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Home My WebLink AboutNCS000494_Lewisville Draft SWMP v2_20210420 Draft Stormwater Management Plan Town of Lewisville NCS000494 July 1, 2021 Table of Contents PART 1: INTRODUCTION ........................................................................................................................ 1 PART 2: CERTIFICATION ........................................................................................................................ 2 PART 3: MS4 INFORMATION .................................................................................................................. 3 3.1 Permitted MS4 Area ..................................................................................................................... 3 3.2 Existing MS4 Mapping ................................................................................................................. 4 3.3 Receiving Waters .......................................................................................................................... 5 3.4 MS4 Interconnection ..................................................................................................................... 5 3.5 Total Maximum Daily Loads (TMDLs) ....................................................................................... 6 3.6 Endangered and Threatened Species and Critical Habitat ............................................................ 6 3.7 Industrial Facility Discharges ....................................................................................................... 6 3.8 Non-Stormwater Discharges ......................................................................................................... 7 3.9 Target Pollutants and Sources ....................................................................................................... 8 PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION ..................................... 9 4.1 Organizational Structure ............................................................................................................... 9 4.2 Program Funding and Budget ..................................................................................................... 11 4.3 Shared Responsibility ................................................................................................................. 12 4.4 Co-Permittees .............................................................................................................................. 13 4.5 Measurable Goals for Program Implementation ......................................................................... 14 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM ......................................................... 16 PART 6: PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM ........................................... 20 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM .............................. 22 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM ................................................... 25 PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM ........................................ 27 PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS ...................... 32 List of Tables Table 1: Summary of MS4 Mapping Table 2: Summary of MS4 Receiving Waters Table 3: Summary of Approved TMDLs Table 4: Summary of Federally Listed Species/Habitat Impacted by Surface Water Quality Table 5: NPDES Stormwater Permitted Industrial Facilities Table 6: Non-Stormwater Discharges Table 7: Summary of Target Pollutants and Sources Table 8: Summary of Responsible Parties Table 9: Shared Responsibilities Table 10: Co-Permittee Contact Information Table 11: Program Implementation BMPs Table 12: Summary of Target Pollutants & Audiences Table 13: Public Education and Outreach BMPs Table 14: Public Involvement and Participation BMPs Table 15: Illicit Discharge Detection and Elimination BMPs Table 16: Qualifying Alternative Program Components for Construction Site Runoff Control Program Table 17: Construction Site Runoff Control BMPs Table 18: Qualifying Alternative Program(s) for Post-Construction Site Runoff Control Program Table 19: Summary of Existing Post-Construction Program Elements Table 20: Post Construction Site Runoff Control BMPs Table 21: Pollution Prevention and Good Housekeeping BMPs DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 1 PART 1: INTRODUCTION The purpose of this Stormwater Management Plan (SWMP) is to establish and define the means by which the Town of Lewisville will comply with its National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) Permit and the applicable provisions of the Clean Water Act to meet the federal standard of reducing pollutants in stormwater runoff to the maximum extent practicable. This SWMP identifies the specific elements and minimum measures that the Town of Lewisville will develop, implement, enforce, evaluate and report to the North Carolina Department of Environmental Quality (NCDEQ) Division of Energy, Minerals and Land Resources (DEMLR) in order to comply with the MS4 Permit number NCS000494, as issued by NCDEQ. This permit covers activities associated with the discharge of stormwater from the MS4 as owned and operated by the Town of Lewisville and located within the corporate limits of the Town of Lewisville. In preparing this SWMP, the Town of Lewisville has evaluated its MS4 and the permit requirements to develop a comprehensive 5-year SWMP that will meet the community’s needs, address local water quality issues and provide the minimum measures necessary to comply with the permit. The SWMP will be evaluated and updated annually to ensure that the elements and minimum measures it contains continue to adequately provide for permit compliance and the community’s needs. Once the SWMP is approved by NCDEQ, all provisions contained and referenced in this SWMP, along with any approved modifications of the SWMP, are incorporated by reference into the permit and become enforceable parts of the permit. Any major changes to the approved SWMP will require resubmittal, review and approval by NCDEQ, and may require a new public comment period depending on the nature of the changes. DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 2 PART 2: CERTIFICATION By my signature below I hereby certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. I am also aware that the contents of this document shall become an enforceable part of the NPDES MS4 Permit, and that both the Division and the Environmental Protection Agency have NPDES MS4 Permit compliance and enforcement authority. ☐ I am a ranking elected official. ☐ I am a principal executive officer for the permitted MS4. ☐ I am a duly authorized representative for the permitted MS4 and have attached the authorization made in writing by a principal executive officer or ranking elected official which specifies me as (check one): ☐ A specific individual having overall responsibility for stormwater matters. ☐ A specific position having overall responsibility for stormwater matters. Signature: Print Name: Title: Signed this ____ day of 20____ . DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 3 PART 3: MS4 INFORMATION 3.1 Permitted MS4 Area This SWMP applies throughout the corporate limits of the Town of Lewisville, including all regulated activities associated with the discharge of stormwater from the MS4. The map below shows the corporate limits of Lewisville as of the date of this document. DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 4 3.2 Existing MS4 Mapping The current MS4 mapping includes stormwater inflows, stormwater manholes, stormwater junction boxes, culvert drain pipes, stormwater discharges, and settling basins. The MS4 area was mapped in 2012 and is being updated in 2020 to include previously unmapped areas. Stormwater inflows include information on material, diameter/box size, depth, and ground cover. Culvert drain pipes include information on diameter, box size, material, ground cover, and length. Stormwater discharges include information on material, diameter/box size, ground cover, and receiving stream. The stormwater discharges mapped include outfalls, but specific classification of major outfalls versus all other points of discharge has not occurred. A link to the public MS4 GIS map can be found here: https://ptrc.maps.arcgis.com/apps/PublicInformation/index.html?appid=15ea83ba0e2d4157a819882c12dd7f45 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 5 Table 1: Summary of Current MS4 Mapping Percent of MS4 Area Mapped 60 % No. of Major Outfalls* Mapped 13 total *An outfall is a point where the MS4 discharges from a pipe or other conveyance (e.g. a ditch) directly into surface waters. Major outfalls are required to be mapped to meet permit requirements. A major outfall is a 36-inch diameter pipe or discharge from a drainage area > 50-acres; and for industrial zoned areas a 12-inch diameter pipe or a drainage area > 2-acres. 