02 - NPDES Stormwater MS4 Annual Report, Rev 3.20.2022

NPDES Stormwater
MS4 Permit Annual
Report

October 1, 2020 – September 30, 2021

Permit No. NCS000245
To discharge stormwater under the National Pollutant Discharge Elimination System
Prepared by S. Wayne Miles, PE, Stormwater Program Manager

Rev. 3.20.2022 2
Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Table of Contents

Introduction ……………………………….…………………………………………………………………………..3
Section A: Program Implementation..........................................................................................5
A.1 Program Funding ....................................................................................................5
Section B: Public Education and Outreach ................................................................................7
B.1 Program Narrative...................................................................................................7
B.2 Best Management Practices ....................................................................................7
Section C: Public Involvement and Participation ....................................................................18
C.1 Program Narrative.................................................................................................18
C.2 Best Management Practices ..................................................................................18
Section D: Illicit Discharge Detection and Elimination ...........................................................20
D.1 Program Narrative ................................................................................................20
D.2 Best Management Practices ..................................................................................21
Section E: Construction Site Runoff Controls .........................................................................31
E.1 Program Narrative .................................................................................................31
E.2 Best Management Practices ..................................................................................32
Section F: Post-construction Site Runoff Controls ..................................................................34
F.1 Program Narrative .................................................................................................34
F.2 Best Management Practices ..................................................................................35
Section G: Pollution Prevention and Good Housekeeping for Municipal Operations .............37
G.1 Program Narrative ................................................................................................37
G.2 Best Management Practices ..................................................................................38
Section H: Program to Monitor and Evaluate Stormwater Discharges to Municipal Systems 46
H.1 Program Narrative ................................................................................................46
H.2 Best Management Practices .................................................................................46
Section I: Water Quality Assessment and Monitoring .............................................................47
I.1 Program Narrative ..................................................................................................47
I.2 Best Management Practices ...................................................................................48
Section J: Total Maximum Daily Loads ..................................................................................49
J.1 Program Narrative ..................................................................................................49
J.2 Best Management Practices ...................................................................................49
Section K: Annual Assessment and Annual Summary ............................................................51
K.1 Assessment ...........................................................................................................52
K.2 Program Improvements ........................................................................................52
K.3 Program Initiatives ...............................................................................................52

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Introduction
This report describes programs and activities undertaken during the period of October 1, 2020 through
September 30, 2021 as required by the City of Raleigh’s permit to discharge stormwater under the
National Pollutant Discharge Elimination System (NPDES), NPDES Stormwater MS4 Permit no.
NCS000245.

_______________________________

S. Wayne Miles, PE
Stormwater Program Manager
City of Raleigh

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Section A: Program Implementation
The City of Raleigh implements, manages, and oversees all aspects of its Stormwater Management Plan to control to the maximum extent
practical the discharge of pollutants from its municipal storm sewer system associated with stormwater runoff and illicit d ischarges, including
spills and illegal dumping.

A.1 Program Funding
The City’s Stormwater Management Division receives capital and operating funds appropriated by the City Council that are dedicated to
implementing and managing the provisions of the SW MP and complying with MS4 permit requirements. Program elements are primarily funded
by the City stormwater utility fee. Additional sources of funding include plan review and permit application fees, and the Ci ty 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.

The total budget for the City’s Stormwater Program for FY2022 is $32,775,052, which is funded by the City’s stormwater utility fee and includes
the Capital Improvement Program. The Capital Improvement Program total expenditures for the City’s Stormwater Program for FY2021 was
$15,644,757. The adopted Capital Improvement Program budget for the City’s Stormwater Program for FY2022 (fiscal year July 1, 2021
through June 30, 2022) is $10,493,000. Note that the FY2022 CIP budget is an increase over the FY2021 CIP budget; however, expenditures
for FY2021 included backlog funding from previous fiscal years to implement legacy projects. Total Full Time Employees (FTEs) for FY2022 is
132, with 71 with the Stormwater Management Division in the Engineering Services Department and 61 with Stormwater Maintenance in the
Raleigh Department of Transportation Field Services group.

Table A.1: FY2022 Stormwater Program Capital Improvement Program Budget

Stormwater Program Category FY2022 CIP Budget
Neighborhood Drainage System Improvements $2,250,000
General Drainage Infrastructure $2,073,000
Asset and Watershed $2,000,000
Water Quality/GSI Projects $1,250,000
Stream Restoration and Water Quality $1,220,000
Flood Hazard Mitigation and Flood Early Warning $1,100,000
City SCMs and Dams Program $600,000
Total $10,493,000

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Permit No. NCS000245

Program Element FY2021 FY2022 – FY 2026 Annual reporting
Metric(s) 2020-2021
Part II Section A The program
will be subject to a compliance
audit or a voluntary assessment
process on an annual basis
Complete voluntary
assessment process
Complete compliance
audit and/or voluntary
assessment process
Report type of
assessment completed
Voluntary self-audit process
completed December 2020; see
Section K
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.
Review regulations,
ordinances, policies,
and procedures and
update, if necessary.
Review regulations,
ordinances, policies,
and procedures and
update, if necessary.
Report modifications to
the regulations,
ordinances, policies,
and procedures
The City’s Education and
Outreach Plan and Water Quality
Assessment and Monitoring Plan
have been updated and changes
have been implemented during
this reporting year.
Part II Section A.2 The permittee
will implement provisions of the
SWMP and evaluate performance
and effectiveness of the program
components.
Evaluated program
effectiveness, as
described in Section
13 of the SWMP
Evaluate program
effectiveness, as
described in Section
13 of the SWMP
N/A, annual reporting
of program
effectiveness is
described in Section
13 of the SWMP
N/A
Part II Section A.3 The permittee
is required to keep the SWMP up
to date with annual updates if any
changes are warranted.
Update the SWMP to
incorporate current
permit requirements
and program
components.
Review the SWMP
and update, if
necessary.
Report modifications to
the SWMP and make
available to the
Division upon request
SWMP was updated during this
reporting period, submitted to
NDEQ on March 17, 2021 and
was deemed approved on June
15, 2021.
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
of the SWMP.
Maintain written
procedures as
documented in
Sections 4 through 12
of the SWMP.
Written procedures are
available to DEQ upon
request
N/A

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Section B: Public Education and Outreach

B.1 Program Narrative
The City provides an assortment of tools for reaching out to and educating the public including utility bill inserts, newsletters, webpages,
articles, social media, presentations at workshops, classroom education, and TV and radio campaigns. In addition to providing videos and
website and printed materials, CWEP produces a large multi-media campaign including television public service announcements, radio public
service announcements, and a stormwater informational website, www.nc -cleanwater.org. The CWEP annual report for this reporting period is
submitted directly to NC DEMLR by the Triangle J Council of Governments on behalf of the City.

B.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022 – FY 2026 Annual reporting Metric(s) 2020-2021
Part II Section B.2 (a)
Describe target pollutants
and sources
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.
Report target pollutants and
the associated sources
Report reason each target
pollutant was chosen
See Table B-1
Part II Section B.2 (b)
Describe target audiences
Develop Public
Education and
Engagement Plan,
Review and update
target audiences
associated with each
Report target audiences
likely to have significant
storm water impacts
See Table B-1

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Permit Reference/BMP FY2021 FY2022 – FY 2026 Annual reporting Metric(s) 2020-2021
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.

