Tax 2012A-PT130101 MOCKINGBIRD LANE RECONSTRUCTION
CITY OF COPPELL, TEXAS
SWPPP
MOCKINGBIRD LANE - FROM BLUEJAY LANE TO ORIOLE LANE
APPROX. 2.75 ACRES DISTURBED
CONSTRUCTION SITE NOTICE IN SECTION 2
TABLE OF CONTENTS
1. Introduction pg. 1
Site Description, Non-storm Discharge, pg. 2
Construction Schedule, Site Data pg. 2
Potential Pollutants, Erosion Controls pg. 3-5
Storm water Management, pg. 5
Maintnance Proceedures, Proceedural Requirements pg. 6-7
2. Construction Site Notice
3. Operator Certification
4. Endangered Species and Historical Places Certification
Endangered Species List
Historical Places List
5. Delegation Letters
Inspector Qualifications
Inspection Schedule
Inspection Form, Weekly Inspections
6. Erosion Control Plan
Area Maps
7. TXR150000 General Permit
8. BMP List
9. Activity Logs
10.Emergency Contact List, Spill Plan
INTRODUCTION
This Storm Water Pollution Prevention Plan has been prepared for major construction
activities within the City of Coppell, Mockingbird Lane Reconstruction Project. The plan
includes elements necessary for compliance with the statewide general permit for
construction activities administered by the Texas Commission on Environmental Equality
("TCEQ") under the Texas Pollutant Discharge Elimination System Program.
A Storm Water Pollution Prevention Plan must be implemented. This plan
accommodates the different stages of development within the sections listed above,and it
complies with all known local and state sanitary, septic,and erosion/sediment
requirements.
The storm water management controls included in this plan focus on providing control of
pollutant discharges with practical approaches that utilizes readily available techniques,
expertise, materials,and equipment
THE NATURE OF THIS CONSTRUCTION ACTIVITY
Removal and replacement of existing paving and utilities within the City of Coppell,Texas:
Mockingbird Lane- from Blue Jay Lane to Oriole Lane
THE PURPOSE OF THIS PLAN
The purpose of this plan is to provide guidelines for preventing soil and pollutants that
originate on the site from flowing into natural surface water bodies. Forms are included,
which are necessary for implementing the Plan. This Plan shall terminate as soon as
construction is completed and areas are stabilized or ownership is transferred.
1
SITE DESCRIPTION
This project consists of the redevelopment of 2.75 acres disturbed. Excavation,grading,
drainage, utilities and paving are present within this project.
NON STORM WATER DISCHARGE
The Statewide general permit for construction activities provides for each of the
following types of non-storm water discharges,which are anticipated at this project:
1. Fire hydrant flushings,
2. Water used to wash vehicles or control dust,
3. Portable water sources,such as flushing water distribution pipes,
4. Irrigation drainage, and
5. Air conditioning condensate.
Management of non-storm water discharge will be to maintain all storm water related
controls. No additional controls are needed to manage non storm water.The inlet
protection used in limiting storm water discharge from the site has a duel roll, they are also
in place to limit non-storm water discharge.
A. Construction Sequencing(see sequencing plan in back of this section)
The major Construction activities will include and be sequenced as follows:
1. Installation of storm water pollution prevention controls- Install inlet
protection per site map in section 6
2. Excavation of Improvement areas- Pavement will be excavated to expose
improvement area.
3. Reconstruction Improvement- Removal /replacement of utilities per
construction plans
4. Final grading and paving of disturbed areas- Backfill and reshaping of excavated
materials. Final paving to create permanent street surface.
5. Removal of storm water pollution prevention controls- Remove nonstructural
storm water controls if site is vegetated and stabilized.
B. Site Data
Runoff Coefficient The pre-construction runoff coefficient is approximately 0.9,
corresponding to a Rational Method 'C'value as approved by the State of Texas.
The total estimated runoff coefficient at the site after construction activities are
complete is 0.9
General Soil Type: Variable Eddy Complex, Semi eroded
Water Quality Data: Data describing water quality is not available for this
site.
Site Plan A site plan for this project with the required components for the Storm
Water Pollution Prevention Plan is attached. Additional site information is
contained in the construction documents.
Receiving Waters The receiving surface water body is Grapevine Creek.
2
POTENTIAL POLLUTANTS
Potential pollutants from this site may include diesel fuel,grease, oil,hydraulic fluid,
sediment from disturbed soil,mud from off-site tracking, and trash.
EROSION AND SEDIMENT CONTROLS
The contractor and the operator shall review the Storm Water Pollution Prevention Plan
prior to any construction activity to insure proper sequencing and responsibility.
A. Erosion Control Devices and Techniques
Erosion Control Devices may consist of one or more of the following:
1. Vegetative Buffer Strips
Vegetative buffer strips will consist of a section of grass or other plant material placed
perpendicular to the direction of flow. These strips will filter sediment as runoff passes
through the vegetation. Care will be taken to place the vegetation on slopes,which are not
too steep in order to accomplish the desired filtering affect. Sod,hydro mulch, seeding, or
existing vegetation may be used to establish the desired filtration.
a. if seeding is used, seed shall be per North Central Texas Council of
Governments specifications 3.1 0.
Seeding shall consist of preparing ground,providing and planting seed or a
mixture of seed of the kind specified along and across such areas as
designated on the plans and in accordance with these specifications.
For Planting Between March and September
Common Name Pounds Per Acre
Hulled Bermuda 8
For Planting Between September and February
Common Name Pounds Per Acre
Unhulled Hulled Bermuda 12
Established vegetation such as sod may be used to control erosion on disturbed
areas during construction.
Seeding and hydro mulching is used only to stabilize disturbed areas following
construction.
3
2. Silt Fences
Silt fence is a filter barrier designed to filter sediment-laden waters prior to
exiting the site. When the silt fence has accumulated sediment to half the height of the
fence, it shall be removed. Maintenance of silt fence throughout the life of the project is
required to maintain proper storm water compliance.
3. Inlet Protection
Inlet protection devices will be placed inside of inlet structures to prevent sediment
from entering the storm water system. These barriers must be checked for build up,which
will prohibit the flow of storm water.
C. Additional Controls
1. Waste Disposal
a. All Solid waste materials, including disposable materials incidental to
the major construction activities, will be collected in containers, the
containers will be labeled, emptied periodically, and trucked away
from the site.
b. Substances that have the potential for polluting surface and/or
groundwater must be controlled by whatever means necessary to
ensure that they do not discharge from the site. As an example,
special care shall be executing during equipment fueling and servicing
operations. If a spill occurs, it shall be contained and disposed of so
that it will not flow from the site or soak into the soil. In this regard,
potentially polluting substances shall be handled in a manner
consistent with the impact they represent.
2. Dust Control
During construction, water trucks will be used to reduce dust as needed. After
construction,the site will be stabilized as described elsewhere in order to reduce
dust.
3. Water Source
Water used to establish and maintain grass, for dust control, and for other
purposes during the construction phase must originate from a public water
supply or private well approved by the Texas State Department of Health.
4
4. Construction Phase "Best Maintenance Practices"
During the construction phase, the Primary Operator/Contractor(s) will
implement the following measures:
a. A primary Operator will designate areas for equipment cleaning,
maintenance, and repair. All contractors and subcontractors shall utilize
such areas for those purposes. This area will be located such that harmful
substances will not be allowed to leach or run off the site.
b. Concrete equipment and truck wash down (except for wheel washes)
shall take place within an earth berm. Use of detergents is
discouraged. If utilized,they shall be readily biodegradable.
c. Chemicals, paints, solvents, fertilizers, and other toxic materials shall
be labeled and stored in waterproof containers. Except during
application, the containers shall be kept in trucks or within storage
facilities. Runoff containing such materials shall be collected,
removed from the site, and disposed of at an approved solid waste or
chemical disposal facility.
d. A construction entrance shall be installed at the location(s) shown on
the plan when possible in accordance with the information shown on
the detail sheet. Sediment traps and diversion dikes, as necessary,
will be placed at the perimeter to contain any sediment leaving the
construction entrance area. When physically possible.
5. Sanitary Facilities
Sanitary facilities shall be provided at the site throughout construction activities.
They shall be utilized by construction personnel and serviced regularly by a
commercial operator.
D. Storm Water Management
The primary protection afforded by residential occupation will be of absence of intensive
pollutant generation. Additionally, vegetation cover at the completed project will provide
some biofiltering of surface runoff. Permanent storm water collection will be through a
curb and catch basin storm water system. Runoff will be directed through a storm sewer
system to outfall at bordering water body.
5
MAINTENANCE PROCEDURES
A. Maintenance
1. Erosion and sediment control measures will be inspected weekly,
occurring on the same day every week.
2. Locations where vehicles enter or exit the site shall be inspected for
evidence of sediments being tracked off-site by construction traffic. Such
sediment shall be removed before it can be conveyed to receiving storm
drains or creeks.
3. Inlet protection will be checked weekly for sediment buildup, which will
prevent drainage. If the filter is clogged with silt, it will be removed and
cleaned or replaced.
4. Seeded areas will be checked to see that the grass coverage is maintained.
Areas will be watered,fertilized,and reseeded as needed
5. Sediment traps and diversion swales will be checked regularly for
sediment cleanout. If the sediment trap is half-full, the sediment trap
should be excavated.
6. This plan intends to control water-borne and liquid pollutant discharges
by some combination of interception, filtration, and containment. Parties
implementing this plan must remain alert to the needs to periodically
refine and update the plan in order to accomplish the intended goals.
7. No off-site support activities will be utilized during this project.
B. Procedural Requirements
*The Primary Operator (RKM Utility Services, Inc.) has "operational
control" of the day-to-day activities to ensure compliance with the SWPPP.
*The Primary Operator (The City of Coppell, Texas) has operational
control over the plans and specifications and the authority to modify the plan
and specifications.
*A Secondary Operator is not present on this project.
1. A current version of the Storm Water Pollution Prevention Plan must be
kept on site.
2. Discharge of hazardous substances or oil into storm water is subject to
reporting requirements.
6
3. The Primary Operator must conduct inspections of the project to assure
compliance with this Plan. Inspections must be made by qualified personnel
at least once every 7 calender days and within 24 hours of 0.5 inches of
precipitation or more. The inspector is to follow all guidelines and
procedures detailed in the SWPPP.
4. This SWPPP plan and inspection reports must be retained for at least
three (3) years from the date that the site achieves final stabilization.
5. This plan must identify each contractor engaged in major construction
activities.
6. The Primary Operator and each contractor (involved in major
construction activity) must sign the appropriate certification statement in
this SWPPP Plan.
INSPECTION FORMS
Forms, which are referenced in this plan, are included on the following pages. Questions
about the TPDES program can be directed to the (TCEQ) Texas Commission on
Environmental Quality at:
(512) 239-4671
Notice of intent forms should be sent to:
Texas Commission on Environmental Quality
Storm Water&General Permit Team
P.O. Box 13087
Austin,Texas 78711-3087
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SMALL CONSTRUCTION SITE NOTICE
FOR THE
Texas Gommission 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.tcecstate.tx..us/nav/permits/wq construction.html
Operator Name: UTILITY SERVICES INC.
Contact Name and Phone Number:
HAROLD SWANN 972-241-2621
Project Description: Physical address or COPPELL,MOCKINGBIRD LANE RECONSTRUCTION
description of the site's location, estimated start
date and projected end date, or date that disturbed MOCKINGBIRD LANE-FROM BLUE JAY LANE TO
soils will be stabilized ORIOLE LANE
START: 4-2o-13 END: 12-14-13
Location of Stormwater Pollution Prevention Plan: RKM OFFICE-1805 ROYAL LANE,DALLAS,TEXAS
For Small Construction Activities Authorized Under Part II.E.2. (Obtaining Authorization to Discharge)
the following certification must be completed:
RYAN DOWDY
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.
Signature and Title r� _ - 1 !.F Date 'T ' /7 /3
Date Notice Removed
MS4 operator notified per Part ILF.3.
