HomeMy WebLinkAbout01 - City of Raleigh Stormwater Management Plan
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Permit No. NCS000245 - Updated February 2021 - Final - Prepared by: Brown and Caldwell
City of Raleigh
Stormwater
Management Plan
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Table of Contents
Revision Log .................................................................................................................................................. 5
Certification................................................................................................................................................... 6
Section 1: Introduction ................................................................................................................................. 7
Section 2: MS4 Information .......................................................................................................................... 9
2.1 Permitted MS4 Area.............................................................................................................. 9
2.2 Existing MS4 Mapping ......................................................................................................... 10
2.3 Receiving Waters ................................................................................................................ 10
2.4 MS4 Interconnection .......................................................................................................... 14
2.5 Total Maximum Daily Loads ................................................................................................ 14
2.6 Industrial Facility Discharges............................................................................................... 14
2.7 Non-Stormwater Discharges ............................................................................................... 14
2.8 Target Pollutants and Sources ............................................................................................ 16
Section 3: Program Implementation ........................................................................................................... 17
3.1 City Ordinances ................................................................................................................... 17
3.2 Program Funding and Budget ............................................................................................. 17
3.3 Organizational Structure ..................................................................................................... 17
Section 4: Public Education and Outreach .................................................................................................. 21
Section 5: Public Involvement and Participation ........................................................................................ 24
Section 6: Illicit Discharge Detection and Elimination (IDDE) ..................................................................... 26
Section 7: Construction Site Runoff Controls ............................................................................................. 29
Section 8: Post-Construction Site Runoff Controls ..................................................................................... 31
Section 9: Pollution Prevention and Good Housekeeping for Municipal Operations ................................ 34
Section 10: Program to Monitor and Control Pollutants in Storm Water Discharges to Municipal Systems
.................................................................................................................................................................... 39
Section 11: Water Quality Assessment and Monitoring ............................................................................. 41
Section 12: Total Maximum Daily Loads ..................................................................................................... 43
Section 13: Program Assessment, Record Keeping, and Reporting ............................................................ 48
13.1 Program Assessment ........................................................................................................ 48
13.2 Record Keeping ................................................................................................................. 48
13.3 Annual Reporting .............................................................................................................. 48
List of Figures
Figure 1. City of Raleigh Corporate Limits and ETJ ....................................................................................... 9
Figure 2. City of Raleigh MS4 Permit Implementation Responsible Departments Organizational Chart ... 18
Figure 3. City of Raleigh Stormwater Management Division MS4 Permit Implementation Organizational
Chart ............................................................................................................................................................ 19
List of Tables
Table 1. MS4 Receiving Waters ................................................................................................................... 10
Table 2. Summary of EPA-Approved TMDLs or Nutrient Management Strategies .................................... 14
Table 3. Non-Stormwater discharges.......................................................................................................... 15
Table 4. Program Element – Program Implementation .............................................................................. 20
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Table 5. BMP Measurable Goals for the Public Education and Outreach Program .................................... 22
Table 6. BMP Measurable Goals for the Public Involvement and Participation Program .......................... 25
Table 7. BMP Measurable Goals for the IDDE Program ............................................................................. 27
Table 8. Program Elements for Construction Site Runoff Controls ............................................................ 30
Table 9. BMP Measurable Goals for Post Construction Site Runoff Control .............................................. 32
Table 10. BMP Measurable Goals for Pollution Prevention and Good Housekeeping for Municipal
Operations .................................................................................................................................................. 36
Table 11. BMP Measurable Goals for the Program to Monitor and Control Pollutants in Stormwater
Discharges to Municipal Systems ................................................................................................................ 40
Table 12. BMP Measurable Goals for Water Quality Assessment and Monitoring .................................... 42
Table 13. BMP Measurable Goals for TMDL Program ................................................................................ 44
Table 14. Program Elements for TMDL Program ........................................................................................ 47
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Acronyms
AU Assessment Unit
BMP Best Management Practice
City City of Raleigh
CWEP Clean Water Education Partnership
DEQ North Carolina Department of Environmental Quality
ETJ Extra Territorial Jurisdiction
GIS Geographic Information System
I&M Inspection and Maintenance
IDDE Illicit Discharge Detection and Elimination
MEP Maximum Extent Practicable
MS4 Municipal Separate Storm Sewer System
NCDOT North Carolina Department of Transportation
NCSU North Carolina State University
NPDES National Pollutant Discharge Elimination System
PPGH Pollution Prevention and Good Housekeeping
SARA Superfund Amendments and Reauthorization Act of 1986
SCM Stormwater Control Measure
SMAC Stormwater Management Advisory Commission
SPCA North Carolina Sedimentation Pollution Control Act
SPPP Site Pollution Prevention Plan
SOP Standard Operating Procedure
SWMP Stormwater Management Plan
SWPPP Stormwater Pollution Prevention Plan
TMDL Total Maximum Daily Load
UDO Unified Development Ordinance
WLA Waste Load Allocation
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Revision Log
Revision
Number Date Revision Staff
City of Raleigh NC - Permit No. NCS000245
Updated February 2021
w e
I 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 a ranking elected official.
❑ I am a principal executive officer for the permitted MS4.
I am a duly authorized representative for the permitted MS4 and have attached the
authorization made in writing by a principal executive officer or ranking elected official which
specifies me as (check one):
❑ A specific individual having overall responsibility for stormwater matters.
A specific position having overall responsibility for stormwater matters.
Signature:
Print
Name:
v1/
Title:
Stormwater Program Manager
Signed this 3 1> day of 20 70 '>
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Section 1: Introduction
The City of Raleigh (City) operates under a Phase I National Pollutant
Discharge Elimination System (NPDES) Municipal Separate Storm Sewer
System (MS4) Permit Number NCS000245. The current iteration of the
City permit became effective October 10, 2018 and extends through
October 9, 2023.
This permit authorizes the City to discharge stormwater from the MS4, located within the City
corporate limits, into the receiving waters of the State within the Neuse River Basin. This
document is the Stormwater Management Plan (SWMP), as required by Part I.A of the City’s
NPDES MS4 permit, which establishes the methods by which the City implements the permit
requirements to achieve compliance and protect receiving stream water quality, to the extent
allowable under State and local law. In preparing this SWMP, the City of Raleigh has evaluated
its MS4 and the permit requirements to develop a comprehensive five-year SWMP that will
meet the community’s needs, address local water quality issues, and provide the measures
necessary to comply with the permit. This includes the effective prohibition of non-stormwater
discharges to the MS4 and the reduction of pollutant discharges to the maximum extent
practicable (MEP) through the implementation of the six minimum measures stipulated in the
Federal NPDES regulations. This SWMP identifies the program elements to be implemented
under the permit program, and includes: a brief program narrative, the best management
practices (BMPs) intended to fulfill the permit requirements; measurable program goals; annual
reporting metrics; implementation schedules; and responsible parties.
The SWMP includes the following core NPDES MS4 permit programs, implemented within the
City’s corporate limits unless otherwise noted:
• Project Education and Outreach - BMPs to distribute educational materials to the
community, conduct public outreach activities, raise public awareness on the causes and
impacts of stormwater pollution, and inform the public on steps they can take to reduce
or prevent stormwater pollution.
• Public Involvement and Participation - BMPs for the public to participate in program
development and implementation and to comply with applicable State and local public
notice requirements.
• Illicit Discharge Detection and Elimination - BMPs to detect and eliminate illicit
discharges to the City’s MS4, address significant contributors of pollutants to the MS4,
implement appropriate enforcement procedures and actions, maintain a map showing
the City’s major MS4 outfalls to State waters receiving discharges, and inform
employees, businesses, and the general public of hazards associated with illegal
discharges and improper disposal of waste.
• Construction Site Runoff Controls - BMPs to reduce pollutants in stormwater runoff
from construction activities disturbing one acre or greater of land surface and to provide
procedures for public input, sanctions to ensure compliance, requirements for
construction site operators to implement appropriate erosion and sediment control
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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practices, review of site plans, and procedures for site inspection and enforcement of
control measures. The City’s unified development ordinance (UDO) exceeds this MS4
permit requirement, requiring BMPs to reduce pollutants in stormwater runoff from
construction activities disturbing 12,000 sq ft or more of land surface. The City’s UDO
also includes procedures for public input, sanctions to ensure compliance, requirements
for construction site operators to implement appropriate erosion and sediment control
practices, review of site plans, and procedures for site inspection and enforcement of
control measures. This City program is authorized within the corporate limits and the
Extra Territorial Jurisdiction (ETJ) area.
• Post-Construction Site Runoff Controls - BMPs to manage stormwater runoff from
development that drains to the City’s MS4, to provide a mechanism requiring long -term
operation and maintenance of BMPs, and to ensure controls are in place to minimize
water quality impacts. This City program is authorized within the corporate limits and
the ETJ.
• Pollution Prevention and Good Housekeeping for Municipal Operations - BMPs to
prevent or reduce stormwater pollution from municipal operations through pollution
prevention and good housekeeping techniques.
• Program to Monitor and Evaluate Stormwater Discharges to Municipal Systems – BMPs
to monitor and control pollutants in stormwater discharges to the City’s MS4 from
hazardous waste treatment, storage, disposal, and recovery facilities, and from
industrial facilities subject to Section 313 of Title III of the Superfund Amendments and
Reauthorization Act of 1986 (SARA), and from industrial facilities the City determines are
contributing or have a potential to contribute substantial pollutant loading to the
municipal stormwater system.
• Water Quality Assessment and Monitoring - BMPs to evaluate the impacts on water
quality through the implementation of a water quality assessment and monitoring plan.
• Total Maximum Daily Loads (TMDLs) - BMPs to evaluate strategies and tailor practices to
address pollutants of concern in TMDL-listed streams.
The SWMP will be evaluated annually and updated, if necessary, throughout the permit
reporting period to ensure that the elements and minimum measures it contains continue to
adequately provide for permit compliance and the community’s needs. Upon approval of
updates to the SWMP 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.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Section 2: MS4 Information
The following sections include general information about the City’s
administrative organization, the storm sewer system, and the MS4
receiving waters. These sections inform the development of the
stormwater program and successful permit program implementation.
