Loading...
HomeMy WebLinkAboutNCS000584_Approved SWMP_20230309 Draft Stormwater Management Plan City of Lexington NCS000584 March 9, 2023 LEXINGTON STORMWATER Table of Contents PART 1: INTRODUCTION ...................................................................................................................I 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.....................................................................................................................4 3.4 MS4 Interconnection................................................................................................................5 3.5 Total Maximum Daily Loads(TMDLs)....................................................................................5 3.6 Endangered and Threatened Species and Critical Habitat..........................................................6 3.7 Industrial Facility Discharges...................................................................................................7 3.8 Non-Stormwater Discharges.....................................................................................................8 3.9 Target Pollutants and Sources...................................................................................................9 PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION................................. 10 4.1 Organizational Structure......................................................................................................... 10 4.2 Program Funding and Budget................................................................................................. 12 4.3 Shared Responsibility............................................................................................................. 12 4.4 Co-Permittees........................................................................................................................ 13 4.5 Measurable Goals for Program Administration....................................................................... 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.................................................27 PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM......................................29 PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS.....................35 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 Administration 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 PART 1: INTRODUCTION The purpose of this Stormwater Management Plan(SWMP) is to establish and define the means by which the City of Lexington 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 City of Lexington 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 NCS000584, as issued by NCDEQ. This permit covers activities associated with the discharge of stormwater from the MS4 as owned and operated by the City of Lexington and located within the corporate limits of the City of Lexington. In preparing this SWMP,the City of Lexington 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 NCS000584 SWMP City of Lexington March 9, 2023 Page 1 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: X4;4�" Print Zack MacKenzie Name: Title: Stormwater Administrator Si .tied this 9'day of March,2023 . DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 2 PART 3: MS4 INFORMATION 3.1 Permitted MS4 Area This SWMP applies throughout the corporate limits of the City of Lexington, including all regulated activities associated with the discharge of stormwater from the MS4. The map below shows the corporate limits of the City of Lexington as of the date of this document. City of Lexington Legend City limits Roads Highways/interstates — Surface Waters - � 9 i + 1 L z DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 3 3.2 Existing MS4 Mapping The current MS4 mapping includes features such as storm drains, stormwater pipes (with flow direction), culverts, manholes,junction structures, outfalls, channel lines, and streams. When known, attributes such as material, size, elevation, ownership, etc., are included in the features' attribute tables. The entire MS4 area has not been mapped,however, a grid system is currently being used to identify and inventory the missing areas. An MS4 GIS map is available to the public on ArcGIS Online. The direct link to this map is https://www.arcais.com/apps/webappviewer/index.html?id=elb3340c280a4efd9bb7cf7d8d53c76f There is also a stormwater database for internal use in ArcGIS. Table 1: Summary of Current MS4 Mapping Percent of MS4 Area Mapped 70 % No. of Major Outfalls*Mapped 137** 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. **For the outfalls that have been mapped, the classification as a Major Outfall has not been used. However, there are 137 known outfalls with a pipe diameter of at least 36 inches. 3.3 Receiving Waters The City of Lexington 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 DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 4 Table 2: Summary of MS4 Receiving Waters Receiving Water Name Stream Index Water Quality 303(d)Listed Parameter(s) /AU Number Classification of Interest Abbotts Creek 12-119- 6 b C Benthos ar, AL, F Abbotts Creek 12-118.5 WS-V, B PCB Fish Tissue Advisory (Advisory, FC,NC), Chlorophyll a (40 µg/1,AL,NC), Turbidity(25 NTU AL, FW acres & S North Potts Creek(Michael 12-113-3 C NA Branch Rat Spring Branch 12-113-5 C NA South Potts Creek(First Potts 12-111 C Fish Tissue Mercury(Nar, FC,NC) Creek Swearing Creek 12-113 C Fish Community ar, AL, F Tar Creek 12-113-6 C NA Yadkin River 12- 108.5 bl WS-V NA Yadkin River 12-(108.5)b2 WS-V PCB Fish Tissue Advisory (Advisory, FC,NC), Chlorophyll a 40 /l,AL,NC 3.4 MS4 Interconnection The City of Lexington MS4 is not interconnected with another regulated MS4 and directly discharges to the receiving waters as listed in Table 2 above. The MS4 does interconnect with the statewide NCDOT MS4 and includes: a. The interconnection is receiving stormwater from NCDOT MS4. The number of interconnections is unknown. Quantity:N/A b. The interconnection is discharging stormwater from NCDOT MS4. The number of interconnections is unknown. Quantity:N/A c. The City of Lexington MS4 mapping does identify interconnections with the NCDOT MS4. d. The City of Lexington MS4 mapping does include NCDOT MS4 outfalls. 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. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 5 Table 3: Summary of Approved TMDLs Water Body Name TMDL Pollutant(s) of Concern Stormwater Water Waste Quality Load Recovery Allocation Program Y/N Y/N NA NA NA NA No TMDLs have been approved for the MS4 receiving waters. The City of Lexington will continue to monitor changes in the TMDL reports and 303(d)listed parameters of interest. 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 leucoce halus Bald Eagle Vertebrate BGPA M otis se tentrionalis Northern Long-eared bat Vertebrate T Helianthus schweinitzii Schweinitz's Sunflower Vascular Plant E BGPA—Bald and Golden Eagle Protection Act E—Endangered T—Threatened DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 6 3.7 Industrial Facility Discharges The City of Lexington MS4 jurisdictional area includes the following industrial facilities which hold NPDES Industrial Stormwater Permits, as determined from the NCDEQ Maps&Permit Data web page. Table 5: NPDES Stormwater Permitted Industrial Facilities Permit Number Facility Name NCG020204 Hanson Aggregates -Lexington Quarry NCG030190 CPM Wolverine Proctor NCG050458 Westrock/MPS NCG070046 Johnson Concrete Inc. NCG081000 Is ett Distributors Inc NCG110093 Lexington Regional WWTP NCG140057 Black Concrete Incorporated NCG160205 Woodside Asphalt Plant NCG170354 Parkdale Mills Inc-Plant 3 NCG180257 MasterBrand Cabinets,Inc. NCG210434 Kepley-Frank Hardwood Company,Inc NCG210435 Valendrawers, Inc. NCGNE0083 Lexington facility—Halyard North Carolina LLC NCGNE0197 The North Carolina Moulding Company NCGNE0421 Carter Millwork,Inc. NCGNE0567 RWBT,Inc. dba Southeast Fleet Services NCGNE0588 Linwood Hospitality LLC NCGNE0645 Smurfit-Stone Container Corp-Davidson NCGNE0647 Tubular Textile Machinery,Inc NCGNE0801 Lexington Furniture Industries NCGNE0807 Gainsborou h Baths LLC NCGNE0837 Trinity Transport NCGNE0890 I Porter's Fabrications-lexin ton facility NCGNE1282 Save-A-Lot Distribution Center DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 7 3.8 Non-Stormwater Discharges The water quality impacts of non-stormwater discharges have been evaluated by the City of Lexington as summarized in Table 6 below. The unpermitted non-stormwater flows listed as incidental do not significantly impact water quality. The City of Lexington has evaluated residential and charity car washing for possible significant water quality impacts. Street cleaning is performed with a dry street sweeping process so street washing discharges are not relevant to the MS4. The Division has not required that other non-stormwater flows be specifically controlled by the City of Lexington. 