HomeMy WebLinkAboutNCS000455_Draft SWMP_20230814 Town of
ak island
"A Mace to Coast" North Carolina
Draft Stormwater Management Plan
Town of Oak Island
NCS000455
August 9, 2023
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.................................................................................................................3
3.3 Receiving Waters.............................................................................................6
3.4 MS4 Interconnection.....................................................................................................................7
3.5 Total Maximum Daily Loads (TMDLs) .......................................................................................8
3.6 Endangered and Threatened Species and Critical Habitat............................................................9
3.7 Industrial Facility Discharges.......................................................................................................9
3.8 Non-Stormwater Discharges....................................................................................................... 10
3.9 Target Pollutants and Sources..................................................................................................... 11
PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION................................... 12
4.1 Organizational Structure............................................................................................................. 12
4.2 Program Funding and Budget..................................................................................................... 14
4.3 Shared Responsibility................................................................................................................. 14
4.4 Co-Permittees.............................................................................................................................. 15
4.5 Measurable Goals for Program Administration.......................................................................... 15
PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM......................................................... 17
PART 6: PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM...........................................20
PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM..............................22
PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM...................................................26
PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM........................................28
PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS......................33
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 Oak Island 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 Oak Island 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 NCS000455, 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 Oak Island and located
within the corporate limits of the Town of Oak Island.
In preparing this SWMP,the Town of Oak Island 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 NCS000455 SWMP
Town of Oak Island
8/9/23
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 David Kelly
Name:
Title: Town Manager
Signed this 9th day of August 2023.
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 2
PART 3: MS4 INFORMATION
3.1 Permitted MS4 Area
This SWMP applies throughout the corporate limits of the Town of Oak Island, including all regulated
activities associated with the discharge of stormwater from the MS4. The map below shows the corporate
limits of Town of Oak Island as of the date of this document.
3.2 Existing MS4 Mapping
The current MS4 mapping includes catch basins, discharge points,manholes, conveyance pipes, and
swales.
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DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 3
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vin« TOWN OF OAK ISLAND
STORMWATER CONVEYANCE SYSTEM® ,...
�.e" �3s" ■ ® sworeenmet .n.,o:3
=15;^ �.e;" • • 5w ascnege Point Eat[Sector ... A .im. rA,,•,,•„•
Percent of MS4 Area Mapped 100 %
No. of Major Outfalls* Mapped 34 total
*An outfall is a point where the MS4 discharges from a pipe or other conveyance (e.g. a ditch)directly
into surface waters. Major outfalls are required to be mapped to meet permit requirements. A major
outfall is a 36-inch diameter pipe or discharge from a drainage area> 50-acres; and for industrial zoned
areas a 12-inch diameter pipe or a drainage area> 2-acres.
3.3 Receiving Waters
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
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The Town of Oak Island MS4 is located within the Cape Fear and Lumber River Basins 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 Waterbodv Classification Map
o Impaired Waters and TMDL Map
o Most recent NCDEQ Final 303(d)List
Table 2: Summary of MS4 Receiving Waters
Waterbodv Classification Impairments
Intracoastal Waterway 15-24u SA:HQW-Impaired Fecal Coniform
Montgomery Slough 15-24u SA:HQW-Impaired Fecal Coniform
Eastern Channel 15-25-6 SA:HQW-Impaired Fecal Coniform
Atlantic Ocean 99-1 SB-Impaired Mercury
SB—Primary recreation, saltwater
SC—Aquatic life, saltwater
Fish Tissue Mercury(NAR, FC, NC)—Narrative standard,fish consumption advisory, North Carolina
standard
pH(8.5,AL, SW)—Aquatic life impairment, saltwater
The above Data is from 2022 NC Category 5 Assessments"2022 Final 303(d)List"and NC Surface
Water Classifications Map. From the 2022 303(d)Listing and Delisting Methodology for fish
Consumption: "Fish consumption was assessed based on site-specific fish consumption advisories
developed using fish tissue data. Advisories and advice are developed by DHHS using fish tissue data
collected by DWR and others. See http://epi.publichealth.nc.gov/fish/current.html for all advice and
advisories."
3.4 MS4 Interconnection
The Town of Oak Island MS4 is not interconnected with another regulated MS4 and directly discharges to
the receiving waters as listed in Table 2 above.
The MS4 does not interconnect with the statewide NCDOT MS4 and includes:
a. The interconnection is not receiving stormwater from the NCDOT MS4. The number of
interconnections is known/estimated/unknown. Quantity:N/A
b. The interconnection is not discharging stormwater into the NCDOT MS4. The number of
interconnections is known/estimated/unknown. Quantity:N/A
c. The Town of Oak Island MS4 mapping does not identify interconnections with the NCDOT
MS4.
DRAFT NCS000455 SWMP
Town of Oak Island
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d. The Town of Oak Island MS4 mapping does not 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) Stormwater Waste Water Quality
of Concern Load Allocation Recovery
Y/N Program Y/N
Statewide Mercury N N
The Statewide TMDL for mercury does not require any actions by the NPDES Stormwater Permittee
because most mercury in stormwater comes from atmospheric deposition,but the Town utilizes BMPs 5-
8 to provide information on water quality impairments in the Cape Fear River and Lumber River Basins.
