NCS000587_APPLICATION_20161101

STORMWATER DIVISION CODING SHEET
MS4 PERMITS
PERMIT NO.
CS o 0
DOC TYPE
El FINAL PERMIT
❑ /jNNUAI REPORT
��APPLIGATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ (-0 L (U
YYYYMMDD
i

•
•
State of North Carolina OFFIC USE ONLY
Department of Environment & Natural Resources Date Rec'd
Division of Water Quality Fee Paid
Permit Number nps MUTIT97
NPDES STORMWATER PERMIT APPLICATION FORM
This application form is for use by public bodies seeking NPDES stormwater permit coverage for Regulated Public
Entities (RPE) pursuant to Title 15A North Carolina Administrative Code 2H .0126. A complete application
package includes this form and three copies of the narrative documentation required in Section X of this form.
This application form, completed in accordance with Instructions for completing NPDES Small MS4 Stormwater
Permit Application (SWU-270) and the accompanying narrative documentation, completed in accordance with
Instructions for Preparing the Comprehensive Stormwater Management Program Report (SWU 268) are both
required for the application package to be considered a complete application submittal. Incomplete application
submittals may be returned to the applicant.
I. APPLICANT STATUS INFORMATION
a.
Name of Public Entity
City of Statesville
Seeking Permit Coverage
b.
Ownership Status (federal,
Local Government
state or local
c.
Type of Public Entity (city,
City Government
town, county, prison, school,
etc.
d.
Federal Standard Industrial
SIC 91 - 97
Classification Code
e.
County(s)
Iredell
f.
Jurisdictional Area (square
24.13 sq mi (city limits) 14.21 sq mi (ETJ)
miles
g.
Population
Permanent
24,532 (2010 census)
Seasonal (if available)
h.
Ten-year Growth Rate
5.2%
i.
Located on Indian Lands?
❑ Yes ®No
II. RPE / MS4 SYSTEM INFORMATION
a.
Storm Sewer Service Area
s uare miles
38.34
b.
River Basin(s)
Yadkin — Pee Dee
c.
Number of Primary Receiving
Streams
8
d.
Estimated percentage of jurisdictional
area containing the following four land use activities:
•
Residential
50916'
•
Commercial
23%
•
Industrial
151
•
Open Space
12%
Total =
100%
e.
Are there significant water
quality issues listed in the
attached application report?
❑ Yes ® No
SWU-264-103102
Page 1

NPDES RPE Stormwater Permit Application
•
III. EXISTING LOCAL WATER QUALITY PROGRAMS
a. Local Nutrient Sensitive Waters Strategy
❑ Yes ® No
b. Local Water Supply Watershed Program
❑ Yes ® No
c. Delegated Erosion and Sediment Control Program
❑ Yes ® No
d. CAMA Land Use Plan
❑ Yes ® No
IV. CO -PERMIT APPLICATION STATUS INFORMATION
(Complete this section only if co -permitting)
a. Do you intend to co -permit with
❑Yes ®No
a permitted Phase I entity?
b. If so, provide the name and permit number of that entity:
• Name of Phase I MS4
• NPDES Permit Number
c. Do you intend to co -permit
❑ Yes ® No
with another Phase II enti ?
d. If so, provide the name(s) of
the entity:
e. Have legal agreements been
finalized between the co-
❑ Yes ❑ No
erm ittees?
V. RELIANCE ON ANOTHER ENTITY TO SATISFY ONE OR MORE OF YOUR PERMIT OBLIGATIONS
• (If more than one, attach additional sheets)
0
a. Do you intend that another
entity perform one or more of
our permit obligations?
® Yes ❑ No
b. If yes, identify each entity and the element they will be implementing
• Name of Entity
Iredell County
• Element they will implement
Construction Site Runoff Controls
• Contact Person
Ron Smith, County Manager
• Contact Address
200 S Center Street, Statesville, NC 28677
• Contact Telephone Number
704 878-3050
c. Are legal agreements in place
to establish responsibilities?
® Yes ❑ No
VI. DELEGATION Of AUTHORITY (OPTIONAL)
The signing official may delegate permit implementation authority to an appropriate staff member. This
delegation must name a specific person and position and include documentation of the delegation action
through board action.
a. Name of person to which permit authority
n/a
has been delegated
b. Title/position of person above
c. Documentation of board action delegating permit authority to this person/position must be
provided in the attached application report.
SWU-264-103102
Page 2

NPDES RPE Stormwater Permit Application
0 VII. SIGNING OFFICIAL'S STATEMENT
•
•
Please see the application instructions to determine who has signatory authority for this permit
application. If authority for the NPDES stormwater permit has been appropriately delegated through
board action and documented in this permit application, the person/position listed in Section VI above
may sign the official statement below.
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the Information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility off fines and imprisonment for knowing violations
Signature
{�1
Name
L.ar Pressley, PE
Title
City Manager
Street Address
227 S Center Street
PO Box
1111
City
Statesville
State
NC
Zip
28677
Telephone
[phone]
Fax
E-Mail
[e-mail]
VIII. MS4 CONTACT INFDRMATION
Provide the following information for the person/position that will be responsible for day to day
implementation and oversight of the stormwater program.
a.
Name of Contact
Person
Scott Harrell, PE
b.
Title
Public Works Director / City Engineer
c.
Street Address
301 S Center Street
d.
PO Box
1111
e.
City
Statesville
f.
State
NC
g.
Zip
28677
h.
Telephone Number
704 878-3S51
i.
Fax Number
j.
E-Mail Address
[e-mail]
SWU-264-103102
Page 3

