Texas Department of Transportation Stormwater Management Program

Transcription

1 Stormwater Management Program Municial Searate Storm Sewer System (MS4) Permit Number WQ Texas Deartment of Transortation Environmental Affairs Division 125 East 11th Street Austin, Texas (512) Fax (512) gui

2 Texas Deartment of Transortation Municial Searate Storm Sewer System Stormwater Management Program Table of Contents INTRODUCTION... 1 PURPOSE OF THE SWMP MCM 1 - Public Education, Outreach, and Involvement Permit Requirements Program Overview Public Education, Outreach, and Involvement Best Management Practices and Measurable Goals Don t Mess with Texas Program Adot a Highway Program Texas Trash-Off Program Texas Highways Magazine TxDOT s Webage Education of Construction Site Personnel Education of Herbicide Alication Personnel BMP Imlementation Schedule, Activity, and Measurable Goals MCM 2 ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE) Permit Requirements Program Overview Program Develoment Allowable Non-Stormwater Discharges MS4 Areas Maing Education and Training Public Reorting of Illicit Discharges and Sills Sill Prevention and Resonse Source Investigation and Elimination Insections Additional Requirements for Previous Phase I Permitted Areas Additional Requirements for Previous TxDOT Austin District Phase I Permit (WQ ) Best Management Practices and Measurable Goals ii

3 2.3.1 Program Develoment Allowable Non-Stormwater Discharges MS4 Areas Maing Education and Training Public Reorting of Illicit Discharges and Sills Sill Prevention and Resonse Source Investigation and Elimination Insections Additional Requirements for Previous Phase I Permitted Areas Additional Requirements for Previous TxDOT Austin District Phase I Permit (WQ ) BMP Imlementation Schedule, Activity, and Measurable Goals MCM 3 - CONSTRUCTION SITE STORMWATER RUNOFF CONTROL Permit Requirements Program Overview Requirements and Control Measures SWMP Udate Imlementation of Erosion and Sediment Control BMPs Prohibited Discharges Construction Plan Review Procedures Construction Site Insections and Enforcement Information Submitted by the Public MS4 Staff Training Additional Requirements for Previous Phase I Permitted Areas Best Management Practices and Measurable Goals Requirements and Control Measures SWMP Udate Imlementation of Erosion and Sediment Control BMPs Prohibited Discharges Construction Plan Review Procedures Construction Site Insections and Enforcement Information Submitted by the Public MS4 Staff Training Additional Requirements for Previous Phase I Permitted Areas BMP Imlementation Schedule, Activity, and Measurable Goals iii

4 4.0 MCM 4 - POST-CONSTRUCTION STORMWATER MANAGEMENT IN AREAS OF NEW DEVELOPMENT AND REDEVELOPMENT Permit Requirements Program Overview Program Develoment Ordinances and Other Regulatory Mechanisms SWMP Udate Documentation and Records Long-term Oeration and Maintenance Best Management Practices and Measurable Goals Program Develoment Ordinances and Other Regulatory Mechanisms SWMP Udate Documentation and Records Long-term Oeration and Maintenance BMP Imlementation Schedule, Activity, and Measurable Goals MCM 5 - POLLUTION PREVENTION AND GOOD HOUSEKEEPING FOR TRANSPORTATION OPERATIONS Permit Requirements Program Overview Program Develoment TxDOT-Owned Facilities and Control Inventory Training and Education Disosal of Waste Material Contractor Requirements and Oversight Roadway Oeration and Maintenance Activities Structural Control Maintenance Additional Requirements for Previous Phase I Permitted Areas Best Management Practices and Measurable Goals Program Develoment TxDOT-Owned Facilities and Control Inventory Training and Education Disosal of Waste Material Contractor Requirements and Oversight Roadway Oeration and Maintenance Activities Structural Control Maintenance iv

5 5.3.8 Additional Requirements for Previous Phase I Permitted Areas BMP Imlementation Schedule Activity, and Measurable Goals MONITORING AND EVALUATION Permit Requirements Program Overview Best Management Practices and Measurable Goals Dry weather screening Evaluation of water quality Floatables Monitoring Monitoring and Evaluation Imlementation Schedule Activity, and Measurable Goals IMPAIRED WATER BODIES AND TOTAL MAXIMUM DAILY LOAD (TMDL) REQUIREMENTS Permit Requirement Program Overview Best Management Practices and Measurable Goals Discharges to Water Quality Imaired Water Bodies with an Aroved TMDL Discharges Directly to Water Quality Imaired Water Bodies Without an Aroved TMDL DISCHARGES TO THE EDWARDS AQUIFER RECHARGE ZONE Permit Requirement Imlementation Overview Best Management Practices (BMP) and Measurable Goals TxDOT Agency Aroved WPAP TxDOT Agency Aroved WPAPs Discharges to the Edwards Aquifer Recharge Zone Imlementation Schedule Activity, and Measurable Goal EXPENDITURES Permit Requirements Program Overview Best Management Practices and Measurable Goals Exenditures Imlementation Schedule Activity, and Measurable Goal OTHER REQUIREMENTS Permit Requirements Program Overview Best Management Practices and Measurable Goals Other Requirements Imlementation Schedule Activity, and Measurable Goals v

6 11.0 LEGAL AUTHORITY RESOURCES SWMP REVIEW AND UPDATES RECORDKEEPING Permit Requirements Program Overview Best Management Practices and Measurable Goals Recordkeeing Imlementation Schedule Activity, and Measurable Goal REFERENCES Tables Table MCM 1 BMP Imlementation Schedule, Activity, and Measurable Goals Table MCM 2 BMP Imlementation Schedule, Activity, and Measurable Goals Table Leading to a Classification of "Unlikely Illicit Discharge." Table Leading to a Classification of "Potential Illicit Discharge." Table Leading to a Classification of "Susect Illicit Discharge." Table Leading to a Classification of Obvious Illicit Discharge. Table MCM 3 BMP Imlementation Schedule, Activity, and Measurable Goals Table MCM 4 BMP Imlementation Schedule, Activity, and Measurable Goals Table MCM 5 BMP Imlementation Schedule, Activity, and Measurable Goals Table Monitoring and Evaluation Imlementation Schedule, Activity, and Measurable Goals Table Imaired Water Bodies and Total Maximum Daily Load (TMDL) Requirements Imlementation Schedule, Activity, and Measurable Goals Table Existing Aroved Bacteria TMDLs and Imlementation Plans With BMPs Table Analyses of TxDOT MS4 Discharging Directly Into Imaired Water Bodies Table Pollutant of Concern (POC)*, Targeted Controls, Benchmark Goals and Imlementation Schedules Table Discharges to the Edwards Aquifer Recharge Zone Imlementation Schedule, Activity, and Measurable Goals Table Exenditures Imlementation Schedule, Activity, and Measurable Goals Table Other Requirements Imlementation Schedule, Activity, and Measurable Goals Table Recordkeeing Imlementation Schedule, Activity, and Measurable Goals vi

7 Figures Figure Outfall Field Insection Work Flow Diagram and Classification Scheme Figure Edwards Aquifer Recharge Zone Figure TxDOT Agency Aroved WPAPs Attachments Attachment A - TCEQ/TxDOT MOU Attachment B TXDOT TRAINING CLASSES Attachment C TCEQ REGIONAL OFFICES Attachment D - ALLOWABLE NON-STORMWATER DISCHARGES Attachment E ENV ITEM 303 Attachment F ENV ITEM 340 Attachment G UTILITY INSTALLATION REQUEST FORM Attachment H - TxDOT EMS STAGEGATE CHECKLISTS Attachment I AGENDA FOR PRE-CONSTRUCTION CONFERENCE Attachment J - FACILITY ENVIRONMENTAL COMPLIANCE SURVEY CHECKLIST Attachment K TMDL BMP FLOW CHART vii

8 ACRONYMS AE Area Engineer AOTS Advanced Outfall Tracking System AP&D Advanced Planning and Develoment (referred to in Attachment H) BMP Best Management Practice BPT Best Practicable Control Technology CDA Comrehensive Develoment Agreement CGP Construction General Permit CSN Construction Site Notice CWA - Clean Water Act CZ Contributing Zone CZP - Contributing Zone Abatement Plan DEQC District Environmental Quality Control DWR (referred to in Attachment H) EA Environmental Assessment EMS Environmental Management System ENV TxDOT Environmental Affairs Division EPIC Environmental Permits, Issues and Commitments Sheet FHWA Federal Highway Administration GI Green Infrastructure GPS Global Positioning System IDDE Illicit Discharge Detection and Elimination I-Plan- Imlementation Plans IWB Imaired Water Body LID Low Imact Develoment LPST Leaking Petroleum Storage Tanks MCM Minimum Control Measures MEP Maximum Extent Practicable MOU Memorandum of Understanding MS4 Municial Searate Storm Sewer System NEPA National Environmental Policy Act NOC Notice of Change NOI Notice of Intent viii

9 NOT Notice of Termination OCC TxDOT Occuational Safety Division O&M Oeration and Maintenance PFC Permeable Friction Course POC Pollutant of Concern PS&E Plans, Secifications and Estimates PSA Public Service Announcement RAP Reclaimed Ashalt Pavement ROW Right-of-Way RP Resonsible Party RZ Recharge Zone SPCC Sill Prevention Control and Countermeasure SWAT - Stormwater Advisory Team SWMP Stormwater Management Program SWP3 Stormwater Pollution Prevention Plan TAC - Texas Administrative Code - To be determined TCEQ Texas Commission of Environmental Quality TDA Texas Deartment of Agriculture TIP Transortation Imrovement Program TMDL Total Maximum Daily Load TPDES Texas Pollutant Discharge Elimination System TSS Total Susended Solids TxDOT Texas Deartment of Transortation UA Urbanized Area WPAP - Water Pollution Abatement Plan WUS Waters of the United States ix

10 INTRODUCTION The Texas Deartment of Transortation (TxDOT) has develoed this Stormwater Management Program (SWMP) in accordance with the requirements of the Texas Commission on Environmental Quality (TCEQ), Texas Pollutant Discharge Elimination System (TPDES) Municial Searate Storm Sewer System (MS4) ermit WQ The urose of the SWMP is to describe the Minimum Control Measures (MCM) and Best Management Practices (BMPs) for imlementation of secific rograms, controls, and activities with the intent of reducing the otential discharge of ollutants from the MS4 that could reach Waters of the United States (WUS). This document resents TxDOT s SWMP for TPDES Permit No. WQ for the following 22 TxDOT districts: District 1 Paris District 2 Fort Worth District 3 Wichita Falls District 4 Amarillo District 5 Lubbock District 6 - Odessa District 7 San Angelo District 8 Abilene District 9 Waco * District 10 Tyler District 12 Houston District 13 Yoakum District 14 Austin District 15 San Antonio District16 Corus Christi District 17 Bryan District 18 Dallas District 19 Atlanta District 20 Beaumont District 21 Pharr District 22 Laredo District 24 El Paso * A small ortion of the Killeen UA extends into Lamasas. The Waco District will imlement and reort BMP activities for this art of the MS4. It is the intent of TxDOT to develo and imlement a comrehensive SWMP that establishes measurable goals, oversight, and enforcement, to comly with Permit No. WQ As vital comonents to achieving and maintaining comliance, TxDOT has established the following: A Division of Environmental Affairs to oversee and coordinate all environmental olicy and related issues, including water quality; A multi-discilinary MS4 Stormwater Advisory Team (SWAT). The MS4-SWAT reresents various divisions and districts within TxDOT who have been given the task of coordinating, reviewing, and develoing guidelines and olicies related to stormwater management, including the TPDES requirements; A "Memorandum of Understanding" (MOU) with TCEQ (see Attachment A). The MOU with TCEQ has been entered into with TxDOT outlining, among other things, a coordination rocedure allowing for the TCEQ to review and comment on TxDOT's environmental assessments reared for roadway rojects early in the roject develoment stages; An extensive research roject with the University of Texas Center for Transortation Research. The research was erformed to secifically study highway runoff and the effectiveness of certain control measures. This research showed grassy swales to be effective at reducing runoff volumes and ollutant concentrations; 1

11 Environmental Management System (EMS). TxDOT s EMS rogram ensures comliance with environmental requirements related to road construction. Through the EMS rogram, TxDOT strives to increase environmental rotection, reduce otential violations, imrove relationshis and interaction with regulatory agencies and the ublic, and minimize risk to roject budgets and schedules that may result from otential environmental non-comliance. The EMS Team Leaders consist of knowledgeable and exerienced ersonnel who work closely with District staff to ensure regulatory comliance; and, TxDOT s Don t Mess with Texas camaign and Adot-a-Highway rogram. These rograms educate the ublic on how to kee ollutants from our water, and rovide oortunities for grous and/or individuals to articiate in keeing our waters clean. 2

12 PURPOSE OF THE SWMP This SWMP includes the statewide and district-secific ollution revention measures, treatment or ollutant removal techniques, stormwater monitoring, use of legal authority, and other aroriate means to control the quality of stormwater discharged from the TxDOT MS4 to the Maximum Extent Practicable (MEP). These rogram requirements are resented as secified in TxDOT s TPDES Permit, while resenting sulemental information to further define TxDOT s rogram. The rogram incororates measurable goals, whenever racticable, and includes controls necessary to effectively rohibit the discharge of nonstormwater into the MS4. The SWMP covers the term of the ermit and is udated as necessary to ensure comliance. This document is the required SWMP for areas of the state subject to TPDES MS4 regulations: the TxDOT right-of-way (ROW) within the urbanized areas established by the 2000 and 2010 U.S. EPA Phase II Urbanized Area mas, and TxDOT s MS4 located in Phase I areas based on the 1990 U.S. Bureau of Census - hereafter referred to as "TxDOT s regulated area". The SWMP includes the relevant TPDES ermit language (deicted in italics) for each MCM. It describes and defines BMPs for each of the MCMs, measurable goals for each BMP, and an imlementation schedule for all activities. The Environmental Affairs Division will evaluate the need for revision of the SWMP at least annually. Additional BMPs may be included, and equivalent BMPs substituted, based on these annual evaluations. Elimination of a BMP, without the inclusion of an equivalent BMP, requires TxDOT to submit a notice of change (NOC) to TCEQ. 3

13 1.0 MCM 1 - PUBLIC EDUCATION, OUTREACH, AND INVOLVEMENT 1.1 Permit Requirements (a) Public Education and Outreach (1) The ermittee shall continue to develo, imlement, and maintain a comrehensive stormwater education and outreach rogram to educate emloyees, contractors, and the traveling ublic of hazards associated with illegal discharges, imroer disosal of waste, floatables, toxic materials, used oil, disosal and management of esticides, herbicides and fertilizers and about the imact that stormwater discharges can have on local waterways, as well as the stes that the traveling ublic can take to reduce ollutants in stormwater. The ermittee shall assess rogram elements that were described in the revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas must be fully imlemented by the end of this ermit term. The rogram must, at a minimum: a. Define the goals and objectives of the rogram based on high riority community-wide issues (for examle, reduction of trash and debris discharges from the MS4, romoting revious ublic camaigns used in the MS4, or increasing the numbers of illicit discharge reorting). The ermittee shall document activities conducted and materials used to fulfill this control measure, if alicable. Documentation must be detailed enough to demonstrate the amount of resources used to address each grou. This documentation must be included in the annual reorts required in this ermit; b. Identify the target audience(s); c. Develo or utilize aroriate educational materials, such as rinted materials, billboard and mass transit advertisements, signage at select locations, radio advertisements, television advertisements, and websites; and d. Determine cost effective and ractical methods and rocedures to meet the above goals and objectives. (2) Throughout the ermit term, the ermittee shall make the educational rogram available to convey the education message to the target audience(s) at least annually. (3) The ermittee shall review and udate as necessary, the statewide SWMP and MCM imlementation rocedures required by this ermit. Any changes must be reflected in the statewide annual reorts. Such written rocedures must be maintained at the District s office and headquarters, as a searate documentation within the statewide SWMP and made available for insection by the TCEQ. 4

14 (b) Public Involvement The ermittee shall involve the ublic in the lanning and imlementation activities related to develoing and imlementing the SWMP. At minimum, the ermittee shall comly with any state and local ublic notice requirements. The ermittee shall assess rogram elements that were described in revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas must be fully imlemented by the end of this ermit term. At a minimum, the ermittee shall: (1) If feasible, consider using ublic inut (for examle, the oortunity for ublic comment, or ublic meetings) in the imlementation of the rogram; (2) If feasible, create oortunities for citizens to articiate in the imlementation of control measures, such as stream clean-us, storm drain stenciling, volunteer monitoring, and educational activities; and (3) Ensure the ublic can easily find information about the statewide SWMP. 1.2 Program Overview Permit No. WQ requires that TxDOT imlement a ublic education rogram to distribute educational materials to its alicable communities or conduct equivalent outreach activities about the imacts of stormwater discharges on water bodies and the stes that the ublic can take to reduce ollutants in stormwater runoff (see 40 CFR (b)(1)). Permit No. WQ also requires a ublic involvement and articiation rogram that, at a minimum, comlies with state and local ublic notice requirements (see 40 CFR (b)(2)) Public Education, Outreach, and Involvement TxDOT has several rograms, ublications, and forums for educating and involving the ublic, TxDOT emloyees, and contractors on issues affecting stormwater quality. Elements of the rogram focus on general ublic rograms (e.g., Don t Mess With Texas camaign and Adot-a-Highway rogram) and inter-agency education on environmental issues, such as roer handling and alication of esticides and fertilizers, roer handling of used oil and toxic materials, and imrovement and awareness of construction and maintenance activities. TxDOT has develoed, imlemented, and continues to maintain a comrehensive stormwater education and outreach rogram. The comrehensive rogram focuses on educating target audiences about the imacts that illegal discharges (i.e., third-arty discharges into the TxDOT MS4 and illicit storm sewer connections) and imroer disosal 5

15 of waste and litter can have on stormwater discharges. TxDOT also rovides stes that target audiences can take to reduce ollutants in stormwater runoff. There are no residences, businesses, or commercial and industrial facilities located within TxDOT s regulated area. For this MCM TxDOT will target users of our roadways. TxDOT has determined that the following audiences are high-riority statewide targets: TxDOT emloyees; General traveling ublic; and, Construction site ersonnel. TxDOT has imlemented an educational BMP and articiation/involvement BMP to target the above audiences. This includes: (1) Educational BMP To address imroer disosal of waste, TxDOT continues to develo and romote the Don t Mess with Texas camaign. The Don t Mess with Texas camaign is a nationally recognized, award-winning ublic education/outreach rogram. Its message is very effective and highly recognizable statewide and the camaign itself has received considerable recognition, both nationally and internationally, as an excellent examle of ublic education/outreach. TxDOT has begun the Don t Mess With Texas Water" camaign, develoed under the Texas Legislature (82(r) HB 451) htt:// This rogram is imlemented through an MOU between TCEQ and TxDOT (Attachment A). (2) Outreach and Involvement BMP To encourage ublic articiation/involvement in minimizing imroer waste disosal, TxDOT will continue to develo and sonsor the Adot-a-Highway rogram. Individuals and/or grous are encouraged to volunteer for litter collection activities at designated Adot-a-Highway segments. During ast ermit terms, this rogram has roven to be highly successful in generating new volunteers and roviding cleaner roadway segments. TxDOT rovides Adot-a-Highway grous with stormwater related educational materials and the equiment and sulies necessary to clean their adoted segments. In addition, TxDOT laces roadway signs advertising the Adot-a-Highway entity resonsible for cleaning the subject segment. TxDOT maintains a list of current Adot-a-Highway individuals/grous. TxDOT utilizes ublic inut (for examle, the oortunity for ublic comment or ublic meetings) in the imlementation of the MS4 rogram through the Transortation Imrovement Program (TIP) or Statewide Transortation Imrovement Program (STIP). If a ublic meeting is held, a citizen advisory committee is formed, or a similar ublic function is established to allow the ublic an oortunity to articiate in transortation develoment and the associated SWMP imlementation. TxDOT will comly with all alicable state and local ublic notice requirements for the activity. TxDOT has created oortunities for citizens to articiate in the imlementation of control measures through the Adot-a-Highway rogram. 6

16 TxDOT kees a coy of the Statewide SWMP at the ENV Division in Austin and at each District office for the ublic to gain access. An electronic coy of the SWMP is osted on TxDOT s ENV website. The educational, articiation, and involvement BMP activities and materials utilized to fulfill this control measure will be documented. Records of these activities will be summarized in the annual reorts and will describe the message of the educational camaign, the rogram s success summary (e.g., reduction of trash, miles of Adot-a- Highway rogram), and the events or methods used to rovide the information to the target audience. Included in each BMP is a descrition of the records that will be maintained and included in the annual reorts. 1.3 Best Management Practices and Measurable Goals Don t Mess with Texas Program TxDOT will continue to develo and imlement the Don t Mess with Texas camaign. TxDOT will utilize ublic service announcements (PSAs) to get the deartment s anti-littering message to the ublic. To romote airtime, TxDOT will distribute ready-to-use ads to local TV or radio stations. The "Don't Mess with Texas" camaign increases ublic awareness that cigarette butts not only create litter but also contribute to wildfires by romoting its "Texas is Not Your Ashtray" message with statewide advertising that includes social media messaging and billboards. TxDOT rograms such as Don t Mess with Texas are successful contributors to litter abatement. This rogram romotes, ublicizes, and hels facilitate the ublic to be involved and to reort to TxDOT the resence of imroer disosal of materials along the highway and into the MS4 area. TxDOT will reort the number of ermit year ads aired and, when ossible, will rovide an estimate of the target audience Adot a Highway Program TxDOT will tyically assign local volunteer grous to ick u litter along a designated segment of highway as art of the "Adot-a-Highway" rogram. Under this rogram, grous sign u to adot a two mile length of highway and make sure that litter is eriodically icked u from the ROW along the highway. TxDOT will reort the number of ermit year volunteer grous and highway miles adoted, and rovide an estimate of the volume of trash and debris collected and disosed of Texas Trash-Off Program The Texas Trash-Off is an annual TxDOT event encouraging eole across the state to join forces to clean u the millions of ieces of litter that accumulate on Texas roadways each year. 7

17 Trash-Off is the single largest one-day cleanu event in the state and is Texas s signature event for the Great American Cleanu, the nation s largest community imrovement rogram. This BMP has, in the ast, saved aroximately $2,976,376 in icku costs throughout the state. TxDOT will include in its annual reort a coy of the latest Trash-Off Planner which reorts the number of volunteers articiating, the number of events held, the number of roadway miles cleared of litter and debris, and the ounds of trash collected Texas Highways Magazine Texas Highways magazine is ublished monthly by TxDOT's Travel Information Division. Texas Highways, the official travel magazine of Texas, encourages roer use of TxDOT roads and resents ways to reduce littering while traveling state roadways. In addition to the ublished magazines, electronic magazines are sent monthly by to electronic subscribers. This magazine reaches more than 300,000 subscribers and romotes environmental stewardshi through highlighting Texas natural beauty. TxDOT will reort the number of ermit year magazines distributed and, as available, the number of electronic coies distributed TxDOT s Webage TxDOT s webage (htts:// has an environmental section with information on environmental resources and a link to the Don t Mess with Texas litter revention camaign webage, (htt:// The website is designed to romote, ublicize, and facilitate the ublic to be involved and to reort to TxDOT the resence of imroer disosal of materials by articiating in the listed rograms. The website also contains a section for reorting a litterer. TxDOT s Environmental Affairs webage has information on environmental resources and a link to the stormwater rogram at: htts:// The website is designed to educate the ublic about imacts from illicit discharge and imroer disosal of materials to stormwater. The website also contains information on actions to take to eliminate ollutants into water sources from stormwater runoff. TxDOT will reort the number of ermit year views on each of the websites listed above Education of Construction Site Personnel TxDOT rovides education for both TxDOT and contractor emloyees involved in road construction through mandated training based on job role. All emloyees involved in earth disturbing road construction activities will review environmental videos as defined in TxDOT Secification SP (See Attachment B) and the EMS Training Matrix (see Attachment B). Stormwater and EMS osters rovide training to emloyees and the traveling ublic. 8

18 TxDOT requires a reconstruction meeting for rojects that include the CGP NOI to review an environmental agenda. The review of the requirements rovides awareness and ensures understanding of environmental needs for each roject. TxDOT will reort the number of ermit year TxDOT and contractor emloyees that received training Education of Herbicide Alication Personnel All TxDOT emloyees that work in TxDOT s regulated area, including maintenance yards, are trained in the roer use of materials that may imact stormwater quality. Training includes material handling and roer disosal for general tasks such as roadway reairs or vehicle maintenance. Secific activities such as esticide alication are erformed by ersonnel certified to erform that activity safely. TxDOT will reort the number ermit year emloyees that received herbicide alication training. 9

19 1.4 BMP Imlementation Schedule, Activity, and Measurable Goals Table 1.1 PUBLIC EDUCATION, OUTREACH, AND INVOLVEMENT Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug Don t Mess with Texas Program Contact local TV and/or radio stations and rovide them with TxDOT develoed Don t Mess With Texas PSAs. The number of times TV or radio stations run the ads and rojected audience if available. DMWT ENV Annually/Aug Adot-a- Highway Program Remove litter and other solid waste from the TxDOT roadway and/or the adjacent TxDOT MS4 through Adot-a-Highway events. Reort the number of volunteer grous, how many miles of MS4 were adoted, and volume of materials removed. DMWT District ENV Annually/Aug "Texas Trash-Off" Program Annual One Day cleanu event statewide. Reort the number of volunteers, events, roadway miles cleared, and the ounds of trash collected. Travel Information Division Annually/Aug "Texas Highways Magazine" Litter revention and roer use of TxDOT roadways. The number of rinted coies distributed and the number of s of electronic coies distributed. Travel Information Division Annually/Aug DMWT Webage, and -ENV Webage Udate web ages with new information. Number of hits from these web ages. DMWT ENV Annually/Aug Education of Construction Site Personnel Training classes (see Attachment B - List of training classes) and/or Posters Record class dates and number of articiants as well as document number of osters when rovided. District ENV Annually/Aug Education of Herbicide Alication Personnel Training classes (see Attachment B - List of training classes) Record class dates and number of articiants. District ENV 10

20 2.0 MCM 2 ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE) 2.1 Permit Requirements (a) Program Develoment (1) The ermittee shall continue to develo, imlement and enforce a rogram to detect, investigate, and eliminate illicit discharges into the MS4. The rogram must include a lan to detect and address non-stormwater discharges, including illegal duming to the MS4 system. The ermittee shall assess rogram elements that were described in revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas must be fully imlemented by the end of this ermit term. See also Part III.A.1(g). The Illicit Discharge Detection and Elimination (IDDE) rogram must include the following: a. U-to-date MS4 area mas (See Part III.B.2(c)); b. Methods for informing and training MS4 field staff (See Part III.B.2.(d)); c. Procedures for tracing the source of an illicit discharge (See Part III. B.2.(g)(2); d. Procedures for removing the source of the illicit discharge (See Part III.B.2.(g)(3); e. Procedures for conducting insections (See Part III.B.2.(h)); and f. Procedures to revent and correct any leaking on-site sewage disosal systems that discharge into the MS4. (2) If illicit connections or illicit discharges are observed related to another oerator s MS4, the ermittee shall notify the other MS4 oerator within 48 hours of discovery. If notification to the other MS4 oerator is not racticable, then the ermittee shall notify the aroriate TCEQ regional office of the ossible illicit connection or illicit discharge. (3) If another MS4 oerator notifies the ermittee of an illegal connection or illicit discharge to the MS4, then the ermittee shall follow the requirements secified in Part III.B.2.(e). (4) The ermittee shall review and udate as necessary, the statewide SWMP and MCM imlementation rocedures required by Part III.A.2. Any changes must be reflected in the statewide annual reorts. Such written rocedures must be maintained at the district office and in the SWMP and made available for insection by the TCEQ. 11

21 (b) Allowable Non-Stormwater Discharges Non-stormwater flows listed in Part II.C do not need to be considered by the ermittee as an illicit discharge requiring elimination, unless the ermittee or the TCEQ identifies the flow as a significant source of ollutants to the MS4s. (c) MS4 areas maing The ermittee shall maintain an u-to-date MS4 area ma, which must be located on site and available for review by the TCEQ. The MS4 ma must show at a minimum the following information: (1) The location of all MS4 outfalls that are oerated by the ermittee and that discharge into waters of the U.S; and (2) The location and name of all surface waters receiving discharges from all the MS4 outfalls. (d) Education and Training The ermittees shall imlement a method for informing or training all the ermittee s field staff that may come into contact with, or otherwise observe, an illicit discharge or illicit connection to the MS4 as art of their normal job resonsibilities. Training rogram documentation and attendance lists must be maintained at the ermittee s headquarters and at the District s office and made available for review by the TCEQ. (e) Public Reorting of Illicit Discharges and Sills To the extent feasible, the ermittee shall ublicize and facilitate ublic reorting of illicit discharges or water quality imacts associated with discharges into or from the MS4. The ermittee shall rovide a central contact oint to receive reorts; for examle, by including a sign on the highway or rest sto area with a telehone number for comlaints and sill reorting. (f) The ermittee shall continue and imrove as necessary existing rograms which revent, contain, and resond to sills that may discharge into the MS4. The sill resonse rogram may include a combination of sill resonse actions by the ermittee (and/or another ublic or rivate entity), and legal requirements for rivate entities within the jurisdiction of the ermittee. The ermittee shall maintain illicit discharge and sill resonse rocedures on site or in the SWMP. (g) Source Investigation and Elimination (1) Minimum Investigation Requirements Uon becoming aware of an illicit discharge, the ermittee shall conduct an investigation to identify and locate the source of such illicit discharge as soon as racticable. a. The ermittee shall rioritize the investigation of discharges based on their relative risk of ollution. For examle, sanitary sewage may be considered a high riority discharge. Similarly, riority areas, likely to have illicit discharges, should be considered a high riority for investigation. (See item B.2.(i)(4) below). 12

