NCS000540_FY21_AnnualReport(Narrative)_FINAL_20220524

Town of Mooresville
NPDES Phase 11 Stormwater Report
Permit number NCSooO540
JUIV 1. 2020 — June -qO. 2021
Report submitted on October 18,2021

Table of Contents
Introduction.................................................................................................................................... 5
Section 1: Public Education and Outreach Program ......................................................................
9
1.1 Goals and Objectives ..............................................................................................................
9
1.2 Target Pollutants and/or Stressors .......................................................................................
9
1.3 Target Audiences ...................................................................................................................
9
1.4 Residential and Industrial/Commercial Issues ....................................................................
lo
1.5 Informational Website ..........................................................................................................
10
1.6 Distribution of Public Education Materials ..........................................................................
11
1.7 Hotline/Helpline ...................................................................................................................
12
1.8 Public Education and Outreach Program .............................................................................
12
Section 2: Public Involvement and Participation Program ...........................................................
15
2.1 Public Review and Comment on Stormwater Plan ..............................................................
15
2.2 Target Pollutants and/or Stressors ......................................................................................
15
2.3 Target Audiences ..................................................................................................................
15
2.4 Residential and Commercial Issues .....................................................................................
15
Section 3: Illicit Discharge Detection and Elimination Program ..................................................
17
3.1 Illicit Discharge Detection and Elimination Program ..........................................................
17
3.2 Legal Authorities ..................................................................................................................
17
3.3 Storm Sewer System Map of Major Outfalls ........................................................................
17
3.4 Dry Weather Flow Detection Program .................................................................................
17
3.5 Investigate Sources of Identified Illicit Discharges ..............................................................
17
3.6 Track and Document Investigations of Illicit Discharges ....................................................
18
3.7 Employee Training ...............................................................................................................
18
3.8 Public Education ..................................................................................................................
18
3.9 Public Reporting ...................................................................................................................
18
3.10 Enforcement of the IDDE Ordinance .................................................................................
18
Section 4: Construction Site Runoff Controls Program ...............................................................
22
Section 5: Post Construction Site Runoff Controls Program ........................................................
22
5.1 Legal Authorities ..................................................................................................................
22
5.2 Strategies which include SCMs appropriate for the MS4 ...................................................
23
5.3 Plan Reviews ........................................................................................................................
23
5.4 Inventory of Projects with Post -Construction Structural Stormwater Control Measures..
23
2

5.5 Deed Restrictions and Protective Covenants ...................................................................... 23
5.6 Mechanism to require long-term operation and maintenance of Stormwater Control
Measures(SCMs) ...................................................................................................................... 23
5.7 Inspections .......................................................................................................................... 24
5.8 Educational materials and training for developers ............................................................. 24
5.9 Enforcement ........................................................................................................................ 24
Section 6: Good Housekeeping and Pollution Prevention for Municipal Operations .................. 28
6.1 Inventory of municipally owned or operated facilities ........................................................ 28
6.2 Operation and Maintenance (O&M) for municipally owned or operated facilities ............ 28
6.3 Spill Response Procedures .................................................................................................. 28
6.4 Streets, roads, and public parking lots maintenance .......................................................... 28
6.5 Operation and Maintenance (O&M) for municipally -owned or maintained catch basins
and conveyance systems ........................................................................................................... 29
6.6 Identify municipally owned or maintained structural stormwater controls ...................... 29
6.7 O&M for municipally -owned or maintained structural stormwater controls .................... 29
6.8 Pesticide, Herbicide and Fertilizer Application Management ............................................ 29
6.9 Staff Training ...................................................................................................................... 30
6.10 Prevent or Minimize Contamination of Stormwater Runoff from all areas used for Vehicle
andEquipment Cleaning .......................................................................................................... 30
9

Table of Tables
Table 1: Town of Mooresville Approximate Land Use Composition .............................................. 5
Table 2: Town of Mooresville Receiving Waters ............................................................................ 6
Table 3: Target Pollutants for the Public Education and Outreach Program ................................ 9
Table 4: Pollutants associated with residential and industrial/commercial issues ...................... lo
Table 5: Events attended by Stormwater Program Specialist in fiscal year 2021 (July 1, 2020-
June30, 2021) ............................................................................................................................... 11
Table 6: Stormwater-related articles published in Town of Mooresville Town Voice Newsletter in
fiscal year 2020 (July 1, 202o-June 30, 2021) .............................................................................. 12
Table 8: Public Education and Outreach BMP Table .................................................................... 14
Table 9: Public Involvement and Participation BMP Table .......................................................... 16
Table 11: Illicit Discharge Detection and Elimination Program BMP Table ................................ 20
Table 12: Post Construction Site Runoff Controls Program BMP Table ...................................... 25
Table 13: Good Housekeeping and Pollution Prevention Program BMP Table ............................ 31
2

Introduction
This report documents the Town of Mooresville's compliance with the National Pollutant
Discharge Elimination System (NPDES) permit number NCS000540 to discharge stormwater as
effective February 20, 2017. This report covers the reporting period from July 1, 202o through
June 30, 2021.
The Town of Mooresville began operating under a National Pollutant Discharge Elimination
System (NPDES) Phase II Municipal Separate Storm Sewer System (MS4) Permit on December
1, 2011. The permit has a 5-year cycle. The current permit is effective from February 20, 2017 to
February 19, 2022.
The tables within each of the Minimum Control Measure sections indicate the BMPs for each
minimum control measure and the associated measurable goal. Documentation is included
within each section showing what has been accomplished during the reporting period. Tables
detailing the implementation schedule and frequency of each BMP prescribed by the Town of
Mooresville's Stormwater Permit can be found at the end of each section.
Based on the US Census Bureau data, the population estimate for the Town of Mooresville in
July 2019 was 39,132. In April 2010, the population estimates base for the Town of Mooresville
was 34,367. The US Census Bureau data indicates an 13.9% growth in population between April
2010 and July 2019.
The Town of Mooresville MS4 jurisdictional area is approximately 24 square miles. The Town of
Mooresville is located in southern Iredell County in the Piedmont region of North Carolina. The
Town of Mooresville is within the Catawba and Yadkin/Pee-Dee River Basins and the municipal
limits extend into the WS-IV Critical and Protected areas as well as the WS-II Critical Area.
According to the Drainage Master Plan completed by ESP in January 2016, the land use
composition within the Town of Mooresville is as detailed in the table below:
Table i: Town of Mooresville Approximate Land Use Composition
Land Use Category�
% Total Area
Commercial
15%
Industrial
7%
Institutional
6%
Multi -Family
3%
Single -Family — High
19%
Single -Family — Low
5%
Single -Family — Medium
8%
utility
2%
Woods/Undeveloped
36%
The existing MS4 serving the Town of Mooresville is comprised of a network of open ditches,
swales, pipes, culverts and structural SCMs that are within the incorporated limits. The
stormwater maintenance crew maintains all stormwater drainage infrastructure within the
rights -of -way of Town owned and maintained roads and within easements dedicated to the
Town.
5

