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Home My WebLink AboutNCS000466_Hillsborough Final Draft SWMP_20240311 NPDES Phase II MS4 Permit #NCS000466 March 11, 2024 t r: 4 y. t` The Stormwater and Environmental Services Division oversees the town's stormwater management program and stormwater utility. The mission of this program is to reduce stormwater runoff pollution reaching the Eno River. Draft Stormwater Management Plan Town of Hillsborough NCS000466 March 11, 2024 Table of Contents PART 1: INTRODUCTION ........................................................................................................................1 PART2: 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............................................................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................................... 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..........................................................................13 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM......................................................... 17 PART 6: PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM...........................................19 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM..............................20 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM...................................................24 PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM........................................26 PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS......................30 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 Town of Hillsborough 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 Hillsborough 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 NCS000466, 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 Hillsborough and located within the corporate limits of the Town of Hillsborough. In preparing this SWMP,the Town of Hillsborough 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 NCS000466 SWMP Town of Hillsborough March 11, 2024 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: Print Eric Peterson Name: Title: Town Manager Signed this day of 20 DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 2 PART 3: MS4 INFORMATION 3.1 Permitted MS4 Area This SWMP applies throughout the corporate limits of the Town of Hillsborough, including all regulated activities associated with the discharge of stormwater from the MS4. The map on the following page shows the corporate limits of Town of Hillsborough as of the date of this document. H I LLSBOROUGH III STOAMWATEA AND ' ENVIRONMENTAL SERVICES N057 I e + ■ v SI{ r 11 Mc BeLL : .r V5 74;E9G86 Truck US 70 6usingss_ Bysass - 6 Truck Duke Forest Historic I _ Hillsboro District - Division Hillsborough 140.185;MG-88 Truck 1 JS 0 Bfi � U5706ypass Ij Fig '163 'rl,. d6usiness usiness '�'�` 259 �. \ 140 186 + . NC 85 � t 'Duke Forest 28`_ _ -EdebLkrn. - Division r 7 _-- Legend y.... Tow- i M1:5boi( Corporate Limits r� 0 0.25 0.5 1 Miles la DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 3 3.2 Existing MS4 Mapping The current MS4 mapping includes data for inlets,junction boxes,pipes,outfalls,channels, and ditches. Mapping is maintained in a geodatabase which is updated periodically with as-built information from completed development projects. The MS4 mapping also includes locations of both privately-owned and town-owned Stormwater Control Measures (SCM),locations of town-owned property, and streams and waterbodies. The stream and waterbodies geodatabase is periodically updated based on field work associated with stream determinations. Table 1: Summary of Current MS4 Mapping Percent of MS4 Area Mapped 95 % No. of Major Outfalls* Mapped 124 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. **This total includes all stormwater outfalls within the Town of Hillsborough's MS4. Not all of these outfalls are major outfalls. The town is in the process of assessing all outfalls to determine which are major outfalls based on the definition above. 3.3 Receiving Waters The Town of Hillsborough MS4 is located within the Neuse 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 NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 4 Table 2: Summary of MS4 Receiving Waters Receiving Water Name Stream Water 303(d)Listed Parameter(s) Index/AU Quality of Interest Number Classification Eno River(Corporation Lake, 27-2-(3.5) WS-II; Lake Ben Johnston) HQW, CA, NSW Eno River 27-2- 7 C;NSW,N Seven Mile Creek 27-2-6-(1.5) WS-II; HQW, CA, NSW Rocky Run 27-2-6-2-(2) WS-II; HQW,NSW Cates Creek 27-2-8 C;NSW Stroud's Creek 27-2-9 C;NSW Stony Creek 27-2-13- 1 C;NSW 3.4 MS4 Interconnection The Town of Hillsborough 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. The number of interconnections is estimated. Quantity: 19. b. The interconnection is discharging stormwater into the NCDOT MS4. The number of interconnections is estimated. Quantity: 52. c. The Town of Hillsborough MS4 mapping does identify interconnections with the NCDOT MS4. d. The Town of Hillsborough 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 NCS000466 SWMP Town of Hillsborough March 11, 2024 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 Statewide Mercury N N Falls Lake Chlorophyll a N Y The Statewide TMDL for mercury does not require any actions by the NPDES stormwater permittee because most mercury in stormwater comes from atmospheric deposition. Falls Lake was listed as impaired for chlorophyll a and placed on the 303(d)in 2008. Subsequently the state adopted the Falls Lake Rules in January 2011 which were developed to achieve water quality standards in the lake by reducing the amount of nutrient pollution entering upstream. The rules are a staged nutrient management strategy designed to reduce nutrient discharges to the lake from various sources,including stormwater runoff from new and existing development,wastewater treatment plants and agriculture. These rules are an approved TMDL alternative and the lake was placed in category 4b in 2012. The Town of Hillsborough complies with the current Falls Lake rules by implementing stormwater rules for new development,participating in a state approved joint compliance program that meets requirements for stormwater runoff from existing development, and by meeting nutrient limits in the effluent from the town's wastewater treatment plant. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 6 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 Alasmidonta heterodon Dwarf Wed emussel* Clam E Fusconaia masoni Atlantic Pigtoe Clam T Lasmi ona subviridis Green Floater Clam PT Necturus lewisi Nuese River Waterdog Amphibian T Noturus uriosus Carolina madtom Freshwater Fish E Haliaeetus leucoce halus Bald Eagle Bird BGPA *Historical occurrence 3.7 Industrial Facility Discharges The Town of Hillsborough 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 NCG110115 Town of Hillsborough Wastewater Plant NCGNE1451 Town of Hillsborough—Fleet Facility NCG020157 Resco Products Inc.—Piedmont Minerals 3.8 Non-Stormwater Discharges The water quality impacts of non-stormwater discharges have been evaluated by the Town of Hillsborough as summarized in Table 6 below. The unpermitted non-stormwater flows listed as incidental do not significantly impact water quality. The Town of Hillsborough 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 Hillsborough. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 7 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 of Hillsborough'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 detergents have been evaluated by the Town of Hillsborough 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 crawls ace 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 Possible Street wash water Possible Flows from firefighting activities Incidental *While currently exempt,this could be a source of pollutants and the town will monitor 3.9 Target Pollutants and Sources In addition to those target pollutants identified above,the Town of Hillsborough is aware of other significant water quality issues within the permitted MS4 area. These include fertilizer and application of lawn care products,yard waste, disposal of household chemicals, dumping of used oil, disposal of restaurant wash water(fats,oil and grease),pet waste and litter. Some of these topics are currently targeted by our regional partnership with the Clean Water Education Partnership(CWEP). Others are addressed through the Town of Hillsborough's Stormwater and Environmental Services Division based on field observations,citizen complaints and implementation of the town's Illicit Discharge Detection and Elimination(IDDE)plan. Based on multiple citizen complaints and staff field observations,local residents are often the source of fertilizer,yard waste and other lawn care products. Some of these complaints have determined that lawn DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 8 care companies are a source as well. Citizen complaints and field investigation has also shown that restaurants are a source of wash water that may contain fats, oil and grease. Field observations from town staff indicate that litter is an issue town-wide and generally an issue in both residential and commercial areas. Dumping of used oil is an occasional issue in less developed areas of town. 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 Hillsborough 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 Fertilizer Residents,Businesses Public Education&Outreach Household Chemicals Residents Public Education&Outreach Pet Waste Residents Public Education&Outreach Illicit Discharges Businesses,Residents,Municipal Public Education&Outreach, Operations Illicit Discharge Detection and Elimination,Pollution Prevention and Good Housekeeping Used Oil Residents,Businesses Public education& Outreach, Illicit Discharge Detection and Elimination Yard Waste Residents,Landscaping Businesses Public education& Outreach, Illicit Discharge Detection and Elimination Fats, Oil and Grease Restaurants Public education& Outreach, Illicit Discharge Detection and Elimination Litter Residents,Businesses, Schools Public Education&Outreach, Public Involvement& Participation DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 9 PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION 4.1 Organizational Structure The Town of Hillsborough's NPDES Phase II stormwater program is implemented through the Stormwater and Environmental Services Division within the Community Services Department. The Stormwater and Environmental Services Manager is responsible for the day-to-day implementation of the program. The Stormwater and Environmental Services Division also includes two dedicated staff, Stormwater Program Coordinator and Stormwater Technician. The Public Works Division is responsible for maintenance and operation of the town's MS4, including implementation of portions of minimum control measure#6. Currently one FTE within the Public Works Division is funded by the town's stormwater program. The following organizational chart details the Community Services Department and highlights the town's stormwater staff and Table 8 provides a list of SWMP components and responsible positions. i� TOWN OF HILLSBOROUGH Trueblood,Public Services Department Matt Efird,Assistant Town Ma nager/Di rector Public Spaces and Planning and Economic Stormwater and Pulic Works Division Sustainability Division Development Division Environmental Services Division Dustin