22 b. The ermittee shall reort to the TCEQ immediately uon becoming aware of the occurrence of any illicit flows believed to be an immediate threat to human health or the environment. c. The ermittee shall track all investigations and document, at a minimum: the date(s) the illicit discharge was observed; the results of the investigation; any follow-u of the investigation; and the date the investigation was closed. (2) Identification and Investigation of the Source of the Illicit Discharge The ermittee shall investigate and document the source of illicit discharges where the ermittee has jurisdiction to comlete such an investigation. If the source of illicit discharge extends outside the ermittee s boundary, the ermittee shall notify the adjacent ermitted MS4 oerators or the TCEQ Program Suort Section according to Part III.A.3.b. (3) Corrective Action to Eliminate Illicit Discharge - If and when the source of the illicit discharge has been determined, the ermittee shall immediately notify the resonsible arty of the roblem, and shall require, to the MEP, the resonsible arty to erform all necessary corrective actions to eliminate the illicit discharge. If it is not feasible for the ermittee to enforce the incident, the ermittee shall notify an adjacent MS4 oerator with enforcement authority or TCEQ Program Suort Section according to Part III.A.3. (h) Insections The ermittee shall conduct insections, as determined aroriate, in resonse to comlaints, and shall conduct follow-u insections as needed to ensure that corrective measures have been imlemented by the resonsible arty. (i) Additional Requirements for Previous Phase I Permitted Areas In addition to all the requirements described above, the ermittee shall meet the following requirements in areas that reviously were ermitted under a Phase I ermit. (1) Overflows and Infiltration The ermittee shall imlement controls, where necessary and feasible, to address dry weather and wet weather overflows from sanitary sewers into the MS4s. The ermittee shall limit the seeage from municial sanitary sewers into the MS4s to the MEP. (2) List of discharges - The ermittee shall maintain, and udate as necessary, a list of discharges to the MS4 that have been issued an NPDES or a TPDES ermit. The list shall include the name, location and ermit number of the discharger. (3) Hazardous Waste and Used Motor Vehicle Fluids a. The ermittee shall rohibit the discharge or disosal of used motor vehicle fluids, hazardous wastes, and the intentional disosal of collected quantities of grass cliings, leaf litter, and animal wastes into the MS4s. b. The ermittee shall ensure the imlementation of rograms to collect used motor vehicle fluids (including, at a minimum, oil and antifreeze) and 13

23 hazardous waste materials (including aint, solvents, esticides, herbicides, and other hazardous materials) for recycling, reuse, or roer disosal. Such rograms must be readily available to the ermittee s contractors and to the ermittee s emloyees and shall be ublicized and romoted on a regular basis. (4) Identification of Priority Areas The ermittee shall identify riority areas likely to have illicit discharges and shall document the basis for the selection of each riority area and shall create a list of all riority areas identified. This riority list must be available for review by the TCEQ. (5) Alternate Stormwater Assessment Program for Previous Phase I Permitted Areas 1) Alternate Dry Weather Screening Program The ermittee shall continue to screen and detect the resence of illicit connections and imroer discharges from adjacent MS4s and illegal third arties discharges to the ermittee s MS4. All areas that were ermitted under the Phase I MS4 rogram (See Part II.A) must continue to be screened as secified in the statewide SWMP at least once during the ermit term. 2) Alternate Wet Weather Program In revious Phase I ermitted areas where the ermittee was resonsible for outfall or watershed monitoring under the Wet Weather Characterization rogram, the ermittee shall continue to evaluate the watershed using existing stormwater characterization data collected by reliable sources such as TCEQ, local river authorities, artnershis, and/or other local efforts as aroriate. The analysis and interretation of this data shall be submitted to TCEQ in the year 4 annual reort. Previous Phase I areas under this requirement include: TxDOT Beaumont (WQ ), City of San Antonio (WQ ), TxDOT Austin (WQ ), City of Houston (WQ ), TxDOT Houston District (Pasadena) (WQ ), City of Fort Worth (WQ ), City of Arlington (WQ ), and City of Dallas (WQ ). (j) Additional Requirements for Previous TxDOT Austin District Phase I Permit (WQ ) In addition to all the requirements described above, the ermittee shall meet the following requirements in secific areas that reviously were ermitted under the TxDOT Austin-District Phase I ermit. Sill Prevention and Resonse the ermittee shall continue to imlement and imrove, as necessary, rograms that revent, contain, and resond to sills that may discharge into the MS4. When cleanu of a ROW sill is necessary to revent loss of life, ersonal injury, or severe roerty damage, the ermittee shall ensure the arties resonsible for the sill take all reasonable stes to minimize or revent any adverse effects to human health or the environment. The sill resonse rograms may include a combination of sill resonse actions by the ermittee (and/or another ublic entity), and legal requirements for rivate entities within the jurisdiction of the ermittee. 14

24 The ermittee shall address sills that originate from an adjacent MS4 by notifying the aroriate local MS4 entity within a reasonable time. If the ermittee does not agree with the corrective measure(s) or the time schedule roosed by the adjacent MS4, the ermittee shall refer the case to the TCEQ for further action and or enforcement. During emergency sill resonse, the ermittee shall rovide suort to the lead agency Deartment of Public Safety, TCEQ, or local official during the containment and cleanu. (1) The ermittee shall continue to coordinate with the U.S. Fish & Wildlife Service to determine areas of concern for endangered karst invertebrates, submit a discussion of which, if any, existing and needed structures have been identified as otential rojects to revent sills from entering the aquifer, and reort any coordination of rojects identified with the U.S. Fish & Wildlife Service in the annual reort. If requested by the local jurisdiction, the ermittee shall install hazardous material route signs on hazardous material routes that, by the local jurisdiction s Fire Chief and/or Local Emergency Planning Committee, are defined and established within the secific areas that reviously were ermitted under the TxDOT Austin-District Phase I ermit area. The osting of hazardous material route signs shall be done according to the ermittee s highway sign olicies within the required areas of the ermittee s ROW. 2.2 Program Overview TxDOT is required to develo, imlement, and enforce a rogram to detect and eliminate illicit discharges into the MS4 (see 40 CFR (b)(3)). Through its IDDE MCM TxDOT is required to resond to comlaints about illicit discharges or sills and to actively seek out illicit discharges and behaviors that could result in illicit discharges such as illegal connection to its MS4, imroer disosal of wastes, or duming of trash, oil, and/or other chemicals. Permit No. WQ requires TxDOT to have an u-to-date MS4 ma. Previously ermitted Phase I areas are required to identify areas with a high risk for illicit discharges, and these areas will be rioritized for more frequent investigations. The CWA 402()(3)(B)(ii), requires that TxDOT effectively rohibit non-stormwater discharges into the storm sewers. Permit No. WQ rovides imlementation of this requirement, in art by requiring the develoment of rocedures to investigate and eliminate illicit discharges, and methods for informing or training TxDOT staff and contractors who may come into contact or observe illicit discharges, on the identification and roer rocedures for reorting illicit discharges. Permit No. WQ requires TxDOT to develo and imlement a dry weather screening rogram in its reviously ermitted Phase I areas. 15

25 2.2.1 Program Develoment a) TxDOT will continue to develo, imlement and enforce a rogram to detect, investigate, and eliminate illicit discharges into the MS4. The rogram includes a lan to detect and address non-stormwater discharges, including illegal duming to the MS4 system. TxDOT will assess IDDE rogram elements that were described in revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas will be fully imlemented by the end of this ermit term. The Illicit Discharge Detection and Elimination (IDDE) rogram includes the following: 1) U-to-date MS4 area mas; 2) Methods for informing and training MS4 field staff; 3) Procedures for tracing the source of an illicit discharge; 4) Procedures for removing the source of the illicit discharge; 5) Procedures for conducting insections; and, 6) Procedures to revent and correct any leaking on-site sewage disosal systems that discharge into the MS4. b) If illicit connections or illicit discharges are observed related to another oerator s MS4, TxDOT will notify the other MS4 oerator within 48 hours of discovery. If notification to the other MS4 oerator is not racticable, then TxDOT will notify the aroriate TCEQ regional office (see Attachment C) of the ossible illicit connection or illicit discharge. c) If another MS4 oerator notifies TxDOT of an illegal connection or illicit discharge to the MS4, then TxDOT will follow the requirements secified in Section d) TxDOT will review and udate as necessary the SWMP and MCM imlementation rocedures required by Part III.A.2 of Permit No. WQ Any changes will be reflected in the annual reorts. Written rocedures will be maintained at the district offices, in the SWMP, and made available for insection by the TCEQ Allowable Non-Stormwater Discharges This SWMP identifies categories of non-stormwater discharges that are not rohibited from being discharged into the MS4 in Attachment D, along with any necessary controls, as alicable. 16

26 2.2.3 MS4 Areas Maing TxDOT is required to develo and maintain a ma of its MS4 which includes outfalls to WUS. An outfall is defined as a oint source at the oint where the TxDOT MS4 discharges to WUS and does not include oen conveyances connecting two searate storm sewers (internal outfalls), or ies, tunnels, or other conveyances that connect segments of the same stream or other waters of the U.S. and are used to convey waters of the U.S. For the urose of this ermit, sheet flow leaving the TxDOT MS4 without engineered channelization is not considered an outfall. Point sources such as curb cuts, traffic or rightor-way barriers with drainage slots that drain into oen culverts, oen swales or an adjacent roerty, or otherwise not actually discharging into waters of the U.S. are not considered an outfall. TxDOT udates its ma of outfalls to ensure that new outfalls are maed during the ermit term utilizing the Advanced Outfall Tracking System (AOTS) that mas and tracks the outfall locations with associated screening data and outfall classifications. The AOTS utilizes a Global Positioning System (GPS) to collect outfall satial and non-satial data that includes the following: The location in latitude and longitude of MS4 outfalls that are oerated by TxDOT and that discharge into WUS; The location and name of all surface waters receiving discharges from TxDOT MS4 outfalls as well as the imairment classification of each surface water; The outfall hysical roerties and the surrounding areas (including debris, staining, flow, color, etc.); and, The analytical results for otential or susect illicit discharge outfalls Education and Training TxDOT does not have MS4-secific field staff. Field staff consists of multi-discilinary ersonnel assigned by the district engineer, and resonsibilities range from maintenance to engineering. Staff erform several tasks (for examle, construction insection, emergency resonse, and environmental rocesses) during normal job resonsibilities. Personnel who erform MS4 oerations are rovided with training that contains information on identifying illicit discharge, reventing, and reducing otential stormwater ollution from the TxDOT MS4. Attachment B lists the alicable training classes; the list resented in Attachment B may change due to udates, new training module develoment, and/or removal of outdated materials Public Reorting of Illicit Discharges and Sills Educating the ublic and training TxDOT ersonnel rovides a roactive aroach to the stormwater rogram. TxDOT is committed to establishing a rogram to romote, ublicize, and facilitate ublic reorting of the resence of illicit discharges or water quality imacts associated with discharges from the MS4 and has recently begun the Don t Mess With Texas Water rogram: 17

27 The rogram was develoed under Texas Legislature (82(r) HB 451) htt:// The Don t Mess With Texas Water rogram consists of billboards laced in sensitive watershed areas that will include a hone number for reorting illicit duming activities; and, The rogram has been imlemented through an MOU between TCEQ and TxDOT. TxDOT also maintains a stormwater web age for reorting sills and illegal duming, and can be found at htt:// Sill Prevention and Resonse TxDOT has imlemented and imroved, as necessary, rograms that revent, contain, and resond to sills that may discharge into the MS4. When cleanu of a ROW sill is necessary, TxDOT will ensure the arties resonsible for the sill take all reasonable stes to minimize or revent adverse effects to human health or the environment. The sill resonse rograms include a combination of sill resonse actions by TxDOT (and/or another ublic or rivate entity), and legal requirements for rivate entities within the jurisdiction of TxDOT. TxDOT's role in emergency sill resonse is to rovide suort to the lead agency Deartment of Public Safety (DPS), TCEQ, or local official during the containment and cleanu. For more information about TxDOT's hazardous material cleanu olicy, refer to TxDOT s Occuational Safety Manual, Chater 5, Section 6. Most sills are a result of a traffic incident, and usually, TxDOT is called to the scene by law enforcement. Safety of TxDOT ersonnel and the motoring ublic is riority. Deartment ersonnel are secifically rohibited from handling, cleaning u or otherwise coming in contact with toxic or hazardous materials at accident scenes or abandonment sites on the deartment's ROW. Vehicle fluid cleanu of less than 25 gallons is the only excetion to handling or cleaning u hazardous materials at accident scenes or abandonment sites. 18

28 The lan below outlines the resonsibilities of each agency involved in an emergency sill resonse. They are also included in TxDOT s Maintenance Oerations Manual. Agency TxDOT staff* DPS Local official Resonsibilities Restricts ublic access Provides traffic control at the site until relieved by DPS or other on-site coordinator Reort all ertinent information to suervisor Suervisor reorts information to district hazardous material coordinator District engineer/hazardous materials coordinator notifies aroriate governmental agencies, such as TCEQ, DPS, and the local fire deartment Performs the on-site coordination of transortation emergencies for all unincororated areas Performs on-site coordination of transortation emergencies for all incororated areas TCEQ Acts as lead state agency for sill resonse *Note: TxDOT ersonnel will not intentionally handle, clean u, or otherwise come in contact with toxic or hazardous materials at accident sites. Sill Resonse Prearation As er TxDOT s Maintenance Oerations Manual, TxDOT maintenance office suervisors are resonsible for: Ensuring state vehicles have a coy of the USDOT Emergency Resonse Guidebook; Maintaining udated emergency notification list, including telehone numbers for DPS, local law enforcement, fire deartment, district hazardous materials coordinator, and the TCEQ; and, Instructing emloyees to remain clear of accident areas contaminated with known or susected toxic or hazardous materials. TxDOT s Emergency Resonse Standard Oerating Procedure No , which requires, among other things, that the ROW and MS4 be fully restored to its re-existing condition. This normally includes reairing the infrastructure, relacing removed soil with clean accetable fill, re-establishing the drainage system, and re-sodding the imacted area. In eriods of dry weather, the contractor may be required to water the sod u to five weeks in order to establish the root system Source Investigation and Elimination Data collected during several ermit terms suorts the conclusion that the majority of illicit discharges to TxDOT s MS4 come from adjacent third-arty MS4s. Given this information, TxDOT can better rotect the quality of its MS4 by roviding increased insection of third-arty outfalls within our ROW. Thus, TxDOT s rogram to locate and eliminate illicit discharges and imroer disosal to the MS4 will focus on third-arty 19

29 outfalls. The rogram includes visual insection (visual screening) to locate ortions of the MS4 with susected illicit discharges and imroer disosal, along with the results of field test kits and laboratory analytical verification when warranted. Outfalls with the otential to contribute high levels of ollutants to the MS4 (based on revious screening results, comlaints, land use of others' adjacent MS4, hysical evidence, or other factors) and in accordance with the rocedures secified in Section of this SWMP are screened. Follow-u activities to eliminate illicit discharges and imroer disosal may be rioritized based on the magnitude and nature of the susected discharge, sensitivity of the receiving water, or other relevant factors. TxDOT requires the elimination of illicit discharges and imroer disosal ractices within the regulated area as exeditiously as ossible. If the resonsible arty (RP) is identified, TxDOT will notify the RP that a roosed lan of action must be submitted to TxDOT within a reasonable amount of time deending on the situation (usually two weeks). In the interim, TxDOT requires the oerator of the illicit discharge to take reasonable and rudent measures to minimize the discharge of ollutants to the MS4. Where elimination of an illicit discharge within 30 days is not ossible, TxDOT will request an exeditious schedule for removal of the discharge. Illicit discharges and disosal that originate from an adjacent MS4 will be addressed by notifying the aroriate local MS4 ermittee within a reasonable time. If TxDOT does not agree with the corrective measure(s) and/or the time schedule, TxDOT will refer the case to the TCEQ for further action and/or enforcement Insections TxDOT does not have the legal authority to enforce state environmental laws against third arties. TxDOT will rely comletely on the TCEQ or the local municial government for law enforcement. Uon detection of a otential illicit connection, duming, other illegal activity, or accident sills, TxDOT will investigate on-site and within the state ROW and then reort the roblem as aroriate Additional Requirements for Previous Phase I Permitted Areas In addition to all the requirements described above, TxDOT will meet the following requirements in areas that reviously were ermitted under a Phase I ermit. a) Overflows and Infiltration TxDOT will imlement controls, where necessary and feasible, to address dry weather and wet weather overflows from sanitary sewers into the MS4s. TxDOT will limit the seeage from municial sanitary sewers into the MS4s to the MEP. b) List of discharges - TxDOT will maintain, and udate as necessary, a list of discharges to the MS4 that have been issued an NPDES or a TPDES ermit. The list will include the name, location and ermit number of the discharger. 20

30 c) Hazardous Waste and Used Motor Vehicle Fluids 1) TxDOT rohibits the discharge or disosal of used motor vehicle fluids, hazardous wastes, and the intentional disosal of collected quantities of grass cliings, leaf litter, and animal wastes into the MS4s. 2) TxDOT will ensure the imlementation of rograms to collect used motor vehicle fluids (including, at a minimum, oil and antifreeze) and hazardous waste materials (including aint, solvents, esticides, herbicides, and other hazardous materials) for recycling, reuse, or roer disosal. Such rograms will be readily available to the ermittee s contractors and to the ermittee s emloyees and will be ublicized and romoted on a regular basis. d) Identification of Priority Areas TxDOT will identify riority areas likely to have illicit discharges, document the basis for the selection of each riority area, and will create a list of all riority areas identified. This riority list will be available for review by the TCEQ. e) Alternate Stormwater Assessment Program for Previous Phase I Permitted Areas 1) Alternate Dry Weather Screening Program TxDOT will continue to screen and detect the resence of illicit connections and imroer discharges from adjacent MS4s and illegal third arties discharges to the ermittee s MS4. All areas that were ermitted under the Phase I MS4 rogram (See Part II.A of Permit No. WQ ) will continue to be screened as secified in the statewide SWMP at least once during the ermit term. 2) Alternate Wet Weather Program In revious Phase I ermitted areas where TxDOT was resonsible for outfall or watershed monitoring under the Wet Weather Characterization rogram, TxDOT will continue to evaluate the watershed using existing stormwater characterization data collected by reliable sources such as TCEQ, local river authorities, artnershis, and/or other local efforts as aroriate. The analysis and interretation of this data will be submitted to TCEQ in the year 4 annual reort. Previous Phase I areas under this requirement include: TxDOT Beaumont (WQ ), City of San Antonio (WQ ), TxDOT Austin (WQ ), City of Houston (WQ ), TxDOT Houston District (Pasadena) (WQ ), City of Fort Worth (WQ ), City of Arlington (WQ ), and City of Dallas (WQ ). 21

31 Additional Requirements for Previous TxDOT Austin District Phase I Permit (WQ ) In addition to all the requirements described above, TxDOT Austin District will meet the following requirements in secific areas that reviously were ermitted under the TxDOT Austin-District Phase I ermit. Sill Prevention and Resonse the TxDOT Austin District will continue to imlement and imrove, as necessary, rograms that revent, contain, and resond to sills that may discharge into the MS4. When cleanu of a ROW sill is necessary, the TxDOT Austin District will ensure the arties resonsible for the sill take all reasonable stes to minimize or revent any adverse effects to human health or the environment. The sill resonse rograms may include a combination of sill resonse actions by the TxDOT (and/or another ublic entity), and legal requirements for rivate entities within the jurisdiction of TxDOT. The TxDOT Austin District will address sills that originate from an adjacent MS4 by notifying the aroriate local MS4 entity within a reasonable time. If the TxDOT Austin District does not agree with the corrective measure(s) or the time schedule roosed by the adjacent MS4, the TxDOT Austin District will refer the case to the TCEQ for further action and or enforcement. During emergency sill resonse, the TxDOT Austin District will rovide suort to the lead agency Deartment of Public Safety, TCEQ, or local official during the containment and cleanu. a) The TxDOT Austin District will continue to coordinate with the U.S. Fish & Wildlife Service to determine areas of concern for endangered karst invertebrates, submit a discussion of which, if any, existing and needed structures have been identified as otential rojects to revent sills from entering the aquifer, and reort any coordination of rojects identified with the U.S. Fish & Wildlife Service in the annual reort. b) If requested by the local jurisdiction, the TxDOT Austin District will install hazardous material route signs on hazardous material routes that, by the local jurisdiction s Fire Chief and/or Local Emergency Planning Committee, are defined and established within the secific areas that reviously were ermitted under the TxDOT Austin-District Phase I ermit area. The osting of hazardous material route signs will be done according to the TxDOT s highway sign olicies within the required areas of the ermittee s ROW. 2.3 Best Management Practices and Measurable Goals TxDOT has imlemented a rogram to locate and eliminate illicit discharges and imroer disosals to the MS4. This rogram includes visual insection/screening to locate ortions of the MS4 with susected illicit discharges and imroer disosals, along with the results of field test kits and laboratory analytical verification when warranted. Screening oints will be selected with an emhasis on those areas that may be contributing high levels of ollutants to the MS4 based on revious screening results, comlaints, others' adjacent 22

32 MS4 land use, hysical evidence, or other factors, and in accordance with the rocedures secified in the SWMP Program Develoment TxDOT will review and udate as necessary, the SWMP and MCM imlementation rocedures required by Part III.A.2 of Permit No. WQ Any changes will be reflected in the annual reorts. Any udated written rocedures to the SWMP will be forwarded to and maintained at the district offices Allowable Non-Stormwater Discharges TxDOT will udate its list of Allowable Non-Stormwater Discharges (see Attachment D), as necessary. If changes are made to the list, those changes will be included in the current reorting year annual reort MS4 Areas Maing An information management system for data, the AOTS, was develoed to comile a storm sewer outfall ma that contains the elements required under the MS4 ermit. AOTS is a web-based tool with a central storage database that maintains TxDOT field-collected and deskto related outfall and crossing oint data. The AOTS allows for storage of data associated with field insections, follow-u investigations, and third-arty notifications. The stored outfall and crossing oint GIS ma, together with the corresonding attributes and insection data is available via an Internet website. The website is broken down into a Ma Viewer and Data Manager. Overall, the website rovides dynamic maing caabilities and near real-time tracking information related to TxDOT outfalls across the entire state of Texas. The AOTS ma will be udated with new and relocated outfalls on an annual or ongoing basis. Udated mas will be included in the annual reort to TCEQ. TxDOT will include on the AOTS ma the location and name of all surface waters receiving discharges from all the MS4 outfalls and include this in the annual reort. TxDOT mas, udates, and comletes the MS4 maing using the schedule detailed in Table 2.1 of Section 2.4 below. TxDOT will focus its screening efforts on the following: Issues identified during the initial screening/maing rocess are followed u on an individual basis; Routine insection and maintenance of ditches, outfalls, and other roadway aurtenances include an IDDE check, and noted issues will be followed u on an individual basis; Sills and comlaints will be followed u on an individual basis; and, TxDOT will ma the location and name of all surface waters receiving discharges from their MS4 outfalls. 23

33 2.3.4 Education and Training Secific emhases on educating and training TxDOT ersonnel are imortant and integral asects of the rogram. Many ollution roblems can be avoided by having an informed oulation willing to articiate in imroving stormwater quality. TxDOT will utilize the following existing rograms to meet our education and training requirements: Training classes to facilitate the roer management and disosal of used oil and otentially hazardous materials; Aroriate educational and training guidelines for TxDOT lanners, highway designers, construction and maintenance ersonnel; and, Mandated EMS classes for construction and maintenance ersonnel and managers. TxDOT will reort the number of ermit year TxDOT staff and contractor emloyees that received training in the annual reort Public Reorting of Illicit Discharges and Sills TxDOT will utilize the Don t Mess With Texas Water reorting system and the TxDOT Stormwater Webage comlaint age for receiving reorts related to illicit discharges and sills. TxDOT will reort the number calls and comlaint forms received during the reorting year in the annual reort. Resonse to ublic reorting will be included in the annual reort as well Sill Prevention and Resonse TxDOT will resond to comlaints of sills and unauthorized discharges that occur within TxDOT s regulated area. TxDOT contracts with rofessional HAZMAT service teams to resond to a sill in the event the RP is not willing or able to resond to the sill in a timely manner. The TxDOT Hazmat service team is contractually required to be on site within ninety (90) minutes after being informed about an incident. TxDOT tracks the number of sills occurring within the ROW, the amount of material disosed of in a roerly classified landfill, and the cost of disosal and cleanu. Collisions of automobiles might result in small sills of organic liquids, but those are unlikely to have an imact on water bodies. Sills from a freight transort or fuel delivery truck, such as liquid or solid cargo, could ose a temorary adverse imact on a water body, and TxDOT resonds exeditiously to accidents that result in sills of liquid or solid cargo. Sills that originate from an adjacent MS4, will be addressed by notifying the aroriate local MS4 ermittee within a reasonable time. If TxDOT does not agree with the corrective measure(s) and/or the time schedule, TxDOT will refer the case to the TCEQ for further action and/or enforcement. TxDOT will reort the number sills resonded to during the reorting year in the annual reort. The reort will also include, if available, the RP, the volume of the sill, and associated cost of the resonse. 24

34 2.3.7 Source Investigation and Elimination TxDOT will visually observe the MS4 regulated area during daily oerations in order to identify the resence of illicit discharges and/or illicit connections, tyically originating from third-arty dischargers. If illicit discharges or illicit connections are identified, TxDOT has a rocedure to erform the illicit discharge/connection insection, field data collection and tracking system that will aly to observed discharges or illicit connections. Field rocedures for screening are illustrated in Figure 2.1 and contained in TxDOT ENV ITEM 303 MS4 Dry Weather Screening (Performed only in reviously ermitted Phase I areas, see section below), Outfall Maing and Illicit Discharge Detection & Elimination (IDDE) Program, (see Attachment E). Field rocedures for maing are contained in TxDOT ENV ITEM 340 Global Positioning System (GPS) Data Collection and Processing Procedures for MS4 Outfall Maing, Attachment F. In addition to utilizing the available resources listed above, TxDOT will erform Site- Secific Monitoring when conditions warrant. Site-Secific Monitoring will occur through increased IDDE insections and will follow secific TxDOT rotocols. Existing TxDOT rotocols utilize secific rocedures, such as flow diagrams and associated reference tables, for IDDE insection ersonnel to use in the field. Current flow diagrams and reference tables for IDDE insections are resented with Figure 2.1 at the end of this section Insections In the event that a ossible illicit discharge is identified, TxDOT will investigate the flow ustream to the extent of TxDOT roerty. TxDOT will reort flows originating off state ROW to the aroriate RP or the adjacent MS4 oerator within 48 hours of discharge confirmation for further action. In the event the flow aears to create a hazard or contain toxic or noxious substances, TxDOT will reort the flow to the TCEQ. TxDOT has an Interagency Cooeration Contract between TCEQ and TxDOT that is intended to mitigate otential ollutant discharges to surface waters and to environmentally sensitive areas. Process: 1. Notify adjacent landowner uon detection to mitigate illicit discharge and/or illicit connection; 2. If adjacent landowner does not cooerate, notify the adjacent MS4 oerator within the time eriod established above; and/or 3. Notify TCEQ if the adjacent MS4 oerator does not resond in a timely manner. Attachment C includes TCEQ regional offices to contact should TCEQ notification be required. TxDOT will reort the number of insections erformed during the reorting year in the annual reort. The reort will also include, if available, the RP if found, the cost if available, and who the incident was turned over to for enforcement. 25

35 2.3.9 Additional Requirements for Previous Phase I Permitted Areas Overflows and Infiltration TxDOT utilizes a utility ermit rocess with intent to regulate the location, design and methods for installation and adjustment of sanitary sewer and other utility lines on state-controlled highways. TxDOT will reort the number of utility ermits issued during the reorting year in the annual reort. List of Dischargers TxDOT will udate its list of dischargers, as necessary. If changes are made to the list, those changes will be included in the current reorting year annual reort. Hazardous Waste and Used Motor Vehicle Fluids - TxDOT will indicate how it romoted, on a regular basis, the collection of hazardous waste and used motor oil to contractors and TxDOT emloyees during the reorting year in the annual reort. Identification of Priority Areas - TxDOT will create and udate its list of Priority Areas, as necessary. If changes are made to the list, those changes will be included in the current reorting year annual reort. Dry Weather Screening Program TxDOT will continue to screen and detect the resence of illicit connections and imroer discharges from adjacent MS4s and illegal thirdarty discharges to the MS4. All areas that were ermitted under the Phase I MS4 rogram will continue to be screened as secified in Section at least once during the ermit term. Each District that had a reviously issued Phase I ermit is required to continue erforming dry weather insections on outfalls within the reviously ermitted Phase I areas. Dry weather screening of outfalls is not required in the Phase II designated areas. Dry weather screening will tyically be erformed by contractors. TxDOT will reort the number dry weather insections erformed during the reorting year in the annual reort. Wet Weather Program In revious Phase I ermitted areas where TxDOT was resonsible for outfall or watershed monitoring under the Wet Weather Characterization rogram, TxDOT will continue to evaluate the watershed using existing stormwater characterization data collected by reliable sources such as TCEQ, local river authorities, artnershis, and/or other local efforts as aroriate. Previous Phase I areas under this requirement include: TxDOT Beaumont (WQ ), City of San Antonio (WQ ), TxDOT Austin (WQ ), City of Houston (WQ ), TxDOT Houston District (Pasadena) (WQ ), City of Fort Worth (WQ ), City of Arlington (WQ ), and City of Dallas (WQ ). TxDOT will include the Wet Weather Analysis in the year four annual reort. 26

36 Additional Requirements for Previous TxDOT Austin District Phase I Permit (WQ ) Sill Prevention and Resonse TxDOT will continue to imlement and imrove, as necessary, rograms that revent, contain, and resond to sills that may discharge into the MS4. When cleanu of a ROW sill is necessary to revent loss of life, ersonal injury, or severe roerty damage, TxDOT will ensure the arties resonsible for the sill take all reasonable stes to minimize or revent any adverse effects to human health or the environment, as secified in Section above. TxDOT will address sills that originate from an adjacent MS4 by notifying the aroriate local MS4 entity within a reasonable time, tyically 48 hours. If TxDOT does not agree with the corrective measure(s) or the time schedule roosed by the adjacent MS4, the ermittee will refer the case to TCEQ for further action and/or enforcement. During emergency sill resonse, TxDOT will rovide suort to the lead agency, the Deartment of Public Safety, TCEQ, or other local official during the containment and cleanu. Sill resonse in the Austin District is included in the annual reort from Section above. Agency coordination - TxDOT will continue to coordinate with the U.S. Fish & Wildlife Service to determine areas of concern for endangered karst invertebrates, submit a discussion of which, if any, existing and needed structures have been identified as otential rojects to revent sills from entering the Edwards Aquifer, and reort any coordination of rojects identified with the U.S. Fish & Wildlife Service in the annual reort. If requested by the local jurisdiction, TxDOT will install hazardous material route signs on hazardous material routes that, by the local jurisdiction s Fire Chief and/or Local Emergency Planning Committee, are defined and established within the secific areas that reviously were ermitted under the TxDOT Austin-District Phase I ermit area. The osting of hazardous material route signs will be done according to TxDOT s highway sign olicies within the required areas of the ROW within the TxDOT MS4. Again, this activity will only be erformed in the Austin District. TxDOT will reort any agency coordination conducted during the reorting year in the annual reort. 27

