NCS000450_Carrboro Draft Final SWMP_20211004

Stormwater Management Plan
Town of Carrboro
NCS000450

10/4/2021

Table of Contents

PART 1: INTRODUCTION ........................................................................................................................ 1

PART 2: CERTIFICATION ........................................................................................................................ 2

PART 3: MS4 INFORMATION .................................................................................................................. 3
3.1 Permitted MS4 Area ..................................................................................................................... 3
3.2 Existing MS4 Mapping ................................................................................................................. 4
3.3 Receiving Waters .......................................................................................................................... 5
3.4 MS4 Interconnection ..................................................................................................................... 6
3.5 Total Maximum Daily Loads (TMDLs) ....................................................................................... 7
3.6 Endangered and Threatened Species and Critical Habitat ............................................................ 7
3.7 Industrial Facility Discharges ....................................................................................................... 8
3.8 Non-Stormwater Discharges ......................................................................................................... 8
3.9 Target Pollutants and Sources ..................................................................................................... 10

PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION ................................... 12
4.1 Organizational Structure ............................................................................................................. 12
4.2 Program Funding and Budget ..................................................................................................... 16
4.3 Shared Responsibility ................................................................................................................. 17
4.4 Co-Permittees .............................................................................................................................. 18
4.5 Measurable Goals for Program Administration .......................................................................... 18

PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM ......................................................... 21

PART 6: PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM ........................................... 26

PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM .............................. 28

PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM ................................................... 34

PART 9: POST-CONSTRUCTION SITE RUNOFF CONTROL PROGRAM ........................................ 36

PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS ...................... 43

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

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
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PART 1: INTRODUCTION

The purpose of this Stormwater Management Plan (SWMP) is to establish and define the means by which
the Town of Carrboro 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 Carrboro 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 NCS000450, 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 Carrboro and located
within the corporate limits of the Town of Carrboro.

In preparing this SWMP, the Town of Carrboro 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.

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Town of Carrboro
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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 de signed 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.

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Town of Carrboro
10/4/2021
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PART 3: MS4 INFORMATION

3.1 Permitted MS4 Area
This SWMP applies throughout the corporate limits of the Town of Carrboro, including all regulated
activities associated with the discharge of stormwater from the MS4. The map below shows the corporate
limits of Town of Carrboro as of the date of this document.

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Town of Carrboro
10/4/2021
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3.2 Existing MS4 Mapping

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Town of Carrboro
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The current MS4 mapping includes these layers: inlets, outlets (outfalls), junctions/manholes, clean outs,
pipes, culverts, open channels, and SCMs. Attributes are provided for owner (some non-Town
owned/maintained assets are mapped) sizes, materials, inverts, and more. Carrboro footnote: all drainage
features with drainage areas > 50 acres are regulated streams and not considered to be part of the MS4 in
Carrboro. (Carrboro regulates ephemeral streams with > 5 acres of drainage areas in addition to
intermittent and perennial streams.) Major outfalls are therefore defined in the above table based on pipe
size alone. Note that for illicit discharge purposes, Carrboro has also included smaller pipe sizes as
priority outfalls for illicit discharge purpose. With the exception of the Town’s Public Works (with a
Vehicle Maintenance Area general permit), the one industrial site in Carrboro’s municipal limits that
meets the definition provided above is a cement plant on State (UNC) property that is regulated through
UNC’s MS4 and a State industrial permit.

Table 1: Summary of Current MS4 Mapping
Percent of MS4 Area Mapped 100 %
No. of Major Outfalls* Mapped 18 total

*An outfall is a point where the MS4 discharges from a pipe or other conveyance (e.g. a ditch) directly
into surface waters. Major outfalls are required to be mapped to meet permit requirements. A major
outfall is a 36-inch diameter pipe or discharge from a drainage area > 50-acres; and for industrial zoned
areas a 12-inch diameter pipe or a drainage area > 2-acres.

3.3 Receiving Waters
The Town of Carrboro MS4 is located within the Cape Fear 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

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Town of Carrboro
10/4/2021
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Table 2: Summary of MS4 Receiving Waters
Receiving Water Name Stream Index /
AU Number
Water
Quality
Classification
303(d) Listed Parameter(s)
of Interest; Integrated Report
Classification; Listing Date
Within MS4
Bolin Creek 16-41-1-15-1-
(0.5)a
WS-V-NSW Mercury/fish tissue; 4t; 2012 (Jordan
Lake)
Bolin Creek 16-41-1-15-1-
(0.5)b
WS-V-NSW Mercury/fish tissue; 4t; 2012;
Benthos/aquatic life; 5; 2009; (Jordan
Lake)
Morgan Creek 16-41-2-(5) WS-V; NSW (Jordan Lake)
Morgan Creek 16-41-2-(1) WS-II;
HQW;NSW
Mercury/fish tissue; 4t; 2012 (Jordan
Lake)
Morgan Creek
(University Lake)
16-41-2-(1.5) WS-II;
HQW;NSW
Chlorophyll a, nitrogen, phosphorus;
Mercury/fish tissue; 4t; 2012
(Jordan Lake)
Jones Creek 16-41-1-15-1-1 WS-V; NSW (Jordan Lake)
Buckhorn Branch 16-41-1-15-1-1-1 WS-V; NSW (Jordan Lake)
Jolly Branch 16-41-1-15-1-2 WS-V; NSW (Jordan Lake)
Tanbark Branch 16-41-1-15-1-3 WS-V; NSW (Jordan Lake)
Immediately Downstream
of MS4

Bolin Creek 16-41-1-15-1-(4) WS-IV-NSW Mercury/fish tissue; 4t; 2012;
Benthos/aquatic life; 5 ; (Jordan Lake)
Morgan Creek 16-41-2-(5.5)a* WS-IV-NSW Mercury/fish tissue; 4t; 2012 (Jordan
Lake)
Note for all Jordan Lake listings: the parameters of interest include Chlorophyll a, nitrogen, phosphorus,
total suspended solids, turbidity, and mercury (fish tissue). Note that the source of mercury is atmospheric
emissions; the MS4 program therefore does not identify it as a priority pollutant.
*The next most downstream segment below the shown AU of Morgan Creek is also listed for
benthos/aquatic life.

3.4 MS4 Interconnection
The Town of Carrboro MS4 is interconnected with another regulated MS4 and directly receives
stormwater from the Town of Chapel Hill MS4. The number of interconnections entering the Town of
Carrboro MS4 from the Town of Chapel Hill is 5, as determined by GIS analysis of MS4 data

The Town of Carrboro MS4 is interconnected with another regulated MS4 and directly discharges
stormwater into the Town of Chapel Hill MS4. The number of interconnections leaving the Town of
Carrboro MS4 to the Town of Chapel Hill is 6, as determined by GIS analysis of MS4 data.

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Town of Carrboro
10/4/2021
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The MS4 does interconnect with the statewide NCDOT MS4 and includes:

a. The interconnection is receiving stormwater from the NCDOT TS4. The number of
interconnections is unknown.

b. The interconnection is discharging stormwater into the NCDOT TS4. The number of
interconnections is unknown.

c. The Carrboro MS4 mapping does not identify interconnections with the NCDOT TS4.

d. The Carrboro MS4 mapping does not include NCDOT TS4 outfalls.

3.5 Total Maximum Daily Loads (TMDLs)
The TMDL(s) listed in Table 3 below have been approved within the MS4 area, as determined by the map
and list provided on the NCDEQ Modeling & Assessment Unit web page. The table also indicates
whether the approved TMDL has a specific stormwater Waste Load Allocation (WLA) for any watershed
directly receiving discharges from the permitted MS4, and whether a Water Quality Recovery Program
has been implemented to address the WLA.

Table 3: Summary of Approved TMDLs
Water Body Name TMDL Pollutant(s) of Concern Stormwater
Waste
Load
Allocation
(Y/N)
Water
Quality
Recovery
Program
(Y/N)
Jordan Lake Chlorophyll a, nitrogen,
phosphorus, total suspended
solids, turbidity
N N

While the TMDL for chlorophyll a in Jordan Lake has not yet resulted in load allocations, a nitrogen load
reduction goal of 35% and phosphorus load reduction goal of 5% for the Upper New Hope Arm has been
identified. The Town has included post construction requirements for nitrogen and phosphorus to prevent
increases since 2007 under a state Nutrient Sensitive Waters Strategy. The Jordan Lake TMDL was
amended in 2014, and includes a TMDL for turbidity in the Upper New Hope arm, but, associated load
reductions have not been assigned.