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 City of Lexington to determine whether they may significantly impact water quality. They were determined to be a possible cause of water quality impacts and will be addressed through public education efforts (See BMP Nos. 8 and 9). 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 crawls ace 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 N/A Flows from firefighting activities Incidental DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 8 3.9 Target Pollutants and Sources In addition to those target pollutants identified above, the City of Lexington is not aware of other significant water quality issues within the permitted MS4 area. 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 programs that address each. In addition,the City of Lexington has evaluated schools, homeowners and businesses as target audiences that are likely to have significant stormwater impacts. Residents,businesses, schools, and municipal staff have been evaluated as likely sources and target audiences for the pollutants mentioned below because of the possibility that proper best management practices are not being followed to prevent potential pollution. Schools are also an important target audience because of the opportunity to educate students about stormwater pollution prevention. Table 7: Summary of Target Pollutants and Sources Target Pollutants Likely Sources/Target Audiences SWMP Program Addressing Target Pollutants/Audiences Litter Residents,businesses, schools Public Education& Outreach,Public Involvement&Participation Yard Waste Residents,businesses, schools Public Education& Outreach,Public Involvement&Participation Nutrients Fertilization, sewer overflows, Public Education& Outreach, Illicit failing septic systems Discharge Detection&Elimination, Construction Site Runoff Control, Post-Construction Site Runoff Control,Pollution Prevention& Good Housekeeping Sediment Construction Construction Site Runoff Control Fecal Coliform Sewer overflows, failing septic Public Education& Outreach, Illicit systems,pet and wildlife waste, Discharge Detection&Elimination illicit discharges Fats, Oils, & Grease Residents,businesses, schools Public Education& Outreach, Illicit Discharge Detection&Elimination Illicit Discharges Residents,businesses, schools, Public Education& Outreach, Illicit municipal staff Discharge Detection&Elimination, Pollution Prevention& Good Housekeeping Illegal Dumping Residents,businesses, schools, Public Education& Outreach, Illicit municipal staff Discharge Detection&Elimination, Pollution Prevention& Good Housekeeping Improper Disposal of Waste Residents,businesses, schools, Public Education& Outreach, Illicit municipal staff Discharge Detection&Elimination, Pollution Prevention& Good Housekee in General non-point sources Residents,businesses, schools, Public Education& Outreach pollution municipal staff DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 9 PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION 4.1 Organizational Structure The City of Lexington stormwater management program is implemented by Stormwater Services in the Public Services Department. Stormwater Services is responsible for Public Education& Outreach, Public Involvement&Participation, Illicit Discharge Detection&Elimination,Post-Construction Site Runoff Control, and Pollution Prevention&Good Housekeeping for Municipal Operations. Construction Site Runoff Control is delegated to the NCDEQ Winston-Salem Regional Office. LexingtonCity of Citizens Councit « City Manager Boards Assistarrt City Manager Vacant « « • Public BuildingsAdministrabir Streets Relations Superintendent Stormwater •• • Caleb Friedenbach Zack mamemie DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 10 Table 8: Summary of Responsible Parties SWMP Component Responsible Position Staff Name Department Stormwater Program Stormwater Administrator Zack MacKenzie Public Services Administration SWMP Management Stormwater Administrator Zack MacKenzie Public Services Public Education& Stormwater Zack MacKenzie, Public Services, Outreach Administrator,Director of Brittany Lance Public Relations Public Relations Public Involvement& Stormwater Zack MacKenzie, Public Services, Participation Administrator,Director of Brittany Lance Public Relations Public Relations Illicit Discharge Stormwater Administrator Zack MacKenzie Public Services Detection& Elimination Construction Site Winston-Salem Regional Jalen Hairston NCDEQ Winston-Salem Runoff Control Office Regional Office Post-Construction Stormwater Administrator Zack MacKenzie Public Services Stormwater Management Pollution Stormwater Administrator Zack MacKenzie Public Services Prevention/Good Housekeeping for Municipal Operations Municipal Facilities Public Buildings Jeremy Owen Public Buildings Operation& Superintendent Maintenance Program Spill Response Program Stormwater Zack MacKenzie, Public Services, Fire Administrator Fire Chief Paul Jarrett MS4 Operation& Stormwater Administrator Zack MacKenzie Public Services Maintenance Program Municipal SCM Stormwater Administrator Zack MacKenzie Public Services Operation& Maintenance Program Pesticide,Herbicide& Parks &Recreation Laura Duran Parks &Recreation Fertilizer Management Director Program DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 11 Vehicle&Equipment Stormwater Zack MacKenzie, Public Services, Each Cleaning Program Administrator,Equipment Equipment Department with Operators Operators Operators Pavement Management Streets Supervisor, Caleb Public Services Program Stormwater Administrator Friedenbach, Zack MacKenzie Total Maximum Daily Stormwater Administrator Zack MacKenzie Public Services Load(TMDL) Requirements 4.2 Program Funding and Budget In accordance with the issued permit,the City of Lexington 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. For Fiscal Year 2019/2020,the stormwater budget was approximately$50,000, funded in combination by the Water Resources Department and the General Fund. Beginning in February 2021, a monthly stormwater utility fee is being assessed to all properties within the city limits with an impervious surface area equal to or greater than 400 W. Single-family residential properties are assessed a fee of$3.50 on the monthly utility bill.Non-single-family residential, commercial, and industrial properties are assessed a monthly fee on the utility bill based on the amount of impervious surface area on the property. These properties are assessed$3.50 per Equivalent Residential Unit(ERU),which is equal to 2,700 ft2 in Lexington. Approximately$990,000 has been budgeted for operational costs for Fiscal Year 2021/2022. 