NCS000436_Thomasville MS4 Permit Renewal Application 2_20210823

COMPREHENSIVE STORMWATER
MANAGEMENT PLAN

FOR
THE CITY OF THOMASVILLE

JUNE 2017

REVISED 2021
ii

TABLE OF CONTENTS
Table of Contents ............................................................................................................. ii
Definitions ....................................................................................................................... v
1 Storm Sewer System Information ............................................................................. 6
1.1 MS4 Conveyance System .................................................................................... 6
1.2 Land Use Composition Estimates: ........................................................................ 6
1.3 Estimate Methodology: ......................................................................................... 6
1.4 TMDL Identification ............................................................................................... 6
3 Existing Water Quality Programs .............................................................................. 8
3.1 Local Programs: ................................................................................................... 8
3.2 State Programs: .................................................................................................... 8
4 Permitting Information. .............................................................................................. 9
5 Co-Permitting Information ....................................................................................... 11
6 Reliance on other government entity to satisfy one or more permit obligations ...... 12
7 Stormwater Management Program ......................................................................... 13
7.1 Public Education and Outreach on Storm Water Impacts ................................... 13
7.1.1 BMP Summary Table ....................................................................................... 13
7.1.2 Target Audience .............................................................................................. 14
7.1.3 Target Pollutant Sources ................................................................................. 14
7.1.4 Outreach Program ........................................................................................... 14
7.1.5 Decision Process ............................................................................................. 14
7.1.6 Evaluation ........................................................................................................ 14
7.2 Public Involvement and Participation .................................................................. 15
7.2.1 BMP Summary Table ....................................................................................... 15
7.2.2 Target Audience .............................................................................................. 16
7.2.3 Participation Program ...................................................................................... 16
7.2.4 Decision Process ............................................................................................. 16
7.2.5 Evaluation ........................................................................................................ 16

iii

7.3 Illicit Discharge Detection and Elimination .......................................................... 17
7.3.1 BMP Summary Table ....................................................................................... 17
7.3.2 Storm Sewer System Map ............................................................................... 18
7.3.3 Regulatory Mechanism .................................................................................... 18
7.3.4 Enforcement: ................................................................................................... 18
7.3.5 Detection and Elimination ................................................................................ 18
7.3.6 Non Stormwater Discharges ............................................................................ 19
7.3.7 Outreach .......................................................................................................... 19
7.3.8 Decision Process ............................................................................................. 19
7.3.9 Evaluation ........................................................................................................ 19
7.4 Construction Site Stormwater Runoff Control ..................................................... 19
7.5 Post-Construction Storm Water Management in New Development and
Redevelopment .................................................................................................. 20
7.5.1 BMP Summary Table ....................................................................................... 20
7.5.2 Stormwater Management Options ................................................................... 21
7.5.3 Non-Structural BMP’s ...................................................................................... 21
7.5.4 Structural BMPs ............................................................................................... 21
7.5.5 Regulatory Mechanism .................................................................................... 21
7.5.6 Operation and Maintenance ............................................................................. 21
7.5.7 Education ......................................................................................................... 21
7.5.8 Decision Process ............................................................................................. 22
7.5.9 Evaluation ........................................................................................................ 22
7.6 Pollution Prevention/Good Housekeeping for Municipal Operations .................. 23
7.6.1 BMP Summary Table ....................................................................................... 23
7.6.2 Affected Operations ......................................................................................... 24
7.6.3 Training ............................................................................................................ 24
7.6.4 Maintenance and Inspections .......................................................................... 24
7.6.5 Vehicular Operations ....................................................................................... 25
7.6.6 Waste Disposal ................................................................................................ 25
7.6.7 Flood Management Projects ............................................................................ 25
7.6.8 Decision Process ............................................................................................. 25
7.6.9 Evaluation ........................................................................................................ 25

iv

7.7 Total Maximum Daily Loads (TMDL) .................................................................. 26
7.7.1 BMP Summary Table ....................................................................................... 26
7.7.2 Determination of TMDL’s ................................................................................. 27
7.7.3 Establishing a Water Quality Recovery Plan .................................................... 27
7.7.4 Decision Process ............................................................................................. 27
7.7.5 Evaluation ........................................................................................................ 27