Carrboro has developed regulations and completed annual reporting to comply with the Jordan Lake
Rules and will continue to track ongoing implementation of the Jordan Lake Rules during this permit
cycle. Carrboro also is a participant in the Bolin Creek Watershed Restoration Team, supported the
development of a 9-step watershed restoration plan for Bolin Creek under the Use Restoration Waters
program, and will continue to pursue watershed restoration activities as presented in the plan.

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Town of Carrboro
10/4/2021
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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 Group Federal Listing Status
Fusconaia masoni Atlantic pigtoe Clam Proposed threatened
At Risk Species (ARS)
Lasmigona subviridis Green floater Clam Under review

3.7 Industrial Facility Discharges
The Town of Carrboro MS4 jurisdictional area includes the following industrial facilities which hold
NPDES Industrial Stormwater Permits, as determined from the NCDEQ Maps & Permits Data web page.

Table 5: NPDES Stormwater Permitted Industrial Facilities
Permit Number Facility Name
NCG080676 Town of Carrboro-Public Works
NCG140126 Southern Equipment Company-Chapel Hill Plant #16

Note that NCG210452 (JV Brockwell Trucking) is in Carrboro’s Planning Jurisdiction (Transition Area)
and NCG020749 (Tony Merritt Gravel Pit) is in the ETJ, but neither is in the municipal limits.

3.8 Non-Stormwater Discharges
The water quality impacts of non-stormwater discharges have been evaluated by the Town of Carrboro as
summarized in Table 6 below. The unpermitted non-stormwater flows listed as incidental do not
significantly impact water quality.

Street washing discharges are addressed under the Pavement Management Program in Part 10 of this
SWMP. Street cleaning is performed with a vacuum street sweeping process that removes excess
debris/sediment/solids and reduces pollutants associated with street washing. The Division has not
required that other non-stormwater flows be specifically controlled by the Town of Carrboro.

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Town of Carrboro
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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 or do discharge to the MS4 have been evaluated by the Town of Carrboro to determine
whether they may significantly impact water quality. With some residential/charity/community car
washes in Carrboro, some of the discharged soapy water may make its way to a storm drain, however in
many cases of the runoff either flows to a vegetated area or there is some kind of containment or at least a
means of blocking the suds from entering the drain, but allowing the water to flow through. Also, the
Town of Carrboro is aware that mobile car washing is a significant source of metals. Car washing has
therefore been determined to be a possible cause of water quality impact and will be addressed through
public education efforts as well as enforcement on reoccurring situations. Water from water lines and fire
hydrants is also a possible source if not dechlorinated. HVAC cleaning operations, and particularly
commercial and higher density sites with directly connected drains, are typically performed with caustic
chemicals and pose a pollution risk.

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Town of Carrboro
10/4/2021
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Table 6: Non-Stormwater Discharges
Non-Stormwater Discharge Water Quality Impacts
Water line and fire hydrant flushing Possible
Landscape irrigation Incidental
Diverted stream flows Incidental
Rising groundwater Incidental
Uncontaminated groundwater infiltration Incidental
Uncontaminated pumped groundwater Incidental
Uncontaminated potable water sources Incidental
Foundation drains Incidental
Air conditioning condensate Incidental
Irrigation waters Incidental
Springs Incidental
Water from crawl space pumps Incidental
Footing drains Incidental
Lawn watering Incidental
Residential and charity car washing Possible
Flows from riparian habitats and wetlands Incidental
Dechlorinated swimming pool discharges Incidental
Street wash water Incidental
Flows from firefighting activities Incidental
HVAC cleaning Possible

3.9 Target Pollutants and Sources
In addition to those target discharges identified above, the Town of Carrboro is aware of other significant
water quality issues and pollutants within the permitted MS4 area. These include sediment, nitrogen,
phosphorus, bacteria such as fecal coliform and trash/litter. These acknowledgements come from daily
inspections of the municipality and public participation events such as annual cleanups. Sediment is
attributed to development and construction as well as landscaping practices and gullying and stream bank
erosion. Carrboro’s soils are inherently subject to erosion.

While litter is a general issue, there are “hot spots” near a relatively small subset of neighborhoods and
commercial developments. Pet wastes, leaking sewers, sanitary sewer overflows, and improper leaf
collection practices by residents have been a contributor of nitrogen, phosphorus, and bacteria in the
Town of Carrboro. The Town of Carrboro has implemented public participation and education as
discussed in the following sections of this plan, and installed pet waste stations throughout Carrboro to
educate residents about the importance of picking up their pet’s waste. The Town of Carrboro will
continue to educate the public and enforce, as needed, for these target pollutants and sources.

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Town of Carrboro
10/4/2021
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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 Carrboro has evaluated schools,
homeowners and businesses as target audiences that are likely to have significant stormwater impacts.

There are three elementary schools, a middle school, and a high school in Carrboro. These schools are a
priority audience because of the degree of development with these large sites, the ability to reach a large
portion of the population through the schools, and the shared public purpose. One (Carrboro Elementary,
with the smallest footprint) was built before the Town had adopted a Land Use Ordinance; it has no
required stormwater management facilities. Erosion and nutrients are priority pollutants at these sites;
stormwater volume reduction is also a point of emphasis, although more difficult to regulate. Because of
the large amount of Carrboro dedicated to residential land use, homeowners are also a priority audience,
with all target pollutants being relevant. Businesses are an important audience especially in areas with
commercial development near downtown and in several largely retail and office/institutional land uses.
All target pollutants are relevant, with an emphasis on volume and associated erosion and nutrients.

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)
Sediment Construction, landscaping, channels,
streams;
Developers, landscapers, homeowners
Construction Site Runoff Control
Illicit Discharge Detection and
Elimination
Public Education and Outreach
Nitrogen, phosphorus Leaking sewer, septic, fertilizer, leaf
collection, pet wastes; OWASA,
homeowners, landscapers
Illicit Discharge Detection and
Elimination
Public Education and Outreach
Fecal coliform Leaking sewer, septic, pet waste;
OWASA, homeowners, landscapers
Illicit Discharge Detection and
Elimination
Public Education and Outreach
Illicit discharges Residential, utility, commercial;
OWASA, homeowners, businesses
Illicit Discharge Detection and
Elimination
Public Education and Outreach
Litter, illegal dumping Residential, commercial;
Homeowners, businesses,
Public Education and Outreach
Public Participation
Pollution Prevention and Good
Housekeeping
Yard waste Residential, commercial;
Homeowners, landscapers, businesses
Public Education and Outreach
Pollution Prevention and Good
Housekeeping

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Town of Carrboro
10/4/2021
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PART 4: STORMWATER MANAGEMENT PROGRAM ADMINISTRATION

4.1 Organizational Structure
The figures below show the overall and departmental organization of the key staff involved in the Town’s
stormwater program. The Stormwater Division is housed in the Public Works Department. Other Public
Works Divisions and staff along with Planning Department staff, contract engineering support from
Sungate Design, and Orange County Erosion Control provide important support to the MS4 program.

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Town of Carrboro
10/4/2021
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Table 8: Summary of Responsible Parties-Town of Carrboro
SWMP Component Responsible Position Name

Department
Stormwater Program
Administration
Stormwater Utility Manager
Stormwater Administrator
Randy Dodd
Emily Cochran Public Works
SWMP Management Stormwater Administrator Emily Cochran Public Works
Public Education &
Outreach
Stormwater Specialist
Communications Manager
Heather Holley
Catherine
Lazorko
Public Works
Manager’s
Office
Public Involvement &
Participation
Stormwater Utility Manager
Stormwater Specialist
Stormwater Administrator
Randy Dodd
Heather Holley
Emily Cochran
Public Works
Illicit Discharge
Detection &
Elimination
Stormwater Administrator
Stormwater Specialist
Emily Cochran
Heather Holley Public Works
Construction Site
Runoff Control
Development Review Administrator
Engineer 1
Marty Roupe
Khadijah Hasan
Planning
Public Works
Post-Construction
Stormwater
Management
Pre-Construction, Construction:
Development Review Administrator
Town Engineer
Stormwater Utility Manager
Post-Construction SCM M&I:
Stormwater Administrator
Stormwater Specialist

Marty Roupe
Josh Dalton
Randy Dodd

Emily Cochran
Heather Holley

Planning
Sungate Design
Public Works

Public Works

Pollution
Prevention/Good
Housekeeping for
Municipal Operations
Public Works Director
Stormwater Specialist
Assistant to Public Works Director
Engineer 1
Construction Engineer
Daniel Snipes
Heather Holley
Kristen Benoit
Max Randall
Mike Thompson
Public Works
Municipal Facilities
Operation &
Maintenance Program
Public Works Director
Stormwater Utility Manager
Engineer 1
Stormwater Specialist
Construction Engineer
Daniel Snipes
Randy Dodd
Max Randall
Heather Holley
Mike Thompson
Public Works
Spill Response Program Fire Marshal
Public Works Director
Ray Enoch
Daniel Snipes
Fire and Rescue
Public Works
MS4 Operation &
Maintenance Program
Public Works Director