Hill,Manager Stephanie ProgramManager Stormwater Coordinator Heather Fisher Stormwater Technician Claire Hansen DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 10 Table 8: Summary of Responsible Parties SWMP Component Responsible Position Staff Name Department Stormwater Program Stormwater and Administration Environmental Services Terry Hackett Community Services Manager SWMP Management Stormwater and Environmental Services Terry Hackett Community Services Manager Public Education& Stormwater Program Heather Fisher Community Services Outreach Coordinator Public Involvement& Stormwater Program Heather Fisher Community Services Participation Coordinator Illicit Discharge Detection& Stormwater Technician Claire Hansen Community Services Elimination Construction Site Erosion Control and Orange County Runoff Control Stormwater Supervisor Steve Kaltenbach Planning and Inspections Post-Construction Stormwater Program Stormwater Heather Fisher Community Services Management Coordinator Pollution Prevention/Good Stormwater Technician Claire Hansen Community Services Housekeeping for Municipal Operations Municipal Facilities Operation& Facilities Coordinator Rod Jones Community Services Maintenance Program Spill Response Program Safety&Risk Officer David Moore Administrative Services MS4 Operation& Public Works Manager Dustin Hill Community Services Maintenance Program Municipal SCM Operation& Public Works Manager Dustin Hill Community Services Maintenance Program DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 11 Pesticide,Herbicide& Public Works Manager Dustin Hill Community Services Fertilizer Management Program Vehicle&Equipment Fleet Maintenance David Wisely Administrative Services Cleaning Program Supervisor Pavement Management Public Works Manager Dustin Hill Community Services Program Total Maximum Daily n/a n/a n/a Load(TMDL) Requirements 4.2 Program Funding and Budget In accordance with the issued permit,the Town of Hillsborough 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 Hillsborough Stormwater Management Program is funded through a stormwater management utility fee. Currently residential properties are charged a flat fee of$75/annually.Non- residential properties are billed using a tiered flat rate based on impervious surface. Currently,three positions are funded in the town's Stormwater and Environmental Services Division that oversee and implement the town's stormwater management program. Two positions are also funded in the Public Works Division and assist with operation and maintenance of the town's MS4 infrastructure. For the fiscal year beginning July 1, 2023 and ending June 30,2024(FY24),the approved stormwater program management operating budget is $999,279. It is estimated that the following revenues will be available in the Stormwater Fund for FY24: • Licenses,Permits,and Fees $716,100 • Retained Earnings Appropriated $283,179 Total $999,279 4.3 Shared Responsibility The Town of Hillsborough 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 Hillsborough 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 Hillsborough 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 DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 12 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 Legal Permit Requirement Implementing Entity&Program Name Agreement Y/N Permit Section 3.2.2&3.2.4 Clean Water Education Partnership CWEP Y Permit Section 3.5 1 Orange County Erosion Control Program Y 4.4 Co-Permittees The are no other entities applying for co-permittee status under the NPDES MS4 permit number NCS000466 for the Town of Hillsborough. Table 10 summarizes contact information for each co- permittee. Table 10: Co-Permittee Contact Information Co-Permittee MS4 Contact Person Phone&E-Mail Interlocal Name Agreement Y/N N/A 4.5 Measurable Goals for Program Administration The Town of Hillsborough 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 Program Implementation 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. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 1. Annual Self-Assessment Evaluate the performance and 1.Prepare,conduct and 1.Annually 1.Yes/No effectiveness of the program document an annual Permit Years 1 —5 components at least annually.Results evaluation of the program shall be used to modify the program components. components as necessary to accomplish the intent of the Stormwater Program. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 13 Table 11: Program Administration BMPs 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 2. 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 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. Permit 2. 1. 1: Adequate Funding and Staffing Ref. Ref. The permittee shall maintain adequate funding and staffing to implement and manage the provisions of the SWMP and meet all requirements of thispen-nit. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 3. Adequate Funding and Staffing Permittee shall maintain adequate 1.Evaluate funding and 1.Permit Years 1-5 1.Yes/No funding and staffing to meet all the staffing needs annually permit requirements. as part of the town's budgeting process in order to maintain an adequate program to satisfy permit requirements. Permit 2.2.2 Written Procedures Ref. The Permittee shall maintain written procedures for implementing the six minimum control measures. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 4. Create and/or update written program 1. Create a written Public 1.Permit Year 1 1.Yes/No/Status plans for all 6 minimum control Education and Outreach measures.Plans will be reviewed and I Program plan. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 14 Table 11: Program Administration BMPs updated accordingly when program 2. Create a written Public 2.Permit Year 1 2.Yes/No/Status components need to be modified. Involvement and Participation Program Plan. 3.Review existing 3.Permit Years 1-5 3.Yes/No IDDE,operation& maintenance,pollution prevention,public education and public involvement plans annually and update accordingly. 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 5. Informational Website Continue to maintain the stormwater 1.Maintain web pages. 1.Annually,Permit 1.Yes/No web pages with information on Years 1-5 relevant ordinances,post- 2.Monitor engagement. 2.Annually,Permit 2.Number of web construction requirements,design Years 1-5 stormwater web page standards,pollution prevention, visits education and involvement,and other relevant stormwater information on the Town's official website. 6. Social Media Coverage Continue to distribute information on 1. Choose a target 1.Weekly,Permit Years 1.Yes/No pollution prevention,green pollutant,green 1-5 infrastructure and general stormwater infrastructure or general management and related issues on the stormwater information Town's stormwater division social to share. media accounts 2. Share posts via social 2.Weekly,Permit Years 2.Number of posts media accounts 1-5 DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 15 Permit 3.2.5 and 3.31: Stormwater Hotline and Public Input Ref. Measures for a stormwater hotline/helpline for the purpose of public education and outreach. Mechanisms for ublic 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 7. Stormwater Infoline Continue maintaining a stormwater 1.Promote and maintain 1.Annually,Permit 1.Yes/No Infoline that allows citizens to ask a phone number and Years 1-5 stormwater questions,report stormwater specific stormwater issues and request email address for the educational programming. The public to provide input Infoline is advertised on the on the town's stormwater stormwater web pages. program,request public education and outreach, Maintain a stormwater Infoline and programs and to report stormwater specific email address for stormwater issues and citizens to report stormwater concerns. concerns or provide input to the 2.Continue to publicize 2.Annually,Permit 2.Yes/No town's Stormwater program. the Infoline and Years 1-5 stormwater email in materials developed for the stormwater program and on the stormwater web pages. 3. Continue tracking the 3.Annually,Permit 3.Number of Infoline number of calls/emails, Years 1-5 calls/emails received and types of requests and types of requests and input received. input received. 8. Stormwater Public Meetings Provide opportunities for the general 1.At least once annually, 1. Once annually,permit 1.Yes/No public to give input on the town's provide an update on the years 1-5 stormwater program. stormwater program to the town board at a town board meeting or workshop that is open to the public.Advertise the meeting and encourage the public to attend and provide input. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 16 PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM The Town of Hillsborough 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 Hillsborough 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) Fertilizer Residents,Business Household Chemicals Residents Pet Waste Residents Used Oil Residents, Businesses Yard Waste Residents,Landscaping Businesses Fats,Oil and Grease Restaurants Litter General Public,Businesses, Schools 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 Hillsborough will manage, implement and report the following public education and outreach BMPs. 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 9. Partnership with Clean Water Education Partnership(CWEP) Continue to engage with CWEP on 1.Review/Renew legal 1.Permit Year 1 (as 1.Yes/No/Status education and outreach efforts. agreement with CWEP required in Permit Years Outreach mechanisms include 2-5 DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 17 Table 13: Public Education and Outreach BMPs television,movie,online,and radio 2.Monitor CWEP 2.Annually,Permit 2.Report number and ads,newspaper and print ads, activities to ensure Years 1-5 types of programming handouts,promotional items,annual partnership commitments and total audience targeted pollutant outreach,and are met,specifically with reached events. media programing including approximately 12 weeks of digital pre- roll video PSAs and 8 weeks of television, radio,social media and/or digital PSAs across various target audiences. 10. Town-Sponsored Activities Conduct at least one activity or for a 1. Select a target 1.Annually,Permit 1.Yes/No/Status target audience that discusses audience and develop or Years 1-5 pollution prevention for target identify at least one pollutants,use of green infrastructure activity to provide and/or general stormwater education information on management.Examples of activities target pollutants. include,but are not limited to, 2.Provide the activity to 2.Annually,Permit 2.Contact hours or presentations,walking tours, the selected target Years 1-5 number of people canvassing campaigns, audiences. reached education/outreach at volunteer events,and targeted videos.Target audiences include local businesses, HOAs and other civic groups. 11. Public Events Continue to distribute information on 1.Develop or identify 1.Annually,Permit 1.Yes/No/Status pollution prevention,green one interactive activity at Years 1-5 infrastructure and general stormwater the event that addresses management and related issues target pollutant(s),green during at least one public event or infrastructure or general festival annually. stormwater education. 