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E-Care Coppell-PN140219 Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: E-Care Emergency Center 330 S. Denton Tap Road Coppell, Texas in Dallas County 75019 214 878-6127 SWPPP Prepared For: SCMOB 330 S Denton Tap, LLC (Owner) 550 Bailey, Suite 255 Fort Worth, Texas 76107 Hill & Wilkinson Construction Group, Ltd. (Commercial General Contractor) 2703 Telecom Parkway, Suite 120 Richardson,Texas 75082 214 299-4361 214 299-4461/thankins@hill-wilkinson.com SWPPP Prepared By: Hill & Wilkinson Construction Group, Ltd. Tina Hankins 2703 Telecom Parkway, Suite 120 Richardson,Texas 75082 214 299-4361 214 299-4461/thankins@hill-wilkinson.com SWPPP Preparation Date: Prepared February 19, 2014 Estimated Project Dates: Project Start Date: February 24, 2014 Project Completion Date: November, 2014 EPA INSPECTOR'S CONSTRUCTION SITE CHECKLIST Did the SWPPP site description provide: 1. A description of potential pollutant sources. Yes No 2_ A description of the nature of the construction activity. Yes No 3. A description of the intended sequence of soil disturbance during Yes No major activities at the site. 4. An estimate of the total area of the site and the total area that will be Yes No disturbed. 5. Runoff coefficient estimale after construction activities. Yes No 6. Exisisting data describing the soil or quality of any discharge from Yes No the site. 7. General location map and a site map. Yes No ( Were the following items indicated on the site map? 1. Drainage patterns. Yes No 2.Approximate slopes anticipated after major grading. Yes No 3_Areas of soil disturbance_ Yes No 4. Outline of undisturbed areas. Yes No 5. Location major structural and nonstructural control location in Yes No SWPPP. 6. Areas that will be stabilized -- Yes No 7. Locations of off-site material, waste, borrow or equipment storage Yes No area_ 8. Surface waters,and the locations of storm water discharge to the Yes No surface water. 9. The location and description of any discharge associated with Yes No industrial activity other than construction_ 10. The name of the receiving waters and aerial extent of the wetland Yes No acreage at the site. 11. A copy of the permit requirements. Yes No 12. Information showing endangered or threatened species found in the Yes No proximity of the construction activity and if they may be affected by the storm water discharge. 13. Information if storm water discharges would affect property that is Yes No noted of eligible for listing on the National Register of Historical Places. 14_Did the plan include a description of the appropriate controls and Yes No measures that will be used at the site? Did the description and implementation of controls address the following items: A)Erosion and sediment controls 1. Were sediment controls designed to retain sediment on-site to the Yes No extent practical during the construction phase? 2. Were control measures properly selected, installed, and maintained Yes No in accordance with manufacturers specifications and good engineering practices? 3. Are off-site accumulations of sediment removal at frequency Yes No sufficient to maintain off-site inspects? 4. Is sediment removed from the sediment traps or sediment ponds Yes No when design capacity is reduced by 50%? 5. Is litter, construction debris, and construction chemicals exposed to Yes No storm water prevented from becoming a pollutant source from storm water discharge? 6. Are off-site storage areas used as part of the construction project Yes No addressed in the SWPPP? (Includes stockpiles of dirt, borrow areas, etc.) B) Storm Water Management Comments: C) Other controls 1_ Are solid materials including building materials being discharged? Yes No 2. is off-site vehicle trackin ag rid generation of dust minimized? Yes No 3. Did the SWPPP include a description of construction waste materials Yes No expected to be stored on-site and is kept updated? 4. Did the SWPPP include a description of controls to reduce pollutants Yes No from the above materials including storage practices to minimize exposure of the materials to storm water, and spill prevention and response? 5. Did the SWPPP include a description of pollutants from areas other Yes No than construction and a description of controls and measures that will be implemented al those sites to address pollutant discharges? 6. Did the SWPPP include a description of measures necessary to Yes No protect listed endangered or threatened species,or critical habitat, including ant terms or conditions that are imposed under the eligibility requirements of part I_B3e(4) of the permit? D) Approved state or local plans 1_ Did the permitee check to see if their SWPPP is consistent with Yes No requirements specified in applicable sediment and erosion site plans or site permits, or storm water management site plans or site permits approved by State,Tribal, or Local Officials? 2. Is the SWPPP updated as necessary to remain consistent with any Yes No changes applicable to protecting surface water resources in sediment and erosion site plans or site permits, or storm water management site plans or site permits approved by State,Tribal,or Local Officials for which the permitee received notice? 3. Are all erosion and sediment control measures and other protective Yes No measures identified in the SWPPP maintained and in effective operating condition? 4. When BMP problems were identified, was maintenance performed Yes No by the permitee before the next anticipated storm event, or as necessary to maintain consistent effectiveness of storm water controls? 5. Does the plan ensure and demonstrate compliance with applicable Yes No State and/or Local waste disposal, sanitary sewer or septic system regulations? 6. Are qualified personnel conducting inspections and were the Yes No qualified personnel named and their qualifications given? Did the inspector check (once every 2 weeks and within 24 hours of the end of a storm event that is 0.5 inches or greater): I. Disturbed areas of the construction site that have not been stabilized? Yes No 2. Areas used for storage of materials that are exposed to precipitation? Yes No 3. Structural control measures? Yes No 4. Locations where vehicles enter or exit the site? Yes No 5. Based on the inspection, are the site description and pollution Yes No measures identified updated within 7 calendar days? Did the inspection summary report include: I. The name of the inspector? Yes No 2. Qualifications of person making inspection? Yes No 3. The date(s) of the inspections? Yes No 4. Measures/areas inspected? Yes No 5. Major observed conditions relating to the implementation of the Yes No SWPPP? 6. Actions taken as a result of the inspections? Yes No 7. Where no incidents of noncompliance are reported, did the summary Yes No report contain a certification that the facility is in compliance with the SWPPP? 8. Did the plan identify and ensure the implementation of appropriate Yes No pollution prevention measures for the non-storm water components of the discharge? Stabilization Did the SWPPP include a description of interim and permanent Yes No stabilization practices for the site, including a schedule of when practices will be implemented? When stabilization practices are used, were the following records maintained and attached to the SWPPP: (Stabilization examples: temporary and permanent seeding,mulching,goo-textiles,sod stabilization,vegetative buffer strips) I. A record of the dates when major activities occurred? Yes No 2. When construction activities temporarily or permanently ceased on a Yes No portion of the site? I When stabilization measures are initiated? Yes No 4. Did stabilization occur<= 14 days after the construction activity in Yes No • that portion of the site temporarily or permanently ceased? 5. Did construction resume on a portion of the site within 21 days after Yes No activities ceased? (Note:If construction is to resume<21 days on a portion of land where activity temporarily ceased,then stabilization is not necessary.) 6. Did the SWPPP include a description of interim and permanent Yes No stabilization practices for the site, including a schedule of when practices will be implemented? Structural Practices I. Did the plan have a description of structural practices that would be Yes No implemented to limit runoff and the discharge of pollutants from exposed areas of the site? 2. Did the plan include a description of measures that will be installed Yes No and will remain before and after construction that will be used to control pollutants in the storm water? 3. Did the plan include an explanation of the technical basis that was Yes No used to select the practices to control Pollutants where flows exceed predevelopment levels? 4. Were velocity dissipation devices placed at discharge locations and Yes No along the length of any outfall channel to provide a non-erosive flow velocity from the structure to the water source?(ie no significant changes in the hydrological regime of the receiving water) Ate` TABLE OF CONTENTS Construction Pollution Prevention Plan (CPPP) 1. SWPP Certifications Owner/Contractor Permit Application,Construction Site Notices, and Plan Certification Form 2. Delegation Letters a. Owner b. Hill & Wilkinson c. Other Responsible Subcontractors 3. TPDES Storm Water Requirements and TXR 150000 4. Construction/BMP Schedule 5. Soil Description and Runoff Efficients (Geotechnical Report) 6. General Location Map 7. Nature of Construction Activity 8. Potential Pollutant Sources/Listing of Chemicals on Site a. Accidental Spills Report Form 9. Non Storm Water Discharges Associated 10. Plan Notification Log and Approved Drawings 11. Best Management Practice's Listing 12. Best Management Practices and SWPP Maintenance 13. Offsite Storage 14. Endangered Species and Historic Sites 15. Inspections and BMP Maintenance/Repair Log SECTION 1 SWPPP CERTIFICATIONS, OWNER/CONTRACTOR PERMIT APPLICATION, CONSTRUCTION SITE NOTICES, AND PLAN CERTIFICATION FORM 0 HILL &WILKINSON GENERAL CONTRACTORS 2703 TELECOM PARKWAY/SUITE 120/ RICHARDSON, TEXAS 75082 214.299.4300 PHONE/ 214.299.4444 FAX Certification Form City of Dallas Storm Water Management Dallas Texas 75040 RE: E-Care Emergency Center at 330 S. Denton Tap Road in Coppell, Texas — Dallas County 75019 A duly authorized representative must be identified and must sign the following certification statement: This Statement shall certify the following: • Storm Water Pollution Prevention Plan • Endangered Species Report • Historical Preservation Report • Soils Report I CERTIFY UNDER PENALTY OF LAW THAT THIS DOCUMENT AND ALL ATTACHMENTS WERE PREPARED UNDER MY C 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 SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION,INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWING VIOLATIONS. Owner/Operational Control Name: w/LG/A'M ,4- 67iJ /N Title: MAP/66e Signature X.��%vL ') , ,,14$043 Date: `e8 ao, 201y FOR SCMOB 330 S Denton Tap, LLC Name of Company/Agency Contractor/Day to Day Control N::ure aul riscoll c Title: Chief Executive Officer — Date: February 19, 2014 FOR ® Hill &Wilkinson Construction Group, Ltd. • www.hill-wilkinson.com II. (TCEQ) CERTIFICATION STATEMENT - SWPPP SIGNATURE The PERMITTEE WITH OPERATIONAL CONTROLS OVER CONSTRUCTION PLANS AND SPECIFICATIONS, including the ability to make modifications to those plans and specifications (e.g., the Developer or Owner) shall sign the following certification prior to the beginning of earth disturbing activities: "I 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 significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Project or Site: E-Care Emergency Center Contractor's Name: SCMOB 330 S Denton Tap, LLC I1/7/0‘40 Aidkilag() Signed 1Niit/4ri+ 4, 54/%401- A✓ $14N4 Printed Name/Title February 19, 2014 Date II. (TCEQ) CERTIFICATION STATEMENT - SWPPP SIGNATURE The PERMITTEE WITH OPERATIONAL CONTROLS OVER CONSTRUCTION PLANS AND SPECIFICATIONS, including the ability to make modifications to those plans and specifications (e.g., the Developer or Owner) shall sign the following certification prior to the beginning of earth disturbing activities: "I 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 significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Project or Site: E-Care Emergency Center Contractor's Name: Hill &Wilkinson Construction Group, Ltd. gned Paul Driscoll -CEO Printed Name/Title February 19, 2014 Date III. mow sAIMIM goimiM SMALL CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Stormwater Program TPDES GENERAL PERMIT TXR150000 The following information is posted in compliance with Part II.E.2. of the TCEQ General Permit Number TXR150000 for discharges of stormwater runoff from small construction sites. Additional information regarding the TCEQ stormwater permit program may be found on the interne at: http://www.tceq.state.tx.us/nav/permits/wq construction.html Operator Name: SCMOB 33o S Denton Tap, LLC Contact Name and Phone Number: Richard Cole Owner's Rep. 214 495-8267 project Description: Physical address or A Building addition will consist of a the design and construction of and description of the site's location, estimated start approximate io,000 square foot single story building,drive through and date and projected end date, or date that disturbed canopy as well associated pavements.on 1.32 acres soils will be stabilized Start Date:February 24,2014 Approximate Finish Date: November 2014 Location of Stormwater Pollution Prevention Plan: Jobsite Trailer located at 33o S.Denton Tap Road in Coppell,Texas 75019 in Dallas County For Small Construction Activities Authorized Under Part II.E.2. (Obtaining Authorization to Discharge) the following certification must be completed: I w/U'/? t A. (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 stormwater 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 21/./.4„0.. N/kE February19 2014 v(. /N� Date Date Notice Removed MS4 operator noted per Part II.F.3. iiiir _ ammiIIIIIIP VIM111111111111.11. SMALL CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Stormwater Program TPDES GENERAL PERMIT TXR150000 The following information is posted in compliance with Part II.E.2. of the TCEQ General Permit Number TXR150000 for discharges of stormwater runoff from small construction sites. Additional information regarding the TCEQ stormwater permit program may be found on the internet at: http://www.tceq.state.tx.us/nav/permits/wq_construction.html Operator Name: Hill&Wilkinson Construction Group, Ltd. Contact Name and Phone Number: Matthew Vea Superintendent Apr 1,2014 thru Nov.1,2014 214 878-7393 eject Description: Physical address or A Building addition will consist of a the design and construction of and description of the site's location, estimated start approximate io,000 square foot single story building,drive through and canopy as well associated pavements.on 1.32 acres date and projected end date, or date that disturbed soils will be stabilized Start Date:February 24,2014 Approximate Finish Date:October 2014 Location of-Stormwater Pollution Prevention Plan: Jobsite Trailer located at 33o S.Denton Tap Road in Coppell,Texas 75019 in County For Small Construction Activities Authorized Under Part II.E.2. (Obtaining Authorization to Discharge) the following certification must be completed: Paul Driscoll 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 stormwater 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. 4k ) --c ) Februa 19, 2014 Signature and Title C� 4 Date ry Date Notice Removed MS4 operator notified per Part H..F.3. SECTION 2 DELEGATION LETTERS A. OWNER B. HILL & WILKINSON C. OTHER RESPONSIBLE SUBCONTRACTORS SAND!AL ® CAPITAL BRINGING CAPITAL TO REAL ESTATE INVESTMENT February 20, 2014 Executive Director Via Certified Mail Article No. 7012 3050 0002 2069 5413 TCEQ Return Receipt Requested C/o Storm Water& Pretreatment Team Mail Code 228 P.O. Box 13087 Austin, Texas 78711-3087 Attn: Storm Water and General Permits Team Small Construction Site—E-Care Emergency Center 330 S. Denton Tap Road Coppell, Texas—Dallas County 75019 TPDES Storm Water General Permit No. TXR 150000—Small Construction Site Delegating an "Authorized Representative"—Effective March 5, 2013 Dear Executive Director: This letter is submitted pursuant to 30 TAC §305.128 and serves to designate the individual who occupies the named position below as authorized to sign reports, storm water pollution prevention plans, certifications or other information requested by the Director or required by the permit. I understand that the signatory delegation does not extend to Notice of Intent ("NOI") Forms, Notice of Termination ("NOT") Forms, Notice of Change ("NOC") Letters, and Construction Site Notices. The individual who occupies the following position is hereby authorized to sign reports and other information addressed by Part VI1.6 of TPDES General Permit TXR150000, effective March 5, 2013: Hill &Wilkinson Construction Group, Ltd. - Project Superintendent By signing this authorization, I confirm that I am a responsible corporate officer for SCMOB 330 S Denton Tap, LLC pursuant to 30 TAC §305.44 (a) (1) and provide the following certification required by this rule: For a corporation: by a responsible corporate officer. For the purpose of this section,a responsible corporate officer means:a Chief Executive Officer,secretary,treasurer,or vice-Chief Executive Officer 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 manager 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 a 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). "I 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 significant penalties for submitting false information,including the possibility of fine and imprisonment for knowing violations." 21/1/411‘)A%011" /'7AW, February 20,2014 Name— Title Date 550 BAILEY, SUITE 255 • FORT WORTH,TEXAS 76107 • 817.289.2610 • FAX 817.289.2614 11) HILL &WILKINSON GENERAL CONTRACTORS 2703 TELECOM PARKWAY/SUITE 120/ RICHARDSON, TEXAS 75082 214.299.4300 PHONE/ 214.299.4444 FAX February 19, 2014 Executive Director Via Certified Mail Article No. 7012 3050 0002 2069 5413 TCEQ Return Receipt Requested C/o Storm Water& Pretreatment Team Mail Code 228 P.O. Box 13087 Austin, Texas 78711-3087 Attn: Storm Water and General Permits Team Small Construction Site— E-Care Emergency Center 330 S. Denton Tap Road Coppell, Texas— Dallas County 75019 TPDES Storm Water General Permit No. TXR 150000—Small Construction Site Delegating an "Authorized Representative"—Effective March 5, 2013 Dear Executive Director: This letter is submitted pursuant to 30 TAC §305.128 and serves to designate the individual who occupies the named position below as authorized to sign reports, storm water pollution prevention plans, certifications or other information requested by the Director or required by the permit. I understand that the signatory delegation does not extend to Notice of Intent("NOI") Forms, Notice of Termination ("NOT") Forms, Notice of Change ("NOC") Letters, and Construction Site Notices. The individual who occupies the following position is hereby authorized to sign reports and other information addressed by Part VII.6 of TPDES General Permit TXR150000, effective March 5, 2013: Billy Haley - Project Superintendent February 24, 2014 Through April 1, 2014 By signing this authorization, I confirm that I am a responsible corporate officer for Hill &Wilkinson Construction Group, Ltd. pursuant to 30 TAC §305.44 (a) (1) and provide the following certification required by this rule: For a corporation: by a responsible corporate officer. For the purpose of this section,a responsible corporate officer means:a Chief Executive Officer,secretary,treasurer, or vice-Chief Executive Officer 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 manager 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 a 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). "I 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 persRns 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 significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." O February 19,2014 Name— Title Date �� it'T Paul Driscoll lit www.hill-wilkinson.com �}� 4)- HILL &WILKINSON GENERAL CONTRACTORS 2703 TELECOM PARKWAY/SUITE 120/ RICHARDSON, TEXAS 75082 214.299.4300 PHONE/ 214.299.4444 FAX February 19, 2014 Executive Director Via Certified Mail Article No. 7012 3050 0002 2069 5413 TCEQ Return Receipt Requested C/o Storm Water& Pretreatment Team Mail Code 228 P.O. Box 13087 Austin, Texas 78711-3087 Attn: Storm Water and General Permits Team Small Construction Site— E-Care Emergency Center 330 S. Denton Tap Road Coppell, Texas— Dallas County 75019 TPDES Storm Water General Permit No. TXR 150000—Small Construction Site Delegating an "Authorized Representative"— Effective March 5, 2013 Dear Executive Director: This letter is submitted pursuant to 30 TAC §305.128 and serves to designate the individual who occupies the named position below as authorized to sign reports, storm water pollution prevention plans, certifications or other information requested by the Director or required by the permit. I understand that the signatory delegation does not extend to Notice of Intent("NOI") Forms, Notice of Termination ("NOT") Forms, Notice of Change ("NOC") Letters, and Construction Site Notices. The individual who occupies the following position is hereby authorized to sign reports and other information addressed by Part VII.6 of TPDES General Permit TXR150000, effective March 5, 2013: Matthew Vea - Project Superintendent April 1, 2014 Through November 2014 By signing this authorization, I confirm that I am a responsible corporate officer for Hill &Wilkinson Construction Group, Ltd. pursuant to 30 TAC §305.44 (a) (1) and provide the following certification required by this rule: For a corporation: by a responsible corporate officer. For the purpose of this section, a responsible corporate officer means:a Chief Executive Officer,secretary,treasurer, or vice-Chief Executive Officer 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 manager 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 a 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). "I 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. 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U!'ss. ua :v ru IM GreuY4awwska vaw)urr�3% > Y4�TuYo:9 & g,� DELEGATION -SUBCONTRACTORS COMPANY NAME SCOPE OF WORK RESPONSIBILITY SECTION 3 TPDES STORM WATER REQUIREMENTS AND TXR 150000 Iw Texas Commission on Environmental Quality P.0,Box 13087,Austin,Texas 78711-3087 veN X • A ',� • GENERAL PERMIT TO DISCHARGE UNDER THE TEXAS POLLUTANT DISCHARGE ELIMINATION SYSTEM under provisions of Section 402 of the Clean Water Act and Chapter 26 of the Texas Water Code This permit supersedes and replaces TPDES General Permit No.TXR150000,issued March 5, 2008 Construction sites that discharge stormwater associated with construction activity located in the state of Texas may discharge to surface water in the state only according to monitoring requirements and other conditions set forth in this general permit,as well as the rules of the Texas Commission on Environmental Quality(TCEQ or Commission),the laws of the State of Texas,and other orders of the Commission 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 stormwater and certain non-stormwater discharges along the discharge route. This includes property belonging to but not limited to any individual,partnership,corporation or other entity. Neither does this general 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 necessary to use the discharge route. This general permit and the authorization contained herein shall expire at midnight,five years from the permit effective date. EFFECTIVE DATE: March 5, 2013 ISSUED DATE: F E B 1 9 2013 S At Por mission Construction General Permit TPDES General Permit TXR150000 TPDES GENERAL PERMIT NUMBER TXR150000 RELATING TO STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITIES Table of Contents Part I. Flow Chart and Definitions 5 Section A. Flow Chart to Determine Whether Coverage is Required 5 Section B. Definitions 6 Part II. Permit Applicability and Coverage 12 Section A. Discharges Eligible for Authorization 12 1. Stormwater Associated with Construction Activity 12 2. Discharges of Stormwater Associated with Construction Support Activities 12 3. Non-Stormwater Discharges 12 4. Other Permitted Discharges 13 Section B. Concrete Truck Wash Out 13 Section C. Limitations on Permit Coverage 13 1. Post Construction Discharges. 13 2. Prohibition of Non-Stormwater Discharges 13 3. Compliance With Water Quality Standards 13 4. Impaired Receiving Waters and Total Maximum Daily Load(TMDL) Requirements 14 5. Discharges to the Edwards Aquifer Recharge or Contributing Zone 14 6. Discharges to Specific Watersheds and Water Quality Areas 14 7. Protection of Streams and Watersheds by Other Governmental Entities 14 8. Indian Country Lands 14 9. Oil and Gas Production 15 10. Stormwater Discharges from Agricultural Activities 15 11. Endangered Species Act 15 12. Other 15 Section D. Deadlines for Obtaining Authorization to Discharge 15 1. Large Construction Activities 15 2. Small Construction Activities 15 Section E. Obtaining Authorization to Discharge 16 1. Automatic Authorization for Small Construction Activities With Low Potential for Erosion. 16 2. Automatic Authorization For All Other Small Construction Activities: 17 4"1* 3. Authorization for Large Construction Activities: 17 Page 2 Construction General Permit TPDES General Permit TXR150000 4. Waivers for Small Construction Activities. 18 5. Effective Date of Coverage 18 6. Notice of Change(NOC) 18 7. Signatory Requirement for NOI Forms,Notice of Termination(NOT)Forms,NOC Letters,and Construction Site Notices 19 8. Contents of the NOI 19 Section F. Terminating Coverage 20 1. Notice of Termination(NOT)Required 20 2. Minimum Contents of the NOT 20 3. Termination of Coverage for Small Construction Sites and for Secondary Operators at Large Construction Sites 20 4. Transfer of Operational Control 21 Section G. Waivers from Coverage 21 1. Waiver Applicability and Coverage 22 2. Steps to Obtaining a Waiver 22 3. Effective Date of Waiver 22 4 4. Activities Extending Beyond the Waiver Period 22 Section H. Alternative TPDES Permit Coverage 23 1. Individual Permit Alternative 23 2. Individual Permit Required 23 3. Alternative Discharge Authorization 23 Section I. Permit Expiration 23 Part III. Stormwater Pollution Prevention Plans(SWP3) 24 Section A. Shared SWP3 Development 24 Section B. Responsibilities of Operators 25 1. Secondary Operators and Primary Operators with Control Over Construction Plans and Specifications 25 2. Primary Operators with Day-to-Day Operational Control 25 Section C. Deadlines for SWP3 Preparation,Implementation,and Compliance 25 Section D. Plan Review and Making Plans Available 26 Section E. Revisions and Updates to SWP3s 26 Section F. Contents of SWP3 26 Section G. Erosion and Sediment Control Requirements Applicable to All Sites 34 Part IV. Stormwater Runoff from Concrete Batch Plants 35 Section A. Benchmark Sampling Requirements 35 Section B. Best Management Practices(BMPs)and SWP3 Requirements 37 Section C. Prohibition of Wastewater Discharges 39 Page 3 Construction General Permit TPDES General Permit TXR150000 Atow Part V. Concrete Truck Wash Out Requirements 40 Part VI. Retention of Records 40 Part VII.Standard Permit Conditions 40 Part VIII. Fees 41 Appendix A: Automatic Authorization 43 Appendix B: Erosivity Index(EI)Zones in Texas 45 Appendix C: Isoerodent Map 46 Appendix D: Erosivity Indices for EI Zones in Texas 47 C Page 4 Construction General Permit TPDES General Permit TXRi50000 Part I. Flow Chart and Definitions Section A. Flow Chart to Determine Whether Coverage is Required How much land will be disturbed?(*1) t <1 acre 1 or more acres (•1) (Al) v0 Do you meet the YES Will 5 or more • definition of ► acres be disturbed? "operator?"(*2) (*1) NO YES Permit Coverage Required • Prepare and implement SWP3 • Post Site Notice • Submit Copy of Site Notice to MS4 Operator ` Are you a"primary N0 operator?"(•2) r Permit Coverage Not Required,Unless Part Permit Coverage Required of a Larger Common • Prepare and Implement SWP3 Plan of Development • Submit NOI to TCEQ or Sale • Post Site Notice l i • Submit Copy of NOI to MS4 Operator (*1) To determine the size of the construction project,use the size of the entire area to be disturbed,and include the size of the larger common plan of development or sale,if the project is part of a larger project(refer to Part I.B., "Definitions,"for an explanation of"common plan of development or sale"). (*2) Refer to the definitions for"operator,"`primary operator,"and"secondary operator"in Part I., Section B.of this permit. Page 5 Construction General Permit TPDES General Permit TXRi50000 Section B. Definitions Arid Areas-Areas with an average annual rainfall of o 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 1/4 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. Construction Activity-Includes soil disturbance activities,including clearing,grading, and excavating; and 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). Regulated construction activity is defined in terms of small and large construction activity. Dewatering—The act of draining rainwater or groundwater from building foundations, vaults,and trenches. Discharge—For the purposes of this permit,the drainage,release,or disposal of pollutants in stormwater and certain non-stormwater 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 wash out,fueling),or other industrial stormwater directly related to the construction process (e.g.,concrete or asphalt batch plants)are located. Drought-Stricken Area—For the purposes of this permit,an area in which the National Oceanic and Atmospheric Administration's U.S.Seasonal Drought Outlook indicates for the period during which the construction will occur that any of the following conditions are likely: (1)"Drought to persist or intensify", (2)"Drought ongoing,some improvement", (3) "Drought likely to improve,impacts ease",or(4)"Drought development likely". See http://www.cpc.ncep.noaa.gov/products/expert assessment/seasonal drought.html. Edwards Aquifer-As defined under Texas Administrative Code(TAC)§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 Page 6 Construction General Permit TPDES General Permit TXRi50000 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(TCEQ)and the appropriate regional office. The Edwards Aquifer Map Viewer,located at http://www.tceq.texas.gov/compliance/field 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 No. 2304 of the Rio Grande Basin;all areas within Uvalde,Medina,Bexar,and Comal 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 No. 1403 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 No. 1216 of the Brazos River Basin.The contributing zone is illustrated on the Edwards Aquifer map viewer at http://www.tceq.texas.gov/compliance/field ops/eapp/mapdisclaimer.html. Effluent Limitations Guideline(ELG)—Defined in 40 Code of Federal Regulations (CFR) § 122.2 as a regulation published by the Administrator under§3o4(b)of the Clean Water Act(CWA)to adopt or revise effluent limitations. 