37 2.4 BMP Imlementation Schedule, Activity, and Measurable Goals Table 2.1 ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE) Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug Udate SWMP and MCM Imlementation Review and udate, as necessary, the SWMP and MCM imlementation rocedures. Provide udated SWMP. ENV Annually/Aug Udate List of Allowable Non-Stormwater Discharges Review and udate, as necessary, the List of Allowable Non- Stormwater Discharges. Provide udated List in SWMP. ENV Annually/Aug MS4 Areas Maing Udate MS4 mas to include 20 ercent of new maed outfalls, relocated outfalls, and deleted outfalls. Identify the location and name of all surface waters receiving discharges from TxDOT outfalls; erform 20 ercent er year. Provide udated ma dislaying surface waters receiving discharges. ENV Annually/Aug Education and Training Require TxDOT staff to attend training classes listed in Attachment B as alicable. Record the number of articiants for each training class. Records will be maintained at each District and ENV for TCEQ review. District ENV Annually/Aug Public Reorting of Illicit Discharges and Sills Utilize the Don t Mess With Texas Water reorting system and the TxDOT Stormwater Webage comlaint age for receiving reorts. Reort the number calls and comlaint forms received ENV Annually/Aug Sill Prevention and Resonse Resond to comlaints of sills and un-authorized discharges that occur within TxDOT s regulated area. Reort the number sills resonded to. Comass Function Codes 520, 830 District Annually/Aug Source Investigation and Elimination Observe the TxDOT MS4 during daily oerations to detect illicit discharges and/or illicit connections during daily oerations. Provide a list of illicit discharges/illicit connections detected. Summarize and reort all follow-u actions resulting from screening to include identified RP and cost. District ENV 28

38 ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE) Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug Insections Investigate illicit flow ustream to the extent of TxDOT roerty. TxDOT will reort flows originating off state ROW to the aroriate RP or the adjacent MS4 oerator within 48 hours of discharge confirmation for further action. Reort the number insections erformed and rovide a summary, if available, of the RP, cost, and enforcement. District ENV THE FOLLOWING BMPs WILL BE PERFORMED ONLY IN PREVIOUSLY PERMITTED PHASE I AREAS Annually/Aug Overflows and Infiltration Utilizes the TxDOT utility ermit rocess to regulate the location, design and methods for installation and adjustment of sanitary sewer and other utility lines. Reort the number utility ermits issued. District ENV Annually/Aug List of Dischargers Udate list of dischargers, as necessary. Changes will be included in the current reorting year annual reort. ENV Annually/Aug Hazardous Waste and Used Motor Vehicle Fluids Indicate how TxDOT romoted, on a regular basis, the collection of hazardous waste and used motor oil to contractors and TxDOT emloyees. Reort the number of romotions, the tye of romotion and the intended audience in the annual reort. ENV District Annually/Aug Identification of Priority Areas Udate list of riority areas, as necessary. If changes are made, include in annual reort. ENV Annually/Aug Dry Weather Screening Program Screen 20 ercent of the reviously ermitted Phase I areas and detect the resence of illicit connections and imroer discharges from adjacent MS4s and illegal third arties discharges to the MS4. Reort the number dry weather insections erformed. ENV District Year 4/Aug Wet Weather Program Evaluate the listed watersheds using existing stormwater characterization data collected by reliable sources such as TCEQ, local river authorities, artnershis, and/or other local efforts as aroriate, along with any viable TxDOT field data collected. Include the Wet Weather Analysis in the fourth reorting year annual reort. ENV 29

39 ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE) Permit Year/Month BMP Activity Measurable Goals Resonsible Staff ADDITIONAL REQUIREMENTS FOR PREVIOUS TxDOT AUSTIN DISTRICT PHASE I PERMIT (WQ ) ONLY Annually/Aug Annually/Aug Sill Prevention and Resonse Agency coordination Continue to imlement and imrove, as necessary, rograms that revent, contain, and resond to sills that may discharge into the MS4. Coordinate with the U.S. Fish & Wildlife Service to determine areas of concern for endangered karst invertebrates. Sill resonse in the Austin District is already included in the annual reort from Section above. Comass Function Codes 520, 830. Reort any agency coordination conducted during the reorting year in the annual reort. District District ENV 30

40 Figure Texas Deartment of Transortation (TxDOT) Outfall Field Insection Work Flow Diagram and Classification Scheme START Make hysical observations. UNLIKELY ILLICIT DISCHARGE NO (See Table 2.3) Does the outfall have flow? NO Do observations suggest an illicit discharge? YES (See Table 2.4) POTENTIAL ILLICIT DISCHARGE YES Measure flow, and measure field water chemistry if necessary. NO Are laboratory water samles necessary for collection? NO Does water chemistry or hysical observations suggest an illicit discharge? (See Table 2.4) YES SUSPECT ILLICIT DISCHARGE YES Collect water samles for laboratory analysis. Do laboratory samle results, field water chemistry, and hysical observations collectively suggest an obvious discharge? (See Table 2.5) NO YES OBVIOUS ILLICIT DISCHARGE 31

41 Following the flow chart above, when TxDOT field insection ersonnel encounter a otential illicit discharge, whether it is in dry weather or wet weather conditions or it is from an established outfall or discharging into the MS4, they begin by assessing the hysical arameters resented in Tables 2.2, 2.3, 2.4, and 2.5 below. The following activities may be erformed by "TxDOT Qualified Personnel" and/or contractor. In addition, when it is not evident that the flow/discharge is an accetable nonstormwater discharge as defined by the ermit and this SWMP, a field water chemistry samle is collected and screened using an aroved stormwater test kit such as a Lamotte Stormwater Field Laboratory Analysis Kit. If levels of the established otential ollutants exceed the levels in Table 2.3 below, field insection ersonnel are required to obtain a water samle, using roer chain-of-custody and reservation rocedures, for laboratory analysis at a NELAC accredited laboratory. Laboratory water chemistry analysis is erformed on the following arameters: Ammonia_Nitrogen Detergent (surfactants) E.Coli Coliforms, fecal H Coer, Total Phenols Oil and Grease Total Petroleum Hydrocarbon The results of the IDDE field and laboratory chemistry analysis will be tabulated and resented in a database/sreadsheet format for comarison with other available monitoring databases, and a comrehensive database will be rovided in the TxDOT MS4 Statewide Year four annual reort. TxDOT will investigate the otential source of and mitigate the detected ollutant(s) to the extent racticable. TxDOT reorts the number of source investigations erformed and eliminated during the reorting year in Section

42 Table 2.2 Logic Scheme to Negatively Answer "Do Observations Suggest an Illicit Discharge?" Leading to a Classification of "Unlikely Illicit Discharge." Observation For Dry Weather For Wet Weather Presence of Foam No or Null No or Null Color of Stain Clear, Blue, Green, Gray, Black, Other, None or Null Clear, Blue, Green, Gray, Black, Other, None or Null PHYSICAL PARAMETERS Turbidity Clear, Cloudy, or Null Clear, Cloudy, or Null Presence of Floatables None, Plastics, Paer, or Null None, Plastics, Paer, or Null Vegetative Conditions None, Other, or Null None, Other, or Null Presence of Deosits None, Sediment, or Null None, Sediment, or Null Odor None, Other, or Null None, Other, or Null Table 2.3 Table 2 Logic Scheme to Affirmatively Answer "Do Observations Suggest an Illicit Discharge?" Leading to a Classification of "Potential Illicit Discharge." Observation For Dry Weather For Wet Weather Presence of Foam Yes Yes Color of Stain Yellow, Red, Orange, Blue, Purle, or White Yellow, Red, Orange, Blue, Purle, or White Turbidity Cloudy or Oaque Oaque PHYSICAL PARAMETERS Presence of Floatables Sewage, Petroleum Sheen, Paint, or Suds Sewage, Petroleum Sheen, Paint, or Suds Vegetative Conditions Poor Growth or Overgrowth Poor Growth or Overgrowth Presence of Deosits Oil, Paint, or Others Oil, Paint, or Others Odor Sewage, Sulfide, Rancid, or Petroleum OR Sewage, Sulfide, Rancid, or Petroleum Parameter Results Units Results Units Ammonia Nitrogen > 2.0 m > 2.0 m FIELD WATER CHEMISTRY Chloride, Total > 2.0 m > 2.0 m Detergent (Surfactant) > 5.0 m > 5.0 m H < 6.0 or > 9.0 Standard Units < 6.0 or > 9.0 Standard Units Coer, Total > 0.5 m > 1.0 m Phenols > 0.3 m > 0.6 m 33

43 Table 2.4 Logic Scheme to Affirmatively Answer "Does Field Water Chemistry and Observations Suggest an Illicit Discharge?" Leading to a Classification of "Susect Illicit Discharge." Observation For Dry Weather For Wet Weather Presence of Foam Yes Yes Color of Stain Yellow, Red, Orange, Blue, Purle, or White Yellow, Red, Orange, Blue, Purle, or White Turbidity Cloudy or Oaque Oaque PHYSICAL PARAMETERS Presence of Floatables Vegetative Conditions Sewage, Petroleum Sheen, Paint or Suds Poor Growth Over Flourishing Sewage, Petroleum Sheen, Paint or Suds Poor Growth Over Flourishing Presence of Deosits Oil, Paint or Other Oil, Paint or Other Odor Sewage, Sulfide, Rancid, or Petroleum Sewage, Sulfide, Rancid, or Petroleum AND Parameter Results Units Results Units Ammonia_Nitrogen >2.0 m >2.0 m FIELD WATER CHEMISTRY Chlorine, total >2.0 m >2.0 m Detergent >5.0 m >5.0 m H <6.0 or >9.0 Standard Units <6.0 or >9.0 su Coer, total >0.5 m >1.0 m Phenols >0.3 m >0.6 m 34

44 Table 2.5 Logic Scheme to Affirmatively Answer "Do Laboratory Samle Results, Field Water Chemistry, and Observations Suggest an Illicit Discharge?" Leading to a Classification of Obvious Illicit Discharge. PHYSICAL PARAMETERS FIELD WATER CHEMISTRY Scenario Sewage Car Wash Construction Observation Presence of Foam Color of Stain Turbidity Presence of Floatables Dry or Wet Weather Dry Weather Only Dry Weather Only Commercial Areas Dry Weather Only Fuel Sill Dry or Wet Weather NU Yes NU NU NU NU Oaque or Cloudy Yellow Blue, Black, Green, Orange, Red, Gray, Purle, White or Other Cloudy or Oaque Yellow Blue, Black, Green, Orange, Red, Gray, Purle, White or Other Cloudy or Oaque Yellow, Blue, Black, Green, Orange, Red, Gray, Purle, White, or Other NU Sewage Suds NU NU Yellow, Green, Red, Gray, Orange, Purle, or Other NU Petroleum Sheen Vegetative NU NU NU NU NU Presence of Deosits Odor Parameter Ammonia_ Nitrogen Chlorine, total Detergent H Coer, total Phenols NU NU NU NU Oily Sewage, Sulfide or Rancid Results 6 NU NU NU NU NU U n i t s m m m s u m m NU AND/OR Results NU NU 10 >6.0 or <9.0 NU NU U n i t s m m m s u m m NU Results NU NU NU >5.9 or > U n i t s m m m s u m m Sewage, Sulfide, Rancid, or Other Results 6 NU 10 NU NU NU U n i t s m m m s u m m Petroleum Results NU NU NU NU NU 3.4 U n i t s m m m s u m m 35

45 36 Table 2.5 Cont. AND/OR Parameter Results U n i t s Results U n i t s Results U n i t s Results U n i t s Results U n i t s LAB WATER CHEMISTRY Ammonia_ Nitrogen 3 m NU m NU m 3 m NU m Detergent NU m 5 m NU m 5 m NU m E. coli 100,000 M P N / m L NU M P N / m L NU M P N / m L 100,000 M P N / m L NU M P N / m L Enterococci 100,000 c f u / m L NU c f u / m L NU c f u / m L 100,000 c f u / m L NU c f u / m L H NU s u NU s u NU s u NU s u NU s u Coer, total NU m NU m 2.6 m NU m NU m Phenols NU m NU m 3.4 m NU m 3.4 m Oil and Grease NU m g / L NU m g / L NU m g / L NU m g / L >15 m g / L Total Petroleum Hydrocarb NU m NU m NU m NU m >15 m

46 3.0 MCM 3 - CONSTRUCTION SITE STORMWATER RUNOFF CONTROL 3.1 Permit Requirements (a) Requirements and Control Measures The ermittee shall continue to develo, imlement and enforce a rogram requiring the ermittee s small and large construction activities, as defined in Part I of this ermit, to select, install, imlement, and maintain stormwater control measures that revent illicit discharges to the MEP. The rogram must include the develoment and imlementation of a regulatory mechanism, as well as sanctions to ensure comliance to the extent allowable under state, federal, and local law, to require erosion and sediment control. The ermittee shall assess rogram elements that were described in the revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas must be fully imlemented by the end of this ermit term. If TCEQ waives requirements for stormwater discharges associated with small construction from a secific site(s), the ermittee is not required to enforce the rogram to reduce ollutant discharges from such site(s). (b) The ermittee shall review and udate as necessary, the statewide SWMP and MCM imlementation rocedures required by Part III.A.2. Any changes must be included in the statewide annual reorts. Such written rocedures must be maintained on site or in the SWMP and made available for insection by the TCEQ. (c) The ermittee shall continue to require that its construction sites include imlementation of aroriate erosion and sediment control BMPs. The ermittee s construction rogram must ensure the following minimum requirements are effectively imlemented for all small and large construction activities discharging to its MS4. (1) Erosion and Sediment Controls - Design, install and maintain effective erosion controls and sediment controls to minimize the discharge of ollutants from construction sites. (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 ermanently ceased on any ortion of the site, or temorarily ceased on any ortion of the site and will not resume for a eriod exceeding 14 calendar days. Stabilization must be comleted as soon as racticable, but no more than 14 calendar days after the initiation of soil stabilization measures excet as rovided in a. through d. below: a. Where the immediate initiation of stabilization measures after construction activity temorarily or ermanently ceased is recluded by snow cover or 37

47 frozen ground conditions, stabilization measures must be initiated as soon as racticable. In arid, semiarid, and drought-stricken areas, where initiating vegetative stabilization measures immediately is infeasible, alternative stabilization measures must be emloyed as soon as racticable. Where vegetative controls are not feasible due to arid conditions, the ermittee shall immediately install, and within 14 calendar days of a temorary or ermanent cessation of work in any ortion of the site comlete, non-vegetative erosion controls. If nonvegetative controls are not feasible, the ermittee shall install temorary sediment controls as required in item c. below. c. In areas where temorary stabilization measures are infeasible, the ermittee may alternatively utilize erimeter controls. The ermittee shall document in a stormwater ollution revention lan (SWP3) the reason why stabilization measures are not feasible, and must demonstrate that the erimeter controls will retain sediment on site to the extent racticable. d. If the initiation or comletion of vegetative stabilization is affected by circumstances beyond the control of the ermittee, vegetative stabilization must be initiated or comleted 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 stoed for 14 or more additional calendar days. (3) BMPs Design, install, imlement, and maintain effective BMPs to minimize the discharge of ollutants to the MS4. At a minimum, such BMPs must be designed, installed, imlemented, and maintained to: a. Minimize the discharge of ollutants from equiment and vehicle washing, wheel wash water, and other wash waters; b. Minimize the exosure of building materials, building roducts, construction wastes, trash, landscae materials, fertilizers, esticides, herbicides, detergents, sanitary waste, and other materials resent on the site to reciitation and to stormwater; and c. Minimize the discharge of ollutants from sills and leaks. (4) As an alternative to (1) through (3) above, the ermittee shall ensure that all small and large construction activities discharging to its MS4 have develoed and imlemented a SWP3 in accordance with the TPDES CGP TXR (d) Prohibited Discharges - The following discharges are rohibited: (1) Wastewater from washout of concrete and wastewater from water well drilling oerations, unless managed by an aroriate control; (2) Wastewater from washout and cleanout of stucco, aint, from release oils, and other construction materials; 38

48 (3) Fuels, oils, or other ollutants used in vehicle and equiment oeration and maintenance; (4) Soas or solvents used in vehicle and equiment washing; and (5) Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, unless managed by aroriate BMPs. (e) Construction Plan Review Procedures To the extent allowable by state, federal, and local law, the ermittee shall continue to maintain and imlement site lan review rocedures that describe which lans will be reviewed as well as when an oerator may begin construction. This requirement is limited to those sites oerated by the ermittee and its contractors and located within the ermittee s regulated area. The site lan rocedures must meet the following minimum requirements: (1) The site lan review rocedures must incororate consideration of otential water quality imacts. (2) The ermittee may not arove any lans, unless the lans contain aroriate site secific construction site control measures that, at a minimum, meet the requirements described in Part III.B.3.(a) or in the TPDES CGP TXR The ermittee may require and accet a lan, such as a SWP3, that has been develoed ursuant to the TPDES CGP TXR (f) Construction Site Insections and Enforcement To the extent allowable by state, federal, and local law, the ermittee shall continue to imlement rocedures for insecting large and small construction rojects. At a minimum, the ermittee shall conduct insections of sites oerated by the ermittee or its contractors and that are located in the ermittee s regulated area. (1) Insections must occur at a frequency determined by the ermittee, based on the evaluation of factors that are a threat to water quality, such as: soil erosion otential; site sloe; roject size and tye; sensitivity of receiving waterbodies; roximity to receiving waterbodies; non-stormwater discharges; and ast record of non-comliance by the oerators of the construction site. (2) Insections must occur during the active construction hase. a. The ermittee shall develo, imlement, and revise as necessary, written rocedures outlining the insection and enforcement requirements. These rocedures must be maintained at the ermittee s district office and in the statewide SWMP and be made available to TCEQ. b. Insections of construction sites must, at a minimum: (i) Determine whether the site has aroriate coverage under the TPDES CGP TXR If no coverage exists, notify the contractor or the ermittee s own construction site oerator of the need for ermit coverage. 39

49 (ii) Conduct a site insection to determine if control measures have been selected, installed, imlemented, and maintained according to the ermittee s requirements. (iii) Assess comliance with the ermittee s standards, ermit, olicy etc. (iv) Provide a written or electronic insection reort. c. Based on site insection findings, the ermittee shall take all necessary follow-u actions (for examle, follow-u-insections or enforcement) to ensure comliance with ermit requirements and the SWMP. These follow-u and enforcement actions must be tracked and maintained for review by the TCEQ. If necessary, the ermittee shall notify the adjacent MS4 oerators with enforcement authority or the TCEQ Program Suort Section according to Part III.A.3(c). (g) Information submitted by the Public The ermittee shall develo, imlement and maintain rocedures for receit and consideration of information submitted by the ublic. (h) MS4 Staff Training The ermittee shall ensure that all staff whose rimary job duties are related to imlementing the construction stormwater rogram (including ermitting, lan review, construction site insections, maintenance, and enforcement) are informed or trained to conduct these activities. The training may be conducted by the ermittee or by outside trainers. (i) Additional Requirements for Previous Phase I Permitted Areas In addition to all the requirements described above, the ermittee shall meet the following requirements in areas that reviously were ermitted under a Phase I ermit. (1) List of Sites - The ermittees shall maintain a current list of construction sites that discharge directly to the MS4 and that have been issued an NPDES or a TPDES ermit. The list must include the name, location and ermit number of the discharges that have been authorized under an NPDES or TPDES stormwater discharges ermit for construction activities (if known). (2) Education and training The ermittee shall assure aroriate education and training measures for construction site oerators. 40

50 3.2 Program Overview TxDOT s construction stormwater rogram has been develoed and imlemented to reduce the discharge of ollutants into the MS4 from construction sites, and rovide enforcement for both small and large construction sites. The rogram includes: Requirements for design, develoment, and imlementation of aroriate control measures to reduce ollutants discharged into the MS4 from construction sites; Construction lan review rocess using Checklists; Insection of construction sites and enforcement of contract and CGP rovisions ertaining to construction site stormwater runoff; and, Aroriate education and training measures for construction site oerators Requirements and Control Measures TxDOT will assess rogram elements that were described in the revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from its MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas will be fully imlemented by the end of this ermit term. If TCEQ waives requirements for stormwater discharges associated with small construction from a secific site(s), TxDOT is not required to enforce the rogram to reduce ollutant discharges from such site(s) SWMP Udate TxDOT will review and udate as necessary the SWMP and MCM imlementation rocedures required by Part III.A.2 of Permit No. WQ Any changes will be reflected in the annual reorts. Such written rocedures will be maintained at the district offices and in the SWMP and made available for insection by the TCEQ Imlementation of Erosion and Sediment Control BMPs TxDOT will ensure that all small and large construction activities discharging to its MS4 have develoed and imlemented a SWP3 in accordance with the TPDES CGP TXR The MS4 ermit meets the requirements in the CGP; therefore, by maintaining comliance with the CGP, the MS4 ermit requirements are met. In addition, TxDOT construction rojects that require CGP authorization will comly with the ermit requirements. TxDOT s olicy is to design, imlement, and install aroriate ractices and BMPs for soil disturbing activity where a otential for stormwater discharges exists, regardless of the tye of activity or acreage disturbed. The TxDOT roject lans include a Stormwater Pollution Prevention Plan (SWP3) that defines BMPs to control sedimentation and erosion. TxDOT reviews and aroves the SWP3 on its construction rojects. TxDOT will ensure that construction sites within its MS4 design, install, imlement, and maintain effective BMPs to minimize the discharge of ollutants to the TxDOT MS4. At a minimum, TxDOT's BMPs are designed, installed, imlemented and maintained to: 41

51 1) Minimize the discharge of ollutants from equiment and vehicle washing, wheel wash water, and other wash waters; 2) Minimize the exosure of building materials, building roducts, construction wastes, trash, landscae materials, fertilizers, esticides, herbicides, detergents, sanitary waste and other materials resent on the site to reciitation and to stormwater; and, 3) Minimize the discharge of ollutants from sills and leaks. The Environmental Permits, Issues, and Commitments (EPIC) sheet rovides an overview of environmental requirements contained within the roject lans. Project construction lans are reviewed and aroved by TxDOT before the roject moves forward in the Advance Planning & Develoment Deartment, which also reviews the lans, secification and estimate rocesses rior to construction. Stormwater awareness training is required for emloyees that conduct soil-disturbing activities. As art of the EMS rogram, rojects that let after January 1, 2016 require both TxDOT and the contractor to submit an NOI for each roject that disturbs one or more acres. TxDOT is the rimary oerator with control over constructions lans and secifications. The contractor is the rimary oerator with day-to-day oerational control. Projects that let rior to January 1, 2016 require that the contractor sign a Contractor Certification of Comliance with Storm Water Requirements form At TxDOT s CGP ermitted construction sites a Construction Site Notice (CSN) is osted. These notices are osted in a location accessible to the ublic and contain a hone number for the ublic to submit information regarding the site. Comments received from the ublic will be considered by the district engineer or another resonsible TxDOT reresentative. Some routine maintenance activities comleted by TxDOT do not require authorization under the CGP including activities erformed to maintain the original line and grade; hydraulic caacity and original urose of a ditch, channel, or other similar stormwater conveyance; the routine grading of existing dirt roads; and ashalt overlays of existing roads; shoulder blading to restore the shoulder to its original condition; and avement "reworking" oerations if they stay within the limits of the original avement and do not exose the base or sub-grade. If the sub-grade is exosed or if reviously undisturbed land is disturbed (for examle, clearing for staging areas or temorary haul roads), coverage under the CGP could be required Prohibited Discharges The following discharges are rohibited: 1) Wastewater from washout of concrete and wastewater from water well drilling oerations, unless managed by an aroriate control; 42

52 2) Wastewater from washout and cleanout of stucco, aint, from release oils, and other construction materials; 3) Fuels, oils, or other ollutants used in vehicle and equiment oeration and maintenance; 4) Soas or solvents used in vehicle and equiment washing; and, 5) Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, unless managed by aroriate BMPs Construction Plan Review Procedures At the re-construction meeting, TxDOT will notify the Contractor of their TPDES ermitting resonsibilities associated with construction activities, as aroriate. Utility contractors that are working within the ROW must first rovide a Utility Installation Request form, and obtain aroval rior to commencing those construction activities. The aroval form requires the requestor to comly with the Clean Water Act (for examle, obtain TPDES general ermit TXR150000) to develo BMPs to minimize erosion, and to revegetate the roject area. Attachment G contains a Utility Installation Request Form. TxDOT will imlement the CGP in accordance with TxDOT s lans and secifications on all rojects. When TxDOT is discharging to another MS4, if the local jurisdiction has a SWMP requirement that vary(s) from TxDOT lans and secifications, TxDOT will make every effort to reach a mutually accetable solution Construction Site Insections and Enforcement By statute, TxDOT has the ower to control virtually all of the activities occurring within the ROW, but there is little, if any, authority to regulate discharges occurring off the ROW and flowing into state maintained drainage systems. The codification of state law in the rules of the Texas Administrative Code (TAC - Title 43, Part 1, Chater 21, Subchater C) gives TxDOT the ower to construct, maintain, and oerate a drainage system for state highways to accommodate stormwater, which originates within and reaches highway ROWs. TxDOT contracts with others for the construction and sometimes for the maintenance of these systems. As such, contracting is the rimary control for enforcement. TxDOT evaluates the stormwater control measures secified in the SWP3. TxDOT has created a Stormwater Field Insector's Guide to assist TxDOT insectors with identifying any infrastructure stormwater device deficiencies. The guide rovides design criteria for each device, as well as reair rocedures and when maintenance should be scheduled. Sediment will be removed from devices and damaged devices reaired as required by the contract and the CGP. TxDOT imlements the EMS for all construction roject sites that disturb one acre or more of land. The EMS is TxDOT's commitment to imrove environmental comliance erformance at road construction sites across the state. As art of this effort, TxDOT has develoed a number of tools, training oortunities, management ractices and comliance 43

53 requirements for all affected TxDOT ersonnel, consultants, contractors, and other articiants in TxDOT's road construction oerations. Attachment H contains EMS Stage Gate checklists Information Submitted by the Public TxDOT utilizes ublic inut (for examle, the oortunity for ublic comment or ublic meetings) in the imlementation of the MS4 rogram through the Transortation Imrovement Program (TIP) or Statewide Transortation Imrovement Program (STIP). If a ublic meeting is held, a citizen advisory committee is formed, or a similar ublic function is established to allow the ublic an oortunity to articiate in transortation develoment and the associated SWMP imlementation. TxDOT will comly with all alicable state and local ublic notice requirements for the activity. TxDOT also maintains a stormwater web age for reorting sills and illegal duming, and can be found at htt:// MS4 Staff Training Prior to initiation of construction, the contractor will meet with the TxDOT Area Engineer (AE) in a re-construction meeting to discuss stormwater issues for the construction site. TxDOT will ensure contractors are aware of ractices and olicies identified in this section, as well as emhasize the need for comliance. Contractor training requirements are described in Secial Provision , Section for the CRPE, CRPE Alternate, Contractor Suerintendent, etc. TxDOT and contractor training requirements are described in the EMS training matrix (see Attachment B) Additional Requirements for Previous Phase I Permitted Areas In addition to the requirements described above, TxDOT will meet the following requirements in areas that reviously were ermitted under a Phase I ermit. 1) List of sites - TxDOT will maintain a current list of non-txdot construction sites that discharge directly to the MS4 and that have been issued an NPDES or a TPDES ermit. The list will include the name, location and ermit number of the discharges that have been authorized under an NPDES or TPDES stormwater discharges ermit for construction activities (if known). The list will be generated from the submission of NOIs received from dischargers. 2) Education and training TxDOT will assure aroriate education and training measures are rovided for construction site oerators. 3.3 Best Management Practices and Measurable Goals Utilizing the following BMPs, TxDOT will ensure that all small and large construction activities discharging to its MS4 are in accordance with the TPDES CGP TXR

54 3.3.1 Requirements and Control Measures TxDOT will fully imlement all alicable new elements and all alicable elements in newly regulated Phase II MS4 areas by the end of the current ermit term. All new elements and elements in newly regulated Phase II areas comleted will be included in the Annual reort in the reorting year accomlished SWMP Udate TxDOT will review and udate as necessary, the SWMP and MCM imlementation rocedures required by Part III.A.2 of Permit No. WQ Any changes will be reflected in the annual reorts. Any udated written rocedures to the SWMP will be forwarded to and maintained at the district offices Imlementation of Erosion and Sediment Control BMPs All TxDOT construction rojects within the ROW, with NOIs or CSNs, comly with the CGP, TxDOT Standard Secification 2014, and EMS. TxDOT ensures MS4 comliance through monitoring, insections, and enforcement. As stated reviously, for rojects let after January 1, 2016 TxDOT is the rimary oerator with control and resonsibility over construction lans and secifications. The TxDOT contractor is the rimary oerator with oerational control over day-to-day activities at the construction site and is resonsible for ensuring that the SWP3 and other ermit conditions are in comliance. Having both TxDOT and the contractor as rimary oerator on construction sites suorts artnershi for environmental comliance. Projects that let rior to January 1, 2016 require that the contractor sign a Contractor Certification of Comliance with Storm Water Requirements (Form 2458). The DEQC conducts construction joint insections with the TxDOT insector and the contractor CRPE. The insections verify that the contractor has correctly installed and maintained BMPs er the SWP3 site ma and er TxDOT secifications. The joint insection allows the oortunity for the DEQC to rovide training and feedback as aroriate. The DEQC uses TxDOT Form 2448 for these insections. TxDOT will maintain the quantity of Form 2458, for construction sites let rior to January 1, 2016, and the number of Form 2448 for all other sites, comleted during the ermit year and include this quantity in the annual reort for the alicable reorting year Prohibited Discharges TxDOT will udate its list of Prohibited Discharges, as necessary. If changes are made to the list, those changes will be included in the current reorting year annual reort Construction Plan Review Procedures Prior to initiation of construction, the contractor will meet with TxDOT reresentatives in a reconstruction conference to discuss stormwater issues for the construction site. TxDOT will ensure contractors are aware of ractices and olicies identified in this section, as well as emhasize the need for comliance. TxDOT will also 45

55 notify the site oerator of its TPDES ermitting resonsibilities associated with construction activities, as aroriate. A re-conference form is used to document the meeting. An examle of this form is included in Attachment I. TxDOT conducts a reconstruction meeting with the contractor rior to commencement of construction activities that includes an environmental agenda of the roject environmental requirements. Reviewing the environmental requirements for the roject in the reconstruction meeting ensures understanding by all resonsible arties. In addition, the contractor assigns their contractor resonsible erson environmental (CRPE) who is resonsible for ensuring the contractor training is comlete, erforming daily monitoring of BMPs, and articiating in joint District Environmental Quality Coordinator (DEQC) insections with the TxDOT DEQC. TxDOT will track the number of re-conference forms obtained during the ermit year and include this number in the annual reort Construction Site Insections and Enforcement TxDOT construction rojects that disturb one or more acres of land will comly with the CGP, TxDOT Standard Secification 2014, and TxDOT EMS olicy. The DEQC erforms insections of the construction roject sites to verify comliance and takes enforcement action as necessary to ensure comliance. The CRPE monitors the construction site BMPs daily and if necessary takes action to ensure comliance with the CGP, TxDOT Standard Secification 2014, EMS and other environmental requirements. The TxDOT insector erforms SWP3 insections (TxDOT Form 2118) on roject sites every 7 days, or once every 14 days and within 24 hours after 0.5 inches or more of rainfall. Each District decides which of these two intervals is most aroriate for their District. TxDOT works with the contractor on necessary corrective action, maintenance, or need for additional controls as a result of the insection. The enforcement and escalation rocedures are rovided in the instructions on the Form, and through TxDOT training on the comletion of the Form. The DEQC conducts joint Construction Stage Gate Checklist (CSGC) insections with the CRPE and TxDOT insector that occur at minimum within one month of beginning initial construction activities and annually, or if the roject is less than one year when 50% of work has been comleted. The DEQC conducts annual insections of construction rojects using the CSGC Forms 2448 and 2458 to verify BMPs have been correctly installed and maintained. The annual DEQC insection may be used in lace of the joint CSGC insection if both the CRPE and TxDOT insector are resent and involved during insection. Frequency for comleting additional CSGC insections by TxDOT and the contractor CRPE is determined at the reconstruction meeting. TxDOT will obtain the number of CSGC Forms 2448 and 2458 obtained during the ermit year and include this number in the annual reort. 46

