NCS000513_Original SWMP_20220506

Phase II Comprehensive
Stormwater Management
Program Report
Town of Harrisburg
North Carolina
Pursuant to NCDENR-DWQ Form SWU-268-091009
Submitted June 2010
Prepared by: HDR Engineering, Inc. of the Carolinas

TABLE OF CONTENTS
SECTION PAGE
1.0 STORM SEWER SYSTEM INFORMATION.....................................................................I
1.1
Population Served..........................................................................................................1
1.2
Growth Rate...................................................................................................................1
1.3
Jurisdictional and MS4 Service Area..................................................................... 1
1.4
MS4 Conveyance System...................................................................................... 1
1.5
Land Use Composition Estimates.......................................................................... 1
1.6
Estimate Methodology........................................................................................... 2
1.7
TMDL Identification.............................................................................................. 2
2.0 RECEIVING STREAMS.........................................................................................................5
3.0 EXISTING WATER QUALITY PROGRAMS....................................................................6
3.1 Local Programs..............................................................................................................6
3.2 State Programs................................................................................................................6
4.0 PERMITTING INFORMATION...........................................................................................7
4.1 Responsible Parry Contact List......................................................................................7
4.2 Organizational Chart ...................................................................................................... 8
4.3 Signing Official..............................................................................................................8
4.4 Duly Authorized Representative...................................................................................9
5.0 CO -PERMITTING INFORMATION (NOT APPLICABLE).........................................10
6.0 RELIANCE ON OTHER GOVERNMENT ENTITY......................................................11
6.1 Name of Entity.............................................................................................................11
6.2 Measure Implemented..................................................................................................11
6.3 Contact Information.....................................................................................................11
6.4 Legal Agreements........................................................................................................11
7.0 STORMWATER MANAGEMENT PROGRAM PLAN.................................................12
7.1 Public Education and Outreach on Storm Water Impacts..........................................12
7.2 Public Involvement and Participation.........................................................................16
7.3 Illicit Discharge Detection and Elimination................................................................19
7.4 Construction Site Stormwater Runoff Control...........................................................23
7.5 Post -Construction Stormwater Management in New Development and
Redevelopment.............................................................................................................24
7.6 Pollution Prevention/Good Housekeeping for Municipal Operations .......................29
Town of Harrisburg i June 2010
Comprehensive Stormwater Management Program Report

LIST OF TABLES
TABLE PAGE
1-1
Land Use Composition................................................................................................... 2
1-2
303(d) Category 5 Listed Waters...................................................................................3
2-1
Receiving Streams of the Town's Service Area............................................................5
4-1
Contact Information for Responsible Parties.................................................................7
4-3
Contact Information for Signing Official......................................................................
8
6-1
Contact Information for Responsible Party.................................................................11
7-1
BMP Summary Table of Public Education and Outreach..........................................15
7-2
BMP Summary Table for Public Involvement and Participation..............................18
7-3
BMP Summary Table for Illicit Discharge Detection and Elimination Program ......
22
7-4
BMP Summary Table for Post -Construction Stormwater Management in New
Development and Redevelopment..............................................................................28
7-5
BMP Summary Table for Pollution Prevention and Good Housekeeping ................
31
LIST OF FIGURES
FIGURE PAGE
1-1 Harrisburg Limits and Impaired Streams...................................................................... 4
4-1 Organization Chart for the Stormwater Management Program ................................... 8
Town of Harrisburg ii June 2010
Comprehensive Stormwater Management Program Report

1.0 STORM SEWER SYSTEM INFORMATION
1.1 Population Served
For 2008, the United States Census estimated a permanent population of 5,819 in
the Town of Harrisburg (Town), North Carolina. The Town does not experience
significant seasonal changes in population.
1.2 Growth Rate
The annual growth rate for the period from the 2000 Census to 2008 was 3.3
percent annually. Annexations dating back to 2000 resulted in approximately 70
additional residents. The Town's population in 2000 was 4,493.
1.3 Jurisdictional and MS4 Service Area
The current jurisdictional and MS4 service area for the Town is 9.0 square miles.
The Town has 2.7 square miles of extra territorial jurisdiction (ETJ). Figure 1-1
on page 4 depicts the limits of the Town's municipal service area and extra
territorial jurisdictional area.
1.4 MS4 Conveyance System
The Town has not performed a full inventory or evaluation of its MS4. As a
requirement of its current NPDES Permit, the Town conducted an outfall
inventory in 2008. Survey crews assessed nearly 37.4 miles of streams in the
jurisdictional and ETJ areas. One hundred and thirty-one outfalls were identified
and mapped; of these outfalls 94 were pipes, 29 were open conveyances and 8
were other types of outfalls.
The system, typical of most cities, includes swales, culverts, pipes, outfalls, and
curb and gutter sections. The Town has conducted drainage studies in the past for
problematic areas. Maintenance and catch basin clearing and cleaning is
performed when a resulting drainage problem is notified to the Town staff.
1.5 Land Use Composition Estimates
The Land Use Composition for the Town is presented in the Table 1-1 on page 2.
Town of Harrisburg 1 June 2010
Comprehensive Stormwater Management Program Report