2. Staff an event/festival 2.Annually,Permit 2.Number of contact and perform the activity. Years 1-5 hours 12. School Events Continue participating in at least one 1.Develop or identify 1.Annually,Permit 1.Yes/No/Status school(or school aged children) one interactive activity at Years 1-5 event annually to provide an activity the school event that and present and/or distribute addresses target information on pollution prevention pollutant(s)or general and/or general stormwater education. stormwater education. 2. Staff an event/festival 2.Annually,Permit 2.Number of contact and perform the activity. I Years 1-5 hours DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 18 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 Hillsborough will manage, implement and report the following public involvement and participation BMPs. 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 13. Town-Sponsored Volunteer Opportunities Continue to plan and implement at 1.Develop or identify at 1.Annually,for Permit 1.Yes/No/Status least one town-sponsored volunteer least one volunteer Years 1-5 opportunity annually.This includes activity that addresses a but is not limited to litter/stream target pollutant or cleanups,volunteer monitoring, pollutants. invasive plant removal,planting rain 2. Coordinate and host 2.Annually,for Permit 2.Type of event,number gardens,riparian buffer plantings, the activity. Years 1-5 of participants,waste etc. removed in pounds,area planted,etc. 14. Creek Week Plan and promote at least one 1.Develop or identify at 1.Annually,for Permit 1.Yes/No/Status volunteer activity as part of the local least one Creek Week Years 1-5 and/or regional Creek Week activity that addresses a celebration. target pollutant or ollutants. 2. Coordinate and host 2.Annually,for Permit 2.Type of event,number the activity. Years 1-5 of participants DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 19 PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM The Town of Hillsborough 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 15. Updates to the MS4 Map Maintain the MS4 map with 1.Review current MS4 1.Permit Year 1 1.Yes/No/Status information including stormwater mapping and update with conveyances,outfalls,flow direction, as-built information,for and receiving waters.Update the map areas not previously annually with newly identified or mapped. constructed stormwater infrastructure 2.Review current MS4 2.Permit Years 1-5 2.Yes/No/Status mapping and add flow direction if missing. Target is 20%of existing —mapping annually. 3.Add new 3.Permit Years 1-5. 3.Number of new conveyances/outfalls to outfalls added the MS4 map as they are located or constructed. 16. Updates to Major Outfalls Review currently mapped outfalls to 1.Review currently 1.Permit Year 1-2 1.Yes/No/Status determine status;update outfall status mapped outfalls to as major,minor or not an outfall. determine outfall status 2.Update outfall status 2.Permit Year 1-2 2.Total number of major in MS4 map. outfalls mapped 3.Modify IDDE dry 3.Permit Year 1 3.Yes/No weather screening form to include major outfall condition. 4.Update condition of 4.Permit Year 1-5 4.Number of major major outfalls in MS4 outfalls updated map. Target all major outfalls annually and other mapped outfalls at least once during the permit cycle. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 20 Table 15: Illicit Discharge Detection and Elimination BMPs 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, includin enforcement procedures and actions. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 17. Maintain Adequate Legal Authority Ensure the continued applicability, 1. Evaluate the IDDE Permit Year 1 1.Yes/No/Status accuracy and legal standing of the Ordinance and revise as IDDE provision in the town's Code necessary. of Ordinances(Chapter 11,Article V). 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 18. Maintain IDDE Plan Maintain a written IDDE plan to 1.Maintain and 1.Annually,Permit 1.Yes/No/Status detect and address illicit discharges, implement the written Years 1-5 illegal dumping and non-stormwater IDDE plan. Once dischargers identified as significant annually conduct review pollutants to the MS4,including of IDDE plan,standard provisions for program assessment documentation,forms and evaluation. and SOPS;make changes as necessary. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 21 Table 15: Illicit Discharge Detection and Elimination BMPs BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 19. Dry Weather Outfall Screenings In accordance with the town's IDDE 1. Conduct dry weather 1.Permit Years 1-5 1.Number of major plan,conduct and track dry weather screenings of all major outfalls inspected; outfall screenings to proactively outfalls annually; number of other mapped identify illicit discharges and conduct dry weather outfalls inspected connections. screenings of other mapped outfalls at least once during the permit cycle. 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 20. IDDE Tracking Database Maintain existing IDDE tracking 1. Track IDDE dry 1.Permit Years 1-5 1.Number of NOVs database to document dry weather weather screenings and issued;Number of NOVs screenings and incident document the date of the closed;Number of investigations. screening,condition of further enforcement the outfall,results of the actions. screening,follow-up investigations,and enforcement actions. 2.Track IDDE incident 2.Permit Years 1-5 2.Number of NOVs investigations and issued;Number of NOVs document the date(s) closed;Number of observed,results of further enforcement investigation,follow-up actions required,enforcement actions,and date investigation closed. 