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(for example,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(that is,evenly distributed,without large bare areas)perennial 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: (i) 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 BMPs,and informing the homeowner of the need for removal of temporary controls and the establishment of final stabilization. Page 7 Construction General Permit TPDES General Permit TXRi50000 Fullfillment of this requirement must be documented in the homebuilder's stormwater pollution prevention plan(SWP3). C. For construction activities on land used for agricultural purposes(such as 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 that are not being returned to their preconstruction agricultural use must meet the final 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 measures(for example,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%of the native background vegetative coverage within three years. Hyperchlorination 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. Impaired Water-A surface water body that is identified on the latest approved CWA §303(d)List as not meeting applicable state water quality standards.Impaired waters include waters with approved or established total maximum daily loads(TMDLs),and those where a TMDL has been proposed by TCEQ but has not yet been approved or established. Indian Country Land—(from 4o 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 running through the same. Indian Tribe-(from 4o 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(for example,the routine grading of existing dirt roads,asphalt overlays of existing roads,the routine clearing of existing right-of-ways,and similar maintenance activities.) Linear Project—Includes the construction of roads,bridges,conduits,substructures, pipelines,sewer lines,towers,poles,cables,wires,connectors,switching,regulating and transforming equipment and associated ancillary facilities in a long,narrow area. Minimize-To reduce or eliminate to the extent achievable using stormwater controls that are technologically available and economically practicable and achievable in light of best industry practices. Page 8 Construction General Permit TPDES General Permit TXRi50000 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,stormwater,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 on-site 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(for example,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 or entity,often the property owner,whose operational control is limited to: (a) the employment of other operators,such as a general contractor,to perform or supervise construction activities;or (b) the ability to approve or disapprove changes to construction plans and specifications, but who does not have day-to-day on-site operational control over construction activities at the site. Secondary operators must either prepare their own SWP3 or participate in a shared SWP3 that covers the areas of the construction site where they have control over the plans and specifications. If there is not a primary operator at the construction site,then the secondary operator is defined as the primary operator and must comply with the requirements for primary operators. Outfall-For the purpose of this permit,a point source at the point where stormwater 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 stormwater runoff and certain non-stormwater discharges. Page 9 Construction General Permit TPDES General Permit TXR150000 Point Source—(from 4o 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 stormwater 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(TWC)§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). Receiving Water-A"Water of the United States"as defined in 4o CFR§122.2 into which the regulated stormwater discharges. 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 stormwater;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(for example,the routine grading of existing dirt roads,asphalt overlays of existing roads,the routine clearing of existing right-of-ways,and similar maintenance activities.) Steep Slopes—Where a state,Tribe,local government,or industry technical manual(e.g. stormwater BMP manual)has defined what is to be considered a"steep slope",this permit's definition automatically adopts that definition.Where no such definition exists,steep slopes are automatically defined as those that are 15 percent or greater in grade. Stormwater(or Stormwater Runoff)-Rainfall runoff,snow melt runoff,and surface runoff and drainage. Stormwater Associated with Construction Activity-Stormwater 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 reduce or prevent pollution in stormwater Page 10 Construction General Permit TPDES General Permit TXRi50000 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 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. Total Maximum Daily Load(TMDL)-The total amount of a pollutant that a water body can assimilate and still meet the Texas Surface Water Quality Standards. Turbidity—A condition of water quality characterized by the presence of suspended solids and/or organic material. Waters of the United States-(from 40 CFR§122.2)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 4o CFR§423.11(m)which also meet the criteria of this definition)are not waters of the U.S. This exclusion applies only to manmade bodies of water which neither were originally created in waters of the U.S. (such as Page u Construction General Permit TPDES General Permit TXRi50000 disposal area in wetlands)nor resulted from the impoundment of waters of the U.S. Waters of the U.S.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 CWA,the final authority regarding CWA jurisdiction remains with EPA. Part II. Permit Applicability and Coverage Section A. Discharges Eligible for Authorization 1. Stormwater Associated with Construction Activity Discharges of stormwater runoff from small and large construction activities maybe authorized under this general permit. 2. Discharges of Stormwater Associated with Construction Support Activities 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. Construction support activities authorized under this general permit are not commercial operations,and do not serve multiple unrelated construction projects. Discharges of stormwater runoff from construction support activities maybe authorized under this general permit,provided that the following conditions are met: (a) the activities are located within one(i)mile from the boundary of the permitted construction site and directly support the construction activity; (b) an SWP3 is developed for the permitted construction site according to the provisions of this general permit,and includes appropriate controls and measures to reduce erosion and discharge of pollutants in stormwater 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,at the time that they do,are authorized under separate Texas Pollutant Discharge Elimination System(TPDES)authorization. Separate TPDES authorization may include the TPDES Multi Sector General Permit(MSGP), TXRo50000(related to stormwater 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. 3. Non-Stormwater Discharges The following non-stormwater 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,or 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); (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,where spills or leaks of toxic or hazardous materials have not occurred(unless spilled materials Page 12 Construction General Permit TPDES General Permit TXRi50000 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,but 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 National Pollutant Discharge Elimination System(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 wash out of concrete trucks at regulated construction sites must be performed in accordance with the requirements of Part V of this general permit. Section C. Limitations on Permit Coverage 1. 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)or removal of the appropriate site notice,as applicable,for the regulated construction activity. 2. Prohibition of Non-Stormwater Discharges Except as otherwise provided in Part II.A.of this general permit,only discharges that are composed entirely of stormwater associated with construction activity maybe authorized under this general permit. 3. Compliance With Water Quality Standards Discharges to surface water in the state that would cause,have the reasonable potential to 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.H.2.and 3.)to authorize discharges to surface water in the state if the executive director determines that any activity will cause, has the reasonable potential to cause,or contribute to a violation of water quality standards or is found to cause,has the reasonable potential to cause,or contribute to, the impairment of a designated use. The executive director may also require an application for an individual permit considering factors described in Part II.H.2.of this general permit. Page 13 Construction General Permit TPDES General Permit TXRi50000 4. Impaired Receiving Waters and Total Maximum Daily Load(TMDL)Requirements New sources or new discharges of the pollutants of concern to impaired waters are not authorized by this permit unless otherwise allowable under 3o 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 CWA§303(d)List.Pollutants of concern are those for which the water body is listed as impaired. Discharges of the pollutants of concern to impaired water bodies for which there is a TMDL are not eligible for this general permit unless they are consistent with the approved TMDL. Permittees must incorporate the conditions and requirements applicable to their discharges into their SWP3,in order to be eligible for coverage under this general permit. For consistency with the construction stormwater-related items in an approved TMDL,the SWP3 must be consistent with any applicable condition,goal,or requirement in the TMDL,TMDL Implementation Plan(I-Plan),or as otherwise directed by the executive director. 5. Discharges to the Edwards Aquifer Recharge or Contributing Zone Discharges cannot be authorized by this general permit where prohibited by 3o 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(EAPP)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 (CZ),operators must meet all applicable requirements of,and operate according to, 3o 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(WPAP) under the Edwards Aquifer Rule is in addition to the requirements of this general permit. BMPs and maintenance schedules for structural stormwater controls,for example,may be required as a provision of the rule. All applicable requirements of the Edwards Aquifer Rule for reductions of suspended solids in stormwater runoff are in addition to the requirements in this general permit for this pollutant. 6. Discharges to Specific Watersheds and Water Quality Areas Discharges otherwise eligible for coverage cannot be authorized by this general permit where prohibited by 3o TAC Chapter 311(relating to Watershed Protection)for water quality areas and watersheds. 7. Protection of Streams and Watersheds by Other Governmental 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. 8. Indian Country Lands Stormwater 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 stormwater require authorization under federal NPDES Page 14 Construction General Permit TPDES General Permit TXR150000 regulations,authority for these discharges must be obtained from the U.S. Environmental Protection Agency(EPA). 9. Oil and Gas Production Stormwater 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 under the authority of the TCEQ and are not eligible for coverage under this general permit. If discharges of stormwater require authorization under federal NPDES regulations,authority for these discharges must be obtained from the EPA. 10. Stormwater Discharges from Agricultural Activities Stormwater discharges from agricultural activities that are not point source discharges of stormwater 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 stormwater runoff associated with the construction of facilities that are subject to TPDES regulations,such as the construction of concentrated animal feeding operations,would be point sources regulated under this general permit. ii. Endangered Species Act Discharges that would adversely affect a listed endangered or threatened aquatic or aquatic-dependent species or its critical habitat are not authorized by this permit,unless the requirements of the Endangered Species Act are satisfied.Federal requirements related to endangered species apply to all TPDES permitted discharges and site-specific controls may be required to ensure that protection of endangered or threatened species is achieved. If a permittee has concerns over potential impacts to listed species,the permittee may contact TCEQ for additional information. 12. Other Nothing in Part II of the general permit is intended to negate any person's ability to assert the force majeure(act of God,war,strike, riot,or other catastrophe)defenses found in 3o TAC§70.7. Section D. Deadlines for Obtaining Authorization to Discharge 1. Large 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-Operators of large construction activities continuing to operate after the effective date of this permit,and authorized under TPDES general permit TXRi50000(effective on March 5, 2008),must submit an NOI to renew authorization or a NOT to terminate coverage 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,the operator must 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 Page 15 Construction General Permit TPDES General Permit TXR150000 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 1. 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 an SWP3 or submit an 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 3o 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 TCEQ construction site notice,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 commencing construction activities,and maintained in that location until completion of the construction activity; (f) a copy of the signed and certified construction site notice is provided to the operator of any 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 stormwater runoff or other non-stormwater discharges under an individual TPDES permit,another TPDES general permit,or under an individual TCEQ permit where stormwater and non-stormwater is disposed of by evaporation or irrigation(discharges are adjacent to water in the state); and (h) any non-stormwater discharges are either authorized under a separate permit or authorization,or are not considered to be a wastewater. Part II.G.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. Page 16 Construction General Permit TPDES General Permit TXR150000 2. Automatic Authorization For All Other Small Construction Activities: Operators of small construction activities not described in Part II.E.i.above may be 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 SWP3 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 TCEQ small construction site notice,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 prior to commencement of construction activities. Operators of small construction activities as defined in Part I.B 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 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 SWP3 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 an 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(io)days before assuming operational control; (c) 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); Page 17 Construction General Permit TPDES General Permit TXRi50000 (d) prior to commencing construction activities,all primary operators must(1)provide a copy of the signed NOI to the operator of any MS4 receiving the discharge and to any secondary construction operator,and(2)list in the SWP3 the names and addresses of all MS4 operators receiving a copy; (e) 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 NOI,provided that a primary operator at the site has submitted an NOI, or is required to submit an NOI,and the secondary operator has provided notification 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; and (f) all secondary operators must provide a copy of the signed and certified Secondary Operator construction site notice to the operator of any MS4 receiving the discharge prior to commencement of construction activities. 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 II.E.i.or II.E.2. above are authorized immediately following compliance with the applicable conditions of Part II.E.i.or II.E.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 3o 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 3o TAC Chapter 213 until all applicable requirements of that rule are met. (b) Primary operators of large construction activities as described in Part II.E.3.above are provisionally authorized seven(7)days from the date that a completed NOI 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 3o 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 3o 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. 6. Notice of Change(NOC) 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 Page 18 Construction General Permit TPDES General Permit TXR150000 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 SWP3 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 SWP3 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 3o 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; (e) confirmation that the project or site will not be located on Indian Country lands; (f) confirmation that a SWP3 has been developed in accordance with this general permit, that it will be implemented prior to construction,and that it is compliant with any applicable local sediment and erosion control plans;for multiple operators who prepare a shared SWP3,the confirmation for an operator may be limited to its obligations under the SWP3 provided all obligations are confirmed by at least one operator; (g) name of the receiving water(s); (h) the classified segment number for each classified 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 all surface waters receiving discharges from the regulated construction activity that are on the latest EPA-approved CWA§3o3(d)List of impaired waters. Page 19 Construction General Permit TPDES General Permit TXRi50000 Section F. Terminating Coverage 1. 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 an 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 3o 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: (a) if authorization was granted following submission of an NOI,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 location(latitude/longitude)of the construction project or site; and (e) a signed certification that either all stormwater discharges requiring authorization under this general permit will no longer occur,or that the applicant 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 3o days of meeting any of the following conditions: Page 20 Construction General Permit TPDES General Permit TXRi50000 (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 or general TPDES permit. Authorization to discharge under this general permit terminates immediately 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 the structure of a company,such as changing from a partnership to a 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 an 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(io)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.i.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 II.F.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 a new 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 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. (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 SWP3 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 stormwater discharges from small construction activities under the terms and conditions described in this section. Page 21 Construction General Permit TPDES General Permit TXRi50000 1. Waiver Applicability and Coverage Operators of small construction activities may apply for and receive a waiver from the requirements to obtain authorization under this general permit,where all of the following conditions are met. This waiver from coverage does not apply to non- stormwater discharges. The operator must insure that any non-stormwater 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 R factor is less than five (5); and (c) the waiver certification form is postmarked for delivery to the TCEQ at least seven(7) days before construction activity begins or,if electronic filing is available,then any time following the receipt of written confirmation from TCEQ that a complete electronic application was submitted and acknowledged. 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.tamu.edu/index.html,or using another available resource. The waiver certification form is not required to be posted at the small construction site. 3. Effective Date of Waiver Operators of small construction activities are provisionally waived from the otherwise applicable requirements of this general permit seven(7)days from the date that a completed waiver certification form is postmarked for delivery to TCEQ,or immediately upon receiving confirmation of approval of an electronic submittal,if electronic form submittals are available. 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: Page 22 Construction General Permit TPDES General Permit TXR150000 (a) recalculate the 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 II.E.3.before the end of the approved waiver period. Section H. Alternative TPDES Permit Coverage 1. 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§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 authorization. 2. Individual Permit Required The executive director may suspend an authorization or deny an NOI in accordance with the procedures set forth in 3o TAC§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 TMDL or TMDL I-Plan on the receiving water; (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 the state: and (c) any other consideration defined in 3o TAC Chapter 205(relating to General Permits for Waste Discharges)including 3o TAC Chapter 2o5.4(c)(3)(D),which allows the commission to deny authorization under the general permit and require an individual permit if a discharger"has 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 fees 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 under this general permit or suspension of a permittee's authorization under this general permit shall be done according to commission rules in 3o TAC Chapter 205(relating to General Permits for Waste Discharges). 3. Alternative Discharge Authorization Any discharge eligible for authorization under this general permit may alternatively be authorized under a separate general permit according to 3o TAC Chapter 205(relating to General Permits for Waste Discharges),if applicable. Section I. Permit Expiration 1. This general permit is effective for a term not to exceed five(5)years. All active discharge authorizations expire on the date provided on page one(i)of this permit. Following public notice and comment,as provided by 3o TAC§205.3(relating to Page 23 Construction General Permit TPDES General Permit TXRi50000 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. Stormwater Pollution Prevention Plans(SWP3) All regulated construction site operators shall prepare an SWP3,prior to submittal of an NOI,to address discharges authorized under Parts II.E.2.and II.E.3.of this general permit that will reach Waters of the U.S.,including discharges to MS4s and privately owned separate storm sewer systems that drain to Waters of the U.S.,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 project. The SWP3 must describe the implementation of practices that will be used to minimize to the extent practicable the discharge of pollutants in stormwater associated with construction activity and non-stormwater 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 for 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. 1. 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. Until 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. Page 24 Construction General Permit TPDES General Permit TXR150000 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. 3. The SWP3 may provide that one operator is responsible for preparation of a SWP3 in compliance with the CGP,and another operator is responsible for implementation of the SWP3 at the project site. Section B. Responsibilities of Operators 1. 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 shall: (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 that all other operators affected by modifications in project specifications are notified in a timely manner so that those operators may modify their BMP s 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 number(s)for operators 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. 2. 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 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. Section C. 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 Page 25 Construction General Permit TPDES General Permit TXRi50000 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 1. 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 stormwater management plans;local government officials;and the operator of a municipal separate storm sewer receiving discharges from the site. If the SWP3 is retained off-site,then it shall be made available as soon as reasonably possible. In most instances,it is reasonable that the SWP3 shall be made available within 24 hours of the request. 2. A primary operator of a large construction activity must post the TCEQ site notice near the main 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 TCEQ site notice required in Part II.E.i., 2.,or 3.of this general permit in order to obtain authorization. If the construction project is a linear construction project,such as a 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 and must comply with the construction and development effluent guidelines in Part III, Section G of the general permit. Page 26 Construction General Permit TPDES General Permit TXR150000 1. 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; (c) a description of the intended schedule or sequence of activities that will disturb soils for major portions of the site,including estimated start dates and duration of activities; (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 controls and buffers,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 or chemical storage areas; (vi) surface waters(including wetlands)either at,adjacent,or in close proximity to the site,and also indicating those that are impaired waters; (vii) locations where stormwater discharges from the site directly to a surface water body or a municipal separate storm sewer system; (viii) vehicle wash areas; and (ix) designated points on the site where vehicles will exit onto paved roads(for instance,this applies to construction transition from unstable dirt areas to exterior paved roads). 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; (j) a copy of this TPDES general permit; (k) the 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; (1) stormwater and allowable non-stormwater discharge locations,including storm drain inlets on site and in the immediate vicinity of the construction site; and Page 27 Construction General Permit TPDES General Permit TXR150000 (m)locations of all pollutant-generating activities,such as paving operations; concrete,paint and stucco washout and water disposal;solid waste storage and disposal; and dewatering operations. 2. A description of the BMPs 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 (i) 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,compliant with the requirements of Part III.G.i and G.2 of this general permit,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.1 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. (iii) Erosion control and stabilization measures must be initiated immediately in portions of the site where construction activities have temporarily ceased and will not resume for a period exceeding 14 calendar days. Stabilization measures that provide a protective cover must be initiated immediately in portions of the site where construction activities have permanently ceased. The term"immediately"is used to define the deadline for initiating stabilization measures.In the context of this requirement,"immediately"means as soon as practicable,but no later than the end of the next work day,following the day when the earth-disturbing activities have temporarily or permanently ceased. Except as provided in (A)through(D)below,these measures must be completed as soon as practicable,but no more than 14 calendar days after the initiation of soil stabilization measures: (A) Where the immediate initiation of stabilization measures after construction activity temporarily or permanently ceased is precluded Page 28 Construction General Permit TPDES General Permit TXR150000 by snow cover or frozen ground conditions,stabilization measures must be initiated as soon as practicable. (B) In arid areas,semi-arid areas,or drought-stricken areas where the immediate initiation of stabilization measures 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 immediately install, and within 14 calendar days of a temporary or permanent cessation of work in any portion of the site complete,non-vegetative erosion controls. If non-vegetative controls are not feasible,the operator shall install temporary sediment controls as required in Paragraph(C) below. (C) 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. (D) If the initiation or completion of vegetative stabilization is affected by circumstances beyond the control of the permittee,vegetative stabilization must be initiated or completed as soon as conditions or circumstances allow it on the site. The requirement to initiate stabilization is triggered as soon as it is known with reasonable certainty that work will be stopped for 14 or more additional calendar days. (iv) Final stabilization must be achieved prior to termination of permit coverage. (v) TCEQ does not expect that temporary or permanent stabilization measures to be applied to areas that are intended to be left un-vegetated or un- stabilized following construction(e.g.,dirt access roads,utility pole pads, areas being used for storage of vehicles,equipment,or materials). (c) Sediment Control Practices The SWP3 must include a description of any sediment control practices used to remove eroded soils from stormwater runoff,including the general timing or sequence for implementation of controls. (i) 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(10)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. Page 29 Construction General Permit TPDES General Permit TXR150000 (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. (4) Unless infeasible,when discharging from sedimentation basins and impoundments,the permittee shall utilize outlet structures that withdraw water from the surface. (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 stormwater 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 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. (C) If sedimentation basins or impoundments are used,the permittee shall comply with the requirements in Part III.G.6 of this general permit. 