company Name: Brock Environmental Services 400 South Freeport Parkway Date: V-- -- (D S- Coppell, Texas 75109 V certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible forgathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. l am aware there are specific penalties for submitting false information, including the possibilities of fine and imprisonment for knowing violations. " Secondary Operator/ Owner Certification Secondary Operator: CITY of COPPELL By: Title: ,z Date. C Pri d Name. Primary Operator/ Contractor Certification Prima perator: THE FAIN GROUP, INC. By: ` Title: Date: Z -13-Cis Printed Name: �av AA c ALA, Southwest Region Ecological Services Page 1 of 1 Bac tca Star-t List of species by county for Texas: Counties Selected: Dallas Select one or more counties from the following list to view a county list: Anderson Andrews Angelina Aransas Archer View County List Dallas County c;can..rn�ota '�a,ne �iczewatim� ��_►�� )eCies - Listiarg Specks ecies Critical More Group Statu.s Image Distribution Map Habitat Info eagle Haliaeetus Birds DM - R leucocephalus black- capped Vireo Vireo atricapilla Birds E f,�!-Tq Q golden- cheeked Dendroica Birds E t,� r-, 1 warbler ( =wood) chrysoparia -, least tern Sterna antillaruin Birds E -�— W E' �f piping Plover Charadrius Birds E, T'1 I melodus whooping crane Grus americana Birds E, EXPN !` ? -rr • [ http: / /www.fws.gov/ southwest /es /En(langeredSpecies /lists /ListSpecies.cfm 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 1 of 16 TEXAS - Dallas County Alcalde Street -- Crockett School Historic District (added 1995 - District - #95000330) 200 - -500 Alcalde, 421 -421A N. Carroll and 4315 Victor, Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Bulger, C.W. Architectural Style: Bungalow /Craftsman, Queen Anne, Colonial Revival Area of Significance: Architecture Period of Significance: 1900 -1924, 1925 -1949 Owner: Private, Local Gov't Historic Function: Domestic, Education Historic Sub - function: School, Single Dwelling Current Function: Domestic, Education Current Sub - function: School, Single Dwelling Angle, D. M., House (added 1985 - Building - #85000710) 800 Beltline, Cedar Hill Historic Significance: Architecture/Engineering Architect, builder, or engineer: Unknown Architectural Style: Late Victorian Area of Significance: Architecture Period of Significance: 1875 -1899 Owner: Private Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function: Domestic Current Sub - function: Single Dwelling Belo, Alfred Horatio, House (,added 1975 - Building - #75001965) 2115 Ross Ave., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Unknown Architectural Style: Other, Classical Revival Area of Significance: Architecture, Communications http:// www. nationalregisterofhistoricplaces .com /tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 2 of 16 Period of Significance: 1875 -1899 Owner: Private Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function: Vacant/Not In Use Bianchi, Didaco and Ida, House (added 1995 - Building - #95000311) Also known as Phase IV- -East Dallas DAUDA 599 4503 Reiger Ave., Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Lang & Witchell Architectural Style: Mission; Spanish Revival Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function: Domestic Current Sub - function: Single Dwelling Bryan- -Peak Commercial Historic District (added 1995 - District - #95000327) 4214 --4311 Bryan Ave. and 1325- -1408 N. Peak, Dallas Historic Significance: Architecture/Engineering, Event Area of Significance: Architecture, Commerce Period of Significance: 1900 - 1924, 1925 -1949 Owner: Private Historic Function: Commerce /Trade, Government, Recreation And Culture Historic Sub- function: Business, Department Store, Post Office, Specialty Store, Theater Current Function: Commerce. /Trade, Government, Vacant/Not In Use Current Sub - function: Business, Correctional Facility, Specialty Store Bryant, William, Jr., House (added 1985 - Building - #85000711) S. Broad and Cooper, Cedar Hill Historic Significance: Person, Architecture/Engineering Architect, builder, or engineer: Unknown Architectural Style: Late Victorian Historic Person: Bryant,William,Jr. Significant Year: 1889 Area of Significance: Architecture, Commerce Period of Significance: 1875 -1899 Owner: Private Historic Function: Domestic Historic Sub - function: Single Dwelling http:// www. nationalregisterofhistoricplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 3 of 16 Current Function: Domestic Current Sub - function: Single Dwelling R171 Busch Building (added 1980 - Building - #80004489) Also known as Kirby Building 1501- -1509 Main St., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Lang & Witchell, Barnett,Hayes & Barnett Architectural Style: Skyscraper, Late Gothic Revival Area of Significance: Architecture, Commerce Period of Significance: 1900 -1924 Owner: Private Historic Function: Commerce /Trade Historic Sub - function: Department Store Current Function: Commerce /Trade Busch - -Kirby Building (Boundary Increase) (added 1996 - Building - #96001015) Also known as Kirby Building ;A. Harris and Co.;See Also:Busch Building 1501- -1509 Main St.. Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Lang & Witchell Architectural Style: Late Gothic Revival, Art Deco Area of Significance: Commerce, Architecture Period of Significance: 1900 -1924, 1925 -1949 Owner: Private Historic Function: Commerce. /Trade Historic Sub- function: Business, Department Store Current Function: Vacant/Not In Use Cedar Springs Place * * (added 1991 - District - #91001901) 2531 Lucas Dr., Dallas Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: Centennial Architects, Sharp,Walter Architectural Style: International Style Area of Significance: Architecture, Social History, Community Planning And Development Period of Significance: 1925 -1949 Owner: Local Gov't Historic Function: Domestic Historic Sub - function: Institutional Housing Current Function: Domestic Current Sub - function: Institutional Housing Central Congregational Church (added 1995 - Building - #95000307) Also known as Phase IV - -East Dallas DAUDA 96 http:// www. nationalregisterofhistoricplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County 1530 N. Carroll, Dallas Historic Significance: Architecture /Engineering Architectural Style: Late Gothic Revival Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Religion Historic Sub - function: Religious Structure Current Function: Religion Current Sub - function: Religious Structure rt>1 Chevrolet Motor Company Building (added 200' ) - Building - #03000277) 3221 Commerce, Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Lang and Witchell, Hughes - O'Rourke Construction Co. Architectural Style: Early Commercial Area of Significance: Architecture, Industry Period of Significance: 1900 -1924, 1925 -1949, 1950 -1974 Owner: Private Historic Function: Government, Industry /Processing /Extraction Historic Sub - function: Government Office, Manufacturing Facility Current Function: Domestic Current Sub - function: Multiple Dwelling Claremont Apartments i added 1995 - Building - #95000313) Also known as Phase IV - -East Dallas DAUDA 186 4636 Ross Ave., Dallas Historic Significance: Architecture /Engineering Architectural Style: Mission /Spanish Revival Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Domestic Historic Sub - function: Multiple Dwelling Current Function: Domestic Current Sub - function: Multiple Dwelling Clements Hall * * (added 1980 - Building - #80004087) 3200 Dyer St., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Shepley,Rutan & Coolidge Architectural Style: Other, Colonial Revival Area of Significance: Architecture, Education, Community Planning And Development Period of Significance: 1900 -1924 Owner: Private http:/ /www.nationalregisterofhistoric places.com/tx/Dallas /state.html Page 4 of 16 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 5 of 16 Historic Function: Education Historic Sub - function: College Current Function: Education Current Sub - function: College Colonial Hill Historic District (added 1995 - District - #95000334) Bounded by Pennsylvania Ave., I -45, US 75 and Hatcher, Dallas Historic Significance: Event, Architecture/Engineering Architectural Style: Classical Revival, Bungalow /Craftsman Area of Significance: Community Planning And Development, Architecture Period of Significance: 1900 -1924, 1925 -1949 Owner: Private Historic Function: Commerce /Trade, Domestic Historic Sub - function: Business, Single Dwelling Current Function: Commerce /Trade, Domestic Current Sub - function: Business, Single Dwelling FLPI Continental Gin Company (added 1983 - Building - #83003134) 3301 -3333 Elm St., 212 and 232 Trunk Ave., Dallas Historic Significance: Architecture/Engineering Architect, builder, or engineer: Buchannon and Guessler, Stevenson,D.L. Architectural Style: Early Commercial Area of Significance: Invention, Architecture, Industry, Commerce Period of Significance: 1875 -1899, 1900 -1924 Owner: Private Historic Function: Commerce, /Trade, Industry/Processing/Extraction Historic Sub - function: Manufacturing Facility, Warehouse Current Function: Commerce /Trade, Industry/Processing/Extraction Current Sub - function: Manufacturing Facility, Warehouse Dallas County Courthouse * * (added 1976 - Building - #76002019) Houston and Commerce Sts., Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Orlopp & Kusener Architectural Style: Romanesque Area of Significance: Architecture Period of Significance: 1875 -1899 Owner: Local Gov't Historic Function: Government Historic Sub- function: Courthouse Current Function: Government Dallas Downtown Historic District (added 2004 - District - http:// www. nationalregisterofhistoricplaces .com /tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 6 of 16 #04000894) Roughly bounded by Federal, N. St. Paul, Pacific, Harwood, S. Pearl, Commerce, S Ervay, Ak:ard, Commerce and Field, Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: et.al., Ahlschlager, Walter Architectural Style: Late Victorian, Late 19th And 20th Century Revivals Area of Significance: Community Planning And Development, Architecture, Commerce Period of Significance: 1875 -1899, 1900 -1924, 1925 -1949, 1950-1974 Owner: Private. Local Gov't Historic Function: Commerce /Trade, Government, Landscape, Recreation And Culture Historic Sub - function: Business, City Hall, Financial Institution, Park, Plaza, Post Office, Theater Current Function: Commerce /Trade, Government, Landscape, Recreation And Culture, Religion, Vacant/Not In Use, Work In Progress Current Sub- function: Business, City Hall, Financial Institution, Park, Plaza, Religious Structure, Theater Dallas Fire Station No. 16 (added 1997 - Building - #97000363) 5501 Columbia Ave., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Johnson,G.G., Overbeck,H.A. Architectural Style: Prairie School, Mission/Spanish Revival Area of Significance: Architecture, Community Planning And Development Period of Significance: 1900 -1924, 1925 -1949 Owner: Private Historic Function: Government Historic Sub - function: Fire Station Current Function: Recreation And Culture Current Sub - function: Museum Dallas Hall (added 1978 - Building - 478002913) Southern Methodist University campus, Dallas Historic Significance: Event, Architecture/Engineering Architect, builder, or engineer: Shepley,Rutan & Coolidge Architectural Style: Other, Colonial Revival Area of Significance: Architecture, Education Period of Significance.: 1900 -1.924 Owner: Private Historic Function: Education Historic Sub - function: College Current Function: Education Current Sub - function: College Dallas High School Historic District (added 1996 - District - http:// www. nationalregisterofhistoricplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 7 of 16 #96000035) Also known as Dallas Technical High School;Norman Robert Crozier Technical 221.8 Bryan St., Dallas Historic Significance: Event Area of Significance: Education Period of Significance: 1900 -1924, 1925 -1949, 1950 -1974 Owner.: Local Gov't Historic Function: Education Historic Sub - function: School Current Function: Vacant /Not In Use Ft>1 Dallas National Bank (added 2005 - Building - #05000419) 1530 Main and 1511 Commerce St.. Dallas Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: Coburn, Smith & Evans, Hexter & Chambers Architectural Style: Gothic Revival, Skyscraper Area of Significances. Economics, Architecture Period of Significance: 1925 -1949, 1950 -1974 Owner: Private, Historic Function: Commerce. /Trade Historic Sub - function: Business Current Function: Work In Progress Dallas Scottish Rite Temple ( added 1980 - Building - #80004088) Harwood and Young Sts., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Hubble,B.H., Greene,H.M. Architectural Style: Beaux Arts Area of Significance: Architecture, Social History Period of Significance: 1900 -1924 Owner: Private Historic Function: Social Historic Sub - function: Clubhouse Current Function: Social Current Sub - functions. Clubhouse Dallas Tent and Awning Building (added 1999 - Building - #99001292) Also known as Murray Building 3401 Commerce St., Dallas Historic Significance: Event, Architecture/Engineering Architect, builder, or engineer: Jordon, J.M. Architectural Style: Early Commercial Area of Significance: Architecture, Industry Period of Significance: 1900 -1924, 1925 -1949 Owner: Private http:// www. nationalregisterofhistoricplaces .com /tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 8 of 16 Historic Function: Industry /Processing /Extraction Historic Sub- function: Manufacturing Facility Current Function: Domestic Current Sub - function: Multiple Dwelling Dallas Union Terminal * * (added 1975 - Building - #75001966) 400 S. Houston St., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Hunt,Jarvis Architectural Style: Beaux Arts Area of Significance: Architecture, Transportation Period of Significance: 1900 -1924 Owner: Local Gov't Historic Function: Transportation Historic Sub - function: Rail- Related Current Function: Transportation Current Sub- function: Rail - Related $PI DeGolyer Estate * * (added 1978 - Building - #78002914) Also known as Everette DeGolyer House (Rancho Encinal) 8525 Garland Rd., Dallas Historic Significance: Person, Event, Architecture /Engineering Architect, builder, or engineer: Schutt,Burton, Scott,Denman Architectural Style: Mission /Spanish Revival, Other Historic Person: DeGolyer, Everette Significant Year: 1940, 1938 Area of Significance: Architecture, Science, Landscape Architecture Period of Significance: 1925 -1949 Owner: Local Gov't Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function: Landscape Current Sub - function: Park Dealey Plaza Historic District * * * (added 1993 - District - #93001607) Roughly bounded by Pacific Ave., Market St., Jackson St. and right of way of Dallas Right of Way Management Company, Dallas Historic Significance: Person, Event, Architecture/Engineering Architect, builder, or engineer: Multiple Architectural Style: Romanesque, Early Commercial, Chicago Historic Person: Kennedy,John F.,et al. Significant Year: 1963 Area of Significance: Politics /Government, Landscape Architecture, Architecture http:// www. nationalregisterofhistoricplaces .com/tx /Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 9 of 16 Period of Significance: 1875 -1899, 1900 -1924, 1925 -1949, 1950 -1974 Owner: Historic Function: Domestic, Government, Landscape Historic Sub - function: Government Office, Plaza, Single Dwelling Current Function: Domestic, Government, Landscape Current Sub - function: Government Office, Plaza, Single Dwelling Dixon- -Moore House (added 1995 - Building - #95000320) Also known as Phase IV- -East Dallas DAL/DA 96 (South) 2716 Peabody, Dallas Historic Significance: Architecture /Engineering Architectural Style: Other Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function: Domestic Current Sub - function: Single Dwelling Ellis, James H. and Molly, House (added 1995 - Building - #95000323) Also known as Phase IV- -East Dallas DAL/DA 1302 2426 Pine, Dallas Historic Significance: Architecture /Engineering Architectural Style: Other Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Domestic Historic Sub - function: Secondary Structure, Single Dwelling Current Function: Domestic Current Sub - function: Secondary Structure, Single Dwelling F6_ Emanuel Lutheran Church (added 1995 - Building - #95000315) Also known as Phase IV - -East Dallas DAL/DA 194 4301 San Jacinto, Dallas Historic Significance: Architecture /Engineering Architectural Style: Late Gothic Revival Area of Significance: Architecture Period of Significance: 1925 -1949 Owner: Private Historic Function: Religion Historic Sub - function: Religious Structure Current Function: Religion Current Sub - function: Religious Structure http:// www. nationalregisterofhistoric,places .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 10 of 16 Fannin, James W., Elementary School (added 1995 - Building - #95000314) Also known as Phase IV - -East Dallas DAL/DA 1.85 4800 Ross Ave., Dallas Historic Significance: Architecture/Engineering Architect, builder, or engineer: Lang & Witchell Architectural Style: Late Gothic Revival Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Education Historic Sub- function: School Current Function: Education Current Sub- function: School Florence, Fred, Hall * * (added 1980 - Building - #80004089) 3330 University Blvd., Dallas Historic Significance: Event, Architecture/Engineering Architect, builder, or engineer: DeWitt & Lemmon Architectural Style: Other, Colonial Revival Area of Significance: Architecture, Education, Community Planning And Development Period of Significance: 1900 -1924 Owner: Private Historic Function: Education Historic Sub - function: College Current Function: Education Current Sub - function: College Forest Avenue High School, Old (added 1995 - Building - #95000318) Also known as Madison,James,High School;Phase IV - -East Dallas DAL/DA 49 3000 Martin Luther King, Jr., Blvd., Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Ittner, W.P. Architectural Style: Renaissance Area of Significance: Architecture Period of Significance: 1900 -1924 Owner: Private Historic Function: Education Historic Sub - function: School Current Function: Education Current Sub- function: School G & J Manufacturing (added 2002 - Building - #02000992) 3912 Willow St., Dallas Historic Significance: Event Area of Significance: Industry, Education http:// www. nationalregisterofhistoricplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 11 of 16 Period of Significance: 1925 -1949, 1950 -1974 Owner: Private Historic Function: Industry /Processing/Extraction Historic Sub - function: Manufacturing Facility Current Function,: Commerce /Trade Current Sub - function: Business Gilbert, Samuel and Julia, House (added 1988 - Building - 488002063) Also known as The Gilbert Homestead;The Old Rock House 2540 Farmers Branch Ln., Farmers Branch Historic Significance: Information Potential, Architecture /Engineering Architect, builder, or engineer: Unknown Architectural Style: Greek Revival, Other Area of Significance: Architecture, Historic - Non - Aboriginal Cultural Affiliation: Anglo- American Period of Significance: 1850 -1874, 1875 -1899, 1900 -1924, 1925 -1949 Owner: Local Gov't Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function. Landscape, Recreation And Culture Current Sub - function: Museum, Park Goodyear Tire and Rubber Company Building and B.F. Goodrich Building (added 2002 - Building - #02000009) Also known as Howard R. Wolf Building 2809 Parry Ave. and 4136 -40 Commerce St., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: F.J. Woerner & Company Architectural Style: Chicago Area of Significance: Industry, Architecture Period of Significance: 1925 -1949, 1950 -1974 Owner: Private Historic Function: Agriculture /Subsistence, Commerce /Trade Historic Sub - function: Business, Warehouse Current Function: Commerce /Trade, Domestic Current Sub - function: Multiple Dwelling, Professional Grace Methodist Episcopal Church (added 1982 - Building - 982001736) Also known as Grace United Methodist Church 4105 Junius St., Dallas Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: Caan,W. A. Architectural Style: Gothic Revival Area of Significance: Religion, Architecture Period of Significance: 1900 -1924, 1925 -1949 http:// www. nationalregisterofhistoricplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 12 of 16 Owner: Private Historic Function:. Religion Historic Sub- function:: Religious Structure Current Function: Religion Current Sub - function: Religious Structure Greer, George C., House (added 1997 - Building - #96001563) Also known as Greer - Saner- McCutcheon House;See also:Swiss Avenue Historic 5439 Swiss Ave., Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Thompson, Hal B. Architectural Style: Colonial Revival Area of Significance: Architecture Period of Significance: 1900 - 1924, 1925 -1949 Owner: Private Historic Function: Domestic Historic Sub - function: Secondary Structure, Single Dwelling Current Function: Domestic Current Sub - function: Secondary Structure, Single Dwelling Harlan Building (added 2004 - Building - 404000102) 2018 Cadiz St., Dallas Historic Significance: Event Area of Significance: Commerce Period of Significance: 1900 -1924, 1925 -1949 Owner: Private Historic Function: Commerce /Trade Historic Sub - function: Warehouse Current Function: Work In Progress $P1 Hawkes, Z. T. (Tip), House (added 1985 - Building - #85000712) 132 N. Potter St., Cedar Hill Historic Significance: Architecture /Engineering Architect, builder, or engineer: Unknown Architectural Style: Other Area of Significance: Architecture Period of Significance: 1875 -1899 Owner: Private Historic Function: Domestic Historic Sub - function: Secondary Structure, Single Dwelling Current Function: Domestic Current Sub - function: Secondary Structure, Single Dwelling Highland Park Shopping Village * * * (added 1997 - Building - #97001393) Also known as Highland Park Village Jct. of Preston Rd. and Mockingbird Ln., Highpark http:// www. nationalregisterofhistoric ,places.com /tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 13 of 16 Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: multiple Architectural Style: Colonial Revival, Mission /Spanish Revival Area of Significance: Commerce, Community Planning And Development, Architecture Period of Significance:. 1925 -1949, 1950 -1974 Owner: Private Historic Function: Commerce /Trade Historic Sub - function: Department Store, Specialty Store Current Function: Commerce /Trade Current Sub - function: Department Store, Specialty Store Fc;- Hilton Hotel (added 1985 - Building - #85003092) Also known as Plaza Hotel 1933 Main St., Dallas Historic Significance:: Event, Architecture /Engineering Architect, builder, or engineer: McKenzie Const., Lang & Witchell Architectural Style: Beaux Arts Area of Significance: Architecture, Commerce Period of Significance: 1925 -1949 Owner: Private Historic Function: Domestic Historic Sub- function: Hotel Current Function: Domestic Current Sub- function: Hotel Hotel Adolphus * * (added 1983 - Building - 483003133) Also known as Adolphus Hotel 1315 Commerce St., Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Bamett,Tom P., Barnett,Haynes and Barnett Architectural Style: Beaux Arts Area of Significance: Architecture, Social History Period of Significance: 1900 -1924 Owner: Private Historic Function: Commerce /Trade, .Domestic Historic Sub - function: Hotel, Specialty Store Current Function: Commerce /Trade Houston Street Viaduct (added 1984 - Structure - #84001641) Also known as Dallas -Oak Cliff Viaduct Houston St. roughly between Arlington St. and Lancaster Ave., Dallas Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: Hedrick & Cochrane, ColTigan,Lee,& Halpin Area of Significance: Engineering, Transportation Period of Significance: 1900 -1924 http:// www. nationalregisterofhistoricplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 14 of 16 Owner: Local Gov't Historic Function: Transportation Historic Sub - function: Road- Related Current Function: Transportation Current Sub- function: Road - Related Hyer Hall * * (added 1980 - Building - #80004090) 6424 Hill Lane, Dallas Historic Significance: Event, Architecture /Engineering Architect, builder, or engineer: Hil1,C.D., & Co. Architectural Style: Other, Colonial Revival Area of Significance: Architecture, Education Period of Significance: 1925 -1949 Owner: Private Historic Function: Education Historic Sub - function.: College Current Function: Education Current Sub - function: College Interstate Forwarding Company Warehouse (added 1992 - Building - #92000021) 3200 Main St., Dallas Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: Unknown Architectural Style: Chicago, Other Area of Significance: Architecture, Commerce, Transportation Period of Significance: 1900 -1924, 1925 -1949 Owner: Private Historic Function: Commerce /Trade, Transportation Historic Sub - function: Rail - Related, Warehouse Current Function: Commerce /Trade, Domestic, Recreation And Culture Current Sub- function: Business, Multiple Dwelling, Professional. Theater Kessler Park Historic District (added 1994 - District - #94000607) Roughly bounded by Kidd Springs, Stewart, Oak Cliff, Plymouth, I -30, Turner, Colorado and Sylvan, Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Unknown Architectural Style: Tudor Revival, Bungalow /Craftsman, Mission /Spanish Revival Area of Significance: Architecture Period of Significance: 19004924, 1925 -1949 Owner: Private Historic Function: Domestic, Landscape Historic Sub - function: Park, Single Dwelling Current Function: Domestic, Landscape Current Sub - function: Park, Single Dwelling http:// www. nationalregisterofliistori cplaces.com /tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 15 of 16 Kessler Park Historic District (Boundary Increase) (added 1995 - District - #95001087) Bounded by Turner, Colorado, Sylvan and Salmon, Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Unknown Architectural Style: Tudor Revival, Mission /Spanish Revival, Bungalow /Craftsman Area of Significance: Architecture Period of Significance: 1925 -1949 Owner: Private Historic Function: Domestic Historic Sub - function: Single Dwelling Current Function: Domestic Current Sub - function: Single Dwelling King's Highway Historic District (added 1994 - District - #94000606) 900- -1500 Blocks of King's Highway between W. Davis St. and Montclair Ave., Dallas Historic Significance: Architecture /Engineering Architect, builder, or engineer: Unknown Architectural Style: Other, Bungalow /Craftsman Area of Significance: Architecture Period of Significance: 1900 -1924, 1925 -1949 Owner: Private Historic Function: Commerce /Trade, Domestic Historic Sub - function.: Multiple Dwelling, Single Dwelling, Specialty Store Current Function: Commerce /Trade, Domestic Current Sub - function: Multiple Dwelling, Single Dwelling, Specialty Store Lake Cliff Historic District (added 1994 - District - #94000609) Roughly bounded by E. 6th St., Beckley Ave., Zangs Blvd. and Marsalis Ave., Dallas Historic Significance: Architecture /Engineering, Event Architect, builder, or engineer: Williams, Robert C., Hecht, Albert S. Architectural Style: Late 19th And 20th Century Revivals, Late 19th And Early 20th Century American Movements, Other Area of Significance: Community Planning And Development, Architecture Period of Significance: 1875 - 1899, 1900 -1924, 1925 -1949 Owner: Private Historic Function: Domestic, Landscape Historic Sub- function: Multiple Dwelling, Park, Single Dwelling Current Function: Domestic, Landscape Current Sub - function: Multiple Dwelling, Park, Single Dwelling http:// www. nationalregisterofhistorieplaces .com/tx/Dallas /state.html 4/28/2008 National Register of Historical Places - TEXAS (TX), Dallas County Page 16 of 16 Lancaster Avenue Commercial Historic District (added 1994 - District - #94000605) Roughly bounded by E. Jefferson Blvd., S. Marsalis, E. 10th St., E. 9th St. and N. Lancaster Ave., Dallas Historic Significance: Architecture/Engineering Architect, builder, or engineer: Unknown Architectural Style: Other Area of Significance: Architecture Period of Significance: 1900-1924, 1925-1949 Owner: Private Historic Function: Commerce/Trade Historic Sub-function: Specialty Store Current Function: Commerce/Trade Current Sub-function: Specialty Store Page I > ?.> 3 Return to Ton Select a Different TEXAS County (map) Anderson Andre�_sA ea Aransas A Ag ...lin saycher ........ .......... __ Anns . . . ......... su- Bee Bell Bexar Blanco Bosque Bowie Brazoria Brazos tron- Atascosa Austin Bandera Bas -op Brewster Briscoe Brown Burleson Burnet Caldwell Calhoun Callahan Cameron Carson Cass Chambers Briscoe .. ................. Burnet .............. ... .. . Ca -- (dwell . ... . ........... Calhoun Callahan. _ _ ... . Cameron . . ... Carson. .. . _ ... . .......... . ... 'w . .... . ...... ......... ................ . . . Cooke . ............. . � ......... Cottle - - Crockett ....... Chembee Clav Coke Collin C I in orth Colorado Corral- Concho Cooke Corvell Crockett Crosby Culberson Dallarn Dallas Dawson De Witt Deaf Smith Denton Dickens Dimmit on D ley Eastland Ector Edwards El Paso Ellis Erath Falls Fannin Fayette Fisher Floyd Fort Bend Franklin Freestone Frio Galveston Garza Gillespie Goliad Gonzales Gray Grayson G jrq, ,g Grimes Guadalupe Hale f fall Hamilton I lardeman I lardin Harris Harrison Hartley hays Henderson Hi dale o H ill ......... . . Ilood. Hopkins Houston Howard Hudspeth Hunt Hutchinson Irion Jack Jackson Jasper Jeff.Da-vi.5 . ........... .............. . . . ..... ... ....... . ......... Jefferson Jim Wells Johnson Jones Kames Kaufman Kendall Ken.e.cly Kent Ken- Kimble Kinney . .--- Johnson -, ___ . ... ........ --- -- - .. - .... . ..... --- __ - Kle er� Knox Lamar Lampasas Lavaca Lee Leon Liberty Limestone Live Oak Llano Lubbock Lvnn -b..I.— � ............ Lampasas � . . � � I . .......... Madison Marion Martin Mason Matagorda Maverick McCulloch McLennan McMullen Medina Menard Marion 1-1. 1 - ............... 1 11 T -.49 - Maverick .......... _ - ................... .. .............. � .... ........ ............ . - Midland Milan Mi.) Is. Mitchell Montague Montgomery , Morris M.Qtle} Nacogdoches. Navarro Newton. Nolan Nue.ces .0chiltre.e.0.1dham Oran.2e Palo.. Pinto Pan..o..I..a...P..a-r,ke.r.Pecos Polk ,Potte..r..P..i..-.e"sidi.o..Rams Randall Reag, - Robertson ........... . ........ _ ___ . Sabine . 11) Real Red River Ref Roberts Rockwall Runnels Rusk . ........ River S ........... Jacinto ....... ___ . . . . ............ ...... Schleicher . . .. ........... . . ............. . Smith ....... ,,an Augustine San Jacinto San Patricio San Saba Shackelford Shelby. Smith Somervell Starr Stephens . Tom . . . Green . .. _ . . Travis . .............. _s Sutton Tarrant Taylor Terrell Throckmorton Titus Green Ti avis Trinity Up urUvalde Sutton . . . . ................ ... Val Verde Van Zandt Victoria Walker Walter Washington Webb Wharton Wheeler Wichita Wil ar(er Verde .. ............ . ...... .............. __ .................. .. . . . . . . .. ............. ...... Wharton - . Wheeler Willa y Williamson Wilson Winkler Wise Wood Young Zapata 4,14 Select a Different State (map) Alabarna Alaska Arizona Arkansas California Colorado Connecticut DelawDelaware District Of Columbia Florida Georaia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana are . . .. . ............. Columbia. ............. � -.1 - - _... -1 . . . . . Hawaii . .... ........ ................ ... __ .................. . . . ............... . - _ . . ......... . Maine Marviand Massachusetts Michigan, Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pemisvlvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoniiiigy Return to Flome.Pa�,Ye - ...... .... tome Page ...... Frequently Ask Questions I Register Forms www.nationalregisterofhistoricalplaces.com Property Updates I Add Link I Enhanced Listings Contact Us http://www.nationalregisterofhistori(,,places.com/tx/Dallas/state.html 4/28/2008 Appendix F SWPPP Update Form / Changes in Site Conditions Form / Record of Stabilization Measures / List of Potential Pollutants This Appendix contains your Construction Activity Forms. SWPPP Update Form; This form is to be used when there is a change in design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants that has not been previously addressed in the SWPPP. (Examples would be if there were additions of extra needed Erosion Control Devices or the deletion of unnecessary Erosion Control Devices.) Also note that the form asks you if the Erosion Map was updated, it is necessary to update you Erosion Map when there are changes in design or maintenance to the controls used on site. Record of Stabilization measures; This form is used to log the dates that each area of your project is stabilized. You log the date, describe the Stabilization measures used and log the area of the project that has been stabilized. List of Potential Pollutants This form is used to show construction materials that will be used and activities that will be performed that have potential to contribute pollutants, including sediments, to storm water run off. SW.P.P.P UPDATE FORM DATE: WAS EROSION MAP UPDATED: Y / N REASON FOR UPDATE: "/ cerlifj, under penalty of lair that this document and all attachments were prepared under nny direction or supervision in accordance with a system designated to assure that qualified personal properly gathered and evaluate the information submitted. Based on nny inquity of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of n y knowledge and belief, true, accurate, and complete. 1 am aware there are specific penalties for submitting false information, including the possibilities of fine and imprisonment for knowing violations. " NAME DATE: WAS EROSION MAP UPDATED: Y / N REASON FOR UPDATE: '7 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personal properly gathered and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. Jam aware there are spectf c penalties for subnnittingfalse information, including the possibilities of fine and innprisonnient for knowing violations." NAME DATE REASON FOR UPDATE: TITLE: WAS EROSION MAP UPDATED: Y / N "I certify under penalo, of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designated to assure that qualified personal properly gathered and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief true, accurate, and complete. I am aware there are specific penalties for submitting false information, including the possibilities offine and imprisonment for knowing violations. " NAME TITLE: DATE: WAS EROSION MAP UPDATED: Y / N REASON FOR UPDATE: "I certify under penalh, of law that this document and all attachments were prepared rider my direction or supervision in accordance with a system designated to assure that qualified personal properly gathered and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, o• those persons directly responsible for gathering the information. the information submitted is, to the best of my knowledge and belief true, accurate, and complete. I am aware there are specific penalties for submitting false information, including the possibilities of fine and imprisonnent for knowing violations. NAME CHANGES IN EXISTING SITE CONDITIONS: Date(s) When Changes Occur Describe Changes in Existing Site Conditions (mm- dd -v.v) RECORD OF: STABILIZATIONMEASURES Note: Table is used to log dates when each area of the project is stabilized. Date(s) When Stabilization Urea s of Measures are Describe :Stabilization Measures Area( s) Initiated project mm -dd- ) LIST OF POTENTIAL POLLUTANTS: Description of Potential Pollutant Sources - The SWP3 must provide a description of potential sources (activities and materials) that may reasonably be expected to affect the quality of storm water discharges associated with construction projects authorized under this permit. The SWP3 must describe practices that that will be used to reduce the pollutants in these discharges to assure compliance with this general permit, including the protection of water quality, and must ensure the implementation of these practices. Checked items below are construction materials that will be used and activities that will be performed that will have the potential to contribute pollutants, including sediment, to storm water runoff: CHECK ALL ITEMS BELOW THAT MAY APPLY TO YOUR PROJECT ❑ Vehicle fluids, including oil, grease, petroleum, and coolants ❑ Asphaltic emulsions associated with asphalt- concrete paving operations ❑ Cement materials associated with PCC concrete paving operations, drainage structures, median barriers, and bridge construction ❑ Base and subbase material ❑ Joint and curing compounds ❑ Concrete curing compounds ❑ Paints ❑ Solvents, thinners, acids ❑ Sandblasting materials ❑ Mortar mix ❑ Raw landscaping materials and wastes (topsoil, plant materials, herbicides, fertilizers, mulch, pesticides) ❑ Treated lumber (materials and waste) ❑ PCC rubble ❑ Masonry block rubble ❑ General litter ❑ Clear and grub operations ❑ Grading operations ❑ Soil import operations ❑ Utility excavation operations ❑ Sandblasting operations ❑ Landscaping operations ❑ Other: Brock Environmental Services, LLC. March, 2008 Appendix G Record of Major Grading Activities This Form is to be used to log the dates when any grading activities take place on the project. You log the date and location of the activity as well as describe the grading activity on site. (Example; Started grading parking area 1, Started grading for west bound roadway section, clearing brush to begin grading for new ground storage tank.) RECORD OF: MAJOR GRADING ACTIVITIES Note: Table is used to log dates when an), grading activities take place on the project. Date(s) When Major Grading Activities occur Describe Major Grading Activity and Location (mm- dd -Yy) Appendix H Record Temporary or Permanent Ceased Construction Activities This form is to be used to log the dates when Construction Activity either temporarily or permanently ceases at the site. You log the Project Activity area, the date Activities ceased, whether it is temporary or permanent and the date that Activities resume at the site. RECORD OF: TEMPORARY /PERMANENT CEASING OF CONSTRUCTION Note: Table is used to log dates when construction activiol temporarily or permanently ceases at the site. Project Activity Area Date Activities Temporary Date Activities Ceased or Permanent Resumed Appendix I Project Description Vicinity Map Erosion and Sediment Control Plan with Drainage Characteristics, Details and Specifications This Appendix contains the following; Project description - This is a narrative that basically describes what type of construction activity is involved with the construction project. Vicinity Map -This is an area map showing the location of the project. Erosion and Sediment Control Plan with Drainage Characteristics, Details and specifications -The ECP shows the location of structural controls used to prevent sediment run -off from the project as well as the flow of storm water, details and specifications for the types of controls selected. Project Description This project shall consist of new construction to include both site and building work. Site work shall include grading, water, sewer, storm and electrical utilities, concrete paved roadways, curb and gutter system, landscape /irrigation, concrete and decomposed granite walkways, new entry gates and sign, brick pilasters and decorative fencing. The building construction is a columbarium building with a concrete floor slab, wood frame wall and roof construction, brick and natural stone veneer and a metal roof system. Major Soil disturbing activities included in this project are: installation of erosion controls, mobilization of equipment and staging areas, clearing, grubbing and grading, soil excavation and compaction, installation of underground utilities, placement of paving, construction of columbarium building, final grading, and lastly reseeding all disturbed areas for final stabilization. The Contractor is responsible for: Updating the SWP3 Plan and Erosion Map as the project proceeds to show; contractors staging areas including all equipment and material storage areas, any offsite materials, waste, borrow or equipment storage areas and all areas of final stabilization once each section has been completed. Erosion Control Phasing Phase 1 A. Install erosion controls (as shown on erosion control map) and mobilize staging area. B. Begin clearing and grading site. Phase II A. Keep all erosion control measures in place B. Install underground utilities C. Paving operations D. Building construction Phase III A. Keep all erosion control measures in place B. Final grading and leveling C. Seeding or sodding D. Site clean up and stabilization E. Remove all Equipment and Materials F. 