v

DEFINITIONS
BMP – Best Management Practice also known as a Stormwater Control Measure
DEMLR – Division of Energy, Mining, and Land Resources
DEQ – Department of Environmental Quality (formerly DENR)
EPA – Environmental Protection Agency
Illicit Discharge – Any discharge to an MS4 that is not entirely composed of stormwater.
Exceptions include discharges from NPDES-Permitted industrial sources and
discharges from fire-fighting activities
MS4 – Municipal Separate Storm Sewer System. A conveyance or system of
conveyances (including roads with drainage systems, municipal streets, catch basins
curbs, gutters, ditches, manmade channels, or storm drains)
NPDES – National Pollutant Discharge Elimination System
SCM – Stormwater Control Measure
TMDL – Total Maximum Daily Load

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 6

1 STORM SEWER SYSTEM INFORMATION
Population Served: 27,043 (2015 estimate from the NC Office of Budget &Management)
Annual Growth Rate: 1.07%
Jurisdictional and MS4 Service Areas: Jurisdictional area: 16.66 square miles,
MS4: 16.66 square miles
1.1 MS4 CONVEYANCE SYSTEM
The City of Thomasville MS4 consists of a combination of storm drain piping, roadside
ditches, and sheet flow. New developments are required by City ordinance to have curb
and gutter drainage systems and high density developments are required to treat the
first 1" of runoff from the developed property. City streets are maintained by the City's
Street Department, which is housed in the Public Works Department. State roads are
maintained and managed by NCDOT.
1.2 LAND USE COMPOSITION ESTIMATES:
Residential: 59.90%
Commercial: 7.40%
Industrial: 9.30%
Open Space: 23.40%
1.3 ESTIMATE METHODOLOGY:
The land use estimate was based on the zoning within the jurisdictional area as of June
2009. The Piedmont Triad Council of Government’s GIS system provided the zoning
data, and includes the right-of-way areas.
1.4 TMDL IDENTIFICATION
The City of Thomasville drains into several impaired waters which in turn drain into the
Rich Fork Creek and Hamby Creek Watersheds in the Yadkin River Basin. The Rich
Fork Creek and Hamby Creek Watersheds have an active TMDL for Fecal Coliform.
The City of Thomasville has primarily addressed this TMDL through improvements in its
Waste Water Treatment Facility and through improvements in its collection system.
Improvements in the collection system are intended to reduce sanitary sewer overflows,
thereby limiting fecal coliform in the downstream waters.

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 7

2 Receiving Streams
Table 1. Yadkin Pee-Dee River Basin

Receiving Stream Name

Stream Segment

Water Quality
Classification
Use
Support
Category
Use
Support
Rating
Water
Quality
Issues
Hamby Creek 12-119-7-4a C 1 Supporting N/A
Hanks Branch 12-119-7-3-1 C 1 NR N/A
Hunts Fork 12-119-7-3 C 1,3 Impaired 5
Jimmys Creek 12-119-7-4-2 C 1 NR N/A
Kennedy Mill Creek 12-119-7-2 C NR NR N/A
North Hamby Creek 12-119-7-4-1 C 1,3 Impaired 5
1 Aquatic life and secondary recreation
2 Fish consumption
3 On 303(d) list
4 Fecal Coliform, Copper, Nutrients, Ecological/Biological Integrity of Fish and Benthos
5 Ecological/biological Integrity of Benthos

All Ratings and Data based on Final 2012 303d List published by NC DWQ.