111•11Mm " •111
M1/11
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 ILE.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: CITY OF COPPELL,TEXAS
Contact Name and Phone Number:
CLAYTON PHILLIPS
Project Description: Physical address or COPPELL,MOCKINGBIRD LANE RECONSTRUCTION
description of the site's location, estimated start
date and projected end date, or date that disturbed MOCKINGBIRD LANE-FROM BLUE JAY LANE TO
soils will be stabilized ORIOLE LANE
START: 4-20-13 END:12-14-13
Location of Stormwater Pollution Prevention Plan:
For Small Construction Activities Authorized Under Part II.E.2. (Obtaining Authorization to Discharge)
the following certification must be completed:
i (Typed or Printed Name Person Completing This Certification)certify under
penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part 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 Date
Date Notice Removed
MS4 operator notified per Part ILF3.
NPDES & TPDES SWPPP
PRIMARY OPERATOR CERTIFICATION
PROJECT INFORMATION
Project Name: MOCKINGBIRD LANE RECONSTRUCTION
Name of Operator: RKM UTILITY SERVICES INC.
Address: 1805 ROYAL LN. DALLAS, TEXAS
Phone: 972-241-2621
Certification Statement:
"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 knowledge violations."
This certification is hereby signed in reference to Storm Water Discharge
Associated with Construction Activities at the above referenced project.
Signature: Date: 1 /7-L5
Printed Name: RYAN DOWDY
Responsibility: PRIMARY OPERATOR, CONTRACTOR, CORP PRESIDENT
Persons signing this certification must do so in compliance with the signatory requirements of the permit as found at CFR 122:22:
For a corporation: by a responsible corporation officer. This means a President,Vice-President,Secretary,Treasurer,Manager
as defined by 40 CFR 122.22(07-01-00 Edition)attached to this version.
For a partnership or sole proprietorship: by a general partner of the proprietor
For a Municipality,State,Federal or other public agency: a principal executive or ranking elected official
NPDES & TPDES SWPPP
PRIMARY OPERATOR CERTIFICATION
PROJECT INFORMATION
Project Name: MOCKINGBIRD LANE RECONSTRUCTION
Name of Operator: CITY OF COPPELL, TEXAS
Address:
Phone:
Certification Statement:
"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 knowledge violations."
This certification is hereby signed in reference to Storm Water Discharge
Associated with Construction Activities at the above referenced project.
Signature: Date:
Printed Name: CLAY PHILLIPS
Responsibility: PRIMARY OPERATOR, MUNICIPALITY, CITY MANAGER
Persons signing this certification must do so in compliance with the signatory requirements of the permit as found at CFR 122:22:
For a corporation: by a responsible corporation officer. This means a President,Vice-President,Secretary,Treasurer,Manager
as defined by 40 CFR 122.22(07-01-00 Edition)attached to this version.
For a partnership or sole proprietorship: by a general partner of the proprietor
For a Municipality,State,Federal or other public agency: a principal executive or ranking elected official
Endangered Species and Historical Places Certification
CITY OF COPPELL, TEXAS
MOCKINGBIRD LANE RECONSTRUCTION
Impact on The list of possible threatened and endangered
Endangered Species species is attached. A review of the site found no
evidence that this project will have an adverse impact
on any listed threatened or endangered plant or animal
species.
Impact on The list of sites registered with the National Register
Historical Places of Historical Places is attached. A review of the site
found no evidence that this project will have an adverse
impact on any historical site listed on the National
Register of Historical Sites.
"I certify under penalty of law that this document and all attachments were prepared
under my direction or supervision in accordance with a system designated to assure that
qualified personnel properly gathered and evaluated the information submitted. Based
on my inquiry of the person or persons who manage the system, or those persons directly
responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief true, accurate, and complete. I am aware there are specific
penalties for submitting false information, including the possibilities of fine and
imprisonment for knowing violations."
Primary Operator/Owner Certification
Owner: CITY OF COPPELL, TEXAS
By: Title: Date:
Printed Name:
Primary Operator/Contractor Certification
Contractor: RKM UTILITY SERVICES, INC.
By: Title: PRESIDENT Date: 1-/7-
-/3
Printed Name: RYAN DOWDY
Annotated County Lists of Rare Species
Last Revision: 1/22/2013 10:15:00 AM
DALLAS COUNTY
BIRDS Federal Status State Status
American Peregrine Falcon Falco peregrinus anatum DL T
year-round resident and local breeder in west Texas,nests in tall cliff eyries; also, migrant across state from
more northern breeding areas in US and Canada,winters along coast and farther south; occupies wide range
of habitats during migration, including urban, concentrations along coast and barrier islands; low-altitude
migrant, stopovers at leading landscape edges such as lake shores, coastlines, and barrier islands.
Arctic Peregrine Falcon Falco peregrinus tundrius DL
migrant throughout state from subspecies' far northern breeding range, winters along coast and farther
south; occupies wide range of habitats during migration, including urban, concentrations along coast and
barrier islands; low-altitude migrant, stopovers at leading landscape edges such as lake shores, coastlines,
and barrier islands.
Bald Eagle Haliaeetus leucocephalus DL T
found primarily near rivers and large lakes; nests in tall trees or on cliffs near water; communally roosts,
especially in winter; hunts live prey, scavenges, and pirates food from other birds
Black-capped Vireo Vireo atricapilla LE E
oak juniper woodlands with distinctive patchy, two-layered aspect; shrub and tree layer with open, grassy
spaces; requires foliage reaching to ground level for nesting cover; return to same territory, or one nearby,
year after year; deciduous and broad-leaved shrubs and trees provide insects for feeding; species
composition less important than presence of adequate broad-leaved shrubs, foliage to ground level, and
required structure; nesting season March-late summer
Golden-cheeked Warbler Setophaga chrysoparia LE E
juniper-oak woodlands; dependent on Ashe juniper(also known as cedar) for long fine bark strips, only
available from mature trees, used in nest construction; nests are placed in various trees other than Ashe
juniper; only a few mature junipers or nearby cedar brakes can provide the necessary nest material; forage
for insects in broad-leaved trees and shrubs; nesting late March-early summer
Henslow's Sparrow Ammodramus henslowii
wintering individuals (not flocks) found in weedy fields or cut-over areas where lots of bunch grasses occur
along with vines and brambles; a key component is bare ground for running/walking
Interior Least Tern Sterna antillarum athalassos LE E
subspecies is listed only when inland(more than 50 miles from a coastline); nests along sand and gravel
bars within braided streams,rivers; also know to nest on man-made structures (inland beaches, wastewater
treatment plants, gravel mines, etc); eats small fish and crustaceans, when breeding forages within a few
hundred feet of colony
Peregrine Falcon Falco peregrinus DL T
both subspecies migrate across the state from more northern breeding areas in US and Canada to winter
along coast and farther south; subspecies (F. p. anatum) is also a resident breeder in west Texas; the two
subspecies' listing statuses differ, F.p. tundrius is no longer listed in Texas; but because the subspecies are
not easily distinguishable at a distance, reference is generally made only to the species level; see subspecies
for habitat.
Annotated County Lists of Rare Species
Piping Plover Charadrius melodus LT T
wintering migrant along the Texas Gulf Coast; beaches and bayside mud or salt flats
Sprague's Pipit Anthus spragueii C
only in Texas during migration and winter, mid September to early April; short to medium distance, diurnal
migrant; strongly tied to native upland prairie, can be locally common in coastal grasslands, uncommon to
rare further west; sensitive to patch size and avoids edges.
Western Burrowing Owl Athene cunicularia hypugaea
open grasslands, especially prairie,plains, and savanna, sometimes in open areas such as vacant lots near
human habitation or airports; nests and roosts in abandoned burrows
White-faced Ibis Plegadis chihi T
prefers freshwater marshes, sloughs, and irrigated rice fields,but will attend brackish and saltwater habitats;
nests in marshes, in low trees, on the ground in bulrushes or reeds, or on floating mats
Whooping Crane Grus americana LE E
potential migrant via plains throughout most of state to coast; winters in coastal marshes of Aransas,
Calhoun, and Refugio counties
Wood Stork Mycteria americana T
forages in prairie ponds, flooded pastures or fields, ditches, and other shallow standing water, including salt-
water; usually roosts communally in tall snags, sometimes in association with other wading birds (i.e. active
heronries); breeds in Mexico and birds move into Gulf States in search of mud flats and other wetlands,
even those associated with forested areas; formerly nested in Texas, but no breeding records since 1960
INSECTS Federal Status State Status
Black Lordithon rove beetle Lordithon niger
historically known from Texas
MAMMALS Federal Status State Status
Cave myotis bat Myotis velifer
colonial and cave-dwelling; also roosts in rock crevices, old buildings, carports, under bridges, and even in
abandoned Cliff Swallow(Hirundo pyrrhonota)nests; roosts in clusters of up to thousands of individuals;
hibernates in limestone caves of Edwards Plateau and gypsum cave of Panhandle during winter;
opportunistic insectivore
Plains spotted skunk Spilogale putorius interrupta
catholic; open fields,prairies, croplands, fence rows, farmyards, forest edges, and woodlands; prefers
wooded, brushy areas and tallgrass prairie
MOLLUSKS Federal Status State Status
Fawnsfoot Truncilla donaciformis
small and large rivers especially on sand, mud,rocky mud, and sand and gravel, also silt and cobble bottoms
in still to swiftly flowing waters; Red (historic), Cypress (historic), Sabine (historic),Neches, Trinity, and
San Jacinto River basins.
Annotated County Lists of Rare Species
Little spectaclecase Villosa lienosa
creeks, rivers, and reservoirs, sandy substrates in slight to moderate current,usually along the banks in
slower currents; east Texas, Cypress through San Jacinto River basins
Louisiana pigtoe Pleurobema riddellii T
streams and moderate-size rivers,usually flowing water on substrates of mud, sand, and gravel; not
generally known from impoundments; Sabine,Neches, and Trinity (historic) River basins
Texas heelsplitter Potamilus amphichaenus T
quiet waters in mud or sand and also in reservoirs. Sabine,Neches, and Trinity River basins
Texas pigtoe Fusconaia askewi T
rivers with mixed mud, sand, and fine gravel in protected areas associated with fallen trees or other
structures; east Texas River basins, Sabine through Trinity rivers as well as San Jacinto River
Wabash pigtoe Fusconaia flava
creeks to large rivers on mud, sand, and gravel from all habitats except deep shifting sands; found in
moderate to swift current velocities; east Texas River basins, Red through San Jacinto River basins;
elsewhere occurs in reservoirs and lakes with no flow
REPTILES Federal Status State Status
Alligator snapping turtle Macrochelys temminckii T
perennial water bodies; deep water of rivers, canals, lakes, and oxbows; also swamps, bayous, and ponds
near deep running water; sometimes enters brackish coastal waters; usually in water with mud bottom and
abundant aquatic vegetation; may migrate several miles along rivers; active March-October; breeds April-
October
Texas garter snake Thamnophis sirtalis annectens
wet or moist microhabitats are conducive to the species occurrence, but is not necessarily restricted to them;
hibernates underground or in or under surface cover; breeds March-August
Texas horned lizard Phrynosoma cornutum T
open, arid and semi-arid regions with sparse vegetation, including grass, cactus, scattered brush or scrubby
trees; soil may vary in texture from sandy to rocky; burrows into soil, enters rodent burrows, or hides under
rock when inactive; breeds March-September
Timber/Canebrake Crotalus horridus T
rattlesnake
swamps, floodplains, upland pine and deciduous woodlands, riparian zones, abandoned farmland; limestone
bluffs, sandy soil or black clay; prefers dense ground cover, i.e. grapevines or palmetto
PLANTS Federal Status State Status
Glen Rose yucca Yucca necopina
Texas endemic; grasslands on sandy soils and limestone outcrops; flowering April-June
Warnock's coral-root Hexalectris warnockii
in leaf litter and humus in oak juniper woodlands on shaded slopes and intermittent,rocky creekbeds in
canyons; in the Trans Pecos in oak-pinyon-juniper woodlands in higher mesic canyons (to 2000 m [6550
Annotated County Lists of Rare Species
ft]),primarily on igneous substrates; in Terrell County under Quercus fusiformis mottes on terrraces of
spring-fed perennial streams, draining an otherwise rather xeric limestone landscape; on the Callahan Divide
(Taylor County),the White Rock Escarpment(Dallas County), and the Edwards Plateau in oak juniper
woodlands on limestone slopes; in Gillespie County on igneous substrates of the Llano Uplift; flowering
June-September; individual plants do not usually bloom in successive years
4/16/13 Halt:ref Register d Historical Razes-TEXAS(TX),Dallas Carly
* -
-1863,November 19
President Lincoln delivers historic Gettysburg Address.