Daniel Snipes
Public Works

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Town of Carrboro
10/4/2021
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Stormwater Utility Manager
Engineer 1
Stormwater Specialist
Construction Engineer
Randy Dodd
Max Randall
Heather Holley
Mike Thompson
Municipal SCM
Operation &
Maintenance Program
Stormwater Utility Manager
Stormwater Specialist
Engineer 1
Construction Engineer
Randy Dodd
Heather Holley
Max Randall
Mike Thompson
Public Works
Pesticide, Herbicide &
Fertilizer Management
Program
Streets/Grounds Supervisor Dillon
Dispennette Public Works
Vehicle & Equipment
Maintenance Program
Public Works Director
Fleet Maintenance Supervisor
Stormwater Specialist
Daniel Snipes
Dustin Cook
Heather Holley
Public Works
Pavement Management
Program
Public Works Director
Streets/Grounds Supervisor

Solid Waste Supervisor
Daniel Snipes
Dillon
Dispennette
Chris Clark
Public Works
Total Maximum Daily
Load (TMDL)
Requirements
Stormwater Utility Manager Randy Dodd Public Works
Positions shown in bold have primary responsibility. Other key staff are also shown.

4.2 Program Funding and Budget
In accordance with the issued permit, the Town of Carrboro 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 Carrboro created a Stormwater Utility and Stormwater Enterprise Fund in 2017. The Utility
collects revenue through a rate structure approved by the Town Council. All revenue collected is
dedicated to the stormwater program. In FY 20/21, the rate structure has resulted in $1.0M in projected
revenue. This revenue supports both operating and capital program needs; about half of the annual
revenue is budgeted for operating expenses, including personnel, and about half is budgeted for capital
projects and reserves for future stormwater program needs. An analysis was performed in 2019 to
determine program needs, and a rate structure amendment was adopted in 2020 to raise additional
revenue. A Stormwater Utility Manager was hired in late 2017, a Stormwater Specialist in 2018, and a
Stormwater Administrator in 2020 to provide the necessary staffing to implement this SWMP. These staff

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are supported by other staff and additional contractual support and other operating and capital funds as a
result of the revenue being received through the Stormwater Enterprise Fund.

The tiered rate structure is defined by impervious area, and applicable to all non-exempt properties with at
least 500 square feet of impervious area. These fees are billed on the annual County Property Tax
Assessment. More information on the rate structure is available at
http://www.townofcarrboro.org/1138/Stormwater-Utility-Rate-Structure .

4.3 Shared Responsibility
The Town of Carrboro 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 Carrboro 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 Carrboro nor the other entity
fully performs the permit obligation. Table 9 below summarizes who will be implementing the
component, what the component program is called, the specific SWMP BMP or permit requirement that
is being met by the shared responsibility, and whether or not a legal agreement to share responsibility is in
place.

Table 9: Shared Responsibilities
SWMP BMP or
Permit Requirement Implementing Entity & Program Name
Legal
Agreement
(Y/N)
Erosion Control Orange County Erosion Control Y
Public Education and Outreach Clean Water Education Partnership Y
Post-construction Sungate Design Group Y

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4.4 Co-Permittees
There are no other entities applying for co-permittee status under the NPDES MS4 permit number
NCS000450 for the Town of Carrboro. Table 10 summarizes contact information for each co-permittee.

Table 10: Co-Permittee Contact Information
Co-Permittee MS4
Name
Contact Person Phone & E-Mail Interlocal
Agreement
(Y/N)
NA NA NA NA

4.5 Measurable Goals for Program Administration
The Town of Carrboro will manage and report the following Best Management Practices (BMPs) for the
administration of the Stormwater Management Program.

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Town of Carrboro
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Table 11: Program Administration BMPs
Permit
Ref.
2.1.2 and Part 4: Annual Self-Assessment
Measures to evaluate the performance and effectiveness of the SWMP program components at least annually.
Results shall be used by the permittee to modify the program components as necessary to accomplish the intent
of the Stormwater Program. The self-assessment reporting period is the fiscal year (July 1 – June 30).
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
1. Annual Self-Assessment
Perform an annual evaluation of
SWMP implementation, suitability of
SWMP commitments and any
proposed changes to the SWMP
utilizing the NCDEQ Annual Self-
Assessment Template.
1. Submit the Annual
Self-Assessment to
NCDEQ prior to August
31 each year.
1. Annually
Permit Years 1 – 4
1. Yes/No
Permit
Ref.
1.6: Permit Renewal Application
Measures to submit a permit renewal application no later than 180 days prior to the expiration date of the
NPDES MS4 permit.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
2. Permit Renewal Application
Audit stormwater program
implementation for compliance with
the permit and approved SWMP, and
utilize the results to prepare and
submit a permit renewal application
package.
1. Participate in an
NPDES MS4 Permit
Compliance Audit, as
scheduled and performed
by EPA or NCDEQ.
1. TBD – Typically
Permit Year 4
1. Yes/No
2. Self-audit and
document any
stormwater program
components not audited
by EPA or NCDEQ
utilizing the DEQ Audit
Template. Submit Self-
Audit to DEMLR
(required component of
permit renewal
application package).
2. Permit Year 5 2. Yes/No/Partial

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Table 11: Program Administration BMPs
3. Certify the stormwater
permit renewal
application (Permit
renewal application
form, Self-Audit, and
Draft SWMP for the next
5-year permit cycle) and
submit to NCDEQ at
least 180 days prior to
permit expiration.
3. Permit Year 5 3. Date of permit renewal
application submittal

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 21

PART 5: PUBLIC EDUCATION AND OUTREACH PROGRAM
The Town of Carrboro 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 stormwater 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
Carrboro 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)
Sediment General Public, Developers, Landscape Businesses, Municipal
Employees
Nitrogen, phosphorus General Public, OWASA, Businesses, Municipal Employees
Fecal coliform General Public, OWASA, Businesses, Municipal Employees
Litter General Public
Illicit discharges General Public, OWASA, Businesses, Municipal Employees
Illegal dumping/improper disposal
of waste General Public, Businesses, Municipal Employees
Yard waste Homeowners, HOAs, Landscape Businesses, Municipal Employees

The Town of Carrboro will manage, implement and report the following public education and outreach
BMPs.

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 22

Table 13: Public Education and Outreach BMPs
Permit
Ref.
3.2.2 and 3.2.4: Outreach to Targeted Audiences
Measures to identify the specific elements and implementation of a Public Education and Outreach Program to
share educational materials to the community or conduct equivalent outreach activities about the impacts of
stormwater discharges on water bodies and how the public can reduce pollutants in stormwater runoff. The
permittee shall provide educational information to identified target audiences on pollutants/sources identified in
Table 12 above, and shall document the extent of exposure of each media, event or activity, including those
elements implemented locally or through a cooperative agreement.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
3. Pet Owner Outreach
Perform outreach on the interaction
between stormwater and pet waste.
1. Design and distribute
pet waste outreach
material
1. Continuously
Permit Years 1-5
1. Number of online hits
on pet waste web page
Number of pet waste
outreach materials
handed out at events
2. Participate in the
Annual Town of
Carrboro Kids Dog Show
2. Annually
Permit Years 1-5
2. Number of pet waste
outreach materials
distributed at Dog Show
event
Number of people
engaged at Dog Show
event
3. Post outreach signs at
public spaces
3. Annually
Permit Years 1-5
3. Number of signs at
each Town-owned
property
4. Install/update pet
waste stations
4. Annually
Permit Years 1-5
4. Number of Town pet
waste stations
Number of bags refilled
5. Post outreach via
social media
5. Quarterly
Permit Years 1-5
5. Number of social
media posts
4. Storm Drain Marking Program
Support volunteers with placing
markers on storm drains. Volunteers
may include HOAs, schools, school
age groups, and restaurant owners.
1. Provide online form
for volunteers to mark
storm drains.
1. Permit Year 1 1. Yes/No/Partial

2.Coordinate volunteer
storm drain marking
events
2. Continuously
Permit Years 2-5
2.Number of storm
drains marked by
volunteers
Number of events
5. Landscaping Outreach