3. Description of Permanent Stormwater Controls A description of any measures that will be installed during the construction process to control pollutants in stormwater 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 stormwater management measures prior to final stabilization of the site or prior to submission of an NOT. 4. 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. Page 30 Construction General Permit TPDES General Permit TXRi50000 (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 stormwater 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. (f) Permittees shall ensure that all other required controls and BMPs comply with all of the requirements of Part III.G of this general permit. 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 stormwater 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 stormwater 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 WPAP 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 stormwater 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 shall 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 5o%. For perimeter Page 31 Construction General Permit TPDES General Permit TXRi50000 controls such as silt fences,berms,etc.,the trapped sediment must be removed before it reaches 5o%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 shall work with the owner or operator of the property to remove the sediment. 7. Inspections of Controls (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 of the 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 ground exists),inspections must be conducted at least once every month. In arid,semi-arid,or drought-stricken 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. The SWP3 must also contain a record of the total rainfall measured,as well as the approximate beginning and ending dates of winter or drought conditions resulting in monthly frequency of inspections. 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 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 personnel with limited access to the areas described in Part III.F.7.(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 or greater,but representative inspections may be performed. For representative inspections,personnel must inspect controls along the construction site for o.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.7.(a) Page 32 Construction General Permit TPDES General Permit TXR150000 above. The conditions of the controls along each inspected 0.25 mile portion 411,0 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. 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 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 3o TAC§305.128(relating to Signatories to Reports). The names and qualifications of personnel making 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-stormwater 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. 10. The SWP3 must include pollution prevention procedures that comply with Part III.G.4 of this general permit. Page 33 Construction General Permit TPDES General Permit TXR150000 Section G. Erosion and Sediment Control Requirements Applicable to All Sites Except as provided in 4o CFR§§125.3o-125.32,any discharge regulated under this general permit,with the exception of sites that obtained waivers based on low rainfall erosivity,must achieve,at a minimum,the following effluent limitations representing the degree of effluent reduction attainable by application of the best practicable control technology currently available(BPT). 1. Erosion and sediment controls. Design,install,and maintain effective erosion controls and sediment controls to minimize the discharge of pollutants.At a minimum,such controls must be designed,installed,and maintained to: (a) Control stormwater volume and velocity within the site to minimize soil erosion; (b) If any stormwater flow will be channelized at the site,stormwater controls must be designed to control both peak flowrates and total stormwater volume to minimize erosion at outlets and to minimize downstream channel and streambank erosion; (c) Minimize the amount of soil exposed during construction activity; (d) Minimize the disturbance of steep slopes; (e) Minimize sediment discharges from the site.The design,installation,and maintenance of erosion and sediment controls must address factors such as the amount,frequency, intensity and duration of precipitation,the nature of resulting stormwater runoff,and soil characteristics,including the range of soil particle sizes expected to be present on the site; (f) If earth disturbance activities are located in close proximity to a surface water, provide and maintain appropriate natural buffers if feasible and as necessary, around surface waters,depending on site-specific topography,sensitivity,and proximity to water bodies. Direct stormwater to vegetated areas to increase sediment removal and maximize stormwater infiltration. If providing buffers is infeasible, the permittee shall document the reason that natural buffers are not feasible,and shall implement additional erosion and sediment controls to reduce sediment load; (g) Preserve native topsoil at the site,unless infeasible; and (h) Minimize soil compaction in post-construction pervious areas. In areas of the construction site where final vegetative stabilization will occur or where infiltration practices will be installed,either: (1) restrict vehicle and equipment use to avoid soil compaction;or (2) prior to seeding or planting areas of exposed soil that have been compacted, use techniques that condition the soils to support vegetative growth,if necessary and feasible; (i) TCEQ does not consider stormwater control features(e.g.,stormwater conveyance channels,storm drain inlets,sediment basins)to constitute"surface waters"for the purposes of triggering the buffer requirement in Part III.G.(f) above. 2. Soil stabilization. Stabilization of disturbed areas must,at a minimum,be initiated immediately whenever any clearing,grading,excavating,or other earth disturbing activities have permanently ceased on any portion of the site,or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 calendar days. In the context of this requirement,"immediately"means as soon as practicable, but no later than the end of the next work day,following the day when the earth- disturbing activities have temporarily or permanently ceased. Temporary Page 34 Construction General Permit TPDES General Permit TXR150000 stabilization must be completed no more than 14 calendar days after initiation of soil stabilization measures,and final stabilization must be achieved prior to termination of permit coverage. In arid,semi-arid,and drought-stricken areas where initiating vegetative stabilization measures immediately is infeasible,alternative non- vegetative stabilization measures must be employed as soon as practicable.Refer to Part III.F.2.(b)for complete erosion control and stabilization practice requirements. 3. Dewatering.Discharges from dewatering activities,including discharges from dewatering of trenches and excavations,are prohibited,unless managed by appropriate controls. 4. Pollution prevention measures.Design,install,implement,and maintain effective pollution prevention measures to minimize the discharge of pollutants.At a minimum,such measures must be designed,installed,implemented,and maintained to: (a) Minimize the discharge of pollutants from equipment and vehicle washing,wheel wash water,and other wash waters.Wash waters must be treated in a sediment basin or alternative control that provides equivalent or better treatment prior to discharge; (b) Minimize the exposure of building materials,building products,construction wastes,trash,landscape materials,fertilizers,pesticides,herbicides,detergents, sanitary waste,and other materials present on the site to precipitation and to stormwater; and (c) Minimize the discharge of pollutants from spills and leaks,and implement chemical spill and leak prevention and response procedures. 5. Prohibited discharges.The following discharges are prohibited: (a) Wastewater from wash out of concrete trucks,unless managed by an appropriate control(see Part V of the general permit); (b) Wastewater from wash out and cleanout of stucco,paint,form release oils,curing compounds and other construction materials; (c) Fuels,oils,or other pollutants used in vehicle and equipment operation and maintenance;and (d) Soaps or solvents used in vehicle and equipment washing. 6. Surface outlets.When discharging from basins and impoundments,utilize outlet structures that withdraw water from the surface,unless infeasible. Part IV. Stormwater Runoff from Concrete Batch Plants Discharges of stormwater 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 stormwater 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 1. Operators of concrete batch plants authorized under this general permit shall sample the stormwater runoff from the concrete batch plants according to the requirements Page 35 Construction General Permit TPDES General Permit TXR150000 of this section of this general permit,and must conduct evaluations on the effectiveness of the SWP3 based on the following benchmark monitoring values: Table 1.Benchmark Parameters Benchmark Benchmark Value Sampling Sample Type Parameter Frequency Oil and Grease 15 mg/L i/quarter(*i)(*2) Grab(*3) Total Suspended 10o mg/L i/quarter(*i)(*2) Grab(*3) Solids pH 6.o—9.o Standard i/quarter(*1) (*2) Grab(*3) Units Total Iron 1.3 mg/L i/quarter(*1)(*2) Grab(*3) (*1) When discharge occurs. Sampling is required within the first 3o minutes of discharge. If it is not practicable to take the sample,or to complete the sampling,within the first 3o minutes,sampling must be completed within the first hour of discharge. If sampling is not completed within the first 3o 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 stormwater 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 stormwater 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 stormwater 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. Page 36 Construction General Permit TPDES General Permit TXR150oo0 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 stormwater runon to the permitted facility,by laboratory analyses of samples of stormwater 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 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): 1. 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 stormwater 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 stormwater 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 maybe exposed to stormwater and that have a potential to Page 37 Construction General Permit TPDES General Permit TXRi50000 affect the quality of stormwater 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 stormwater and that drain to stormwater outfalls associated with concrete batch plants authorized under this general permit must be developed,maintained, and updated as needed. (d) Sampling Data-A summary of existing stormwater 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 IV.B.i.(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. (i) 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 stormwater. 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. (2) Operators must prevent the exposure of fine granular solids,such as cement,to stormwater.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 stormwater 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 stormwater 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. (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 stormwater pollution prevention,with the provisions of the SWP3. The frequency of training must be documented in Page 38 Construction General Permit TPDES General Permit TXR150000 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 stormwater 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. (0 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. 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 stormwater 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 SWP3,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.i., "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 3o TAC§305.128,relating to Signatories to Reports. i (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 wash out at construction sites may be authorized if conducted in accordance with the requirements of Part V of this general permit. Page 39 Construction General Permit TPDES General Permit TXRi50000 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.i., 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. Any other direct discharge of concrete production waste water 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 wash out as the result of rainfall or stormwater runoff. 4. The discharge of wash out water must 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 site 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 copy 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. Part VII. Standard Permit Conditions 1. 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,revoking,or denying 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 Page 40 Construction General Permit TPDES General Permit TXR150oo0 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. 3. 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 TWC Chapters 26-28,Texas Health and Safety Code§§361.032-361.033 and 361.037,and 4o CFR§122.41(i).The statement in TWC§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. 5. The discharger is subject to administrative,civil,and criminal penalties,as applicable,under TWC Chapter 7 for violations including but not limited to the following: (a) negligently or knowingly violating the federal CWA§§3o1,302,306,307,308, 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§§4o2(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; and (c) knowingly violating§303 of the federal CWA,and placing another person in imminent danger of death or serious bodily injury. 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§305.128(relating to Signatories to Reports). 7. Authorization under this general permit does not convey property or water rights of any sort and does not grant any exclusive privilege. 8. The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this permit that has a reasonable likelihood of adversely affecting human health or the environment. 9. The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control(and related appurtenances)which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures.This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation is necessary to achieve compliance with the conditions of the permit. 10. The permittee shall comply with the reporting requirements in 4o CFR§122.41(1),as applicable. Part VIII. Fees 1. A fee of must be submitted along with the NOI: (a) $325 if submitting a paper NOI,or (b) $225 if submitting an NOI electronically. Page 41 Construction General Permit TPDES General Permit TXR150000 2. Fees are due upon submission of the NOI. An NOI will not be declared administratively complete unless the associated fee has been paid in full. 3. No separate annual fees will be assessed for this general permit. The Water Quality Annual Fee has been incorporated into the NOI fees as described above. Page 42 Construction General Permit TPDES General Permit TXR150000 Appendix A: Automatic Authorization Periods of Low Erosion Potential by County—Eligible Date Ranges Andrews: Nov. 15-Apr.3o Ector: Nov. 15-Apr.30 Archer: Dec. 15-Feb. 14 Edwards: Dec. 15-Feb. 14 Armstrong: Nov. 15-Apr.3o El Paso: Jan. 1-Jul. 14,or May 15-Jul. Bailey: Nov. 1-Apr.30,or Nov. 15-May 31,or Jun. 1 Aug. 14,or Jun. 15 Sept. 14, 14 or Jul. 1-Oct. 14,or Jul. 15-Oct.31,or Aug. 1-Apr.30,or Aug. 15-May 14,or Baylor: Dec. 15-Feb. 14 Sept. 1-May 30,or Oct. 1-Jun. 14,or Borden: Nov. 15 Apr.3o Nov. 1-Jun.30,or Nov. 15-Jul. 14 Brewster: Nov. 15-Apr.3o Fisher: Dec. 15-Feb. 14 Briscoe: Nov. 15-Apr.3o Floyd: Nov. 15-Apr.30 Brown: Dec. 15-Feb. 14 Foard: Dec. 15-Feb. 14 Callahan: Dec. 15-Feb. 14 Gaines: Nov. 15 Apr.30 Carson: Nov. 15-Apr.3o Garza: Nov. 15-Apr.30 Castro: Nov. 15 Apr.3o Glasscock: Nov. 15-Apr.30 Childress: Dec. 15-Feb. 14 Hale: Nov. 15-Apr.30 Cochran: Nov. 1-Apr.30,or Nov. 15- Hall: Feb. 1-Mar.30 May 14 Hansford: Nov. 15-Apr.30 Coke: Dec. 15-Feb. 14 Hardeman: Dec. 15-Feb. 14 Coleman: Dec. 15-Feb. 14 Hartley: Nov. 15-Apr.30 Collingsworth: Jan. 1-Mar.30,or Dec. 1- Haskell: Dec. 15-Feb. 14 Feb. 28 Hockley: Nov. 1-Apr. 14,or Nov. 15- Concho: Dec. 15-Feb. 14 Apr.30 Cottle: Dec. 15-Feb. 14 Howard: Nov. 15-Apr.30 Crane: Nov. 15-Apr.3o Hudspeth: Nov. 1-May 14 Crockett: Nov. 15-Jan. 14,or Feb. 1- Hutchinson: Nov. 15-Apr.30 Mar.30 Irion: Dec. 15-Feb. 14 Crosby: Nov. 15-Apr.30 Jeff Davis: Nov. 1-Apr.30 or Nov. 15- Culberson: Nov. 1-May 14 May 14 Dallam: Nov. 1-Apr. 14,or Nov. 15-Apr. Jones: Dec. 15-Feb. 14 30 Kent: Nov. 15-Jan. 14 or Feb. 1-Mar.30 Dawson: Nov. 15-Apr.3o Kerr: Dec. 15 Feb. 14 Deaf Smith: Nov. 15-Apr.3o Kimble: Dec. 15 Feb. 14 Dickens: Nov. 15-Jan. 14,or Feb. 1-Mar. King: Dec. 15-Feb. 14 30 Dimmit: Dec. 15-Feb. 14 Kinney: Dec. 15-Feb. 14 Donley: Jan. 1-Mar.30,or Dec. 1-Feb. Knox: Dec. 15 Feb. 14 28 Lamb: Nov. 1-Apr. 14,or Nov. 15-Apr. Eastland: Dec. 15-Feb. 14 30 Page 43 Construction General Permit TPDES General Permit TXRi50000 Loving: Nov. 1-Apr.3o,or Nov. 15-May Scurry: Nov. 15-Apr.3o 14 Shackelford: Dec. 15-Feb. 14 Lubbock: Nov. 15 Apr.3o Sherman: Nov. 15-Apr.3o Lynn: Nov. 15-Apr.3o Stephens: Dec. 15-Feb. 14 Martin: Nov. 15-Apr.3o Sterling: Nov. 15-Apr.3o Mason: Dec. 15 Feb. 14 Stonewall: Dec. 15-Feb. 14 Maverick: Dec. 15-Feb. 14 Sutton: Dec. 15-Feb. 14 McCulloch: Dec. 15-Feb. 14 Swisher: Nov. 15-Apr.3o Menard: Dec. 15-Feb. 14 Taylor: Dec. 15-Feb. 14 Midland: Nov. 15-Apr.3o Terrell: Nov. 15-Apr.3o Mitchell: Nov. 15-Apr.3o Terry: Nov. 15-Apr.3o Moore: Nov. 15-Apr.3o Throckmorton: Dec. 15-Feb. 14 Motley: Nov. 15-Jan. 14,or Feb. 1-Mar. 3o Tom Green: Dec. 15-Feb. 14 Nolan: Dec. 15-Feb. 14 Upton: Nov. 15-Apr.3o Oldham: Nov. 15-Apr.3o Uvalde: Dec. 15-Feb. 14 Parmer: Nov. 1-Apr. 14,or Nov. 15-Apr. Val Verde: Nov. 15 Jan. 14,or Feb. 1- Mar.3o 3o Pecos: Nov. 15-Apr.3o Ward: Nov. 1-Apr. 14,or Nov. 15-Apr. 3o Potter: Nov. 15-Apr.3o Wichita: Dec. 15-Feb. 14 Presidio: Nov. 1-Apr.3o,or Nov. 15 May 14 Wilbarger: Dec. 15-Feb. 14 Randall: Nov. 15-Apr.3o Winkler: Nov. 1-Apr.3o,or Nov. 15- May 14 Reagan: Nov. 15 Apr.3o Yoakum: Nov. 1-Apr.3o,or Nov. 15- Real: Dec. 15-Feb. 14 May 14 Reeves: Nov. 1-Apr.3o,or Nov. 15-May Young: Dec. 15-Feb. 14 14 Wheeler: Jan. 1-Mar.3o,or Dec. 1-Feb. Runnels: Dec. 15-Feb. 14 28 Schleicher: Dec. 15-Feb. 14 Zavala: Dec. 15-Feb. 14 Page 44 Construction General Permit TPDES General Permit TXR1.50000 Appendix B: Erosivity Index(EI)Zones in Texas .+ �� i ■ r 1. • • •s f f i• . �. —.� a + �as � , '.7 ' 1 f+ .IF 1 • ► w CI' ni • • M s +o II • ` I_at. !16 . e. ♦ • Y. - — — .�. ..#r , E e 1 .. • ! • . .. ............ 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C.••-. .. z., I Adapted from Chapter 2 of USDA Agriculture Handbook 703:`Predicting Soil Erosion by Water:A Guide to Conservation Planning With the Revised Universal Soil Loss Equation(RUSLE),"U.S.Department of Agriculture,Agricultural Research Service Page 45 Construction General Permit TPDES General Permit TXRi50000 Appendix C: Isoerodent Map • !4I r4w.lfri..�".'ia::i I j witrirsapiiiciurarwilvermilie-44 OS Byrinito ""11arieirem,smsiono•s_.,4.4 (1111111 1111/1041"411103*.. �E gir 4a 11f11■'u gh lit i -"�up Ins Fs it itiarilic weiglibilraitbrie k IIlVUJSIRI1$/1Jva � �.... !r-I1,10;.„ . . , 1' lltailliWOROdr‘wiTiffijiiii14630i Ma ' • IldfrirliP 1160 4.{ 1 i imilitligarilriyiNge ilrligEtfliVilvi it ier iiir As . vivok 404411- •,&,. dial..44, 20 -if to, frasitirfairwilt4wAviOPP** imi i'laglimmiial id,iv Ar 116 it 'i r it rr �, " ' ,: ! I ll04 "° 49x,, In v ■ lisp et; re A '� ill % 14°Illinfrilkil III ILITIIIAnr 260.'"111•4;411P1 Adapted from Chapter 2 of USDA Agriculture Handbook 703:`Predicting Soil Erosion by Water:A Guide to Conservation Planning With the Revised Universal Soil Loss Equation(RUSLE),"U.S.Department of Agriculture,Agricultural Research Service Page 46 AMMnrm Construction General Permit TPDES General Permit TXRi50000 Appendix D: Erosivity Indices for EI Zones in Texas Periods: EI# 1/1 1/16 1/31 2/15 3/1 3/i6 3/31 4/15 4/30 5/15 5/30 6/14 6/29 7/14 7/29 8/13 8/28 9/12 9/27 10/12 10/27 11/11 11/26 12/11 12/31 89 0 1 1 2 3 4 7 2 8 27 38 48 55 62 69 76 83 90 94 97 98 99 100 100 100 90 0 1 2 3 4 6 8 13 21 29 37 46 54 6o 65 69 74 81 87 92 95 97 98 99 100 91 0 0 0 0 1 1 1 2 6 16 29 39 46 53 6o 67 74 81 88 95 99 99 loo 100 100 92 0 0 0 0 1 1 1 2 6 16 29 39 46 53 6o 67 74 81 88 95 99 99 100 100 100 93 0 1 1 2 3 4 6 8 13 25 4o 49 56 62 67 72 76 8o 85 91 97 98 99 99 100 94 0- 1 2 4 6 8 10 15 21 29 38 47 53 57 61 65 70 76 83 88 91 94 96 98 100 95 0- 1 3 5 7 9 11 14 18 27 35 41 46 51 57 62 68 73 79 84 89 93 96 98 100 96 0 2 4 6 9 12 17 23 30 37 43 49 54 58 62 66 70 74 78 82 86 90 94 97 loo 97 0 1 3 5 7 10 14 20 28 37 48 56 61 64 68 72 77 81 86 89 92 95 98 99 loo 1o6 0 3 6 9 13 17 21 27 33 38 44 49 55 61 67 71 75 78 81 84 86 90 94 97 loo 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 ii and ends on December 31. Table adapted from Chapter 2 of USDA Agriculture Handbook 703:`Predicting Soil Erosion by Water:A Guide to Conservation Planning With the Revised Universal Soil Loss Equation(RUSLE),"U.S.Department of Agriculture, Agricultural Research Service Page 47 SECTION 4 CONSTRUCTION/BMP SCHEDULE v 8 A • E 7 0 s _ ... E g a 1 Ilii l F a • A 2 _. _..... O i J O f O J T _ L J 8 • _ C ;1 i a " a •, m `o i. a H i e v aa s a a " g a 7-' a 1- a I ' n 'a ♦ _ :a ;' :1-a ' a a I P !•:..1 ; • .i44 ,Eg E 1LE4Eg � ,E LLLL die ,, iE � ! A' LLEiE � IA LLLLLLg3 a E 1 i 00 3 1 N 3 w 1 I I I 1 A w 1 E 11 1 1 1 la w � I • Ib u_P7 !• I§ a a � 0 5 3 0 it 5w & d o 5 w t ., c ` , 8 112 ` _m 8 ,, w v 3 1 3 rc a° Yo zv I A g$ ,,.5 € w E S - 3 - i 8 £ g 8 3 1 3 - t ; w a o a€ I � � 1 � s o 3 ❑ o f �� E v w r411100 '4,* m' , __ o•- a m a m o n m o o ." a ." " m o n m m 4 - 444 4 44 $ 8 4 ,.) 4A '?, lR m 4, 9 4 < e < , '& s°o S a g (] • • 8 O LJ n. Q w D- • _ r E E E � CA A _ E a " LL LL O r 13 LL 3 3 LL §o - o n n o o 3h _ 6 q N j 3 h g .. c c w 3 c LL 8 u4 c Z❑ �a LL v r9n O E g a v 9 LL I- w i _5, e c1 Lu, g4 < < 2 2 1S 2 2 12 u, v, 2 m 8 $ e 2 2 2 SECTION 5 SOIL DESCRIPTION AND RUNOFF EFFICENTS (GEOTECHNICAL REPORT) GEOTECHNICAL REPORT 0 11.11111111:111111111111111.1111111 TM REPORT OF SUBSURFACE EXPLORATION AND GEOTECHNICAL ENGINEERING ANALYSIS NCU COPPELL 330 S. DENTON TAP ROAD COPPELL, TEXAS FOR LEVELS, LLC MAY 15, 2012 AimWS ECS TEXAS, LLP "Setting the Standard for Service" ,., Geotechnical • Construction Materials • Environmental • Facilities TX Registered Engineering FirmF-8461 May 15, 2012 Mr. Robert T. Quarles, P.E., LEED AP LEVEL5, LLC 2000 RiverEdge Parkway Suite 100 Atlanta, Georgia 30328 ECS Project No. 19:5924 Reference: Report of Subsurface Exploration and Geotechnical Engineering Analysis, NCU Coppell, 330 S. Denton Tap Road, Coppell, Texas Dear Mr. Quarles: ECS — Texas, LLP (ECS) has completed the subsurface exploration for the proposed building. The enclosed report describes the subsurface exploration procedures, laboratory testing, and geotechnical recommendations for development of the site. A Boring Location Diagram is included in the Appendix of this report along with the Boring Log performed for the exploration. We appreciate this opportunity to be of service to you during the design phase of this project. If you have any questions with regard to the information and recommendations presented in this report, or if we can be of further assistance to you in any way during the planning or construction of this project, please do not hesitate to contact us at (972) 392-3222. Respectfully, ,.•,,,OF , 11, ECS — Texas, LLP * : �� •• 'r .• * , MARK R. ZORTMAN • Al -0% 99872 .:ct : Kli,"• '_ E.I.T. % 9��.• Mark R. Zortman, P.E. P .tect Engin �SSiuNA_rc�,G'� Principal Engineer The seal appearing on this document was authorized by Mark R.Zortman No.99872,on May 15,2012 [I:\{GEOTECH}\GEOTECH\PROJECTS\5900-5999\5924 NCU Coppell\NCU Coppell ECS Geo 5924.doc] 4950 Keller Springs Road, Suite 480,Addison,TX 75001 • T: 972-392-3222 • F: 972-392-0102 • www.ecslimited.com ECS Carolinas,LLP • ECS Florida,LLC • ECS Midwest,LLC • ECS Mid-Atlantic,LLC • ECS Southeast,LLC • ECS Texas,LLP REPORT PROJECT NCU Coppell 330 S. Denton Tap Road Coppell, Texas CLIENT LEVELS, LLC 2000 RiverEdge Parkway Suite 100 Atlanta, Georgia 30328 SUBMITTED BY ECS —Texas, LLP 4950 Keller Springs Road Suite 480 Addison, Texas 75001 PROJECT #19:5924 DATE May 15, 2012 TABLE OF CONTENTS PAGE PROJECT OVERVIEW Introduction and Proposed Construction 1 Scope of Work 1 Purposes and Scope of Work 1 EXPLORATION PROCEDURES Subsurface Exploration Procedures 3 Laboratory Testing Program 3 Regional Geology 4 Subsurface Conditions 4 Groundwater Observations 4 Seismic Zone 5 ANALYSIS AND RECOMMENDATIONS Potential Vertical Movements 6 Earthwork Operations 6 Building Foundations 7 Belled Drilled Shaft Foundation 7 Lateral Considerations 8 Concrete Slab and Grade Beams - Pier Supported Structures 8 Monolithic Slab Foundation 9 Building Slabs and Perimeter Conditions 9 Subgrade Improvements 10 Select Fill 11 Lime Stabilized on site CLAY 11 Moisture Conditioning 11 Chemical Pressure Injection 11 Drive Through Foundations 12 Pavement Sections 13 Drainage 14 Construction Considerations 14 Closing 15 APPENDIX ECS Job No. 5924 NCU Coppell Coppell, Texas Page 1 PROJECT OVERVIEW Introduction and Proposed Construction This report presents the results of our subsurface exploration and geotechnical engineering recommendations for the proposed building to be located on a 2.6 acre parcel at 330 S. Denton Tap Road in Coppell, Texas. The planned structure will be situated in the northeast quadrant at the intersection of Denton Tap Road and Van Bebber Drive. The Boring Location Diagram included in the Appendix of this report shows the approximate location of this project. The site is relatively flat and ranges from approximately EL 511 feet to EL 513 feet, although it appears that S. Denton Tap Road is at or near EL 510 feet. Therefore, we anticipate minimal cuts and fills to reach the design subgrades. These elevations as well as the elevations noted on our boring logs were interpolated from public information provided by North Central Texas Council of Governments (NCTCOG), which provides elevation contours in 2 foot intervals. We understand the proposed building addition will consist of a the design and construction of and approximate 3,000 square foot single story building, drive through and canopy as well as associated pavements. Wall and column loads are anticipated to be on the order of 3 kips/foot and 50 kips, respectively. We have assumed the proposed building will have a finished floor elevation at or near existing site grades, or approximately EL 512 feet. Site grading information was not available at the time of this report. Scope of Work The conclusions and recommendations contained in this report are based on ten (10) soil test borings sampled within the proposed building and paving limits and were drilled to depths ranging from 5 feet to 20 feet below the existing site grades. Results of the soil borings, along with a Boring Location Diagram showing the approximate boring locations, are included in the Appendix of this report. This report presents our recommended geotechnical design parameters for project foundation design. In addition, the report provides construction considerations based upon the results of the soil borings and our previous experience in this area. Recommendations for site grading and area paving are also provided. Purposes and Scope of Work The purposes of this exploration were to explore the soil and groundwater conditions at the site and to develop engineering recommendations to guide design and construction of the project. We accomplished these purposes by performing the following scope of services: 1. drilling ten (10) soil test borings (Borings B-1 through B-10) to explore the subsurface soil and groundwater conditions, 2. reviewing historical topographic and photographic maps of the subject parcel, ECS Job No. 5924 NCU Coppell Coppell,Texas Page 2 3. performing laboratory tests on selected representative soil samples from the borings to evaluate pertinent engineering properties, 4. analyzing the field and laboratory test results to develop appropriate engineering recommendations, 5. reviewing previous geotechnical data performed on nearby sites, 6. preparing this report of our findings and recommendations. The conclusions and recommendations presented in this report are based on the results of our field subsurface exploration, laboratory testing, review of available geologic, topographic and photographic information and/or geotechnical data, review of previous geotechnical data, and our experience on other similar projects in the DFW area. The number and general location of the borings performed for the current subsurface exploration was selected by the design team and located in the field by ECS. These locations were chosen and identified based upon the proposed footprint of the anticipated site development, location of the structures on the building footprint, and existing topographic conditions at the site. Following drilling operations, laboratory tests were performed on selected soil samples to identify the soil and to assist in the determination of the properties of the site soils. The results of the subsurface exploration and laboratory testing, along with the Boring Location Diagram are included within the Appendix of this report. ( ECS Job No. 5924 NCU Coppell Coppell,Texas Page 3 EXPLORATION PROCEDURES Subsurface Exploration Procedures The soil borings were located in the field by a representative of ECS using taping procedures based on landmarks shown on the site plan/diagram provided by the client. The soil borings were performed with a truck-mounted rotary-type auger drill rig that utilized continuous flight augers to advance the boreholes. Representative soil samples were obtained by means of the split-barrel and Shelby tube sampling procedures in accordance with ASTM Specifications D-1586 and D-1587, respectively. In the split-barrel sampling procedure, a 2-inch O.D., split-barrel sampler is driven into the soil a distance of 18 inches by means of a 140-pound hammer falling 30 inches. The number of blows required to drive the sampler through the last 12-inch interval is termed the Standard Penetration Test (SPT) value and is indicated for each sample on the boring logs. In the Shelby tube sampling procedure, a thin walled, steel seamless tube with sharp cutting edges is pushed hydraulically into the soil, and a relatively undisturbed