TEXAS-Dallas County
1926 Reptthtic National Bank(added 2006--#05001543)
Also known as Davis Building
1309 Main St,Dallas - Iv ArT,
Historic Significance:Event,ArchitecturefEngineering 'ft
Architect,budder,or engineer Coburn&Fowler,Hill,H.D. '
Architectural Sty lc:SkYferaPer "01110*" eior4,
Area of Significance:Economics,Architecture
Period of Significance:1950-1974,1925-1949 4i1f alka
Owner:Prise
Historic Function:Conimeroeffrade
Historic Sub-function:Business,Financial Institution
Current Function:Domestic
Current Sub-function:Mukiple Dwelling
IR:* 4928 Bryan Street Apartments(added 2008--#08000539) The HockaigHlls
4928 Bryan Street,Dallas Geological History
Historic Significance:Architectutr../Engineering,Event on Display
Architect,builder,or engineer Jenkins,Cobb St Massey
Architectural Style:M ission/Spanisb Revival
Area of Significance:Architecture,Conanunity Planning And Development
Period of Significance:1950-1974,1925-1949
Owner:Private
Historic Function:Domestic
Historic Sub-function:Multiple Dwelling
Current Function:13ornestic
Current Sub-function:Multiple Dwelling
Alealde Street--Crockett Sehool Historic District(added 1995--#95000330)
200--500 Alealde,421--421A N.Carroll and 4315 Victor Dallas
Historic Significance:Architecture/Engineering
Architect,builder,or engineer Bulger,CW.
Architectural Style:Queen Anne,Bungsdow/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
Angle,D.M.,House(added 1985--#85000710)
800 Bekline,Cedar Hill
Historic Significance:Architecture/Engineering
Architect,builder,or engineer Unknown
Architectural Style:Late Victorian
Area of Significance:Architecture
Period of Significance:1875-1899
Owner Priiate
Historic Function:Domestic
Historic Sub-function:Singe Dwelling
Current Function:Domestic
mwetriationtiregisteroftistoriglaces.comfbeDallas/state.hirri 1/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
Current Sub-function:Single Dwelling
. Belo,Alfred Horatio,House(added 1975--#75001965)
2115 Ross Ave.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:U nknown
Architectural Style:Other,Classical Revival
Area of Significance:Architecture,Communications
Period of Significance:1875-1899
Owner:Private
Historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Vacant/Not In Use
Bianchi,Didaco and Ida,House(added 1995--#95000311)
Also known as Phase IV—East Dallas DAL/DA 599
4503 Reiger Ave.,Dallas
Historic Significance:Architecture/Engineering
Architect,builder,or engineer:Tang •W itchell
Architectural Style:Miss ion/Spanish Revival
A rca of Significance:Architecture
Period of Significance:1900-1924
Owner:Private
Historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Domestic
Current Sub-fiunction:Single Dwelling
Bluitt Sanitarium(added 2006--#06000651)
2036 Commerce St.,Dallas
Historic Significance:Event,Person
Historic Person:Bluitt,Dr.Benjamin R
Significant Year:1914,1910
Area of Significance:Black,Commerce,Health/Medicine
Period of Significance:1950-1974,1925-1949,1900-1924
Owner:Private
Historic Function:Cona erce/Trade,Health Care
Historic Sub-function:Clinic,Hospital,Specialty Store
Current Function:Commerce/Trade
Current Sub-function:Professional
Bromberg,Alfred and Juanita,House(added 2008--#08000658)
3201 Wendover Rd.,Dallas
Historic Significance:Architecture/Engineering
Architect,builder,or engineer:et al.,Ford,O'Neil
Architectural Style:Other
Area of Significance:Architecture
Period of Significance:1925-1949
Owner:Private
Historic Function:Domestic,Domestic,Transportation •
Historic Sub-function:Road-Related,Secondary Structure,Single Dwelling
Current Function:Domestic,Domestic,Transportation
Current Sub-function:Road-Related,Secondary Structure,Single Dwelling
Bryan—Peak Commercial Historic District(added 1995--#95000327)
4214--4311 Bryan Ave.and 1325--1408 N.Peak,Dallas
Historic Significance:Event,Architecture/Engineering
Area of Significance:Architecture,Commerce
Period of Sign ificance:1925-1949,1900-1924
Owner:Private
Historic Function:Conmercc-Tnade,Government,Recreation And Culture
Historic Sub-function:Business,Department Store,Post Office,Specialty Store,Theater
Gurent Function:Commerce//Trade,Government,Vacant/Not In Use
Current Sub-function:Business,Correctional Facility,Specialty Store
Bryant,William,Jr.,House(added 1985--#85000711)
S.Bmad and Cooper,Cedar Hill
Historic Significance:Person,Architecture/Engineering
Architect,builder,or engineer:Unknown
A rchitrrfa ra I St,INrT atr Virtnrian
www.nationalregisterofhistoricplaces.corn/lx/Dallas/state.html 2/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
Historic Person:Bryant,W illiam,Jr.
Significant Year:1889
A rea of Significance:Commerce,Architecture
Period of Significance:1875-1899
Owner:Private
historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Dormestic
Current Sub-function:Single Dwelling
Building at 3525 Turtle Creek Boulevard(added 2008--#08000475)
3525 Turtle Creek Blvd.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:etal.,Meyer,Howard R
Architectural Style:Modem Movement,Skyscraper
Area of Significance:Community Planning And Development,Architecture
Period of Significance:1950-1974
Owner:Private
Historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Domestic
Current Sub-function:Single Dwelling
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, Busch Building(added 1980--#80004489)
Also known as Kirby Building
1501--1509 Main St.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Lang&Witehell,Bamett,IIayes&Barnett
Architectural Style:Late Gothic Revival,Skyscraper
Area of Significance:Architecture.Commerce
Period of Significance:1900-1924
Owner:Private
Historic Function:Commerce/Trade
Historic Sub-function:Departmn t Store
Current Function:Commerce/Trade
Busch—Kirby Building(Boundary Increase)(added 1996--#96001015)
Also known as Kirby Building;A.Harris and Co.;See Also:Busch Building
1501--1509 Main St.,Dallas
Historic Significance:Event,.Architecture/Engineering
.Architect,builder,or engineer:lang&Witchell
Architectural Style:late Cuthic Revival,Art Deco
A rea of Significance:Coma erce,Architecture
Period ofSignificance:1925-1949,1900-1924
Owner:Private
Historic Function:Com nerce//Trade
Historic Sub-function:Business,Department Store
Current Function:Vacant Not In Usc
Cedar Springs Place(added 1991 --#91001901)
2531 Lucas Dr.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Centennial Architects,Shatp,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:Domes tic
Current Sub-function:Institutional Housing
Central Congregational Church(added 1995--#95000307)
A len kivmn,ae Phacn TV—Fact Vallee tlAt./ElA OA
wwN.nationalregisterofhistoricplaces.com/hdDallas/state.htm 3/11
4/16113 National Register of Historical Places-TEXAS(TX),Dallas County
1530 N.Carroll,Dallas
Historic Significance:A rch itecture/Fngin Bering
Architectural Style:Late Gothic Revival
Area of Significance:Architecture
Period of Significance:1900-1924
Own er:Private
Historic Function:Religion
Historic Sub-function:Religious Structure
Current Function:Religion
Current Sub-function:Religious Structure
• Chevrolet Motor Company Building(added 2003--#03000277)
3221 Commerce,Dallas
Historic Significance:Architecture/Engineering,Event
.Architect,builder,or engineer:Lang and Witchell,Hughes-O'Rourke Construction Co.
Architectural Style:Early Commercial
Area of Significance:Industry,Architecture
Period of Significance:1950_1974,1925-1949,1900-1924
Owner:Private
Historic Function:Government,Industry/Processing/Extraction
Historic Sub-function:Govemment Office,Manufacturing Facility
Current Function:Domestic
Current Sub-function:Multiple Dwelling
Claremont Apartments(added 1995--#95000313)
Also known as Phase IV—East Dallas DAIJDA 186
4636 Ross Ave.,Dallas
Historic Significance:Architecture/Engineering
Architectural Style:Mission/Spanish Revival
Area of Significance:Architecture
Period of Significance:1900-1924
Owner:Private
Historic Function:Domestic
Historic Sub-function:Multiple Dwelling
Current Function:Domestic
Current Sub-function:Multiple Dwelling
• Clements Hall(added 1980--#80004087)
3200 Dyer St.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Shepley,Rutan&Coolidge
Architectural Style:Other,Colonial Revival
Area of Significance:Education,Architecture,Community Planning And Development
Period of Significance:1900-1924
Owner:Private
Historic Function:Education
Historic Sub-function:College
Current Function:Education
Current Sub-function:College
▪ Colonial Hill Historic District(added 1995--#95000334)
Bounded by Pennsylvania Ave.,I-45,US 75 and Hatcher,Dallas
Historic Significance:Event,Architecture/Engineering
Architectural Style:Bungalow/Crafts man,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:Comm erce/Trade,Domestic
Current Sub-function:Business,Single Dwelling
Continental Gin Company(added 1983--#83003134)
3301-3333 Elm St.,212 and 232 Trunk Ave.,Dallas
Historic Sig nificance:Architecture/Engineering
Architect,builder,or engineer:Buchannon and Ciuessler,Stevcnson,D.L
Architectural Style:Early Commercial
Area of Significance:Invention,Architecture,Cornnerce,Industry
Period of Significance:1900-1924,1875-1899
wA,w.nationalregisterofhistoricplaces.conJbdDallas/state.html 4/11
4116/13 National Register of Historical Places-TEXAS(TX),Dallas County
Owner:?mute
Historic Function:Com erce/Trade,Industry/Processing/Extraction
Historic Sub-function:Manufacturing Facility,Warehouse
Current Function:Commerce/Trade,Industry/Processing/Extraction
Current Sub-function:Manufacturing Facility,Warehouse
Dallas County Courthouse(added 1976--#76002019)
Houston and Commerce Sts.,Dallas
Historic Significance:Architecture/Engineering
Architect,builder,or engineer:Orlopp&Kusener
Architectural Style:Romanesque
Area of Significance:Architecture
Period of Significance:1875-1899
Owner:Local
Historic Function:Government
Historic Sub-function:Courthouse •
Current Function:Govern ent
Dallas Downtown Historic District(added 2006--#04000894)
Roughly bounded by Federal,N.St.Paul,Pacific,Harwood,S.Pearl,Commerce,S Ervay,Akard,Commerce and Field,Dallas
Historic Signifcance:Event,Architecture/Engineering
Architect,builder,or engineer:ct.a l.,Ahlsehlager,Walter
Architectural Style:Late 19th And 20th Century Revivals,Late Victorian
Area of Significance:Conunerce,Connnamity Planning And Development,Architecture
Period ofSignil cance:1950-1974,1925-1949,1900-1924,1875-1899
Owner:Local,Private •
Historic Function:Connnerce/Trade,Government,Landscape,Recreation And Culture
Historic Sub-function:Business,City Hall,Financial Institution,Park,Plaza,Post Office,Theater
Current Function:Comnerce/Trade,Government,Landscape,Recreation And Culture,Religion,Vacant/Not In Use,Work In
Progress
Current Sub-function:Business,City Hall,Financial Institution,Park,Plaza,Religious Structure,Theater
Dallas Downtown Historic District(Boundary Increase)(added 2009--#08001299)
Bounded by Jackson,North Hardwood Commerce,N.-S.line between S.Pearl Exwy.,and S.Hardwood Canton,Dallas
Historic Significance:Architecture/Engineering,Event
Architect,builder,or engineer:et al.,Ahlschlager,Walter
Architectural Style:Late 19th And Early 20th Century American Movements,Modem Movement
Area of Significance:Commerce,Architecture
Period of Significance:195(1-1974,1925-1949,1900-1924
Owner:Private,Local
Historic Function:Commerce/Trade,Government,Industry/Processing/DV-action,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 Fire Station No. 16(added 1997--#97000363) •
5501 Columbia Ave.,Dallas
Historic Significance:Architecture/Engineering,Event
Architect,builder,or engineer:Johnson,GG,Overbeck,H.A.