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, DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 22 Table 15: Illicit Discharge Detection and Elimination BMPs BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 21. Staff IDDE Training Provide training to educate town staff 1.Review and update 1.Permit Year 1 1.Yes/No/Status about indicators of potential illicit existing IDDE training discharges,illicit connections,illegal materials/presentation for dumping,and how to report potential both virtual and in- incidents. person training. Incorporate virtual IDDE training into town's onboarding process for new employees. 2. Schedule and conduct 2.Permit Year 1 2.Yes/No/Status; in-person IDDE training number of employees for existing staff at least trained once during permit cycle. 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 22. Infoline Maintain and publicize a stormwater 1.Maintain a phone 1.Permit Years 1-5 1.Yes/No Infoline and stormwater specific number and stormwater email address for community specific email address for members to report potential illicit the community to report discharges,illicit connections,illegal IDDE concerns. dumping,and spills. 2.Publicize the Infoline 2.Permit Years 1-5 2.Yes/No;number of and stormwater email on IDDE complaints the town's web site and received. related IDDE print materials.. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 23 PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM In accordance with 15A NCAC 02H .0153,the Town of Hillsborough 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 State or Local Program Name Legal Authority Implementing Reference Entity 3.5.1 - Orange County Erosion 15A NCAC Chapter 04, Orange County 3.5.4 Control NCDEQ Approved Delegation, Delegated SPCA Program* Interlocal Agreement/Joint Resolution,Local Ordinance * The local delegated SPCA Program ordinance(s)/regulatory mechanism(s)can be found at: https://www.oran eg countync.gov/3054/Erosion-Control-and-Stonnwater-Mana eg men The Town of Hillsborough also implements the following BMPs to meet NPDES MS4 Permit requirements. Table 17: Construction Site Runoff Control BMPs Permit 3.5.1: Regulatory Mechanism Ref. Provide an ordinance or other regulatory mechanism to require erosion and sediment controls, as well as sanctions to ensure compliance,to the extent allowable under State, Tribal or local law. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 23. Interlocal Agreement Review,update and approve an 1.Review existing 1.Permit Year 1. 1.Yes/No/Status interlocal agreement for Orange interlocal agreement and County to implement and enforce update as appropriate. Construction Site Runoff Controls 2.Approve updated 1.Permit Year 1 1.Yes/No/Status. within the town planning jurisdiction. interlocal agreement by Orange County and Town of Hillsborough Board of Commissioners. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 24 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 24. Municipal Staff Training Train municipal staff who receive 1. Train municipal staff 1.Annually Permit Years 1.Number of staff calls from the public on the protocols on proper handling of 1-5 trained for referral and tracking of construction site runoff construction site runoff control control complaints. com Taints. 25. Infoline Maintain and publicize a stormwater 1.Maintain a phone 1.Permit Years 1-5 1.Yes/No Infoline and stormwater specific number and stormwater email address for community specific email address for members to report observed erosion the community to report and sedimentation problems construction site runoff associated with construction sites. concerns. 2.Publicize Infoline and 2. Permit Years 1-5 2.Yes/No stormwater email on developed materials and on the town's web site. 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 26. Maintain Adequate Legal Authority Ensure that the town and/or Orange 1.Evaluate town and Permit Year 1 1.Yes/No/Status County has authority to enforce Orange County waste management requirements for ordinances and revise as applicable construction site. necessary. 27. Contractor Education Communicate waste management 1.Develop fact sheet to 1.Permit Year 2 1.Yes/No/Status. requirements to construction site share at preconstruction operators. meetin s. 2.Add fact sheet to 2.Permit Year 2 2.Yes/No/Status. town's web site. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 25 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 Hillsborough 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 Hillsborough 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 Falls Reservoir Water Supply Nutrient 15A NCAC 02B Town of Hillsborough's Unified Strategy: Stormwater Management for .0277 Development Ordinance,Section New Development* 6.20 Stormwater Management Neuse River Basin:Nutrient Sensitive 15A NCAC 02B Town of Hillsborough's Unified Waters(NSW)Management Strategy: .0714 Development Ordinance,Section Protection and Maintenance of Existing 6.20.16 Riparian Buffers Riparian Buffers* *QAP covers the Town of Hillsborough's entire MS4 area. Table 19: Summary of Existing Post-Construction Program Elements does not apply since the QAP listed above covers the entire Town of Hillsborough's jurisdictional area. 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 pro ress, status, and results. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 28. Standard Reporting Implement standardized tracking, 1. Track number of low 1. Continuously 1.Number of plan documentation,inspections and density and high density Permit Years 1-5 reviews performed for reporting mechanisms to compile plan reviews performed. low density and high appropriate data for the annual self- density. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 26 Table 20: Post Construction Site Runoff Control BMPs assessment process. Data shall be 2. Track number of low 2. Continuously 2.Number of plan provided for each Post-Construction/ density and high density Permit Years 1-5 approvals issued for low Qualifying Alternative Program plans approved. density and high density. being implemented as listed in Tables 3.Maintain a current 3. Continuously 3. Summary of number 18 and 19. inventory of low density Permit Years 1-5 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. Continuously 4.Number of SCM —inspections performed. Permit Years 1-5 inspections. 5. Track number of low 5. Continuously 5.Number of low density density inspections Permit Years 1-5 projects inspected. performed. 6. Track number and 6. Continuously 6.Number of type of enforcement Permit Years 1-5 enforcement actions actions taken. issued. Permit 2.3 and 3.6: Qualifying Alternative Program(s) Ref. Measures to develop,implement and enforce additional BMPs in order to comply with the QAP state program re uirements. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric The QAP requirements are fully met by the existing QAP for post-construction,see references provided in Table 18. The Town of Hillsborough implements one QAP for the entire MS4 permit area. 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 QAP for post-construction program,see reference provided in Table 18.The Town of Hillsborough implements one QAP for the entire MS4 permit area. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 27 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 This permit requirement is fully met by the existing QAP for post-construction program,see reference provided in Table 18.The Town of Hillsborou h implements one QAP for the entire MS4 permit area. 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 This permit requirement is fully met by the existing QAP for post-construction program,see reference provided in Table 18. The Town of Hillsborough implements one QAP for the entire MS4 permit area. 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. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 28 Table 20: Post Construction Site Runoff Control BMPs BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 29. Revisions to Code of Ordinances Revise existing ordinance to add 1.Revise code to add 1.Permit year 2 1.Report code reference controls of fecal coliform from pet controls of fecal coliform and date adopted. waste. from pet waste. 30. Orange County On-Site Wastewater Treatment Coordinate with Orange County 1. Coordinate with 1.Permit year 2 1.Number of sites Environmental Health to provide Orange County identified. outreach and education of proper Environmental Health to operation and maintenance of on-site determine the number of domestic wastewater treatment OSDWT sites in town (OSDWT) limits. 2.Distribute educational 2.Permit year 2-5 3.Number of materials materials to OSDWT distributed owners in the town. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 29 PART 10:POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS This SWMP provides a comprehensive pollution prevention and good housekeeping strategy for the Town of Hillsborough 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 Town of Hillsborough 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 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 ractices. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 31. Facility Mapping Maintain a current inventory of 1.Review existing 1.Permit Year 1 1.Yes/No/ municipal facilities. facility inventory and Number of facilities ensure all current town- added owned properties are listed;update inventory and map if necessary. 2.Review list of town- 2.Permit Years 1-5 2.Yes/No owned facilities annually and update inspection priority based on pollution potential. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 30 Table 21: Pollution Prevention and Good Housekeeping BMPs 32. Facility Inspection Conduct facility inspections in 1. Inspect facilities with 1.Permit Years 1-5 1.Number of facilities accordance with the town's written pollution potential at inspected. pollution prevention plan that has least once annually. established frequencies,schedules 2. Inspect facilities with 2.Permit Years 1-5,at 5.Number of facilities and standard documentation low pollution potential at least once during permit inspected. requirements. least once during permit cycle. cycle. 33. Staff Pollution Prevention Training Review and update pollution 1.Review and update 1.Permit Year 1 1.Yes/No/Status prevention/good housekeeping existing pollution training materials/presentation for prevention/good town employees. housekeeping training materials/presentation. Incorporate virtual training into town's onboarding process for new employees. 2. Schedule and conduct 2.Permit Year 1 2.Number of staff in-person pollution trained prevention training for existing staff at least once during permit cycle. 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 34. Spill Response Plan and Procedures Maintain and implement spill 1. Continue to keep 1.Permit Years 1-5. 1.Yes/No response procedures as part of the SPCC plan updated and town's SPCC Plan for town-owned located at appropriate facilities that store and/or use locations. materials with the potential to spill and contaminate runoff. 35. Spill Responses Training Provide spill response training as part 1. Schedule and conduct 1.Permit Year 1 1.Number of staff of the town's pollution in-person spill response trained prevention/good housekeeping training as part of the training program. pollution prevention training for existing staff at least once during permit cycle. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 31 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 36. MS4 Operation and Maintenance Plan Continue Implementing the town's 1.Review and update as 1.Permit Years 1-5. 