sample is obtained. Field logs of the soils encountered in the borings were maintained by the drill crew. After recovery, each geotechnical soil sample was removed from the sampler and visually classified. Representative portions of each soil sample were then wrapped in plastic and transported to our laboratory for further visual examination and laboratory testing. After completion of the drilling operations, the boreholes were backfilled with auger cuttings to the existing ground surface. Laboratory Testing Program Representative soil samples were selected and tested in our laboratory. The soil samples were tested for moisture content, Atterberg Limits and gradation testing (washed sieve). A calibrated hand penetrometer was used to estimate the unconfined compressive strength of several of the soil samples. The calibrated hand penetrometer has been correlated with unconfined compression tests and provides a better estimate of the soil consistency than visual observation alone. These test results are provided on the attached boring log and lab summary sheet in the Appendix. An experienced geotechnical engineer classified each soil sample on the basis of texture and plasticity in general accordance with the Unified Soil Classification System. The group symbols for each soil type are indicated in parentheses following the soil descriptions on the boring log. A brief explanation of the Unified System is included with this report. The geotechnical engineer grouped the various soil types into the major zones noted on the boring log. The stratification lines designating the interfaces between earth materials on the boring log and profiles are approximate; in situ, the transitions may be gradual. The soil samples will be retained in our laboratory for a period of 60 days, after which, they will be discarded unless other instructions are received as to their disposition. ECS Job No. 5924 NCU Coppell Coppell,Texas Page 4 EXPLORATION RESULTS Regional Geology The regional parent geologic mapping indicates that the site is underlain by the Eagle Ford Shale (Kef). The parent rock of the Eagle Ford is Shale. It should be noted that while the site is predominantly underlain by the Eagle Ford Shale, it is also located near a surficial geologic contact zone with the Quaternary Alluvial Deposits (Qal), to the east; and, the Quaternary Terrace Deposits (Qt), to the north. The residual soils encountered were more consistent with the Alluvial and Terrace deposits than what generally weathers from the Eagle Ford formation. Sites situated near a geologic contact zone can have erratic and variable soil and groundwater conditions both vertically and horizontally, over short distances. Subsurface Conditions The soil boring and locations were selected by others and located in the field by ECS to explore the proposed building and paving areas. In general, the soil conditions encountered were consistent with the regional geologic setting and published soil surveys. The borings generally encountered variations of Gray and Brown, CLAY (CL-CH) in the upper 4 feet to 8 feet, below the existing site grades. Below this layer, Calcareous, Tan to Gray, CLAY (CH), with Iron Staining was encountered to depths of approximately 10 feet to 17 feet. Below this layer and to the termination depths of the borings, Gray and Tan Clayey SAND, (SC) was encountered. The soils were predominantly fined grained and had Liquid Limits (LL) ranging from 41 to 63 and Plasticity Index (PI) ranging from 23 to 49 with 72.3% to 91.9% material passing the No. 200 sieve (fines). Please refer to the attached boring logs for a more detailed description of the subsurface conditions encountered in the borings as the stratification descriptions above are generalized for presentation purposes. Groundwater Observations Groundwater level observations were made in each of the borings during the drilling operations. In auger drilling operations, water is not introduced into the boreholes and the groundwater position can often be determined by observing water flowing into and out of the excavation. Furthermore, visual observation of soil samples retrieved can often be used in evaluating the groundwater conditions. None of the borings encountered groundwater during drilling. Any groundwater encountered in the borings near geologic contact zones is generally referred to as a partially perched condition. Specifically, rainfall that enters the site, either directly from overland flow or from adjacent properties, begins to percolate through surficial soils. Once the water percolation reaches an interface between the coarse grained soils (sands and gravels) and fine grained soils (silts and clays) it begins to flow at these intersections. This ground ECS Job No. 5924 NCU Coppell Coppell,Texas Page 5 water flow continues downhill with the water table occasionally surfacing to form as wet springs and intermittent streams. Only in the lowest lying areas and adjacent to existing creeks is a shallow ground water table in a continuous condition. The highest groundwater observations are normally encountered in the late winter and early spring. Fluctuations in the location of the long-term water table may occur as a result of changes in precipitation, evaporation, surface water runoff, and other factors not immediately apparent at the time of this exploration. Therefore, the ground water conditions at this site are expected to be significantly influenced by surface water runoff and rainfall. Seismic Zone Based on the 2009 International Building Code (IBC) Site Class Definitions, in our opinion the site soil and rock can be characterized as Site Class C. Site Class C is described as Very Dense Soil and Soft Rock for the top 100 feet of the site soil profile. Since the boring performed for this project was drilled to a maximum depth of approximately 20 feet it is our opinion the site should be defined as Site Class C. The Mapped Spectral Response Acceleration at Short Periods and 1-Second Periods, SS and Si, respectively, are as follows for the project site. The approximate SS and Si values, as shown below, are calculated through the United States Geological Survey's (USGS) Seismic Hazard Curves and Uniform Hazard Response Spectra program according to the 2009 IBC. SS = 0.121 g S, = 0.051 g ECS Job No. 5924 NCU Coppell Coppell, Texas Page 6 ANALYSIS AND RECOMMENDATIONS The following recommendations have been developed on the basis of the previously described project characteristics and subsurface conditions. If there are any changes to the project characteristics or if different subsurface conditions are encountered during construction, ECS should be consulted so that the recommendations of this report can be reviewed. Site grading information was not provided during this report; however, we have assumed that the finished floor elevation will be at approximately EL 512 feet. Potential Vertical Movements As previously discussed, it is anticipated the building will be constructed with only shallow cuts and fills, near existing grades. The clay soils encountered at this site are moderately to highly expansive and are susceptible to shrink swell tendencies. Based on test method TEX-124-E in the Texas Department of Transportation (TxDOT) Manual of Testing Procedures, and our experience with similar soils, we estimate potential vertical soil movements (PVM) will be on the order of 2.5 inches 3.0 inches based dry conditions. The actual movements could be greater if poor drainage, ponded water, and/or other unusual sources of moisture are allowed to saturate the soils beneath the structure after construction. Earthwork Operations In preparing the site for construction, all loose, poorly compacted existing soils, vegetation, organic soil, existing structures or utilities, existing fill material, or other unsuitable materials should be removed from all proposed building areas, and any areas receiving new fill. After stripping the site and prior to placing any fill, all subgrades should be scarified to a minimum depth of 6 inches, moisture conditioned and compacted to at least 95% of Maximum Dry Density as obtained by the Standard Proctor Method (ASTM D-698)above the optimum value. Imported soil should not have a Plasticity Index (PI) of greater than 15 and no more than 50% passing the No. 200 sieve. All imported granular fills required to support the proposed building should be moisture conditioned at or above the optimum moisture content and compacted to at least 95% of the Maximum Dry Density as obtained by the Standard Proctor Method (ASTM D- 698). Soil moisture levels should be preserved (by various methods that can include covering with plastic, watering, etc.) until new fill or slabs are placed. All fill soils should be placed in 8 inch loose lifts for mass grading operations and 4 inches for trench type excavations where walk behind or "jumping jack" compaction equipment is used. Upon completion of the filling operations, care should be taken to maintain the soil moisture content prior to construction of floor slabs and pavements. If the soil becomes desiccated, the affected material should be removed and replaced, or these materials should be scarified, moisture conditioned and recompacted. Utility cuts should not be left open for extended periods of time and should be properly backfilled. Backfilling should be accomplished with properly compacted on-site soils, rather than granular ECS Job No. 5924 NCU Coppell Coppell, Texas Page 7 materials. If granular materials are used, a utility trench cut-off at the building line is recommended to help prevent water from migrating through the utility trench backfill to beneath the proposed structure. Field density and moisture tests should be performed on each lift as necessary to verify that adequate compaction is achieved. As a guide, one test per 2,500 square feet per lift is recommended in the building areas, minimum of 2 tests per lift. Utility trench backfill should be tested at a rate of one test per lift per each 300 linear feet of trench, minimum of 2 tests per lift. Certain jurisdictional requirements may require testing, in addition to that noted previously. Therefore, these specifications should be reviewed and the more stringent specifications should be followed. Building Foundations Since the above slab movements may be beyond normal design tolerances, the most positive method to reduce movements of slabs to very low levels would be to structurally suspend these slabs above the active clays. We are providing both a suspended slab and slab on grade supported by drilled piers, as well as a monolithic slab foundation system. Belled Drilled Shaft Foundation Granular (sandy) soil was encountered near typical belled piers depths in Borings No. B-2 and B-4. Therefore, the general integrity of the excavation could be relatively un-stable during the installation of the shafts even with little to no water seepage. Therefore, if drilled shafts are considered, we suggest that a test shaft be drilled and observed by ECS and other members of the design team, prior to production. The drilled shaft should be fully drilled and belled and left open for a period of 24 hours in order to determine if the belled shafts can be adequately belled while maintaining stability. If a test shaft is drilled, we recommend that it be located as closely as possible to Borings No. B-2 or B-4, which appear to represent the "worst" conditions. Therefore, if the test shaft is stable at one of these locations, then the remaining shafts should be equally or more stable. If straight shafts are considered, then deeper borings will be required. Underreamed shafts should bear at a minimum depth of about 15 feet below the existing grade. A net allowable end bearing pressure of 6,000 psf can be used to design shafts bearing at the recommended bearing depth. This bearing pressure includes a factor of safety of at least 3 for general shear failure. Drilled shaft foundations that are designed and constructed in accordance with the recommendations in this report could be subjected to long term total and differential movements of about 0.5 inch. Underreamed shafts should be a minimum of 18 inches in diameter and contain sufficient vertical reinforcing steel throughout the entire shaft length to resist uplift (tensile) forces due to post-construction heave of the clay soils. The magnitude of uplift is difficult to predict and will vary with the in-situ moisture contents at the time of construction. The uplift pressures can be approximated by assuming a uniform uplift of 1,200 psf over the entire shaft perimeter to a ECS Job No. 5924 NCU Coppell Coppell,Texas Page 8 depth of 12 feet, below the lowest finished exterior grades. This uplift may be ignored within the select fill zone and reduced to 900 psf within the moisture conditioned or chemically injected zone. An underreamed base to shaft diameter ratio of 2 to 1 should provide sufficient resistance to uplift pressures caused by heaving in the active clays. It is recommended the underreamed base to shaft diameter ratio not exceed 3 to 1. The minimum clear spacing between edges of adjacent shafts should be at least one (1) bell diameter. Installation (drill and final concrete placement) of individual shafts should be completed in one day. This time limit does not only have design implications (reduction of side friction, excessive settlement due to the softening and saturation of bearing materials) but also has practical implications such as losing steel casing in the ground due to excessive soil squeeze and set up, losing bells due to instabilities or continuous seepage. The concrete should have a slump between 5 and 7 inches and should be placed in a manner that prevents it from striking the reinforcing steel and sides of the excavation (such as using a tremmie in the upper 5 feet). We recommend that all drilled shafts be observed by qualified geotechnical personnel, to verify proper shaft installation. The concrete in the upper five feet of the shaft should be mechanically consolidated. Prior to concrete placement, any infiltrating water should be pumped out so that no more than 1 inch of standing water is present at the bottom of the excavation. A sufficient head of concrete must be maintained in the casing during withdrawal. Lateral Considerations For the lateral design consideration of the drilled shafts, we are providing the following information: Shaft Length Unit Weight Friction Angle(0) Cohesion E50 KS(pci) (pcf) (psf) 0'-5' Ignore Ignore Ignore Ignore Ignore • 5'-20' 110 12 2,000 0.004 1,000 E50 and Ks, should be reduced by 50%within the moisture conditioned or chemically injected zone Concrete Slab and Grade Beams - Pier Supported Structures Provided that a suitable subgrade is prepared as recommended herein ground level slabs can also be constructed as slabs-on-grade. Our findings indicate that a modulus of subgrade reaction (ks) of 125 pci is appropriate for design provided the subgrade is prepared in accordance with this report. All grade beams should be supported by the drilled shafts and formed with a nominal 6-inch void beneath the beam. This void is provided to isolate the grade beams from the underlying active clays. Cardboard carton forms can be used to create this void. A soil retainer should be provided to help prevent "in fill" of this void. If the potential slab movements discussed previously in this report cannot be tolerated, the most positive method to reduce movements of interior slabs to very low levels would be to structurally suspend these slabs above the active clays. A minimum void space of 6 inches should be provided ECS Job No. 5924 NCU Coppell Coppell, Texas Page 9 between the floor system and any hanging fixtures (i.e. plumbing lines), and underlying subgrade. The ground surface beneath suspended floors should be shaped and drained to prevent the ponding of water. If a crawl space is provided below the floor slab, adequate ventilation should also be provided. Additionally, if a crawl space will be primarily below the level of existing grade, a vertical moisture barrier should be considered around the perimeter of the structure. If a suspended floor slab is used, the subgrade improvement discussed below would not be required. Monolithic Slab Foundation We recommend the use a monolithic slab-on-grade/grade beam structural foundation system. This system may be designed with conventional reinforcing or by post-tensioning. The slab should be designed in accordance with W RI/CRSI "Design Slab-On-Ground Foundations" or PTI "Design and Construction of Post-Tensioned Slabs-On-Ground". The following design parameters are recommended for the Post-Tensioning Institute's slab-on- grade design method (3`d Edition): Subgrade Center Lift Edge Lift Improvements em ym em Ym (feet) (inches) (feet) (inches) Select Fill and Moisture $ 1.7 4.1 2.6 Conditioning Chemical Pressure 8.3 1.6 4.3 2.3 Injection These design parameters assume that positive drainage will be provided away from the structures and with moderate irrigation of surrounding lawn and planter areas with no excessive wetting or drying of soils adjacent to the foundations. Greater potential movements could occur with extreme wetting or drying of the soils due to ponding of water, plumbing leaks or lack of irrigation. A net allowable soil bearing pressure of 2,000 psf can be used to design grade beams founded on the reworked existing soils or compacted select fill, as described above in the section titled "Earthwork Operations". Grade beams should have a minimum width of 12 inches to reduce the possibility of foundation bearing failure and excessive settlement due to local shear or "punching" failures. Additionally, the grade beams should extend at least 18 inches below final adjacent grade to utilize this bearing pressure. Fills should be sloped to drain surface water away from the structure. Building Slabs and Perimeter Conditions If floor treatments that are sensitive to moisture will be used, a vapor barrier of polyethylene sheeting or similar material should be placed beneath the slab to minimize moisture migration through the slab. If a vapor barrier is considered to provide moisture protection, special attention should be given to the surface curing of the slabs to minimize uneven drying of the slabs and associated cracking and/or slab curling. The use of a blotter or cushion layer above ECS Job No. 5924 NCU Coppell Coppell,Texas Page 10 the vapor barrier can also be considered for project specific reasons. Please refer to ACI 302.1R96 Guide for Concrete Floor and Slab Construction and ASTM E 1643 Standard Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs for additional guidance on this issue. Soils placed along the exterior of the grade beams should be on-site clay soils placed and compacted in accordance with this report. The purpose of this clay backfill is to reduce the opportunity for surface or subsurface water infiltration beneath the structure. We recommend paving/sidewalks be placed adjacent to the structures (up to 10 feet in width around the entire building) to reduce seasonal drying of the moisture conditioned soils near the perimeter of the structures. Irrigation of lawn and landscaped areas should be moderate, with no excessive wetting or drying of soils around the perimeter of the structures allowed. Positive drainage away from the structures should also be provided. Trees and bushes/shrubs planted near the perimeter of the structures can withdraw large amounts of water from the soils and should be planted at least their anticipated mature height away from the buildings. Trees and bushes/shrubs planted near the perimeter of the structure can withdraw large amounts of water from the soils and should be planted at least their anticipated mature height away from the building. Suborade Improvements The design team should select the preferred foundation system based on level of acceptable risk associated with future building movements. Once the appropriate foundation system and acceptable PVM is identified, the appropriate building pad preparation should be selected and performed during construction as outlined below. We would be pleased to assist in this decision Improvements to the soil subgrade can be achieved by replacing on-site soils with select fill, either alone or in conjunction with reworking on-site soils with proper moisture/density control. The improved soil zone should extend at least 5 feet beyond the building pad, and include any flatwork sensitive to movements such as sidewalks. The following table provides some building pad improvement depths and associated PVM values for each scenario. Please note that these depths are measured from finished slab subgrade. In order to achieve a future PVM of 1.0 inch, the upper 2 feet of existing on site clays (or directly below the slab) should be replaced with Select Fill. Below the select fill, the existing clay soils, should be excavated, reworked and moisture conditioned down to a depth of 8 feet. Therefore improvement would be 2 feet of select fill and 6 feet of moisture conditioned soil, for a total of 8 feet of improvement below the building slab. Some of the risks associated with placing slabs or foundations on improved subgrades may include uneven floors, floor and wall cracking and sticking doors or windows. The higher the designed PVM, the higher the risk for future performance issues. For PVM values of 0.5 inches, the subgrade improvements may consist of chemical pressure injection, as described below. Alternatively, additional deeper borings can be performed for drilled pier and suspended slab foundation recommendations. ECS Job No. 5924 NCU Coppell Coppell,Texas Page 11 Select Fill Select fill material that is free of debris and organic matter should have a Plasticity Index (PI) less than or equal to 15, and contain no more than 50 percent passing the No. 200 sieve. Crushed limestone or gravel base material meeting TxDOT Standard Specifications, Item 247, Type A or B, Grade 1 or 2, is an acceptable material under these criteria. This material should be placed and compacted at workable moisture content above the optimum moisture content and compacted to at least 95% of the Maximum Dry Density as obtain using the Standard Proctor Method (ASTM D-698). Lime Stabilized on site CLAY In lieu of importing granular fill, as defined above, the on-site clay soils may be lime stabilized. The advantage to lime stabilization over select fill is the nearly "weatherproof" nature of the soil and once placed and compacted the material essentially retains the virtually impermeable nature of the parent clay, minimizing water infiltration beneath the building. A preliminary lime application rate of 7% hydrated lime by dry weight of clay should be used for budgeting purposes. The lime stabilized clay should be thoroughly mixed and appropriately mellowed for at least 48 hours and tested for gradation and lime solubility (pH) prior to final placement and compaction. Once appropriately mixed and mellowed, this material may then be placed and compacted at workable moisture contents above the optimum moisture content and compacted to at least 95% of the Maximum Dry Density as obtain using the Standard Proctor Method (ASTM D-698). Moisture Conditioning Reworking of the existing clays is performed to increase the moisture of the clays to a level that reduces their ability to absorb additional water that could result in post-construction heave in these soils, but does not eliminate future swell potential. The existing clays in the building areas should be excavated to the required depth. The excavated clays can then be moisture conditioned at least +3% or higher above the optimum moisture content and compacted to at least 95% of the Maximum Dry Density as obtained using the Standard Proctor Method (ASTM D-698). Care should be taken to verify and preserve the specified moisture levels in the reworked clays prior to placement of select fill. Chemical Pressure Injection If future PVM values of 0.5 inch or less are desirable then we recommend the use of Chemical Pressure Injection. This process injects the existing clays is performed to chemically alter the clay surface in order to practically eliminate the level that the clays absorb additional water that could result in post-construction heave in these soils. ECS Job No. 5924 NCU Coppell Coppell, Texas Page 12 The on site soils may should be injected to a depth of at least 12 feet below the finished slab subgrade followed by the placement of at least 12 inches of select fill soils. We have included, with this letter, a set of General Specifications for the chemical pressure injection process. Compliance with these specifications is essential to achieving maximum benefits from the injection(s). Multiple injections are typically required to obtain the desired moisture levels, and the time and expense for these injections will need to be included in the project schedule and budget. Very stiff to hard clays may be encountered. These clays can be difficult to penetrate, and may require heavy-duty injection equipment and/or a reduction in injection rod spacing to achieve the recommended injection depth. In some cases the desired moisture levels and/or injection depths cannot be achieved. The evaluation of the injection operations should consist of at least two borings, or one boring every 3,000 square feet (planned building footprint), whichever provides more borings. Provided that the specifications attached with this letter are followed, the soil should be injected with sufficient number chemical injection passes to meet the following criteria: 1. The average vertical swell, as determined by free absorption swell testing, under final overburden pressures, should be no more than 0.5% for each boring and no one test above 0.75% (testing every 2.5 feet or 3 tests per boring, whichever provides greater testing). 2. The average calibrated hand penetrometer test for each boring should not exceed 1.0 tsf and no one test above 1.5 tsf(testing every 12 inches of injected soil). Initial penetration with injection rods can be difficult in over consolidated clays as encountered on this site and especially if they are injected in a dry condition. There is no possible way to predict the actual required number of injection passes to meet the requirements noted above and multiple injections should be anticipated. For budgetary purposes, the time and cost for multiple injection passes should be included in the budget and schedule. Drive Through Foundations As stated previously, the on site soils have a potential for future movements of approximately 2.5 inches to 3.0 inches due to the shrink swell characteristics of the on site clays. Outside of the building areas, where drive through or canopy foundations are required, these may be supported by a shallow foundations system designed for a net allowable bearing capacity of 3,000 psf, embedded at a depth of at least 30 inches below finished exterior grades. However, a shallow foundation system is highly susceptible to future long term shrink/swell movements and these movements will translate to nearly 100% differential to the building where roof canopies connect to the building. Therefore, if these movements are not tolerable, then we recommend that at a minimum the roof canopy have a flexible connection to allow for as much as 3.0 inches of differential movement. Alternatively, the canopy may be supported by drilled piers or improved subgrades. ECS Job No. 5924 NCU Coppell Coppell,Texas Page 13 Pavement Sections As previously noted the PVM of this site is about 2.5 inches to 3.0 inches. Should these movements be unacceptable for the pavements, the recommendations in the section "Subgrade Improvements" may be used to reduce the movements. For the design and construction of exterior pavement, the subgrade should be prepared in accordance with the recommendations in the "Earthwork Operations" section of this report. We anticipate that Standard Duty and Heavy Duty ESAL will be approximately 10,000 and 30,000, respectively. Over a 20 year period we are providing the following pavement design: Asphaltic Concrete Pavement Portland Cement Concrete Material Designation (PCC) Pavement Standard Duty Heavy Duty Standard Duty Heavy Duty Asphalt Surface Course 2 inches 2 inches Asphalt Binder Course' 3 inches 4'/2 inches Portland Cement Concrete 5 inches 6 inches Lime Stabilized Subgrade3 6 inches 6 inches 6 inches2 6 inches2 Flexible base material may be substituted for the asphalt binder using a substitute ratio of three inches of flexible base for each inch of asphalt binder. 2 In lieu of lime stabilization, the Portland cement concrete thickness should be increased by one inch. 3 Granular base(or flexbase)materials may be substituted with the lime stabilization at an equivalent thickness substitution. A preliminary lime application rate of 7% hydrated lime by dry weight of clay should be used for budgeting purposes. The lime stabilized clay should be thoroughly mixed and appropriately mellowed for at least 48 hours and tested for gradation and lime solubility (pH) prior to final placement and compaction. Once appropriately mixed and mellowed, this material may then be placed and compacted at workable moisture contents above the optimum moisture content and compacted to at least 95% of the Maximum Dry Density as obtain using the Standard Proctor Method (ASTM D-698). An important consideration with the design and construction of pavements is surface and subsurface drainage. Where standing water develops, either on the pavement surface or within the base course layer, softening of the subgrade and other problems related to the deterioration of the pavement can be expected. Furthermore, good drainage should reduce the possibility of the subgrade materials becoming saturated during the normal service period of the pavement. Please note, the recommended pavement sections provided above are considered the minimum necessary to provide satisfactory performance based on the provided traffic loading. In some cases, jurisdictional minimum standards for pavement section construction may exceed those provided above. Front-loading trash dumpsters frequently impose concentrated front-wheel loads on pavements during loading. This type of loading typically results in rutting of bituminous pavements and ultimately pavement failures and costly repairs. Therefore, we suggest that the pavements in trash pickup areas utilize an 8 inch thick Portland Cement Concrete (PCC) ECS Job No. 5924 NCU Coppell Coppell, Texas Page 14 pavement section. Appropriate jointing should also be incorporated into the design of the PCC pavement. Pavement should be specified, constructed and tested to meet the following requirements: 1. Reinforcing steel may consist of #3 reinforcing steel bars placed at 18 inches on center each way. 2. Hot Mix Asphaltic Concrete: Item 340 of the TxDOT Standard Specifications, Type A or B Base Course (binder), Type D Surface Course. The coarse aggregate in the surface course should be crushed limestone rather than gravel. 