Notified the Water
Quality Manager of
program modifications.
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.
Report reason each target
audience was selected
See Table B-1
Part II Section B.2 (c)
Informational website
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.
Report number of hits to
stormwater website
44,500 page views for all
Stormwater Management
webpages; 374 page views
for the SWMP webpage.
(Data for 10/1/2020 –
8/31/2021 only; totals
unavailable for September
2021 at time of reporting
Part II Section B.2 (d)
Distribute public education
materials to identified user
groups
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.
Report number of
educational materials
distributed by type
See Table B-2

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Permit No. NCS000245

Permit Reference/BMP FY2021 FY2022 – FY 2026 Annual reporting Metric(s) 2020-2021
Part II Section B.2 (e)
Promote and maintain
hotline(s) or helpline(s)
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.
Report number of calls
handled by helpline by type
of call
Total calls: 1,214
Drainage: 357
Utility fee: 175
Plan review: 335
Volunteer: 37
Illicit discharge: 99
Active construction: 174
Capital projects: 12
Utility billing: 25
Total emails: 358
Part II Section B.2 (f)
Implement a public
education and outreach
program
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.
Report City events and
number of handouts
distributed at each event
See Table B-2
Report City’s in-school
events and number of
participants
See Table B-3

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Table B-1 Target pollutants, associated sources, target audiences and justification

Target
Pollutant
Target Pollutant
Justification
Pollutant Sources Target Audiences Target Audiences Justification
Sediment Increases MS4
maintenance, degrades
stream and lake biological
abundance and diversity,
reduces lake depth and
storage volume,
aesthetically unattractive
Illicit discharge,
construction sites,
streambank erosion
(resulting from
increasing impervious
in the watershed)
Construction contractors,
developers, municipal government,
property owners/residents, general
public
Audiences conduct, oversee,
regulate, and/or engage in and/or
observe activities at pollutant
sources
Nutrients
(nitrogen and
phosphorus)
Promotes growth of algae
in lakes and streams which
can degrade biological
abundance and diversity,
toxic to aquatic species and
humans, impede recreation,
aesthetically unattractive
Illicit discharge, sewage
overflows and leaks,
clippings and waste
from landscape
maintenance/lawn care,
pet animal waste,
application and
improper storage of
fertilizers, atmospheric
fallout
Landscape maintenance/lawn care
companies, property
owners/residents, municipal
government, general public
Audiences store and apply
fertilizer, own or maintain sewer
plumbing/pipes, engage in and/or
observe activities at pollutant
sources
Trash Increases MS4
maintenance, aesthetically
unattractive
Illicit discharge,
construction sites, litter,
dumping, restaurants,
food trucks
Construction contractors, property
owners/residents, restaurant and
food truck owners/operators,
general public
Audiences generate and store
trash or engage in and/or observe
activities at pollutant sources
Metals Degrades stream and lake
biological abundance and
diversity
Illicit discharge, vehicle
storage and
maintenance,
construction sites,
paints and finishes,
material, and chemical
storage
Construction contractors, painting
contractors, property owners/
residents, vehicle repair shops
Audiences engage in activities
that store/handle materials and
generate wastes that contain
metals and/or observe activities at
pollutant sources
Bacteria Public health, pet health Illicit discharge, sewage
overflows and leaks,
failing septic systems
Property owners/residents,
municipal government, general
public
Property owners/residents
responsible for septic systems
and private sewer plumbing and
connections, municipal
government responsible for most
sanitary sewers, general public

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Target
Pollutant
Target Pollutant
Justification
Pollutant Sources Target Audiences Target Audiences Justification
observes activities at pollutant
sources
Oil & grease Degrades stream and lake
biological abundance and
diversity
Illicit discharge, vehicle
storage and
maintenance,
restaurants, food trucks
Vehicle repair shops, restaurant
and food truck owners/operators,
municipal government, general
public
Audiences conduct, oversee,
and/or engage in and/or observe
activities at pollutant sources

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Table B-2 Education and Outreach event and material distribution log

Date Description of Activity Attendees & Materials Count Education Materials
(# each material same as # attendees)
10/01/20 Stormwater Management Advisory
Commission Virtual Meeting
44
10/10/20 Rain Garden/Rain Barrel Workshop 7 Raleigh Rainwater Rewards flyer, CWEP
brochure, volunteer programs flyer, general
pollution flyer
10/30/20 Longleaf Hotel Cistern Feature Article -
Raleigh Magazine Publication
30,000 Article
11/05/20 Stormwater Management Advisory
Commission Virtual Meeting
53
11/09/20 Storm Drain Marking
Springstone Subdivision
19 Storm drain markers Illegal discharge general
brochure
11/16/20 Proposed Floodplain Regulations Mailing
Directly Impacted Property Owners
312 Informational letter
11/16/20 Proposed Floodplain Regulations Mailing
Property Owners in Floodplain
4,016 Informational letter
11/17/20 NCYouth Conservation Corp-Mini Stream
Workshop/General Stormwater
Presentation
12
11/24/20 Exploris Middle School Virtual Q & A
Presentation-Green Stormwater
Infrastructure
8
12/01/21 Social Media Posts for Raleigh Stream
gauges and USGS partnership
35,000 impressions
12/01/20 Stormwater Fee Notification Mailing 9 Stormwater fee brochure
12/03/20 Stormwater Management Advisory
Commission Virtual Meeting
56
12/05/20 Virtual Stream Monitoring Workshop 17

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Date Description of Activity Attendees & Materials Count Education Materials
(# each material same as # attendees)
12/09/20 Illegal Discharge Detection Leaf Education
Email Notification
478 Leaf education information
12/17/20 Stormwater Capture it Art Contest Email
Campaign
120 Contest flyer promotion
12/22/20 Virtual Floodplain One on One Meeting
with Riverbend at Lakeside Homeowners
Association Contact
1
01/07/10 Stormwater Management Advisory
Commission Virtual Meeting
49
01/12/21 Upper Lake at Durant Park/Lake Study
Public Meeting #1
25
01/17/21 Stormwater Capture it Art Contest Social
Media and Email Campaign
Not known
01/23/21 Virtual Floodplain Meeting with City of
Raleigh Hispanic & Immigration Board
11
01/26/21 Upper Lake at Durant Park/Lake Study
Public Meeting #2
20
02/01/21 Stormwater Fee Notification Mailing 21 Stormwater fee brochure
02/04/21 Stormwater Management Advisory
Commission Virtual Meeting
39
02/05/21 Water Pollution Wednesday Social Media
Campaign
13,800 impressions
02/08/21 Winter e-Builder Training Sessions 45
02/09/21 Winter e-Builder Training Sessions 45
02/10/21 Winter e-Builder Training Sessions 45
02/11/21 Winter e-Builder Training Sessions 45

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Date Description of Activity Attendees & Materials Count Education Materials
(# each material same as # attendees)
02/12/21 Winter e-Builder Training Sessions 45
02/18/21 Stormwater Art Contest Facebook Ad
Promotion
807 views Contest promotional ad
02/26/21 Winter Urban Watershed Newsletter 905 Newsletter
03/01/21 Stormwater maintenance behind the
scenes
12,700 impressions Social media
12/20 –
3/21
Stormwater Capture it Art Contest Social
Media and Email Campaign
1,748 Social media contest promotion
03/01/21 Stormwater Fee Notification Mailing 7 Stormwater fee brochure
03/04/21 Stormwater Management Advisory
Commission Virtual Meeting
40
04/30/21 Earth Day/Arbor Day Tree Planting Social
Media posts and Videos
41
07/24/21 StoryWalk at Lake Johnson Park
All the Way to the Ocean
Not known
03/11/21 Virtual Stormwater Volunteer Recognition
Hidden Rivers Documentary Screening
13
03/12/21 Sustainable Wildlife & Urban Tree
Committee (SWUT) Virtual Meeting
5
03/13/21 Raleigh Watershed Learning Network-
storm drain marking demo
30
03/20/21 Creek Week/Multi-site Stream Clean Ups
Drop-in and Adopt a Stream Groups
133
03/20/21 Social Media Posts& Direct Email
Creek Week- Stream Cleanups two
locations
1,657
03/26/21 Raleigh Rainwater Rewards Social Media
Promotions
1,454

