NCS000437_APPLICATION_20030310

STORMWATER DIVISION CODING SHEET
M54 PERMITS
PERMIT NO.
AICSQ U
DOC TYPE
❑ FII)IAL PERMIT
❑, /A'NNUAL REPORT
Q" APPLICATION
❑ COMPLIANCE
❑ OTHER
AOC DATE
❑ ��✓ b� 1
YYYYMMDD

'w
State of North Carolina
Department of Environment & Natural Resources
Division of Water Quality
OFFIC USE ONLY
Date Rec'd
o3 -r- -u3
Fee Paid
�P -71 . or,
Permit Number
43:7
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. �tti�
I. APPLICANT STATUS INFORMATION
cf' 'ice
a.
Name of Public Entity
City of Greenville
Seeking Permit Coverage
`
b.
Ownership Status (federal,
Local
state or local)
c.
Type of Public Entity (city,
City
�•°'��'
town, county, prison, school,
etc.)
d.
Federal Standard Industrial
SIC 91 - 97
Classification Code
e.
County(s)
Pitt
f.
Jurisdictional Area (square
62.3
miles
g.
Population
Permanent
70,476
Seasonal (if available)
h.
Ten-year Growth Rate
3.1% Annualized rate
L
Located on Indian Lands?
❑ Yes ®No
II. RPE / MS4 SYSTEM INFORMATION
a. Storm Sewer Service Area
(square miles
28.49
b. River Basin(s)
Tar -Pamlico, Neuse
c. Number of Primary Receiving
Streams
15
d. Estimated percentage of jurisdictional MS4 area containing the following land use activities:
• Single Family
20.56
• Duplex
1.85
• Multi -Family
8.77
• Mobile Home
.17
• Mobile Home Park
2.24
• Commercial
7.97
• Office
2.65
• Institutional
8.29
• Public Parkin
.11
Page 1
SWU-264-103102

NPDES RPE Stormwater Permit Application
• Industrial
4.50
• Landfill
.93
• Utili
2.31
• Cemetery
.27
• Recreation
8.64
• Vacant
30.74
Total =
100%
e. Are there significant water
quality issues listed in the
attached application report?
❑ Yes ® No
III. EXISTING LOCAL WATER QUALITY PROGRAMS
a. Local Nutrient Sensitive Waters Strategy
® Yes ❑ No Not applicable at the time of
the permit, but proposed implementation tc
be require in Aug. 2004 for Tar -Pam
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 ermitted Phase I enti ?
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
ermittees?
V. RELIANCE ON ANOTHER ENTITY TO SATISFY ONE OR MORE OF YOUR PERMIT OBLIGATIONS
(If more than one, attach additional sheets)
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
NCDENR — Division of Water Quality
• Element they will implement
Portion of Construction Site Stormwater Runoff Control
• Contact Person
Jim Mulligan, Water Quality Supervisor
• Contact Address
943 Washington Square Mall, Washington, NC 27889
• Contact Telephone Number
252-946-6481
c. Are legal agreements in place
to establish responsibilities?
® Yes ❑ No Between Land Quality and Water Quality for
issuance of the general permit along with Erosion Control Plan
VI. DELEGATION OF AUTHORITY (OPTIONAL) (N/A)
Page 2
SWU-264-103102

V,
NPDES RPE Stormwater Permit Application
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.
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 forgathering 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 of fines and imprisonment for knowing violations.
� n
Signature
Name
M rvin Davis
Title
City Manager
Street Address
201 Martin Luther King, Jr. Dr.
PO Box
7207
City
Greenville
State
NC
Zip
27834
Telephone
252-329-4431
Fax
252-329-4435
E-Mail
[e-mail]
Page 3
SWU-264-103102

iz
NPDES RPE Stormwater Permit Application
VIII. MS4 CONTACT INFORMATION
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
Thomas N. Tysinger, Jr., PE
b.
Title
Director of Public Works
c.
Street Address
1500 Beatty Street
d.
PO Box
7207
e.
City
Greenville
f.
State
NC
g.
Zip
27834
h.
Telephone Number
252-329-4520
i.
Fax Number
252-329-4535
j.
E-Mail Address
[e-mail]
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
N/A
Management Program
N/A
b.
UIC program under SDWA
NCO023931
c.
NPDES Wastewater Discharge
Anthony Miller, Interim Water Resources Director
Permit Number
Greenville Utilities Commission
252-551-1590
d.
Prevention of Significant
N/A
Deterioration (PSD) Program
N/A
e.
Non Attainment Program
f.
National Emission Standards for
N/A
Hazardous Pollutants (NESHAPS)
reconstruction approval
g.
Ocean dumping permits under the
N/A
Marine Protection Research and
Sanctuaries Act
h.
Dredge or fill permits under
N/A
section 404 of CWA
Page 4
SWU-264-103102

0
Table of Contents
1. Storm Sewer System Information ........................................ :............................ 3
1.1.
Population Served...................................................................................... 3
1.2.
Growth Rate.............................................................................................. 3
1.3.
Jurisdictional and MS4 Service Areas........................................................... 3
1.4.
MS4 Conveyance System............................................................................ 3
1.5.
Land Use Composition Estimates..................................:.............................. 3
1.6.
Estimate Methodology................................................................................ 4
1.7.
TMDL Identification.................................................................................... 4
2.
Receiving Streams........................................................................................ 5
3.
Existing Water Quality Programs ........................................ ...........................
6
3.1.
Local Programs..........................................................................................
6
3.2.
State Programs..........................................................................................
6
4.
Permitting Information...................................................................................
7
4.1.
Responsible Party Contact List....................................................................
7
4.2.
Organizational Chart .................................................................................11
4.3.
Signing Official.........................................................................................12
4.4.
Duly Authorized Representative..................................................................12
5.
6.
Co -Permitting Information...........................................................................
Reliance on Other Government Entity............................................................
13
14
6.1.
Name of Entity .........................................................................................14
6:2.
Measure Implemented...............................................................................14
6.3.
Contact Information for Responsible Party ..................................................14
6.4
Legal Agreements.....................................................................................14
7.
Stormwater Management Program Plan...........................................................
15
7.1
Public Education and Outreach on Storm Water Impact................................15
7.2.
Public Involvement and Participation..........................................................19
7.3.
Illicit Discharge Detection and Elimination ....................... ... .........................22
7.4.
Construction Site Stormwater Runoff Control ................... 1............................27
7.5.
Post -Construction Storm Water Management in New Development and
Redevelopment.........................................................................................28
7.6.
Pollution Prevention/Good Housekeeping for Municipal Operations................31

1. Storm Sewer System Information
•
1.5
•
Population Served: 60 476 b , 7o, 476 �
Savrce 7
Growth Rate: 3.1% annual rate from 1990 Census to 2000 Census
Jurisdictional and MS4 Service Areas: Jurisdictional 62.3 sq. miles, MS4
Service Area 28.49 Sq. Miles
MS4 Conveyance System
Briefly describe the composition of the existing MS4 system (pipes,
ditches, sheet flow) and state of maintenance of the system:
The City's storm drain system includes a combination of pipes, ditches,
curb and gutter, and overland flow. Our City street standards allow for
the use of curb and gutter and/or roadside ditches. New storm sewer
outfalls must comply with provisions of the Neuse and Tar -Pamlico Buffer
Rules. New development is also required to provide stormwater
detention on sites which exceed twenty thousand (20,000) sf of
impervious area.
Maintenance of detention basins is the responsibility of the land owner
and enforced through the Nuisance Abatement ordinance. Major culverts
and open channels are policed for debris clogs after each major storm
event. Pipe systems and catch basins are cleaned by hand with a
vacuum truck based on flooding reports and as identified through regular
maintenance activities. City streets are swept 10 times per year. The City
has an active street sweeping program that includes 180 miles of City
maintained streets and 10.2 miles of State maintained streets.
Approximately 40 miles of streams/open channels are manually cleaned
and cleared of obstructions annually.
Land Use Composition Estimates:
7
Estimated percentage of MS4 Service area containing the following four
land use activities:
• Single-family
20.56
• Duplex
1.85
• Multi -Family
8.77
• Mobile Home
.17
• Mobile Home Park
2.24
• Commercial
7.97
3

•
•
Office
2.65
•
Institutional
8.29
•
Public Parkin
11
•
Industrial
4.50
•
Landfill
.93
•
utility
2.31
•
Cemete
.27
•
Recreation
8.64
Vacant
30.74
Total
100
V 1.6. Estimate Methodology
Describe the methodology used to calculate land use percentages:
The land use percentages attained in 1.5 are based on the City's
Comprehensive Plan. The Comprehensive plan is based on existing land
use surveys and maps.
1.7. TMDL Identification
Do you discharge to a TMDL controlled water body:: Yes. Neuse River
Basin. Approximately 1/3 of Greenville's jurisdiction is in the Neuse River
Basin.
4