3.3 Receiving Waters The Town of Lewisville MS4 is located within the Yadkin-Pee Dee River Basin and discharges directly into receiving waters as listed in Table 2 below. Applicable water quality standards listed below are compiled from the following NCDEQ sources: o Waterbody Classification Map o Impaired Waters and TMDL Map o Most recent NCDEQ Final 303(d) List Table 2: Summary of MS4 Receiving Waters Receiving Water Name Stream Index / AU Number Water Quality Classification 303(d) Listed Parameter(s) of Interest Yadkin River 12-(80.7) WS-IV Fecal Coliform (recreation) Mill Creek 12-82 WS-IV None listed Shallow Ford Lakes 12-82-1 WS-IV None listed Panther Creek 12-87-(0.4) C None listed Double Creek 12-87-1-(0.4) C None listed Blacks Creek 12-87-1-1 WS-IV None listed Ellison Creek 12-88-(0.4) C None listed Ellison Creek 12-88-(0.7) WS-IV None listed Blanket Creek 12-90-(1) C None listed Reynolds Creek 12-94-9 C Ecological/biological integrity benthos 3.4 MS4 Interconnection The Town of Lewisville MS4 is not interconnected with another regulated MS4 and directly discharges to the receiving waters as listed in Table 2 above. The Town of Lewisville MS4 does interconnect with the statewide NCDOT MS4 and includes: a. The interconnection is receiving stormwater from the NCDOT MS4. The number of interconnections is unknown. b. The interconnection is discharging stormwater into the NCDOT MS4. The number of interconnections is unknown. c. The Town of Lewisville MS4 mapping does not identify interconnections with the NCDOT MS4 d. The Town of Lewisville MS4 mapping does not include NCDOT MS4 outfalls. DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 6 3.5 Total Maximum Daily Loads (TMDLs) The TMDL(s) listed in Table 3 below have been approved within the MS4 area, as determined by the map and list provided on the NCDEQ Modeling & Assessment Unit web page. The table also indicates whether the approved TMDL has a specific stormwater Waste Load Allocation (WLA) for any watershed directly receiving discharges from the permitted MS4, and whether a Water Quality Recovery Program has been implemented to address the WLA. Table 3: Summary of Approved TMDLs Water Body Name TMDL Pollutant(s) of Concern Stormwater Waste Load Allocation (Y/N) Water Quality Recovery Program (Y/N) Yadkin River Basin: Muddy Creek and the Yadkin River Turbidity N N 3.6 Endangered and Threatened Species and Critical Habitat Significant populations of threatened or endangered species and/or critical habitat are identified within the regulated MS4 urbanized area based upon a review of the Endangered and Threatened Species and Species of Concern by County for North Carolina Map and Listed species believe to or known to occur in North Carolina map as provided by the U.S. Fish and Wildlife Service, the species listed in Table 4 have the potential to occur within the regulated MS4 urbanized area. Of those species listed, Table 4 summarizes the species that may be significantly impacted by the quality of surface waters within their habitat. Table 4: Potential Federally Listed Species/Habitat Impacted by Surface Water Quality Scientific Name Common name Species Group Federal Listing Status Haliaeetus leucocephalus Bald Eagle H. leucocephalus BGPA Glyptemys muhlenbergii Bog Turtle G. muhlenbergii T (S/A) Myotis septentrionalis Northern long-eared bat M. septentrionalis T Alasmidonta varicose Brook Floater A. varicose ARS 3.7 Industrial Facility Discharges The Lewisville MS4 jurisdictional area does not include any industrial facilities which hold NPDES Industrial Stormwater Permits, as determined from the NCDEQ Maps & Permit Data web page. The Town of Lewisville has applied for No Exposure Certification for their Public Works facility. Table 5: NPDES Stormwater Permitted Industrial Facilities Permit Number Facility Name N/A DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 7 3.8 Non-Stormwater Discharges The water quality impacts of non-stormwater discharges have been evaluated by the Town of Lewisville as summarized in Table 6 below. The unpermitted non-stormwater flows listed as incidental do not significantly impact water quality. The Town of Lewisville has evaluated residential and charity car washing and street washing for possible significant water quality impacts. Street washing discharges are addressed under the Pavement Management Program in Part 10 of this SWMP. The Division has not required that other non-stormwater flows be specifically controlled by the Town of Lewisville. Wash water associated with car washing that does not contain detergents or does not discharge directly into the MS4 is considered incidental. However, these types of non-stormwater discharges that do contain detergents have been evaluated by the Town of Lewisville to determine whether they may significantly impact water quality. Table 6: Non-Stormwater Discharges Non-Stormwater Discharge Water Quality Impacts Water line and fire hydrant flushing Incidental Landscape irrigation Incidental Diverted stream flows Incidental Rising groundwater Incidental Uncontaminated groundwater infiltration Incidental Uncontaminated pumped groundwater Incidental Uncontaminated potable water sources Incidental Foundation drains Incidental Air conditioning condensate Incidental Irrigation waters Incidental Springs Incidental Water from crawl space pumps Incidental Footing drains Incidental Lawn watering Incidental Residential and charity car washing Possible Flows from riparian habitats and wetlands Incidental Dechlorinated swimming pool discharges Incidental Street wash water Possible Flows from firefighting activities Incidental DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 8 3.9 Target Pollutants and Sources In addition to those target pollutants identified above, the Town of Lewisville is not aware of other significant water quality issues within the permitted MS4 area. However, the Town has identified other pollutants it will address including litter, yard waste, pet waste, and sediment. These determinations have been made due to citizen complaints, employee investigations, citizen complaints, County inspections, and State water quality testing. Table 7 below summarizes the water quality pollutants identified throughout Part 3 of this SWMP, the likely activities/sources/targeted audiences attributed to each pollutant and identifies the associated SWMP program(s) that address each. In addition, the Town of Lewisville has evaluated schools, homeowners and businesses as target audiences that are likely to have significant stormwater impacts. Table 7: Summary of Target Pollutants and Sources Target Pollutant(s) Likely Source(s)/Target Audience(s) SWMP Program Addressing Target Pollutant(s)/Audience(s) Litter Residents, Businesses, Schools Public Education & Outreach, Public Participation Yard waste Residential, Commercial Public Education & Outreach, Public Participation, Pollution Prevention & Good Housekeeping Pet waste Residential, sewer, septic, wildlife, illicit discharge Public Education & Outreach, Illicit Discharge Detection & Elimination Sediment Commercial, Construction Public Education & Outreach, Construction site run-off control Illicit Discharge Residential, Commercial, municipal staff Public Education & Outreach, Illicit Discharge Detection & Elimination, Pollution Prevention & Good Housekeeping DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 9 PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION 4.1 Organizational Structure The Town of Lewisville Public Works Department is responsible for Public Education & Outreach, Public Involvement & Participation, Illicit Discharge Detection & Elimination, Post-Construction Stormwater Management, and Pollution Prevention/Good Housekeeping for Municipal Operations. Construction Site Runoff Control is delegated to the Winston-Salem/Forsyth County Stormwater and Erosion Control Department. The Public Works Director is the Stormwater Administrator. DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 10 Table 8: Summary of Responsible Parties SWMP Component Responsible Position Staff Name Department Stormwater Program Administration Public Works Director Ryan Moser Public Works SWMP Management Public Works Director Ryan Moser Public Works Public Education & Outreach Public Works Director Ryan Moser Public Works Public Involvement & Participation Public Works Director Ryan Moser Public Works Illicit Discharge Detection & Elimination Public Works Director Ryan Moser Public Works Construction Site Runoff Control City of Winston/Salem Erosion Control Matthew Osbourne Winston-Salem Stormwater & Erosion Control Post-Construction Stormwater Management Public Works Director Ryan Moser Public Works Pollution Prevention/Good Housekeeping for Municipal Operations Public Works Director Ryan Moser Public Works Municipal Facilities Operation & Maintenance Program Public Works Director Ryan Moser Public Works Spill Response Program Public Works Director Ryan Moser Public Works MS4 Operation & Maintenance Program Public Works Director Ryan Moser Public Works Municipal SCM Operation & Maintenance Program Public Works Director Ryan Moser Public Works Pesticide, Herbicide & Fertilizer Management Program Public Works Director Ryan Moser Public Works Vehicle & Equipment Cleaning Program Public Works Director Ryan Moser Public Works Pavement Management Program Public Works Director Ryan Moser Public Works Total Maximum Daily Load (TMDL) Requirements Public Works Director Ryan Moser Public Works DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 11 4.2 Program Funding and Budget In accordance with the issued permit, the Town of Lewisville shall maintain adequate funding and staffing to implement and manage the provisions of the SWMP and comply with the requirements of the NPDES MS4 Permit. The budget includes the permit administering and compliance fee, which is billed by the Division annually. Funding for the Stormwater Management Program comes predominantly from property taxes. The fiscal year budget below demonstrates the allocation to Stormwater activities for 2019-2020, although salaries for stormwater staff are funded through the Public Works department. The fiscal analysis completed for 2017 showed a need to increase the stormwater funding which was approved for each year since 2017. This led from a budget of $84,650 in 2017 to an increased budget of $238,907 in 2020. 2020 Stormwater Budget DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 12 4.3 Shared Responsibility The Town of Lewisville will share the responsibility to implement portions of the following minimum control measures, which are at least as stringent as the corresponding NPDES MS4 Permit requirement. The Town of Lewisville remains responsible for compliance if the other entity fails to perform the permit obligation, and may be subject to enforcement action if neither the Town of Lewisville nor the other entity fully performs the permit obligation. Table 9 below summarizes who will be implementing the component, what the component program is called, the specific SWMP BMP or permit requirement that is being met by the shared responsibility, and whether or not a legal agreement to share responsibility is in place. Table 9: Shared Responsibilities SWMP BMP or Permit Requirement Implementing Entity & Program Name Legal Agreement (Y/N) Construction Site Runoff Control Forsyth County Erosion, Sedimentation and Pollution Control Unit Y DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 13 4.4 Co-Permittees The are no other entities applying for co-permittee status under the NPDES MS4 permit number NCS000494 for the Town of Lewisville. Table 10 summarizes contact information for each co-permittee. Table 10: Co-Permittee Contact Information Co-Permittee MS4 Name Contact Person Phone & E-Mail Interlocal Agreement (Y/N) N/A DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 14 4.5 Measurable Goals for Program Implementation The Town of Lewisville will manage and report the following Best Management Practices (BMPs) for the implementation of the Stormwater Management Program. Table 11: Program Implementation BMPs Permit Ref. 2.1.1: Adequate Funding and Staffing The permittee shall maintain adequate funding and staffing to implement and manage provisions of the SWMP and meet all requirements of the permit. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 1. Adequate Funding Perform a fiscal analysis to ensure adequate program funding and fully fund the stormwater program and meet all permit requirements. 1. Complete a fiscal gap analysis 1. Once, permit year 1 1. Report gap analysis value and outcome 2. Evaluate options for additional funding mechanisms, if needed. 2. Continually, permit years 1-2 2. Report if completed or not and current status 3. Select and implement new funding mechanism, if needed. 3. Continually, permit years 3-5 3. Report what mechanism was selected and if it was implemented Permit Ref. 2.1.2 and Part 4: Annual Self-Assessment Measures to evaluate the performance and effectiveness of the SWMP program components at least annually. Results shall be used by the permittee to modify the program components as necessary to accomplish the intent of the Stormwater Program. The self-assessment reporting period is the fiscal year (July 1 – June 30). BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 2. Annual Self-Assessment Perform an annual evaluation of SWMP implementation, suitability of SWMP commitments and any proposed changes to the SWMP utilizing the NCDEQ Annual Self Assessment Template 4. Prepare, certify and submit the Annual Self- Assessment to NCDEQ prior to October 31st each year. 1. Annually, permit Years 1 – 4 1. Yes/No DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 15 Permit Ref. 1.6: Permit Renewal Application Measures to submit a permit renewal application prior to the expiration date of the NPDES MS4 permit. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 3. Permit Renewal Application Audit stormwater program implementation for compliance with the permit and approved SWMP, and utilize the results to prepare and submit a permit renewal application package. 1. Participate in an NPDES MS4 Permit Compliance Audit, as scheduled and performed by NC DEQ. 1. Once, TBD – Typically permit year 4 1. Yes/No 2. Self-audit and document any stormwater program components not audited by EPA or NCDEQ utilizing the DEQ Audit Template. Submit Self- Audit to DEMLR (required component of permit renewal application package). 2. Once, permit Year 5 2. Yes/No/Partial 3. Certify the stormwater permit renewal application (Permit renewal application form, Self-Audit, and Draft SWMP for the next 5-year permit cycle) and submit to NCDEQ at least 180 days prior to permit expiration. 