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 8

3 EXISTING WATER QUALITY PROGRAMS
3.1 LOCAL PROGRAMS:
The City of Thomasville currently maintains a NPDES Phase II Stormwater Program.
3.2 STATE PROGRAMS:
All development activities within the Watershed Districts are subject to the standards,
usage conditions and other regulations contained in the Rules and Requirements of the
Surface Water Supply Protection Rules adopted by the North Carolina Environmental
Management Commission.
NCDEQ implements the NC Erosion and Sediment Control Program within the City of
Thomasville and its ETJ area.
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 9

4 PERMITTING INFORMATION.
Table 2. Responsible Contacts
Position Name Phone No. Fax No. Email
City Clerk Wendy Martin 336/475-4214 [e-mail]
City Attorney Mitsi Whitman 336/476-3158
City Manager Michael
Brandt
336/475-4559 336/475-4283 Michael [e-mail]
City Planning
Director
Chuck
George
336/475-4255 336/475-4258 [e-mail]
Public Services
Director
Morgan
Huffman
336/475-4220 336/475-4283 [e-mail]
Public Works
Director
Daryl Poole 336/475-4239 [e-mail]
Stormwater
Engineer - Alley,
Williams Carmen &
King,Inc.
Josh Johnson 336/226-5534 336/226-3034 [e-mail]
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 10

Signing Official: City Manager – Michael Brandt
Duly Authorized Representative: NA
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 11

5 CO-PERMITTING INFORMATION
Not applicable
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 12

6 RELIANCE ON OTHER GOVERNMENT ENTITY TO SATISFY ONE OR MORE PERMIT OBLIGATIONS
The City of Thomasville will rely on the State Erosion and Sediment Control Program
and the Department of Water Quality’s general stormwater permit program for
construction activities to meet the construction site stormwater runoff control
requirement. There are no legal agreements in place to establish responsibilities.
The City also contracts with the Piedmont Triad Regional Council’s Stormwater SMART
program. The program handles most of the City’s educational responsibilities.
Contact Information:
NC Sedimentation and Erosion Control Program
Winston-Salem Regional Office
Matthew Gantt, P.E.
450 West Hanes Mill Rd. Suite 300
Winston-Salem, NC 27107
336/776-9800 / 336-776-9654

Piedmont Triad Regional Council
Stormwater Smart
Danica Heflin
1398 Carrollton Crossing Drive, Kernersville, NC 27284
[phone]
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 13

7 STORMWATER MANAGEMENT PROGRAM
7.1 PUBLIC EDUCATION AND OUTREACH ON STORM WATER IMPACTS
7.1.1 BMP Summary Table
BMP Measurable Goals YR
1
YR
2
YR
3
YR
4
YR
5 Responsible Position/Party
Maintain an education plan Maintain education plan. Include in Plan the BMPs, schedule,
targeted audiences, and measurable goals. Summarize plan
and implementation progress in each annual report.
X X X X X Public Works Director
Stormwater Engineer
School Programs Maintain school children education program. Focus on basic
messages regarding clean water and the things they can do at
home to help. Track the number of children reached and the
subject covered and report annually.
X X X X X Public Works Director
Stormwater Engineer
Mailers, brochures, posters Distribute bilingual mailer for insert in utility bills. Distribute
bilingual brochures and posters for distribution at City Hall.
Target homeowners and businesses with messages about how
they can reduce pollution picked up by stormwater. Track
number of homes and businesses reached by mailer and report
annually.
X X X X Public Works Director
Stormwater Engineer
City’s web page Link to other stormwater websites. Give tips on reducing
pollution. Report annually.
X X X X X Public Works Director
Stormwater Engineer
Festivals, parades, local
fairs
Participate in local festivals annually by providing a stormwater
information booth starting. Provide bilingual messages on the
importance of clean water and on specific activities that can be
carried out to help keep stormwater clean.
X X X X X Public Works Director
Stormwater Engineer
Business and Industry
education and outreach
Maintain program for educating business and industry using
brochures or pamphlets and report annually on number of
businesses reached and number of employees educated. Focus
on workplace issues to reduce pollutant loading. Target hot spot
businesses.
X X Public Works Director
Stormwater Engineer
Helpline / Hotline All stormwater related calls will be forwarded to the City Planner
who will then distribute the information to other employees.
X X X X X Public Works Director
Stormwater Engineer
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 14