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If you are performing your own Inspections, you will need to fill out the Inspector Qualifications form. Storm Water Pollution Prevention Plan Inspector Qualifications Storm Water P.ollution Prevention `Plan Inspector :Qualifications' Inspectors Name Ronnie Brock Inspector: Brock Environmental Services, LLC. office - 972 - 636 -7717 cell - 214 - 394 -6757 Title Project Inspector Training Received Region 6 NPDES Construction General Permit Compliance, Best Management Practices and Inspection Training February 2000- 2002 By: International Erosion Control Association Storm Water Permitting March, 2004 By: Texas Commission on Environmental Quality, San Antonio TX City of Dallas Storm Water Management Training Sessions - 2004 Training Covered How to Select, Install and Inspect Construction Site BMP's for NPDES Storm Water Permit Compliance How to Write and Implement a Storm Water Pollution Prevention Plan Practical Approaches for Effective Erosion & Sediment Control Simple Tools for NPDES Compliance on Construction Sites City of Dallas, Storm Water Training and Partnering Sessions Construction Experience 19 Years in Construction Industry Positions Held: Project Manager / Safety and Environmental Manager / Safety and Competent Persons Certified Instructor Storm Water Construction Storm Water Construction Inspections since February, 2002 Inspection Experience y\ j� ol Ell FAR It I �111 2 1 bli, �% wit 11. MEN xZ" ru C) is CD CD LL. F- ol Ell FAR It I �111 2 1 bli, �% wit 11. MEN xZ" ru Storm Water Pollution Prevention Plan Inspector Qualifications Storm Water "'Pollution Prevention :Plan Inspector Qualifications Inspectors Name Ray Bailey Inspector: Brock Environmental Services, LLC. office - 972 - 636 -7717 Title Project Inspector Training Received TPDES Construction General Permit Compliance, Best Management Practices and Inspection Training October 24. 2004 By: Brock Environmental Services, LLC Training Covered History of the TPDES Permitting Process TPDE:S Compliance and Regulations, Including Operator Responsibilities Erosion and Sedimentation Processes Selecting and installing proper controls Good Housekeeping and non - structural BMP's, including proper storage techniques Inspection Process, reports, record - keeping, compliance and maintenance of controls Storm Water Construction Inspection Experience Storm Water Project Inspections since October 24, 2004 V Z O O U p V bo Z a bo W W N4 1:3 0 a L) 4-0 row .,.., a N W N.0a_�� 9 ° o ao 0 U ti .� ?�Cn o U N U �o N CC3 � �. N � o0 �A W U O Storm Water Pollution Prevention Plan Inspector Qualifications r Storm Water Pollution Prevention: Plan inspector Qualifications' Inspectors Name Jerod Flueckiger Inspector: Brock Environmental Services, LLC. office - 972 - 636 -7717 Title Project Inspector Training Received TPDES Construction General Permit Compliance, Best Management Practices and Inspection Training March 27. 2004 By: Brock Environmental Services, LLC. Training Covered History of the TPDES Permitting Process TPDES Compliance and Regulations, Including Operator Responsibilities Erosion and Sedimentation Processes Selecting and installing proper controls Good Housekeeping and non - structural BMP's, including proper storage techniques Inspection Process, reports, record - keeping, compliance and maintenance of controls Storm Water Construction Inspection Experience Storrri Water Project Inspections since March 27, 2004 BRocK ENVIRONMENTAL SERvIcEs, LLC. Storm Water Pollution Prevention Certificate jerod Flueckiger Has successfully completed Storm Water Pollution Prevention Training for Construction Activities: Items covered: TPDES Construction General Permit Compliance /Best Management Practices and nspection Training Permitting Process, Compliance and Regulations, Including Operator Responsibilities 'rosion and Sedimentation Processes / Good Housekeeping and non - structural BMP's, Inspection Process - Reports- Record- keeping / Compliance and maintenance of controls Brock Environmental Services, LLC. March 27, 2004 Storm Water Pollution Prevention Plan Inspector Qualifications Storm Water = Pollution Prevention Plan Inspector�Qualifications Inspectors Name Dozier Summers Inspector: Brock Environmental Services, LLC. office - 972 - 636 -7717 Title Project Inspector Training Received TPDES Construction General Permit Compliance, Best Management Practices and Inspection Training January 1, 2007 By: Brock Environmental Services, LLC. Training Covered History of the TPDES Permitting Process TPDE:S Compliance and Regulations, Including Operator Responsibilities Erosion and Sedimentation Processes Selecting and installing proper controls Good Housekeeping and non - structural BMP's, including proper storage techniques Inspection Process, reports, record - keeping, compliance and maintenance of controls Storm Water Construction Inspection Experience Storm Water Project Inspections since January 1, 2007 BRocK ENVIRONMENTAL S ERV /CES, LLC. Storm Water Pollution Prevention Certificate Dozier Summers Has successfully completed Storm Water Pollution Prevention Training for Construction Activities: Items covered: TPDES Construction General Permit Compliance /Best Management Practices and pection Training Permitting Process, Compliance and Regulations, Including Operator Responsibilities )sion and Sedimentation Processes / Good Housekeeping and non - structural BMP's, Inspection Process - Reports- Record- keeping / Compliance and maintenance of controls J Brock Environmental Services, LLC. January 1, 2007 Appendix K Best Management Practices This Appendix contains a copy of the NCTCOG Best Management Practices for Construction Activity. In this Appendix you will find information on how to properly install and maintain the various controls selected for this project. December 2003 s r 4 BEST MANAGEMENT PRACTICES 4.1 Overview In order to address the requirements of pollution reduction at construction sites, a variety of techniques should be employed to reduce soil erosion, reduce site sediment loss, and manage construction - generated waste and construction related toxic materials. This section provides design criteria for a variety of techniques to address these issues. These Best Management Practices (BMPs) consist of both temporary and permanent methods to reduce pollution from a construction site. The majority of BM PS address soil loss from the site. For construction .n the form of erosion and sediment due to storm events and wind constitute the majority of pollution generated from construction sites. BMPs that address erosion and sediment control are typically more site specific than waste and toxics management. Erosion and sediment control BMPs are dependent on site slopes, drainage patterns and drainage quantities along with other site - specific conditions. Materials and waste management consists primarily of "good housekeeping' practices which are dependent on the type of construction and the quantity and type of building materials. 4.2 BMP Selection Guide In preparing the SWPPP, the designer can first use the BMP selection guide on the following pages to determine BMPs applicable to the site. The fact sheets following the selection guide detail the design requirements, maintenance requirements, limitations, and purpose of each of the techniques. These provide the tools for the designer to select the appropriate BMPs and properly locate them on the site, effectively reducing erosion and sediment loss. The Efficiency Ratings listed for the BMPs are the assumed efficiencies in reducing erosion or trapping sediment for the BMP, assuming the BMPs are designed installed and maintained in accordance with the Fact Sheets and based on accommodating the flow and volumes from the design storm. The ratings are useful in comparing the effectiveness of the BMPs. The Efficiency Rating is also used in calculating the Site Rating, which is used by some local governments to ensure adequate SWPPP Design. Appendix E has additional details concerning the BMP Efficiency Ratings and the methodology for calculating the Site Rating. SW Design Manual for construction 4-1 December 2003 4.2.1 Erosion Prevention These BMPs protect the soil to reduce erosion. They are primarily used in perimeter areas around construction sites to either limit flows across the site or limit the erosion in areas disturbed but not active. BMP ID BMP Name Primary Purpose Efficiency Rating (Fe) E -1 Interceptor Swale Route flows around areas of disturbance 1.0 E -2 Diversion Dike Route flows around areas of disturbance 1.0 E -3 Pipe Slope Drain Route overland flow on a slope into a pipe Varies Filter Dike to protect the slope E -4 Vegetation Provide natural soil protection through 0.90 S -4 Inlet Protection seeding, hydromulch or phasing Varies E -5 Mulching Protect disturbed soil with a layer of hay, 0.90 Stone Outlet straw, or other material 0.85 E -6 Erosion Control Protect disturbed soil or slopes with 0.90 Blankets geotextile and biodegradable fabrics E -7 Channel Protection Protects the soil through the use of grass- Varies lining, turf reinforcement mats, or riprap E -8 Dust Control Techniques to limit wind erosion and air- Varies borne soil particles from leaving site 4.2.2 Sediment Loss Prevention Construction activities normally result in disturbance on the site due to grading operations, clearing and other operations. Erosion will occur in these disturbed areas and BMPs must be used to contain the sediment from these disturbed areas. The following techniques reduce soil loss from the site by retaining the soil through sedimentation or filtration of the runoff. BMP ID BMP Name Primary Purpose Efficiency Rating (Fe) S -1 Silt Fence Slow and filter runoff to retain sediment 0.75 S -2 Organic Filter Berm Slow and filter runoff to retain sediment 0.75 S -3 Triangular Sediment Similar to silt fence but more portable, 0.75 Filter Dike reusable and sturdy with high flows Intercept sediment at curb and field S -4 Inlet Protection inlets. Should be used in conjunction Varies with other onsite techniques Stone Outlet Intercept and filter small concentrated 0.85 S -5 Sediment Trap flows such as small creeks and defined waterways The Efficiency Ratings listed for the BMPs are the assumed efficiencies in reducing erosion or trapping sediment for the BMP, assuming the BMPs are designed and installed in accordance with the Fact Sheets and based on accommodating the flow and volumes from the design storm. 4.2 Manual for Construction December 2003 BMP ID BMP Name Primary Purpose Efficiency Rating (Fe) S -6 Sediment Basin Large pond with controlled outflow 0.90 Management which allows sediment to settle out of Effective runoff S -7 Check Dam Provide minor detention and retention 0.50 Management of sediment for small swales and Effective M -3 Concrete Waste concentrated flows Very S -6 Temporary Sediment Provide sedimentation for sediment 0.70 M -4 Tank laden runoff from trenches and Effective Waste Management depressed areas S -9 Stabilized Reduce offsite sediment tracking from N/A Construction trucks and construction equipment Entrance operations S -10 Wheel Wash Reduce offsite sediment tracking from N/A Management trucks and construction equipment 4.2.3 Materials and Waste Management These techniques will be applied on the majority of construction projects due to their general topic of reducing waste from construction activities. They form the basis of general housekeeping procedures that should be followed during construction. BMP ID BMP Name Primary Purpose Efficiency Rating (Fe) M -1 Debris and Trash Techniques for management of paper, Very Management packaging, general building materials, Effective etc. M -2 Chemical Techniques for management of paints, Very Management chemicals, fertilizer, oil and grease, etc. Effective M -3 Concrete Waste Techniques for disposal of concrete Very Management washout, demolished concrete, etc. Effective M -4 Concrete Sawcutting Techniques for disposal of concrete Effective Waste Management cuttings from concrete sawing M -5 Sandblasting Waste Techniques for disposal of sandblasting Effective Management- waste and containment of wastes during operations M -6 Lime Stabilization Control lime runoff from areas being Effective Management stabilized with hydrated or quicklime M -7 Sanitary Facilities Techniques for control of sanitary waste Effective The Efficiency Ratings listed for the BMPs are the assumed efficiencies in reducing erosion or trapping sediment for the BMP, assuming the BMPs are designed and installed in accordance with the Fact Sheets and based on accommodating the flow and volumes from the design storm. ISWM Design Manual for Construction 4-3 December 2003 This page left intentionally blank 4-4 ISWM Design Manual for Gmstructlon December 2003 Interceptor Swale Applications Perimeter Control Design Water Surface Undisturbed Slope Slope Protection Sediment Trapping 1.5' Max Depth *WO _ Nq Disturbed Area m,3 ' Channel Protection Temporary Stabilization Permanent Stabilization sa -sue ' �Stabilit3:tion (for high velocilieS) Waste Management 3:1 Max Slope Cross Section �r Housekeeping Practices Targeted Constituents DESCRIPTION • Sediment An interceptor swale is a small v- shaped, trapezoidal, or parabolic channel that p Nutrients Toxic collects runoff and directs it to a desired location. It can either have a natural Materials grass lining or, depending on slope and design velocity, a protective lining of erosion control matting, crushed stone or concrete. O Oil & Grease PRIMARY USE • Floatable Materials The interceptor swale can either be used to direct sediment -laden flow from G Other Construction disturbed areas into a controlled outlet or to direct 'clean' runoff around Wastes disturbed areas. Since the swale is easy to install during early grading Implementation operations, it can serve as the first line of defense in reducing runoff across disturbed areas. As a method of reducing runoff across the disturbed Requirements construction area, it reduces the requirements of structural measures to capture sediment from runoff since the flow is reduced. By intercepting sediment laden c Capital Costs flow downstream of the disturbed area, runoff can be directed into a sediment c Maintenance basin or other BMP for sedimentation as opposed to long runs of silt fence or other filtration method. C Training Base on site topography, swales can be effectively used in combination with • Suitability for Slopes > diversion dikes. 5 APPLICATIONS Legend Common applications for interceptor swales include roadway projects, site 0 Significant Impact development projects with substantial offsite flow impacting the site and sites with a large area(s) of disturbance. It can be used in conjunction with diversion p Medium Impact dikes to intercept flows. Temporary swales can be used throughout the project to direct flows away from staging, storage and fueling areas along with specific O Low Impact areas of construction. Note that runoff which crosses disturbed areas or is directed into unstabilized swales must be routed into a treatment BMP such as ? Unknown or a sediment basin. Questionable Impact Fe =1.00 Grass lined swales are an effective permanent stabilization technique. The grass effectively fillers both sediment and other pollutants while reducing E -1 velocity. DESIGN CRITERIA ❑ Maximum depth of flow in the swale shall be 1.5 feet based on a 2 -year return period design storm peak flow. Positive overflow must be provided to accommodate larger storms. North Central Texas Council of Governments ISWM Design Manual for Construction December 2003 N Interceptor Swale ❑ The maximum contributing drainage area should be 5 acres or less depending on site conditions. ❑ Channels may be trapezoidal, parabolic, or v- shaped; however v- shaped channels may be difficult to stabilize, so they are generally used only where the volume and rate of flow is low. ❑ Side slopes of the swale shall be 3:1 or flatter. ❑ Minimum design channel freeboard shall be 6 inches. ❑ For grades less than 2 percent and velocities less than 6 feet per second, the minimum required channel stabilization shall be grass, erosion control mats or mulching. For grades in excess of 2 percent or velocities exceeding 6 feet per second, stabilization is required in the form of turf reinforcement mats (or a layer of crushed stone or rip -rap with appropriate size, gradation, and thickness depending on flow conditions). Velocities greater than 8 feet per second will require approval by the local jurisdiction and is discouraged. ❑ Check dams can be used to reduce velocities in steep swales. See BMP S- 7,Check Dam, for design criteria. ❑ Interceptor swales must be designed for flow capacity based on Manning's Equation to ensure a proper channel section. Alternate channel sections may may De used when property aesigneG and accepted. ❑ Consideration must be given to the possible impact that any swale may have on upstream or downstream conditions. ❑ Swales must maintain a negative grade to a controlled outlet. ❑ Diverted runoff from a disturbed or exposed upland area shall be conveyed to a sediment - trapping device. 4 -6 LIMITATIONS Interceptor swales must be stabilized quickly upon excavation so as not to contribute to the erosion problem they are addressing. Swales may be unsuitable to the site conditions (too flat or steep). For permanent swales, the 1.5 feet maximum depth can be increased as long as provisions for public safety are implemented. MAINTENANCE REQUIREMENTS Swales should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) to locale and repair any damage to the channel or to clear debris or other obstructions so as not to diminish flow capacity. Damage from storms or normal construction activities such as tire ruts or disturbance of swale stabilization shall be repaired as soon as practical. SPECIFICATIONS Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.6 Interceptor Swale. ISWM Design Manual for Construction December 2003 Interceptor Swale cross Section Y Flow Plan View Channel width (per plans) 3:1 Slape or flatter 1. _ ter: {.1R1��•.0 \ I, 4 \J i Turf Reinforcement Mat Or A Layer Design Water of Crushed Stone Or Riprap Is Surface Elevation Required When Velocities Exceed 6 Fps Or Slope6meeds 2.0 k Cross Section ISWM Design Manual for Construction 47 48 December 2003 This page left intentionally blank ISWM Design Manual for Construction December 2003 Diversion Dike Applications Perimeter Control Grourtmover {EstaWistted Slope Protection as soon as possible) Sediment Trapping r� > 19" Min- ��. Channel Protection y GOmpacted Soil ;, Temporary Stabilization � Permanent Stabilization ai -.��t�w.a�` -.` -- Waste Management Housekeeping Practices 8Ii2aman Targeted Constituents • Sediment DESCRIPTION A diversion dike is a compacted soil mound, which redirects runoff to a desired o Nutrients Toxic location. The dike is typically stabilized with natural grass for low velocities or Materials with stone or erosion control mats for higher velocities. o Oil & Grease PRIMARY USE • Floatable Materials The diversion dike is normally used to intercept offsite flow upstream of the construction area and direct the flow around the disturbed soils. It can also be G Other Construction used downstream of the construction area to direct flow into a sediment Wastes reduction device such as a sediment basin or protected inlet. The diversion dike Implementation serves the same purpose as an interceptor swale and, based on the topography Requirements of the site, can be used in combination with an interceptor swale. o Capital Costs APPLICATIONS By intercepting runoff before it has the chance to cause erosion, diversion dikes C Maintenance are very effective in reducing erosion at a reasonable cost. They are applicable to a large variety of projects including site developments and linear projects C Training such as roadways and pipeline construction. Diversion dikes are normally used 0 Suitability for Slopes > as perimeter controls for construction sites with large amounts of offsite flow 5% from neighboring properties. Used in combination with swales, the diversion dike can be quickly installed with a minimum of equipment and cost, using the Legend swale excavation material to construct the dike. No sediment removal technique is required if the dike is properly stabilized and the runoff is • Significant Impact intercepted prior to crossing disturbed areas. O Medium Impact Significant savings in structural controls can be realized by using diversion o Low Impact dikes to direct sheet flow to a central area such as a sediment basin or other sediment reduction structure if the runoff crosses disturbed areas 7 Unknown or DESIGN CRITERIA Questionable Impact Fe =1.00 ❑ The maximum contributing drainage area should be 5 acres or less depending on site conditions. ❑ Maximum depth of flow at the dike shall be 1 foot based on a 2 -year return E-2 period design storm peak flow. ❑ Side slopes of the diversion dike shall be 3:1 or flatter. ❑ Minimum width of the embankment at the top shall be 2 feet. ❑ Minimum embankment height shall be 18 inches as measured from the toe 0 of slope on the upgrade side of the berm. North Central Texas Council of Governments ISWM Dedgin Manual for Construction 4 -9 December 2003 Diversion Dike II ❑ For grades less than 2 percent and velocities less than 6 feet per second, the minimum required channel stabilization shall be grass, erosion control mats or mulching. For grades in excess of 2 percent or velocities exceeding 6 feet per second, stabilization is required in the form of turf reinforcement mats (or a layer of crushed stone or rip -rap with appropriate size, gradation, and thickness depending on flow conditions). Velocities greater than 8 feet per second will require approval by the local jurisdiction and is discouraged. ❑ The dikes shall remain in place until all disturbed areas, which are protected by the dike are permanently stabilized unless other controls are put into place to protect the disturbed area. ❑ The flow line at the dike shall have a positive grade to drain to a controlled outlet. • Diverted runoff from a disturbed or exposed upland area shall be conveyed to a sediment - trapping device. • Soil used in construction of the dike can be on -site material. It should be free of rocks larger than three inches in diameter and should be clay, silty clay or sandy clay with a plasticity index greater than 25. If only low PI material is available it will be necessary to armor the slnnes with sfnne or neotextile to prevent erosion of the dike. LIMITATIONS Compacted earth dikes require stabilization immediately upon placement so as not to contribute to the problem they are addressing. The diversion dikes can be a hindrance to construction equipment moving on the site; therefore their locations must be carefully planned prior to installation. MAINTENANCE REQUIREMENTS Dikes should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) to determine if silt is building up behind the dike, or if erosion is occurring on the face of the dike. Silt shall be removed in a timely manner. If erosion is occurring on the face of the dike, the face of the slopes shall either be stabilized through mulch or seeding or the slopes shall be flattened. SPECIFICATIONS Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.7 Diversion Dike. ISWM Design Manual for Construction December 2003 ISWM Design Manual for C nst ucdon 4-11 December 2003 This page left intentionally blank 4 -12 ISWM Design Manual for Construction Diversion Dike Runoff Flow Positive Drainage Goss- Section Plan View Dike To Be Placed 3.1 Slope 2, 4" r^i^ In 8" Lifts, Compacted j'�I Or Flatter To 95% Std. Proctor Density Flow 18" min. 8 "min ! �= J,li, iii= , 7' -0" min. Flu " - -- - Existing Ground Turf Reinforcement Mat Or A Layer of Crushed Stone Or Riprap Is Required When Velocities Exceed 6 Fps Or Slope Exceeds 2% Cross Section ISWM Design Manual for C nst ucdon 4-11 December 2003 This page left intentionally blank 4 -12 ISWM Design Manual for Construction December 2003 Pipe Slope Drain Applications Perimeter Control Slope ersion Dike Plpe Slope Drain Sediment Trapping A 21" Channel Protection D= Pipe Diamet Temporary Stabilization 30" Permanent Stabilization Stabilized Outfall Waste Management Unstabillzed slope Housekeeping Practices Targeted Constituents DESCRIPTION A hinirolly n }ilioinn drain i a temporary C Sediment pipe (or permanent) pipeline ripe „r., ••• •., ,. .., ••,,,, ,.,, �., ,,e...... flexible pipe that conveys runoff down unstabilizedrslopes. The drain is o Nutrients Toxic anchored on the upstream end with some form of headwall to limit erosion and Materials secure the pipe. o Oil &Grease PRIMARY USE c Floatable Materials Pipe slope drains are used to protect preliminary and final graded slopes during establishment of temporary and permanent ground covers. They are used on O Other Construction sites with a long, unstabilized, steep slope area that is subject to erosion from Wastes overland flow. They are normally used in combination with interceptor swales or Implementation diversion dikes to direct the flow into the pipe area. The pipe slope drain can provide service for a relatively large area. It does not treat the runoff, therefore if Requirements the runoff contains sediment, treatment through a controlled outlet will be 0 Capital Costs required before the flow is released offsite. • Maintenance APPLICATIONS Sites with large berms or grade changes such as roadway embankments are o Training candidates for a pipe slope drain. Since provisions must be made to direct the flow into the pipe drain, some grading is normally required upstream of the pipe • Suitability for Slopes slope drain. Installed properly, slope erosion can be greatly reduced (but not ' 5% entirely eliminated) through the use of the drain. Legend Pipe slope drains also require a stabilized outlet. This is critical since the 0 Significant Impact velocities at the ouffall are normally high. Velocity dissipators such as stone or concrete rip -rap are typically required to reduce the velocity and spread the G Medium Impact flow, reducing erosion. Flow from a pipe slope drain should be routed to a sediment reduction practice (BMP with S prefix) through interceptor swales, o Low Impact diversion dikes or other suitable methods. 7 Unknown or DESIGN CRITERIA Questionable Impact Varies ❑ The entrance to the pipe slope drain may be a standard corrugated metal pre - fabricated flared end section with an integral toe plate extending a minimum of 6 inches from the bottom of the end section. E_3 ❑ The grade of the entrance shall be 3 percent maximum. ❑ The berm at the entrance shall have a minimum height of the pipe diameter + 12" and a minimum width of 3 times the pipe diameter. O All sections of the pipe slope drain shall be connected using watertight 0, collars or gasketed watertight fittings. 1 1 North Central Texas Council of Governments ISWM Design Manual for Construction 4-13 December 2003 11 Pipe Slope Drain ❑ All sediment -laden runoff conveyed by the pipe slope drain shall be directed to a sediment trapping facility. ❑ The pipe shall be secured with hold down anchors spaced 10 feet on center. ❑ Temporary pipe slope drains are to be sized to accommodate runoff flows equivalent to a 10 -year storm as calculated using the Rational Method and Manning's equation, but in no case shall pipes be sized smaller than shown on the following table: Minimum Pine Size Maximum Contributing Drainage Area 12" 0.5 Acres 18" 1.5 Acres 21" 2.5 Acres 30" 5.0 Acres Maximum drainage areas for individual pipe slope drains shall be 5 acres. For areas larger than 5 acres, additional drains shall be added. Both the entrance and outfall of the pipe slope drain should be properly stabilized. Grass can normally be used at the entrance, but armor type stabilization such as stone or concrete riprap is normally required to address the high velocities of the outfall. A riprap lined apron shall be excavated to accept the discharge from the pipe and dissipate the energy of the flow. The width of the bottom of the apron shall be 3 times the pipe diameter, and the length shall be a minimum of 6 times the pipe diameter of the drain pipe. The apron shall be a minimum of 12 inches in depth and shall be lined with riprap weighing between 50 and 150 pounds per stone at a thickness of 12 inches minimum. The apron shall be designed so that the released flow has a velocity less than 3 feet per second. LIMITATIONS ❑ Drains must be located away from construction areas since the drain can easily be damaged by construction traffic. ❑ Grading is normally required upstream of the pipe slope drain in order to direct flow into the system. This can cause additional cost and maintenance. Securing the pipe to the slope can be difficult and require significant maintenance during the life of the system. • In situations where pipe slope drains convey sediment -laden runoff, pipes can become clogged during large rain events causing water to overtop the diversion dike thereby creating a serious erosion condition. • A pipe slope drain reduces erosion but does not prevent it or reduce the amount of sediment in runoff. Additional measures should be used in conjunction with the pipe slope drain to treat the flow. MAINTENANCE REQUIREMENTS Pipe slope drains should be inspected regularly (al least as often as required by the TPDES Construction General Permit, Appendix A) to locate and repair any damage to joints or clogging of the pipe. In cases where the diversion dike has deteriorated around the entrance of the pipe, it may be necessary to reinforce the dike with sandbags or to install a concrete collar to prevent failure. Signs of erosion around the pipe drain should be addressed in a timely manner by stabilizing the area with erosion control mats, crushed stone, concrete, or other acceptable methods. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.14 Pipe Slope Drain. 4 -14 ISWM Design Manual for Construction December 2003 ISWM Dedpi Manual for Construction 4-15 December 2003 This page left intentionally blank 4 -16 ISWM Dedp Manual for Conswctlon December 2003 Vegetation Applications Perimeter Control Slope Protection Flow Sediment Trapping Channel Protection Temporary Stabilization Permanent Stabilization afto Waste Management Housekeeping Practices Targeted Constituents DESCRIPTION Best Management Practice is the ensuing or of annual Management • Sediment yetation, as a Sodding Mend - . small grains, or legumes to provide interim and permanent vegetative Q Nutrients Toxic stabilization for disturbed areas. Materials PRIMARY USE o Oil & Grease Vegetation is used as a temporary or permanent stabilization technique for areas disturbed by construction. As a temporary control, vegetation is used to o Floatable Materials stabilize stockpiles and barren areas that are inactive for long periods of time. As a permanent control, grasses and other vegetation provide good protection o Other Construction Wastes from erosion along with some filtering for overland runoff. Subjected to acceptable runoff velocities, vegetation can provide a positive method of permanent storm water management as well as a visual amenity to the site. Implementation Requirements Other BMPs may be required to assist during the establishment of vegetation. Q Capital Costs These other techniques include erosion control matting, swales, and dikes to direct Flow around newly seeded areas and proper grading to limit runoff Q Maintenance velocities during construction. O Training APPLICATIONS Vegetation effectively reduces erosion in swales, stockpiles, berms, mild to • Suitability for Slopes >5% medium slopes, and along roadways. Vegetative strips can provide some Legend protection when used as a perimeter control for utility and site development construction. • Significant Impact In many cases, the initial cost of temporary seeding may be high compared to Q Medium Impact tarps or covers for stockpiles or other barren areas subject to erosion. This initial cost should be weighed with the amount of time the area is to remain o Low Impact inactive, since maintenance cost for vegetated areas is much less than most structural controls. 7 Unknown or Questionable Impact Fe =0.90 DESIGN CRITERIA Surface Preparation ❑ Interim or final grading must be completed prior to seeding or sodding. E -4 ❑ Install all necessary erosion structures such as dikes, swales, diversions, etc. prior to seeding or sodding. ❑ When establishing vegetation from seed, groove or furrow slopes steeper than 3:1 on the contour line before seeding. North Central Texas Council of Governments December 2003 Vegetation ❑ Provide 4 -6 inches of topsoil over rock, gravel or otherwise unsuitable soils. Poor quality topsoil should be amended with compost before applying seed or sod. Amendment should be three parts of topsoil to one part compost by volume thoroughly blended. ❑ Seed bed should be well pulverized, loose and uniform. Plant Selection, Fertilization and Seeding ❑ Use only high quality, USDA certified seed. ❑ Use an appropriate species or species mixture adapted to local climate, soil conditions and season as shown below, or consult with the local office of the Natural Resource Conservation Service (NRCS) or Engineering Extension service as necessary for selection of proper species and application technique in this area. ❑ Seeding rate should be in accordance with the table below or as recommended by the NRCS or Engineering Extension service. ❑ Fertilizer shall be applied according to the manufacturer's recommendation with proper spreader equipment. Typical appl; ?0 grade 'art;';--,;- 10'b °. pe ? 000.2. ❑ If hydro- seeding is used, do not mix seed and fertilizer more than 30 minutes before application. ❑ Evenly apply seed using cyclone seeder, seed drill, cultipacker, terraseeding, or hydroseeder. ❑ Provide adequate water to aid in establishment of vegetation. ❑ Use appropriate mulching techniques where necessary, especially during cold periods of the year. Sodding ❑ Sod shall be St. Augustine grass, common bermudagrass, buffalograss, an approved hybrid of common Bermudagrass or an approved zoysiagrass. ❑ The sod should be mowed prior to sod cutting so that the height of the grass shall not exceed 2- inches and should not be harvested or planted when its moisture condition is so excessively wet or dry that its survival shall be affected. ❑ Sod shall be planted within 3 -days after it is excavated. ❑ In areas subject to direct sunlight, pre- moisten prepared sod bed by watering immediately prior to placing sod. ❑ Sodded areas shall be thoroughly watered immediately after they are planted. ADDITIONAL GUIDANCE • Establishing a good vegetative cover is dependent of the season of the year. Projects that commence in the fall of the year may not be candidates for vegetation used as a BMP. • Where vegetation is used in swales and channels it may be necessary to use sod, rather than seeding, to establish an erosion resistant surface to accommodate rainfall runoff flows. • Where vegetation is used for perimeter control, the use of sod is necessary for a fifteen -foot width. • Mulch should be used to enhance vegetative growth, in that mulch protects seeds from heat, prevents soil moisture loss, and provides erosion protection until the vegetation is established. • Fertilizers have both beneficial and adverse effects. Fertilizers provide nutrients to the vegetation, but also fertilizers are a source of nutrients to streams and lakes. In this latter regard they are a pollutant. The use of native vegetation rather than exotics reduces the need of fertilizer. Organic fertilizers are generally preferred over chemical fertilizers from the standpoint of environmental conditions. ❑ Steep slopes represent a problem for establishing vegetation. Bonded Fiber Matrix or Mechanically Bonded Fiber Matrix products applied with a tackifier are useful for establishing vegetation on slopes. TEMPORARY VEGETATION The table on the following page lists recommended plant species for the North Central Texas region depending on the season for planting. ISWM Design Manual for Construction 4-17 4 -18 ISWM Design Manual for Consmxdon December 2003 Vegetation RECOMMENDED GRASS MIXTURE FOR TEMPORARY EROSION CONTROL: SEASON COMMON NAME RATE LBS /ACRE Aug 15 - Nov 30 Tall Fescue 4.0 Blue Grama Western Wheat Grass 5.0 Side Oats Grama Wheat Red, Winter 30.0 May 1 - Aug 31 Foxtail Millet 30.0 Feb 15 — May 31 Annual Rye 20.0 Sep 1 — Dec 31 PERMANENT VEGETATION Grass seed for permanent vegetation can be sown at the same time as seeding for temporary (annual) vegetation. Drought tolerant native vegetation is recommended rather than exotics as a long -term water conservation measure. Native grasses can be planted as seed or placed as sod. Buffaloe 609, for example, is a hybrid grass that is placed as sod. Fertilizers are not normally used to establish native grasses, but mulching is effective in retaining soil moisture for the native plants. RECOMMENDED NATIVE GRASSES FOR PERMANENT EROSION CONTROL GRASS RATE Buffaloe Grass Full Turf Application 3 -4 Ibs /1000 sgft Blue Grama Full Turf Application 2 Ibs /1000 sgft Side Oats Grama Applied with other native seed % lb/1000 s ft LIMITATIONS Vegetation is not appropriate for areas subjected to heavy pedestrian or vehicular traffic. As a temporary technique, vegetation may be costly when compared to other techniques. Vegetation may require a period of days to weeks before becoming established. Lack of water and lack of or improper use of soil amendments (compost, fertilizer, etc.) will usually result in poor turf establishment. Alternate erosion control (e.g. mulching, sodding vegetative strips, etc ) should be used until vegetation can be established. Vegetation is not appropriate for rock, gravel or coarse - grained soils unless 4 to 6 inches of topsoil is applied. MAINTENANCE REQUIREMENTS Protect newly seeded areas from excessive runoff and traffic until vegetation is established. A watering and fertilizing schedule will be required as part of the SWPPP to assist in the establishment of the vegetation. Vegetation should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) to ensure that the plant material is established properly and remains healthy. Bare spots shall be reseeded and /or protected from erosion by mulch or other BMP. Accumulated sediment deposited by runoff should be removed to prevent smothering of the vegetation. In addition, determine the source of excess sediment and implement appropriate BMPs to control the erosion. ISWM Design Manual for Construction 4-19 December 2003 This page left intentionally blank 4 -20 ISWM Design Manual for Ox wwlon December 2003 Mulching Applications Perimeter Control Slope Protection Sediment Trapping I ' Mulching Channel Protection I Temporary Stabilization Permanent Stabilization I5tUf B 01 Waste Management Housekeeping Practices Targeted Constituents DESCRIPTION • Sediment Mulchino is the application of a lay_ er of chopped straw, hay, chipped site vegetation, or other material, which is spread uniformly over barren areas to O Nutrients Toxic reduce the effects of erosion from rainfall. Types of mulch include organic Materials materials (e.g. compost mixtures), straw, wood chips, bark, or other fibers. Another form of mulch, which has been commercialized, uses straw or other O Oil & Grease material with organic and inorganic binding systems which are typically sprayed over the control area. Some of these products may be very effective on steeper O Floatable Materials slopes where there is no vehicular or foot traffic to disrupt the application until O Other Construction vegetation is established. Mulch should not contain chipped manufactured Wastes boards or chemically treated wood such as particleboard, railroad ties or similar Implementation treated wood. Hay should not be used as a replacement for straw unless it can be determined that it is weed and seed free. Requirements PRIMARY USE G Capital Costs Mulch is used to temporarily and /or permanently stabilize bare or freshly C Maintenance seeded areas. It protects the soil from erosion and moisture loss by lessening the effects of wind, water, and sunlight. It also decreases the velocity of sheet O Training flow, thereby reducing the volume of sediment -laden water flow leaving the mulched area. O Suitability for Slopes >5% APPLICATIONS Legend Mulch may be used on most construction - related disturbed area for surface protection including: • Significant Impact ❑ Freshly seeded or planted areas, ❑ Areas at risk due to the time period being unsuitable for growing vegetation, Q Medium Impact ❑ Areas that are not conducive to seeding or planting. ❑ Steep slopes (e.g. >3HAV), provided the mulch is anchored to the soil by O Low Impact use of a combination of tackifiers and netting, or crimping. Unknown or DESIGN CRITERIA Questionable Impact Mulch may be used by itself or in combination with netting or other anchors to Fe =0.90 promote soil stabilization. ❑ Choice of mulch depends largely on slope, climate, and soil type in addition E -5 to availability of materials. ❑ Mulch should be applied in an even and uniform manner where concentrated water flow is negligible. ❑ The application of straw mulch should be approximately 2 tons dry straw per acre spread uniformly across the area. Other forms of mulch, such as wood chips or chopped site vegetation, should be placed in thicknesses of two- inches or greater over the area. North central Texas Council of Governments ISWM Design Manual for Cansuixtlon December 2003 Mulching ❑ Straw mulch should be anchored by application of a fiber mulch binder, by the application of a synthetic liquid mulch binder, by using a tractor -drawn crimper to punch into the soil, or by placing a netting above the mulch stapled to the ground, as required. ❑ Mulch hydraulically applied with tackifiers and binding agents is commercially available as a bonded fiber matrix (BFM) which may be particularly effective on slopes steeper than 2.5:1. ❑ Wood chips are suitable for areas that will not require mowing frequently and are heavy enough that they do not require anchoring. They do, however, deplete nitrogen from the soil, which is a necessary nutrient for all plants. To alleviate this condition, wood chips must be treated with 12 pounds of ammonium nitrate per ton of mulch used. ❑ Bark chips are popular for ornamental applications, as they do not require anchoring, do not decompose very rapidly, and serve as an excellent insulation material. When using bark chips, it is not necessary to treat for nitrogen deficiency or to fertilize. ❑ Compost and wood mulch mixtures should be a blend of 50% untreated wood mulch with 50% compost measured by volume. Wood mulch should be less than or equal to 5 in. in length with 95% passing a t- in. screen and less than 30% passing a 1 -in. screen. The compusi shall meet the Physical Requirements specified in Table 1 of TxDOT Special Specification 1058, Compost, which can be found in Appendix F. ❑ Prior to the placement of any mulch, the area to be protected must be graded in accordance with plans. ❑ Fertilization and soil treatment should then be done prior to placement of mulch with the exceptions of when seed is to be applied by means of hydro -seed or when seed is distributed following straw mulch spreading during winter months. ❑ Organic mulches may be distributed by hand or my mechanical means, but to be effective a complete covering is required. ❑ Refer to the table on the following page for additional guidance. LIMITATIONS Mulches are subject to removal by wind or water under severe climatic conditions. Mulches lower the soil temperature, which may result in longer seed germination periods. Mulch should not be applied within the ordinary high -water mark of surface waters, as it can be a potential floatation material. MAINTENANCE REQUIREMENTS Mulched areas should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) for thin or bare spots caused by natural decomposition or weather related events. Mulch in high traffic areas should be replaced on a regular basis to maintain uniform protection. Excess mulch should be brought to the site and stockpiled for use during the maintenance period to dress problem spots. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.17 Mulching. 4 -22 ISWM Design Manual for Conmuctlon December 2003 Mulching Mulch Standards and Guidelines Mulch Quality Application Remarks Material Standards Rates Cost - effective when applied with Air - dried, free from adequate thickness. Hay can be used Straw undesirable seed 2 " -3" thick, Approx if weed and seed free. In windy areas and from coarse 2 tons per acre. and on steep slopes, straw must be material. held in place by crimping, using a tackifier, or covering with netting. Should include Cost - effective manner of disposing of gradation from fine gradation vegetative debris from site. Do not coarse 2 "minimum place in areas subject to flooding. Chipped Site promote thickness over De omposition chipped vegetation c Vegetation interlocking area; approx. 10 etes with nutrients comptrients important to properties. tons per acre. subsequent grass establishment. Maximum size 6 Mulch must be free of waste materials inches in length. such as plastic bag, metal debris, etc. Special caution is advised regarding Compost shall the source and composition of wood Wood Mulch meet the Physical 2" minimum mulches. Determine whether the and Requirements thickness over preparation include weed seed control. Compost (Table 1) of area; approx. 10 Wood mulches are an excellent soil Mixture Appendix F. tons per acre. amendment, ultimately improving the organic content of the soil. Approx 25 -30 Ibs Apply with a hydromulcher. Fibers No growth inhibiting per 1000 sf or should be kept to less than'' /. inch to Hydromulch factors. 1500 -2000 Ibs per prevent clogging equipment. Best used in conjunction with seed at time of acre. application. Follow the Bonded fiber matrix may be particularly Hydraulically manufacturer's effective on slopes steeper than 2.5:1. Bonded applied mulch with recommendations. Fiber Matrix lackifiers and (typically 3000 Ibs binding agents. per acre or greater). ISWM Design Manual for Conwixtlon 423 December 2003 This page left intentionally blank ISINM Design Manual for Construction December 2003 Erosion Control Blankets Applications Perimeter Control /// Slope Protection Sediment Trapping Erosion Channel Protection 0 ! Control Temporary Stabilization Raw— Blanket Blanket Stabilization laws. Ist a DI ��+� ur ~� Waste Management ' xa Housekeeping Practices Targeted Constituents DESCRIPTION C Sediment An erosion. Control blanket (ECB) is a temporary degradable erosion prevention product placed over disturbed areas to limit the effects of erosion due to rainfall O Nutrients Toxic impact and runoff across barren soil. Erosion control blankets are Materials manufactured by a wide variety of vendors addressing a wide variety of conditions such as slope and functional longevity. Blankets are typically O Oil & Grease constructed of natural materials such as coir (coconut husk) fibers, excelsior O Floatable Materials (wood) or straw covered on both sides by degradable synthetic netting. 0 Other Construction PRIMARY USE Wastes Erosion control blankets are designed to hold seed and soil in place until Implementation vegetation is established on disturbed areas. They can be used on any disturbed areas, but are particularly effective for slopes and embankments. Requirements When used in combination with sediment trapping BMPs such as silt fence or Capital Costs wattles, blankets may be used as a perimeter control with or without vegetation. C Maintenance DESIGN CRITERIA ❑ The type and class of erosion control mat must be specified as appropriate C Training for the slope of the area to be protected and the anticipated length of service. C Suitability for Slopes ❑ ECBs should meet the applicable "Minimum Performance Standards for > 5% TxDOT" as published by TxDOT in its "Erosion Control Report" and /or be Legend listed on the most current annual "Approved Products List for TxDOT" applicable to TxDOT Item 169 Soil Retention Blanket and its Special 0 Significant Impact Provisions. ❑ Prior to the installation of any erosion control matting, all rocks, dirt clods, C Medium Impact slumps, roots, trash and any other obstructions that would prevent the mat from lying in direct contact with the soil shall be removed. Anchor trenching O Low Impact shall be located along the entire perimeter of the installation area, except 7 Unknown or for small areas with less than 2% slope. ❑ Installation and anchoring shall conform to the recommendations shown Questionable Impact Fe =0.90 within the manufacturer's published literature for the approved erosion control blanket. Particular attention must be paid to joints and overlapping material. E -6 ❑ After appropriate installation, the blankets should be checked for uniform contact with the soil; security of the lap joints, and flushness of the staples with the ground. , North Central Texas Council of Governments December 2003 I Erosion Control Blankets II LIMITATIONS Care must be exercised in specifying the proper Erosion Control Blanket product for the intended application. For application requiring a permanent erosion control product, or for stabilizing slopes greater than 2H:lV or lining open conveyance channels, Turf Reinforcement Mats should be utilized. MAINTENANCE REQUIREMENTS Erosion Control Blankets should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) for bare spots caused by weather related events. Missing or loosened blankets must be replaced or re- anchored. Also check for excess sediment deposited from runoff. Remove sediment and /or replace blanket as necessary. In addition, determine the source of excess sediment and implement appropriate BMPs to control the erosion. SPECIFICATIONS Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction – North Central Texas Council of Governments, Section 201.16 Erosion Control Blankets. ISWM Design Manual for Construction 4.25 4 -26 Design Manual for Conatiuctlon December 2003 ISWM Destp Manual for ConsmwWn 427 December 2003 This page left intentionally blank ISWM Design Manual for Gonsmwdw December 2003 Channel Protection Applications Perimeter Control Channel Lining —� Slope Protection Sediment Trapping F Channel Protection m A -.. Temporary Stabilization Permanent Stabilization Waste Management - Housekeeping Practices DESCRIPTION Targeted Constituents Channel protection includes a variety of erosion prevention techniques • Sediment including vegetation, turf reinforcement matt an Channel protection is .............y ..,g.,...,..,., ..,........,......,..... and riprap. _.._.... -' �'- --- .._..._ required to protect the sides and bottom of open channels from erosion caused O Nutrients Toxic by storm water flows. Materials PRIMARY USE O Oil & Grease The information presented in this Fact Sheet primarily addresses protection of temporary channels constructed to convey storm water runoff on a property o Floatable Materials under development. Grass - lining should be adequate for most temporary O Other Construction channels, although some situations may require additional protection provided Wastes by turf reinforcement mats or riprap. Implementation There are separate requirements for design of permanent open channels in the Requirements iSWM Design Manual for Development/Redevelopment and /or local drainage manual; however, permanent channels must also be protected from erosion • Capital Costs during the construction phase. O Maintenance APPLICATIONS O Training Channel protection for constructed open channels conveying concentrated storm water runoff. Examples include: • Suitability for Slopes ❑ discharge from diversion dikes or interceptor swales; > 5% ❑ flows to and discharges from sediment traps or basins; ❑ roadside drainage channels; Legend ❑ conveyances in low areas. • Significant Impact This Fact Sheet does not apply to alterations of natural channels. Contact the C Medium Impact local jurisdiction and /or the Corps of Engineers, Fort Worth District Office for information on regulatory requirements. o Low Impact DESIGN CRITERIA ? Unknown or Temporary Channel Design Questionable Impact ❑ All temporary channels shall be designed to carry the peak runoff for the Varies 10 -year design storm without eroding. Permanent channels must be designed in accordance with the iSWM Design Manual for E Development/Redevelopment (and /or local requirements). ❑ Channels may be trapezoidal, parabolic, or v- shaped; however v- shaped -7 channels may be difficult to stabilize, so they are generally used only where the volume and rate flow is tow. ❑ Side slopes shall be 3: 3:1 or flatter to aid in the establishment of vegetation and /or for maintenance. North Central Texas Council of Governments iSWM Design Manual for Construction 4-29 December 2003 I) Channel Protection II Grass - Lining ❑ Grass - lining is appropriate for grades less than 2 percent and velocities less than 6 feet per second. ❑ If the design velocity of a channel to be vegetated by seeding exceeds 2 feet per second, Erosion Control Blankets (Fact Sheet E -6) must be used to provide protection and assist in establishing the vegetation. ❑ Refer to the Fact Sheet E -4, Vegetation, for appropriate vegetation types and information on establishment of vegetation. In addition, consult manufacturer's literature where erosion control blankets are used. Turf Reinforcement Mat Lining • Turf reinforcement mats (TRMs) provide long -term erosion protection in channels where flow conditions exceed the ability of vegetation alone to withstand erosive forces (grades in excess of 2 percent or velocities exceeding 6 feet per second). • Turf reinforcement mats may provide channel protection for conditions of up to approximately 6 Ibs /ft2 sheer stress. The appropriate TRM product roust be selected in accordance with the manufacturer's specifications to meet the design flow conditions. ❑ Turf reinforcement mats are generally preferred over stone stabilization. ❑ TRM installation and anchoring shall conform to the recommendations shown within the manufacturer's published literature. ❑ Refer to the Fact Sheet E-4, Vegetation, for appropriate vegetation types and information on establishment of vegetation. In addition, consult the TRM manufacturer's literature for special considerations. Crushed Stone and Riprap ❑ As an alternate to turf reinforcement mats, a layer of crushed stone or rip -rap with appropriate size, gradation, and thickness depending on flow conditions may also be used for grades in excess of 2 percent or velocities exceeding 6 feet per second. ❑ The size and gradation of the stone or riprap and thickness of the lining must be designed appropriately for the flow conditions to prevent the lining from washing away. ❑ Riprap should be placed on a lining of geotextile fabric to prevent soil movement into or through the riprap. The geotextile must be keyed in at the top of the bank. LIMITATIONS The vegetation for grass -lined channels may be difficult to establish unless the seedbed is protected from high flows until the seed germinates and matures. MAINTENANCE REQUIREMENTS Channel protection measures should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) for signs of bare spots, erosion, or excessive sediment deposition. Bare spots or areas experiencing erosion should be repaired immediately by replacing lining material. Where excessive sediment is discovered, remove sediment and repair lining as necessary. In addition, determine the source of excess sediment and implement appropriate BMPs to control the erosion. While vegetation is being established for grass - lining and turf reinforcement mats, check frequently to ensure proper growing conditions and adequate coverage. Also, remove any accumulated sediment in the channel bottom frequently to prevent damage to the vegetation. SPECIFICATIONS No specification for construction of temporary channel protection is currently available in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments. 4 -30 ISWM Design Manual for Construction December 2003 Dust Control Applications Perimeter Control DESCRIPTION Dust control includes those measures necessary to prevent wind transport of Slope Protection dust from disturbed soil surfaces onto roadways, drainage ways, and surface Sediment Trapping waters. Channel Protection PRIMARY USE Temporary Stabilization Dust control is applied in areas (including roadways) subject to surface and air Permanent Stabilization movement to dust where on -site and off -site impacts to roadways, drainage Waste Management ways, or surface waters are likely. Housekeeping Practices DESIGN CRITERIA ❑ Vegetate or mulch areas that will not receive vehicle traffic. In areas where Targeted Constituents planting, mulching, or paving is impractical, apply gravel or landscaping rock. • Sediment ❑ 1 imit dust generation by clearing only those areas where immediate activity will take place, leaving the remaining area(s) in the original condition, if O Nutrients/ I oxic stable. Maintain the original cover as long as practicable. Materials ❑ Construct natural or artificial windbreaks or windscreens. These may be O Oil & Grease designed as enclosures for small dust sources. • Sprinkle the site with water until dampened sufficiently to prevent dust and O Floatable Materials repeat as needed. Do not apply water in quantities to cause runoff. • Irrigation water can be used for dust control. Irrigation systems should be 0 Other Construction installed as a first step on sites where dust control is a concern. Wastes Implementation SPECIFICATIONS Requirements No specification for construction of this item is currently available in the Standard Specifications for Public Works Construction — North Central Texas 0 Capital Costs Council of Governments. O Maintenance • Training O Suitability for Slopes >5% Legend • Significant Impact C Medium Impact 0 Low Impact ? Unknown or Questionable Impact E -8 0 North Central Texas Council of Governments ISWM Design Manual for Construction 431 432 December 2003 This page left intentionally blank ISWM Dedpt Manual for Construction December 2003 Silt Fence Applications Perimeter Control --- Drainage area i Disturbed �''.. limits �" Slope Protection Area 5�1F�'' SedimentTrappin Channel Protection i gift Fence` '.. / Temporary Stabilization Stabilized Area ` Permanent Stabilization Supports Waste Management Housekeeping Practices DESCRIPTION A silt fence consists of geotextile fabric supported by wire mesh netting or other Targeted Constituents backing stretched between either wooden or metal posts with the lower edge of • Sediment the fabric securely embedded six - inches in the soil. The fence is typically o Nutrients Toxic located downstream of disturbed areas to intercept runoff in the form of sheet Materials flow. A silt fence provides both fiftration and time for sediment settling by reducing the velocity of the runoff. o Oil & Grease PRIMARY USE C Floalable Materials Silt fence is normally used as perimeter control located downstream of disturbed areas. It is only feasible for non - concentrated, sheet flow conditions. o Other Construction If it becomes necessary to place a silt fence where concentrated flows may be Wastes Implementation experienced (e.g. where two silt fences join at an angle, or across minor channels or gullies), it will be necessary to reinforce the silt fence at that area Requirements by a rock berm or sand bag berm, or other structural measures that will support the silt fence. G Capital Costs APPLICATIONS • Maintenance Silt fence is an economical means to treat overland, non - concentrated flows for O Training all types of projects. Silt fences are used as perimeter control devices for both site developers and linear (roadway) type projects. They are most effective with Q Suitability for Slopes > coarse to silty soil types. Due to the potential of clogging and limited 5% effectiveness, silt fences should be used with caution in areas that have predominantly clay soil types. In this latter instance a soils engineer or soil Legend scientist should confirm the suitability of silt fence for that application • Significant Impact DESIGN CRITERIA ❑ Fences are to be constructed along a line of constant elevation (along a p Medium Impact contour line) where possible. o Low Impact • Maximum drainage area shall be 0.25 acre per 100 linear feet of silt fence. • Maximum flow to any 20 foot section of silt fence shall be 1 CFS. ? Unknown or • Maximum distance of flow to silt fence shall be 200 feel or less. If the slope Questionable Imnact exceeds 10 percent the flow distance shall be less than 50 feet. F @ -U. %CJ ❑ Maximum slope adjacent to the fence shall be 2:1. ❑ If 50% or less soil, by weight, passes the U.S. Standard sieve No. 200; select the apparent opening size (A.O.S.) to retain 85% of the soil. S ❑ If 85% or more of soil by weight, passes the U.S. Standard sieve No. 200, -1 silt fences shall not be used unless the soil mass is evaluated and deemed suitable by a soil scientist or geotechnical engineer concerning the erodiblity of the soil mass, dispersive characteristics, and the potential 01 grain -size characteristics of the material that is likely to be eroded. North Central Texas Council of Governments ISWM Design Manual for Construction 4-33 December 2003 Silt Fence ❑ Stone overflow structures or other outlet control devices shall be installed at all low points along the fence or spaced at approximately 300 feet if there is no apparent low point. ❑ Filter stone for overflow structure shall be 1 -1/2" washed stone containing no fines. Angular shaped stone is preferable to rounded shapes. ❑ Silt fence fabric must meet the following minimum criteria: o Tensile Strength, ASTM D4632 Test Method for Grab Breaking Load and Elongation of Geotextiles, 90 -Ibs. o Puncture Rating, ASTM D4833 Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products, 60 -Ibs. o Mullen Burst Rating, ASTM D3786 Standard Test Method for Hydraulic Bursting Strength of Textile Fabrics - Diaphragm Bursting Strength Tester Method, 280 -psi. o Apparent Opening Size, ASTM D4751 Test Method for Determining Apparent Opening Size of a Geotextile, U.S. Sieve No. 70 (max) to No. 100 (min) o Ultraviolet Resistance, ASTM D4355. Minimum 70 percent. 11 Fence posts shall be galvanized steel and may be T- section or L- section. 1.3 pounds per linear foot minimum, and 4 feet in length minimum. Wood Posts may be used depending on anticipated length of service and provided they are 4 feet in length minimum and have a nominal cross section of 2 inches by 4 inches for pine or 2 inches by 2 inches for hardwoods. ❑ Silt fence shall be supported by galvanized steel wire fence fabric as follows: o 4" x 4" mesh size, W 1.4 /1.4, minimum 14 -gauge wire fence fabric; o Hog wire, 12 gauge wire, small openings installed at bottom of silt fence, o Standard 2" x 2" chain link fence fabric; or o Other welded or woven steel fabrics consisting of equal or smaller spacing as that listed herein and appropriate gauge wire to provide support. ❑ A 6 -inch wide trench is to be cut 6 inches deep at the toe of the fence to allow the fabric to be laid below the surface and backfilled with compacted earth or gravel to prevent bypass of runoff under the fence. Fabric shall overlap at abutting ends a minimum of 3 feet and shall be joined such that no leakage or bypass occurs. ❑ Sufficient room for the operation of sediment removal equipment shall be provided between the silt fence and other obstructions in order to properly maintain the fence. ❑ The ends of the fence shall be turned upstream to prevent bypass of storm water. LIMITATIONS Minor ponding will likely occur at the upstream side of the silt fence, which could result in minor localized flooding. Silt fences are not intended for use as check dams in swales or low areas subject to concentrated flow. Silt fences shall not be used where soil conditions prevent a minimum toe -in depth of 6 inches or installation of support posts to a depth of 12 inches. Silt fence can interfere with construction operations; therefore planning of access routes onto the site is critical. Silt fence can fail structurally under heavy storm flows, creating maintenance problems and reducing the effectiveness of the system. MAINTENANCE REQUIREMENTS Silt fence should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) for buildup of excess sediment, undercutting, sags, and other failures. Sediment should be removed when it reaches approximately one -half the height of the fence. In addition, determine the source of excess sediment and implement appropriate BMPs to control the erosion. If the fabric becomes damaged or clogged, it should be repaired or replaced as necessary. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction - North Central Texas Council of Governments, Section 201.5 Silt Fence. 4-34 ISWM Design Manual for Construction December 2003 Silt Fence U Stone Overflow Structure Sgt Fence (min. Height 24" Above Exist. Ground) 4' Length (min.) Fence Post Max. 6' Spacing, / Min. Embedment = T Compacted Earth Or Rock Backfill f Wire Mesh Backing 6" Min. Trench Fabric Tce -in 6" Min. Silt Fence 6' Min. Each Side H 8' Max. 112 H Sift Fence r r s 1 1/2" Filter Stone fi" Min. Top Of F� Stone, Each Side Of Sift Fence Stone Overflow Structure ISWM Design Manual for C nsawdon +35 December 2003 This page left intentionally blank 4 -36 ISWM Design Manual for Unsawdon December 2003 Organic Filter Berm Applications Perimeter Control Slope Protection Sediment Trapping Channel Protection W ux.,r� �� --. - " "._ •• Temporary Stabilization Permanent Stabilization Waste Management .. ".. " "... _ uer� +s �: r:uxr• of Housekeeping Practices Targeted Constituents DESCRIPTION • Sediment Organic filter berms are linear harms constructed of a mix of compost and mulch and placed on a contour to control runoff and filter sediment. The O Nutrients Toxic organic filler berm provides both filtration and time for sediment settling by Materials reducing the velocity of the runoff. o Oil &Grease PRIMARY USE G Floatable Materials Organic filler berms are very well suited to sites with small disturbed drainage areas that are not subjected to concentrated flows and that will ultimately be o Other Construction seeded, sodded, or landscaped. Wastes Implementation APPLICATIONS Properly designed, the organic filter berm is economical due to the ease of Requirements emplacement and because it can be tilled into the soil at the end of project, p Capital Costs limiting the cost of removal and adding to the organic content of the soil. The berms are used as perimeter control devices for both development sites and 0 Maintenance linear (roadway) type projects. They are most effective with coarse to silty soil types. o Training DESIGN CRITERIA c Suitability for Slopes ❑ Filter berms are to be constructed along a line of constant elevation (along ' 5% a contour line) where possible. Legend ❑ Maximum drainage area shall be 0.25 acre per 100 linear feet of filter berm. ❑ Maximum flow to any 20 foot section of filter berm shall be 1 CFS. • Significant Impact • Maximum distance of flow to berm shall be 200 feet or less. If the slope exceeds 10 percent the flow distance shall be less than 50 feet. a Medium Impact • Maximum slope adjacent to the filter berm shall be 2:1. ❑ Trapezoidal shaped berms should be 1 -1/2 to 3 feel high with a top width of O Low Impact 2 to 3 feet and a base of 3 to 5 feel wide. 7 Unknown or ❑ Windrow (triangular) shaped berms should be 1 to 2 feel high and 2 to 4 feet wide. Questionable Impact Fe =0.75 ❑ Organic filter berms shall be constructed of a mixture of 50% compost and 50% wood mulch. The compost shall meet the Physical Requirements specified in Table 1 of TxDOT Special Specification 1058, Compost, which S_2 can be found in Appendix F. Mulch shall be untreated wood chips less than or equal to 5 inches in length with 95% passing a 2 -inch screen and less than 30% passing a 1 -inch screen. ❑ Organic filter berms may be seeded with a seed loading of 1 lb. per 10 ; linear feel for small berms (1ft. by 2 ft.) or 2.25 Ibs per 10 linear ft. for larger berms (1.5 ft. by 3 ft.) North Central Texas Council of Governments December 2003 I Organic Filter Berm LIMITATIONS Minor ponding will likely occur at the upstream side of the organic filter berm that could result in minor localized flooding. Berms should not be constructed in swales or low areas since they will be subject to concentrated flow and may be overtopped resulting in failure of the filter berm. Berms can interfere with construction operations; therefore planning of access routes onto the site is critical. Typically excess material is stockpiled on site for repairs to berms disturbed by construction activity. MAINTENANCE REQUIREMENTS Filter berms should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) for buildup of excess sediment, undercutting, and other failures. Silt must be removed when it reaches % the height of the berm. Silt may be raked from the disturbed side of the device to clean side the berm for the first few times that it becomes clogged to prevent ponding. Repeated clogging of the berm at one location will require replacement of the organic filter material or may require installation of another BMP to prevent failure of the berm. Dimensions of the berm must be maintained by replacing organic filter material when necessary. There shall be no signs of erosion, breeching or runoff around or under the berm. SPECIFICATION No specification for construction of this item is currently available in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments. Manual for Construction 437 4-38 ISWM Der Manual for Construction December 2003 Triangular Sediment Filter Dike Applications 4'x4' or Perimeter Control 6' x 6' welded varies ---� Slope Protection wife fabric '♦ Filter Fabric Sediment Trapping ♦ ♦4 ♦. ♦�♦•r ♦ ♦�1'♦�♦ ♦ Channel Protection ♦ ��1�1�� ♦♦ Temporary Stabilization Fabric not + Ir.�� ♦� Permanent Stabilization ♦ ♦ 5110wn for t.Iari ♦ + ♦ ♦ -- 1 Waste Management Anchors @ 4' Housekeeping Practices Targeted Constituents DESCRIPTION • Sediment A Triangular Sediment Filter Dike is a self - contained silt fence consisting of filler fabric wrapped around welded wire fabric shaped into a triangular cross section. o Nutrients Toxic While similar in use to a silt fence, the dike is reusable, sturdier, transportable, Materials and can be used on paved areas or in situations where it is impractical to install embedded posts for support. O Oil & Grease PRIMARY USE C Floatable Materials Triangular filter dikes are used in place of silt fence, treating sediment flow at O Other Construction the perimeter of construction areas and at the perimeter of the site. Also, the Wastes dikes can serve as stream protection devices by preventing sediment from Implementation entering the streams or as check dams in small swales. Requirements Triangular sediment filter dikes are especially useful for construction areas G Capital Costs surrounded by pavement, where silt fence, filter berm, or other BMP installation is impractical. C Maintenance APPLICATIONS o Training Triangular dikes are used to provide perimeter control by detaining sediment on a disturbed site with drainage that would otherwise flow onto adjacent C Suitability for Slopes > properties. Triangular dikes also serve as sediment trapping devices when 5% used in areas of sheet flow across disturbed areas or are placed along stream Legend banks to prevent sediment laden sheet flow from entering the stream. The dikes can be subjected to more concentrated flows and a higher flow rate than silt 0 Significant Impact fence. G Medium Impact DESIGN CRITERIA O Low Impact ❑ Dikes can be used on a variety of surfaces ranging from disturbed earth to pavement. 7 Unknown or • Dikes are to be installed along a line of constant elevation (along a contour line). Questionable Impact Fe -0.75 • Maximum drainage area shall be 0.25 acre per 100 linear feet of dike. ❑ Maximum flow to any 20 foot section of dike shall be 1 CFS. ❑ Maximum distance of flow to dike shall be 200 feet or less. If the slope exceeds 10 percent the flow distance shall be less than 50 feet. S -3 ❑ Maximum slope adjacent to the dike shall be 2:1. 0 North central Texas Council of Governments ISWM Design Manual for Construction December 2003 Triangular Sediment Filter Dike ❑ If 50% or less of soil, by weight, passes the U.S. Standard sieve No. 200, select the apparent opening size (A.O.S.) to retain 85% of the soil. ❑ If 85% or more of soil, by weight, passes the U.S. Standard Sieve No. 200, triangular sediment dike shall not be used due to clogging. ❑ The filter fabric shall meet the material requirements specified in BMP Fact Sheet S -1, Silt Fence. ❑ The internal support for the dike structure shall be 6 gauge 6" x 6" wire mesh folded into triangular form eighteen (18) inches on each side. ❑ Filter material shall lap over ends six (6) inches to cover dike -to -dike junction; each junction shall be secured by shoat rings. ❑ Tie -in to the existing grade should be accomplished by (i) embedding the fabric six - inches below the top of ground on the upslope side, (ii) extending the fabric to form a 12 -inch skirt on the upstream slope and covering it with 3 to 5 inches of crushed rock, or (iii) entrenching the base of the triangular dike four - inches below ground. For (ii) above, the skirt and the upslope portion of the triangular dike skeleton should be anchored by metal staples on two-foot centers, driven a minimum of six inches into the ground (except where crossing pavement or exposed limestone) ❑ Sand bags or large rock should be used as ballast inside the triangular dike section to stabilize the dike against the effects of high flows. ❑ Sufficient room for the operation of sediment removal equipment shall be provided between the dike and other obstructions in order to properly remove sediment. ❑ The ends of the dike shall be turned upgrade to prevent bypass of storm water. LIMITATIONS Effects of ponding caused by the dikes should be evaluated for effects on adjacent areas. Triangular sediment filter dikes are not effective for conditions where there are substantial concentrated flows or when they are not constructed along a contour line due to the potential for flow concentration and overtopping. MAINTENTANCE REQUIREMENTS Triangular sediment filter dikes should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). Sediment should be removed when it reaches approximately 6 inches in depth. If the fabric becomes clogged, it should be cleaned or, if necessary, replaced. If structural deficiencies are found, the dike should be immediately repaired or replaced. As with silt fence, integrity of the filter fabric is important to the effectiveness of the dike. Overlap between dike sections must be checked on a regular basis and repaired if deficient. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction - North Central Texas Council of Governments, Section 201.8 Triangular Sediment Filler Dike. 4 -40 LSWM Design Manual for December 2003 Triangular Sediment Filter Dike (D Flow O Flow O /A\ /�q� / \ 7! nched /\ ,/� Open In 4^ 18" / /\\ 78' Fabdc �l'l� -78+ Rock /V / \ Toe-in / i \ 3 6 / TT Pavement Or - i 6" Stabilized Soil- _I IEarth li -,_l FT - _ .111 — ta• 1a^ tr ts° s° Cross Section Of Installation Options 1. Toe -in 6" Min. 2. Fabric Skirt Weighted With Rock 3. Trenched In 4" 6'x6" Welded Geoteztile Wire Mesh Structure Fabric Fabric Skirt (option 2) t2. Anchors Every Two Feel (Option 2) ISWM Design Manual for Construcdon 4-41 December 2003 This page left intentionally blank 4-42 ISWM Design Manual for Construction December 2003 Inlet Protection Applications Perimeter Control Concrete blocks or Other dam device — Slope Protection Sediment Trapping Channel Protection Pavement (it present) Temporary Stabilization Sediment pondmg a s r !h - 1 Gompact� Soil Permanent Stabilization area (1' Mm, 2' Max \ Depth) 1:1 hOu"all Waste Management Inlet ^ Housekeeping Practices Cross Section Targeted Constituents DESCRIPTION G Sediment Inlet protection consists of a variety of methods of intercepting sediment at low point inlets through the use of stone, filler fabric, inlet inserts, and other O Nutrients Toxic materials. This is normally located at the inlet, providing either detention or Materials filtration to reduce sediment and floatable materials in storm water. O Oil &Grease PRIMARY USE C Floatable Materials Inlet protection should be considered a secondary defense in site erosion control due to the limited effectiveness and applicability of the technique. It is p Other Construction normally used in new developments that include new inlets or roads with new Wastes curb inlets or during major repairs to existing roadways. Implementation Inlet protection has limited use in developed areas due to the potential for Requirements flooding, traffic safety, pedestrian safety, and maintenance problems. Inlet 0 Capital Costs protection can reduce sediment in storm sewer systems by serving as a back up system to onsile controls or by reducing sediment loads from controls with 0 Maintenance limited effectiveness. O Training APPLICATIONS Different inlet protection variations are used for different conditions as follows: O Suitability for Slopes >5% ❑ Filter barrier protection (similar to a silt fence barrier around the inlet) is Legend appropriate when the drainage area is less than one acre and the basin slope is less than five (5) percent. This type of protection is not 0 Significant Impact applicable in paved areas. G Medium Impact ❑ Block and gravel (crushed stone, recycled concrete is also appropriate) protection is used when flows exceed 0.5 c.f.s. and it is necessary to O Low Impact allow for overtopping to prevent flooding. ? Unknown or ❑ Excavated impoundment protection around a drop inlet may be used for Questionable Impact protection against sediment entering a storm drain system. With this Varies method, it is necessary to install weep holes to allow the impoundment to drain completely. The impoundment shall be sized such that the volume S -4 of excavation shall be equal to 1800 to 3600 cubic feel per acre of disturbed area entering the inlet for full effectiveness. 