Architectural Style:Miss ion/Spanish Revival,Prairie School
Area of Significance:Architecture,Community Planning And Development
Period of Significance:1925-1949,1900-1924
Owner:Private
Historic Function:(iovern ent
Historic Sub-function:Fire Station
Current Function:Recreation And Culture
Current Sub-function:Museum
Dallas Hall(added 1978--#78002913)
Southern Methodist University campus,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Shepley,Rutan&Coolidge
Architectural Style:Other,Colonial Revival
• Area of Significance.:Education,Architecture
Period ofSignifcance:1900-1924
Owner:Private
Historic Function:Education
Historic Sub-function:College
tnvw.nationalregisterofhistoricplaces.comIbdDallas/state.html 5/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
Current Function:Education
Current Sub-function:College
Dallas High School Historic District(added 1996--#96000035)
Also known as Dallas Technical High School;Norman Robert Crozier Technical
2218 Bryan St.,Dallas
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
Dallas National Bank(added 2005--#05000419)
1530 Main and 1511 Commerce St.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Coburn,Smith&Evans,Hexter&Chambers
Architectural Style:Skyscraper,Cothic Revival
Area of Significance:Economics,Architecture
Period of Significance:1950-1974,1925-1949
Owner:Private
Historic Function:Commerce;Trade
Historic Sub-function:Business
Cement Function:Work In Progress
Dallas Scottish Rite Temple(added 1980--#80004088)
Harwood and Young Sts.,Dallas
Historic Significance.:Event,Architecture/Engineering
Architect,builder,or engineer:Hubble,B.H.,Greene,H.M.
Architectural Style:Beaux Arts
Area of Significance:Architecture,Social History
Period of Significance:1900-1924
Owner:Private
Historic Function:Social
Historic Sub-function:Clubhouse
Current Function:Social
Current.Sub-function:Clubhouse
Dallas Tent and Awning Building(added 1999--#99001292)
Also known as Murray Building
3401 Commerce St.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Jordon,J.M.
Architectural Style:Early Commercial
Area of Significance:Architecture,Industry
Period of Significance:1925-1949,1900-1924
Owner:Private
Historic Function:Ind ustry/Processing/Extraction
Historic Sub-function:Manuf'acturing Facility
Current Function:Domestic
Current Sub-function:Multiple Dwelling
Dallas Times Herald Pasadena Perfect Home(added 2006--#06000819)
6938 Wldgrove Ave.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Thomas,Arthur E.et.al.
Architectural Style:Tudor Revival
Area of Significance:Comnun ity Planning And Development,Architecture
Period of Significance:1925-1949
Owner:Private
Historic Function:Don stic
Historic Sub-function:Secondary Structure,Single Dwelling
Current Function:Domestic
Current Sub-function:Secondary Structure,Single Dwelling
Dallas Union Terminal(added 1975--#75001966)
400 S.Houston St.,Dallas
wuwv.nationalregisterofhistoricplaces.corrdbdDallas/state.html 6/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
Architect,builder,or engineer:Hunt,Jarvis
Architectural Style:Beaux Arts
Area of Significance:Transportation,Architecture
Period of Significance:1900-1924
Owner:Local
Historic Function:Transportation
Historic Sub-function:Rail-Related
Current Function:Transportation
Current Sub-function:Rail-Related
DeGolyer Estate(added 1978--#78002914)
Also known as Everette DeGolyer House(Rancho Encinal)
8525 Garland Rd.,Dallas
Historic Significance:Person,Event,Architecture/Engineering
Architect,builder,or engineer:Schutt,Burton,Scott,Dennnn
.Architectural Style:Other,Mission/Spanish Revival
Historic Person:DeGolyer,Everette
Significant Year:1938,1940.
Area of Significance:Science,Architecture,Landscape Architecture
Period of Significance:1925-1949
Owner:Local
Historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Landscape
Current Sub-function:Park
Dealey Plaza Historic District(added 1993--#93001607)
Roughly bounded by Pacific Ave.,Market St.,Jackson St.and right of way of Dallas Right of Way Management Company,
Dallas
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:Arc hit ecture,Landscape Architecture,Politics/Government
Period ofSigniticance:1950-1974,1925-1949,1900-1924,1875-1899
Owner:Mixed
Historic Function:Domestic,Government,Landscape
Historic Sub-function:Government Office,Plaza,Single Dwelling
Current Function:Domestic,Government,Landscape
Current Sub-function:Government Office,Plaza,Single Dwelling
Dixon—Moore House(added 1995--#95000320)
Also known as Phase IV—East Dallas DAL/DA 96(South)
2716 Peabody,Dallas
Historic Significance:Architecture/Engineering
•
Architectural Style:Other
A rea of Significance:Architecture
Period of Significance:1900-1924
Owner:Private
Historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Domestic
Current Sub-function:Single Dwelling
Ellis,James H.and Molly,House(added 1995--#95000323)
Also known as Phase IV—East Dallas DAL/DA 1302
2426 Pine,Dallas
Historic Significance:Architecture/Engineering
Architectural Style:Other
Area of Significance:Architecture
Period of Significance:1900-1924
Owner.Private
Historic Function:Domestic
Historic Sub-function:Secondary Structure,Single Dwelling
Current Function:Domestic
Current Sub-function:Secondary Structure,Single Dwelling
Emanuel Lutheran Church(added 1995--#95000315)
www.nationalregisterofhistoricplaces.com/br/Dallas/state.html 7/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
t� Also known as Phase IV—East Dallas DAL/DA 194
4301 San Jacinto,Dallas
Historic Significance:Architecture/Engineering
Architectural Style:Late Gothic Revival
Area of Signifcance:Architecture
Period of Significance:1925-1949
Owner.Private
Historic Function:Religion
Historic Sub-function:Religious Structure
Current Function:Religion
Current Sub-function:Religious Structure
Fannin,James W.,Elementary School(added 1995--#95000314)
Also known]as Phase IV—East Dallas DAL/DA 185
4800 Ross Ave.,Dallas
Historic Significance:Architecture/Engineering
Architect,builder,or engineer:Lang&Witchell
Architectural Style:Late Gothic Revival
Area of Significance:Architecture
Period of Significance:1900-1924
Owner:Private
Historic Function:Education
Historic Sub-function:School
Current Function:Education
Current Sub-function:School
Fidelity Union Life Insurance Building(added 2009--#09000306)
Also known as Fidelity Union Life
1511 Bryan and 1507 Pacific Ave.,Dallas
Historic Significance:Event
Arca of Significance:Commerce
Period of Significance:1950-1974
Owner:Private
Historic Function:Commerce/Trade
Historic Sub-function:Business
Current Function:Domestic
Current Sub-function:Multiple Dwelling
Florence,Fred,Hall(added 1980--#80004089)
3330 University Blvd.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:DeWitt&Letonun
Architectural Style:Other,Colonial Revival
A re of Significance:Education,Architecture,Community Planning And Development
Period of Significance:1900-1924
Owner:Private
Historic Function:Education
Historic Sub-function:College
Current Function:Education
Current Sub-function:College
Forest Avenue High School,Old(added 1995--#95000318)
Also known as Madison,James,High School;Phase IV—East Dallas DAL/DA 49
3000 Martin Luther King,Jr.,Blvd.,Dallas
Historic Significance:.Architecture/Engineering
Architect,builder,or engineer:ittner,W.P.
Architectural Style:Renaissance
Area of Significance:Architecture
Period of Significance:1900-1924
Owner:Private
Historic Function:Education
Historic Sub-function:School
Current Function:Education
Current Sub-function:School
G&J Manufacturing(added 2002--#02000992)
3912 Willow St.,Dallas
Historic Significance:Event
A re of Significance:Education,Indus try
www.nationalregisteronlistoricplaces.comtdDallas/state.html 8/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
Period of Significance:1950-1974,1925-1949
Owner:Private
Historic Function:Indus try/Process ing/Fatraction
Historic Sub-function:Manufacturing Facility
Current Function:Commerce/Trade
Current Sub-function:Business
. Gilbert,Samuel and Julia,House(added 1988--#88002063)
Also known as The Gilbert Homestead;The Old Rock House
2540 Farmers Branch In.,Farmers Branch
Historic Significance:Information Potential,Architecture/Engineering
Architect,builder,or engineer:Unknown
Architectural Style:Other,Greek Revival
.A rea of Significance:His toric-Non-.Aboriginal,Architecture
Cultural Affiliation:A.nglo-American
Period of Significance:1925-1949,1900-1924,1875-1899,1850-1874
Owner:Local
Historic Function:Domestic
Historic Sub-function:Single Dwelling
Current Function:Landscape,Recreation And Culture
Current Sub-function:Museum,Park
Goodyear Tire and Rubber Company Building and B.F.Goodrich Building(added 2002--#02000009)
Also known as Howard R.Wolf Building
2809 Parry Ave.and 4136-40 Commerce St.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:F.J.Woemer&Company
Architectural Style:Chicago
A rea of Significance:Industry,Architecture
Period of Significance:1950-1974,1925-1949
Owner:Private
Historic Funct ion:Agriculture/Subsistence,Connnerce/Trade
Historic Suh-function:Business,Warehouse
Current Function:CommerceJTrade,Dornestic
Current Sub-function:Multiple Dwelling,Professional
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Grace Methodist Episcopal Church(added 1982--#82001736)
Also known as Grace United Methodist Church
4105 Junius St.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Caan,W.A.
Architectural Style:Gothic Revival
A rea o f Significance:A rch itecture,Religion
Period of Significance:1925-1949,1900-1924
Owner:Private
Historic Function:Religion
Historic Sub-function:Religious Structure
Current Function:Religion
Current Sub-function:Religious Structure
Greenway Parks Historic District(added 2008--#07001383)
Bounded by W.Mockingbird Ln.,W.University Blvd.,Inwood&N.Dallas Tollway.,Dallas
Historic Significance:Event,Architecture/Engineering
Architect,builder,or engineer:Allen,(i orge,et,al.
Architectural Style:Modem Movement,Late 19th And 20th Century Revivals
Area of Significance:Architecture,Community Planning And Developn>rnt
Period of Significance:1950-1974,1925-1949
Owner:Private
Historic Function:Domes tic,Landscape
Historic Sub-function:Park,Single Dwelling
Current Function:Domes tic,Landscape
C uirent Sub-function:Park,Single Dwelling
Greer,George C.,House(added 1997--#96001563)
Also known as Greer-Saner-McCutcheon House:See also:Swiss Avenue Historic
www.nationalregisterofhistoricplaces.com/bdDallas/state.hrn1 rn1 9/11
4/16/13 National Register of Historical Places-TEXAS(TX),Dallas County
5439 Swiss Ave.,Dallas
Historic Significance:Architecture/Engineering
Architect,builder,or engineer:Thompson,Hal B.