7.1.2 Target Audience
Thomasville residents, school children, local businesses (including gas station
owners and landscaping companies) and industry, will be targeted because
these groups have the most impact on stormwater pollution prevention.
7.1.3 Target Pollutant Sources
The education program will target total suspended solids and nutrient loading
because turbidity, sedimentation, and nutrients are the pollutants of concern in
downstream waters. In addition, floatables, trash, and debris will also be
targeted. The education program will also address the proper use and disposal of
typical household chemicals, garden chemicals, and used motor oil.
7.1.4 Outreach Program
School programs, printed materials to be distributed via mail and public events,
and participation in state cleanup programs will be used to reach the target
audience. By using these methods, the education program will be expected to
reach all residents of Thomasville, as well as those that do business here, over
the course of the five year permit period. As a result of this outreach program,
the target audience will be informed of the importance of reducing storm water
pollution and ways they can incorporate pollution reduction in their daily lives.
Direct Education was chosen over mass media due to availability of the
cooperative stormwater education program, Stormwater Smart, and due to
studies showing the effectiveness of direct education over mass media.
7.1.5 Decision Process
The formation of the storm water public education and outreach program was
based on the mechanisms currently in place, and their means and effectiveness
of communicating and educating the public about the issues of stormwater
pollution prevention. Each of the BMP’s selected was judged to be an effective
and economical tool for educating the general public and/or specific groups
within the community, with a specific measurable goal with which to gauge its
effectiveness.
7.1.6 Evaluation
The education and outreach program will be evaluated based on how each
individual BMP is meeting its measurable goal at the end of each reporting
period. Changes will be considered for any BMPs that are not meeting the
measurable goals.
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 15

7.2 PUBLIC INVOLVEMENT AND PARTICIPATION
7.2.1 BMP Summary Table
BMP Measurable Goals YR
1
YR
2
YR
3
YR
4
YR
5 Responsible Position/Party
Public Meeting A public meeting will be held annually to discuss the
implementation of the permit. This meeting will provide
the public with the opportunity to be involved with the
stormwater program and will serve as a better conduit
for public input than the stormwater committee used
previously. More meetings may be held if public
involvement is substantial.
X X X X X Public Works Director
Stormwater Engineer
Volunteer Stormwater Program The City will promote various volunteer stormwater
programs annually. These will include Big Sweep,
Adopt-A-Stream programs, and Storm Drain Stenciling.
The number of participants will be reported annually.
X X X X X Public Works Director
Stormwater Engineer
Helpline / Hotline All stormwater related calls will be forwarded to the
City Planner who will then distribute the information to
other employees.
X X X X X Public Works Director
Stormwater Engineer
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 16

7.2.2 Target Audience
The City’s stormwater committee will be discarded in favor of an annual public
meeting. The public meetings will allow the public an opportunity to review the
stormwater management program and will target all interested and affected
members of the Thomasville community. Additional meetings may be held if
public involvement is substantial.
The City’s committee was ineffective in soliciting widespread public input.
7.2.3 Participation Program
The public was originally involved in the development of the stormwater permit
and management program through a public hearing in 2005. Public participation
opportunities will be implemented throughout the life of the permit through the
Volunteer Stormwater Programs and the Annual Public Meeting.
7.2.4 Decision Process
A public meeting is necessary for public participation and input. The other BMPs
were selected to give the public a choice of both active and passive participation
roles.
7.2.5 Evaluation
The Public Involvement and Participation program will be evaluated based on
how each individual BMP is meeting its measurable goal at the end of each
reporting period. Changes will be considered for any BMPs that are not meeting
the measurable goals.