NPDES RPE Stormwater Permit Application
•
•
IX. PERMITS AND CONSTRUCTION APPROVALS
List permits or construction approvals received or applied for under the following programs. Include contact
name if different than the person listed in Item VIII. If further space needed, attach additional sheets.
a. RCRA Hazardous Waste
Management Program
b. UIC program under SDWA
c. NPDES Wastewater Discharge
NC 0020591 & NC0031836,
Permit Number
Joe Hudson, Water Resources Dir
d. Prevention of Significant
Deterioration (PSD) Program
e. Non Attainment Program
f. National Emission Standards for
Hazardous Pollutants (NESHAPS)
reconstruction approval
g. Ocean dumping permits under the
Marine Protection Research and
Sanctuaries Act
h. Dredge or fill permits under
section 404 of CWA
X. NARRATIVE APPLICATION SUPPLEMENT: STORMWATER MANAGEMENT PROGRAM REPORT
Attach three copies of a comprehensive report detailing the proposed stormwater management program for
the five-year permit term. The report shall be formatted in accordance with the Table of Contents shown
below. The required narrative information for each section is provided in the Instructions for Preparing the
Comprehensive Stormwater Management Program Report (SWU-268). The report must be assembled in the
following order, bound with tabs identifying each section by name, and include a Table of Contents with
page numbers for each entry.
TABLE OF CONTENTS
STORM SEWER SYSTEM INFORMATION
1.1. Population Served
1.2. Growth Rate
1.3. Jurisdictional and MS4 Service Areas
1.4. MS4 Conveyance System
1.5. Land Use Composition Estimates
1.6. Estimate Methodology
1.7. TMDL Identification
2. RECEIVING STREAMS
• 3. EXISTING WATER QUALTTY PROGRAMS
3.1. Local Programs
3.2. State programs
Page 4
35 7 S 3 M
0,a,���1�
swu-264-103102

NPDES RPE Stormwater Permit Application
•
4. PERMITTING INFORMATION
4.1. Responsible Party Contact List
4.2. Organizational Chart
4.3. Signing Official
4.4. Duly Authorized Representative
5. Co -Permitting Information (if applicable)
5.1. Co-Permittees
5.2. Legal Agreements
5.3. Responsible Parties
6. Reliance on Other Government Entity
6.1. Name of Entity
6.2. Measure Implemented
6.3. Contact Information
6.4. Legal Agreements
7. STORMWATER MANAGEMENT PROGRAM
7.1. Public Education and Outreach on Storm Water Impacts
7.2. Public Involvement and Participation
7.3. Illicit Discharge Detection and Elimination
7.4. Construction Site Stormwater Runoff Control
7.5. Post -Construction Storm Water Management in New Development and Redevelopment
7.6. Pollution Prevention/Good Housekeeping for Municipal Operations
Page 5
SWU-264-103102

• Stormwater Management Program Report
The City of Statesville (City) is located in Iredell County, in North Carolina's Piedmont
region. Statesville is located in the Yadkin River Basin.
1.0. Storm Sewer System Information
1.1. According to the U.S. Census Bureau's year 2010 census, the total permanent population
within the city limits of the City of Statesville and served by the municipal separate storm sewer
system (MS4) was 24,532. This compares with the 2000 census total population of 23,320.
1.2. The population growth rate for the ten-year period from 2000 to 2010 was 5.2%, for an
annualized percent change rate of 0.52%.
1.3. The total area included within the city limits, the MS4 service area, of the City is
24.13 square miles. The jurisdictional area included within the separate extra territorial
jurisdiction (ET7) is 14.21 square miles. Therefore, the total jurisdictional area is 38.34
square miles.
1.4. The municipal separate storm sewer system (MS4) starts with the curb and gutters or
side ditches or swales along the municipal streets. Stormwater from the streets, and sheet
flow or piped flow from the properties along the streets are conveyed by these gutters and
ditches and is transported to catch basins, pipe systems, channels and streams that carry it
. away from the streets and the municipal rights -of -way. The stormwater may be carried
across private property by sheet flow, piped flow, or in natural or man-made channels.
Either way, it is eventually discharged into streams throughout the City.
The City, as a general rule, assumes no responsibility for maintenance, inspection, or
improvements on private property. Stormwater maintenance and inspection activities outside the
rights -of -way are the responsibility of private property owners.
Maintenance activities within rights -of -way are normally performed on an as -needed basis
by the Street Department. The majority of the storm drainage system maintenance is in
response to calls from property owners or requests from the Public Works Department. The
remainder of the storm drainage system maintenance work is in response to needs detected
by the Street Department. These typically include removal of trash and debris and flow
impediments. Crews that perform this maintenance work also perform other duties.
0