Architectural Style:Colonial Revival
Area of Significance:Architecture
Period of Significance:1925-1949,1900-1924
Owner.Private
Historic Function:Domestic
Historic Sub-function:Secondary Structure,Single Dwelling
Current Function:Domestic
Current Sub-function:Secondary Structure,Single.Dwelling
Gulf Oil Distribution Facility(added 2010--#10000144)
Also known as Hickory Street Annex
501 Second Aye,Dallas
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
Harlan Building(added 2004--#04000102)
2018 Cadiz St.,Dallas
Historic Significance:Event
Area of Significance:Commerce
Period of Significance:1925-1949,1900-1924
Owner:Private
Historic Function:Comunerce/Trade
Historic Sub-function:Warehouse
Current Function:Work In Progress
qa, Hawkes,Z T.(Tip),House(added 1985--#85000712)
132 N.Potter St.,Cedar Hill
Historic Significance:Architecture/Engineering
Architect,builder,or engineer:Unknown
Architectural Style:Other
Area of Significance:Architecture
Period of Significance:1875-1899
Owner:Private
Historic Function:Do estic
Historic Sub-function:Secondary Structure,Single Dwelling
Current Function:Domestic
Current Sub-function:Secondary Structure,Single Dwelling
Highland Park Shopping Village(added 1997--#97001393)
Also known as Highland Park Village
Jet.of Preston Rd.and Mockingbird Ln,Highpark
Historic Significance:Architecture/Engineering,Event
Architect,builder,or engineer:multiple
Architectural Style:Mission/Spanish Revival,Colonial Revival
Area of Significance:Connmerce,Community Planning And Development,Architecture
Period of Significance:1950-1974,1925-1949
Owner:Private
Historic Function:Commerce/Trade
Historic Sub-function:Department Store,Specialty Store
Current Function:Commerce/Trade
Cunent Sub-function:Department Store,Specialty Store
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Delegating an "Authorized Representative"
PRIMARY OPERATOR
CITY OF COPPELL, TEXAS
"Executive Director"
TCEQ Storm Water and General Permits Team: MC—148
P.O. BOX 13087
Austin, TX 78711-3087
Dear Executive Director:
This letter serves to designate either a person or specifically described position as an
authorized person for signing reports, storm water pollution prevention plans, certifications or
other information requested by the Director or required by the permit. This authorization cannot
be used for signing a TPDES permit application(e.g.,Notice of Intent(NOI)). The following
person or position is hereby authorized to sign reports, plans, or certifications other than the NOI
application.
INSPECTOR:
PROJECT: MOCKINGBIRD LANE RECONSTRUCTION
Repairs are to be made by qualified personnel within the allotted 7 day period. All infractions
noted on the previous inspection must be repaired before the following inspection date.
I certify under penalty of law that this document and all attached were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gathered and evaluated the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is,to the best of my knowledge and belief,true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name: CLAY PHILLIPS Title: CITY MANAGER
Signature: Date:
Delegating an "Authorized Representative"
PRIMARY OPERATOR
RKM UTILITY SERVICES INC., TEXAS
"Executive Director"
TCEQ Storm Water and General Permits Team: MC—148
P.O. BOX 13087
Austin, TX 78711-3087
Dear Executive Director:
This letter serves to designate either a person or specifically described position as an
authorized person for signing reports, storm water pollution prevention plans, certifications or
other information requested by the Director or required by the permit. This authorization cannot
be used for signing a TPDES permit application(e.g.,Notice of Intent(NOI)). The following
person or position is hereby authorized to sign reports, plans, or certifications other than the NOI
application.
INSPECTOR: HAROLD SWANN 972-241-2621
PROJECT: MOCKINGBIRD LANE RECONSTRUCTION
Repairs are to be made by qualified personnel within the allotted 7 day period. All infractions
noted on the previous inspection must be repaired before the following inspection date.
I certify under penalty of law that this document and all attached were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gathered and evaluated the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is,to the best of my knowledge and belief,true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name: RYAN DOWDY Title: PRESIDENT
Signature: Date:
Inspector Qaulifications
Project: COPPELL, MOCKINGBIRD LANE RECONSTRUCTION
Name: HAROLD SWANN
Phone: 972-241-2621
A. Has working knowledge of TCEQ permit requirements and regulations
B. Familiar with SWPPP document and erosion/sediment drawing for this
project.
C. More than 35 years experience in all aspects of construction, including
selection and implementation of BMPs used in sediment and erosion
control.
INSPECTION
SCHEDULE
Project: ARLINGTON, TEXAS RESIDENTIAL STREET
RECONSTRUCTION #PWST11056 GROUP 1 & 4
Primary RKM UTILITY SERVICES INC.
Operator:
Inspector: Harold Swann
972-241-2621
Storm Water compliance inspections will be performed weekly and within 24
hours of 0.5 inches of rain or more.
Weekly inspections will be performed on Mondays.
STORM WATER POLLUTION
PREVENTION
INSPECTION FORM
PROJECT: DATE:
SITE CONDITIONS: INSPECTION TYPE:
INSPECTOR: QUALIFICATIONS:
POLLUTANT CONTROLS IN COMPLIANCE EFFECTIVE
CONSTRUCTION ENTRANCE YES NO YES NO
SILT FENCE YES NO YES NO
TRASH BIN YES NO YES NO
SANITATION FACILITIES YES NO YES NO
STONE OVER FLOW STRUCTURE YES NO YES NO
CONCRETE WASHOUT AREA YES NO YES NO
ORANGE SAFETY FENCE YES NO YES NO
EROSION MATTING YES NO YES NO
INLET PROTECTION YES NO YES NO
MAJOR OBSERVATIONS NOTED:
ADDITIONAL CONTROLS NEEDED AND LOCATIONS:
"I certify under the 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 gathered and evaluated the information submitted. Based on my inquiry of the
person or persons who manage the system,or those persons directly responsible for gathering the information,the information submitted is,to the
best of my knowledge and belief,true,accurate and complete. I am aware that there are significant penalities for submitting false information,
including the possibility of fine and imprisonment for knowing violations."
Inspector: Date:
EROSION CONTROL PLAN MOCKINGBIRD LANE RECON.
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Texas Commission on Environmental Quality
P.O.Box 13087,Austin,Texas 78711-3087
41 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.TXRi50000,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: FEB �' 9 2013 Stete For mission
Construction General Permit TPDES General Permit TXRi50000
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
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. Activities Extending Beyond the Waiver Period 22
Section H. Alternative TPDES Permit Coverage 23
1. Individual Permit Alternative 23
2. Individual Permit Required �3
3. Alternative Discharge Authorization 23
Section I. Permit Expiration �3
Part III. Stormwater Pollution Prevention Plans(SWP3) 24
Section A. Shared SWP3 Development �4
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 W. 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 TXRi50000
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
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)
7
< 1 acre I or more acres
(*1) ('I)
NO Do you meet the YES WiH 5 or more
• - definition of 10 acres be disturbed?
"operator?"('2) (*1)
NO YES
4
Permit Coverage Reauired
• Prepare and Implement SWP3
• Post Site Notice
• Submit Copy of Site Notice to
MS4 Operator
Are you a"primary
NO operator?"('2)
(
Permit Coverage Not YES •
Required.Unless Part r Permit Coverage Required
of a Larger Common • Prepare and Implement SWP3
Plan of Development • Submit NOl to TCEQ
or Sale • Post Site Notice
• Submit Copy of NOI to MS4
Operator
(*l) To determine the size of the construction project,use the size of the entire area to be disturbed,and
include the size of tke larger common plan of development or sale,if the project is part of a larger
project(refer to Part LA,"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 1.,
Section R.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 TXR150000
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 4o Code of Federal Regulations
(CFR)§122.2 as a regulation published by the Administrator under§304(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:
(1) the homebuilder completing final stabilization as specified in condition(a)above;or
(2) the homebuilder establishing temporary stabilization for an individual lot prior to
the time of transfer of the ownership of the home to the buyer and after informing the
homeowner of the need for,and benefits of,final stabilization.If temporary
stabilization is not feasible,then the homebuilder may fulfill this requirement by
retaining perimeter controls or 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 maybe 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:
(i) 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)(i)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.
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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.
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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
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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 4o 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
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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 may be
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 may be authorized under this
general permit,provided that the following conditions are met:
(a) the activities are located within one(1)mile from the boundary of the permitted
construction site and directly support the construction activity;
(b) 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),
TXR050000(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
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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 maybe 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 may be
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.112.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.
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Construction General Permit TPDES General Permit TXR150000
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 3o 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
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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.
11. 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 maybe 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 go 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 TXR150000(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
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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.
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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(10)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);
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Construction General Permit TPDES General Permit TXR150000
(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.1.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
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Construction General Permit TPDES General Permit TXRi50000
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 maybe 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.
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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:
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Construction General Permit TPDES General Permit TXR1.50000
(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(io)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.1.above.
Operators of regulated construction activities who are not required to submit an NOI
must remove the original site notice,and the new operator must post the required site
notice prior to the transfer of operational control,in accordance with condition(a)or(b)
below. A copy of the completed site notice must be provided to the operator of any MS4
receiving the discharge,in accordance with Section 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.
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Construction General Permit TPDES General Permit TXRl50000
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:/Jei.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:
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Construction General Permit TPDES General Permit TXRi50000
(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 3o 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 205.4(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 3o 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
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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.
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Construction General Permit TPDES General Permit TXRi50000
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
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Construction General Permit TPDES General Permit TXR150000
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.
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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.
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(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.].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.i of this general permit:
(A) the dates when major grading activities occur;
(B) the dates when construction activities temporarily or permanently
cease on a portion of the site;and
(C) the dates when stabilization measures are initiated.
(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
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Construction General Permit TPDES General Permit TXR1.50000
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(1o)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.
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Construction General Permit TPDES General Permit TXRi50000
(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(io)
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 maybe
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.
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Construction General Permit TPDES General Permit TXR150000
(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 3o 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
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Construction General Permit TPDES General Permit TXR150000
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 maybe performed. For
representative inspections,personnel must inspect controls along the
construction site for 0.25 mile above and below each access point where a
roadway,undisturbed right-of-way,or other similar feature intersects the
construction site and allows access to the areas described in Part III.F.7.(a)
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Construction General Permit TPDES General Permit TXRi50000
above. The conditions of the controls along each inspected 0.25 mile portion
may be considered as representative of the condition of controls along that reach
extending from the end of the 0.25 mile portion to either the end of the next 0.25
mile inspected portion,or to the end of the project,whichever occurs first.
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.
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Construction General Permit TPDES General Permit TXRi50000
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
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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
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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(*1)(*2) Grab(*3)
Total Suspended loo mg/L 1/quarter(*1)(*2) Grab(*3)
Solids
pH 6.o—9.o Standard 1/quarter(*1)(*2) Grab(*3)
Units
Total Iron 1.3 mg/L 1/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 30
minutes of discharge,the reason must be documented and attached to all
required reports and records of the sampling activity.
(*2) Sampling must be conducted at least once during each of the following periods.
The first sample must be collected during the first full quarter that a
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 o.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.
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Construction General Permit TPDES General Permit TXR150000
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 maybe 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
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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.
(1) Operators must prevent or minimize the discharge of spilled cement,
aggregate(including sand or gravel),settled dust,or other significant
materials from paved portions of the site that are exposed to 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.
(f) Management of Runoff-The SWP3 shall contain a narrative consideration for
reducing the volume of runoff from concrete batch plants by diverting runoff or
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.