3. Portland Cement Concrete: Minimum compressive strength of 3,600 lbs per sq inch at 28 days. Concrete should be designed with 3 to 6 percent entrained air. 4. Crushed Limestone Base Material: Item 247 of the TxDOT Standard Specifications, Type A or B, Grade 2 or better. The material should be compacted to a minimum 95 percent of standard Proctor maximum dry density (ASTM D 698) and within three percentage points of the material's optimum moisture content. Drainage Positive drainage should be provided around the entire building perimeter and pavement areas to prevent ponding of water. Pavement, sidewalks or flatwork are preferable to open areas around the building perimeter. Irrigation of lawn and landscaped areas adjacent to the structure should be moderate, with no excessive wetting or drying of soils adjacent to the structure. If landscaped areas are provided they should be sloped to drain away from the structure and landscape borders should allow water to drain freely away from the area. It is preferable that landscape beds immediately adjacent to the structure be self-contained, or a vertical moisture barrier provided between the landscaped area and the building or select fill if used. Any penetrations into the building should be backfilled and sealed as shown on the "Clay Plug Detail" provided in the Appendix of this report. Irrigation of lawn and landscaped areas should be moderate, with no excessive wetting or drying of soils around the perimeter of the structures allowed. Positive drainage away from the structures should also be provided. Trees and bushes/shrubs planted near the perimeter of the structure can withdraw large amounts of water from the soils and should be planted at least their anticipated mature height away from the building. Construction Considerations In a dry and undisturbed state, the upper 1-foot of the majority of the soil at the site will provide good subgrade support for fill placement and construction operations. However, when wet, this soil will degrade quickly with disturbance from contractor operations. Therefore, good site drainage should be maintained during earthwork operations, which would help maintain the integrity of the soil. ECS Job No.5924 NCU Coppell Coppell,Texas Page 15 The surface of the site should be kept properly graded in order to enhance drainage of the surface water away from the proposed building areas during the construction phase. We recommend that an attempt be made to enhance the natural drainage without interrupting its pattern. The soils at the site are moisture and disturbance sensitive, and contain fines which are considered moderately erodible. Therefore, the contractor should carefully plan his operation to minimize exposure of the subgrade to weather and construction equipment traffic, and provide and maintain good site drainage during earthwork operations to help maintain the integrity of the surficial soils. All erosion and sedimentation shall be controlled in accordance with sound engineering practice and current jurisdictional requirements. Closing This report has been prepared for the use of our client including all its affiliates and subsidiaries, in order to aid in the evaluation of this property and to assist the architect and/or engineer in the design of this project. The project description represents our current understanding of the significant aspects of the proposed improvements relevant to the geotechnical considerations. It is recommended that once the proposed grading plan is finalized, with finished floor elevations and maximum structural loads established, we review our recommendations and provide any revisions as necessary to this geotechnical report. 41. We recommend that the construction activities be monitored by a qualified geotechnical engineering firm to provide the necessary overview and to check the suitability of the subgrade soils of footings and floor slabs. We would be most pleased to provide these services. (111 APPENDIX Reference Notes For Boring Logs Unified Soil Classification System Clay Plug Detail General Specifications — Chemical Pressure Injection Boring Log B-1 through B-10 Laboratory Testing Summary Plasticity Chart Boring Location Diagram REFERENCE NOTES FOR BORING LOGS I. Drilling Sampling Symbols SS Split Spoon Sampler ST Shelby Tube Sampler RC Rock Core, NX, BX, AX PM Pressuremeter TCP TxDOT Cone Penetrometer RD Rock Bit Drilling BS Bulk Sample of Cuttings PA Power Auger(no sample) HSA Hollow Stem Auger WS Wash sample REC Rock Sample Recovery % RQD Rock Quality Designation % II. Correlation of Penetration Resistances to Soil Properties: Standard Penetration (blows/ft) refers to the blows per foot of a 140 lb. hammer falling 30 inches on a 2-inch OD split-spoon sampler, as specified in ASTM D 1586. The blow count is commonly referred to as the N-value. For TxDOT cone penetrometer(TCP) the penetration value is reported as the number of blows required to advance the sampler 12 inches, or penetration in inches after 100 blows (100/#) using a 170-pound hammer falling 24 inches, reported as "blows per foot"or inches per 100 blows, and is not considered equivalent to the SPT "N-value". A. Non-Cohesive Soils(Silt, Sand, Gravel and Combinations) Density Relative Properties Under 4 blows/ft Very Loose Adjective Form 12%to 49% 5 to 10 blows/ft Loose With 5% to 12% 11 to 30 blows/ft Medium Dense 31 to 50 blows/ft Dense Over 51 blows/ft Very Dense Particle Size Identification Boulders 8 inches or larger Cobbles 3 to 8 inches Gravel Coarse 1 to 3 inches Medium 1/2 to 1 inch Fine '/to 1/2 inch Sand Coarse 2.00 mm to'/ inch (dia. of lead pencil) Medium 0.42 to 2.00 mm (dia. of broom straw) Fine 0.074 to 0.42 mm (dia. of human hair) Silt and Clay 0.0 to 0.074 mm (particles cannot be seen) B. Cohesive Soils (Clay, Silt, and Combinations) Unconfined Degree of Plasticity Blows/ft Consistency Comp. Strength Plasticity Index Qp (tsf) Under 2 Very Soft Under 0.25 None to slight 0—4 3 to 4 Soft 0.25-0.49 Slight 5—7 5 to 8 Medium Stiff 0.50-0.99 Medium 8—22 9 to 15 Stiff 1.00-1.99 High to Very High Over 22 16 to 30 Very Stiff 2.00-3.99 31 to 50 Hard 4.00-8.00 Over 51 Very Hard Over 8.00 III. Water Level Measurement Symbols WL Water Level BCR Before Casing Removal DCI Dry Cave-In WS While Sampling ACR After Casing Removal WCI Wet Cave-In WD While Drilling V Est. Groundwater Level 9 Est. Seasonal High GWT The water levels are those levels actually measured in the borehole at the times indicated by the symbol. The measurements are relatively reliable when augering, without adding fluids, in a granular soil. In clay and plastic silts, the accurate determination of water levels may require several days for the water level to stabilize. In such cases,additional methods of measurement are generally applied. UNIFIED SOIL CLASSIFICATION SYSTEM (ASTM D 2487) Major Divisions Group Typical Names Laboratory Classification Criteria Symbols Well-graded gravels, gravel- u) sand mixtures, little or no N C,,=D6o/Dio greater than 4 > c GW fines .o Cc=(D30)2/(D1oxD6o)between 1 and 3 12in N 0 0 Cr)°' w Poorly graded gravels, a) 13 .N co GP gravel-sand mixtures, little or .m Not meeting all gradation requirements for GW a U— no fines a) a) N (6 y co O V 0 N co 5 •0 0 d a) co r a) o GMa Silty gravels, gravel-sand N. Atterberg limits below "A" line o c — t mixtures or P.I.less than 4 Above "A" line with P.I. o w o a� c u .7)a) a between 4 and 7 are �, N a a)o N borderline cases requiring Z 0 m >5 7 oN .0 use of dual symbols N c 2 m 2 o E w Q GC Clayey gravels, gravel-sand- N m Atterberg limits below"A"line a a) clay mixtures ' t 7 or P.I.less than 7 c a 'a m `o 2 0,a`) cc) co.o N o SW Well-graded sands, gravelly o E m C,,=D6o/D10 greater than 6 m �c c sands,little or no fines :v Cc=(D30)/(D1oxD6o)between 1 and 3 U c N co d a) > o O N m cn a> ° m c�J SP Poorly graded sands,gravelly a Not meeting all gradation requirements for SW To w a) sands,little or no fines co a a 5 L a, > c (�U c L c w 0 .5 N m v U)0 2 0 -0 ° o o CD 0 CO 2 o d a>N a a CO SMa Silty sands,sand-silt mixtures Atterberg limits above"A"line w E c o m E or P.I.less than 4 Limits plotting in CL-ML a d L co N U p_ u, N Y = a) a) co a) a'a* zone with P.I. between 4 2 E N co,C u a - Lc,- a) and 7 are borderline `o N v C N C c a)` cases requiring use of - � a E 2 m 2-c N dual symbols a Clayey sands,sand-clay Z5 a Ti 0 Atterberg limits above"A"line Q SC mixtures o 2 cl) with P.I.greater than 7 Inorganic silts and very fine Lr) ML sands, rock flour, silty or Plasticity Chart cn c clayey fine sands, or clayey a) m 2 silts with slight plasticity > 0 co Inorganic clays of low to 60 m~ CL medium plasticity, gravelly 0o N= clays,sandy clays,silty clays, "A"line cN a lean clays 50 d 0- Organic silts and organic silty C OL clays of low plasticity CH m x 40 •o Inorganic silts, micaceous or •° CL o m o MH diatomaceous fine sandy or T c E c silty soils,elastic silts 30 v > U) 7= U~ MH and OH c CH Inorganic clays of high a 20 LL co corn plasticity,fat clays E .P...E 10 L c Q OH Organic clays of medium to CL-ML ML and OL co d high plasticity,organic silts 0 2 0 10 20 30 40 50 60 70 80 90 100 —> C% cn I Liquid Limit o,m.o Pt Peat and other highly organic 2 O v' soils --- 1e Division of GM and SM groups into subdivisions of d and u are for roads and airfields only. Subdivision is based on Atterberg limits;suffix d used when L.L.is 28 or less and the P.I.is 6 or less;the suffix u used when L.L.is greater than 28. Ib Borderline classifications, used for soils possessing characteristics of two groups, are designated by combinations of group symbols. For example: GW-GC,well-graded gravel-sand mixture with clay binder. (From Table 2.16-Winterkorn and Fang, 1975) 0 REFER TO MEP AND/OR CIVIL DRAWINGS FOR TYPICAL BEDDING MATERIALS AT EXTERIOR FACE OF BUILDING. REPLACE BEDDING MATERIALS WITH SITE CLAY SOIL. EXTEND CLAY 2 FEET FROM BUILDING. PLACE IN 8" MAX. LOOSE LIFTS. COMPACT TO 92% OF STANDARD PROCTOR(ASTM D-698), ABOVE OPTIMUM MOISTURE CONTENT. 111-1 r I I I II - -_ _ - = 11=1 I I=111=1 I I I I I=1I 1=1 11=111 1 1 1=11 1=11 1=1 I 111=11 111111111 1111- UTILITY TRENCH 411) I ----ri_1„=_ T� = UNDERGROUND UTILITY 1 I I -1-1=-11 -111=111 I I11 ENGINEER SCALE TYPICAL DETAIL 7� CLAY PLUG AT DRAFTSMAN PROJECT NO. NTS CLL DIAGRAM '� UTILITY TRENCH REVISIONS SHEET SETTING THE DATE STANC,ARC, FOR SERVICE 11/7/08 GENERAL SPECIFICATIONS - CHEMICAL PRESSURE INJECTION 1. The injection process shall be observed on a full time basis by an authorized representative of ECS. 2. All injection passes, should maintain at least 5 feet away from any existing building to minimize potential swell from the injection operations on the existing buildings. We also recommend that the specialty contractor be consulted for further evaluation on the impact of adjacent construction, if necessary. 3. The injection process should be performed after the subgrade has been established to the desired elevation and prior to placement of 24 inches of select fill, installation of underground utilities, and construction of pavements. 4. Chemical (permanent ion exchange solution) shall be used for the Chemical Injection Operation and should be added in accordance with the manufacturer's recommendations. 5. Hole patterns on the injection rods shall be orientated to uniformly disperse the fluid throughout the injected zone. 6. Injection pressures shall be between 50 and 200 pounds per square inch and shall be adjusted to disperse as large a volume of fluid as possible. 7. The injection rod shall be forced downward at no more than 12 inch intervals. The rods shall not be jetted or washed to achieve each penetration. The total depth of injection shall be 12 feet below slab subgrade, 10 feet below the select fill subgrade, or to the top of rock (if encountered). 8. Injection shall continue to until the soil will not take any more fluid and fluid is running freely on the surface (but not jetting) to the specified injection depth. Refusal should be determined by an on-site representative of ECS. 9. Injection spacing shall not exceed 5 feet on center in each direction. Injections shall extend at least 5 feet beyond the building perimeter. Subsequent injection shall be orthogonally offset 2.5 feet from the previous injection pass. 10. A minimum of 24-hours should elapse between injection passes. For example, if 3 initial passes of the pad are planned, then the whole operation will required 3 days, with one pass occurring each day. 11. Post injection evaluation, following a 72 hour mellowing period (after the last injection pass) of the building pad shall include soil borings conducted at a minimum frequency of one boring per 3,000 square feet, or a minimum of two borings per building pad, whichever is more borings. 12. Continuous tube samples shall be obtained in the injected zone. Continuous moisture contents and hand penetrometer testing shall be conducted every 12 inches as well as swell testing every 2.5 feet of injection depth, but no less than three swell tests per boring. 13. At completion of the injection process, the surface should be scarified to a depth of 12 inches and recompacted to a minimum of 92% of the maximum standard Proctor dry density as determined by ASTM D-698 at moisture contents at least 3% above optimum. 14. Completion of the building pad shall proceed in a timely manner after injection and recompaction is complete to preserve the moisture content of the injected soils. 15. ECS should be retained to observe the entire injection process, provide post-injection laboratory testing, and evaluate the effectiveness of the injection process. CLIENT JOB# BORING# SHEET LEVEL5, LLC 5924 B-1 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Cowell LEVEL5, LLC SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Compel!, Dallas County 1 2 3 4 5+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT% Z DESCRIPTION OF MATERIAL ENGLISH UNITS 111 r z p RO KDQYALITY DESIGN/0e RECOVERY O y N 20% 40% -60% 8 .1 i w Z r o BOTTOM OF CASING LOSS OF CIRCULATION w z 0 -J -J - > w ¢ ¢ ¢ 0 SURFACE ELEVATION F > 3 ® STANDARD PENETRATION 512 a w o CO CO CO C 3 w CO 10 20 BLOWS/FT 40 50+ 0 = C LAY,With Sand,Dark Brown, Moist,Hard, '////,_ ♦�� — S-1 ST 24 24 CL 510 13.7 4.5 —- S-2 ST 24 24 -0- 4.5 5—- S-3 ST 24 24 4.5 CLAY,Calcareous, Reddish Tan,Moist,Hard, —- S-4 ST 24 24 (CH) 505 -0- — j 4.5 — S-5 ST 24 24 -0- 10 4.5 500 — S-6 ST 24 24 -9- 15 4.5 Clayey SAND,Gray and Tan,Very Dense,(SC) 495 20 _- S-7 SS 18 18 27 -9- 0-61 34 20 END OF BORING @ 20.00' _ 4.5 —490 25— ' — —485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. 4 WL WS❑ WD❑ BORING STARTED 04/28/12 WL(BCR) t WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST and SPT CLIENT JOB# BORING# SHEET LEVEL5, LLC 5924 B-2 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER irIS NCU Coppell LEVEL5, LLC SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 2 4 5+ PLASTIC WATER LIQUID LIM`T CONTENT% LIMIT Z DESCRIPTION OF MATERIAL ENGLISH UNITS • w RO �(DQYALITY DESIGNl'�JON&RECOVERY a • z w - 24% 40 r -69% C 89% 91% E Z F o >- BOTTOM OF CASING LOSS OF CIRCULATION Z _ w ► w s I-I- a a a O w > 3 ® STANDARD PENETRATION w Q a < o SURFACE ELEVATION 513 < OJ BLOWS/FT o co y Li) K 3 w m 10 20 30 40 50+ 0 _ CLAY,Dark Brown to Grayish Brown,Moist, — S-1 ST 24 24 Very Stiff to Hard,(CL) 30 —- S-2 ST 24 24 510 – 40 5— S-3 ST 24 24 • I— 1 - 10.1 4.5 4.5 —- S-4 ST 24 24 _ S-5 CLAY,Calcareous,Tan,Moist,Hard,(CH) % 505 — 4.5 10= ee,72– Clayey SAND,Tan and White,Dense to Very Dense,(SC) 500 15 —,- S-6 SS 18 18 15 42 27 15_ 495 17 S-7 SS 18 18 ' :.:,:,>i 3042 54 0 – END OF BORING @ 20.00' – — —490 25— — — —485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL WS III WO I:1 BORING STARTED 04/28/12 31 WL(BCR) _ WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH • WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST and SPT CLIENT JOB# BORING# SHEET LEVEL5, LLC 5924 B-3 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVEL5, LLC �.• SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 2 3 a 5+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT Z DESCRIPTION OF MATERIAL ENGLISH UNITS IP Z p RORKDQYALITY DESIGN/RE/14.8,RECOVERY p i `L' j Z 20% 4t! '60% 8Q% tu0 z F p BOTTOM OF CASING LOSS OF CIRCULATION izow O w w w w o = J J J > K Q (A a 0. 0. E 00 SURFACE ELEVATION F > 3 ® STANDARD PENETRATION o N < 512 `3 W 0 BLOWS/FT CO cc 10 20 30 40 50+ 0 — CLAY, Brown to Grayish Brown,Moist,Stiff to %/ — S-1 ST 24 24 Hard,(CL) 510 2.5 —- S-2 ST 24 24 00-14.9 1 0 5—- S-3 ST 24 24 4.5 — CLAY,With SAND,Reddish Brown,Moist, — S-4 ST 24 24 Hard,(CL) 505 4.5 —- S-5 ST 24 24 4.5 10 CLAY,Gray and Brown,Moist,Hard,(CL) 500 S-6 ST 24 24 15 4.5 Clayey SAND,Tan and White,Very Dense, • (SC) 495 •....... 45 — S-7 SS 12 12 50/6 50/6-0 20- - END OF BORING @ 20.00' —490 25— — —485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. WL WS El WD❑ BORING STARTED 04/28/12 WL(BCR) WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST and SPT CLIENT JOB# BORING# SHEET iigaii LEVEL5, LLC 5924 B-4 1 OF 1Iffi PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVEL5, LLC SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 2 3 4 5+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT% Z DESCRIPTION OF MATERIAL ENGLISH UNITS • a -- Z co 1.7. RO �(DQ?ALITY DESIGNF"€ t5&RECOVERY ai W 20.% 40°r -60% 84 r—rup Z F O BOTTOM OF CASING LOSS OF CIRCULATION J 0 6 = J J J LU> Q iii F a a a O SURFACE ELEVATION r > 3 ® STANDARD PENETRATION W a a a W 512 a 0 BLOWS/FT O ) Cl) ( Z 3 w m 10 20 30 40 50+ 0 — CLAY,Dark Brown,Moist,Hard,(CL) — S-1 ST 24 24 510 4.5 —- S-2 ST 24 24 – 4.5 CLAY,Grayish Tan,Moist,Hard,(CL) 5—- S-3 ST 24 24 4.5 —- S-4 ST 24 24 505 41-13.0 -10- – 4.5 —- S-5 ST 24 24 10 /(( 4.5 – Clayey SAND,Gray and Tan,Dense to Very — Dense, — 500 r•:•:• 14 —- S-6 SS 18 18 16 3. 20 15— — fir: 495 — f: — 19 – S-7 SS 18 18 : 27 63 Co 20 ��, 36 – END OF BORING @ 20.00' – - 490 25— — — —- 485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL WS❑ WD III BORING STARTED 04/28/12 g WL(BCR) t WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH • WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST and SPT CLIENT JOB# BORING# SHEET I.. LEVEL5, LLC 5924 B-5 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVEL5, LLC i. SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 z 3 4 5+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT% Z DESCRIPTION OF MATERIAL ENGLISH UNITS • W - z J % //K RO DQ JALITY DESIGNATION 8 RECOVERY d } N 20%C 40% -scrk 80% IUP% LL z r 0 K BOTTOM OF CASING LOSS OF CIRCULATION rt _ W W W W J = J J J > ▪ a a a OSURFACE ELEVATION 3 ® STANDARD PENETRATION W a a < W 511 3` w> BLOWS/FT O 0) N 10 20 30 40 50+ 0 CLAY, Dark Brown to Grayish Brown,Moist, - S-1 ST 24 24 Very Stiff to Hard,(CH) 510 -9- 2 0 —- S-2 ST 24 24 /, 2.5 5—- S-3 ST 24 24 505 4.5 —- S-4 ST 24 24 -0- 4.5 — CLAY,Calcareous,Gray and Reddish Tan, — S-5 ST 24 24 Moist,Hard,(CH) �— 20.3♦I 10 / 4.5 / 500 —- S-6 ST 24 24 {} 15 ` 4.5 // 495 Clayey SAND,Tan and Brown,Very Dense, !�/� (SC) — S-7 SS 11 11 .. 50/5 50/55-® 20— l'' ' , — END OF BORING @ 20.00' - -490 25 - -485 30— THE 0— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. WL WS❑ WD❑ BORING STARTED 04/28/12 WL(BCR) 1 WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH 4 WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST and SPT CLIENT JOB# BORING# SHEET m - LEVELS, LLC 5924 B-6 1 OF 1 inums7 PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVELS, LLC I i.. SITE LOCATION -0-- CALIBRATED PENETROMETER 330 S Denton Tap Road, Coppell, Dallas County 1 2 TON3/FT2 4 s PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT% DESCRIPTION OF MATERIAL ENGLISH UNITS Z J LL RO 9,,J,ALITY DESIGNARTI�N&RECOVERY p j N >- j Z 20% // 4U'? -GQ% EE 8Q% lug% Z r -p BOTTOM OF CASING LOSS OF CIRCULATION - J J J W Q Q N CL a a O SURFACE ELEVATION w > 3 0 STANDARD PENETRATION 512 a W BLOWS/FT C/) Cl) CC LU CO 10 20 30 40 50+ 0 — CLAY, Dark Brown,Moist, Hard,(CH) 10.4 — S-1 ST 24 24 j • -9- 510 4.5 — S-2 ST 24 24 0 //,1 40— S-3 ST 12 12 5 END OF BORING @ 5.00' 4.5 —505 10— — —500 15— — —495 20— — —490 25— — —485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. WL WS WD❑ BORING STARTED 04/28/12 WL(BCR) _ WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH - WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST CLIENT JOB# BORING# SHEET r 1 LEVEL5, LLC 5924 B-7 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Cowell LEVEL5, LLC I.. SITE LOCATION -0- CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 2 3 4 s+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT% Z DESCRIPTION OF MATERIAL ENGLISH UNITS • Wz J F ROKD(�UALITY DESIGNATION&RECOVERY O i > j 20% / 4177- -6Q% 80% iU0% LL Z p BOTTOM OF CASING LOSS OF CIRCULATION W Z - W W W W J = J J J > Cr Q (n a CL EL EL 0 LUSURFACE ELEVATION > 3 ® STANDARD PENETRATION N N N 511 3 W m BLOWS/FT 10 20 30 40 50+ 0 CLAY, Dark Brown,Moist, Hard,(CH) —- S-1 ST 24 24 / 510 -9- 4.5 —- S-2 ST 24 24 • 12.8 3.5 - S-3 ST 12 12 -9- 5 END OF BORING @ 5.00' _ 4.5 —505 10— — —- 500 15— — —495 20— — —- 490 25— — —- 485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. WL WSJ] WD❑ BORING STARTED 04/28/12 WL(BCR) t WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST CLIENT JOB# BORINGS SHEET �—--_-"--� LEVEL5, LLC 5924 B-8 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVEL5, LLC I SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 ? 3 4 5+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT Z DESCRIPTION OF MATERIAL ENGLISH UNITS • wZ ti LL ROQ JALITY DESIGNATION&RECOVERY • • a o w 2Q% // 40°7 -60% EC 80% 1uU - o K BOTTOM OF CASING LOSS OF CIRCULATION 7,2 J O Lu F a a a O0w > 3 ® STANDARD PENETRATION SURFACE ELEVATION w Q a a w 511 Q U ° BLOWS/FT o N co N C S w m 10 20 30 40 50+ 0 _ CLAY, Dark Brown,Moist, Hard,(CH) `e — S-1 ST 24 24 510 4.5 —- S-2 ST 24 24 -0- 4.5 - S-3 ST 12 12 ////:- • 5 - END OF BORING @ 5.00' - 13.5 4.5 —505 10— 500 15— - 495 20— 490 25— - 485 30— — THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. 4 WL WS❑ WD BORING STARTED 04/28/12 WL(BCR) t WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH SZ WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST CLIENT JOB# BORING# SHEET -- -------i LEVEL5, LLC 5924 B-9 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVEL5, LLC F. — L. SITE LOCATION -0-- CALIBRATED PENETROMETER 330 S Denton Tap Road, Coppell, Dallas County 1 2 TONS/FT2 a 5* PLASTIC WATER LIQUID LIMIT CONTENT% LIT% z DESCRIPTION OF MATERIAL ENGLISH UNITS • • Z w p RO KDQ?ALITY DESIGNARTION&RECOVERY z �• p W W W >- BOTTOM OF CASING LOSS OF CIRCULATION Ertw z 20% 40T "60% EC 80% Iu0% llJ J Q w 2 2 2 00 SURFACE ELEVATION 512 STANDARD PENETRATION <0 < < w 3 w CO BLOWS/FT 10 20 30 40 50+ 0 CLAY, Dark Brown to Grayish Brown,Moist, —- S-1 ST 24 24 Very Stiff to Hard,(CH) -I- - 510 4.5 —- S-2 ST 24 24 13.4 2.5 — S-3 ST 12 12 5 END OF BORING @ 5.00' _ 4.5 —- 505 10— —- 500 15— — - -- 495 20— - -- 490 25— - -- 485 30— THE 0— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL WS WD BORING STARTED 04/28/12 • WL(BCR) t WL(ACR) BORING COMPLETED 04/28/12 CAVE IN DEPTH 4 WL RIG B-57 FOREMAN Miguel DRILLING METHOD ST CLIENT JOB# BORING# SHEET LEVEL5, LLC 5924 B-10 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER NCU Coppell LEVEL5, LLC SITE LOCATION -0- CALIBRATED PENETROMETER TONS/FT2 330 S Denton Tap Road, Coppell, Dallas County 1 2 3 4 5+ PLASTIC WATER LIQUID LIMIT CONTENT% LIMIT DESCRIPTION OF MATERIAL ENGLISH UNITS • a F z w LL RO KERALITY DESIGNalB &RECOVERY LL z F BOTTOM OF CASING LOSS OF CIRCULATION w z 20% / 4 6Q%' 80% WD% z CL 00 SURFACE ELEVATION > 3 STANDARD PENETRATION o < < < 513 3 W9 BLOWS/FT 10 20 30 40 50+ 0 CLAY, Dark Brown to Grayish Brown,Moist, J/ 11.6 —- S-1 ST 24 24 Hard,(CH) j • -9- - � 4.5 — S-2 ST 24 24 510 -0- 4.5 - S-3 ST 12 12 -9- 5 — END OF BORING @ 5.00' 4.5 —505 10— — —- 500 15— — —- 495 20— — —- 490 25— — —- 485 30— THE 0— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. 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N W E Approximate Boring Location S lliNMEI Boring Location Diagram ril ECS-TEXAS, LLP4950 Keller Springs Road, Suite 480 NCU Coppell Addison, Texas 75001 330 S. Denton Tap Road 1,, Coppell, Texas Prepared By: SCALE: PROJECT No.: GAK NTS 19-5924 Background Image: DATE: FIGURE: Aerial 05-14-2012 BLD ' , WO 4tid L us) r Tuesday Morning i c , E ..., -'5#• 2 C cu N ="' ai< , 0 CD 0- '*-‹ 60) rf 0 ET = i = . 0 Wynnpage Dr -73°71 P3 (0 41%.renwood Dr 0... a) ito,.,, . o ‘0-16 t a ‘.. of 0 c.... , tu "an Van Bebber Dr 0 1 i " III E Bethel Sc Rd 1 c , ri i CI a) CD Sandy Oak Ln povi c (E) (1.4141w r+ ri) Ei." (A r+ Up I- (1) M 0 SECTION 7 NATURE OF CONSTRUCTION ACTIVITY Coppell E Care CHill& Wilkinson Construction Group,LTD. Superintendent: Mathew Vea/Billy Haley Site Description A. New Construction B. Install Utilities C. Concrete Paving D. Landscaping E. Construction of Buildings II. Potential Pollution Sources A. Excavation 1. Fuel/Oil/Lubricants (equipment) 2. Sediment/Dirt 3. Litter B. Site Utilities 1. Fuel/Oil/Lubricants (equipment) 2. Sediment/Dirt 3. Litter C. Concrete and Paving 1. Fuel/Oil/Lubricants (equipment) 2. Curing compounds 3. Concrete washouts 4. Sawing concrete dust/slurry 5. Litter D. Landscaping 1. Fuel/Oil/Lubricants (equipment) 2. Sediment/Dirt 3. Weed killer 4. Fertilizer 5. Litter E. Construction of Buildings 1. Fuel/Oil/Lubricants (equipment) 2. Waste and Excess materials 3. Glues/Solvents 4. Paint/Thinners 5. Sawing concrete dust/slurry 6. Roofing materials 7. Bonding agents/Bond breakers 8. Litter F. Major Construction Controls 1.Controls to reduce pollutants a. Fuel/Oil/Lubricants- containment and storage b. Sediment/Dirt—silt fence c. Litter—trash cans and dumpsters d. Curing compounds—covered and stored e. Concrete dust/slurry—water and clean up f. Weed killer -use per manufacturers recommendation and clean up spills g. Fertilizer—use per manufacturers recommendation and clean up spills h. Waste and excess materials—trash cans and dumpsters i. Glue/Solvents—use per manufacturers recommendation and clean up spills j. Paint/Thinners—use per manufacturers recommendation and clean up spills k. Roofing Materials - use per manufacturers recommendation, clean up spills, and proper excess waste disposal 1. Bonding agents/Bond breakers—use per manufacturers recommendation and clean up spills m. Human waste—portable restrooms and proper maintenance G. Stabilization Practices 1. Concrete 2. Landscaping Total Acres Disturbed 1.32 SECTION 8 POTENTIAL POLLUTANT SOURCES/LISTING OF CHEMICALS ONSITE/SPILL REPORT Hill & Wilkinson does not foresee any "Potential Pollutant Sources nor any significant Chemicals Onsite" for this project . `n racoy' o 6 6 O N N a) N v ca •- ca 'L 0 c; .Q O 'a is — aa)) a) a) O c ' W C W C Lai a' c o o v ".° 8 E E cED CIS a a) m a) o -v ,n is •- ca E 4- o fc o f m ca -Q ` c — aii a > — mom Tsa -E Ta *6 }. o mins c `n •- wca cam (U a. z � �-, c c `- 0)-c 0 o .n -2 m o G -a ED ,Li IF. J c cJift ._ •c '~ ca) p -ooO O Q g g C o .a N a) E 0 II IMO o �- o .. — asoo � a) .PI°_c r- our ou, O � rn uSo Qrncnzo I- -0caEZ § CO .S (n ..- 111.11 0 c) 41-• c C a' c O •V N_ N N N N J L T _ Ny-+ N r r C-1::: $1, Q) .c g0 as iiti > ,. C o) Nom a t coo \ 1 \ M 1 .9- E LQ) U E „, . ._ . 5 .,--- a) ca 7-3 mai L o as oa U a Vii- r N CO Nzr if) I U t % �F 2.' R .4ti ."y .. +,y 1 r. +C '+r K Y 7� ^`4u ;rA r t t.., s o e ie a ,:-...;,'„.1,:,- .s f 7t_tet tK^S::, .-- 4�' r t Y., <`'" ro H.�;,e' r .f z „,,:i:-..-,:;- _ 4.-- '' i' ae }4,£ .Qx .�a +, t 'j *' i' 4. Li ti- p 'tea w'.'^ ^ ''-'1..'1 �� $f ',.-,.'..4,''..; r . t :�? 'tet i ''''.1.,i',44;7..."%-'1..t.4.'. .., J s, ''•d � 1 kf -ti ��zt 7-+. t t r iSs ,L -1,437.,',,,;�,'; ‘,2--e-•---ya Z C� Cr.s ,-;°,0A,1,,,, r �,. k w T i �7 3 °" rk r ' r F :,14.4-1...•.,.',4,1, "i`s/moo C"' t " ti.0,-' t , • ,: k a c �c a '� s .y 3 _ A Y AI/C +? c r d t r..6 tr eq... `;I POTENTIAL POLLUTANT SOURCES/LISTING OF CHEMICALON SITE Potential Pollution Sources: A. Massive Dirt Excavation 1. Fuel/Oil/Lubricants (equipment) 2. Sediment List of Chemicals on Site: Date Onsite Location ENVIRONMENTAL PROTECTION Material Containment/General Spill Response All hazardous material stored on any job site shall be protected from spillage by the use of a properly constructed containment area or berm. The following general response actions have been identified for spills and pond process water discharges from the ponds. For major spills, these emergency procedures will be implemented. As applicable, the spill response procedures for containers and tanks discussed below will be utilized. 1. The first person discovering the spill will notify the Project Superintendent or Project Manager. 2. Employees will evacuate the immediate area. 3. The Project Superintendent or Project Manager or designee will identify the character, source and amount of released material and contact the corporate V.P. of Safety/Environmental. 4. The Project Superintendent or Project Manager will immediately assess hazards to human health or the environment. 5. The Project Superintendent or Project Manager will evacuate the construction site, if necessary. 6. Local areas surrounding the facility will be evacuated, if necessary. 7. After ensuring the safety of personnel, the Project Superintendent or Project Manager or the V.P. of Safety/ Environmental will determine whether a reportable discharge or spill has occurred. If it is determined that a reportable discharge has occurred or the spill or discharge has migrated off-site,then notify the following: Local Hazardous Spill Emergency Response Dept. 911 Texas Commission on Environmental Quality(TCEQ) Regional Office(Air and Waste) 817-469-6750 State Emergency Response Center 800-832-8224 National Response Center(NRC) 800-424-8802 NOTE: Notifications should be made as soon as possible. Verbal and/or written follow-up notifications may be required to satisfy the notification requirements identified in 30 TAC 327.3 (Notification Requirements). 8. Provided all safety precautions have been taken and after providing notification to the appropriate regulatory agencies, the Project Superintendent or Project Manager will coordinate immediate actions to stop the release (i.e., shut off pump(s), close valve(s), etc.) unless the release may pose a hazard to human health (i.e. unable to access pump or valve without entering the plume). 9. The person detecting the release will notify the Project Superintendent or Project Manager who will initiate remediation or response activities which could involve outside resources such as an Emergency Response Team or other contractors. 1 10. The Project Superintendent or Project Manager will assess hazards to human health or the envi- ronment. 11. Minor spills outside of contained areas will be removed by pumping the material to a storage tank, or to other containment devices such as, but not limited to, 55-gallon drums or to a tanker truck. The material may also be absorbed using appropriate material and placed into containers for disposal. The absorbed material and any affected soils will be removed and placed in an appropriate container. Following the containerization of spilled materials, absorbed materials and/or affected soils, the containerized material will be tested for compatibility and stored in a container storage bay with compatible wastes until it is disposed of properly. 