2.1 Permitted MS4 Area
This SWMP applies throughout the corporate limits of the City, including all regulated activities
associated with the discharge of stormwater from the MS4. Additionally, the City is authorized
to operate, administer, and enforce the construction site runoff control and post construction
site runoff control programs within the ETJ. The map below (Figure 1) shows the corporate
limits and the ETJ area of the City as of the date of this document.
Figure 1. City of Raleigh Corporate Limits and ETJ
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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2.2 Existing MS4 Mapping
In fiscal year 2014, the City conducted an MS4 mapping program which compiled and
documented all known MS4 infrastructure and outfalls within the City corporate limit and ETJ in
a geographic information system (GIS). Since this initial effort, the City has continually updated
the MS4 mapping, which includes pipes, ditches, inlets, catch basins, culverts, headwalls,
channels, manholes, and outfalls, including sizes and inverts. The MS4 mapping updates are
incorporated into the illicit discharge detection and elimination program, which is described in
Section 6.
The condition of the MS4 stormwater inlets and conveyance system are evaluated by the City
storm sewer system inspection and maintenance program, which is described in Section 9.
2.3 Receiving Waters
The City MS4 is located within the Neuse River Basin and discharges directly into receiving
waters as listed in Table 1 below. Applicable water quality standards listed below were
compiled from the following North Carolina Department of Environmental Quality (DEQ)
sources; Waterbody Classification Map
(https://ncdenr.maps.arcgis.com/apps/webappviewer/index.html?id=6e125ad7628f494694e25
9c80dd64265) and the most recent EPA-approved DEQ Final 303(d) List (2018)
(https://files.nc.gov/ncdeq/Water%20Quality/Planning/TMDL/303d/2018/2018 -NC-303-d--List-
Final.pdf). TMDLs are addressed in Section 2.5 and Section 12.
The water quality classifications referenced in Table 1 include:
• B: Primary Recreation, Fresh Water
• C: Aquatic Life, Secondary Recreation, Fresh Water
• CA: Critical Area
• NSW: Nutrient Sensitive Waters
• WS-III: Water Supply III – Moderately Developed
• WS-IV: Water Supply IV – Highly Developed
Table 1. MS4 Receiving Waters
Receiving Water Name Stream Index/
Assessment Unit
(AU) Number
Water Quality
Classification
303(d) Listed
Parameters of
Interest
Neuse River 27-(20.5) WS-IV; NSW N/A
Neuse River 27-(22) WS-IV; NSW; CA Copper
PCB Fish Tissue
Advisory
Neuse River 27-(22.5) C; NSW Copper
PCB Fish Tissue
Advisory
Honeycutt Creek 27-20-(1) WS-IV;NSW N/A
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Receiving Water Name Stream Index/
Assessment Unit
(AU) Number
Water Quality
Classification
303(d) Listed
Parameters of
Interest
Unnamed Tributary at
Camp New Life
27-20.5-(2) WS-IV;NSW N/A
Richland Creek 27-21-(1.5) WS-IV; NSW N/A
Toms Creek (Mill Creek) 27-24 C; NSW Benthos
Perry Creek (Greshams
Lake)
27-25-(1) B; NSW N/A
Perry Creek 27-25-(2) C; NSW N/A
Unnamed Tributary near
Neuse
27-25-3-(1) B; NSW N/A
Unnamed Tributary near
Neuse
27-25-3-(2) C; NSW N/A
Harris Creek (Peeples
Creek) (Wake Crossroads
Lake)
27-26 C; NSW N/A
Hodges Mill Creek (Lake
Mirl)
27-26-1-(1) B; NSW N/A
Hodges Mill Creek 27-26-1-(2) C; NSW N/A
Beaverdam Creek 27-27 C; NSW N/A
Rocky Creek 27-28 C;NSW N/A
Beaverdam Creek (east side
of Neuse River) (Neuseco
Lake, Beaverdam Lake)
27-29 C;NSW N/A
Bridges Creek (Bridges Lake) 27-30 C;NSW N/A
Milburnie Creek (Milburnie
Lake)
27-31 C;NSW N/A
Crabtree Creek (Crabtree
Lake)
27-33-(3.5) B; NSW PCB Fish Tissue
Advisory
Turbidity
Crabtree Creek 27-33-(10) C;NSW PCB Fish Tissue
Advisory
Brier Creek 27-33-4 C; NSW PCB Fish Tissue
Advisory
Little Brier Creek 27-33-4-1 C; NSW PCB Fish Tissue
Advisory
Haleys Branch 27-33-7 C; NSW N/A
Reedy Creek (Reedy Creek
Lake)
27-33-8 B; NSW N/A
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Receiving Water Name Stream Index/
Assessment Unit
(AU) Number
Water Quality
Classification
303(d) Listed
Parameters of
Interest
Sycamore Creek (Big Lake) 27-33-9 B; NSW N/A
Pots Branch 27-33-9-1 B; NSW N/A
Turkey Creek 27-33-9-2 B; NSW N/A
Richlands Creek 27-33-11 C; NSW Benthos
Hare Snipe Creek (Lake
Lynn)
27-33-12-(1) B; NSW Benthos
Hare Snipe Creek 27-33-12-(2) C; NSW Benthos
House Creek 27-33-13 C; NSW N/A
Mine Creek 27-33-14 C; NSW Benthos
Beaverdam Creek 27-33-15 C; NSW N/A
Southwest Prong
Beaverdam Creek
27-33-15-1 C; NSW N/A
Southeast Prong
Beaverdam Creek
27-33-15-2 C; NSW N/A
Oxford Branch 27-33-16 C; NSW N/A
Big Branch 27-33-17 C; NSW N/A
Hog Pen Branch 27-33-17-1-(1) B; NSW N/A
Hog Pen Branch 27-33-17-1-(2) C;NSW N/A
Pigeon House Branch 27-33-18 C; NSW N/A
Williamson Branch 27-33-18-1 C; NSW N/A
Cemetery Branch 27-33-18-2 C; NSW N/A
Bridges Branch 27-33-19 C; NSW N/A
Marsh Creek 27-33-20 C; NSW Benthos
Beaman Lake 27-33-20-1 C; NSW N/A
Pews Pond 27-33-20-2 C; NSW N/A
Longview Branch 27-33-21 C; NSW N/A
Carolina Lake 27-33-22 C; NSW N/A
Walnut Creek 27-34-(1) C; NSW PCB Fish Tissue
Advisory
Walnut Creek (Lake
Johnson)
27-34-(1.5) B;NSW PCB Fish Tissue
Advisory
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Receiving Water Name Stream Index/
Assessment Unit
(AU) Number
Water Quality
Classification
303(d) Listed
Parameters of
Interest
Walnut Creek 27-34-(1.7) C; NSW PCB Fish Tissue
Advisory
Fish Community
Walnut Creek (Lake Raleigh) 27-34-(3.5) B;NSW PCB Fish Tissue
Advisory
Walnut Creek 27-34-(4) C;NSW PCB Fish Tissue
Advisory
Fish Community
Simmons Branch 27-34-2 C; NSW N/A
Bushy Creek 27-34-3 C; NSW N/A
Rocky Branch 27-34-6 C; NSW Benthos
PCB Fish Tissue
Advisory
Wildcat Branch 27-34-7 C; NSW N/A
Watson Branch 27-34-8 C; NSW N/A
Chavis Branch 27-34-8-1 C; NSW N/A
Gatling Branch 27-34-9 C; NSW N/A
Big Branch 27-34-11 C; NSW N/A
Poplar Branch 27-34-11-1 C; NSW N/A
Little Arm Branch 27-34-11-2 C; NSW N/A
Unnamed Tributary to Swift
Creek (Silver Lake)
27-43-5-(1) WS-III; B; NSW N/A
Unnamed Tributary to Swift
Creek (Yates Mill Pond)
27-43-5-(1.5) WS-III;NSW N/A
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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2.4 MS4 Interconnection
The City’s MS4 is interconnected with two regulated MS4s and conveys stormwater runoff to
the North Carolina Department of Transportation (NCDOT) and North Carolina State University
(NCSU) storm sewer systems, as determined by the City’s storm sewer system conveyance data.
There are multiple points of interconnection between the City and NCDOT at the edge of the
roadway rights-of-way and the City and NCSU at the property boundaries within the City’s
corporate limit.
2.5 Total Maximum Daily Loads
The TMDLs listed in Table 2 have been approved by EPA within the MS4 receiving waters, as
determined by the map and list provided on the DEQ Modeling and Assessment/TMDL web
page (https://deq.nc.gov/about/divisions/water-resources/planning/modeling-
assessment/tmdls). The table also indicates whether the approved TMDL has an individual
numeric stormwater Waste Load Allocation (WLA) assigned to the City permitted MS4, and
whether a water quality recovery program has been implemented to address the WLA.
Table 2. Summary of EPA-Approved TMDLs or Nutrient Management Strategies
Water Body
Name
TMDL
Pollutant(s) of
Concern
Assigned
Numeric MS4
WLA (Y/N)
Water Quality Recovery Program
(Y/N)
Pigeon House
Branch
Copper and
Fecal Coliform
No No
Perry Creek Benthos No No
Falls Lake Nitrogen and
Phosphorus
No City participating in 4B nutrient
management strategy
Neuse River
Estuary
Nitrogen No City is implementing the State
Nutrient Sensitive Waters
Management Strategy
2.6 Industrial Facility Discharges
The City corporate limit encompasses multiple industrial facilities which hold NPDES Industrial
Stormwater Permits. The list of permitted industrial facilities within the City is updated annually
as required by Part II Section H.2(a). The City will provide program results in the City’s annual
reporting, as documented in Section 10.