0
r 2. Receiving Streams
Table 1. Tar Pamlico River Basin
? p1f
lz�r•+dl� �r�rr _ JAP
ilp�ei'�Fr SP�r~r 17
Use
Water
Receiving Stream
Stream Segment
Water Quality
Support
Quality
Name
Classification
Rating
Issues
From Source to Tar River
Harris Mill Run
28-92
C NSW
NR
From Source to Tar River
Schoolhouse Branch
28-93
C NSW
NR
From Greenville Raw Water
Supply intake to 1.2 miles
downstream of the mouth of
Tar River
Broad Run 28- 94
C NSW
NR
From Source to Tar River
Parker Creek
28-95
C NSW
NR
From Source to Tar River
Greens Mill Run
28-96
C NSW
NR
From Source to Greens Mill
Fornes Branch
Run 28-96-1
C NSW
NR
From Source to Greens Mill
Reedy Branch
Run 28-96-2
C NSW
NR
From Source to Tar River
Hardee Creek
28-97
C NSW
NR
From Source to Hardee
Meeting House Branch
Creek 28-97-1
C NSW
NR
From Source to Meeting
Bell Branch
House Branch 28-97-1-1
C NSW
NR
From Source to Tar River
Barber Creek
28-98
C NSW
NR
From Source to Moyes Run
Cannon Swamp
28-99-1-1
C NSW
NR
From Source to Cannon
Baldwin Swamp
Swam 28-99-1-1-1
C NSW
NR
Table 2. Neuse River Basin
Use
Water
Receiving Stream
Stream Segment
Water Quality
Support
Quality
Name
Classification
Rating
Issues
From Source to mouth of
Swift Creek
Bear Branch 27-97-(0.5)
C; Sw; NSW
NR
From Source to Swift Creek
Gum Swamp
27-97-1
C; Sw; NSW
NR
From Source to Swift Creek
Fork Swam
27-97-4
C; Sw; NSW
NR
5

•
3. Existing Water Quality Programs
3.1. Local Programs:
The City currently administers a Water Supply Watershed Protection
Program and Erosion and Sediment Control Program, The local Water
Supply Watershed Protection program consists of an overlay district
defined in the Zoning Ordinance with specified standards, The Erosion
and Sedimentation Control Ordinance was adopted in 1978 at which time
the City began implementing this locally delegated program. The City has
a land use map, a part of the City's Comprehensive Plan since 1993. The
City is currently in the process of updating its Comprehensive Plan. The
City also administers a drainage ordinance that requires stormwater
detention for sites which exceed twenty thousand (20,000) square feet of
impervious surface.
3.2. State Programs:
The existing water quality programs being implemented by the state
within the City's service area are the Neuse River Basin: Nutrient
4D Sensitive Waters Management Strategy: Protection and Maintenance of
Existing Riparian Buffers Rule and Nutrient Management Rule. It also
administers the Tar -Pamlico River Basin: Nutrient Sensitive Waters
Management Strategy: Protection and Maintenance of Existing Riparian
Buffers Rule.
•
The State administers the NPDES Phase I Stormwater Program on
industrial facilities and construction activities that disturb five or more
acres of land. It also administers the NPDES Wastewater Discharge
Permits Program and the Soil Erosion and Sedimentation Control
Program.
6

I
J
•
4. Permitting Information
r 4.1. Responsible Party Contact List:
Measurable Goals
Responsible Position/Party
Public Education and Outreach on Stormwater Impacts
1
Produce and distribute brochures, flyers, and
Public Works Department (PWD)
utility bill inserts at least once a year. Will
City Engineer
include information on steps to reduce pollution
1500 Beatty Street
sources, proper disposal of used oils and toxic
Greenville, NC 27834
materials, and awareness of illicit discharges.
Phone:' 252-329-4467
The City will record the number of materials
Fax: [phone]
produced and distributed and the number of
eo le at events.
2
Produce and distribute stormwater information
Public Works Department (PWD)
booklet beginning the third year and continuing
City Engineer
on, that discusses the responsibility of citizens
1500 Beatty Street
and how they play a role in preventing future
Greenville, NC 27834
pollution. The City will track the number of
Phone: ,252-329-4467
booklets produced and distributed.
Fax: [phone]
3
Develop and maintain a stormwater information
Public Works Department (PWD)
page for the existing internet website in the
City Engineer
third year of the program. Post information on
1500 Beatty Street
water quality, stormwater pollutants, and ways
Greenville, NC 27834
to minimize them. Provide Contacts for
Phone: [phone]
reporting and questions. The City will record the
Fax: [phone]
number of hits to the website.
° 4
Develop educational information on stormwater
Public Works Department (PWD)
for schools and use in presentations to school
City Engineer
age children. Present information in appropriate
1500 Beatty Street
forums at least once per year. The City will
Greenville, NC 27834
maintain a record of educational materials
Phone: [phone]
distributed and number of schools and classes
Fax: [phone]
information is given to.
,r 5
Develop and conduct, on an annual basis, an
Public Works Department (PWD)
educational campaign to inform area volunteer
City Engineer
organizations on stormwater pollutants, water
1500 Beatty Street
quality, and public reporting of illicit discharges
Greenville, NC 27834
as well as public involvement programs. The
Phone: [phone]
City will track the number of materials
Fax: [phone]
distributed and the number of groups spoken to
-,6
Develop an informational video program to
Public Works Department (PWD)
educate the public about storm water issues,
City Engineer
problems and solutions to storm water
1500 Beatty Street
problems, and to generate awareness and
Greenville NC 27834

e
•
interest in storm water management. The City
Phone: [phone]
will record the number of videos produced,
Fax: [phone]
distributed and shown.
Public involvement and Participation
,/ 7
Ongoing Storm Drain Stenciling program with
Public;Works Department (PWD)
event days throughout the year and in
City Engineer
cooperation with Citywide Spring Cleanup
1500 Beatty Street
Program. This will help raise awareness about
Greenville, NC 27834
the connection of storm drains to receiving
Phone: [phone]
waters. The City will record the number of
Fax: [phone]
stenciling volunteers and the number of drains
stenciled.
8
The Environmental Advisory Commission is an
Public Works Department (PWD)
ongoing citizen advisory committee, which
Public Works Director
meets monthly. Appointed by City Council to
1500 Beatty Street
address environmental concerns within the City
Greenville, NC 27834
of Greenville. This committee will provide
Phone: [phone]
involvement on program development pertaining
Fax: [phone]
to regulations and future projects. The City will
maintain a record of meetings held and the
number of attendees.
r 9
Establish and maintain a community hotline to
Public Works Department (PWD)
provide a means for concerned citizens and
Public Works Director
agencies to contact the appropriate authorities
1500 Beatty Street
when they see water quality problems. The City
Greenville, NC 27834
will record the number of calls received and the
Phone: [phone]
number of problems/incidents remedied as a
Fax: [phone]
result of the hotline calls.
'(10
Public information meetings involving
Public Works Department (PWD)
neighborhood groups, professional
Public Works Director
organizations, industrial and commercial
1500 Beatty Street
associations, environmental groups, builders
Greenville, NC 27834
association and others that have an interest in
Phone: [phone]
this issue. Public information meetings will be
Fax: [phone]
organized on a periodic basis to assist with
specific issues. The City will maintain a record
of meetings held and the number of attendees.
Illicit Discharge Detection and Elimination
/11
A plan will be developed to report failing septic
Public Works Department (PWD)
systems to the Pitt County Health Department,
Public Works Director
The City will log, report, and follow through with
1500 Beatty Street
the Health Department.
Greenville, NC 27834
Phone: [phone]
Fax:[phone]
12
Use brochures, flyers, and other educational
Public Works Department (PWD)
tools to educate the public on illegal dumping
Operations Manager
and inventory prime areas of illegal dumping.
1500 Beatty Street

•
•
The City will track the number of educational
Greenville, NC 27834
tools distributed, whether or not an inventory is
Phone: [phone]
completed of prime areas for illegal dumping,
Fax: [phone]
and the number of penalties enforced upon the
artici ants of illegal dumping,
/13
Develop a storm drain system map beginning in
Public Works Department (PWD)
year one of this program. The City will track the
City Engineer
progress of the storm drain system map.
1500 Beatty Street
Greenville, NC 27834
Phone:[phone]
Fax: [phone]
,/14
Develop and establish an ordinance within the
Public Works Department (PWD)
first year to detect and eliminate illicit
City Engineer
discharges. The City will record the development
1500 Beatty Street
of this ordinance and the number of
Greenville, NC 27834
enforcement actions that occur as a result of the
Phone: [phone]
ordinance.
Fax:[phone]
r15
Dry weather survey of 20% of the storm drain
Public Works Department (PWD)
system outfalls per year will be conducted to
City Engineer
identify non -storm water flows. Areas with
1500 Beatty Street
suspicious discharges will be investigated. The
Greenville, NC 27834
City will keep a record of the number of field
Phone: [phone]
tests conducted, the number of illicit
Fax: [phone]
connections found, and the number of illicit
connections reported.
�16
Establish and maintain a hotline for citizens to
Public Works Department (PWD)
report illegal dumping and suspicious
Public Works Director
discharges. The hotline will be advertised in the
1500 Beatty Street
City page, utility bill insert, website, etc. The
Greenville, NC 27834
city will record the number of calls to the hotline
Phone: [phone]
and the number of problems/incidents remedied
Fax: [phone]
as a result of the hotline.
Post -Construction Storm Water Management in New Development and
Redevelopment
or 17
Develop and implement a stormwater ordinance
Public Works Department (PWD)
by March 10, 2005. The City will adopt an
City Engineer
ordinance that will incorporate state standards
1500 Beatty Street
for buffers and high density structural BMPs and
Greenville, NC 27834
will refer to the States BMP manual. The will
Phone: [phone]
also develop a program for maintenance and
Fax: [phone]
inspection of structural runoff controls in years
two through five. The city will record the
development of the ordinance and the number
of enforcement actions that occur as a result of
the new ordinance.
f18
Develop a workshop and educational material in
Public Works Department (PWD)
year one for developers and the public on new
City Engineer
develop men redevelo ment stormwater
1500 Beatty Street

