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HomeMy WebLinkAboutNCS000446_Apex Draft SWMP_20210525 Draft Stormwater Management Plan Town of Apex NCS000446 June 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 ..................................................................................................................... 4 3.4 MS4 Interconnection ................................................................................................................ 5 3.5 Total Maximum Daily Loads (TMDLs) .................................................................................... 6 3.6 Endangered and Threatened Species and Critical Habitat .......................................................... 7 3.7 Industrial Facility Discharges ................................................................................................... 7 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 ............................................................................................................. 11 4.4 Co-Permittees ........................................................................................................................ 12 4.5 Measurable Goals for Program Administration ....................................................................... 12 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM ....................................................... 14 PART 6: PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM ......................................... 16 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM ............................ 17 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM ................................................. 20 PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM ...................................... 21 PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS ..................... 25 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 (Deleted per template) Table 20: Post Construction Site Runoff Control BMPs Table 21: Pollution Prevention and Good Housekeeping BMPs DRAFT NCS000446 SWMP Town of Apex August 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 Apex 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 Apex 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 NCS000446, 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 Apex and located within the corporate limits of the Town of Apex. In preparing this SWMP, the Town of Apex 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 NCS000446 SWMP Town of Apex August 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: Town Manager Signed this ____ day of 2021. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 3 PART 3: MS4 INFORMATION 3.1 Permitted MS4 Area This SWMP applies throughout the corporate limits of the Town of Apex, including all regulated activities associated with the discharge of stormwater from the MS4. The map below shows the corporate limits of Town of Apex as of the date of this document. The most recent version of the full map can be found online here: http://www.apexnc.org/DocumentCenter/View/480/Corporate-Limits-and-Extraterritorial- Jurisdiction-Map-PDF?bidId DRAFT NCS000446 SWMP Town of Apex August 2021 Page 4 3.2 Existing MS4 Mapping The current MS4 mapping includes stormwater piping (size and material), junction boxes, invert elevations, and outfalls. Stormwater from streets, rooftops, parking lots, and other impervious surfaces is generally collected din curb inlets and conveyed by underground pipe systems. In some cases, stormwater runoff flows either by grass-lined swale, ditch or sheet flows to the nearest receiving stream. In accordance with riparian buffer regulations, stormwater discharges must attain diffuse flow prior to entry into the buffer. MS4 Map: https://gisportal.apexnc.org/publicwa/apps/webappviewer/index.html?id=0ad99d646b4548f7b9b0f49ebd2 c1227 Table 1: Summary of Current MS4 Mapping Percent of MS4 Area Mapped 99.9 % No. of Major Outfalls* Mapped 138 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. Major Outfalls Map: http://www.apexnc.org/DocumentCenter/View/33633/MS4-major-outfalls-map-2020_color?bidId 3.3 Receiving Waters The Town of Apex MS4 is located within both the Neuse River and Cape Fear River Basins and discharges directly into receiving waters as listed in Table 2. 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 NCS000446 SWMP Town of Apex August 2021 Page 5 Table 2: Summary of MS4 Receiving Waters Receiving Water Name Stream Index / AU Number Water Quality Classification 303(d) Listed Parameter(s) of Interest CAPE FEAR RIVER BASIN White Oak Creek 16-41-6-(0.3) WS-V1; NSW Nutrients 2 White Oak Creek 16-41-6-(0.7) WS-IV; NSW Nutrients 2 White Oak Creek 18-7-6 C N/A Little White Oak Creek 18-7-7 C N/A Clark Branch 16-41-6-3 WS-IV; NSW Nutrients 2 Reedy Branch 16-41-10-1 WS-IV; NSW Nutrients 2 Beaver Creek 16-41-10- (0.3) WS-V1; NSW Nutrients 2 Beaver Creek 16-41-10- (0.5) WS-IV; NSW Nutrients 2 Little Beaver Creek 16-41-11-(1) WS-IV; NSW Nutrients 2 Big Branch 18-7-6-1 C N/A Big Branch 18-7-8 C N/A Little Branch 18-7-6-1-1 C N/A NEUSE RIVER BASIN Crabtree Creek 27-33-(1) C; NSW Poor Bioclassification; Nutrients Williams Creek 27-43-2 WS-III; NSW Poor Bioclassification; Nutrients Swift Creek 27-43-(1) WS-III; NSW Poor Bioclassification; Nutrients Middle Creek 27-43-15-(1) C; NSW Fair Bioclassification; Nutrients 3.4 MS4 Interconnection The Town of Apex 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 the NCDOT MS4. b. The interconnection is discharging stormwater into the NCDOT MS4. The number of interconnections is unknown. Quantity: N/A. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 6 c. Where possible, the Town of Apex MS4 mapping does identify interconnections with the NCDOT MS4. d. Where possible, the Town of Apex 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. 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) Neuse River Estuary Total Nitrogen N N Swift / Williams Creek Biological Integrity Y Y Jordan Lake Total Phosphorous, Total Nitrogen N N The Swift Creek watershed in the northeast section of Apex has been identified with a WLA. Focused stormwater pollution prevention efforts have been implemented Town-wide to help address this. The Town of Apex website has a page devoted to homeowner education and specifically how to slow the flow of runoff and promote healthy streambanks. This includes instructions on rain garden installation, reduced fertilizer use, downspout disconnection, and an NC Cooperative Extension publication on Small-Scale Solutions for Repairing Eroded Streambanks. The Town has contracted with a company for street sweeping services. Downtown Apex is swept every two weeks, Town parking lots are swept monthly, main thoroughfares (including NCDOT streets) are also swept monthly, and all residential neighborhoods are swept on a quarterly basis. Any residential areas within the Swift Creek watershed are swept on a monthly basis instead of quarterly as part of the Water Quality Recovery Program. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 7 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: Summary of Federally Listed Species/Habitat Impacted by Surface Water Quality Scientific Name Common name Species Group Federal Listing Status Alasmidonta heterodon Dwarf wedgemussel Clam Endangered Noturus furiosus Carolina madtom Fish Proposed Endangered Notropis mekistocholas Cape Fear shiner Fish Endangered Elliptio lanceolata Yellow lance Clam Threatened 3.7 Industrial Facility Discharges The Town of Apex 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 NCG110000 Middle Creek Wastewater Treatment Plant 3.8 Non-Stormwater Discharges The water quality impacts of non-stormwater discharges have been evaluated by the Town of Apex as summarized in Table 6 below. The unpermitted non-stormwater flows listed as incidental do not significantly impact water quality. The Town of Apex 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 Apex. Wash water associated with car washing that does not contain detergents or does not discharge directly into the MS4 is considered incidental. Non-commercial car washing is exempt from the Town’s IDDE ordinance and is considered to be any occasional automotive washing performed by individuals or groups without charging any fee or in exchange for a charitable donation. This shall include but is not limited to car washes performed by local church groups, school groups, athletic teams, youth organizations, and individuals at their place of residence. However, these types of non-stormwater discharges that do contain DRAFT NCS000446 SWMP Town of Apex August 2021 Page 8 detergents have been evaluated by the Town of Apex 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 Exempt per ordinance Flows from riparian habitats and wetlands Incidental Dechlorinated swimming pool discharges Incidental Street wash water N/A Flows from firefighting activities Incidental 3.9 Target Pollutants and Sources In addition to those target pollutants identified above, the Town of Apex 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 program(s) that address each. In addition, the Town of Apex 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) N/A N/A N/A DRAFT NCS000446 SWMP Town of Apex August 2021 Page 9 PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION 4.1 Organizational Structure The Phase II permit is administered by the Environmental Engineering Manager within the Water Resources Department. The Town’s Environmental Field Services Supervisor manages the day-to-day operations related to most MCMs. The Public Works & Transportation Department contributes to MCM #6. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 10 Table 8: Summary of Responsible Parties SWMP Component Responsible Position Staff Name Department Stormwater Program Administration Environmental Engineering Manager Jessica Bolin Water Resources SWMP Management Environmental Engineering Manager Jessica Bolin Water Resources Public Education & Outreach Environmental Field Services Supervisor James Misciagno Water Resources Public Involvement & Participation Environmental Field Services Supervisor James Misciagno Water Resources Illicit Discharge Detection & Elimination Environmental Field Services Supervisor James Misciagno Water Resources Construction Site Runoff Control Environmental Field Services Supervisor James Misciagno Water Resources Post-Construction Stormwater Management Environmental Engineering Manager James Misciagno Water Resources Pollution Prevention/Good Housekeeping for Municipal Operations Environmental Field Services Supervisor James Misciagno Water Resources Municipal Facilities Operation & Maintenance Program Environmental Field Services Supervisor James Misciagno Water Resources Spill Response Program Environmental Field Services Supervisor James Misciagno Water Resources MS4 Operation & Maintenance Program Public Works & Transportation Director Jose Martinez Public Works & Transportation Municipal SCM Operation & Maintenance Program Environmental