(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 TXR150000
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 4o
Construction General Permit TPDES General Permit TXRi50000
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 3o 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 TXRi50000
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.30 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. -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.3o 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
3o 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 TXR150000
Loving: Nov. 1-Apr.30,or Nov. 15-May Scurry: Nov.15-Apr.30
14 Shackelford: Dec.15-Feb.14
Lubbock: Nov. 15-Apr.3o Sherman: Nov.15-Apr.30
Lynn: Nov.15-Apr.3o Stephens: Dec.15-Feb.14
Martin: Nov. 15-Apr.3o Sterling: Nov.15-Apr.30
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.30
Menard: Dec. 15-Feb.14 Taylor: Dec. 15-Feb. 14
Midland: Nov.15-Apr.3o Terrell: Nov.15-Apr.30
Mitchell: Nov.15-Apr.3o Terry: Nov. 15-Apr.30
Moore: Nov. 15-Apr.3o Throckmorton: Dec.15-Feb. 14
Motley: Nov.15-Jan. 14,or Feb. 1-Mar. Tom Green: Dec. 15-Feb. 14
30
Nolan: Dec.15 Feb. 14 Upton: Nov.15-Apr.30
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.30
30
Pecos: Nov. 15-Apr.3o Ward: Nov.1-Apr.14,or Nov.15-Apr.
30
Potter: Nov. 15-Apr.3o Wichita: Dec. 15-Feb.14
Presidio: Nov. 1-Apr.30,or Nov.15 Wilbarger: Dec. 15-Feb.14
May 14
Randall: Nov. 15-Apr.3o Winkler: Nov.1-Apr.30,or Nov. 15-
May 14
Reagan: Nov. 15-Apr.3o Yoakum: Nov. 1-Apr.30,or Nov. 15-
Real: Dec. 15-Feb. 14 May 14
Reeves: Nov. 1-Apr. 30,or Nov. 15-May Young: Dec.15-Feb. 14
14 Wheeler: Jan. 1-Mar.30,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 TXRi50000
Appendix B:Erosivity Index(EI)Zones in Texas
'" '�' A. i ��¢■ ..tea. 'i■ 'i. 6■= --arm a.r"rr�s.>
A+4 r E�!- *4 9 a.�a y !: t* .i 7 it ,I b . ...4i, * • r 4 4 *1 4-041.11.- .. *ma f
xra*4..4.1'V MN 111111 r '° ■ �'S - *a.•.«. I *4it : a■..■9 a !s 0,: ■_ r•+�r- v_ '±_ �s "e Apt NM a r.it,..,. •,..rap° .s err - � .t • .156 .•
72 wit '"r# "�F'V,R Y'■}'$.1 '—_ _■TeS �'F i
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 10/1210/2']11/11 11/2612/11 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 99 100 100 100
92 0 0 0 0 1 1 1 2 6 16 29 39 46 53 60 67 74 81 88 95 99 99 100 100 100
93 0 1 1 2 3 4 6 8 13 25 40 49 56 62 67 72 76 80 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 97 100
97 0 1 3 5 7 10 14 20 28 37 48 56 61 64 -68 72 77 81 86 89 92 95 98 99 100
106 0 3 6 9 13 17 21 27 33 38 44 49 55 61 67 71 75 78 81 84 86 90 94 97 100
* 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 11 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
iSWMTM Technical Manual Construction Controls
3.4 Inlet Protection
Sediment Control
Description: Inlet protection consists
of a variety of methods to intercept
Concrete blocks orOer dam device sediment at low point inlets through
the use of depressed grading, filter
stone, filter fabric, inlet inserts, organic
• _rx" rPavement ofpresent) filter tubes and other materials. The
protection devices are placed around
Sediment perldip9 Cern aetedSoN or across the inlet openings to provide•
area(1 *IA max kr localized detention or filtration of
OutEatl sediment and floatable materials in
Cross Section stormwater. Protection devices may
be assembled onsite or purchased as
manufactured assemblies.
KEY CONSIDERATIONS APPLICATIONS
DESIGN CRITERIA: Perimeter Control
• Evaluate drainage patterns to ensure inlet protection will not Slope Protection
cause flooding of roadway,property or structures
• Never block entire inlet opening Sediment Barrier
• Size according to drainage area and flow rates Channel Protection
• Include flow bypass for dogged controls and large storm Temporary Stabilization
events
Final Stabilization
ADVANTAGES/BENEFITS: Waste Management
• May be the only feasible sediment control when all Housekeeping Practices
construction is located within rights-of-way
DISADVANTAGES!UMITAT1ONS: Fe=O.35-O.65
• Limited effectiveness and reliability (Depends on soil type)
• High maintenance requirements
• Has potential to flood roadways or adjacent properties IMPLFMINTATION
CONSIDERATIONS
MAINTENANCE REQUIREMENTS:
Capital Costs
• Inspect regularly
• Check for and remove blockage of inlet after every storm event • Maintenance
• Remove sediment before it reaches half the design height or = Training
volume of the inlet protection,more frequently for curb inlets
• Repair or replace damaged materials c Suitability for Slopes?i 5%
• Clean or replace filter stone and organic fitter tubes is when
clogged with sediment Other Considerations:
• Traffic hazards
TARGETED POLLUTANTS • Passage of larger storm events
without causing flooding
Q Sediment • Flow diversion to other inlets or
O Nutrients&Toxic Materials drainage points
O Oii&Grease
Q Floatable Materials
O Other Construction Wastes
Inlet Protection CC-81
Revised 04/10
iSWMTM Technical Manual Construction Controls
3.4. 1 Primary Use
Inlet protection is typically used as a secondary sediment barrier, due to its limited effectiveness and
numerous disadvantages. It is used to reduce sediment in storm sewer systems by serving as a back-up
system for areas that have newly applied erosion controls or for other sediment controls that cannot
achieve adequate sediment removal by themselves.
Inlet protection may be used as a primary sediment control only when all other primary controls are
infeasible because of site configuration or the type of construction activity.
3.4.2 Applications
Inlet protection is best applied at low point (sump) inlets where stormwater runoff will pond behind the
protection measure, and then either filter through the protection measure or flow over a weir created by it.
Most inlet protection measures depend on ponding to be effective. These types of inlet protection are not
applicable to on-grade curb inlets, where the inlet protection will cause stormwater runoff to bypass the
inlet and overload downstream inlets. Only inlet protection measures that allow for use of the inlet
opening (e.g. inlet inserts)are applicable as inlet protection for on-grade inlets.
Inlet protection is normally used in new developments with new inlets and roads that are not in public use.
It has limited applications in developed areas due to the potential for flooding, traffic safety, pedestrian
safety, and maintenance problems. Potential applications in developed areas are on parking lot inlets
where water can pond without causing damage and during major repairs to existing roadways where no
other controls are viable.
The application of inlet protection is highly variable due to the wide variety of inlet configurations (existing
and new) and site conditions. The schematics in Section 6 show example applications; however,
applications in most cases must be site adapted. Different methods and materials may be used. It is the
responsibility of the designer to ensure that the methods and materials applied for inlet protection are
appropriate to the site and flow conditions following the design criteria in Section 3.
3.4.3 Design Criteria
General
• Drainage patterns shall be evaluated to ensure inlet protection will not divert flow or flood the roadway
or adjacent properties and structures.
• Inlet protection measures or devices that completed block the inlet are prohibited. They must also
include a bypass capability in case the protection measures are clogged.
• Inlet protection must be designed to pass the conveyance storm (25-year, 24-hour)without creating a
road hazard or damaging adjacent property. This may be accomplished by any of the following
measures:
o An overflow weir on the protection measure.
o An existing positive overflow swale on the inlet.
o Sufficient storage volume around the inlet to hold the ponded water until it can all filter into the
inlet.
o Other engineered method.
• Positive overflow drainage is critical in the design of inlet protection. If overflow is not provided for at
the inlet, temporary means shall be provided to route excess flows through established swales,
streets, or other watercourses to minimize damage due to flooding.
• Filter fabric and wire mesh used for inlet protection shall meet the material requirements specified in
Section 3.10 Silt Fence.
Inlet Protection CC-82
Revised 04/10
iSWMTM Technical Manual Construction Controls
• Block and gravel (crushed stone or recycled concrete) protection is used when flows exceed 0.5
cubic feet per second and it is necessary to allow for overtopping to prevent flooding.
• The tube and filler for organic filter tubes shall be in accordance with the criteria in Section 3.6
Organic Filter Tube.
• Bags used to secure inlet protection devices on pavement shall be filled with aggregate, filter stone,
or crushed rock that is less likely than sand to be washed into an inlet if the bag is broken. Filled
bags shall be 24 to 30 inches long, 16 to 18 inches wide, and 6 to 8 inches thick. Bags shall be
polypropylene, polyethylene, or polyamide woven fabric with a minimum unit weight of 4 ounces per
square yard and meet the following criteria:
o Greater than 300 psi Mullen Burst Strength using ASTM D3786 Standard Test Method for
Hydraulic Bursting Strength of Textile Fabrics-Diaphragm Bursting Strength Tester Method.
o Greater than 70 percent UV Stability using ASTM D4355 Standard Test Method for Deterioration
of Geotextiles by Exposure to Light, Moisture, and Heat in a Xenon Arc Type Apparatus.
Curb Inlet Protection
• Municipality approval is required before installing inlet protection on public streets.
• Special caution must be exercised when installing curb inlet protection on publicly traveled streets or
in developed areas. Ensure that inlet protection is properly designed, installed and maintained to
avoid flooding of the roadway or adjacent properties and structures.
• A two inch overflow gap or weir is required on all curb inlet protection devices.
• Traffic cones, warning signs, or other measures shall be installed to warn motorists when the inlet
protection measures extend beyond the gutter line.
• 2 inch X 4 inch Weir Protection:
o Bend wire mesh around the 2 inch x 4 inch board and staple to the board. Bend wire mesh
around the bottom of the board, the curb opening, and along the pavement to form a cage for the
rock.
o Rock bags shall be placed perpendicular to the curb, at both ends of the wooden frame,to disrupt
the flow and direct water into the rock filter. Stack the bags two high if needed.
• Organic Filter Tube Protection:
o The diameter of the tube shall be at least 2 inches less than the height of the inlet opening. The
tube should not be allowed to block the entire opening, since it will clog.
o The tube shall be placed on 4 inch x 4 inch or 2 inch x 4 inch wire mesh to prevent the tube
from sagging into the inlet.
o The tube should be long enough to extend a minimum of 12 inches past the curb opening on
each side of the inlet.
• Hog Wire Weir Protection:
o The filter fabric and wire mesh shall extend a minimum of 12 inches past the curb opening on
each side of the inlet.
o Filter fabric shall be placed on 2 inch x 4 inch wire mesh to prevent the tube from sagging into the
inlet.
o Rock bags are used to hold the wire mesh and filter fabric in contact with the pavement. At least
one bag shall be placed on either side of the opening, parallel to and up against the concrete
curb. The bags are in intended to disrupt and slow the flow and ensure it does not go under the
fabric. Add bags if needed.
Inlet Protection CC-83
Revised 04/10
iSWMTM Technical Manual Construction Controls
o If a board is used to anchor the wire mesh and fabric instead of rock bags, the board shall be
secured with concrete nails at 3 inches on center. Upon removal clean any dirt or debris from the
nailing locations, apply chemical sanding agent, and apply non-shrink grout flush with surface of
concrete.
• Block and Gravel Protection:
o Concrete blocks shall be standard 8 inch x 8 inch x 16 inch concrete masonry units and shall be
in accordance with ASTM C139, Concrete Masonry Units for Construction. Filter gravel shall be
3/4 inch washed stone containing no fines. Angular shaped stone is preferable to rounded shapes.
o Concrete blocks are to be placed on their sides in a single row around the perimeter of the inlet,
with ends abutting. Openings in the blocks should face outward, not upward. 1/2 inch x 1/2 inch
wire mesh shall then be placed over the outside face of the blocks covering the holes. Filter
gravel shall then be piled against the wire mesh to the top of the blocks with the base of the stone
being a minimum of 18 inches from the blocks.
o Alternatively, where loose stone is a concern (streets, etc.), the filter gravel may be placed in
appropriately sized filter fabric bags.
o Periodically, when the gravel filter becomes clogged, the gravel must be removed and cleaned in
a proper manner or replaced with new gravel and piled back against the wire mesh.