3. Once, permit Year 5 3. Date of permit renewal application submittal DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 16 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM The Town of Lewisville will implement a Public Education and Outreach Program to distribute educational materials to the community or conduct equivalent outreach activities about the impacts of storm water discharges on water bodies and steps the public can take to reduce pollutants in storm water runoff. This will be implemented both locally and/or through a cooperative agreement as deemed necessary. The target audiences and identified pollutants listed in Part 3.9 of this SWMP, which will be addressed by the Public Education and Outreach Program, are summarized in Table 12 below. In addition, the Town of Lewisville is required to inform businesses and the general public of the hazards associated with illicit discharges, illegal dumping and improper disposal of waste. Table 12: Summary of Target Pollutants & Audiences Target Pollutants/Sources Target Audience(s) Litter General Public, residential and commercial property owners, school-aged children Nitrogen, phosphorus and other nutrients and yard waste Residents, HOA’s, landscaping companies, and commercial property owners Pet waste Residents, HOA’s, and the general public Illicit discharges and connections General public, businesses, municipal employees Illegal dumping General public, businesses, municipal employees Excess sediment Citizens of all ages, businesses, building contractors, municipal employees DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 17 The Town of Lewisville will manage, implement and report the following public education and outreach BMPs. Table 13: Public Education and Outreach BMPs Permit Ref. 3.2.2 and 3.2.4: Outreach to Targeted Audiences Measures to identify the specific elements and implementation of a Public Education and Outreach Program to share educational materials to the community or conduct equivalent outreach activities about the impacts of stormwater discharges on water bodies and how the public can reduce pollutants in stormwater runoff. The permittee shall provide educational information to identified target audiences on pollutants/sources identified in table 12 above, and shall document the extent of exposure of each media, event or activity, including those elements implemented locally or through a cooperative agreement. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 4. Educational Materials The Town will develop and distribute educational materials to target audiences about stormwater pollution, illegal dumping and discharge, litter and other target pollutants. Materials can be developed in-house or through a cooperative agreement. 1. Review existing materials and revise if needed 1. Once, permit year 1 1. Date reviewed; Yes/No if revisions were made 2. Develop new materials if there are gaps in information for existing materials 2. Continually, permit years 2-5 2. Yes/No if new materials were developed 3. Make existing educational materials available through the Town’s website. 3. Once, permit year 1 3. Yes/No/Partial 4. Make newly developed materials available through the Town’s website 4. Continually, permit years 2-5 4. Yes/No if new materials were developed 5. Post educational materials for construction and post construction on the town website 5. Once, permit year 1 5. Yes/No/Partial 5. Local Events The Town will distribute information about stormwater runoff and pollution to target audiences at local events 1. Distribute stormwater education materials at a public event 1. Annually, permit years 1-5 1. Event date, number of contacts provided stormwater education information 2. Distribute stormwater education materials at a library event 2. Annually, years 1-5 2. Event date, number of contacts provided stormwater education information DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 18 6. Social and Mass Media Campaigns The town will promote stormwater education through social media, mass media, and newsletter campaigns. This can be completed in-house or through a cooperative agreement. 1. Post educational materials through the Town’s Public, Educational, and Government (PEG) channel 1. Quarterly, permit years 1-5 1. Number of days materials were posted 2. Include stormwater education articles in the Town newsletter and distribute through residents’ preferred method 2. Quarterly, permit years 1-5 2. Number of articles written; Number of newsletters distributed 3. Distribute information via social and mass media regarding target pollutants, including EPA target pollutants 3. Quarterly permit years 1-5 3. Number of times information was distributed Permit Ref. 2.1.7, 3.2.3 and 3.6.5(c): Web Site Measures to provide a web site designed to convey the program’s message(s) and provide online materials including ordinances, or other regulatory mechanisms, or a list identifying the ordinances or other regulatory mechanisms, providing the legal authority necessary to implement and enforce the requirements of the permit and SWMP. The web page shall also provide developers with all relevant post-construction requirements, design standards, checklists and/or other materials. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 7. Stormwater Website Use the Town website to provide stormwater education information including ordinances, construction & post-construction requirements, IDDE, program information and FAQs. 1. Update the website to include updated SWMP and organizational chart 1. Once, permit year 1 1. Yes/No/Partial 2. Update the website with events, annual reports, and SWMP changes. 2. Annually, permit years 1-5 2. Yes/No/Partial 3. Monitor the number of visits to the Stormwater Department page 3. Annually, permit years 1-5 3. Number of visits 4. Ref. BMP 4.3-4.5 4. Ref. BMP 4.3-4.5 4. Ref. BMP 4.3-4.5 5. 5. 5. DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 19 Permit Ref. 3.2.5: Stormwater Hotline Measures for a stormwater hotline/helpline for the purpose of public education and outreach. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 8. Stormwater Hotline Maintain and promote the Stormwater Hotline so that citizens and businesses can call to report pollution concerns and violations and to request stormwater information such as educational events and litter sweeps. Calls can also be made directly to the Stormwater Department. 1. Maintain stormwater hotline 1. Continually, permit years 1-5 1. Yes/No/Status 2. Promote the stormwater hotline on the website, in the newsletter, and on other educational materials 2. Continually, permit years 1-5 2. Yes/No/Status 3. Establish a tracking mechanism to document the number and type of calls received 3. Once, permit year 1 3. Yes/No/Status 4. Have the hotline answered by a live person during business hours, and by a voicemail after-hours that is checked daily 4. Continually, permit years 1-5 4. Number of calls DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 20 PART 6: PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM This SWMP identifies the minimum elements and implementation of a Public Involvement and Participation Program that complies with applicable State, Tribal and local public notice requirements. The Town of Lewisville will manage, implement, and report the following public involvement and participation BMPs. Table 14: Public Involvement and Participation BMPs Permit Ref. 3.3.1: Public Input Mechanisms for public involvement that provide for input on stormwater issues and the stormwater program. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 9. Stormwater Hotline Maintain and promote Stormwater Hotline so that citizens and businesses can call to report pollution concerns and violations and to request stormwater information such as educational events and litter sweeps. Calls can also be made directly to the Stormwater Department. (See BMP No. 8) 1. Ref. BMP #8 1. Ref. BMP #8 1. Ref. BMP #8 10. Stormwater Website Use the Town website to provide stormwater education information including ordinances, construction & post-construction requirements, IDDE, program information and FAQs. (See BMP No. 7) 1. Ref BMP #7 1. Ref BMP #7 1. Ref BMP #7 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 21 Permit Ref. 3.3.2: Volunteer Opportunities Measures to provide volunteer opportunities designed to promote ongoing citizen participation. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 11. Annual Litter Clean-up Events Citizens and businesses will be encouraged to participate in community litter clean-up events. On-site education regarding how litter enters and pollutes local waterways will be provided. 1. Identify public areas that need clean-ups. 1. Annually, permit years 1-5 1. Number of areas identified 2. Coordinate clean-ups of public areas 2. Annually, permit years 2-5 2.Number of participants 12. Storm Drain Marking Program Encourage volunteers to become involved by providing storm drain marking kits at no cost to volunteer groups. 1. Identify priority areas that need storm drain marking 1. Once, permit year 2 1. Number of areas identified 2. Create storm drain marking kits and promote availability 2. Once, permit year 3 2. Yes/No/Status 3. Provide materials at no cost to volunteer groups 3. Continually, permit year 3-5 3. Number of kits provided; Number of storm drains marked 13. Forsyth Creek Week The Town will participate in Forsyth Creek Week so that volunteer opportunities are available to residents, schools, and businesses within the Town’s jurisdiction. 