•
•
responsibilities. The City will record the number
Greenville, NC 27834
of groups spoken to and the number of
Phone: [phone]
materials distributed.
Fax: [phone]
19
Develop an oversight program in year three to
Public Works Department (PWD)
coordinate with the Pitt County Health
PubliciWorks Director
Department to educate homeowners about the
1500 Beatty Street
proper operation and maintenance of their
Greenville, NC 27834
septic systems and to allow for enforcement of
Phone: [phone]
failing systems.
Fax: [phone]
Pollution Prevention/Good Housekeeping for Municipal Operations
20
Evaluate existing programs and develop
PubliclWorks Department (PWD)
pollution prevention workshop for,grounds
Public Works Director
maintenance and landscaping employees trained
1500 Beatty Street
to obtain reduction in fertilizer, pesticide, and
Greenville, NC 27834
water usage in year two. Will maintain records
Phone: [phone]
of the number of employees trained.
Fax: [phone]
v'21
Develop a spill prevention plan and control
Public Works Department (PWD)
procedures in year two. Will keep record of the
Operations Manager
number of persons trained in spill response and
1500 Beatty Street
the number of educational material distributed
Greenville, NC 27834
to municipal employees.
Phone: [phone]
Fax;252-329-4535
v22
Assess existing fleet maintenance procedures
Public .Works Department (PWD)
and develop a pollution prevention workshop for
Operations Manager
employees working with fleet maintenance.
1500 Beatty Street
Distribute educational materials. Will record the
Greenville, NC 27834
number of employees that attend the workshop
Phone: [phone]
and the number of educational materials
Fax: [phone]
distributed.
123
Continue the existing program in which all city
Public Works Department (PWD)
maintained streets are swept annually. Will
City Engineer
record the number of street miles swept on an
1500 Beatty Street
annual basis.
Greenville, NC 27834
Phone: [phone]
Fax: [phone]

t 4. . Organizational Chart:
Ergineerin9 Dm$on
I 19 Empbyees
f CAW Ergire II
F�Transportaion Plann�
{ _ Crvd Engineer)
ISurveyor 1
CTraffic Services Supervisor
Eutgineenng Assistant it
Traffic Sigrid Terimiraart II
Adninistreme Secretary
CADO SpeCaisl
r — Trafk Control Coigne Leatler
Traffic Signal Tgchnician I
Traf is Control WoTm(3)
j Admr SDMWO Dikfsion j
65 E ployees
Public works Coordinator ( I Admini5tra services Specia4St
Secretary I Amdwding TecMician I
Secretary 1 (PT) 1 i
Clerk -Typist
SVeel Maintenance DMSjon
28 Finpluyees
Street Superintendent
�,__Asssiart Street Superntendeni 1
Street Supervisor II (4)
Street Supervisor I
Egu7Ti Operator V (21
Cement Finisher (2)
Equipment Operator rV (5)
Equtpmerd Operator III (4)
Laborer (8]
4 .............
Inmate C21 -
183.5 TOTAL
PUBLIC WOWS FAfPLOYEES
Transit Division E fnspeciions Denson
11.5 Employees FE 12.5 Employees
Transd Manager I
1
Chief Building Inspector
Transd Driver(8)
Building Inspecrtor(4)
Transit Drtver(PT) (2)
Electrical Inspector (2)
Secretary (PT)
Permit Officer
Secretary 1
Cleric -Typist (PT)
Dem khan Project Team Leader
DemoWion Lead Field Montor
Demoldron Team Adm. Secretary
Saalelion Division
70 Employees
Sanitation Superintendent
Route Supervisor J
Recycling Coordinator
Pesticide Control Officer
Equipment Operator IV (8)
Equiptnerd Operator Al (15)
Equipment Operator II (2)
Refuse Coletlor (40)
................. I...................
Inmate (3)
Note: Highlighted positions identify responsible parties for measurable goals in section 4.1.
11
8u8ding 8 Grounds Dins
21 Empbyees
Building 6 Grounds Superntendent I
Budding Supervisor 1
Grounds Sup
Mahlenaace Techntctan II (3)
Bldg. S Grounds Crew Leader
Tree True*rw I
Equipment Operator IV (2)
Equipment Operator III
Equipment Operator II (2)
Equlprnent Operator I
Laborer(6)
Custodian I
............te(. .' ............
..s.
•
Fleet Maintenance Drvrslan
r 7 Employees
Fleet Maintenance Supedntendent I
Mechanic Supervisor 1
McOinic II (9)
Parts Manager
PainllBady Technrdan
Weki
Secretary I
Auto Service Worker (2)
......... ..... I—, .............
.....
Inmate (2)

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✓ 4.3. Signing Official
Name: Marvin W. Davis
Title: City Manager
Street Address: 201 Martin Luther King, Jr. Dr.
PO Box: 7207
City: Greenville
State: NC
Zip: 27834
Telephone: [phone]
Fax: [phone]
Email: m [e-mail].0
i
Signature:
✓ 4.4. Duly Authorized Representative {N/A}
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6. Reliance on Other Government Entity
6.1. Name of Entity: NCDENR-DWQ
6.2. Measure Implemented: Part of Construction Site Stormwater Runoff
Control; NPDES General Stormwater Permit for Construction Activities
6.3. Contact Information for Responsible Party
Contact Person: Jim Mulligan — Water Quality Supervisor
Contact Address: 943 Washington Square Mall
Washington, NC 27889
Contact Telephone Number: 252-946-6481
6.4 Legal Agreements
Are legal agreements in place to establish responsibilities: Yes, between
Land Quality and Water Quality for issuance of the general stormwater
permit along with the approved erosion control plan.
iM

i • •
7. Stormwater Management Program Plan
7.1 Public Education and Outreach on Storm Water Impact
'7.1.1. BMP's and Measurable Goals for Public Education and Outreach
BMP
Measurable Goals
Responsible Position/Party
YR.
YR.
YR.
YR.
YR.
1
2
3
4
S
(1�
Distribute pollution
Produce and distribute brochures, flyers, and
Public Works Department (PWD)
prevention brochures
utility bill inserts at least once a year. Will
City Engineer
include information on steps to reduce pollution
-
1500 Beatty Street
sources, proper disposal -of used oils and toxic
X
X
X
X
X
Greenville, NC 27834
materials, and awareness of illicit discharges.
phone: [phone]
The City will record the number of materials
Fax: [phone]
produced and distributed and the number of
people at events.
2
Distribute information
Produce and distribute stormwater information
Public Works Department (PWD)
booklet
booklet beginning the third year and continuing
City Engineer
on, that discusses the responsibility of citizens
X
X
X
1500 Beatty Street
and how they play a role in preventing future
Greenville, NC 27834
pollution. The City will track the number of
Phone: [phone]
booklets produced and distributed.
Fax: [phone]
(3
Informational Website
Develop and maintain a stormwater information
Public Works Department (PWD)
page for the existing internet website in the
City Engineer
third year of the program. Post information on
1500 Beatty Street
water quality, stormwater pollutants, and ways
X
X
X
Greenville, NC 27834
to minimize them. Provide Contacts for
Phone: [phone]
reporting and questions. The City will record the
Fax: [phone]
number-of-hits-to-the-website.
- - -
4
Education
Develop educational information on stormwater
Public Works Department (PWD)
Materials/Presentations
for schools and use in presentations to school
City Engineer
for Schools
age children. Present information in appropriate
1500 Beatty Street
forums at least once per year. The City will
X
X
X
Greenville, NC 27834
maintain a record of educational materials
Phone: [phone]
distributed and number of schools and classes
Fax: [phone]
information is given to.
15

t
•
•
BMP
Measurable Goals
YR.
1
YR.
2
YR.
3
YR.
4
YR.
S
Responsible Position/Party
/� 5)
Volunteer Group
Develop and conduct, on an annual basis, an
Public Works Department (PWD)
Outreach
educational campaign to inform area volunteer
City Engineer
organizations on stormwater pollutants, water
1500 Beatty Street
quality, and public reporting of illicit discharges
X
X
X
X
X
Greenville, NC 27834
as well as public involvement programs. The
Phone: [phone]
City will track the number of materials
Fax: [phone]
distributed and the number of groups spoken to
i 61
Distribute Informational
Develop an informational video program to
Public Works Department (PWD)
Video
educate the public about storm water issues,
City Engineer
problems and solutions to storm water
1500 Beatty Street
problems, and to generate awareness and
X
X
X
X
Greenville, NC 27834
interest in storm water management. The City
Phone: [phone]
will record the number of videos produced,
Fax: [phone]
distributed and shown.
a) C/j-
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16