2.7 Non-Stormwater Discharges
The water quality impacts of allowable non-stormwater discharges, documented in Part I.H.1 of
the permit, have been evaluated by the City as summarized in Table 3 below. The non-
permitted non-stormwater discharges listed as incidental do not significantly impact water
quality based upon historical illicit discharges and City staff judgement . The two sources
identified below with potential for significant water quality impacts include residential and
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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charity car washing and dechlorinated swimming pool discharges. These non-stormwater
discharges are primarily addressed by the City through their public outreach and education
program, documented in Section 4.
Table 3. Non-Stormwater discharges
Non-Stormwater Discharge Water Quality Impacts
Water line and fire hydrant flushing Incidental
Landscape irrigation Incidental
Diverted stream flows Incidental
Rising groundwater Incidental
Uncontaminated groundwater infiltration Incidental
Uncontaminated pumped groundwater Incidental
Uncontaminated potable water sources Incidental
Foundation drains Incidental
Air conditioning condensate Incidental
Irrigation waters Incidental
Springs Incidental
Water from crawl space pumps Incidental
Footing drains Incidental
Lawn watering Incidental
Residential and charity car washing Potential
Flows from riparian habitats and wetlands Incidental
Dechlorinated swimming pool discharges Potential
Street wash water Incidental
Flows from firefighting activities Incidental
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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2.8 Target Pollutants and Sources
In addition to the parameters of interest identified through the 303(d) listings and the TMDLs
described in Sections 2.3 and 2.5, target pollutants and sources within the City’s MS4 will be
reviewed annually and identified based on inspections and enforcement activities within the
MS4 program elements. The City will provide annual program target pollutants and results in
the City’s annual reporting, as documented in Section 13.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Section 3: Program Implementation
The section corresponds to Part II Section A of the MS4 permit. The
City’s program organization and funding are necessary elements for
implementing the remaining elements of MS4 program. Annual
reporting metrics are included in Table 4.
3.1 City Ordinances
The current City regulations, ordinances, policies, and procedures can be accessed on the City
website at: https://raleighnc.gov/services/government/city-code and
https://raleighnc.gov/business/content/PlanDev/Articles/Zoning/ZoningRemapping.html.
3.2 Program Funding and Budget
In accordance with the MS4 permit, the City maintains adequate funding to implement and
manage the provisions of the SWMP and comply with the permit requirements. Multiple
sources of funding are utilized by the responsible parties to achieve permit compliance.
Program elements are primarily funded by the City stormwater utility fee. Additional sources of
funding include plan review and permit application fees, and the City general fund may be
utilized for pollution prevention and good housekeeping activities by owning departments.
Further fiscal analysis and investigation of funding options (such as a general fund allocation or
a change to the stormwater fee) will be conducted annually to maintain adequate funds to
meet program needs.
3.3 Organizational Structure
The City MS4 program is implemented by multiple departments with oversight and
coordination led by the Stormwater Management Division, which is within the Engineering
Services Department. The responsible parties are identified in organizational charts, Figures 2
and 3. These charts depict responsible parties for MS4 permit implementation and do not
reflect the entire City organizational structure. The responsible parties also are identified by
program element and BMP in Sections 4 through 12. Some responsible departments have been
identified for having a direct role in implementing the SWMP, such as the SCM Program, and
others have an ancillary role (i.e., implement pollution prevention and good housekeeping
practices or provide program support activities, such as Information Technology).
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Figure 2. City of Raleigh MS4 Permit Implementation Responsible Departments Organizational Chart
Mayor and City
Council
City Attorney’s
Office City Manager
Convention
Center and
Performing Arts
Communications
Emergency
Communications
Center
Engineering
Services
Stormwater
Management
Division
Fire Information
Technology
Office of
Emergency
Management
Parks, Recreation
and Cultural
Resources
Police Solid Waste
Services Transportation
Field Services
Public Utilities
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Figure 3. City of Raleigh Stormwater Management Division MS4 Permit Implementation Organizational Chart
Stormwater Program
Manager
Stormwater
Administrator –
Planning and Business
Operations
Drainage Assistance
Program
Emergency Repairs and
Stormwater
Maintenance
Coordination
Asset Management
Program
Mapping, Inventory,
GIS, and Asset
Management
Business Services
Program
Administrative Support
Customer Service
Stormwater
Administrator –
Programs
Plan Review SCM Program Development
Inspections Program Water Quality Program
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
Public Education and
Engagement
Water Quality
Monitoring, Volunteer
Programs, and Project
Development
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Table 4. Program Element – Program Implementation
Program Element
Program Actions Responsible
Party(ies)
Annual reporting Metric(s)
FY2021 FY2022 – FY 2026
Part II Section A.1 The permittee will maintain adequate legal mechanism, such as regulations, ordinances,
policies, and procedures to implement all provisions of the SWMP. If major modifications are proposed in the
timeline for development of these authorities, the Division must be notified of the changes, the reasons for the
changes, and justifications for the changes. The Division may comment on the modifications and require changes
as allowed by Federal and State and as deemed necessary to assure appropriate implementation of the SWMP.
The Permittee shall obtain prior approval of changes to the SWMP that eliminate or reduce any program or
measure in an approved SWMP.
Review regulations, ordinances,
policies, and procedures and
update, if necessary.
Review regulations, ordinances,
policies, and procedures and
update, if necessary.
Stormwater
Program Manager
Water Quality
Manager
City Attorney’s
Office
• Report modifications to the
regulations, ordinances, policies,
and procedures
Part II Section A.2 The permittee will implement provisions of the SWMP and evaluate the performance and
effectiveness of the program components.
Evaluate program effectiveness,
as described in Section 13
Evaluate program
effectiveness, as described in
Section 13
Stormwater
Program Manager
Water Quality
Manager
• N/A, annual reporting of
program effectiveness is
described in Section 13
Part II Section A.3 The permittee is required to keep the SWMP up to date with annual updates if any changes
are warranted. The permittee is required to make available its SWMP to the Division upon request. At a
minimum, the permittee shall include 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. The Division may review reports submitted by the permittee to assure that the
SWMP is implemented appropriately to address the requirements of the permit. The Division may require
modifications to any part of the permittee's SWMP where deficiencies are found. If modifications to the SWMP
are necessary, then the Division will notify the permittee of the need to modify the SWMP to be consistent with
the permit and will establish a deadline to finalize such changes to the program.
Update the SWMP to
incorporate current permit
requirements and program
components.
Review the SWMP and update,
if necessary.
Stormwater
Program Manager
Water Quality
Manager
• Report modifications to the
SWMP and make available to the
Division upon request
Part II Section A.4 The permittee shall maintain, and make available to the Division upon request, written
procedures for implementing the six minimum control measures. Written procedures shall identify specific
action steps, schedules, resources, and responsibilities for implementing the six minimum measures.
Maintain written procedures as
documented in Sections 4
through 12.
Maintain written procedures as
documented in Sections 4
through 12.
Stormwater
Program Manager
Water Quality
Manager
• N/A, written procedures will be
available to DEQ upon request
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
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Section 4: Public Education and
Outreach
As documented in Part II Section B of the MS4 permit, the objectives of
the public outreach and education program are to make educational
materials available to the community, conduct public outreach
activities, raise public awareness on the causes and impacts of
stormwater pollution, and inform the public on actions they can take to
reduce or prevent stormwater pollution. This is achieved through a
variety of BMPs detailed in Table 5.
Describe target pollutants and target pollutant sources. In addition to parameters of interests
identified in Table 1, Table 2, and Table 3, the City reviews datasets, such as citizen complaints,
illicit discharges, and other program activities to identify target pollutants to focus the public
education and outreach materials and activities.
Describe target audiences. Target audiences may be defined by target parameters of interest
and associated sources. The City identifies target audiences by reviewing the types of activities
correlated to citizen complaints, illicit discharges, and other activities that may cause pollutants
to reach the storm sewer system.
Informational web site. The City maintains a stormwater website located at
https://raleighnc.gov/stormwater.
Distribute public education materials to identified user groups. The City utilizes multiple
mechanisms to provide educational materials to identified user groups, including attending City
events to engage the general public, utilization of social media platforms, mailing materials to
target audiences, and providing materials during response to complaint calls. Additionally, the
City participates in the Clean Water Education Partnership (CWEP), which conducts regional
media campaigns and develops educational materials. Media campaigns and materials include
television public service announcements, radio public service announcements, print
advertisements, and a stormwater education website at https://nc-cleanwater.com/.
Promote and maintain Hotline(s) or Helpline(s). The City maintains a public helpline at
919.996.3940, which is included on education and outreach materials and the website. The
helpline is staffed by multiple stormwater administrative staff during regular business hours.
Implement a Public Outreach and Education Program. The City implements a program to
educate the general public, provide classroom educational activities, and target pollutant
sources and activities, as informed by other MS4 permit program elements.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
22
Table 5. BMP Measurable Goals for the Public Education and Outreach Program
Permit Reference/BMP Measurable Goals
Program Actions
Responsible Party(ies) Annual reporting
Metric(s) FY2021 FY2022 – FY 2026
Part II Section B.2 (a).
Describe target pollutants
and sources
Describe the target pollutants and target pollutant sources the
permittee’s public education program is designed to address and
why they are an issue.
Develop Public Education and Engagement
Plan, documenting the existing outreach and
education program implemented by City staff,
including process for identifying target
pollutants and sources.
Implement the public education and outreach
program utilizing the Public Education and
Engagement Plan and the Communications
Plan.
Notify the Water Quality Manager of program
modifications.
Review and update target
pollutants and sources in the Public
Education and Engagement Plan.
Implement the public education
and outreach program utilizing the
Public Education and Engagement
Plan and the Communications Plan.
Notify the Water Quality Manager
of program modifications.
Stormwater Program
Manager
IDDE, PPGH and Industrial
Inspection Programs &
NPDES Permit
Compliance
Public Education and
Engagement
Communications
• Report target
pollutants and the
associated sources
• Report reason each
target pollutant was
chosen
Part II Section B.2 (b).
Describe target audiences
Describe the target audiences likely to have significant stormwater
impacts and why they were selected.
Develop Public Education and Engagement
Plan, documenting the existing outreach and
education program implemented by City staff,
including process for identifying target
audiences for each pollutant and source.