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 23

Table 13: Public Education and Outreach BMPs
Perform outreach on the interaction
of landscaping and stormwater.
Includes yard waste, pesticides,
herbicides, sediment, and landscaping
features (i.e.; rain gardens,
downspout disconnect, water quality
buffers, trees, etc.)
1. Design landscaping
outreach material for
private homeowners and
HOAs, landscaping
professionals, and
targeted retailers
1. Permit Year 1 1. Yes/No/Partial
2. Distribute electronic
mailing of targeted
materials to landscaping
professionals
2. Annually
Permit Years 1-5
2. Number of electronic
mailings
3. Distribute landscaping
materials to targeted
retailers
3. Annually
Permit Years 1-5
3. Number of outreach
materials distributed
4. Distribute landscaping
materials at Town Events
4. Annually
Permit Years 1-5
4. Number of materials
handed out at events
Number of online hits to
landscaping web page
6. Outreach to Schools
Perform outreach in cooperation with
the Chapel Hill-Carrboro City School
System. Town staff will coordinate
with Chapel Hill Stormwater staff as
the school district includes both
jurisdictions.
1. Update online
materials to include in
curriculum
1. Annually
Permit Years 1-5
1. Number of online hits
for curriculum materials
2. Provide stormwater
presentations in schools
2. Annually
Permit Years 1-5
2. Number of students
reached
7. Clean Water Education Partnership
Continue as a CWEP member. (See
Appendix A - CWEP agreement)
1. Pay annual dues to
maintain membership
1. Annually
Permit Years 1-5
1. Yes/No/Partial
2. Actively participate in
CWEP events and
meetings
2. Annually
Permit Years 1-5
2. Number of events,
meetings
Permit
Ref.
2.1.7, 3.2.3 and 3.6.5(c): Web Site
Measures to provide a web site designed to convey the program’s message(s) and provide online materials
including ordinances, or other regulatory mechanisms, or a list identifying the ordinances or other regulatory
mechanisms, providing the legal authority necessary to implement and enforce the requirements of the permit
and SWMP. The web page shall also provide developers with all relevant post-construction requirements,
design standards, checklists and/or other materials.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
8. Maintain Stormwater Website
The Stormwater Division maintains a
website
1. Evaluate engagement
on stormwater website
1. Annually
Permit Years 1-5
1. Number of online hits
on stormwater website

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 24

Table 13: Public Education and Outreach BMPs
(www.townofcarrboro.org/287/Storm
water) that provides information to
educate and inform Carrboro
residents regarding their
responsibilities in managing
stormwater, as well as the importance
of protecting water quality and
stream health. Pages include:
Carrboro’s Creeks, Stormwater
Projects, Drainage and Flooding
FAQs, Outreach, Sediment and
Erosion Control and many others.
The Stormwater Hotline and email
address is also prominently featured
as well as other tools for reporting
stormwater issues and contacting
staff.
2. Update content on
website
2. Continuously
Permit Years 1-5
2. Yes/No/Partial
9. Watershed and Stormwater Handbook
Carrboro has created a Watershed
and Stormwater Handbook that is a
central/”one stop” resource for
residents for all stormwater related
topics.
1. Update Handbook and
post on Stormwater
Webpage
1. Annually
Permit Years 1-5
1. Yes/No/Partial
Permit
Ref.
3.2.5: Stormwater Hotline
Measures for a stormwater hotline/helpline for the purpose of public education and outreach.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
10. Hotline Implementation
A specific telephone number, email
address, and web address have been
established where citizens can report
stormwater/pollution problems and/or
ask a stormwater question.
Emergency response is handled
through 911 and other systems.
1. Maintain Stormwater
Hotline phone number,
email address, and online
form.

1. Continuously
Permit Years 1-5
1. Number of emails to
stormwater email address
Number of phone calls to
stormwater hotline
Number of responses
using online form
2. Promote hotline at
Town of Carrboro Events
2. Continuously
Permit Years 1-5
2. Number of events
where hotline was
promoted
3. Distribute Hotline
Cards
3. Continuously
Permit Years 1-5
3. Number of hotline
cards distributed

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 25

Table 13: Public Education and Outreach BMPs
4. Promote the hotline
online (social media,
newsletter)
4. Continuously
Permit Years
4. Track promotion as #
of social media posts,
newsletters

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 26

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 Carrboro will manage, implement and report the following public involvement and
participation BMPs.

Table 14: Public Involvement and Participation BMPs
Permit
Ref.
3.3.1: Public Input
Mechanisms for public involvement that provide for input on stormwater issues and the stormwater program.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
11. Town Council Meetings
Town staff will continue to bring
stormwater issues before the Town
Council and community to provide
information on program related to the
stormwater program. Staff also
regularly provide information to
inform policy decisions related to
stormwater.
1. Provide regular reports
on stormwater activities
for published Council
agendas
1. Monthly when in
session, and as directed
by Town Manager/
Council
1. Number of reports to
Council
2. Provide information to
Council to inform policy
decisions related to
stormwater, as needed
2. Continuously
Permit Years 1-5
2. Number of agenda
items prepared for Town
Council review
12. Stormwater Advisory Commission Meetings
Town staff regularly meet with the
Stormwater Advisory Commission
(SWAC), the appointed citizen group
charged with providing a forum for
citizen participation and oversight of
the stormwater program. Meetings
are held monthly with a summer
recess. Staff bring stormwater issues
to the attention of the SWAC as well
as provide technical and professional
support on issues introduced by the
SWAC.
1. Attend and support
SWAC meetings.
1. Monthly (when in
session)
Permit Years 1-5
1. Number of SWAC
meetings held
13. Stormwater Hotline
See BMP #10 1. See BMP #10 1. See BMP #10 1. See BMP #10
14. Storm Drain Marking Program
See BMP #4 1. See BMP #4 1. See BMP #4 1. See BMP #4

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 27

Table 14: Public Involvement and Participation BMPs
Permit
Ref.
3.3.2: Volunteer Opportunities
Measures to provide volunteer opportunities designed to promote ongoing citizen participation.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
15. Stream/Stormwater Cleanups
Town staff will coordinate
community clean up events to
remove trash and debris from storm
drains and streams. Some/many of
these will be with Chapel Hill
because the two Towns share a
municipal boundary and watersheds,
and this collaboration is a way to
leverage resources and be more
effective.
1. Identify public areas
as candidates for
volunteer clean-ups.
1. Annually
Permit Years 1-5
1. Number of candidate
areas identified
2. Conduct volunteer
clean up events
2. Annually
Permit Years 1-5
2. Number of clean-up
events
Number of participants
Number of tons picked
up

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 28

PART 7: ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM
The Town of Carrboro will develop, manage, implement, document, report and enforce an Illicit
Discharge Detection and Elimination Program which shall, at a minimum, include the following illicit
discharge detection and elimination BMPs.
Table 15: Illicit Discharge Detection and Elimination BMPs
Permit
Ref.
3.4.1: MS4 Map
Measures to develop, update and maintain a municipal storm sewer system map including stormwater
conveyances, flow direction, major outfalls and waters of the United States receiving stormwater discharges.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
16. Continuously update stormwater system map
The Town shall maintain a
stormwater system map and
GIS database based on field
work to locate infrastructure
and devices, and continuously
updated as infrastructure
changes. The map includes all
above and below ground Town
owned and maintained
stormwater infrastructure along
with key attribute information.
1. Add new infrastructure as it is
constructed.
1. Continuously
Permit Years 1-5
1. Total number of
outfalls mapped
Number of outfalls
added during permit
year
Total miles of above
ground infrastructure
Total miles of below
ground infrastructure
17. Maintain Stormwater Control Measure inventory and map
The Town shall identify and
maintain a database of
Stormwater Control Measures
(SCMs), integrated into
existing stormwater system
map. The map shall distinguish
between privately/non-Town-
owned and Town-owned
SCMs.
1. Add new SCMs as they are
constructed.
1. Continuously
Permit Years 1-5

1. Total number of
SCMs mapped
Number of SCMs
added during permit
year
Permit
Ref.
3.4.2: Regulatory Mechanism
Measures to provide an IDDE ordinance or other regulatory mechanism that provides legal authority to
prohibit, detect, and eliminate illicit connections and discharges, illegal dumping and spills into the MS4,
including enforcement procedures and actions.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 29

Table 15: Illicit Discharge Detection and Elimination BMPs
18. Update the Illicit Discharge Ordinance as necessary to maintain legal authority.
The Town shall ensure the
continued applicability,
accuracy and legal standing of
the IDDE provisions in the
Town Code.