•
1.5. The estimated land use composition within the MS4 service area can be broken down as
follows:
50% residential
23% commercial
15% industrial
12% open space
100%
1.6. The methodology used to determine the land use estimates was an analysis of GIS data
and Planning Department data.
1.7. An analysis of the information from the North Carolina Department of Environment and
Natural Resources (NCDENR), Division of Water Quality, indicates that the MS4 discharges
into a portion of Third Creek which has a Total Maximum Daily Load (TMDL) on turbidity,
Fourth Creek which has a TMDL on turbidity and all streams under the statewide "TMDL on
mercury.
LJ
2

•
L�
is
2.0. Reeeivin2 Streams
Table 1. Yadkin — Pee Dee River Basin
Receiving
Stream Name
Stream
Segment
Water
Quality
Classification
Use Support
Rating
Water Quality Issues
303(d)
List
Back Creek
12-108-20-4-2
C
DI
Fish Tissue Mercury
Third Creek
12-108-20-4a1
C
MC
Fish Tissue Mercury
Third Creek
12-108-20-4a2
C
MC
Fish Tissue Mercury
Third Creek
12-108-20-4b
C
EC
Turbidity
Fish Tissue Mercury
Fourth Creek
12-108-20-a1
C
EC
Fish Community Poor
1998
Fourth Creek
12-108-20-a2
C
MC
Fish Tissue Mercury
Fourth Creek
12-108-20-a3a
C
EC
Turbidity
Fecal Coliform
Benthos Fair
Fish Community Poor
Fish Tissue Mercury
Duck Creek
12-108-20-4-3
C
DI
Fish Tissue Mercury
I-L Creek
12-108-20-4-4
C
DI
Fish Tissue Mercury
Morrison Creek
12-108-20-3
C
MC
Fish Tissue Mercury
Gregory Creek
12-108-20-3-1
C
MC
Fish Tissue Mercury
Beaver Creek
12-108-13-1
C
DI
Fish Tissue Mercury
*Data taken from: 2014 303(d) list and 2014 Integrated Report 305(b)
MC = Meets Criteria
EC = Exceeds Criteria
DI = Data Insufficient

• 3.0. Existing Water Quality Programs
•
3.1. The local programs implemented for water quality within the MS4 are a voluntary post
construction stormwater ordinance and stream buffer requirements incorporated into the city's
Unified Development Ordinance. Iredell County runs a delegated local Erosion and
Sedimentation Control Program within the MS4.
3.2. The state program(s) implemented within a majority of the MS4 is the Phase II Post
Construction from the DEMLR section of NCDENR.
4

• 4.0 Permitting Information
4.1. The responsible party for each measurable goal will be the Public Works Director, Mr.
Scott Harrell. Please contact him using the information listed below:
Mr. Scott Harrell, P.E., Public Works Director / City Engineer
Public Works Department
City of Statesville
PO Box 1111
Statesville, NC 28687
704 878-3551
sharrellna.§tatesviIlenc.net
4.2. In lieu of an organizational chart, the following list shows the line of authority from the
Mayor to the Public Works Director:
Mayor/City Council
City Manager
Public Works Director/City Engineer
Assistant City Engineer
Street / Stormwater Sup.
• 4.3. The Charter for the City of Statesville, Article IV. Organization and Administration,
Chapter 1, City Manager, Section 4.3. Powers and Duties states:
The city manager shall be the administrative head of the city government, and shall be
responsible to the city council for the proper administration of all affairs of the city. Except as
otherwise provided by this charter, he shall have all the powers and duties assigned or
delegated to a city manager by state law....
U

• 5.0. Co -Permitting Information
0
•
5.1. The City has chosen not to enter into.any agreements or contracts as a co-permittee with any
other municipalities to develop and implement the Phase 11 stormwater program.
C.l

. 6.0. Reliance on Other Government Entity
6. I. The City will not develop, implement, and enforce a separate program for construction site
runoff control. Iredell County has a delegated local program to administer the North Carolina
Sedimentation Pollution Control.Act
6.2. The City will rely on Iredell County to enforce the provisions of the NPDES Phase II
Construction Site Runoff Controls minimum measure and the State General Construction
Stormwater Permit within the limits of the City and the ET1.
6.3. The contact information for the responsible party is listed below:
Ron Smith
County Manager
Iredell County
200 S Center Street
Statesville, NC 28677
704 878-3050
6.4. The city has an inter -local agreement with Iredell County to give them authority to run their
delegated local program within the city limits / MS4 service area.
•
•

• 7.0. Stormwater Manap-ement Program
Introduction and Overview
A proposed stormwater management program (SWMP) has been developed for the City and the
ETJ, as required by the NPDES Phase If regulations. The proposed plan consists of best
management practices (BMPs) and appropriate measurable goals to control the discharge of
pollutants from the MS4 to the maximum extent practical (MEP), for the five-year duration of the
stormwater permit. The development and implementation of the stormwater management program
will first focus on existing city maintenance programs and ordinances. The continuation of these
programs, along with the development of new programs where necessary, is deemed the most
effective approach to stormwater management.
The six major components of the stormwater management program are the six
minimum control measures required by NPDES Phase I1.
•
0