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Date Description of Activity Attendees & Materials Count Education Materials
(# each material same as # attendees)
03/27/21 Rain Garden/Barrel Workshop-In-Person 11
03/28/21 Raleigh Watershed Learning Network
presentation- GSI/Innovation & Funding
15
04/01/21 Stormwater Fee Notification Mailing 13 Stormwater Fee Brochure
04/01/21 Stormwater Management Advisory
Commission Virtual Meeting
40
04/08/21 Mailing for Proposed Floodplain
Regulations - Public Hearing
3,960 Proposed floodplain regulations letter
04/20/21 Virtual Storytime Reading & Presentation-
Al Iman School
28
04/21/21 Virtual Twitter Announcement of the 2021
Capture it! Art Contest winning entries
Not known
04/22/21 Urban Watersheds Spring Newsletter 846 Quarterly newsletter
04/24/21 Virtual Stream Monitoring Workshop 9
04/28/21 Garden Club field tour of Raleigh Union
Station green roof
10
05/01/21 Stormwater Fee Notification Mailing 4 Stormwater fee brochure
05/03/21 Post Card Mailing-Western North Ridge
Project Virtual Public Meeting
46 Project update postcard
05/05/21 Stream Cleanup, Cary Academy High
School
7
05/06/21 Stormwater Management Advisory
Commission Virtual Meeting
40
05/12/21 Virtual & In-person Presentation 2021
Carolina Climate Resilience Conference on
"Nature-based Stormwater Solutions"
40
05/22/21 Think Clean Raleigh - Trash Pick-up 18
05/25/21 Virtual Public meeting- Western North
Ridge Stormwater Project
14

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Date Description of Activity Attendees & Materials Count Education Materials
(# each material same as # attendees)
06/03/21 Stormwater Management Advisory
Commission Virtual Meeting
39
05/14/21 Water Partnership Education and
Outreach-Virtual Presentation
20
05/26/21 Go Ask Mom - Local News On-line Story
Walk at Lake Johnson
11,000
05/26/21 Hurricane Season Staff Interview
with Spectrum News
Not known
05/30/21 Stormwater Fee Notification Mailing 4 Stormwater fee brochure
05/31/21 National Dam Safety Awareness Day-
Website Article/Social Media Video
556
06/21/21 Environmental Justice Summer Camp
EnviroScape, Green Stormwater
Infrastructure Presentations
9 CWEP brochure
06/21/21 Your Service Connection /Monthly
newsletter Mailing - Pool Water Pollution
Article
204,051 Public Utilities customer monthly newsletter
06/24/21 NC Youth Conservation Corps -Water
Quality Presentation with Stream Flow
Activity
8
07/01/21 Stormwater Management Advisory
Commission Virtual Meeting
37
07/01/21 Stormwater Fee Notification Mailing 8 Stormwater fee brochure
07/06/21 South Raleigh Drainage Studies Public
Input Session Postcard Mailing
1,446 Drainage studies information postcard
07/07/21 Girls in Science - mini stormwater stream
monitoring presentation and monitoring
activities
10
07/07/21 Floodplain Safety & Benefits of a Healthy
Floodplain Videos - Social Media Posts
and Story
800 impressions

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Date Description of Activity Attendees & Materials Count Education Materials
(# each material same as # attendees)
07/22/21 NC Conservation Corps Mini Stream
Monitoring presentation & monitoring
activities
14
07/01/21 Illegal Discharge Detection Elimination Car
Wash Businesses Mailing
208,000 At Your Service utility bill insert
08/05/21 Green Stormwater Infrastructure Virtual
Subcommittee Meeting
10
08/12/21 Rain Garden & Rain Barrel mini-
presentation Garden Club
11 Raleigh Rainwater Rewards flyer, CWEP
brochure, volunteer programs flyer, general
pollution flyer
08/18/21 North Carolina State University Volunteer
Fair
50 Stormwater volunteer brochure
08/20/21 Statewide Stakeholders Meeting-
Advancing Nature-based Stormwater
Strategies to Reduce Flooding and
Improve Water Quality in North Carolina
55
08/31/21 Stormwater Fee Notification Mailing 10 Stormwater fee brochure
09/02/21 Stormwater Management Advisory
Commission Virtual Meeting
41
9/6/2021 Mass Mailing New Stormwater Fee/Tier
Notification Letter
1,073
09/08/21 Exploris Middle School EnviroScape
Presentations
70
09/23/21 2021 Annual e-Builder Elevate Conference Not known
9/29/2021 SNAP tool Presentation/Training for Staff 16
9/30/2021 Presentation on incorporating Urban
Agriculture & Stormwater
14
9/30/2021 Stormwater (Billing Notification Letter) Fee
Brochures
11
9/30/2021 Raleigh Rainwater Rewards Consults
(10/1/2020 – 9/30/2021)
202

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Table B-3 Education and Outreach school events

Date # Students
Attended
Event Location/Description Virtual/In-person
11/24/20 6 Exploris Middle
School/interview with students
on green infrastructure and
stormwater
Virtual
03/05/21 300 Wakefield Middle
School/EnviroScape demo
Virtual
04/20/21 28 Al Iman School/StoryTime
reading
Virtual
09/08/21 70 Exploris Middle School/
EnviroScape demo
In-person
Section C: Public Involvement and Participation

C.1 Program Narrative
The City provides opportunities for public involvement and participation. The City’s Stormwater Management Plan is noticed an d presented at a
public hearing for comment by the public once per permit cycle. As-needed changes to City stormwater regulations also are noticed and
presented at public hearings for comment by the public. The annual budget for the Stormwater Management Division is noticed and presented
for public comment prior to adoption. As a means of obtainin g more regular public input on policy and project related matters, Raleigh City
Council established the Stormwater Management Advisory Commission that reviews stormwater management issues and provides guid ance
and recommendations to City Council. Comments from the public also are received during meetings of this commission.

C.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022 – FY 2026 Reporting Metric(s) 2020-2021
Part II Section C.2 (a)
Volunteer community
involvement program
Maintain the community
volunteer opportunities

Maintain the volunteer
community opportunities

Report number of
participants in each City
volunteer opportunity
Adopt a Stream: 393
Storm drain marking: 10
Stream monitoring: 17
Foster a Stream: 195

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Permit Reference/BMP FY2021 FY2022 – FY 2026 Reporting Metric(s) 2020-2021
Notify the Water Quality
Manager of program
modifications.
Notify the Water Quality
Manager of program
modifications.
Part II Section C.2 (b)
Establish a mechanism
for public involvement
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.
Report meeting dates for
meetings of the
Stormwater
Management Advisory
Commission and topics
of discussion pertaining
to MS4 compliance
October 1, 2020
November 5, 2020
December 3, 2020 (MS4 and Linear
Asset Management Study)
January 7, 2021
February 4, 2021
March 4, 2021 (Stormwater Program
Budget Update and Level of Service
Options)
April 1, 2021 (Capture It! Stormwater
Arts Contest Finalists and Voting)
May 6, 2021 (Update on Watershed
Master Planning and Community
Engagement)
June 3, 2021
July 1, 2021
September 2, 2021
Part II Section C.2 (c)
Establish hotline(s) or
helpline(s)
Maintain the stormwater
administration helpline
to receive public
complaints.

Notify the Water Quality
Manager of program
modifications.
Maintained the
stormwater
administration helpline
to receive public
complaints.

Notified the Water
Quality Manager of
program modifications.
N/A, see helpline
reporting metrics in Part
II Section B.2.
N/A
Part II Section C.2 (d)
Public review and
comment
Create a webpage for
the SWMP on the public
website.

Publicize a comment
period for updates to the
SWMP.

Maintain the webpage
for the most recent
edition of the SWMP.

Publicize a comment
period for updates to the
SWMP.

Report webpage link for
SWMP
https://raleighnc.gov/SupportPages/s
tormwater-management-plan
Report mechanisms
used for public review
and comment on the
SWMP
The City uses the SWMP website
with the Water Quality Manager’s
contact information and the City’s
Stormwater hotline phone number
and email address to provide citizens
a mechanism to comment on the
SWMP between updates.