Engineering Manager Jessica Bolin Water Resources Pesticide, Herbicide & Fertilizer Management Program Contracted service N/A N/A DRAFT NCS000446 SWMP Town of Apex August 2021 Page 11 Vehicle & Equipment Cleaning Program Public Works & Transportation Director Jose Martinez Public Works & Transportation Pavement Management Program Public Works & Transportation Director Jose Martinez Public Works & Transportation Total Maximum Daily Load (TMDL) Requirements Environmental Engineering Manager Jessica Bolin Water Resources 4.2 Program Funding and Budget In accordance with the issued permit, the Town of Apex 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. The Town of Apex stormwater program is currently funded through the Town’s general fund and the annual total is approximately $2.2 million. This budget is reviewed every year. 4.3 Shared Responsibility The Town of Apex 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 Town of Apex 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 Apex 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) Table 13 – BMP #3 TJCOG – Clean Water Education Partnership (CWEP) Y DRAFT NCS000446 SWMP Town of Apex August 2021 Page 12 4.4 Co-Permittees There are no other entities applying for co-permittee status under the NPDES MS4 permit number NCS000446 for the Town of Apex. Table 10: Co-Permittee Contact Information Co-Permittee MS4 Name Contact Person Phone & E-Mail Interlocal Agreement (Y/N) N/A 4.5 Measurable Goals for Program Administration The Town of Apex will manage and report the following Best Management Practices (BMPs) for the administration of the Stormwater Management Program. Table 11: Program Administration BMPs 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 #1 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. 1. Prepare, certify and submit the Annual Self- Assessment to NCDEQ prior to August 31 each year. 1. Annually (Permit Years 1-5) 1. Yes/No Permit Ref. 1.6: Permit Renewal Application Measures to submit a permit renewal application no later than 180 days 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 #2 Permit Renewal Application Audit stormwater program implementation for compliance with the permit and approved SWMP, and utilize the results to prepare and 1. Participate in an NPDES MS4 Permit Compliance Audit, as scheduled and performed by EPA or NCDEQ. 1. TBD – Typically Permit Year 4 1. Yes/No DRAFT NCS000446 SWMP Town of Apex August 2021 Page 13 Table 11: Program Administration BMPs submit a permit renewal application package. 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. 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. Permit Year 5 3. Date of permit renewal application submittal DRAFT NCS000446 SWMP Town of Apex August 2021 Page 14 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM The Town of Apex 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 Town of Apex 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 Illicit Discharges General Public, Businesses, Municipal Employees Illegal Dumping General Public, Businesses, Municipal Employees Improper Disposal of Waste General Public, Businesses, Municipal Employees The Town of Apex 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 #3 Clean Water Education Partnership (CWEP) Maintain membership in CWEP where regional local governments can pool their resources to achieve direct public education and mass media marketing regarding stormwater quality. 1. Maintain a current contract with CWEP and renew as necessary. 1. Permit Years 1-5 1. Yes/No #4 Public Events Attend public events to distribute educational brochures, provide hands-on activities, and answer community questions on stormwater quality. 1. Host a booth at the Town’s annual Peak Fest event. 1. Permit Years 1-5 1. Quantity of educational materials distributed. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 15 Table 13: Public Education and Outreach BMPs 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 #5 Informational Website Keep relevant stormwater information on the Town’s official website 1. Maintain an updated stormwater information page on the Town of Apex official website. Post brochures and provide information on water quality, stormwater pollutants and ways to minimize them, municipal stormwater projects and activities. 1. Permit Years 1-5 1. Yes/No 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 #6 Stormwater Hotline Advertise a single phone number and triage all stormwater related calls received 1. Promote and maintain a phone number for stormwater concerns and public education and outreach. 1. Permit Years 1-5 1. Yes/No DRAFT NCS000446 SWMP Town of Apex August 2021 Page 16 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 Apex 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 #7 Online Public Comments Stormwater questions or concerns can be entered through an online submission form on the Town’s official website and directed to appropriate staff. 1. Continue to promote and maintain an online submission form to direct stormwater questions and concerns to Town staff for response. 1. Permit Years 1-5 1. Yes/No 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 #8 Storm Drain Marking Program Continue to involve school groups and other volunteers in storm drain marking events to raise awareness and promote ownership in the stormwater program and to protect the water quality of the receiving streams. 1. Promote volunteer opportunities on the Town’s website. Schedule events, manage volunteers, and provide supplies. 