1. Coordinate with Town Attorney to
conduct review of Illicit Discharge
Ordinance.

1. Permit Year 1

1. Yes/No/Status
2. Update Illicit Discharge Ordinance 2. Permit Year 1 2. Yes/No/Status
Permit
Ref.
3.4.3: IDDE Plan
Measures to maintain and implement a written IDDE Plan to detect and address illicit discharges, illegal
dumping and any non-stormwater discharges identified as significant contributors of pollutants to the MS4.
The plan shall provide standard procedures and documentation to:
a) Locate priority areas likely to have illicit discharges,
b) Conduct routine dry weather outfall inspections,
c) Identify illicit discharges and trace sources,
d) Eliminate the source(s) of an illicit discharge, and
e) Evaluate and assess the IDDE Program.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
19. Maintain a written IDDE Plan
The Town shall maintain a
written IDDE plan to detect and
address illicit discharges, illegal
dumping and non-stormwater
discharges identified as
significant contributors of
pollutants to the MS4,
including provisions for
program assessment and
evaluation and associated
documents.
1. Conduct comprehensive initial review
of current plan and revise accordingly.

1. Permit Year 1 1. Yes/No/Partial
2. Submit new plan to DEQ for review
and approval.

2. Permit Year 1 2. Date submitted
3. Implement written IDDE Plan.

3. Continuously
Permit Years 2 -
5
3. Yes/No/Partial
4. Conduct review of plan, standard
documentation, forms, procedures and
SOPs; make changes as necessary.

4. Annually
Permit Years 1-5
4. Yes/No/Partial
20. Locate priority areas most likely to have illicit discharges

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 30

Table 15: Illicit Discharge Detection and Elimination BMPs
The Town shall identify areas
with high Illicit Discharge
Potential (IDP) based on
physical factors, historical
problems, and surrounding land
use. The Town has developed
an Illicit Discharge Potential
matrix and scored
subwatersheds and identified
priority outfalls for illicit
discharge investigations.
1. Review/update MS4 inspection areas
using Illicit Discharge Potential matrix.
1. Annually
Permit Years 1-5

1. Review conducted:
Yes/No/Partial
Number of high priority
subwatersheds
21. Conduct routine dry weather outfall inspections
The Town shall implement a
program of conducting and
tracking dry weather outfall
inspections. The Town’s Illicit
Discharge Program Plan
includes a program for
conducting dry weather flow
field observations, prioritizing
outfalls by subwatershed and
their respective illicit discharge
potential. Inspections utilize the
written Outfall Inspection SOP,
Outfall Inspection Field Sheet,
and the IDDE Documentation
SOP.
1. Establish Outfall Reconnaissance
Inventory inspection schedule, with
minimum of 20% inspected annually
1. Permit Year 1

1. Yes/No/Partial
2. Develop ORI inspection procedure,
standard documentation and forms

2. Permit Year 1 2. Yes/No/Partial
3. Inspect minimum of 20% MS4 per
year (100% every 5 years)
3. Continuously
Permit Years 1-5

3. Number of outfalls
inspected
Number of illicit
discharges identified as
a result of outfall
inspections
22. Identify illicit discharges and connections, trace and eliminate sources
The Town’s Illicit Discharge
Program Plan includes a
program of identifying and
eliminating illicit discharges by
tracing their sources and
pursuing enforcement as
necessary. The program
includes procedures for
responding to reports of illicit
discharges, conducting various
types of inspections to
determine sources, eliminating
illicit discharges and
connections, and issuing
enforcement as necessary.
1. Investigate reports of illicit discharges
to determine sources.
1. Continuously
Permit Years 1-5

1. Number of potential
illicit discharges
reported
Number of verified
illicit discharges
2. Halt illicit discharges and remedy
illicit connections as necessary
2. Continuously
Permit Years 1-5
2. Number of illicit
connections and
discharges remedied
3. Issue verbal and written enforcement,
including Notices of Violation and
penalties as appropriate
3. Continuously
Permit Years 1-5
3. Number of
enforcement actions
issued for illicit
discharges or
connections
23. Evaluate and assess the IDDE program at least annually

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 31

Table 15: Illicit Discharge Detection and Elimination BMPs
The Town shall evaluate the
IDDE program at least annually
and incorporate changes as
necessary. Assessment will
utilize number of stormwater
hotline emails and voicemail
messages, illicit discharge
investigations conducted,
outcomes of investigations,
enforcement issued, chronic
violators, and areas of
improvement.
1. Review program implementation and
IDDE metrics at least annually.
1. Annually
Permit Years 1-5

1. Yes/No/Status
Permit
Ref.
3.4.4: IDDE Tracking
Measures for tracking and documenting the date(s) an illicit discharge, illicit connection or illegal dumping was
observed, the results of the investigation, any follow-up of the investigation, the date the investigation was
closed, the issuance of enforcement actions, and the ability to identify chronic violators.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
24. Monitor illicit discharges, investigations and enforcement actions
The Town shall maintain an
“Event Tracking” spreadsheet
of reported illicit discharges
including location, type,
enforcement actions, and
outcomes. The spreadsheet
1. Document illicit discharges in
accordance with the Illicit Discharge
Documentation SOP, including the
Event Tracking spreadsheet and
CityWorks.

1. Continuously
Permit Years 1-5

1. Number of entries in
Event Tracking
spreadsheet per permit
year

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 32

Table 15: Illicit Discharge Detection and Elimination BMPs
documents the following: date
reported, date closed,
investigation ID #, location,
hotline report (Y/N), confirmed
illicit discharge (Y/N), nature
of discharge, results of
investigation, actions taken to
remedy illicit discharge,
enforcement actions issued, file
folder name, reporting party
(staff/public), investigator,
subwatershed, receiving stream.
The Town utilizes the
CityWorks platform for storing
and sharing details, photos and
comments. Staff shall follow
the Illicit Discharge
Documentation SOP.

2. Review illicit discharge database for
potential chronic violators at least
annually
2. Annually
Permit Years 1-5
2. Number of
established chronic
violators
Permit
Ref.
3.4.5: Staff IDDE Training
Measures to provide training for municipal staff and contractors who, as part of their normal job
responsibilities, may observe an illicit discharge, illicit connection, illegal dumping or spills. Training shall
include how to identify and report illicit discharges, illicit connections, illegal dumping and spills. Each staff
training event shall be documented, including the agenda/materials, date, and number of staff participating.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
25. Train municipal staff to identify illicit discharges
The Town shall train relevant
personnel on methods of
identifying illicit discharges,
connections, dumping or spills.
Personnel will take exams
before and after training to
evaluate comprehension.
1. Develop written training plan and
presentations for Town employees, first
responders, and contractors likely to
encounter illicit discharges
1. Permit Year 1

1. Yes/No/Partial
2. Train municipal staff to identify and
report potential illicit discharges
2. Annually
Permit Years 1-5

2. Number of staff
members trained
Percent of exams with
passing score
3. Evaluate effectiveness of training by
analyzing illicit discharges identified by
Town personnel
3. Annually
Permit Years 2 –
5

3. Percent illicit
discharges identified by
staff

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 33

Table 15: Illicit Discharge Detection and Elimination BMPs
Permit
Ref.
3.4.6: IDDE Reporting
Measures for the public and staff to report illicit discharges, illegal dumping and spills. The mechanism shall be
publicized to facilitate reporting and shall be managed to provide rapid response by appropriately trained
personnel.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
26. Monitor hotline and other reporting mechanisms for public and staff to report illicit discharges

The Town shall monitor the
stormwater hotline (phone and
email) for reports of illicit
discharges. IDDE reporting
shall follow the IDDE
Documentation SOP.
1. Develop written procedure for
documenting and communicating hotline
reports to relevant personnel, reporting
tracking system and relevant forms

1. Permit Year 1

1. Yes/No/Partial
2. Distribute flyers and educational
materials with reporting information to
Town personnel and public

2. Continuously
Permit Years 1 –
5
2. Number of
educational materials
distributed
3. Track hotline and email
communications
3. Continuously
Permit Years 1 –
5

3. Number of hotline
emails and phone calls
Number of inquiries
leading to confirmed
illicit discharges
4. Review efficacy of stormwater email
and hotline in identifying illicit
discharges with Town personnel at least
annually

4. Annually
Permit Years 1 –
5

4. Yes/No/Partial

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 34

PART 8: CONSTRUCTION SITE RUNOFF CONTROL PROGRAM
In accordance with 15A NCAC 02H .0153, the MS4name relies upon the North Carolina Sedimentation
Pollution Control Act (SPCA) of 1973 as a qualifying alternative program to meet a portion of the
NPDES MS4 Permit requirements for construction site runoff control measures. The SPCA requirements
include reducing pollutants in stormwater runoff from construction activities that result in land
disturbance of greater than or equal to one acre, and includes any construction activity that is part of a
larger common plan of development that would disturb one acre or more. The state SPCA Program is
either delegated to a city/town, delegated to a county, or implemented by NCDEQ in non-delegated areas.