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Permit Reference/BMP FY2021 FY2022 – FY 2026 Reporting Metric(s) 2020-2021
Notify the Water Quality
Manager of program
modifications.
Notify the Water Quality
Manager of program
modifications.
Part II Section C.2 (e)
Public notice
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.
If public notice occurred,
report mechanism(s)
used to advertise public
review and comment
and public notice period.
Advertising for public notice of the
updated SWMP for public review and
comment was completed between
January 8 – February 5,
2021.Announcement of the start and
end of the SWMP public comment
period occurred at the January 7,
2021 and February 4, 2021
Stormwater Management Advisory
Commission meetings.
Mechanisms used to advertise this
public review and comment period:
Website: 169 pages views
Email:
January 12, 2021 to 3,072
subscribers
February 4, 2021 to 3,029
subscribers
Social media:
Twitter, two posts, 5,736 impressions
Facebook, two posts, 257 people
reached

Section D: Illicit Discharge Detection and Elimination

D.1 Program Narrative
The City’s illicit discharge program began in 1995. This program is based on a City ordinance that defines what constitutes an illicit discharge
and an illicit connection and provides enforcement protocols.

Illicit discharges and illicit connections are identified through reports from the public, reports from City staff across all departments, dry weather
screening observations, and outfall inspections. A team of three staff is assigned to Illicit Discharge Detection and Elimination (IDDE). IDDE

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

preventive measures include educating City staff and the public through various means and direct mailings to businesses, such as landscapers
and restaurants, that have a history of illicit discharges. Outreach efforts also include regular updates to website content, social media, utility
billing and newsletter inserts, and coordination with Wake County and professional associations to distribute illicit discharge prevention
information to wide audiences.

D.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022 – FY 2026 Annual Reporting 2020-2021
Part II Section D.2 (a)
Maintain appropriate
legal authorities
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.
N/A, see Part II Section A.1 for
reporting of legal authorities
N/A
Part II Section D.2 (b)
Maintain a storm sewer
system base map of
major MS4 outfalls
Evaluate outfall and receiving
stream definitions with current
program recommendations
and revise, if necessary.

Notify the Water Quality
Manager of program
modifications.
Evaluate outfall and
receiving stream definitions
with current program
recommendations and
revise, if necessary.

Notify the Water Quality
Manager of program
modifications.
Report number of major
outfalls

179
Provide overview map of
receiving streams and major
outfalls
See Map D-1 below
Part II Section D.2 (c)
Inspection/detection
program to detect dry
weather flows at MS4
outfalls
Develop IDDE Plan from
existing field forms and
SOPs.

Notify the Water Quality
Manager of program
modifications.
Develop IDDE Plan from
existing field forms and
SOPs.

Notify the Water Quality
Manager of program
modifications.
Report number of dry weather
inspections completed and
results
200 dry weather
flow outfall
inspections were
completed during
which no illicit
discharges or illicit
connections were
detected

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Permit No. NCS000245

Permit Reference/BMP FY2021 FY2022 – FY 2026 Annual Reporting 2020-2021
Part II Section D.2 (d)
Employee training
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..
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.
Report number of staff who
completed IDDE training and
types of training provided
387 City staff
completed the IDDE
training module
through the City’s
iLearn platform
Part II Section D.2 (e)
Maintain a public
reporting mechanism(s)
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.
Report number of calls and
emails received
City staff responded
to 126 calls of
potential illicit
discharges; 99 calls
were received
through the City’s
Stormwater hotline
Part II Section D.2 (f)
Documentation
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.
Report dates of investigations,
any enforcement action(s) or
remediation that occurred
See Table D-1
below

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Map D-1 Receiving waters and Major Outfalls

Rev. 3.20.2022 24
Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Table D-1 IDDE investigations and actions taken October 1, 2020 – September 30, 2021

Address Date
Received
Date
Responded Description Action Taken
925 Runnymede
Road
10/8/2020 10/8/2020 Complaint of sediment in tributary Investigated and found not to be a water quality
concern; no further action taken
1320 Onslow
Road
10/10/2020 10/11/2020 Complaint of blackish sheen in tributary
after rain event
Investigated and found not to be a water quality
concern; no further action taken
907 Marlowe
Road
10/13/2020 10/13/2020 Complaint about flush truck dumping
turbid water near Crabtree Creek
Investigated and found not to be a water quality
concern; no further action taken
930 Wimbleton
Drive
10/13/2020 10/13/2020 Complaint of fish kill Forwarded to NCDWR
2004 Hornbeck
Court
10/15/2020 10/15/2020 Complaint about leaves being blown into
catch basin
Investigated and found not to be a water quality
concern; no further action taken
2550 Sullivan
Drive
10/15/2020 10/15/2020 Possible cross connection Investigated and found not to be a water quality
concern; no further action taken
1400 Beverly
Drive
10/22/2020 10/22/2020 Complaint of SS smell behind property Investigated and found not to be a water quality
concern; no further action taken
1700 Nottingham
Road
10/26/2020 10/27/2020 Complaint about fuel smell in park Investigated and found not to be a water quality
concern; no further action taken
3708 Swift Drive 10/28/2020 10/28/2020 Complaint of debris being blown into
catch basin
Investigated and found not to be a water quality
concern; no further action taken
5607 Capital
Boulevard
10/1/2020 10/1/2020 Duke Energy transformer leaking mineral
oil into catch basin
NOV issued
7440 Six Forks
Road
10/10/2020 10/12/2020 Complaint of grease recycle barrel
leaking into parking lot
NOV issued
9301 Globe
Center Drive
10/15/2020 10/15/2020 Driver spilled solvent into storm system NOV issued
1041 Wimbleton
Drive
10/23/2020 10/23/2020 Complaint of tributary turning white NOV issued
1317 Wagram
Court
10/6/2020 10/6/2020 SSO PUD reported spill to NCDWR
7404 Boros Place 10/29/2020 10/29/2020 SSO PUD reported spill to NCDWR
3037 Allenby
Drive
10/31/2020 11/2/2020 Possible septic tank failure Forwarded to Wake County

Rev. 3.20.2022 25
Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
510 W Martin
Street
11/16/2020 11/16/2020 City staff noticed fuel in CB, fuel
discharge from rain event
Investigated and found not to be a water quality
concern; no further action taken
3808 Edwards
Mill Road
11/30/2020 11/30/2020 Parks staff noticed two containers full of
used oil in COR park parking lot
Investigated and found not to be a water quality
concern; no further action taken
6713 Magnolia
Court
11/9/2020 11/9/2020 Private SS service discharging in parking
lot
NOV issued
4408 Jacqueline
Lane
12/9/2020 12/10/2020 Private SS service discharging into street NOV issued
4620 Kilcullen
Drive
11/16/2020 11/16/2020 Private SS service discharging into CB
behind property
NOV issued
6012 Viking Drive 11/2/2020 11/2/2020 SSO PUD reported spill to NCDWR
3316 Alleghany
Drive
11/12/2020 11/12/2020 SSO PUD reported spill to NCDWR
3900 Quail
Hollow Drive
11/12/2020 11/12/2020 SSO PUD reported spill to NCDWR
1500 Banbury
Road
11/12/2020 11/12/2020 SSO PUD reported spill to NCDWR
5839 Capital
Boulevard
11/15/2020 11/15/2020 SSO PUD reported spill to NCDWR
1117 Beacon
Lake Drive
11/28/2020 11/28/2020 SSO PUD reported spill to NCDWR
13401 Falls of
Neuse Road
12/18/2020 12/18/2020 Fuel spill (Less than 5 gallons) Warning letter issued
3314 Turnbridge
Drive
12/7/2020 12/7/2020 Paint spill NOV issued
8200 McGuire
Drive
12/15/2020 12/15/2020 Private SS service discharging on
ground
NOV issued
9299 Glenwood
Avenue
12/9/2020 12/9/2020 SSO PUD reported spill to NCDWR
3120 Walnut
Creek Parkway
12/23/2020 12/23/2020 SSO PUD reported spill to NCDWR
740 Powell Drive 12/22/2020 12/23/2020 SS smell near pond on park property Investigated and found not to be a water quality
concern; no further action taken
124 W Dawson
Street
1/19/2021 1/19/2021 SWS truck had hydraulic spill in street Investigated and found not to be a water quality
concern; no further action taken