The Town of Mooresville MS4 conveyance system discharges to the following streams within the
Yadkin/Pee-Dee River Basin: Back Creek, Dye Branch, Rocky River, South Fork Withrow Creek
and West Branch Rocky River. It also discharges to the following streams within the Catawba
River Basin: Byers Creek, Davidson Creek, McCrary Creek, Reeds Creek and Work Creek.
TMDLs
No approved TMDL with an approved Waste Load Allocation (WLAs) assigned to stormwater at
this time.
impaired streams, likely sources, and existing programs that address the
impairment
Dye Creek (Branch) is categorized as Impaired (Category 5) due to Benthos Poor (Nar, AL, FW)
and was listed on the 303(d) list as of 1998.
Rocky River is categorized as Impaired due to ecological/biological integrity benthos, fecal
coliform, mercury in fish tissue, and turbidity. TMDL for mercury has been developed but is not
applicable to stormwater permittees at this time. TMDL for fecal coliform was approved in
September 2002 but does not include an approved WIA for stormwater. Rocky River is listed
on the 303(d) list for a turbidity impairment as of 1998 (IRCategorY 3al) and a Benthos Fair
impairment as of 1998 (IR Category 5).
The Town of Mooresville takes measures to address the TMDL for fecal coliform in Rocky River.
The Rocky River Wastewater Treatment operates under a NCGil0000 permit and has an
updated Stormwater Pollution Prevention Plan for the facility. The SWPPP outlines the layout of
the facility, outfall monitoring information and the best management practices used to limit
exposure. The Town implements a Post -Construction Site Runoff Control Program to address
potential pollutants from high density developments and an operation and maintenance
program for private stormwater control measures. Pet waste was also added to the list of Target
Pollutants in hopes to mitigate Fecal Coliform in Rocky River and educational materials are to
be distributed to appropriate audiences.
Table 2 below shows the Town of Mooresville receiving waters.
TMDLs
No approved TMDL with an approved Waste Load Allocation (WLAs) assigned to stormwater at
this time.
Impaired streams, likely sources, and existing programs that address the
impairment
Dye Creek (Branch) is categorized as Impaired (Category 5) due to Benthos Poor (Nar, AL, FW)
and was listed on the 303(d) list as of 1998.
Rocky River is categorized as Impaired due to ecological/biological integrity benthos, fecal
coliform, mercury in fish tissue, and turbidity. TMDL for mercury has been developed but is not
applicable to stormwater permittees at this time. TMDL for fecal coliform was approved in

September 2002 but does not include an approved WLA for stormwater. Rocky River is listed
on the 303(d) list for a turbidity impairment as of 1998 (IRCategorY 3al) and a Benthos Fair
impairment as of 1998 (IR Category 5).
The Town of Mooresville takes measures to address the TMDL for fecal coliform in Rocky River.
The Rocky River Wastewater Treatment operates under a NCGil0000 permit and has an
updated Stormwater Pollution Prevention Plan for the facility. The SWPPP outlines the layout of
the facility, outfall monitoring information and the best management practices used to limit
exposure. The Town implements a Post -Construction Site Runoff Control Program to address
potential pollutants from high density developments and an operation and maintenance
program for private stormwater control measures. Pet waste was also added to the list of Target
Pollutants in hopes to mitigate Fecal Coliform in Rocky River and educational materials are to
be distributed to appropriate audiences.
Table 2: Town of Mooresville Receiving Waters
River Basin
Receiving Stream Name
Stream
Segment
Water Quality
Classification
TMDL
(Yes/No)
Byers Creek
ii-89-(l)
WS_IV
No
Byers Creek
11-89-(2)
WS-IV; CA
No
Davidson Creek
11-1o6
WS-IV; CA
No
Catawba
McCrary Creek
11-91.
WS-IVB; CA
No
Reeds Creek
11-10441)
WS-IV,B
No
Reeds Creek
11-104-(2)
WS-IV,B; CA
No
Work Creek
11-105
WS-IV,B; CA
No
Back Creek
12-1o8-21-140-5)
WS-II;HQW
No
Dye Branch
13-7-2
C
No
Yadkin Pee-
Rocky River
13-17
C
Yes
Dee
South Fork Withrow
Creek
12-lo8-21-3-2
C
No
West Branch Rocky
River
13-7-3
C
No
Maintenance of the Town's MS4 conveyance system is currently funded using the stormwater
utility fee established in January 2015. The annual revenue of the stormwater utility fee for
fiscal year 2021 was approximately $1,879,48o and is used for permit compliance, maintenance
of the Town's MS4 and capital improvements to the Town's MS4.
Requirements of Watershed Protection Overlay Districts are detailed in the Town of Mooresville
Zoning Ordinance, established in accordance with the requirements in North Carolina General
Statutes Section 143-214-5. These standards are designed to regulate density and impervious
surface cover in water supply watershed areas in order to promote public health, safety, and
general welfare through control of non -point source pollution within watershed protection
areas.
7

The Town of Mooresville restructured the stormwater employees during fiscal year 2020. The
Stormwater Program Specialist position was filled in July 2020, after having been vacant since
October 2018 with active recruiting attempts. During this vacancy, a stormwater services
consultant managed certain aspects of the NPDES program and provided miscellaneous
support, while other responsibilities were divided between the Stormwater Maintenance
Supervisor and the Senior Engineer. Fiscal Year 2021 resumed normal duties for the Stormwater
Program Specialist who is responsible for the overall coordination, implementation, and
revision of this plan.
Figure 1 displays the organizational structure of the Town of Mooresville employees relevant to
the Stormwater Program.
Figure 1: Organizational Chart
E-03

Section i-: Public Education and Outreach Program
The Town of Mooresville's Public Education and Outreach Program educates residents, business
owners and other people within the community about the impacts of stormwater on the Town's
receiving waters, and what members of the community can do to reduce pollutants in
stormwater runoff. The Stormwater Program Specialist is responsible for implementation and
the program is funded through the Stormwater Utility Fee. Some requirements of the Public
Education and Outreach program are fulfilled through the Town's membership with the
Regional Stormwater Partnership of the Carolinas (RSPC), which is further discussed at the end
of this section.
The following sections discuss the BMPs implemented to fulfill these requirements. See Table 7
for the measurable goals, frequency and implementation schedule for each BMP.
i.i Goals and Objectives
The goals and objective of the Town of Mooresville's Public Education and Outreach Program is
to educate the community about the impacts of stormwater discharges on water bodies and the
steps the public can take to reduce pollutants in stormwater runoff through the distribution of
educational materials and/or outreach activities.
1.2 Target Pollutants and/or Stressors
Table 3 below describes the pollutants and pollutant sources targeted for the public education
and outreach program for the current permit cycle. Educational information provided will
include the impacts of stormwater pollution on water bodies and the steps the public can take to
reduce pollutants in stormwater runoff. Target pollutants are chosen based on citizen
complaints and requests for service, and information provided by Town staff.
Table 3: Target Pollutants for the Public Education and Outreach Program
Target Pollutant
Pollution Source
Grass Clippings, leaves
and yard waste
Residential areas, landscaped areas
Automotive Fluids
Residential areas
Pet Waste
Residential areas, public open areas
Trash
Garbage and litter
Illegal Dumping
Dumpsters
Storrawater education and pollution prevention information for the targeted pollutants are to be
done through the distribution of flyers at town events, social media posts, radio advertisements,
door hangers after storm drain marking events, and articles published in the Town Voice
newsletter included with the utility bill. See Section 1.6 for additional information regarding the
distribution of educational information addressing target pollutants and/or stressors.
1.3 Target Audiences
Homeowners and business owners are the target audiences for the public education and
outreach program. Homeowners were chosen as a target audience for the Public Education and
Outreach program because they are most likely to engage in activities that produce or involve
0J