Table 1-1
Land Use Composition
Land Use
Acreage
Percent of Total
Residential
4,014
53.5
Commercial
195
2.6
Mixed Use
947
12.6
Industrial
1,050
13.9
Institutional
332
4.4
Open Space
296
3.9
Other
684
9.1
1.6 Estimate Methodology
The Land Use Composition for the Town was estimated using Geographic
Information System (GIS) software and land use data from the Town's Planning
Department. The land use data is not current but is future planning land use data,
including approved but undeveloped projects, and is similar to current conditions.
Totals of each group were calculated and divided by the total jurisdictional area to
obtain percentages.
1.7 Total Maximum Daily Load (TMDL) Identification
Six streams with TMDL designations are present that either border or pass
through the Town's jurisdiction. The impaired streams are summarized in the
following Table 1-2. TMDLs have not been developed for any stream at this time.
This data is current for the Draft 2010 303(d) list. Figure 1-1 depicts the impaired
reaches of impaired streams and their proximity to the Town's jurisdictional area.
Town of Harrisburg 2 June 2010
Comprehensive Stormwater Management Program Report

Table 1-2
303(d) Category 5 Listed Waters
Accounting
Listing
Unit
Stream Name
Parameter of Interest
Year
Number
13-17-5b
Mallard Creek
Copper
2008
13-17-5b
Mallard Creek
Turbidity
2008
13-17-6-(5.5)
Coddle Creek
Turbidity
2008
Ecological/biological Integrity
13-17-7
Back Creek
Benthos
2008
Ecological/biological Integrity
13-17-8
Reedy Creek
Benthos
2008
Ecological/biological Integrity
13-17-8-4
McKee Creek
Benthos
1998
13-17b
Rocky River
Copper
2008
13-17b
Rocky River
Turbidity
2008
Town of Harrisburg 3 June 2010
Comprehensive Stormwater Management Program Report

Figure 1-1
Harrisburg Limits
and
Impaired Streams
-__ County Boundary
Town Municipal Limit
Town ETJ Limit
Intermittent Streams
Perennial Streams
KWater Bodies
® 303(d) Impaired Streams
Back Creek, McKee Creek and Reedy Creek are
impaired and do not support their aquatic life use.
Mallard Creek and Rocky River are listed for
turbidity and copper standard violations.
Coddle Creek is listed for turbidity standard violation
This data is based on the Draft 2010 303(d) list.
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2.0 RECEIVING STREAMS
Table 2.1 below illustrates the receiving streams of the Town's service area.
Table 2-1
Receiving Streams of the Town's Service Area
Receiving Stream
Stream
Water Quality
Use Support
Quality Issues
Name
Segment
Classification
RatingWater
Rocky River
13-17
C
Impaired
Per the Draft 2010 303(d) List, listed for standard
violation of copper and turbidity.
Mallard Creek
13-17-5
C
Impaired
Per the Draft 2010 303(d) List, listed for standard
violation of copper and turbidity.
Coddle Creek
13-17-6-(5.5)
C
Impaired
Per the Draft 2010 303(d) List, listed for standard
violation of turbidity.
Back Creek
13-17-7
C
Fully Supported
Per the Draft 2010 303(d) List, listed for fair
bioclassification,
Fuda Creek
13-17-7-1
C
Fully Supported
None
McKee Creek
13-17-8-4
C
Impaired
Per the Draft 2010 303(d) List, listed for fair
bioclassification,
Reedy Creek
13-17-8
C
Impaired
Per the Draft 2010 303(d) List, listed for fair
bioclassification,
Town of Harrisburg 5 June 2010
Comprehensive Stormwater Management Program Report

3.0 EXISTING WATER QUALITY PROGRAMS
3.1 Local Programs
There are no existing water quality programs in the Town other than NPDES MS4
program.
3.2 State Programs
There are no State Programs being enlisted in the area at this time.
Town of Harrisburg 6 June 2010
Comprehensive Stormwater Management Program Report

4.0 PERMITTING INFORMATION
4.1 Responsible Party Contact List
Table 4-1
Contact Information for Responsible Parties
Phone Number
Contact Name
Fax Number
Control Measure
Position Title
Email Address
Public Education and
Derek Slocum
Phone: [phone]
Outreach
Public Involvement and
Fax: [phone]
Participation
Illicit Discharge Detection
and Elimination
Town Engineer
Post Construction Runoff
[e-mail]
Controls
Pollution Prevention/ Good
Housekeeping
Zahid Kahn
Phone: [phone]
Construction Site Runoff
Fax: [phone]
Controls
NCDENR, Land Quality
& Erosion Control
[e-mail]
Town of Harrisburg 7 June 2010
Comprehensive Stormwater Management Program Report