4.3 Shared Responsibility The City of Lexington will share the responsibility to implement the following minimum control measures, which are at least as stringent as the corresponding NPDES MS4 Permit requirement. The City of Lexington remains responsible for compliance if the other entity fails to perform the permit obligation, and may be subject to enforcement action if neither the City of Lexington 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. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 12 Table 9: Shared Responsibilities SWMP BMP or Legal Permit Requirement Implementing Entity&Program Name Agreement Y/N Construction Site Runoff State Sediment and Erosion Control Program N Controls Per Section E of the MS4 permit,the city relies on the State Sediment and Erosion Control Program to comply with the Construction Site Runoff Controls minimum measure. Neither Davidson County nor the City of Lexington administers an erosion control program. However,the city promotes the state's "Stop Mud"hotline through education efforts and in response to calls to the city's pollution hotline. 4.4 Co-Permittees There are no other entities applying for co-permittee status under the NPDES MS4 permit number NCS000584 for the City of Lexington. Table 10 summarizes contact information for each co-permittee. Table 10: Co-Permittee Contact Information Co-Penmittee MS4 Contact Person Phone&E-Mail Interlocal Name Agreement Y/N N/A N/A N/A N/A DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 13 4.5 Measurable Goals for Program Administration The City of Lexington will manage and report the following Best Management Practices (BMPs) for the administration of the Stormwater Management Program. Table 11: Program Administration BMPs Permit 2.1.2 and Part 4: Annual Self-Assessment Ref. 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 eriod is the fiscal year Jul 1 —June 30 . BMP A B C D I No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 1. Program Adequacy Evaluate the adequacy of resources 1. Perform an analysis of 1. Permit Year 1 1. Adequate/Inadequate and funding allocated to Stormwater the Stormwater program Services for compliance with the to determine if funding MS4 Permit. and staffing is adequate to comply with SWMP and all six Minimum Control Measures. 2. Minimum Control Measure Implementation Develop a written program for each 1. Develop a written 1. Permit Year 1 1. Yes/No of the six Minimum Control Illicit Discharge Measures including purposes, Detection and methods,scheduling, SOPS,etc.,and Elimination Program. review the programs annually. 2. Develop a written 2. Permit Year 1 2. Yes/No Pollution Prevention& Good Housekeeping —Program. 3. Develop a written 3. Permit Year 1 3. Yes/No Post-Construction Site Runoff Control Program. 4. Develop a written 5. Permit Year 1 5. Yes/No Public Education& Outreach Program 5. Develop a written 4. Permit Year 2 4. Yes/No Construction Site Runoff Control Program. 6. Develop a written 6. Permit Year 2 6. Yes/No Public Involvement& Participation Program. 7.Review all written 7. Permit Years 2-5 7. Yes/No programs and update if needed. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 14 Table 11: Program Administration BMPs 3. Annual Self-Assessment Evaluate the performance and 1. Prepare,conduct,and 1. Annually Permit Years 1. Yes/No effectiveness of the program document an annual 1 -5 components at least annually.Results evaluation of the shall be used to modify the program program components. components as necessary to accomplish the intent of the Stormwater Program. Permit 1.6: Permit Renewal Application Ref. Measures to submit a permit renewal application no later than 180 days prior to the expiration date of the NPDES MS4 permit. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 4. Permit Renewal Application Submit a permit renewal application 1. Draft SWMP 1. Permit Year 5 1. Yes/No and Draft SWMP no later than 180 applicable to the days prior to permit expiration. proceeding 5 years following permit re- issuance. 2. Certify the stormwater 2. Permit Year 5 2. Date of permit renewal permit renewal application submittal application(Permit renewal application form and Draft SWMP for the next 5-year permit cycle) and submit to NCDEQ at least 180 days prior to permit expiration. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 15 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM The City of Lexington 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. 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 City of Lexington 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 Residents,businesses, schools, General Public Yard Waste Residents,businesses, schools Nutrients Residents,businesses, schools Sediment Construction Fecal Coliform Residents,businesses, schools Fats, Oils, & Grease Residents,businesses, schools Illicit Discharges Residents,businesses, schools, municipal staff Illegal Dumping Residents,businesses, schools, municipal staff Improper Disposal of Waste Residents,businesses, schools, municipal staff General non-point sources pollution Residents,businesses, schools, municipal staff The City of Lexington will manage, implement and report the following public education and outreach BMPs. The City of Lexington has partnered with Stormwater SMART from the Piedmont Triad Regional Council (PTRC) since its creation in 2005. The City of Lexington does not rely solely on Stormwater SMART to host educational events, however,their many resources (graphics, mailings,brochures, etc.) are utilized to share stormwater information with Lexington residents, businesses, and employees. While the partnership between Lexington and Stormwater SMART has always operated on an informal agreement, one of the Public Education&Outreach BMPs outlined in this SWMP will be to enter into a contract with Stormwater SMART. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 16 Table 13: Public Education and Outreach BMPs Permit 3.2.2 and 3.2.4: Outreach to Targeted Audiences Ref. 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 throu h a cooperative agree ent. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 5. Partnership with Stormwater SMART Continue partnership with 1.Enter into a contract 1. Permit Year 1 1. Yes/No Stormwater SMART and enter into a with Stormwater contract. SMART and outline the city's needs for educational materials to be provided by them. 2.Review the agreement 2. Permit Years 2-5 2. Yes/No with Stormwater SMART to ensure that all requirements of permit Section 3.2 are being met and maintain contract. 6. Participation in Annual City Events* Participate in annual events(e.g. 1. Prepare educational 1. Permit Year 1 1. Yes/No Barbecue Festival,Multicultural materials/presentations to Festival,etc.)hosted by the City of be shared at public Lexington as an opportunity to events. educate citizens about stormwater. 2. Participate in at least 2. Permit Years 1-5 2.Number of events two annual public events as they are scheduled. 7. School Outreach* Make contact with local schools to 1. Prepare educational 1. Permit Year 1 1. Yes/No present to classes about stormwater materials/presentations or participate in events such as career that will be tailored to fairs. varying ade levels. 2. Visit at least two city 2. Permit Years 1-5 2.Number of school schools for educational visits presentations. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 17 Table 13: Public Education and Outreach BMPs 8. Local Community Organization Outreach* Make contact with community 1. Prepare educational 1. Permit Year 1 1. Yes/No organizations,such as local clubs, materials/presentations faith groups,scout troops,etc.,to that will be tailored to present about stormwater and provide the audience of each educational materials. organization. 2. Attend at least two 2. Permit Years 1-5 2.Number of meetings community organization attended meetings for educational presentations. 