the target pollutants listed in Table 3. The Town of Mooresville has a wide variety of businesses
which have the potential to contribute to stormwater pollution. A selection of businesses and
facilities (such as restaurants) which conduct activities that produce the target pollutants will
receive targeted education providing information regarding stormwater pollution prevention
specific to their business.
1.4 Residential and Industrial/Commercial Issues
The following residential and industrial/commercial stormwater issues will be addressed in the
Town's Public Education and Outreach Program.
Table 4: Pollutants associated with residential and industrial/commercial issues
Issue
Pollutant
Impacts
Lawn and garden
Grass clippings,
Excess nutrients discharged from the
care activities
leaves, yard waste
Town's MS4 and into receiving waters
increase algae growth which negatively
impacts aquatic plants and wildlife.
Automotive
Automotive Fluids
Negative environmental impacts on the
Maintenance
Town's receiving waters.
Pet Waste
Pet Waste
Excess nutrients and bacteria discharged
from the Town's MS4 can negatively impact
the Town's receiving waters.
Littering in
Trash
Increase in bacteria in stormwater runoff
neighborhoods,
which can negatively impact human health.
Dumpsters and Trash
Cans
Public education handouts and other distributed material addresses the pollutants listed above
that are associated with residential and industrial/commercial issues. Targeted educational
materials developed by the Regional Stormwater Partnership of the Carolinas which address the
pollutants listed in the table above are distributed throughout the fiscal year. Handouts are also
modified in an article format to be included in the Town Voice newsletter which is distributed to
both residents and businesses who receive a utility bill. See Sections 1.6 and 1.8 for further
information regarding distributed educational materials.
1.5 Informational Website
A website containing information on the Town's stormwater program is maintained by the
Stormwater Program Specialist. The link for the website is:
https: Ilmooresvillenc.govlroolStormwater
The website includes a link to the Town of Mooresville Post Construction and Illicit Discharge
and Connection Ordinance, contact information for the Stormwater Maintenance Supervisor,
forms for post construction stormwater control measures and general stormwater pollution
prevention information.
10

1.6 Distribution of Public Education Materials
Educational information about stormwater, stormwater pollution, and stormwater pollution
prevention is distributed periodically through the utility bill mailer and through flyers and
handouts distributed at various events in Mooresville throughout the year.
The Stormwater Program Specialist attends various meetings and events within the Town to
distribute handouts to citizens. Handouts contain information regarding stormwater pollution
and stormwater pollution prevention tips including: don't litter, pick up after your pet and pile
leaves, grass clippings and other yard waste above the curb and away from storm drains.
Targeted materials and advertisements for the Town's volunteer program are also distributed to
relevant audiences. Below is a table containing information on the date, event and
approximately how many citizens were reached at each event. Due to the Covid-19 pandemic in
IFY 21, several normally scheduled town events were cancelled or had limited attendance
abilities.
Table 5: Events in fiscal year 2020 (JUly 1, 2020-June 30, 2021)
Date of Event
Event
Approximate Number of Citizens Reached
lo/6/2020
NAF Student
50 (25 students in Fall, 25 in spring via
Presentation
Powerpoint)
5/4/2021-
Mooresville Youth
7
Council Meeting
6/5/2021
Officer Sheldon
216
Memorial Dog Park
Opening
6/7/2021
Winnie Hooper
9
Summer Camp
6/8/2021
Winnie Hooper
9
Summer Camp
6/17/2021
Winnie Hooper
9
Summer Camp
6/18/2021
Winnie Hooper
6
Summer Camp
6/23/2021
War Memorial
40
Summer Camp- Go
Green
6/24/2021
Winnie Hooper
8
Summer Camp
6/25/2021
Winnie Hooper
10
Summer Camp
Articles focused on stormwater pollution prevention information or on topics related to
stormwater are published in the Town of Mooresville utility mailing, the Town Voice, several
times per year. Approximately 14,50o residents and businesses receive a copy of the Town Voice
every month and it is also available online at hUps: I Imooresvillenc-90Y1478 /Town -Voice -
Newsletter. Stormwater specific article topics are chosen based on citizen reports, complaints
and requests for service as well as information provided by Town of Mooresville staff.
11

Additional outreach was completed via the Regional Stormwater Partnership of the Carolinas
via social media and TV campaigns which are included in Table 6.
Table 6: Stormwater-related articles, social media, and TV in fiscal year 2020 (JU1Y 1, 202o-June 30,
2021)
Date
Description
—Topic
August
Stormwater Precautions &
Town Voice Article
2020
Text Gov
October
Fats Oils and Greases (FOG's)
Town Voice Article
2020
November
Food Industry BMPs
Town Voice Article
2020
11/3/2020
Capital Improvement Projects
RSPC Facebook Post, shared by Town of
Mooresville Facebook page
January
Vehicle Maintenance BMPs
Town Voice Article
2021
April
Landscape Management
Town Voice Article
2021
BMPs
5/7/2021
WCCB Morning News
Public education and volunteer opportunities.
See RSPC Annual Report for approximate
interactions
June
Citizens Guide BMP's
Town Voice Article
2021
Door hangers are distributed in residential neighborhoods following a volunteer storm drain
marking event in that neighborhood. Door hangers help to bring attention to the storm drain
markers and provide information about stormwater pollution prevention. Stormwater pollution
prevention tips for residents include requesting that citizens pile leaves, grass clippings and
other yard waste above the curb and away from storm drains. From July 1, 2020 through June
30, 2021, the storm drain marking program was inactive due to the Covid-19 pandernic and
updates to the Town's volunteer program. This program will resume in FY22.
1.7 Hotline/Helpline
A stormwater hotline/helpline for requesting assistance with stormwater related issues is
maintained and advertised on the Town's stormwater website.
(https://www.mooresvillenc.90v/50o/Stormwater). The hotline/helpline is also listed on
distributed educational materials.
The Hotline, Stormwater Maintenance Supervisor, and Stormwater Program Specialist received
and documented a total Of 157 service requests or inquiries in fiscal year 2021. 50 of these calls
were received by the Stormwater Hotline, which is the general Public Operations Center phone
number. Service requests and work orders are used to track issues reported by citizens that may
require maintenance.
1.8 Public Education and Outreach Program
The Town's Stormwater Public Education and Outreach Program provides educational
information to residents about how they can protect water quality and reduce stormwater
12