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 17

7.3 ILLICIT DISCHARGE DETECTION AND ELIMINATION
7.3.1 BMP Summary Table
BMP Measurable Goals YR
1
YR
2
YR
3
YR
4
YR
5 Responsible Position/Party
Review Illicit Discharge Ordinance Review Illicit Discharge Ordinance and make any
necessary revisions.
X X X X X City Attorney
Public Works Director
Stormwater Engineer
Review Illicit Discharge Program Review Illicit Discharge Program and make any
necessary revisions.
X X X X X Public Works Director
Stormwater Engineer
City Planner
Maintain storm sewer system map
showing outfalls and the receiving
body of water.
Maintain system map in support of inspection program.
The map will note outfalls and receiving body of water
for each outfall. Report annually on progress.
X X X X X Public Works Director
Stormwater Engineer
Maintain an inspection and
elimination program within the
community.
Define areas of the community that will be inspected
for illicit connections and show on a map the progress
made year by year.
X X X X X Public Works Director
Stormwater Engineer
Coordinate with local health
department on failing septic systems,
locating problem areas in the system
map. Provide public information on
septic system management.
Provide a fact sheet on septic system management,
Note date of distribution and number of copies placed.
Complete by end of year two and update in year five.
X X Public Works Director
Stormwater Engineer
Train employees on how to inspect
for illicit connections and establish a
tracking system for managing
reported problem areas.
Provide materials through HR to all public employees
in illicit connections and how to recognize one.
Summarize in annual report.
X X X X X Public Works Director
Stormwater Engineer
Public Services Director
Dry Weather Flow Detection Dry Weather testing will be done at least bi-annually in
accordance with the IDDE program, dependent upon
other IDDE investigations.
X X X X X Public Works Director
Stormwater Engineer
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 18

7.3.2 Storm Sewer System Map
Storm sewer system has been mapped and will be inspected during the course
of normal maintenance operations by the public service department. The route of
the system, locations of pipes, drainage ditches, and outfalls will be maintained
on a paper map and/or electronic map. The map will be updated as needed
during subsequent maintenance operations.
7.3.3 Regulatory Mechanism
The City has an Illicit Discharge Ordinance which allows for inspection,
maintenance, and prohibits illicit discharges.
7.3.4 Enforcement:
There are provisions in the amended ordinance for enforcement actions and
penalties for dumping, spills, and willful illicit connection.
7.3.5 Detection and Elimination
After the field screening is complete, the City will take measures to identify and
remove illegal discharges. Identifying illegal discharges may require a
combination of office and field work. After the field screening, staff will consult the
jurisdiction-wide information they have compiled to obtain information about the
land uses, infrastructure, industries, potential sources and types of pollution that
may exist in the drainage area of the outfall.
After priority areas have been identified in the office, a systematic field
investigation will be planned that minimizes the amount of resources required to
identify the source. The following field methods may be used to identify and trace
the source of illegal discharges:
• Site Investigation
• Dry weather flow observations
• Smoke Testing/Dye Testing
• Television Inspection
The right of entry established in the ordinance will provide access for inspection if
the origin of the discharge is in doubt. Once an illegal discharge is located and
confirmed through field screening, staff will notify the responsible party verbally if
possible and follow-up with written notification. If the responsible party does not
comply with the removal schedule provided by the City, or receive approval for a
revised schedule, the City will take enforcement action and the connection will be
removed at the responsible party’s expense.

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 19

7.3.6 Non Stormwater Discharges
Currently there are no known non-stormwater discharges that are a significant
contributor to the MS4. If any are identified in the future, they will be addressed
at that time.
7.3.7 Outreach
City employees will be informed of the hazards associated with illegal discharges
and improper disposal of waste as part of their general training requirements.
These will be addressed in the Pollution Prevention/Good Housekeeping section
of this plan, and will include training in hazardous material handling and disposal,
as well as notices and signs posted in the appropriate areas.
The general public will be educated through the BMP’s listed in the Public
Education section of this plan. These educational BMP’s will include brochures,
public service announcements, and business education and outreach programs.
7.3.8 Decision Process
The formation of the storm water Illicit Discharge Detection and Elimination
program was based primarily on regulatory mechanisms. The regulatory,
educational, procedural BMP’s selected were judged to be an effective means of
detecting and eliminating illicit discharges.
7.3.9 Evaluation
The effectiveness of the program will be gauged by the total number of illicit
connections detected and removed each year and with public complaints. If the
total number remains constant, or increases, changes will be made to the public
education program and/or the City ordinance to allow for greater enforcement
and penalties.