9. Potential Polluter Program Develop a program identifying 1. Identify common 1. Permit Year 1 1. Yes/No potential polluters to stormwater, business types with a such as restaurants,painters, potential to cause landscapers,carwashes,etc.,and stormwater pollution. make contact with and provide 2. Select one business 2. Permit Year 2 2. Yes/No and business educational materials specific to each type to focus on and type business type. begin creating educational materials. 3.Locate and make 3. Permit Year 3 3.Number of business contact with all contacted businesses of the first selected type and evaluate their housekeeping practices and provide them with educational information. 4. Select a second 4. Permit Year 4 4. Yes/No and business business type to focus on type and begin creating educational materials. 5.Locate and make 5. Permit Year 5 5.Number of businesses contact with all contacted businesses of the second selected type and evaluate their housekeeping practices and provide them with educational information. 6. Continue to develop 6. Permit Years 1-5 6. Yes/No and list of the list of business types business types with a potential to cause stormwater pollution based on IDDE Program BMP No.28.2 DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 18 Table 13: Public Education and Outreach BMPs 10. Billing Inserts Create and mail billing inserts about 1. Create brochures to be 1. Permit Years 1-5 1. Yes/No stormwater and potential sources of inserted with utility bills, pollution,such as FOG,car washing, particularly as is relevant yard waste,household hazardous to the time of year(e.g. waste,etc. yard waste/leaves in the —fall). 2. Mail brochures to all 2. Permit Years 1-5 2.Number of inserts utility customers within mailed city limits. 11. Social Media Campaign Use the city's existing social media 1. Post information 1. Quarterly 1.Number of posts platforms to post information about quarterly to each social stormwater pollution prevention and media account using upcoming events. information developed from the above- mentioned BMPs 2. Post alerts for 2. Permit Years 1-5 2. Yes/No upcoming stormwater events. 12. Signage in City Open Spaces Create signs to be placed in city open 1. Create the signs and 1. Permit Year 3 1. Yes/No spaces to provide information about the educational topic and nearby stormwater-related concerns, locate areas appropriate for example,stream buffers or pet for each topic. waste in city parks. 2. Install 4 signs around 2. Permit Year 4 2.Number of signs city open spaces. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 19 Table 13: Public Education and Outreach BMPs Permit 2.1.7,3.2.3 and 3.6.5(c): Web Site Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 13. Stormwater Webpage Maintain and update the existing 1. Add the MS4 permit, 1. Annually 1. Yes/No stormwater webpage on the city's approved SWMP,annual website. This webpage will include reports,and a link to the information about the stormwater ordinance.Update these program,such as the permit, SWMP, as needed. annual reports,and a link to the 2. Update the webpage 2. Monthly 2. Yes/No ordinance.An event calendar, and calendar with educational materials,and educational materials and information for reporting stormwater events as they occur. concerns will also be included. 3. Maintain a section of 3. Annually 3. Yes/No the webpage about post- construction regulations, including documents such as permits, O&M Agreements,As-Built forms,etc. 4. Develop and maintain 4. Annually 4.Number of visits a mechanism to record the number of visits for the stormwater webpage. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 20 Table 13: Public Education and Outreach BMPs Permit 3.2.5: Stormwater Hotline Ref. Measures for a stormwater hotline/helpline for the purpose of public education and outreach. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 14. Stormwater Hotline Maintain the existing stormwater 1. Answer calls from 1. Continuous 1.Number of calls hotline for reporting stormwater residents with concerns and provide educational stormwater concerns. materials to citizens so they are aware 2. Provide information to 2. Annually 2.Number of staff of the hotline. the approximately 15 staff members answering phones to help them appropriately identify a concern specific to stormwater,including issues with sediment control(see BMP No. 35). 3. Include information 3. Annually 3. Yes/No about the hotline on all Stormwater educational materials. *As the situation with COVID-19 continues to be monitored, some of the implementation schedules of these BMPs may be adjusted. In an attempt to remain on schedule, events will be hosted online when possible. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 21 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 City of Lexington will manage, implement and report the following public involvement and participation BMPs. Table 14: Public Involvement and Participation BMPs Permit 3.3.1: Public Input Ref. Mechanisms for public involvement that provide for input on stormwater issues and the stormwater program. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 15. Proposed Changes to SWMP In accordance with any necessary 1. After annual 1. Annually 1. Yes/No approval from NCDEQ,major assessment and review of revisions to the SWMP or stormwater the SWMP,propose any ordinance will be presented to city major revisions to the council and include an opportunity SWMP or ordinance to for public comment. City Council. 16. City Council Input City staff will bring stormwater 1. Include annual agenda 1. Annually,per current 1.Record date of issues before the City Council to items for City Council to City of Lexington meetings. receive citizen input and factor address public concerns Council meeting stormwater into development regarding stormwater schedules decisions. and receive input from Council and the public. 17. Stormwater Hotline Maintain the existing stormwater 1. Answer calls from 1. Continuous 1.Number of calls hotline for reporting stormwater residents with concerns and provide educational stormwater concerns. material to citizens so they are aware 2. Provide information to 2. Annually 2.Number of staff of the hotline. the approximately 15 staff members answering phones to help them appropriately identify a concern specific to stormwater,including issues with sediment control(See BMP No. 35 3. Include information 3. Annually 3. Yes/No about the hotline on all stormwater education materials. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 22 Table 14: Public Involvement and Participation BMPs Permit 3.3.2: Volunteer Opportunities Ref. Measures to provide volunteer opportunities designed to promote ongoing citizen participation. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 18. Council Ward Litter Cleanups Reach out to council members and 1. Organize and attend a 1. Annually 1.Number of cleanup their constituents to organize a litter litter cleanup in all six events cleanup in their ward. Allow the wards and provide the residents to identify an area that resources needed. Use needs the most attention. the opportunity to talk about stormwater,make residents aware of the hotline,and share educational materials. 19. Adopt-a-Stream Develop and maintain an Adopt-a- 1. Develop the program, 1. Permit Year 2 1. Yes/No Stream program so volunteer groups such as information can choose a local stream segment to about the new program clean up litter. and the requirements for adopting a stream,and obtain supplies that will be needed for cleanups. 2.Begin the program by 2. Permit Year 3 2.Number of inserts sending out billing mailed inserts to all the utility customers in Lexington. Also utilize social media and promote during other educational events. 3.Enroll groups into the 3. Annually,beginning in 3.Number of groups program and attend the Permit Year 3 first cleanup event for each group to give them supplies and to share information about stormwater. 