DRAFT NCS000455 SWMP
Town of Oak Island
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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 Federal Listing
Group Status
Chelonia mydas Green Sea Turtle Reptile T
Eretmochelys Hawksbill Sea Turtle Reptile E
imbricata
Le idochel s kem ii Kem 's Ridley Sea Turtle Reptile E
Dermochelys Leatherback Sea Turtle Reptile E
coriacea
Caretta caretta Loggerhead Sea Turtle Reptile T
Charadrius melodus Piping Plover Bird E
Mycteria americana Wood stork Bird T
Trichechus manatus West Indian Manatee Mammal E
Calidris canutus rufa Red Knot Plant T
Thalictrum cooleyi Cooley's meadowrue Plant E
Lysimachia Plant T
as erulaefolia Rough-leaved loosestrife
Amaranthus pumilus Seabeach amaranth Plant T
Sarracenia oreophila Green Pitcher Plant E
Dionaea muscipula Venus Flytrap Plant ARS
ARS—At risk species, T—Threatened E—Endangered
3.7 Industrial Facility Discharges
The Town of Oak Island MS4 jurisdictional area does include industrial facilities which hold NPDES
Industrial Stormwater Permits, as determined from the NCDEQ Maps&Permit Data web page.
DRAFT NCS000455 SWMP
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Table 5: NPDES Stormwater Permitted Industrial Facilities
Permit Number Facility Name
NCG 150064 Brunswick County Airport-Oak Island
NCG 190075 The American Fish Co. and Metal Works
3.8 Non-Stormwater Discharges
The water quality impacts of non-stormwater discharges have been evaluated by the Town of Oak Island
as summarized in Table 6 below. The unpermitted non-stormwater flows listed as incidental do not
significantly impact water quality. The Town of Oak Island 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 Oak Island. Materials collected in the Town's wet street sweeper are disposed of at the waste
treatment plant. Street washing discharges are addressed under BMP 38 as part of the Pavement
Management Program in Part 10 of this SWMP.
Wash water associated with car washing that does not contain detergents or does not discharge directly
into the MS4 is considered incidental. However,these types of non-stormwater discharges that do
contain detergents have been evaluated by the Town of Oak Island to determine whether they may
significantly impact water quality. The Town has determined that it is unlikely that car washing
discharges will enter the MS4 as there is minimal curb and gutter throughout the Town unless it is on a
DOT road. Therefore, all car washing is considered incidental.
Table 6: Non-Stormwater Discharges
Non-Stormwater Discharge Water Quality Impacts
Air conditioning condensate Incidental
Artesian wells Incidental
Dechlorinated swimming pool discharge Possible
Diverted steam flows Incidental
Flows from fire-fighting activities Incidental
Footer drains Incidental
Irrigation runoff(landscape) Incidental
Rising round water Incidental
Springs Incidental
Street wash water Incidental Possible
Uncontaminated groundwater infiltration Incidental
Uncontaminated groundwater pumping Incidental
Uncontaminated potable water sources Incidental
Vehicle washing(residential/charity) Incidental
Water from crawls ace/basement pumps Incidental
Waterline/fire hydrant flushing Incidental
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3.9 Target Pollutants and Sources
In addition to those target pollutants identified above,the Town of Oak Island 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 Oak Island has evaluated schools,
homeowners and businesses as target audiences that are likely to have significant stormwater impacts.
Target pollutants include excess sediment from construction,nutrients, and fecal coliform from pet waste,
lawn and garden fertilizers, and septic system leakages.
Table 7: Summary of Target Pollutants and Sources
Target Pollutant(s) Likely Source(s)/Target Audiences) SWMP Program Addressing
Tar et Pollutant s /Audience s
Sewer/septic leaks pet waste/
Fecal Coliform DDE, O,PE
Commercial&Residential
Herbicides/ Misuse/overuse of chemicals/
Pesticides/Fertilizer Commercial,Industrial,Municipal O, PE
&Residential
pH Commercial,Industrial& DDE PE
Residential '
Mercury Commercial,Industrial,Municipal GH, O,PE,PI,PP
&Residential
Dechlorinated Swimming Residential-municipal pools/ DDE, O,PE,PP
Pools Residential&municipality
Discharge Commercial,Industrial,Municipal
PE
&Residential
Street, driveways, and commercial
Street Wash Water lot cleaning/Commercial& GH,PE
Municipality
Construction/Commercial
Sediment Industrial&Municipal
CSRC,GH,PCSR,PP
Illicit Discharges Commercial,Industrial,Municipal DDE, O,PE, PP
&Residential
Dumping Trash Commercial,Industrial,Municipal DDE, O,PE, PP
&Residential
Imp oer of Waste osal Commercial, Industrial, Municipal PE
&Residential
CSRC-Construction Site Runoff Control,DDE-Discharge Detection and Elimination, GH-Good Housekeeping,
O-Outreach,PCSR-Post Construction Site Runoff,PE-Public Education,PP-Public Participation.