0 North Central Texas Council of Governments December 2003 Inlet Protection I DESIGN CRITERIA O Special caution must be exercised when installing inlet protection on publicly traveled streets or in developed areas. Ensure that inlet protection is properly designed, installed and maintained to avoid flooding of the roadway or adjacent properties and structures. ❑ Filter fabric protection shall be designed and maintained in a manner similar to silt fence. • Where applicable, filter fabric, posts, and wire backing shall meet the material requirements specified in BMP Fact Sheet S -1, Silt Fence. • Filter gravel shall be 3/4 inch (Block and Gravel Protection) or 1 -1/2 to 2 inch (Excavated Impoundment Protection) washed stone containing no fines. Angular shaped stone is preferable to rounded shapes. ❑ Concrete blocks shall be standard 8" x 8" x 16" concrete masonry units. ❑ Maximum depth of flow shall be eight (8) inches or less. ❑ Positive drainage is critical in the design of inlet protection. If overflow is not provided for at the inlet, excess flows shall be routed through established swales, streets, or other watercourses to minimize damage due to flooding. ❑ Filter Barrier Protection Silt Fence shall consist of nylon geotextile supported by wire mesh, W1.4 X WI A, and galvanized steel posts set a minimum of 1 foot depth and spaced not more than 6 feet on center. A 6 inch wide trench is to be cut 6 inches deep at the toe of the fence to allow the fabric to be laid below the surface and backfilled with compacted earth or gravel. This entrenchment prevents any bypass of runoff under the fence. ❑ Block and Gravel Protection (Curb and Drop Inlets) Concrete blocks are to be placed on their sides in a single row around the perimeter of the inlet, with ends abutting. Openings in the blocks should face outward, not upward. %" x 1/2" wire mesh shall then be placed over the outside face of the blocks covering the holes. Filter stone shall then be piled against the wire mesh to the top of the blocks with the base of the stone being a minimum of 18 inches from the blocks. Alternatively, where loose stone is a concern (streets, etc.), the filter stone mayb be placed in appropriately sized geotextile fabric bags. Periodically, when the stone filter becomes clogged, the stone must be removed and cleaned in a proper manner or replaced with new stone and piled back against the wire mesh. ❑ Excavated Impoundment Protection An excavated impoundment shall be sized to provide a storage volume of between 1800 and 3600 cubic feet per acre of disturbed area. The trap shall have a minimum depth of one foot and a maximum depth of 2 feet as measured from the top of the inlet and shall have sideslopes of 2:1 or flatter. Weep holes are to be installed in the inlet walls to allow for the complete dewatering of the the trap. When the storage capacity of the impoundment has been reduced by one -half, the silt shall be removed and disposed in a proper manner. ❑ Inlet inserts are commercially available to remove sediment, constituents (pollutants) adsorbed to sediment, and oil and grease. Maintenance is required to removesediment and debris that could clog the filters. Inlet inserts must have a bypass function to prevent flooding from clogging or high flows. LIMITATIONS Special caution must be exercised when installing inlet protection on publicly traveled streets or in developed areas. Ensure that inlet protection is properly designed, installed and maintained to avoid flooding of the roadway or adjacent properties and structures. Inlet protection is only viable at low point inlets. Inlets that are on a slope cannot be effectively protected because storm water will bypass the inlet and continue downstream, causing an overload condition at inlets downstream. ISWM Design Manual for Construction +43 4.44 ISWM DeAM Manual for Conmucdon December 2003 II Inlet Protection II MAINTENANCE REQUIREMENTS Inlet protection should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). When silt fence is used and the fabric becomes clogged, it should be cleaned or, if necessary, replaced. Also, sediment should be removed when it reaches approximately one -half the height of the inlet protection device. If a sump is used, sediment should be removed when the volume of the basin is reduced by 50%. For systems using filter stone, when the filter stone becomes clogged with sediment, the stones must be pulled away from the inlet and cleaned or replaced. Since cleaning of stone at a construction site may be difficult, an alternative approach would be to use the clogged stone as fill material and put new stone around the inlet. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public 1Afnrks Construction North Central Texas Council of Governments, Section 201.15 Inlet Protection ISWM Design Manual for Co=ucdon 4-45 December 2003 I Inlet Protection - Filter Barrierl 4 -46 Silt Fence Fabric With Wire Mesh Backing PO "x2" Wood Stake r Steel T -post Perspective View Fabric Anchored In 6 "x6" Trench Back- 2 "x2" Wood Stake Filled With Compacted Or Steel T -post 12" Min. I I. Standard Installation Stake 2 "x4" Wood Frame Fabric T Max. i J 1 t' 3' Min. A Min. Elevation Of Stake And Fabric Orientation Detail A Perspective View Drop Inlet With Grate Frame Gather Excess —�-�. — t At Comers Perspective View Specific application: This method of inlet protection is applicable where the inlet drains a relatively flat area (slope no greater than 5%) where the inlet sheet or over -land flows (not to exceed 1 C.F.S.) are typical. The method shall not apply to inlets receiving concentrated flows such as in streets or highway medians. ISWM Design Manual for Construction a A � O T � N may. - St'-vn 04- i' /\ � 11�r FD CD �y°�r�2 �} ��y.S��t1`y ik`�;�1 -•�l'k vim'„ �`i ^-'� D r'�C Y _ ' .+ N 0 0 _ mT �q A m v m 8 W v 8 �@ gox: N L-4 x N I N p 7 C A � O T � N may. - St'-vn 04- i' /\ � 11�r FD CD �y°�r�2 �} ��y.S��t1`y ik`�;�1 -•�l'k vim'„ �`i ^-'� D r'�C Y _ ' .+ N 0 0 _ mT �q A m v m 8 W v 8 December 2003 Inlet Protection - Excavated Impoundment Sldeslope 2:1 Or Flatter -� Inlet Grate A o+t A /Ow \ Fitter Stone For Covering Weep Holes Isometric Plan View :. 2:1 Max. Slope — l' Min, 2' Max 1 -12" to 2" Filter Stone 4Di1"a. For Weep Hole Protection Weep Holes, To Be Filled With Grout Prior To Backfilling Of Storage Area Section A -A ISWM Dedlin Manual for Construction 4-49 4 -50 December 2003 This page left intentionally blank ISWM Dedpl Manual for Coition December 2003 Stone Outlet Sediment Trap Applications Perimeter Control Fate, stone Slope Protection Sediment Trapping Channel Protection Flow ounng Storm Event -9 ,r , } s• uax. � � ��Y f�J•v store go lume a' y" < t 4 Temporary Stabilization Permanent Stabilization Waste Management RIp.Rap Housekeeping Practices Targeted Constituents DESCRIPTION • Sediment A stone outlet sediment trap is a small ponding area formed by placing a stone embankment with an integral stone filler outlet across a drainage Swale for the O Nutrients Toxic purpose of detaining sediment -laden runoff generated by construction activities. Materials The sediment trap detains runoff long enough to allow most of the suspended sediment to settle while still allowing for diffused flow of runoff. O Oil & Grease C Floatable Materials PRIMARY USE A sediment trap is used in situations where flows are concentrated in a drainage p Other Construction Swale or channel. The sediment trap reduces velocities and allows for settling Wastes of sediment while allowing the area behind the trap to de- water. This is normally Implementation used for long term (18 months or less) applications in which a sediment basin is not feasible due to site or construction method restrictions. Requirements APPLICATIONS O Capital Costs Temporary stone outlet sediment traps are installed at locations where p Maintenance concentrated flows require a protected outlet to contain sediment or spread flow prior to discharge. O Training DESIGN CRITERIA • Suitability for Slopes ❑ The maximum drainage area contributing to the trap shall be W acres. For ' 5% larger drainage areas a sediment basin should be used. Legend ❑ The minimum storage volume shall be 1800 cubic feet per acre of disturbed land draining to the device. • Significant Impact ❑ The surface area of the design storage area shall be 1% of the area draining to the device. C Medium Impact ❑ The maximum embankment height shall be 6 feet as measured from the toe of the slope on the downstream side O Low Impact ❑ Minimum width of the embankment at the top shall be 2 feet. 7 Unknown or Li Embankment slope shall be 1.5:1 or flatter. • The embankment shall have a depressed area to serve as the outlet with a Questionable Impact Fe =0.85 minimum width of 4 feet. • A six inch minimum thickness layer of % to 2 inch (1 -% inch nominal) well graded filter stone shall be placed on the face of the embankment. S_5 ❑ The embankment shall be comprised of well graded stone with a size range of 6 to 12 inches in diameter. The stone may be enclosed in wire mesh or gabion basket and anchored to the channel bottom to prevent washing away. ❑ The outlet shall be designed to have a minimum freeboard of 6" at design flow' North central Texas Council of Governments December 2003 Stone Outlet Sediment Trap The embankment shall be place on geotextile fabric meeting the following minimum criteria: • Tensile Strength, ASTM D4632 Test Method for Grab Breaking Load and Elongation of Geotextiles, 250 -Ibs • Puncture Rating, ASTM D4833 Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products, 135 -Ibs. • Mullen Burst Rating, ASTM D3786 Standard Test Method for Hydraulic Bursting Strength of Textile Fabrics- Diaphragm Bursting Strength Tester Method, 420 -psi. • Apparent Opening Size, ASTM D4751 Test Method for Determining Apparent Opening Size of a Geotextile, U.S. Sieve No. 20 (max). The geotextile fabric, covered with a layer of stone, shall extend past the base of the embankment on the downstream side a minimum of 2 feet. LIMITATIONS Limited applications due to cost of construction, availability of materials, and the amount of land required Can cause minor upstream flooding, possibly impacting construction operations. MAINTENANCE REQUIREMENTS The stone outlet structure should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) to check for clogging of the void spaces between stones. If the aggregate appears to be silted in such that efficiency is diminished, the stone should be replaced. Deposited sediment shall be removed when the depth of sediment is equal to one -third of the height of the embankment as measured from the original toe of slope to the crest of the outlet, or has reached a depth of one foot, whichever is less. The removed sediment shall be stockpiled or redistributed in areas that are protected from erosion. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.12 Stone Outlet Sediment Trap. ISWM Destgn Manual for Construction 4-51 4 -52 ISWM Dedgn Manual for December 2003 Stone Outlet Sediment Trap r Overfill 6" For 21" Min. Settlement If Fill Is s 4' Min. 6' Max. Fill 3' Min. Slone Or Earth Fill 1:1 Side Filter Fabric Slope Max. View Looking Upstream Natural Ground 2' Min. 1 1/2" Filter Stone S� }� rof ^ifs 8" Min. 6' Max. r K Excavation If Necessary Storage 6.: _s� 2' Min. Filter Fabric 6"-12" Stone Rip -Rap Section ISWM Design Manual for Consuucdon 4-53 4 -54 December 2003 This page left intentionally blank ISWM Design Manual for Conttructlon December 2003 Sediment Basin Applications Perimeter Control High Now outlet, , Emergency Deal n hi h water V mm Spillway Slope Protection _ I max 3 Sediment Trapping _.... n caDam 1 max Earth 1 Max Channel Protection Berm Temporary Stabilization Barns l Permanent Stabilization Waste Management Cross Section Dewatorung Outlet Housekeeping Practices (Perforated fiber shown) Targeted Constituents DESCRIPTION • Sediment A sediment basin is a pond area with a controlled outlet in which sediment - laden runoff is directed to allow settling of suspended sediment from the runoff. v Nutrients I oxic It provides treatment for the runoff as well as detention and controlled release of Materials runoff, minimizing flood impacts downstream. o Oil &Grease PRIMARY USE G Floalable Materials Sediment basins should be used for all sites with adequate open space to locate the basin and where the site topography directs a majority of the site O Other Construction drainage into the basin. For sites with disturbed areas of 10 acres and larger Wastes that are part of a common drainage area, sediment basins are necessary as Implementation either temporary or permanent controls, unless specific site conditions limit their use. Requirements APPLICATIONS • Capital Costs Sediment basins serve as treatment devices which can be used on a variety of p Maintenance project types. They are normally used in site development projects in which large areas of land are available for the basin, a minor stream or off -line o Training drainage way crosses the site, or a specific water feature is planned for the site. Sediment basins are highly effective at reducing sediment and other pollutants 0 Suitability for Slopes for design storm conditions. Sediment basins are typically easier to maintain >5% than other structural controls (e.g. silt fences, etc). Legend DESIGN CRITERIA • Significant Impact ❑ Refer to Appendix D of this manual for specific design guidance on temporary sediment basins. G Medium Impact ❑ The iSWM Design Manual for Development/ Redevelopment should be o Low Impact used for guidance on the design of permanent sediment basins ❑ Minimum capacity of the basin shall be the calculated volume of runoff from 7 Unknown or a 2 -year, 24 -hour duration storm event. ❑ Deposited sediment shall be removed when the storage capacity of the Questionable Impact Ff3 -�.90 basin has been reduced by 20 %. ❑ Minimum width of the embankment at the top shall be 8 feet. ❑ Embankment slope shall be 3:1 or flatter. ❑ Maximum embankment height shall be 6 feet as measured from the toe of S -6 slope on the downstream side. Sediment basins with embankments exceeding 6 feet are regulated by the Texas Commission on Environmental Quality and must meet specific requirements for dam safety. North Central Texas Council of Governments ISWM Deslpl Manual for Construction 455 December 2003 I Sediment Basin I The basin outlet shall be designed to accommodate a 25 -year design storm without causing damage to the containment structure. The sediment basin shall have minimum design dewatering time of 36 hours. The basin must be laid out such that the effective flow length of the basin should be at least twice the effective flow width. The outlet of the outfall pipe (barrel) shall be stabilized with riprap or other form of stabilization with design flows and velocities based on 25 -year design storm peak flows. For velocities in excess of 5 feet per second, velocity dissipation measures should be used to reduce outfall velocities. The effectiveness of sediment basins may be increased by using baffles to prevent short- circuiting of flow through the basin. SPECIAL CONSIDERATION Sediment basins must be designed, constructed, and maintained to minimize mosquito breeding habitats by minimizing the creation of standing water. Whenever possible, water should be held less than 72 hours. LIMITATIONS Sediment basins can be rather large depending on site conditions, requiring the use of expensive development area and comprehensive planning for construction phasing prior to implementation. Storm events which exceed the design storm event can cause damage to the spillway structure of the basin and may impact downstream concerns. MAINTENANCE REQUIREMENTS Sediment basins should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A) to check for damage and to insure that obstructions are not diminishing the effectiveness of the structure. Sediment shall be removed and the basin shall be regraded to its original dimensions at such point that the capacity of the impoundment has been reduced to 20% of its original storage capacity. The removed sediment shall be stockpiled or redistributed in areas that are protected by erosion and sediment controls. SPECIFICATION No specification for construction of this item is currently available in the Standard Specifications for Public Works Construction - North Central Texas Council of Governments. ISWM Dedpl Manual for Construction December 2003 Sediment Basin High Flo Outlet Emergency Sp l lway Elevat on ; +. _ Design High Water_ _. 7_� 1 Ma x. V Design Capacity [t Ma mpacted th Berm Anchor Block Dewalerirg Outlet Cross Section Note: Excavated Area For Do Not Locale Emergency Storage As Necessary, Emergency Spillway Shape May Vary Spillway On Earth Benn l '? Slalhdlz Lion -Rip Rap, Mailings Or Other Acceptable Matenal Energy Dissapation -', Concrete Blocks Dewateni,g - -- �. i. Outlet Outfall Earth Berm Plan View ISWM Design Manual for Ca shwdon +57 4 -58 December 2003 This page left intentionally blank ISWM Design Manual for Construction December 2003 Check Dams Applications Perimeter Control Slope Protection F Point B should be above Point A INy ow _ 18' to � Sediment Trapping 36. A Channel Protection Temporary Stabilization Section Permanent Stabilization Waste Management Spacing Housekeeping Practices Targeted Constituents DESCRIPTION c Sediment Check dams are small barriers consisting of rock, sand bag or earth berms placed across a drainage swale or ditch. They reduce the velocity of small u Nutrients Toxic concentrated flows, provide a limited barrier for sediment and help disperse Materials concentrated flows, reducing potential erosion. o Oil &Grease PRIMARY USE G Floalable Materials Check dams are used for long drainage swales or ditches to reduce erosive velocities. They are typically used in conjunction with other channel protection o Other Construction techniques such as vegetation lining and turf reinforcement mats. Check dams Wastes provide limited treatment to sediment -laden flows. They are more useful in Implementation reducing flow to acceptable levels for other techniques. Requirements APPLICATIONS G Capital Costs Check dams are typically used early in construction in swales for long linear projects such as roadways. They can also be used in short swales with a steep 0 Maintenance slope to reduce unacceptable velocities. Check dams shall not be used in live stream channels o Training DESIGN CRITERIA G Suitability for Slopes > ❑ Check dams should be placed at a distance and height to allow small pools 5% to form between each one. Typically, dam height should be between 18" Legend and 36 ". Dams should be spaced such that the top of the downstream dam should be at the same elevation as the toe of the upstream dam. • Significant Impact ❑ Major flows (greater than 2 year design storm) must pass the check dam without causing excessive upstream flooding. G Medium Impact ❑ Check dams should be used in conjunction with other sediment reduction o Low Impact techniques prior to releasing flow offsite. ❑ Use geotexlile filter fabric under check dams exceeding 18 inches in height. 7 Unknown or The fabric shall meet the material specified for the Stone Outlet Sediment Trap, S -5. Questionable Impact Fe =0.40 Rock Check Dams ❑ Stone shall be well graded with size range from 1 -1/2 to 3 -1/2 inches in S_7 diameter depending on expected flows. ❑ Rock check dams should be triangular in cross section with side slopes of 1:1 or flatter on the upstream side and 2:1 or flatter on the downstream side. 0 North Central Texas Council of Governments ISWM Design Manual for C.atsowdon 459 December 2103 II Check Dams Sand Bag Dams ❑ Sand bag check dams should have a maximum flow through rate of 0.1 cfs per square foot of surface with a minimum top width of 16 inches and bottom width of 48 inches. Bags should be filled with coarse sand, pea gravel, or filter stone that is clean and free of deleterious material. ❑ Bag length shall be 24- inches to 30- inches, width shall be 16- inches to 18- inches and thickness shall be 6- inches to 8- inches and having an approximate weight of 40- pounds. ❑ Bag material shall be polypropylene, polyethylene, polyamide or cotton burlap woven fabric, minimum unit weight 4- ounces -per- square -yard, Mullen burst strength exceeding 300 -psi as determined by ASTM D3786 Standard Test Method for Hydraulic Bursting Strength_ of Textile Fabrics - Diaphragm Bursting Strength Tester Method, and ultraviolet stability exceeding 70- percent. ❑ PVC pipes may be installed through the sand bag dam near the top to allow for controlled flow through the dam. Pipe should be schedule 40 or heavier polyvinyl chloride (PVC) having a nominal internal diameter of 4 inches. LIMITATIONS Minor ponding will occur upstream of the check dams. For heavy flows or high velocity flows, extensive maintenance or replacement of the dams will be required. Care must be used when taking out rock check dams in order to remove as much rock as possible. Loose rock can create an extreme hazard during mowing operations once the area has been stabilized. MAINTENANCE REQUIREMENTS Check dams should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). Silt must be removed when it reaches approximately 1/3 the height of the dam or 12 ", whichever is less. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.9 Rock Dam and Item 201.11 Sand Bag Dam. 4-60 ISWM Design Manual for Conswcdon December 2003 I Check Dams View Looking Upstream 12" (150mm) / /,` 'ram >• Qo�000a A/W �o��'o°� 24 "(0.8m) NOTE: Key stone into channel banks and "� /��, �� extend it beyond the abutments a minimum of 18" (0.5m) to prevent A flow around dam. Section A - A FLOW i 8'(2.dm)'\ Spacing Between Check Dams 'L'= the distance such that poinls'A' and 'B' are of equal elevation. ISWM Design Manual for Comtrucdon December 2003 This page left intentionally blank 461 4-62 ISWM Design Manual for Construction O Vx, X\jA, /A� �V7/ ,— POINT'A' — POINT'B' x� /� Source: Stormwater Management Manual for Western Washington. ISWM Design Manual for Comtrucdon December 2003 This page left intentionally blank 461 4-62 ISWM Design Manual for Construction December 2003 Temporary Sediment Tank Applications Perimeter Control Access Way -"'"" Optional Baffle Slope Protection [Cutaway View) u "�: Sediment Trapping Channel Protection Storage Zeal ;,. Outlet Temporary Stabilization ^ � Inlet '` Permanent Stabilization Filter Fabric Waste Management (Optional) Housekeeping Practices Targeted Constituents DESCRIPTION G Sediment A temporary sediment lank (TST) is a large lank used to hold sediment -laden water to provide for sedimentation and filtration. For smaller applications, 55- o Nutrients Toxic gallon drums or other watertight container can be used for storage. Water is Materials pumped into the tank where it is detained. If desired an outlet with a geofabric filter can be provided to release the flow after a period of detention. O Oil & Grease PRIMARY USE O Floatable Materials A TST is typically used at construction sites in urban areas where conventional o Other Construction methods of sediment removal (e. g., sediment traps, and sediment basins) are Wastes not practical. Implementation APPLICATIONS Requirements Applications for a TST include utility construction in confined areas (such as a Capital Costs business district or large developed area) or localized construction in which other BMPs are not required such as small, depressed construction areas (tank 0 Maintenance farms). This includes pumpage from excavation in heavily developed areas, such as a central business district, with flows due to groundwater or runoff o Training entering the trench or excavated area. o Suitability for Slopes DESIGN CRITERIA ' 5% ❑ A TST can be used as either a sedimentation or filtration device. If an oil Legend sheen is present in the runoff, additional treatment will be required before release of runoff. • Significant Impact ❑ For use as a small scale sedimentation basin, de- watering discharge is directed into the TST to a level below the tank midpoint and held for a G Medium Impact minimum of 2 hours to allow settlement of a majority of the suspended particles. The tank should be designed for a controlled release when the o Low Impact contents of the tank reach a level higher than the midpoint. When sediment Unknown or occupies 1/3 the capacity of the TST, it should be removed from the tank. ❑ As a filtration device, a TST is used for collecting de- watering discharge and Questionable Impact Fe =0.70 passing it through a filtered opening at the outlet of the tank to reduce suspended sediment volume. The filter opening in the TST should have an Apparent Opening Size (AOS) (see Sill Fence BMP) of 70 or smaller. S-8 .01, North Central Texas Council of Governments ISWM Deapr Manual for Construction December 2003 Temporary Sediment Tank LIMITATIONS This is a specialized technique for the situations listed. It is not cost effective for normal sediment removal conditions. The use of a temporary sediment tank is limited by the capacity of the tank, the time required for settlement of suspended material, and disposal of the water and the sediment. MAINTENANCE REQUIREMENTS Sediment tanks should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). The tank should be cleaned out when it becomes 1/3 full of sediment. SPECIFICATION No specification for construction of this item is currently available in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments. 4-64 Deftn Manual for Construction December 2003 Stabilized Construction Entrance Applications Perimeter Control / .—Do i t Avg. Tract Depth Slope Protection Min. Depth of Entrance Sediment Trapping Channel Protection to v� 'laoi 2eC onslru;:boh Temporary Stabilizahon a Erlranaa Wiclh Permanent Stabilization Qb' 200 feet 20 feet Waste Management - Filk?^ Faa *IC Housekeeping Practices > 5 Acres Targeted Constituents DESCRIPTION C Sediment A stahilized r_.onstmr_.tion entranr-.e consists of a pad ronsisting of rrushed stone, recycled concrete or other rock like material on top of geotextile filter O Nutrients Toxic cloth to facilitate the removal of sediment and other debris from construction Materials equipment prior to exiting the construction site. This directly addresses the problem of silt and mud deposition in roadways used for construction site o Oil & Grease access. For added effectiveness, a wash rack area can be incorporated into o Floatable Materials the design to further reduce sediment tracking (See Wheel Wash, Fact Sheet S- 10). o Other Construction Wastes PRIMARY USE Implementation Stabilized construction entrances are used primarily for sites in which significant truck traffic occurs on a daily basis. It reduces the need to remove sediment Requirements from streets. If used properly, it also directs the majority of traffic to a single • Capital Costs location, reducing the number and quantity of disturbed areas on the site and providing protection for other structural controls through traffic control. p Maintenance APPLICATIONS o Training Stabilized construction entrances are a required part of the erosion control plan for all site developments larger than one acre and a recommended practice for O Suitability for Slopes all construction sites. If possible, controlled entrances should be incorporated > 5 into small lot construction due to the large percentage of disturbed area on the Legend site and the high potential for offsite tracking of silt and mud. • Significant Impact DESIGN CRITERIA ❑ Stabilized construction entrances are to be constructed such that drainage G Medium Impact across the entrance is directed to a controlled, stabilized outlet on site with provisions for storage, proper filtration, and removal of wash water. O Low Impact • The entrance must be sloped away from the paved surface so that storm � Unknown or water is not allowed to leave the site onto roadways. • Minimum width of entrance shall be 15 feet. Questionable Impact Fe =NIA ❑ Stone shall be placed in a layer of at least 12- inches thickness. The stone shall be a minimum of 3 to 5 inch coarse aggregate. ❑ Prevent shortcutting of the full length of the construction entrance by S_9 installing barriers as necessary. North Central Texas Council of Governments December 2003 Stabilized Construction Entrance ❑ The geotextile fabric must meet the following minimum criteria: • Tensile Strength, ASTM D4632 Test Method for Grab Breaking Load and Elongation of Geotextiles, 300 -Ibs. • Puncture Strength, ASTM D4833 Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Prodeucts, 120 -Ibs. o Mullen Burst Rating, ASTM D3786 Standard Test Method for Hydraulic Bursting Strength of Textile Fabrics - Diaphragm Bursting Strength Tester Method, 600 -psi. o Apparent Opening Size, ASTM D4751 Test Method for Determining Apparent Opening Size of a Geotextile, U.S. Sieve No. 40 (max). • When necessary, vehicles must be cleaned to remove sediment prior to entrance onto paved roads, streets, or parking lots. When washing is required, it shall be done on a constructed wheel wash facility that drains into an approved sediment trap or sediment basin or other sedimentation /filtration device. • Minimum dimensions for the entrance shall be as follows: LIMITATIONS Selection of the construction entrance location is critical. To be effective, it must be used exclusively. Stabilized entrances are rather expensive considering that it must be installed in combination with one or more other sediment control techniques, but it may be cost effective compared to labor- intensive street cleaning. MAINTENANCE REQUIREMENTS Construction entrances should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). When sediment has substantially clogged the void area between the rocks, the aggregate mat must be washed down or replaced. Periodic re- grading and top dressing with additional stone must be done to keep the efficiency of the entrance from diminishing. If the stabilized construction entrance is not effectively removing sediment from wheels then a wheel wash should be considered. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.10 Stablilized Construction Entrance. ISWM Design Manual for Construction 4-65 4 -66 tSWM Design Manual for Construction Tract Area Avg. Tract Depth Min. Width of Entrance Min. Depth of Entrance < 1 Acre 100 feet 15 feet 20 feet < 5 Acres 200 feet 20 feet 50 feet > 5 Acres > 200 feet 25 feet 75 -100 feet LIMITATIONS Selection of the construction entrance location is critical. To be effective, it must be used exclusively. Stabilized entrances are rather expensive considering that it must be installed in combination with one or more other sediment control techniques, but it may be cost effective compared to labor- intensive street cleaning. MAINTENANCE REQUIREMENTS Construction entrances should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). When sediment has substantially clogged the void area between the rocks, the aggregate mat must be washed down or replaced. Periodic re- grading and top dressing with additional stone must be done to keep the efficiency of the entrance from diminishing. If the stabilized construction entrance is not effectively removing sediment from wheels then a wheel wash should be considered. SPECIFICATION Specifications for construction of this item may be found in the Standard Specifications for Public Works Construction — North Central Texas Council of Governments, Section 201.10 Stablilized Construction Entrance. ISWM Design Manual for Construction 4-65 4 -66 tSWM Design Manual for Construction December 2003 Stabilized Construction Entrance I Lenin As Shown On Plans — Grade To Prevent Runoff From Leaving Site 6" _ t I -- E,cs,ing Grade Filter Fabnc J Profile View Length As Shown On Plans Radius =5' Min. Grade To Drain Away From Stabilization And Street Paved Surface Drainage Must Flow `// Away From Entrance Transition To Paved Surface Entrance Must Be Sloped So That Stone Water Is Not Allowed Plan View To Leave The Site And Enter Roadways. Paved Surrace am' iSWM Design Manual for Construcdon 467 December 2003 This page left intentionally blank 4 -68 ISWM Desipt Manual for Camuctlon December 2003 Wheel Wash Applications Perimeter Control Swale Al Slope Protection wean naaor Asphalts tang Sediment Trapping Channel Protection ✓.��'` j,5fabl'=ed Corretvcfon i �l Temporary Stabilization - 7,727- Permanent Stabilization - Flaw TO Sediment Trapplrg Device soh As sediment .,in or stone Waste Management oetiet sedi— Trap Housekeeping Practices Targeted Constituents DESCRIPTION c Sediment The wheel wash is used in coniunction with a stabilized construction entrance to provide an area where truck wheels and undercarriages can be cleaned prior to O Nutrients Toxic traversing the stabilized construction entrance and entering the public road Materials system. A wheel wash may consist of an impervious area or a grate over a swale. Wash water from hand held pressure washers or fixed nozzles is O Oil 88 Grease collected and drained to a sediment - trapping device such as a stone outlet O Floatable Materials sediment trap or sediment basin to provide for removal of sediment prior to discharge. O Other Construction Wastes PRIMARY USE Implementation Wheel washes should be used on large jobs where there is significant truck traffic, on those sites where site conditions cause the stabilized construction Requirements entrance to be overloaded with sediment and become ineffective, and in those c Capital Costs instances where contaminated solids might be present on site. They provide added protection and reduce the need to remove sediment from streets. c Maintenance APPLICATIONS C Training Wheel washes should be considered an ancillary component to the stabilized construction entrance. O Suitability for Slopes > 5% DESIGN CRITERIA Legend ❑ The location should be within the stabilized construction entrance so that the vehicle does not pick up additional sediment load by traversing a Significant Impact disturbed areas. ❑ The size of the wheel wash facility should be sufficient so that all wash G Medium Impact water and sediment is collected and drained to a sediment trapping device such as a sediment basin or stone outlet sediment trap. 0 Low Impact ❑ Suggested designs: ? Unknown or 0 4 -inch thick asphalt pavement on an 8 -inch base of crushed rock graded so that wash water drains to a swale; or Questionable Impact Fe =NIA o grate suitably designed to support construction vehicles installed over a Swale. ❑ The facility should be designed so that it can be cleaned between uses. S -10 LIMITATIONS Sediment trapping BMPs used in conjunction with wheel wash facilities must be carefully designed for the anticipated amount of wash water to be treated. North Central Texas Council of Governments ISWM Design Mammal for Construction 469 December 2003 I Wheel Wash II MAINTENANCE REQUIREMENTS Wheel wash facilities should be inspected regularly (at least as often as required by the TPDES Construction General Permit, Appendix A). The surface of the wheel wash should be cleaned between vehicles as necessary. Sediment that has accumulated in the wash water sedimentation BMP (sediment trap, sediment basin, etc.) must be removed when it reaches a depth of approximately 1/3 the design depth of the device or 12 ", whichever is less. The removed sediment shall be stockpiled or redistributed in areas that are protected from erosion. SPECIFICATION No specification for construction of this item is currently available in the Standard Specifications for Public Works Construction — North Central Texas Council of Govemments. 4-70 ISWM Design Manual for Construction Appendix L TPDES General Permit Number TXR150000 For Construction Activities This Appendix contains a copy of the TPDES General Permit for Construction Activities (2008). You may use this copy for reference if needed if you have any questions about the TXR150000. TCEQ DocketNo. 2007 - 1588 -WO' TE 0 TPDES General Permit No. TXR150000 TEXAS COMMISSION ON ENVIRONMENTAL This is a renewal of TPDES QUALITY General Permit No. TXR150000, P.O. BOX 13087 issued March 5, 2003. Austin, TX '78711 -3087 GENERAL. PERMIT TO DISCHARGE 1ATASTES under provisions of Section 402 of the Clean Water Act and Chapter 26 of the Texas Water Code Construction sites that discharge storm water associated with construction activity located in the state of Texas may discharge to surface water- in the state only according to effluent limitations, monitoring requirements and other conditions set forth in this permit, as well as the rules of the Texas Commission on Environmental Quahty_(TCEQ), the laws of the State of Texas, and other orders of the TCEQ. The issuance of this general permit does not grant to the permittee the right to use private or public property for conveyance of storm water and certain non -storm water discharges along the discharge route. This includes property belonging to but not limited to any individual, partnership, corporation or other entity. Neither does this permit authorize any invasion of personal rights nor any violation of federal, state, or local laws or regulations. It is the responsibility of the permittee to acquire property rights as may be necessaryto use the discharge route.. This permit and the authorization contained herein shall expire at midnight on March 5, 2013... -. EFFECTIVE DATE: March 5, 2008 ISSUED DATE: FEB 15 2000. Taakl For the Comm ssion Construction General Permit TPDES General Permit TXR150000 TPDES GENERAL PERMIT NUMBER TXR150000 RELATING TO STORM WATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITIES Table of Contents Part 1. Flow Chart and Definitions ......................... ............................... ...........................Page 3 Part II. Pen-nit Applicability and Coverage ........... ............................... ........................... Page 10 Part III. Storm Water Pollution Prevention Plans .. ............................... ...........................Page 25 Part IV. Storm Water Runoff from Concrete Batch Plants .................. ...........................Page 37 Part V. Concrete Truck Wash Out Requirements . ............................... ...........................Page 42 Part VI. Retention of Records ................................ ............................... ...........................Page 42 Part VII. Standard Permit Conditions ...................... ............................... ...........................Page 43 PartVIII. Fees ................................................. ............................... ...........................Page 44 Appendix A. Automatic Authorization - Periods of Low Erosion Potential by County .... Page 45 Appendix B. Erosivity Index (EI) Zones in Texas ... ............................... ...........................Page 46 Appendix C. Isoerodent Map ................................... ............................... ...........................Page 47 Appendix D. Erosivity Indices for EI Zones in Texas ............................ ...........................Page 48 Attachment 1. Small Construction Site Notice: Low Potential for Erosion .........................Page 49 Attachment 2. Small Construction Site Notice ........... ............................... ...........................Page 50 Attaclunent 3. Large Construction Site Notice: "Secondary Operator" Notice ...................Page 51 Attachment 4. Large Construction Site Notice: "Primary Operator" Notice ....................... Page 52 Page 2 Construction General Permit Part I. Flow Chart and Definitions TPDES General Permit TXR150000 Section A. Flow Chart to Determine Whether Coverage is Required How much land will bt disturbed? (*I) 1 acre / 1 or inore acres NO Do you rneec the t L,s tl +ill � or rnore definition of acres lie disturbed? operatorT' (`) �� (, 11 Permit Coveraiye Required • Prepare and lrnplernent SW113 • Post Site Notice Sllbinit Copy o Site Notice ic) MSS# (_)perator Are you a "pr. unary 10 operator`'„ (*J) To detcertraine Me size of'rhe construction prq eeet, use rite si4er of the entire area to be disturbed, and include the sl;;c of the latLger cnnnnor plan ord evelerJ'rpient or sale, ff tlree prerjvci h� part of a lsapgcr project (refer to Part 1 „t3,, ” Dee nitions, " fc ? r air avplr nafion (V "lamer common plait of development at talc' „�. (`?) Re Pr to the defirtitions.fcrr lope: rator, " `!rritrcarY operator, "and "secondary operator" in Prat L, ,Section B. of this permit. �r�s• Pernik C:over:a e Not Reguired Permit Coverugue ELL u.ired • Prepare and Implement SWP3 • Submit NOI to TCBQ • Post NO[ and Site Notice • Submit Copy of Iti OI to M.S4 Operator (*J) To detcertraine Me size of'rhe construction prq eeet, use rite si4er of the entire area to be disturbed, and include the sl;;c of the latLger cnnnnor plan ord evelerJ'rpient or sale, ff tlree prerjvci h� part of a lsapgcr project (refer to Part 1 „t3,, ” Dee nitions, " fc ? r air avplr nafion (V "lamer common plait of development at talc' „�. (`?) Re Pr to the defirtitions.fcrr lope: rator, " `!rritrcarY operator, "and "secondary operator" in Prat L, ,Section B. of this permit. Construction General Permit Section B. Definitions Arid Areas - Areas with an average annual rainfall of 0 to 10 inches. TPDES General Permit TXR150000 Best Management Practices (BMPs) - Schedules of activities, prohibitions of practices, maintenance procedures, structural controls, local ordinances, and other management practices to prevent or reduce the discharge of pollutants. BMPs also include treatment requirements, operating procedures, and practices to control construction site runoff, spills or leaks, waste disposal, or drainage from raw material storage areas. Commencement of Construction - The initial disturbance of soils associated with clearing, grading, or excavation activities, as well as other construction - related activities (e.g., stockpiling of fill material, demolition) Common Plan of Development - A construction activity that is completed in separate stages, separate phases, or in combination with other construction activities. A common plan of development (also known as a "common plan of development or sale ") is identified by the documentation for the construction project that identifies'the scope of the project, and may include plats, blueprints, marketing plans, contracts, building permits, a public notice or hearing, zoning requests, or other similar documentation and activities. A common plan of development does not necessarily include all construction projects within the jurisdiction of a public entity (e.g., a city or university). Construction of roads or, buildings in different parts of the jurisdiction would be considered separate "common plans," with only the interconnected parts of a project being considered part of a "common plan" (e.g., a building and its associated parking lot and driveways, airport runway and associated taxiways, a building complex, etc.). Where discrete construction projects occur within a larger common plan of development or sale but are located' /4 mile or more apart, and the area between the projects is not being disturbed, each individual project can be treated as a separate plan of development or sale, provided that any interconnecting road, pipeline; or utility project that is part of the same "common plan" is not included in the area to be disturbed. Discharge — For the purposes of this permit, the drainage, release, or disposal of pollutants in storm water and certain non -storm water from areas where soil disturbing activities (e.g., clearing, grading, excavation, stockpiling of fill material, and demolition), construction materials or equipment storage or maintenance (e.g., fill piles, borrow area, concrete truck washout, fueling), or other industrial storm water directly related to the construction process (e.g., concrete or asphalt batch plants) are located. Edwards Aquifer - As defined under Texas Administrative Code § 213.3 of this title (relating to the Edwards Aquifer), that portion of an arcuate belt of porous, water - bearing, predominantly carbonate rocks known as the Edwards and Associated Limestones in the Balcones Fault Zone trending from west to east to northeast in Kinney, Uvalde, Medina, Bexar, Comal, Hays, Travis, and Williamson Counties; and composed of the Salmon Peak Limestone, McKnight Formation, West Nueces Formation, Devil's River Limestone, Person Formation, Kainer Formation, Edwards Formation, and Georgetown Formation. The permeable aquifer units generally overlie the less - permeable Glen Rose Formation to the south, overlie the less - permeable Comanche Peak and Walnut Formations north of the Colorado River, and underlie the less - permeable Del Rio Clay regionally. Edwards Aquifer Recharge Zone - Generally, that area where the stratigraphic units constituting the Edwards Aquifer crop out, including the outcrops of other geologic formations in proximity to the Edwards Aquifer, where caves, sinkholes, faults, fractures, or other permeable features would create a potential for recharge of surface waters into the Edwards Aquifer. The recharge zone is identified as that area designated Page 4 Construction General Permit TPDES General Permit TXR150000 as such on official maps located in the offices of the Texas Commission on Environrriental Quality and the appropriate regional office. The Edwards Aquifer Map Viewer, located at littp : / /w",,A,.tceq.state.tX.Lts /compliance /fielcl ops /eapp%mapdisclaimer.html. can be used to determine where the recharge zone is located. Edwards Aquifer Contributing Zone - The area or watershed where runoff from precipitation flows downgradient to the recharge zone of the Edwards Aquifer. The contributing zone is located upstream (upgradient) and generally north and northwest of the recharge zone for the following counties: all areas within Kinney County, except the area within the watershed draining to Segment 2304 of the Rio Grande Basin; all areas within Uvalde, Medina, Bexar, and Corral Counties: all areas within Hays and Travis Counties, except the area within the watersheds draining to the Colorado River above a point 1.3 miles upstream from Tom Miller Dam, Lake Austin at the confluence of Barrow Brook Cove, Segment 140' ) of the Colorado River Basin; and all areas within Williamson County, except the area within the watersheds draining to the Lampasas River above the dam at Stillhouse Hollow reservoir, Segment 1216 of the Brazos River Basin. The contributing zone is illustrated on the Edwards Aquifer map viewer at littp: / /www.teeci.,,tate.tx.us /compliance /fielcl ops /eal)l)/hnapdisclaiizier.html. Facility or Activity — For the purpose of this permit, a construction site or construction support activity that is regulated under this general permit., including all contiguous land and fixtures (e.g., ponds and materials stockpiles), structures, or appurtances used at a construction site or industrial site described by this general permit. Final Stabilization - A construction site status where any of the following conditions are met: (a) All soil disturbing activities at the site have been completed and a uniform (i.e., evenly distributed, without large bare areas) peremlial vegetative cover with a density of at least 70% of the native background vegetative cover for the area has been established on all unpaved areas and areas not covered by permanent structures, or equivalent permanent stabilization measures (such as the use of riprap, gabions, or geotextiles) have been employed. (b) For individual lots in a residential construction site by either: (1) the homebuilder completing final stabilization as specified in condition (a) above; or (2) the homebuilder establishing temporary stabilization for an individual lot prior to the time of transfer of the ownership of the home to the buyer and after informing the homeowner of the need for, and benefits of, final stabilization. If temporary stabilization is not feasible, then the homebuilder may fulfill this requirement by retaining perimeter controls or other best management practices, and informing the homeowner of the need for removal of temporary controls and the establislmlent of final stabilization. (Q For construction activities on land used for agricultural purposes (e.g. pipelines across crop or range land), final stabilization may be accomplished by returning the disturbed land to its preconstruction agricultural use. Areas disturbed that were not previously used for agricultural activities, such as buffer strips immediately adjacent to surface water and areas Page 5 Construction General Permit TPDES General Permit TXR150000 that are not being returned to their preconstruction agricultural use must m final meet the stabilization conditions of condition (a) above. (d) In arid, semi -arid, and drought - stricken areas only, all soil disturbing activities at the site have been completed and both of the following criteria have been met: (1) Temporary erosion control pleasures (e.g., degradable rolled erosion control product) are selected, designed, and installed along with an appropriate seed base to provide erosion control for at least three years without active maintenance by the operator, and (2) The temporary erosion control measures are selected, designed, and installed to achieve 70 percent vegetative coverage within three years. Hyperehlorination of Waterlines —Treatment of potable water lines or tanks with chlorine for disinfection purposes, typically following repair or partial replacement of the waterline or tank, and subsequently flushing the contents. Indian Country Land — (from 40 CFR 122.2) (1) all land within the limits of any Indian reservation under the jurisdiction of the United States government, notwithstanding the issuance of any patent, and, including rights -of -way running through the reservation; (2) all dependent Indian communities with the borders of the United States whether within the originally or subsequently acquired territory thereof, and whether within or without the limits of a state; and (3) all Indian allotments, the Indian titles to which have not been extinguished, including rights-of-way ruining through the same. Indian Tribe - (from 40 CFR 122.2) any Indian Tribe, band, group, or community recognized by the Secretary of the Interior and exercising governmental authority over a. Federal Indian Reservation. Large Construction Activity - Construction activities including clearing, grading, and excavating that result in land disturbance of equal to or greater than five (5) acres of land. Large construction activity also includes the disturbance of less than five (5) acres of total land area that is part of a larger common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than five (5) acres of land. Large construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the site (e.g., the routine grading of existing dirt roads, asphalt overlays of existing roads, the routine clearing of existing right -of -ways, and similar maintenance activities.) Municipal Separate Storm Sewer System (MS4) - A separate storm sewer system owned or operated by the United States, a state, city, town, county, district, association, or other public body (created by or pursuant to state law) having jurisdiction over the disposal of sewage, industrial wastes, storm water, or other wastes, including special districts under state law such as a sewer district, flood control or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, that discharges to surface water in the state. Notice of Change (NOC) — Written notification to the executive director from a discharger authorized under this permit, providing changes to information that was previously provided to the agency in a notice of intent form. Page 6 Construction General Permit TPDES General Permit TXR150000 Notice of Intent (NOI) - A written submission to the executive director from an applicant requesting coverage under this general permit. Notice of Termination (NOT) - A written submission to the executive director from a discharger authorized under a general permit requesting termination of coverage. Operator - The person or persons associated with a large or small construction activity that is either a primary or secondary operator as defined below: Primary Operator — the person or persons associated with a large or small construction activity that meets either of the following two criteria: (a) the person or persons have operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications; or (b) the person or persons have day -to -day operational control of those activities at a construction site that are necessary to ensure compliance with a storm water pollution prevention plan (S WP3) for the site or other permit conditions (e.g., they are authorized to direct workers at a site to carry out activities required by the SWP3 or comply with other permit conditions). Secondary Operator — The person whose operational control is limited to the employment of other operators or to the ability to approve or disapprove changes to plans and specifications. A secondary operator is also defined as a primary operator and must comply with the permit requirements for primary operators if there are no other operators at the construction site. Outfall - For the purpose of this permit, a point source at the point where storm water runoff associated with construction activity discharges to surface water in the state and does not include open conveyances connecting two municipal separate storm sewers, or pipes, tunnels, or other conveyances that connect segments of the same stream or other water of the U.S. and are used to convey waters of the U.S. Permittee - An operator authorized under this general permit. The authorization may be gained through submission of a notice of intent, by waiver, or by meeting the requirements for automatic coverage to discharge storm water runoff and certain non -storm water discharges. Point Source — (from 40 CFR § 122.2.) Any discernible, confined, and discrete conveyance, including but not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock concentrated animal feeding operation, landfill leachate collection system, vessel or other floating craft from which pollutants are, or may be, discharged. This term does not include return flows from irrigated agriculture or agricultural storm water runoff. Pollutant - Dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, filter backwash, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into any surface water in the state. The term "pollutant" does not include tail water or runoff water from irrigation or rainwater runoff from cultivated or uncultivated rangeland, pastureland, and farmland. For the purpose of this permit, term "pollutant" includes sediment. Page 7 Construction General Permit TPDES General Permit TXR150000 Pollution - (from Texas Water Code §26.001(14)) The alteration of the physical, thermal, chemical. or biological quality of, or the contamination of, any surface water in the state that renders the water harmful, detrimental, or injurious to humans, animal life, vegetation, or property or to public health, safety, or welfare, or impairs the usefulness or the public enjoyment of the water for any lawful or reasonable purpose. Rainfall Erosivity Factor (R factor) - the total annual erosive potential that is due to climatic effects, and is part of the Revised Universal Soil Loss Equation (RUSLE). Semiarid Areas - areas with an average annual rainfall of 10 to 20 inches Separate Storm Sewer System - A conveyance or system of conveyances (including roads with drainage systems, streets, catch basins, curbs, gutters, ditches, man -made channels, or storm drains), designed or used for collecting or conveying storm water; that is not a combined sewer, and that is not part of a publicly owned treatment works (POTW). Small Construction Activity - Construction activities including clearing, grading, and excavating that result in land disturbance of equal to or greater than one (1) acre and less than five (5) acres of land. Small construction activity also includes the disturbance of less than one (1) acre of total land area that is part of a larger common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than one (1) and less than five (5) acres of land. Small construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the site (e.g., the routine grading of existing dirt roads, asphalt overlays of existing roads, the routine clearing of existing right -of -ways, and similar maintenance activities.) Storm Water (or Storm Water Runoff) - Rainfall runoff, snow melt runoff, and surface runoff and drainage. Storm Water Associated with Construction Activity - Storm water runoff from a construction activity where soil disturbing activities (including clearing, grading, excavating) result in the disturbance of one (1) or more acres of total land area, or are part of a larger common plan of development or sale that will result in disturbance of one (1) or more acres of total land area. Structural Control (or Practice) - A pollution prevention practice that requires the construction of a device, or the use of a device, to capture or prevent pollution in storm water runoff. Structural controls and practices may include but are not limited to: silt fences, earthen dikes, drainage swales, sediment traps, check dams, subsurface drains, storm drain inlet protection, rock outlet protection, reinforced soil retaining systems, gabions, and temporary or permanent sediment basins. Surface Water in the State - Lakes, bays, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, wetlands, marshes, inlets, canals, the Gulf of Mexico inside the territorial limits of the state (from the mean high water mark (MHWM) out 10.36 miles into the Gulf), and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, navigable or nonnavigable, and including the beds and banks of all water - courses and bodies of surface water, that are wholly or partially inside or bordering the state or subj ect to the jurisdiction of the state; except that waters in treatment systems which are authorized by state or federal law, regulation, or permit, and which are created for the purpose of waste treatment are not considered to be water in the state. Construction General Permit TPDES General Permit TXR 150000 Temporary Stabilization - A condition where exposed soils or disturbed areas are provided a protective cover or other structural control to prevent the migration of pollutants. Temporary stabilization may include temporary seeding, geotextiles_. mulches_. and other techniques to reduce or eliminate erosion until either permanent stabilization can be achieved or until further construction activities take place. Waters of the United States - (from 40 CFR, Part 122. Section 2) Waters of the United States or waters of the U.S. means: (a) all waters which are currently used, were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subj ect to the ebb and flow of the tide; (b) all interstate waters, including interstate wetlands; (c) all other waters such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats, wetlands, sloughs, prairie potholes. wet meadows, playa lakes, or natural ponds that the use, degradation, or destruction of which would affect or could affect interstate or foreign commerce including any such waters: (1) which are or could be used by interstate or foreign travelers for recreational or other purposes; (2) from which fish or shellfish are or could be taken and sold in interstate or foreign commerce; or (3) which are used or could be used for industrial purposes by industries in interstate commerce; (d) all impoundments of waters otherwise defined as waters of the United States under this definition; (e) tributaries of waters identified in paragraphs (a) through (d) of this definition; (f) the territorial sea; and (g) wetlands adjacent to waters (other than waters that are themselves wetlands) identified in paragraphs (a) through (f) of this definition. Waste treatment systems, including treatment ponds or lagoons designed to meet the requirements of CWA (other than cooling ponds as defined in 40 CFR '4231. 11 (m) which also meet the criteria of this definition) are not waters of the United States. This exclusion applies only to mamnade bodies of water which neither were originally created in waters of the United States (such as disposal area in wetlands) nor resulted from the impoundment of waters of the United States. Waters of the United States do not include prior converted cropland. Notwithstanding the determination of an area =s status as prior converted cropland by any other federal agency. for the purposes of the Clean Water Act, the final authority regarding Clean Water Act jurisdiction remains with EPA. Page 9 Construction General Permit TPDES General Permit TXR150000 Part II. Permit Applicability and Coverage Section A. Discharges Eligible for Authorization Storm Water Associated with Construction Activity Discharges of storm water runoff from small and large construction activities may be authorized under this general permit. 2. Discharges of Storm Water Associated with Construction Support Activities Examples of construction support activities include, but are not limited to, concrete batch plants, rocl: crushers, asphalt batch plants, equipment staging areas, material storage yards, material borrow areas, and excavated material disposal areas. Discharges of storm water runoff from construction support activities may be authorized under this general permit, provided that the following conditions are met: (a) the activities are located within one (1) -mile from the boundary of the permitted construction site and directly support the construction activity: (b) a storm water pollution prevention plan is developed according to the provisions of this general permit and includes appropriate controls and measures to reduce erosion and discharge of pollutants in storm water runoff from the construction support activities; and (c) the construction support activities either do not operate beyond the completion date of the construction activity or are authorized under separate TPDES authorization. Separate TPDES authorization may include the TPDES Multi Sector General Permit, TXR050000 (related to storm water dischargers associated with industrial activity), separate authorization under this general permit if applicable, coverage under an alternative general permit if available, or autlaorization under an individual water quality permit. 3. Non -Storm Water Discharges The following non -storm water discharges from sites authorized under this general permit are also eligible for authorization under this general permit: (a) discharges from fire fighting activities (fire fighting activities do not include washing of trucks, run -off water from training activities, test water from fire suppression systems, and similar activities); (b) uncontaminated fire hydrant flushings (excluding discharges of hyperchlorinated water, unless the water is first dechlorinated and discharges are not expected to adversely affect aquatic life), which include flushings from systems that utilize potable water, surface water, or groundwater that does not contain additional pollutants (uncontaminated fire hydrant flushings do not include systems utilizing reclaimed wastewater as a source water); Page 10 Construction General Permit TPDES General Permit TXR150000 (c) water from the routine external washing of vehicles, the external portion of buildings or structures, and pavement, where detergents and soaps are not used and where spills or leaks of toxic or hazardous materials have not occurred (unless spilled materials have been removed; and if local state, or federal regulations are applicable. the materials are removed according to those regulations), and where the purpose is to remove mud, dirt. or dust: (d) uncontaminated water used to control dust; (e) potable water sources including waterline flushings (excluding discharges of hyperchlorinated water. unless the water is first dechlorinated and discharges are not expected to adversely affect aquatic life); (f) uncontaminated air conditioning condensate ;. (g) uncontaminated ground water or spring water, including foundation or footing drains where flows are not contaminated with industrial materials such as solvents; and (h) lawn watering and similar irrigation drainage. 4. Other Permitted Discharges Any discharge authorized under a separate NPDES, TPDES, or TCEQ permit may be combined with discharges authorized by this general permit, provided those discharges comply with the associated permit. Section B. Concrete 'Truck Wash Out The washout of concrete trucks associated with off-site production facilities may be conducted at regulated construction sites in accordance with the requirements of Part V of this general permit. Section C. Limitations on Permit Coverage Post Construction Discharges. Discharges that occur after construction activities have been completed, and after the construction site and any supporting activity site have undergone final stabilization, are not eligible for coverage under this general permit. Discharges originating from the sites are not authorized under this general permit following the submission of the notice of termination (NOT) for the construction activity. I Prohibition of Non -Storm Water Discharges Except as otherwise provided in Part II.A. of this general permit, only discharges that are composed entirely of storm water associated with construction activity may be authorized under this general permit. Page 11 Construction General Permit TPDES General Permit TXR150000 3. Compliance With Water Quality Standards Discharges to surface water in the state that would cause or contribute to a violation of water quality standards or that would fail to protect and maintain existing designated uses are not eligible for coverage under this general permit. The executive director may require an application for an individual permit or alternative general permit (see Parts II.IL2. and 3.) to authorize discharges to surface water in the state from any activity that is determined to cause a violation of water quality standards or is found to cause, or contribute to, the loss of a designated use. The executive director may also require an application for an individual permit considering factors described in Part I1.H.2. of this general permit. 4. Discharges to Water Quality - Impaired Receiving Waters. New sources or new discharges of the constituents of concern to impaired waters are not authorized by this permit unless otherwise allowable under 30 TAC Chapter 305 and applicable state law. Impaired waters are those that do not meet applicable water quality standards and are listed on the EPA approved Clean Water Act Section 303(4) list. Constituents of concern are those for which the water body is listed as impaired. Discharges of the constituents of concern to impaired water bodies for which there is a total maximum daily load (TMDL) are not eligible for this permit unless they are consistent with the approved TMDL. Permittees must incorporate the limitations, conditions, and requirements applicable to their discharges, including monitoring frequency and reporting required by TCEQ rules, into their storm water pollution prevention plan in order to be eligible for coverage under this general permit. 5. Discharges to the Edwards Aquifer Recharge Zone Discharges cannot be authorized by this general permit where prohibited by 30 Texas Administrative Code (TAC) Chapter 213 (relating to Edwards Aquifer). In addition, commencement of construction (i.e., the initial disturbance of soils associated with clearing, grading, or excavating activities, as well as other construction - related activities such as stockpiling of fill material and demolition) at a site regulated under 30 TAC Chapter 213, may not begin until the appropriate Edwards Aquifer Protection Plan has been approved by the TCEQ's Edwards Aquifer Protection Program. (a) For new discharges located within the Edwards Aquifer Recharge Zone, or within that area upstream from the recharge zone and defined as the Contributing Zone, operators must meet all applicable requirements of, and operate according to, 30 TAC Chapter 213 (Edwards Aquifer Rule) in addition to the provisions and requirements of this general permit. (b) For existing discharges located within the Edwards Aquifer- Recharge Zone, the requirements of the agency- approved Water Pollution Abatement Plan under the Edwards Aquifer Rules are in addition to the requirements of this general permit. BMPs and maintenance schedules for structural storm water controls, for example, may be required as a provision of the rule. All applicable requirements of the Page 12 Construction General Permit TPDES General Permit TXR150000 Edwards Aquifer Rule for reductions of suspended solids in storm water runoff are in addition to the requirements in this general permit for this pollutant. For discharges from large construction activities located on the Edwards Aquifer recharge zone or the Edwards Aquifer contributing zone, applicants must submit a copy of the NOI to the appropriate TCEQ regional office. For discharges from small construction activities located on the Edwards Aquifer recharge zone or the Edwards Aquifer contributing zone, and for discharges from large construction activities by operators not required to submit an NOI tinder this general permit, applicants must submit a copy of the construction site notice to the appropriate TCEQ regional office where required by the Edwards Aquifer Rules at 30 TAC Chapter 213: Counties: Comal, Bexar.. Medina, Uvalde. and Kinney Williamson, Travis, and Hays Contact: TCEQ Water Program Manager San Antonio Regional Office 14250 Judson Rd. San Antonio, Texas (210) 490 -3096 TCEQ Water Program Manager Austin Regional Office 2800 South IH 35, Suite 100 Austin_ Texas 78704 -5712 (512) 339 -2929 Discharges to Specific Watersheds and Neater Quality Areas Discharges otherwise eligible for coverage cannot be authorized by this general permit where prohibited by 30 TAC Chapter 311 (relating to Watershed Protection) for water quality areas and watersheds. Protection of Streams and Watersheds by Other Goverrimental Entities This general permit does not limit the authority or ability of federal, other state, or local governmental entities from placing additional or more stringent requirements on construction activities or discharges from construction activities. For example, this permit does not limit the authority of a home -rule municipality provided by Texas Local Government Code §401.002. Page 13 Construction General Permit TPDES General Permit TXR150000 8. Indian Country Lands Storm water runoff from construction activities occurring on Indian Country lands are not under the authority of the TCEQ and are not eligible for coverage under this general permit. If discharges of storm water require authorization under federal National Pollutant Discharge Elimination System (NPDES) regulations, authority for these discharges must be obtained fi-om the U.S. Environmental Protection Agency (EPA). 9. Oil and Gas Production Storm water runoff' from construction activities associated with the exploration, development. or production of oil or gas or geothermal resources, including transportation of crude oil or natural gas by pipeline. are not tinder the authority of the TCEQ and are not eligible for coverage tender this general permit. If discharges of storm water require authorization under federal NPDES regulations, authority for these discharges must be obtained from the EPA. 10. Storm Water Discharges from Agricultural Activities Storm water discharges from agricultural activities that are not point source discharges of storm water are not subject to TPDES permit requirements. These activities may include clearing and cultivating ground for crops, construction of fences to contain livestock, construction of stock ponds, and other similar agricultural activities. Discharges of storm water runoff associated with the construction of facilities that are subject to TPDES regulations, such as the construction of confined animal feeding operations, would be point sources regulated under this general permit. 11. Other Nothing in Part II of the general permit is intended to negate any person's ability to assert the force ma_jeure (act of God, war, strike, riot, or other catastrophe) defenses found in 30 TAC ' 70.7. Section D. Deadlines for Obtaining Authorization to Discharge Large Construction Activities (a) New Construction - Discharges from sites where the commencement of constnlction occurs on or after the effective date of this general permit must be authorized, either under this general permit or a separate TPDES permit, prior to the commencement of those construction activities. (b) Ongoing Construction - Operators of large construction activities continuing to operate after the effective date of this permit, and authorized under TPDES general permit TXR150000 (issued March 5, 2003), must submit an NOI to renew authorization under this general permit within 90 days of the effective date of this general permit. During this interim period, as a requirement of this TPDES permit, Page 14 Construction General Permit TPDES General Permit TXR 150000 the operator niust continue to meet the conditions and requirements of the previous TPDES permit. 2. Small Construction Activities (a) New Construction - Discharges from sites where the commencement of construction occurs on or after the effective date of this general permit must be authorized, either under this general permit or a separate TPDES permit, prior to the commencement of those construction activities. (b) Ongoing Construction - Discharges from ongoing small construction activities that commenced prior to the effective date of this general permit. and that would not meet the conditions to qualify for termination of this permit as described in Part II.E. of' this general permit, must meet the requirements to be authorized, either under this general permit. or a separate TPDES permit, within 90 days of the effective date of this general permit. During this interim period, as a requirement of this TPDES permit, the operator must continue to meet the conditions and requirements of the previous TPDES permit. Section E. Obtaining Authorization to Discharge Automatic Authorization for Small Construction Activities With Low Potential for Erosion: If all of the following conditions are met, then a small construction activity is determined to occur during periods of low potential for erosion, and a site operator may be automatically authorized under this general permit without being required to develop a storm water pollution prevention plan or submit a notice of intent (NOI): (a) the construction activity occurs in a county listed in Appendix A; (b) the construction activity is initiated and completed, including either final or temporary stabilization of all disturbed areas, within the time frame identified in Appendix A for the location of the construction site; (c) all temporary stabilization is adequately maintained to effectively reduce or prohibit erosion, permanent stabilization activities have been initiated, and a condition of final stabilization is completed no later than 30 days following the end date of the time frame identified in Appendix A for the location of the construction site; (d) the permittee signs a completed construction site notice (Attachment 1 of this general permit), including the certification statement; (e) a signed copy of the construction site notice is posted at the construction site in a location where it is readily available for viewing by the general public, local, state, and federal authorities prior to conuliencing construction activities, and maintained in that location iantil completion of the construction activity Page 15 Construction General Permit TPDES General Permit TXR 150000 (f) a copy of the signed and certified construction site notice is provided to the operator of any municipal separate storm sewer system (MS4) receiving the discharge at least two days prior to commencement of construction activities; (g) any supporting concrete batch plant or asphalt batch plant is separately authorized for discharges of storm water runoff or other non -storm water discharges under an individual TPDES permit, another TPDES general permit, or under an individual TCEQ permit where storm water and non - storm water is disposed of by evaporation or irrigation (discharges are adjacent to water in the state), and (h) any non -storm water discharges are either authorized under a separate permit or authorization, or are not considered to be a wastewater. Part ILG. of this general permit describes how an operator may apply for and obtain a waiver from permitting, for certain small construction activities that occur during a period with a low potential for erosion, where automatic authorization under this section is not available. 2. Automatic Authorization For All Other Small Construction Activities: Operators of small construction activities not described in Part II.E.1. above may he automatically authorized under this general permit, and operators of these sites shall not be required to submit an NOI, provided that they meet all of the following conditions: (a) develop a S WP3 according to the provisions of this general permit, that covers either the entire site or all portions of the site for which the applicant is the operator, and implement that plan prior to commencing construction activities; (b) sign and certify a completed construction site notice (Attachment 2 of this general permit), post the notice at the construction site in a location where it is safely and readily available for viewing by the general public, local, state, and federal authorities, prior to commencing construction, and maintain the notice in that location until completion of the construction activity (for linear construction activities, e.g. pipeline or highway, the site notice must be placed in a publicly accessible location near where construction is actively underway; notice for these linear sites may be relocated, as necessary, along the length of the project, and the notice must be safely and readily available for viewing by the general public; local, state, and federal authorities); and (c) provide a copy of the signed and certified construction site notice to the operator of any municipal separate storm sewer system receiving the discharge at least two days prior to commencement of construction activities. Operators of small construction activities as defined in Part I of this general permit shall not submit an NOI for coverage unless otherwise required by the executive director. As described in Part I (Definitions) of this general permit, large construction activities include those that will disturb less than five (5) acres of land, but that are part of a larger Page 16 Construction General Permit TPDES General Permit TXR150000 common plan of development or sale that will ultimately disturb five (5) or more acres of land. and must meet the requirements of Part II.E.3. below. 3. Authorization for Large Construction Activities: Operators of large construction activities that qualify for coverage under this general permit must meet all of the following conditions: (a) develop a SWP -') according to the provisions of this general permit that covers either the entire site or all portions of the site for which the applicant is the operator. and implement that plan prior to commencing construction activities, (b) primary operators must submit a Notice of Intent (NOI), using a form provided by the executive director, at least seven (7) days prior to commencing construction activities, or if utilizing electronic submittal, prior to commencing construction activities. If an additional primary operator is added after the initial NOI is submitted, the new primary operator must submit an NOI at least seven (7) days before assuming operational control, or if utilizing electronic NOI submittal, prior to assuming operational control. If the primary operator changes after the initial NOI is submitted, the new primary operator must submit a paper NOI or an electronic NOI at least ten (10) days before assuming operational control; (c) all primary operators must also post a copy of the signed NOI at the construction site in a location where it is readily available for viewing by the general public, local, state, and federal authorities prior to commencing construction activities, and must maintain the NOI in that location until completion of the construction activity; (d) all operators of large construction activities must post a site notice in accordance with Part III.D.2. of this permit. The site notice must be located where it is safely and readily available for viewing by the general public, local, state, and federal authorities prior to commencing construction, and must be maintained in that location until completion of the construction activity (for linear construction activities, e.g. pipeline or highway, the site notice must be placed in a publicly accessible location near where construction is actively underway; notice for these linear sites may be relocated, as necessary, along the length of the project, and the notice must be safely and readily available for viewing by the general public; local, state, and federal authorities); and (e) all primary operators must provide a copy of the signed NOI to the operator of any municipal separate storm sewer system (MS4) receiving the discharge and to any secondary operator, at least seven (7) days prior to commencing construction activities, and must list in the SWP3 the names and addresses of all MS4 operators receiving a copy. (f) All persons meeting the definition of "secondary operator" in Part I of this permit are hereby notified that they are regulated under this general permit, but are not required to submit an 1y10I, provided that another operator(s) at the site has submitted an NOI, or is required to submit an NOI and the secondary operator has provided notification Page 17 Construction General Permit TPDES General Permit TXR150000 to the operator(s) of the need to obtain coverage (with records of notification available upon request). Any secondary operator notified under this provision may alternatively submit an NOI under this general permit, may seek coverage under an alternative TPDES individual permit, or may seek coverage under an alternative TPDES general permit if available. 4. Waivers for Small Construction Activities: Part II.G. describes how operators of certain small construction activities may obtain a waiver from coverage. 