0 7.1. Public Education and Outreach on Stormwater Impacts
0
0
7.1.1 BMP's and Measureable Goals for Public Education and Outreach
ITEM
BMP
Measurable Goals
Year
Responsible
Position/Party
1
2
3
4
5
1
Newspaper Articles f Column
Provide topical and/ or seasonal articles to
Street/SW Sup.
address stormwater issues concerning
citizens and businesses.
2
Information on city website
Develop and maintain a stormwater section
Engineering Div.
on the existing city website. Stormwater
information, issues, and frequently asked
questions will be provided as well as contact
information for the city.
3
Distribute public education
Use utility bill inserts to distribute
Street/SW Sup.
materials and information to the
stormwater information to the general
general public
public. Other methods such as newsletters
and brochures at public places such as city
hall will also be utilized to distribute the
information.
4
Conduct public Presentations
Conduct presentations to groups as
Street/SW Sup.
requested. Citizen groups and business
groups will be targeted.
5
Educational materials for city
Develop / acquire educational materials for
Street/SW Sup.
schools
age specific groups. Conduct presentations
as requested.
6
Business outreach program
Develop / acquire information to educate
Street/SW Sup.
businesses about stormwater issues and
how they can help reduce stormwater
pollution.
7
Conduct public awareness
Provide stormwater informational signage
Street/SW Sup.
program
on city property, storm drain castings with
"Drains to Streams" and other
demonstration projects to enhance the
public's awareness of watersheds and
sources of stormwater pollution.
Key: Development Phase
Implementation Phase

• 7.1.2. Target Pollutant Sources: The pollutant sources targeted are those typically associated
with an increasingly urbanizing area. As homes, businesses, parking lots and roads are built, the
natural permeable landscape is replaced with more impermeable surfaces. The increased
stormwater runoff generates more sediment, the number one pollutant in North Carolina, as well
as washes more chemicals and debris associated with vehicles and residential, commercial and
industrial activity.
7.1.3. Target audience: The main education programs will be geared towards the general
public and some of the various businesses that operate within the limits of the City and the ETJ.
Public awareness of the stormwater program will be more effective using this strategy, because
the general public includes for the most part the same individuals that operate and manage the
various businesses. Some of the larger industrial operations within the city already operate
under NPDES industrial permits and some of the new development will be targeted under other
measures.
7.1.4. Outreach program: Our outreach strategy is again based upon reaching the majority of the
general public and the various businesses that operate within the limits of the City and the ETJ.
The majority of the general public and businesses within the city limits and some within the ETJ
will be reached through utility bill inserts of our water, sewer and electric customers. The City's
website will be utilized to increase this coverage as well as the local newspaper. Public
• presentations will reach targeted citizen and business groups in smaller numbers. Educational
materials will reach small groups of school students and to a lesser extent parents. A business
outreach program will reach a group that may to some extent be familiar with stormwater
programs, depending upon their industry's standard industrial classification code (SIC)
designation. And finally, various signage, such as on watershed boundaries or demonstration
projects, and storm drain castings with the message "drains to streams" and other brochures and
educational materials will help increase public awareness and reach another part of the
population. All together, the program will reach the majority of the general public and businesses
in the time period of the permit term.
•
The strategies used for the various contact groups will vary. For example, restaurants could be
targeted with an information campaign regarding the proper disposal of cooking grease. Auto
repair shops could be targeted with an information campaign regarding the proper disposal of oil
and other automotive fluids. Businesses in general could be targeted with a campaign to increase
parking lot sweeping to reduce the amount of automotive pollutants flushed from parking areas
by rainfall. Contractor groups can be targeted with a campaign to increase their use of control
measures on projects to reduce erosion and the resulting sedimentation of adjacent properties
and streams. The general public can be targeted with a campaign to recycle common household
waste products and seasonal messages such as the proper disposal of yard waste and use of
fertilizers. Hazardous household waste can be collected by various means such as an annual
collection day at a central collection point. Other specific examples can be developed over the
permit term, depending upon the targeted groups.
10

• 7.1.5. Evaluation: BMPs were considered based upon the likely success of reaching the most
widespread audience of the general public and various businesses. The effectiveness of the
measures can be evaluated based on the availability of the information and the percentage of the
audience reached. Tracking things such as numbers of mailers sent, circulation of newspaper
articles, hits on web page, number of businesses contacted, and feedback from citizens should
gauge the exposure and effectiveness of the measures.
0
0

0 7.2. Public Involvement and Participation
7.2.1 BMP's and Measureable Goals for Public Involvement and Participation
ITEM
BMP
Measurable Goals
Year
Responsible
Position/Party
1
2
3
4
5
1
Allow the public the opportunity
Conduct at least one public meeting to allow
Street/SW Sup.
to review and comment on the
the public an opportunity to review and
stormwater program
comment on the stormwater program.
2
Develop Outreach Programs and
Develop outreach programs for public
Street/SW Sup.
community volunteer
involvement. Examples to be considered are
opportunities
storm drain marking, litter pick-up,
recycling, and pollution watch groups.
3
Maintain telephone hotline /
Promote and maintain a telephone hotline /
Street/SW Sup,
helpline
help line to allow public involvement and
participation in stormwater program.
Key: Development t Phase
Implementation Phase
•
0
12