7.4 CONSTRUCTION SITE STORMWATER RUNOFF CONTROL
The City of Thomasville will rely on the North Carolina State Erosion and Sediment
Control Program and the Department of Water Quality’s general stormwater permit
program for construction activities to meet the construction site stormwater runoff
control requirement.
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 20

7.5 POST-CONSTRUCTION STORM WATER MANAGEMENT IN NEW DEVELOPMENT AND REDEVELOPMENT
7.5.1 BMP Summary Table
BMP Measurable Goals YR
1
YR
2
YR
3
YR
4
YR
5 Responsible Position/Party
Review the Post Construction Ordinance Review the Post Construction Ordinance for
compliance with NC DWQ guidance and local
effectiveness.
X City Attorney
Public Works Director
Stormwater Engineer
Review standards and policies that ensure
structural BMPs will be in conformance with
the state’s Stormwater Management
Design Manual
Review local standards to remain in compliance
with the NC DWQ BMP Manual. Additional
measures and techniques may be added to the
local ordinance as they are investigated.
X X X X X Public Works Director
Stormwater Engineer
Review maintenance standards and
inspection program to ensure that on-site
controls continue to function as designed.
Review the maintenance standards and
inspection program for local on-site controls.
X X Public Works Director
Stormwater Engineer
Maintain the education program created for
land developers and the public.
Maintain the education program created for land
developers and the public detailed in other
BMP’s. Report annually on progress made.
X X Public Works Director
Stormwater Engineer
Coordinate with the county health
department on developing and
implementing an oversight program to
minimize the potential for fecal coliform
contamination by ensuring proper operation
and maintenance of on-site wastewater
treatment systems.
Coordinate with county health department. Report
Annually on progress made.
X X X X Public Works Director
Stormwater Engineer
Green Infrastructure Practices and
Strategies will be encouraged.
Green Infrastructure Practices and Strategies will
be encouraged and existing standards may be
eased to encourage green projects.
X Public Works Director
Stormwater Engineer
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 21

7.5.2 Stormwater Management Options
The existing land usage ordinance has a post-construction stormwater runoff
management program for new development and redevelopment projects that
disturb greater than, or equal to, one acre. This ordinance may be revised prior
to the end of year 3 of the permit to incorporate Low Impact Development (LID)
provisions.
7.5.3 Non-Structural BMP’s
The receiving streams in the City’s watershed are classified as Nutrient Sensitive
Waters; therefore the post construction ordinance ensures that best management
practices for reducing nutrient loading are implemented. In addition, a nutrient
application (both inorganic fertilizer and organic nutrients) management program
has been developed and is included in the stormwater management program.
7.5.4 Structural BMPs
The City has certified its BMP manual as equal to the NC DWQ BMP Manual.
The City reviews structural BMP’s based on the NC DWQ BMP Manual and will
continue to do so in the future. The City may investigate additional qualified
BMP’s in the future. These additional techniques are to be evaluated based upon
field testing and evaluation by the City’s Engineer.
7.5.5 Regulatory Mechanism
The City’s Post-Construction Ordinance establishes the City’s ability to regulate
new development for water quality compliance.
7.5.6 Operation and Maintenance
The City’s Post-Construction Ordinance establishes the City’s ability to regulate
new development for water quality compliance. The ordinance includes
guidelines for delegating routine and non-routine maintenance responsibilities to
ensure access for inspections, and providing a mechanism for enforcement.
The City will require annual submissions of BMP inspection reports and the City
will inspect each BMP during each permit cycle.
7.5.7 Education
An education process for developers and citizens about new development with
respect to stormwater and water quality has been established and is ongoing.