Rev. 3.20.2022 26
Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
Reedy Creek
Greenway
1/29/2021 1/29/2021 Complaint of fuel smell in greenway Investigated and found not to be a water quality
concern; no further action taken
110 Parks at
North Hills Street
1/15/2021 1/15/2021 PUD staff noticed staining behind
restaurant
Warning issued
4325 Glenwood
Avenue
1/15/2021 1/15/2021 Grease spill NOV issued
2330 Churchill
Road
1/20/2021 1/21/2021 Paint spill NOV issued
2940 Golden
Oaks Court
1/19/2021 1/19/2021 Private SS discharge NOV issued
5501 Capital
Boulevard
2/1/2021 2/1/2021 Staff noticed grease spilled in storm inlet NOV issued
3801 Rolling
Green Court
2/5/2021 2/5/2021 SS discharging behind property NOV issued
2901 Boardlands
Drive
2/8/2021 2/9/2021 Private SS service discharging in street NOV issued
2501 W Raleigh
Boulevard
2/22/2021 2/22/2021 Oil spill Summary Memorandum issued
5107 Creedmoor
Road
2/23/2021 2/23/2021 Grease spill into catch basin behind
building
NOV issued
4200 Quail
Hollow Drive
2/25/2021 2/25/2021 Complaint of blueish hue in tributary near
park property
Summary Memorandum Issued
3208
Birnamwood
Road
2/16/2021 2/16/2021 Concrete wash runoff threatening small
tributary near property
Warning letter issued
903 Wakestone
Court
2/1/2021 2/2/2021 Complaint of greenish color in tributary Investigated and found not to be a water quality
concern; no further action taken
619 Kirby Street 2/3/2021 2/4/2021 Complaint of gas spill in street Investigated and found not to be a water quality
concern; no further action taken
8701 Wadford
Drive
2/8/2021 2/8/2021 Complaint of sewer smell behind building Investigated and found not to be a water quality
concern; no further action taken
2601 Oxford
Road
2/15/2021 2/16/2021 Complaint of suds in tributary Investigated and found not to be a water quality
concern; no further action taken
1323 Williamson
Drive
2/20/2021 2/22/2021 Complaint of blueish hue in tributary Investigated and found not to be a water quality
concern; no further action taken
600 Rawls Drive 2/2/2021 2/2/2021 SSO PUD reported spill to NCDWR

Rev. 3.20.2022 27
Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
1116 Savannah
Drive
3/22/2021 3/23/2021 Complaint of grease being dumped into
storm inlet
Warning letter issued
904 Ravenwood
Drive
3/22/2021 3/23/2021 Complaint of paint in tributary Investigated and found not to be a water quality
concern; no further action taken
6616 Fleetwood
Drive
3/1/2021 3/1/2021 Complaint of sediment being discharged
into storm inlet from stone cutting
NOV issued
4012 Scofield
Drive
3/3/2021 3/3/2021 Private SS service discharging into street NOV issued
25 Sunnybrook
Road
3/6/2021 3/6/2021 PUD informed staff of private SS service
discharging into storm inlet
NOV issued
211 Six Forks
Road
3/8/2021 3/8/2021 Private SS service discharging into street NOV issued
521 Brent Road 3/19/2021 3/19/2021 Private SS service discharging into street NOV issued
1605 Park Drive 3/14/2021 3/15/2021 Cross connection between sewer line
and storm line
Investigated and found not to be a water quality
concern; no further action taken
3600 Capital
Boulevard
3/12/2021 3/15/2021 Complaint of wash runoff from car wash
going into the storm inlet
NOV issued
3314 Turnbridge
Drive
3/16/2021 3/16/2021 Complaint of paint spilling out of
dumpster at property
NOV issued
601 W Peace
Street
3/23/2021 3/23/2021 Wash runoff from cleaning kitchen mats
entering storm inlet
NOV issued
6413 Lakeway
Drive
4/5/2021 4/5/2021 Private SS service discharging onto
sidewalk
Warning letter issued
3125 Julian Drive 4/12/2021 4/13/2021 Complaint of brownish water behind
property
Investigated and found not to be a water quality
concern; no further action taken
3711 Jamestown
Circle
4/20/2021 4/20/2021 COR staff noticed private sewer service
discharging at apartment complex
Investigated and found not to be a water quality
concern; no further action taken
4800 Walenda
Drive
4/20/2021 4/20/2021 Complaint of trash and debris in and
around lake on property
Investigated and found not to be a water quality
concern; no further action taken
5217 Poole Road 4/20/2021 4/20/2021 COR staff noticed possible sewer smell
in storm inlet
Forwarded to Wake County
7703 Marsh Oak
Drive
4/18/2021 4/18/2021 SSO PUD reported spill to NCDWR
400 Woods of
North Bend Drive
4/13/2021 4/13/2021 SSO PUD reported spill to NCDWR

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
2712 Discovery
Drive
4/1/2021 4/1/2021 SSO PUD reported spill to NCDWR
510 Cleveland
Street
5/5/2021 5/5/2021 Complaint of possible hydraulic fluid spill
in street
Investigated and found not to be a water quality
concern; no further action taken
1101 Milburnie
Road
5/3/2021 5/3/2021 Sodium hydroxide leaked out of
container onto City park property
Warning letter issued
6708 Spencer
Court
5/6/2021 5/6/2021 Private sewer service discharging into
tributary
NOV issued
9531 Waterwood
Court
5/20/2021 5/20/2021 Private sewer service discharging into
ditch
NOV issued
707 S State
Street
5/17/2021 5/17/2021 SSO PUD reported spill to NCDWR
5536 Neuse View
Drive
5/19/2021 5/19/2021 SSO PUD reported spill to NCDWR
3800
Hillsborough
Street
5/24/2021 5/24/2021 SSO PUD reported spill to NCDWR
5000 Windy Hill
Drive
5/24/2021 5/24/2021 SSO PUD reported spill to NCDWR
11310 Involute
Place
6/22/2021 6/22/2021 Complaint of paint spill near storm inlet Investigated and found not to be a water quality
concern; no further action taken
4023 Gregory
Lane
6/16/2021 6/16/2021 Complaint of sewer discharge on
property
Investigated and found not to be a water quality
concern; no further action taken
2108 E Millbrook
Road
6/7/2021 6/7/2021 Complaint of wash runoff from car wash Investigated and found not to be a water quality
concern; no further action taken
Glenwood Ave @
Harvey Street
6/3/2021 6/3/2021 Fuel spill from vehicle accident during
rain event
Investigated and found not to be a water quality
concern; no further action taken
2708 South
Saunders Street
6/23/2021 6/28/2021 Complaint of runoff from car wash
entering storm inlet
Warning letter issued
4325 Glenwood
Avenue
6/7/2021 6/8/2021 Grease trap overflowing into storm inlet NOV issued
8816 Gulf Court 6/14/2021 6/14/2021 Complaint of beer waste leaking into
storm inlet
NOV issued
5301 Old Poole
Road
6/22/2021 6/23/2021 Complaint of stone cutting dust carried
by runoff into storm inlet
NOV issued
6601 Times Drive 6/29/2021 6/29/2021 SSO PUD reported spill to NCDWR

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
10210
Sablewood Drive
7/5/2021 7/6/2021 White substance in parking lot Warning letter issued
10536 Swerling
Way
7/19/2021 7/19/2021 Trash in storm drain Referred to TFS
521 Brent Road 7/19/2021 7/19/2021 Overflowing cleanouts maintained by
Public Utilities
Forwarded to PUD
5041 Six Forks
Road
7/29/2021 7/29/2021 Broken glass in storm drain Referred to TFS
9211 Calabria
Drive, #110
7/29/2021 7/29/2021 Trash in storm drain Refereed to TFS
2001 Poole Road 7/14/2021 7/15/2021 Evidence of past wastewater and
washing near storm drain
Warning letter issued
2540
Westinghouse
Boulevard
7/7/2021 7/7/2021 Fuel spill into catch basins and
constructed wetland
Summary Memorandum Issued
3316 Alleghany
Drive
7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR
2739 Rothgeb
Drive
7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR
2220 Grantland
Avenue
7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR
5532 Neuse View
Drive
7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR
556 Dacian Road 7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR
1020 Sage
Green Court
8/9/2021 8/9/2021 Grass clippings in catch basin Referred to TFS
Lewis Farm Road
& Banbury Road
8/9/2021 8/9/2021 Natural channel erosion Investigated and found not to be a water quality
concern; no further action taken
Martin Street &
Salisbury Street
8/17/2021 8/17/2021 Gel tablets and marbles in catch basin Investigated and found not to be a water quality
concern; no further action taken
3500 Rock Creek
Drive
8/30/2021 8/30/2021 SS tap not connected to main SS line Forwarded to PUD
1301 Mordecai
Drive
8/10/2021 8/10/2021 Styrofoam waste from construction in
curb line
Warning letter issued
3700 New Bern
Avenue
8/17/2021 8/17/2021 Possible fuel spill Warning letter issued