-7.1.2. Target Audience:
The City's target audience will include all citizens. The City will actively
target neighborhood groups, professional organizations, industrial and
commercial associations, environmental groups, builders associations and
others that have an interest in this issue, including East Carolina
University and the Industrial Park.
7.1.3. Target Pollutant Sources: What pollutant source are you trying to address
and why? List the targeted pollutants and give a brief explanation as to
why these are selected:
Pollutant sources that the City will target include nutrient and fecal
coliform by ensuring proper septic system maintenance, insuring the
proper use and disposal of landscape and garden chemicals, and
disposing of used motor oil and household hazardous wastes.
The City will address pollutants such as sediment and trash by ensuring
the proper disposal of debris and the proper use of sediment and erosion
control measures.
✓ 7.1.4. Outreach Program: Write a narrative description of the approach you are
going to take in your outreach program.
The City's Outreach Program will be broad based. The overall objective is
to create an understanding of the City of Greenville's Stormwater
Management Plan as a service to its citizens and to 'educate the public on
maintaining and improving water quality for the future. The City will
begin by performing several different distributions of information to the
citizens that include bill inserts, flyers, and brochures that address
Stormwater and related issues. It will include Public Service
Announcements with press releases, City Page ads, and interviews with
local media.
The long term goals of the public education program will be to address
issues such as pollution prevention, volunteer programs, and
environmental issues. The City will create an informational video and
booklet about the responsibility of the citizens and how they play a role in
preventing future pollution of our waters and what they can do now. The
City will create and maintain a website on the City's web page to provide
information on water quality, storm water pollutants, and ways to
minimize them. It will also provide contacts for reporting problems and
asking questions. Key staff in the PWD/Engineering Division will visit local
schools in the City of Greenville to talk to school age children about the
importance of stormwater protection and its environmental effects. The
17

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City will incorporate volunteer organizations into the Outreach Program to
help distribute information to the general public.
" 7.1.5. Decision Process: Describe the decision process used to create this
program element.
The program was developed based on requirements of the Tar -Pamlico
Stormwater Rule as well as resources and programs currently available to
use by the City or proposed to be funded by the recently adopted
stormwater utility. Development of the stormwater utility was guided by
the Stormwater Advisory Committee.
7.1.6. Evaluation: Explain how you will evaluate the success of this minimum
measure, including the measurable goals for each of the BMPs.
The City will evaluate its Stormwater Management!Program annually to
ensure all measurable goals are being met and to plan strategies to
address -any differences identified. The review will include at least the
following positions within the City: Public Works Director, City Engineer,
Public information Officer, Manager of Engineering, and the Stormwater
Engineer.
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7.2. Public Involvement and Participation
•
'7.2.1. BMPs and Measurable Goals for Public Involvement and Participation
0
BMP
Measurable Goals
Responsible Position/Party
YR.
YR.
YR.
YR.
YR.
1
2
3
4
5
Storm Drain Stenciling
Ongoing Storm Drain Stenciling program with
Public Works Department (PWD)
C�
event days throughout the year and in
City Engineer
cooperation with Citywide Spring Cleanup
1500 Beatty Street
Program. This will help raise awareness about
X
X
X
X
X
Greenville, NC 27834
the connection of storm drains to receiving
Phone: [phone]
waters. The City will record the number of -
Fax: [phone]
stenciling volunteers and the number of
drains stenciled.
Environmental Advisory
An ongoing citizen advisory committee, which
Public Works Department (PWD)
Committee
meets monthly. Appointed by City Council to
Public Works Director
address environmental concerns within the
1500 Beatty Street
City of Greenville. This committee will provide
X
X
X
X
X
Greenville, NC 27834
involvement on program development
Phone: [phone]
pertaining to regulations and future projects.
Fax: [phone]
The City will maintain a record of meetings
held and the number of attendees.
3
Community Hotline
Establish and maintain a community hotline to
Public Works Department (PWD)
provide a means for concerned citizens and
Public Works Director
agencies to contact the appropriate
1500 Beatty Street
authorities when they see water quality
Greenville, NC 27834
problems. The City will record the number of
X
X
X
X
Phone: [phone]
calls received and the number of
Fax: [phone] _
problems/incidents remedied as a result of
the hotline calls.
Citizen Input
Public information meetings will be held
Public Works Department (PWD)
involving neighborhood groups, professional
Public Works Director
organizations, industrial and commercial
1500 Beatty Street
associations, environmental groups, builders
Greenville, NC 27834
association and others that have an interest in
X
X
X
X
X
Phone: [phone]
this issue. Public information meetings will be
Fax: [phone]
organized on a periodic basis to assist with
specific issues. The City will maintain a
record of meetings held and the number of
attendees.
19

•
7.2.2. Target Audience:
The City's target audience will include all citizens. The program will be set
up to allow and involve neighborhood groups, professional organizations,
industrial and commercial associations, environmental groups, builders
associations, and other entities that may have an interest in the
Stormwater Management Program.
7.2.3. Participation Program:
The public has been involved in the development of this program and
permit through the City's Storm Water Advisory Committee and the
Environment al Advisory Committee. The City's plan is to actively involve
the public in the development and implementation of the program with
the use of the Stormwater Advisory Committee which is a public based
committee. The City will also use the Environmental Advisory Commission
which is a citizen represented commission with slotted positions For
certain positions within the public. Public involvement will be further
developed through the Planning and Zoning Commission as well as City
Council which will require public hearings in order to pass new regulations
associated with implementation of the stormwater program.
7.2.3.1. Citizen Representation
Citizen representation will be accomplished through the
Stormwater Advisory Committee and the Environmental
Advisory Committee, which are citizen represented groups.
7.2.3.2. Public Meetings
It will be the City's policy to include public input in the
development of this program. This policy will be organized
to insure that the public is adequately informed and given
opportunities to comment concerning the City's
Stormwater Management Program. Public involvement
will be addressed through public hearings required as part
of any new regulations or ordinances created as a part of
the Stormwater Management Program. Public hearings
will occur at the Planning and Zoning Commission meeting
and City Council meetings.
7.2.3.3. Working with citizen volunteers
The City will also involve citizens through the Storm Drain
Stenciling Program. This program will solicit
20

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citizens of all ages, race, and economic background to
promote the protection of our surface waters while
providing public education for others.
7.2.4. Decision Process: Document your decision process for the development of
a storm water public involvement/participation program and the individual
BMPs, measurable goals, and responsible persons for your program.
The program was developed based on requirements of the Tar -Pamlico
Stormwater Rule as well as resources and programs currently available to
use by the City or proposed to be funded by the recently adopted
stormwater utility. Development of the stormwater utility was guided by
the Stormwater Advisory Committee.
✓ 7.2.5. Evaluation: Explain how you will evaluate the success of this minimum
measures, including the measurable goals for each Hof the BMPs.
The City will evaluate its Stormwater Management Program annually to
ensure all measurable goals are being met and to plan strategies to
address any differences identified. The review will include at least the
following positions within the City: Public Works Director, City Engineer,
Public information Officer, Manager of Engineering,! and the Stormwater
Engineer.
21

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7.3. Illicit Discharge Detection and Elimination
7.3.1. BMPs and Measurable Goals for Illicit Discharge Detection and Elimination
BMP
Measurable Goals
Responsible Position/Party
YR.
YR.
YR.
YR.
YR.
1
2
3
4
5
1
Failing Septic Systems
A plan will be developed to report failing
Public Works Department (PWD)
septic systems to the Pitt County Health
Public Works Director
Department. The City will log, report,
X
X
X
X
1500 Beatty Street
and follow through with the Health
Greenville, NC 27834
Department.
Phone: [phone]
h
Fax:[phone]
Illegal Dumping
Use brochures, flyers, and other
Public Works Department (PWD)
U
educational tools to educate the public on
Operations Manager
illegal dumping and inventory prime areas
1500 Beatty Street
of illegal dumping. The City will track the
Greenville, NC 27834
number of educational tools distributed,
X
X
X
Phone: [phone]
whether or not an inventory is completed
Fax: [phone]
of prime areas for illegal dumping, and
the number of penalties enforced upon
_
the participants of illegal dumping.
{ 3�
Storm Drain System Map
Develop a storm drain system map
Public Works Department (PWD)
�..
beginning in year one of this program.
City Engineer
The City will track the progress of the
X
X
X
1500 Beatty Street
storm drain system map.
Greenville, NC 27834
Phone:[phone]
Fax:_252-329-4535 -. .
Ordinance for illicit discharge
Develop and establish an ordinance
Public Works Department (PWD)
detection and elimination
within the first year to detect and
City Engineer
eliminate illicit discharges. The City will
X
X
X
X
X
1500 Beatty Street
record the development of this ordinance
Greenville, NC 27834
and the number of enforcement actions
Phone: [phone]
that occur as a result of the ordinance.
Fax: [phone]

r,
BMP
Measurable Goals
YR.
1
YR.
2
YR.
3
YR.
4
'
YR.
5
Responsible Position/Party
l-J
Identify illicit connections
Dry weather survey of 20% of the storm
Public Works Department (PWD)
through dry weather
drain system outfalls per year will be
City Engineer
screening ��asrar��q-�
conducted to identify non -storm water
1500 Beatty Street
flows. Areas with suspicious discharges
Greenville, NC 27834
will be investigated. The City will keep a
X
X
X
X
Phone: [phone]
record of the number of field tests
Fax: [phone]
conducted, the number of illicit
connections found, and the number of
illicit connections reported.
U'
Illicit discharge/illegal
Establish and maintain a hotline for
Public Works Department (PWD)
dumping hotline
citizens to report illegal dumping and
Public Works Director
suspicious discharges. The hotline will be
1500 Beatty Street
advertised in the City page, utility bill
X
X
X
X
Greenville, NC 27834
insert, website, etc. The city will record
Phone: [phone]
the number of calls to the hotline and the
Fax: [phone]
number of problems/incidents remedied
as a result of the hotline.
(-)-
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1l / s
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23