Implement the public education and outreach
program utilizing the Public Education and
Engagement Plan and the Communications
Plan.
Notify the Water Quality Manager of program
modifications.
Review and update target
audiences associated with each
pollutant and source in the Public
Education and Engagement Plan.
Implement the public education
and outreach program utilizing the
Public Education and Engagement
Plan and the Communications Plan.
Notify the Water Quality Manager
of program modifications.
Stormwater Program
Manager
IDDE, PPGH and Industrial
Inspection Programs &
NPDES Permit
Compliance
Public Education and
Engagement
Communications
• Report target
audiences identified
for each target
pollutant.
• Report reason each
target audience was
chosen
Part II Section B.2 (c).
Informational website
The permittee shall promote and maintain an internet web site
designed to convey the program’ s message.
Maintain and update the stormwater program
webpage.
Notify the Water Quality Manager of program
modifications.
Maintain and update the
stormwater program webpage.
Notify the Water Quality Manager
of program modifications.
Stormwater Program
Manager
Communications
• Report number of
hits to stormwater
website
Part II Section B.2 (d).
Distribute public education
materials to identified user
groups
Distribute general stormwater educational material to appropriate
target groups as likely to have a significant stormwater impact.
Instead of developing its own materials, the permittee may rely on
state-supplied Public Education and Outreach materials, as
available, when implementing its own program.
Distribute public education materials, as
described in the Public Education and
Engagement Plan.
Notify the Water Quality Manager of program
modifications.
Distribute public education
materials , as described in the
Public Education and Engagement
Plan.
Notify the Water Quality Manager
of program modifications.
Stormwater Program
Manager
Public Education and
Engagement
• Report number of
educational
materials distributed
by type
Part II Section B.2 (e).
Promote and maintain
hotline(s) or helpline(s)
Promote and maintain a stormwater hotline(s) or helpline(s) for
the public to request information about stormwater, public
involvement & participation, and to report illicit connection and
discharges, etc.
Maintain the stormwater administration
helpline to receive public complaints.
Notify the Water Quality Manager of program
modifications.
Maintain the stormwater
administration helpline to receive
public complaints.
Stormwater Program
Manager
Administrative Support
Customer Service
• Report number of
calls handled by
helpline by type of
call
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
23
Permit Reference/BMP Measurable Goals
Program Actions
Responsible Party(ies) Annual reporting
Metric(s) FY2021 FY2022 – FY 2026
Notify the Water Quality Manager
of program modifications.
Part II Section B.2 (f).
Implement a public
education and outreach
program
The permittee’s outreach program, including those elements
implemented locally or through a cooperative agreement, shall
include a combination of approaches designed to reach the target
audiences. For each media, event, or activity, including those
elements implemented locally or through a cooperative agreement
the permittee shall estimate and record the extent of exposure.
Develop Public Education and Engagement
Plan, documenting the existing outreach and
education program implemented by City staff.
Review and update the Communications Plan, if
necessary.
Implement the public education and outreach
program utilizing the Public Education and
Engagement Plan and the Communications
Plan.
Notify the Water Quality Manager of program
modifications.
Review and update the Public
Education and Engagement Plan
and Communications Plan, if
necessary.
Implement the public education
and outreach program utilizing the
Public Education and Engagement
Plan and the Communications Plan.
Notify the Water Quality Manager
of program modifications.
Stormwater Program
Manager
Public Education and
Engagement
Communications
• Report City events
and number of
handouts
distributed at each
event
• Report City’s in-
school events and
number of
participants
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
24
Section 5: Public Involvement and
Participation
As documented in Part II Section C of the MS4 permit, the objectives of
this program are to provide opportunities for the public to participate
in program development and implementation and to comply with
applicable state and local public notice requirements. This is achieved
through the application of a variety of BMPs detailed in Table 6.
Volunteer community involvement program. The City promotes multiple volunteer
opportunities on its website, including Adopt-a-Stream, storm drain marking, and the volunteer
water quality monitoring program.
Establish a mechanism for public involvement. The City engages the public through the
Stormwater Management Advisory Commission (SMAC). The SMAC, which is comprised of City
residents, meets with Stormwater Management Division staff to discuss program activities, and
receive feedback to inform Stormwater Management Division decisions.
Establish Hotline(s) or Helpline(s). As described in Section 4, the City maintains a public
helpline at 919.996.3940.
Public review and comment. Once approved by DEQ, the City will make the current version of
the SWMP available to the public on their website. A review and comment period will be
posted for the public input before finalization of updates to the SWMP. Public input will be
received during a public hearing.
Public notice. The City complies with public notice requirements when implementing their
public involvement and participation program. Public notice is provided for public engagement
in SMAC meetings.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
25
Table 6. BMP Measurable Goals for the Public Involvement and Participation Program
Permit Reference/BMP Measurable Goals
Program Actions
Responsible Party(ies)
Reporting Metric(s)
FY2021 FY2022 – FY 2026
Part II Section C.2 (a).
Volunteer community
involvement program
The permittee shall include and promote volunteer
opportunities designed to promote ongoing citizen
participation.
Maintain the community
volunteer opportunities
Notify the Water Quality
Manager of program
modifications.
Maintain the volunteer
community opportunities
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Water Quality Monitoring,
Volunteer Programs, and
Project Development
• Report number of participants in each
City volunteer opportunity
Part II Section C.2 (b).
Establish a mechanism for
public involvement
The permittee shall provide and promote a mechanism for
public involvement that provides for input on stormwater
issues and the stormwater program.
Conduct meeting(s) with the
SMAC
Notify the Water Quality
Manager of program
modifications.
Conduct meeting(s) with the
SMAC
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
• Report meeting dates for SMAC
meetings and topics of discussion
pertaining to MS4 compliance
Part II Section C.2 (c).
Establish hotline(s) or
helpline(s)
The permittee shall promote and maintain a stormwater
hotline(s) or helpline(s) for the public to request information
about stormwater, public involvements & participation, and to
report illicit connection and discharges, etc.
Maintain the stormwater
administration helpline to
receive public complaints.
Notify the Water Quality
Manager of program
modifications.
Maintain the stormwater
administration helpline to
receive public complaints.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Administrative Support
Customer Service
• N/A, see helpline reporting metrics in
Table 5.
Part II Section C.2 (d). Public
review and comment
The permittee shall make their most recent Stormwater
Management Plans available for public review and comment
Create a webpage for the
SWMP on the public website.
Publicize a comment period for
updates to the SWMP.
Notify the Water Quality
Manager of program
modifications.
Maintain the webpage for the
most recent edition of the
SWMP.
Publicize a comment period for
updates to the SWMP.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Communications
• Report webpage link for SWMP
• Report mechanisms used for public
review and comment on the SWMP
Part II Section C.2 (e). Public
notice
Pursuant to 40 CFR 122.34 the permittee must, at a minimum,
comply with State, Tribal and local public notice requirements
when implementing a public involvement / participation
program
Place legal public notice to
advertise public review and
comment opportunities, as
needed.
Notify the Water Quality
Manager of program
modifications.
Place legal public notice to
advertise public review and
comment opportunities, as
needed.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Water Quality Manager
• If public notice occurred, report
mechanism(s) used to advertise public
review and comment and public
notice period.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
26
Section 6: Illicit Discharge Detection and
Elimination (IDDE)
As documented in Part II Section D of the MS4 permit, the objectives of
this program are to detect and eliminate illicit discharges to the City’s
MS4, address significant contributors of pollutants to the MS4,
implement appropriate enforcement procedures and actions, maintain
a map showing the City’s major MS4 outfalls to Waters of the State,
and inform employees, businesses, and the general public of hazards
associated with illegal discharges. These objectives are achieved
through a variety of BMPs detailed in Table 7.
Maintain appropriate legal authorities. The City maintains legal authorities to operate their
program as documented in Section 3.1.
Maintain a storm sewer system base map of the major MS4 outfalls. The City maintains a
storm sewer base map of major MS4 outfalls, as described in Section 2.2.
Inspection and detection program to detect dry weather flows at MS4 outfalls. The IDDE
program is conducted by the City under the guidelines provided in the most recent version of
the IDDE and dry weather screening standard operating procedures (SOPs) to specify a
timeframe for monitoring, identify number of outfalls for screening, and areas to be targeted
for inspection.
Employee training. Employee training on detection and reporting of illicit discharges is
conducted regularly to ensure that City staff are able to recognize and report illicit discharges.
Training is conducted virtually, in-person classroom setting, and by other means.
Maintain a public reporting mechanism(s). The public may report an illicit discharge via the
stormwater helpline, the City’s illegal discharge email address, and other mechanisms
documented on the City website and outreach materials.
Documentation. The City maintains documentation for each illicit discharge investigation for a
minimum of five years, including the date of the activity and remediation activities that
occurred.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
27
Table 7. BMP Measurable Goals for the IDDE Program
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Annual Reporting FY2021 FY2022 – FY 2026
Part II Section D.2 (a).
Maintain appropriate legal
authorities
Maintain adequate ordinance or other legal authorities to
prohibit illicit connections and discharges and enforce the
approved IDDE program
Maintain and enforce public ordinances.
Update, if necessary, to maintain legal
authority.
Notify the Water Quality Manager of program
modifications.
Maintain and enforce public ordinances.
Update, if necessary, to maintain legal
authority.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
Water Quality Manger
City Attorney’s Office
• N/A, see Table 4 for
reporting of legal
authorities.
Part II Section D.2 (b).
Maintain a storm sewer
system base map of major
MS4 outfalls
The permittee shall maintain a current map showing
major outfalls and receiving streams
Evaluate outfall and receiving stream
definitions with current program
recommendations and revise, if necessary.
Notify the Water Quality Manager of program
modifications.
Maintain storm sewer system base map in
GIS and update annually as new inventory
is added.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
Mapping, Inventory,
GIS, and Asset
Management
• Report number of
major outfalls
• Provide overview map
of receiving streams
and major outfalls
Part II Section D.2 (c).