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Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
300 Acorn Street 8/30/2021 8/30/2021 Hydraulic spill residue in curb line Warning letter issued
10532 Swerling
Way
8/30/2021 8/30/2021 Trash in catch basin Warning letter issued
5101 Glenwood
Avenue
8/4/2021 8/4/2021 SSO PUD reported spill to NCDWR
720 Pershing
Road
8/10/2021 8/10/2021 Concrete slurry entering adjacent
property and stormwater pipe
NOV issued
5621 Louisburg
Road
8/12/2021 8/12/2021 Grease and SS overflow into parking lot NOV issued
2518 Clark
Avenue
8/16/2021 8/17/2021 Paint residue in curb line NOV issued
8471 Garvey
Drive
8/20/2021 8/20/2021 Grease trap overflow into ditch NOV issued
14307 Foxcroft
Road
8/24/2021 8/24/2021 Private SS tap overflow into curb line NOV issued
7900 Audubon
Drive
8/25/2021 8/25/2021 Hydraulic fluid spill on neighborhood
streets
Summary Memorandum issued
105 Idlewild
Avenue
8/30/2021 8/30/2021 Septic tank overflowing into yard NOV issued
1510 Graduate
Lane
9/16/2021 9/16/2021 SSO PUD reported spill to NCDWR
741 Bishops Park
Drive
9/7/2021 9/8/2021 Report of pressure washer water and
paint being discharged into storm drain
Warning letter issued
917 Willow Run
South Drive
9/23/2021 9/23/2021 SSO PUD reported spill to NCDWR
2113 Ridge Road 9/27/2021 9/27/2021 Possible de-watering of chlorinated pool
water
Investigated and found not to be a water quality
concern; no further action taken
6615 Falls of
Neuse Road
9/14/2021 9/14/2021 Overflowing grease trap into parking lot Warning letter issued
411 W Morgan
Street
9/20/2021 9/20/2021 Grease trap spill onto parking lot Warning letter issued
1113 Temple
Street
9/28/2021 9/28/2021 Turbidity in creek Investigated and found not to be a water quality
concern; no further action taken
4200 Glenwood
Avenue
9/29/2021 9/29/2021 Possible <5 gallons of oil had left
NCDOT ROW but did not have potential
to impact surface waters
Investigated and found not to be a water quality
concern; no further action taken

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Permit No. NCS000245

Address Date
Received
Date
Responded Description Action Taken
15267 Tryon
Road
9/30/2021 9/30/2021 Possible wash water from the golf carts
washing draining to road
Investigated and found not to be a water quality
concern; no further action taken
NCDWR = North Carolina Division of Water Resources NOV = Notice of Violation
PUD = Public Utilities Department SWS = Solid Waste Services
SSO = Sanitary Sewer Overflow UST = Underground Storage Tank
RFD = Raleigh Fire Department TFS = Transportation Field Services
RPD = Raleigh Police Department NCDOT = NC Dept. of Transportation
ROW = Right-Of-Way SS = Sanitary Sewer
Section E: Construction Site Runoff Controls

E.1 Program Narrative
The City has had active construction site runoff control efforts (sedimentation and erosion control) since the 1970s. This program is delegated
and overseen by the North Carolina Department of Environmental Quality (NCDEQ). This program includes ordinances, plan review,
permitting, inspection, education, and enforcement activities. The City receives and responds to calls and concerns from citizens on a regular
basis. All related ordinance changes are noticed and subject to public hearing prior to adoption.

For all projects that disturb greater than one acre, a permit condition is applied which states that a NPDES construction permit is required, and
that application should be made to NCDEQ for coverage. In addition, all public ly funded projects that disturb greater than one acre are
required to obtain Erosion and Sediment Control plan approval through NCDEQ.

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Permit No. NCS000245

E.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
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.
Report number of
inspections and
enforcement activities
conducted
Inspections:
17,868
NOVs: 18
Civil Penalties: 2

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Stormwater MS4 Permit Annual Report
Permit No. NCS000245

Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
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.
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.
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.
Maintain public helpline.

Notify the Water Quality
Manager of program
modifications.
N/A, see reporting
metrics in Part II Section
E.2.a and Part II Section
D
N/A

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.
N/A, see reporting
metrics in Part II Section
B
N/A

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
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.
Report number of
inspections and
enforcement activities
conducted
The City issued
105 land
disturbance
permits that
required NPDES
construction
permit coverage
through
NCDEQ/DEMLR
Section F: Post-construction Site Runoff Controls

F.1 Program Narrative
The City’s post-construction site runoff controls remain in compliance with the City’s MS4 permit through the Neuse Nutrient Sensitive Waters
Management Strategy and Water Supply Watershed programs.

The City implements the Neuse Nutrient Sensitive Waters Management Strategy (15A NCAC 2B .0251) throughout the planning jurisdiction of
Raleigh. Water Supply Watershed IV (WS-IV) Programs (15A NCAC 2H .0216) are implemented within the Falls Lake watershed, Swift Creek
watershed, and Richland Creek watershed.

The City’s post-construction site runoff controls are deemed compliant with the implementation of the above-mentioned program measures.

The City has set up a private maintenance policy for owners of private properties with post-construction stormwater control measures (SCMs).
Every year, the private property owner must have a licensed professional engineer or landscape architect certify that the SCM is functioning
properly and must send that certification to the City. If these inspections and certifications are not made, then notification and enforcement
actions, including issuance of civil penalties, are taken.

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F.2 Best Management Practices

Permit
Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section
F.2 (a) Post-
construction
stormwater
management
program
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.
N/A, see reporting metrics documented in
Part II Section A
N/A
Part II Section
F.2 (b)
Strategies which
include SCMs
appropriate for
the MS4
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.
Report number of sites with SCMs

1,155
Report number of sites where SCM
inspections have been received
1,029
Report SCM enforcement activities 38 NOVs issued;
$10,000 in civil
penalties

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Permit
Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section
F.2 (c) Deed
restriction and
protective
covenants
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.
Verify that mechanisms such as recorded
deed restrictions, plats, and/or protective
covenants are provided so that
development activities maintain the project
consistent with approved plans
Plat maps and
maintenance
easements are
mechanisms utilized
to ensure SCMs are
maintained and
consistent with the
approved plans
Part II Section
F.2 (d)
Operation and
maintenance
plan
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.
Report number of sites with newly
approved operation and maintenance
plans
76
Part II Section
F.2 (e)
Educational
materials and
training for
developers
Develop targeted training and
outreach materials for
developers.

Conduct training for
developers.

Review and update training
and outreach materials if
necessary.

Conduct training for
developers.

Report types of fact sheets/educational
brochures developed and/or maintained

Web-based; Annual
Inspection
requirements, As-
Built requirements,
Outreach centered
around Stormwater
Design Manual
Update

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Permit
Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Notify the Water Quality
Manager of program
modifications.
Notify the Water Quality
Manager of program
modifications.
Report training events held for developers
and number of participants
Quarterly
Development
Stakeholder
Meetings held. At
these meetings,
updates and
stormwater training
given for all in
attendance. These
were held virtually
this past year and
averaged about 12
developer
representatives
attending.