1. Permit Years 1-5 1. Number of events completed. #9 Stream Clean-Up Events Continue to advertise and manage community groups to clean up trash and debris along waterways. 1. Promote volunteer opportunities on the Town’s official website. Schedule events, manage volunteers, and provide supplies. 1. Permit Years 1-5 1. Number of events completed. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 17 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM The Town of Apex 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 #10 MS4 Map Maintain a storm sewer system map of major outfalls. 1. Maintain a current map showing major outfalls and receiving streams. 1. Permit Years 1-5 1. Yes/No/Partial 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 #11 IDDE Ordinance Maintain adequate legal authorities. 1. Maintain an IDDE ordinance that provides legal authority to prohibit illicit connections and discharges including appropriate enforcement actions. 1. Permit Years 1-5 1. Yes/No 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. A B C D DRAFT NCS000446 SWMP Town of Apex August 2021 Page 18 Table 15: Illicit Discharge Detection and Elimination BMPs BMP No. Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric #12 IDDE Standard Operating Procedures Maintain and implement a written IDDE plan 1. Maintain an updated IDDE plan to detect and address illicit discharges 1. Permit Years 1-5 1. Yes/No/Partial #13 Dry Weather Flow Inspections Maintain dry weather flow inspection program. 1. Maintain a program for conducting dry weather flow field observations in accordance with written procedures. 1. Permit Years 1-5 1. Number of dry weather flow inspections completed. Permit Ref. 3.4.4: IDDE Tracking 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 No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric #14 IDDE Incident Tracking Document and track all reported IDDE incidents. 1. For each IDDE case, document 1) the date the illicit discharge was observed; 2) the results of the investigation; 3) any follow-up of the investigation; and 4) the date the investigation was closed. 1. Permit Years 1-5 1. Number of enforcement actions issued. Permit Ref. 3.4.5: Staff IDDE Training 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 No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric #15 Staff Training DRAFT NCS000446 SWMP Town of Apex August 2021 Page 19 Table 15: Illicit Discharge Detection and Elimination BMPs Continue to provide annual employee training on IDDE 1. Document a training program for relevant Town staff, who as part of their job duties, may come into contact with or otherwise observe an illicit discharge or illicit connection. 1. Annually (Permit Years 1-5) 1. Number of employees trained. 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 #16 Reporting Measures for the public to report illicit discharges, illegal dumping, and spills 1. Promote and facilitate a reporting mechanism for the public and staff to report illicit discharges. 1. Permit Years 1-5 1. Number of incidents reported. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 20 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM In accordance with 15A NCAC 02H .0153, the Town of Apex relies upon the North Carolina Sedimentation Pollution Control Act (SPCA) of 1973 as a 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 Town of Apex Delegated SPCA Program* 15A NCAC Chapter 04, NCDEQ Approved Delegation Town of Apex 2 * The local delegated SPCA Program ordinance(s)/regulatory mechanism(s) can be found at: http://www.apexnc.org/269/Soil-Erosion-Sedimentation-Control. The Town of Apex also implements the following BMPs to meet NPDES MS4 Permit requirements. Table 17: Construction Site Runoff Control BMPs 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 #17 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. 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 #18 Waste Management The above measures are required through the Town’s S&E ordinance. 1. Implementation of the S&E ordinance 1. Permit Years 1-5 1. Yes/No DRAFT NCS000446 SWMP Town of Apex August 2021 Page 21 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 Apex 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 Apex 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 N/A 2 Table 19: Deleted per template 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 #19 Standard Reporting Implement standardized tracking, documentation, inspections and reporting mechanisms to compile appropriate data for the annual self- assessment process. 1. Track number of low density and high density plan reviews performed. 1. 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. Permit Years 1-5 2. Number of plan approvals issued for low density and high density. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 22 Table 20: Post Construction Site Runoff Control BMPs 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. 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. Permit Years 1-5 4. Number of SCM inspections. 5. Track number and type of enforcement actions taken. 6. Permit Years 1-5 6. Number of enforcement actions issued. 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 #20 Legal Authority Maintain the Town’s Unified Development Ordinance (UDO) necessary to implement and enforce the requirements stated above. 