• 7.2.2. Public Meeting: During the development of our stormwater program, input from the
general public, businesses and organized groups representing various ethnic and economic
groups will be needed. At least one public meeting will be held to gather input. Additional
meetings and committees may be utilized as needed as the program develops and potential
funding options are explored.
7.2.3. Volunteer Program: Outreach and volunteer programs will be utilized to involve not
only the general public, but also various organized groups in the community. Various
programs such as Adopt a Stream, Park Clean -Sweeps, Adopt a Street, Storm Drain Marking,
volunteer educators / speakers, and citizen watch groups can be targeted to business groups,
professional associations, neighborhood associations, public service groups and youth
oriented groups.
7.2.4. Participation Program: Participation in the development and implementation of our
stormwater program will be accomplished by several means. During the implementation
phase, input from citizens representing major economic and ethnic groups will be solicited by
public meeting and other means as needed. Citizens and stakeholder committees can be
utilized during development of new codes and ordinances. Various citizen and business
groups will be able to participate in volunteer programs and provide input via a helpline and
• website.
7.2.5. Evaluation: The effectiveness of the measures can be evaluated based on the numbers
of programs developed or the available opportunities provided. Participation rates of the
various meetings and volunteer events and volume of telephone calls and web traffic can be
used as an indicator of the participation from the various economic, ethnic and age groups.
13

. 7.3. Illicit Discharie Detection and Elimination
•
•
7.3.1 BMP's and Measureable Goals for Illicit Discharge Detection and Elimination
ITE
BMP
Measurable Goals
Year
Responsible
M
Position/Party
1
2
3
4
5
1
Map the MS4 Within the City
Develop and maintain a map of the
Engineering Div.
and ETJ
MS4 and major outfalls and receiving
11
streams within the limits of the City and
ETJ.
2
Illicit Discharge Inspection,
Develop programs / ordinances for the
Engineering Div.
Detection, and Elimination
purpose of detection of illicit discharges
Program
to the MS4, authorize inspections, and
require the elimination of illicit
discharges that are detected.
3
Develop Outreach Programs
Develop outreach programs for public
Street/SW Sup.
and business involvement. Examples to
be considered are storm drain
stenciling, litter pick-up, recycling, and
pollution watch groups.
4
Employee training
Implement a program for training
Street/SW Sup.
employees for conducting dry weather
flow observations and observation of
illicit discharges during normal job
duties.
5
Maintain telephone hotline /
Maintain a mechanism for the public
Street/SW Sup.
helpline
and staff to report illicit discharges.
Key: Development Phase
Implementation Phase
14

• 7.3.2. Storm Sewer System Map: A map of the MS4 within the City and ETJ will be
developed and incorporated into the City's Geographic Information System (GIs). The
G1S is a joint effort with Iredell County and the City of Statesville. When the MS4 field
survey information input is added, the G1S can be used to show any targeted outfall, the
drainage basin that contributes to it, the MS4, and the types of residential, commercial,
and industrial areas that might contribute any particular type of pollution to the outfall.
Some of the existing layers include parcel boundaries, owner's name, most recent aerial
photos and topographic features. Therefore, any particular type of working map that is
needed for future field investigations will be generated using the GIs. The information
in the GIs can be updated as necessary when new development or redevelopment
occurs. Supplemental information such as the locations of detention ponds and other
BMPs can also be tracked using the GIs.
Other map sources such the Natural Resources Conservation Service soil survey maps or the
United States Geologic Survey quadrangle topographic maps may be used to delineate features
such as perennial and intermittent surface waters. The names and locations of all receiving
waters can also be verified using these maps.
7.3.3. Regulatory Mechanism: The city's Code of Ordinances will be used as the
regulatory mechanism to prohibit illicit discharges into the MS4. A review of the local
ordinances will be conducted first. Then proposed modifications to prohibit illicit
discharges into the MS4 will be drafted for review and approval. Key components of the
ordinance(s) will be the right to inspect for illicit discharges on private property, and the
requirement for the elimination at the source of any illicit discharges that are discovered.
The ordinances and the field inspection program should be developed within the first
year of the permit term. The field inspection program will take place in conjunction
with the field survey to develop the map of the MS4.
7.3.4. Enforcement: Enforcement of the illicit discharge ordinance could be the responsibility
of several of the cities divisions such as Code Enforcement, Engineering, or the City Attorney.
In some cases, other government entities that have responsibility for enforcement could be
coordinated with. For example, Iredell County Environmental Health could be involved in
failing septic tanks found and NCDENR could be involved for discharges found on sites with a
NPDES Industrial permit. Details for the enforcement of the elimination of illicit discharges at
the source can also be established by the ordinance.
7.3.5. Detection and Elimination: Field inspections will initially be coordinated with the
mapping operation and then be continued thru the permit term. A field inspection program will
use dry weather flow as the first indicator of a possible illicit discharge. Visual observations and
initial field testing for certain chemicals can be used to make the initial determination of whether
the dry weather flow is in fact an illicit discharge. Further testing in a laboratory and the
subsequent analysis can provide the confirmation of the initial field results, or determine that the
dry weather flow is not an illicit discharge. After the source of the illicit discharge has been
O determined, several steps can be taken to ensure the enforcement of the ordinance and the
elimination of the illicit discharge at the source.
a