5. Effective Date of Coverage (a) Operators of small construction activities as described in either Part ILE.1. or IL.E.2. above are authorized immediately following compliance with the applicable conditions of Part II.E.I. or ILE.2. Secondary operators of large construction activities as described in Part II.E.3. above are authorized immediately following compliance with the applicable conditions in Part II.E.3. For activities located in areas regulated by 30 TAC Chapter 213, related to the Edwards Aquifer, this authorization to discharge is separate from the requirements of the operator's responsibilities under that rule. Construction may not commence for sites regulated under 30 TAC Chapter 213 until all applicable requirements of that rule are met. (b) Primary operators of large construction activibes as described in Part II.E.3. above are provisionally authorized seven (7) days from the date that a completed NOT is postmarked for delivery to the TCEQ, unless otherwise notified by the executive director. If electronic submission of the NOI is provided, and unless otherwise notified by the executive director, primary operators are authorized immediately following confirmation of receipt of the NOI by the TCEQ. Authorization is non - provisional when the executive director finds the NOI is administratively complete and an authorization number is issued for the activity. For activities located in areas regulated by 30 TAC Chapter 213, related to the Edwards Aquifer, this authorization to discharge is separate from the requirements of the operator's responsibilities under that rule. Construction may not commence for sites regulated under 30 TAC Chapter 213 until all applicable requirements of that rule are met. (c) Operators are not prohibited from submitting late NOIs or posting late notices to obtain authorization under this general permit. The TCEQ reserves the right to take appropriate enforcement actions for any unpermitted activities that may have occurred between the time construction commenced and authorization was obtained. Page 18 Construction General Permit 6. Notice of Change (NOC) TPDES General Permit TXR 150000 If relevant information provided in the NOI changes, an NOC must be submitted at least 14 days before the change occurs, if possible. Where 14 -day advance notice is not possible, the operator must submit an NOC within 14 days of discovery of the change. If the operator becomes aware that it failed to submit any relevant facts or submitted incorrect information in an NOI, the correct information must be provided to the executive director in an NOC within 14 days after discovery. The NOC shall be submitted on a form provided by the executive director, or by letter if an NOC form is not available. A copy of the NOC must also be provided to the operator of any MS4 receiving the discharge, and a list must be included in the S WP3 that includes the names and addresses of all MS4 operators receiving a copy. Information that may be included on an NOC includes. but is not limited to, the following: the description of the construction project, an increase in the number of acres disturbed (for increases of one or more acres), or the operator name. A transfer of operational control from one operator to another, including a transfer of the ownership of a company, may not be included in an NOC. A transfer of ownership of a company includes changes to the structure of a company, such as changing from a partnership to a corporation or changing corporation types, so that the filing number (or charter number) that is on record with the Texas Secretary of State must be changed. An NOC is not required for notifying TCEQ of a decrease in the number of acres disturbed. This information must be included in the storm water pollution prevention plan (S WP3) and retained on site. 7. Signatory Requirement for NOI Forms, Notice of Termination (NOT) Forms, NOC Letters, and Construction Site Notices NOI forms, NOT forms, NOC letters, and Construction Site Notices that require a signature must be signed according to 30 TAC ' 305.44 (relating to Signatories for Applications). 8. Contents of the NOI The NOI form shall require, at a minimum, the following information: (a) the TPDES CGP authorization number for existing authorizations under this general permit, where the operator submits an NOI to renew coverage within 90 days of the effective date of this general permit; (b) the name, address, and telephone number of the operator filing the NOI for permit coverage; (c) the name (or other identifier), address, county, and latitude /longitude of the construction project or site; (d) the number of acres that will be disturbed by the applicant; Page 19 Construction General Permit TPDES General Permit TXR150000 (e) confirmation that the project or site will not be located on Indian Country lands; (f) confirmation that a SWP3 has been developed, that it will be implemented prior to construction, and that it is compliant with any applicable local sediment and erosion control plans; (g) name of the receiving water(s), (h) the classified segment number for each elassii:red segment that receives discharges from the regulated construction activity (if the discharge is not directly to a classified segment, then the classified segment number of the first classified segment that those discharges reach); and (i) the name of al l surface waters receiving discharges from the regulated construction activity that are on the latest EPA - approved CWA § 303(d) list of impaired waters. Section F. Terminating Coverage Notice of Termination (NOT) Required Each operator that has submitted an NOI for authorization under this general permit must apply to terminate that authorization following the conditions described in this section of the general permit. Authorization must be terminated by submitting a Notice of Termination (NOT) on a form supplied by the executive director. Authorization to discharge under this general permit terminates at midnight on the day the NOT is postmarked for delivery to the TCEQ. If electronic submission of the NOT is provided, authorization to discharge under this permit terminates immediately following confirmation of receipt of the NOT' by the TCEQ. Compliance with the conditions and requirements of this permit is required until an NOT is submitted. The NOT must be submitted to TCEQ, and a copy of the NOT provided to the operator- of any MS4 receiving the discharge (with a list in the SWP3 of the names and addresses of all MS4 operators receiving a copy), within 30 days after any of the following conditions are met: (a) final stabilization has been achieved on all portions of the site that are the responsibility of the permittee; (b) a transfer of operational control has occurred (See Section II.F.4. below); or (c) the operator has obtained alternative authorization under an individual TPDES permit or alternative TPDES general permit. 2. Minimum Contents of the NOT The NOT form shall require, at a minimum, the following information: Page 20 Construction General Permit TPDES General Permit TXR150000 (a) if authorization was granted following submission of an NOt. the permittee's site - specific TPDES authorization number for the construction site: (b) an indication of whether the construction activity is completed or if the permittee is simply no longer an operator at the site; (c) the name, address, and telephone number of the permittee submitting the NOT:. (d) the name (or other identifier), address, county, and latitude /longitude of the construction project or site; and (e) a signed certification that either all storm water discharges requiring authorization under this general permit will no longer occur, or that the applicant to terminate coverage is no longer the operator of the facility or construction site, and that all temporary structural erosion controls have either been removed, will be removed on a schedule defined in the SWP3, or have been transferred to a new operator if the new operator has applied for permit coverage. Erosion controls that are designed to remain in place for an indefinite period, such as mulches and fiber mats, are not required to be removed or scheduled for removal. 3. Termination of Coverage for Small Construction Sites and for Secondary Operators at Large Construction Sites Each operator that has obtained automatic authorization and has not been required to submit an NOI must remove the site notice upon meeting any of the conditions listed below, complete the applicable portion of the site notice related to removal of the site notice, and submit a copy of the completed site notice to the operator of any MS4 receiving the discharge (or provide alternative notification as allowed by the MS4 operator, with documentation of such notification included in the SWP3), within 30 days of meeting any of the following conditions: (a) final stabilization has been achieved on all portions of the site that are the responsibility of the permittee; (b) a transfer of operational control has occurred (See Section IL1.4. below); or (c) the operator has obtained alternative authorization under an individual or general TPDES permit. Authorization to discharge under this general permit terminates inunediately upon removal of the applicable site notice. Compliance with the conditions and requirements of this permit is required until the site notice is removed. 4. Transfer of Operational Control Coverage under this general permit is not transferable. A transfer of operational control includes changes to tlie structure of a company, such as changing from a partnership to a Page 21 Construction General Permit TPDES General Permit TXR150000 corporation, or changing to a different corporation type such that a different filing (or- charter) number is established with the Texas Secretary of State. When the primary operator of a large construction activity changes or operational control is transferred, the original operator must submit a Notice of Termination (NOT) within ten (10) days prior to the date that responsibility for operations terminates, and the new operator must submit an NOI at least ten (10) days prior to the transfer of operational control, in accordance with condition (a) or (b) below. A copy of the NOT must be provided to the operator of any MS4 receiving the discharge in accordance with Section II.F'.1. above. Operators of regulated construction activities who are not required to submit an NOI must remove the original site notice, and the new operator must post the required site notice prior to the transfer of operational control, in accordance with condition (a) or (b) below. A copy of the completed site notice must be provided to the operator of any MS4 receiving the discharge, in accordance with Section ILF.3. above. A transfer of operational control occurs when either of the following criteria is met: (a) Another operator has assumed control over all areas of the site that have not been finally stabilized; and all silt fences and other temporary erosion controls have either been removed, scheduled for removal as defined in the SWP3, or transferred to anew operator, provided that the permitted operator has attempted to notify the new operator in writing of the requirement to obtain permit coverage. Record of this notification (or attempt at notification) shall be retained by the operator in accordance with Part VI of this permit. Erosion controls tliat are designed to remain in place for an indefinite period, such as mulches and fiber mats, are not required to be removed or scheduled for removal. (b) A homebuilder has purchased one or more lots from an operator who obtained coverage under this general permit for a common plan of development or sale. The homebuilder is considered a new operator and shall comply with the requirements listed above, including the development of a SWP3 if necessary. Under these circumstances, the homebuilder is only responsible for compliance with the general permit requirements as they apply to lot(s) it has operational control over, and the original operator remains responsible for common controls or discharges, and must amend its SW113 to remove the lot(s) transferred to the homebuilder. Section G. Waivers from Coverage The executive director may waive the otherwise applicable requirements of this general permit for storm water discharges from small construction activities under- the terms and conditions described in this section. Page 22 Construction General Permit TPDES General Permit TXR150000 Waiver Applicability and Coverage Operators of small construction activities may apply for and receive a waiver from the requirements to obtain authorization Linder this general permit, where all of the following conditions are met. This waiver from coverage does not apply to non -storm water discharges. The operator must insure that any non -storm water discharges are either authorized under a separate permit or authorization. or are not considered to be a wastewater. (a) the calculated rainfall erosivity (R) factor for the entire period of the construction project is less than five (5); (b) the operator submits to the TCEQ a signed waiver certification form, supplied by the executive director. certifying that the construction activity will commence and be completed within a period when the value of the calculated rainfall erosivity R factor is less than five (5); and (c) the waiver certification form is postmarked for delivery to the TCEQ at least two (2) days before construction activity begins. 2. Steps to Obtaining a Waiver The construction site operator may calculate the R factor to request a waiver- using the following steps: (a) Estimate the construction start date and the construction end date. The construction end date is the date that final stabilization will be achieved. (b) Find the appropriate Erosivity Index (EI) zone in Appendix B of this permit. (c) Find the EI percentage for the project period by adding the results for each period of the project using the table provided in Appendix D of this permit, in EPA Fact Sheet 2. 1, or in USDA Handbook 703, by subtracting the start value from the end value to find the percent EI for the site. (d) Refer to the Isoerodent Map (Appendix C of this permit) and interpolate the annual isoerodent value for the proposed construction location. (e) Multiply the percent value obtained in Step (c) above by the annual isoerodent value obtained in Step (d). This is the R factor- for the proposed project. If the value is less than 5, then a waiver may be obtained. If the value is five (5) or more, then a waiver may not be obtained, and the operator must obtain coverage under- Part II.E.2. of this permit. Alternatively, the operator may calculate a site - specific R factor- utilizing the following online calculator: http: / /ei.tamti.edu /index.html, or using another available resource. The waiver certification form is not required to be posted at the small construction site. Page 23 Construction General Permit 3. Effective Date of Waiver TPDES General Permit TXR 150000 Operators of small construction activities are provisionally waived from the otherwise applicable requirements of this general permit two (2) days from the date that a completed waiver certification form is postmarked for delivery to TCEQ. 4. Activities Extending Beyond the Waiver Period If a construction activity extends beyond the approved waiver period due to circumstances beyond the control of the operator, the operator must either: (a) recalculate the rainfall erosivity (R) factor using the original start date and a new projected ending date, and if the R factor is still under five (5), submit a new waiver certification form at least two (2) days before the end of the original waiver period; or (b) obtain authorization under this general permit according to the requirements delineated in either Part II.E.2. or Part I1.E.3. at least two (2) days before the end of the approved waiver- period. Section H. Alternative 'TPDES Permit Coverage Individual Permit Alternative Any discharge eligible for coverage under this general permit may alternatively be authorized under an individual TPDES permit according to 30 TAC Chapter 305 (relating to Consolidated Permits). Applications for individual permit coverage should be submitted at least three hundred and thirty (330) days prior to commencement of construction activities to ensure timely issuance. 2. Individual Permit Required The executive director may suspend an authorization or deny an NOI in accordance with the procedures set forth in 30 TAC Chapter 205 (relating to General Permits for Waste Discharges), including the requirement that the executive director provide written notice to the permittee. The executive director may require an operator of a construction site, otherwise eligible for authorization under this general permit, to apply for an individual TPDES permit in the following circumstances: (a) the conditions of an approved total maximum daily load (TMDL) limitation or TMDL implementation plan on the receiving stream; (b) the activity being determined to cause a violation of water quality standards or being found to cause, or contribute to, the loss of a designated use of surface water in tine state: and (c) any other consideration defined in 30 TAC Chapter 205 (relating to General Permits for Waste Discharges) including 30 TAC ' 205.4(c)(3)(D), which allows the commission to deny authorization under the general permit and require an individual Page 24 Construction General Permit TPDES General Permit TXR150000 permit if a discharger Alias been determined by the executive director to have been out of compliance with any rule, order. or permit of the commission, including non- payment of fetes assessed by the executive director. @ Additionally. the executive director may cancel. revoke. or suspend authorization to discharge under this general permit based on a finding of historical and significant noncompliance with the provisions of this general permit. relating to 30 TAC §60.3 (Use of Compliance History). Denial of authorization to discharge tinder this general permit or suspension ol'a permittee`s authorization Under this general permit shall be done according to commission rules in 30 TAC, Chapter 205 (relating to General Permits for Waste Discharges). 3. Any discharge eligible for authorization under this general permit may alternatively be authorized under a separate general permit according to 30 TAC Chapter 205 (relating to General Permits for Waste Discharges), if applicable. Section I. Permit Expiration This general permit is issued for a term not to exceed five (5) years. All active discharge authorizations expire on the date provided on page one (1) of this permit. Following public notice and comment., as provided by 30 TAC ' 205.3 (relating to Public Notice, Public Meetings, and Public Comment), the commission may amend, revoke, cancel, or renew this general permit. 2. If the executive director publishes a notice of the intent to renew or amend this general permit before the expiration date, the permit will remain in effect for existing, authorized discharges until the commission takes final action on the permit. Upon issuance of a renewed or amended permit, permittees may be required to submit an NOI within 90 days following the effective date of the renewed or amended permit, unless that permit provides for an alternative method for obtaining authorization. 3. If the commission does not propose to reissue this general permit within 90 days before the expiration date, permittees shall apply for authorization under an individual permit or an alternative general permit. If the application for an individual permit is submitted before the expiration date, authorization under this expiring general permit remains in effect until the issuance or denial of an individual permit. No new NOIs will be accepted nor new authorizations honored under the general permit after the expiration date. Part III. Storm Water Pollution Prevention Plans (SWP3) Storm water pollution prevention plans must be prepared to address discharges authorized under Parts II.E.2. and ILE.3. that will reach Waters of the United States, including discharges to MS4s and privately owned separate storm sewer systems that drain to Waters of the United States, to identify and address potential sources of pollution that are reasonably expected to affect the quality of discharges from the construction site, including off -site material storage areas, overburden and stockpiles of dirt, borrow areas, equipment staging areas, vehicle repair areas, fueling areas, etc., used solely by the permitted proj ect. The S WP3 must describe the implementation of practices that will be used to minimize to the extent practicable the discharge Page 25 Construction General Permit TPDES General Permit TXR150000 ofpotlutants in storm water associated with construction activity and non -storm water discharges described in Part II.A.3., in compliance with the terms and conditions of this permit. Individual operators at a site may develop separate SWP3s that cover only their portion of the project. provided reference is made to the other operators at the site. Where there is more than one SWP3 for a site, permittees must coordinate to ensure that BMPs and controls are consistent and do not negate or impair the effectiveness of each other. Regardless of whether a single comprehensive SWP3 is developed or separate SWP3s are developed Tor each operator, it is the responsibility of each operator to ensure compliance with the terms and conditions of this general permit in the areas of the construction site where that operator has control over construction plans and specifications or day -to -day operations. Section A. Shared SWP3 Development For more effective coordination of BMPs and opportunities for cost sharing, a cooperative effort by the different operators at a site is encouraged. Operators must independently obtain authorization, but may work together to prepare and implement a single, comprehensive SWP3 for the entire construction Site. The SWP3 must clearly list the name and, for large construction activities, the general permit . authorization numbers, for each operator that participates in the shared SWP3. tJntil the TCEQ responds to receipt of the NOI with a general permit authorization number, the SWP3 must specify the date that the NOI was submitted to TCEQ by each operator. Each operator participating in the shared plan must also sign the SWP3. 2. The SWP3 must clearly indicate which operator is responsible for satisfying each shared requirement of the SWP3. If the responsibility for satisfying a requirement is not described in the plan, then each permittee is entirely responsible for meeting the requirement within the boundaries of the construction site where they perform construction activities. The SWP3 must clearly describe responsibilities for meeting each requirement in shared or common areas. Section B. Responsibilities of Operators I Secondary Operators and Primary Operators with Control Over Construction Plans and Specifications All secondary operators and primary operators with control over construction plans and specifications must: (a) ensure the project specifications allow or provide that adequate BMPs are developed to meet the requirements of Part III of this general permit; (b) ensure that the SWP3 indicates the areas of the project where they have control over project specifications, including the ability to make modifications in specifications; (c) ensure all other operators affected by modifications in project specifications are notified in a timely manner so that those operators may modify their best Page 26 Construction General Permit 2 Section C. TPDES General Permit TXR150000 management practices as necessary to remain compliant with the conditions of this general permit: and (d) ensure that the SWP3 for portions of the project where they are operators indicates the name and site- specific TPDES authorization numbers for permittees with the day - to -day operational control over those activities necessary to ensure compliance with the S1A7P3 and other permit conditions. If the party with day-to -day operational control has not been authorized or has abandoned the site, the person with control over project specifications is considered to be the responsible party until the authority is transferred to another party and the SWP3 is updated. Primary Operators with Day -to -Day Operational Control Primary Operators with day -to -day operational control of those activities at a project that are necessary to ensure compliance with an SWP3 and other permit conditions must ensure that the SWP3 accomplishes the following requirements: (a) meets the requirements of this general permit for those portions of the project where they are operators; (b) identifies the parties responsible for implementation of best management practices (BMPs) described in the SWP3; (c) indicates areas of the project where they have operational control over day -to -day activities; and (d) includes, for areas where they have operational control over day -to -day activities, the name and site - specific TPDES authorization number of the parties with control over project specifications, including the ability to make modifications in specifications. Deadlines for SWP3 Preparation, Implementation, and Compliance The SWP3 must be prepared prior to obtaining authorization under this general permit, and implemented prior to commencing construction activities that result in soil disturbance. The SWP3 must be prepared so that it provides for compliance with the terms and conditions of this general permit. Section D. Plan Review and Making Plans Available The SWP3 must be retained on -site at the construction site or, if the site is inactive or does not have an on -site location to store the plan, a notice must be posted describing the location of the SWP3. The SWP3 must be made readily available at the time of an on -site inspection to: the executive director; a federal, state, or local agency approving sediment and erosion plans, grading plans, or storm water management plans; local govermnent officials; and the operator of a municipal separate storm sewer receiving discharges from the site. 2. In addition to the requirement to post the NOI, a primary operator of a large construction activity must post the site notice provided in Attaclm-ient 4 of this permit near the main Page 27 Construction General Permit TPDES General Permit TXR150000 entrance of the construction site. An operator of a small construction activity seeking authorization under this general permit and a secondary operator of a large construction activity must post the site notice required in Part II.E.1., 2., or 3. of this permit in order to obtain authorization (see Attachments 1, 2, and 3). If the construction project is a linear construction project (e.g. pipeline or highway), the notices must be placed in a publicly accessible location near where construction is actively underway. Notices for these linear sites may be relocated.. as necessary, along the length of the project. The notices must be readily available for viewing by the general public; local, state, and federal authorities; and contain the following information: (a) the site - specific TPDES authorization number for the project if assigned; (b) the operator name, contact name, and contact phone number; (c) a brief description of the project, and (d) the location of the SWP3. 3. This permit does not provide the general public with any right to trespass on a construction site for any reason. including inspection of a site; nor does this permit require that permittees allow members of the general public access to a construction site. Section E. Revisions and Updates to SWP3s The permittee must revise or update the SWP3 whenever the following occurs: 1. a change in design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants and that has not been previously addressed in the SWP3; 2. changing site conditions based on updated plans and specifications, new operators, new areas of responsibility, and changes in BMPs; or 3. results of inspections or investigations by site operators, operators of a municipal separate storm sewer system receiving the discharge, authorized TCEQ personnel, or a federal, state or local agency approving sediment and erosion plans indicate the SWP3 is proving ineffective in eliminating or significantly minimizing; pollutants in discharges authorized under this general permit. Section F. Contents of SWP3 The SWP3 must include, at a minimum, the information described in this section. A site or project description, which includes the following information: (a) a description of the nature of the construction activity; (b) a list of potential pollutants and their sources; Page 28 Construction General Permit TPDES General Permit TXR150000 (c) a description of the intended schedule or sequence of activities that will disturb soils for major portions of the site, (d) the total number of acres of the entire property and the total number of acres where construction activities will occur, including off -site material storage areas, overburden and stockpiles of dirt. and borrow areas that are authorized under the permittee's NOI; (e) data describing the soil or the quality of any discharge from the site:, (f) a map showing the general location of the site (e.g. a portion of a city or county map); (g) a detailed site map (or maps) indicating the following: (i) drainage patterns and approximate slopes anticipated after major grading activities; (ii) areas where soil disturbance will occur; (iii) locations of all major structural controls either planned or in place; (iv) locations where temporary or permanent stabilization practices are expected to be used; (v) locations of construction support activities, including off -site activities, that are authorized under the permittee's NOI, including material, waste, borrow, fill, or equipment storage areas; (vi) surface waters (including wetlands) either at, adjacent, or in close proximity to the site; (vii) locations where storm water discharges from the site directly to a surface water body or a municipal separate storm sewer system; and (viii) vehicle wash areas. Where the amount of information required to be included on the map would result in a single map being difficult to read and interpret, the operator shall develop a series of maps that collectively include the required information. (h) the location and description of support activities authorized under the permittee's NOI, including asphalt plants, concrete plants. and other activities providing support to the construction site that is authorized under this general permit; (i) the name of receiving waters at or near the site that may be disturbed or that may receive discharges from disturbed areas of the project; 0) a copy of this TPDES general permit, and Page 29 Construction General Permit TPDES General Permit TXR150000 (k) the notice of intent (NOI) and acknowledgement certificate for primary operators of large construction sites, and the site notice for small construction sites and for secondary operators of large construction sites. 2. A description of the best management practices (MOPS) that will be used to minimize Pollution in runoff. The description must identify the general timing or sequence for implementation. At a minimum, the description must include the following components: (a) General Requirements (1) Erosion and sediment controls must be designed to retain sediment on -site to the extent practicable with consideration for local topography, soil type, and rainfall. (ii) Control measures must be properly selected, installed, and maintained according to the manufacturer —s or designer=s specifications. (iii) Controls must be developed to minimize the offsite transport of litter, construction debris, and construction materials. (b) Erosion Control and Stabilization Practices The SWP3 must include a description of temporary and permanent erosion control and stabilization practices for the site, including a schedule of when the practices will be implemented. Site plans should ensure that existing vegetation is preserved where it is possible. (i) Erosion control and stabilization practices may include but are not limited to: establishment of temporary or permanent vegetation, mulching, geotextiles, sod stabilization, vegetative buffer strips, protection of existing trees and vegetation, slope texturing, temporary velocity dissipation devices, flow diversion mechanisms, and other similar measures. (ii) The following records must be maintained and either attached to or referenced in the SWP3, and made readily available upon request to the parties listed in Part III.D.I of this general permit: (A) the dates when major grading activities occur; (B) the dates when construction activities temporarily or permanently cease on a portion of the site; and (C) the dates when stabilization measures are initiated. Page 30 Construction General Permit TPDES General Permit TXR150000 (iii) Erosion control and stabilization measures must be initiated as soon as practicable in portions of the site where construction activities have temporarily ceased. Stabilization measures that provide a protective cover must be initiated as soon as practicable in portions of the site where construction activities have permanently ceased. Except as provided in (A) through (D) below. these measures must be initiated no more than 14 days after the construction activit} in that portion of the site has temporarily or permanently ceased: (A) Where the initiation of stabilization measures by the 14th day after construction activity temporarily or permanently ceased is precluded by snow cover or frozen ground conditions, stabilization measures must be initiated as soon as practicable. (B) Where construction activity on a portion of the site has temporarily ceased, and earth disturbing activities will be resumed within 21 days, temporary erosion control and stabilization measures are not required on that portion of site. (C) In arid areas, semiarid areas, and areas experiencing droughts where the initiation of stabilization measures by the 14th day after construction activity has temporarily or permanently ceased or is precluded by arid conditions, erosion control and stabilization measures must be initiated as soon as practicable. Where vegetative controls are not feasible due to arid conditions, the operator shall install non - vegetative erosion controls. If non-vegetative controls are not feasible, the operator shall install temporary sediment controls as required in Paragraph (D) below. (D) In areas where temporary stabilization measures are infeasible, the operator may alternatively utilize temporary perimeter controls. The operator must document in the SWP3 the reason why stabilization measures are not feasible, and must demonstrate that the perimeter controls will retain sediment on site to the extent practicable. The operator must continue to inspect the BMPs at the frequency established in Section III.F.7.(a) for unstabilized sites. (iv) Final stabilization must be achieved prior to termination of permit coverage. (c) Sediment Control Practices The SWP3 must include a description of any sediment control practices used to remove eroded soils from storm water runoff, including the general timing or sequence for implementation of controls. Page 31 Construction General Permit TPDES General Permit TXR t50000 (1) Sites With Drainage Areas of Ten or More Acres (A) Sedimentation Basin(s) (1) A sedimentation basin is required, where feasible, for a common drainage location that serves an area with ten 0 0) or more acres disturbed at one time. A sedimentation basin may be temporary or permanent, and must provide sufficient storage to contain a calculated volume of runoff from a 2- year, 24 -hour storm from each disturbed acre drained. When calculating the volume of runoff from a 2 -year, 24 -hour storm event, it is not required to include the flows from offsite areas and flow from onsite areas that are either undisturbed or have already undergone permanent stabilization, if these flows are diverted around both the disturbed areas of the site and the sediment basin. Capacity calculations shall be included in the SWP3. (2) Where rainfall data is not available or a calculation cannot be performed, the sedimentation basin must provide at least 3,600 cubic feet of storage per acre drained until final stabilization of the site. (3) If a sedimentation basin is not feasible, then the permittee shall provide equivalent control measures until final stabilization of the site. In determining whether installing a sediment basin is feasible, the permittee may consider factors such as site soils, slope, available area, public safety, precipitation patterns, site geometry, site vegetation, infiltration capacity, geotechnical factors, depth to groundwater, and other similar considerations. The permittee shall document the reason that the sediment basins are not feasible, and shall utilize equivalent control measures, which may include a series of smaller sediment basins. (B) Perimeter Controls: At a minimum, silt fences, vegetative buffer strips, or equivalent sediment controls are required for all down slope boundaries of the construction area, and for those side slope boundaries deemed appropriate as dictated by individual site conditions. (ii) Controls for Sites With Drainage Areas Less than Ten Acres: (A) Sediment traps and sediment basins may be used to control solids in storm water runoff for drainage locations serving less than ten (10) acres. At a minimum, silt fences, vegetative buffer strips, or equivalent sediment controls are required for all down slope boundaries of the construction area, and for those side slope Page 3 2 Construction General Permit TPDES General Permit TXR150000 boundaries deemed appropriate as dictated by individual site conditions. (B) Alternatively, a sediment basin that provides storage for a calculated volume of runoff from a 2 -year, 24 -hour storm from each disturbed acre drained may be utilized. Where rainfall data is not available or a calculation cannot be performed, a temporary or permanent sediment basin providing 3,600 cubic feet of storage per acre drained may be provided. if a calculation is performed. then the calculation shall be included in the SWP3. A Description of Permanent Storm Water Controls A description of any measures that will be installed during the construction process to control pollutants in storm water discharges that may occur after construction operations have been completed must be included in the SWP3. Permittees are only responsible for the installation and maintenance of storm water management measures prior to final stabilization of the site or prior to submission of an NOT. Other Required Controls and BMPs (a) Permittees shall minimize, to the extent practicable, the off -site vehicle tracking of sediments and the generation of dust. The SWP3 shall include a description of controls utilized to accomplish this requirement. (b) The SWP3 must include a description of construction and waste materials expected to be stored on -site and a description of controls to minimize pollutants from these materials. (c) The SWP3 must include a description of potential pollutant sources from areas other than construction (such as storm water discharges from dedicated asphalt plants and dedicated concrete batch plants), and a description of controls and measures that will be implemented at those sites to minimize pollutant discharges. (d) Permittees shall place velocity dissipation devices at discharge locations and along the length of any outfall channel (i.e., runoff conveyance) to provide a non- erosive flow velocity from the structure to a water course, so that the natural physical and biological characteristics and functions are maintained and protected. (e) Permittees shall design and utilize appropriate controls to minimize the offsite transport of suspended sediments and other pollutants if it is necessary to pump or channel standing water from the site. Page 3' ) Construction General Permit TPDES General Permit TXR150000 5. Documentation of Compliance with Approved State and Local Plans (a) Permittees must ensure that the SWP3 is consistent with requirements specified in applicable sediment and erosion site plans or site permits, or storm water management site plans or site permits approved by federal. state, or local officials. (h) SWP3s must be updated as necessary to remain consistent. with any changes applicable to protecting surface water resources in sediment erosion site. plans or site permits, or storm water management site plans or site permits approved by state or- local official for which the permittee receives written notice. (c) If the permittee is required to prepare a separate management plan, including but not limited to a Water Pollution Abatement Plan or Contributing Zone Plan in accordance with 30 TAC Chapter 213 (related to the Edwards Aquifer), then a copy of that plan must be either included in the SWP3 or made readily available upon request to authorized personnel of the TCEQ. The permittee shall maintain a copy of the approval letter for the plan in its SWP3. 