4.2 Organizational Chart
Figure 4-1
Organizational Chart for the Stormwater Management Program
Town of Harrisburg
Tim Hagler
mayor
Michele Reapsmith
Town Administrator
Todd Taylor
Public Works Director
Derek Slocum
Town Engineer
4.3 Signing Official
Town Council
Town Council has directed Michele Reapsmith, the Town Administrator as the
signing official for the National Pollution Discharge Elimination System
(NPDES) Stormwater permit application. Her contact information is outlined in
Table 4-3 below.
Table 4-3
Contact Information for Signing Official
Phone Number
Name
Address
Fax Number
Michele
4100 Main Street, Suite 101
[phone]
Reapsmith
PO Box 100
Harrisburg, NC 28075
(704 ) 455-1206
Town of Harrisburg 8 June 2010
Comprehensive Stormwater Management Program Report

4.4 Duly Authorized Representative (Not Applicable)
Town of Harrisburg 9 June 2010
Comprehensive Stormwater Management Program Report

5.0 CO -PERMITTING INFORMATION (NOT APPLICABLE)
Town of Harrisburg 10 June 2010
Comprehensive Stormwater Management Program Report

6.0 RELIANCE ON OTHER GOVERNMENT ENTITY
6.1 Name of Entity
NCDENR, Division of Land Quality, Mooresville Regional Office.
6.2 Measure Implemented
Construction Site Runoff Control.
6.3 Contact Information
Table 6-1
Contact Information for Responsible Party
Name
Address
Phone Number
610 East Center Ave.
Zahid Kahn
[phone]
Mooresville NC 28115
6.4 Legal Agreements
There are no legal agreements in place for this service.
Town of Harrisburg 1 1 June 2010
Comprehensive Stormwater Management Program Report

7.0 STORMWATER MANAGEMENT PROGRAM PLAN
7.1 Public Education and Outreach on Storm Water Impacts
7.1.1 BMP Summary Table
Table 7-1 on page 15 lists the Best Management Practice (BMP) Summary
Table for this minimum measure.
7.1.2 Target Audience
The target audience for the Town's public education and outreach program
is a diverse group of citizens who share the range of impact on
stormwater. Public education materials and activities will be directed
towards industry and commercial business owners. The purpose in
reaching this sector will be to reaffirm their knowledge in proper waste
disposal compliance and facility/site management and operation. This is a
group where substantial awareness can lead to major improvements in the
environment. The development community will also be a key target
audience. The Town is encountering aggressive development from all
directions, making educating this audience on better site design and post
construction control beneficial to setting new standards and models for the
future. Another target audience includes homeowners, small business
operators, and the general public. Education efforts at this level will focus
on awareness of stormwater management, proper disposal of common
pollutants, and good housekeeping and pollution prevention on one's
property. This sector must realize that their contributions may be minimal
but that their collective, voluntary efforts produce maximum results.
Education efforts must also be focused towards youth to develop more
environmentally aware and compliant citizens from the start.
7.1.3 Target Pollutant Sources
Several pollutant sources have been identified for the concentration of
education efforts. These pollutant sources are categorized as household
wastes (oil, detergents, paints, and solvents), commercial waste, land
application pollutants (fertilizers, pesticides, and herbicides), and
Town of Harrisburg 12 June 2010
Comprehensive Stormwater Management Program Report

organic/land derived pollutants (leaves, grass, sediment, and fecal
coliform). These sources have been identified for their frequent use or
appearance in the lives of the identified target audience. These sources are
also highly controllable with the education of citizens on proper waste
disposal procedures, knowledge on the use and function of a storm sewer
system, and the recommendation of non -threatening products and
procedures like biodegradable products or composting. Additionally,
sediment will be a primary pollutant of concern as the Town is in close
proximity to a 303(d) listed stream impaired by turbidity and copper. A
better emphasis on educating developers on proper erosion and soil control
measures will be instrumental in managing further degradation of the area
streams.
7.1.4 Outreach Program
The community will be informed about stormwater pollution in a variety
of ways. The outreach program will use storm water pamphlets
distributed at Town public locations and educational booths to educate
about pollution prevention, proper household waste disposal, and program
administrative issues. Informational workshops will be developed and
hosted by the Town for local developers and engineers to assist them in
understanding the program requirements of the storm water ordinance.
The Town's website will be enhanced to contain information on
stormwater and BMPs for the general public. The Town will identify an
opportunity to promote the stormwater program and its related issues
through public appearances at well attended community events.
7.1.5 Evaluation
The public education and outreach program will have attainable and
measurable goals. The workshops for the development community and
students have measurable goals computed in number of events held or
individuals participating. The stormwater section of the Town's website
will frequently provide a variety of printable BMP guidance documents to
the community available for download. Periodic surveying of the citizens
may help the stormwater staff identify the most effective outreach
mechanisms and their concentrations. This will allow the stormwater staff
Town of Harrisburg 13 June 2010
Comprehensive Stormwater Management Program Report