An evaluation of land uses within the City and ETJ will be made to determine the initial areas
where the MS4 is mapped and the initial field investigations for dry weather flows will take place.
Land use information can be readily evaluated to determine the types of commercial, industrial, and
residential areas that might contribute more pollution into the MS4. For example, older residential
areas might have older sanitary sewer lines or septic tanks that could contribute pollutants. Older
industrial areas might have illicit floor drain connections to the MS4. Other industrial areas might
have on -site treatment systems with illicit connections. Areas where vehicle maintenance
activities are concentrated can also be targeted as potential pollution sources. The evaluation
could also use the locations of sanitary sewer pretreatment programs as criteria.
A procedure will be developed and field personnel trained to perform structure -by -structure
inspections in conjunction with the mapping program. The inspection program will be the initial
investigation that discovers dry weather flows into the MS4. When dry weather flows are
discovered, the field crew will report the dry weather flows so that they can be investigated. A
procedure will be developed and field personnel trained to investigate and determine the sources
of dry weather flows to determine if they are actually illicit discharges to the MS4. The crew that
investigates the dry weather flow will follow simple steps to trace and isolate the source of the
dry weather flow. They will make visual observations about the characteristics of the flow so
that descriptive data such as color, odor, oil sheen, turbidity, or other such information is
recorded that could help identify the source. If so equipped, they will perform initial field tests to
attempt to determine if trace amounts of certain chemicals are present. They will also take
samples if necessary for laboratory analysis. Based upon the particular location, they can
O evaluate the types of facilities located in the proximity to try to identify potential sources of
illicit discharges or improper disposal. All of the information will be recorded on standard forms
that are developed as a part of the investigation procedure.
When sources of illicit discharges are discovered, procedures will be put in place to remove said
sources. These steps, depending upon the nature of the source, can include:
1. Sending a letter to the property owner/business operator with a request for the
owner/operator to investigate the source of the illicit discharge.
2. Conducting a site visit and interview to encourage the owner/operator to take voluntary
corrective measures.
3. Performing additional tests if necessary to confirm the source of the illicit discharge.
4. Issuing a letter of noncompliance if the owner/operator does not take corrective action.
5. Sending a copy of the letter and information to NCDENR or other entity if applicable
requesting assistance.
6. Performing additional inspections as necessary to determine if corrective actions are
taken.
7. Taking additional legal measures as necessary to see that corrective actions are taken.
During the initial inspection phase, the methods and procedures developed to find illicit
discharges and locate their source and remove them will be evaluated on their efficiency and
Seffectiveness. If needed, additional measures will be taken to improve on the process.
11M

•
7.3.6. Non Stormwater Discharges: The following categories of non-stormwater discharges
have not been identified as significant contributors of pollutants to the MS4: water line flushing,
landscape irrigation, diverted stream flows, rising ground waters, uncontaminated ground water
infiltration, uncontaminated pumped ground water, discharges from potable sources, foundation
drains, air conditioning condensation, irrigation water, springs, water from crawl space pumps,
footing drains, lawn watering, individual residential car washing, flows from riparian habitats
and wetlands, de -chlorinated swimming pool discharges, and street wash water.
7.3.7. Outreach: Outreach to the general public and the various businesses that operate within the
limits of the City and the ETJ as well as public employees will be an important aspect of this
measure. The Public Education and Outreach program, the Public Involvement and Participation
program, and the Pollution Prevention and Good Housekeeping program will all be part of a
coordinated effort. Informing the general public, various businesses, and municipal employees of
the importance of the hazards associated with illicit discharges and improper disposal of waste
will be an integral part of all three of these minimum measures. The strategies used in the public
education and public involvement minimum measures will be supplemented by employee training
and other aspects of the good housekeeping minimum measure.
7.3.8. Staff Training: Staff training will be conducted at various levels depending on the nature
of their typical job duties and contact with the storm drain system. Personnel such as meter
readers, parks and grounds workers, and utility workers can be cross trained to provide extra
eyes in the field and report suspicious activities or any spills observed while performing their
routine duties. Various public works personnel currently assigned to maintain the MS4 can be
assigned to map and inspect the MS4 and be trained in methods to detect and identify illicit
discharges and to determine their sources.
7.3.9. Evaluation: The effectiveness of these measures will be evaluated by different
means. The mapping and inspecting of the MS4 will require breaking it down into
manageable sub -basins starting with high priority areas and measuring it by completed
area. Outreach can be evaluated numerically similarly with employee training based on
opportunities provided and participation rates, but can also be looked at to determine the
cross section of the general public and businesses affected or participating.
17