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7.3.2. Storm Sewer System map: Describe how you will develop a storm sewer
system map showing the location of all outfalls andk the names and
locations of all receiving waters. (What sources of information will you
use? ,What form will the map take (digital, paper map)? What method
will you use to verify the accuracy of the locations? Will you do field
verification and if so, will you use any specific technology? How will you
update the map, once data collection begins? Who will keep the map
current?
The map will be developed by using field surveys and existing information
developed through aerial mapping program as well as information
provided by NC Center for Geographic Information and Analysis
(NCCGIA). The system map will be digital. The accuracy of the location
will be identified by GPS. The map will be updated on an ongoing basis
as new development or construction occurs. The system map will be the
responsibility of the Public Works Department Engineering Division.
�7.3.3. Regulatory Mechanism:
Do you have an ordinance in place that prohibits non-stormwater from
your drainage system? No.
Describe your process for developing a regulatory mechanism and when
you plan on doing so.
The process for developing the City's regulatory mechanism will follow
the normal process of ordinance development. The first step being to
gather information on current regulations existing in other municipalities.
City staff will review those programs for suitability to the City of
Greenville. Meetings will be held with interested parties for input on the
development of the regulation along with draft reviews by pertinent
commissions. Once a final draft has been developed the proposed
regulation will be brought before the Planning and Zoning Commission
with the appropriate public advertisement and with a public hearing.
Once the regulation has been approved by the Planning and Zoning
Commission, it will then be taken in front of City Council. Once again this
hearing will be properly advertised to allow for citizen involvement in the
public hearing portion of the regulatory development. Once adopted by
council the regulation will be enacted and enforced.' The City plans on
beginning this process in the first year of the stormwater management
program.
'C 7.3.4. Enforcement: Describe the methodology you will use to take enforcement
actions needed when you find an illicit connection. Include process you
will follow if different from the method of adopting or amending your
current ordinance.
24

•
The methodology used to take enforcement action will be defined in the
ordinance as adopted by council and will be based on state statutes and
model ordinances.
7.3.5. Detection and Elimination: Describe your plan to detect and address
illicit discharges to your system including discharges from illegal dumping
and spills.
The City's plan will be to begin by identifying the location of dry weather
{p� discharges to the system through training of maintenance crews, building
�� inspectors and other staff likely to be in areas where discharges are likely
to occur and using visual observation, and pipeline schematics to track
identified flows. The City will use field screening of dry weather flows at
outfalls to aid in identifying illicit discharges.
The program will also involve developing methods to eliminate improper
connections and exploring alternative disposal options for discharges that
cannot be sent to the storm sewer system, such as using sanitary sewer
system or collecting and disposing of discharges off site at an approved
disposal facility.
The program will also document the elimination of illicit connections,
is including recording the location of the connection and the method used
to remove the connection. By documenting our procedures we will be
able to evaluate the effectiveness of our efforts.
7.3.6. Non Stormwater Discharges: Address the following categories of non -
storm water discharges or Flows only if you identify them as significant
contributors of pollutants to your small MS4:
Water line flushing
Allowable
Landscape irrigation
Allowable
Diverted stream flows
Allowable
Rising ground waters
Allowable
Uncontaminated ground water infiltration
Allowable
Uncontaminated pumped ground water
Allowable
Discharges from potable water sources
Allowable
Foundation drains
Allowable
Air conditioning condensation
Allowable
Irrigation water
Allowable
Springs
Allowable
.Water from crawl space pumps
Allowable
Footing drains
Allowable
Lawn watering
Allowable
Individual residential car Washing
Allowable
Flows from riparian habitats and wetlands
Allowable
25

De -chlorinated swimming pool discharges Allowable
Street wash water Allowable
✓ 7.3.7. You may also develop a list of other similar occasional incidental non-
stormwater discharges that will not be addressed as illicit discharges.
You must document in your SWMP any local controls or conditions placed
on the discharges and you must include a provision; prohibiting any
individual non-stormwater discharge that is determined to be contributing
significant amounts of pollutants to your MS4.
Charity Car Washes will be allowed. The City will evaluate the need to
regulate this activity in year one. If needed, the City will consider
regulating by limiting the frequency at which they occur and requiring
management of stormwater runoff.
r 7.3.8. Outreach: describe how you plan to inform public employees, businesses,
and the general public of hazards associated with illegal discharges and
improper disposal of waste:
Part of the outreach program will be to distribute brochures, flyers, and
bill inserts to educate homeowners and businesses about the proper
operation and maintenance of their septic systems to reduce the
likelihood of failure and on illegal dumping.
The plan also calls for establishing and maintaining a hotline for citizens
and businesses to report illegal dumping and suspicious discharges. The
hotline will be advertised in the City page, utility bill ,inserts, webpage, TV
and other sources.
x 7.3.9. Decision Process; Document your decision process for the development
of a storm water illicit discharge detection and elimination program and
the individual BMPs, measurable goals, and responsible persons for your
program.
The decision process used to create this program was based on existing
programs and processes currently in use as well as programs that could
serve as a dual purpose. Also considered were existing problems that
needed to be addressed such as illegal dumping and failing septic
systems. The responsible persons selected for these BMPs and
measurable goals are the ones currently responsible'for these or similar
programs currently in existence.
7.3.10. Evaluation: Explain how you will evaluate the success of this minimum
measure, including the measurable goals for each of the BMPs.
The City will evaluate its Stormwater Management Program annually to
ensure all measurable goals are being met and to plan strategies to
address any differences identified. The review will include at least the
26

•
following positions within the City; Public Works Director, City Engineer,
Operations Manager, Manager of Engineering, and the Stormwater
Engineer.
7.4. Construction Site Stormwater Runoff Control
The City of Greenville will rely on its locally delegated Erosion and
Sediment Control Program established June 8, 1978, and the DWQ
NPDES Stormwater Discharge Permit for Construction Activities to meet
the requirement of 7.4. as listed on this permit application.
27

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Gc nip! toL
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3
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AA
fa12 �4�Q�°�`�
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7.5. Post -Construction Storm Water Management in New Development and Redevelopment
✓ 7.5.8. BMPs and Measurable Goals for Post -Construction Storm Water Mana ement in New Develo ment and Redevelopment
BMP
Measurable Goals
Responsible Position/Party
YR.
YR.
YR.
YR.
YR.
1
2
3
4
5
1
Ordinance for Post
Develop and implement a stormwater
Public Works Department (PWD)
construction runoff
ordinance by March 10, 2005. The City
City Engineer
will adopt an ordinance that will
1500 Beatty Street
incorporate state standards for buffers
Greenville, NC 27834
and high density structural BMPs and will
Phone: [phone]
refer to the States BMP manual. The will
Fax: [phone]
also develop a program for maintenance
and inspection of structural runoff
controls in years two through five. The
city will record the development of the
ordinance and the number of
enforcement actions that occur as a result
of the new ordinance.
2
Education program for
Develop a workshop and educational
Public Works Department (PWD)
developers and the public
material in year one for developers and
City Engineer
the public on new
1500 Beatty Street
development/redevelopment stormwater
X
X
X
X
X
Greenville, NC 27834
responsibilities. The City will record the
Phone: [phone]
number of groups spoken to and the
Fax: [phone]
number of materials distributed.
3
Program to address sources
Develop an oversight program in year
Public.Works_Department (PWD)
of fecal coliform
three to coordinate with the Pitt County
Public Works Director
Health Department to educate
1500 Beatty Street
homeowners about the proper operation
X
X
X
Greenville, NC 27834
and maintenance of their septic systems
Phone: [phone]
and to allow for enforcement of failing
Fax: [phone]
systems.
,v.
28

✓ 7.5.9. Non Structural BMPs: Describe any non-structural BMPs in your program.
City staff will develop and propose policy and planning documents to address
post -construction storm water management in new development and
redevelopment.
Education programs for developers and the public will be used to educate
about project designs that minimize water quality impacts. Another measure
used will be source control measures often thought of as good housekeeping,
preventative maintenance, and spill prevention.
The City will develop a program, to the maximum extent practicable that will
control the sources of fecal coliform. The City will coordinate with the Pitt
County Health Department to develop and implement an oversight program
to ensure the proper response to failing septic systems, and the operation
and maintenance of these systems.
7.5.10. Structural BMPs: Describe any structural BMPs in your program.
The City will use the Division of Water Quality's Stormwater Best
Management Practices manual as a model document.
✓ 7.5.11, Regulatory Mechanism: describe the mechanisms you will use to address post
construction runoff from new developments and redevelopments and why did
you choose that mechanism. If you need to develop a mechanism, describe
your plan and a schedule to do so.
The City will use policies and ordinances to applicable projects to be
ermitted locall for stormwater management controls for either a low
density project or a high density project to the extent allowable under State,
1 Tribal or local law. The policies and ordinances chosen will allow involvement
from the public in the development of the City's program at the same time
allowing the municipality to set forth standards as defined by the State to
develop implement, and enforce this program.
The City at this time has existing stormwater regulations, but they do not
meet the minimum requirements outlined in the adopted
Rules; therefore, the City will amend existing regulations to address these
standards. Once the approval is obtained from the state, then the ordinance
will follow normal procedures for adoption by the City. This procedure
includes review by Planning and Zoning Commission along with a Public
hearing and then review and adoption by City Council along with a Public
Hearing. The City will then implement their program by March 10, 2005.
The City will develop a program, which will address
j development/redevelopment draining to Nutrient Sensitive Waters. The City
LP of Greenville is a community designated by the EMC to address nutrients in
1�
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29