pollution. Information is provided through Town Voice articles, the Town of Mooresville
Stormwater website, handouts, and door hangers. Educational demonstrations and
presentations are also available upon request.
Regional Stormwater Partnership of the Carolinas
The Town of Mooresville is a member of the Regional Stormwater Partnership of the Carolinas,
which is a non-profit organization that provides an opportunity for municipalities in the region
to collaborate on projects related to public education, outreach, and training. The RSPC allows
the Town of Mooresville to reach a wider audience and provide more outreach, education, and
public information than would be possible for us as an individual municipality. The RSPC
maintains an educational website with stormwater information and information on how to
report an illicit discharge, http://regionalstormwater.org.
Throughout the year, the RSPC holds numerous workshops and educational events. One
particularly beneficial workshop, Stormwater Workshop for Elected Officials, occurred on
February 23, 2021. This workshop introduced the Clean Water Act and Municipal Stormwater
Permit requirements, and discussed the goals and objectives of a stormwater program, including
fees, stormwater control measures, maintenance of aging infrastructure, and stream buffers.
This workshop had a particularly far reach, as those elected officials were then able to use the
newly acquired knowledge to make better decisions related to policy and educate and inform
their citizens. Additional workshops included the Fall Tech Talk "Economical Flood Sensor
Deployment for Flood Monitoring and Response", Post -Construction Stormwater Compliance
Workshop and the Spring Tech Talk "Clean Water Collaboration- Municipalities and
Riverkeepers".
The RSPC also completed a media campaign that ran throughout the fiscal year and included a
radio campaign, television platforms, and web -based television platforms. There was a total of
603 TV media spots in fiscal year 2021, resulting in about 2,473,000 impressions. The Town of
Mooresville Stormwater Program Specialist was the representative for WCCB News Rising
Spotlight discussing public education and volunteer opportunities. The spring and fall radio
campaigns consisted of 8o total ads and 270,400 impressions, and digital campaigns resulted in
an additional 327,891 impressions.
Town of Mooresville Events
Several normally scheduled events for the Town were cancelled during FY21 due to COVID-19
resulting in minimal in person outreach opportunities. The Stormwater Program Specialist and
Storrawater Maintenance Supervisor participated in the Offer Sheldon Memorial Dog Park
Grand Opening of June 5, 2021 and interacted with over 20o attendees. Dog Waste Bag
dispensers were handed out as a promotional item and a Rain Barrel was raffled off for
attendees who entered in the drawing. Educational materials were present at the booth and
targeted Best Management Practices flyers distributed to interested parties.
The Stormwater Program Specialist and RSPC AmeriCorps Member participated in several
summer camp programs at Town facilities in the month of June with approximately 91 students
being reached. Lessons included general Storrawater education, Stormwater Pollution
Prevention, The Water Cycle, Climate Change and All About Watersheds.
13

Table 7: Public Education and Outreach BMP Table
No.
BMP
Measurable Goal
Implementation
Frequency
Schedule
1.1
Goals and Objectives
Defined goals and objectives of the Local
Implemented in year one of
Review annually
Public Education and Outreach Program
the permit cycle.
and update if
based on community wide issues.
needed.
1.2
Describe target
The permittee shall maintain a description of
Target pollutants and/or
Review annually
pollutants and/or
the target pollutants and/or stressors and
stressors are identified in
and update if
stressors
likely son ces.
year one of the permit cycle.
needed.
1.3
Describe target
The permittee shall maintain a description of
Target audiences are
Review annually
audiences
the target audiences likely to have significant
identified in year one of the
and update if
storm water impacts and why they were
permit cycle.
needed.
selected.
1.4
Describe residential
The permittee shall describe issues, such as
Residential and
Review annually
and
pollutants, likely sources of those pollutants,
industrial/commercial
and update if
industrial/commercial
impacts, and the physical attributes of
issues are identified in year
needed.
issues
stormwater runoff, in their
one of the permit cycle.
education/outreach program.
1.5
informational Web
The permittee shall promote and maintain,
Informational website will
Review annually
Site
an internet web site designed to convey the
continue to be maintained
and update if
message.
throughout permit cycle.
needed.
1.6
Distribute public
The permittee shall distribute stormwater
Public education materials
Public education
education materials to
educational material to appropriate target
will be distributed
materials will be
identified target
groups. Instead of developing its own
beginning in year one of
distributed at least
audiences and user
materials, the permittee may rely on Public
permit cycle.
twice per year
groups. For example,
Education and Outreach materials supplied
throughoutthe
schools, homeowners,
by the state, and/or other entities through a
permit cycle.
and/or businesses.
cooperative agreement, as available, when
ting its own program.
1.7
Maintain Hotline/Help
The permittee shall promote and maintain a
Hotline/Helpline will
Continuously
line
stormwater hotline/helpline for the purpose
continue to be maintained
maintained.
ducation and outreach.
throughout the permit cycle.
1.8
Implement a Public
The permittee's outreach program, including
Public Education and
Review annually
Education and
those elements implemented locally or
Outreach program will be
and update if
Outreach Program.
through a cooperative agreement, shall
continued throughout the
needed.
include a combination of approaches
permit cycle.
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.

Section 2: Public Involvement and Participation Program
The Town of Mooresville implements a Public Involvement and Participation Program with the
goal of involving the citizens of the Town of Mooresville in the Stormwater Program and
complying with State and Local notice requirements. The Stormwater Program Specialist is
responsible for implementation and the program is funded through the Stormwater Utility Fee.
The following sections discuss the BMPs implemented to fulfill these requirements. See Table 8
for the measurable goal, frequency and implementation schedule for each BMP.
2.1 Public Review and Comment on Stormwater Plan
The Town of Mooresville Stormwater Plan is posted on the Town's Stormwater website
(https: Ilmooresvillenc.gov1soo Zstormwater). The Stormwater Program Specialist is available to
respond to any questions or comments from citizens. A public meeting is scheduled for
November 2021 to allow citizens the opportunity to provide input in person and ask any
questions about the Stormwater Program.
2.2 Target Pollutants and/or Stressors
See Section 1.2 for information regarding targeted pollutants and/or stressors.
2-3 Target Audiences
Volunteers with the storm drain marking program are encouraged to mark storm drains in
lower -income neighborhoods to provide additional education through the Public Involvement
and Participation program for these areas. This group was chosen because a higher number of
illicit discharges were noted in the lower income neighborhoods within the Town of Mooresville.
Neighborhoods where volunteer storm drain marking events take place also receive additional
education through doorhangers. These doorhangers have general stormwater pollution
prevention information in English and Spanish.
2-4 Residential and Commercial Issues
See Section 1.4 for information regarding residential and commercial issues.

Table 8: Public Involvement and Participation BMP Table
No.
BMP
Measurable Goal
Implementation
Frequency
Schedule
2.1
Allow the public an
The permittee shall conduct at least one
Stormwater Plan is made
Stormwater Plan will
opportunity to review
public meeting during the term of the
available to the public
be available
and comment on the
permit to allow the public an
throughout the permit cycle.
throughout the permit
Stormwater Plan
opportunity to review and comment on
cycle.
the Stormwater Plan.
2.2
Describe target
The permittee shall maintain a
Target pollutants and/or
Review annually and
pollutants and/or
description of the target pollutants
stressors are identified in year
update if needed.
stressors
and/or stressors and likely sources.
one of the permit cycle.
2.3
Describe target
The permittee shall maintain a
Target audiences are identified
Review annually and
audiences
description of the target audiences likely
in year one of the permit cycle.
update if needed.
to have significant storm water impacts
and why they were selected.
2.4
Describe residential
The permittee shall describe issues,
Residential and
Review annually and
and
such as pollutants, likely sources of
industrial/commercial issues are
update if needed.
industrial/commercial
those pollutants, impacts, and the
identified in year one of the
issues
physical attributes of stormwater
permit cycle.
runoff, in their education/outreach
program.