. 7.4. Construction Site Stormwater Runoff Control
7.4.1 BMP's and Measureable Goals for Construction Site Stormwater Runoff Control
ITEM
BMP
Measurable Goals
Year
Responsible
Position/Party
1
2
3
4
5
1
Erosion and Sediment Control
The City will require that a copy of the
Engineering Div.
Plan
Approval letter from Iredell County Erosion
Control Program be submitted before a
zoning compliance permit will be issued, if
the project will disturb an acre or more of
land.
2
Educational materials for land
Develop / acquire educational materials for
Street/sw Sup.
development
developers / contractors concerning erosion
Engineering Div.
and sedimentation control.
Key: Development Phase
Implementation Phase
4)
18

• 7.4.2. Regulatory mechanism: We have an inter -local agreement with Iredell County for them to
enforce their delegated local Erosion and Sediment Control program within the city's jurisdiction.
As long as this remains in effect, we will not develop, implement, and enforce a separate program
for construction site runoff control within the limits of the City and the ETJ. The City will only
provide an oversight mechanism with local policies and ordinances. The City will require that a
copy of the approval letter from Iredell County be submitted before signing off on building
permits to be issued if construction activities will result in a land disturbance of an acre or more.
�J
O
S

• 7.5. Post -Construction Stormwater Management in New
Development and Redevelonment
7.5.1 BMP's and Measureable Goals for Post -Construction Stormwater Management
ITEM
BMP
Measurable Goals
Year
Responsible
Position/Party
1
2
3
4
5
1
Post Construction stormwater
Update city code / Unified Development
Engineering Div.
Ordinance
Ordinance to allow adequate legal authority
to meet the objectives of the post -
construction stormwater program.
2
Stormwater Concept and Design
The City will require stormwater concept
Engineering Div.
Plans
and/or design plans for all development that
changes the characteristics of stormwater
runoff from a site.
3
Stormwater Controls
The City will require that all new or
Engineering Div.
redevelopment projects that meet the
criteria specified by the NPDES Phase
11 regulations must employ
engineered stormwater controls and
will maintain an inventory of all
projects and control measures. The
Stormwater BMP Manual published
by NCDENR will be used as a
guideline.
4
Operation and Maintenance
The City will require recorded operation and
Engineering Div.
Program
maintenance agreements with posting of
financial assurance for the purpose of
maintenance, repairs or reconstruction
necessary for adequate performance of
stormwater control structures and require
annual inspections by qualified persons be
made to insure proper operation and
maintain documentation of all inspections,
findings and enforcement actions.
Key: Development Phase
Implementation Phase
•
20

• 7.5.2. Regulatory Mechanism: The City's current stormwater program is outlined in the City's
Unified Development Ordinance. The UDO specifically applies to all development, public and
private, within the City and its ETJ. A review of the UDO and other local ordinances will be
conducted first, then modifications that will be required to bring the code into compliance with
the NPDES Phase II regulations to cover new development and redevelopment projects that
disturb one acre or more or are part of a larger common plan of development will be drafted for
review and approval.
7.5.3 Operation and Maintenance: The long-term O&M of the stormwater BMPs will be
assured by O&M agreements recorded with the Iredell County Register of Deeds. The financial
security of the agreements will be assured by the posting of adequate financial instruments for the
purpose of the maintenance, repairs, or reconstruction necessary for adequate performance of the
BMPs. An O&M plan shall be provided that is consistent with the recorded agreement. Annual
inspections of the BMPs will be conducted by qualified professionals, and shall begin within one
year of the filing date of the document for the BMP. A copy of the annual inspection report will
be furnished to the City's Engineering Division, in a format approved for that purpose, within
thirty days of the date of the inspection. If necessary, corrective actions will be required within a
specified date of the inspection, by the owner.
0
The City will develop an oversight program for on -site wastewater treatment systems for
domestic wastewater. This program will be coordinated with the Iredell County Health
Department.
7.5.4. Non-structural BMPs: The current Unified Development Ordinance (UDO)
contains several provisions for non-structural BMPs. The preservation of open space,
trees and natural features is encouraged and or required in the ordinance. Landscape
design standards require landscaping and tree plantings. The application of these
requirements ranges from residential subdivisions to commercial perimeter buffers
and screenings to interior parking lot landscaping. The UDO contains various types of
development standards including cluster subdivisions and mixed -use developments to
help reduce infrastructure and transportation needs. There are also provisions to set
aside areas for recreation and open space. All of these provisions combined have the
effect of reducing impervious surface area. A review of the UDO will be performed to
address consistency with NPDES Phase If regulations and evaluate potential
additional measures to introduce green infrastructure, preserve trees and open space,
protect natural resources, and promote redevelopment and in fill, to reduce the
percentage of impervious area after development and thus reduce the impact of
polluted stormwater runoff.
7.5.5. Structural BMPs: The UDO currently requires structural BMP's for larger developments.
The Stormwater Best Management Practices manual published by the NCDENR is used as a
guideline. The City's UDO will have to be updated to require that all new or redevelopment
projects that meet the criteria specified by the NPDES Phase lI regulations must employ
engineered stormwater controls. This will be accomplished by the adoption of a post
construction ordinance based on NCDENR's model ordinance. All stormwater controls and
21