Inspection/detection program
to detect dry weather flows at
MS4 outfalls
Maintain written procedures and/or SOPs for detecting
and tracing the sources of illicit discharges and for
removing the sources or reporting the sources to the State
to be properly permitted. Written procedures and/or
SOPs shall specify a timeframe for monitoring and how
many outfalls and the areas that are to be targeted for
inspections.
Develop IDDE Plan from existing field forms
and SOPs.
Notify the Water Quality Manager of program
modifications.
Implement IDDE Plan.
Review and update IDDE Plan as needed.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report number of dry
weather inspections
completed and results
Part II Section D.2 (d).
Employee training
Conduct training for appropriate municipal staff on
detecting and reporting illicit connections and discharges.
Document the existing employee training
program in a Training Plan, including who
should receive training, types of training, and
frequency.
Conduct employee training and document
attendance.
Notify the Water Quality Manager of program
modifications.
Review the employee Training Plan and
update as needed
Conduct employee training and document
attendance.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report number of staff
who completed IDDE
training and types of
training provided
Part II Section D.2 (e).
Maintain a public reporting
mechanism(s)
Maintain and publicize reporting mechanism(s) for the
public to report illicit connections and discharges
Maintain reporting helpline and reporting
email address (IllegalDischarge@raleighnc.gov).
Notify the Water Quality Manager of program
modifications.
Maintain reporting helpline and reporting
email address
(IllegalDischarge@raleighnc.gov).
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
Administrative
Support Customer
Service
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report number of calls
and emails received
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
28
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Annual Reporting FY2021 FY2022 – FY 2026
Part II Section D.2 (f).
Documentation
The permittee shall document the date of investigations,
any enforcement action(s) or remediation that occurred.
Maintain IDDE inspection records, notices of
violations and compliance and other program
records.
Notify the Water Quality Manager of program
modifications.
Maintain IDDE inspection records, notices
of violations and compliance, and other
program records.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report date of
investigations, any
enforcement action(s)
or remediation that
occurred.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
29
Section 7: Construction Site Runoff
Controls
As documented in Part II Section E of the MS4 permit, the objectives of
this program are to:
• Reduce pollutants in stormwater runoff from construction activities disturbing one or
more acres of land, or less than an acre within a larger common plan of development
located within Raleigh’s ETJ. The City
• Provide procedures for public input, sanctions to ensure compliance, requirements for
construction site operators to implement appropriate erosion and sediment control
practices, review of site plans which incorporate consideration of potential water quality
impacts, and procedures for site inspection and enforcement of control measures.
• A locally delegated program that meets state requirements.
Delegated local program. The erosion and sediment control program is delegated to the City by
DEQ. The City adopted an erosion and sediment control ordinance, originally, as part of its
development regulations, and recodified on September 1, 2013 under the City’s UDO, Erosion
and Sedimentation Control. The UDO is updated, if necessary, to meet DEQ’s minimum
requirements. The City’s UDO exceeds the MS4 permit requirement, requiring BMPs to reduce
pollutants in stormwater runoff from construction activities disturbing 12,000 sq ft or more of
land surface. The UDO is available on the website provided in Section 3.1.
Plan reviews. Stormwater, erosion and sediment control plans for new development and
redevelopment within the City are reviewed by Plan Review staff for compliance with the UDO.
This includes associated calculations and details for proposed stormwater devices.
Construction inspections. The City Development Inspections Program staff inspects sites for
compliance with stormwater, erosion and sedimentation control, buffer, water-supply
watershed, and floodplain aspects of approved plans and compliance with the UDO.
These objectives are achieved through a variety of BMPs detailed in Table 8.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
30
Table 8. Program Elements for Construction Site Runoff Controls
Program Element
Program Actions
Responsible Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section E.2.a. The permittee has a delegated or authorized Sediment and
Erosion Control Program. As such, to the extent authorized by law, the permittee is
responsible for compliance with the Sediment Pollution Control Act of 1973 and
Chapter 4 of Title 15A of the North Carolina Administrative Code. The delegated or
authorized Sediment and Erosion Control Program effectively meets the MEP
standard for Construction Site Runoff Controls by permitting and controlling
development activities disturbing one or more acres of land surface and those
activities less than one acre that are part of a larger common plan of development
as authorized under the Sediment Pollution Control Act of 1973 and Chapter 4 of
Title 15A of the North Carolina Administrative Code.
Create a standard construction site inspection
guidance and inspection form that documents
existing procedures for use in the construction
inspection process.
Perform plan review and construction site
inspections and appropriate enforcement
activities.
Notify the Water Quality Manager of program
modifications.
Implement standard construction site
inspection procedures.
Perform plan review and construction site
inspections and appropriate enforcement
activities.
Notify the Water Quality Manager of program
modifications.
Stormwater Program
Manager
Development Inspections
Program
Plan Review
• Report number of
inspections and
enforcement activities
conducted
Part II Section E.2.b. The NCG010000 permit establishes requirements for
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 impacts to water quality.
Perform construction site inspections for the
erosion and sediment control program and
appropriate enforcement activities that meet
requirements of Part II Section E.2.a.
Perform illicit discharge investigations when
reported by City staff or residents.
Notify the Water Quality Manager of program
modifications.
Perform construction site inspections for the
erosion and sediment control program and
appropriate enforcement activities that meet
requirements of Part II Section E.2.a.
Perform illicit discharge investigations when
reported by City staff or residents.
Notify the Water Quality Manager of program
modifications.
Stormwater Program
Manager
Development Inspections
Program
IDDE, PPGH and Industrial
Inspection Programs &
NPDES Permit Compliance
• N/A, see reporting
metrics in Part II Section
E.2.a and Table 7.
Part II Section E.2.c. The permittee shall provide and promote a means for the public
to notify the appropriate authorities of observed erosion and sedimentation
problems. The permittee may implement a plan promoting the existence of the DEQ
“Stop Mud” hotline (1-866- STOPMUD) to meet the requirements of this paragraph.
Maintain public helpline.
Notify the Water Quality Manager of program
modifications.
Maintain public helpline.
Notify the Water Quality Manager of program
modifications.
Stormwater Program
Manager
Administrative Support
Customer Service
• N/A, see reporting
metrics in Table 5
Part II Section E.2.d. For new development and redevelopment projects to be built
within the permittee’s planning jurisdiction by entities with eminent domain
authority, the permittee shall, to the maximum extent practicable, coordinate the
approval of the construction site runoff control with the DEMLR.
City to coordinate with DEQ, if necessary.
Notify the Water Quality Manager of program
modifications.
City to coordinate with DEQ, if necessary.
Notify the Water Quality Manager of program
modifications.
Stormwater Program
Manager
Plan Review
• Report number of plans
that required DEQ
coordination
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
31
Section 8: Post-Construction Site Runoff
Controls
As documented in Part II Section F of the MS4 permit, the objectives of
this program are to manage stormwater runoff from development that
disturbs one acre or more of land surface within the City’s ETJ, provide
a mechanism requiring long-term operation and maintenance of
stormwater control measures (SCMs), and ensure controls are in place
to minimize water quality impacts. These objectives are achieved
through the application of a variety of BMPs detailed in Table 9.
Nutrient Sensitive Waters. The City implements the Neuse River Basin Nutrient Sensitive
Waters Management Strategy throughout the City ETJ.
Post-construction stormwater management program. The City maintains appropriate
ordinances for implementing the program, as documented in Section 3.1.
Strategies which include SCMs appropriate for the MS4. The City requires that SCMs are
designed to meet DEQ requirements, as required in the City UDO, and designs are reviewed by
Plan Review staff prior to construction approval. SCM construction is confirmed by qualified
third-party professionals through an as-built submittal process which requires City acceptance
prior issuance of the Certificate of Occupancy. To confirm adequate operations and
maintenance of SCMs, the City requires annual inspection reports by qualified professionals.
The City maintains inspection records of each SCM and conducts enforcement activities, if
necessary if SCMs are deemed noncompliant.
Deed restrictions and protective covenants. The City provides mechanisms to record deed
restrictions and protective covenants in the City UDO, as documented in Section 3.1.
Operations and maintenance plan. The City requires an operations and maintenance plan for
each SCM during the design review process. The City maintains records of the plan for each
SCM.
Educational materials and training for developers. The City provides periodic training for
contractors and developers.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
32
Table 9. BMP Measurable Goals for Post Construction Site Runoff Control
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section F.2 (a). Post-
construction stormwater
management program
Maintain an ordinance (or similar regulatory mechanism) that authorizes a
program to address stormwater runoff from new development and
redevelopment to the extent allowable under the State law
Review UDO and Stormwater Design
Manual and make documents
available for developers and
construction site operators.
Notify the Water Quality Manager
of program modifications.
Review UDO and Stormwater
Design Manual and make
documents available for
developers and construction site
operators.
Notify the Water Quality Manager
of program modifications.
Stormwater
Program Manager
Plan Review
• N/A, see reporting metrics
documented in Table 4
Part II Section F.2 (b).
Strategies which include
SCMs appropriate for the
MS4
Maintain strategies that include a combination of structural and/or non-
structural SCMs implemented in concurrence with (a) above. Provide a
mechanism to require long-term operation and maintenance of structural
SCMs. Require annual inspection reports of permitted structural SCMs
performed by a qualified professional.
A qualified professional (as designated in the UDO) means an individual
trained and/or certified in the design, operation, inspection, and
maintenance aspects of the SCMs being inspected, for example, someone
trained and certified by NC State for SCM Inspection & Maintenance.
Within 12 months of the effective date of this permit, the permittee shall
evaluate, and revise as needed, SCM requirements, to be at least as stringent
as the minimum requirements in 15A NCAC 02H .1000.
Maintain UDO and Stormwater
Design Manual and make
documents available for developers
and construction site operators.
Develop an SCM Plan, documenting
the SCM inspection and
maintenance program, including
annual reporting, tracking and
enforcement.
Implement SCM inspection and
maintenance program.
Notify the Water Quality Manager
of program modifications.
Maintain UDO and Stormwater
Design Manual and make
documents available for
developers and construction site
operators.