4. Maintain a list and 4. Annually,beginning in 4. Update this list and map of adopted streams. Permit Year 3 map. 5. Maintain a schedule of 5. Annually,beginning in 5.Number of cleanups the cleanups to track the Permit Year 3 number of cleanups that should be occurring and to ensure that groups are still involved with the program. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 23 Table 14: Public Involvement and Participation BMPs 20. Storm Drain Markers Provide volunteer groups with 1. Design and have made 1. Permit Year 3 1. Yes/No educational storm drain markers to the storm drain markers. place on drains in areas of their 2.Begin the program by 2. Permit Year 4 2.Number of inserts choosing. sending out information mailed about the new program in billing inserts to all the utility customers in Lexington.Also utilize social media and promote during other educational events. 3. Meet with groups to 3. Annually,beginning in 3.Number of markers hand out markers and Permit Year 4 installed supplies and share information about stormwater. 4. Maintain a count and 4. Annually,beginning in 4. Yes/No map of the markers Permit Year 4 placed. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 24 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM The City of Lexington 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 3.4.1: MS4 Map Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 21. Completion of MS4 Mapping Utility Services Administration and 1. Complete 10%of the 1. Permit Years 1-3 1. Percentage of Stormwater Services staff will remaining mapping each remaining mapping that complete the final 30%of the initial year. was completed stormwater system mapping. 22. Identify Major Outfalls Classify outfalls as Major or Minor 1. Use available 1. Permit Year 1 1. Yes/No for the outfalls that have currently attributes and current been mapped,and continue this outfall locations in GIS classification as the initial mapping is to classify all currently- completed. known outfalls as Major Outfalls or Minor Outfalls. 2. Continue the 2. Permit Years 1-3 2. Yes/No classification of outfalls as the initial mapping is —completed. 3. Update and improve 3. Annually,beginning at 3. Yes/No accuracy of outfall project start locations and classifications through the Stormwater Infrastructure Assessment(See BMP No. 24). 23. Continual Updates to MS4 Map The MS4 map will be continuously 1. Add new stormwater 1. Annually 1. Yes/No updated for completeness. infrastructure and outfalls when they are located or constructed. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 25 Table 15: Illicit Discharge Detection and Elimination BMPs 24. Stormwater Infrastructure Assessment Hire a consultant to perform an 1. Have a contract and 1. TBD—potentially 1. Yes/No assessment of the municipal scope of work agreed Permit Year 3 stormwater conveyance system, upon between the city including documenting feature and consultant. attributes, such as pipe/drain size, 2. Update Lexington GIS 2. Annually,beginning at 2. Yes/No material,depth,etc. with the information project start provided from the consultant,including locating outfalls and updating classifications. 3. Provide the consultant 3. TBD—beginning of 3. Yes/No and workers with project information about identifying illicit connections and discharges and how to report them to Stormwater Services See BMP No.29). 4. Maintain a record of 4. Continuously, 4. Yes/No IDDE concerns throughout project identified by the completion consultant and follow up in accordance with BMP No. 31. Permit 3.4.2: Regulatory Mechanism Ref. 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, in luding enforcement procedures and actions. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 25. Maintain Legal Authority Review the existing ordinance(Code 1.Review the ordinance 1. Annually 1. Yes/No of Ordinances Chapter 15)in order to and update if a revision maintain the legal authority to is required to maintain prohibit, detect,and eliminate illicit legal authority. discharges in the MS4.Update the ordinance if required. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 26 Table 15: Illicit Discharge Detection and Elimination BMPs Permit 3.4.3: IDDE Plan Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 26. Outfall Inspections Perform regular dry-weather(no rain 1. Provide training to 1. Annually 1. Yes/No in previous 72 hours)outfall staff performing outfall inspections to proactively identify inspections to know how illicit connections and discharges. to detect and trace non- stormwater discharges. 2. Split Major Outfalls 2. Permit Year 1 2. Yes/No into five equal groups for inspection with one group being inspected each year. 3. Inspect 20%of 3. Permit Years 1-5 3. Percentage of outfalls outfalls each year in dry inspected weather conditions. Document each inspection and any non- stormwater discharges identified. 27. IDDE Standard Operating Procedure Create and maintain a Standard 1. Create an SOP for the 1. Permit Year 1 1. Yes/No Operating Procedure(SOP)for IDDE IDDE program. investigation,enforcement,and 2.Review the SOP for 2. Annually 2. Yes/No follow-up. any needed revisions. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 27 Table 15: Illicit Discharge Detection and Elimination BMPs 28. IDDE Program Evaluation Evaluate the IDDE Program annually 1. Hold an evaluation 1. Annually,in 1. Yes/No to promote continuance of effective meeting with IDDE conjunction with the components and improvements in program stakeholders;to annual assessment areas that are lacking and to identify include at least the common sources of pollutants and Stormwater hotspot areas around the city. Administrator and the Public Services Director. 2.Review of IDDE 2. Annually,in 2.Record the number of reports to identify conjunction with the illicit discharges found chronic violators, annual assessment and resolved and any common sources of enforcement actions pollutants,and hotspot taken. areas. Permit 3.4.4: IDDE Tracking Ref. Measures for tracking and documenting the date(s) an illicit discharge, illicit connection or illegal dumping was observed, the results of the investigation, any follow-up of the investigation,the date the investigation was closed, the issuance of enforcement actions, and the ability to identify chronic violators. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 29. IDDE Tracking System Use a combination of the Cayenta 1. Use the Issues Console 1. Continuously, 1. Yes/No Issues Console,an asset management in the Cayenta billing beginning Permit Year 1 system(currently Asset Essentials), system to track the and IDDE spreadsheet to track receipt and response to resident and staff reports of residents' calls about stormwater concerns and stormwater concerns. investigation into these concerns. 2. Use an asset 2. Continuously, 2. Yes/No management system beginning Permit Year 1 (currently Asset Essentials)to document and map the investigation,follow-up, and any enforcement for IDDE related concerns. 3. Use a spreadsheet to 3. Continuously, 3. Yes/No document caller, beginning Permit Year 1 location,the type of stormwater concern, responsible party,and if enforcement actions were pursued. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 28 Table 15: Illicit Discharge Detection and Elimination BMPs Permit 3.4.5: Staff IDDE Training Ref. Measures to provide training for municipal staff and contractors who, as part of their normal job responsibilities,may observe an illicit discharge, illicit connection, illegal dumping or spills. Training shall include how to identify and report illicit discharges, illicit connections, illegal dumping and spills. Each staff training event shall be documented, including the agenda/materials, date, and number of staff participating. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 30. Non-Stormwater Staff Training Staff having the potential to come 1. Provide information to 1. Annually 1.Number of employees across IDDE concerns(field crews, approximately 200 field enforcement officers,etc.)will be workers on identifying given information on identifying non- non-stormwater stormwater discharges and reporting discharges. them to Stormwater Services. 31. Contractor Training Contractors having the potential to 1. Provide information 1. As needed 1. Yes/No come across IDDE concerns(e.g. on identifying non- utility workers)will be given stormwater discharges. information on identifying non- stormwater discharges and reporting them to Stormwater Services. 32. Fact Sheets Post a fact sheet to the city's internal 1. Create a fact sheet. 1. Permit Year 1 1. Yes/No website(The PIT)and hang posters in employee common areas to 2. Post the fact sheet to 2. Permit Year 1 2.Number of posters provide all staff with general The PIT and hang 12 information about identifying and posters in common areas. reporting illicit discharges, 3.Review fact sheet for 3. Annually 3. Yes/No connections,and dumping. needed changes and rehang posters,if needed. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 29 Table 15: Illicit Discharge Detection and Elimination BMPs Permit 3.4.6: IDDE Reporting Ref. 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 ersonnel. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 33. Stormwater Hotline Maintain the existing stormwater 1. Answer calls from 1. Continuous 1.Number of calls hotline for reporting stormwater residents with concerns and provide educational stormwater concerns. materials to citizens so they are aware 2. Provide information to 2. Annually 2.Number of staff of the hotline. the approximately 15 staff members answering phones to help them appropriately identify a concern specific to Stormwater,including issues with sediment control(see BMP No. 35 3. Include information 3. Annually 3. Yes/No about the hotline on all Stormwater educational materials. 34. Stormwater Webpage Maintain and update the existing 1. Add the MS4 permit, 1. Annually 1. Yes/No stormwater webpage on the city's approved SWMP,annual website. This webpage will include reports,and a link to the information about the stormwater ordinance.Update these program,such as the permit, SWMP, as needed. annual reports,and a link to the 2. Update the webpage 2. Monthly 2. Yes/No ordinance.An event calendar, and calendar with educational materials,and educational materials and information for reporting stormwater events as they occur. concerns will also be included. 3. Maintain a section of 3. Annually 3. Yes/No the webpage about post- construction regulations, including documents such as permits, O&M Agreements,As-Built forms,etc. 4. Develop and maintain 4. Annually 4.Number of visits a mechanism to record the number of visits for the stormwater webpage. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 30 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM In accordance with 15A NCAC 02H .0153,the City of Lexington relies upon the North Carolina Sedimentation Pollution Control Act(SPCA)of 1973 a qualifying alternative program to meet a portion of the NPDES MS4 Permit requirements for construction site runoff control measures. The SCPA 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 State or Local Program Name Legal Authority Implementing Reference Entity 3.5.1 - 3.5.4 State Implemented SPCA Program 15A NCAC Chapter 04 NCDE The City of Lexington also implements the following BMPs to meet NPDES MS4 Permit requirements. Table 17: Construction Site Runoff Control BMPs Permit 3.5.6: Public Input Ref. Measures to provide and promote a means for the public to notify the appropriate authorities of observed erosion and sedimentation problems. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 35. Municipal Staff Training Train municipal staff who receive 1. Train approximately 1. Annually Permit Years 1.Number of employees calls from the public on the protocols 15 employees on proper 1 -5 trained for referral and tracking of handling of construction construction site runoff control site runoff control complaints,including promoting the complaints. state's"Stop Mud"hotline. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 31 Table 17: Construction Site Runoff Control BMPs 36. Stormwater Hotline Maintain the existing stormwater 1. Answer calls from 1. Continuous 1.Number of calls hotline for reporting stormwater residents with concerns and provide educational stormwater concerns. materials to citizens so they are aware 2. Provide information to 2. Annually 2.Number of staff of the hotline. the approximately 15 staff members answering phones to help them appropriately identify a concern specific to stormwater,including issues with sediment control. 3. Include information 3. Annually 3. Yes/No about the hotline on all stormwater educational materials. Permit 3.5.5: Waste Management Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 37. Establish and Maintain Legal Authority Develop and implement an ordinance 1. Adopt ordinance. 1. Permit Year 2 1. Yes/No to require construction site operators to control waste. 2.Review the ordinance 2. Annually,after 2. Yes/No and update if a revision ordinance is adopted is required to maintain legal authority. 38. Contractor Education Communicate new waste 1. Create a fact sheet to 1. Permit Year 2,after 1. Yes/No management requirements to share at pre-construction ordinance is adopted construction site operators. meetings. 2. Add fact sheet to the 2. Permit Year 2,after 2. Yes/No website. ordinance is adopted 3. Distribute the fact 3. Continuously,after the 3. Yes/No sheet at pre-construction ordinance is adopted meetings. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 32 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 City of Lexington 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 City of Lexington 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 None N/A N/A The City of Lexington has existing requirements other than Qualifying Alternative Programs for implementation of the NPDES Phase 11 MS4 post-construction program requirements. These existing requirements are codified in local ordinances, and implementation is further defined in guidance,manuals and/or standard operating procedures as summarized in Table 19 below. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 33 Table 19: Summary of Existing Post-Construction Program Elements Permit Requirements for Municipal Ordinance/Code Reference(s) Date Adopted Plan Review and Ap roval and/or Document Title(s) 3.6.2(a)Authority City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 1.1 3.6.3(a) & 15A NCAC 02H.0153(c) Federal, State&Local Projects 3.6.3(b)Plan Review City of Lexington Code of Ordinances 11-13-2017 Chapter 15,Article I, Section 2 3.6.3(c) O&M Agreement City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 4.2 3.6.3 d O&M Plan 3.6.3(e)Deed City of Lexington Code of Ordinances— 11-13-2017 Restrictions/Covenants Chapter 15,Article I, Sections 3.4 and 3.5 3.6.3(f)Access Easements City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 4.9 Permit Requirements for Municipal Ordinance/Code Reference(s) Date Adopted Inspections and Enforcement and/or Document Title(s) 3.6.2(b)Documentation City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 4.7 3.6.2(c)Right of Entry City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 4.2 3.6.4(a)Pre-CO Inspections City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 2.3 3.6.4(b)Compliance with Plans City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Sections 3.4 and 3.5 3.6.4(c)Annual SCM Inspections City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 4.1.2 3.6.4 d Low Density Inspections 3.6.4(e) Qualified Professional City of Lexington Code of Ordinances— 11-13-2017 Chapter 15,Article I, Section 4.1.2 Permit Requirements for Municipal Ordinance/Code Reference(s) Date Adopted Fecal Coliform Reduction and/or Document Title(s) 3.6.6(a)Pet Waste City of Lexington Code of Ordinances— 9-12-2011 Chapter 8,Article II,Division 4, Section 8- 63 3.6.6(b) On-Site Domestic Davidson County Health Department 1977 General Wastewater Treatment Application,Evaluation, and Permitting Statute Procedures for Wastewater Systems - enforcing 15A NCAC 18A .1900 The annual reporting metrics for the post construction program are provided in Table 20: Post Construction Site Runoff Control BMPs below. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 34 Table 20: Post Construction Site Runoff Control BMPs Permit 3.6.5(a),3.6.5(b),and 4.1.3: Minimum Post-Construction Reporting Requirements Ref. Measures to document activities over the course of the fiscal year(July 1 —June 30) including appropriate information to accurately describe rogress, status, and results. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 39. Standard Reporting Implement standardized tracking, 1. Track number of low- 1. Continual 4.Number of plan documentation,inspections and density and high-density reviews performed for reporting mechanisms to compile plan reviews performed. low-density and high- appropriate data for the annual self- density assessment process. Data shall be 2. Track number of low 2. Continual 2.Number of plan provided for each Post-Construction/ density and high density approvals issued for low- Qualifying Alternative Program plans approved. density and high-density being implemented as listed in Tables 3. Maintain a current 3. Continual 3. Summary of number 18 and 19. inventory of low-density and type of SCMs added projects and constructed to the inventory;and SCMs including SCM number and acreage of type or low density low-density projects acreage,location and last constructed —inspection date. 4. Track number of SCM 4. Continual 4.Number of SCM —inspections performed. inspections 5. Track number of low- 5. Continual 5.Number of low- density inspections density projects performed. inspected 6. Track number and 6. Continual 6.Number of type of enforcement enforcement actions actions taken. issued Permit 3.6.2: Legal Authority Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric This permit requirement is fully met by the existing post-construction program.See references provided in Table 19. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 35 Table 20: Post Construction Site Runoff Control BMPs Permit 3.6.3: Plan Review and Approval Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 40. Revisions to Code of Ordinances Revise existing ordinance to 1.Revise ordinance to 1. Permit Year 2 1. Yes/No specifically require compliance by require Federal, State, Federal, State,and Local government and Local government projects. projects to comply with post-construction requirements unless subject to its own NPDES MS4 permit or qualifying alternative program. 41. Operation&Maintenance Plan Add an ordinance to the city code 1.Establish legal 1. Permit Year 2 1. Yes/No requiring each Stormwater Control authority through Measure to have an Operation& additional ordinance. Maintenance Plan that complies with 15A NCAC 02H.1050 13 . DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 36 Table 20: Post Construction Site Runoff Control BMPs Permit 3.6.4: Inspections and Enforcement Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 42. Inspection Procedures for Structural SCMs Create an inventory of SCMs and 1. Create an inventory of 1. Permit Year 1 1. Yes/No procedures for inspections and structural SCMs, documentation. including mapping and unique identifiers for each SCM. 2. Create an SOP for 2. Permit Year 1 2. Yes/No inspection and documentation of SCMs during construction and —post-construction. 3.Begin procedures 3. Permit Year 1 3.Number of inspections created for post- construction inspections. 43. Inspection of Low-Density Projects Establish the legal authority for 1.Establish legal 1.Permit Year 2 1. Yes/No inspection of low-density projects at authority through code least once during the permit term,and revision. carry out the inspections. 2. Conduct inspections of 2. Continual 2.Number of low- 20%of low-density density projects projects each year. I inspected DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 37 Table 20: Post Construction Site Runoff Control BMPs Permit 3.6.6: Fecal Coliform Reduction Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 44. Pet Waste Stations Educate residents about disposing of 1. Create an inventory, 1. Permit Year 1 1. Yes/No pet waste,and inventory pet waste including mapping,of stations currently around the city and pet waste stations identify spots in public areas where currently around the city. additional stations could help reduce 2.Educate residents 2. Permit Year 2 2. Yes/No pet waste pollution. about the importance of disposing of pet waste through the implementation of BMP Nos. 10-12. 3. After the inventory is 3. Permit Year 2 3. Yes/No completed,identify spots in public areas that would be benefitted by more stations,including relying on input from residents. 4. Install pet waste 4. Permit Year 3 4.Number of pet waste stations in the areas stations identified. 5. Collect the waste 5. Continuously, 5.Number of bags disposed of at the beginning Permit Year 3 purchased stations on the regular public trash pickup schedule and record how many bags are purchased each year. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 38 PART 10:POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS This SWMP provides a comprehensive pollution prevention and good housekeeping strategy for the City of Lexington 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 The City of Lexington will manage, implement and report the pollution prevention and good housekeeping BMPs as specified in Table 21 below for each required program. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 39 Table 21: Pollution Prevention and Good Housekeeping BMPs Permit 3.7.1: Municipal Facilities Operation and Maintenance Program Ref. 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 imp ementing pollution prevention and good housekeeping practices. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 45. Inventory of Municipal Facilities Develop and maintain an up-to-date 1. Compile a list of 1. Permit Year 1 1. Yes/No inventory of all municipal facilities. existing city-owned facilities. 2. Perform initial 2. Permit Year 2 2. Yes/No inspections of all city facilities. Classify facilities as having high or low potential for stormwater pollution. 3. Determine if any 3. Permit Year 2 3. Yes/No facilities require an SPCC plan. 4. Determine if any 4. Permit Year 2 4. Yes/No facilities currently have or require an NPDES industrial permit(see BMP No.47). 5. Update inventory as 5. Continual 5. Yes/No needed when facilities are added or closed. 46. Facility Inspections Inspect city facilities to confirm good 1. Develop an SOP for 1. Permit Year 1 1. Yes/No housekeeping practices are being city facility inspections, followed,including vehicle and including an inspection equipment cleaning(see BMP No. schedule,inspection 56). report documentation, and tracking system. 2. Implement annual 2. Conduct annual and 2.Number of inspections facility inspections for once-per-permit-term high stormwater inspections,beginning in pollution potential Permit Year 2. facilities and once-per- permit term inspections for low potential facilities. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 40 Table 21: Pollution Prevention and Good Housekeeping BMPs 47. NPDES Industrial Permit Compliance Ensure that NPDES industrial permit 1. Develop an industrial 1. Permit Year 1 1. Yes/No compliance occurs at all applicable facility inspection form. municipally owned sites. 