• structures shall meet the requirements for treatment options approved by the NCDENR Division
of Water Quality as shown in their BMP manual. Combinations of controls or alternative
controls will be allowed if they meet the design criteria.
0
C.
7.5.6. Evaluation: The evaluation of these measures will be based on adoption of a post
construction ordinance and any intermediate milestones within the BMP timeline. Later
effectiveness of this measure can be based on construction of structural BMP's required by the
ordinance and the operation and maintenance provided as tracked by annual inspections to
determine if additional requirements or training is needed.
22

. 7.6. Pollution Prevention/Good Housekeepine for Municipal Operations
7.6.1 BMP's and Measureable Goals for Pollution Prevention/Good Housekeeping for Municipal
Operations
ITEM
BMP
Measurable Goals
Year
Responsible
Position/Party
1
2
3
4
5
1
Employee Training
Conduct annual training programs
Street/SW Sup.
for public services employees
regarding pollution prevention and
good housekeeping
Z
Facilities Inventory and O&M
Develop an inventory of all city owned
Street/SW Sup.
Plans
facilities and operations with the
potential for generating polluted
stormwater runoff and develop an
inspection and operation and
maintenance program to prevent or
reduce pollutant runoff.
3
Bulk Material Storage
Evaluate covered or inside storage for bulk
Street/SW Sup.
materials to prevent pollution of
stormwater runoff from material storage
areas.
4
MS4 maintenance
Develop a system maintenance
Street/SW Sup.
program that includes inspection,
®
clean -out, and repair as necessary.
S
Cleaning Paved Areas
Develop a program for reducing
Street/SW Sup.
pollutants from paved areas at municipal
parking lots, vehicle maintenance and
refueling areas, vehicle storage areas,
and streets.
6
Chemical Pesticides,
Develop a program for reducing
Street/SW Sup.
Herbicides, and
pollutants to stormwater runoff from
Fertilizers
municipal uses of chemical pesticides,
herbicides, and fertilizers.
Key: Development Phase
Implementation Phase
•
23

0
7.6.2. Affected Operations: The main municipal operations that will be impacted by
the operations and maintenance program will be the Public Works, Water Resources,
and Recreation and Parks departments.
The industrial facilities that are subject to general or industrial permits are:
1. Statesville Regional Airport NCG150007
2. Third Creek WWTP NCG110113
3. Fourth Creek W WTP NCG 110112
7.6.3. Training: Training programs will be developed for municipal employees that
work in such activities as building and grounds maintenance, vehicle maintenance,
street repair and construction, sanitation, recycling, landscaping, and public utilities.
Currently there are training programs for typical OSHA related confined space,
trenching and construction related practices. These existing training materials can be
utilized as well as some of the materials that are developed for the outreach programs
for public education, public involvement, and illicit discharges since municipal
employees perform many of the same basic functions that involve facility operations
and maintenance in private industry. They are also a good source for feedback for
developing the programs that are intended for the general public and industry. Cross
training of employees will be utilized to assist in illicit discharge detection to take
advantage of extra eyes in the field.
7.6.4. Maintenance and Inspections: Current MS4 maintenance activities are only performed
on city properties and within the rights -of -way of city streets which is only part of the
stormwater conveyance system within the limits of the City and the ET.I. The City, as a general
rule, assumes no responsibility for maintenance, inspection, or improvements on private
property. Stormwater maintenance and inspection activities outside the rights -of -way are the
responsibility of private property owners. Maintenance activities within rights -of -way are
normally performed on an as -needed basis by the Street Department in response to maintenance
needs detected by the Street Department or in response to calls from property owners or other city
staff. These typically include removal of trash and debris and flow impediments. Street sweeping
and mowing are performed based upon a schedule.
The proposed maintenance program will be developed using the same basic activities that
currently take place. The inspection of the stormwater drainage system within the limits of the
City and the E'CJ will take place in conjunction with the mapping operation. All stormwater
drainage system structures will be inspected and the condition can be documented as a part of
that operation. Maintenance work orders can also be generated as a result of that operation. A
long-term systematic maintenance program will be put in place as a result of the conditions
noted during the inspections. Additional measures will be evaluated as the program is developed.
24

LI
U
7.6.5. Vehicular Operations: Pollutants associated with municipal parking lots and streets are
removed by sweeping operations. Municipal vehicle maintenance activities typically take place
indoors. The majority of municipal vehicles and equipment parked overnight at the public
services complex have covered parking/storage areas. Since this is the same complex where
vehicle maintenance operations take place, the covered storage and maintenance areas reduce
the pollutants discharged into the storm drainage system. Additions to the current program
could include diversion berms or covers for storm drainage structures that are near vehicle
storage and operations. Salt used for deicing activities is currently stored in an enclosed area.
Additional measures will be evaluated to reduce the discharge of pollutants from these areas.
7.6.6. Waste Disposal: Currently waste from street sweeping and catch basin cleaning is
collected, temporarily stockpiled and then taken to the landfill for disposal.
7.6.7. Evaluation: The effectiveness of these measures will be evaluated by different means
which will be developed with the programs. For example, employee training can be evaluated
numerically based on opportunities provided and participation rates. Facilities inventory and
operation plans as well as MS4 maintenance can be prioritized to cover areas more prone to
contribute pollutants and evaluated on completing scheduled areas. Pavement cleaning could be
evaluated based on amounts of pollutants removed or frequency of removal.
25