Review the SCM Plan and update,
if necessary.
Implement SCM inspection and
maintenance program.
Notify the Water Quality Manager
of program modifications.
Stormwater
Program Manager
SCM Program
• Report number of sites with
SCMs
• Report number of sites where
SCM inspections have been
received
• Report SCM enforcement
activities
Part II Section F.2 (c). Deed
restriction and protective
covenants
The permittee shall provide mechanisms such as recorded deed restrictions,
plats, and/or protective covenants so that development activities maintain
the project consistent with approved plans.
Maintain recording mechanisms for
deed restrictions and protective
covenants.
Notify the Water Quality Manager
of program modifications.
Maintain recording mechanisms
for deed restrictions and
protective covenants.
Notify the Water Quality Manager
of program modifications.
Stormwater
Program Manager
Plan Review
• N/A, see reporting metrics
documented in Table 4
Part II Section F.2 (d).
Operation and maintenance
plan
The developer shall provide the permittee with an operation and
maintenance plan for the stormwater system, indicating the operation and
maintenance actions that shall be taken, specific quantitative criteria used for
determining when those actions shall be taken, and who is responsible for
those actions. The plan must clearly indicate the steps that shall be taken and
who shall be responsible for restoring a stormwater system to design
specifications if a failure occurs and must include a legally enforceable
acknowledgment by the responsible party. Development must be maintained
consistent with the requirements in the approved plans and any
modifications to those plans must be approved by the Permittee.
Require submittal of operation and
maintenance plan(s) prior to
certificate of occupancy and
maintain records of each plan.
Notify the Water Quality Manager
of program modifications.
Require submittal of operation
and maintenance plan(s) prior to
certificate of occupancy and
maintain records of each plan.
Notify the Water Quality Manager
of program modifications.
Stormwater
Program Manager
Plan Review
SCM Program
• Report number of sites with
newly approved operation
and maintenance plan(s).
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
33
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section F.2 (e).
Educational materials and
training for developers
Provide educational materials and training for developers. New materials may
be developed by the permittee, or the permittee may use materials adopted
from other programs and adapted to the permittee’ s new development and
redevelopment program.
Develop targeted training and
outreach materials for developers.
Conduct training for developers.
Notify the Water Quality Manager
of program modifications.
Review and update training and
outreach materials if necessary.
Conduct training for developers.
Notify the Water Quality Manager
of program modifications.
Stormwater
Program Manager
Communications
Public Education
and Engagement
SCM Program
• Report types fact
sheets/educational brochures
developed and/or maintained
• Report training events held
for developers and number of
participants
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
34
Section 9: Pollution Prevention and
Good Housekeeping for Municipal
Operations
As documented in Part II Section G of the MS4 permit, the objective of
this program is to reduce stormwater pollution from municipal
operations that drain to the MS4 and incorporate pollution prevention
and good housekeeping techniques into municipal operations.
This is achieved through the application of a variety of BMPs detailed in Table 10 and managed
in cooperation with multiple departments in the City, also referred to as owning departments,
which may include but is not limited to the following:
• Convention Center and Performing Arts
• Emergency Communications Center
• Engineering Services Department
• Fire Department
• Office of Emergency Management
• Parks, Recreation, and Cultural Resources Department
• Police Department
• Public Utilities Department
• Transportation Department
• Solid Waste Services
Inventory of municipal facilities and operations. The City has developed an inventory of
municipal facilities and defined criteria to identify facilities that have significant potential for
generating polluted stormwater runoff. The City will update the list as new facilities are
identified. Additionally, the City maintains a list of operations that may generate polluted
stormwater runoff. The City also maintains a list of municipally owned SCMs.
Inspection and maintenance program for municipal facilities and operations. The Stormwater
Management Division oversees a program for managing stormwater pollution from municipal
facilities and operations with significant potential for generating polluted stormwater runoff.
This may include, but is not limited to, municipal facilities with NPDES Industrial Stormwater
Permits, other facilities with significant potential for generating polluted stormwater runoff,
municipal operations outside of municipal facilities, and maintenance of municipally owned
streets, roads, and parking lots.
Site pollution prevention plans (SPPPs) for municipal facilities. City facilities with NPDES
Industrial Stormwater Permits maintain stormwater pollution prevention plans (SWPPPs), as
required by their respective permits. The City is coordinating with owning departments to
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
35
develop SPPPs for municipal facilities that have significant potential for generating polluted
stormwater runoff.
Spill response procedures for municipal facilities and operations. Spill response procedures
are included in SWPPPs, as required by the NPDES Industrial Stormwater Permits. Spill response
procedures will be included in SPPPs for municipal facilities and operations with significant
potential for generating polluted stormwater runoff. The City maintains a general SOP to
establish the responsibilities and steps to be followed by City of Raleigh staff in the handling of
emergencies involving hazardous materials and non-hazardous materials which threaten to
enter the stormwater conveyance system.
Prevent or minimize contamination of stormwater runoff from all areas used for vehicle and
equipment cleaning. Measures and actions to be taken for preventing and minimizing pollution
of stormwater runoff from areas used for vehicle and equipment cleaning are identified in the
SWPPP for each municipal operation. For municipal facilities without SWPPPs that conduct
vehicle washing, such as fire stations with three or fewer trucks, the Stormwater Management
Division is coordinating with facility staff to utilize measures to remove or reduce wash water
runoff from entering the storm sewer system.
Streets, roads, and public parking lots maintenance. The City may conduct street sweeping,
leaf and lawn litter pick up, or other measures to maintain municipally owned streets, roads,
and public parking lots.
Inspection and maintenance for municipally-owned or maintained SCMs and the storm sewer
system. The City conducts programs to inspect and maintain municipally owned SCMs and the
storm sewer system. This includes conducting third-party inspections, visual inspections, use of
pole cameras, and closed-caption television inspections to determine the system condition and
conducting maintenance, if necessary.
Staff training. Employee training for pollution prevention and good housekeeping is conducted
regularly. Training may be conducted virtually, in-person classroom setting, or by other means.
Permit No. NCS000245 Updated February 2021
36
Table 10. BMP Measurable Goals for Pollution Prevention and Good Housekeeping for Municipal Operations
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section G.2 (a). Inventory of
municipal facilities and operations
Maintain an inventory of municipal facilities and operations
owned and operated by the permittee that have been
determined by the permittee to have significant potential for
generating polluted stormwater runoff. Also maintain an
inventory of municipally owned structural SCMs.
Document the assessment of the
facility inventory and establish
processes for evaluation and update of
inventory for new or modified facilities.
Maintain and update inventory of
municipally owned SCMs.
Notify the Water Quality Manager of
program modifications.
Review and update
inventory based on changes
in municipal facilities and
operations.
Maintain and update
inventory of municipally
owned SCMs.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
SCM Program
• Report inventory of facilities
determined to have significant
potential for generating polluted
stormwater runoff
• Report number of municipal SCMs
by type
Part II Section G.2 (b). Inspection and
maintenance program for municipal
facilities and operations
Implement an inspection and maintenance program for
facilities and operations owned and operated by the
permittee for potential sources of polluted runoff, including
stormwater controls and conveyance systems. The inspection
program shall evaluate pollutant sources, document
deficiencies, plan corrective actions, implement appropriate
controls, and document the accomplishment of corrective
actions. The maintenance program shall include maintenance
activities and procedures aimed at preventing or reducing
pollutants generated from municipal facilities and operations.
Document the existing inspection and
maintenance program for municipal
facilities and operations that are
determined to be potential sources of
polluted runoff.
Inspect and document municipal facility
inspections, including any corrective
actions.
Notify the Water Quality Manager of
program modifications.
Review the inspection and
maintenance program
guidance.
Inspect and document
municipal facility
inspections, including any
corrective actions.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
Facility Owning
Departments
• Report number of facilities
inspected
• Report corrective actions taken at
municipal facilities or operations
Part II Section G.2 (c). SPPPs for
municipal facilities
Maintain and implement SPPPs for municipal facilities owned
and operated by the permittee that have been determined by
the permittee to have significant potential for generating
polluted stormwater runoff that has the goal of preventing or
reducing pollutant runoff.
Develop SPPPs for newly identified
facilities.
Maintain SWPPPs for all City-owned
facilities with individual NPDES
Industrial permits
Notify the Water Quality Manager of
program modifications.
Review facility
SPPPs/SWPPPs with owning
departments and update, if
necessary.
Develop SPPPs/SWPPPs for
newly identified facilities.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
Facility Owning
Departments
• Report number of facilities with
SPPPs/SWPPPs.
Permit No. NCS000245 Updated February 2021
37
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section G.2 (d). Spill response
procedures for municipal facilities
and operations
Maintain spill response procedures for municipal facilities and
operations owned and operated by the permittee that have
been determined by the permittee to have significant
potential for generating polluted stormwater runoff.
Develop department-specific for
identified municipal facilities and
operations.
Review and modify City-wide spill
response procedures as needed.
Notify the Water Quality Manager of
program modifications.
Review facility, operation,
and City-wide spill response
procedures and update, if
necessary.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
Facility Owning
Departments
• Report number of spill response
procedures developed/maintained
Part II Section G.2 (e). Prevent or
minimize contamination of
stormwater runoff from all areas
used for vehicle and equipment
cleaning
Describe measures that prevent or minimize contamination
of the stormwater runoff from all areas used for vehicle and
equipment cleaning, including fire stations that have more
than three fire trucks and ambulances. Perform all cleaning
operations indoors, cover the cleaning operations, ensure
wash water drains to the sanitary sewer system, collect wash
water and stormwater run-on from the cleaning area and
provide treatment or recycling, or other equivalent
measures. If sanitary sewer is not available to the facility and
cleaning operations take place outdoors, wash water shall
drain to an SCM for treatment, or else the cleaning
operations shall take place on or drain directly to grassed or
graveled areas to prevent point source discharges of the
wash water into the storm drains or surface waters.