56 3.3.7 Information Submitted by the Public TxDOT will reort the number of construction comlaint calls and comlaint forms received during the reorting year in the annual reort MS4 Staff Training TxDOT staff and contractor training requirements are described in Secial Provision , Section for the CRPE, CRPE Alternate, Contractor Suerintendent, etc., TxDOT and contractor training requirements are described in the EMS training matrix in Attachment B. TxDOT will rovide the number of TxDOT staff and contractors that articiated in Secial Provision , Section for the CRPE, CRPE Alternate, Contractor Suerintendent, etc, and EMS training modules during the reorting year in the annual reort Additional Requirements for Previous Phase I Permitted Areas TxDOT will maintain a list of current non-txdot construction sites active during the ermit year and reorted to TxDOT, including the name, location and ermit number of the discharges that have been authorized under an NPDES or TPDES stormwater discharge ermit for construction activities. TxDOT will only reort those received from dischargers. TxDOT will include this list in the annual reort. Education and training of construction site oerators will be included with Section and not reorted as a searate number, as that list will already include the number receiving education and training. 47

57 3.4 BMP Imlementation Schedule, Activity, and Measurable Goals Table 3.1 CONSTRUCTION SITE STORMWATER RUNOFF CONTROL Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug Program Develoment Fully imlement all alicable new elements and all alicable elements in newly regulated Phase II MS4 areas by the end of the current ermit term. All new elements and elements in newly regulated Phase II areas comleted will be included in the annual reort. ENV District Annually/Aug SWMP Udate Review and udate as necessary, the SWMP and MCM imlementation rocedures. Any changes will be reflected in the annual reort. ENV Annually/Aug Erosion and Sediment Control All TxDOT construction rojects within the ROW, with NOIs or CSNs, comly with the CGP, TxDOT Standard Secification 2014, and EMS. Reort the number of Form 2458 for construction sites let rior to January 1, 2016, and the number of Form 2448 for all other sites, obtained during the ermit year. District ENV Annually/Aug Prohibited Discharges Udate the list of Prohibited Discharges, as necessary. If changes are made to the list, those changes will be included in the current reorting year annual reort. ENV Annually/Aug Construction Plan Review Procedures Notify the site oerator of its TPDES ermitting resonsibilities associated with construction activity, as aroriate. Reort the number of reconference forms obtained during the ermit year. District ENV Annually/Aug Construction Site Insections and Enforcement Performs insections of the construction roject sites to verify comliance and takes enforcement action as necessary to ensure comliance. Reort the number of forms 2448 and 2458 obtained during the ermit year. District ENV Annually/Aug Information submitted by the Public Receive, as available, construction calls and comlaint forms. Reort the number construction calls and comlaint forms received during the reorting year. District ENV 48

58 CONSTRUCTION SITE STORMWATER RUNOFF CONTROL Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug MS4 Staff Training Provide contractor training as described in Secial Provision , Section Reort the number of contractors that articiated in Secial Provision , Section for the CRPE, CRPE Alternate, Contractor Suerintendent, etc, and EMS training modules during the reorting year. District ENV THE FOLLOWING BMPs WILL BE PERFORMED ONLY IN PREVIOUSLY PERMITTED PHASE I AREAS Annually/Aug List of Sites Maintain a current list of construction sites active during the ermit year, including the name, location, and ermit number of the discharges that have been authorized under an NPDES or TPDES stormwater discharge ermit. Include the list in the annual reort. District ENV Annually/Aug Education and Training Assure aroriate education and training measures is rovided for construction site oerators. Education and training of construction site oerators will be included with Section and not reorted as a searate number, as that list will already include the number receiving education and training. District ENV 49

59 4.0 MCM 4 - POST-CONSTRUCTION STORMWATER MANAGEMENT IN AREAS OF NEW DEVELOPMENT AND REDEVELOPMENT 4.1 Permit Requirements (a) The ermittee shall continue to develo, imlement and enforce a rogram, to the extent allowable under state, federal, and local law, to control stormwater discharges from new develoment and redeveloed sites that disturb one acre or more, including rojects that disturb less than one acre that are art of a larger common lan of develoment or sale that discharge into the MS4. The rogram must be established for rivate (if any) and ublic develoment sites. The rogram may utilize an offsite mitigation and ayment in lieu of comonents to address this requirement. The ermittee shall assess rogram elements that were described in the revious ermit, modify as necessary, to continue reducing the discharge of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated areas must be fully imlemented by the end of the ermit term. (b) The ermittee shall use, to the extent allowable under state, federal, and local law and local develoment standards, an ordinance or other regulatory mechanism to address ost-construction runoff from new develoment and redeveloment rojects. The ermittee shall establish, imlement, and enforce a requirement for its contractors and its own deartments that develo and redevelo sites to design, install, imlement, and maintain a combination of structural and non-structural BMPs aroriate for the community and that rotects water quality. If the construction of ermanent structures is not feasible due to sace limitations, health and safety concerns, cost effectiveness, or highway construction codes, the ermittee may roose an alternative aroach to TCEQ. Newly regulated areas must have the rogram element fully imlemented by the end of the ermit term. (c) The ermittee shall review and udate as necessary, the statewide SWMP and MCM imlementation rocedures required by Part III.A.2. Any changes must be reflected in the statewide annual reorts. Such written rocedures must be maintained at the ermittee s district office and in the SWMP and made available for insection by TCEQ. (d) The ermittee shall document and maintain records of enforcement actions and make them available for review by the TCEQ. (e) The ermittee shall, to the extent allowable under state, federal, and local law, continue to ensure the long-term oeration and maintenance of structural stormwater control measures owned and oerated by the ermittee. 50

60 4.2 Program Overview TxDOT will continue to develo, imlement and enforce a rogram, to the extent allowable under state, federal, and local law, to control stormwater discharges from new develoment and redeveloed sites that disturb one acre or more, including rojects that disturb less than one acre that are art of a larger common lan of develoment or sale. The rogram has been established for ublic develoment sites within the TxDOT ROW. TxDOT Storm Water Planning and Design Guidelines for New Develoment and Significant Redeveloment, June 2010, are utilized by environmental, lanning and design staff. This guideline includes a descrition of ermanent structural and non-structural control measures to reduce ollutants from roadway runoff, and how the controls will be develoed and incororated into the lanning rocess. The goals of such controls for minimizing water quality imact include: New develoment - limiting increases in erosion and the discharge of ollutants in stormwater as a result of develoment; and, Redeveloment reducing erosion and the discharge of ollutants in stormwater. TxDOT has a well-defined lanning rocess in lace for the develoment of transortation rojects. The transortation lanning rocess incororates water quality and stormwater management in the early decision-making hases on a roject. Stormwater issues are one of the many taken into consideration during the identification of otential alternatives available to meet a roject s needs. Later in the transortation lanning rocess, TxDOT follows the environmental review rocess outlined by the National Environmental Policy Act of 1969 (NEPA) and Federal Highway Administration rules (23 CFR 771) or the state equivalent rule (43 TAC Part 1 Chater 2). TxDOT s environmental review rocess follows strict requirements for ublic involvement, imact assessment, and agency coordination. The environmental assessment (EA) rocess includes the assessment, discussion, and evaluation of water quality, existing conditions, its otential imacts, and alicable mitigation measures. TxDOT is required to coordinate with TCEQ as outlined in the TxDOT/TCEQ MOU (see Attachment A). For tyical highway construction rojects, TxDOT s ost-construction lan design efforts rimarily address stormwater volume reduction/control, velocity dissiation, ollutant reduction, and erosion control ractices. Secifically, the use of vegetated ROW enables infiltration and evaotransiration of stormwater runoff from the TxDOT roadways based on moderate retention and velocity dissiation. The velocity of stormwater discharge is reduced, thus limiting erosion and stream channel degradation and ollutant discharge. TxDOT ROW and new ROW with earthen surfaces are vegetated or re-vegetated according to the secifications included in TxDOT s Roadside Vegetation Management Manual. In addition to the Stormwater Management Guidelines for Construction Activities, TxDOT s Bridge Division s Hydraulic Manual establishes general rocedures for develoment of highway drainage facilities. It includes a survey of existing characteristics, estimates of future characteristics, engineering design criteria, discharge estimates, structure 51

61 requirements, and constraints for the hydraulic design or analysis of highway drainage and receiving facilities. The manual also discusses in some detail stormwater management, erosion control, ollution revention lans, and issues related to managing the quantity and quality of runoff. Post-Construction BMP strategies that TxDOT may emloy are as follows: Structural Controls: Retention/irrigation onds Extended detention (wet/dry basins) Vegetative filter stris Vegetated swales Constructed wetlands Sedimentation onds/tras Infiltration onds Catch basins Grated inlets Outfall velocity dissiation controls Non-Structural Controls: Street sweeing Litter collection No Mow areas Inlet stenciling/stormwater Inlet Markers Identification and Selection of Structural Controls The hydraulics and necessary structural controls for stormwater runoff are identified by TxDOT during the design hase for construction or redeveloment rojects located within the regulated area. TxDOT maintains a number of manuals and guidance documents that are relied uon both during the design hase of these rojects and during the maintenance activities that follow comletion of the rojects. TxDOT will maintain coies of the most recent guidance manuals in locations readily accessible to staff and contractors. TxDOT will continue to use the following manuals and documents. TxDOT will follow long-term oeration and maintenance of structural controls rotocol in the following manuals. 52

62 Roadside Vegetation Management Manual This guidance document was reared by the Vegetation Management Section of the Maintenance Division to suort TxDOT. This document rovides a comrehensive discussion on the establishment and maintenance of vegetative cover. htt://onlinemanuals.txdot.gov/txdotmanuals/veg/index.htm Evaluation and Management of Highway Runoff Water Quality The manual was reared by the Federal Highways Administration (FHWA) and is used by TxDOT highway designers and environmental rofessionals to identify the aroriate imact rediction and mitigation tools available for use during highway roject lanning and develoment activities. The manual has five major sections: Introduction, Coordination with Environmental Agencies and the Public, Highway Runoff Water Quality, Water Quality Imact Assessment, and Best Management Practices. ft://ft.odot.state.or.us/techserv/geo- Environmental/Environmental/Procedural%20Manuals/Water%20Quality/References/Evaluat ion%20and%20management%20of%20highway%20runoff%20water%20quality.df The Hydraulic Design Manual The manual was reared by TxDOT s Design Division to establish general rocedures for develoment of highway drainage facilities. It includes a survey of existing characteristics, estimates of future characteristics, engineering design criteria, discharge estimates, structure requirements, and constraints for the hydraulic design or analysis of highway drainage and receiving facilities. The manual also discusses in some detail stormwater management, erosion control, ollution revention lans, and issues related to managing quantity and quality of runoff. htt://onlinemanuals.txdot.gov/txdotmanuals/hyd/index.htm Program Develoment TxDOT will assess rogram elements that were described in the revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from its MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas will be fully imlemented by the end of this ermit term Ordinances and Other Regulatory Mechanisms TxDOT does not have the legal authority to enforce state environmental laws against third arties. TxDOT must rely comletely on the TCEQ or the local municial government for law enforcement. TxDOT has established, imlements, and enforces a requirement for its contractors, by contract, and its own deartments that develo and redevelo sites to design, install, imlement, and maintain a combination of structural and non-structural BMPs aroriate for the community and that rotects water quality. If the construction of ermanent 53

63 structures is not feasible due to sace limitations, health and safety concerns, cost effectiveness, or highway construction codes, TxDOT may utilize an alternative aroach. Newly regulated areas will have the rogram element fully imlemented by the end of the ermit term SWMP Udate TxDOT will review and udate, as necessary, the SWMP and MCM imlementation rocedures required by Part III.A.2 of Permit No. WQ Any changes will be reflected in the annual reorts. Such written rocedures will be maintained at the district offices and in the SWMP and made available for insection by the TCEQ Documentation and Records TxDOT will document and maintain records of enforcement actions and make them available for review by the TCEQ Long-term Oeration and Maintenance TxDOT will, to the extent allowable under state, federal, and local law, continue to ensure the long-term oeration and maintenance of structural stormwater control measures owned and oerated by TxDOT. 4.3 Best Management Practices and Measurable Goals Permit No. WQ requires that TxDOT maintain stormwater control measures aroriate for its MS4. In addition, TxDOT will maintain all long term ostconstruction stormwater control measures. TxDOT controls will not be located on rivate roerty and TxDOT will solely maintain the resonsibility and accountability for the oeration and maintenance of any controls utilized. Structural controls may include ractices such as ermeable avement and vegetated swales; which are considered to be LID ractices, or GI BMPs. TxDOT is required to insect, where alicable, ost-construction controls to ensure that control measures are oerating correctly and are being maintained. For the urose of Permit No. WQ , redeveloment does not include routine maintenance activities and linear utility installation. Examles of linear utility installation are construction activities that maintain the original line, grade, and hydraulic caacity of the surrounding areas, such as the installation of underground gas lines, fiberotic cable, cable TV, electric, telehone, sewer mains and water mains. Routine maintenance activities are construction activities that are erformed to maintain the original line and grade, hydraulic caacity, or original urose of a facility, including but not limited to: (1) Re-grading of gravel roads or arking lots; (2) stream bank restoration rojects (does not include the lacement of soil material); (3) Cleaning and shaing of existing roadside ditches and culverts that maintains the aroximate original line and grade, and hydraulic caacity of the ditch; (4) Placement of aggregate shoulder backing that makes the transition between the road shoulder and the ditch or embankment; (5) Full deth milling and filling of existing ashalt avements, relacement of concrete avement slabs, and 54

64 similar work that does not exose soil or disturb the bottom six inches of sub-base material; (6) Long-term use of equiment storage areas at or near highway maintenance facilities; (7) Removal of sediment from the edge of the highway to restore a reviously existing sheet-flow drainage connection from the highway surface to the highway ditch or embankment; and (8) Relacement of curbs, gutters, sidewalk and guide rail osts Program Develoment TxDOT will fully imlement all alicable new elements and all alicable elements in newly regulated Phase II MS4 areas by the end of the current ermit term. All new elements and elements in newly regulated Phase II areas comleted will be included in the Annual reort in the reorting year accomlished Ordinances and Other Regulatory Mechanisms TxDOT lacks authority to rohibit or to control ost-construction discharges of stormwater from areas of new develoment and redeveloment located outside of the ROW. New develoment and redeveloment rojects within the ROW are under TxDOT control and are regulated through contract agreement during construction. TxDOT olicy requires all new develoment and re-develoment rojects, including highway construction subject to the TCEQ Stormwater CGP, to include ermanent controls aroriate for the roject and for local water bodies. Permanent controls may be structural or non-structural in nature. Because highway rojects are linear in nature and ROW is often limited, non-structural controls are frequently necessary and are considered adequate if the construction of ermanent structures is not feasible due to sace limitations, health and safety concerns, cost effectiveness, or highway construction codes. TxDOT will include in its current year annual reort any changes to its regulatory mechanism SWMP Udate TxDOT will review and udate, as necessary, the SWMP and MCM imlementation rocedures required by Part III.A.2 of Permit No. WQ Any changes will be reflected in the annual reorts if udates are made. Any udated written rocedures to the SWMP will be forwarded to and maintained at the district offices Documentation and Records TxDOT will retain all associated records for at least three years after coverage under this ermit terminates and make them available for TCEQ review Long-term Oeration and Maintenance TxDOT ersonnel or TxDOT aroved consultants will routinely drive the regulated area to insect and routinely maintain ermanent control measures and ensure adequate long-term oeration of BMPs. Maintenance of ermanent controls includes mowing, reair of erosion features, ond sediment removal, etc. TxDOT currently has design standards that ensure comliance for structural and non-structural runoff controls. 55

65 TxDOT will include in its annual reort to TCEQ the amount of maintenance activities erformed on ost construction controls. The reort will include the cost for maintenance, and the tye of ost construction control maintained. 56

66 4.4 BMP Imlementation Schedule, Activity, and Measurable Goals Table 4.1 POST-CONSTRUCTION STORMWATER MANAGEMENT IN AREAS OF NEW DEVELOPMENT AND REDEVELOPMENT Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug Program Develoment Fully imlement all alicable new elements and all alicable elements in newly regulated Phase II MS4 areas by the end of the current ermit term. All new elements and elements in newly regulated Phase II areas comleted will be included in the Annual reort. ENV District Annually/Aug Ordinances and Other Regulatory Mechanisms Regulate incidents and MS4 water quality issues related to areas of new develoment and redeveloment that cause erosion or similar water quality issues. Reort any changes to current regulatory mechanism, if made. District ENV Annually/Aug SWMP Udate Review and udate as necessary, the SWMP and MCM imlementation rocedures. Any changes will be reflected in the annual reorts. ENV Annually/Aug Documentation and Records Retain all associated records for at least three years after coverage under this ermit terminates. Make records available for review by the TCEQ. District ENV Annually/Aug Long-term Oeration and Maintenance Insect and routinely maintain ermanent control measures and ensure adequate longterm oeration of BMPs. Include the amount of maintenance activities erformed on ost construction controls in the annual reort, this will include costs for maintenance, and the tye of ost construction control maintained. District ENV 57

67 5.0 MCM 5 - POLLUTION PREVENTION AND GOOD HOUSEKEEPING FOR TRANSPORTATION OPERATIONS 5.1 Permit Requirements (a) Program develoment The ermittee shall continue to develo and imlement an oeration and maintenance rogram, including an emloyee training comonent that has the ultimate goal of reventing or reducing ollutant runoff from roadway activities and areas owned by the ermittee including, but not limited to, ROW maintenance; street, road, or highway maintenance; fleet and building maintenance; stormwater system maintenance; new construction and land disturbances; vehicle and equiment maintenance and storage yards; and salt/sand storage locations. The ermittee shall assess rogram elements that were described in the revious ermit, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharges of ollutants from the MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas must be fully imlemented by the end of this ermit term. See also Part III.A.1.(g). (b) Permittee-owned Facilities and Control Inventory The ermittee shall develo and maintain an inventory of facilities and stormwater controls that it owns and oerates within the regulated areas of the MS4. If feasible, the inventory may include all alicable ermit numbers, registration numbers, and authorizations for each facility or controls. The inventory must be available for review by TCEQ and must include, but not limited to, the following, as alicable: (1) Equiment storage and maintenance facilities; (2) Fuel storage facilities; (3) Materials storage facilities; (4) Pesticide storage facilities; (5) Buildings, including office buildings; (6) Parking lots; (7) Salt storage facilities; (8) Street reair and maintenance sites; (9) Vehicle storage and maintenance yards; (10) Rest areas; and (11) Structural stormwater controls. 58

68 (c) Training and Education The ermittee shall continue to inform or train aroriate emloyees involved in imlementing ollution revention and good housekeeing ractices. The ermittee shall maintain a training attendance list for insection by TCEQ when requested. (d) Disosal of Waste Material Waste materials removed from the MS4s must be disosed of in accordance with 30 TAC Chaters 330 or 335, as alicable. (e) Contractor Requirements and Oversight (1) Any contractors hired by the ermittee to erform maintenance activities on ermittee-owned facilities must be contractually required to comly with all of the stormwater control measures, good housekeeing ractices, and facility-secific stormwater management oerating rocedures described in Parts III B.5. (2) The ermittee shall rovide oversight of contractor activities to ensure that contractors are using aroriate control measures and SOPs. Oversight rocedures must be develoed before the end of the ermit term and maintained at the ermittee s district office or at the headquarters and made available for insection by TCEQ. (f) Roadway Oeration and Maintenance Activities (1) Assessment of ermittee-owned oerations The ermittee shall evaluate oeration and maintenance (O&M) activities for their otential to discharge ollutants in stormwater, including, but not limited to: a. Road and arking lot maintenance may include such areas as othole reair, avement marking, sealing, and re-aving; b. Bridge maintenance may include such areas as re-chiing, grinding, and saw cutting; c. Cold weather oerations, including lowing, sanding, and alication of deicing and anti-icing comounds and maintenance of snow disosal areas; and d. ROW maintenance, including mowing, herbicide and esticide alication, and lanting vegetation. (2) The ermittee shall identify POCs that could be discharged from the above O&M activities (for examle: metals; chlorides; hydrocarbons such as benzene, toluene, ethyl benzene, and xylenes; sediment; and trash). (3) The ermittee shall develo and imlement a set of ollution revention measures that will reduce the discharge of ollutants in stormwater from the above activities. These ollution revention measures may include the following examles: a. Relacing materials and chemicals with more environmentally benign materials or methods; 59

69 b. Changing oerations to minimize the exosure or mobilization of ollutants to revent them from entering surface waters; and c. Placing barriers around or conducting runoff away from deicing chemical storage areas to revent discharge into surface waters. (4) Insection of ollution revention measures - All ollution revention measures imlemented at ermittee-owned facilities must be visually insected at a frequency determined by the ermittee to ensure they are working roerly. A log of insections must be maintained at the ermittee s district office and made available for review by the TCEQ uon request. (g) Structural Control Maintenance If BMPs include structural controls, maintenance of the controls must be erformed at a frequency determined by the ermittee and consistent with maintaining the effectiveness of the BMP. (h) Additional Requirements for Previous Phase I Permitted Areas In addition to all the requirements described above, the ermittee shall meet the following requirements in areas that were reviously ermitted under a Phase I ermit. Pesticide, Herbicide, and Fertilizer Alication and Management a. Landscae maintenance The ermittee shall evaluate the materials used and activities erformed on ublic saces owned and oerated by the ermittee such as rest areas, easements, ublic ROWs, and other oen saces for ollution revention oortunities. Maintenance activities for the turf landscaed ortions of these areas may include mowing, fertilization, esticide alication, and irrigation. Tyical ollutants include sediment, nutrients, hydrocarbons, esticides, herbicides, and organic debris. b. The ermittee shall imlement the following ractices to minimize landscaingrelated ollutant generation with regard to ublic saces owned and oerated by the ermittee: (i) Educational activities, ermits, certifications, and other measures for the ermittee s alicators and distributors. (ii) Pest management measures that encourage non-chemical solutions where feasible. Examles include: (a) Use of native lants or xeriscaing; (b) Keeing cliings and leaves out of the MS4 and the streets by encouraging mulching, comosting, or landfilling; (c) Limiting alication of esticides and fertilizers if reciitation is forecasted within 24 hours, or as secified in label instructions; and (d) Reducing mowing of grass to allow for greater ollutant removal, but not jeoardizing motorist safety. 60

70 c. The ermittee shall develo schedules for chemical alication in ublic saces owned and oerated by the ermittee that minimizes the discharge of ollutants from the alication due to irrigation and exected reciitation. d. The ermittee shall ensure collection and roer disosal of the ermittee s unused esticides, herbicides, and fertilizers. 5.2 Program Overview Program Develoment TxDOT will assess rogram elements that were described in the revious ermits, modify as necessary, and develo and imlement new elements, as necessary, to continue reducing the discharge of ollutants from its MS4 to the MEP. New elements and all elements in newly regulated Phase II MS4 areas will be fully imlemented by the end of this ermit term TxDOT-Owned Facilities and Control Inventory TxDOT does not own or oerate facilities subject to the TCEQ Industrial Stormwater Multi-Sector General Permit (MSGP). There are no TxDOT activities that are subject to the TCEQ MSGP. Within the ermitted boundary, TxDOT does not oerate or maintain the following tyes of oerations: ark and oen sace; waste transfer stations; comosting facilities; hazardous waste disosal facilities; hazardous waste handling and transfer facilities; incinerators; landfills; schools, libraries, olice stations, fire stations, and office buildings; arking lots; golf courses; swimming ools; recycling facilities; or solid waste handling and transfer facilities. TxDOT will develo and maintain a list of TxDOT owned non-roadway facilities within the regulated area. These facilities may include: 1) Equiment storage and maintenance facilities; 2) Fuel storage facilities; 3) Materials storage facilities; 4) Pesticide storage facilities; 5) Buildings, including office buildings; 6) Parking lots; 7) Salt storage facilities; 8) Street reair and maintenance sites; 9) Vehicle storage and maintenance yards; 10) Rest areas; and 11) Structural stormwater controls. 61

71 5.2.3 Training and Education TxDOT does not have MS4-secific field staff. Field staff consist of multi-discilinary ersonnel assigned by the district engineer, and resonsibilities range from maintenance to engineering. Staff erform several tasks (for examle, construction insection, emergency resonse, and environmental rocesses) during normal job resonsibilities. Personnel who erform MS4 oerations are rovided with training that contains information on identifying illicit discharge, reventing, and reducing otential stormwater ollution from the TxDOT MS4. Attachment B lists all alicable training classes; the list resented in Attachment B may change due to udates, new training module develoment, and/or removal of outdated materials Disosal of Waste Material Waste materials removed from the TxDOT regulated area will be disosed of in accordance with 30 TAC Chaters 330 or 335, as alicable. The frequency of finding unknown substances on the highway varies. The characterization of unknowns usually results in costly testing to first classify the material. A waste can be classified as hazardous by the EPA because it is listed, it exhibits hazardous characteristics, or it is a mixture of wastes that contains a listed waste or a characteristic waste. The wastes may be saturating soils or within sediment encountered during a maintenance activity. There is a otential for the roblem to become magnified when dealing with unlabeled waste drums imroerly stored or aearing on the ROW. When waste is found on the ROW from an unknown source and/or is unidentified, the available otions are usually limited to analytical testing before disosal. TxDOT ensures all hazardous waste, used motor vehicle fluids, and other waste used by TxDOT emloyees are disosed of in accordance with alicable regulations and are not exosed to stormwater runoff. In addition, TxDOT has a recycling rogram that is in effect as art of its overall waste reduction effort. Since there are no residents in the TxDOT MS4 or ROW, TxDOT does not oerate a household collection rogram. However, TxDOT does suort, ublicize, and romote related rograms to its emloyees and when contacted by the ublic. TxDOT will rovide them with the best available information on a service in their community and/or area. As a BMP, TxDOT has outsourced a large ercentage of general auto reairs, including oil changes. Dredge soils, accumulated sediment, and floatables removed from the MS4 will be stockiled or disosed of in a local landfill or uland locations as necessary Contractor Requirements and Oversight The rimary use of the ROW is to accommodate the state highway system. However, other utilities are allowed to use the ROW under certain circumstances. TxDOT s utility olicy alies to underground, surface, or overhead facilities. These are rivate lines as well as ublic, including ower transmission, telehone, telegrah, television cable, water, gas, 62

72 oil, etroleum roducts, chemicals, steam, sanitary sewer and similar lines. TxDOT utilizes a utility ermit rocess with intent to regulate the location, design and methods for installation and adjustment of utility lines on state-controlled highways Roadway Oeration and Maintenance Activities The Pollution Prevention/Good Housekeeing MCM consists of BMPs that focus on training and the revention or reduction of ollutants in runoff from transortation oerations that occur within the TxDOT regulated area. TxDOT has existing good housekeeing measures and non-structural BMPs that reduce the discharge of ollutants from the following transortation oerations. Street, road, or highway maintenance; Fleet and building maintenance; Stormwater system maintenance; New construction and land disturbances; Vehicle and equiment maintenance and storage yards; and, Salt/sand storage locations Structural Control Maintenance Due to the linear nature of TxDOT s MS4 (for examle, highway alignments), TxDOT roadways rimarily use vegetative controls that ensure water quality. The most common structural controls used by TxDOT are vegetative controls/filters as follows: Grassed channels, waterways, ditches, or swales designed to inhibit erosion and enhance the settling of susended solids; and. Overland flow through a filter stri where such stris consist of grass or forested vegetation designed to filter ollutants from sheet flow runoff and increase filtration. TxDOT structural control measures may also include the following: Retention/irrigation onds; Extended detention basin (wet/dry basins); Constructed wetlands; Sand filters; Sedimentation onds/tras; Infiltration onds; Catch basins; Grated inlets; and, Outfall velocity dissiation controls. 63

73 Additionally, new secification of materials used to construct roadways such as ermeable friction courses (PFC) also serve as a filter for runoff, as stormwater flows through PFC. A PFC was originally designed to reduce visibility imairment on windshields due to stormwater vehicular sray. This technology is a key examle of TxDOT identifying a structural control that not only imroves water quality, but also has a dual use of imroving ublic safety. TxDOT designs stormwater structural controls in a manner to reduce the discharge of ollutants to the MEP. TxDOT utilizes the following manuals, design secifications, and maintenance guidance: TxDOT's manual entitled Stormwater Management Guidelines for Construction Activities rovides guidelines to revent otential erosion and ollutants from rojects from flowing into WUS. The manual also rovides guidelines for each structural control device, including height, width, deth, and drainage area design requirements; TxDOT maintains stringent design secifications, ensuring structural goals meet water quality requirements; Structural control measures can be used alone or in combination to address sitesecific highway runoff ollution roblems. Section 5.2 of the Stormwater Management Guidelines for Construction Activities, found at htts://ft.dot.state.tx.us/ub/txdot-info/env/storm/5.0sedimentationcontrol.df describes additional structural control measures as well as the aroriate usage and tyical design efforts; and, The effectiveness of controls is a function of variables related to site conditions, highway design, surrounding water quality, and other stormwater considerations Additional Requirements for Previous Phase I Permitted Areas In addition to all of the requirements described above, TxDOT will meet the following requirements in areas that were reviously ermitted under a Phase I ermit. Pesticide, Herbicide, and Fertilizer Alication and Management a) Landscae maintenance TxDOT will evaluate the materials used and activities erformed on ublic saces owned and oerated by TxDOT such as rest areas, easements, ublic ROWs, and other oen saces for ollution revention oortunities. Maintenance activities for the turf landscaed ortions of these areas may include mowing, fertilization, esticide alication, and irrigation. Tyical ollutants include sediment, nutrients, hydrocarbons, esticides, herbicides, and organic debris. b) TxDOT will imlement the following ractices to minimize landscaing-related ollutant generation with regard to ublic saces owned and oerated by TxDOT: 64