to streamline this aspect of the Phase II regulations and locate areas of the
Town where more attention can be focused.
Town of Harrisburg 14 June 2010
Comprehensive Stormwater Management Program Report

Table 7-1
BMP Summary Table of Public Education and Outreach
No.
BMP
Measurable Goal
Year
Year
Year
Year
Year
Responsible Party/Person
1
2
3
4
5
1
Maintain stormwater section
Refresh content on a quarterly basis
X
X
X
X
X
Stormwater Administrator
on the Town's website.
Distribute stormwater
pamphlets to all Town public
Provide pamphlets for distribution periodically
2
locations. Educational topics
throughout the year.
X
X
X
X
X
Stormwater Administrator
concern storm water pollution
prevention.
Host a workshop for
Host biennial workshops and distribute material
3
developers to educate on
for developers to take home.
X
X
Stormwater Administrator
storm water ordinance.
Develop school student's
Coordinate with other Phase Il communities and
4
curriculum concerning
related County personnel to annually present this
X
X
X
Stormwater Administrator
stormwater or greater
curriculum to a specific grade level throughout
environmental awareness.
the County.
5
Promote stormwater education
Set up a booth or distribute educational materials
X
X
X
Stormwater Administrator
and the ro ram's vision.
at a well attended event annually.
X — denotes items to be completed without other measure.
Town of Harrisburg 15 June 2010
Comprehensive Stormwater Management Program Report

7.2 Public Involvement and Participation
7.2.1 BMP Summary Table
Table 7-2 on page 18 lists the BMP Summary Table for this stormwater
program measure.
7.2.2 Involvement Program
The Town has been a member of the Charlotte Regional Stormwater
Partnership administered by the Centralina Coucil of Governments
(COG). Through this partnership the Town has received and benefited
from the following:
• The Town has received and utilized grant money from the Clean
Water Management Trust Fund (CWMTF).
• The Town's stormwater administrator has been trained and
educated
• The Town's stormwater ordinance and policy have been displayed
on local television and radio stations and billboards along interstate
highways in the Charlotte regional area.
• Harrisburg Boy Scout Troops and Eagle Scout candidates have
worked with the stormwater program in adopt -a -stream clean-ups
and storm drain inlet label marking efforts. All supplies for these
efforts were funded by the CWMTF and administered by the COG
• The Town has recently applied for an individual CWMTF grant for
a rain garden on Town owned/fire department property. The COG
wrote and submitted the entire grant application for the Town.
7.2.3 Participation Program
The Town has a two -facet approach to fulfilling this minimum measure.
One facet will include the use of concerned citizens group. The Town will
utilize appropriate measures to ensure that the composition of the forum
will meet the needed diversity to address stormwater issues across the
spectrum of impact (e.g., industrial, commercial, institutional,
development, resident, environmental, etc.). This concerned citizens
group meets on an, as needed basis. Since the stormwater program and
ordinance have been established this group has and will remain involved
Town of Harrisburg 16 June 2010
Comprehensive Stormwater Management Program Report

for purposes of public involvement and public education of the stormwater
program.
The second facet of this approach on public involvement and participation
will be tailored to creating opportunities for the public to execute their
stormwater program. A voluntary activity, such as stream clean-up or
storm drain stenciling project, provides the public an opportunity to take
ownership in the restoration and protection of the region's waterways.
These activities provide the prospect for Town staff to meet and educate
the public in a face-to-face setting.
7.2.4 Decision Process
The Town is in a challenging position as it is one of the smaller Phase II
communities but shares similar issues and problems with its larger Phases
I and II neighbors. Therefore, the Town will seek out many resources to
comply with the regulations. These resources may include current staff,
citizens, support agencies, regional storm water partnerships administered
by the Centralina Council of Governments, and other Phase II
communities. Given these circumstances, the Town will attempt to use
existing boards or committees, where possible, to address stormwater
concerns in a public manner. Public comment and review procedures will
ensure where significant stormwater policy is being drafted.
7.2.5 Evaluation
These activities will be evaluated on their completion and attendance. As
mentioned before, a concerned citizens group will be used to help develop
policies and stormwater services. This group will meet on an as needed
basis. Public hearings will be posted in the Town's typical manner.
Public involvement activities will be voluntary; however, the level of
attendance will factor in the continuation or modification of a public
activity to ensure this minimum measure is being met.
Town of Harrisburg 17 June 2010
Comprehensive Stormwater Management Program Report