Section 3: Illicit Discharge Detection and Elimination Program
The Town of Mooresville implements an Illicit Discharge Detection and Elimination program
with the goal of detecting, eliminating and prohibiting non-stormwater discharges. The
Stormwater Program Specialist is responsible for implementation and the program is funded
through the Stormwater Utility Fee. The following sections discuss the BMPs implemented to
ftilfill these requirements. See Table 9 for the measurable goal, frequency and implementation
schedule for each BMP.
3.1 Illicit Discharge Detection and Elimination Program
The Illicit Discharge Detection and Elimination Program and the procedures associated with it
are detailed in the IDDE Program and Procedures Manual. This manual was amended in FY21
to provide updated information on administrative processes and documentation. The manual
describes how to investigate and track illicit discharges, how to conduct dry weather outfall
inspections, enforcement procedures, and how the program is to be evaluated. This manual also
describes how the Wastewater Treatment Plant and the Water Sewer Maintenance Department
is involved with the Illicit Discharge Detection and Elimination Program.
3.2 Legal Authorities
The Town of Mooresville Post Construction and Illicit Discharge and Connection Ordinance
became effective September 2, 2014. Article V of the Post Construction and Illicit Discharge and
Connection Ordinance defines illicit discharges and illicit connections. Article VI of the
ordinance discusses enforcement and the procedure to be followed in the event of violations of
the ordinance. There have been no updates to the ordinance since the chapter took effect on
September 2, 2014.
3.3 Storm Sewer System Map of Major Outfalls
The Town of Mooresville maintains a GIS map of the municipal storm sewer system including
inlets, pipes, outfalls and major outfalls. This map also shows rivers and streams in the area.
This map is updated periodically to reflect new construction and new information.
Per the Engineering Department, approximately 65 new features were added to the drainage
structures dataset and about 11 new features were added to the drainage pipes dataset in fiscal
year 2021. The GIS system now contains approximately 11,699 stormwater drainage structures.
3.4 Dry Weather Flow Detection Program
Details and written procedures associated with the dry weather flow detection program are
detailed in the Illicit Discharge Detection and Elimination program and procedures manual.
3.5 Investigate Sources of Identified Illicit Discharges
Article VI, Section 25-31 of the Phase II Post Construction and Illicit Discharge and Connection
Ordinance details the procedure for investigating reported illicit discharges. The Illicit
Discharge Detection and Elimination Program and Procedures Manual also details the process
for investigating illicit discharges.

In fiscal year 2021, 27 illicit discharge reports were made, 2 reports of which were made by
citizens. Out of these reported suspected illicit discharges, 23 were determined to be illicit
discharges. The Storrawater Program Specialist addressed illicit discharges through in person
interactions, letters and phone calls. If the Stormwater Program Specialist requests action to be
taken by the responsible party to correct the illicit discharge, a follow up investigation is
conducted to confirm the required action has been taken.
3.6 Track and Document Investigations of Illicit Discharges
Each report of an illicit discharge is tracked using a spreadsheet. Data tracked for each report
includes: the date(s) the illicit discharge was observed and reported, the results of the
investigation, any follow-up that was required, and the date the investigation was closed. This
database and all other documentation of illicit discharges is maintained by the Stormwater
Program Specialist. Locations of illicit discharges are tracked using ArcGIS.
3-7 Employee Training
All employees who as part of their normal job responsibilities may come into contact with or
otherwise observe an illicit discharge receive stormwater-related training at least once per year.
Training includes information on how to recognize an illicit discharge and how to report the
illicit discharge. Training can be in the form of posters, handouts and presentations.
Documentation of training. Training records will be maintained by the Stormwater Program
Specialist.
Beginning in 2021, all employees will receive documented training on Illicit Discharges through
Safety Skills. 45 employees had completed the required training during FY21 reporting. This is
not a full reflection of employees trained for the year as training is due in December of each
calendar year.
3.8 Public Education
In past years, articles on illicit discharges have been published in the Town Voice newsletter.
This newsletter is included with the utility bill and is sent to approximately 14,500 customers.
These articles discuss the definition of an illicit discharge, what citizens can do to prevent illicit
discharges, and how citizens can report suspected illicit discharges.
3.9 Public Reporting
The Town's stormwater website includes a section on illicit discharges which includes a phone
number and email address that the public is encouraged to use to report suspected illicit
discharges. The report of an illicit discharge will prompt the Stormwater Program Specialist to
begin carrying out procedures detailed in Article VI of the Phase II Post Construction and Illicit
Discharge and Connection Ordinance and the Illicit Discharge Detection and Elimination
Program and Procedures Manual. In fiscal year 2022, 2of the27 reports of suspected illicit
discharges were made by citizens. In coming years, more public education will be geared
towards Illicit Discharge Detection and Elimination to ftirther promote citizen reporting.
3-io Enforcement of the IDDE Ordinance
A spreadsheet with data showing the date and address for each NOV issued is maintained by the
Stormwater Program Specialist. This database can be used to track the number of NOVs sent to
I&

each address over time so that chronic violators can be recognized, and appropriate measures
can be pursued.
19

Table 9: Illicit Discharge Detection and Elimination Program BMP Table
No.
BMP
Measurable Goal
Implementation
Frequency
Schedule
3.1
Maintain an Illicit
Maintain a written Illicit Discharge Detection
A written IDDE program is
IDDE program
Discharge Detection
and Elimination Program, including provisions
maintained throughout the
will be reviewed
and Elimination
for program assessment and evaluation and
permit cycle.
and updated as
Program
integrating program.
needed.
3.2
Maintain adequate
The permittee shall maintain IDDE ordinances
Phase II Post Construction
Review annually
legal authorities
or other regulatory mechanisms that provides the
and Illicit Discharge and
and update if
legal authority to prohibit illicit connections and
Connection Ordinance
needed.
discharges.
became effective September
2)2014.
3.3
Maintain a Storm
The permittee shall maintain a current a map
Map of storm sewer system
Map will be
Sewer System Map of
showing major outfalls and receiving streams.
with major outfalls is
updated as
Major Outfalls.
updated periodically
needed.
throughout the permit cycle.
3.4
Implement a program
The permittee shall maintain a program for
Dry weather flow detection
Review annually
to detect dry weather
conducting dry weather flow field observations in
program is maintained
and update if
flows
accordance with written procedures.
throughout the permit cycle.
needed.
3.5
Investigate sources of
The permittee shall maintain written procedures
Procedures for investigation
Review annually
identified illicit
for conducting investigations of identified illicit
of identified illicit discharges
and update if
discharges.
discharges.
are implemented during year
needed.
one of the per it cycle.
3.6
Track and document
For each case the permittee shall track and
Tracking and documentation
Illicit discharge
investigations illicit
document 1) the date(s) the illicit discharge was
of illicit discharges is
investigations will
discharges
observed; 2) the results of the investigation; 3)
implemented at the start of
be tracked and
any follow-up of the investigation; and 4) the
the permit cycle.
documented
date the investigation was closed.
throughoutthe
e.

3.7
Provide Employee
The permittee shall implement and document a
Employee training for
Appropriate
Training
training program for appropriate municipal staff,
appropriate municipal staff
municipal staff
who as part of their normal job responsibilities,
is implemented in the first
will receive
may come into contact with or otherwise observe
year of the permit cycle.
training at least
an illicit discharge or illicit connection.
once per year.
3.8
Provide Public
The permittee shall inform public employees,
Public education materials
Public education
Education
businesses, and the general public of hazards
will be distributed beginning
materials will be
associated with illegal discharges and improper
in year one of permit cycle.
distributed at least
disposal of waste.
once per year
throughout the
yele.
3.9
Provide a public
The permittee shall promote, publicize, and
A public reporting
Continuously
reporting mechanism
facilitate a reporting mechanism for the public
mechanism is provided and
provided and
and staff to report illicit discharges and establish
maintained throughout the
maintained
and implement citizen request response
permit cycle.
throughoutthe
procedures.
permit cycle.
3. lo
Enforcement of the
The permittee shall implement a mechanism to
A mechanism to track the
Enforcement of
IDDE ordinance
track the issuance of notices of violation and
enforcement of the IDDE
the IDDE
enforcement actions as administered by the
ordinance is maintained
ordinance will be
permittee. This mechanism shall include the
throughout the permit cycle.
tracked and
ability to identify chronic violators for initiation
documented
of actions to reduce noncompliance.
throughout the
yele.
21