74 1) Educational activities, ermits, certifications, and other measures for the ermittee s alicators and distributors. 2) Pest management measures that encourage non-chemical solutions where feasible. Examles include: (a) Use of native lants or xeriscaing; (b) Keeing cliings and leaves out of the MS4 and the streets by encouraging mulching, comosting, or landfilling; (c) Limiting alication of esticides and fertilizers if reciitation is forecasted within 24 hours, or as secified in label instructions; and, (d) Reducing mowing of grass to allow for greater ollutant removal, but not jeoardizing motorist safety. c) TxDOT will develo schedules for chemical alication in ublic saces owned and oerated by the ermittee that minimizes the discharge of ollutants from the alication due to irrigation and exected reciitation. d) TxDOT will ensure collection and roer disosal of the ermittee s unused esticides, herbicides, and fertilizers. 5.3 Best Management Practices and Measurable Goals Program Develoment TxDOT will fully imlement all alicable new elements and all alicable elements in newly regulated Phase II MS4 areas by the end of the current ermit term. All new elements and elements in newly regulated Phase II areas comleted will be included in the Annual reort in the reorting year accomlished TxDOT-Owned Facilities and Control Inventory TxDOT will ensure insections of good housekeeing and related BMPs are comleted once er ermit term at facilities within or immediately adjacent to the regulated area by imlementing the following BMPs: 1) TxDOT will comlete the Facility Environmental Comliance Survey at least once during the ermit term for each facility within or adjacent to the ROW within the MS4. A TxDOT team will insect TxDOT maintenance facility oerations in the following rogram areas at each TxDOT maintenance facility: stormwater, solid waste management, hazardous waste management, used oil and oil filter management, used antifreeze management, used lead acid battery management, scra tire management, general housekeeing, equiment washing wastewater management, sill revention control and countermeasure (SPCC) lanning, and etroleum storage tank management. Attachment J contains the TxDOT Facility Environmental Comliance Survey. 65

75 TxDOT will include the number of insections comleted during the ermit year in the annual reort. 2) TxDOT ersonnel or TxDOT aroved consultants will insect and maintain ermanent structural control measures and ensure adequate long-term oeration of BMPs. Maintenance of ermanent structural controls includes reair of erosion features, removal of sediment and debris, etc. TxDOT currently has design standards that ensure comliance for structural and non-structural runoff controls. TxDOT will udate its inventory and assess the status of the structural controls as determined by TxDOT. TxDOT will include the number of insections comleted during the ermit year in the annual reort. 3) TxDOT ENV will ma/locate ermanent structural controls, such as detention/irrigation onds, hazardous waste tras, sand filter tras, infiltration onds, or catch basins. TxDOT will erform the maing of 5 districts er year or will erform the maing of the entire MS4 within the 5-year ermit term. A ma will be included in the annual reorts. 4) TxDOT s rocedure for disosal of dredged soil and accumulated sediment from structural controls is to disose of sediment into either uland locations or landfills. This rocedure will not result in re-deosition of sediment into the system, and assures roer disosal of sediments in accordance with 30 TAC Chater 330 or 335 rules. Floatables that are collected will be disosed of in a municial landfill. TxDOT will reort the number of structural controls receiving maintenance each year in the annual reort Training and Education TxDOT emloyees who erform work that could affect stormwater within the MS4 attend at least one of the training classes listed in Attachment B er ermit term. TxDOT requires all in-house ersonnel handling and alying herbicides, esticides, and fertilizers take a 12-hour training course and become licensed ground alicators. Licensing is achieved by assing an examination administered by the Texas Deartment of Agriculture. An annual eight-hour refresher course is required for licensed alicators. Training rograms familiarize TxDOT emloyees about office waste recycling. TxDOT continues to educate affected ersonnel concerning recycling of waste oil, batteries and tires; disosal of hazardous materials and solvents; and roer removal of asbestos and lead-based aint. Since 1995, TxDOT has been a member of the Recycling Develoment Marketing Board, and TxDOT has develoed a Recycling and Recycled Products Program geared toward road construction and maintenance, offices, equiment fleet, buildings, break areas, and cafeterias. Training classes are listed in Attachment B. TxDOT will reort the number of emloyees and contractors that received training during the ermit year in the annual reort. 66

76 5.3.4 Disosal of Waste Material TxDOT manages the removal of waste roducts threatening water quality on the ROW by: Checking the EPA list of hazardous chemical names if known. EPA also rovides a list of sources that generate hazardous waste and should be checked; Understanding the rocess of identification and disosal; Testing the waste for hazardous characteristics; and, By removing the subject material from the ROW as quickly as ossible to avoid otential migration and further contamination. The discharge or disosal of used motor vehicle fluids and household hazardous wastes, and the intentional disosal of collected quantities of grass cliings, leaf litter, and animal wastes into the MS4 is rohibited. TxDOT will reort the cost, and volume if available, of waste material disosed of each year in the annual reort Contractor Requirements and Oversight Under existing laws, various utility firms and agencies have a legal right to install their lines along and across state highways. TxDOT will assure that its olicies governing the design, location, and methods of installation are set out in the Maintenance Oerations Manual (found at htt://onlinemanuals.txdot.gov/txdotmanuals/oe/oe.df), and in the Utility Accommodation Policy Manual maintained by the ROW Division. The ROW Division s Utility Manual (found at htt://onlinemanuals.txdot.gov/txdotmanuals/utl/index.htm) are imlemented by contractors. TxDOT will give guidance in the administration of utility adjustments or financial articiation therein, where alicable. Although difficult to determine the legal status of some of the roosed installations, TxDOT maintains its rights to designate the location and conditions that will govern their installation and maintenance. TxDOT receives requests to temorarily use highway ROW for investigation and remediation of leaking etroleum storage tanks (LPST). The alicants are both rivate roerty owners and ublic entities. Through cooeration with TCEQ, TxDOT is successfully using an agreement rocess with the LPST site owner and contractor to manage the LPST investigation and remediation oerations on TxDOT ROW. Any remediation involving the ROW requires TxDOT aroval. TxDOT will reort the number of requests received from contractors during the ermit year in the annual reort. Any issues relayed to contractor oerations will also be included, as necessary, in the annual reort Roadway Oeration and Maintenance Activities TxDOT oerates and maintains highways in a manner to minimize the discharge of ollutants from road reair, equiment yards, and material storage/maintenance facilities to the MEP. BMPs and statewide rograms described throughout this SWMP have the rimary 67

77 goal of minimizing ollutants from roadways, as the highways are TxDOT s rimary MS4 area of oeration. In addition, TxDOT imlements the following BMPs to minimize ollutant discharge: 1) Assessment of ermittee-owned oerations TxDOT has evaluated oeration and maintenance (O&M) activities for their otential to discharge ollutants in stormwater. TxDOT's findings for each ermit requirement (in italics) is: a) Road and arking lot maintenance may include such areas as othole reair, avement marking, sealing, and re-aving; TxDOT engages in earth-disturbing oerations during regular maintenance of roadways. These oerations, such as shoulder blading and ditch cleaning, do not resently meet the definition of construction activities as regulated by the TPDES rogram, but TxDOT encourages the use of controls to limit erosion and sedimentation resulting from these rojects. Most highway maintenance sites exerience little erosion since the work is erformed as follows: At the roer time of year (season); At a location rotected from sensitive environments; With minimal land area disturbance; and, Only after an investigation/knowledge of area soils. During usual maintenance, minimal amounts of land area are disturbed or rehabilitated into additional aved surface areas, which could increase stormwater runoff. Ditch work is scheduled in seasons when the vegetation will recover, or seeding, sodding, and fertilizing could safely be utilized. b) Bridge maintenance may include such areas as re-chiing, grinding, and saw cutting; Bridge aint removal and alication rojects are closely scrutinized to ensure otentially hazardous materials do not adversely affect the environment. Sand blasting has tyically been used in the cleaning and removal of aint from equiment and structures, articularly on maintenance of existing bridges. New air control regulations limiting airborne articles and the work locations near water imoundments has laced a greater awareness of the otential for environmental imact to receiving waters. Old aints often contain a substantial amount of heavy metals (e.g., lead, chromium), with some of the newer aints containing volatile organic comounds (VOCs). Before aint is to be removed, it is to be tested for heavy metals (esecially lead), and where susected, asbestos. If lead is resent, all blast material will be contained and collected. Blast material is to be tested for hazardous materials and disosed of roerly. TxDOT, at several levels, is working with state and federal agencies in researching methods of encasulating the resulting 68

78 contaminant (usually lead and/or asbestos) and containing blast sand into reusable material such as concrete or clay bricks. If asbestos is resent, sand blasting is not allowed. Heavy equiment and building aint removal and alication rojects will continue to be erformed by contract and state labor. c) Cold weather oerations, including lowing, sanding, and alication of deicing and anti-icing comounds and maintenance of snow disosal areas; and Nothing is more imortant than safety to TxDOT esecially during harsh winter weather. TxDOT's rimary objective is to rovide motorists with safe travel on all of the roadways we maintain. We do this through the strategic use of various resources at our disosal as well as through the dedication, determination and teamwork of the men and women of TxDOT. Roadways are rioritized by Interstate, U.S. Highway, State Highway, and Farmto-Market as well as bridges, overasses, high traffic interchanges, and high traffic roadways. Local authorities are resonsible for city and county roads. TxDOT crews begin rearing for winter weather early in the season. Equiment is inventoried, insected and calibrated for quick resonse. Pre-icing and de-icing materials are inventoried and ordered, as needed. Stockiles are relenished with enough materials for a multile day event and emergency contracts are readied, just in case. Watch for Ice on Bridges signs are oened at the beginning of the season. Activities that occur before a redicted ice/snow event include: Equiment Prearations: o o o o All equiment is serviced; Sreader boxes are installed on dum trucks; Sreader equiment is calibrated to deliver correct material amounts; and, Heavy equiment loaders are staged and oerable. Other Prearations: o o o o o Routes are determined and assigned according to winter weather lans; Sand and chemical stockiles are strategically located in areas exected to be imacted; TxDOT monitors weather reorts and communicates with nearby districts to determine if hel is needed; If needed, crews may be disatched to re-treat bridges and overasses; and, Districts articiate in National Weather Service conference calls. 69

79 During an Ice/Snow Event: o o o o o o Suervisors continually monitor weather and road conditions, traffic cameras, road sensors, hotlines and management reorts; Personnel and equiment adjustments are made as needed; Crews sread sand and re-icer or de-icer materials along assigned routes; Work continues 24/7 to kee roadways assable; Public Information Officers work with the media (newsaers, radio, TV) and through social media networks (Twitter, Facebook, etc.) to get road condition information out to the ublic; and, Road conditions are udated on TxDOT s Web site. After an Ice/Snow Event: o o o Material stockiles are relenished to be ready for the next event; Roadways are swet clean of excess sand or other materials; and, Winter lans are evaluated for effectiveness and adjusted if needed. Materials Used o o o o o Pre-icing: Liquid magnesium chloride is rimarily srayed on bridges and overasses before a storm to hel revent a hard bond of ice, reduce snow buildu and to seed snow and ice breaku; De-icing: Magnesium chloride ellets are mixed with sand to hel remove thick layers of ice already on the road. Magnesium chloride is made with natural sea salt and is less corrosive than rock salt and more environmentally friendly than baking soda; Grade 5 Sand: used to imrove traction and as a mixing agent for magnesium chloride; Salt: still referred in some situations because it is very fast-acting. Sometimes used to free u stalled trucks on an icy road; and, Calcium Magnesium Acetate: chemical formulation of dolomitic lime and acetic acid. Used in a granular form, it is easier to sread with ickus than the larger bulk bags of magnesium chloride. Removal of snow and ice from TxDOT roadways is classified as an emergency oeration that takes recedence over all other work to ensure ublic safety. Deicing salt is used on a limited basis by TxDOT. The referred method of maintaining a safe roadway during icy conditions is through the use of sand without salt. Only during the most severe conditions will salt be mixed with the sand, at aroximately 100 ounds of salt er cubic yard of sand. During and 70

80 after the icy conditions, insections are conducted to ensure roer cleanu oerations minimize ollutant discharge from the MS4. d) ROW maintenance, including mowing, herbicide and esticide alication, and lanting vegetation. Mowing is addressed in Section Although numerous structural controls are available to reduce ollutant loading, TxDOT s management ractices rely heavily on vegetation and re-vegetation management rinciles. TxDOT imlements controls to reduce the discharge of ollutants related to the storage and alication of esticides, herbicides, and fertilizers, alied by TxDOT s emloyees or contractors, to ublic ROW, or other TxDOT roerty. TxDOT has documented its management of roadside vegetation in the Roadside Vegetation Management Manual as follows: The uroses of the vegetation management guidelines are to: i) Enhance the safety of the traveling ublic; ii) Enhance environmental rotection; iii) Promote and reserve native wildlife habitats and native flora throughout the state; iv) Mitigate erosion while roviding adequate drainage; and v) Promote coordination and efficiency in maintenance activities; Vegetation management includes roagation and control of vegetation that is accomlished by hysical means of hand-ulling, hoeing, lowing, cultivating, trimming, and mowing. Chemical methods include the alication of aroved herbicides to control secific vegetation roblems; The manual describes roer selection of herbicides, alication rates, and various factors that contribute to roer usage; TxDOT s herbicide rogram is based uon extensive research for chemicals which will rovide the desired control of the target secies while resenting the minimum ossibility of harm to the environment, the alicator, or to the traveling ublic; Emloyees alying herbicides are licensed by the state and furthermore, TxDOT arranges annual training workshos for TxDOT maintenance ersonnel, subcontractors, and contractors. Materials include information about vegetation management; The Texas Agriculture Code requires TxDOT emloyees to ossess a valid, non-commercial, esticide alicator's license rior to alying herbicide on the transortation system ROW, or on the grounds of any TxDOT facility. The training reares TxDOT emloyees to test for a non-commercial esticide alicator's license from the Texas Deartment of Agriculture (TDA) and introduces TxDOT emloyees to TxDOT s herbicide rogram. This course is offered to maintenance ersonnel. Once licensed, alicators must attend a TxDOT training session or watch continuing education videos on an annual 71

81 basis. Also in accordance with TDA requirements, TxDOT maintains herbicide alication records for two years after herbicide alication; The lan calls for strict coordination between mowing and herbicide oerations. As an examle, TxDOT may oversray an area, which allows the herbicide to translocate to the target secies root system; While not as common, TxDOT does require insect esticide alications for worker and ublic safety, fire ant areas, bees hives, and other insect nests in TxDOT ROW and oerational areas including rest stos and signal boxes; and, TxDOT s Secifications for Construction and Maintenance of Highways, Streets, and Bridges, Item 166.2, secifies: the use of a comlete fertilizer containing nitrogen (N), hoshorous (P), and otash (K) nutrients unless otherwise secified on the lans; at least 50% of the nitrogen comonent must be of a slow-release formulation; and, ensures that fertilizer is in an accetable condition for distribution in containers labeled with the analysis. Item secifies that the fertilizer is delivered and alied uniformly at a rate equal to 100 lb. of nitrogen er acre or at the analysis and rate secified on the lans. Fertilizers are normally alied as a one-time item nearing the end of initial construction of a roadway and vegetation is being established. 2) TxDOT has identified ollutants of concern that could be discharged from the above O&M activities. Potential ollutants are as follows: Metals, secifically lead, coer, and chlorides; Hydrocarbons, secifically oil and grease; Sediment; and, Trash. 3) TxDOT has develoed and imlements a set of ollution revention measures that will reduce the discharge of ollutants in stormwater from the following activities: Relacing materials and chemicals with more environmentally benign materials or methods. There are numerous chemicals being registered by the EPA for both agricultural (cro) and ROW (non-cro) situations. Some of these chemicals have roven to rovide excellent benefits to the vegetation manager in over-coming and/or controlling secific vegetation roblems along the transortation system. TxDOT does extensive research annually on herbicides to ensure it is using the best, latest, and safest EPA aroved herbicides. Changing oerations to minimize the exosure or mobilization of ollutants to revent them from entering surface waters. TxDOT has incororated, where alicable, a PFC surface treatment into roadway construction - the latest 72

82 controls for stormwater quality since A PFC reduces slash and sray from vehicular traffic, minimizing the ollutant wash-off and reducing otential ollutant transort. TxDOT, through research and testing, determined that PFC has roven to reduce a certain ercentage of ollutants before they reach surface waters. TxDOT studies have indicated a concentration reduction of the following arameters of concerns: 88 ercent reduction of Total Susended Solids (TSS); 63 ercent reduction of Total Phoshorus; 57 ercent reduction of Total coer; 88 ercent reduction of Total lead; 84 ercent reduction of Total zinc; and, 40 ercent reduction of dissolved zinc. Placing barriers around or conducting runoff away from deicing salt/rock storage areas to revent discharge into surface waters. TxDOT has berms or barriers around the deicing salt/rock storage areas. Some districts store salt/rock inside the building. TxDOT has been moving toward using a much lower salt concentration brine water for deicing and re-icing. 4) Perform insections of ollution revention measures - All ollution revention measures imlemented at TxDOT-owned facilities will be visually insected once er ermit term. Insection forms will be maintained at the TxDOT s district offices and made available for review by the TCEQ uon request. TxDOT erforms and submits its findings in Section above. 5) Mowing and Vegetation Management for Street, Road, or Highway Maintenance Mowing and vegetation management are an integral art of TxDOT's highway maintenance rogram. The wildflower rogram is art of a comrehensive vegetation management rogram. It encourages the growth of native secies that require less mowing and care. The native grasses and wildflowers hel to conserve water, control erosion and rovide a habitat for wildlife. The deartment normally lants wildflowers annually and has a multi-million dollar annual landscaing budget. The amounts vary each year deending on its need. Mowing is delayed until wildflowers have roduced mature seeds to assure the reservation and roagation of wildflower secies. Detailed information on the wildflower rogram, as well as tyes of mowing, secial situations mowing and litter icku, and non-mow areas, are located in the Roadside Vegetation Management Manual, (htt://onlinemanuals.txdot.gov/txdotmanuals/veg/index.htm). TxDOT will reort the number of miles mowed during the ermit year and include in the annual reort. 73

83 6) Storm Sewer System and Drainage Ditch Cleaning Drainage ditches are cleaned on an as-needed basis during the summer. During the winter, all state-owned drainage ditches are systematically cleaned. Stormwater structures are cleaned on an as-needed basis as identified by insection rocedures. TxDOT will reort the number of miles of ditches cleaned during the ermit year and include in the annual reort. 7) Material Storage at Maintenance Facilities TxDOT's Occuational Safety (OCC) and Environmental Affairs (ENV) divisions have imlemented rograms that require eriodic insections of each district/maintenance section. The objective of both rograms is to note hazards within the worklace that may contribute to emloyee accidents and/or violate state and federal regulations (including water quality). The resonses by the Districts have shown that the OCC and ENV survey teams are serving as educators as well as reorters. These rograms have resulted in imroved oerations associated with the storage, handling, labeling and ersonal rotection requirements involved with such items as solvents, wet batteries, aint/oil/grease barrels, etc. 8) Stockiled Materials Stockile Management rocedures and ractices are designed to reduce or eliminate air and stormwater ollution from stockiles of soil, aving materials such as ortland cement concrete rubble, reclaimed ashalt avement (RAP), hot mixed-cold laid bituminous mixes, limestone rock ashalt, re-coated aggregates, various atching mixes, and road deicing salt and sand. TxDOT imlements best management ractices at all facilities that stockile soil and other materials. Protection of stockiles is a year-round requirement. To roerly manage stockiles TxDOT: Locates stockiles away from concentrated flows of stormwater, drainage courses, and inlets; Protects all stockiles from stormwater run-on using temorary erimeter sediment barriers, such as berms, dikes, fiber rolls, silt fences, sandbag, gravel bags, or straw bale barriers where available and aroriate; Places bagged materials on allets and under cover where available and aroriate; Will insect stockiled materials once every 18 months to verify continued BMP imlementation; and, Reair and/or relace erimeter controls and covers as needed to kee them functioning roerly. TxDOT will reort the number of miles mowed, the linear feet of storm sewer system and drainage ditches cleaned, and the number of insections erformed at material storage and stockile areas in the annual reort. 74

84 5.3.7 Structural Control Maintenance BMPs associated with this section are erformed and reorted in Sections and above. These activities include: TxDOT ersonnel or TxDOT aroved consultants will insect and maintain ermanent structural control measures and ensure adequate long-term oeration of BMPs. Maintenance of ermanent structural controls includes reair of erosion features, removal of sediment and debris, etc. TxDOT currently has design standards that ensure comliance for structural and non-structural runoff controls. TxDOT will udate its inventory and assess the status of the structural controls as determined by TxDOT. TxDOT includes the number of insections comleted, and the volume of trash and debris removed, if available, from ermanent structural controls during the ermit year in Section TxDOT ENV will ma/locate ermanent structural controls, such as detention/irrigation onds, hazardous waste tras, sand filter tras, infiltration onds, or catch basins. TxDOT will erform the maing of 5 districts er year or will erform the maing of the entire MS4 within the 5-year ermit term. A ma will be included in the annual reorts in Section TxDOT s rocedure for disosal of dredged soil and accumulated sediment from structural controls is to disose of sediment into either uland locations or landfills. This rocedure will not result in re-deosition of sediment into the system, and assures roer disosal of sediments in accordance with 30 TAC Chater 330 or 335 rules. Floatables that are collected will be disosed of in a municial landfill. TxDOT reorts the volume of soil, sediment and trash removed in the annual reort in Section Mowing and vegetation management. TxDOT reorts the number of miles mowed during the ermit year and include in the annual reort in Section Storm sewer system and drainage ditch cleaning. TxDOT reorts the number of miles of ditches cleaned during the ermit year and include in the annual reort in Section

85 5.3.8 Additional Requirements for Previous Phase I Permitted Areas In addition to all the requirements described above, TxDOT meets the following requirements in areas that were reviously ermitted under a Phase I ermit. Pesticide, Herbicide, and Fertilizer Alication and Management 1) Landscae maintenance Mowing and vegetation management are an integral art of TxDOT's highway maintenance rogram. The wildflower rogram is art of a comrehensive vegetation management rogram. It encourages the growth of native secies that require less mowing and care. The native grasses and wildflowers hel to conserve water, control erosion and rovide a habitat for wildlife. The deartment normally lants wildflowers annually and has a multimillion dollar annual landscaing budget. The amounts vary each year deending on its need. Mowing is delayed until wildflowers have roduced mature seeds to assure the reservation and roagation of wildflower secies. Detailed information on the wildflower rogram, as well as tyes of mowing, secial situations mowing and litter icku, and non-mow areas, are located in the Roadside Vegetation Management Manual, (htt://onlinemanuals.txdot.gov/txdotmanuals/veg/index.htm). TxDOT reorts the number of miles mowed during the ermit year in Section ) TxDOT imlements the following ractices to minimize landscaing-related ollutant generation with regard to ublic saces it owns and oerates: a) Emloyees alying herbicides are licensed by the state and furthermore, TxDOT arranges annual training workshos for TxDOT maintenance ersonnel, subcontractors, and contractors. Emloyees receiving training are reorted in Section b) TxDOT imlements controls to reduce the discharge of ollutants related to the storage and alication of esticides, herbicides, and fertilizers, alied by TxDOT s emloyees or contractors, to ublic ROW, or other TxDOT roerty. This includes schedules develoed for alication to minimize runoff as described in Section The controls are secified and reorted in Section TxDOT ensures the roer collection and disosal of unused esticides, herbicides, and fertilizers as secified in Section TxDOT reorts these activities in Section

86 5.4 BMP Imlementation Schedule Activity, and Measurable Goals Permit Year/Month Table 5.1 POLLUTION PREVENTION AND GOOD HOUSEKEEPING FOR TRANSPORTATION OPERATIONS BMP Activity Measurable Goals Resonsible Staff Annually/Aug Program Develoment Fully imlement all alicable new elements and all alicable elements in newly regulated Phase II MS4 areas by the end of the current ermit term. All new elements and elements in newly regulated Phase II areas comleted will be included in the Annual reort. ENV District Comlete the Facility Environmental Comliance Survey at each facility within or immediately adjacent to the regulated area at least once during the ermit term. Log the number of insections comleted during the ermit year in the annual reort. District ENV Annually/Aug TxDOT- Owned Facilities and Control Inventory Insect and maintain ermanent structural control measures and ensure adequate long-term oeration of BMPs. Ma/locate ermanent structural controls. Perform maing of 5 districts er year. Include the number of insections comleted during the ermit year in the annual reort. Include udated ma in the annual reort. District ENV ENV District Imlement rocedures for disosal of dredged soil and accumulated sediment from structural controls and disose of sediment into either uland locations or landfills. Reort the number of structural controls maintained in the annual reort. ENV District Annually/Aug Training and Education Require TxDOT staff to attend training classes listed in Attachment B as alicable. Record the number of articiants for each training class. Records will be maintained at each District and ENV for TCEQ review. District ENV Annually/Aug Disosal of Waste Material Manages the removal of waste roducts threatening water quality on the ROW. Reort the cost and volumes from Comass Data; Function Codes: 511 (ROW Mowing), 513 (Sot Mowing), 830 (Hazard Material Clean-u, Sills or Leaking Storage Tanks), 831 (Hazard Material Clean-u, Abandoned Materials) District ENV 77

87 Permit Year/Month POLLUTION PREVENTION AND GOOD HOUSEKEEPING FOR TRANSPORTATION OPERATIONS BMP Activity Measurable Goals Resonsible Staff Annually/Aug Contractor Requirements and Oversight Assure that olicies governing the design, location, and methods of installation are set out and followed by contractors. Reort the number of utility ermit requests received from contractors during the ermit year in the annual reort. Any issues relayed to contractor oerations will also be included, as necessary, in the annual reort. District ENV Mowing and vegetation management for street, road, or highway maintenance. Reort the number of miles mowed and chemical controls used during the ermit year and include in the annual reort. Comass Function Codes 511, 513, 541 and 545 District Annually/Aug Roadway Oeration and Maintenance Activities Storm sewer system and drainage ditch cleaning. Seeding and vegetation control. Reort the number of miles of ditches cleaned during the ermit year and include in the annual reort. Comass Function Codes 561 Reort the esticide herbicide cost from Comass Function Codes 548 and 540 and include in the annual reort. ENV District ENV Material storage at maintenance facilities. Performed and reorted in above. ENV Stockiled materials. Performed and reorted in above. ENV Annually/Aug Structural Control Maintenance Insect and maintain ermanent structural control measures and ensure adequate long-term oeration of BMPs. Ma/locate ermanent structural controls, such as detention/irrigation onds, hazardous waste tras, sand filter tras, infiltration onds, or catch basins. The number of insections comleted, and the volume of trash and debris removed, if available, from ermanent structural controls during the ermit year is reorted in Section The ma will be included in the annual reorts in Section District ENV District ENV Disosal of dredged soil and accumulated sediment from structural controls. The volume of soil, sediment and trash removed is reorted in Section District ENV 78

88 Permit Year/Month POLLUTION PREVENTION AND GOOD HOUSEKEEPING FOR TRANSPORTATION OPERATIONS BMP Activity Measurable Goals Resonsible Staff Mowing and vegetation management. Storm sewer system and drainage ditch cleaning. The number of miles mowed during the ermit year are reorted in Section The miles of ditches cleaned during the ermit year are reorted in Section District ENV District ENV POLLUTION PREVENTION AND GOOD HOUSEKEEPING FOR TRANSPORTATION OPERATIONS Permit Year/Month BMP Activity Measurable Goals Resonsible Staff ADDITIONAL REQUIREMENTS FOR PREVIOUS PHASE I PERMITTED AREAS Landscae maintenance. TxDOT reorts the number of miles mowed during the ermit year in Section ENV Annually/Aug Pesticide, Herbicide, and Fertilizer Alication and Management Emloyees alying herbicides are licensed by the state and furthermore, TxDOT arranges annual training workshos for TxDOT maintenance ersonnel, subcontractors, and contractors. Imlement controls to reduce the discharge of ollutants related to the storage and alication of esticides, herbicides, and fertilizers. Emloyees receiving training are reorted in Section The controls are secified and reorted in Section ENV District Ensure roer collection and disosal of unused esticides, herbicides, and fertilizers. TxDOT reorts these activities in Section District 79

89 6.0 MONITORING AND EVALUATION 6.1 Permit Requirements The ermittee shall, in areas reviously ermitted under a Phase I ermit, develo and imlement an Alternate Stormwater Assessment Program (See Part III.B.2(i)(5)) and continue imlementing a floatables monitoring and reduction rogram. The rogram must include: 1. Dry weather screening The ermittee shall continue to screen and detect the resence of illicit discharges to its MS4 (See Part III.B.2(i)(5)). 2. Evaluation of water quality The ermittee shall continue to evaluate the watershed using existing stormwater characterization data. This evaluation must be conducted in the existing Phase I areas where the ermittee was reviously resonsible for outfall or watershed monitoring under the Wet Weather Characterization rogram and must include available data for the ollutants reviously monitored by the ermittee under its Phase I ermits, as listed in Attachment 3. The results of the evaluation must be submitted with the year 4 annual reort. Phase I areas under this requirement include: TxDOT Beaumont (WQ ), City of San Antonio (WQ ), TxDOT Austin (WQ ), City of Houston (WQ ), TxDOT Houston District (Pasadena) (WQ ), City of Fort Worth (WQ ), City of Arlington (WQ ), and City of Dallas (WQ ). (See Part III.B.2(i)(5)). 3. Floatables monitoring - The ermittee shall continue to imlement a rogram to reduce the discharge of floatables (e.g. litter and other human generated solid refuse) into the MS4, which must include source controls and, where necessary, structural controls and other aroriate controls. The amount of material collected shall be estimated by weight, volume, or by other ractical means. Results shall be included in the statewide annual reort. 6.2 Program Overview TxDOT will, in areas reviously ermitted under a Phase I ermit, continue dry weather screening, erform an evaluation of water quality through the develoment and imlementation of an Alternate Stormwater Assessment Program (See Part III.B.2(i)(5) of Permit No. WQ ), and continue imlementing a floatables monitoring and reduction rogram. 6.3 Best Management Practices and Measurable Goals Dry weather screening TxDOT will continue to screen and detect the resence of illicit discharges to its MS4 as defined in Section of this SWMP. This evaluation will be conducted in the existing Phase I areas. This ermit requirement is erformed and reorted in Section above. 80