•
e
�J
runoff into the Tar -Pamlico River Basin. The timeframe for implementation of
the Tar -Pamlico River Basin -Nutrient Sensitive Waters Management Strategy:
Basinwide Stormwater Requirements by the City are as follows:
February 13, 2004: Deadline for submittal of Local Stormwater Program
(including ordinances) to the Environmental Management
Commission.
August 13, 2004: Deadline for local governments to begin implementing
local Stormwater Programs.
✓ 7.5.12. Operation and Maintenance: describe how you will ensure the long term
operation and maintenance of your selected BMPs. Options to help ensure
that future 0&M responsibilities are clearly identified include an agreement
between you and another party such'as the post development land owners or
regional authorities.
The long-term operation and maintenance of the structural BMPs required by
the City's program will include an agreement between the City and the party
responsible for maintenance of the structure and a program that will include
requirement that the owner of a permitted structure shall submit annually a
maintenance inspection report on each structural BMP.
7.5.13. Decision Process: Document your decision process for the development of a
post -construction stormwater management program.
The program was developed based on requirements of the Tar -Pamlico
Stormwater Rule as well as resources and programs currently available to use
by the City or proposed to be funded by the recently adopted Stormwater
utility.
7.5.14. Evaluation: Explain how you will evaluate the success of this minimum
measure, including the measurable goals for each of the BMPs.
The City will evaluate its Stormwater Management Program annually to
ensure all measurable goals are being met and to plan strategies to address
any differences identified. The review will include at least the following
positions within the City: Public Works Director, Planning and Community
Development Director, City Engineer, Manager of Engineering, and the
Stormwater Engineer.
30

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7.6. Pollution Prevention/Good Housekeeping for Municipal Operations
7.6.1. BMP and Measurable Goals for Pollution Prevention/Good Housekeepinq for Municipal. Operations
BMP
Measurable Goals
Responsible Position/Party
YR.
YR.
YR.
YR.
YR.
1
2
3
4
5
LJ
Training program for grounds
Evaluate existing programs and develop
Public Works Department (PWD)
maintenance and landscaping
pollution prevention workshop for
Public Works Director
grounds maintenance and landscaping
1500 Beatty Street
employees trained to obtain reduction in
X
X
X
X
Greenville, NC 27834
fertilizer, pesticide, and water usage in
Phone: [phone]
year two. Will maintain records of the
Fax: [phone]
number of employees trained.
2�
Develop a spill prevention
Develop spill prevention and control
Public Works Department (PWD)
and control plan for
procedures in year two. Will keep record
Operations Manager
municipal facilities
of the number of persons trained in spill
1500 Beatty Street
response and the number of educational
X
X
X
X
Greenville, NC 27834
material distributed to municipal
Phone: [phone]
employees.
Fax: [phone]
3
Training program for fleet
Assess existing Fleet maintenance
Public Works Department (PWD)
maintenance
procedures and develop a pollution
Operations Manager
prevention workshop for employees
1500 Beatty Street
working with fleet maintenance.
X
X
X
X
X
Greenville, NC 27834
Distribute educational materials. Will
Phone: [phone]
record the number of employees that
Fax: [phone]_
attend the workshop and the number of
educational materials distributed.
4
Street cleaning
Continue the existing program in which all
Public Works Department (PWD)
city maintained streets are swept
City Engineer
annually. Will record the n umber of
X
X
X
X
X
1500 Beatty Street
street miles swept on an annual basis.
Greenville, NC 27834
Phone: [phone]
Fax: [phone]
31

✓ 7.6.2. Affected Operations; Specifically list your municipal operations that are
impacted by this operation and maintenance program. You must also
include a list of industrial facilities you own or operate that are subject to
NPDES General Stormwater Permits or individual NPDES permits for
discharges of stormwater associated with industrial' activity that ultimately
discharge to the MS4. Include the permit number and certificate of
coverage number for the facility.
The municipal operations that will be impacted by this operation and
maintenance program would be the following; the Street Maintenance
Division, Buildings and Grounds Division, Sanitation .Division, Fleet
Maintenance Division, Transit Division, and Recreation and Parks
Department Operation and Maintenance, which would include Bradford
Creek Municipal Golf Course.
List of Industrial Facilities Requiring Individual NPDES Permits
Existing City of Greenville Sand Pit- NCDENR- Division of Land Resources
Mining Permit # 74-9.
Greenville Utilities Wastewater Treatment Plant - NC0023931 NPDES Wastewater
Discharge Permit. Application for an industrial permit will be submitted by March
10, 2003, by the City of Greenville Utilities Commission.
Public Works Complex - Application for an industrial permit will be
submitted by March 10, 2003, by the City of Greenville.
✓ 7.6.3. Training: Describe any government employee training program you will
use to prevent and reduce stormwater pollution from activities such as
park and open space maintenance, fleet and building maintenance, new
construction and land disturbances, and storm water system
maintenance. Describe any existing available materials you plan to use.
Describe how this program will be coordinated with the outreach
programs developed for the public information minimum measure and the
illicit discharge minimum measure.
The City will conduct an initial -training program of all employees that are
actively involved in facility operations and routine orientation training of
new employees about storm water management; potential sources of
contaminants; reduction in usage of fertilizers, pesticides, and water
usage; and Best Management Practices to eliminate stormwater runoff
pollution. Operational employees will receive formal training and
information through brochures, flyers, posters, employee meetings,
bulletin boards, and with training that shows areas of'potential storm
water contamination and associated pollutants.
32

i
•
Through this training, the City will solicit ideas from employees on
methods to prevent storm water pollution and reward those who
participate in the program. This reward will tie in well with the City's
existing Award for Excellence Program that recognizes employees for
exemplary performance and innovative practices which promote public
service.
7.6.4. Maintenance and Inspections: Describe maintenance activities,
maintenance schedules, and long term inspection procedures for controls
to reduce floatables and other pollutants to your MS4.
Annual inspections are conducted by the Fire/Rescue Department to
identify unsafe conditions, including the potential for discharging of
hazardous materials. The City routinely conducts self inspections to
insure OSHA compliance. There are regular inspections and cleaning of
oil separators associated with Fleet Maintenance located at the Public
Works Complex. All paved areas within the Public Works Complex are
swept on a weekly basis. Litter patrol, on a weekly basis and as needed,
collects debris and/or litter at the Public Works Complex.
7.6.5. Vehicular Operations: Describe your controls for reducing or eliminating
the discharge of pollutants from municipal parking hots, maintenance and
storage yards, waste transfer stations, fleet or maintenance shops with
outdoor storage areas, and salt/sand storage locations and snow disposal
areas you operate.
As part of the City's controls for reducing discharge of pollutants it does
not permit steam cleaning wash water to enter the storm drain. Existing
wash pits for street maintenance and Sanitation are plumbed through a
separator to the wastewater sewer system. Vehicle and equipment
fueling is provided at a protected designated fueling area. All discharges
within Fleet Maintenance go through oil separators.,
Salt is stored in bags and under storage until needed. Waste from street
sweeping is stored on -site in a contained area until transferred to a
certified landfill.
A SWPPP for the Public Works Complex is under development and will be
applied within twelve months of issuance of the individual permit.
f7.6.6. Waste Disposal: Describe your procedures for the proper disposal of
waste removed from your MS4 and your municipal operations, including
dredge spoil, accumulated sediments, floatables, and other debris.
33

•
All waste produced and collected as a result of maintenance operations is
taken to a certified landfill, recycled, or spread and. stabilized
appropriately.
✓ 7.6.7. Flood Management Projects: Describe your procedures to ensure that
new flood management projects are assessed for impacts on water
quality and existing projects are assessed for incorporation of additional
water quality protection devices or practices.
The City will evaluate flood management projects for impacts on water
quality. The review will include at least the following positions within the
City: Public Works Director, City Engineer, Manager of Engineering, and
the Stormwater Engineer. Staff will access the project to see if it meets
the goals as outlined in the program and make suggestions if required.
7.6.8. Existing Ordinances: Describe your decision process for reviewing existing
ordinance for possible modifications to address stormwater issues.
The City will review existing ordinances for possible modifications to
address stormwater issues. The review will include at least the following
positions within the City: Public Works Director, Operations Manager, City
Engineer, Manager of Engineering, and the Stormwater Engineer.
7.6.10. Decision Process: Document your decision process for the development of
a pollution prevention/good housekeeping program for municipal
operations. Your rationale statement must address both your overall
pollution prevention/good housekeeping program and the individual
BMPs, measurable goals, and responsible persons for your program.
The City will establish procedures with City Operations to serve as a
model for business operations within the City of Greenville.
7.6.11. Evaluation: Evaluation: Explain how you will evaluate the success of this
minimum measure, including the measurable goals for each of the BMPs.
The City will evaluate its Stormwater Management Program annually to
ensure all measurable goals are being met and to plan strategies to
address any differences identified. The review will ,include at least the
following positions within the City: Public Works Director, City Engineer,
Operations Manager, Manager of Engineering, and the Stormwater
4DEngineer.
34

City of Greenville
Stormwater Management
Program
Greenville, North Carolina
J GR .
`ORPOPAtfO �
177 s
September, 2004
City of Greenville
Public Works Department
1500 Beatty Street
Greenville, NC 27834
Phone: [phone]
Mission Statement
The City of Greenville is dedicated to providing
all citizens with quality services in an open, ethical manner,
insuring a community of distinction for the futurc.