6. Maintenance Requirements (a) All protective measures identified in the SWP3 must be maintained in effective operating condition. If, through inspections or other means, the permittee determines that BMPs are not operating effectively, then the permittee shall perform maintenance as necessary to maintain the continued effectiveness of storm water controls, and prior to the next rain event if feasible. If maintenance prior to the next anticipated storm event is impracticable, the reason shall be documented in the SWP3 and maintenance must be scheduled and accomplished as soon as practicable. Erosion and sediment controls that have been intentionally disabled, run -over, removed, or otherwise rendered ineffective must be replaced or corrected immediately upon discovery. (b) If periodic inspections or other information indicates a control has been used incorrectly, is performing inadequately, or is damaged, then the operator must replace or modify the control as soon as practicable after making the discovery. (c) Sediment must be removed from sediment traps and sedimentation ponds no later than the time that design capacity has been reduced by 50 %. For perimeter controls such as silt fences, berms, etc., the trapped sediment must be removed before it reaches 50% of the above - ground height. (d) If sediment escapes the site, accumulations must be removed at a frequency that minimizes off -site impacts, and prior to the next rain event, if feasible. If the permittee does not own or operate the off -site conveyance, then the permittee must to work with the owner or operator of the property to remove the sediment. Page 34 Construction General Permit 7. Inspections of Controls TPDES General Permit TXR150000 (a) Personnel provided by the permittee must inspect disturbed areas of the construction site that have not been finally stabilized, areas used for storage of materials that are exposed to precipitation, discharge locations. and structural controls for evidence of, or the potential for. pollutants entering the drainage system. Personnel conducting these inspections must be knowledgeable of this general permit, familiar with the construction site. and knowledgeable ofthe SWP3 for the site. Sediment and erosion control measures identified in the SWP3 must be inspected to ensure that they are operating correctly, Locations where vehicles enter or exit the site must be inspected for evidence of off -site sediment tracking. Inspections must be conducted at least once every 14 calendar days and within 24 hours of the end of a storm event of 0.5 inches or greater. Where sites have been finally or temporarily stabilized or where runoff is unlikely due to winter conditions (e.g. site is covered with snow, ice, or frozen (,round exists), inspections must be conducted at least once every month. In arid or semi -arid areas, inspections must be conducted at least once every month and within 24 hours after the end of a storm event of 0.5 inches or greater. As an alternative to the above - described inspection schedule of once every 14 calendar days and within 24 hours of a storm event of 0.5 inches or greater, the SWP3 may be developed to require that these inspections will occur at least once every seven (7) calendar days. If this alternative schedule is developed, then the inspection must occur on a specifically defined day, regardless of whether- or not there has been a rainfall event since the previous inspection. The inspections may occur on either schedule provided that the SWP3 reflects the current schedule and that any changes to the schedule are conducted in accordance with the following provisions: the schedule may be changed a maximum of one time each month, the schedule change must be implemented at the beginning of a calendar month, and the reason for the schedule change must be documented in the SWP3 (e.g., end of "dry" season and beginning of "wet" season). (b) Utility line installation, pipeline construction, and other examples of long, narrow, linear construction activities may provide inspection persomel with limited access to the areas described in Part IILF.8.(a) above. Inspection of these areas could require that vehicles compromise temporarily or even permanently stabilized areas, cause additional disturbance of soils, and increase the potential for erosion. In these circumstances, controls must be inspected at least once every 14 calendar days and within 24 hours of the end of a storm event of 0.5 inches, but representative inspections may be performed. For representative inspections, personnel must inspect controls along the construction site for 0.25 mile above and below each access point where a roadway, undisturbed right -of -way, or other similar feature intersects the construction site and allows access to the areas described in Part III.F.8.(a) above. The conditions of the controls along each inspected 0.25 mile portion may be considered as representative of the condition of controls along that reach extending from the end of the 0.25 mile portion to either the end of the next 0.25 mile inspected portion, or to the end of the project, whichever occurs first. Page 35 Construction General Permit TPDES General Permit TXR150000 As an alternative to the above - described inspection schedule of once every 14 calendar days and within 24 hours of a storm event of 0.5 inches or greater, the SWP3 may be developed to require that these inspections will occur at least once every seven (7) calendar days. if this alternative schedule is developed, the inspection must occur on a specifically defined day, regardless of whether or not there has been a rainfall event since the previous inspection. The inspections may occur- on either schedule provided that the SWP3 reflects the current schedule and that any changes to the schedule are conducted in accordance with the following provisions: the schedule may be changed a maximum of one time each month, the schedule change must be implemented at the beginning of a calendar month, and the reason for the schedule change must be documented in the SWP3 (e.g., end of'-dry" season and beginning of "wet" season). (c) In the event of flooding or other uncontrollable situations which prohibit access to the inspection sites, inspections must be conducted as soon as access is practicable. (d) The SWP3 must be modified based on the results of inspections, as necessary, to better control pollutants in runoff. Revisions to the SWP3 must be completed within seven (7) calendar days following the inspection. If existing BMPs are modified or if additional BMPs are necessary, an implementation schedule must be described in the SWP3 and wherever possible those changes implemented before the next storm event. If implementation before the next anticipated storm event is impracticable, these changes must be implemented as soon as practicable. (e) A report summarizing the scope of the inspection, the date(s) of the inspection, and major observations relating to the implementation of the SWP3 must be made and retained as part of the SWP3. Major observations should include: The locations of discharges of sediment or other pollutants from the site; locations of BMPs that need to be maintained; locations of BMPs that failed to operate as designed or proved inadequate for a particular location; and locations where additional BMPs are needed. Actions taken as a result of inspections must be described within, and retained as a part of, the SWP3. Reports must identify any incidents of non - compliance. Where a report does not identify any incidents of non - compliance, the report must contain a certification that the facility or site is in compliance with the SWP3 and this permit. The report must be signed by the person and in the manner required by 30 TAC ' 305.128 (relating to Signatories to Reports). The names and qualifications of personnel malting the inspections for the permittee may be documented once in the SWP3 rather than being included in each report. 8. The SWP3 must identify and ensure the implementation of appropriate pollution prevention measures for all eligible non -storm water components of the discharge, as listed in Part II.A.3. of this permit. 9. The SWP3 must include the information required in Part III.B. of this general permit. Page 36 Construction General Permit TPDES General Permit TXR150000 Part IV. Storm Water Runoff from Concrete Batch Plants Discharges of storm water runoff from concrete batch plants at regulated construction sites may be authorized under the provisions of this general permit provided that the following requirements are met for concrete batch plant(s) authorized under this permit. If discharges of storm water runoff from concrete batch plants are not covered under this general permit. then discharges must be authorized under an alternative general permit or individual permit. This permit does not authorize the discharge or land disposal of any wastewater from concrete batch plants at regulated construction sites. Authorization for these wastes must be obtained under an individual permit or an alternative general perl.nit. Section A. Benchmark Sampling Requirements Operators of concrete batch plants authorized under this general permit must sample the storm water runoff from the concrete batch plants according to the requirements of this section of this general permit, and must conduct evaluations on the effectiveness of the SWP3 based on the following benchmark monitoring values: Benchmark Benchmark Sampling Sample Type Parameter Value Frequency Oil and Grease 15 mg /L 1 /quarter ( *1)( *2) Grab ( *3) Total Suspended 100 mg /L 1 /quarter (* 1)( *2) Grab ( *3) Solids pH 6.0-9.0 1 /quarter (* 1)( *2) Grab ( *3) Standard Units Total Iron 1.3 mg/L 1 /quarter( *1)( *2) Grab ( *3) (* 1) When discharge occurs. Sampling is required within the first 30 minutes of discharge. If it is not practicable to take the sample, or to complete the sampling, within the first 30 minutes, sampling must be completed within the first hour of discharge. If sampling is not completed within the first 30 minutes of discharge, the reason must be documented and attached to all required reports and records of the sampling activity. ( *2) Sampling must be conducted at least once during each of the following periods. The first sample must be collected during the first full quarter that a storm water discharge occurs from a concrete batch plant authorized under this general permit. January through March April through June July through September October through December For projects lasting less than one full quarter, a minimum of one sample shall be collected, provided that a storm water discharge occurred at least once following submission of the NOI or following the date that automatic authorization was obtained under Section II.E.2., and prior to terminating coverage. Page 37 Construction General Permit TPDES General Permit TXIZ150000 ( *3) A grab sample shall be collected from the storm water discharge resulting from a storm event that is at least 0. l inches of measured precipitation that occurs at least 72 hours from the previously measurable storm event. The sample shall be collected downstream of the concrete batch plant, and where the discharge exits any BMPs utilized to handle the runoff from the batch plant, prior to commingling with any other water authorized under this general permit. 2. The permittee mush compare the results of sample analyses to the benchmark values above. and must include this comparison in the overall assessment of the SWP3's effectiveness. Analytical results that exceed a benchmark value are not a violation of this permit, as these values are not numeric effluent limitations. Results of analyses are indicators that modifications of the SWP3 should be assessed and may be necessary to protect water quality. The operator must investigate the cause for each exceedance and must document the results of this investigation in the SWP3 by the end of the quarter fotlowing the sampling event. The operator's investigation must identify the following: (a) any additional potential sources of pollution, such as spills that might have occurred, (b) necessary revisions to good housekeeping measures that are part of the SWP3, (c) additional BMPs, including a schedule to install or implement the BMPs, and (d) other parts of the SWP3 that may require revisions in order to meet the goal of the benchmark values. Background concentrations of specific pollutants may also be considered during the investigation. If the operator is able to relate the cause of the exceedance to background concentrations, then subsequent exceedances of benchmark values for that pollutant may be resolved by referencing earlier findings in the SWP3. Background concentrations may be identified by laboratory analyses of samples of storm water runon to the permitted facility, by laboratory analyses of samples of storm water run -off from adjacent non - industrial areas, or by identifying the pollutant is a naturally occurring material in soils at the site. Section B. Best Management Practices (BMPs) and SWP3 Requirements Minimum Storm Water Pollution Prevention Plan (SWP3) Requirements — The following are required in addition to other SWP3 requirements listed in this general permit (including, but not limited to Part III.F.7. of this permit): Description of Potential Pollutant Sources - The SWP3 must provide a description of potential sources (activities and materials) that may reasonably be expected to affect the quality of storm water discharges associated with concrete batch plants authorized under this permit. The SWP3 must describe practices that that will be used to reduce the pollutants in these discharges to assure compliance with this general permit, including the protection of water quality, and must ensure the implementation of these practices. Page 38 Construction General Permit TPDES General Permit TXR150000 The following must be developed, at a minimum, in support of developing this description: (a) Drainage — The site map must include the following information: (1) the location of all outfalls for storm water discharges associated with concrete batch plants that are authorized under this permit: (2) a depiction of the drainage area and the direction of flow to the outfall(s): (3) structural controls used within the drainage area(s); (4) the locations of the following areas associated with concrete batch plants that are exposed to precipitation: vehicle and equipment maintenance activities (including fueling, repair, and storage areas for vehicles and equipment scheduled for maintenance); areas used for the treatment, storage, or disposal of wastes; liquid storage tanks; material processing and storage areas; and loading and unloading areas; and (5) the locations of the following: any bag house or other dust control device(s); recycle /sedimentation pond, clarifier or other device used for the treatment of facility wastewater (including the areas that drain to the treatment device); areas with significant materials; and areas where major spills or leaks have occurred. (b) Inventory of Exposed Materials — A list of materials handled at the concrete batch plant that may be exposed to storm water and that have a potential to affect the quality of storm water discharges associated with concrete batch plants that are authorized under this general permit. (c) Spills and Leaks - A list of significant spills and leaks of toxic or hazardous pollutants that occurred in areas exposed to storm water and that drain to storm water outfalls associated with concrete batch plants authorized under this general permit must be developed, maintained, and updated. (d) Sampling Data - A summary of existing storm water discharge sampling data must be maintained, if available. 2. Measures and Controls - The SWP3 must include a description of management controls to regulate pollutants identified in the SWP3's "Description of Potential Pollutant Sources" from Part N.B.1.(a) of this permit, and a schedule for implementation of the measures and controls. This must include; at a minimum: (a) Good Housekeeping - Good housekeeping measures must be developed and implemented in the area(s) associated with concrete batch plants. (1) Operators must prevent or minimize the discharge of spilled cement, aggregate (including sand or gravel.), settled dust, or other significant materials from paved portions of the site that are exposed to storm water. Page 39 Construction General Permit TPDES General Permit TXR150000 Measures used to minimize the presence of these materials may include regular sweeping or other equivalent practices. These practices must be conducted at a frequency that is determined based on consideration of the amount of industrial activity occurring in the area and frequency of precipitation, and shall occur at least once per week when cement or aggregate is being handled or otherwise processed in the area. (?) Operators must prevent the exposure of fine granular solids, such as cement, to storm water. Where practicable, these materials must be stored in enclosed silos, hoppers or buildings, in covered areas, or under covering. (b) Spill Prevention and Response Procedures - Areas where potential spills that can contribute pollutants to storm water runoff, and the drainage areas from these locations, must be identified in the SWP3. Where appropriate, the SWP3 must specify material handling procedures, storage requirements, and use of equipment. Procedures for cleaning up spills must be identified in the SWP3 and made available to the appropriate personnel. (c) Inspections - Qualified facility personnel (i.e., a person or persons with knowledge of this general permit, the concrete batch plant, and the SWP3 related to the concrete batch plant(s) for the site) must be identified to inspect designated equipment and areas of the facility specified in the SWP3. The inspection frequency must. be specified in the SWP3 based upon a consideration of the level of concrete production at the facility, but must be a minimum of once per month while the facility is in operation. The inspection must take place while the facility is in operation and must, at a minimum, include all areas that are exposed to storm water at the site, including material handling areas, above ground storage tanks, hoppers or silos, dust collection/containment systems, truck wash clown and equipment cleaning areas. Follow -up procedures must be used to ensure that appropriate actions are taken in response to the inspections. Records of inspections must be maintained and be made readily available for inspection upon request. (d) Employee Training - An employee training program must be developed to educate personnel responsible for implementing any component of the SWP3, or personnel otherwise responsible for storm water pollution prevention, with the provisions of the SWP3. The frequency of training must be documented in the SWP3, and at a minimum, must consist of one training prior to the initiation of operation of the concrete batch plant. (e) Record Keeping and Internal Reporting Procedures - A description of spills and similar incidents, plus additional information that is obtained regarding the quality and quantity of storm water discharges, must be included in the SWP3. Inspection and maintenance activities must be documented and records of those inspection and maintenance activities must be incorporated in the SWP3. (f) Management of Runoff - The SWP3 shall contain a narrative consideration for reducing the volume of runoff from concrete batch plants by diverting runoff or Page 40 Construction General Permit TPDES General Permit TXR150000 otherwise managing runoff. including use of infiltration, detention ponds. retention ponds. or reusing of runoff. 3. Comprehensive Compliance Evaluation — At least once per year, one or more qualified personnel (i.e._. a person or persons with knowledge of this general permit. the concrete batch plant, and the SWP3 related to the concrete batch plant(s) for the site) shall conduct a compliance evaluation of the plant. The evaluation must include the following. (a) Visual examination of all areas draining storm water associated with regulated concrete batch plants for evidence of, or the potential for, pollutants entering the drainage system. These include but are not limited to: cleaning areas, material handling areas, above ground storage tanks, hoppers or silos, dust collection /containment systems, and truck wash down and equipment cleaning areas. Measures implemented to reduce pollutants in runoff (including structural controls and implementation of management practices) must be evaluated to determine if they are effective and if they are implemented in accordance with the terms of this permit and with the permittee's SWP3. The operator shall conduct a visual inspection of equipment needed to implement the SVi7P3, such as spill response equipment. (b) Based on the results of the evaluation, the following must be revised as appropriate within two weeks of the evaluation: the description of potential pollutant sources identified in the SWP3 (as required in Part IV.B.1., "Description of Potential Pollutant Sources "); and pollution prevention measures and controls identified in the SWP3 (as required in Part IV.B.2., "Measures and Controls "). The revisions may include a schedule for implementing the necessary changes. (c) The permittee shall prepare and include in the SWP3 a report summarizing the scope of the evaluation, the personnel making the evaluation, the date(s) of the evaluation, major observations relating to the implementation of the SWP3, and actions taken in response to the findings of the evaluation. The report must identify, any incidents of noncompliance. Where the report does not identify incidences of noncompliance, the report must contain a statement that the evaluation did not identify any incidence(s), and the report must be signed according to 30 TAC Section 305.128, relating to Signatories to Reports. (d) The Comprehensive Compliance Evaluation may substitute for one of the required inspections delineated in Part IV.B.2.(c) of this general permit. Section C. Prohibition of Wastewater Discharges Wastewater discharges associated with concrete production including wastewater disposal by land application are not authorized under this general permit. These wastewater discharges must be authorized under an alternative TCEQ water quality permit or otherwise disposed of in an authorized manner. Discharges of concrete truck washout at construction sites may be authorized if conducted in accordance with the requirements of Part V of this general permit. Page 41 Construction General Permit TPDES General Permit TXR 150000 Part V. Concrete Truck Wash Out Requirements This general permit authorizes the wash out of concrete trucks at construction sites regulated under Sections II.E.1., 2., and 3. of this general permit, provided the following requirements are noel. Authorization is limited to the land disposal of wash out water fi-om concrete trucks that are associated with off -site production facilities. Wash out water associated with on -site concrete production facilities must be authorized under a separate TCEQ general permit or individual permit. Direct discharge of concrete truck wash out water to surface water in the state, including discharge to storm sewers, is prohibited by this general permit. 2. Concrete truck wash out water shall be discharged to areas at the construction site where structural controls have been established to prevent direct discharge to surface waters, or to areas that have a minimal slope that allow infiltration and filtering of wash out water to prevent direct discharge to surface waters. Structural controls may consist of temporary berms, temporary shallow pits, temporary storage tanks with slow rate release, or other reasonable measures to prevent runoff from the construction site. 3. Wash out of concrete trucks during rainfall events shall be minimized. The direct discharge of concrete truck wash out water is prohibited at all times, and the operator shall insure that its BMPs are sufficient to prevent the discharge of concrete truck washout as the result of rain. 4. The discharge of wash out water shall not cause or contribute to groundwater contamination. 5. If a SWP3 is required to be implemented, the SWP3 shall include concrete wash out areas on the associated map. Part VI. Retention of Records The permittee must retain the following records for a minimum period of three (3) years from the date that a NOT is submitted as required by Part II.E.3. For activities in which an NOT is not required, records shall be retained for a minimum period of three (3) years from the date that the operator- terminates coverage under Section II.F.3. of this permit. Records include: 1. A copy of the SWP3; 2. All reports and actions required by this permit, including a cope of the construction site notice; 3. All data used to complete the NOI, if an NOI is required for coverage under this general permit; and 4. All records of submittal of forms submitted to the operator- of any MS4 receiving the discharge and to the secondary operator- of a large construction site, if applicable. Page 42 Construction General Permit Part VII. Standard Permit Conditions TPDES General Permit TXR150000 The permittee has a duty to comply with all permit conditions. Failure to comply with any permit condition is a violation of the permit and statutes under which it was issued, and is grounds for enforcement action. for terminating coverage under this general permit, or for requiring a discharger to apply for and obtain an individual TPDES permit. 2. Authorization under this general permit may be suspended or revoked for cause. Filing a notice of planned changes or anticipated non - compliance by the permittee does not stay any permit condition. The permittee must furnish to the executive director, upon request and within a reasonable time, any information necessary for the executive director to determine whether cause exists for revoking, suspending, or terminating authorization under this permit. Additionally, the permittee must provide to the executive director, upon request. copies of all records that the permittee is required to maintain as a condition of this general permit. It is not a defense for a discharger in an enforcement action that it would have been necessary to halt or reduce the permitted activity to maintain compliance with the permit conditions. 4. Inspection and entry shall be allowed under Texas Water Code Chapters 26 -28, Texas Health and Safety Code ' '361.0312-361.033) and 361.037, and 40 Code of Federal Regulations (CFR) ' 122.41(i). The statement in Texas Water Code ' 26.014 that commission entry of a facility shall occur- according to an establishment's rules and regulations concerning safety, internal security, and fire protection is not grounds for denial or restriction of entry to any part of the facility or site, but merely describes the commission's duty to observe appropriate rules and regulations during an inspection. The discharger is subject to administrative, civil, and criminal penalties, as applicable, under Texas Water Code ' ' 26.136, 26.212, and 26.213 for violations including but not limited to the following: a. negligently or knowingly violating the federal Clean Water Act (CWA), ' ' 301, 302, 306, 307, 308, 318, or 405, or any condition or limitation implementing any sections in a permit issued under CWA, ' 402, or any requirement imposed in a pretreatment program approved under CWA, ' ' 402(a)(3) or 402(b)(8); b. knowingly making any false statement, representation, or certification in any record or other document submitted or required to be maintained under a permit, including monitoring reports or reports of compliance or noncompliance. 6. All reports and other information requested by the executive director must be signed by the person and in the manner required by 30 TAC 1305.128 (relating to Signatories to Reports). Authorization under this general permit does not convey property or water rights of any sort and does not grant any exclusive privilege. Page 4' ) Construction General Permit Part VIII. Fees A fee of must be submitted along with the NOI: a. $325 if submitting a paper NOI. or b. $225 if submitting a NOI electronically. TPDES General Permit TXR150000 2. Fees are due upon submission of the NOL An NOI will not be declared administratively complete unless the associated fee has been paid in full. No separate annual fees will be assessed. The Water Quality Annual fee has been incorporated into the NOI fees as described above. Page 44 Construction General Permit TPDES General Permit TXR150000 Appendix A: Automatic Authorization Periods of Low Erosion Potential by Count)'— Eligible Date Ranges Jrews: Nov. 15 - Apr. 30 Kent: Nov. 15 -Jan. 14 or Feb. l - Mar. 30 Archer: Dec. 15 - Feb. 14 Kerr: Dec. 15 - Feb. 14 Armstrong: Nov. 15 - Apr. 30 Kimble: Dec. I5 - Feb. 14 Bailey: Nov. I - Apr. 30, or Nov. 15 - May 14 King: Dec. 15 - Feb. 14 Baylor: Dec. 15 - Feb. 14 Kinney: Dec. 15 - Feb. 14 Borden: Nov. 15 - Apr. 30 Knox,: Dec. 15 - Feb. 14 Brewster: Nov. 15 - Apr. 30 Lamb: Nov. 1 - Apr. 14, or Nov. 15 - Apr. 30 Briscoe: Nov. 15 - Apr. 30 Loving: Nov. 1 - Apr. 30, or Nov. 15 - May 14 Brown: Dec. 15 - Feb. 14 Lubbock: Nov. 15 - Apr. 30 Callahan: Dec. 15 - Feb. 14 Lynn: Nov. 15 - Apr. 30 Carson: Nov. 15 - Apr. 30 Martin: Nov. 15 - Apr. 30 Castro: Nov. 15 - Apr. 30 Mason: Dec. 1.5 - Feb. 14 Childress: Dec. 15 - Feb. 14 Maverick: Dec. 15 - Feb. 14 Cochran: Nov. 1 - Apr. 30, or Nov. 15 - May 14 McCulloch: Dec. 15 - Feb. 14 Coke: Dec. 15 - Feb. 14 Menard: Dec. 15 - Feb. 14 Coleman: Dec. 15 - Feb. 14 Midland: Nov. 1 -5 -Apr. 30 Collingsworth: Jan. 1 - Mar. 30, or Dec. 1 - Feb. 28 Mitchell: Nov. 15 - Apr. 30 Concho: Dec. t 5 -Feb. 14 Moore: Nov. 15 - Apr. 30 Cottle: Dec. 15 - Feb. 14 Motley: Nov. 15 - Jan. 14, or Feb. l - Mar. 30 Crane: Nov. 15 - Apr. 30 Nolan: Dec. 15 - Feb. 14 Crockett: Nov. 15 - Jan. 14, or Feb. I - Mar. 30 Oldham: Nov. 15 - Apr. 30 Crosby: Nov. 15 - Apr. 30 Parmer: Nov. I - Apr. 14, or Nov. 15 - Apr. 30 Culberson: Nov. 1 - May 14 Pecos: Nov. 15 - Apr. 30 Dallam: Nov. 1 - Apr. 14, or Nov. 15 - Apr. 30 Potter: Nov. 15 - Apr. 30 Dawson: Nov. 15 - Apr. 30 Presidio: Nov. 1 - Apr. 30, or Nov. 15 - May 14 -if Smith: Nov. 15 - Apr. 30 Randall: Nov. 15 - Apr. 30 Zkens: Nov. 15 - Jan. 14, or Feb. 1 - Mar. 30 Reagan: Nov. 15 - Apr. 30 Dimmit: Dec. 15 - Feb. 14 Real: Dec. 15 - Feb. 14 Donley: Jan. 1 - Mar. 30, or Dec. l - Feb. 28 Reeves: Nov. 1 - Apr. 30, or Nov. 15 - May 14 Eastland: Dec. 15 - Feb. 14 Runnels: Dec. 15 - Feb. 14 Ector: Nov. 15 - Apr. 30 Schleicher: Dec. 15 - Feb. 14 Edwards: Dec. 15 - Feb. 14 Scurry: Nov. 15 - Apr. 30 El Paso: Jan. 1 - Jul. 14, or May 15 - Jul. 31, or Jun. l - Aug. 14, Shackelford: Dec. 15 - Feb. 14 or Jun. 15 - Sept. 14, or Jul. l - Oct. 14, or Jul. 15 - Oct. 31, or Sherman: Nov. 1.5 - Apr. 30 Aug. 1 - Apr. 30, or Aug. 15 - May 14, or Sept. I - May 30, or Stephens: Dec. 15 - Feb. 14 Oct. 1 - Jun. 14, or Nov. 1 - Jim. 30, or Nov. 15 - Jul. 14 Sterling: Nov. 15 - Apr. 30 Fisher: Dec. 15 - Feb. 14 Stonewall: Dec. 15 - Feb. 14 Floyd: Nov. 15 - Apr. 30 Sutton: Dec. 15 - Feb. 14 Foard: Dec. 15 - Feb. 14 Swisher: Nov. 15 - Apr. 30 Gaines: Nov. 15 - Apr. 30 Taylor: Dec. 15 - Feb. 14 Garza: Nov. 15 - Apr. 30 Terrell: Nov. 15 - Apr. 30 Glasscock: Nov. 15 - Apr. 30 Terry: Nov. 15 - Apr. 30 Hale: Nov. 15 - Apr. 30 Throckmorton: Dec. 15 - Feb. 14 Hall: Feb. 1 - Mar. 30 Tom Green: Dec. 15 - Feb. 14 Hansford: Nov. 15 - Apr. 30 Upton: Nov. 15 - Apr. 30 Hardeman: Dec. 15 - Feb. 14 Uvalde: Dec. 15 - Feb. 14 Hartley: Nov. 15 - Apr. 30 Val Verde: Nov. 15 - Jan. 14, or Feb. l - Mar. 30 Haskell: Dec. 15 - Feb. 14 Ward: Nov. 1 - Apr. 14, or Nov. 15 -Apr. 30 Hockley: Nov. 1 - Apr. 14, or Nov. 15 - Apr. 30 Wichita: Dec. 15 - Feb. 14 Howard: Nov. 15 - Apr. 30 Wilbarger: Dec. 15 - Feb. 14 uudspeth: Nov. 1 - May 14 Winkler: Nov. l - Apr. 30, or Nov. 15 - May 14 :chinson: Nov. 15 - Apr. 30 Yoakum: Nov. l - Apr. 30, or Nov. 15 - May 14 Irion: Dec. 15 - Feb. 14 Young: Dec. 15 - Feb. 14 Jeff Davis: Nov. l - Apr. 30 or Nov. 15 - May 14 Wheeler: Jan. 1 - Mar. 30, or Dec. 1 - Feb. 28 Jones: Dec. 15 - Feb. 14 Zavala: Dec. 15 - Feb. 14 Page 45 Construction General Permit TPDES General Permit TXR1 50000 Appendix B: Erosivity Index (EI) Zones in Texas �,.."* s �• r � � • F 4-' Adapted_from Chapter 2 of USDA Agriculture Handbook 703: "Predicting Soil Erosion by Water: A Glade to Conservation Planning lVith the Revised Universal Soil Loss Equation (RUSLE), " U.S. Department of Agriculture, Agricultural Research Service Page 46 Construction General Permit Appendix C: Isoerodent Map TPDES General Permit TXR 150000 Adapted fi•orn Chapter 2 of USDA Agriculture Handbook 703: "Predicting Soil Erosion bi, Id "ater: A Guide to Conservation Planning IFith the Revised Universal Soil Loss Equation (RUSLE), " U.S. Department of Agriculture, Agricultural Research Service Page 47 Construction General Permit 89 90 91 92 93 94 95 96 97 106 TPDES General Permit TXR 150000 Appendix D: Erosivity Indices for El Zones in Texas Periods: * Each period begins on the date listed in the table above and lasts until the day before the following period. The final period begins on December 15 and ends on December 31. Table adapted from Chapter Z of USDA Agriculture Handbook 703. "Predicting Soil Erosion b), Water. A Guide to Conservation Pianning With the Revised Universal Soil Loss Equation (RUSLE), " U.S. Department of Agriculture, Agricultural Research Service MMMMMMMM MM MM MMMIM MM MMMM oo� � MM MMMM m�aMMMMMMMMM MM MM MMMM * Each period begins on the date listed in the table above and lasts until the day before the following period. The final period begins on December 15 and ends on December 31. Table adapted from Chapter Z of USDA Agriculture Handbook 703. "Predicting Soil Erosion b), Water. A Guide to Conservation Pianning With the Revised Universal Soil Loss Equation (RUSLE), " U.S. Department of Agriculture, Agricultural Research Service Construction General Permit Attachment 1 TPDES General Permit TXR150000 SMALL CONSTRUCTION SITE NOTICE: LOW POTENTIAL FOR EROSION FOR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 The following information is posted in compliance with Part II.E.I. of the TCEQ General Permit Number TXR150000 for discharges of storm water runoff from small construction sites automatically authorized based on low rainfall erosivity. Additional information regarding the TCEQ storm water permit program may be found on the internet at: htip://ww,,N/.teeg.state.tx.us/nav/permits/wq_construction.htmi Operator Name: Contact Name and Phone Number: Project Description: (Physical address or description of the site =s location, estimated start date and projected end date, or date that disturbed soils will be stabilized) For Small Construction Sites Authorized Under Part I.I.E. l., the tollowmg eertittcation must De compietea: I (Typed or Printed Name Person Completing This Certification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an automatic authorization based on low rainfall erosivity under Part II.E.1. of TPDES General Permit TXR150000 and agree to comply with the terms of this permit. Construction activities at this site shall occur within a time period listed in Appendix A of the TPDES general permit for this county, that period beginning on and ending on 1 understand that if construction activities continue past this period, all storm water runoff rmust be authorized under a separate provision of the general permit. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4. I am aware there are significant penalties for providing false information or for conducting unauthorized discharges, including the possibility of fine and imprisonment for knowing violations. Signature and Title Page 49 Date Date Notice Removed MS4 operator notified per Pant 1JYJ Construction General Permit Attachment 2 TPDES General Permit TXR150000 SMALL CONSTRUCTION SITE NOTICE F OR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL, PENT TXR150000 The following information is posted in compliance with Part II.E.2. of the TCEQ General Permit Number TXR150000 for discharges of storm water runoff from small construction sites. Additional information regarding the TCEQ storm water permit program may be found on the internet at: http://v,rww.tceq.state.tx.us/nav/permits/wq_consti,uctlon.html For Small Construction Activities Authorized Under Part ILE.2. (Obtaining Authorization to Discharge) the following certification must be completed: I _ (Typed or Printed Name Person Completing This Certification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part ILD.2. of TPDES General Permit TXRI 50000 and agree to comply with the terms of this permit. A storm water pollution prevention plan has been developed and will be implemented prior to construction, according to permit requirements. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4. I am aware there are significant penalties for providing false information or for conducting unauthorized discharges, including the possibility of fine and imprisonment for knowing violations. Signature and Title Page 50 Date Date Notice Removed MS4 operator notified per Part H. F.3. ed start disturbed ration Plan: For Small Construction Activities Authorized Under Part ILE.2. (Obtaining Authorization to Discharge) the following certification must be completed: I _ (Typed or Printed Name Person Completing This Certification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part ILD.2. of TPDES General Permit TXRI 50000 and agree to comply with the terms of this permit. A storm water pollution prevention plan has been developed and will be implemented prior to construction, according to permit requirements. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4. I am aware there are significant penalties for providing false information or for conducting unauthorized discharges, including the possibility of fine and imprisonment for knowing violations. Signature and Title Page 50 Date Date Notice Removed MS4 operator notified per Part H. F.3. Construction General Permit Attachment 3 Q �M-b§ TPDES General Permit TXR150000 LARGE CONSTRUCTION SITS NOTICE FOR THE Texas Commission on Environmental Qualitv (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 "SECONDARY OPERA TOR " NOTICE This notice applies to secondary operators of construction sites operating under Part II.E.3. of the TPDES General Permit Number TXR1 50000 for discharges of storm water runoff from construction sites equal to or greater than five acres, including the larger common plan of development. The information on this notice is required in Part III.E.2. of the general permit. Additional information regarding the TCEQ storm water permit program may be found on the internet at: http: / /www.tceq.state.tx.us /nav /permits /sw permits.html For Large Construction Activities Authorized Under Part II.E.3. (Obtaining Authorization to Discharge) the following certification must be completed: I (Typed or Printed Name Person Completing This Certification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part II.E.2. of TPDES General Permit TXR150000 and agree to comply with the terms of this permit. A storm water pollution prevention plan leas been developed and will be implemented prior to construction, according to permit requirements. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4. I am aware there are significant penalties for providing false information or for conducting unauthorized discharges, including the possibility of fine and imprisonmentforknowing violations. Signature and Title Page 51 Date Date Notice Removed MS4 operator notified per Part H. F.3. Construction General Permit Attachment 4 TPDES General Permit TXR150000 LARGE CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 "PRIMARY OPERATOR" NOTICE This notice applies to construction sites operating under Part II.E.3. of the TPDES General Permit Number TXRI 50000 for discharges of storm water runoff from construction sites equal to or greater than five acres. including the larger common plan of development. The information on this notice is required in Part III.E.2. of the general permit. This notice shall be posted along with a copy of the signed Notice of Intent (NOI), as applicable. Additional information regarding the TCEQ storm water permit program may be found on the internet at: http://viwmi.teeq .state.tx.us/nav/permits/w, permits.html ber: scription of the Wgjected end Led. ition Plan: Page 52 Appendix M Concrete Batch Plant Requirements / DMR Report This Appendix contains information regarding the use of Supporting Concrete Batch Plants for Construction Activities and copies of the DMR Report required for Concrete Batch Plants. Page 1 of 7 Storm Water Runoff from Concrete Batch Plants Discharges of storm water runoff from concrete batch plants at regulated construction sites may be authorized under the provisions of this general permit provided that the following requirements are met for concrete batch plant(s) authorized under this permit. If discharges of storm water runoff from concrete batch plants are not covered under this general permit, then discharges must be authorized under an alternative general permit or individual permit. This permit does not authorize the discharge or land disposal of any wastewater from concrete batch plants at regulated construction sites. Authorization for these wastes must be obtained under an individual permit or an alternative general permit. Section A. Benchmark Sampling Requirements Operators of concrete batch plants authorized under this general permit must sample the storm water runoff from the concrete batch plants according to the requirements of this section of this general permit, and must conduct evaluations on the effectiveness of the SWP3 based on the following benchmark monitoring values: Benchmark Benchmark Sampling Sample Type Parameter Value Frequency Oil and Grease 15 mg /L 1 /quarter ( *1)( *2) Grab ( *3) Total Suspended 100 mg /L 1 /quarter ( *1)( *2) Grab ( *3) Solids pH 6.0-9.0 1 /quarter ( *1)( *2) Grab ( *3) Standard Units Total Iron 1.3 mg /L 1 /quarter( *1)( *2) Grab ( *3) ( *1) When discharge occurs. Sampling is required within the first 30 minutes of discharge. If it is not practicable to take the sample, or to complete the sampling, within the first 30 minutes, sampling must be completed within the first hour of discharge. If sampling is not completed within the first 30 minutes of discharge, the reason must be documented and attached to all required reports and records of the sampling activity. ( *2) Sampling must be conducted at least once during each of the following periods. The first sample must be collected during the first full quarter that a storm water discharge occurs from a concrete batch plant authorized under this general permit. January through March April through June July through September October through December Page 2 of 7 For projects lasting less than one full quarter, a minimum of one sample shall be collected, provided that a storm water discharge occurred at least once following submission of the NOI or following the date that automatic authorization was obtained under Section II.E.2., and prior to terminating coverage. ( *3) A grab sample shall be collected from the storm water discharge resulting from a storm event that is at least 0.1 inches of measured precipitation that occurs at least 72 hours from the previously measurable storm event. The sample shall be collected downstream of the concrete batch plant, and where the discharge exits any BMPs utilized to handle the runoff from the batch plant, prior to commingling with any other water authorized under this general permit. 2. The permittee must compare the results of sample analyses to the benchmark values above, and must include this comparison in the overall assessment of the SWP3's effectiveness. Analytical results that exceed a benchmark value are not a violation of this permit, as these values are not numeric effluent limitations. Results of analyses are indicators that modifications of the SWP3 should be assessed and may be necessary to protect water quality. The operator must investigate the cause for each exceedance and must document the results of this investigation in the SWP3 by the end of the quarter following the sampling event. The operator's investigation must identify the following: (a) any additional potential sources of pollution, such as spills that might have occurred, (b) necessary revisions to good housekeeping measures that are part of the SWP3, (c) additional BMPs, including a schedule to install or implement the BMPs, and (d) other parts of the SWP3 that may require revisions in order to meet the goal of the benchmark values. Background concentrations of specific pollutants may also be considered during the investigation. If the operator is able to relate the cause of the exceedance to background concentrations, then subsequent exceedances of benchmark values for that pollutant may be resolved by referencing earlier findings in the SWP3. Background concentrations may be identified by laboratory analyses of samples of storm water runon to the permitted facility, by laboratory analyses of samples of storm water run -off from adjacent non - industrial areas, or by identifying the pollutant is a naturally occurring material in soils at the site. Best Management Practices (BMPs) and SWP3 Requirements Minimum Storm Water Pollution Prevention Plan (SWP3) Requirements - The following are required in addition to other SWP3 requirements listed in this general permit (including, but not limited to Part III.F.7. of this permit): Page 3 of 7 Description of Potential Pollutant Sources - The SWP3 must provide a description of potential sources (activities and materials) that may reasonably be expected to affect the quality of storm water discharges associated with concrete batch plants authorized under this permit. The SWP3 must describe practices that that will be used to reduce the pollutants in these discharges to assure compliance with this general permit, including the protection of water quality, and must ensure the implementation of these practices. The following must be developed, at a minimum, in support of developing this description: (a) Drainage - The site map must include the following information: (1) the location of all outfalls for storm water discharges associated with concrete batch plants that are authorized under this permit; (2) a depiction of the drainage area and the direction of flow to the outfall(s); (3) structural controls used within the drainage area(s); (4) the locations of the following areas associated with concrete batch plants that are exposed to precipitation: vehicle and equipment maintenance activities (including fueling, repair, and storage areas for vehicles and equipment scheduled for maintenance); areas used for the treatment, storage, or disposal of wastes; liquid storage tanks; material processing and storage areas; and loading and unloading areas; and (5) the locations of the following: any bag house or other dust control device(s); recycle /sedimentation pond, clarifier or other device used for the treatment of facility wastewater (including the areas that drain to the treatment device); areas with significant materials; and areas where major spills or leaks have occurred. Inventory of Exposed Materials - A list of materials handled at the concrete batch plant that may be exposed to storm water and that have a potential to affect the quality of storm water discharges associated with concrete batch plants that are authorized under this general permit. Spills and Leaks - A list of significant spills and leaks of toxic or hazardous pollutants that occurred in areas exposed to storm water and that drain to storm water outfalls associated with concrete Page 4 of 7 batch plants authorized under this general permit must be developed, maintained, and updated. Sampling Data - A summary of existing storm water discharge sampling data must be maintained, if available. Measures and Controls - The SWP3 must include a description of management controls to regulate pollutants identified in the SWP3's "Description of Potential Pollutant Sources" from Part IV.13.1.(a) of this permit, and a schedule for implementation of the measures and controls. This must include, at a minimum: Good Housekeeping - Good housekeeping measures must be developed and implemented in the area(s) associated with concrete batch plants. Operators must prevent or minimize the discharge of spilled cement, aggregate (including sand or gravel), settled dust, or other significant materials from paved portions of the site that are exposed to storm water. Measures used to minimize the presence of these materials may include regular sweeping or other equivalent practices. These practices must be conducted at a frequency that is determined based on consideration of the amount of industrial activity occurring in the area and frequency of precipitation, and shall occur at least once per week when cement or aggregate is being handled or otherwise processed in the area. Operators must prevent the exposure of fine granular solids, such as cement, to storm water. Where practicable, these materials must be stored in enclosed silos, hoppers or buildings, in covered areas, or under covering. Spill Prevention and Response Procedures - Areas where potential spills that can contribute pollutants to storm water runoff, and the drainage areas from these locations, must be identified in the SWP3. Where appropriate, the SWP3 must specify material handling procedures, storage requirements, and use of equipment. Procedures for cleaning up spills must be identified in the SWP3 and made available to the appropriate personnel. Inspections - Qualified facility personnel (i.e., a person or persons with knowledge of this general permit, the concrete batch plant, and the SWP3 related to the concrete batch plant(s) for the site) must be identified to inspect designated equipment and areas of the facility specified in the SWP3. The inspection frequency must be specified in the SWP3 based upon a consideration of the level of Page 5 of 7 concrete production at the facility, but must be a minimum of once per month while the facility is in operation. The inspection must take place while the facility is in operation and must, at a minimum, include all areas that are exposed to storm water at the site, including material handling areas, above ground storage tanks, hoppers or silos, dust collection /containment systems, truck wash down and equipment cleaning areas. Follow -up procedures must be used to ensure that appropriate actions are taken in response to the inspections. Records of inspections must be maintained and be made readily available for inspection upon request. Employee Training - An employee training program must be developed to educate personnel responsible for implementing any component of the SWP3, or personnel otherwise responsible for storm water pollution prevention, with the provisions of the SWP3. The frequency of training must be documented in the SWP3, and at a minimum, must consist of one training prior to the initiation of operation of the concrete batch plant. Record Keeping and Internal Reporting Procedures - A description of spills and similar incidents, plus additional information that is obtained regarding the quality and quantity of storm water discharges, must be included in the SWP3. Inspection and maintenance activities must be documented and records of those inspection and maintenance activities must be incorporated in the SWP3. Management of Runoff - The SWP3 shall contain a narrative consideration for reducing the volume of runoff from concrete batch plants by diverting runoff or otherwise managing runoff, including use of infiltration, detention ponds, retention ponds, or reusing of runoff. Comprehensive Compliance Evaluation - At least once per year, one or more qualified personnel (i.e., a person or persons with knowledge of this general permit, the concrete batch plant, and the SWP3 related to the concrete batch plant(s) for the site) shall conduct a compliance evaluation of the plant. The evaluation must include the following. Visual examination of all areas draining storm water associated with regulated concrete batch plants for evidence of, or the potential for, pollutants entering the drainage system. These include but are not limited to: cleaning areas, material handling areas, above ground storage tanks, hoppers or silos„ dust collection /containment systems, and truck wash down and equipment cleaning areas. Measures implemented to reduce pollutants in runoff (including Page 6 of 7 structural controls and implementation of management practices) must be evaluated to determine if they are effective and if they are implemented in accordance with the terms of this permit and with the permittee's SWP3. The operator shall conduct a visual inspection of equipment needed to implement the SWP3, such as spill response equipment. Based on the results of the evaluation, the following must be revised as appropriate within two weeks of the evaluation: the description of potential pollutant sources identified in the SWP3 (as required in Part IV.B.1., "Description of Potential Pollutant Sources "); and pollution prevention measures and controls identified in the SWP3 (as required in Part IV.B.2., "Measures and Controls "). The revisions may include a schedule for implementing the necessary changes. The permittee shall prepare and include in the SWP3 a report summarizing the scope of the evaluation, the personnel making the evaluation, the date(s) of the evaluation, major observations relating to the implementation of the SWP3, and actions taken in response to the findings of the evaluation. The report must identify any incidents of noncompliance. Where the report does not identify incidences of noncompliance, the report must contain a statement that the evaluation did not identify any incidence(s), and the report must be signed according to 30 TAC Section 305.128, relating to Signatories to Reports. The Comprehensive Compliance Evaluation may substitute for one of the required inspections delineated in Part IV.B.2.(c) of this general permit. Prohibition of Wastewater Discharges Wastewater discharges associated with concrete production including wastewater disposal by land application are not authorized under this general permit. These wastewater discharges must be authorized under an alternative TCEQ water quality permit or otherwise disposed of in an authorized manner. Discharges of concrete truck washout at construction sites may be authorized if conducted in accordance with the requirements of Part V of this general permit. Page 7 of 7 Concrete Truck Wash Out Requirements This general permit authorizes the wash out of concrete trucks at construction sites regulated under Sections II.E.1., 2., and 3. of this general permit, provided the following requirements are met. Authorization is limited to the land disposal of wash out water from concrete trucks that are associated with off -site production facilities. Wash out water associated with on -site concrete production facilities must be authorized under a separate TCEQ general permit or individual permit. 1. Direct discharge of concrete truck wash out water to surface water in the state, including discharge to storm sewers, is prohibited by this general permit. 2. Concrete truck wash out water shall be discharged to areas at the construction site where structural controls have been established to prevent direct discharge to surface waters, or to areas that have a minimal slope that allow infiltration and filtering of wash out water to prevent direct discharge to surface waters. Structural controls may consist of temporary berms, temporary shallow pits, temporary storage tanks with slow rate release, or other reasonable measures to prevent runoff from the construction site. 3. Wash out of concrete trucks during rainfall events shall be minimized. The direct discharge of concrete truck wash out water is prohibited at all times, and the operator shall insure that its BMPs are sufficient to prevent the discharge of concrete truck washout as the result of rain. 4. The discharge of wash out water shall not cause or contribute to groundwater contamination. 5. If a SWP3 is required to be implemented, the SWP3 shall include concrete wash out areas on the associated map. BATCH PLANT MATERIAL MANAGEMENT Material management is important in that the best way to avoid a problem is prevention. On a construction site, the material storage area(s) can become a major source of risk due to possible mishandling of materials or accidental spills. An inventory of the material storage area the potential to come into contact with storm water. This will help raise your awareness and assist in planning effective controls. Oil & Grease SAMPLE xxxxxxx MEASUREMENT ;.S�iMRLE xxtpx #x REQU)RNIENT pHSAMPLE xxxxxxx MEASUREMENT SAMPLE �.SUREME PRINCIPA OFFICER OF Y xxxxxxx � xxxxxxx xxxxxxx � xxxxxxx TE EXECUTIVE r AREA OFFICER OR AUTHORIZED I CODE AGENT m g/l S.U. TE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) EPA Form 3320 -1 (3 -99) (REPLACES EPA FORM T -40 WHICH MAY NOT BE USED) PAGE OF Form Approved OMB No. 2046 -004 Page 34 Attu > ent 3 TPDES General Pen-nit' .150000 CONCRETE BATCH FACILITIES STW/ TXR15 1 CO PERMITTEE NAMEIADDRESS (include Facility NannelLocation if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM NOTE: Enter your permit number in the NAME (NPDES) DISCHARGE MONITORING REPORT (DMR) underlined space in the upper right hand 2 -16 17 -19) corner of this page. Example: STWITXR15 00123! CO ADDRESS kQISCHARQLUUM111M- Mail to: TCEO (MC 212) 1 PERMIT NU�i�P P.O. Box 13087 FACILITY MONITORING PERIOD Austin, TX 78711 -3087 LOCATION YEAR MO DAY YEAR MO DAY 01 01 12 31 1(20-21) ❑ (22 -23) (24 -25} (26 -27) (28 -29} 30 -31 PARAMETER (3 Card Only) QUANTITY OR LOADING (4 Card Only) QUALITY OR CONCENTRATION NO. FREQUENCY OF SAMPLE (32 -37) 46 -53 ( ) (54 -51} 38 -45 ( ) (4053} (54 -E1) EX ANALYSIS TYPE (62 -63) (64 -68) (69 -70) AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXMUM UNITS Total SAMPLE xxxxxxx xxxxxxx xxxxxxx xxxxxxx Suspended MEASUREMENT xxxxxxx Solids g SAMPLE ` 9tY��r Grate' Oil & Grease SAMPLE xxxxxxx MEASUREMENT ;.S�iMRLE xxtpx #x REQU)RNIENT pHSAMPLE xxxxxxx MEASUREMENT SAMPLE �.SUREME PRINCIPA OFFICER OF Y xxxxxxx � xxxxxxx xxxxxxx � xxxxxxx TE EXECUTIVE r AREA OFFICER OR AUTHORIZED I CODE AGENT m g/l S.U. TE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) EPA Form 3320 -1 (3 -99) (REPLACES EPA FORM T -40 WHICH MAY NOT BE USED) PAGE OF Form Approved OMB No. 2046 -004 Page 34 Appendix N Spill Prevention and Response Procedures, Contact Numbers and Spill Response Forms Spill Prevention and Response Procedures - Areas where potential spills that can contribute pollutants to storm water runoff, and the drainage areas from these locations, must be identified in the SWP3. Where appropriate, the SWP3 must specify material handling procedures, storage requirements, and use of equipment. Procedures for cleaning up spills must be identified in the SWP3 and made available to the appropriate personnel. SPILL PREVENTION AND RESPONSE Consistent with the general pen-nit requirements, all potential pollutants will be handled and disposed of in a manner that does not cause contamination of storm water. Non - sediment pollutants that may be present during construction activities include: • Petroleum products including fuel, lubricants, hydraulic fluids, and form oils • Polymer used for soil stabilization • Water treatment chemicals (coagulant, acid, sodium bicarbonate) • Concrete • Paints • Fertilizers These materials, and other materials used during construction with the potential to impact storm water, will be stored, managed, used, and disposed of in a manner that minimizes the potential for releases to the environment and especially into storm water. Emergency contacts for the project are included at the end of this section. General Materials Handling Practices The following general practices will be used throughout the project to reduce the potential for spills. • Potential pollutants will be stored and used in a manner consistent with the manufacturer's instructions in a secure location. To the extent practicable, material storage areas should not be located near storm drain inlets and should be equipped with covers, roofs, or secondary containment as needed to prevent storm water from contacting stored materials. Chemicals that are not compatible (such as sodium bicarbonate and hydrochloric acid) shall be stored in segregated areas so that spilled materials cannot combine and react. • Materials disposal will be in accordance with the manufacturer's instructions and applicable local, state, and federal regulations. • Materials no longer required for construction will be removed from the site as soon as practicable. • Adequate garbage, construction waste, and sanitary waste handling and disposal facilities will be provided to the extent necessary to keep the site clear of obstruction and BMPs clear and functional. Specific Materials Handling Practices • All pollutants, including waste materials and demolition debris, that occur on -site during construction will be handled in a way that does not contaminate storm water. • All chemicals including liquid products, petroleum products, water treatment chemicals, and wastes stored on site will be covered and contained and protected from vandalism. • Maintenance and repair of all equipment and vehicles involving oil changes, hydraulic system drain down, de- greasing operations, fuel tank drain down and removal, and other activities which may result in the accidental release of contaminants, will be conducted under cover during wet weather and on an impervious surface to prevent the release of contaminants onto the ground. Materials spilled during maintenance operations will be cleaned up immediately and properly disposed of. • Wheel wash water will be settled and discharged on site by infiltration. Wheel wash water will not be discharged to the storm water system or the storm water treatment system. • Application of agricultural chemicals, including fertilizers and pesticides, will be conducted in a manner and at application rates that will not result in loss of chemical to storm water runoff. Manufacturers' recommendations will be followed for application rates and procedures. • pH- modifying sources will be managed to prevent contamination of runoff and storm water collected on site. The most common sources of pH- modifying materials are bulk cement, cement kiln dust (CKD), fly ash, new concrete washing and curing waters, waste streams generated from concrete grinding and sawing, exposed aggregate processes, and concrete pumping and mixer washout waters. Spill Response The primary objective in responding to a spill is to quickly contain the material(s) and prevent or minimize their migration into storm water runoff and conveyance systems. If the release has impacted on -site storm water, it is critical to contain the released materials on site and prevent their release into receiving waters. If a spill of pollutants threatens storm water at the site, the spill response procedures outlined below must be implemented in a timely manner to prevent the release of pollutants. • The site superintendent will be notified immediately when a spill, or the threat of a spill, is observed. The superintendent will assess the situation and determine the appropriate response. • If spills represent an imminent threat of escaping project site and entering the receiving waters, facility personnel will respond immediately to contain the release and notify the superintendent after the situation has been stabilized. • If oil sheen is observed on surface water (e.g., settling ponds, detention pond, and swales), absorbent pads and /or booms will be applied to contain and remove the oil. The source of the oil sheen will also be identified and removed or repaired as necessary to prevent further releases. • The site superintendent, or his designee, will be responsible for completing the spill reporting form and for reporting the spill to the appropriate state or local agency (see Forms at the end of this section). Notification In the event of a spill, make the appropriate notification(s) consistent with the following procedures: • Any spill of oil which 1) violates water quality standards, 2) produces a "sheen" on a surface water, or 3) causes a sludge or emulsion must be reported immediately by telephone to the National Response Center Hotline. • Any oil, hazardous substance, or hazardous waste release which exceeds the reportable quantity *see below for reference* must be reported immediately by telephone to the National Response Center Hotline. • Any spill of oil or hazardous substance to waters of the state must be reported immediately by telephone to the EPA National Response Center. Reportable Quantities Quick Reference Material Released to Reportable Quantity Engine Oil, Fuel Hydraulic and Brake Fluid Land / Water 25 Gallons Visible Sheen Battery Acid Antifreeze Gasoline Engine Degreasers Air / Land / Water 100 lbs Refrigerant Air 1 lb SPILL RESPONSE CONTACT NUMBERS:: EPA NATIONAL RESPONSE CENTER (800) 424 -8802 TEXAS COMIVIIISSION ON ENVIRONMENTAL QUALITY (TCEQ) STATE OF TEXAS SPILL — REPORTING HOTLINE (800) 832 -8224 Spill Report Form LOCATION OF SPILL AT PROJECT: Date: Time: Regulatory agencies notified (date, time, person, agency, and how): Material spilled: Quantity spilled: Source: Cause: Extent of injuries (if any): Immediate remedial actions taken at time of spill: Measures taken or planned to prevent recurrence: Was Storm Water Pollution Prevention Plan "SWPPP" Updated: Was Erosion Control Plan updated to show Spill Location: This report prepared by: (Signature) (Date) (Job title) Appendix O Definitions Definitions Arid Areas - Areas with an average annual rainfall of 0 to 10 inches Best Management Practices (BMPs) - Schedules of activities, prohibitions of practices, maintenance procedures, structural controls, local ordinances, and other management practices to prevent or reduce the discharge of pollutants. BMPs also include treatment requirements, operating procedures, and practices to control construction site runoff, spills or leaks, waste disposal, or drainage from raw material storage areas. Commencement of Construction - The initial disturbance of soils associated with clearing, grading, or excavation activities, as well as other construction - related activities (e.g., stockpiling of fill material, demolition) Common Plan of Development - A construction activity that is completed in separate stages, separate phases, or in combination with other construction activities. A common plan of development (also known as a "common plan of development or sale ") is identified by the documentation for the construction project that identifies the scope of the project, and may include plats, blueprints, marketing plans, contracts, building permits, a public notice or hearing, zoning requests, or other similar documentation and activities. A common plan of development does not necessarily include all construction projects within the jurisdiction of a public entity (e.g., a city or university). Construction of roads or buildings in different parts of the jurisdiction would be considered separate "common plans," with only the interconnected parts of a project being considered part of a "common plan" (e.g., a building and its associated parking lot and driveways, airport runway and associated taxiways, a building complex, etc.). Where discrete construction projects occur within a larger common plan of development or sale but are located '/ mile or more apart, and the area between the projects is not being disturbed, each individual project can be treated as a separate plan of development or sale, provided that any interconnecting road, pipeline or utility project that is part of the same "common plan" is not included in the area to be disturbed. Discharge - For the purposes of this permit, the drainage, release, or disposal of pollutants in storm water and certain non -storm water from areas where soil disturbing activities (e.g., clearing, grading, excavation, stockpiling of fill material, and demolition), construction materials or equipment storage or maintenance (e.g., fill piles, borrow area, concrete truck washout, fueling), or other industrial storm water directly related to the construction process (e.g., concrete or asphalt batch plants) are located. Edwards Aquifer - As defined under Texas Administrative Code § 213.3 of this title (relating to the Edwards Aquifer), that portion of an arcuate belt of porous, water - bearing, predominantly carbonate rocks known as the Edwards and Associated Limestone's in the Balcones Fault Zone trending from west to east to northeast in Kinney, Uvalde, Medina, Bexar, Comal, Hays, Travis, and Williamson Counties; and composed of the Salmon Peak Limestone, McKnight Formation, West Nueces Formation, Devil's River Limestone, Person Formation, Kainer Formation, Edwards Formation, and Georgetown Formation. The permeable aquifer units generally overlie the less- permeable Glen Rose Formation to the south, overlie the less- permeable Comanche Peak and Walnut Formations north of the Colorado River, and underlie the less- permeable Del Rio Clay regionally. Edwards Aquifer Recharge Zone - Generally, that area where the stratigraphic units constituting the Edwards Aquifer crop out, including the outcrops of other geologic formations in proximity to the Edwards Aquifer, where caves, sinkholes, faults, fractures, or other permeable features would create a potential for recharge of surface waters into the Edwards Aquifer. The recharge zone is identified as that area designated as such on official maps located in the offices of the Texas Commission on Environmental Quality and the appropriate regional office. The Edwards Aquifer Map Viewer, located at http: / /www.tceq.state.tx.us /compliance /field ops /eapp /ma pdisclaimer.htm1, can be used to determine where the recharge zone is located. Edwards Aquifer Contributing Zone - The area or watershed where runoff from precipitation flows down gradient to the recharge zone of the Edwards Aquifer. 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Indian Tribe - (from 40 CFR 122.2) any Indian Tribe, band, group, or community recognized by the Secretary of the Interior and exercising governmental authority over a Federal Indian Reservation. Large Construction Activity - Construction activities including clearing, grading, and excavating that result in land disturbance of equal to or greater than five (5) acres of land. Large construction activity also includes the disturbance of less than five (5) acres of total land area that is part of a larger common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than five (5) acres of land. Large construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the site (e.g., the routine grading of existing dirt roads, asphalt overlays of existing roads, the routine clearing of existing right -of- ways, and similar maintenance activities.) Municipal Separate Storm Sewer System (MS4) - A separate storm sewer system owned or operated by the United States, a state, city, town, county, district, association, or other public body (created by or pursuant to state law) having jurisdiction over the disposal of sewage, industrial wastes, storm water, or other wastes, including special districts under state law such as a sewer district, flood control or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, that discharges to surface water in the state. Notice of Change (NOC) - Written notification to the executive director from a discharger authorized under this permit, providing changes to information that was previously provided to the agency in a notice of intent form. Notice of Intent (NOI) - A written submission to the executive director from an applicant requesting coverage under this general permit. Notice of Termination (NOT) - A written submission to the executive director from a discharger authorized under a general permit requesting termination of coverage. Operator - The person or persons associated with a large or small construction activity that is either a primary or secondary operator as defined below: Primary Operator - the person or persons associated with a large or small construction activity that meets either of the following two criteria: (a) The person or persons have operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications; or (b) The person or persons have day -to -day operational control of those activities at a construction site that are necessary to ensure compliance with a storm water pollution prevention plan (SWP3) for the site or other permit conditions (e.g., they are authorized to direct workers at a site to carry out activities required by the SWP3 or comply with other permit conditions). Secondary Operator - The person whose operational control is limited to the employment of other operators or to the ability to approve or disapprove changes to plans and specifications. A secondary operator is also defined as a primary operator and must comply with the permit requirements for primary operators if there are no other operators at the construction site. Outfall - For the purpose of this permit, a point source at the point where storm water runoff associated with construction activity discharges to surface water in the state and does not include open conveyances Brock Environmental Services March 2008 connecting two municipal separate storm sewers, or pipes, tunnels, or other conveyances that connect segments of the same stream or other water of the U.S. and are used to convey waters of the U.S. Permittee - An operator authorized under this general permit. The authorization may be gained through submission of a notice of intent, by waiver, or by meeting the requirements for automatic coverage to discharge storm water runoff and certain non -storm water discharges. Point Source - (from 40 CFR §122.2) Any discernible, confined, and discrete conveyance, including but not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock concentrated animal feeding operation, landfill leachate collection system, vessel or other floating craft from which pollutants are, or may be, discharged. This term does not include return flows from irrigated agriculture or agricultural storm water runoff. Pollutant - Dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, filter backwash, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into any surface water in the state. The term "pollutant" does not include tail water or runoff water from irrigation or rainwater runoff from cultivated or uncultivated rangeland, pastureland, and farmland. For the purpose of this permit, the term "pollutant" includes sediment. Pollution - (from Texas Water Code §26.001(14)) The alteration of the physical, thermal, chemical, or biological quality of, or the contamination of, any surface water in the state that renders the water harmful, detrimental, or injurious to humans, animal life, vegetation, or property or to public health, safety, or welfare, or impairs the usefulness or the public enjoyment of the water for any lawful or reasonable purpose. Rainfall Erosivity Factor (R factor) - the total annual erosive potential that is due to climatic effects, and is part of the Revised Universal Soil Loss Equation (RUSLE). Semiarid Areas - areas with an average annual rainfall of 10 to 20 inches Separate Storm Sewer System - A conveyance or system of conveyances (including roads with drainage systems, streets, catch basins, curbs, gutters, ditches, man -made channels, or storm drains), designed or used for collecting or conveying storm water; that is not a combined sewer, and that is not part of a publicly owned treatment works (POTW). Small Construction Activity - Construction activities including clearing, grading, and excavating that result in land disturbance of equal to or greater than one (1) acre and less than five (5) acres of land. Small construction activity also includes the disturbance of less than one (1) acre of total land area that is part of a larger common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than one (1) and less than five (5) acres of land. Small construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the site (e.g., the routine grading of existing dirt roads, asphalt overlays of existing roads, the routine clearing of existing right -of -ways, and similar maintenance activities.) Storm Water (or Storm Water Runoff) - Rainfall runoff, snow melt runoff, and surface runoff and drainage. Storm Water Associated with Construction Activity - Storm water runoff from a construction activity where soil disturbing activities (including clearing, grading, excavating) result in the disturbance of one (1) or more acres of total land area, or are part of a larger common plan of development or sale that will result in disturbance of one (1) or more acres of total land area. Structural Control (or Practice) - A pollution prevention practice that requires the construction of a device, or the use of a device, to capture or prevent pollution in storm water runoff. Structural controls and practices may include but are not limited to: silt fences, earthen dikes, drainage swales, sediment traps, check dams, subsurface drains, storm drain inlet protection, rock outlet protection, reinforced soil retaining systems, gabions, and temporary or permanent sediment basins. Brock Environmental Services March 2008 Surface Water in the State - Lakes, bays, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, wetlands, marshes, inlets, canals, the Gulf of Mexico inside the territorial limits of the state (from the mean high water mark (MHWM) out 10.36 miles into the Gulf), and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, navigable or non - navigable, and including the beds and banks of all water - courses and bodies of surface water, that are wholly or partially inside or bordering the state or subject to the jurisdiction of the state; except that waters in treatment systems which are authorized by state or federal law, regulation, or permit, and which are created for the purpose of waste treatment are not considered to be water in the state. Temporary Stabilization - A condition where exposed soils or disturbed areas are provided a protective cover or other structural control to prevent the migration of pollutants. Temporary stabilization may include temporary seeding, geotextiles, mulches, and other techniques to reduce or eliminate erosion until either permanent stabilization can be achieved or until further construction activities take place. Waters of the United States - (from 40 CFR, Part122, Section 2) Waters of the United States or waters of the U.S. means: (a) All waters which are currently used, were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subject to the ebb and flow of the tide; (b) All interstate waters, including interstate wetlands; (c) All other waters such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds that the use, degradation, or destruction of which would affect or could affect interstate or foreign commerce including any such waters: (1) Which are or could be used by interstate or foreign travelers for recreational or other purposes; (2) from which fish or shellfish are or could be taken and sold in interstate or foreign commerce; or (3) Which are used or could be used for industrial purposes by industries in interstate commerce; (d) All impoundments of waters otherwise defined as waters of the United States under this definition; (e) Tributaries of waters identified in paragraphs (a) through (d) of this definition; (f) The territorial sea; and (g) Wetlands adjacent to waters (other than waters that are themselves wetlands) identified in paragraphs (a) through (f) of this definition. Waste treatment systems, including treatment ponds or lagoons designed to meet the requirements of CWA (other than cooling ponds as defined in 40 CFR '423.11 (m) which also meet the criteria of this definition) are not waters of the United States. This exclusion applies only to manmade bodies of water which neither were originally created in waters of the United States (such as disposal area in wetlands) nor resulted from the impoundment of waters of the United States. Waters of the United States do not include prior converted cropland. Notwithstanding the determination of an area =s status as prior converted cropland by any other federal agency, for the purposes of the Clean Water Act, the final authority regarding Clean Water Act jurisdiction remains with EPA. Brock Environmental Services March 2008