90 6.3.2 Evaluation of water quality TxDOT will continue to evaluate the watershed using existing stormwater characterization data. This evaluation will be conducted in the existing Phase I areas where the ermittee was reviously resonsible for outfall or watershed monitoring under the Wet Weather Characterization rogram and will include available data for the ollutants reviously monitored by the ermittee under its Phase I ermits, as listed in Attachment 3 of Permit No. WQ The results of the evaluation will be submitted with the year 4 annual reort. Phase I areas under this requirement include: TxDOT Beaumont (WQ ), City of San Antonio (WQ ), TxDOT Austin (WQ ), City of Houston (WQ ), TxDOT Houston District (Pasadena) (WQ ), City of Fort Worth (WQ ), City of Arlington (WQ ), and City of Dallas (WQ ). (See Part III.B.2(i)(5)) as defined in Section of this SWMP. This ermit requirement is erformed and reorted in Section above Floatables Monitoring TxDOT s reviously issued Phase I ermits required the imlementation of a rogram to reduce the discharge of floatables (for examle, litter and other human generated solid refuse) into the TxDOT MS4. To assure comliance with TxDOT TPDES ermit requirements, TxDOT has and will continue to imlement a rogram to reduce the discharge of floatables (for examle, litter and other human generated solid refuse) into the TxDOT MS4, which will include source controls and, where necessary, structural controls and other aroriate controls. TxDOT imlements a statewide rogram including the Don t Mess with Texas camaign, the Adot-a-Highway rogram, and street sweeing to reduce the discharge of floatables into its statewide MS4. The rogram rimarily uses litter icku, monitoring, and source control to reduce floatables. TxDOT hires rivate contractors to erform street sweeing on TxDOT roadways throughout the ermitted areas. Most of the street sweeing is vacuum-assisted which rovides the greatest level of articulate recovery. In addition, TxDOT comiles data (i.e., litter weight) from the Adot-a-Highway Program and reorts the quantity to TCEQ in annual reorts. TxDOT also tracks annual exenditures for the DMWT rogram which will be included in the annual reorts. This ermit requirement is erformed and reorted in Section 1.3.1, 1.3.2, 1.3.3, 5.3.4, 5.3.6, and above. 81

91 6.4 Monitoring and Evaluation Imlementation Schedule Activity, and Measurable Goals Table 6.1 MONITORING AND EVALUATION Permit Year/Month BMP Activity Measurable Goals Resonsible Staff THE FOLLOWING BMPs WILL BE PERFORMED ONLY IN PREVIOUSLY PERMITTED PHASE I AREAS Annually/Aug Dry Weather Screening Screen 20 ercent of the reviously ermitted Phase I areas and detect the resence of illicit connections and imroer discharges from adjacent MS4s and illegal third arties discharges to the MS4. Requirement is erformed and reorted in Section ENV District Annually/Aug Evaluation of Water Quality Evaluate the listed watersheds using existing stormwater characterization data collected by reliable sources such as TCEQ, local river authorities, artnershis, and/or other local efforts as aroriate. Requirement is erformed and reorted in Section District ENV Annual exenditures for the "DMWT" rogram are reorted in Section ENV Annually/Aug Floatables Imlement statewide rograms including the Don t Mess with Texas camaign, the Adot-a- Highway rogram, and street sweeing to reduce the discharge of floatables into the statewide MS4. "Adot-a-Highway rogram data is reorted in Section and Trash and debris disosed of as floatable removal is reorted in Section 5.3.4, 5.3.6, and ENV District 82

92 7.0 IMPAIRED WATER BODIES AND TOTAL MAXIMUM DAILY LOAD (TMDL) REQUIREMENTS 7.1 Permit Requirement Discharges of the ollutant(s) of concern (POC(s)) to imaired water bodies for which there is a TCEQ and EPA aroved total maximum daily load (TMDL) are not eligible for this ermit unless they are consistent with the aroved TMDL. A water body is imaired for uroses of the ermit if it has been identified, ursuant to the latest TCEQ and EPA aroved CWA 303(d) list or identified in the Index of Water Quality Imairments in the Integrated Reort of Surface Water Quality for Clean Water Act Sections 305(b) and 303(d), as not meeting Texas Surface Water Quality Standards. The ermittee shall control the discharges of POC(s) to imaired waters and waters with aroved TMDLs as rovided in sections (a) and (b) below, and shall assess the rogress in controlling those ollutants. (a) Discharges to Water Quality Imaired Water Bodies with an Aroved TMDL For any ortion of the MS4 that discharges to a ortion of a watershed with an aroved TMDL, where stormwater has the otential to cause or contribute to the imairment, the ermittee shall include in the SWMP controls targeting the POC(s) along with any additional or modified controls required in the TMDL and this section. The SWMP and required annual reorts must include information on imlementing any targeted controls required to reduce the POC(s) as described below: (1) Targeted Controls The SWMP must include a detailed descrition of all targeted controls to be imlemented, such as identifying areas of focused effort or imlementing additional Best Management Practices (BMPs) to reduce the POC(s) in the imaired waters. (2) Measurable Goals For each targeted control, the SWMP must include a measurable goal and an imlementation schedule describing BMPs to be imlemented during each year of the ermit term. (3) Identification of Benchmarks The SWMP must identify a benchmark for the POC(s). Benchmarks are designed to assist in determining if the BMPs established are effective in addressing the POC(s) in stormwater discharge(s) from the MS4 to the maximum extent racticable (MEP). The BMPs addressing the POC(s) must be re-evaluated on an annual basis for rogress towards the benchmarks and modified as necessary within an adative management framework. These benchmarks are not numeric effluent limitations or ermit conditions but intended to be guidelines for evaluating rogress towards reducing ollutant discharges consistent with the benchmarks. The exceedance of a 83

93 benchmark is not a ermit violation and does not in itself indicate a violation of instream water quality standards. The benchmark must be determined based on one of the following otions: a. If the MS4, or a ortion there of, is subject to a TMDL that identifies a Waste Load Allocation(s) (WLA) for ermitted MS4 stormwater sources, then the SWMP may identify it as the benchmark. Where an aggregate allocation is used as a benchmark, all affected MS4 oerators are jointly resonsible for rogress in meeting the benchmark and shall (jointly or individually) develo a monitoring/assessment lan as required in Part II.D.3(a)(6). b. Alternatively, if multile MS4s are discharging into the same imaired watershed with an aroved TMDL, with an aggregate WLA for all ermitted stormwater MS4s, then the MS4s may combine or share efforts to determine an alternative sub-benchmark for the POC (e.g., bacteria) for their resective MS4. The SWMP must clearly define this alternative aroach and must describe how the sub-benchmark would cumulatively suort the aggregate WLA. Where an aggregate benchmark has been broken into sub-benchmarks for individual MS4s, each ermittee is only resonsible for rogress in meeting its sub-benchmark. (4) Statewide Annual Reort The annual reort must include an analysis of how the selected BMPs will be effective in contributing to achieving the benchmark. (5) Imairment for Bacteria If the POC is bacteria, the ermittee shall include focused BMPs addressing the below areas, as alicable, in the SWMP and imlement as aroriate. If a TMDL Imlementation Plan (I-Plan) is available, the ermittee may refer to the I-Plan for aroriate BMPs. The SWMP and annual reort must include the selected BMPs. The ermittee may not exclude BMPs associated with the minimum control measures required under 40 CFR from its list of roosed BMPs. Proosed BMPs will be reviewed by the executive director during the SWMP review and aroval rocess. The BMPs shall, as aroriate, address the following: a. Sanitary Sewer Systems; b. On-site Sewage Facilities; c. Illicit Discharges and Duming from setic systems, grease tras, grit tras, or other sources; and d. Animal Sources such as et waste from rest areas. (6) Monitoring or Assessment of Progress The ermittee shall monitor or assess rogress in achieving benchmarks and determine the effectiveness of BMPs, and shall include documentation of this 84

94 monitoring or assessment in the SWMP and annual reorts. In addition, the SWMP must include methods to be used. a. The ermittee may use either of the following methods to evaluate rogress towards the benchmark and imrovements in water quality: (i) Evaluating Program Imlementation Measures The ermittee may evaluate and reort rogress towards the benchmark by describing the activities and BMPs imlemented, by identifying the aroriateness of the identified BMPs, and by evaluating the success of imlementing the measurable goals. The ermittee may assess rogress by using rogram imlementation indicators, such as: (1) number of sources identified or eliminated; (2) decrease in number of illegal duming; (3) increase in illegal duming reorting; (4) success associated with the Don t Mess With Texas rogram camaign and how many times the ublic accessed the website; or, (5) increase in illegal discharge detection through dry screening, etc.; or (ii) Assessing Imrovements in Water Quality The ermittee may assess imrovements in water quality by using available data for segment and assessment units of water bodies from other reliable sources such as the wet weather watershed rogram or other sources, or by roosing and justifying a different aroach such as collecting additional instream or outfall monitoring data, etc. Data may be acquired from TCEQ, local river authorities, artnershis (such as regional watershed monitoring efforts), and/or other local efforts as aroriate. b. Progress towards achieving the benchmark shall be reorted in the annual reort. Annual reorts shall reort the benchmark and the year(s) during the ermit term that the MS4 conducted additional samling or other assessment activities. (7) Observing no Progress Towards the Benchmark If, by the end of the third year from the effective date of the ermit, the ermittee observes no rogress toward the benchmark either from rogram imlementation or water quality assessments as described in Part II.D.3(a)(6), the ermittee shall identify alternative focused BMPs that address new or increased efforts towards the benchmark or, as aroriate, shall develo a new aroach to identify the most significant sources of the POC(s) and shall develo alternative focused BMPs for those (this may also include information that identifies issues beyond the MS4 s control). These revised BMPs must be included in the SWMP and subsequent annual reorts. Where the ermittee originally used a benchmark based on an aggregated WLA, the ermittee may combine or share efforts with other MS4s discharging to the same watershed to determine an alternative sub-benchmark for the POC(s) for their 85

95 resective MS4s, as described in Part II.D3(a)(3)b. above. Permittees must document, in their SWMP for the next ermit term, the roosed schedule for the develoment and subsequent adotion of alternative sub benchmark for the POC(s) for their resective MS4s and associated assessment of rogress in meeting those individual benchmarks. (b) Discharges Directly to Water Quality Imaired Water Bodies without an Aroved TMDL The ermittee shall also determine whether any ortion of the MS4 discharges directly to one or more water quality imaired water bodies where a TMDL has not yet been aroved by TCEQ and EPA. If the ermittee discharges directly into an imaired water body without an aroved TMDL, the ermittee shall erform the following activities for the areas of the MS4 subject to these requirements: (1) Discharging a Pollutant of Concern a. Within the first year following the ermit effective date, the ermittee shall determine whether the MS4 may be a source of the POC(s) by referring to the CWA 303(d) list and then determining if discharges from the MS4 would be likely to contain the POC(s) at levels of concern. b. If the ermittee determines that the MS4 may discharge the POC(s) to an imaired water body without an aroved TMDL, the ermittee shall, no later than two years following the ermit effective date, ensure that the SWMP includes focused BMPs, along with corresonding measurable goals, that the ermittee will imlement, to reduce, the discharge of POC(s) that contribute to the imairment of the water body. c. In addition, no later than three years following the ermit effective date, the ermittee shall submit written notification to TCEQ to amend the SWMP to include any additional BMPs to address the POC(s). (2) Imairment of Bacteria Where the imairment is for bacteria, the ermittee shall identify otential significant sources and develo and imlement focused BMPs for those sources. The ermittee may at the very least address the sources listed in Part II.D.3(a)(5). (3) The annual reort must include information on comliance with this section, including results of any samling conducted by the ermittee. 86

96 7.2 Program Overview TxDOT will identify outfalls within its regulated MS4 areas that will discharge directly into imaired water bodies using the latest TCEQ and EPA aroved CWA 303(d) list within the first ermit year. TxDOT will also identify the associated POCs within these segments during the first ermit year. If additional BMPs are needed, TxDOT will revise the SWMP within the second ermit year. TxDOT will erform the rocedures described in the following Water Quality Imaired Water Bodies (WQIWB) and Total Maximum Daily Load (TMDL) Best Management Practices (BMPs) Flow Chart in Attachment K. 7.3 Best Management Practices and Measurable Goals Discharges to Water Quality Imaired Water Bodies with an Aroved TMDL TxDOT will assess if its MS4 area draining to an imaired water body has the otential to cause or contribute to the imairment within the first ermit year from the effective date of the ermit and reort its findings in the second year annual reort. TxDOT will utilize the most recent list of imaired water bodies and EPA aroved TMDL as well as current ending TMDLs and aroved or ending Imlementation Plans (I-Plans) made available by TCEQ. Tables 7.2 and 7.3 list the EPA aroved TMDLs and aroved or ending Imlementation Plans (I-Plans), and imaired water bodies as defined by the TCEQ in the 2014 Texas Integrated Reort - Texas 303(d) List (Category 5). If the assessment indicates that TxDOT s oerations may otentially contribute as a source of an adoted TMDL POC, TxDOT will revise Table 7.2 and Table 7.3 with aroriate TxDOT BMPs and reort them in the annual reort. For any ortion of the TxDOT MS4 that discharges to a ortion of a watershed with an aroved TMDL, where stormwater has the otential to cause or contribute to the imairment, TxDOT will include in the SWMP, controls targeting the POCs, along with any additional or modified controls required in the TMDL and this section. The SWMP and required annual reorts will include information on imlementing any targeted controls required to reduce the POCs as described below: 1) Targeted Controls Targeted Controls are listed in Table 7.4 and include Focused Effort/Additional BMPs, POCs, Benchmark Goals/Measurable Goals, and Imlementation Schedules). TxDOT will identify areas of focused effort or identify additional BMPs that will be imlemented to reduce the POCs in the imaired waters. 2) Measurable Goals For each targeted control (See Table 7.4), TxDOT will include a measurable goal and an imlementation schedule describing BMPs to be imlemented during each year of the ermit term. 87

97 3) Identification of Benchmarks Because TxDOT s regulated area may be located within several watersheds, TxDOT will identify a benchmark goal (see Table 7.4) for the identified POC based on the watershed and TxDOT s district locations with one of the following otions: a) If the TxDOT regulated area is subject to a TMDL that identifies an aggregate WLA for all ermitted MS4 stormwater sources, then TxDOT will identify such aggregate WLA as the benchmark. TxDOT will coordinate with other affected MS4 oerators and will be jointly resonsible for rogress in meeting the benchmark goal and/or will jointly develo a monitoring/assessment lan according to the aroved I-Plan; or, b) Alternatively, if multile MS4s are discharging into the same imaired water body with an aroved TMDL, with an aggregate WLA for all ermitted stormwater MS4s, then TxDOT may combine or share efforts to determine an alternative subbenchmark goal for the ollutant(s) of concern for the TxDOT MS4. TxDOT will clearly define this alternative aroach and will describe how the sub-benchmark goals would cumulatively suort the aggregate WLA as defined in the aroved I-Plan. TxDOT will be resonsible for rogress in meeting its WLA subbenchmark goal; or, c) Alternatively, if multile MS4s are discharging into the same imaired water body with an aroved TMDL, with an aggregate WLA for all ermitted stormwater MS4s, then TxDOT may combine or share efforts to determine an alternative subbenchmark goal for the ollutant(s) of concern for the TxDOT MS4. TxDOT will clearly define this alternative aroach and will describe how the sub-benchmark goals would cumulatively suort the aggregate WLA as defined in the aroved I-Plan. TxDOT will be resonsible for rogress in meeting its WLA subbenchmark goal; or, d) If the TxDOT regulated area is subject to an individual WLA secifically assigned to TxDOT, this individual WLA will be the benchmark goal. TxDOT will be resonsible for rogress in meeting its WLA benchmark goal as defined in the aroved I-Plan. 4) Statewide Annual Reort The annual reort will include an analysis of how the selected BMPs will be effective in contributing to achieving the benchmark goal. 5) Imairment for Bacteria If the POC is bacteria, TxDOT will evaluate the following otential sources, as listed in the Permit No. WQ , if located within TxDOT s Regulated area: a) Sanitary Sewer Systems; b) On-site Sewage Facilities; 88

98 c) Illicit Discharges and Duming from setic systems, grease tras, grit tras; and, d) Animal Sources such as et waste from rest areas. TxDOT does not own or oerate sanitary sewer systems or on-site sewage facilities within its regulated area. Illicit Discharges from setic systems, grease tras, and grit tras do not originate from the TxDOT MS4; rather, the illicit discharges originate from adjacent MS4s and third-arty discharges into the TxDOT MS4. In addition, there are no rest areas constructed within TxDOT s MS4 regulated area; therefore et wastes are not a otential source of bacteria to the TxDOT MS4. To further identify otential animal sources for bacteria on TxDOT s regulated area, TxDOT utilizes current research studies erformed by the Bacteria Sources Tracking (BST) grou of the Texas Water Resources Institute (TWRI), and TxDOT s own research rograms. Bacteria Sources Tracking (BST) is a new methodology that is currently being used to determine the sources of fecal bacteria in environmental samles (e.g., from human, livestock or wildlife origins, and faulty on-site waste disosal systems). The BST grou 1 has comiled a bacteria DNA library that includes bacteria ollution indicators and fecal bacteria source indicators to quantify ossible imacts to water from animal and sewage wastes. The BST s research indicates that Escherichia coli (E. Coli), Total Coliform (TC), and Fecal Coliform (FC) sources are associated with the gastrointestinal tracts of humans and warmblooded animals while Fecal Stretococci (FS) and Enterococci Grous sources of bacteria are in animal feces. Recently aroved I-Plans have indicated that birds nesting under and near bridges do not contribute to elevated levels of bacteria, and that their contribution to stream segments would be considered background concentrations. The background concentration level contributed by birds roosting under bridges has been shown to be insignificant when comared to the major sources listed in the BST studies. Deterring the building of nests under bridges and box culverts is not considered a ermanent mitigation of the otential bacteria source since birds can also build nests in the trees next to TxDOT bridges. As shown above, TxDOT s regulated area is not a major source of bacteria. TxDOT will imlement necessary BMPs, as identified in the aroved Imlementation Plan (I-Plan) that is assigned to TxDOT, to reduce bacteria to the maximum extent racticable (MEP), in those stream segments with aroved TMDLs. 6) Monitoring or Assessment of Progress 1 Texas Water Resources Institute at Texas A&M University. 89

99 TxDOT will monitor or assess rogress in achieving benchmark goals and determining the effectiveness of BMPs, and will include documentation of this monitoring or assessment in the annual reorts. TxDOT may utilize the following methods to accomlish the assessment: a) TxDOT may assess rogress by using rogram imlementation indicators such as: Number of sources identified or eliminated; Decrease in amount of illegal duming; Increase in illegal duming reorting; Don t Mess With Texas" camaign and web accessed; Adot-a-Highway rogram; or, Increase in illegal discharge detection through dry screening, etc. b) Assessing Imrovements in Water Quality TxDOT will assess imrovements in water quality by using available data for the segment and assessment units of water bodies from other reliable sources, or by roosing and justifying a different aroach such as collecting additional instream or outfall monitoring data, etc. Data may be acquired from TCEQ, local river authorities, artnershis, and/or other local efforts as aroriate. Progress toward achieving the benchmark goal will be reorted in the annual reort. Annual reorts will include the benchmark goal and the year(s) during the ermit term if TxDOT conducted additional samling or other assessment activities. 7) Observing no Progress Toward the Benchmark Goal If, by the end of the I-Plan imlementation goals eriod, TxDOT observes no rogress toward the benchmark goal either from rogram imlementation or water quality assessments as described above, TxDOT will identify alternative focused BMPs that address new or increased efforts towards the benchmark goal or, as aroriate, will develo a new aroach to identify the most significant sources of POCs and will develo alternative focused BMPs for those (this may also include information that identifies issues beyond the MS4 s control). These revised BMPs will be included in the SWMP and subsequent annual reorts. 90

100 7.3.2 Discharges Directly to Water Quality Imaired Water Bodies Without an Aroved TMDL TxDOT will determine whether any ortion of the MS4 discharges directly to one or more water quality imaired water bodies where a TMDL has not yet been aroved by TCEQ and EPA. If TxDOT discharges directly into an imaired water body without an aroved TMDL, TxDOT will erform the following activities for the areas of the MS4 subject to these requirements: 1) Discharging a Pollutant of Concern a) Within the first year following the ermit effective date (November 30, 2017), TxDOT will determine whether the MS4 may be a source of the POCs by referring to the CWA 303(d) list and then determining if discharges from the MS4 would be likely to contain the POCs at levels of concern. This activity will be erformed in the first ermit year and will be reorted in the second year annual reort. b) If TxDOT determines that the MS4 may discharge the POCs to an imaired water body without an aroved TMDL, TxDOT will, no later than two years following the ermit effective date, ensure that the SWMP includes focused BMPs, along with corresonding measurable goals, that TxDOT will imlement, to reduce, the discharge of POCs that contribute to the imairment of the water body. This activity will be reorted in the third year annual reort. c) In addition, no later than three years following the ermit effective date, TxDOT will submit written notification to TCEQ to amend the SWMP to include any additional BMPs to address the POCs. This activity will be reorted in the fourth year annual reort. Table 7.3 rovides an examle of the analysis. 2) Imairment of Bacteria Where the imairment is for bacteria, TxDOT will identify otential significant sources and develo and imlement targeted BMPs for those sources. TxDOT will imlement the focused BMPs listed above. 3) Annual Reort The annual reort will include an analysis of how the selected BMPs will be effective in contributing to achieving the benchmark goal. 91

101 7.4 Imaired Water Bodies and Total Maximum Daily Load (TMDL) Requirements Imlementation Schedule Activity, and Measurable Goals Table 7.1 IMPAIRED WATER BODIES AND TOTAL MAXIMUM DAILY LOAD (TMDL) REQUIREMENTS Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Discharges to Water Quality Imaired Water Bodies with an Aroved TMDL Annualy/Aug Discharges to Water Quality Imaired Water Bodies with an Aroved TMDL Assess if the MS4 area draining to an imaired water body has the otential to cause or contribute to the imairment. If the assessment indicates that TxDOT s oerations may otentially contribute as a source of an adoted TMDL POC, TxDOT will imlement aroriate BMPs and include in the annual reort those imaired water bodies and POCs identified. ENV Annualy/Aug Targeted Controls TxDOT will identify areas of focused effort or identify additional BMPs that will be imlemented to reduce the POCs in the imaired waters. 1) Include BMPs in SWMP. 2) Reort BMPs to TCEQ in annual reort. ENV Annualy/Aug Measurable Goals For each targeted control, TxDOT will include a measurable goal and an imlementation schedule describing BMPs to be imlemented during each year of the ermit term. 1) Include measurable goals in SWMP. 2) Reort measurable goals to TCEQ in annual reort. ENV Annualy/Aug Identification of Benchmarks TxDOT will identify a benchmark goal (see Table 7.2) for the identified POC based on the watershed and TxDOT s district locations with one of the otions rovided in Section )a), b), c), or d) otions. 1) Select and imlement the aroriate otion. 2) Reort the otion selected in the annual reort.. ENV Annualy/Aug Statewide Annual Reort Conduct an analysis of how the selected BMPs will be effective in contributing to achieving the benchmark goal. Include analysis in annual reort. ENV 92

102 IMPAIRED WATER BODIES AND TOTAL MAXIMUM DAILY LOAD (TMDL) REQUIREMENTS Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annualy/Aug Imairment for Bacteria If the POC is bacteria, TxDOT will evaluate the following otential sources. TxDOT has addressed the otential sources and will rovide a summary of its findings in the annual reort. ENV Annually/Aug Monitoring or Assessment of Progress Monitor or assess rogress in achieving benchmark goals and determining the effectiveness of BMPs. Include documentation of this monitoring or assessment in the annual reorts. ENV Varies Deending on I-Plan End Date Observing no Progress Toward the Benchmark Goal If TxDOT observes no rogress toward the benchmark goal, TxDOT will identify alternative focused BMPs that address new or increased efforts towards the benchmark goal. These revised BMPs will be included in the SWMP and subsequent annual reorts. ENV Discharges Directly to Water Quality Imaired Water Bodies Without an Aroved TMDL Annually/Aug Discharges Directly to Water Quality Imaired Water Bodies Without an Aroved TMDL TxDOT will determine whether any ortion of the MS4 discharges directly to one or more water quality imaired water bodies where a TMDL has not yet been aroved by TCEQ and EPA. If TxDOT discharges directly into an imaired water body without an aroved TMDL, TxDOT will erform the following activities for the areas of the MS4 subject to these requirements set forth in ,2, and 3 below. ENV Imlement in Year 1/Nov Reort in Year 2/Aug TxDOT will determine whether the MS4 may be a source of the POCs by referring to the CWA 303(d) list. Determining if discharges from the MS4 would be likely to contain the POCs at levels of concern. ENV Imlement in Year 2/Nov Reort in Year 3/Aug Discharging a Pollutant of Concern If TxDOT determines that the MS4 may discharge the POCs to an imaired water body without an aroved TMDL. Ensure that the SWMP includes focused BMPs, along with corresonding measurable goals, that TxDOT will imlement. ENV 93

103 IMPAIRED WATER BODIES AND TOTAL MAXIMUM DAILY LOAD (TMDL) REQUIREMENTS Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Imlement in Year 3/Nov Reort in Year 4/Aug Discharging a Pollutant of Concern TxDOT will submit written notification to TCEQ to amend the SWMP to include any additional BMPs to address the POCs Submit notification to TCEQ. ENV Year 4/Aug Imairment of Bacteria TxDOT will identify otential significant sources and develo and imlement targeted BMPs for those sources. TxDOT has addressed the otential sources and will rovide a summary of its findings in the annual reort. ENV Annually/Aug Annual Reort The annual reort will include an analysis of how the selected BMPs will be effective in contributing to achieving the benchmark goal as determinations are made. Submit annual reort to TCEQ. ENV 94

104 Table 7.2 EXISTING APPROVED TMDLS AND IMPLEMENTATION PLANS (I-Plans) WITH TXDOT S BMPS District Name Segment Number Segment Name Pollutant of Concern TMDL Project Name TMDL Adoted IP Aroval Is TxDOT MS4 otential source for imairment? TxDOT BMPs HOU 1254 Aquilla Reservoir Atrazine Original 3/23/01; Revised 6/14/02 1/18/2002 PHA 1113, 1113A, 1113B, 1113C, 1113D, 1113E Armand Bayou in the Houston-Galveston Region Bacteria 8/5/2015 Subsumed in BIG I- Plan aroved 1/30/13 PHA 2202 Arroyo Colorado Legacy Pollutants: DDE, Chlordane, Toxahene 1/17/2001 9/14/2001 AUS 2202 Arroyo Colorado Legacy Pollutants: DDT, DDD, dieldrin, endrin, lindane, hexachlorobenzene, hetachlor, hetachlor eoxide 7/25/2003 Same activities as in I-Plan aroved 9/14/01 Waller Creek, 1429C; Walnut Creek, 1428B; Sicewood Tributary to Shoal Creek, 1403J; and Taylor Slough South, 1403K Austin Area Watersheds Bacteria 1/21/2015 1/21/2015 Walnut Creek, Segments 1428B_01, 1428B_02, 1428B_03, and 1428B_04 Austin Area Watersheds Attachment Bacteria Submitted via WQMP Same activities as in I-Plan aroved 01/21/15 95

105 EXISTING APPROVED TMDLS AND IMPLEMENTATION PLANS (I-Plans) WITH TXDOT S BMPS District Name Segment Number Segment Name Pollutant of Concern TMDL Project Name TMDL Adoted IP Aroval Is TxDOT MS4 otential source for imairment? TxDOT BMPs 1007B, 1007C, 1007E, 1007L Brays Bayou in the Houston- Galveston Region Bacteria 9/15/2010 BIG I-Plan aroved 01/30/ S, 1007T, 1007U Brays Bayou Addendum Houston-Galveston Region Bacteria 4/13/2017 Subsumed in BIG I- Plan aroved 01/30/ , 1013A, 1013C, 1014, 1014A, 1014B, 1014E, 1014H, 1014K, 1014L, 1014M, 1014N, 1014O, 1017, 1017A, 1017B, 1017D, 1017E Buffalo and Whiteoak Bayous in the Houston- Galveston Region Bacteria 4/8/2009 BIG I-Plan aroved 01/30/ C Houston-Galveston Region Bacteria 4/13/2017 NA 1017F Houston-Galveston Region Bacteria 15-Ar NA 1209C, 1209D, 1209L 1101, 1102 Carters Creek Watershed Bacteria 8/22/2012 8/22/2012 Clear Creek Above and Below Tidal Chlordane 1/17/2001 9/14/ , 1102 Clear Creek Above and Below Tidal Trichloroethane, Dichloroethane Original 02/9/01; Revised 06/14/02 10/12/ , 1101B, 1101D, 1102, 1102A, 1102B, 1102C, 1102D, 1102E Clear Creek and Tributaries in the Houston-Galveston Region Bacteria 9/10/2008 BIG I-Plan aroved 01/30/13 96

106 EXISTING APPROVED TMDLS AND IMPLEMENTATION PLANS (I-Plans) WITH TXDOT S BMPS District Name Segment Number Segment Name Pollutant of Concern TMDL Project Name TMDL Adoted IP Aroval Is TxDOT MS4 otential source for imairment? TxDOT BMPs 1101A, 1101C, 1101E, and 1102G Houston-Galveston Region Bacteria NA 1426 Colorado River Below E.V. Sence Reservoir Chloride, Total Dissolved Solids 2/7/ /10/ A, 0822B Cottonwood Branch and Graevine Creek in the Greater Trinity Region Bacteria 9/21/2011 Greater Trinity I-Plan aroved 12/15/ , 841 Dallas Legacy Chlordane, DDD, DDE, DDT, PCBs, Chlordane, Dieldrin, Hetachlor eoxide 12/20/2000 8/10/ , 1103A, 1103B, 1103C, 1104 Dickinson Bayou Bacteria 2/8/2012 1/15/ , 1103D, 1103E Dickinson Bayou Addendum Bacteria Submitted via WQMP 07/16 Same activities as in I-Plan aroved 01/15/ F, 1006H, 1007F, 1007G, 1007H, 1007I, 1007K, 1007M, 1007O, 1007R Eastern Houston in the Houston-Galveston Region Bacteria 9/15/2010 BIG I-Plan aroved 01/30/ V Houston-Galveston Region Bacteria- NA 1411 E.V. Sence Sulfate, TDS Original 11/17/00; Revised 06/14/02 8/10/

107 EXISTING APPROVED TMDLS AND IMPLEMENTATION PLANS (I-Plans) WITH TXDOT S BMPS District Name Segment Number Segment Name Pollutant of Concern TMDL Project Name TMDL Adoted IP Aroval Is TxDOT MS4 otential source for imairment? TxDOT BMPs 806, 829 Fort Worth Legacy Chlordane, DDE, PCBs, Chlordane, Dieldrin 11/17/2000 7/13/ C Gilleland Creek Bacteria 8/8/2007 2/9/ , 1016A, 1016B, 1016C, and 1016D Greens Bayou in the Houston- Galveston Region Bacteria 6/2/2010 BIG I-Plan aroved 01/30/ Guadalue River Above Canyon Lake Bacteria 7/25/2007 8/31/ D, 1006I, 1006J Halls Bayou in the Houston- Galveston Region Bacteria 9/15/2010 BIG I-Plan aroved 01/30/ , 1005, 1006, 1007, 1013, 1014, 1016, 1017, 2426, 2427, 2428, 2429, 2430, 2436 Houston Shi Channel Nickel Nickel Original 08/11/00; Revised 06/14/02 7/13/ Lake Austin DO 11/17/2000 7/13/ E, 1008, 1008H, 1009, 1009C, 1009D, 1009E, 1010, and 1011 Lake Houston Ustream Watersheds in the Houston- Galveston Region Bacteria 4/6/2011 BIG I-Plan aroved 01/30/ B, 1008C, 1008E, and 1011 Lake Houston Watersheds: Addendum 1 in the Houston- Galveston Region Bacteria Submitted via WQMP 10/13 Subsumed in BIG I- Plan aroved 1/30/13 98