Fable of f Contents
EXECUTIVE SUMMARY 4
1. Introduction
-A. Background on the Tar -Pamlico Stormwater Rule------------------------- 5
1-13. Requirements of the Tar -Pamlico Stormwater Rule ....................................... 6
1-C. Applicability of the Tar -Pamlico Stormwater Rule 7
2. New Development
2-A.
Requirements in the Rule
9
2-13.
Protecting Riparian Areas on New Development -------------------------------------------
1-0
2-C.
Calculating Nutrient Export from New Development.---------------------------------
10
2-D.
BMPs for Reducing Nitrogen and Phosphorus.....__ .....................................
1.2
2-E.
Calculating Peak Runoff Volume--------------------------- ---.-----_--_--_
--------_---- 15
2-F.
Offsite Partial Offset Option-- -------- --------
17
2-G.
Regional or Jurisdiction -Wide Approaches--------------- -
18
2-H.
BMP Maintenance -----------------------------------------------------------------------------------------------
19
2-I.
Land Use Planning Provisions --------------
19
3. Illicit Discharges
3-A.
Requirements in the Rule ---_----_--_
-----_-_-21
3-B.
What is an Illicit Discharge?------------------------------------------------------------
21
3-C.
Establishing Legal Authority-------------------------------------------------------------------------22
3-D.
Collecting Jurisdiction -Wide Information-----------------------------------------------------22
3-E.
Mapping and Field Screening in High Priority Areas ..............................
23
3-F.
Identifying and Removing Illicit Discharges.................................................25
3-G.
Preventing Discharges and Establishing a Hotline .. ......... .........
.............26
3-H.
Implementation Schedule
4. Retrofit Locations
4-A.
Requirements in the Rule_______________________
..-•_ 28
4-13.
Approach for Meeting Requirements... .................. I ---------------------------------------
28
4-C.
Data Collection and Notification
28
4-D.
Mapping Requirements ....................................................................................
29
5. Public
Education
5-A.
Requirements in the Rule
_31
5-B.
Public Education Action Plan
31
6. Reporting Requirements
6-A.
New Development Review/Approval.----------------------
----------------------32
6-13.
Illicit Discharges------------------------------------------------------
32
6-C.
Retrofit Locations
33
6-D.
Public Education
33
:ODMAIPCDOCSICOGV 86342\1 2

Appendices
Appendix A 15A NCAC 213 .0258 Tar -Pamlico River Basin - Nutrient Sensitive
Waters Management Strategy: Basinwide Stormwater Requirements
Appendix B Export Calculation Worksheets
Appendix C Land Use Planning and Design Techniques
Appendix D BMP Operation and Maintenance Agreement
Appendix E Chapter 9 "Stormwater Management And Control" of Title 9 the City of
Greenville Code of Ordinances
Appendix F Screening Report Forms
Appendix G Public Education Action Plan and Report
Appendix H Timeline for City of Greenville NPDES Phase 11 Comprehensive
Stormwater Plan (Year 1)
::0DMAIPCD0CSIC0G1186342\1 3

EXECUTIVE SUMMARY
In accordance with the State's rule, "I SA NCAC 2B .0258 Tar -Pamlico River Basin —Nutrient
Sensitive Water Management Strategy: Basinwide Stormwater Requirement," the City of
Greenville developed a Stormwater Management Program. The purpose of this Program is to
help improve water quality in the Tar -Pamlico River Basin. The City's jurisdictional
boundaries also extend into the Neuse River Basin. Figure l presented in the City's
"Stormwater Management Program" is a general representation of which areas of the City are
located within the Tar -Pamlico River Basin and which are within the Neuse River Basin. It
also identifies the city limits and the City's extra territorial jurisdiction (ETJ).
As part of its program, the City amended Chapter 9 "Storm Drainage" of Title 9 "Building,
Planning, and Development Regulations" located in the "Code of Ordinances" for the City of
Greenville. This chapter is now referred to as "Stormwater Management And Control". This
ordinance is presented in the program's appendices.
Those requirements as set forth by the Tar -Pamlico Rule will be applicable to that portion of
the City of Greenville located within the Tar -Pamlico River Basin. For areas of the City's
ETJ located within the Tar -Pamlico River Basin, the City will apply the requirements of its
program to the extent authorized under State statutes that govern municipality operations in its
ETJ. Under State statutes, the City is authorized to perform inspections and report violations
within its ETJ to the appropriate County and State authorities. As areas within it's ETJ are
annexed into the city limits, the City will be able to enforce these requirements. Those areas
of the city and its ETJ located within the Neuse River Basin will be subject to the
requirements of this ordinance and program, with the exception of having to meet the
requirements for controlling phosphorus releases.
The City's Stormwater Management Program is to be administered by the Engineering
Division of the Public Works Department. and will be managed by the City Engineer. The
City's Stormwater Utility will fund this program. The Engineering Division is responsible for
implementation of the program's various elements. The City of Greenville was identified as a
NPDES Phase II community. Many of the programs that the City is developing to meet the
Phase Il requirements will be applied towards those of the Tar -Pamlico Rule.
As part of this program, the City will administer a public education prograrn, addressing
residents within and outside Greenville's city limits. The major components of the City's
Stormwater infrastructure located within the city limits will be mapped as part of the City's
NPDES Phase II program, which is to begin in the second year of the City's NPDES Phase II
permit. As areas located within the ETJ are annexed into the city limits, the stormwater
infrastructure located within these areas to be maintained by this City will be mapped
following annexation. The City has started evaluating retrofit opportunities. As presented in
the Stornwater Management Program, the City of Greenville will also begin the development
of its program to address illicit discharges. The implementation schedule for this component
is presented within this program.
In Summary, the overall program objective is to improve the water quality of stormwater run-
off that enters the natural waters located in and outside of the City of Greenville.
DDM ATC DOCWOGU 3634 211 4

I. Introduction
In accordance with the States rule, "15A NCAC 213 .0258 Tar -Pamlico River Basin —Nutrient
Sensitive Water Management Strategy: Basinwide Stormwater Requirement," the City of
Greenville has developed a stormwater management program,
I A. Background on the Tar -Pamlico Stormwater Rule
The Tar -Pamlico River Basin begins in Piedmont North Carolina and extends approximately
180 miles through the Coastal Plain to Pamlico Sound. Together, Pamlico Sound and
neighboring Albemarle Sound constitute one of the most productive estuarine systems in the
country. The 5,400 square mile Tar -Pamlico basin is comprised primarily of agricultural and
forest land and many smaller municipalities. Despite the rural character of the basin, in the
mid-1970's the Pamlico River estuary began to see increasing frequencies of harmful algal
blooms, fish kills, and other nutrient -related problems.
By the mid- 1980's, the state began to consider actions to control nutrient inputs to the estuary.
Those actions have included the following:
Phase I: In 1989, the North Carolina Environmental Management Commission (EMC)
designated the entire basin "Nutrient Sensitive Waters." The first -phase of management
through 1994 focused primarily on point sources, establishing an annually decreasing nutrient
loading cap for an association of dischargers, and an innovative "trading" program that
allowed dischargers to achieve reductions in nutrient loading more cost-effectively.
PCS Recycling: In 1992, a phosphate mining company then known as Texas Gulf, which is
located on the Pamlico River estuary, instituted a wastewater recycling system that reduced its
phosphorus discharges to the estuary by 93 percent.
Pliase II: Modeling of estuary conditions showed that despite the gains made to that point,
significant reductions in nitrogen and phosphorus loading were still needed to restore water
quality standards and minimize the recurrence of harmful algal blooms. The second phase of
the nutrient strategy, which runs through 2004, established a biologically based goal of 30
percent reduction in nitrogen loading from 1991 levels and holding phosphorus loading at
1991 levels. Load reductions were apportioned among point sources and the major nonpoint
sources. The point sources were given steady annual nitrogen and phosphorus loading caps.
A program was designed with the nonpoint sources to achieve the goals through voluntary
measures. After two years of voluntary implementation, the 1 MC found insufficient progress
and called for rules for nonpoint sources.
Rules: Beginning in 1998, Division of Water Quality (DWQ) staff conducted a lengthy public
input process to evaluate source categories and develop rules where needed. Over the course
of 2000, the CMC adopted rules for agriculture, fertilizer applicationi across all land uses,
urban stormwater, and rules to protect the nutrient removal functions of existing riparian
buffers. These rules were modeled after a similar set of rules recently adopted in the adjacent
Ncuse River Basin. The Neuse rules were given extensive public review and modification,
:01)MATCDOCSICOGI18634211 5

and the Tar -Pamlico rules similarly received extensive scrutiny. The resulting rules provide
increased flexibility for the regulated community while maintaining the focus of the nutrient
reduction goals.
I-B. Requirements of the Tar Pamlico Stormwater Rule
The Tar -Pamlico Stormwater Rule identifies the City of Greenville as one of the local
governments with the greatest likelihood of contributing significant nutrient loads to the
Pamlico estuary. The EMC may designate additional local governments in the future through
rule amendment based on criteria given in the rule.
The affected local governments are
Municipalities
Counties
Greenville
Beaufort
Henderson
Edgecombc
Oxford
Franklin
Rocky Mount
Nash
Tarboro
Pitt
Washington
For these local governments, only their geographic areas that fall within the Tar -Pamlico
River Basin are subject to the rule. Part of The City of Greenville's jurisdiction is located
with this Basin. Figure 1 in Section l-C identifies which portion of the City and its
extraterritorial jurisdiction is located within the Tar -Pamlico River Basin, in subject counties,
applicable areas are those under the direct jurisdiction of the counties, which would not
include incorporated cities, towns, or villages within county jurisdictional limits. Cities and
counties are encouraged to coordinate to establish implementation responsibilities within
municipal extraterritorial jurisdictions. Counties administering development regulations by
interlocal agreement on behalf of municipalities would implement the rule within only those
municipalities that arc subject to the rule. The activities of state entities within subject local
governments would be subject to the rule.
The rule establishes a broad set of objectives for limiting nutrient runoff from urban areas and
then lays out a set of specific elements that the City of Greenville has included in its program.
Timeframes for implementation of the rule are as follows:
April 1, 2001: Effective date of the rule.
February 13, 2003: Target date for approval of the Model Stormwater Program by the
Environmental Management Commission (modified through EMC
approval from the date of April 1, 2002, established in the rule).
February 13, 2004: Deadline for submittal of local Stormwater Programs (including
ordinances) to the EMC (modified as above).
August 13, 2004: Deadline for local governments to begin implementing local
Stormwater Programs (modified as above).
::0DMATCDOCSTOGU8634211 6