Section 4: Construction Site Runoff Controls Program
The Town of Mooresville relies upon the North Carolina Division of Energy, Mineral, and Land
Resources Sediment and Erosion Control Program and Iredell County Erosion Control Section
to comply with this minimum measure. The Town of Mooresville and Iredell County entered
into an Interlocal Agreement for Enforcement Services of Iredell County Soil Erosion and
Sediment Control Ordinance on September 15, 2009.
A spreadsheet is maintained by the Stormwater Maintenance Supervisor that details reported
construction site runoff issues and communication with Iredell County Erosion Control Section.
The Town of Mooresville Stormwater Maintenance Supervisor will continue to document
reports of issues with construction site runoff controls and reports to Iredell County Erosion
Control Section.
Section 5: Post Construction Site Runoff Controls Program
The Town of Mooresville implements and enforces a Post -Construction Site Runoff Controls
Program with the goal of addressing stormwater runoff from new development and
redevelopment projects that disturb greater than or equal to one acre, including projects less
than one acre that are part of a larger common plan of development or sale, that discharge into
the MS4. Another objective of this program is to address post -construction runoff with the
Phase II Post Construction and Illicit Discharge and Connection Ordinance and to ensure long-
term operation and maintenance of stormwater control measures. The Stormwater Program
Specialist id the primary position responsible for implementation of this program and
documentation of requirements. Engineering Staff including the Engineering Technician, Senior
Engineer, and Inspectors share the responsibility for implementation of this minimum measure
through their involvement in the plan review process and installation of new private Stormwater
Control Measures. The following sections discuss the BMPs implemented to fulfill these
requirements. See Table lo for the measurable goal, frequency and implementation schedule
for each BMP.
5-1 Legal Authorities
The Town of Mooresville adopted the Post Construction and Illicit Discharge and Connection
Ordinance, effective September 2, 2014. This ordinance establishes the legal authorities to meet
the objectives of the Post Construction Site Runoff Controls program.
The ordinance details requirements for stormwater control measures and refers to the Town of
Mooresville Land Development Standards, which references the latest edition of the Stormwater
Best Management Practices Manual prepared by NCDEQ, for the design requirements. The
ordinance establishes design and review criteria for the construction, function and use of
structural stormwater control measures (SCMs) that may be used to meet the standards
established by this ordinance and the Town of Mooresville Land Development Standards as well
as the administrative procedures for the submission, review, approval and disapproval of
stormwater management plans, and for the inspection of approved projects. Plan reviews and
inspections are carried out by Planning Department and Engineering Department staff.

Owners of post -construction structural SCMs are required to record and submit an Operation
and Maintenance agreement for each SCM. The operation and maintenance agreement includes
a statement that the Stormwater Maintenance Supervisor has the right to enter the facility if
they have reason to believe it has become necessary to inspect, monitor, maintain, repair or
reconstruct the SCM. Owners are also required to submit annual inspection reports that have
been signed by a qualified professional as defined by the ordinance beginning January ist of the
calendar year after the date of the as -built certification and each year thereafter on or before
March 3V` of that calendar year.
5.2 Strategies which include SCMs appropriate for the MS4
The Town of Mooresville Land Development Standards states that structural storrawater control
measures are to be designed following using the latest version of the Stormwater Design Manual
prepared by NCDEQ.
5-3 Plan Reviews
The Land Development process is described on the Land Development website,
https:llmooresvillenc.gOV/2.'IllLand-Development. Plan reviews and approvals are conducted
by Planning Department and Engineering Department staff. In fiscal year 2021, 31 plans with a
total lot size over 1 acre were approved for construction by Town staff in accordance with Post
Construction requirements.
The Town of Mooresville issues plan approval for the final construction plans. Once the
construction begins Town staff inspects the project for plan compliance throughout the entire
process. Once construction is complete the Town requires as-builts and certifications from the
consulting engineer that all infrastructure is built according to plan and subsequently Town
standards.
5.4 Inventory of Projects with Post -Construction Structural
Stormwater Control Measures
An inventory of post -construction structural stormwater control measures located within the
Town's corporate limits and required by the Phase II Post Construction and Illicit Discharge and
Connection Ordinance is maintained by the Stormwater Program Specialist.
5.5 Deed Restrictions and Protective Covenants
Storrawater Operation and Maintenance Agreements, signed by owners of Post Construction
Storrawater Control Measures, include a statement that the owner of the SCM agrees to notify
the Town of Mooresville of any problems with the system or prior to any changes to the system
or responsible party. This document is binding to the owner of the property to assure
maintenance is continued upon transfer of ownership.
5.6 Mechanism to require long-term operation and maintenance of
Stormwater Control Measures (SCMs)
The Phase II Post Construction and Illicit Discharge and Connection Ordinance requires that all
owners of post construction structural stormwater control measures installed as a requirement
of this ordinance to submit an Operation and Maintenance Agreement to the Engineering
23

Technician or Stormwater Program Specialist. The Operation and Maintenance Agreement
requires the owner to continuously operate and maintain the stormwater control and
management facilities. The agreements also detail the important maintenance procedures and
inspection activities to be performed for the specific type of structural stormwater control
measure. Owners of these structural stormwater control measures are also required by the
ordinance to submit annual inspection reports performed by a qualified professional as defined
by the ordinance. Operation and maintenance plans and annual inspection reports for Town
owned and maintained stormwater control measures are maintained by the Stormwater
Program Specialist. New Operation and Maintenance Agreements for Stormwater Control
Measures are recorded with Iredell County Record of Deeds.
5-7 Inspections
Procedures for inspections are included in the Operation and Maintenance Agreement signed,
recorded and submitted by the owning entity of the structural stormwater control measure. The
Town of Mooresville requires that owners of post -construction structural stormwater control
measures submit an annual inspection report performed by a qualified professional, as defined
by the ordinance, beginning January iFt of the calendar year after the date of the as -built
certification and each year thereafter on or before March 31st of that calendar year. 86
inspections were submitted in Fiscal Year 2021. All inspection reports and any related
documentation submitted to the Town of Mooresville is maintained by the Stormwater Program
Specialist.
5.8 Educational materials and training for developers
The Land Development Process Manual gives an overview of the land development process for
plan review. This manual refers to the Land Development Standards for design standards. After
plan approval, the developer receives a checklist that details requirements including recording
and submitting the Operation and Maintenance Agreement.
5.9 Enforcement
The Stormwater Program Specialist tracks information regarding issued notices of violation and
any enforcement actions taken including the property owner and location of the structural
stormwater control measure. Letters are mailed to the owners of post -construction stormwater
control measures for not submitting annual inspection reports by March 31, as required by the
Town of Mooresville Post Construction and Illicit Discharge and Connection Ordinance.
In Fiscal Year 202117 late inspection report notices were mailed out resulting in 9 inspection
requests fulfilled, 7 being dismissed as not being due for inspection and 1 delinquent NOV for
lack of submittal. Of the 86 reports received, 22 inspections resulted in maintenance
requirements to be completed in order to achieve compliance for 2021.
MA I