1. Regularly update the UDO. 1. Permit Years 1-5 1. Yes/No 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 DRAFT NCS000446 SWMP Town of Apex August 2021 Page 23 Table 20: Post Construction Site Runoff Control BMPs #21 Plan Reviews Conduct plan reviews for sites that disturb greater than or equal to one acre. The site plan review shall address how the project meets performance standards. 1. Continue monthly plan review for new development projects as they are submitted. 1. Permit Years 1-5 1. Number of plans (greater than or equal to 1 acre) reviewed. #22 Operation & Maintenance (O&M) Agreements Implement and maintain an O&M program for Stormwater Control Measures (SCMs). 1. Continue to require an O&M agreement to be recorded with Wake County for each new SCM approved in Town. 1. Permit Years 1-5 1. Number of O&M agreements recorded. #23 Undisturbed Riparian Buffers Implement a Town-wide program to require 100’ buffers on all perennial streams and 50’ buffers on all intermittent streams. 1. Continue to implement a Town-wide riparian buffer protection program. 1. Permit Years 1-5 1. Yes/No 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 #24 Annual Inspection Require an annual inspection of each SCM in Town to be submitted by the property owner. 1. Continue to require an annual SCM inspection report sealed by a PE, RLA, or PLS for each SCM in Town. 1. Permit Years 1-5 1. Number of enforcement actions issued. #25 Town-inspection Conduct and document inspections of all SCMs in Town once per permit cycle. 1. Inspect each SCM in Town and document findings. 1. Permit Years 1-5 1. Number of inspections performed. DRAFT NCS000446 SWMP Town of Apex August 2021 Page 24 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 #26 Animal Waste Ordinance Maintain a Town ordinance to manage pet waste. 1. Maintain Section 4.1 of the Town municipal code to manage pet waste. 1. Permit Years 1-5 1. Yes/No DRAFT NCS000446 SWMP Town of Apex August 2021 Page 25 PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS This SWMP provides a comprehensive pollution prevention and good housekeeping strategy for the Town of Apex 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 l and 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 Town of Apex 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 #27 Inventory of Municipal Facilities Maintain a current inventory of municipal facilities with the potential for generating polluted stormwater runoff. 1. Keep an updated inventory of municipal buildings with the potential for generating polluted stormwater runoff and inspect them annually. 1. Permit Years 1-5 1. Yes/No #28 O&M Program DRAFT NCS000446 SWMP Town of Apex August 2021 Page 26 Table 21: Pollution Prevention and Good Housekeeping BMPs Draft an O&M plan for each municipal facility with the potential for generating polluted stormwater runoff. 1. As new facilities are built, draft an O&M plan that building operators can follow in order to reduce pollution in the stormwater runoff. 1. Permit Years 1-5 1. Yes/No #29 Staff Training Provide annual employee training on pollution prevention and good housekeeping. Continue to document a training program for relevant Town staff on pollution prevention and good housekeeping practices. 1. Permit Years 1-5 1. Number of employees 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 #30 Spill Response Plans Updated spill response plans should be kept for any municipal facility with the potential for generating polluted stormwater runoff. 1. Continue to keep spill response procedures updated and located at appropriate locations. 1. Permit Years 1-5 1. Yes/No 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. BMP No. A B C D Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric #31 Storm Drain Maintenance Plan Maintain a current storm drain maintenance plan. 1. Keep an updated plan for storm drain maintenance procedures. 1. Permit Years 1-5 1. Yes/No 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 DRAFT NCS000446 SWMP Town of Apex August 2021 Page 27 Table 21: Pollution Prevention and Good Housekeeping BMPs #32 Town-Owned SCM O&M Program Ensure all Town-owned SCMs are maintained and inspected regularly. 1. Continue to maintain Town-owned SCMs on a monthly basis and inspect annually and keep documentation of all activity. 1. Permit Years 1-5 1. Number of inspections performed. 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 #33 Pesticide, Herbicide, and Fertilizer Application Management Relevant municipal employees shall be trained and follow all permits and certifications. 1. Continue to train employees on appropriate pesticide, herbicide, and fertilizer practices and maintain documentation of certifications. 1. Permit Years 1-5 1. Yes/No 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 #34 Municipal Vehicle Maintenance Implement measures to prevent or minimize contamination of stormwater runoff from all areas used for municipal vehicle cleaning and maintenance. 1. Continue to utilize the vehicle washing station at the PW facility and conduct all maintenance at the PW Fleet shop where appropriate measures such as oil/water separators are installed. 1. Permit Years 1-5 1. Yes/No 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. A B C D DRAFT NCS000446 SWMP Town of Apex August 2021 Page 28 Table 21: Pollution Prevention and Good Housekeeping BMPs BMP No. Description of BMP Measurable Goal(s) Schedule for Implementation Annual Reporting Metric #35 Public Street Maintenance Implement a street sweeping program to regularly clean all publically owned roads and parking lots. 1. Continue to maintain a street sweeping program. 1. Permit Years 1-5 1. Quantity of sediment / debris removed from swept roads.