Where cleaning operations cannot be performed as
described above and when operations are performed in the
vicinity of a storm drainage collection system, the drain is to
be covered with a portable drain cover during cleaning
activities. Any excess standing water shall be removed and
properly handled prior to removing the drain cover.
Facilities that have three or fewer fire trucks and ambulances
should attempt to comply with the above requirements;
however, those that cannot comply with these requirements
due to existing limitations shall incorporate structural
measures during facility renovation to the extent practicable.
Incorporate vehicle and equipment
washing activities into SPPP
development, where appropriate.
Notify the Water Quality Manager of
program modifications.
Review procedures for
vehicle and equipment
cleaning operations and
update, if necessary.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
Facility Owning
Departments
• Report number of facilities
performing vehicle and equipment
cleaning operations
• Report actions taken to prevent or
minimize stormwater runoff from
vehicle and equipment cleaning
Permit No. NCS000245 Updated February 2021
38
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section G.2 (f). Streets, roads,
and public parking lots maintenance
The permittee shall implement BMPs to reduce polluted
stormwater runoff from municipally owned streets, roads,
and public parking lots within the corporate limits.
Document streets, roads, and public
parking lot BMPs in the inspection and
maintenance program guidance.
Implement BMPs to reduce polluted
stormwater runoff from municipally
owned streets, roads, and public
parking lots.
Notify the Water Quality Manager of
program modifications.
Review inspection and
maintenance program
guidance and revise, if
necessary.
Implement BMPs to reduce
polluted stormwater runoff
from municipally owned
streets, roads, and public
parking lots.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Transportation Field
Services
• Report schedule of maintenance
activities
Part II Section G.2 (g). Inspection and
Maintenance (I&M) for municipally-
owned or maintained stormwater
control measures (SCMs) and the
storm sewer system.
The permittee shall maintain and implement an inspection
and maintenance program for SCMs owned and operated by
the municipality and the municipal storm sewer system
including catch basins, the conveyance system, and SCMs.
Develop an MS4 Plan, documenting the
conveyance system inspection and
maintenance program, including annual
reporting, and tracking of inspection
and maintenance performed.
Develop an SCM Plan, in conjunction
with Part II Section F.2 (b) in Table 9,
documenting the SCM inspection and
maintenance program, including annual
reporting, tracking and enforcement.
Implement inspection and maintenance
programs documented in the MS4 Plan
and the SCM Plan.
Notify the Water Quality Manager of
program modifications.
Review the MS4 Plan and
SCM Plan, and revise, if
necessary.
Implement inspection and
maintenance programs
documented in the MS4 Plan
and the SCM Plan.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Transportation Field
Services
SCM Program
Asset Management
Program
• Report number of municipal SCMs
inspected
• Report length or number of storm
sewer conveyance system
components inspected
• Report maintenance and repair
actions
Part II Section G.2 (h). Staff training
Maintain and implement a training plan that indicates when,
how often, and who is required to be trained and what they
are to be trained on.
Develop a Training plan, in conjunction
with Part II Section D.2 (d) in Table 7, to
document the existing employee
training program, including who should
receive training, types of training, and
frequency.
Conduct employee training and
document attendance.
Notify the Water Quality Manager of
program modifications.
Review the employee
Training Plan and update as
needed
Conduct employee training
and document attendance.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report types of training provided
and number of staff who
completed PPGH training
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
39
Section 10: Program to Monitor and
Control Pollutants in Storm Water
Discharges to Municipal Systems
As documented in Part II Section H of the MS4 permit, the objective of
this program is to evaluate pollutants in stormwater discharges to the
City’s MS4 from industrial facilities that have been determined to
contribute or have potential to contribute substantial pollutant loading
to the MS4, including the following types of facilities: hazardous waste
treatment, disposal, and recovery facilities; industrial facilities subject
to Section 313 of Title III of SARA; and facilities with NPDES Industrial
Stormwater Permits. This is achieved through a variety of BMPs
detailed in Table 11.
Maintain an inventory of industrial facilities. The City maintains an inventory of industrial
facilities and previous inspection records. At least once per permit cycle, the City reviews and
updates the list of facilities with data obtained from the DEQ NPDES Industrial Stormwater
Permit program, EPA’s RCRAInfo search tool
(https://enviro.epa.gov/facts/rcrainfo/search.html) to identify permitted hazardous waste
facilities, and EPA’s Toxic Release Inventory (https://www.epa.gov/toxics-release-inventory-tri-
program#trisearch) to identify facilities that are subject to Section 313 of SARA Title III.
Inspection program. The City has established inspection guidance and documentation
procedures for the program.
Evaluate industrial facilities discharging stormwater to the City’s MS4. Industrial sites within
the City’s corporate limits will be evaluated using the inspection program guidance. Those sites
demonstrating significant non-compliance will be reported to the permitting authority or
appropriate enforcement action taken for non-permitted sites where non-compliance is
determined. Where compliance with an existing NPDES Industrial Stormwater Permit does n ot
result in adequate control of pollutants to the MS4, City staff will recommend and document
the need for modifications or additions to the permit issuing authority.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
40
Table 11. BMP Measurable Goals for the Program to Monitor and Control Pollutants in Stormwater Discharges to Municipal Systems
Permit Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section H.2 (a).
Maintain an inventory of
industrial facilities
Maintain an inventory of permitted hazardous waste treatment, disposal,
and recovery facilities, industrial facilities that are subject to Section 313 of
Title III of the Superfund Amendments and Reauthorization Act of 1986
(SARA), and industrial facilities identified with an industrial activity
permitted to discharge stormwater to the permittee’s MS4.
For the purposes of this permit, industrial activities shall mean all
permitted industrial activities as defined in 40 CFR 122.26.
Update the industrial facility inventory to
incorporate the current permitted
hazardous waste facilities and facilities
that are subject to Section 313 of SARA
Title III (EPA 2020).
Maintain and update the
industrial facility inventory as
needed.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report number of
industrial facilities
identified within the City’s
corporate limit
Part II Section H.2 (b).
Inspection program
Identify priorities and inspection procedures. At a minimum, priority
facilities include those identified above in subsection II.H.2.a.
Review inspection procedures and update
inspection guidance and checklists, if
necessary.
Review inspections results and identify
program priorities.
Notify the Water Quality Manager of
program modifications.
Review inspection procedures
and update inspection
guidance and checklists, if
necessary.
Review inspections results and
revise program priorities, if
necessary.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report number of facility
inspections conducted
• Identify program priorities
Part II Section H.2 (c).
Evaluate industrial
facilities discharging
stormwater to the City’s
MS4
The Permittee is required to evaluate control measures implemented at
permitted hazardous waste treatment, disposal, and recovery facilities,
industrial facilities that are subject to Section 313 of Title III of the
Superfund Amendments and Reauthorization Act of 1986 (SARA), industrial
facilities identified with an industrial activity permitted to discharge
stormwater to the permittee’s MS4, or as identified as an illicit discharge
under the IDDE Program.
For permitted facilities, the municipality shall establish procedures for
reporting deficiencies and non-compliance to the permitting agency.
Where compliance with an existing industrial stormwater permit does not
result in adequate control of pollutants to the MS4, municipality will
recommend and document the need for permit modifications or additions
to the permit issuing authority.
For the purposes of this permit, industrial activities shall mean all
permitted industrial activities as defined in 40 CFR 122.26. For the purpose
of this permit, the Permittee is authorized to inspect the permitted
hazardous waste treatment, disposal, and recovery facilities as an
authorized representative of the Director.
Conduct inspection activities based on
established procedures documented in
City guidance and checklists.
Notify the Water Quality Manager of
program modifications.
Conduct inspection activities
based on established
procedures documented in
City guidance and checklists.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
IDDE, PPGH and
Industrial Inspection
Programs & NPDES
Permit Compliance
• Report number of
deficiencies identified, and
forwarded to enforcement
authority (NCDEQ)
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
41
Section 11: Water Quality Assessment
and Monitoring
As documented in Part II Section I of the MS4 permit, the objective of
this program is to evaluate the impacts of MS4 discharges on surface
water quality. This is achieved through the application of a variety of
BMPs detailed in Table 12.
Water quality assessment and monitoring plan. The City has developed a Water Quality
Assessment and Monitoring Plan that identifies monitoring locations, a monitoring schedule,
monitoring parameters, sample data analysis, and data evaluation and assessment. The Water
Quality Assessment and Monitoring Plan will be compliant with the monitoring and records
requirements documented in Part V Section C of the MS4 permit.
Water quality monitoring. City staff conducts water quality monitoring, as documented in the
Water Quality Assessment and Monitoring Plan. The current version of the plan has been
submitted to DEQ.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
42
Table 12. BMP Measurable Goals for Water Quality Assessment and Monitoring
Permit
Reference/BMP Measurable Goals
Program Actions
Responsible Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section I.2 (a).
Water Quality
Assessment and
Monitoring Plan
Maintain a Water Quality Assessment and
Monitoring Plan. The Plan shall include a schedule
for implementing the proposed assessment and
monitoring activities.
Complete update of the water quality
assessment and monitoring plan.
Review the water quality assessment and
monitoring plan and update as needed.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
Water Quality Monitoring,
Volunteer Programs, and
Project Development
• Report updates and revisions
to the monitoring plan
Part II Section I.2 (b).
Water quality
monitoring
Maintain and implement the Water Quality
Assessment and Monitoring Plan submitted to
DEMLR.
Conduct water quality monitoring and data
evaluation, as documented in the Water
Quality Assessment and Monitoring Plan.
Provide current Water Quality Assessment
and Monitoring Plan to DEQ.
Conduct water quality monitoring and data
evaluation, as documented in the Water
Quality Assessment and Monitoring Plan.
Provide current Water Quality Assessment
and Monitoring Plan to DEQ, if revised.
Notify the Water Quality Manager of
program modifications.