DRAFT NCS000455 SWMP
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PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION
4.1 Organizational Structure
The Stormwater Department within the Town of Oak Island is the primary party responsible for the
administration of this SWMP. The Stormwater Administrator oversees the implementation and
compliance of this SWMP with seven additional stormwater dedicated staff members. The Stormwater
Administrator maintains compliance working cooperatively with the department heads from Public
Works,Water, and Wastewater. The Stormwater Administrator enforces the Town's post-construction
ordinances and the Stormwater Inspector performs inspections and water sampling. The Stormwater Crew
Leader responds to drainage concerns. Table 8 provides a summary of the responsible parties for specific
SWMP components.
Town Oak Island
Stormwater M54 Implementation
Town Manager
David Kelly
ork
Public W �0 Stormwater Waterwater
Scott Thornall Rick Patterson Trey Bevins Mark Moore
-..-
Scott Devlin
TB❑
DRAFT NCS000455 SWMP
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Table 8: Summary of Responsible Parties
SWMP Component Responsible Position Staff Name Department
Stormwater Program Stormwater Rick Patterson Stormwater
Administration Administrator
SWMP Management Stormwater Rick Patterson Stormwater
Administrator
Public Education& Stormwater Rick Patterson Stormwater
Outreach Administrator Scott Thornall Public Works
Tray Bevins Water
Mark Moore Wastewater
Public Involvement& Stormwater Rick Patterson Stormwater
Participation Administrator Scott Thornall Public Works
Tray Bevins Water
Mark Moore Wastewater
Illicit Discharge Stormwater Rick Patterson Stormwater
Detection& Administrator
Elimination Stormwater Crew Scott Devlin Stormwater
Leader
Construction Site Stormwater Inspector TBD Stormwater
Runoff Control
Post-Construction Stormwater Inspector TBD Stormwater
Stormwater
Management
Pollution Stormwater Rick Patterson Stormwater
Prevention/Good Administrator,Public Scott Thornall Public Works
Housekeeping for Works Director, Water Tray Bevins Water
Municipal Operations Dept. Superintendent, Mark Moore Wastewater
and Wastewater
Superintendent
Municipal Facilities Stormwater Rick Patterson Stormwater
Operation& Administrator
Maintenance Program Public Works Director Scott Thornall Public Works
Spill Response Program Stormwater Rick Patterson Stormwater
Administrator
Stormwater Crew Scott Devlin Stormwater
Leader
MS4 Operation& Stormwater Crew Scott Devlin Stormwater
Maintenance Program Leader
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Municipal SCM Stormwater Rick Patterson Stormwater
Operation& Administrator
Maintenance Program Public Works Director Scott Thornall Public Works
Pesticide,Herbicide& Public Works Director Scott Thornall Public Works
Fertilizer Management
Program
Vehicle&Equipment Stormwater Rick Patterson Stormwater
Cleaning Program Administrator
Stormwater Crew Scott Devlin Stormwater
Leader
Public Works Director Scott Thornall Public Works
Pavement Management Public Works Director Scott Thornall Public Works
Program
Total Maximum Daily Stormwater Rick Patterson Stormwater
Load(TMDL) Administrator Tray Bevins Water
Requirements Mark Moore Wastewater
4.2 Program Funding and Budget
In accordance with the issued permit,the Town of Oak Island shall maintain adequate funding and
staffing to implement and manage the provisions of the SWMP and comply with the requirements of the
NPDES MS4 Permit. The budget includes the permit administering and compliance fee,which is billed
by the Division annually.
Funding for the Town of Oak Island's Stormwater program occurs through the enterprise fund and plan
review fees which started in FY 2022. Stormwater staff additions from 2021 to present include a new
Stormwater Administrator, Stormwater Crew Leader, Stormwater Inspector, and Equipment Operators.
The Town of Oak Island's Stormwater budget including salaries for personal,has drastically increased
from$353,053 in fiscal year(FY)2016/17 to $1,173,800 for FY 2023/24. The Town of Oak Island has
several stormwater CIP projects funded and under construction including dune infiltration projects and a
multi-year Stormwater System Evaluation.
4.3 Shared Responsibility
The Town of Oak Island shares 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 Oak
Island 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 Oak nor the other entity fully performs the
permit obligation. Table 9 below summarizes who will be implementing the component,what the
DRAFT NCS000455 SWMP
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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 Legal
Permit Requirement Implementing Entity&Program Name Agreement
Y/N
3.3.2 Volunteer Opportunities Beach Preservation Society(Beach swaps and looking for N
illicit discharges)
The Marsh-mellow Group Society(Marsh/riparian swaps N
and looking for illicit discharges)
4.4 Co-Permittees
There are no other entities applying for co-permittee status under the NPDES MS4 permit number
NCS000455 for the Town of Oak Island. 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 N/A N/A N/A
4.5 Measurable Goals for Program Administration
The Town of Oak Island 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
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Table 11: Program Administration BMPs
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.
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 1.Draft SWMP 1.Permit Year 5 1.Yes/No
application and Draft SWMP no applicable to the
later than 180 days prior to permit proceeding 5 years
expiration. following permit re-
issuance.