1. Participate in Forsyth Creek Week 1. Annually, permit years 1-5 1. Yes/No/Status 2. Provide volunteer activities through the Stormwater Department, Cooperative Extension or Stormwater SMART collaborative 2. Annually, permit years 2-5 2. Number of activities; Number of participants DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 22 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM The Town of Lewisville will develop, manage, implement, document, report and enforce an Illicit Discharge Detection and Elimination Program which shall, at a minimum, include the following Illicit Discharge Detection and Elimination BMPs. Table 15: Illicit Discharge Detection and Elimination BMPs Permit Ref. 3.4.1: MS4 Map Measures to develop, update and maintain a municipal storm sewer system map including stormwater conveyances, flow direction, major outfalls and waters of the United States receiving stormwater discharges. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 14. MS4 Map for curb and gutter areas Coordinate with the Piedmont Triad Regional Council to complete a storm sewer map of the curb and gutter areas within the Town’s jurisdiction. Map will not include DOT stormwater conveyances, flow direction, major outfalls, and waters of the US receiving stormwater discharges. 1. Sign contract for work 1. Once, permit year 1 1. Yes/No/Status 2. Receive digital GIS database and map. 2. Once, permit year 1 2. Yes/No/Status; Percent area mapped 15. MS4 Map for non-curb and gutter areas Continue development of MS4 map utilizing in-house staff and equipment, professional stormwater mapping firm, or the Piedmont Triad Regional Council to develop a storm sewer map of the non-curb and gutter areas within the Town’s jurisdiction. Map will not include DOT stormwater conveyances and major outfalls. 1. Review existing map and determine additional areas that need mapping 1.Once, permit year 1 1. Yes/No/Status 2. Identify specific staff or partner to continue mapping throughout the Town’s jurisdiction 2. Once, permit year 1 2. Yes/No/Status 3. Update existing MS4 map with additional map points 3. Continually, permit years 2-4 3. Yes/No/Status 4. Complete map for all areas within the Town’s jurisdiction 4. Once, permit year 5 4. Yes/No/Status 16. Update MS4 Map Continually update the existing MS4 map as new development occurs. Utilize drawings and plans submitted by engineers and developers to update the existing map. 1. Add new data points as new developments and neighborhoods are built 1. Continually, permit years 1-5 1. Percent of map updated DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 23 Table 15: Illicit Discharge Detection and Elimination BMPs Permit Ref. 3.4.2: Regulatory Mechanism Measures to provide an IDDE ordinance or other regulatory mechanism that provides legal authority to prohibit, detect, and eliminate illicit connections and discharges, illegal dumping and spills into the MS4, including enforcement procedures and actions. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 17. Maintain IDDE Ordinance The IDDE Ordinance charges the Stormwater Administrator or designee with implementing the IDDE program. The ordinance provides the legal authority to prohibit, detect, and eliminate illicit connections and discharges, illegal dumping and spills into the MS4. Update ordinance if required 1. Review ordinances and update if revision is required to maintain legal authority 1. Once, permit year 1 1. Yes/No/Status Permit Ref. 3.4.3: IDDE Plan Measures to maintain and implement a written IDDE Plan to detect and address illicit discharges, illegal dumping and any non-stormwater discharges identified as significant contributors of pollutants to the MS4. The plan shall provide standard procedures and documentation to: a) Locate priority areas likely to have illicit discharges, b) Conduct routine dry weather outfall inspections, c) Identify illicit discharges and trace sources, d) Eliminate the source(s) of an illicit discharge, and e) Evaluate and assess the IDDE Program. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 18. IDDE Plan Develop and implement a written IDDE Plan to detect and address illicit discharges, illegal dumping, and non-stormwater discharges. 1. Develop a written IDDE Plan 1. Once, permit year 1 1. Yes/No/Status 2. Locate priority areas likely to have illicit discharges 2. Once, permit year 1 2. Yes/No/Status 3. Conduct routine dry weather outfall inspections for 20% of the known outfalls 3. Annually, years 1-5 3. Yes/No/Status; number of outfalls inspected 4. Identify and eliminate illicit discharges 4. Annually, permit years 1-5 4. Number of illicit discharges detected 5. Evaluate IDDE plan and update as necessary 5.Annually, permit years 2-5 5. Yes/No/Status DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 24 Table 15: Illicit Discharge Detection and Elimination BMPs 19. Staff Training Develop an IDDE training program for staff and contractors or provide training through a cooperative agreement. 1. Identify or develop an IDDE Training program 1. Once, permit year 1 1. Yes/No/Status 2. Provide training to staff and contractors that may observe an illicit discharge 2. Annually, permit years 2-5 2. Number of attendees Permit Ref. 3.4.6: IDDE Reporting Measures for the public and staff to report illicit discharges, illegal dumping and spills. The mechanism shall be publicized to facilitate reporting and shall be managed to provide rapid response by appropriately trained personnel. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 20. Stormwater Hotline Maintain and promote Stormwater Hotline so that citizens and businesses can call to report pollution concerns and violations. (See BMP No. 8) 1. Ref. BMP #8 1. Ref. BMP #8 1. Ref. BMP #8 21. Stormwater Website Use the Town website to provide an opportunity for citizens and businesses to submit reports of pollutions concerns and violations. (See BMP No. 7) 1. Ref BMP #7 1. Ref BMP #7 1. Ref BMP #7 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 25 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM In accordance with 15A NCAC 02H .0153, the Town of Lewisville relies upon the North Carolina Sedimentation Pollution Control Act (SPCA) of 1973 as qualifying alternative program to meet a portion of the NPDES MS4 Permit requirements for construction site runoff control measures. The SPCA requirements include reducing pollutants in stormwater runoff from construction activities that result in land disturbance of greater than or equal to one acre, and includes any construction activity that is part of a larger common plan of development that would disturb one acre or more. The state SPCA Program is either delegated to a city/town, delegated to a county, or implemented by NCDEQ in non-delegated areas. Table 16: Qualifying Alternative Program Components for Construction Site Runoff Control Program Permit Reference State or Local Program Name Legal Authority Implementing Entity 3.5.1 - 3.5.4 City of Winston-Salem/Forsyth County Erosion Control Delegated SPCA Program* 15A NCAC Chapter 04, NCDEQ Approved Delegation Winston-Salem/Forsyth County Erosion Control 2 * The local delegated SPCA Program ordinance(s)/regulatory mechanism(s) can be found at: • https://www.cityofws.org/733/Erosion-Control • https://library.municode.com/nc/lewisville/codes/unified_development_ordinance?nodeId=CH CENOR_ARTIVERCO_4-18ERSECOPL • https://library.municode.com/nc/forsyth_county/codes/code_of_ordinances?nodeId=CH19SO WAREMAMA_ARTIINGE_S19-2ENRELAPESOWAREMAMA • https://library.municode.com/nc/forsyth_county/codes/code_of_ordinances?nodeId=CH19SO WAREMAMA The Town of Lewisville also implements the following BMPs to meet NPDES MS4 Permit requirements. Table 17: Construction Site Runoff Control BMPs Permit Ref. 3.5.5: Waste Management Measures to require construction site operators to control waste such as discarded building materials, concrete truck washout, chemicals, litter, and sanitary waste at the construction site that may cause adverse impact to water quality. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 22. Construction site waste management control is enforced by Forsyth County/Winston Salem through Ch 7, Article II, Sec 7.15-7.18; Chapter 19. Article I 23. Municipal Staff Training Train municipal staff who receive calls from the public on the protocols for referral and tracking of construction site runoff control complaints. 1. Train municipal staff on proper handling of construction site runoff control complaints 1. Annually, permit years 1- 5 1. Number of staff trained DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 26 Permit Ref. 3.5.6: Public Input Measures to provide and promote a means for the public to notify the appropriate authorities of observed erosion and sedimentation problems. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 24. Stormwater Hotline Maintain and promote Stormwater Hotline so that citizens and businesses can call to report pollution concerns and violations. (See BMP No. 8) 1. Ref. BMP #8 1. Ref. BMP #8 1. Ref. BMP #8 25. Stormwater Website Use the Town website to provide an opportunity for citizens and businesses to submit reports of pollutions concerns and violations. (See BMP No. 7) 1. Ref. BMP #7 1. Ref. BMP #7 1. Ref. BMP #7 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 27 PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM This SWMP identifies the minimum elements to develop, implement and enforce a program to address stormwater runoff from new development and redevelopment projects that disturb greater than or equal to one acre, including projects less than one acre that are part of a larger common plan of development or sale, that are located within the Town of Lewisville and discharge into the MS4. These elements are designed to minimize water quality impacts utilizing a combination of structural Stormwater Control Measures (SCMs) and/or non-structural BMPs appropriate for the community, and ensure adequate long- term operation and maintenance of SCMs. In accordance with 15A NCAC 02H .0153 and .1017, the Town of Lewisville implements the following State post-construction program requirements, which satisfy the NPDES Phase II MS4 post-construction site runoff control requirements as Qualifying Alternative Programs (QAPs) in the MS4 area(s) where they are implemented. Table 18: Qualifying Alternative Program(s) for Post-Construction Site Runoff Control Program State QAP Name State Requirements Local Ordinance / Regulatory Mechanism Reference Water Supply Watershed (WS-IV) 15A NCAC 2B .0620 - .0624 Chapter C, Article III, 3-3.1 The Town of Lewisville has existing requirements other than Qualifying Alternative Program(s) for implementation of the NPDES Phase II MS4 post-construction program requirements. These existing requirements are codified in local ordinance(s), and implementation is further defined in guidance, manuals and/or standard operating procedure(s) as summarized in Table 19 below. DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 28 Table 19: Summary of Existing Post-Construction Program Elements Permit Requirements for Plan Review and Approval Municipal Ordinance/Code Reference(s) and/or Document Title(s) Date Adopted 3.6.2(a) Authority Chapter C, Article III, 3-1.4 6/11/09 3.6.3(a) & 15A NCAC 02H.0153(c) Federal, State & Local Projects Chapter C, Article III, 3-3.1 6/11/09 3.6.3(b) Plan Review Chapter C, Article III, 3-2.2 6/11/09 3.6.3(c) O&M Agreement Chapter C, Article III, 3-9.2 6/11/09 3.6.3(d) O&M Plan Chapter C, Article III, 3-5.1(B) 6/11/09 3.6.3(e) Deed Restrictions/Covenants Chapter C, Article III, 3-9.5 6/11/09 3.6.3(f) Access Easements Chapter C, Article III, 3-9.5 6/11/09 Permit Requirements for Inspections and Enforcement Municipal Ordinance/Code Reference(s) and/or Document Title(s) Date Adopted 3.6.2(b) Documentation Chapter C, Article III, 3-9.3 6/11/09 3.6.2(c) Right of Entry Chapter C, Article III, 3-9.3 6/11/09 3.6.4(a) Pre-CO Inspections Chapter C, Article III, 3-2.2(A)(4) 6/11/09 3.6.4(b) Compliance with Plans Chapter C, Article III, 3-9.1(A) 6/11/09 3.6.4(c) Annual SCM Inspections Chapter C, Article III, 3-9.1(B) 6/11/09 3.6.4(d) Low Density Inspections 3.6.4(e) Qualified Professional Chapter C, Article III, 3-9.1(B) 6/11/09 Permit Requirements for Fecal Coliform Reduction Municipal Ordinance/Code Reference(s) and/or Document Title(s) Date Adopted 3.6.6(a) Pet Waste 3.6.6(b) On-Site Domestic Wastewater Treatment Chapter C, Article III, 3-5.2(I) 6/11/09 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 29 The annual reporting metrics for the post construction program are provided in Table 20: Post Construction Site Runoff Control BMPs below. Table 20: Post Construction Site Runoff Control BMPs Permit Ref. 3.6.5(a), 3.6.5(b), and 4.1.3: Minimum Post-Construction Reporting Requirements Measures to document activities over the course of the fiscal year (July 1 – June 30) including appropriate information to accurately describe progress, status, and results. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 26. Standard Reporting Implement standardized tracking, documentation, inspections and reporting mechanisms to compile appropriate data for the annual self- assessment process. Data shall be provided for each Post-Construction/ Qualifying Alternative Program being implemented as listed in Tables 18 and 19. 1. Track number of low density and high density plan reviews performed. 1. Continuously, permit years 1-5 1. Number of plan reviews performed for low density and high density 2. Track number of low density and high density plans approved. 2. Continuously, permit years 1-5 2. Number of plan approvals issued for low density and high density 3. Maintain a current inventory of low density projects and constructed SCMs including SCM type or low density acreage, location and last inspection date. 3. Continuously, permit years 1-5 3. Summary of number and type of SCMs added to the inventory; and number and acreage of low density projects constructed 4. Track number of SCM inspections performed. 4. Continuously, permit years 1-5 4. Number of SCM inspections 5. Track number of low density inspections performed. 5. Continuously, permit years 1-5 5. Number of low density projects inspected 6. Track number and type of enforcement actions taken. 6. Continuously, permit years 1-5 6. Number of enforcement actions issued Permit Ref. 2.3 and 3.6: Qualifying Alternative Program(s) Measures to develop, implement and enforce additional BMPs in order to comply with the QAP state program requirements. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 27. This permit requirement is fully met by the existing post-construction program, see references provided in Table 18 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 30 Table 20: Post Construction Site Runoff Control BMPs Permit Ref. 3.6.2: Legal Authority Measures to maintain adequate legal authorities through ordinance or other regulatory mechanism to: (a) review designs and proposals for new development and redevelopment to determine whether adequate stormwater control measures will be installed, implemented, and maintained, (b) request information such as stormwater plans, inspection reports, monitoring results, and other information deemed necessary to evaluate compliance with the Post-Construction Stormwater Management Program, and (c) enter private property for the purpose of inspecting at reasonable times any facilities, equipment, practices, or operations related to stormwater discharges to determine whether there is compliance with the Post-Construction Stormwater Management Program. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 28. This permit requirement is fully met by the existing post-construction program, see references provided in Table 19 Permit Ref. 3.6.3: Plan Review and Approval Measures to maintain plan review and approval authority, standards and procedures to: (a) Require Federal, State, and local government projects to comply with Post-Construction Program requirements throughout the entire MS4 permitted area, unless the entity is subject to its own NPDES MS4 permit or a qualifying alternative program, (b) Conduct site plan reviews of all new development and redeveloped sites that disturb greater than or equal to one acre, and sites that disturb less than one acre that are part of a larger common plan of development or sale for compliance with 15A NCAC 02H .1017 and the qualifying alternative programs that apply within your jurisdiction, (c) Ensure that each project has an Operation and Maintenance Agreement that complies with 15A NCAC 02H .1050(12), (d) Ensure that each project has an Operation and Maintenance Plan that complies with 15A NCAC 02H .1050(13), (e) Ensure that each project has recorded deed restrictions and protective covenants, that require the project to be maintained consistent with approved plans, and (f) Ensure that each SCM and associated maintenance accesses be protected in a permanent recorded easement per 15A NCAC 02H 1050 (9) and (10). BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 29. This permit requirement is fully met by the existing post-construction program, see references provided in Table 19 Permit Ref. 3.6.4: Inspections and Enforcement Measures to maintain inspection and enforcement authority, standards and procedures to: (a) Conduct post- construction inspections prior to issuing a Certificate of Occupancy or a Temporary Certificate of Occupancy. Alternatively, the project owner may provide a surety bond to guarantee compliance with the approved plan(s), (b) Ensure that the project has been constructed in accordance with the approved plan(s), (c) Ensure annual inspection of each permitted SCM to ensure compliance with the approved Operation and Maintenance Agreement, (d) Ensure inspection of low density projects at least once during the permit term, and (e) Require that inspections be conducted by a qualified professional. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 30. This permit requirement is fully met by the existing post-construction program, see references provided in Table 19 DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 31 Table 20: Post Construction Site Runoff Control BMPs Permit Ref. 3.6.6: Fecal Coliform Reduction Measures to control, to the maximum extent practicable, sources of fecal coliform per 15A NCAC 02H .1017(7). At a minimum, the program shall include: (a) A pet waste management component, which may be achieved by revising an existing litter ordinance, and (b) An on-site domestic wastewater treatment system component, if applicable, which may be coordinated with local county health department, to ensure proper operation and maintenance of such systems. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 31. Pet waste management Develop a pet waste management ordinance to reduce sources of fecal coliform. 1. Develop a new pet waste management ordinance or revise an existing litter ordinance 1. Once, permit year 1 1. Yes/No/Status 2. Display ordinance information on local Public, Educational, and Government (PEG) channel 2. Continually, permit years 2-5 2. Number of days ordinance information was posted; 3. Print ordinance information in Town newsletters 3. Annually, permit years 2-5 3. Number of newsletters distributed with ordinance information 32. On-site wastewater system This permit requirement is fully met by 15A NCAC 18A.1934, NCG.S. 130A-335(e) DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 32 PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS This SWMP provides a comprehensive pollution prevention and good housekeeping strategy for the Town of Lewisville municipal facilities and operations. Pollution prevention and good housekeeping is accomplished through the implementation of seven required programs, which collectively address the ultimate goal of preventing or reducing pollutant runoff from municipal operations such as parks and open space maintenance, fleet and building maintenance, new construction and land disturbances, and municipal storm sewer system maintenance. Pollution prevention and good housekeeping for municipal operations includes the following programs: 1. Municipal Facilities Operation and Maintenance Program 2. Spill Response Program 3. MS4 Operation and Maintenance Program 4. Municipal SCM Operation and Maintenance Program 5. Pesticide, Herbicide and Fertilizer Management Program 6. Vehicle and Equipment Maintenance Program 7. Pavement Management Program DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 33 The Town of Lewisville will manage, implement, and report the pollution prevention and good housekeeping BMPs as specified in Table 21 below for each required program. Table 21: Pollution Prevention and Good Housekeeping BMPs Permit Ref. 3.7.1: Municipal Facilities Operation and Maintenance Program Measures to manage facilities that are owned and operated by the permittee and have the potential for generating polluted stormwater runoff. The permittee shall maintain a current inventory of municipal facilities; perform facility inspections and routine maintenance; establish specific frequencies, schedules, and standard documentation; provide staff training on general stormwater awareness and implementing pollution prevention and good housekeeping practices. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 33. Inventory of Municipal Facilities Maintain an up-to-date inventory of municipal facilities with potential to generate polluted runoff. 1. Maintain a list of existing Town-owned facilities 1. Continually 1. Yes/No/Status 2. Verify which Town- owned facilities have the potential to generate polluted runoff 2. Once, permit year 1 2. Yes/No/Status 3. Verify which Town- owned facilities require a NPDES Industrial Permit and which can apply for a no exposure certification 3. Once, permit year 1 3. Yes/No/Status 4. Verify that no Town- owned facilities require a spill prevention, control, and countermeasure plan (SPCC) 4. Once, permit year 1 4. Yes/No/Status 5. Update inventory as needed when facilities are added or closed 5. Continually 5. Number of facilities added or removed 34. Municipal Facilities Operation and Maintenance Program Develop a municipal facilities O&M Program that includes how to perform facility inspections and routine maintenance; establish specific frequencies. The O&M Program shall include an inspection schedule, report documentation, and a tracking system. 1. Develop Municipal Facility O&M program 1. Permit year 2 1. Yes/No/Status 2. Develop Municipal Facility O&M standard documentation 2. Permit year 2 2. Yes/No/Status 3. Perform inspections of all facilities on the municipally owned inventory list that have the potential to generate polluted runoff, including those with a NPDES industrial permit and/or no exposure exemption 3. Annually, or per O&M specifications, permit years 2-5 3. Number of facilities inspected and number of corrective actions noted DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 34 Table 21: Pollution Prevention and Good Housekeeping BMPs 4. Perform maintenance and repairs as determined in the O&M Program, and as determined based on corrective actions noted during inspections. Document as required in the O&M Program 4. Continually, years 2-5 4. Yes/No/Status 35. Staff Training Develop and implement a municipal facilities O&M training program for staff and contractors or provide training through a cooperative agreement. 1. Identify or develop a municipal facilities O&M training program 1. Once, permit year 2 1. Yes/No/Status 2. Provide O&M training to staff and/or contractors 2. Annually, permit years 2-5 2. Number of people trained Permit Ref. 3.7.2: Spill Response Program Measures for facilities and operations that store and/or use materials that have the potential to contaminate stormwater runoff if spilled. The permittee shall maintain written spill response procedures and train staff on spill response procedures. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 36. Spill Response Plan Maintain a Spill Response Program for all municipal facilities with potential to generate polluted runoff 1. See BMP #33.2 Verify which Town- owned facilities have the potential to generate polluted runoff 1. See BMP #33.2 Once, permit year 1 1. See BMP #33.2 Yes/No/Status 2. Review Spill Response Program 2. Annually, permit years 2-5 2. Yes/No/Status 37. Staff Training Develop and implement a spill response training program for staff and contractors or provide training through a cooperative agreement. 