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 22

7.5.8 Decision Process
The post-construction stormwater management program ensures that controls
are in place that will prevent or minimize water quality impacts from new
development and redevelopment projects. These controls include post-
construction ordinance to address post-construction runoff control from new
development and redevelopment projects and ensure adequate long-term
operation and maintenance of BMPs. Future revisions to this ordinance will be
intended to enhance water quality.
7.5.9 Evaluation
The post-construction site management for new and re-development activities
program will be evaluated based on how each individual BMP is meeting its
measurable goal at the end of each reporting period. Changes will be considered
for any BMPs that are not meeting the measurable goals.

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 23

7.6 POLLUTION PREVENTION/GOOD HOUSEKEEPING FOR MUNICIPAL OPERATIONS
7.6.1 BMP Summary Table
BMP Measurable Goals YR
1
YR
2
YR
3
YR
4
YR
5 Responsible Position/Party
Maintain Inventory and O&M Manual
of Municipal Facilities and Operations
Maintain, update, inspect annually all Municipal
Facilities and update as needed Operation and
Maintenance Manual for every facility and operation.
X X X X X Public Works Director
Stormwater Engineer
Spill Response Procedures Maintain or create Spill Response Procedures X X X X X Public Works Director
Stormwater Engineer
Streets, Roads, and Public Parking
Lots Maintenance Program
Evaluate and select BMP’s by end of year 1,
implement BMP’s by end of year 2. Evaluate Annually
for cost and effectiveness.
X X X X X Public Works Director
Stormwater Engineer
O&M for municipally owned or
maintained catch basins and
conveyance systems
Continue implementation of the O&M Program for the
MS4, including catch basins and conveyance systems.
Reassess program annually.
X X X X X Public Works Director
Stormwater Engineer
O&M for municipally-owned or
maintained structural stormwater
controls
Continue to implement and maintain an O&M Program
for municipally-owned or maintained structural
stormwater controls.
X X X X X Public Works Director
Stormwater Engineer
Pesticide, Herbicide and Fertilizer
Application Management
Ensure municipal employees and contractors are
properly trained and all permits, certifications, and
other measures for applicators are followed.
X X X X X Public Works Director
Stormwater Engineer
Staff Training Implement an employee training program for
employees involved in pollution prevention and good
housekeeping practices.
X X X X X Public Works Director
Stormwater Engineer
Vehicle Washing Implement measures to minimize or prevent
contamination of stormwater runoff from all areas used
for vehicle and equipment cleaning.
X X X X X Public Works Director
Stormwater Engineer

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 24

7.6.2 Affected Operations
The City of Thomasville operates a municipal building that serves as a City Hall, a police station, a Public Works vehicle
and equipment storage yard, 4 fire stations, and a maintenance facility for the Parks & Recreation Department. All
vehicles, equipment, and materials at the storage yard and Park maintenance facility are stored in covered buildings.
There are no floor drains in any of the buildings at these two facilities.
7.6.3 Training
Training materials have been developed on pollution prevention for public facilities, using similar materials as will be used
in the public outreach program. All employees will be educated on the need for controls to protect stormwater from
exposure to potential pollutants. This training will also serve as the training requirement for public employees as specified
in the outreach component of the Illicit Discharge section of this program.
All public employees involved in vehicle, open space, or building maintenance operations will be provided training in
BMPs, the processes and materials they are working with, safety hazards, practices for preventing discharges, and
procedures for responding quickly and properly to toxic and hazardous material incidents.
All public employees involved in stormwater drainage system maintenance will be specifically trained in the disposal of
floatables, grit, sediment, and other pollutants removed from the system. Additional training, or certification, will be
provided to employees that manage and apply chemicals for control of dust, pests, vermin, and weeds and/or to enhance
the growth or condition of public urban landscape and recreation facilities. Training will target the safe and effective
application, storage and disposal of chemicals used.
7.6.4 Maintenance and Inspections
A preventive maintenance program has been developed that includes routine inspections of catch basins and other
stormwater systems for the municipal building and vehicle storage yard. The objective of the inspections is to reduce
pollutant loading from municipal sites. Inspections include noting any problems or issues that may have an impact on
stormwater quality, and any corrective actions needed. Schedules, procedures, and a record-keeping system are used to
schedule and document inspections.
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 25