2. Certify the stormwater 2.Permit Year 5 2.Date of permit renewal
permit renewal application submittal
application(Permit
renewal application form
and Draft SWMP for the
next 5-year permit cycle)
and submit to NCDEQ at
least 180 days prior to
permit expiration.
DRAFT NCS000455 SWMP
Town of Oak Island
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PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM
The Town of Oak Island 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
Oak Island 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/Yard Waste Residential, Commercial/Industrial, Schools,Municipal
Operations
Dechlorinated Swimming Pool
Residential, Commercial
Discharges
H Residential, Commercial/Industrial
Mercury Residential, Commercial/Industrial
Sediment Contractors, Commercial/Industrial
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 Oak Island 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
3. Distribute Educational Materials
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Table 13: Public Education and Outreach BMPs
Continue distribution of selected 1. Develop or identify 1.Annually-Permit 1. Yes/No
informational publications informational Years 1-2
published by North Carolina publication/handout
Coastal Federation,EPA, Sea for residential
Grant, Land Grant Universities, audiences
and NCDEQ to residential, 2. Develop or identify 2.Annually-Permit 2.Yes/No
commercial and industrial informational Years 3-5
audiences publication/handout
for commercial/
industrial audiences
3.Monitor distribution 3.Annually-Permit 3.Number of
of publications and Years 1-5 publications
document distributed
4. Social Media
The Town's existing website and 1. Develop a method 1. Permit Year 1 1. Yes/No
media pages will be used to reach to track social media
residential and commercial target posts and outreach
audiences and share educational 2. Post about sediment, 2. Permit Year 1 2. Yes/No
information related to stormwater and runoff nutrients as
issues pollutants
3. Post about mercury 3. Permit Year 2 3. Yes/No
target pollutant and
fish tissue advisory
4. Post about 4. Permit Year 3 4. Yes/No
dechlorinated
swimming pool
discharges
5. Post about 5. Permit Year 4 5 . Yes/No
controlling vehicle
leaks
6. Post about illicit
discharge and fecal 6. Permit Year 5 6. Yes/No
coliform
5. Maintain Presence at Town Events
Continue stormwater staff 1. Develop or identify 1. Annually-Permit 1. Yes/No
attendance at local events such as educational materials Years 1 -5
Earth Day to educate and answer for target audiences to
questions. Attend at least one distribute or present
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 18
Table 13: Public Education and Outreach BMPs
event per year and distribute 2. Staff a booth at one 2. Annually—Permit 2. Contact hours and
information to target residential event/festival chosen Years 1 —5 number of materials
and commercial audiences and present/distribute distributed
information
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
6. Stormwater Page on Town Website
Develop stormwater-specific 1. Establish 1. Permit Year 1 1. Yes/No
webpage with information stormwater webpage
regarding relevant ordinances, 2. Maintain the 2. Annually—Permit 2. Yes/No
post-construction requirements, webpage—update any Years 2-5
design standards, and resident- broken links,upload
specific resources/programs. new educational
Provide a link to the MS4 permit material,volunteer
and SWMP. The Town's General opportunities, and
Information Contact Form as well most recent SWMP
as the State"Stop Mud"hotline
will be advertised
Permit 3.2.5: Stormwater Helpline/Town's General Information Contact Form
Ref. Measures for a stormwater helpline for the purpose of public education and outreach.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
7. Stormwater Hotline
A helpline will be maintained for 1. Establish and 1. Permit Year 1 1. Yes/No
citizens to report stormwater maintain a stormwater
issues by utilizing the Town's General Information
General Information Contact Contact Form.
Form. The Contact Form will be 2. Establish a tracking 2. Permit Years 2-5 2. Yes/No
listed on the Town's main menu mechanism to
and on the Stormwater web page document the number
of stormwater contacts
received
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 19
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 Oak Island will manage, implement and report the following public involvement and
participation BMPs.
Table 14: Public Involvement and Participation BMPs
Permit 3.3.1: Public Input
Ref. Mechanisms for public involvement that provide for input on stormwater issues and the stormwater program.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
8. Workshops
1. Contractor 1. Permit Year 1-5 1.Number of meetings
educational dinner and participates
meetings
2. Earth Day booth 2. Permit Year 1-5 2.Number of meetings
and participates
3. Arbor Day booth 3. Permit Year 1-5 3.Number of meetings
and participates
9. Stormwater Page on Town Website
Develop stormwater-specific 1. Establish 1. Permit Year 1 1. Yes/No
webpage with information stormwater webpage
regarding relevant ordinances, 2. Maintain the 2. Annually—Permit 2. Yes/No
post-construction requirements, webpage—update any Years 2-5
design standards, and resident- broken links,upload
specific resources/programs. The new educational
Town's General Information material, and volunteer
Contact Form will be advertised opportunities
for public input concerning
stormwater
10. Town Council Meetings
Town staff will bring an annual 1. Schedule an annual 1. Annually—Permit 1. Yes/No
stormwater agenda item for public stormwater agenda Years 1-5, following
input to Town Council Meetings item for the Town submission of annual
following the annual self- Council meeting to self-assessment
assessment allow for public input
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 20
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
11. Promote Volunteer Opportunities
Plan and implement one Town- 1. Develop or identify 1. Annually—Permit 1. Yes/No
sponsored volunteer opportunity one volunteer activity Years 1 —5
(in person or virtually) such as that addresses a target
beach sweeps per year. Continue pollutant or pollutants
to work with volunteer 2. Help coordinate 2. Annually—Permit 2.Number of events,
organizations and help promote and/or host the activity Years 1 —5 participants, and how
their events many bags of waste
collected(if
applicable)
3. Promote volunteer 3. Annually—Permit 3. Yes/No
opportunities on Town Years 1 —5
website and through
social media
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 21
PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM
The Town of Oak Island 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
12. Updates to MS4 Map
Continue to maintain the MS4 1. Maintain a current 1. Annually—Permit 1. Yes/No
map with information including map showing major Years 1 —5
stormwater conveyances, outfalls, outfalls and receiving
and receiving waters. Update the streams
map annually with newly 2. Complete 2. Permit Years 2- 3 2. Yes/No
identified or constructed stormwater system
stormwater infrastructure. inventory identifying
existing pipe
condition, sizes, and
flow directions.