Stormwater Program
Manager
Water Quality Monitoring,
Volunteer Programs, and
Project Development
• Report number of stream sites
monitored
• Report number of samples
collected
• Report parameters analyzed
• Report trends in data from
stream sites monitored
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
43
Section 12: Total Maximum Daily Loads
As documented in Part II Section J of the MS4 permit, the City will
determine whether the MS4 discharges to receiving waters within a
TMDL and identify the pollutants of concern, utilize BMPs within the six
minimum control measures and the City’s TMDL Plan to meet the
assigned NPDES MS4 regulated stormwater WLA, and address the WLA
assigned to the City to the maximum extent practicable. The City is not
expected to attain the water quality standards for the subject receiving
waters.
The TMDLs identified within the City are documented in Section 2.5 and Table 2. The Falls Lake
TMDL is being addressed through the City’s participation in the Upper Neuse River Basin
Association. As documented in Section 8, the Neuse River Estuary is a Nutrient Sensitive Water,
so the City addresses this TMDL through the implementation of the Nutrient Sensitive Waters
Management Strategy. The Pigeon House Branch and Perry Creek TMDL are local TMDLs
without individual numeric WLAs assigned to the City.
Implementation of TMDLs, such as Pigeon House Branch and Perry Creek, are achieved through
the application of a variety of BMPs detailed in Table 13 for TMDLs with an individual numeric
WLA or the program elements in Table 14 for other TMDLs within the corporate limits.
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
44
Table 13. BMP Measurable Goals for TMDL Program
Permit
Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section J.3 (a).
Identify, describe and
map watershed,
outfalls, and streams
Within 12 months the permittee shall prepare a plan that:
• Identifies the watershed(s) subject to an
approved TMDL with an approved Waste Load
Allocation (WLAs) assigned to the permittee; and
• Includes a description of the watershed(s); and
• Includes a map of watershed(s) showing streams
& outfalls
• Identifies the locations of currently known major
outfalls within its corporate limits with the
potential of contributing to the cause(s) of the
impairment to the impaired segments, to their
tributaries, and to segments and tributaries
within the watershed contributing to the
impaired segments; and
• Includes a schedule (not to exceed 6 months) to
discover and locate other unknown major outfalls
within its corporate limits that may be
contributing to the cause of the impairment to
the impaired stream segments, to their
tributaries, and to segments and tributaries
within the watershed contributing to the
impaired segments.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, evaluate strategies and
tailor SWMP BMPs to address the pollutants of
concern and associated TMDLs and develop a
TMDL Plan.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, evaluate strategies and
tailor SWMP BMPs to address the pollutants of
concern and associated TMDLs and develop a
TMDL Plan.
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• Report TMDLs with
WLAs within the MS4
• Report changes in
outfall inventory that
may be contributing
to impairment of
identified streams
Part II Section J.3 (b).
Evaluate existing
measures
Within 12 months the permittee shall prepare a plan that:
• Shall describe existing measures currently being
implemented by the Permittee designed to
achieve the MS4’s NPDES WLA and to reduce the
TMDL pollutant of concern to the MEP within the
watershed to which the TMDL applies; and
• Provide an explanation as to how those measures
are designed to reduce the TMDL pollutant of
concern.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, establish measures for
identifying and reducing pollutants of concern to
the MEP.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, establish measures for
identifying and reducing pollutants of concern to
the MEP.
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A, Report
pollutants of concern
and measures taken
for reduction
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
45
Permit
Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section J.3 (c).
Assessment of available
monitoring data
Within 24 months the permittee shall prepare a plan that
shall include an assessment of available monitoring data.
Where long-term data is available, this assessment
should include an analysis of the data to show trends.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, review and assess
monitoring data.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, review and assess
monitoring data.
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A, Report
monitoring data
summary and data
trends
Part II Section J.3 (d).
Monitoring Plan
Within 24 months the permittee shall develop a
Monitoring Plan for the permittee’s assigned NPDES
regulated WLA as specified in the TMDL. The permittee
shall maintain and implement the Monitoring Plan as
additional outfalls are identified and as accumulating
data may suggest. Following any review and comment by
the Division the permittee shall incorporate any
necessary changes to monitoring plan and initiate the
plan within 6 months. Modifications to the monitoring
plan shall be approved by the Division.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, develop TMDL
monitoring plan for applicable assigned NPDES
regulated WLA.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, develop TMDL
monitoring plan for applicable assigned NPDES
regulated WLA.
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A, Report updates
to monitoring plan
Part II Section J.3 (e).
Additional Measures
Within 24 months the permittee shall prepare a plan to:
• Describe additional measures to be implemented
by the permittee designed to achieve the
permittee’s MS4’s NPDES WLA and to reduce the
TMDL pollutant of concern to the MEP within the
watershed to which the TMDL applies; and
• Provide an explanation as to how those measures
are designed to achieve the permittee’s MS4’s
NPDES regulated WLA to the MEP within the
watershed to which the TMDL applies.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, establish programs and
measures to be implemented within the City’s
MS4 permit program that are designed to achieve
the assigned MS4 NPDES regulated WLA and to
reduce the TMDL pollutant of concern to the MEP
within the watershed to which the TMDL applies.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, establish programs and
measures to be implemented within the City’s
MS4 permit program that are designed to achieve
the assigned MS4 NPDES regulated WLA and to
reduce the TMDL pollutant of concern to the MEP
within the watershed to which the TMDL applies.
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A, Report
additional measures
taken
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
46
Permit
Reference/BMP Measurable Goals
Program Actions Responsible
Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section J.3 (f).
Implementation Plan
Within 48 months the permittee shall prepare a plan that
describes the measures to be implemented within the
remainder of the permit term designed to achieve the
MS4’s NPDES WLA and to reduce the TMDL pollutant of
concern to the MEP; and
• Identify a schedule, subject to Division approval,
for completing the activities.
• Implement the permittee’s TMDL plan
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, establish a schedule to
address the NPDES WLA pollutant of concerns
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, establish a schedule to
address the NPDES WLA pollutant of concerns
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A, Report
achievement of
schedule milestones
Part II Section J.3 (g).
Incremental Success
The permittee’s plan must outline ways to track progress
and report successes designed to achieve the MS4’s
NPDES regulated WLA and to reduce the TMDL pollutant
of concern to MEP within the watershed to which the
TMDL applies.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, track successes per the
plan. Review and update as needed
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, track successes per the
plan. Review and update as needed
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A, Report
successes
Part II Section J.3 (h).
Reporting
The permittee shall conduct and submit to the Division an
annual assessment of the program designed to achieve
the MS4’s NPDES WLA and to reduce the TMDL pollutant
of concern to the MEP within the watershed to which the
TMDL applies. Any monitoring data and information
generated from the previous year are to be submitted
with each annual report.
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, prepare an assessment
of activities and data analysis for the TMDL
watershed plan
Continue to monitor TMDL development. If a
TMDL is developed that assigns an individual
numeric WLA to the City, prepare an assessment
of activities and data analysis for the TMDL
watershed plan
Stormwater
Program Manager
Water Quality
Program Manager
Water Quality
Monitoring,
Volunteer
Programs, and
Project
Development
• N/A Report annual
assessment outcomes
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
47
Table 14. Program Elements for TMDL Program
Program Element
Program Actions
Responsible Party(ies) Reporting Metric(s) FY2021 FY2022 – FY 2026
Part II Section J.4. If no MS4 NPDES regulated waste load allocation (WLA) is specified in
the TMDL
At any time during the effective dates of this permit, if a TMDL has been approved that
does not assign a WLA for the POC to the MS4, or if there was no WLA specified for the
POC in the TMDL assigned to the MS4, in lieu of developing a plan within this permit
section: within 24 months the Permittee shall evaluate strategies and tailor BMP’s
within the Permittee’s MS4 service area and in the context of the scope of the six
minimum permit measures to address the POC in the watershed(s) to which the TMDL
applies, to the MEP and to the extent allowable by law.
Develop TMDL Plan for Pigeon House
Branch and Perry Creek that includes
strategies and tailors BMPs to address the
POC in the watersheds.
Implement the TMDL Plan.
Notify the Water Quality Manager of
program modifications.
Review the TMDL Plan to
incorporate any new TMDLs or
program modifications, if
necessary.
Implement the TMDL Plan.
Notify the Water Quality
Manager of program
modifications.
Stormwater Program
Manager
Water Quality Program
Manager
Water Quality Monitoring,
Volunteer Programs, and
Project Development
• Report the development/maintenance
of the TMDL Plan and modifications, if
necessary
• Report BMPs implemented
City of Raleigh NC - Permit No. NCS000245 Updated February 2021
48
Section 13: Program Assessment,
Record Keeping, and Reporting
13.1 Program Assessment
As required in Part III of the MS4 permit, implementation of this SWMP will be documented.
Components of documentation will include inspections, maintenance activities, educational
programs, monitoring and sampling, implementation of BMPs, enforcement actions, and other
stormwater activities. Documentation will be kept on-file for at least five years and made
available to DEQ upon request. The SWMP will be reviewed on an annual basis and updated , if
necessary. Responsible departments for each permit element will report to the Water Quality
Manager during the annual review whether updates are required to program processes, goals,
or metrics. The Water Quality Manager will be responsible for incorporating these program
changes in to the SWMP. The City will submit an annual report of the SWMP evaluation and
monitoring information to DEQ, as described in Section 13 .3.
13.2 Record Keeping
As required in Part IV.A of the MS4 permit, the City will retain records of monitoring
information, including all calibration and maintenance records, and copies of reports required
by the permit for at least five years from the date of the sample, measurement, report, or
application.
13.3 Annual Reporting
As required in Part IV.B of the MS4 permit, the City will submit an annual report to DEQ that
tracks progress in implementing the SWMP. The annual report will include the following
sections:
• Description of the status of implementation of the SWMP, including the development
and implementation of each major component of the SWMP for the past year
• Schedule and plan of program implementation for the following year
• Description and justification of any proposed changes to the SWMP , including
descriptions and supporting information to show how these changes will impact the
SWMP
• Necessary changes to programs or practices for assessment of management measures
implemented through the SWMP
• Summary of data accumulated as part of the SWMP with an assessment of what the
data indicates
• Assessment of compliance with the permit, information on the establishment of
appropriate legal authorities, inspections, and enforcement actions
• Discussion of program funding