Table 7-2
BMP Summary Table for Public Involvement and Participation
Year
Year
Year
Year
No.
BMP
Measurable Goal
Year 5
Responsible Party/Person
1
2
3
4
Utilize a concerned citizen group
The concerned citizens group meets on an as
1
for the purpose of public
X
X
X
X
X
Stormwater Administrator
needed basis.
interaction and input
Provide a public comment period
for the development or
Hold review periods and advertise under
2
X
X
X
X
X
Stormwater Administrator
amendment of any stormwater
current policy on an as needed basis.
policy
Organize or sponsor a public
Stormwater
3
activity dedicated to addressing
Conduct one activity per year.
X
X
X
X
X
AdministratorNolunteer
stormwater concerns.
Organizations
X — denotes items to be completed without other measure.
Town of Harrisburg 18 June 2010
Comprehensive Stormwater Management Program Report

7.3 Illicit Discharge Detection and Elimination
7.3.1 BMP Summary Table
Table 7-3 on page 22 lists the BMP Summary Table for this stormwater
program measure.
7.3.2 Storm Sewer System Map
The Town maintains a geodatabase of MS4 outfalls where they discharge
into receiving waters. The geodatabase was developed from a series of
stream walks on the 37.4 miles of streams in the jurisdictional and ETJ
areas. Outfalls were geospatially located and some base attributes were
collected. To keep the geodatabase current, several options may be
employed. The Town includes and requires for all new development and
redevelopment that results in a new or modified MS4, to submit as -built
construction drawings or a electronic based survey. Another option may
lead to contracting a survey service to periodically update new or modified
systems.
7.3.3 Regulatory Mechanism
The Town has an illicit discharge prohibition as part of the Town's
Stormwater Quality Ordinance. The prohibition further defines and
prohibits illicit connections and non-stormwater discharges from being
released into the Town's MS4 or receiving waters. Additional measures
are included to allow for inspection, monitoring, elimination, and
emergency remediation of these discharges, if necessary.
7.3.4 Enforcement
The enforcement plan includes enforcement of the Town's Ordinance,
serving notices, warnings, and civil penalties as outlined in the
prohibition. Citizens may provide enforcement through a hotline for
reporting illegal discharging or accidental spilling.
Town of Harrisburg 19 June 2010
Comprehensive Stormwater Management Program Report

7.3.5 Detection and Elimination
The Town will attempt to locate facilities, homes, or properties that are
unlawfully discharging into the Town's MS4. The Ordinance grants the
Town the right to enter a private property and further investigate, monitor,
test, or sample discharges from the property, in order to confirm a
violation. In the event that illegal discharge is detected, the owner will be
notified of the detected illegal discharge with remedial action to be taken
and a time frame to complete.
The Town considers the Illicit Discharge Detection and Elimination
Program (IDDE) to be a significant control in further degradation of
receiving waters. The outfall and natural resource identification
component, response hotline for illegal discharging, cross training of
Town staff, and dry weather screening will assist in identifying source
problems as well.
7.3.6 Non-Stormwater Discharges
The Ordinance lists several non-stormwater discharges that, when
properly managed, will ensure no potential pollutants are present, and can
be discharged into the MS4 and waters of the Town. They include potable
water line flushing, uncontaminated pumped groundwater and other
discharges from potable water sources, landscape irrigation and lawn
watering, diverted stream flows, rising groundwater, groundwater
infiltration to the storm drain system, uncontaminated foundation and
footing drains, uncontaminated water from crawl space pumps, air
conditioning condensation, springs, occasional individual residential car
washing, flows from riparian habitats and wetlands, dechlorinated
swimming pool discharges, street wash waters, and flows from fire
fighting.
7.3.7 Other Incidental Stormwater Discharges
The Town has not made an assessment of discharges that may be allowed
in the Town's MS4 and characterized as incidental stormwater. If
incidental discharges are identified, the Town's Ordinance will include
Town of Harrisburg 20 June 2010
Comprehensive Stormwater Management Program Report