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
13. Maintain IDDE Legal Authority
Review and maintain the Town's 1. Maintain and review 1. Annually—Permit 1. Yes/No
stormwater ordinance(Article IV IDDE ordinance Years 1 —5
of Ordinance No. 18-701)
provides legal authority to
prohibit, detect,and eliminate
illicit connections and discharges,
illegal dumping, and spills into
the MS4, including enforcement
procedures and actions
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 22
Table 15: Illicit Discharge Detection and Elimination BMPs
Permit 3.4.3: IDDE Plan
Ref. Measures to maintain and implement a written IDDE Plan to detect and address illicit discharges, illegal
dumping and any non-stormwater discharges identified as significant contributors of pollutants to the MS4.
The plan shall provide standard procedures and documentation to:
a) Locate priority areas likely to have illicit discharges,
b) Conduct routine dry weather outfall inspections,
c) Identify illicit discharges and trace sources,
d) Eliminate the source(s)of an illicit discharge, and
e) Evaluate and assess the IDDE Program.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
14. IDDE Plan Document
Update the written IDDE plan to 1. Develop criteria for 1. Permit Year 1 1. Yes/No
include inspection requirements, identifying chronic
priority areas and inspection violators and"hot
frequencies, illicit discharge spots"by owner/
identification and tracking SOPS, operator and
methods to resolve discharges and contractors
follow-up, and evaluation and 2. Identify priority 2. Permit Year 1 2. Yes/No
assessment criteria. Identify areas for inspections
responsible parties for performing 3. Revise and maintain 3. Permit Year 1 3. Yes/No
each portion of the plan and date a standard operating
the plan procedure(SOP)for
investigation of
potential illicit
discharges, illicit
connections, and
-illegal dumping
4. Create the 4. Permit Year 1 4. Yes/No
comprehensive
document that includes
the above and existing
SOPS as well as
-inspection frequencies
5. Identify responsible 5. Permit Year 1 5. Yes/No
parties for each portion
of the plan and date
the plan
15. Outfall Inspections
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 23
Table 15: Illicit Discharge Detection and Elimination BMPs
Perform regular dry weather(no 1. Perform inspections 1. Annually—Permit 1.Number and percent
rain in previous 72 hours)outfall according to IDDE Years 1 —5 of outfalls inspected
inspections to proactively identify plan (%/#completed)
illicit discharges and illicit
connections. As there is only one
major outfall within the Town and
many are underwater during the
day, determine a schedule for
inspections of all outfalls
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.
A B D
BMP C
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
16. Annual IDDE Program Evaluation
A tracking system for observed 1. Track the number of 1. Continuously 1. Total number of
IDDE violations and follow-on IDDE investigations IDDE investigations
actions will be developed and performed
tracked to identify"hot-spot" 2. Review of IDDE 2. Annually—Permit 2. Yes/No
areas, chronic violators, and tracking reports for Years 1-5
recurring issues. Issues will be identification of
tracked by owner/operator as chronic violators,
well as location.An annual issues, and/or"hot-
evaluation of IDDE Plan spot"areas
implementation and effectiveness
and review to identify chronic
violators will be performed
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
trainingevent shall be documented, including the a enda/materials, date, and number of staff participating.
A B D
BMP C
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
17. Staff Training
Develop a program to educate 1. Identify or 1. Permit Year 1 1. Yes/No
Town staff of indicators of develop staff training
potential illicit program for public
discharges/connections and works employees
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 24
Table 15: Illicit Discharge Detection and Elimination BMPs
illegal dumping and the 2. Train staff with 2. Annually—Permit 2. Training date and
appropriate avenues through IDDE responsibilities Years 1 —5 and during number of attendees
which to report suspected illicit or the potential to new staff on-boarding
discharge. Train municipal staff discover an illicit
who receive calls from the public discharge during
on the protocols for referral and routine work activities
tracking of construction site
runoff control complaints vs.