• Organic Filter Tube On-Grade Protection:
o Organic filter tubes may be used to provide sediment control at on-grade curb inlets where the
tube will not be a traffic hazard, such as on residential streets where the pavement adjacent to
the curb is allocated to parked cars. Tubes should not be used in this manner where they will
extend into an active travel lane.
o The filter tube shall be secured in a U-shape by rock bags. Runoff flowing in the gutter will pond
within the U until it filters through the tube or overflows around the end.
• Inlet protection shall be phased on curb inlets being constructed. Controls shall be installed on the
pipe inlet at the bottom of the catch basin as soon as it is installed and while the inlet box and top are
being formed or placed.
Area Inlet Protection
• Installation methods for protection on area inlets vary depending on the type of inlet (drop, "Y," or
other) and the type and use of the surface surrounding the inlet (parking lot, playground, etc.). It is
the responsibility of the designer to appropriately adapt inlet protection measures and their installation
methods for each site condition. Several types may be needed on one project.
• Filter Fabric Protection:
o Filter fabric protection is appropriate where the drainage area is less than one acre and the basin
slope is less than five (5) percent. Filter fabric, posts, and wire mesh shall meet the material
requirements specified in Section 3.10 Silt Fence.
o A 6 inch wide trench is to be cut 6 inches deep at the toe of the fence to allow the fabric to be laid
below the surface and backfilled with compacted earth or gravel. This entrenchment prevents
any bypass of runoff under the fence.
o Stone overflow structures, according to the criteria in Section 3.10 Silt Fence shall be installed
where flow to the inlet is concentrated and more than 1 cubic feet per second.
• Excavated Impoundment Protection:
o Excavated inlet protection is usually the most effective type of area inlet protection; however, it is
only applicable to drop inlets. It should not be applied to Y inlets because it will undermine the
concrete pad surrounding the inlet opening. Nor can it be used for inlets on pavement.
Inlet Protection CC-84
Revised 04/10
iSWMTM Technical Manual Construction Controls
o With this protection method, it is necessary to install weep holes to allow the impoundment to
drain completely.
o The impoundment shall be sized such that the volume of excavation is equal to or exceeds the
runoff volume from the temporary control design storm (2-year, 24-hour) for the inlet's drainage
area.
o The trap shall have a minimum depth of one foot and a maximum depth of 2 feet as measured
from the top of the inlet and shall have side slopes of 2:1 or flatter.
• Block and Gravel Protection:
o Block and gravel inlet protection is the most stable area inlet protection and can handle more
concentrated flows. It may be installed on paved or vegetated surfaces. Loose stone shall be
carefully removed from vegetated surfaces at the end of construction to prevent the stone from
becoming a mowing hazard.
o The inlet protection may be one or two blocks high. Single block heights are applicable for
drainage areas up to 3 acres in size. The double block height shall be used for larger drainage
areas.
o Concrete blocks shall be standard 8 inch x 8 inch x 16 inch concrete masonry units and shall be
in accordance with ASTM C139, Concrete Masonry Units for Construction. Filter gravel shall be
3/4 inch washed stone containing no fines. Angular shaped stone is preferable to rounded shapes.
• Organic Filter Tube Protection:
o Organic filter tubes may be used on paved or unpaved surfaces.
o On paved surfaces, tubes shall be secured in place by rock bags. On unpaved surfaces, the
tubes shall be embedded in the ground a minimum of 3 inches and staked at 4 foot spacing.
o Designer shall provide calculations and specify the diameter of tube to be used based on the
inlet's drainage area and the flow rate of runoff to the inlet. The minimum allowable diameter is
12 inches.
Proprietary Inlet Protection
• Numerous proprietary protection devices are available from commercial vendors. The devices often
have the advantage of being reusable on several projects if they are maintained in good condition.
• It is the policy of this manual not to recommend any specific commercial vendors for proprietary controls.
However, this subsection is included in order to provide municipalities with a rationale for approving the
use of a proprietary inlet protection device within their jurisdiction.
• The designer shall work with the supplier to provide the municipality with flow calculations or
independent third-party tests that document the device's performance for conditions similar to the
ones in which it is proposed to be installed. The conditions that should be considered include: type
and size of inlet, inlet configuration, size of contributing drainage area, design flow rate, soil particle
sizes to be removed, and other pollutants to be removed.
• The designer or vendor of the proprietary device shall provide a minimum of three references for
projects where the device has been installed and maintained in operation at a construction site for at
least six months. Local references are preferred; but references from other regions can be accepted
if a similarity between the reference project and the proposed application can be demonstrated.
• Proprietary devices must not completely block the inlet. The device shall have a minimum of a 2 inch
wide opening for the length of the inlet when it will be used in areas that water can safely pond to
depths deeper than the design depths for the inlet. If ponding is not an option, then the device must
have overflow capacity equal to the inlet design flow rate.
• Some proprietary devices are available with replaceable pads or filters. These pads or filters have
the added benefit or removing pollutants such as metals and oils in addition to removing sediment.
Inlet Protection CC-85
Revised 04/10
iSWMTM Technical Manual Construction Controls
These types of inserts are recommended in applications where prior or current land use in or adjacent
to the construction areas may result in the discharge of pollutants.
• Proprietary protection devices shall be in accordance with the General criteria at the beginning of this
section and any criteria listed under Curb Inlet Protection and Area Inlet Protection that are not
specific to an inlet protection method.
3.4.4 Design Guidance and Specifications
Specifications for construction of this item may be found in the Standard Specifications for Public Works
Construction—North Central Texas Council of Governments, Section 201.15 Inlet Protection.
3.4.5 Inspection and Maintenance Requirements
Inlet protection should be inspected regularly (at least as often as required by the TPDES Construction
General Permit). Inlet controls should also be inspected after every storm event to check for collapse into
the inlet or other damages that may block flow in the inlet. In addition to routine inspection, inlet
protection devices should be observed and monitored during larger storm events to verify that they are
not ponding or diverting water in a manner that floods a roadway or damages property.
Floatable debris and other trash caught by the inlet protection should be removed after each storm event.
Sediment should also be removed from curb inlet protection after each storm event because of the limited
storage area associated with curb inlets.
Sediment collected at area inlet protection should be removed before it reaches half the height of the
protection device. Sediment should be removed from inlets with excavated impoundment protection
before the volume of the excavation is reduced by 50 percent. In addition, the weep holes should be
checked and kept clear of blockage.
Concrete blocks, 2 inch x 4 inch boards, stakes, and other materials used to construct inlet protection
should be checked for damaged and repaired or replaced if damaged.
When filter fabric or organic filter tubes are used, they should be cleaned or replaced when the material
becomes clogged. For systems using filter stone, when the filter stone becomes clogged with sediment,
the stones must be pulled away from the inlet and cleaned or replaced.
Because of the potential for inlet protection to divert runoff or cause localized flooding, remove inlet
protection as soon as the drainage area contributing runoff to the inlet is stabilized. Ensure that all inlet
protection devices are removed at the end of the construction.
3.4.6 Example Schematics
The following schematics are example applications of the construction control. They are intended to
assist in understanding the control's design and function.
The schematics are not for construction. They may serve as a starting point for creating a construction
detail, but they must be site adapted by the designer. In addition, dimensions and notes appropriate for
the application must be added by the designer.
Inlet Protection CC-86
Revised 04/10
iSWMTM Technical Manual Construction Controls
WIRE MESH INSTALLATION PROCESS
PLACE FILTER
STONE AFTER WEIR
CONSTRUCTION WRAP 1 Az x 12'WIRE
MESH AROUND 7 X 4'
WEIR BEFORE
INSTALLING ANCHOR
x 4•WEIR WANDS 2' 2`MINIMUM LENGTH 2"X 4"
7X4-SUPPORT ANCHOR BOARD
ROCK BAG OR
3/4"FILTER STONE ALTERNATE WEIGHT
WIRE MESH(1/2"X 1/2")
Obi. 4.6020 .67.ta
\ sr..rA ■ \/�
\ yy .,.., CURB INLET A/�
2"X 4"WEIR (,\/f\ X
2•X 4"SUPPORT A:A\ CATCH BASIN 2
2"X 4"WEIR CURB INLET PROTECTION CROSS SECTION
N.T.S.
ROCK BAG TO 2"X 4"WEIR
PREVENT FLOW UNDER 2'MINIMUM LENGTH
THE WIRE MESH '4444-1 .1/ 2"X 4"ANCHOR
-*4
•s..• BOARD
.. ..av 2'OPENING
WIRE MESH(1/2"X 1/2") •• •
V '?e' BETWEEN 2"X4"
yi +"7?',i W, WEIR BOARD AND TOP OF INLET BOX
'44,;::::::::.-,1.,I CURB INLET
•■• "I', ROCK BAG OR
3/4"FILTER STONE + . :_` ALTERNATE WEIGHT
l..s..e
blt... fr
s,,,.
,
WIRE MESH WRAPPED CURB
OVER AND SECURED
TO 2"X 4"BOARD
2"X 4"WEIR CURB INLET PROTECTION PLAN VIEW
N.T.S.
NOTE: THIS CONTROL WILL DECREASE THE CAPACITY OF THE INLET. IT SHALL ONLY BE USED WHEN AN
ENGINEER HAS DETERMINED THERE IS ADEQUATE STORAGE OR POSITIVE OVERFLOW.
Figure 3.5 Schematics of 2"x4"Weir Curb Inlet Protection
(Source:Modified from Washington Suburban Sanitary Commission Detail SC-16.0)
Inlet Protection CC-87
Revised 04/10
iSWMTM Technical Manual Construction Controls
12•
ORGANIC FILTER TUBE
(DIA=2"LESS THAN INLET OPENING)
r\/T\/�\//\
1 CURB INLET \j j,
/ \
4"X 4"WELDED WIRE FABRIC
,\, CATCH BASIN
ORGANIC FILTER TUBE CURB INLET PROTECTION CROSS SECTION
N.T.S.
}-�12'
4"X4"WELDED WIRE FABRIC `;i'X. A:
I!ie JjJjij[i1; TOP OF INLET BOX
.*.O!1 :AO
i•6 ►.S• .. •'
�ii•*1 s 4',
cott 4.44:4:m
4 CO
ORGANIC FILTER TUBE(EXTEND
12" BEYOND END OF CURB'
OPENING ON BOTH SIDES) CURB
ORGANIC FILTER TUBE CURB INLET PROTECTION PLAN VIEW
N.T.S.
NOTE: THIS CONTROL WILL DECREASE THE CAPACITY OF THE.INLET. IT SHALL ONLY BE USED WHEN AN
ENGINEER HAS DETERMINED THERE IS ADEQUATE STORAGE OR POSITIVE OVERFLOW.
Figure 3.6 Schematics of Organic Filter Tube Curb Inlet Protection
(Source:Modified from City of Plano BMP SP-4)
Inlet Protection CC-88
Revised 04/10
iSWMTM Technical Manual Construction Controls
SECURE FILTER FABRIC
TO HOGWIRE AT 2"BELOW ROCK BAG OR USE 1'X 4"BOARD
TOP OF INLET OPENING SECURED WITH CONCRETE NAILS O.C.
(SEE DESIGN CRITERIA)
FILTER FABRIC taNe
CURB INLET \j\
2'X4'-WIRE MESH \ CATCH BASIN
HOG WIRE WEIR CURB INLET PROTECTION CROSS SECTION
—1? N.T.S.
ROCK BAG OR USE 1'X 4'BOARD
°nS y av SECURED WITH CONCRETE NAILS O.C.