Table 16: Qualifying Alternative Program Components for Construction Site Runoff Control Program
Permit
Reference
State or Local Program
Name Legal Authority Implementing
Entity
Meets Whole
or Part of
Requirement
3.5.1 -
3.5.4
Orange County
Delegated SPCA
Program*
15A NCAC Chapter 04
Orange County UDO 1.11,
2.18, 2.19, 2.26, 6.15, 9.8
Carrboro LUO Article XVI,
Sections 15-251.3 and 15-264
Orange County
Erosion Control
Whole
2
* The local delegated SPCA Program ordinance(s)/regulatory mechanism(s) can be found at:
https://www.co.orange.nc.us/DocumentCenter/View/8305/Unified-Development-Ordinance-PDF ,
Section 2-19, p 2-65.

Training of Orange County Erosion Control staff will be per an agreement, "Memorandum of Agreement
between the NC Sedimentation Control Commission (Commission) and Orange County"
The Town delegated authority to Orange County via a Board of Aldermen resolution in 1976 and
amendment of the Land Use Ordinance in 1983.

During this permit cycle, the Town will increase efforts to coordinate Construction Site Runoff Control
activities with the County. The Town specifically intends to coordinate with Orange County starting in
the first year of the permit and continuing: to review their respective resolutions and ordinances and
amend as warranted; and establish new and enhanced procedures to share information in each
jurisdiction’s respective permitting systems.

Orange County Erosion Control has measures in place to review plans, perform inspections, and enforce
as necessary for any and all sediment and erosion control practices for permitted development projects in
Carrboro. Orange County will continue in this permit cycle to provide an annual report to the Town to
support the Town’s recordkeeping for this Plan.

The Town of Carrboro will also implement the following BMPs to meet NPDES MS4 Permit
requirements.

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 35

Table 17: Construction Site Runoff Control BMPs
Permit
Ref.
3.5.6: Public Input
Measures to provide and promote a means for the public to notify the appropriate authorities of observed
erosion and sedimentation problems.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
27. Municipal Staff Training
Train municipal staff who receive
calls from the public on the protocols
for response, referral and tracking of
construction site runoff control
complaints.

1. Train municipal staff
on proper handling of
construction site runoff
control complaints.
1. Annually
Permit Years 1-5
1. Number of staff
trained
28. Stormwater Hotline
See BMP #10 1. See BMP #10 1. See BMP #10 1. See BMP #10
Permit
Ref.
3.5.5: Waste Management
Measures to require construction site operators to control waste such as discarded building materials, concrete
truck washout, chemicals, litter, and sanitary waste at the construction site that may cause adverse impact to
water quality.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
29. Construction Site Management-Town
Zoning staff review and issue land
use permits for new development
projects including managing
construction waste streams

1. Reporting on number
of permitted
development/
construction sites with
construction waste
management compliance
oversight
1. Annually
Permit Years 1-5
1. Number of permitted
development/
construction sites

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 36

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 Carrboro 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 Carrboro 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
Water Supply Watershed (WS-II) 15A NCAC 2B
.0620 - .0624
Article XVI, Section 15-266
Water Supply Watershed (WS-IV) 15A NCAC 2B
.0620 - .0624

2

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 37

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 38

Table 19: Summary of Existing Post-Construction Program Elements
Permit Requirements for
Plan Review and Approval
Municipal Ordinance/Code Reference(s)
and/or Document Title(s)
Date Adopted
3.6.2(a) Authority LUO Article I Section 15-2 4/1982
3.6.3(a) & 15A NCAC 02H.0153(c)
Federal, State & Local Projects
LUO Article I Section 15-2, 15-3 4/1982
3.6.3(b) Plan Review LUO Article IV Various
3.6.3(c) O&M Agreement LUO Article XVI Section 15-263.1 6/2007,
amended 6/2012
3.6.3(d) O&M Plan LUO Article XVI Section 15-263.1 6/2007,
amended 6/2012
3.6.3(e) Deed
Restrictions/Covenants
LUO Article XVI Section 15-263.1(f) 6/2007
3.6.3(f) Access Easements LUO Article XVI Section 15-263.1 6/2007,
amended 6/2012
Permit Requirements for
Inspections and Enforcement
Municipal Ordinance/Code Reference(s)
and/or Document Title(s)
Date Adopted
3.6.2(b) Documentation LUO Article XVI Section 15-263.1(c) 6/2007
3.6.2(c) Right of Entry LUO Article XVI Section 15-263.1.(e)(2) 6/2007
3.6.4(a) Pre-CO Inspections LUO Article XVI Section 15-263.1(e) 6/2007
3.6.4(b) Compliance with Plans LUO Article IV Various
3.6.4(c) Annual SCM Inspections LUO Article XVI Section 15-263.1(c) 6/2007
3.6.4(d) Low Density Inspections 1: LUO Article XVI Section15-263.1(e) & 2:
Section 15-266(e)
1: 6/2007 & 2:
11/1980,
amended
10/1996
3.6.4(e) Qualified Professional LUO Article XVI Section 15-263.1(c) 6/2007
Permit Requirements for
Fecal Coliform Reduction
Municipal Ordinance/Code Reference(s)
and/or Document Title(s)
Date Adopted
3.6.6(a) Pet Waste Town Code Article IV, Section 10.5.1 2/2017
3.6.6(b) On-Site Domestic
Wastewater Treatment
1: LUO Article XI, Section 15-267 & 2:
LUO Article XV Section 15-238 & 3: LUO
Article XI, Section 15-239 & 4: Orange
County Regulations for Wastewater
Treatment and Disposal Systems Section
.1900
1: 5/1990 & 2:
11/1980 & 3:
11/1980 & 4:
2/2015

The annual reporting metrics for the post construction program are provided in Table 20: Post
Construction Site Runoff Control BMPs below.

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 39

Table 20: Post Construction Site Runoff Control BMPs
Permit
Ref.
3.6.5(a), 3.6.5(b), and 4.1.3: Minimum Post-Construction Reporting Requirements
Measures to document activities over the course of the fiscal year (July 1 – June 30) including appropriate
information to accurately describe progress, status, and results.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
30. Standard Reporting
Implement standardized tracking,
documentation, inspections and
reporting mechanisms to compile
appropriate data for the annual self-
assessment process. Data shall be
provided for each Post-Construction/
Qualifying Alternative Program
being implemented as listed in Tables
18 and 19.
1. Track number of low
density and high density
plan reviews performed.
1. Continuously
Permit Years 1-5
1. Number of plan
reviews performed for
low density and high
density
2. Track number of low
density and high density
plans approved.

2. Continuously
Permit Years 1-5
2. Number of plan
approvals for low density
and high density
3. Maintain a current
inventory of low density
projects and constructed
SCMs including SCM
type or low density
acreage, location and last
inspection date.

3. Continuously
Permit Years 1-5
3. Summary of number
and type of SCMs added
to the inventory; and
number and acreage of
low density projects
constructed.
4. Track number of SCM
inspections performed.

4. Continuously
Permit Years 1-5
4. Number of SCM
inspections
5. Track number of low
density inspections
performed.

5. Continuously
Permit Years 1-5
5. Number of low density
projects inspected
6. Track number and
type of enforcement
actions taken.

6. Continuously
Permit Years 1-5
6. Number of
enforcement actions
issued
31. Post-Construction Maintenance Program Outreach
Create and maintain web content
related to the Post-Construction
Program including regulatory
requirements, owner responsibility,
design standards, and information on
SCMs including maintenance and
inspections.

1. Evaluate engagement
on post-construction
website
1. Annually
Permit Years 1-5

1. Number of online hits
on post-construction web
page

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 40

Table 20: Post Construction Site Runoff Control BMPs
Permit
Ref.
2.3 and 3.6: Qualifying Alternative Program(s)
Measures to develop, implement and enforce additional BMPs in order to comply with the QAP state program
requirements.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
32.
The QAP requirements are fully met by the existing QAP for post-construction, see references provided in Table 18.

The QAP requirements are fully met
by the existing QAP for post-
construction, see references provided
in Table 18.