Section G: Pollution Prevention and Good Housekeeping for Municipal Operations

G.1 Program Narrative
During this reporting period, the City’s Stormwater Management Division contracted with a consultant to assist with the further development of
the pollution prevention and good housekeeping program. Currently the Stormwater Management Division has developed and implemented a
facility inventory, inspection program, Site Pollution Prevention Plans (SPPPs) and Stormwater Pollution Prevention Plans (SW PPPs), spill
response guidance, and staff training.

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G.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section G.2 (a) Inventory
of municipal facilities and
operations
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.
Report inventory of
facilities determined to
have significant potential
for generating polluted
stormwater runoff

38 facilities; see Table G-1
below
Report number of
municipal SCMs by type
94 Total:
Wet Pond: 8
UG Detention: 6
Swale: 1
Sand Filter: 3
Cistern: 10
Permeable Pavement: 3
Level Spreader w/ Filter
Strip: 3
Green Roof: 3
Filterra: 14
Dry Pond: 10
Wetland: 8
Bioretention: 25
Part II Section G.2 (b)
Inspection and maintenance
Document the existing
inspection and
maintenance program for
Review the inspection
and maintenance
program guidance.
Report number of
facilities inspected

62 facilities were inspected

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
program for municipal facilities
and operations
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.

Inspect and document
municipal facility
inspections, including
any corrective actions.

Notify the Water Quality
Manager of program
modifications.
Report corrective actions
taken at municipal
facilities or operations
SPPPs and SWPPPs have
been developed for 17 facilities
during this reporting year and
are in final draft form
Part II Section G.2 (c) SPPPs
for municipal facilities
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.
Report number of
facilities with
SPPPs/SWPPPs.
38 facilities have
SWPPPs/SPPPs in either
complete or draft form

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section G.2 (d) Spill
response procedures for
municipal facilities and
operations
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.
Report number of spill
response procedures
developed/maintained
A city-wide spill response
document is in final draft stage
with a consultant
Part II Section G.2 (e) Prevent
or minimize contamination of
stormwater runoff from all areas
used for vehicle and equipment
cleaning
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.
Report number of
facilities performing
vehicle and equipment
cleaning operations
10
Report actions taken to
prevent or minimize
stormwater runoff from
vehicle and equipment
cleaning
Stormwater staff have
inspected all facilities where
vehicle and equipment cleaning
occur. Several facilities have
and maintain oil/water
separators, and SPPPs or
SWPPPs have been completed
or are in final draft form for
these facilities.

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section G.2 (f) Streets,
roads, and public parking lots
maintenance
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.
Report schedule of
maintenance activities
All streets are scheduled to be
swept twice per year.
Adherence to this schedule is
contingent on weather.
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.
Develop an MS4 Plan,
documenting the
conveyance system
inspection and
maintenance program,
including annual reporting,
Review the MS4 Plan
and SCM Plan, and
revise, if necessary.

Implement inspection
and maintenance
Report number of
municipal SCMs
inspected

94; all City-owned regulatory
compliance SCMs installed
prior to this reporting period
have been inspected and
certified reports have been
submitted.

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
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.
programs documented
in the MS4 Plan and
the SCM Plan.

Notify the Water Quality
Manager of program
modifications.
Report length or number
of storm sewer
conveyance system
components inspected
Number of bridges inspected: 0

Number of crossline
conveyances
(culverts) inspected: 1,374

Linear footage of drainage
system that has had CCTV
inspection: 105,365 lf

Linear footage of drainage
system that has had pole
camera inspection: 112,366 lf

Number of catch basins
inspected: 1,652

Number of junctions inspected:
40

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Report maintenance and
repair actions
Number of storm assets flushed
and/or
vacuumed: 771
Linear feet of stormwater pipe
flushed
and/or vacuumed: 22,326 lf
Number of crossline
conveyances
(culverts) maintained: 930
Number of inlet/junction tops
reset: 496
Number of inlets/junctions
maintained:
1,296
Number of pipes
repaired/replaced:
96
Linear feet or channels
redefined:
10,705 lf
Number of bridges repaired: 2
Number of culverts repaired: 4
Number of catch basins
repaired: 542
Number of junctions repaired:
16
Replacement: 27 pipes, 24
inlets,
3 junctions

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Report schedule of
maintenance activities
Inlets and accessible junctions
are inspected on a 3-year
rotation.

Pole camera and CCTV
inspection are
performed based on need and
as
required to support the asset
management and paving
programs.

Repairs and other maintenance
are made on an as-needed
basis
Part II Section G.2 (h) Staff
training
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.
Report types of training
provided and number of
staff who completed
PPGH training
686 City staff completed the
PPGH training module via the
City’s iLearn portal

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Permit No. NCS000245

Table G-1: PPGH inventory of facilities that have high potential to generate polluted stor mwater runoff

Facility Name City Department
Lake Woodard (PUD) Public Utilities
Northeast Remote Operations (Burwell St) VFS/Parks
COR Paratransit Operations Facility Transportation
Downtown Remote Operations Engineering Services/Transportation
Raleigh Transit Operations Facility Go Raleigh
New Bern Avenue Maintenance Facility Raleigh Fire Department/Engineering Services
Solid Waste-Wilders Grove Service Center Solid Waste Services
Yard Waste Facility Solid Waste, Yard Waste Facility
Smith Creek WWTP Public Utilities
Little Creek WWTP Public Utilities
Buffaloe Road Athletic Park Parks, Recreation and Cultural Resources
Walnut Creek Park North Parks, Recreation and Cultural Resources
Ridge Road Pool Parks, Recreation and Cultural Resources
Raleigh Fire Department Facility #1 Raleigh Fire Department
Mt. Herman Rd Operation Facility Transportation
Biltmore Hills Park Parks, Recreation and Cultural Resources
Millbrook-Exchange Park Parks, Recreation and Cultural Resources
Pullen Park Parks, Recreation and Cultural Resources
Optimist Park Parks, Recreation and Cultural Resources
Longview Pool Parks, Recreation and Cultural Resources
Neuse River Resource Recovery Facility Public Utilities
Dempsey E. Benton Water Treatment Plant Public Utilities
E. M. Johnson Water Treatment Plant Public Utilities
Raleigh Union Station Transportation
Bain Odor Control Station Public Utilities
Lake Johnson Parks, Recreation and Cultural Resources
Dorothea Dix Park Parks, Recreation and Cultural Resources
Keeter Training Center Raleigh Fire Department

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Facility Name City Department
Marsh Creek Facility Parks, Recreation and Cultural Resources
North Raleigh Operations Facility Public Utilities
South Raleigh Operations Facility Public Utilities
East Raleigh Operations Facility Public Utilities
E.M. Johnson Water Raw Water Intake Public Utilities
Walnut Creek Odor Control and Pump Station Public Utilities
Crabtree Creek Odor Control & Pump Station Public Utilities
Marsh Creek Odor Control Station Public Utilities
Buffaloe Road Odor Control Station Public Utilities
Hwy 50 Odor Control Station Public Utilities

Section H: Program to Monitor and Evaluate Stormwater Discharges to Municipal
Systems

H.1 Program Narrative
The City maintains an inventory of permitted hazardous waste treatment, disposal, and recovery facilities, industrial facilities that are subjec t to
Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA), and industrial facilities identi fied with an
industrial activity permitted to discharge stormwater to the permittee’s MS4. The City’s program prioritizes and inspects City-owned facilities
with Stormwater NPDES Industrial Permits annually and privately-owned facilities with Stormwater NPDES Industrial Permits at least once
every three years. Non-exposure sites permitted through the NCDEQ are inspected once every permit cycle.

H.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section H.2 (a)
Maintain an inventory of
industrial facilities
Update the industrial
facility inventory to
incorporate the current
permitted hazardous
waste facilities and
facilities that are subject
Maintain and update the
industrial facility
inventory as needed.