1.Yes/No written MS4 Operation and necessary,the town's Maintenance Plan(OMP)which MS4 OMP annually. establishes frequencies,schedules and standard documentation requirements. 37. MS4 Inspections Conduct formal MS4 inspections 1. Conduct formal MS4 1.Permit Years 1-5 1.Percentage of MS4 based on the written OMP and inspections of at least system inspected. conduct informal inspections based 20%of town-owned on public complaints or concerns. MS4 annually. 2. Conduct informal 2.Permit Years 1-5. 2.Number of informal MS4 inspections based inspections completed on public complaints or concerns. 3. Track locations of 3.Permit Years 1-5. 3.Yes/No public complaints or concerns in town's GIS to determine"hotspots." 38. MS4 Maintenance Schedule and complete MS4 1. Clean/maintain catch 1.Permit Years 1-5 1.Number of maintenance identified through the basins,inlets,cross maintenance activities formal and informal MS4 pipes/culverts and completed inspections. ditches. 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 39. Town-owned SCM Inventory DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 32 Table 21: Pollution Prevention and Good Housekeeping BMPs Document and maintain inventory of 1.Update and maintain 1. Permit Years 1-5 1.Yes/No town-owned and/or operated SCMs. GIS inventory of town- owned and operated SCMs annually. 40. SCM Inspection and Maintenance Conduct town-owned SCM 1.Review SCM O&M 1.Annually,Permit 1.Yes/No inspections and complete plan and update as Years 1-5 maintenance in accordance with the necessary. town's written Operation and 2.Inspect all town- 2.Permit Years 1-5 2.Number of SCMs Maintenance Plan(OMP)for SCMs owned or operated SCMs inspected that contains established frequencies, at least once annually. schedules and standard 3.Document 3.Permit Years 1-5 3.Number of SCMs documentation requirements. maintenance identified maintained. during SCM inspections and complete maintenance. 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 a licator certifications. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 41. Applicator Training Continue training of town staff who 1.Require staff to 1.Permit Years 1-5 1.Number of certified apply landscape chemicals and are maintain certifications staff. required to attend certification and verify annually. classes. 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 42. Vehicle and Equipment Maintenance Implement measures to prevent or 1. Continue to utilize the 1.Permit Years 1-5 1.Yes/No minimize contamination of town's Fleet stormwater runoff from all areas used Maintenance Facility to for town-owned vehicles and maintain town-owned e ui ment maintenance. vehicles and equipment. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 33 Table 21: Pollution Prevention and Good Housekeeping BMPs 2. Inspect the fleet 2.Permit Years 1-5 2.Yes/No maintenance facility annually as part of the pollution prevention inspections to determine compliance with the existing"No Exposure" certificate. 3.Maintain"No 3.Permit Years 1-5 3.Yes/No/Status Exposure"certificate for Fleet Maintenance facility or obtain coverage under appropriate general NPDES stormwater permit. 43. Vehicle and Equipment Cleaning Implement measures to prevent or 1. Encourage all 1. Permit Years 1-5 1.Yes/No minimize contamination of employees to utilize stormwater runoff from all areas used Fleet's wash station for for town-owned vehicles and vehicle washing.Include equipment cleaning. information about vehicle washing in the pollution prevention training program. 2.Review other locations 2.Permit Years 1-5 2.Number of wash areas if used for vehicle or inspected. equipment cleaning as part of the town's facility inspections listed in pollution prevention —inspection program. 3.Review and update the 3.Permit Years 1-5 3.Yes/No town's OMP at least annually to reflect the number of allowable wash stations and add procedures as necessary. 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 ollutants associated with vehicles,and establish specific fre uencies,schedules,and documentation. BMP A B C D No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting Implementation Metric 44. Street Sweeping Program DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 34 Table 21: Pollution Prevention and Good Housekeeping BMPs Implement a street sweeping program 1. Continue 1.Permit Years 1-5 1.Quantity of for town-owned streets and parking implementing street sediment/debris removed lots. sweeping for approximately 88,952 linear feet of curb and gutter streets and parking lots in accordance with the town's written OMP procedures. 2.Analyze at least 2.Permit Years 1-5 2.Yes/No/Status annually,the number of streets in the street sweeping program and compare effectiveness with previous years. 3.Add additional streets 3.Permit Years 1-5 3.Linear feet of streets based on the review in swept/number of parking item 2 above. lots swept 45. Litter/Debris Management Implement measures to reduce litter 1.Evaluate litter loading 1.Permit Years 1-5 1.Yes/No loading in public areas. within town-owned street rights-of-way and public parking areas and document locations. 2.Remove litter and 2.Permit Years 1-5 2.Ponds/tonnage of debris from town-owned litter/debris removed street rights-of-way and public parking areas. 46. Leaf Removal Collect and remove leaves to reduce 1.Advertise the town's 1.Permit Years 1-5 1.Yes/No pollutants and prevent/reduce leaf collection services to clogging of MS4 infrastructure. the public through the town's website,social media and press releases 2. Seasonally provide 2.Permit Years 1-5 2.Pounds/Tonnage of leaf collection services leaves collected for residents that rake leaves to the street right- of-way. DRAFT NCS000466 SWMP Town of Hillsborough March 11, 2024 Page 35