illicit discharge reporting
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
personnel.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
18. Stormwater Pages on Town Website
Develop stormwater-specific 1. Maintain the 1. Annually—Permit 1. Yes/No
webpage(s)with information webpage—update any Years 2-5
regarding relevant ordinances, broken links,upload
post-construction requirements, new educational
design standards, and resident- material and volunteer
specific resources/programs. opportunities,upload
Provide a link to the MS4 permit most recent SWMP
and SWMP. The Town's General
Information Contact Form as well
as the State"Stop Mud"hotline
will be advertised
19. Stormwater Hotline
A helpline will be maintained for 2. Establish a tracking 1. Annually—Permit 1.Number and type of
citizens to report stormwater mechanism to Years 1-5 calls
issues by utilizing the Town's document the number
General Information Contact of stormwater IDDE
Form. The Contact Form will be related contacts
listed on the Town's main menu received
and on the stormwater web page
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 25
PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM
In accordance with 15A NCAC 021-1 .0153,the Town of Oak Island 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 - Town of Oak Island 15A NCAC Chapter 04, Town of Oak
3.5.4 Delegated SPCA Program* NCDEQ Approved Delegation Island
* The local delegate/regulatory mechanism(s) can be found at:
https:Hlibrary.municode.com/nc/oak_island/codes/code_of ordinances
The Town of Oak Island also implements the following BMPs to meet NPDES MS4 Permit requirements.
Table 17: Construction Site Runoff Control BMPs
Permit 3.5.6: Public Input
Ref. Measures to provide and promote a means for the public to notify the appropriate authorities of observed
erosion and sedimentation problems.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
20. Municipal Staff Training
Train municipal staff who receive 1. Train stormwater 1. Annually—Permit 1.Number of staff
calls from the public on the staff on proper Years 1 —5 and during trained and dates
protocols for referral and tracking handling of new staff on-boarding
of construction site runoff control construction site runoff
complaints. control complaints vs.
illicit discharge
reporting
21. Stormwater Hotline and Alternative Reporting Methods
Provide and promote the Town's 1. Document the 1. Annually—Permit 1.Number and type of
General Information Contact number and type of Years 1-5 calls
Form as well as the State"Stop calls and follow u
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 26
Table 17: Construction Site Runoff Control BMPs
Mud"hotline to provide a method 2. Document the 2. Annually—Permit 2.Number of
to notify the appropriate number of violations Years 1-5 violations referred
authorities of observed erosion identified and referred
and sedimentation problems to NCDEQ
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 quali .
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
22. Establish and Maintain Legal Authority for Construction Site Waste Management and Education
Develop and implement an 1.Pass code/ 1. Permit Year 2 1. Yes/No
ordinance to require construction ordinance
site operators to control waste and 2.Add fact sheets to 2. Permit Year 2 2. Yes/No
provide educational activities website
/materials 3.Distribute fact sheet 3. Continuously, after 3.Number of fact
at education events/ fact sheets are sheets distributed
meetings developed
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 27
PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM
This SWMP identifies the minimum elements to develop, implement and enforce a program to address
stormwater runoff from new development and redevelopment projects that disturb greater than or equal to
one acre, including projects less than one acre that are part of a larger common plan of development or
sale,that are located within the Town of Oak Island 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 Oak Island implements the following
State post-construction program requirements,which satisfy the NPDES Phase II MS4 post-construction
site runoff control requirements as Qualifying Alternative Programs(QAPs) in the MS4 area(s)where
they are implemented.
Table 18: Qualifying Alternative Program(s)for Post-Construction Site Runoff Control Program
State QAP Name State Requirements Local Ordinance/Regulatory
Mechanism Reference
None N/A N/A
The Town of Oak Island has existing requirements other than Qualifying Alternative Program(s)for
implementation of the NPDES Phase II MS4 post-construction program requirements. These existing
requirements are codified in local ordinance(s), and implementation is further defined in guidance,
manuals and/or standard operating procedure(s) as summarized in Table 19 below.
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 28
Table 19: Summary of Existing Post-Construction Program Elements
Permit Requirements for Municipal Ordinance/Code Reference(s) Date Adopted
Plan Review and Approval and/or Document Title(s)
3.6.2 a Authority Sec. 18-652 5/11/2021
3.6.3(a) & 15A NCAC 02H.0153(c) Sec 18-655 7/9/2019
Federal, State&Local Projects
3.6.3 b Plan Review Sec. 18-661 3/10/2009
3.6.3 c O&M Agreement Sec. 18-674 3/10/2009
3.6.3 d O&M Plan Sec. 18-674 3/10/2009
3.6.3(e)Deed Sec. 18-668 (high density) 3/10/2009
Restrictions/Covenants Sec. 18-669 low density) 7/9/2019
3.6.3(f)Access Easements Sec. 10.49 10/9/2018
Sec. 18-712 8/13/2002
Permit Requirements for Municipal Ordinance/Code Reference(s) Date Adopted
Inspections and Enforcement and/or Document Title(s)
3.6.2 b Documentation Sec. 18-673 3/10/2009
3.6.2 c Right of Entry Sec. 18-675 3/10/2009
3.6.4 a Pre-CO Inspections Sec. 18-663 7/9/2019
3.6.4 b Compliance with Plans Sec. 18-670 3/10/2009
3.6.4 c Annual SCM Inspections Sec. 18-673 3/10/2009
3.6.4 d Low Density Inspections Sec. 18-667 3/10/2009
3.6.4(e) Qualified Professional Sec. 18-663 7/9/2009
Permit Requirements for Municipal Ordinance/Code Reference(s) Date Adopted
Fecal Coliform Reduction and/or Document Title(s)
3.6.6 a Pet Waste Sec 4-9 1/14/2014
3.6.6(b)On-Site Domestic Sec 30-35 4/10/2001
Wastewater Treatment
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 3.6.5(a),3.6.5(b), and 4.1.3: Minimum Post-Construction Reporting Requirements
Ref. Measures to document activities over the course of the fiscal year(July 1 —June 30)including appropriate
information to accurately describe rogress, status, and results.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
23. Standard Reporting
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 29
Table 20: Post Construction Site Runoff Control BMPs
Implement standardized tracking, 1. Track number of 1. Continuously 1.Number of plan
documentation, inspections and low density and high Permit Years 1-5 reviews performed for
reporting mechanisms to compile density plan reviews low density and high
appropriate data for the annual performed. density.