these incidental stormwater discharges and will be reviewed by the public
and the Division of Water Quality (DWQ) before adoption.
7.3.8 Outreach
Several public education and good housekeeping elements will be
dedicated to educating citizens and employees about the environmental
impacts of illicit discharges. Storm water educational pamphlets at public
locations, Town website, and education at public events will provide an
effective and broad line of communication to citizens and business
operators, encouraging them to address illicit discharges before they
become a liability. The Town's Stormwater Manual includes guidance for
the public on preventing and reporting accidental discharges to the MS4.
In addition, an in-house training tool has been developed for Town staff to
receive and direct reports on spills and discharges to the MS4. The Town
will continue to train staff with this tool.
7.3.9 Decision Process
The Town's main objectives of an IDDE program are to update outfall
mapping, continue prohibitions for discharge of pollutants, and maintain a
program to enforce the prohibitions. These three components grant the
Town an effective and legal means of removing illicit connections and
preventing illegal discharges in light of voluntary public participation.
7.3.10 Evaluation
The Town considers the IDDE program to be a component on which
success can be calculated and promoted on behalf of the stormwater
program. The Town is exploring the collection of baseline data for
comparison with IDDE efforts in respective areas. Success will be
measured in numbers of illicit connections removed, increased use of
hazardous waste facilities, and improvement on baseline numbers over the
permit period.
Town of Harrisburg 21 June 2010
Comprehensive Stormwater Management Program Report

Table 7-3
BMP Summary Table for Illicit Discharge Detection and Elimination Program
No.
BMP
Measurable Goal
Year 1
Year 2
Year 3
Year 4
Year 5
Responsible Party/Person
Maintain legal authorities to
prohibit, investigate, and
remediate (under emergency
Maintain and enforce an ordinance or similar
1
X
X
X
X
X
Stormwater Administrator
order), non-stormwater discharges
legal document to address this BMP.
and illicit connections to the
Town's MS4.
Incorporate new outfalls into the geodatabase
Update the Town's MS4 outfalls
through collection of as -built surverys or
2
to the State's waters and upstream
X
X
X
X
X
Stormwater Administrator
electronic data submission of new or updated
watershed boundaries.
MS4.
Characterization of outfalls and any dry weather
Screening for dry weather flows
3
flows will be assessed during the identification
X
X
X
Stormwater Administrator
and non-Stormwater discharges.
and location process.
Ensure public education
Educate the public on these matters through
curriculum addresses non-
storm water pamphlet public distribution,
4
X
X
X
X
X
Stormwater Administrator
stormwater discharges and illicit
educational booth at public events and, Town
connections.
website. .
Training will be performed and coordinated
Conduct employee training about
with the employee training associated with the
detecting and reporting non -
5
Good Housekeeping/ Municipal Pollution
X
X
Stormwater Administrator
Stormwater discharges and illicit
Prevention measures. Refresher training will be
connections.
performed as needed.
Establish a reporting contact
Stormwater
Continue fielding reports at Town Hall but
6
mechanism for illegal discharge of
X
X
X
X
X
Administrator/Administrative
better publicize the contact mechanism.
non-stormwater to the MS4.
Staff
X — denotes items to be completed without other measure
Town of Harrisburg 22 June 2010
Comprehensive Stormwater Management Program Report

7.4 Construction Site Stormwater Runoff Control
Construction Site Stormwater Runoff Control is being performed by the
Department of Environment and Natural Resources out of their Mooresville,
North Carolina regional office.
Town of Harrisburg 23 June 2010
Comprehensive Stormwater Management Program Report

7.5 Post -Construction Stormwater Management in New Development and
Redevelopment
7.5.1 BMP Summary Table
Table 7-4 on page 28 lists the BMP Summary Table for this stormwater
program measure.
7.5.2 Non -Structural BMPs
NPDES Phase II stormwater control regulations are recorded in the
Town's Stormwater Quality Ordinance. The policy states that all:
• Development that cumulatively disturbs more than 10,000 square
feet and or is part of a larger common plan of development or sale
that cumulatively disturbs more than 10,000 square feet must
comply with the provisions of this Ordinance
• Redevelopment that cumulatively disturbs more than one acre or is
part of a larger common plan of development or sale that
cumulatively disturbs more than one acre must comply with the
provisions of this Ordinance
The main stormwater controls recorded in the Ordinance include:
• The post development runoff rate for the 1- and 10-year design
storm conditions must be detained to pre -development levels,
unless a maximum discharge rate was adopted for the applicable
drainage basin.
• Post development BMPs shall control and treat at a minimum, the
stormwater runoff volume from the first one (1) inch of rain.
Runoff volume drawdown time shall be a minimum of 48 hours,
but not more than 120 hours.
• All structural stormwater treatment systems used to meet the
requirements of the program shall be designed to have a minimum
of 85% average annual removal for Total Suspended Solids;
Town of Harrisburg 24 June 2010
Comprehensive Stormwater Management Program Report