Table io: Post Construction Site Runoff Controls Program BMP Table
No.
BMP
Measurable Goal
Implementation
Schedule
Frequency
5.1
Adequate legal
Maintain through ordinance, or other regulatory mechanism,
The Phase II Post
Review annually
authorities
adequate legal authorities to meet the objectives of the Post-
Construction and
and update if
Construction Site Runoff Controls Stormwater Management
Illicit Discharge and
needed.
program.
Connection
Ordinance became
The permittee shall have the authority to review designs and
effective September
proposals for new development and redevelopment to
2,2014.
determine whether adequate stormwater control measures
will be installed, implemented, and maintained.
The permittee shall have the authority to request information
such as stormwater plans, inspection reports, monitoring
results, and other information deemed necessary to evaluate
compliance with the Post -Construction Stormwater
Management Program.
The permittee shall have the authority to enter private
property for the purpose of inspecting at reasonable times
any facilities, equipment, practices, or operations related to
stormwater discharges to determine whether there is
compliance the Post -Construction Stormwater Management
Program.
5.2
Strategies which
Strategies with include Stormwater Control Measures
Post Construction
Review annually
include Stormwater
(SCMs) appropriate for the MS4, include, but are not
and Illicit Discharge
and update if
Control Measures
limited to compliance with 15A NCAC 02H Section. l000
and Connection
needed.
(SCMs) appropriate
effectively meets the Post -construction Stormwater Runoff
Ordinance became
for the MS4
control requirements
effective September
2,2014

5.3
Plan reviews
The permittee shall conduct site plan reviews of all new
Implemented during
Plan reviews
development and redeveloped sites that disturb greater than
first year of permit
conducted as
or equal to one acre (including sites that disturb less than
cycle.
required
one acre that are part of a larger common plan of
throughout
development or sale). The site plan review shall address
permit cycle.
how the project applicant meets the performance standards
and how the project will ensure long-term maintenance.
5.4
Inventory of projects
The permittee shall maintain an inventory of projects with
An inventory is
Review annually
with post-
post -construction structural stormwater control measures
maintained
and update if
construction
installed and implemented at new development and
throughout the
needed.
structural
redeveloped sites, including both public and private sector
permit cycle.
stormwater control
sites located within the permittee's corporate limits that are
measures
covered by its post -construction ordinance requirements.
5.5
Deed Restrictions
The permittee shall provide mechanisms such as recorded
Implemented as part
Review and
and Protective
deed restrictions and protective covenants that ensure
of the plan approval
update as
Covenants
development activities will maintain the project consistent
and construction
needed.
with approved plans.
inspection process.
5.6
Provide a
The permittee shall implement or require an operation and
Operation and
Operation and
mechanism to
maintenance plan for the long-term operation of the SCMs
Maintenance
Maintenance
require long-term
required by the program. The operation and maintenance
Agreements and
Plans are
operation and
plan shall require the owner of each SCM to perform and
annual inspection
required to be
maintenance of
maintain a record of annual inspections of each SCM.
reports are required
submitted upon
Stormwater Control
Annual inspection of permitted SCMs shall be performed
per the Post
as -built
Measures (SCMs)
by a qualified professional.
Construction and
certification.
Illicit Discharge and
Annual
Connection
inspection
Ordinance, which
reports are
became effective
required to be
September 2, 2014
submitted by
March 31st Of
each year.
26

5.7
Inspections
To ensure that all stormwater control measures meet the
Written procedures
Written
permittee's performance standards and are being
per the Post
procedures will
maintained pursuant to the maintenance agreement, the
Construction and
be reviewed
permittee shall develop and implement a written inspection
Illicit Discharge and
annually and
program for structural stormwater controls installed
Connection
updated if
pursuant to the permittee's post -construction program.
Ordinance, effective
needed.
September 2, 2014.
Inspection
The permittee shall document and maintain records of
Inspection records
records
inspections, findings and enforcement actions and make
submitted
them available for review by the permitting authority.
annually to the
Town will be
maintained
continuously
throughout
permit cycle.
5.8
Educational
The permittee shall make available through paper or
Information
Information and
materials and
electronic means, ordinances, post -construction
available throughout
materials will be
training for
requirements, design standards checklist, and other
the permit cycle.
available to
developers
materials appropriate for developers. New materials may
developers
be developed by the permittee, or the permittee may use
throughout the
materials adopted from other programs and adapted to the
permit cycle.
permittee's new development and redevelopment program.
5.9
Enforcement
The permittee shall track the issuance of notices of violation
Implemented in year
Enforcement will
and enforcement actions. This mechanism shall include the
one of the permit
be tracked and
ability to identify chronic violators for initiation of actions
cycle.
documented
to reduce noncompliance.
continuously
throughout the
permit cycle.
27

Section 6: Good Housekeeping and Pollution Prevention for
Municipal Operations
The Town of Mooresville implements a Good Housekeeping and Pollution Prevention Program
for municipal operations with the goal of preventing or reducing pollutant runoff from
municipal operations. This program includes employee training to prevent and reduce
stormwater pollution from municipal activities. The Stormwater Program Specialist is
responsible for implementation and the program is funded through the Stormwater Utility Fee.
The following sections discuss the BMPs implemented to fulfill these requirements. See Table ii
for the measurable goals, frequency and implementation schedule for each BMP.
6.1 Inventory of municipally owned or operated facilities
An inventory of all municipally owned or operated facilities that have the potential to generate
polluted stormwater runoff has been developed and is maintained by the Stormwater Program
Specialist.
6.2 Operation and Maintenance (O&M) for municipally owned or
operated facilities
All municipally owned or operated facilities identified by the inventory as having the potential to
generate polluted stormwater runoff have a Stormwater Operation and Maintenance (O&M)
Plan. Stormwater O&M Plans detail the stormwater pollution prevention and good
housekeeping practices utilized by the employees at that facility. Each Stormwater O&M Plan
also details the frequency of facility inspections and the regular maintenance activities.
Stormwater O&M Plans for each facility are located either at the facility or in the Stormwater
Program Specialist's office if it is impractical to keep the plan at the facility. Operation and
Maintenance Plans for each facility are reviewed periodically and amended as needed.
Amendments to the Operation and Maintenance Plans are documented in the Operation and
Maintenance Plan for the facility. All Town facilities were inspected in Fiscal Year 2021
including visual inspections of all Parks.
6-3 Spill Response Procedures
The Stormwater O&M Plan for each facility contains Spill Response Procedures and a Spill
Response Log to be completed in the event of a spill.
6-4 Streets, roads, and public parking lots maintenance
The Town of Mooresville implements BMPs to reduce polluted stormwater runoff from
municipally -owned streets, roads, and public parking lots. The Town of Mooresville utilizes a
street sweeper to clean municipal streets and roads regularly and parking lots as needed. The
Stormwater Program Specialist tracks the streets swept by the street sweeper using an ArcGIS
map which is updated monthly. The decant area is primarily used by the street sweeper but is
also used by various other departments such as streets maintenance and buildings and grounds
maintenance. 274-15 tons of waste were removed from the decant area in Fiscal Year 2021. In
addition, the Sanitation Department hauled 4758 tons of trash, sediment and debris to the
Iredell County Landfill.