self-assessment process. Data 2. Track number of 2. Continuously 2.Number of plan
shall be provided for each Post- low density and high Permit Years 1-5 approvals issued for
Construction/Qualifying density plans low density and high
Alternative Program being approved. density.
implemented as listed in Tables 3. Maintain a current 3. Continuously 3. Summary of number
18 and 19. inventory of low Permit Years 1-5 and type of SCMs
density projects and added to the inventory;
constructed SCMs and number and
including SCM type or acreage of low density
low density acreage, projects constructed.
location and last
-inspection date.
4. Track number of 4. Continuously 4.Number of SCM
SCM inspections Permit Years 1-5 inspections.
erformed.
5. Track number of 5. Continuously 5.Number of low
low density Permit Years 1-5 density projects
-inspections performed. inspected.
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
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
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 30
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
This permit requirement is fully met by the existing post-construction program, see references provided in
Table 19
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 post-construction program, see references provided in
Table 19
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
24. Inspections of Low-Density Projects
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 31
Table 20: Post Construction Site Runoff Control BMPs
Revise existing ordinance to 1. Revise code if 1. Permit Year 1 1. Yes/No
specifically require inspection of needed to require
low-density projects and develop inspection of Iow-
an inventory of low-density density projects at
projects to be utilized for least once during the
inspections and tracking permit term by a
-qualified professional
2. Establish list of 2. Permit Year 1, and 2. Yes/No
existing low-density annually thereafter
projects and update
when new projects are
-approved
3. Conduct inspection 3. Permit Year 5 3.Number and percent
of 10%of low-density inspected(%/#
projects each year and completed)
document any follow-
up
Permit 3.6.6: Fecal Coliform Reduction
Ref. Measures to control,to the maximum extent practicable, sources of fecal coliform per 15A NCAC 02H
.1017(7). At a minimum,the program shall include: (a)A pet waste management component,which may be
achieved by revising an existing litter ordinance, and(b)An on-site domestic wastewater treatment system
component, if applicable,which may be coordinated with local county health department,to ensure proper
operation and maintenance of such systems.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
This permit requirement is fully met by the existing post-construction program, see references provided in
Table 19
DRAFT NCS000455 SWMP
Town of Oak Island
8/9/23
Page 32
PART 10:POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS
This SWMP provides a comprehensive pollution prevention and good housekeeping strategy for the
Town of Oak Island 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 Oak Island 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 implementing pollution prevention
and good ousekeeping practices.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
25. Inventory of Municipal Facilities
Maintain an up-to-date inventory of 1.Review inventory 1.Permit Years 1, 3, 1.Yes/No
municipal facilities with potential to and update when and 5
generate polluted runoff and review facilities are added or
every two years closed
26. Facility Inspections
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Table 21: Pollution Prevention and Good Housekeeping BMPs
Establish inspection frequencies and 1.Establish a 1.Permit Year 1 1.Yes/No
inspect Town-owned facilities with SOP/plan for facility
the potential to pollute stormwater inspections, including
an inspection schedule,
inspection report
documentation, and
tracking system
2.Perform inspections 2.Annually—Permit 2.Total number of
according to the Years 1-5 inspections
SOP/plan
3.Track corrective 3.Annually—Permit 3.Yes/No
actions and document Years 1-5
resolutions when
problems are identified
27. Staff Training
Develop or identify a staff training 1.Identify or 1.Permit Year 1 1.Yes/No
program and provide to public works develop staff training
department employees. Ensure program for public
training targets litter/yard waste, works employees
nitrogen, sediment, car washing, 2.Determine 2.Permit Year 1 2.Yes/No
fertilizer/pesticides/herbicides, frequency required for
illicit discharges, and spill response staff training and
procedures document
3.Train staff with 3.Annually—Permit 3. Training date and
PPGH responsibilities Years 1 —5 and during number of attendees
new staff on-boarding
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 procedures.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
28. Inventory of Facilities with Spill Potential
Maintain a list of Town facilities and 1.Review and update 1. Permit Years 1, 3, 1. Yes/No
operations storing materials that list of Town facilities and 5
would be a pollutant if spilled and and operations with
introduced to the stormwater system spill potential when
and classify by hazard and quantity. facilities or operations
Review every two years are changed
29. Spill Response Standard Operating Procedures (SOP)
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Table 21: Pollution Prevention and Good Housekeeping BMPs