12. If a release outside the containment area is detected,Hill & Wilkinson personnel will immediately isolate the spill area by closing off the source (if possible), and contain the spill utilizing spill booms, earthen dams or other appropriate containment materials. Recovered material will then be collected as described above. 13. Minor spills within contained areas will be removed by pumping the material to a storage tank or to other containment devices such, but not limited to, 55-gallon drums or to a tanker truck. The material may also be absorbed using appropriate material and placed into containers for disposal. The following safety precautions and countermeasures will be implemented by the Project Superintendent or Project Manager during a spill response: • Evacuate all unnecessary personnel from the immediate area of the discharge. • Remove injured personnel from the hazardous area (only if they are, or may be exposed to more hazards). • All personnel within the contaminated area will wear proper safety equipment, such as protective clothing,boots,or gloves. • Clothing, contaminated by spilled materials, will be immediately removed to minimize contact with the skin. NOTIFICATION REQUIREMENTS Spill events discharging oil, hazardous substances, industrial solid waste, or other substances in a quantity equal to or greater than the reportable quantity listed in 40 CFR in any 24-hour period are subject to specific notification requirements. Upon the determination that a reportable discharge has occurred,Hill & Wilkinson personnel shall notify the TCEQ as soon as possible but not later than 24 hours after the discovery of the spill or discharge. Information required for initial notification shall include: 1. the name, address and telephone number of the person making the telephone report; 2. the date,time, and location of the spill or discharge; 2 3. a specific description or identification of the oil, petroleum product, hazardous substances or other substances discharged or spilled; 4. an estimate of the quantity discharged or spilled; 5. the duration of the incident; 6. the name of the surface water or a description of the waters in the state affected or threatened by the discharge of spill; 7. the source of the discharge or spill; 8. a description of the extent of actual or potential water pollution or harmful impacts to the environment and the identification of any environmentally sensitive areas or natural resources at risk; 9. if different from paragraph (1) of this subsection, the names, addresses, and telephone number of the responsible person and the contact person at the location of the discharge or spill; 10. a description of any actions that have been taken, are being taken, and will be taken to contain and respond to the discharge or spill; 11. any known or anticipated health risks; 12. the identity of any governmental representatives, including local authorities or third parties, responding to the discharge or spill; and any other information that may be significant to the response action. NOTE: It is the policy of Hill & Wilkinson, Ltd. that agency notifications for off-site spill releases be made as soon as possible (e.g. within 1 hours of discovering release) even if all of the above information assessments have not been identified at the time of the initial notification. Verbal and/or written follow-up notifications may be required to satisfy the notification requirements of the TCEQ. Authorized Mill & Wilkinson personnel shall notify the TCEQ as soon as possible whenever necessary to provide information that would trigger a change in the response to the spill or discharge. If the discharge or spill creates an imminent health threat, the responsible person shall immediately notify and cooperate with local emergency authorities in providing support to implement appropriate notification and response actions. In the absence of a local emergency authority, the responsible person shall take reasonable measures to notify potentially affected persons of the imminent health threat. Notification shall also be given to property owners and residents that may be adversely affected within two weeks after the spill event. Spill events discharging oil, hazardous substances, industrial solid waste, or other substances in a quantity equal to or greater than the reportable quantity listed in 40 CFR 302.4 in any 24-hour period are subject to specific notification requirements. Upon the determination that a reportable quantity discharge has occurred,authorized Hill & Wilkinson personnel shall notify the TCEQ as soon as possible but not later than 24 hours after the discovery of the spill or discharge. In accordance with 30 TAC §327.4, a "reportable quantity" is defined as follows: 3 Oil,petroleum product, and used oil: Spills or discharges onto land: RQ = 210 gallons Spills or discharges into waters of the state:RQ =quantity sufficient to create a sheen Hazardous substances: Spills or discharges onto land: RQ = as reported in Table 302.4 in 40 CFR§302.4 Spills or discharges into waters of the state: RQ = as reported in Table 302.4 in 40 CFR §302.4 except where Final RQ is greater than 100 pounds in which case the RQ shall be 100 pounds SPILL RESPONSE CONTACTS Texas Commission on Environmental Quality (TCEQ) Regional Office(Air and Waste) 817-588-5800 State Emergency Response Center 800-832-8224 National Response Center(NRC) 800-424-8802 U.S. Environmental Protection Agency(EPA)Region VI 214-665-6428 Emergency Response Number (24 hours) 866-372-7745 Texas Parks and Wildlife(Region 3) 903-566-2518 North Texas Municipal Water District 972-442-5405 Texas Department of Public Safety (Emergency Number) 512-424-2000 Texas Department of Transportation 800-558-9368 Boots & Coots Emergency Response 800-421-4911 24-hr 817-595-5714 office Caldwell Engineering,Inc. 972-889-7200 4 0 SECTION 9 NON STORM WATER DISCHARGES ASSOCIATED 0 C NON STORM WATER DISCHARGE The following items may occur during construction activities but will not be directly introduced into storm sewer system without being filtered through appropriate BMP's. (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,or 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); (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,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,but 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. SECTION 10 PLAN NOTIFICATION LOG AND APPROVED DRAWINGS SPILL REPORT FORM Project Type and Location: Spill Reported by: Date/Time Spill: Describe spill location and events leading to spill: Material spilled: Source of spill: Amount spilled: Amount spilled to waterway: Containment or clean up action: List Injuries or Personal Contamination: Action to be taken to prevent future spills: Modifications to the SWPPP necessary due to this spill: Agencies notified of the spill: I 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 SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION,INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWING VIOLATIONS. Contractor Superintendent Date Plan Notification Log * Note start of activity,completion of activity,change in scope of work,completion of an area,removal of erosion control device and or maintenance of erosion control device.Mark plan note#on posted Erosion Control Plan to indicate current site conditions as they occur. Plan Note# Description of Activity Date: Subcontractor Erosion Control Method Per Plan or as Noted "I 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 that there are significant penalties for submitting false information,including the possibility of fine and imprisonment for knowing violations." Inspector: Date: Plan Note#_ Description of Activity Date: Subcontractor • Erosion Control Method Per Plan or as Noted "I 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 that there are significant penalties for submitting false information,including the possibility of fine and imprisonment for knowing violations." Inspector: Date: Plan Note# Description of Activity Date: - Subcontractor Erosion Control Method Per Plan or as Noted "I 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 that there are significant penalties for submitting false information,including the possibility of fine and imprisonment for knowing violations." Inspector: Date: Hill & Wilkinson, Ltd. EROSION CONTROL PLAN The Erosion Control Plan part SWP3 is to be marked up and posted on the wall of the trailer An original copy without markings to be kept in the Storm Water Book You do not have to keep one outside on the SWPPP Board Purchase a set of colored pencils and/or highlighters Somewhere on your plan, make a legend of what each color designates On your Erosion Control drawing, show your drainage patterns / slopes (arrows) using a colored pencil Cloud in the areas of soil disturbance with a highlighter Show the location of all Trailers Show the location of all Portable Toilets Show the location of Structural Controls (silt fences, inlets, etc) Show the location of Stabilization Practices Show the location of Chemical Materials (Diesel, form oil, curing compound, etc) Show the location of Material Staging/Storage.... If you have an offsite location make a notation of the address If you do not have an offsite location, make a note at the bottom of your plan stating "NO OFFSITE STORAGE" Show the location of Employee Parking (onsite and offsite) Show the location of Heavy Equipment Parking Show the location of Construction Entrance Show the location of Concrete and Mortar Washout Show the location of Surface Waters if any Show the location of Water Discharge Areas Identify borrow pits (Including off site) On all locations, write in the date placed and the date moved or removed and keep those drawings updated Make a note on the plan the address of where any fill and concrete deliveries are coming from or staple a delivery ticket to the plan. 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Vii[,? - :6e. ! 0 .- _ o 74: I ii a ',.•'T. e l a Gn :c. i, t �i 1 {- I a it _._. _ 4# {�:; ID 1r ■ It _F�.• i� .AIL1 „ \' ' j 7. 0 t. .� ! • 4%• 4 ,� 0 * ;;.‘ _41 L 0 ! 1, 1 '. . ______, 4.1 ,1 1 .4 4 ,,L. , ,-...„ . _ 1 I ;fix - - _ i 1 Concrete Alley; _____ _.. =— .l.i - _.. � ` ti I I I II c 1 ' . <g� i I a I v `li .i B lli Lys -...:= 01 U6 111 tl n m P 3zo PI M ' 0 o.. E-CARE COPPELL m =k REVISIONS DATE EY t � � COPPELL, TX :....... f w a , i I i-...1. j^ Adamsii_ j Pa .,. :rPROPOSED ; 'M DRAINAGE AREA MAP 910 S Kimbell Avenue.Soulhlake,Texas 76092•(817)328.3200 011§0,41:1 gg g21 8 10101A 211 1 N S gm 3 c .4. e-4. 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RE\'ISION6 Dni[ SY• F ota E-CARE COPPELL ��* Adams __ n �' • _ ', COPPELL, TX [--- 1 ;4','s 1 N A k.M,A-•:`'i DRAINAGE PLAN p� Hw.w 910 S.Kimbell Avenue■SouthIsko,Texue 76092■(817)322.3200 "".. norm,Mmolimmnn.vee.m ,a,reaw...•,.•. Kerout,.w.....•,,.301. ROT m....>.- •p.,nla..mue., M1..,�,w,.m,,,,0,,..< CM.,,Om.. ,..0613.413wr4.. A..1....mm.Pm...3Poww.n,,..0,2 Union Point ID - D••Ion Point ID a Tr 871 0 0 • 0O 0 O Z fC P £m"8 IS i6 if, ., up.o-..m Loudon 0-4M"J 3 4 V L°ffi x ,..4 IR.o-wn Lee.non __ 1DwIYn PanO & r `•9 8 6 _._.___`.--- I I I ' f NLiFM-> 8438613 8 8w . (c".4"Pam) i I j I. zel .£p�ux m!L«J.R.am Ajxs .£ma wo-o«m�M.m r 8N&aa 883386 8"&508 883386 b .. r... .......... :.... ...i.. _i._... _. g-',,."3 $NaNna " $ N-'88�, 88ACSt3 ..,*„. 8E1�P,3 8,8N�B _..._.-'^- n C FL•503.65 I. — __ .Y A.b00.00-s4 1 m > •p >> ; FL 1 60585 a2 `g[',`ONNECT TO ru w i dalnpa An. �'R>' w�'Dnlnp•AM I I- EJC CURB INLET-I--t- .,b b • z. <>i b b • .. .--_ - .I._._. 1 • I ERA..TCp�•60985 .. i INSTALL: cn ,��--I .22 S'BEND I R•SO807 1 _ I ISI BTu..,,, 7-8D•t ; T'�' ,Ii u'� IN L '° --i---I- --r-- ' _�1�ala.oRATEuaEr• _.a 8888C 8e8888 -PPPPP PPPPPP t7Mol I>abp. 1 88880 8m({88N -3 AMI AZ*10 N n•610.13 P 8 a RunoR a Runoff - .-1 ISI 1111111 4Poeeeo eo 85050 oP88888 PPPPPP ' Co•mel..., 88888 PPPPPP Runoff.m•C _00000 000oee Immm.nNI 0 0e e 0 050 InMm.nbl + FL•50808 _-_ IL4� MEM 11111 u...fm m - .G., >3 g _ O UPPP_ ' mf11P _11'11 50506506 PPPPPP 6508650 PPPPPP 1. .M-80.1 �o�r:�ipl ALS 8 8 8 8 8 Taal VA. notal•cA- .... mug 850885 inn F •• DI-210.43 NLEr •O NNNNN 888888 S Dnian storm a9 FL 1r�•we.7i..__....�- I� � 1�---I O 88888 888888 os°..lensbnn - FL•608.90 1 I sT 1 t- ..00. eemmoo ,�50100me 8 8.0050 .0 Poo a Mierm. 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(Culnet Rin) 0 3 N N N a•0 •.(Cu n RI•. 0 <O - 7C -(- __ _. w y .._ w s — _ oO eeeoe4�oPPooP4 steps c w 4 ' s n-6 -I-4 e 3 eD000 „ gg G • @ r o 8450 Pg mew a I. 6'0'615 §§�§ocondon = 'ooe88888��e'coneat c _ ._ Ii ..._... i i _.. °o Floe dD.PtN h S S !Mil 0 ,i ..r-,-•-• 1 ..rit ' S S S S Y rg--i-,- 8.Co d It i f C 5€i 5§l€�i P.Flew 0.pm In O A �7� fEdiEf E COnduN 3 0 § g .. - -I c gg gg FOenen 81ew 7~5 g g g g g .ii III Frleeon Slop. y O IiiiiO §§141@ 2c:. i g $&$P$ ,.iS"99I 'S':..5f. I S fn co iiiiirain' 6$.Fric5On Lon Friellon Los 1111 M-4.11 U.tn.m NGL ; s 111' S.,S 1111 Upstream NOL Z C � & &P .2R96't C'ElevoCon 508888 50439 " 50.. N'Merlon • r. X 1111 11111 $.�ie.';ne •2 11111 111111 s 0°00.tn. ;C -85088 88,&88 P =&413f 8888va -HOLElw•non f00 8Q 871 ,u u m 0 u UP.tn.m • 871 O 00 0 (n "NNP Downtown 'LLL ;Mil !v.I«in mi .P w."Nwe 998 SNB Nnvl«ItYrv) L6&&8 C8ifi$ q=7., UPNn.m ...._ Peo Pe PP PPOPP 00 t1p� 88888 =6wvGs y.50"x''7 Nnd 88888 &NQmeemP8 tl.vaoc14..1 ,I ,•itr —._... 50,428 50'/28 O o P e P oownIMm PPPOPe Po PPPPPP DO"nt1fea"' l 88888 '188;;;;;;; M.(1,1266" 'Mad 8888'8 &&Nma> 0‘41°`"'' N.ad 0000- P+..Pe+ Minor Co. 9, o0oo_ o. CO.. Minor Lon . -= - -.. .... $, Q0 _ . 508086 888888 N Ce•Iclnt K Q 88888 P$'P P P 8 N Cosmcl•nt N I O FL••308.31 ...'.... L`pNNECT T6 ePOo a ad _ 5000 000000 8•I^',��0 0000 000000 00","9FL7r•508.3I _ ONAC0 a02, P PP e ..N TE P P 0 0 0 PPPPPP Taal Woo P e e o e 0 P P o P P Tobl Miner FL Ir•6G6-T • E%.nom•509 38 ..1— '050 oe " u 8 '1'L 8888 'Lon www .ePPPm e.. 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ET 4 2 �° $ m i rs w X01 g Q COPPELL, TX � .. ; a��l�e CATS s b .� t , Adams I g �<<� ��`° PAVING DETAILS 910 5.Kimball Avenue•Southlake•Tex..76092•(8I7)328-3200 ::::6142.9..:".±:3"." SECTION 12 BEST MANAGEMENT PRACTICES AND SWPPP MAINTENANCE HILL &WILKINSON GENERAL CONTRACTORS 2703 TELECOM PARKWAY/SUITE 120/ RICHARDSON, TEXAS 75082 214.299.4300 PHONE/ 214.299.4444 FAX BMP/SWPPP MAINTENANCE Enclosed in this notebook is the documentation which makes-up Hill & Wilkinson's (CPPP) for E-Care Emergency Center at 330 S. Denton Tap Road in Coppell, Texas 75019, Dallas County. This site will be inspected at least once every even (7) days and within 24 hours of the end of a storm event of 0.5 inches or greater. This inspection is to insure that our erosion control devices are in place and are functioning properly. Also, to observe any other possible pollution problems. During the course of this project our erosion control plan may be revised to help control specific conditions. When the capacity of the BMP's build up is up to 50% or are damaged as noted in inspections, they will be repaired as needed as soon as possible and with the next anticipated rain event. • Paul Driscoll Chief Executive Officer PD/trp • www.hill-wilkinson.com • SECTION 13 OFFSITE STORAGE OFFSITE STORAGE Item Stores Address If Any SECTION 14 ENDANGERED SPECIES AND HISTORIC SITES HILL &WILKINSON GENERAL CONTRACTORS 2703 TELECOM PARKWAY/SUITE 120/ RICHARDSON, TEXAS 75082 214.299.4300 PHONE/ 214.299.4444 FAX February 19, 2014 To Whom It May Concern: RE: Endangered and Threatened Species E-Care Emergency Center 330 S. Denton Tap Road Coppell, Texas; Dallas County 75019 Dear Sir: Upon our inspection and review of the above referenced project on this date, none of the Endangered species listed below are apparent to be found. Hill &Wilkinson Construction Group, Ltd. deems this project to be in compliance required for the Storm Water Pollution Prevention Plan (SWPPP) concerning Endangered Species within the construction site. Based on U.S. Department Fish and Wildlife, the following species have the potential of existing in Dallas County, Texas. Common Name Scientific Name Status Artic Peregrine Falcon Falco peregrines tundrius Threatened Bald Eagle Haliaectus leucocephalus Threatened Black Capped Vireo V. Atricapillus Endangered Henslow's Sparros Ammodramus henslowii Candidate Migrant Loggerhead Shrike Lanius ludovicianus migrans Candidate Least Tern Sterna antillarum Endangered Mountain Plover Charadrius montanus Candidate Western Burrowing Owl Athene cunicularia bypugaea Candidate Whooping Crane Grus Americana Endangenred Wood Stork ycteria Americana Threatened Plains Spotted Skunk Spilogaleputorius interrup Candidate Texas Garter Snake Thamnophis sirtalis annectens Candidate Texas Horned Lizard Phrynosoma cornutum Threatened Timber/Canebrake Rattlesnake Crotalus horridus Threatened I 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 SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IM'RISONMENT FOR KNOWING VIOLATIONS. ill &Wilkinson Construction Group, Ltd --_____._.� Paul Driscoll—Chief Executive Officer www.hill-wilkinson.com Alaska Department of Fish & Game Arctic Peregrine Falcon (Falco peregrinus tundrius) All About Wildlife Home Photo courtesy of USFWS Status Alaska species of special concern Description Arctic peregrine falcons are medium-sized falcons, about 14-18 inches long, with long, narrow wings that commonly span 43 inches. Adults have blue-gray backs with white chests and heavily-barred bellies. Younger birds (less than 1 year of age) have brown backs, heavily streaked underparts, and buff-colored chests. Both adults and immatures have dark heads with a distinct mustache mark below the eye. Habitats and Habits An extremely powerful flier, the arctic peregrine falcon mostly eats birds that are caught in mid-air chases of breath-taking speed. Nests are on cliffs or bluffs and are usually near rivers or lakes that provide habitat for the shorebirds, songbirds, and waterfowl upon which the falcons prey. Arctic peregrine falcons nest in the treeless tundra areas of Alaska, Canada, and Greenland, and migrate south through Canada and the United States. They spend the winter in warmer climates from the southern United States to southern Argentina and Chile. In Alaska, arctic peregrine falcons are found nesting mostly along rivers in northern and western Alaska. Causes of Decline The use of DDT and other toxic pesticides was the primary cause of the decline of peregrine falcons. Pesticides which are used to control insect populations accumulate in tissues of insect-eating fish and birds. These poisonous chemicals are further concentrated by raptors that catch or consume insect eaters. They affect peregrine falcons by directly killing them, altering their behavior(such as nest defense), and causing females to lay eggs with such thin shells that the eggs often break before hatching. Restrictions on the use of these pesticides since 1972 have allowed arctic peregrine falcons to recover. Currently, about 250 pairs nest in Alaska and thousands nest throughout arctic North America. Arctic Ocean Russia ALASKA Canada i .,r.6"4 Pacific Ocean Range of the Arctic Peregrine Falcon Research and Recovery Research on arctic peregrine falcons has focused on monitoring changes in pesticide levels, breeding success, and population size. Although populations declined due to exposure to environmental contaminants, the recovery of arctic peregrine falcons has been enhanced through the careful protection of nesting sites. Cooperative efforts between land management agencies and resource exploration and development interests have allowed arctic peregrine falcons to reproduce without disturbance at their remote nesting areas. Text: Ted Swem For Additional Information Please contact: C PR • 6yCNgLasts +' s . • ** • h . • 4 '11111k Slack Capped Vireo Identification Tips: • Length: 4 inches • White spectacles • Red eye • Black cap (somewhat paler in females and immatures) • Yellow wing bars • White underparts with yellowish flanks • Olive upparparts • Thick bill with hooked upper mandible • Sexes similar • Juveniles similar to adults • Restricted range in Texas and Oklahoma Physical Characteristics V atricapi//us is the smallest and most distinctly marked of all North American Vireos. This bird is fairly small with an average height of 11 cm and wingspan of 16.5 cm. This bird is unique in that it is the only North American bird to have white spectacles on a jet-black head. The female, however, has more of a slate- gray head coloration. Both males and females have red eyes and yellow to whitish wing bars. These birds are generally olive above and white below with yellow flanks. The female is smaller in size and juveniles are more brown above , rather than olive, and buffy below. Black-capped vireos are also distinctly different from all other New World, neo-tropical Vireos because of their quick action, bold patterns and quick flight. The flight of V actricapi//us is quick, nervous and rarely sustained. Description Male Black-capped Vireos can best be identified by their glossy black cap and white spectacles. Females have the same markings, but the head is slate gray instead of black. Both are olive above and white below and are about 4' inches in length, with the female slightly smaller than the male. Habitat requirements The Black-capped Vireo requires a young, semiopen habitat of small trees and shrubs. In general, black-capped vireos prefer low thickets in scrub-oak woodlands, arid hilly regions and ledges on steep hills near water. It is believed that the largest known concentration of V. airicapi/lus can be found near Austin, Texas, located in the Edward's Plateau region which encompasses 17 %of the state of Texas. Geographically, this area consists of oak thickets combined with heavy ground cover as well as shallow, rocky canyons that receive abundant, bright sunlight. These places are described as "the hottest places imaginable", for birds at least. Distribution The historical breeding range of the Black-capped Vireo was the south central United States and north central Mexico. This species was once found as far north as central Kansas, but because of the clearing of brushlands for agriculture and subsequent overgrazing by livestock, today the Black-capped Vireo breeds only as far north as Blaine County, Oklahoma. There are two small populations in west-central Oklahoma, with the largest populations on the Lampasas Cut Plains and the Edwards Plateau in Texas, where the numbers are estimated at 1500 pairs. The current population of vireos in Mexico is unknown. Migration and wintering grounds During the winter, the Black-capped Vireo can be found on the west coast of Mexico, from southern Sonora to Guerrero. The male vireos leave the wintering grounds and arrive in Texas from late March to mid-April. # +t +rr• `1 4a Corbis.cam • con Bald Eagle Studies have shown that "northern" bald eagles fly into the southern states and Mexico, and the "southern" bald eagles fly north into Canada. Because of these finding, the subspecies of "northern"and "southern" bald eagles has been discontinued in recent literature. Bald eagle body description Color-The adults have a blackish-brown back and breast; a white head, neck, and tail; and yellow feet and bill. Juvenile bald eagles are a mixture of brown . and white; with a black bill in young birds. The adult plumage develops when they're sexually mature, at about 4 or 5 years of age. The bald eagle is the only eagle confined to North America, and there are no other large .✓ „ black birds in North America with white heads and tails. Size-The female bald eagle is 35 to 37 inches, slightly larger than the male.With a wingspan which varies from 79 to 90 inches. The male bald eagle has a body length from 30 to 34 inches. The wingspan ranges from 72 to 85 inches. Bald eagles weigh from ten to fourteen pounds. Northern birds are significantly larger than their southern relatives. Life expectancy-Wild bald eagles may live as long as thirty years, but the average lifespan is probably about fifteen to twenty years Eagles sit at the top of the food chain, making them more vulnerable to toxic chemicals in the environment,since each link in the food chain tends to concentrate chemicals from the lower link. Causes of death to the bald eagle are: 1. Fatal gun shot wounds by recreational hunters or hunting them for their feathers and talons to sell on the black market. 2. Electrocution from taking off and landing on power poles when their large wings bridge two wires, resulting in fatal burns or heart failure. 3. Lead poisoning from eating wounded deer, ducks, and other game which eluded the hunter and later died. Three pellets can kill an eagle. 4. Less adept at hunting,young eagles are more likely to eat carrion, and possibly ingest poisoned meat used to bait wolves and coyotes. 5. Collisions with vehicles. 6. Starvation where the food is scarce. Up to half of them starve to death their first winter, due to lack of hunting skills. 7. If an eagle ends up in the water due to misjudgment of altitude or snagging a large fish, there's a danger they may die of exposure. \ AO C < * 41. ‘ \411L '1 „ 1 ', 11 / /. ,/' r / / A. s ` > .-, > ,,, Henslow's Sparrow Status: State Threatened (1996). 0 Occurrence: Uncommon migrant south and central; rare migrant north. Uncommon summer resident south and central; rare summer resident north. Normal summer range covers about four-fifths of the state, with rare occurrences in northern counties. Not a common resident anywhere in state. A map outlining Pre-1977 and 1997 to Present Distribution is available. Aid to ID: This small, short-tailed bird is about 5” in length. The head is flat, olive- colored and striped, the wings are reddish, and the bill is large and pale. Best identified by its song, a short, quiet "se-lick' accented on the second syllable. Habitat: Undisturbed pastures and meadows, timothy hayfields, and uncultivated fields, generally preferring mesic or wet habitats with relatively tall and dense, but also somewhat sparse and patchy vegetation. Food Habits: Primary food is insects; also eats spiders, and seeds of grasses and weeds. Young are fed only insects. 4.... Natural History: Breeding: Clutch size: 3-5 cream white eggs; laid from late April through late July. Incubation: 11 days. Fledging period: 9-10 days. Nest: Deep cup of grasses, built at the base of a thick clump of grass; 2-3 inches off the ground. Nest in loose colonies or singly. Management Considerations: The U.S. population of this uncommon and locally distributed species has declined more than 68% from 1966-1991. The Wisconsin population has also declined over that period, and it has dropped an average of 5% per year from 1982-1991. This species is a habitat specialist that has suffered from the loss of uncultivated fields with tall and dense vegetation. Henslow's sparrow ranked highest in the Wisconsin Grassland Bird Study's ranking of birds of management and conservation concern in the state. The control of woody vegetation is critical on public or idle lands, but this species will tolerate some woody vegetation. Also, because this species requires dense litter layers, it will benefit directly from management that promotes short burning rotations. - I'', f,,,..,:.,t ., �, f to,. P • r LEAST TERN The interior population of the least tern (interior least tern)is an endangered species. Endangered species are animals and plants that are in danger of becoming extinct. Threatened species are animals and plants that are likely to become endangered in the foreseeable future. Identifying, protecting, and restoring 0 endangered and threatened species is the primary objective of the U.S. Fish and Wildlife Service's endangered species program. What is the Interior Least Tern? • Scientific name -Sterna antillaru,n • Appearance- This 8 to 9 inch birds have a black "crown" on their head, a snowy whiter underside and forehead, grayish back and wings, orange legs, and a yellow bill with a black tip. • Habitat- From late April to August, terns use barren to sparsely vegetated sandbars along rivers, sand and gravel pits, or lake and reservoir shorelines. • Reproduction - The terns nest in a shallow hole scraped in an open sandy area, gravelly patch, or exposed flat. The nest in small colonies. The chicks leave the nest only a few days after hatching, but the adults continue to care for them, leading them to shelter in nearby grasses and bringing them food. • Feeding Habits -The terns hover over and dive into standing or flowing water i to catch small fish. Range - Interior least terns breed in isolated areas along the Missouri, Mississippi, Ohio, Red, and Rio Grande river systems. Their winter home is not known, but probably includes coastal areas of Central and South America 1 Why is the Interior Least Tern Endangered? • Habitat Loss or Degradation - Dams, reservoirs, and other changes to river systems have eliminated most historic least tern habitat. The wide channels dotted with sandbars that are preferred by the terns have been replaced by narrow forested river corridors. • Nest Disturbance - Recreational activities on rivers and sandbars disturb the nesting terns, causing them to abandon their nests. What Is Being Done to Prevent Extinction of the Interior Least Tern? • Listing -The interior least tern was listed as an endangered species in 1985. • Recovery Plan - The U.S. Fish and Wildlife Service developed a recovery plan that describes actions needed to help the tern survive. • Research - Additional information is being gathered on the population status of the bird and habitat it prefers. • Habitat Protection - The U.S. Fish and Wildlife Service, U.S. Army Corps of Engineers, and other agencies review proposed changes in river flow or new reservoirs and the effects those changes may have on tern nesting areas. • Public Education - Public education programs have been developed to raise awareness of the tern's plight. What Can I Do to Help Prevent the Extinction of Species? • Learn - Learn more about the interior least tern and other endangered and threatened species. Understand how the destruction of habitat leads to loss of endangered and threatened species and our nation's plant and animal diversity. Tell others about what you have learned. • Write - Write to the U.S. Fish and Wildlife Service or your State fish and wildlife agency to learn more about endangered and threatened species. • Join - Join a conservation group; many have local chapters. 0 '�'^::i 2'.sl!ntrmit--L.:: _. - :L:•Y. .. fe- .�.5-- ri. .-...:..... ....� LIuCY _ i� •. 1. �.�z ^y r.M .v:Lt.. . -r • - sz _ _.H: .417:: _.. a.=.F - —:r - : ikB - V — y! }1 liV ? E 'Ce� "' : T .. - iy r ._.r_ » �' S;d'l?'a+ ems�-�k^ - �r '7-1 £..: .=.ss k _.: ... . - " ,T' � .z,: «'i gam.» itg • a:° _ z._ '-::5411.01:3t10 4 . '.W7 c' _ .- n..i ', air ., .Ei:'iih -.a:'r_x;:l'-.r. _.:... ..�... ...r..�':.:. zma �F'.:ai: •�-'F.' c:4,4-,=',.