Report number of industrial
facilities identified within the
City’s corporate limits
75

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to Section 313 of SARA
Title III (EPA 2020).
Notify the Water Quality
Manager of program
modifications.
Part II Section H.2 (b)
Inspection program
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.
Report number of facility
inspections conducted
31
Identify program priorities City-owned facilities -
inspected annually
Privately-owned
facilities – inspected
once every three years
Non-exposure sites –
inspected once every
permit cycle
Part II Section H.2 (c)
Evaluate industrial
facilities discharging
stormwater to the City’s
MS4
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.
Report number of
deficiencies identified and
forwarded to enforcement
authority (NCDEQ)
2; NCG240012 and
NCG200335
Section I: Water Quality Assessment and Monitoring

I.1 Program Narrative
The City has developed and implemented a Water Quality Assessment and Monitoring Program that identifies monitoring locations, a
monitoring schedule, monitoring parameters, sample data analysis, and data evaluation and assessment.

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I.2 Best Management Practices

Permit
Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section I.2 (a)
Water Quality
Assessment and
Monitoring Plan
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.
Report updates and
revisions to the monitoring
plan
Updated sampling map for NPDES
sites, laboratory methods for
sample constituents, and SOP
information
Part II Section I.2 (b)
Water quality
monitoring
Conduct water quality
monitoring and data
evaluation, as
documented in the Water
Quality Assessment and
Monitoring Plan.
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
Report number of stream
sites monitored
18
Report number of samples
collected
1,080
Report parameters analyzed Total suspended solids, ammonia,
total Kjeldahl nitrogen,
nitrate/nitrite, total nitrogen (sum of
TKN and NO3/NO2, not collected
in the field), calcium, copper,
magnesium, total phosphorus,
zinc, total hardness, turbidity, E.
coli
Report trends in data from
stream sites monitored
For the resulting dataset, several
constituents reported high rates of
non-detect values: zinc (91%,
reporting limit .010 mg/L),
ammonia (97%, reporting limit 0.10
mg/L), and copper (96%, reporting
limit 0.0020 mg/L). Notably total
phosphorus also reported non-
detect values at a high rate (63%,
reporting limit 0.050 mg/L).

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Section J: Total Maximum Daily Loads
J.1 Program Narrative

The following TMDLs within Raleigh’s MS4 (corporate limits of the City of Raleigh) are noted in Section 2.5 and Table 2 of th e SWMP:
• Falls Lake
• Neuse River Estuary
• Pigeon House Branch
• Perry Creek

The Falls Lake and Neuse River Estuary TMDLs are regional TMDLs. The City is addressing the Falls Lake TMDL through its parti cipation in
the ongoing 4B Nutrient Management Strategy in co llaboration with other municipalities through the Upper Neuse River Basin Association. The
City is addressing the Neuse River Estuary TMDL through its implementation of the Nutrient Sensitive Waters Management Strate gy and City
ordinances adopted as required by State of North Carolina Neuse Nutrient Strategy Rules.

The Pigeon House Branch and Perry Creek TMDLs are local TMDLs. A portion of the Perry Creek watershed is within Raleigh's MS4 , and all of
the Pigeon House Branch watershed is within Raleigh's MS4. Because NCDEQ has not established numerical Waste Load Allocations (WLAs)
for these TMDLs between the City of Raleigh and other entities identified in the TMDL documents, the City has not developed T MDL plans for
these watersheds. In late 2021 the City will contract for consulting services to begin TMDL planning for these watersheds in accordance with
Part II.J.4 of the City's MS4 permit, which calls for the City to evaluate strategies and implement best management practices to address
pollutants of concern in these watersheds within Raleigh's MS4.

J.2 Best Management Practices

Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section J.3 (a)
Identify, describe, and
map watershed, outfalls,
and streams
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.
Report TMDLs with WLAs
within the MS4
N/A
Report changes in outfall
inventory that may be
contributing to impairment
of identified streams
N/A based on
current data.

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section J.3 (b)
Evaluate existing
measures
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.
N/A, Report pollutants of
concern and measures
taken for reduction
N/A
Part II Section J.3 (c)
Assessment of available
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.
Continue to monitor TMDL
development. If a TMDL is
developed that assigns an
individual numeric WLA to the
City, review and assess
monitoring data.
N/A, Report monitoring
data summary and data
trends
N/A
Part II Section J.3 (d)
Monitoring Plan
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.
N/A, Report updates to
monitoring plan
N/A
Part II Section J.3 (e)
Additional Measures
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.
N/A, Report additional
measures taken
N/A

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Permit Reference/BMP FY2021 FY2022-2026 Reporting Metric(s) 2020-2021
Part II Section J.3 (f)
Implementation 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
N/A, Report achievement
of schedule milestones
N/A
Part II Section J.3 (g)
Incremental Success
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
N/A, Report successes N/A
Part II Section J.3 (h)
Reporting
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
N/A Report annual
assessment outcomes
N/A
Part II Section J.4. If no
MS4 NPDES regulated
waste load allocation
(WLA) is specified in the
TMDL
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.
Report the
development/maintenance
of the TMDL Plan and
modifications, if necessary
N/A; Pending

Report BMPs implemented
N/A; Pending
Section K: Annual Assessment and Annual Summary

This reporting year has been one of internal review, expansion, and strategic improvement which has allowed our Stormwater Program to
increase the level of service that we provide to the residents of Raleigh.

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K.1 Assessment
During the 2020-2021 reporting period, City staff contracted with a private consultant to assist in the completion of a voluntary NPDES MS4 Self-
Audit and summary report to assist in identifying compliance gaps and opportunities for program improvement across a wide range of programs
and work groups. This assessment and final report was completed and provided to City staff in December 2020. Staff workgroups were then
established based on responsibilities and duties to further discuss, address, and improve their respective programs and program components.

K.2 Program Improvements
Several important initiatives stemmed from this report, with the revamping and updating of our Stormwater Management Plan (SWMP) being the
most immediate and impactful. The SWMP was provided to the Stormwater Management Advisory Commission for review and comment and
put out for public comment during this permit cycle. Upon completion of the comment period, the final version was submitted to NCDEQ in March
2021 for NCDEQ review. Upon approval, a wide range of other program improvements were implemented, and the tracking of revised
performance metrics commenced. The annual report template was then overhauled to align with the recently approved SWMP and to coincide
with NCDEQ guidance of using a tabular approach for reporting metrics as opposed to the traditional narrative reporting. Several projects were
initiated to address compliance gaps. Projects during this reporting period included, but are not limited to, the identification and improvement of
our “Major Outfall” inventory, drafting of a City-Wide Spill Response Guidance Document, and further development of our Pollution Prevention
and Good Housekeeping (PPGH) Program. We are also developing an SCM Inspection and Maintenance Plan, and a comprehensive MS4 O&M
Plan, both of which are ongoing. Smaller enhancements were wide-ranging and are continually occurring. Representative examples include the
expansion and refining our Industrial permit inventory, updating of the Illicit Discharge Detection and Elimination SOP, and further updates to our
Dry Weather Flow Outfall inspection practices.

This year has also seen the City of Raleigh further invest in its Stormwater Program through the creation of several new positions, including, but
not limited to, two new SCM Inspection and Maintenance staff, five additional staff for MS4 Asset Management and field condition assessment,
and the reclassification of an existing position to include more NPDES MS4 permit and program responsibilities.

K.3 Program Initiatives
Moving into the next reporting period, the City of Raleigh has several ongoing initiatives which include continued development of Service Level
Agreements (SLAs) to better manage City-owned SCMs across multiple city departments, completion of approximately sixteen (16) pollution
prevention plans for sites identified as high priority sites by our PPGH program, and the completion of multiple program plans for our Education
and Outreach, PPGH, IDDE, Industrial Facility Inspections Programs. This next reporting cycle will see the consultant-assisted completion of our
MS4 O&M Plan and SCM Inspection and Maintenance Plan and the start of multiple watershed studies throughout the City. Stormwater Staff
have begun working with a consultant to develop strategies to best address the Pigeon House Branch and Perry Creek TMDL watershed
requirements and have resources and funding allocated for FY23 to begin implementation of these TMDL plans that will be under development
during the upcoming reporting period.

Upon completion of the NCDEQ NPDES MS4 Audit proposed for FY22, City staff have budgeted funds and contracted with a consultant to further
revise the SWMP based on City staff feedback and in response to pending NCDEQ guidance and feedback.