Maintain spill response procedures 1. Train staff at 1. Annually—Permit 1. Training date and
as part of the PPGH Plan and train facilities with potential Years 1 —5 and during number of attendees
staff on procedures for high hazard spills new staff on-boarding
and staff responding to
vehicular accidents in
first response actions
and reporting
procedures
2.Annually review 2. Annually—Permit 2. Yes/No
and update spill Years 1-5
response SOP to
identify new polluting
materials or processes
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
30. MS4 System Operation and Maintenance Plan
Maintain and update the plan for 1. Review the 1. Permit Years 1, 3, 1. Yes/No
MS4 system maintenance,requiring inspection SOPS and and 5
regular inspections and maintenance. revise as necessary
Track the number of inspections 2. Perform regular 2. Annually—Permit 2.Number of
performed and citizen reports inspections in Years 1-5 inspections performed
addressed. Review every two years accordance with the
SOPS
3. Verify,prioritize, 3. Annually—Permit 3. Yes/No
and track maintenance Years 1-5
activities identified by
inspections or citizen
reports
4. Develop an 4. Permit Year 1 4. Yes/No
inspection and
maintenance tracking
system to be used in
accordance with the
SOP and to identify
"hot spot"locations
for system
maintenance
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Table 21: Pollution Prevention and Good Housekeeping BMPs
Permit 3.7.4: Municipal SCM Operation and Maintenance Program
Ref. Measures to manage municipally-owned, operated, and/or maintained structural stormwater control measures
(SCMs)that are installed for compliance with the permittee's post-construction program. The permittee shall
maintain a current inventory of SCMs,perform SCM inspections and maintenance, and shall establish specific
fre uencies, schedules, and documentation.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
31. Inventory of Municipal Structural SCMs
Maintain an inventory of 1. Review and update 1. Permit Years 1, 3, 1. Yes/No
municipally owned structural SCMs. of Town-owned and 5
Review every two years SCMs are constructed
32. SCM Inspections and Maintenance
Perform and document regular 1. Obtain/maintain NC 1. Continuously 1.Number of staff
inspection and maintenance of SCM Inspections and members with active
municipally owned structural SCMs Maintenance certification
are installed according to the O&M Certification for
plans appropriate personnel
2. Perform inspections 2.Annually—Permit 2.Number of Town-
and maintenance Years 1-5 owned SCMs
according to O&M inspected
plan for new SCM
Permit 3.7.5: Pesticide,Herbicide and Fertilizer Management Program
Ref. Measures to minimize water quality impacts from the use of landscape chemicals. The permittee shall provide
routine pollution prevention and chemical use, storage and handling training,and shall ensure compliance with
permits and applicator certifications.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
33. Pesticide Applicator Training
Continue to require and track 1. Maintain and update 1. Annually—Permit 1. Yes/No
applicator certifications for a list of certified Town Years 1-5
appropriate Town personnel staff
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.
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Table 21: Pollution Prevention and Good Housekeeping BMPs
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
34. Vehicle and Equipment Maintenance Facility Inspection
Continue to perform routine 1. Perform inspections 1. Annually—Permit 1. Yes/N
inspections as part of general facility according to the Years 1-5
inspections to ensure that vehicle SOP/plan
and equipment facilities are
following proper procedures to
minimize water quality impacts from
vehicle and equipment maintenance
and washing
Permit 3.7.7: Pavement Management Program
Ref. Measures to reduce pollutants in stormwater runoff from municipally-owned streets,roads, and parking lots
within the permittee's corporate limits. The permittee shall implement measures to control litter, leaves, debris,
particulate and fluid pollutants associated with vehicles, and establish specific frequencies, schedules, and
documentation.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule for Annual Reporting
Implementation Metric
35. Street Sweeping
Develop a street sweeping SOP 1. Develop a SOP, 1. Permit Year 1 1.Yes/No
following a regular schedule to including a schedule
reduce pollutants from Town-owned and plan to document
and maintained streets 2. Implement SOP and 2. Annually—Permit 2. Total number of
documentation Years 2-5 street miles swept
36. Leaf Collection
Continue to perform periodic 1. Develop a SOP, 1. Permit Year 1 1.Yes/No
collection of leaves from residential including a schedule
and public areas to reduce pollutants and plan to document
and clogging of storm system inlets 2. Implement SOP and 2. Annually—Permit 2. Weight or volume
documentation Years 2-5 of leaves collected
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37. Vehicle Spill Cleanup
An organized vehicle spill cleanup 1.Annually review 1. Annually—Permit 1. Yes/No
response to prevent pollutants from and update spill Years 1-5
vehicular accidents from entering the response SOP to
storm drain system identify new polluting
materials or processes
2. Provide public 2. Permit Year 5 2. Yes/No
education about
stopping vehicle leaks
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