6.5 Operation and Maintenance (O&M) for municipally -owned or
maintained catch basins and conveyance systems
The stormwater maintenance staff is responsible for maintaining the municipally-owmed and
maintained catch basins and conveyance systems. Stormwater maintenance staff conducts
routine maintenance as well as respond to maintenance requests from citizens. The Town of
Mooresville also issues contracts to outside contractors for improvements to existing
municipally owned drainage systems that cannot be handled by Town of Mooresville staff or are
part of a larger infrastructure improvement project.
The Town of Mooresville has two projects currently designed with plans to construct. The Town
is including one to two projects every year in the five-year Capital Improvement Plan for the
Stormwater Utility to improve the stormwater infrastructure in areas of Mooresville identified
as having drainage issues by the Drainage Master Plan completed by ESP in January 2016.
The Town is also implementing a "Find it Fix It" program within GIS that includes a criticality
analysis so that aging infrastructure can be replaced according to a condition rating. The
application was started by the GIS Specialist and is in further development by the Stormwater
Program Specialist. The program is implemented by the Stormwater Maintenance Supervisor.
The Stormwater Maintenance Crew has begun analyzing and identifying drainage features in
need of upgrading.
6.6 Identify municipally owned or maintained structural stormwater
controls
An inventory of all municipally owned or maintained structural stormwater controls installed
for compliance with the Town of Mooresville Post Construction and Illicit Discharge and
Connection Ordinance will be maintained by the Stormwater Program Specialist. The list of
municipally -owned stormwater control measures is updated periodically as new stormwater
control measures are constructed.
6.7 O&M for municipally -owned or maintained structural stormwater
controls
All municipally owned or maintained structural stormwater controls installed for compliance
with the Town of Mooresville Post Construction and Illicit Discharge and Connection Ordinance
will be operated and maintained in accordance with the guidelines in the NCDEQ Stormwater
Design Manual at the time of construction and according to the engineered plans for the control
measure. These structural storrawater control measures will be regularly inspected by the
Stormwater Program Specialist, Stormwater Maintenance Supervisor, Engineering Technician,
or their designee. Inspection and maintenance records will be maintained by the Stormwater
Program Specialist.
6.8 Pesticide, Herbicide and Fertilizer Application Management
All employees who are required to apply pesticide, herbicide and/or fertilizer as part of their
regular duties possess the proper training and certifications to do so. Records of the necessary
training and certifications for each employee are maintained by the employee's supervisor as
part of the employee's personnel file.
=1

6.9 Staff Training
Employees involved in implementing pollution prevention and good housekeeping practices are
to receive training from the Stormwater Program Specialist at least once per year, every year of
the permit cycle. Training will cover the stormwater pollution prevention and good
housekeeping practices utilized at that employee's facility or stormwater pollution prevention
information to be used while performing regular duties. Training is to be performed by the
Stormwater Program Specialist.
All new employees that attend new employee orientation receive stormwater training that
discusses general stormwater information such as the definition of stormwater, stormwater
pollution, and what employees can do to prevent or minimize stormwater pollution. This
training is conducted either through a training video or a handout. During fiscal year 2021, 71
new employees received this training. New employees based in the maintenance departments at
the Public Operations Services facility and Building and Grounds Maintenance Shop receive
additional training in the form of a New Employee checklist. The checklist describes specific
actions employees can take to minimize or prevent stormwater pollution at the Public Services
Operations Center/Building & Grounds Maintenance Shop, as well as at their work sites.
A new training program was developed for 2021 to assure all employees receive training on
Illicit Discharges and Pollution Prevention and Good Housekeeping via Safety Skills online
format. Between July 1, 202o and June 30, 202145 employees completed Illicit Discharge
training and 103 employees completed Pollution Prevention and Good Housekeeping Training.
The remaining employees have until December 2021 to complete required training. Logs of
completion are kept with Risk Management Office and with the Stormwater Program Specialist.
6.io Prevent or Minimize Contamination of Stormwater Runoff from
all areas used for Vehicle and Equipment Cleaning
Employees are encouraged to use the vehicle wash bay located in the Fleet Services Building at
the Public Services Operations Facility. This vehicle wash bay drains to an oil/water separator
and then to the sanitary sewer system. If the vehicle cannot be washed in the vehicle wash bay,
employees are encouraged to wash their vehicle at a commercial car wash facility.
Fire Station vehicles are washed per the instructions in the Fire Administration and Operations
Department Apparatus Washing General Order. This General Order requires that Mooresville
Fire Rescue limit the amount of water discharged during cleaning or washing of vehicles, use a
hose with a low GPM discharge of water, and not discharge chemical of any type into storm
drains or environment.
30

Table ii: Good Housekeeping and Pollution Prevention Program BMP Table
No.
BMP
Measurable Goal
Implementation
Frequency
Schedule
6.1
Inventory of
The permittee shall maintain a current inventory of
Inventory is
Review annually and
municipally owned
facilities and operations owned and operated by the
maintained
update if needed.
or operated facilities
permittee with the potential for generating polluted
throughout the permit
stormwater runoff.
cycle.
6.2
Operation and
The permittee shall maintain and implement, evaluate
Implemented in first
Review annually and
Maintenance (O&M)
annually and update as necessary an Operation and
year of permit cycle.
update if needed.
for municipally
Maintenance (O&M) program for municipal owned
owned or operated
and operated facilities with the potential for
facilities
generating polluted stormwater runoff. The O&M
program shall specify the frequency of inspections and
routine maintenance requirements.
6.3
Spill Response
The permittee shall have written spill response
Implemented in first
Review annually and
Procedures
procedures for municipal operations.
year of permit cycle.
update if needed.
6.4
Streets, roads, and
The permittee shall evaluate existing and new BMPs
Implemented in first
BMPs are evaluated
public parking lots
annually that reduce polluted stormwater runoff from
year of permit cycle.
annually and updated
maintenance
municipally -owned streets, roads, and public parking
if needed.
lots within their corporate limits. The permittee must
evaluate the effectiveness of these BMPs based on cost
and the estimated quantity of pollutants removed.
6.5
Operation and
The permittee shall develop and implement an O&M
Implemented in first
Review annually and
Maintenance (O&M)
program for the stormwater sewer system including
year of permit cycle.
update if needed.
for municipally-
catch basins and conveyance systems that it owns and
owned or
maintains.
maintained catch
basins and
conveyance systems

6.6
Identify municipally
The permittee shall maintain a current inventory of
Implemented in first
Reviewed and
owned or
municipally -owned or operated structural stormwater
year of permit cycle.
updated as needed.
maintained
controls installed for compliance with the permittee's
structural
post -construction ordinance.
stormwater controls
6.7
O&M for
The permittee shall maintain and implement an O&M
Implemented in first
Review annually and
municipally -owned
program for municipally -owned or maintained
year of permit cycle.
update if needed.
or maintained
structural stormwater controls installed for
structural
compliance with the permittee's post -construction
stormwater controls
ordinance.
The O&M program shall specify the frequency of
inspections and routine maintenance requirements.
The permittee shall inspect and maintain municipally -
owned or maintained structural stormwater controls
in accordance with the schedule developed by
permittee. The permittee shall document inspections
and maintenance of all municipally -owned or
maintained structural stormwater controls.
6.8
Pesticide, Herbicide
The permittee shall ensure municipal employees and
Implemented in first
All training and
and Fertilizer
contractors are properly trained and all permits,
year of permit cycle.
certifications are
Application
certifications, and other measures for applicators are
continuously
Management.
followed.
maintained and
needed.
6.9
Staff training
The permittee shall implement an employee training
Implemented in first
Staff training for the
program for employees involved in implementing
year of permit cycle.
employees described
pollution prevention and good housekeeping
here will be
practices.
conducted at least
once per year.
6.10
Prevent or Minimize
The permittee shall describe and implement measures
Implemented in year
Review annually and
Contamination of
to prevent or minimize contamination of the
one of permit cycle.
update if needed.
Stormwater Runoff
stormwater runoff from all areas used for vehicle and
from all areas used
equipment cleaning.
for Vehicle and
Equipment Cleaning
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