-. ... Mountain Plover Charadrius montanus Description While in Nebraska the mountain plover can be seen in its breeding plumage. It looks C much like a pale version of the more common killdeer, but without chest stripes. The head, back, wings and portions of the upper breast are a pale, sandy brown. The neck and under parts are white. The crown is capped with >- i �:- black, and a black stripe extends from the base of t _ the beak to the eye. The dark bands contrast ,► r z rr sharply with the brilliant white forehead and a 4 throat. The bill is black and the legs are fairly :' . :r . ,_ long and pale brown or brownish-yellow. In it : # . `.ie �° r�_.-,..t.;:..:::;---:-:.„..;,,_•:„i flight, the best field marks are a thin white wing -74 T , k. ,11,i•4 stripe and black tail band fringed with a white IL= #:k_ , ': border. Wintering plumage is pale and the dark A k 1r.T —4----- head bands are absent. Males and females are "' . .. ` ��" ` similar in size and color. Habits Little information describing mountain plover migration is available. Shorebirds are strong flyers and often cover several hundred miles a day. The mountain plover may cover distances of 800 to 1,000 miles on its migration between breeding and wintering areas. Fall flocking begins as early as July,with birds leaving the breeding grounds by CAugust and arriving on the wintering grounds in early rAmt.L � • November. They depart from the wintering grounds in mid- • , 4. ,7 ( March and arrive or. breeding grounds a few days later. When approached, a mountain plover is more likely to crouch or walk away than to fly. If disturbed, a bird may move a few steps then stop abruptly, standing silent and motionless. When forced to fly, it rises rapidly with quick wing beats flying low over the ground. Plovers can be difficult to see because of their cryptic coloration and behavior. Reproduction Mountain plovers arrive on the breeding grounds in small flocks. Males commonly reoccupy their former territories, which they defend against intrusion by other males. Territorial males perform aerial displays to attract a mate, flying to a height of 15 to 30 feet, holding their wings up over the hack in a deep V, then floating hack to the ground in what is called the falling leaf display. A call consisting of a series of"wee-wee-wee" sounds begins at the apex of the flight and continues until the bird reaches the ground. Both sexes perform the falling leaf display, but females perform it only after mating. Females frequently return to the same area each year, but visit the territories of several males before selecting a mate. During courtship, several nest scrapes are made before one is eventually chosen for a nest. The nest consists of a shallow depression in the ground lined with a small amount of materials found nearby. Nests are often next to conspicuous objects such as cow chips. Mountain plovers usually lay three well-camouflaged eggs that are dark olive with black markings. Only one adult attends the nest, rotating the eggs and shading them on hot days during the 29-day incubation. Some evidence suggests that a female produces one clutch of eggs for her mate to attend and then produces a second clutch about two weeks later which she attends. Chicks do not have the same markings as adults. They are whitish below and pale brown above with numerous black spots on the upper head, back and wings. The brown-speckled chicks reach adult size 35 days after hatching. They are still unable to fly, and retain their immature coloration until spring of the following year. Chicks can run and capture their own food soon after hatching. Two to five days after the eggs hatch, adults may move the brood as far as half a mile to a mile and a half, then remain in that area until the chicks are fledged. One of the biggest problems for chicks is exposure to the prairie's hot afternoon sun. Shade is scarce on the prairie, and chicks seek shade under tall vegetation or in the shadows cast by livestock watering tanks, fence posts, telephone poles and adult plovers. Many eggs and chicks do not survive. Eggs are lost primarily to predation and hail damage, while chick mortality is primarily the result of predation. Predators include prairie falcons, ferruginous hawks, golden eagles, loggerhead shrikes, swift foxes and ground squirrels. Food Mountain plovers feed primarily on insects, especially spiders, beetles, grasshoppers, crickets and ants. The type of prey consumed changes throughout the season with beetles most common from late spring to midsummer and grasshoppers and ants eaten in greater quantities in late summer. Like many species that inhabit arid environments, the mountain plover can thrive without drinking free-standing water; sufficient water is obtained from its food. Habitat The mountain plover is generally considered an inhabitant of the arid shortgrass prairie, which is dominated by blue grama and buffalo grass with scattered clumps of cacti and fortis. More recently it has been considered a disturbed-prairie or a semi-desert species. Mountain plovers are very selective in choosing nest sites, preferring expansive, arid flats with very short grass and a high proportion of bare ground. In parts of its breeding range the mountain plover selectively nests in prairie dog towns. Prairie dogs create unique patches of habitat ideal for mountain plovers. In shortgrass prairie, prairie dog grazing promotes the short grasses like buffalo grass and grama grasses, and their digging creates areas of bare soil important for plover nesting. Prairie dog towns also attract many species of insects. Mountain plovers will forage on slopes and ridges. Adults with young have been observed in tall vegetation and around livestock watering facilities, which probably provide an abundance of insects. Adults also use plowed fields. C The wintering habitat of the mountain plover is similar to that used in the summer. Flocks can be found on coastal prairies, alkaline flats, plowed fields and cropland. Western Burrowing Owl (Athene cunicu/aria hypugea) 4 1 ' tt �' { t $ , 0 t ittt N. ,J "1 N. w y, ,c;.,1Yt '`' , ,4 Western Burrowing Owl Photo:Chris Giondahi Description: A small ground-dwelling Owl with a round head and no ear tufts. They have white eyebrows, yellow eyes, and long legs. The Owl is sandy coloured on the head, back, and upperparts of the wings and white-to-cream with barring on the breast and belly and a prominent white chin stripe. They ht ie a rounded head, and yellow eyes with white eyebrows. The young are brown on the head, back, and wings with a white belly and chest. They moult into an adult-like plumage during their first summer. Burrowing Owls are comparatively easy to see because they are often active in daylight, and are surprisingly bold and approachable. The females are usually darker than the males. Size: Length 21.6-28 cm (8.5-11 inches) Wingspan 50.8-61.0 cm (20-24 inches) Weight 170.1-214g (6-7.5 oz) Habits: Burrowing owls generally active at dusk and dawn, but sometimes at night also. They are highly terrestrial, and are often seen perched on a mound of dirt, telegraph or fence post - frequently on one foot. They bob up and down when excited. Flight is with irregular, jerky wingbeats and they will frequently make long glides, interspersed with rapid wingbeats. They hover during hunting and courtship, and may flap their wings asynchronously (not up and down together). Voice: Burrowing Owls are very vocal, and have a wide range of different calls. The main call is given only by adult males, usually when near the burrow to attract a female. A two-syllable "who-who" is given at the entrance of a promising burrow. This call is also associated with breeding, and territory defence. Other sounds called the "rasp", "chuck", "chatter", and "scream" have been described. Juveniles give a rattlesnake-like buzz when threatened in the burrow, and adults give a short, low-level "chuck" call to warn of approaching predators. This is usually accompanied by bobbing the head up and down. Hunting & Food: Burrowing Owls feed on a wide variety of prey, changing food habits as location and time of year determine availability. Large arthropods, mainly beetles and grasshoppers, comprise a large portion of their diet. Small mammals, especially mice, gophers, and ground squirrels, are also important food items. Other prey animals include: reptiles and amphibians, scorpions, young cottontail :.., bats, and birds, such as sparrows and horned larks. These Owls are quite versatile in the ways they capture prey. They chase down grasshoppers and beetles on the ground, use their talons to catch large in the air, or hover in mid-air before swooping down on unsuspecting prey. They also watch from perches, then glide silently toward their target. Burrowing Owls are primarily active at dusk and dawn, but will hunt throughout a 24- hour period, especially when they have young to feed. Unlike other Owls, they also eat fruits and seeds, especially the fruit of Tesajilla and prickly pear cactus. Breeding: The nesting season begins in late March or April. Burrowing Owls are usually monogamous but occasionally a male will have 2 mates. Courtship displays include flashing white markings, cooing, bowing, scratching and nipping. The male performs display flights, rising quickly to 30 meters (100 feet), hovering for 5 to 10 seconds, then dropping 15 meters (50 feet). This sequence is repeated many times. Circling flights also occur. Burrowing Owls nest underground in abandoned burrows dug by mammals or if soil conditions allow they will dig their own burrows. They will also use man made nest boxes placed underground. They often line their nest with an assortment of dry materials. Adults usually return to the same burrow or a nearby area each year. One or more "satellite" burrows can usually be found near the nest burrow, and are used by adult males during the nesting period and by juvenile Owls for a few weeks after they emerge from the nest. 6 to 9 (sometimes up to 12) white eggs are laid a day apart, which are incubated for 28-30 days by the female only. The male brings food to the female during incubation, and stands guard near the burrow by day. The care of the young while still in the nest is performed by the male. At 14 days, the young may be seen roosting at the entrance to the burrow, waiting for the adults to return with food. They leave the nest at about 44 days and begin chasing living insects when 49-56 days old. Mortality: Burrowing Owls are able to live for at least 9 years in the wild and over 10 years in captivity. They are often killed by vehicles when crossing roads, and have many natural enemies, including larger Owls, hawks, falcons, badgers, skunks, • armadillos, snakes, and domestic cats and dogs. They are listed as endangered, threatened, or a species of special concern in most states and provinces where they occur. Habitat: Burrowing Owls are found in open, dry grasslands, and range lands, and desert habitats often associated with burrowing animals, particularly prairie dogs, ; :; ;>,1:r; : 'i:. and badgers. They can also inhabit grass, forb, and shrub stages of pinyon and ponderosa pine habitats. They commonly perch on fence posts or on top of mounds outside the burrow. Burrowing Owls have been reported to nest in loose colonies. Such groupings may be a response to a local abundance of burrows and food, or an adaptation for mutual defence. Colony members can alert each other to the approach of predators and join in driving them off. During the nesting season, adult males forage over a home range of 2 to 3 square kilometres. Ranges of neighbouring males may overlap considerably. A small area around the nest burrow is aggressively defended against intrusions by other Burrowing Owls and predators. Distribution: Burrowing Owls are present in North America, and breed across the grassland regions of southern Alberta, Saskatchewan and Manitobaand. They occur in all states west of the Mississippi Valley, breed south through the western and mid- western States. A separate subspecies is found in Florida and the Carribean Islands. They extend south into Mexico, Central America and South America but populations have declined in many areas due to human-caused habitat loss or alteration. Birds from the northern part of the U.S. and Canada are migratory. I) - `-"N-___ r reedinct , ilk illaIIIIIII r\it) 1 \St \ --3---- ‘ I/1 , IA 1 o 1 ,..,..s. i i__1—,.. - r. , .iiiii ! r f J, 1', Distribution of Athene cunicularialli Status: Uncertain. Locally frequent, but otherwise rare. Original Description: Molina, Giovanni Ignazio [Juan Ignazio]. 1782. Saggio sulla storia naturale del Chile (Saggio Storia Nat. Chile): p. 263. C , ., ....„ , , . fiiii kik/. ., , , ,,. ';""yYty r :,,L-7,,• ? +, , i+-1 + c �� r=�*:..t '.i.c �' s a- *,,,:-?/i-•yyt‘ '�l 't/q�1 + 1 4,:•:,:(1' �+• h�+• �'�„ �� Y, C f '`y> i:t i4 d v. rI1.�,.I i ?.W,1 *,' r` 4. 1 r 4 f t!- ' ��'tt"El`.L^��}'d � � zr1:',t l� ]f � .I li ,S �°r CY is?'r air. +'a `'� �'�` � Y � � � ?,,:e t , r, -n� t ,,r v;�taN` �j Y .: th \.. ✓.k ' tfT,'',.1-''': + ,,f '''�3 t.� :L�n. .',L-: Whooping Crane Status: U.S. Wildlife officials counted 149 whooping cranes in November 1995, the most since the American government began taking censuses in the 1930s. In the late 1800s, there were about 1,500 birds in the aspen parkland and prairie regions of Western Canada and the U.S. As human settlement spread westward, the world population dropped to a low of 14-16 in the 1940s. Conservation efforts since 1938 have resulted in a slow increase. Including those in captivity, and 25 cranes in two other wild populations, there are now 320 whooping cranes in the world. Habitat: In late April, cranes arrive at their breeding area in -,.. r--L Wood Buffalo National Park, which extends into northeast j r Alberta from the N.W.T. By the end of September, the ± whoopers leave for the 4,000 km flight south to the v Aransas National Wildlife Range in Texas. By gliding on \ � wind currents, they can stay aloft for 10 hours and cover 2;, r up to 750 km. Size: Whoopers are the tallest of all birds in North America. An adult male stands 1.5 m tall, weighs as much as 7.5 kg, and has a wingspan up to 2.5 m wide. Despite their size, cranes average a flight speed of about 45 km-h. Food: Cranes eat snails, larval insects, leeches, frogs, minnows, small rodents, and berries. They may scavenge dead ducks, marsh birds or muskrats. During migration, they stop to eat aquatic animals, roots of plants and waste grain in stubble fields. In Texas, they eat shellfish, snakes, acorns, small fish and wild fruit. Breeding: Whooping cranes mate for life. In early spring, adults display elaborate courtship rituals, bobbing, weaving, jumping and calling with their mates. The female lays two large eggs and both adults incubate them for the next month. The eggs hatch at different times and the second chick is often pushed out of the nest or starved. Chicks can swim as soon as they hatch. They can fly within 80- 90 days. Lifespan: Up to 24 years in the wild. � ffk L . Wood Stork HISTORY AND DESCRIPTION: Wood storks are large water birds that stand 2-4 feet tall and weigh 7-10 pounds. They have wingspans as wide as 5 1/2 feet. They are mostly white, but have a black tail and many black feathers under their wings. Storks are related to ibises, herons and flamingos. They have no feathers (ow on their head and neck, so the black skin underneath shows up. This makes wood storks the only tall water birds with black, bald heads. Since they have no muscles attached to their voice box, they are very quiet birds. Every now and then they will croak like a bullfrog, or hiss like a snake. Wood storks have long, skinny legs and a long, curved beak. Storks can glide for a long time on warm wind currents. Sometimes they dive and flip as they soar down from high in the sky. When they do flap their wings, they look awkward and clumsy. Sometimes they fly in flocks with egrets and ibises. Wood storks can cool themselves by urinating (peeing) on their legs. When the sun evaporates the urine, it cools them off, like sweat. They are the only type of stork native to North America. If they are healthy, the wetlands where they live are probably healthy too. HABITAT AND FEEDING: Wood storks are wetland birds. That means that they live near water. They can be found in swamps, marshes, and ponds in the southern United States, and as far south as Argentina in South America. Wood storks are wading birds. That means that they walk along slowly in shallow waters looking for food. They eat small fish, tadpoles, and crayfish. A wood stork hunts for these animals by wading in the water with its bill (beak) open, just under the water's surface. When a fish passes by its open bill, the bird snaps its bill shut, catching some dinner! The Mammals of Texas- Online Edition 0 0 Eastern Spotted Skunk Order Carnivora : Family Mustelidae : Spilogale putorius (Linnaeus) Description. A small, Q ,A.:,:qt.-., ' .1764,14::::...� v: : relatively slender skunk with �:r, �, 1h small white spot on forehead :'_ - • 1&) and another in front of each = :�. ear, the latter often confluent .�,,�� ---• elwith dorsolateral white stripe; ..:..41-;--:.',.. . six distinct white stripes on •:'; f s anterior part of body, the �'� • o..�R,. O ventrolateral pair beginning _ on back of foreleg, the lateral - _ pair at back of ears, the r 0 narrow dorsolateral pair on back of head;posterior part of body with two interrupted white bands;one white spot on each side of rump and two more at base of tail; tail black except for a small terminal tuft of white; rest of body black; ears short and low on side of head; five toes on each foot, the front claws more than twice as long as hind claws, sharp and recurved. Dental formula: I 3/3, C 1/1, Pm 3/3, M 1/2 X 2=34. External measurements average: (males),total length, 515 mm; tail, 210 mm; hind foot, 49 mm; (females), 473-170-43 mm. Males weigh about 680 g; females, about 450 g. Distribution. Occurs in eastern one-half of state east of the Balcones r Escarpment, westward through north-central Texas,to the Panhandle as far south as Garza County. Habits. Spotted skunks are much more active and alert than any of the other skunks. They occur largely in wooded areas and tall-grass prairies, preferring rocky canyons and outcrops when such sites are available. They are less common in the short-grass plains. In areas where common, they have a tendency to live around farmyards and often den under or in buildings. Their den sites are varied. In rocky areas they prefer cracks and crevices in the rocks or a burrow under a large rock. Since they are expert climbers, they occasionally den in hollow trees or in the attics of buildings. In settled communities they frequently live under buildings, in underground tile drains and in underground burrows. They are almost entirely nocturnal and seldom are seen in the daytime. Their food habits are largely beneficial to the agriculturist although they can do considerable damage to poultry if they develop a taste for such food. Their seasonal natural foods consist of: winter—cottontails and corn; spring— native field mice and insects; summer— predominantly insects, with smaller amounts of small mammals, fruits,birds, and birds' eggs; fall— predominantly insects, with small amounts of mice, fruits, and birds. They are excellent rat-catchers and can soon rid a barn of these pests. Mating occurs in March and April. Some females possibly mate again in July and August and produce a second litter.The gestation period is estimated to be 50-65 days, and no known period of delayed implantation exists. The number of young in a litter may range from two to nine, but the usual litter consists of four or five young. At birth the young are blind, helpless, and weigh about 9 g each;the body is covered with fine hair. The black and white markings are distinct. Their eyes open at the age of 30-32 days; they can walk and play when 36 days old; emit musk when 46 days old; and are weaned when about 54 days old. When 3 months old they are almost as large as adults. Sexual maturity is reached at the age of 9-10 months in both sexes. Their enemies, other than man, include dogs, coyotes, foxes, cats, bobcats, and owls. Their defensive behavior consists of a rapid series of handstands, which serve as a warning device to aggressors. If approached too closely, they drop to all fours in a horseshoe-shaped stance, lift their tail, and direct their anus and head toward the potential aggressor. The foul-smelling musk can be accurately discharged for a distance of 4-5 in. Photo credit:John L. Tveten. Texas Garter Snake From Wikipedia, the free encyclopedia Jump to: navigation, search Texas Garter Snake '':i' � I ,171^ 4"i"- !' ''' R ` O 1 , ' , \ `� ' - Texas Garter Snake, Thamnophis sirtalis annectens Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Suborder: Serpentes Family: Colubridae Genus: Thamnophis Species: T. sirtalis C Subspecies: T. w annectens Trinomial name Thamnophis sirtalis annectens Brown, 1950 The Texas Garter Snake (Thamnophis sirtalis annectens) is a subspecies of the common garter snake(T. sirtalis) from the United States. It is found predominantly in eastern and central Texas, with a disjunct population in Kansas. They are a terrestrial species, generally found in dry, lightly wooded areas. Completely harmless, and members of the colubrid family, they are easily mistaken for other garter snake species. They have a greenish-black back with a distinctive bright orange or red stripe down the center and yellowish stripes on either side of the body. They are generally not aggressive, and if handled will often flail about wildly to try to escape and release a foul-smelling musk from their cloaca. [edit] References Species Thamnophis sirtalis at The Reptile Database C TEXAS PARKS AND WILDLIFE Printer friendly Home I Contact Us Nature>Wild>Reptiles>Horned Lizard>Texas Horned Lizard • TPWD photo©2003 Texas Horned Lizard Phrynosoma cornutum Description The Texas Horned Lizard or"horny toad"is a flat-bodied and fierce-looking lizard. The head has numerous horns, all of which are prominent,with two central head spines being much longer than any of the others. This lizard is brownish with two rows of fringed scales along each side of the body. On most Texas Horned Lizards, a light line can be seen extending from its head down the middle of its back. It is the only species of horned lizard to have dark brown stripes that radiate downward from the eyes and across the top of the head. Life History The Texas Horned Lizard's intimidating exterior is quite opposite from its docile and gentle nature.They spend their days eating, sunbathing and eluding predators. Their activities are based on an internal biological clock. They emerge from their burrows shortly before sunrise and,with their backs toward the sun,they bask to bring about a fast rise in body temperature. Once properly warmed, they remain active until the time comes to retreat into shaded areas to avoid the most intense heat of the day. . . r �, , . x..w'S t h . 1 )t . 4. + may. . t- r l t' TPWD photo©2003 Horned lizards have a unique repertoir of defense.When threatened, their first reaction is to flatten out and freeze in place. This enable the horned lizard to blend in with the ground as well as reduce the casting of a body shadow. Unfortunately, many horned lizards are killed because they bask on roadways and simply to not move when a car approaches.Another defensive reaction is to run briefly then suddenly stop, seemingly creating the illusion of disappearance.When disturbed or in an extremely agitated state, the Texas Horned Lizard also is capable of inflating its body, hissing, and even squirting blood from its eyes in order to deter predators. Horned lizards are ant specialists and Texas Horned Lizards, in particular, eat a large number of harvester ants. Hibernation begins in September or October,and continues until late April or May. Mating occurs soon after emergence. After a receptive female and male mate,the gravid female will carry the eggs for a period of time as they develop. Once a nest site is chosen, she will dig a slanted tunnel and lay 13 to 45 eggs in two to three soil packed layers. After burying the eggs, she may sit on the entrance tunnel for one night, but then she leaves, never to return to the eggs again. Some five to nine weeks later, the baby lizards will hatch and fight their way out of the egg with a specialized"egg tooth." Habitat and Distribution Texas Horned Lizards range from the South-Central United States to Northern Mexico. They can be found in arid and semiarid habitats in open areas with sparce plant cover throughout much of Texas, Oklahoma, Kansas and New Mexico. As horned lizards dig for hibernation, nesting and insulation purposes, they commonly are found in loose sand or loamy soils. The Texas Horned Lizard currently is listed as a threatened species in Texas(federal category C2). Additional Information: Snakes of Georgia and South Carolina -Photos by J.D.Willson unless otherwise noted r_ i . ' t e.. t _ Kt v ;. �,• �► Canebrake/Tim Ork; ' 4. - t - her Rattlesnake ' , ' . - _:, • Il Crotalus horridus . �" " 3; I Z:4. ,fie vi <4\14:11:::41 I' Description: Timber rattlesnakes, which are called canebrake rattlesnake in the Coastal Plain i +' ' �, '. n ,;„ ' rpt x of the Southeast, are large, heavy bodied snakes e4,f� , �, , ' --'�.* - ' -. , with the characteristic rattles on the end of the � �, -�- , .' tail. Adults range from 30-60 in (76-152 cm) �.. ,� with the record being more than 6 feet (183 cm) . �`��'" ', long. Canebrakes are usually gray and may '''-'7,44317. . t ,' even have a pink hue and a pinkish,yellow, .; 4" •. '. orange, or brown stripe running the length of -•.l - , ''! r rattlers are typically more • • '" '.-. the back. TimberYp Y ,-- . .4 7" r` 1,. « , brown or yellowish and may even be black. 'a .� . ' ...0.417-,, Both forms have solid black tails that appear .' r � ;� almost velvet and black chevrons on the back and sides with the point of the (V)pointing " ; forward. The babies are miniatures of the adults ' but are usually a lighter gray and have only a `, ,. single button (rattle) on the tip of the tail at birth. Males get larger than females. •Range and Habitat: Timber and canebrake rattlesnakes have a wide distribution in the ~+�► Cr. ;, „ eastern United States but the species is absent t a from most of Florida. This snake occurs in a wide variety of terrestrial habitat including t " lowland cane thickets, high areas around swamps and river floodplains, hardwood and 04 pine forests, mountainous areas, and rural lid ' F' habitats in farming areas. They typically �� `' # ,�+ become reduced in numbers in highly urbanized � or areas of housing development. •' �� '� Yr. %�;�"� t Habits: Timber and canebrake rattlesnakes � ± «� ;: ,` .� , y. become active above ground by late spring and _.,� , • - 4 w can be seen periodically until the onset of cold - w . weather in late fall. Canebrakes are active "' "�=-�"" • ;.... during both day and night but spend the majority of their time coiled in ambush -- « . •'.** r .;rte , positions ready to capture prey. These rattlesnakes hibernate during cold weather. Timber rattlers congregate in dens in mountainous areas whereas canebrakes often overwinter alone in stump holes or beneath ground cover. They eat mostly small rodents when young, and large individuals kill and eat squirrels and rabbits. Females usually do not reach maturity until at least 5 years old and typically wait at least 2 or 3 years between litters. The live young are born in late summer or early fall around the time that courtship and mating occurs. Large male canebrake rattlesnakes are often seen in late summer or early fall in search of mates. Although reaching large sizes, most individuals are docile when encountered in the wild and often will remain coiled or stretched out without moving. If threatened, however, they will not hesitate to deliver a serious bite. Conservation status: Timber and canebrake rattlesnakes are not protected in the southern states and the species is not considered to be in serious danger, but populations are steadily decreasing over the geographic range, primarily due to habitat destruction and other human activities. In some areas of the northeast timber rattlesnakes have declined dramatically and they are protected in several northern states. Road construction that crosses the migratory range of this species also posses a threat as some individuals move long distances and commonly become road kill. Additionally, communal denning of timber rattlesnakes makes them particularly vulnerable to persecution by humans. Pertinent References: Andrews, K. M. and J. W. Gibbons. 2005. How do highways influence snake movement? Behavioral responses to roads and vehicles. Copeia 2005: 771-781. Gibbons, J. W. 1972. Reproduction, growth and sexual dimorphism in the canebrake rattlesnake (Crotalus horridus atricaudatus). Copeia 1972: 222-226 Account author: Rebecca Taylor edited by J. W. Gibbons Lanius ludovicianus migrans Migrant loggerhead shrike 1, ' , . -, ., ! r ' 4 ‘, .. it„ _ t, ...... . ... . , i ,...., k4•44,.ti.�i. 1 \ % `Try • 1 �` w . .. :. '� rte'- �� Key Characteristics The Loggerhead shrike is a grayish, robin-sized bird, averaging 8 to 10 inches (20-25 cm) in length with a wingspan of about 13 inches (33 cm). The head and back are bluish-gray, and the breast and belly are white and faintly barred . A broad black mask extends across and slightly above the eyes and above the top of the slightly hooked black bill. The wings are dark with large white wing patches. The tail also is dark with white along the edges. This bird is usually quiet, but may be heard repeating short calls that include a harsh "shack-shack" and "queedle-queedle". Status and Rank • State Status: E - Endangered (legally protected) • State Rank: S1 - Critically imperiled • Global Rank: G4T3Q Occurrences County Name Number of Occurrences Year Last Observed Allegan 1 1991 Alpena 2 1981 Benzie 2 1990 Chippewa 1 1984 Clare 1 1981 Emmet 1 1981 Grand Traverse 1 1987 Huron 1 1987 Manistee 1 1992 Missaukee 1 1981 Oceana 1 1986 Osceola 1 1981 Presque Isle 1 1979 County Occurrences of Lanius ludovicianus migrans 1111104110 Firipigr. IIre! ■ r ®Occurrence ;��1.himusordis Updated 11/27/2012. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed. Habitat Loggerhead shrike habitat consists of grasslands and open, agricultural areas characterized by short vegetation and scattered trees, shrubs or hedgerows for nesting cover and hunting and lookout perches. This species typically prefers pastures,old fields and orchards, roadside fencerows, and native prairies and grasslands. This bird also utilizes riparian areas and open woodlands as well as agricultural fields with row crops(e.g., corn, soybeans, etc.), mowed roadsides, parks, cemeteries and golf courses. Natural Community Types • Oak barrens • Oak-pine barrens • Dry-mesic prairie • Mesic prairie • Wooded dune and swale complex • Southern shrub-carr • Bur oak plains • Lakeplain oak openings • Dry sand prairie • Mesic sand prairie Management Preserve open grasslands, prairies, pastures and farmland and prevent vegetation succession and conversion to other land uses (e.g.,urban development), particularly in areas that have had recent breeding activity. Loggerhead shrikes may be vulnerable to the impacts of pesticides given the predatory nature of this bird and its close association with agricultural areas, however, many persistent, highly toxic pesticides have not been widely used since the 1970's, and yet the population has continued to decline. The effects of pesticides may be indirect in that prey populations are lowered. Habitat management for Loggerhead shrikes should focus on providing suitable nest trees and perches and maintaining a healthy prey population. Suitable habitat can be expanded by planting appropriate nest trees and shrubs(e.g., Eastern red cedar,osage orange, apple and low pines and spruces) in fence rows next to existing pastures and other grassy areas. Maintenance of short vegetation in breeding and foraging habitat, such as pastures and grassland habitat, can be achieved by grazing, mowing and/or prescribed burning. Burning should be frequent enough to help prevent succession and encroachment of woody vegetation but maintain scattered trees and shrubs. Burning should also be done outside of the breeding season. Crop rotation that includes fields with short vegetation also can be used as a management tool to maintain foraging habitat near appropriate nesting habitat at all times. Active Period Migration from third week of March to third week of April Nesting from third week of April to fourth week of July Migration from third week of August to fourth week of October Survey Methods The best way to survey for these birds is by visually observing birds active around known nest sites and suitable habitat where they may be seen foraging or perched on treetops,branches, utility lines and poles, and fence posts. • Visual observation during nesting o Survey Period: From third week of April to fourth week of June • Time: Morning(after sunrise) faHILL &WILKINSON GENERAL CONTRACTORS 2703 TELECOM PARKWAY/SUITE 120/ RICHARDSON, TEXAS 75082 214.299.4300 PHONE/ 214.299.4444 FAX February 19, 2014 To Whom It May Concern: RE: Historic Properties E-Care Emergency Center 330 S. Denton Tap Road Coppell, Texas; Dallas County 75019 Dear Sirs In order to be eligible for coverage under the Texas Pollutant Discharge Elimination System (TPDES) Construction General Permit(CGP), SCMOB 330 S Denton Tap, LLC to be in compliance with the National Historic Preservation Act. A discharge of storm water associated with construction activity may be covered under the GCP only if: 1. The discharge does not affect a property that is listed or is eligible for listing in the National Historic Register maintained by the Security of the Interior or 2. The applicant has obtained and is in compliance with a written agreement between the applicant and the State Historic Preservation Officer(SHPO) that outlines all measures to be undertaken by the applicant to mitigate or prevent adverse affects to the historic property. A review of the National Registry of Historic Sites list maintained by the Department of the Interior showed that no Historic Sites are currently listed in the project location's region for Dallas County, Texas Based on the location of the project site, the storm water runoff from this site is not likely to adversely impact any Historic Sites. If in the future an impact to a historic property were identified, the appropriate best management practices should be implemented to minimize or eliminate impacts and the Texas Historical Commission should be notified. Please reference this letter for compliance with the National Historic Preservation Act. I 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 SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWING VIOLATIONS. Sincerely, HILL &WILKINSON CONSTRUCTION GROUP, LTD. Paul Driscoll Chief Executive Officer • PD/trh www.hill-wilkin son.com TEXAS - Dallas County - Historic Districts s- Alcalde Street--Crockett School Historic District (added 1995 - Dallas County -#95000330) 200--500 Alcalde, 421--421A N. Carroll and 4315 Victor, Dallas (110 acres, 16 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Bulger,C.W. Architectural Style:Queen Anne,Bungalow/Craftsman, Colonial Revival Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 Owner:Local,Private Historic Function:Domestic,Education Historic Sub-function:School,Single Dwelling Current Function:Domestic,Education Current Sub-function:School,Single Dwelling erx� Bryan--Peak Commercial Historic District (added 1995 - Dallas County - #95000327) 4214--4311 Bryan Ave. and 1325--1408 N. Peak , Dallas (50 acres, 11 buildings) Historic Significance:Event,Architecture/Engineering Area of Significance:Architecture,Commerce Period of Significance:1925-1949, 1900-1924 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 Cedar Springs Place (added 1991 - Dallas County - #91001901) 2531 Lucas Dr. , Dallas (125 acres, 28 buildings) Historic Significance:Event,Architecture/Engineering Architect,builder,or engineer:Centennial Architects,Sharp,Walter Architectural Style:International Style Area of Significance:Community Planning And Development,Social History, Architecture Period of Significance:1925-1949 Owner:Local Historic Function:Domestic Historic Sub-function:Institutional Housing Current Function:Domestic Current Sub-function:Institutional Housing TEXAS - Dallas County - Historic Districts Colonial Hill Historic District (added 1995 - Dallas County-#95000334) Bounded by Pennsylvania Ave., I-45, US 75 and Hatcher, Dallas (1500 acres, 353 buildings) Historic Significance:Event,Architecture/Engineering Architectural Style:Bungalow/Craftsman,Classical Revival Area of Significance:Architecture,Community Planning And Development Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Commerce/Trade,Domestic Historic Sub-function:Business,Single Dwelling Current Function:Commerce/Trade,Domestic Current Sub-function:Business,Single Dwelling Dallas Downtown Historic District (added 2006 - Dallas County -#04000894) Roughly bounded by Federal,N. St. Paul, Pacific, Harwood, S. Pearl, Commerce, S Ervay, Akard, Commerce and Field , Dallas (555 acres, 67 buildings) Historic Significance:Event,Architecture/Engineering Architect,builder,or engineer:et.al.,Ahlschlager,Walter Architectural Style:Late 19th And 20th Century Revivals,Late Victorian Area of Significance:Commerce,Community Planning And Development,Architecture Period of Significance:1950-1974, 1925-1949, 1900-1924, 1875-1899 Owner:Local,Private 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 rari Dallas Downtown Historic District(Boundary Increase) (added 2009 - Dallas County -#08001299) Bounded by Jackson,North Hardwood Commerce, N.-S. line between S. Pearl Exwy., and S. Hardwood Canton , Dallas (353 acres, 22 buildings, 1 structure) Historic Significance:Architecture/Engineering,Event Architect,builder,or engineer:et al.,Ahlschlager,Walter Architectural Style:Late 19th And Early 20th Century TEXAS - Dallas County - Historic Districts American Movements,Modern Movement Area of Significance:Commerce,Architecture Period of Significance:1950-1974, 1925-1949, 1900-1924 Owner:Private,Local Historic Function:Commerce/Trade,Government, Industry/Processing/Extraction, Religion,Social Historic Sub-function:Business,Government Office, Manufacturing Facility,Meeting Hall,Organizational,Religious Structure,Specialty Store Current Function:Commerce/Trade,Government, Industry/Processing/Extraction, Religion,Social,Vacant/Not In Use Current Sub-function:Business,Energy Facility, Government Office,Meeting Hall, Organizational,Religious Structure, Warehouse Dallas High School Historic District (added 1996 - Dallas County -#96000035) Also known as Dallas Technical High School;Norman Robert Crozier Technical 2218 Bryan St. , Dallas (54 acres, 5 buildings) • Historic Significance:Event Area of Significance:Education Period of Significance:1950-1974, 1925-1949, 1900-1924 Owner:Local Historic Function:Education Historic Sub-function:School Current Function:Vacant/Not In Use Dealey Plaza Historic District (added 1993 - Dallas County - #93001607) Roughly bounded by Pacific Ave., Market St., Jackson St. and right of way of Dallas Right of Way Management Company, Dallas (150 acres, 8 buildings, 5 structures, 2 objects) Historic Significance:Event,Person, Architecture/Engineering Architect,builder,or engineer:Multiple Architectural Style:Romanesque,Chicago,Early Commercial Historic Person:Kennedy,John F.,et al. Significant Year:1963 Area of Significance:Architecture,Landscape Architecture,Politics/Government Period of Significance:1950-1974, 1925-1949, 1900-1924, 1875-1899 Owner:Mixed Historic Function:Domestic,Government,Landscape Historic Sub-function:Government Office,Plaza,Single TEXAS - Dallas County - Historic Districts Dwelling Current Function:Domestic,Government,Landscape Current Sub-function:Government Office,Plaza,Single Dwelling Greenway Parks Historic District (added 2008 - Dallas County -#07001383) Bounded by W. Mockingbird Ln., W. University Blvd. Inwood&N. Dallas Tollway. , Dallas (1500 acres, 215 buildings, 1 structure, 5 objects) Historic Significance:Event,Architecture/Engineering Architect,builder,or engineer:Allen,George,et.al. Architectural Style:Modern Movement,Late 19th And 20th Century Revivals Area of Significance:Architecture,Community Planning And Development Period of Significance:1950-1974, 1925-1949 Owner:Private Historic Function:Domestic,Landscape Historic Sub-function:Park,Single Dwelling Current Function:Domestic,Landscape Current Sub-function:Park,Single Dwelling , : Gulf Oil Distribution Facility (added 2010 -Dallas County-#10000144) Also known as Hickory Street Annex 501 Second Ave, Dallas (9 acres, 6 buildings) Historic Significance:Event Area of Significance:Industry Period of Significance:1950-1974, 1925-1949, 1900-1924 Owner:Private Historic Function:Industry/Processing/Extraction Current Function:Commerce/Trade Current Sub-function:Business Kessler Park Historic District (added 1994- Dallas County-#94000607) Roughly bounded by Kidd Springs, Stewart, Oak Cliff, Plymouth, I-30, Turner, Colorado and Sylvan, Dallas (2750 acres, 410 buildings, 2 structures) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Bungalow/Craftsman,Tudor Revival,Mission/Spanish Revival Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Domestic,Landscape Historic Sub-function:Park,Single Dwelling Current Function:Domestic,Landscape Current Sub-function:Park,Single Dwelling TEXAS - Dallas County - Historic Districts Kessler Park Historic District(Boundary Increase) �c~M (added 1995 - Dallas County -#95001087) Bounded by Turner, Colorado, Sylvan and Salmon , Dallas (100 acres, 12 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Bungalow/Craftsman,Tudor Revival,Mission/Spanish Revival 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 - Dallas County -#94000606) 900--1500 Blocks of King's Highway between W. Davis St. and Montclair Ave. , Dallas (300 acres, 65 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Other,Bungalow/Craftsman Area of Significance:Architecture IOW Period of Significance:1925-1949, 1900-1924 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 Iral Lake Cliff Historic District (added 1994 - Dallas County - #94000609) Roughly bounded by E. 6th St., Beckley Ave., Zangs Blvd. and Marsalis Ave. , Dallas (750 acres, 49 buildings, 1 structure) Historic Significance:Architecture/Engineering,Event Architect,builder,or engineer:Williams,Robert C.,Hecht,Albert S. Architectural Style:Other,Late 19th And 20th Century Revivals,Late 19th And Early 20th Century American Movements Area of Significance:Community Planning And Development,Architecture Period of Significance:1925-1949, 1900-1924, 1875-1899 Owner:Private Historic Function:Domestic,Landscape Historic Sub-function:Multiple Dwelling,Park,Single Dwelling Current Function:Domestic,Landscape TEXAS - Dallas County - Historic Districts Current Sub-function:Multiple Dwelling,Park,Single Dwelling E.-!as-m-. Lancaster Avenue Commercial Historic District (added 1994 - Dallas County -#94000605) Roughly bounded by E. Jefferson Blvd., S. Marsalis, E. ` t St., E. 9th St. and N. Lancaster Ave. , Dallas (50 acres, 12 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Other Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Commerce/Trade Historic Sub-function:Specialty Store Current Function:Commerce/Trade Current Sub-function:Specialty Store Lawrence, Stephen Decatur, Farmstead (added 1999 - Dallas County- #99001139) Also known as Opal Lawrence Historical Park 701 E. Kearney St. , Mesquite (137 acres, 17 buildings, 4 structures) Historic Significance:Architecture/Engineering,Event Architect,builder,or engineer:Florrer,Charley Architectural Style:Other Area of Significance:Architecture,Agriculture Period of Significance:1925-1949, 1900-1924, 1875-1899 Owner:Local Historic Function:Agriculture/Subsistence,Domestic Historic Sub-function:Agricultural Outbuildings,Single Dwelling Current Function:Recreation And Culture Current Sub-function:Museum TEXAS - Dallas County - Historic Districts Roughly bounded by W. Davis St., Woodlawn Ave.,Neches and Elsbeth , Dallas (1240 acres, 243 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Other,Bungalow/Craftsman Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 j o Owner:Private Historic Function:Domestic Historic Sub-function:Multiple Dwelling,Single Dwelling Current Function:Domestic Current Sub-function:Multiple Dwelling,Single Dwelling Ill Munger Place Historic District (added 1978 - Dallas County -#78002916) Roughly bounded by Henderson, Junius, Prairie, and Reiger Sts. , Dallas (850 acres, 207 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Multiple Architectural Style:Other,Classical Revival,Prairie School Area of Significance:Architecture,Landscape Architecture,Community Planning And Development Period of Significance:1900-1924 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling !WM] North Bishop Avenue Commercial Historic District (added 1994 - Dallas County -#94000608) tit Roughly bounded by 9th St., Davis St., Adams and Madison , Ir Dallas (120 acres, 15 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Other Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Commerce/Trade,Domestic Historic Sub-function:Single Dwelling,Specialty Store Current Function:Commerce/Trade,Domestic Current Sub-function:Single Dwelling,Specialty Store Peak's Suburban Addition Historic District (added 1995 - Dallas County -#95000328) Also known as See Also:Grace Methodist Episcopal Church;Viola Courts Apart TEXAS - Dallas County - Historic Districts Roughly bounded by Sycamore, Peak, Worth and Fitzhugh , Dallas (1400 acres, 244 buildings) Historic Significance:Architecture/Engineering Architectural Style:Classical Revival, Bungalow/Craftsman,Queen Anne Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924, 1875-1899 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling =t- Queen City Heights Historic District (added 1995 - Dallas County - #95000332) Roughly bounded by Eugene, Cooper, Latimer, Kynard and Dildock, Dallas (250 acres, 47 buildings) Historic Significance:Architecture/Engineering,Event Architectural Style:Bungalow/Craftsman Area of Significance:Black,Community Planning And Development,Architecture Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Commerce/Trade,Domestic Historic Sub-function:Department Store,Single Dwelling Current Function:Commerce/Trade,Domestic Current Sub-function:Financial Institution,Single Dwelling Romine Avenue Historic District (added 1995 - Dallas County -#95000333) 2300--2400 blocks of Romine Ave., N side , Dallas (40 acres, 14 buildings) Historic Significance:Event,Architecture/Engineering Architect,builder,or engineer:McElveen&Sowell,McElveen, Daniel Architectural Style:Tudor Revival Area of Significance:Architecture,Community Planning And Development,Black Period of Significance:1925-1949 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling Rosemont Crest Historic District (added 1994 - Dallas County -#94000610) Roughly bounded by 10th St., Oak Cliff Blvd., W. Davis St., N. Brighton Ave., W. 8th St. and Rosemont Ave. , Dallas (330 acres, 74 buildings) TEXAS - Dallas County- Historic Districts Historic Significance:Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Bungalow/Craftsman,Other Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Commerce/Trade,Domestic Historic Sub-function:Single Dwelling,Specialty Store Current Function:Commerce/Trade,Domestic Current Sub-function:Single Dwelling,Specialty Store South Boulevard-Park Row Historic District (added 1979 - Dallas County - #79002930) South Blvd. and Park Row from Central , Dallas (460 acres, 116 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Multiple Architectural Style:Mission/Spanish Revival,Prairie School,Bungalow/Craftsman Area of Significance:Architecture Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling Strain Farm--Strain, W.A., House(Boundary Increase) (added 2001 - Dallas County - #01001002) Also known as W.A. Strain House 400 Lancaster-Hutchins Rd. , Lancaster (1630 acres, 1 building, 2 structures) Historic Significance:Event Area of Significance:Architecture,Conservation Period of Significance:1950-1974, 1925-1949, 1900-1924, 1875-1899 Owner:Private Historic Function:Agriculture/Subsistence,Domestic Historic Sub-function:Agricultural Fields,Agricultural Outbuildings,Secondary Structure Current Function:Agriculture/Subsistence,Domestic Current Sub-function:Agricultural Fields,Agricultural Outbuildings,Secondary Structure L_ Swiss Avenue Historic District (added 1974 - Dallas County - #74002068) Swiss Ave. between Fitzhugh and LaVista , Dallas (571 acres, 21 buildings) Historic Significance:Architecture/Engineering Architect,builder,or engineer:Multiple Architectural Style:Late 19th And 20th Century Revivals,Colonial Revival,Prairie School Area of Significance:Architecture,Landscape TEXAS - Dallas County - Historic Districts Architecture,Community Planning And Development Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling Tenth Street Historic District (added 1994 - Dallas County-#94000604) Roughly bounded by E. Clarendon Dr., S. Fleming Ave., I- 35E, E. 8th St. and the E end of Church, E. 9th and Plum Sts. , Dallas (850 acres, 209 buildings) Historic Significance:Event Area of Significance:Black Period of Significance:1925-1949, 1900-1924, 1875-1899 Owner:Private Historic Function:Commerce/Trade,Domestic, Funerary Historic Sub-function:Cemetery,Multiple Dwelling,Single Dwelling,Specialty Store Current Function:Commerce/Trade,Domestic, Funerary Current Sub-function:Cemetery,Multiple Dwelling,Single Dwelling,Specialty Store Texas Centennial Exposition Buildings (1936--1937) (added 1986 - Dallas County - #86003488) Also known as Fair Park;Site of Texas State Fairs 1886- date Bounded by Texas and Pacific RR, Pennsylvania, Second, and Parry Ayes. , Dallas (2770 acres, 21 buildings, 10 structures, 1 object) Historic Significance:Event Area of Significance:Entertainment/Recreation Period of Significance:1925-1949 Owner:Local Historic Function:Recreation And Culture Historic Sub-function:Fair,Museum,Sport Facility Current Function:Recreation And Culture Current Sub-function:Fair,Museum, Sport Facility Westend Historic District (added 1978 - Dallas County -#78002918) Also known as See Also:Sanger Brothers Complex;Dallas County Courthouse Bounded by Lamar, Griffin, Wood, Market, and Commerce Sts. , Dallas (675 acres, 52 buildings) Historic Significance:Event,Architecture/Engineering Architect,builder,or engineer:Multiple TEXAS - Dallas County - Historic Districts Architectural Style:Romanesque,Late 19th And Early 20th Century American Movements, Chicago Area of Significance:Politics/Government,Transportation, Architecture,Commerce,Landscape Architecture,Community Planning And Development,Industry,Social History Period of Significance:1950-1974, 1925-1949, 1900-1924, 1875-1899 Owner:Local,Private Historic Function:Commerce/Trade,Government, Industry/Processing/Extraction, Recreation And Culture Historic Sub-function:Business,Financial Institution, Museum,Restaurant,Specialty Store Current Function:Commerce/Trade,Government, Industry/Processing/Extraction, Recreation And Culture Current Sub-function:Business,Financial Institution, Museum,Restaurant,Specialty Store =` Wheatley Place Historic District (added 1995 - Dallas County -#95000331) Bounded by Warren, Atlanta, McDermott, Meadow, Oakland and Dathe , Dallas (980 acres, 373 buildings) Historic Significance:Architecture/Engineering,Event Architectural Style:Bungalow/Craftsman Area of Significance:Black,Architecture,Community Planning And Development Period of Significance:1925-1949, 1900-1924 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling _ Wilson Block (added 1978 - Dallas County - #78002919) 2902, 2906, 2910 and 2922 Swiss Ave. , Dallas (20 acres, 6 buildings) Historic Significance:Person,Architecture/Engineering Architect,builder,or engineer:Unknown Architectural Style:Queen Anne Historic Person:Wilson,Frederick P. Significant Year:1899, 1902 0 Area of Significance:Architecture,Social History Period of Significance:1900-1924, 1875-1899 Owner:Private Historic Function:Domestic Historic Sub-function:Single Dwelling Current Function:Domestic Current Sub-function:Single Dwelling TEXAS - Dallas County - Historic Districts tAti Winnetka Heights Historic District (added 1983 - Dallas County- #83003758) Roughly bounded by Davis and 12th Sts., and Rosemont and Willomet Ayes. , Dallas (1640 acres, 580 buildings) Historic Significance:Architecture/Engineering,Event Architect,builder,or engineer:Unknown Architectural Style:Bungalow/Craftsman,Prairie School Area of Significance:Architecture,Community Planning And Development Period of Significance:1900-1924 Owner:Local,Private Historic Function:Commerce/Trade,Domestic Historic Sub-function:Single Dwelling Current Function:Commerce/Trade,Domestic Current Sub-function:Single Dwelling NATIONAL HISTORIC LANDMARKS SURVEY NATIONAL PARK SERVICE 1849 C Street, N.W. Room NC-400 Washington, DC 20240 LISTING OF NATIONAL HISTORIC LANDMARKS BY STATE TEXAS (46) ALAMO 12/19/60 SAN ANTONIO,BEXAR COUNTY,TEXAS APOLLO MISSION CONTROL CENTER 10/03/85 HOUSTON, HARRIS COUNTY,TEXAS BASTROP STATE PARK 09/25/97 BASTROP,BASTROP COUNTY,TEXAS CABOT(USS) DEDESIGNATED 07/08/01 06/29/90 PORT ISABEL, CAMERON COUNTY,TEXAS DEALY PLAZA HISTORIC DISTRICT 10/12/93 DALLAS,DALLAS COUNTY,TEXAS EAST END HISTORIC DISTRICT 05/11/76 GALVESTON,GALVESTON COUNTY,TEXAS ELISSA(Bark) 12/14/90 GALVESTON,GALVESTON COUNTY,TEXAS ESPADA AQUEDUCT 07/19/64 SAN ANTONIO,BEXAR COUNTY,TEXAS FAIR PARK TEXAS CENTENNIAL BUILDINGS 09/24/86 DALLAS, DALLAS COUNTY,TEXAS FORT BELKNAP 12/19/60 YOUNG COUNTY,TEXAS FORT BROWN 12/19/60 BROWNSVILLE,CAMERON COUNTY,TEXAS FORT CONCHO 07/04/61 SAN ANGELO,TOM GREEN COUNTY,TEXAS FORT DAVIS 12/19/60 JEFF DAVIS COUNTY,TEXAS FORT RICHARDSON 11/27/63 JACK COUNTY,TEXAS FORT SAM HOUSTON 05/15/75 SAN ANTONIO, BEXAR COUNTY,TEXAS GARNER, JOHN NANCE, HOUSE 12/08/76 UVALDE, UVALDE COUNTY,TEXAS GOVERNOR'S MANSION 12/02/74 AUSTIN,TRAVIS COUNTY,TEXAS HA. 19(Midget Submarine) 06/30/89 FREDERICKSBURG,GILLESPIE COUNTY,TEXAS HANGAR 9, BROOKS AIR FORCE BASE 12/08/76 SAN ANTONIO,BEXAR COUNTY,TEXAS HARRELL SITE 07/19/64 YOUNG COUNTY,TEXAS HIGHLAND PARK SHOPPING VILLAGE 02/16/00 HIGHLAND PARK,DALLAS COUNTY,TEXAS J A RANCH 12/19/60 ARMSTRONG COUNTY,TEXAS JOHNSON, LYNDON BAINES, BOYHOOD HOME 05/23/66 JOHNSON CITY,BLANCO COUNTY,TEXAS KING RANCH 11/05/61 KENEDY,KLEBERG, NUECES&WILLACY COUNTIES,TEXAS LANDERGIN MESA 07/19/64 OLDHAM COUNTY,TEXAS LEXINGTON(USS) 07/31/03 CORPUS CHRISTI, NUECES COUNTY,TEXAS LUBBOCK LAKE SITE 12/22/77 LUBBOCK,LUBBOCK COUNTY,TEXAS LUCAS GUSHER, SPINDLETOP OIL FIELD 11/13/66 JEFFERSON COUNTY,TEXAS MAJESTIC THEATRE 04/19/93 SAN ANTONIO, BEXAR COUNTY,TEXAS MISSION CONCEPCION 04/15/70 SAN ANTONIO, BEXAR COUNTY,TEXAS PALMITO RANCH BATTLEFIELD 09/25/97 CAMERON COUNTY,TEXAS PALO ALTO BATTLEFIELD 12/19/60 CAMERON COUNTY,TEXAS PLAINVIEW SITE 01/20/61 PLAINVIEW,HALE COUNTY,TEXAS PORTER FARM 07/19/64 KAUFMAN COUNTY,TEXAS PRESIDIO NUESTRA SENORA DE LORETO DE LA BAHIA 12/24/67 GOLIAD COUNTY,TEXAS RANDOLPH FIELD HISTORIC DISTRICT 08/07/01 BEXAR COUNTY,TEXAS RAYBURN, SAMUEL T., HOUSE 05/11/76 BONHAM,FANIN COUNTY,TEXAS RESACA DE LA PALMA BATTLEFIELD 12/19/60 CAMERON COUNTY,TEXAS ROMA HISTORIC DISTRICT 11/04/93 ROMA,STARR COUNTY,TEXAS SAN JACINTO BATTLEFIELD 12/19/60 HARRIS COUNTY,TEXAS SPACE ENVIRONMENT SIMULATION LABORATORY, CHAMBERS A AND B 10/03/85 HOUSTON, HARRIS COUNTY,TEXAS SPANISH GOVERNOR'S PALACE 04/15/70 SAN ANTONIO, BEXAR COUNTY,TEXAS STRAND HISTORIC DISTRICT 05/11/76 GALVESTON,GALVESTON COUNTY,TEXAS TEXAS(USS) 12/08/76 HARRIS COUNTY,TEXAS TEXAS STATE CAPITOL 06/23/86 AUSTIN,TRAVIS COUNTY,TEXAS TREVINO-URIBE RANCHO 08/05/98 SAN YGNACIO,ZAPATA COUNTY,TEXAS WOODLAND 05/30/74 HUNTSVILLE,WALKER COUNTY,TEXAS APPENDIX A The numerous designations within the National Park System sometime confuse visitors. The names are created in the Congressional legislation authorizing the sites or by the president, who proclaims"national monuments" under the Antiquities Act of 1906. Many names are descriptive --lakeshores, seashores, battlefields --but others cannot be neatly categorized because of the diversity of resources within them. In 1970, Congress elaborated on the 1916 National Park Service Organic Act, saying all units of the system have equal legal standing in a national system. National Park [NP] These are generally large natural places having a wide variety of attributes, at times including significant historic assets. Hunting, mining and consumptive activities are not authorized. National Monument [NM] The Antiquities Act of 1906 authorized the President to declare by public proclamation landmarks, structures, and other objects of historic or scientific interest situated on lands owned or controlled by the government to be national monuments. National Historic Site [NHS] Usually, a national historic site contains a single historical feature that was directly associated with its subject. Derived from the Historic Sites Act of 1935, a number of historic sites were established by secretaries of the Interior, but most have been authorized by acts of Congress. National Historic Park [NHP] This designation generally applies to historic parks that extend beyond single properties or buildings. National Memorial [NMem] A national memorial is commemorative of a historic person or episode; it need not occupy a site historically connected with its subject. National Battlefield [NB] This general title includes national battlefield, national battlefield park, national battlefield site, and national military park. In 1958, an NPS committee recommended national battlefield as the single title for all such park lands. Other Designations [OD] Some units of the National Park System bear unique titles or combinations of titles, like the White House. APPENDIX B NATIONAL PARK SYSTEM UNITS AUTOMATICALLY LISTED IN THE NATIONAL REGISTER INTERNATIONAL HISTORIC SITE [IHS] NATIONAL BATTLEFIELD [NB] NATIONAL BATTLEFIELD PARK [NBP] NATIONAL BATTLEFIELD SITE [NBS] NATIONAL HISTORIC SITES [NHS] NATIONAL HISTORICAL PARK [NHP] NATIONAL MEMORIAL [NMEM] NATIONAL MILITARY PARK [NMP] NATIONAL MONUMENT [NM] TEXAS ALIBATES FLINT QUARRIES NM CHAMIZAL NMEM FORT DAVIS NHS LYNDON B. JOHNSON NHP PALO ALTO BATTLEFIELD NHS SAN ANTONIO MISSIONS NHP SECTION 15 INSPECTIONS AND SWEEPING LOG EXAMPLE ONLY Job Name: ANY JOB USA Job #: 17-0000 BMP Maintenance/Repair Log Date Maintenance and Repairs 4/5/2005 Silt fence installed 4/6/2005 Install Temporary toilets (2) 4/8/2005 Construction entrance installed east side 4/11/2005 Serviced temp. toilets 4/12/2005 Clean up site litter 4/13/2005 Clean up site litter 4/14/2005 Serviced temp.toilets 4/16/2005 Construction entrance reworked east side Silt fence repaired west side (middle) —4/18/2005 Serviced temp. toilets Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 4/19/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 4/20/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Silt fence replaced w/wire silt fence around inlet north side 4/21/2005 Serviced temp.toilets Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Clean up site litter 4/22/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Clean up site litter 4/23/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 4/24/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 4/25/2005 Serviced temp.toilets Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Construction entrance reworked east side 4/26/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Silt fence repaired southwest corner Clean up site litter 4/27/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Clean up site litter 4/28/2005 Serviced temp. toilets Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 4/29/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom Construction entrance removed east side Silt fence removed (partial) north side/Construction entrance replaced silt fence north side. Purpose:to install firelane Silt fence repaired north side Silt fence repaired inlet north side 4/30/2005 Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 5/2/2005 Serviced temp. toilets Silt fence repaired northeast corner Silt fence repaired north side (by pipes) Construction entrance removed north side Construction entrance relocated east side Silt fence repaired and replaced north side Cleaned parking lot access route w/shovel, scrapper, broom and mech. broom 5/3/2005 Cleaned parking lot access route w/shovel, scrapper,broom and mech. broom Silt fence repaired north side(2 places) Silt fence repaired north east corner Inlet silt fence repaired and reworked Job Name: Job #: BMP Maintenance/Repair Log Date Maintenance and Repairs OPERATOR INSPECTION AND MAINTENANCE RECORD Project Name: E Care Emergency Center Date: Qualification — Quoin-TEXO/City of Dallas Storm Water Training 2003, 2005, 2006, 2007,2011 Job# 1253 ispector: Weekly: Storm Event: _ Inches: STRUCTURAL BEST MANAGEMENT PRACTICE (BMP) Condition Used? (G,F,P) Actions Required ❑ Interceptor Swale ❑ Diversion Dike ❑ Pipe Slope Drain ❑ Vegetation ❑ Mulching ❑ Erosion Control Mats ❑ Other Controls ❑ Silt Fence ❑ Straw Bale Dike ❑ Tri-Sediment Filter ❑ Inlet Protection ❑ Sediment Trap ❑ Sediment Basin ❑ Check Dams ❑ Temp. Sed. Tank ❑ Stab. Const. Entry Cl Sandbag Berms Are BMPs in place and maintained in accordance with SWPPP for site? Yes No If not, why? Are there obvious signs of sediment loss or pollution from site? Yes I No I yes: SWPPP modifications required and/or I Controls are improperly installed or poorly maintained. Specific Observations (i.e. location, source, off site vehicle tracking: Are good housekeeping practices observed? Yes ❑ No I If not, measures to implement? STABILIZATION M Area Date Since Date of Is Area Area is Condition Being Last Next Stabilized? Stabilized of Reported Disturbed Disturbance (Yes/No) With Area 1. 2. 3. 4. 5. 6. 7. CHANGES TO THE POLLUTION PREVENTION PLAN Changes Required: Reason for Changes: I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system signed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons ,o 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 that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Inspector: Date: This inspection report can only be signed by a delegated agent in accordance with 30 TAC 305.128