7.6.5 Vehicular Operations
The majority of vehicles, equipment, and associated material at both the Public Works and Parks & Rec. facilities are
stored under a shed or inside but not all vehicles. The Public Works vehicles (pickup and dump trucks) are currently
washed outside, with the untreated wash water discharging into a nearby drainage ditch. Washing of these vehicles at
another location has been investigated but is non-cost effective and pollution runoff is minimized by runoff not going
across impervious areas and not going directly into surface waters. Minor vehicle and equipment maintenance take place
at these facilities.
7.6.6 Waste Disposal
Garbage, recyclables, and heavy trash collection are handled by the Solid Waste Division.
7.6.7 Flood Management Projects
Future flood management projects will be reviewed from a water quality standpoint.
7.6.8 Decision Process
The most effective and practical BMPs for minimizing stormwater pollution were selected for this program.
7.6.9 Evaluation
The pollution prevention/good housekeeping for municipal operations program will be evaluated based on how each
individual BMP is meeting its measurable goal at the end of each reporting period. Changes will be considered for any
BMPs that are not meeting the measurable goals.
COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE
Page 26

7.7 TOTAL MAXIMUM DAILY LOADS (TMDL)
7.7.1 BMP Summary Table
BMP Measurable Goals YR
1
YR
2
YR
3
YR
4
YR
5 Responsible Position/Party
Establish if a TMDL exists on a
receiving water of the MS4
Verify TMDL’s annually. X X X X X Public Works Director
Stormwater Engineer
Identify, Describe, and Map
watershed, outfalls, and streams.
Identify watershed WLA for stormwater, describe
watershed, map watershed, identify location of major
outfalls in watershed, identify impaired streams in
watershed, and identify schedule to discover and
locate other possible contributing sources.
X Public Works Director
Stormwater Engineer
Existing Measures Create Water Quality Recovery Program. X Public Works Director
Stormwater Engineer
Monitoring Plan Create and submit to NC DWQ a monitoring program
for each pollutant of concern in the TMDL.
X Public Works Director
Stormwater Engineer
Additional Measures Additional measures that improve water quality may be
started at anytime.
X X X Public Works Director
Stormwater Engineer
Implementation Plan Determine final implementation schedule, including
when in the permit additional items will be
implemented.
X Public Works Director
Stormwater Engineer
Incremental Success Determine if and/or how incremental success will be
measured.
X Public Works Director
Stormwater Engineer
Annual Assessment Submit Annual Report on program to DWQ X X X X X Public Works Director
Stormwater Engineer

COMPREHENSIVE STORMWATER MANAGEMENT PROGRAM REPORT
CITY OF THOMASVILLE

Page 27
7.7.2 Determination of TMDL’s
A TMDL on a receiving water with a stormwater Waste Load Allocation (WLA)
will trigger the need for compliance with this section of the CSWMP. A TMDL with
no WLA will not require a Water Quality Recovery Plan, but rather the need to
evaluate existing strategies and if any can be tailored or expanded to improve the
water quality in the TMDL watershed.
7.7.3 Establishing a Water Quality Recovery Plan
Based on the above schedule the City of Thomasville would begin creating a
Water Quality Recovery Plan (WQRP) within 12 months of establishment of the
TMDL, would have evaluated existing measures within 24 months, developed a
monitoring plan within 36 months, and would be implementing or have planned
for implementation within 48 months. The WQRP would be submitted and
approved by NC DWQ and EPA.
7.7.4 Decision Process
TMDL planning and implementation will be done in an effort to improve water
quality and with the approval of NC DWQ staff.
7.7.5 Evaluation
Progress toward restoring water quality standards will be difficult to determine
and most evaluation tools will be based upon programs rather than through water
quality monitoring or water quality improvements. While the goal of a WQRP is to
improve water quality standards, the NPDES MS4 permit obligation is to reduce
non-point source pollutant loading to the maximum extent practicable (MEP). The
MS4 is not required to meet water quality standards. Evaluation of successful
techniques will be evaluated over time, probably multiple permit cycles.