1. See Table 18. 1. See Table 18. 1. See Table 18.
Permit
Ref.
3.6.2: Legal Authority
Measures to maintain adequate legal authorities through ordinance or other regulatory mechanism to: (a) review
designs and proposals for new development and redevelopment to determine whether adequate stormwater
control measures will be installed, implemented, and maintained, (b) request information such as stormwater
plans, inspection reports, monitoring results, and other information deemed necessary to evaluate compliance
with the Post-Construction Stormwater Management Program, and (c) enter private property for the purpose of
inspecting at reasonable times any facilities, equipment, practices, or operations related to stormwater
discharges to determine whether there is compliance with the Post-Construction Stormwater Management
Program.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
33. This permit requirement is fully met by the existing post-construction program, see references provided in Table
19.

This permit requirement is fully met
by the existing post-construction
program, see references provided in
Table 19.

1. See Table 19. 1. See Table 19. 1. See Table 19.

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 41

Table 20: Post Construction Site Runoff Control BMPs
Permit
Ref.
3.6.3: Plan Review and Approval
Measures to maintain plan review and approval authority, standards and procedures to: (a) Require Federal,
State, and local government projects to comply with Post-Construction Program requirements throughout the
entire MS4 permitted area, unless the entity is subject to its own NPDES MS4 permit or a qualifying alternative
program, (b) Conduct site plan reviews of all new development and redeveloped sites that disturb greater than
or equal to one acre, and sites that disturb less than one acre that are part of a larger common plan of
development or sale for compliance with 15A NCAC 02H .1017 and the qualifying alternative programs that
apply within your jurisdiction, (c) Ensure that each project has an Operation and Maintenance Agreement that
complies with 15A NCAC 02H .1050(12), (d) Ensure that each project has an Operation and Maintenance Plan
that complies with 15A NCAC 02H .1050(13), (e) Ensure that each project has recorded deed restrictions and
protective covenants, that require the project to be maintained consistent with approved plans, and (f) Ensure
that each SCM and associated maintenance accesses be protected in a permanent recorded easement per 15A
NCAC 02H 1050 (9) and (10).
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
34. This permit requirement is fully met by the existing post-construction program, see references provided in Table
19.

This permit requirement is fully met
by the existing post-construction
program, see references provided in
Table19.

1. See Table 19. 1. See Table 19. 1. See Table 19.
Permit
Ref.
3.6.4: Inspections and Enforcement
Measures to maintain inspection and enforcement authority, standards and procedures to: (a) Conduct post -
construction inspections prior to issuing a Certificate of Occupancy or a Temporary Certificate of Occupancy.
Alternatively, the project owner may provide a surety bond to guarantee compliance with the approved plan(s),
(b) Ensure that the project has been constructed in accordance with the approved plan(s), (c) Ensure annual
inspection of each permitted SCM to ensure compliance with the approved Operation and Maintenance
Agreement, (d) Ensure inspection of low density projects at least once during the permit term, and (e) Require
that inspections be conducted by a qualified professional.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
35. This permit requirement is fully met by the existing post-construction program, see references provided in Table
19.

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 42

Table 20: Post Construction Site Runoff Control BMPs
This permit requirement is fully met
by the existing post-construction
program, see references provided in
Table
19.

1. See Table 19. 1. See Table 19. 1. See Table 19.
Permit
Ref.
3.6.6: Fecal Coliform Reduction
Measures to control, to the maximum extent practicable, sources of fecal coliform per 15A NCAC 02H
.1017(7). At a minimum, the program shall include: (a) A pet waste management component, which may be
achieved by revising an existing litter ordinance, and (b) An on-site domestic wastewater treatment system
component, if applicable, which may be coordinated with local county health department, to ensure proper
operation and maintenance of such systems.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
36. Implement a pet waste management program
Perform outreach on the interaction
between stormwater and pet waste.

1. See BMP #3 1. See BMP #3 1. See BMP #3
37. Ensure proper operation and maintenance of on-site domestic wastewater treatment systems
Coordinate with Orange County
Health Department, Environmental
Health Division to ensure operation
and maintenance of septic systems,
including reporting septic system
failures to OC staff. Staff coordinate
with OC staff to receive
environmental surveys completed in
the Carrboro jurisdiction.
1. Update inventory of
properties with septic
systems within
jurisdiction

1. Permit Year 1 1. Number of properties
with septic systems
2. Maintain data of septic
system failures and
resulting actions

2. Continuously
Permit Years 1-5
2. Number of septic
system failures reported
3. Maintain reports of
environmental surveys
conducted by OC staff in
Carrboro jurisdiction

3. Continuously
Permit Years 1-5
3. Number of
environmental surveys
conducted

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 43

PART 10: POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS
This SWMP provides a comprehensive pollution prevention and good housekeeping strategy for the
Town of Carrboro 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 Carrboro will manage, implement and report the pollution prevention and good
housekeeping BMPs as specified in Table 21 below for each required program.

Table 21: Pollution Prevention and Good Housekeeping BMPs
Permit
Ref.
3.7.1: Municipal Facilities Operation and Maintenance Program
Measures to manage facilities that are owned and operated by the permittee and have the potential for generating polluted
stormwater runoff. The permittee shall maintain a current inventory of municipal facilities; perform facility inspections
and routine maintenance; establish specific frequencies, schedules, and standard documentation; provide staff training on
general stormwater awareness and implementing pollu tion prevention and good housekeeping practices.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
38. Maintain a current inventory of municipal facilities
The Town maintains an inventory of
municipal facilities including the
public works building, town hall, fire
1. Update inventory of
municipal facilities

1. Continuously
Permit Years 1-5
1. Yes/No/Partial

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 44

Table 21: Pollution Prevention and Good Housekeeping BMPs
stations, and public parks. Inventory
is updated as facilities are added or
changed.
2. Conduct review of
facilities for stormwater
pollution potential and
opportunities for
improvement

2. Annually
Permit Years 1-5
2. Yes/No/Partial
39. Perform facility inspections and routine maintenance
Inspect Town facilities for
compliance with good housekeeping
practices and evaluate effectiveness
of documentation and reporting.
Routine maintenance activities vary
based on facility needs.
1. Establish specific
frequencies, schedules
and standard
documentation for each
Town facility.

1. Permit Year 1 1. Yes/No/Partial
2. Inspect Town facilities
for compliance,
adherence to good
housekeeping practices
and adequate
documentation of
maintenance activity.

2. Annually
Permit Years 1-5
2. Number of facilities
inspected

3. Perform routine
maintenance in
accordance with facility
needs.

3. Continuously
Permit Years 1-5
3. Yes/No/Partial
40. Annual Stormwater Training Program
Provide annual training to relevant
Town of Carrboro staff for general
stormwater awareness, with emphasis
on Pollution Prevention and Good
Housekeeping for municipal facilities
and the Town maintained MS4 and
rights of way.
1. Develop training
materials and schedule

1. Permit Year 1 1. Yes/No/Partial
2. Conduct training for
Town staff
2. Annually
Permit Years 1-5
2. Number of staff
trained
Number of training
events held
3. Provide Hotline
information cards to staff

3. Continuously
Permit Years 1-5
3. Number of hotline
cards distributed to staff
4. Provide stormwater
related items to internal
Town newsletter

4. Quarterly
Permit Years 1-5
4. Number of articles
submitted to Town
newsletter

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 45

Table 21: Pollution Prevention and Good Housekeeping BMPs
5. Install informational
posters in Town
breakrooms

5. Annually
Permit Years 1-5
5. Number of pollution
prevention posters hung
in breakrooms
Permit
Ref.
3.7.2: Spill Response Program
Measures for facilities and operations that store and/or use materials that have the potential to contaminate stormwater
runoff if spilled. The permittee shall maintain written spill response procedures and train staff on spill response
procedures.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
41. Spill Response Procedures
The Town has established spill
response procedures that apply to all
Town facilities and operations.
1. Review spill
response procedures for
adequacy.

1. Annually
Permit Years 1-5
1. Yes/No/Partial
2. Install informational
posters at each facility.
2. Permit Year 1 2. Number of spill
response posters
installed

3. Record spills that
required clean-up
response

3. Continuously
Permit Years 1-5
3. Number of reported
spills requiring clean-up
42. Annual Stormwater Training Program
See BMP #40 1. See BMP #40 1. See BMP #40 1. See BMP #40
43. Annual First Responders Spill Training
Town first responders receive
separate spill response training from
certified third-party trainers.
1. Verify first responders
training.
1. Annually
Permit Years 1-5
1. Number of staff
trained
Number of training
events held

Permit
Ref.
3.7.3: MS4 Operation and Maintenance Program
Measures to minimize pollutants in the stormwater collection system. The permittee shall provide operation and
maintenance staff training on stormwater awareness and pollution prevention, perform MS4 inspections, maintain the
collection system including catch basins and conveyances; and establish specific frequencies, schedules, and standard
documentation.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
44. Annual Stormwater Training Program

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 46

Table 21: Pollution Prevention and Good Housekeeping BMPs
See BMP #40 1. See BMP #40 1. See BMP #40 1. See BMP #40
45. Outfall Inspections Program
See BMP #21 1. See BMP #21 1. See BMP #21 1. See BMP #21
46. Collection System Inspections and Maintenance

Stormwater Division and Public
Works Operations staff maintain
oversight of the stormwater
infrastructure/collection system.
Operations perform as-needed and
scheduled maintenance and repairs.
Standard documentation is completed
through the CityWorks platform;
inquiries from public and staff are
recorded as stormwater investigations
and work performed is recorded as
service requests or work orders.
1. Establish specific
frequencies and
schedules for inspection
and maintenance of
collection system.