2.Review municipal 2. Permit Year 2 1. Yes/No facilities inventory and inspections to determine which facilities currently have or require an NPDES permit. 3. Apply for new permits 2. Annually,beginning 2. Yes/No and confirm that existing Permit Year 2 ermits are not expired. 4. Perform facility 4. Annually,Permit Year 4.Number of inspections inspections for 2 for current industrial compliance with permits. permits or a year after new permits are acquired. 5. Create an NPDES 5. Permit Year 2 5. Yes/No industrial permit tracking mechanism to maintain the list of municipally owned permitted facilities and inspection dates. 48. Staff Training Develop a staff training program for 1. Develop an 1. Permit Year 1 1. Yes/No general stormwater pollution appropriate training prevention for the municipal facilities program. being inspected. 2. Provide training for all 2. Annually,beginning in 2.Number of trainings employees. Permit Year 2 and employees present DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 41 Table 21: Pollution Prevention and Good Housekeeping BMPs Permit 3.7.2: Spill Response Program Ref. 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 rocedures. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 49. Inventory of Facilities with Spill Potential Maintain a list of city facilities and 1. Update list of city 1.When necessitated by 1. Yes/No operations storing materials that facilities and operations changes in facilities or would be a pollutant if spilled and with spill potential when operations introduced to the stormwater system facilities or operations and classify by hazard and quantity are changed. see BMP No.45.2 50. Spill Response Procedures Develop written spill response 1. Develop general spill 1. Permit Year 1 1. Yes/No procedures and continue training of response procedures. appropriate staff. 2. Develop specific spill 2. Permit Year 1 2. Yes/No response procedures for city facilities and operations with potential to produce high hazard —spills. 3. Update as facilities 3.When necessitated by 3. Yes/No and operations are changes in facilities or revised. operations 4. Coordinate with 4. Permit Year 1 4.Number of employees Lexington Fire trained Department to have staff trained in spill response rocedures. 5. Train staff at facilities 6. Annually 6.Number of employees with potential for high trained hazard spills in first response actions and reporting rocedures. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 42 Table 21: Pollution Prevention and Good Housekeeping BMPs Permit 3.7.3: MS4 Operation and Maintenance Program Ref. 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. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 51. Staff Training Develop a staff training program for 1. Develop and 1. Permit Year 1 1. Yes/No general stormwater pollution appropriate training prevention for Public Services program. employees. 2. Provide training for all 2. Annually,beginning in 2.Number of trainings employees. Permit Year 2 and employees present 52. MS4 Inspections and Maintenance Develop a proactive plan for MS4 1. Develop an SOP that 1. Permit Year 1 1. Yes/No maintenance,requiring regular includes proactive inspections and maintenance. inspection schedules, standard documentation, staff responsibilities,and proper maintenance training. 2. Develop an inspection 2. Permit Year 1 2. Yes/No and maintenance tracking system to be used in accordance with the SOP. 3. Verify,document,and 3. Continuous 3.Number of inspections prioritize maintenance and maintenance activities identified by activities inspections or citizen reports. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 43 Table 21: Pollution Prevention and Good Housekeeping BMPs Permit 3.7.4: Municipal SCM Operation and Maintenance Program Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 53. Inventory of Municipal Structural SCMs Develop an inventory of municipal 1. Develop the Municipal 1. Year 1 1. Yes/No structural SCMs to include location, SCM inventory. SCM type,design plans,O&M plans, and method for documenting in ectionS. 54. SCM Inspection and Maintenance Develop the inspection and 1. Develop the inspection 1. Year 1 1. Yes/No/NA maintenance program and perform and maintenance and document inspections and program and begin maintenance activities for municipal inspections. structural SCMs. Permit 3.7.5: Pesticide,Herbicide and Fertilizer Management Program Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 55. Pesticide,Herbicide,Fertilizer Applicator Training Train city staff who apply landscape 1. Maintain Right-of- 1. Continuous 1. Yes/No chemicals in order to minimize water Way Pest Control,Public quality impacts from pesticides, Health Control,and herbicides,and fertilizers. Ornamental&Turf Pest Control applicator certifications for —appropriate ersonnel. 2. Develop a pollution 2. Permit Year 2 2. Yes/No prevention and chemical use,storage,and handling training program. 3. Provide staff training 3. Annually,beginning 3.Number of employees in pollution prevention Permit Year 2 trained and chemical use, storage,and handling. DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 44 Table 21: Pollution Prevention and Good Housekeeping BMPs Permit 3.7.6: Vehicle and Equipment Maintenance Program Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 56. Vehicle and Equipment Cleaning and Maintenance Facility Inspection Conduct routine inspections as part of 1. Develop an inspection 1. Permit Year 1 1. Yes/No general facility inspections(see BMP checklist. No. 48)to ensure that vehicle and 2. Perform inspections 2. Annually,beginning in 2. Yes/No equipment facilities are following using inspection Permit Year 2 proper procedures to minimize water checklist and notify quality impacts from vehicle and facility manager of any equipment cleaning and maintenance. corrective actions required. 3. Perform re-inspections 3. As required by 3. Yes/No of any facility that corrective actions issued required corrective action. 57. Staff Training Provide general stormwater 1. Provide training for all 1. Annually,beginning 1.Number of trainings awareness training and pollution employees. Permit Year 2 and employees present prevention training to employees working in vehicle maintenance and cleaning areas(see BMP No.48) DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 45 Table 21: Pollution Prevention and Good Housekeeping BMPs Permit 3.7.7: Pavement Management Program Ref. 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 A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 58. Street Sweeping Develop a street sweeping program to 1. Develop an SOP, 1. Permit Year 1 1. Yes/No implement a schedule in order to including a schedule and reduce pollutants from city-owned plan to document streets and—maintained streets. swept,and identify areas that need to be swept more frequently. 2. Implement the SOP, 2. Annually,beginning in 2. Total miles of streets including the frequency Permit Year 2 swept and the volume of schedule. debris collected 59. Leaf Collection Develop a leaf collection program to 1. Develop an SOP, 1. Permit Year 2 1. Have a leaf collection implement a schedule in order to including a schedule and SOP. reduce pollution and clogging of plan to document the storm drains,particularly focusing on areas addressed. efforts in the fall and winter("leaf 2. Implement SOP and 2. Annually,beginning in 2.Record the volume of season"). documentation. Permit Year 3 leaves collected. 60. Vehicle Spill Cleanup Maintain vehicle spill cleanup 1. Maintain spill 1. Continual 1. Yes/No response procedures to prevent response procedures(see pollutants from vehicular accidents BMP No. 50). from entering the MS4. 2. Provide public 2. Permit Year 1 2. Yes/No education about stopping vehicle leaks(See BMP Nos. 10 and 11). DRAFT NCS000584 SWMP City of Lexington March 9, 2023 Page 46