1. Identify or develop a spill response training program 1. Once,permit year 1 1. Yes/No/Status 2. Provide spill response training to staff and contractors 2. Annually, permit years 2-5 2. Number of people trained Permit Ref. 3.7.3: MS4 Operation and Maintenance Program Measures to minimize pollutants in the stormwater collection system. The permittee shall provide operation and maintenance staff training on stormwater awareness and pollution prevention, perform MS4 inspections, maintain the collection system including catch basins and conveyances; and establish specific frequencies, schedules, and standard documentation. A B C D DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 35 Table 21: Pollution Prevention and Good Housekeeping BMPs BMP No. Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 38. MS4 Operation and Maintenance Program Develop a MS4 O&M Program that includes how to perform MS4 inspections and how to maintain the collection system. The O&M Program shall include an inspection schedule, report documentation, and tracking system. 1. Develop MS4 O&M written program 1. Once, permit year 1 1. Yes/No/Status 2. Develop MS4 O&M standard documentation 2. Once, permit year 1 2. Yes/No/Status 2. Perform inspections of 25% of the stormwater collection system 2. Annually, permit years 2-5 2. Percent inspected 3. Perform maintenance and repairs to 25% of the stormwater collection system 3. Continually, years 2- 5 3. Yes/No/Status 4. Perform maintenance and repairs based on corrective actions noted during routine inspections 4. Continually, years 2- 5 4. Yes/No/Status 5. Identify hotspots/areas that need more frequent inspections and maintenance 5. Once, permit year 2 5. Yes/No/Status 39. Staff Training Develop and implement a MS4 O&M training program for staff and contractors or provide training through a cooperative agreement. 1. Identify or develop a MS4 O&M training program 1. Once, permit year 2 1. Yes/No/Status 2. Provide O&M Training to staff and contractors 2. Annually, permit years 2-5 2. Number of people trained Permit Ref. 3.7.4: Municipal SCM Operation and Maintenance Program Measures to manage municipally-owned, operated, and/or maintained structural stormwater control measures (SCMs) that are installed for compliance with the permittee’s post-construction program. The permittee shall maintain a current inventory of SCMs, perform SCM inspections and maintenance, and shall establish specific frequencies, schedules, and documentation. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 40. Inventory of Municipal SCMs Develop and maintain an inventory of all municipally owned SCMs 1. Develop an inventory of Town-owned SCMs 1. Once, permit year 1 1. Yes/No/Status 2. Update the SCM inventory 2. Annually, permit years 2-5 2. Total number of SCMs DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 36 Table 21: Pollution Prevention and Good Housekeeping BMPs 41. SCM O&M Program Develop a SCM O&M Program that includes SCM inspection and maintenance instructions, inspection frequencies, schedules, and documentation. 1. Develop a O&M written program 1. Once, permit year 1 1. Yes/No/Status 2. Complete SCM inspections and maintenance according to the O&M Program 2. Annually, permit years 2-5 2. Number of inspections completed 3. Perform repairs and maintenance as identified during inspections 3. Annually, permit years 2-5 3. Yes/No/Partial DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 37 Permit Ref. 3.7.5: Pesticide, Herbicide and Fertilizer Management Program Measures to minimize water quality impacts from the use of landscape chemicals. The permittee shall provide routine pollution prevention and chemical use, storage and handling training, and shall ensure compliance with permits and applicator certifications. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 42. Pesticide, Herbicide, Fertilizer Management Program Currently, the Town of Lewisville contracts this work out to 3rd party licensed and certified contractors. If this changes, the Town will develop a Management Program for municipal staff that routinely use pesticides, herbicides, and/or fertilizer. 1. Develop a Management Plan, including pollution prevention and chemical use, storage and handling training, and permit and certification compliance 1. Beginning the 1st year after the Town stops contracting this work to a 3rd party 1. Report if the Town still contracts this work to a 3rd party, and if not, report if the Management Plan has been developed or not 43. Pesticide, Herbicide, Fertilizer Applicator Training Currently, the Town of Lewisville contracts this work out to 3rd party licensed and certified contractors. If this changes, the Town will develop a training program for municipal staff that routinely use pesticides, herbicides, and/or fertilizer. 1. Develop or identify a training program, including pollution prevention and chemical use, storage and handling training, and permit and certification compliance 1. Beginning the 1st year after the Town stops contracting this work to a 3rd party 1. Report if the Town still contracts this work to a 3rd party, and if not, report if the training has been developed or not 2. Provide routine staff training in pollution prevention and chemical use, storage and handling training 2. Annually, beginning the 2nd year after the Town stops contracting this work to a 3rd party 2. Report if the Town still contracts this work to a 3rd party, and if not, report if the training has been provided, the date, and number of attendees DRAFT NCS000494 SWMP Town of Lewisville July 1, 2021 Page 38 Permit Ref. 3.7.6: Vehicle and Equipment Maintenance Program Measures to prevent and minimize contamination of stormwater runoff from areas used for municipal vehicle and equipment maintenance and/or cleaning. The permittee shall ensure that municipal industrial facilities subject to NPDES industrial permitting comply with those permit requirements, provide routine pollution prevention training to staff, perform routine inspections, and establish specific frequencies, schedules, and documentation. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 44. Vehicle and Equipment Maintenance Program Currently, the Town of Lewisville contracts this work out to 3rd party vendors. If this changes, the Town will develop a Maintenance Program for municipal vehicles and equipment maintenance 1. Develop or identify a maintenance program to prevent contaminated stormwater runoff from vehicle and equipment maintenance and cleaning areas. Include inspection schedules and documentation 1. Beginning the 1st year after the Town stops contracting this work to a 3rd party 1. Report if the Town still contracts this work to a 3rd party, and if not, report if the training has been developed or not 2. Provide routine staff training in pollution prevention that includes vehicle maintenance and cleaning areas 2. Annually, beginning the 2nd year after the Town stops contracting this work to a 3rd party 2. Report if the Town still contracts this work to a 3rd party, and if not, report if the training has been provided, the date, and number of attendees Permit Ref. 3.7.7: Pavement Management Program Measures to reduce pollutants in stormwater runoff from municipally-owned streets, roads, and parking lots within the permittee’s corporate limits. The permittee shall implement measures to control litter, leaves, debris, particulate and fluid pollutants associated with vehicles, and establish specific frequencies, schedules, and documentation. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric 45. Leaf and Litter collection Provide street sweeping to control littler leaves, debris, and particulate and dispose of material in an approved landfill 1. Perform monthly street sweeping of 4 miles of curb and gutter streets in the downtown area 1. Monthly, permit years 1-5 1. Number of miles swept 2. Perform seasonal street sweeping of 28.5 miles of curb and gutter streets in residential areas 2. Annually, permit years 1-5 2. Number of miles swept 3. Identify hotspots that need more frequent sweeping and increase sweeping as needed 3. Annually, permit years 1-5 3. Number of hotspots identified; Number of miles added to the street sweeping program 46. Annual Litter Clean-up Events Provide opportunities for citizens and businesses to participate in community litter clean-up events. 1. See BMP #11.1 1. See BMP #11.1 1. See BMP #11.1 2. See BMP #11.2 2. See BMP #11.2 2. See BMP #11.2