The Town has in place and will maintain their extensive development
review process that includes the following elements:
• Concept Plan Consultation
• Stormwater Plan Submittal and Review
• Signed BMP Operations and Maintenance Agreement
• As -Built Inspection and Survey of BMPs and Stormwater Systems
• BMP Inspection Tracking
Developments legally required by the Ordinance must comply with this
process and is elements. The process is effective in identifying
problematic issues within proposed development ahead of design.
The Town maintains and updates periodically a Stormwater Management
Manual that provides additional guidance on purpose of the program, plan
development and submittal process, design standards, BMP and
stormwater system maintenance, and illicit discharge detection and
elimination. Included in the Manual are BMP maintenance schedules and
checklists, stormwater plan submittal form, plan review checklists,
inspection checklists, BMP operations and maintenance agreement, and
BMP inspection forms.
The Town maintains and enforces the requirement for riparian buffers
along perennial and intermittent streams where qualifying development is
proposed. The buffers for perennial streams are 50 feet plus an additional
amount based on slopes. The same buffer measures exist for intermittent
streams except the base width is 35 feet. These buffer widths are
undisturbed areas measured from the top of banks for both sides.
Several developers have proposed green infrastructure and low impact
development types of components to their project. While the Town does
not have an overarching "green" or sustainable directive, the Stormwater
Department is open to these initiatives on a project by project basis. There
is no formal process for requiring this type of development but the
development plan review process provides early interaction and feedback
for projects of this nature. Where alternative BMPs, site designs or green
infrastructure are identified early, the Town evaluates these opportunities
with current zoning, land use and utility requirements for exception. The
Town will continue this informal process until it is deemed no longer
Town of Harrisburg 25 June 2010
Comprehensive Stormwater Management Program Report

appropriate. In addition, the Town will continually investigate its own
policies and practices for opportunities for green infrastructure where
appropriate and all other municipal objectives are met.
The Cabarrus Health Alliance (CHA) is the local authority in permitting
on -site wastewater systems. The Town will coordinate with CHA to
ensure proper oversight is being performed on on -site wastewater systems
in the Town's jurisdiction. The Town will keep a record of all new
systems installed following permit issuance.
7.5.3 Structural BMPs
The Town references the State's Stormwater BMPs as a guidance
document for developers to select and design BMPs. The Town may
document this reference in the stormwater control ordinance (Ordinance)
but also reserves the right to reject any of the listed BMPs should they be
considered detrimental to long term water quality protection. In addition,
the Town may approve additional BMPs not referenced in the Manual
where they may provide treatment of stormwater pollution or promote a
more sustainable stormwater management process.
7.5.4 Regulatory Mechanism
The Town maintains an Ordinance that governs regulations for new and
redevelopment within the Town's jurisdictional area. The Ordinance
provides policies for quality control of storm water, protection of areas
surrounding receiving waters, submittal process, permit requirements,
BMP use and operation, and related Town services regarding storm water.
This Ordinance includes illicit discharge prohibition.
7.5.5 Operation and Maintenance
To ensure long term operation of BMPs, the Town has developed a BMP
inspection program. The program requires BMP owners to sign BMP
Operation and Maintenance agreements prior to approval of stormwater
plans and permitting. Annual inspections by a North Carolina registered
professional engineer are a requirement. In addition, the Town has a BMP
tracking process that provides real-time reporting on upcoming and
Town of Harrisburg 26 June 2010
Comprehensive Stormwater Management Program Report

delinquent inspections. The Town's Manual also provides inspection and
maintenance forms for use by BMP owners.
7.5.6 Decision Process
The Town maintains a compliant Phase II program addressed at meeting
the minimum measures with practices and procedures developed from
historical knowledge and local application. The Town will continue to
maintain the Post Construction program at a compliant level and identify
opportunities to expand the program and address water quality protection
where possible. The next five years will represent a period of significant
growth for stormwater management both possibly in funding and policy
on management of impacts and level of service. Water quality protection
will play a key role in this growth. The Town currently identifies strategic
opportunities for water quality management and will continue to do so till
more comprehensive efforts can be financially established at sustainable
levels.
This element includes much communication and interaction with the
public and development community to drive programming that meets local
expectations and addresses environmental needs; therefore, review of the
processes and inputs from the public are measurable goals to streamlining
the tasks on both ends.
7.5.7 Evaluation
Measurable goals for the post -construction runoff control program will be
the continual implementation of each BMP for permit period. Other
evaluation of the program will be provided by the public who may voice
improvements on the processes.
Town of Harrisburg 27 June 2010
Comprehensive Stormwater Management Program Report