P♦b ►♦♦','• s (SEE DESIGN CRITERIA)
12"MIN .°�ti4♦ '
1.4 Vitt'^i°ii'•° i♦ice''i°@6
2"X 4'WIRE MESH AND FILTER .°°i`♦ °t �p1.♦°°♦.0e,0s4°�
FABRIC.(LEAVE 2"OPENING �i♦i°i° ori+�♦° 0°♦se,°�♦�i, TOP OF INLET BOX
FROM TOP OF INLET OPENING p 4131:$♦s°,�°t!O
TO TOP OF FILTER FABRIC) 440; x° ;4y'r`♦4'
3°eg o a°i!°°�"�� 2"X 4'WIRE MESH
ROCK BAG TO PREVENT yy�°�� ±°°�%i4°py♦�►°�40f
FLOW UNDER THE HOG WIRE .4. !.tsiLa00i*404♦+0;
X::;;;1�♦e
I,�i v 3�0 s••:::::41:0 4`0
+��a►�
.t i!♦ei�di ONLY THE WIRE MESH
♦♦�s_0 Os amp EXTENDS TO TOP OF INLET
SECURE FILTER h ♦4,4:�:►se4'4„
.��. TO SECURE THE CONTROL
FABRIC TO WIRE WITH
CLIPS OR HOGRINGS CURB
HOG WIRE WEIR CURB INLET PROTECTION PLAN VIEW
N.T.S.
NOTE: THIS CONTROL WILL DECREASE THE CAPACITY OF THE INLET. IT SHALL ONLY BE USED WHEN AN
ENGINEER HAS DETERMINED THERE IS ADEQUATE STORAGE OR POSITIVE OVERFLOW.
Figure 3.7 Schematics of Hog Wire Weir Curb Inlet Protection
(Source:Modified from City of Round Rock Detail E-03)
Inlet Protection CC-89
Revised 04/10
iSWMT"Technical Manual Construction Controls
18"
M`N
CONCRETE BLOCK
3/4'FILTER STONE ® o RE&
she ! 11110 V`,•Y
147' •.„ CURB INLET :®
WIRE MESH
PLACED OVER 'e
VERTICAL 5�
VERTICAL FA \
2"X 4"WOOD STUD ®®›�
`!� CATCH BASIN
BLOCK AND GRAVEL FILTER CURB INLET PROTECTION CROSS SECTION
N.T.S.
.:e+la
f•, �+ :+�.• CONCRETE BLOCK
• - • a
3/4'FILTER STONE it•�e _e�e�Ze!!
�. .ISNle, In I
ovir
ewe eV;
s1
rIltAttO
WIRE MESH(1/2""X 1/2") Slore •
PLACED OVER TOP OF INLET BOX
VERTICAL FAC a a+e•
r 0•
ilwffliffjpip
e`'e
Altar.
op.-4).w
.s
2"X 4"WOOD STUD ® -e®e `Yi y-`CURB
itaillV4
ses
w. S ,w
Ir--mow
NV,10 01.0 •
■411,:t11111•;NIP e•
BLOCK AND GRAVEL FILTER CURB INLET PROTECTION PLAN VIEW
N.T.S.
NOTES: 1. DO NOT INSTALL ON INLETS IN A PUBLIC STREET OR OTHER ACTIVE TRAVEL LANE. BLOCK AND
GRAVEL FILTER IS INTENDED FOR USE ON LOW POINT(SUMP)INLETS IN PARKING LOTS AND
OTHER PAVEMENT THAT IS NOT AN ACTIVE TRAVEL LANE. THIS INLET PROTECTION METHOD
ALLOWS FOR FULL USE OF THE INLET DESIGN CAPACITY.
2. INSTALL TRAFFIC CONES AS NEEDED TO MINIMIZE THE POTENTIAL FOR CARS HITTING THE
BLOCK AND GRAVEL.
Figure 3.8 Schematics of Block and Gravel Filter Curb Inlet Protection
Inlet Protection CC-90
Revised 04/10
iSWMTM Technical Manual Construction Controls
TOP OF INLET BOX
ORGANIC FILTER TUBE '
(9"MINIMUM DIA.) ///////
r//fr
/
f'/ 7-CURB
i
iSWMTM Technical Manual Construction Controls
ATTACH FILTER TOP BOARD FOR STABILITY
FABRIC SECURELY TO
2"x 4"WIRE FENCE
2"X 4'WOOD POST
fMe��e.e 0440:44 KO �.�oei FABRIC ANCHORED IN
18'MAX. .:..4ee� 4" ♦ees
epa,�oepeee�e�eee�e�a 6"x6'TRENCH BACKFILLED
,�r�e,� ''w-•- `O• WITH COMPACTED EARTH
38 MAX. \ es. rev'
12-MIN. /js . F "Y" \ _, /\j/
\! 1.\'� INLET.. \ ��\^
FILTER FABRIC"r INLET PROTECTION CROSS SECTION
N.T.S.
ATTACH FILTER TOP BOARD FOR STABILITY
FABRIC SECURELY TO r
i1
2"x 4"WIRE FENCE
2"X 4'WOOD POST
Fee44,:;•444.� FABRIC ANCHORED IN
18 MAX. i'e i 6"x6"TRENCH BACKFILLED
%o we 444:� WITH COMPACTED EARTH
36'M _ 'Re'Oee4e4+:4
i0eees00✓Oeeeei
12"MIN. ! /`/%/ �w p ,,,,i,:\\//\\/ Y�/\7
\ DROP� 0 r. �! .
FILTER FABRIC DROP INLET PROTECTION CROSS SECTION
N.T.S.
FILTER FABRIC /
2"X 4`WOOD POST
d�00����U�-'�QRAIN GRATE
00000000011
2"X 4"WIRE
Jig —` BACKING
\— BACKI NG
FILTER FABRIC AREA INLET PROTECTION PLAN VIEW
N.T.S.
NOTES: 1.CONCENTRATED DITCH FLOW COMING FROM ONE OR MORE SIDES TOWARD THE INLET
MAY REQUIRE A STONE OVERFLOW STRUCTURE TO BE CONSTRUCTED ON ONE SIDE OF
THE INLET(SEE SECTION 3.10 SILT FENCE).
2.POSTS SHALL BE INSTALLED AT EACH CORNER AND BETWEEN CORNERS IF THE
DISTANCE IS GREATER THAN 6'BETWEEN CORNER POSTS.
Figure 3.10 Schematics of Filter Fabric Area Inlet Protection
(Source:City of Plano BMP SP-4)
Inlet Protection CC-92
Revised 04/10
iSWMTM Technical Manual Construction Controls
EXCAVATED AREA=DESIGN
STORM VOLUME OR 3,600 CF
PER ACRE DISTURBED
FILTER STONE(1/2"X1/7)
FOR COVERING WEEP HOLES
Y\\� 2:1 MAX SLOPE
• /r\
r MIN, / >7\\\�\��\\!
v' v� i /tom
Z MAX / iS
�. DROP �. /�vr\Y/\\i \/
\ �i\\3\\� V INLET ''\ \i/\�\\ \if
1"DIA.WEEP HOLES,TO BE FILLED WITH
GROUT PRIOR TO BACKFILLING OF STORAGE
AREA
EXCAVATED IMPOUNDMENT DROP INLET PROTECTION CROSS SECTION
N.T.S.
1 1/2"FILTER STONE
.041 . DROP INLET GRATE
Van
FLOW � � U ,® FLOW
op fill nrinnim Fpt
;19 ►
litatOsilltsfattoP
EXCAVATED IMPOUNDMENT AREA INLET PROTECTION PLAN VIEW
N.T.S.
Figure 3.11 Schematics of Excavated Impoundment Area Inlet Protection
Inlet Protection CC-93
Revised 04/10
iSWMTM Technical Manual Construction Controls
112'x 112' ;'MIN. 8"MIN. CONCRETE BLOCKS
WIRE SCREEN , (2 HIGH MAX.)
;��/ //:®+ 1 1/2"FILTER STONE
FLOW .10. ,
I i, ' ki*._ —FLOW
LESS
5%SLOPE Y 18"
INLET MIN
BLOCK AND GRAVEL"Y"INLET PROTECTION CROSS SECTION
N.T.S.
1/T x 112' CONCRETE BLOCKS
WIRE SCREEN
SM;. ! 1 1/2"FILTER STONE
FLOW if' Va.**M 1�. ,ji,. "'FLOW
LESS THAN�'T�ji%/.�i%.ii •
5%SLOPE DROP ° 113"
INLET , MIN
BLOCK AND GRAVEL DROP INLET PROTECTION CROSS SECTION
N.T.S.
1 112"FILTER STONE
1/2'x 1/2'
FLOW _,-a.;e-`v- .P1, WIRE SCREEN
II j DROP INLET
I i GRATE
1l!111111I8 ;
•` CONCRETE
,10;111040011111 1-
_ %e BLOCKS
uOOP . .A of
~�FLOW
BLOCK AND GRAVEL AREA INLET PROTECTION PLAN VIEW
N.T.S.
Figure 3.12 Schematics of Block and Gravel Area Inlet Protection
(Source:Modified from City of Plano BMP SP-4)
Inlet Protection CC-94
Revised 04/10
iSWMTM Technical Manual Construction Controls
SEE EMBEDMENT DETAIL
t
-. \ / ' �" R \ /\' f} AV/ /TV i ` S A ///lfL
'>7 �
\//%'% • I ENLT:. \/,./\\/
..L-111,.-- -7<''
ORGANIC FILTER TUBE"Y"INLET PROTECTION CROSS SECTION
N.T.S.
SEE EMBEDMENT DETAIL 0i`
<\/\%i\'"\/�/}yid ' DROP 2'Y.\\Y''\\�`/'}i
INLET . . 7
ORGANIC FILTER TUBE DROP INLET PROTECTION CROSS SECTION
N.T.S.
Ok,\
/
ORGANIC FILTER TUBE 1 I l DRAIN GRATE
(12"MINIMUM DIAMETER) III ry������nr/l 1
U ul 2X2"WOOD STAKES
l t l Inn 'Yl MAX 4'SPACING
111 i
i- 1 12"MIN.OVERLAP
ORGANIC FILTER TUBE AREA INLET PROTECTION PLAN VIEW
N.T.S.
ORGANIC FILTER TUBE 2"x 2`WOOD STAKES MAX 4'SPACING
(12"MINIMUM DIA) (EXTEND 2"MAX ABOVE TOP OF TUBE)
SLOPE eI I VARIES
,m'-� 4 ,,),, 9"MINIMUM
)�J-e 3"EMBEDMENT MINIMUM
—I I h 12'MINIMUM
EMBEDMENT EXAMPLE FOR ORGANIC FILTER TUBE
N.T.S.
Figure 3.13 Schematics of Organic Filter Tube Area Inlet Protection
Inlet Protection CC-95
Revised 04/10
MAJOR CONSTRUCTION ACTIVITIES LOG
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
MATERIALS STORED ONSITE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
PROJECT TRANSFER OF OWNERSHIP LOG
1.
2.
3.
4.
5.
6.
7.
Emergency Contact List
Police/Fire/Medical Emergency: 911
Coppell Fire Department (972)304-3531
Coppell Police Department: (972)304-3600
Texas Spill Reporting Hotline: 1 (800) 832-8224
National Spill Response Center: 1 (800) 424-8802
RKM Utility Services, Inc.: (972)241-2621
SPILL EMERGENCY
MOCKINGBIRD LANE RECONSTRUCTION PROJECT
ALL CHEMICALS MUST BE STORED OFF THE GROUND. STORE CHEMICAL CONTAINERS
ON A PALLET IN AN AREA WHERE IT IS SAFE FROM VEHICLE AND FOOT TRAFFIC.
ALL CHEMICALS MUST BE CLEARLY LABELED. AN UNIDENTIFIED CHEMICAL CAN BE A
MAJOR SAFETY HAZARD IF SPILLED.
Chemicals, paints, solvents, fertilizers, and other toxic materials shall be labeled and stored
in waterproof containers. Except during application, the containers shall be kept in trucks
or within storage facilities. Runoff containing such materials shall be collected, removed
from the site, and disposed of at an approved solid waste or chemical disposal facility.
IF THERE IS A SPILL CALL - HAROLD SWANN
RKM UTILITY
972-241-2621