1. Permit Year 1 1. Yes/No/Partial
2. Investigate
complaints/inquiries
about drainage/collection
system for Town
maintained rights of way
and property.

2. Continuously
Permit Years 1-5
2. Number of stormwater
investigations relating to
collection system
3. Inspect a minimum of
20% of the MS4
annually, with a focus on
priority watersheds
identified in the IDDE
program

3. Annually
Permit Years 1-5
3. Number of inspections
conducted
4. Maintain MS4,
including routine
maintenance/cleaning,
repairs, improvements as
needed based on
inspections.

4. Continuously
Permit Years 1-5
4. Number of service
requests
Number of work orders

Permit
Ref.
3.7.4: Municipal SCM Operation and Maintenance Program
Measures to manage municipally-owned, operated, and/or maintained structural stormwater control measures (SCMs) that
are installed for compliance with the permittee’s post-construction program. The permittee shall maintain a current
inventory of SCMs, perform SCM inspections and maintenance, and shall establish specific frequencies, schedules, and
documentation.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
47. Maintain Inventory

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Town of Carrboro
10/4/2021
Page 47

Table 21: Pollution Prevention and Good Housekeeping BMPs
Routinely update SCM inventory
data with new SCMs and attributes in
GIS data

1. Add and track SCMs
in GIS
1. Continuously
Permit Years 1-5
1. Number of mapped
municipal SCMs
48. Municipal SCM inspections and maintenance
Inspect and maintain municipal
SCMs, at least annually but more
frequently as required by
maintenance schedules.
1. Develop SCM
maintenance schedules
and inspection forms for
all SCMs

1. Permit Year 1 1. Yes/No/Partial
2. Conduct inspections of
municipal SCMs

2. Annually
Permit Years 1-5
2. Number of inspections
conducted
3. Maintain SCMs to
ensure function
3. Continuously
Permit Years 1-5
3. Number of work
orders related to SCM
maintenance

Permit
Ref.
3.7.5: Pesticide, Herbicide and Fertilizer Management Program
Measures to minimize water quality impacts from the use of landscape chemicals. The permittee shall provide routine
pollution prevention and chemical use, storage and handling training, and shall ensure compliance with permits and
applicator certifications.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
49. Pesticides, Herbicide, and Fertilizer Training
Train and certify applicable Town
staff to apply landscape chemicals
(pesticides, herbicides and fertilizers)
in accordance with the Town Code
requirements and in a manner that
will minimize water quality impacts.
1. Develop landscape
chemicals training plan

1. Permit Year 1 1. Yes/No/Partial
2. Train applicable Town
staff annually
2. Annually
Permit Years 1-5
2. Number of personnel
trained
Number of training
events held

3. Maintain applicator
certifications for
appropriate personnel.

3. Continuously
Permit Years 1-5
3. Number of certified
personnel
50. Annual Stormwater Training Program
See BMP #40 1. See BMP #40 1. See BMP #40 1. See BMP #40
51. Least Toxic Integrated Pest Management and Plant Healthcare Policy

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Town of Carrboro
10/4/2021
Page 48

Table 21: Pollution Prevention and Good Housekeeping BMPs
The Town has an adopted policy for
pest management products for Town
operations, which includes
procedures for pollution prevention,
chemical use, and storage and
handling training. The stated goal of
the IPM&PHC Policy is to develop a
systematic course of action to prevent
pest infestations, and to manage pests
successfully, while minimizing
adverse effects on people and the
environment. The policy is
maintained by the Environmental
Sustainability Coordinator.

1. Conduct a joint review
of the policy with the
Environmental
Sustainability
Coordinator.

1. Permit Year 1 1. Yes/No/Partial
2. Review products used,
both in-house and via
contracts, as products are
purchased and/or start of
new contracts, for
compliance with permits,
applicator certifications,
and Policy.
2. Continuously
Permit Years 1-5
2. Yes/No/Partial
Permit
Ref.
3.7.6: Vehicle and Equipment Maintenance Program
Measures to prevent and minimize contamination of stormwater runoff from areas used for municipal vehicle and
equipment maintenance and/or cleaning. The permittee shall ensure that municipal industrial facilities subject to NPDES
industrial permitting comply with those permit requirements, provide routine pollution prevention training to staff,
perform routine inspections, and establish specific frequencies, schedules, and documentation.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
52. Inspections and Recordkeeping Coordination with Vehicle Maintenance Yard SWPPP
Inspect Public Works facility for
compliance with NCG080676 permit,
SWPPP and good housekeeping
practices for vehicle, equipment and
facility maintenance. Evaluate
effectiveness of documentation and
reporting.
1. Inspect Public Works
facility for compliance
and adherence to good
housekeeping practices.

1. Quarterly
Permit Years 1-5
1. Number of inspections
completed

2. Review maintenance
logs/reports and
quarterly inspections;
prepare report on facility
compliance

2. Annually
Permit Years 1-5
2. Yes/No/Partial
53. Vehicle Washing

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Town of Carrboro
10/4/2021
Page 49

Table 21: Pollution Prevention and Good Housekeeping BMPs
An outdoor vehicular wash area has
been built at the Public Works
Facility, where all municipal vehicles
are washed. The Training Program
will include this requirement and
employee reporting of any
observations of inappropriate vehicle
washing

1. Communicate standard
washing procedures to
municipal staff during
annual training and via
posted material
1. Continuously
Permit Years 1-5
1. Yes/No/Partial
54. Annual Stormwater Training Program
See BMP #40 1. See BMP #40 1. See BMP #40 1. See BMP #40
55. Vehicle and Equipment Inspections
All vehicles and equipment will be
routinely inspected to prevent
pollution. Inspections will include
parking spots. Any spills will be
addressed per PPGH/spill response
procedures.

1. Maintain vehicle
inspection records
1. Continuously
Permit Years 1-5
1. Number of inspections
completed
Permit
Ref.
3.7.7: Pavement Management Program
Measures to reduce pollutants in stormwater runoff from municipally -owned streets, roads, and parking lots within the
permittee’s corporate limits. The permittee shall implement measures to control litter, leaves, debris, particulate and fluid
pollutants associated with vehicles, and establish specific frequencies, schedules, and documentation.
BMP
No.
A B C D
Description of BMP Measurable Goal(s) Schedule for
Implementation
Annual Reporting
Metric
56. Street Sweeping Program
The Public Works Department
performs routine weekly street
sweeping and on an as needed basis.
1. Review street
sweeping routes and
schedules

1. Annually
Permit Years 1-5
1. Yes/No/Partial
2. Perform regularly
scheduled and on-request
street sweeping activities

2. Continuously
Permit Years 1-5
2. Miles of streets swept
Tons of debris collected
57. Yard Debris/Leaf Program
The Public Works Department
performs yard debris/leaf pick up and
leaf composting. Pick-ups occur
weekly during the fall and spring as
1. Review yard debris
pick up routes and
schedules

1. Annually
Permit Years 1-5
1. Yes/No/Partial

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Town of Carrboro
10/4/2021
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Table 21: Pollution Prevention and Good Housekeeping BMPs
well as upon request by staff or
citizens.
2. Perform seasonal and
on-request yard
debris/leaf collection

2. Continuously
Permit Years 1-5
2. Tons of yard debris
collected
58. Resurfacing Program
The Public Works Department runs a
street resurfacing program. The
program includes pollution
prevention and spill response and
compliance with all federal, state, and
local laws.
1. Conduct annual needs
assessment to determine
candidate streets for
resurfacing

1. Annually
Permit Years 1-5
1. Yes/No/Partial
2. Budget, schedule and
perform resurfacing for
priority streets

2. Annually
Permit Years 1-5
2. Square yards of
priority areas resurfaced
Tons of asphalt applied
3.Spill response 3. See BMP #41 3. See BMP #41

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 51

Appendix A

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 52

FINAL NCS000450 SWMP
Town of Carrboro
10/4/2021
Page 53