Table 7-4
BMP Summary Table for Post -Construction Stormwater Management in New Development and Redevelopment
No.
BMP
Measurable Goal
Year 1
Year 2
Year 3
Year 4
Year 5
Responsible Party/Person
Maintain legal authorities to
Enforce the ordinance to address post -
administer post- construction
construction runoff control from new and
1
runoff control from new and
X
X
X
X
X
Stormwater Administrator
redeveloped sites and the protection of riparian
redevelopment sites and protect
buffers.
riparian buffers.
Include provisions in the aforementioned
ordinance that requires an agreement of
Maintain a structural BMP
maintenance and inspection of BMPs
2
X
X
X
X
X
Stormwater Administrator
inspection program.
conditional on approval of a stormwater permit.
Inspections should be performed and
documented annually.
Maintain site plan review process
Continue stormwater site plan review for water
to ensure that developmental
3
quality control, inclusion of BMPs, removal of
X
X
X
X
X
Stormwater Administrator
controls are being used to meet the
TSS, and protection of riparian buffers.
ordinance regulations.
Provide oversight to the CHA for
Coordinate with the CHA to retain copies of
on -site wastewater system for the
4
documentation for on -site wastewater systems in
X
X
X
X
X
Stormwater Administrator
control of fecal coliform
the jurisdictional area.
contamination.
Be strategic in identifying
opportunities, internally and
Document proceedings related to decisions
externally, for additional
resulting in and abstaining from additional
5
X
X
X
X
X
Stormwater Administrator
environmental measures, such as
environmental measures. Evaluate municipal
green infrastructure, natural
climate for facilitating more change.
resource protection, etc
X — denotes items to be completed without other
measure
Town of Harrisburg 28 June 2010
Comprehensive Stormwater Management Program Report

7.6 Pollution Prevention/Good Housekeeping for Municipal Operations
7.6.1 BMP Summary Table
Table 7-5 on page 31 lists the BMP Summary Table for this stormwater
program measure.
7.6.2 Affected Operations
Potentially impacted municipal operations by this program include the
following divisions of the Public Works Department: Parks and
Recreation, Maintenance Shop, Pick -Up, Water/Sewer, Expansion
Construction and New Development. In addition the Town owns and
operates two fire station locations. The Town does not own any property
subject to Industrial Phase II regulations.
7.6.3 Training
The Stormwater staff has developed an in-house training tool on pollution
prevention and better operations management for the Town's employees.
This training is provided to new staff upon employment and existing staff
on a biennial basis or more frequently as needed.
7.6.4 Maintenance and Inspections
The Stormwater staff has developed brief Stormwater Pollution Prevention
Plans (SWPPP) for municipal facilities and operations. The SWPPPs
identify opportunities to reduce waste and prevent the possibility for
continued occurrence of pollution. The SWPPPs will be updated to
address changes at facilities and municipal operations.
7.6.5 Vehicular Operations
The Town operates vehicle related operation centers and parking lots.
Where the Town operates such facilities, an evaluation will be performed
to identify services or activities that may generate waste or the potential
for stormwater contamination. These services and activities will be
Town of Harrisburg 29 June 2010
Comprehensive Stormwater Management Program Report

reviewed for competency in addressing these concerns. If a deficiency in
performance or structural control exists, the procedure or facility will be
retrofitted or modified. A pollution prevention plan will be developed and
reviewed periodically to ensure its relevance to current activities and
controls.
7.6.6 Waste Disposal
The County operates several waste disposal facilities such as landfills, a
household hazardous waste facility, recycling convenience centers, and
used battery drops. To ensure proper disposal of certain wastes, the Town
will train its staff in the location of these facilities and their waste
acceptance practices. It also would be beneficial to provide signage near
the temporary waste collection devices regarding the location and
acceptance practices for those who can take advantage of these facilities.
7.6.9 Other Evaluations
There are no other aspects being evaluated at this time.
7.6.10 Evaluation
The Town will perform a self evaluation to ensure it is doing its part to
reduce stormwater pollution. Objective goals for this evaluation will
include obtaining high levels of participation in employee training and
general employee environmental awareness. However, the most
evaluative measure will be more aesthetic looking and managed facilities
and surrounding grounds.
Town of Harrisburg 30 June 2010
Comprehensive Stormwater Management Program Report

Table 7-5
BMP Summary Table for Pollution Prevention and Good Housekeeping
No.
BMP
Measurable Goal
Year 1
Year 2
Year 3
Year 4
Year 5
Responsible Party/Person
Inventory of Town Hall, the Town park, and
Continued use stormwater
maintenance shop, and fire department for
pollution prevention plans for
1
pollution prevention plans and corrective
X
X
X
Stormwater Administrator
proper procedures and corrections
measures. Plans will be updated on a biennial
of deficient practices.
basis or as needed.
Initial training will be performed and
Conduct employee training on the
coordinated with the employee training
details of pollution prevention
2
associated with the Illicit Discharge and
X
X
X
Stormwater Administrator
plans and recognizing deficiencies
Detection measures. Refresher training will be
for future amendment.
performed as needed.
X — denotes items to be completed without other
measure
Town of Harrisburg 31 June 2010
Comprehensive Stormwater Management Program Report