108 EXISTING APPROVED TMDLS AND IMPLEMENTATION PLANS (I-Plans) WITH TXDOT S BMPS District Name Segment Number Segment Name Pollutant of Concern TMDL Project Name TMDL Adoted IP Aroval Is TxDOT MS4 otential source for imairment? TxDOT BMPs 403 Lake O the Pines DO 4/12/2006 7/9/ Lake Worth Watershed PCBs 8/10/2005 8/23/2006 PCBs Lake Worth Watershed Addendum 808 Submitted via WQMP 07/14 Same activities as in I-Plan aroved 08/23/ Lower Sabinal River nitrate-nitrogen 8/10/2005 8/23/ Lower San Antonio River Bacteria 8/20/2008 NA 0841, 0841B, 0841C, 0841E, 0841G, 0841H, 0841J, 0841L, 0841M, 0841R, 0841T, and 0841U Greater Trinity Region Bacteria I-Plan aroved 12/15/ , 2003 Mission and Aransas Rivers Bacteria 5/25/2016 5/25/ F, 0841K, 0841N, 0841V Mountain Creek Lake Ustream Watersheds in the Greater Trinity Region Bacteria 11/2/2016 Subsumed in Greater Trinity I-Plan aroved 12/15/ , 1255 North Bosque River Phoshorus 2/9/ /13/ Nueces Bay 0508, 0508A, 0508B, 0508C, 0511, 0511A, 0511B, 0511C, and 0511E Orange County Watersheds Zinc in Oyster Tissue Bacteria, Dissolved Oxygen, H 11/1/ /24/2007 6/13/2007 8/5/

109 EXISTING APPROVED TMDLS AND IMPLEMENTATION PLANS (I-Plans) WITH TXDOT S BMPS District Name Segment Number Segment Name Pollutant of Concern TMDL Project Name TMDL Adoted IP Aroval Is TxDOT MS4 otential source for imairment? TxDOT BMPs 2485 Oso Bay Bacteria 8/22/2007 NA 2204 Petronila Creek Above Tidal Chloride, Sulfate, Total Dissolved Solids 1/10/ /10/ , 1003, 1004, 1004D San Jacinto River, East and West Forks; Lake Houston; and Crystal Creek in the Houston-Galveston Region Bacteria 8/24/2016 Subsumed in BIG I- Plan aroved 1/30/ A, 1007D, 1007N Sims Bayou in the Houston- Galveston Region Bacteria 9/15/2010 BIG I-Plan aroved 01/30/ Uer Oyster Creek Bacteria, DO 8/8/2007 1/15/ , 1910A, 1911 Uer San Antonio River Bacteria 7/25/2007 4/6/ D, 1911B, 1911C, 1911D, 1911E Uer San Antonio River, Addendum Bacteria Submitted via WQMP 04/16 Same activities as in I-Plan aroved 04/06/ , 2422, 2423, 2424, 2432, OW Uer Texas Coast Oyster Waters Uer Texas Coast Oyster Waters Addendum II Bacteria 8/20/2008 8/19/2015 Bacteria Submitted via WQMP 01/12 Same activities as in I-Plan aroved 08/19/ OW, 2434OW Uer Texas Coast Oyster Waters Addendum III Bacteria Submitted via WQMP 04/12 Same activities as in I-Plan aroved 8/19/ Uer Trinity River in the Greater Trinity Region Bacteria 5/11/2011 Greater Trinity 100

110 Table 7.3 ANALYSES OF TXDOT MS4 DISCHARGING DIRECTLY INTO IMPAIRED WATER BODIES (IWB) TxDOT District 303(d) Listed Stream Stream Segment Pollutant of Concern Does TxDOT MS4 discharge directly into IWB? River Basin List Comiled From the 2014 Texas Integrated Reort - Texas 303(d) List (Category 5) Amarillo Canadian River Above Lake Meredith 0103 Chloride Canadian Austin Beaumont Somerville Lake 1212 H San Gabriel River 1214 Chloride, Sulfate Brushy Creek 1244 Bacteria San Gabriel/North Fork San Gabriel 1248 TDS, Chloride Lake Austin 1403 Deressed DO Colorado River Below Town Lake 1428 Bacteria Town Lake 1429 Bacteria, imaired macrobenthic community Brazos Colorado Canyon Lake 1805 Mercury in edible tissue Guadalue Neches River Below Lake Palistine 0604 Dioxin and mercury in edible tissue Pine Island Bayou 0607 Bacteria, Deressed DO Village Creek 0608 Mercury in edible tissue Hillebrandt Bayou 0704 Bacteria, Deressed DO Cedar Bayou Tidal 0901 Bacteria, dioxin in edible tissue, PCBs in edible tissue Neches Neches-Trinity Coastal Trinity San Jacinto Coastal Bryan Navasota River Below Lake Limestone 1209 Bacteria Brazos Corus Christi Corus Christi Bay 2481 Bacteria Oso Bay 2485 Bacteria, Deressed DO Laguna Madre 2491 Bacteria, Deressed DO Gulf Waters 2501 Bacteria, mercury in edible tissue Bays and Estuaries 101

111 ANALYSES OF TXDOT MS4 DISCHARGING DIRECTLY INTO IMPAIRED WATER BODIES (IWB) TxDOT District 303(d) Listed Stream Stream Segment Pollutant of Concern Does TxDOT MS4 discharge directly into IWB? River Basin Lake Tawakoni 0507 H Sabine Trinity River above Lake Livingston 0804 Dioxin in edible tissue, PCBs in edible tissue Dallas Uer Trinity River 0805 Dioxin in edible tissue, PCBs in edible tissue East Fork Trinity River 0819 Sulfate, TDS Lavon Lake 0821 Bacteria Trinity Lower West Fork Trinity River 0841 Bacteria, dioxin in edible tissue, PCBs in edible tissue El Paso Rio Grande Below Riverside Diversion Dam 2307 Bacteria, Chloride, TDS Rio Grande Above International Dam 2314 Bacteria Rio Grande Trinity River above Lake Livingston 0804 Uer Trinity River 0805 West Fork Trinity River Below Lake Worth 0806 Dioxin in edible tissue, PCBs in edible tissue Dioxin in edible tissue, PCBs in edible tissue Bacteria, dioxin in edible tissue, PCBs in edible tissue Fort Worth East Fork Trinity River 0819 Sulfate, TDS Lavon Lake 0821 Bacteria Clear Fork Trinity River Below Benbrook Lake 0829 Dioxin in edible tissue, PCBs in edible tissue Joe Pool Lake 0838 Bacteria Trinity Lower West Fork Trinity River 0841 Bacteria, dioxin in edible tissue, PCBs in edible tissue 102

112 ANALYSES OF TXDOT MS4 DISCHARGING DIRECTLY INTO IMPAIRED WATER BODIES (IWB) TxDOT District 303(d) Listed Stream Stream Segment Pollutant of Concern Does TxDOT MS4 discharge directly into IWB? River Basin Cedar Bayou Tidal 0901 Bacteria, dioxin in edible tissue, PCBs in edible tissue Trinity-San Jacinto Coastal San Jacinto River Tidal 1001 Chlordane, dieldrin, dioxin, hetachlor eoxide, and PCBs in edible tissue Lake Houston 1002 Bacteria, mercury in edible tissue East Fork San Jacinto River 1003 Bacteria West Fork San Jacinto River 1004 Bacteria Houston Houston Shi Channel/San Jacinto River Tidal 1005 Chlordane, dieldrin, dioxin, hetachlor eoxide, and PCBs in edible tissue Houston Shi Channel Tidal 1006 Bacteria, Chlordane, dieldrin, dioxin, hetachlor eoxide, and PCBs in edible tissue, toxicity in sediment San Jacinto Houston Shi Channel/Buffalo Bayou Tidal 1007 Bacteria, dioxin in edible tissue, PCBs in edible tissue, toxicity in sediment, Deressed DO Sring Creek 1008 Deressed DO Buffalo Bayou Tidal 1013 Deressed DO Buffalo Bayou Above Tidal 1014 Deressed DO, imaired fish and macrobenthic communities Greens Bayou Above Tidal 1016 Deressed DO 103

113 ANALYSES OF TXDOT MS4 DISCHARGING DIRECTLY INTO IMPAIRED WATER BODIES (IWB) TxDOT District 303(d) Listed Stream Stream Segment Pollutant of Concern Does TxDOT MS4 discharge directly into IWB? River Basin Whiteoak Bayou Above Tidal 1017 Deressed DO Clear Creek Tidal 1101 Dioxin and PCBs in edible tissue, Deressed DO Clear Creek Above Tidal 1102 Bacteria, PCBs in edible tissue Dickinson Bayou Tidal 1103 Bacteria, dioxin in edible tissue, PCBs in edible tissue, Deressed DO San Jacinto-Brazos Coastal Bastro Bayou Tidal 1105 Bacteria, Deressed DO Armand Bayou Tidal 1113 Bacteria, dioxin and PCBs in edible tissue, Deressed DO, imaired fish and macrobenthic communities Uer Oyster Creek 1245 Bacteria Brazos Uer Galveston Bay 2421 Dioxin and PCBs in edible tissue West Bay 2424 Bacteria, Dioxin and PCBs in edible tissue, Deressed DO, Clear Lake 2425 Bacteria, Dioxin and PCBs in edible tissue Bays and Estuaries Tabbs Bay 2426 Dioxin and PCBs in edible tissue San Jacinto Bay 2427 Dioxin and PCBs in edible tissue 104

114 ANALYSES OF TXDOT MS4 DISCHARGING DIRECTLY INTO IMPAIRED WATER BODIES (IWB) TxDOT District 303(d) Listed Stream Stream Segment Pollutant of Concern Does TxDOT MS4 discharge directly into IWB? River Basin Black Duck Bay 2428 Dioxin and PCBs in edible tissue Scott Bay 2429 Dioxin and PCBs in edible tissue Burnett Bay 2430 Dioxin and PCBs in edible tissue Barbours Cut 2436 Dioxin and PCBs in edible tissue Bayort Channel 2438 Dioxin and PCBs in edible tissue Laredo Rio Grande Below Amistad Reservoir 2304 Bacteria Lubbock Double Mountain Fork Brazos River 1241 Bacteria Brazos Odessa Colorado River Below Lake J.B. Thomas 1412 Bacteria Colorado Arroyo Colorado Tidal 2201 Arroyo Colorado Above Tidal 2202 Bacteria, DDE, mercury, and PCBs in edible tissue Deressed DO Bacteria, mercury in edible tissue, PCBs in edible tissue Nueces-Rio Grande Coastal Pharr Rio Grande Below Falcon Reservoir 2302 Bacteria Rio Grande Laguna Madre 2491 Bacteria, Bacteria (oyster waters), Deressed DO Brownsville Shi Channel 2494 Bacteria Bays and Estuaries Gulf Waters 2501 Bacteria, mercury in edible tissue Gulf of Mexico San Angelo Concho River 1421 Bacteria, Deressed DO Brazos 105

115 ANALYSES OF TXDOT MS4 DISCHARGING DIRECTLY INTO IMPAIRED WATER BODIES (IWB) TxDOT District 303(d) Listed Stream Stream Segment Pollutant of Concern Does TxDOT MS4 discharge directly into IWB? River Basin San Antonio Medina River Below Medina Diversion Lake 1903 Bacteria Lower Leon Creek 1906 Deressed DO, PCBs in edible tissue Uer Cibolo Creek 1908 Bacteria, chloride Salado Creek 1910 Bacteria, imaired fish and macrobenthic communities, Deressed DO San Antonio Uer San Antonio River 1911 Bacteria, imaired fish community Tyler Lake Palestine 0605 Bacteria, H, Deressed DO Angelina River Above Sam Rayburn Reservoir 0611 Bacteria Neches Waco Nolan Creek/South Nolan Creek 1218 Bacteria North Bosque River 1226 Bacteria Brazos Wichita Falls Wichita River Below Diversion Lake 0214 Bacteria Red 106

116 Table 7.4 Pollutant of Concern (POC)*, Targeted Controls, Benchmark Goals and Imlementation Schedules for Discharges to Water Quality Imaired Water Bodies with an Aroved TMDL POC* Focused Effort/Additional BMPs Benchmark Goals/Measurable Goals Imlementation Schedules Total Dissolved Solid (TDS)** Additional street sweeing and storm sewer clean out. OR Retrofit/install Permeable Friction Course (PFC) in affected ROW areas. OR Aly Imlementation Plan assigned to TxDOT Document the additional street sweeing or storm sewer clean out or retrofitting/installation of PFC (Projects of this tye that have gone to letting for the reorting eriod) OR Aly WLA I-Plan As needed or secify in WLA I- Plan. Reort (Projects of this tye that have gone to letting for the reorting eriod) in annual reort. Coer in water** Install Filter Stris, Grassy Swale, PFC, or ermanent structural controls or low imact develoment (LID) in affected ROW areas. OR Aly Imlementation Plan assigned to TxDOT Document the retrofitting/installation of additional controls OR Aly WLA I-Plan As needed or secify in WLA I- Plan. Reort (Projects of this tye that have gone to letting for the reorting eriod) in annual reort Chloride** Bacteria** Install berm erimeter for deicing rock ile or store materials inside cover area. OR Aly Imlementation Plan assigned to TxDOT Collaboration with other MS4 entities as needed. OR Public education outreach OR Additional research studies OR Aly Imlementation Plan assigned to TxDOT Document the retrofitting/installation of additional controls. OR Aly WLA I-Plan Document the collaboration efforts. OR Tyes of ublic outreach OR Results of research studies OR Aly WLA I-Plan As needed or secify in WLA I- Plan. Reort (Projects of this tye that have gone to letting for the reorting eriod) in annual reort As needed or secify in WLA I- Plan. Reort (Projects of this tye that have gone to letting for the reorting eriod) in annual reort Dissolved Oxygen (DO) Not alicable Not alicable Not alicable Sulfate Not alicable Not alicable Not alicable Aluminum in water Not alicable Not alicable Not alicable Selenium in water Not alicable Not alicable Not alicable Mercury in tissue Not alicable Not alicable Not alicable Dioxin in tissue Legacy Not alicable Legacy Not alicable Legacy Not alicable PCBs Legacy Not alicable Legacy Not alicable Legacy Not alicable Toxicity in Sediment Not alicable Not alicable Not alicable H Not alicable Not alicable Not alicable *List of POCs came from 2010 TCEQ 303(d) Category 5 list. ** POC that TxDOT MS4 may have otential to contribute to the imairment. 107

117 8.0 DISCHARGES TO THE EDWARDS AQUIFER RECHARGE ZONE 8.1 Permit Requirement Discharges of stormwater from the MS4, and other non-stormwater discharges, are not authorized by this ermit where those discharges are rohibited by 30 TAC Chater 213 (Edwards Aquifer Rule). New discharges located within the Edwards Aquifer Recharge Zone, or within that area ustream from the recharge zone and defined as the Contributing Zone, must meet all alicable requirements of, and oerate according to, 30 TAC Chater 213 (Edwards Aquifer Rule) in addition to the rovisions and requirements of this ermit. For existing discharges, the requirements of the agency-aroved Water Pollution Abatement Plan (WPAP) under the Edwards Aquifer Rule are in addition to the requirements of this ermit. BMPs and maintenance schedules for structural stormwater controls, for examle, may be required as a rovision of the rule. The ermittee s agency-aroved WPAPs that are required by the Edwards Aquifer Rule must be referenced in the SWMP. Additional agency-aroved WPAPs received after the SWMP submittal must be recorded in the annual reort for each resective ermit year. For discharges originating from the MS4 ermitted area, and located on or within ten stream miles ustream of the Edwards Aquifer Recharge Zone, alicants must also submit written notification to the aroriate TCEQ regional office. Counties: Comal, Bexar, Medina, Uvalde, and Kinney Contact: TCEQ, Water Program Manager San Antonio Regional Office Judson Road San Antonio, Texas (210) Counties: Williamson, Travis, and Hays Contact: TCEQ, Water Program Manager Austin Regional Office Park 35 Circle, Bldg. A, Rm 179 Austin, Texas (512)

118 8.2 Imlementation Overview All the secial recautions and requirements of the Edwards Rules are secifically related to the tye of geology in the area of roosed construction. These geologic conditions are rare and are only resent in isolated areas of the state s central region. For uroses of imlementation of this SWMP, TxDOT makes clear that the Edwards Rules only aly to three TxDOT Districts. The boundaries of these districts have at least one roadway corridor that coincides with the TCEQ designation of Edwards Aquifer Recharge Zone (RZ) or Contributing Zone (CZ) boundaries. Figure 8.1 dislays the Edwards Aquifer Zones. Below are the TxDOT Districts and the Counties of those Districts where the Edwards Rules aly: Austin District Williamson, Travis and Hays San Antonio District Comal, Bexar, Medina and Uvalde Laredo District - Kinney (not in MS4 Area) Within the areas listed above, if there is construction roosed in TxDOT ROW that is greater than a five-acre disturbance on the CZ; or any soil disturbance or regulated activity on the Recharge Zone; an alication and coordinating documentation will be rovided to the designated TCEQ Region office for review. This document can be either a Water Pollution Abatement Plan (WPAP); or if over the CZ a Contributing Zone Plan (CZP). These documents will describe the roject roosed, the water quality mitigation, the maintenance of both temorary and ermanent controls or the justification for any excetion request thereof. The roject will not commence until aroved by the Executive Director through the Region office review. 8.3 Best Management Practices (BMP) and Measurable Goals The roject site will include BMPs to limit Total Susended Solids (TSS). The TSS is calculated, using the rescribed methods within the TCEQ Guidance Manual (RG-348), for the site conditions and drainage character involved, requiring at least 80% TSS removal based on the new imervious cover roosed. Other additional or more secific ractices may be imosed by TCEQ reviewers if the work is roximal to areas of excetional sensitivity to ground water or endangered secies. The BMPs utilized may be any single or combination of devices listed in the TCEQ Guidance Manual that are aroved mitigation techniques. Examles of temorary controls would include silt fence, rock berms, gabions, temorary tras or detention basins and temorary seeding (hydromulch). Permanent controls would include ermanent wet onds, filtration basins, detention onds, grassy swales, vegetation filter stris, bio-filtration, various filtering devices built in-line of storm drains, hazardous material tras and orous avement surfaces. In addition to gaining aroval for the tye of BMPs chosen, TxDOT will also commit to maintaining the effective oeration of these ermanent controls and rovide eriodic insections for ongoing functionality. 109

119 The WPAP or CZP will be aroved by the TCEQ. The aroval letter from TCEQ reresents that if all directives are followed, there is no foreseeable significant imact to water quality. Edwards Aquifer Recharge Zone Metadata Figure TxDOT Agency Aroved WPAPs The following is a list of TxDOT Agency aroved WPAPs: Figure 8.2 TxDOT AGENCY APPROVED WPAPs EDWARDS ID PLAN TYPE REC DATE REGULATED ENTITY NAME TYPE OF RESPONSE RESPONSE DATE WPAP 1/14/00 BLANCO ROAD EXTENSION FM 2696 Aroved 3/21/ B WPAP-MOD 3/1/00 CEDAR PARK CAMPUS Aroved 4/25/00 110

120 TxDOT AGENCY APPROVED WPAPs EDWARDS ID PLAN TYPE REC DATE REGULATED ENTITY NAME TYPE OF RESPONSE RESPONSE DATE WPAP 4/4/00 I H 35 MAINLANES WIDENING Aroved 5/5/ WPAP 7/24/ WPAP 9/19/ WPAP 10/12/00 LOOP 1 STATE HIGHWAY 45 FRONTAGE ROAD COUNTY ROAD 271 AT MEDINA RIVER LOOP 1604 FROM FM 1535 TO BITTERS ROAD Aroved 9/25/00 Aroved 10/19/00 Aroved 12/6/ WPAP 12/12/00 FM 1325 Aroved 1/22/ WPAP 3/13/ WPAP 4/19/01 RM 620 WIDENING CSJ US 281 SOUTHBOUND FRONTAGE ROADS Aroved 5/1/01 Aroved 5/18/ WPAP 5/14/01 FM 1863 Aroved 6/15/ WPAP 7/30/01 LOOP 1 SH 45 INTERCHANGE SECTION 3 PHASE 1 EAST Aroved 3/14/ A WPAP-MOD 8/7/01 FM 2696 BLANCO ROAD Aroved 9/13/ WPAP 9/14/01 FM 306 AT HOFFMAN LANE Aroved 2/22/ WPAP 10/1/01 STATE HIGHWAY 45 SECTION 4A PHASE II Aroved 2/22/ WPAP 12/28/01 FM 3406 Aroved 2/1/ A WPAP-MOD 2/4/02 LOOP 1604 FROM FM 1535 TO BITTERS ROAD Aroved 3/14/ WPAP 2/20/02 RM 2244 WIDENING PROJECT Aroved 4/12/ WPAP 5/17/02 LOOP 1 STATE HIGHWAY 45 INTERCHANGE PHASE 1 WEST Aroved 8/14/ WPAP 5/21/02 LOOP 1 MAIN LANES Aroved 8/20/ WPAP 12/11/02 LOOP 1 EXTENSION PARMER LANE TO TANDEM BOULEVARD Aroved 4/1/ WPAP 3/12/03 LOOP 1 EXTENSION SECTION 2 Aroved 5/27/ WPAP 5/9/03 SH 45 SECTION VII Aroved 9/12/ WPAP 6/2/ WPAP 6/5/03 STATE HIGHWAY 130 SEGMENT 1 SECTION 1 SH 45 SECTION 8 - PARMER LANE TO RIDGELINE BLVD Aroved 9/12/03 Aroved 9/29/03 111

121 TxDOT AGENCY APPROVED WPAPs EDWARDS ID PLAN TYPE REC DATE REGULATED ENTITY NAME TYPE OF RESPONSE RESPONSE DATE WPAP 6/5/03 RM 1431 ACCELERATION DECELERATION LANES Aroved 9/12/ WPAP 7/21/03 US 183 SECTION 9 Aroved 12/31/ WPAP 8/28/03 STATE HIGHWAY 127 Aroved 12/17/ A WPAP-MOD 9/12/03 FM 734 LEFT TURN LANE Aroved 12/18/ WPAP 9/15/03 STATE HIGHWAY 130 SEGMENT 1 PHASE 2 Aroved 12/3/ WPAP 3/3/04 STATE HIGHWAY 46 Aroved 4/20/ WPAP 3/10/04 LOOP 1604 Aroved 5/13/ WPAP 3/11/04 RM 12 Aroved 4/26/ WPAP 8/10/04 RM 1051 Aroved 11/10/ WPAP 10/14/04 STATE HIGHWAY 29 CSJ Aroved 12/23/ A WPAP-MOD 11/8/04 LOOP 1604 AT BULVERDE ROAD Aroved 12/3/ WPAP 1/21/05 RM 620 CULVERT Aroved 4/1/ WPAP 3/4/05 STATE HIGHWAY 29 Aroved 5/17/ WPAP 3/10/05 US 290 WIDENING Aroved 5/16/ WPAP 3/29/05 US 281 Aroved 7/26/ WPAP 4/25/05 FM 1863 Aroved 6/14/ WPAP 5/23/ WPAP 6/9/ WPAP 7/25/ WPAP 7/25/ WPAP 9/1/05 STATE HIGHWAY 71 IMPROVEMENTS IH 35 FRONTAGE ROAD AND OVERPASS IH 35 FRONTAGE ONION BRANCH IH 35 SOUTHBOUND FRONTAGE SOUTH FORK SAN GABRIEL RIVER LOOP 1604 TOLL STARTER SYSTEM Aroved 9/22/05 Aroved 8/17/05 Aroved 8/15/05 Aroved 8/29/05 Aroved 6/5/ B WPAP-MOD 11/28/05 US 281 Aroved 6/5/ WPAP 1/6/06 RM 2243 Aroved 4/14/06 112

122 TxDOT AGENCY APPROVED WPAPs EDWARDS ID PLAN TYPE REC DATE REGULATED ENTITY NAME TYPE OF RESPONSE RESPONSE DATE WPAP 2/3/06 RM CREEK BEND BLVD Aroved 4/12/ A WPAP 2/17/06 FM 1535 Aroved 5/11/ WPAP 3/13/06 STATE HIGHWAY CR 241 AND CR 247 Aroved 4/12/ WPAP 4/27/06 FM 1283 Aroved 6/27/ WPAP 5/18/06 US OVERLOOK PARKWAY Aroved 7/13/ WPAP 6/1/06 STATE HIGHWAY FM 1560 CSJ Aroved 7/31/ WPAP 9/28/06 STATE HIGHWAY 46 Aroved 11/27/ WPAP 3/16/07 IH 35 AT SH 29 TURNAROUNDS Aroved 4/25/ WPAP 4/16/ WPAP 7/23/ WPAP 8/13/07 IH 10 LOOP 1604 SOUTH TO TRANSITION ZONE IH RM 620 BRIDGE TURNAROUND SH 46 AT RM 2722 IMPROVEMENTS Aroved 6/20/07 Aroved 9/7/07 Aroved 10/22/ A WPAP 1/15/08 RM 620 IMPROVEMENTS Aroved 2/29/ B WPAP 1/15/08 RM 620 IMPROVEMENTS Aroved 3/3/ C WPAP 1/15/08 RM 620 IMPROVEMENTS Aroved 3/3/ WPAP 1/29/ WPAP 9/5/ WPAP 9/5/ WPAP 9/8/08 FM 2696 GLADE CROSSING TO WEST OAK ESTATES IH 35 NORTHBOUND ACCESS RAMP MODIFICATIONS FM 2338 IMPROVEMENTS - FM 3405 TO D B WOOD RD IH 10 EAST BOUND FRONTAGE ROAD AT LEON CREEK Aroved 4/7/08 Aroved 10/10/08 Aroved 11/3/08 Aroved 10/27/ WPAP 10/22/08 IH 35 AT LAKEWAY DRIVE Aroved 12/31/ A WPAP-MOD 4/9/09 FM 1863 Aroved 5/11/ WPAP 2/11/ A WPAP 3/5/10 US 290 LOOP 1 DIRECT CONNECT RAMPS IH 35 NORTHBOUND FRONTAGE ROAD Aroved 4/22/10 Aroved 4/29/10 113

123 TxDOT AGENCY APPROVED WPAPs EDWARDS ID PLAN TYPE REC DATE REGULATED ENTITY NAME TYPE OF RESPONSE RESPONSE DATE A WPAP-MOD 3/26/10 FM 971 Aroved 5/5/ WPAP 5/24/10 RM 12 IMPROVEMENTS Aroved 6/29/10 WPAP 3/2/11 SH 29 at Cimarron Hill Aroved 4/20/11 WPAP 2/17/11 RM 620 Imrovements Aroved 4/28/11 WPAP 7/21/11 SH 127 Aroved 9/7/11 WPAP-MOD 7/28/11 SH 45 O'Conner Drive Aroved 9/9/11 WPAP 7/7/11 FM 1626 Aroved 9/21/11 WPAP 8/11/11 Loo 337 at Ridge Hill Aroved 10/11/11 WPAP 10/31/11 Loo 1604 at Vance Jackson Aroved 12/13/11 WPAP-MOD 2/29/12 IH 35 Northbound frontage Aroved 4/9/12 WPAP 7/2/12 SH 195 CR 240 to IH 35 Aroved 9/11/12 WPAP 7/19/12 FM 306 Aroved 9/14/12 WPAP-MOD 11/26/12 IH 10 LOOP 1604 SOUTH TO TRANSITION ZONE Aroved 1/7/13 WPAP 2/11/13 RM 12 at Oakwood loo Aroved 3/21/13 WPAP 2/14/13 FM 306 at Hunter road Aroved 4/4/13 WPAP 5/3/13 North Walnut Ave Aroved 6/18/13 WPAP 3/4/13 Loo 1 Shared Use Path Aroved 7/2/13 WPAP 6/3/13 FM 1626 Aroved 9/6/13 WPAP 11/1/13 IH 35 ram reversal Aroved 4/16/14 WPAP 2/10/14 RM 967 Aroved 4/10/14 WPAP 3/5/14 RM 1431 Diverging diamond intersection Aroved 5/28/14 WPAP 4/9/14 Sur 53 Aroved 5/29/14 WPAP 2/12/14 Loo 1 shared use ath at 360 Aroved 6/3/14 WPAP 3/21/14 FM 1460 Aroved 7/18/14 WPAP 5/22/14 RM 12 Hugo Road to Pioneer Trail Aroved 8/27/14 114

124 TxDOT AGENCY APPROVED WPAPs EDWARDS ID PLAN TYPE REC DATE REGULATED ENTITY NAME TYPE OF RESPONSE RESPONSE DATE WPAP 6/26/14 FM 487 Aroved 9/10/14 WPAP 4/22/14 SH 127 at Frio River Aroved 9/11/14 WPAP 1/14/15 SH45 at Pearson Ranch Road Aroved 2/16/15 WPAP 1/15/15 RM 12 Saddleridge Drive to Hugo Road Aroved 2/20/15 WPAP 1/26/15 FM 3406 Aroved 3/11/15 WPAP 4/8/15 Loo 337 at Ridge Hill Drive Aroved 5/22/15 WPAP 4/3/15 RM 2244 Redbud to Walsh Tarlton Aroved 6/8/15 WPAP 7/17/15 Loo 360 at Loo 1 Aroved 8/21/15 Definitions: WPAP=Water Pollution Abatement Plan WPAPMOD=Water Pollution Abatement Plan Modification TxDOT Agency Aroved WPAPs TxDOT will submit any additional agency-aroved WPAPs received after the SWMP submittal and aroval in the annual reort for each resective ermit year. 8.4 Discharges to the Edwards Aquifer Recharge Zone Imlementation Schedule Activity, and Measurable Goal Table 8.1 DISCHARGES TO THE EDWARDS AQUIFER RECHARGE ZONE Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug TxDOT Agency Aroved WPAPs Track Agency aroved WPAPs Submit a list of agencyaroved WPAPs in the annual reort for the resective ermit year. District ENV 115

125 9.0 EXPENDITURES 9.1 Permit Requirements 2. Statewide Annual Reort (l) Annual exenditures for the reorting year, with a breakdown for the major elements of the SWMP, and the budget for the year (reorting year) following each annual reort. 9.2 Program Overview Allocations of funds for environmental controls, stormwater management, and training are rojected to remain somewhat constant for the foreseeable future. 9.3 Best Management Practices and Measurable Goals To be in comliance with the Exenditures requirement, TxDOT will include the following exenditures that are considered reresentatives of the funding sent on the stormwater management rogram: MCM 1 Public Education, Outreach, Particiation, and Involvement; MCM 2 Illicit Discharge Detection and Elimination (IDDE); MCM 3 Construction Site Stormwater Runoff Control; MCM 4 Post-Construction Stormwater Management in Areas of New Develoment and Redeveloment; MCM 5 Pollution Prevention and Good Housekeeing for Transortation Oerations; The above exenditures and rojected exenditures will be included in the annual reort. 116

126 9.4 Exenditures Imlementation Schedule Activity, and Measurable Goal Table 9.1 EXPENDITURES Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug 9.1-Exenditures Develo the cost of exenditures reresentatives of the funding sent on the stormwater management rogram Include the exenditures in the annual reort. ENV 117

127 10.0 OTHER REQUIREMENTS 10.1 Permit Requirements By the end of the ermit term, TxDOT must have comleted and submitted to TCEQ original U.S. Geological Survey toograhic quadrangle mas, or similar toograhic mas with a scale between 1:10,000 and 1:24,000, which clearly delineates the following information: 1) All oints of discharge from the MS4 area that were not submitted with the TxDOT MS4 ermit alication received by TCEQ on March 18, 2013; and 2) The location of major structural controls for stormwater discharge, including detention/retention onds, major infiltration devices, etc. The TxDOT will submit the requested information with the statewide annual reorts over the five year ermit term, such that each annual reort submittal includes 20 ercent of the information required in this section Program Overview The maing of all oints of discharge from the MS4 and location of major structural controls for stormwater discharge will be erformed by TxDOT ENV Best Management Practices and Measurable Goals TxDOT will comlete 20 ercent of the maing er ermit year Other Requirements Imlementation Schedule Activity, and Measurable Goals Table 10.1 OTHER REQUIREMENTS - TOPOGRAPHIC MAPS Permit Year/Month BMP Activity Measurable Goals Resonsible Staff 10.1-Point of Discharge Maing Ma oints of discharge from the MS4 area that were not submitted with the TxDOT MS4 ermit alication received by TCEQ on March 18, Comletion of 20 ercent er year. Submit udated mas with the annual reort. ENV Annually/Aug 10.2-Major Structural Control Maing Ma the location of major structural controls for stormwater discharge, including detention/retention onds, major infiltration devices, etc. Comletion of 20 ercent er year. Submit udated mas with the annual reort. ENV 118

128 11.0 LEGAL AUTHORITY The Texas Transortation Commission, as rovided in Article 6673, Vernon s Annotated Texas Statutes (V.A.T.S.), is authorized to lan, construct, oerate, and maintain the state highways system in Texas. TxDOT is the state agency charged with carrying out this authorization. It is stated in Article 6674w-3, V.A.T.S., that TxDOT may acquire lands for the urose, among many others, of draining any state highway. The statutes, along with rules set forth in the TAC, give TxDOT the ower to construct, oerate, and maintain a drainage system for state highways to accommodate the stormwater that originates within, and reaches highway ROWs. TxDOT contracts with others for the construction, and sometimes for the maintenance, of these systems. Article 6674k, V.A.T.S., rovides that the form of such contracts must be rescribed by the Texas Transortation Commission and may contain language advantageous to the state. The deartment may control these systems in this manner. Article 6673b, V.A.T.S., allows TxDOT to enter into necessary contracts with cities regarding various asects of state highways within their cororate limits. TxDOT, through the TAC, has adoted rules governing these agreements. As a result, there are municial maintenance agreements with cities that outline the resonsibilities regarding, among other things, the maintenance of the highways, which would include the maintenance of the drainage systems aurtenant to the highways. The TAC further rovides that, when others desire to cross highways with a drainage facility, the design, construction, oeration, and maintenance of the facility must be accetable to TxDOT. The statutes of the State of Texas give TxDOT the ower to control virtually all of the activities occurring within the ROW, but there is little, if any, authority to regulate discharges occurring off the ROW and flowing into state maintained drainage systems. 119

129 12.0 RESOURCES TxDOT rovides adequate funds, staff, equiment, and suort caabilities to imlement its activities under this SWMP. TxDOT sends rogram funding on litter removal, street sweeing, sot litter ick-u, Adot-a-Highway rograms, vegetation control, ditch maintenance, culvert and storm drain maintenance, stormwater um station maintenance, and channel maintenance. The cost of TxDOT environmental and stormwater training classes are charged to the overhead accounts of each section trained and are not secifically tracked for stormwater costs. Public involvement and education rograms are mostly funded by TxDOT s administration in Austin. In addition, some minor funding for emloyees has come out of the overhead of the district s Advance Transortation Planning section. All funding for stormwater maintenance costs, administration, training, and ublic involvement and education originates with the Texas Legislature and is allocated by this legislature to the deartment. If warranted, District-secific controls will be develoed and imlemented in accordance with TxDOT's TPDES ermit. 120

130 13.0 SWMP REVIEW AND UPDATES The SWMP will be evaluated annually to determine the lan s effectiveness and efficiency. The SWMP will be revised as necessary to suort needed changes based on the SWMP evaluation and/or requests made through ermit requirements. The annual review of the current SWMP will be conducted in conjunction with the rearation of the annual reort required under this ermit. If required, the SWMPs will be revised by TxDOT during the term of the ermit in accordance with the aroved ermit rocedures. If warranted, additional District-secific controls will be develoed and imlemented in accordance with TxDOT's TPDES Permit. 121

131 14.0 RECORDKEEPING 14.1 Permit Requirements Section B. Recordkeeing 1) The ermittee shall retain all records, a coy of this TPDES ermit, and records of all data used to comlete the alication for this ermit and to satisfy the ublic articiation requirements, for a eriod of at least three (3) years, or for the remainder of the term of this ermit, whichever is longer. This eriod may be extended by a request from the executive director at any time. 2) The ermittee shall submit the records to the executive director only when secifically asked to do so. The statewide SWMP required by this ermit (including a coy of this ermit) must be retained at a location accessible to the TCEQ. 3) The ermittee shall make the alication and the statewide SWMP available to the ublic at reasonable times during regular business hours, if requested to do so in writing. Coies of the SWMP must be made available within ten (10) working days of receit of a written request. Other records must be rovided in accordance with the Texas Public Information Act. However, all requests for records from federal facilities must be made in accordance with the Freedom of Information Act. 4) The eriod during which records are required to be ket shall be automatically extended to the date of the final disosition of any administrative or judicial enforcement action that may be instituted against the ermittee Program Overview TxDOT retains the SWMP and all associated records for at least three years after coverage under this ermit terminates Best Management Practices and Measurable Goals TxDOT will maintain all SWMP records for a minimum of three years Recordkeeing Imlementation Schedule Activity, and Measurable Goal Table 14.1 RECORDKEEPING Permit Year/Month BMP Activity Measurable Goals Resonsible Staff Annually/Aug Recordkeeing Maintain records for three years. Make the ermit alication and SWMP available to the ublic during regular business hours. Kee records after three years during administrative or enforcement actions. Maintain records as set forth. Submit records to TCEQ when asked by their Director. This BMP does not need to be reorted in the annual reort. ENV 122

132 15.0 REFERENCES 1. TxDOT. Occuational Safety Manual, July TxDOT. Emergency Resonse Standard Oerating Procedure No TxDOT. Roadside Vegetation Management Manual, Setember htt://onlinemanuals.txdot.gov/txdotmanuals/veg/vegetation_management_guidelin es.htm 4. TxDOT. Construction Site Runoff and Post Construction Runoff Control, June T:\NRM\WRM\MS4\Manual_Guidance_forSWMP\Manuals\Construction_Site_runoff_a nd_post_const_runoff (June 2010).docx 5. TxDOT. Don t Mess with Texas. htt://dontmesswithtexas.org 6. TxDOT. Temorary Erosion, Sedimentation, and Environmental Controls SP htt:// 7. TxDOT. FHWA Evaluation and Management of Highway Runoff Water Quality, December ft://ft.odot.state.or.us/techserv/geo- Environmental/Environmental/Procedural%20Manuals/Water%20Quality/References/ Evaluation%20and%20Management%20of%20Highway%20Runoff%20Water%20Qu ality.df 8. TxDOT. Herbicide Oerations Manual, ft://ft.dot.state.tx.us/ub/txdot-info/mnt/herbicide-manual.df 9. TxDOT. The Hydraulic Design Manual, July htt://onlinemanuals.txdot.gov/txdotmanuals/hyd/index.htm 10. TxDOT. Recommended BMPs for TxDOT Storm Water System Maintenance Oerations. htts://ft.dot.state.tx.us/ub/txdot-info/env/mnt-bm.df server) 11. TxDOT. Roadside Vegetation Management Manual, Setember htt://onlinemanuals.txdot.gov/txdotmanuals/veg/index.htm 12. TxDOT. Storm Water Field Insector s Guide, June htts:// 13. TxDOT. Storm Water Management Guidelines for Construction Activities, July 2002 ft://ft.dot.state.tx.us/ub/txdot-info/env/storm/1introtoc.df 123

133 14. TxDOT Storm Water Planning and Design Guidelines for New Develoment and Significant Redeveloment. June T:\NRM\WRM\MS4\Manual_Guidance_for SWMP\Manuals\Stormwater_Planning_and_Design_New_Develo_and_Redevelome nt (June 2010).docx (store in ENV hard drive) 15. TxDOT. TxDOT Secification Construction and Maintenance of Highways, Streets, and Bridges, Item 506. htt:// 16. TxDOT. TxDOT Secification Erosion, Sedimentation and Water Pollution Prevention and Control. htts://ft.txdot.gov/ub/txdot-info/cmd/cserve/secs/1995/standard/m506.df 17. TxDOT. Use of Right-of-Way by Others Manual, December htt://onlinemanuals.txdot.gov/txdotmanuals/use/index.htm 18. TxDOT. Utility Accommodation Policy Manual by the Division of Right-of-Way. htt://onlinemanuals.txdot.gov/txdotmanuals/utl/references_for_utility_accommodat ion.htm 19. United States Deartment of Transortation. Emergency Resonse Guidebook. htts:// uidebook.df 124

134 Studies Erosion and Sediment Control Research Studies TxDOT Project No An Evaluation of the Use and Effectiveness of Temorary Sediment Controls (897 KB)* A Review and Evaluation of Literature Pertaining to the Quantity and Control of Pollution from Highway Runoff and Construction (1,009 KB)* Effects of Highway Construction and Oeration on Water Quality and Quantity in an Ehemeral Stream in the Austin, Texas area (688 KB)* TxDOT Project No Water Quality Characteristics and Performance of Comost Filter Berms (2,667 KB)* Evaluation of Imact from Storm Water Discharges Associated with Road Construction Activities on Receiving Streams (1,457 KB)* TxDOT Project No Temorary Erosion Control Measures Design Guidelines for TxDOT (3,701 KB)* NCHRP 25-25(04) Environmental Stewardshi Practices, Procedures, and Policies for Highway Construction and Maintenance (4,989 KB)* Permanent Controls Research Studies TxDOT Project No Evaluation of the Performance of Runoff Controls (1,807 KB)* Use of Vegetative Controls for Treatment of Highway Runoff (2,155 KB)* Effectiveness of Permanent Highway Runoff Controls: Sediment/Filtration Systems (2,161 KB)* TxDOT Project No Retrofitting Drainage Systems for Water Quality (2,007 KB)* TxDOT Project No Pollutant Removal on Vegetated Highway Shoulders (4,726 KB)* 125

135 ATTACHMENT A TCEQ/TxDOT MOU 126

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146 ATTACHMENT B TXDOT TRAINING CLASSES 137

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150 Audience Training Course Environmental and Hazard Communication Training Matrix Class Code Course Descrition Environmental coordinators Stream Assessment & Restoration ENV 205 Discussions including Stream mechanics, geomorhology, stream and riarian ecology, site assessment and data collection, hydrologic, hydraulic, and stability analysis, channel design, issues including erosion and deosition, and construction considerations and ermitting requirements. Maintenance staff Small Sill Resonse Training SFH410 This course rovides the necessary information to safely resond to small sills of toxic materials which may occur in TxDOT laboratories or worklace situations. Emloyees who handle hazardous materials Hazard Communication SFH420 The urose of this course is to fulfill the requirements of the Texas Hazard Communication Act which is atterned after the federal Occuational Safety and Health Administration (OSHA) Hazard Communication Standard. The training includes regulation requirements and the imortance of the information on the material safety data sheet. Emloyees who handle hazardous materials HazCom/Environmental Refresher SFH421 This course is a refresher for Hazard Communication and Environmental Pursuit. It reinforces the rinciles and tools used to communicate the dangers of hazardous chemicals used in the worklace and the role of TxDOT emloyees as stewards of the environment. After initial training, refresher training is required every five (5) years. Emloyees whose activities involve handling oil Sill Prevention Control and Countermeasure (SPCC) District- Secific Code This course reares emloyees who are involved with maintaining the storage and usage of oil roducts and describes actions that should be taken in the event of a release of oil roducts. 141

151 Audience Training Course Maintenance MS4 Training Matrix Class Code Course Descrition Maintenance suervisors and secifically identified maintenance emloyees Maintenance Section Suervisor Course MNT 123 The course is designed to rovide maintenance section suervisors and secifically identified maintenance emloyees with information, ractical alications and resources to hel them erform their jobs more efficiently, effectively and safely. AEs, maintenance suervisors, de-icing alicators, Regional fleet and equiment managers Anti-Icing/De-icing Equiment Training MNT 149 Classroom training on anti-icing, de-icing materials and roer alication rates and calibration techniques. Three hour equiment insection and calibration with hands on training. Oerators will be able to calibrate their equiment to insure more accurate alications on the roadways. They will have a thorough understanding of rates of materials to be alied, truck nozzle configurations and oututs of nozzles, and calibration of sray equiment being used. Suervisors, assistants, alicators, and back-u alicators involved in the esticide rogram. Maintenance ersonnel with a Pesticide Alicators License Herbicide Certification MNT 410 Herbicide Equiment Training MNT 411 The current Agriculture Code requires TxDOT emloyees to ossess a valid, non-commercial, esticide alicator's license rior to alying herbicide on the transortation system right-ofway, or on the grounds of any TxDOT building. This hands-on training focuses on the roer oeration and maintenance of herbicide equiment used by maintenance ersonnel who already ossess a esticide alicator's license. The course will ensure roer alication of herbicide equiment and decrease down time for equiment reairs. 142

152 Audience Training Course Maintenance MS4 Training Matrix Class Code Course Descrition TxDOT design, construction insection and maintenance ersonnel Maint. Suervisors, Asst. Maint. Suervisors, Equiment Oerators, and section suort staff Revegetation Training MNT 412 Winter Weather Oerations MNT 812 Designer training introduces roadway design engineers to the design concets and tasks necessary to develo lans and secifications that lead to successful revegetation. Insector training instructs construction insectors how to effectively insect and monitor the revegetation activities to ensure successful revegetation. Winter weather oerations are critical for the efficient movement of eole and goods across the State of Texas. It is imortant that each District and its maintenance sections rovide an accetable level of service during snow and ice events that ermit traffic movement to take lace under varying weather conditions. This level of service is deendent on organizing State equiment and forces, maintaining lines of communication both within the deartment and with outside agencies, keeing the ublic informed of road conditions, making TxDOT staff and other agencies aware of the changing weather conditions and its effect on the roads. This course will assist and hel ersonnel make those sound, reasonable decisions that rovide for the safest oeration ossible of the highway system during inclement weather. 143

153 ATTACHMENT C TCEQ REGIONAL OFFICES 144

154 145

155 ATTACHMENT D ALLOWABLE NON-STORMWATER DISCHARGES 1. Water line flushing (excluding discharges of hyer chlorinated water, unless the water is first dechlorinated and discharges are not exected to adversely affect aquatic life); 2. Runoff or return flow from landscae irrigation, lawn irrigation, and other irrigation utilizing otable water, groundwater, or surface water sources; 3. Discharges from otable water sources that do not violate Texas Surface Water Quality Standards; 4. Diverted stream flows; 5. Rising ground waters and srings; 6. Uncontaminated ground water infiltration; 7. Uncontaminated umed ground water; 8. Foundation and footing drains; 9. Air conditioning condensation; 10. Water from crawl sace ums; 11. Individual residential vehicle washing; 12. Flows from wetlands and riarian habitats; 13. Dechlorinated swimming ool discharges that do not violate Texas Surface Water Quality Standards; 14. Street wash water excluding street sweeer waste water; 15. Discharges or flows from emergency fire fighting activities (fire fighting activities do not include washing of trucks, runoff water from training activities, test water from fire suression systems, and similar activities); 16. Other allowable non-stormwater discharges listed in 40 CFR (d)(2)(iv)(B)(1); 17. Non-stormwater discharges that are secifically listed in the TPDES Multi Sector General Permit (MSGP) TXR or the TPDES Construction General Permit (CGP) TXR150000; 18. Discharges that are authorized by a TPDES or NPDES ermit or that are not required to be ermitted; and, 19. Other similar occasional incidental non-stormwater discharges such as sray ark water, unless the TCEQ develos ermits or regulations addressing these discharges. 146

156 ATTACHMENT E ENV ITEM 303 MS4 Outfall Identification, Verification, Follow-u and Illicit Discharge Detection & Elimination (IDDE) Program Descrition: A rocess to be utilized for identification, verification, recording, screening, classification, and tracking of TxDOT s Municial Searate Storm Sewer System (MS4) outfalls located within the urbanized area of the right-of-way (ROW) for comatibility with TxDOT s Advanced Outfall Tracking System (AOTS) Procedures for Outfall Identification, Verification, Follow-u and Illicit Discharge Detection & Elimination (IDDE) Program: Unless otherwise secified in the work authorization, a field team comosed of an MS4 Environmental Technician and a GIS Technician shall erform field data collection. The Technical Exert shall erform the outfall maing using the following stes: Perform research to determine numbers of otential new outfalls, unless the information has been rovided to the Technical Exert by TxDOT. Perform research to determine outfalls that require verification or follow-u, unless the information has been rovided to the Technical Exert by TxDOT. Generate a ma, either hard coy or electronic file, to be utilized during field activities that includes TxDOT s MS4 regulated area boundaries; name and location of roadways subject to the MS4 ermit requirements; name and location of the surface waters that intersect the roadways; name and location of surface water bodies to which the regulated MS4 discharges, name and boundary of the watersheds in which the regulated MS4 is located; and location of otential new outfalls. Perform a re-field activity meeting among the field team and with the District POC or ENV PM to ensure communication of roject goals and the required deliverables. Utilize a State-aroved mobile Android or ios device to identify, screen, classify, and record required data in accordance with the requirements stiulated in the Contract, and in the ENV Item 340 (relating to Do Forms Data Collection and Processing Procedures for Municial Searate Storm Sewer System (MS4) Outfall Maing ). The Technical Exert shall erform the outfall maing when there is no runoff from the last rain event. Ma and record all of the external major and minor outfalls within the MS4 regulated areas. Maing of the internal outfalls must be authorized by the ENV PM. Thirdarty outfalls shall be maed only if the Technical Exert confirms a susected or obvious illicit discharge or the outfall meets the TCEQ definition of major outfall. Perform quality assurance/quality control (QA/QC) of collected data. Correct, adjust and revise the satial data as well as the detailed and secific information required in the ENV QA/QC Sheet rovided in the DoForms Manual. 147

157 303.3 Procedures for Illicit Discharge Detection & Elimination (IDDE) Program. The Technical Exert shall erform the IDDE rogram using the following stes: Perform the illicit discharge detection of the outfalls only if a dry weather qualifying event occurs during the outfall maing event or during the IDDE event, unless authorized by the TxDOT Project Manager. Use TxDOT s Outfall Field Insection Work Flow Diagram and Classification Scheme and Associated Tables for the Flow Diagram (Table 1, 2, and 3), rovided in the DoForms Manual to screen for an illicit discharge. Outfall classifications must be recorded in the TxDOT- aroved unit. Perform Field Screening using the Work Flow Diagram and the Technical Exert s exertise to identify if an outfall shall be classified as Unlikely Illicit Discharge, Potential Illicit Discharge, or Obvious Illicit Discharge. Classify an outfall as Unlikely Illicit Discharge using hysical arameters listed in the Associated Table 1 and other aroriate field observation. Classify an outfall as Potential Illicit Discharge using hysical arameters observation or in conjunction with the field water chemistry described in the Associated Table 2. Using an aroriate consumable test kit for field water chemistry (e.g., Lamotte or other rior-aroved field test kit) to screen for the following otential ollutants and/or characteristics: Ammonia_Nitrogen, Total Chlorine, Detergent, H, Total Coer, and Phenols Results of the hysical arameters and field water chemistry analyses must be recorded in the State aroved unit. Classify an outfall as Obvious Illicit Discharge by hysical observations and by collecting field water chemistry data according to the Associated Table 3. Verify if an outfall should be classified as Obvious Illicit Discharge by collecting a water samle and submitting the samle to a National Environmental Laboratory Accreditation Conference (NELAC)-accredited laboratory for the aroriate chemical analyses in accordance with the Associated Table 3. Results of the lab water chemistry analyses shall be recorded in the State rovided sreadsheet. Any ertinent details regarding the ossible origin(s) of the discharge shall be documented in the state rovided sreadsheet and in a Field Logbook. The Field Logbook is only required for field samling and laboratory data collection Procedures for Reort an Obvious Illicit Discharge: Notify the District POC and ENV PM of the Obvious Illicit Discharge using electronic mail, after an obvious illicit discharge is observed and confirmed with laboratory water chemistry analysis, within one (1) day of confirmation of the laboratory results or by 9:00 a.m. of the first business day following the confirmation of the laboratory results. A Letter Reort including all laboratory results, suitable for submission to EPA, the Texas Commission on Environmental Quality (TCEQ), or the receiving MS4, shall also be submitted via to 148

158 both the District POC and the ENV PM within 48 hours of comletion of the laboratory analysis Data Submittal: All collected outfall field data, when comlete, must be transferred to a TxDOT FTP site that will be secified by the State. The Technical Exert shall submit the data in accordance with the requirements stiulated in the Contract, and in the ENV Item 340 (relating to DoForms Data Collection and Processing Procedures for Municial Searate Storm Sewer System (MS4) Outfall Maing) and must coordinate with the State to modify or correct the data until successful uload of the data into AOTS has been achieved. 149

159 ATTACHMENT F ENV ITEM 340 DoForms Data Collection and Processing Procedures for Municial Searate Storm Sewer System (MS4) Outfall Maing DESCRIPTION: DoForms is an interface that allows for real time sharing of field collected data. Field crews collect data, sync information to the cloud, and a deskto user downloads the information for subsequent quality assurance/quality control (QA/QC) review for later submission to TxDOT. DoForms shall be used to ma, conduct dry-weather screening, and classify outfalls within TxDOT MS4 regulated areas. Consideration shall be given to a combination of visual observations, hysical observations, and field-measured water chemistry results in order to classify each outfall as following: Unlikely Illicit Discharge Potential Illicit Discharge Obvious Illicit Discharge EQUIPMENT AND REFERENCES: The Technical Exert shall use a mobile Android or ios device that has both a data connection and a true GPS receiver. The DoForms alication must be installed in the State-aroved Android or ios device rior to field activities and must be used to collect and rocess the field data PROCEDURES: The Technical Exert shall use the State-aroved device and the DoForms alication to collect data, classify outfalls, and submit the rocessed data to the State using a State-rovided file-transfer rotocol (FTP) site (TxDOT Dro Box). The Technical Exert shall create a DoForms account to manage the data collected. The TxDOT GIS Coordinator must be included as a user (READ-ONLY) of the Technical Exert s DoForms account. Details associated with rocedures for the data collection effort are resented below Setu a DoForms Account and Imort a DoForms Alication The Technical Exert shall setu the DoForms website account and then setu the mobile alication based on the website information (Refer to user guides for further clarification). The Technical Exert must utilize the State-rovided DoForms manual together with this ENV ITEM. The Technical Exert shall review the following documents and websites: a. htt:// b. htt:// c. htt:// The Technical Exert shall download and install the DoForms Alication from the AStore (ios) or the Play Store (Android) to the State-aroved devices as well as imort the TxDOT AOTS DoForms, into their account without modification. 150

160 The following diagram resents the general rocess. OVERVIEW OF WORKFLOW Field Activity and Field Documentation Prior to mobilizing a field crew to the site to conduct outfall maing/screening, the Technical Exert shall erform the following: Verify that TxDOT AOTS DoForms alication is loaded into the device; Verify that the MS4 regulated boundaries are loaded into the device or marked on survey mas; Verify that surface waters to be maed, which include NHD files (i.e., water bodies) and relevant NWI files (i.e., laya), are loaded into the device or marked on survey mas; Verify that TxDOT ROW center lines for the assigned District are loaded into the device or marked on survey mas; Verify that the device has the required data and is functioning normally; Verify with TxDOT Project Manager the outfall numbering for the first outfall; Verify with the District oint of contact (POC) or TxDOT Project Manager the locations of the relevant ROWs and associated outfalls to be surveyed; and, If requested, develo and submit an electronic ma that shows the assigned roadways with the ROW and otential new outfalls. 151

161 The Technical Exert shall erform, at a minimum, the following for field documentation: Become familiar with the DoForms alication and TxDOT s data dictionary (e.g., features and attributes) and the urose of each entry or field. Comlete each field shown in the DoForms alication. Note: Fields with a red asterisk are required to be comleted. Some fields have default values oulated, which may need to be revised as necessary by following the hints rovided in the form. Label or name the outfall using the following naming convention: Three-letter TxDOT District abbreviation_county abbreviation, the last number of the revious outfall, lus one (e.g., an outfall in the TxDOT Dallas District, in Denton County, for which the revious outfall maed was assigned the number 00398, the next outfall name in sequence would be DAL_DN_00399). If in doubt, contact TxDOT Project Manager rior to field activity. Note: The numerical ortion of the outfall nomenclature must be consecutive for a District regardless whether crossing county boundaries (e.g., there should not be both DAL_DN_00399 and DAL_CO_00399 recorded). Record all relevant outfalls and associated characteristics, including both hysical and field chemical observations, in the State-aroved device. All non-secific entries in the device (e.g., other, unknown, etc.) shall be exlained in the comment field. Take two (2) hotograhs with the State-aroved device when romted in the DoForms alication. The first hotograh shall be an ustream view (Photo 1) caturing the outfall with the above watershed, if ossible. The second hotograh (Photo 2) shall cature the outfall oint and the downstream receiving water or discharge route. If the outfall has an obvious illicit discharge, at least one hotograh shall illustrate the factor(s) that caused the Technical Exert to susect an illicit discharge. For both hotograhs, the outfall name should be written on a dry erase board in each hotograh. Perform quality assurance/quality control (QA/QC) rocedures for each hotograh and retake the hotograh, if necessary. Record all field analytical results in the State-aroved device using the instructions rovided in the DoForms or the Data Dictionary QC document. 152

162 Post-Processing the Collected Data The Technical Exert shall erform the following tasks to ost rocess all of the fieldcollected data rior to submittal to TxDOT via a State-rovided FTP site: Field data from the aroved device is submitted to the Technical Exert s DoForms account. When back in the office, the Technical Exert will download insection records from the DoForms account for QA/QC daily. Notify the TxDOT GIS Coordinator at the end of the first insection day for reliminary QA/QC of the first set of collected data. Data will be downloaded in a tabular format (.xls) and before creating a shaefile, the order of the fields will be arranged to match the order defined in the data dictionary QC document, which can be found as Attachment A in the manual. Note: Do not change/revise the attribute abbreviation name. Do not include any fields that are not listed in the data dictionary document. Once the insection data schema is verified, visualize and verify data using GIS software (see Section below or age 18 of the manual). With the data now in ArcGIS execute the AOTS_DoForms scrit to download hotograhs for each record (see Section below or age 18 of the manual). Two additional fields must be added during ost rocessing: i) a field for County [Name: County, Tye: String, Length: Default]; and ii) a field for City Name [Name: City, Tye: String, Length: 100], and oulate with the correct data. The metadata file must be comletely filled out. The State-rovided data dictionary QC document (see Manual Attachment A) must be used to verify the accuracy of the data collected in addition to the Technical Exert s QA/QC rocedures. All errors and/or discreancies must be corrected before submittal to the State. After comleting 100% QA/QC of the data, ackage shaefile of outfall insections, associated hotograhs and original exort from DoForms (original.xls) for delivery to TxDOT via method described in Section DoForms Shaefile Creation and Photograh Downloader Instructions STEP 1: Unzi the tool Unzi the Shaefile Creation and Photograh Downloader tool to an easy-to-find location such as C:\ or whatever ath makes sense within your organization s network. STEP 2: Create a shaefile Oen a new ArcMa document and ensure that the dataframe is set to a geograhic coordinate system (WGS 84). Add your roject data downloaded from DoForms as an.xls formatted file. 153

163 Right click on the table you just added and choose dislay XY data. You should now have a oint layer stored in memory in your MXD document. Right click on this layer and choose Data -> Exort Data in order to record data in memory layer to disk. Exort as a shaefile to {ath_where_you_unzied_the_scrit_tool} \AOTS_DoForms\Deliverable\Shaefile\. In ArcMa oen the Catalog window and navigate to the location where you unzied the tool. Exand the DoForms Toolbox and double-click on the DoForms Model Select the shaefile that you just created and hit ok to run the tool. When the tool is finished you should see similar messages to this screen shot: Zi the Deliverable folder and send it to TxDOT via the FTP link TxDOT will rovide you for data delivery following

164 Transfer of Post-rocessed Data to the TxDOT FTP Site The Technical Exert shall transfer ost-rocessed outfall data and the associated hotograhs to the TxDOT FTP site. The Technical Exert shall also send notification of the data transfer to the TxDOT ENV Project Manager via . The Technical Exert shall transfer the following: a. The Deliverable folder found in the AOTS_DoForms folder. This folder includes two subfolders: Images and Shaefile. b. In addition to the ost-rocessed data, include the original downloaded excel file from DoForms. c. Comress the Deliverable folder to a zi-file and name the zi-file District Abbreviation_Outfall_Date of submittal (YY-MM-DD Ex: AUS_Outfall_14_06_06 d. Include the original excel file that was downloaded from DoForms in this zi-file. Data ackage will be transferred to TxDOT via the State-rovided file-transfer rotocol (FTP) site (TxDOT Dro Box 155

165 ATTACHMENT G 156

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167 ATTACHMENT H EMS STAGE GATE CHECKLIST 158

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174 ADVANCED PLANNING AND DEVELOPMENT (AP&D) STAGE GATE CHECKLIST 165

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178 PLANS, SPECIFICATIONS AND ESTIMATES (PS&E) STAGE GATE CHECKLIST 169

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182 ATTACHMENT I 173

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186 ATTACHMENT J TxDOT Facility Environmental Comliance Survey Form 177

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190 NI - Not Investigated NA - Not Alicable RQD - Required BMP - Best Management Practice Version: March

191 ATTACHMENT K TMDL BMP FLOW CHART 182

192 183