Following implementation in August 2004, the City of Greenville is, required to make annual
progress reports to the EMC that will include nitrogen and phosphorus loading reduction
estimates.
The elements that must be included in the City of Greenville's management program are:
1. New Development Review/Approval
New development is required to meet the 30 percent reduction goal through site planning and
best management practices. The rule imposes a 4.0 pounds per acre per year (lb/ac/yr)
nitrogen loading limit and a 0.4 lb/aclyr phosphorus loading limit on new development.
Proposals that exceed these performance standards may partially offset their load increases by
treating existing developed areas offsite that drain to the same stream.
New development shall avoid causing erosion of surface water conveyances. At minimum,
post -development peak flows leaving the site may not exceed pre -development for the I -year,
24-hour storm event. The rule provides the City of Greenville with the option of using
regional stormwater facilities to help meet nutrient loading and attenuation requirements
under certain circumstances.
2. Illicit Discharges
Illicit discharges are substances deposited in storm sewers (that lead .to streams) that should
instead be handled as wastewater discharges. Illicit discharges may contain nitrogen. The
City of' Greenville will develop and implement a program to identify, remove, and prevent
illicit discharges.
3. Retrofit Locations
There are a number of funding sources available for water quality retrofit projects such as the
Clean Water Management Trust Fund and the Wetland Restoration Program that the NC
General Assembly has recently established. To assist technical experts; the City of Greenville
is required to identify sites and opportunities for retrofitting existing development to reduce
total nitrogen and phosphorus loads.
4. Public Education
Citizens can reduce the nitrogen pollution coming from their lawns and septic systems if they
understand the impacts of their actions and respond with appropriate management measures.
The City of Greenville shall develop and implement public and developer education programs
for the Tar -Pamlico basin.
I-C. Applicability of Tar -Pamlico Stormwater Rule
Figure 1 identifies which areas of the City are within the Tar -Pamlico River Basin and which
are within the Neuse River Basin. It also identifies the current city limits and the City's
extraterritorial jurisdiction (ETJ). Those requirements as set forth by the Tar -Pamlico Rule
will be applicable to the portion of Greenville's city limits located within the Tar -Pamlico
River Basin under its "Stormwater Mananement and Control" ordinance. For areas of the
City's ETJ located within the Tar -Pamlico River Basin, the City will apply the requirements
of its program to the extent authorized tinder State statutes that govern municipality operations
:0DMA\PCDOCs1COG1196342\1 7

in its ETJ. Under State statutes, the City is authorized to perform inspections and report
violations within its ETJ to the appropriate County and State authorities. Those areas of the
City and its ETJ located within the Neltse River Basin will be subject to the requirements of
this ordinance and program, with the exception of having to meet the requirements for
controlling phosphorus releases. As areas within it's ETJ are annexed into the city limits, the
City will be able to enforce these requirements.
City of Greenville - North Carolina
4�
Legend
Extraterdtorial Jurisdiction
Inside City Limits
♦��♦ Division of Tar -Pamlico! Neuse River Basins
♦ 4
♦ 'A
C
O
•
FIGURE 1
:0DMA1PCDOCS1COG1186342%1 8

2. New Development Review/Approval
2 A. Requirements in the Rule
The Tar -Pamlico Stormwater Rule has the following requirements for new development
located within that portion of the City of Greenville and its ETJ within the Tar -Pamlico River
Basin (Please refer to Appendix A for complete language):
❑ The nitrogen load contributed by new development activities is held at 4.0 pounds per
acre per year. This is equivalent to 70 percent of the estimated average nitrogen load
contributed by non -urban areas in the Tar -Pamlico River Basin (as defined using 1995
LANDSAT data). Similarly, the phosphorus load contributed by new development
activities is held at 0.4 pounds per acre per year, which is equivalent to the estimated
average phosphorus load contributed by non -urban areas in the basin. The Environmental
Management Commission may periodically update these performance standards based on
the availability of new scientific information.
❑ Property owners shall have the option of partially offsetting projected nitrogen loads by
providing treatment of existing developed areas off -site that drain to the same stream.
However, the total nitrogen loading rate cannot exceed 6.0 pounds per acre per year for
residential development or 10 pounds per acre per year for non-residential development.
❑ There is no net increase in peak flow leaving the developed site from the predevelopment
conditions for the 1-year, 24-hour storm.
a The City of Greenville will review new development plans to assure compliance with
requirements for protecting and maintaining riparian areas as specified in 15A NCAC 2B
.0259.
The City of Greenville may include regional stormwater facilities in their programs to provide
for partial nutrient and Flow control. Such facilities may not degrade surface waters. This is
further discussed under Section 2-G.
To comply with the aforementioned requirements, the City renamed and amended Chapter 9
"Storm Drainage" of Title 9 "Building, Planning, and Development Regulations" located in
the "Charter and Code of Ordinances" for the City of Greenville, an'd this chapter is now
referred to as "Stormwater Management And Control", which is presented in Appendix E).
The Engineering Division of the Public Works Department is responsible for reviewing plats
and plans for private developments for compliance with the "Building ,Planning, and
Development Regulations" Ordinance. Once the Engineering Division has completed its
review and determines them to be in compliance, the documents are forwarded to the Planning
Division for development permit issuance.
:01)MA11'000CSICOGA186342\1 9

During this review process, review comments for each plat or plan is entered into a Land
Development Tracking System. On a quarterly basis, data on approved projects will be
retrieved from the Land development Tracking System. This data will be used to generate
annual reports to DWQ on Nitrogen and Phosphorus loading from new development projects.
2-B. Protecting Riparian Areas on New Development
The Tar -Pamlico Riparian Buffer Protection Rule, 15A NCAC 2B .0259, requires the City of
Greenville to ensure that riparian areas on new developments are protected in accordance with
the buffer rule's provisions. The buffer rule requires that 50-foot riparian buffers be
maintained on all sides of intermittent and perennial streams, ponds, lakes and estuarine
waters in the basin. The buffer rule provides for certain "allowable" uses within the buffer
with DWQ approval such as road and utility crossings.
The City of Greenville shall disapprove any new development activity proposed within the
first 50 feet adjacent to a waterbody that is shown on either the USGS 7.5 minute
topographic map or the NRCS Soil Survey map unless the owner can show that the
activity has been approved by DWQ. DWQ approval may consist of the following:
❑ An on -site determination that surface waters are not present.
❑ An Authorization Certificate From DWQ for an "allowable" use such as a road crossing
or utility line, or for a use that is "allowable with mitigation" along with a Division -
approved mitigation plan. A table delincating such uses is included in the buffer rule.
❑ An opinion from DWQ that vested rights have been established for the proposed
development activity.
❑ A letter from DWQ documenting that a variance has been approved for the proposed
development activity.
2-C. Calculating N and P Export from New Development
New Development Described. For the purposes of the City of Greenville's Stormwater
Management Program, new development shall be described to include the following:
❑ Any activity that disturbs greater than one acre of land to establish, expand, or replace a
single family or duplex residential development or recreational facility. For individual
single family residential lots of record that are not part of a larger common plan of
development or sale, the activity must also result in greater than ten percent built -upon
area.
❑ Any activity that disturbs greater than one-half an acre of land to establish, expand, or
replace a multifamily residential development or a commercial, industrial or institutional
facility.
DDMAIPCDOCSICOGU 96342\1 1O

❑ Projects meeting the above criteria that replace or expand existing structures or
improvements and that do not result in a net increase in built -upon area shall not be
required to meet the basinwide average non -urban loading levels.'
o Projects meeting the above criteria that replace or expand existing structures or
improvements and that result in a net increase in built -upon area shall achieve a 30
percent reduction in nitrogen loading and no increase in phosphorus loading relative to
the previous development. Such projects may achieve these loads through onsite or
offsitc measures or some combination thereof.
■ Multi -family residential, commercial, industrial, and institutional projects may choose
to achieve all of this reduction by providing treatment of off -.site developed areas, or
by permanently conserving land from future development in conformance with the the
City of Greenvil le's approved land conservation plan as described in Section 2-G.
■ Alternatively, any project that is subject to the above loading requirements and that is
located within an area that the City of Greenville has established for redevelopment,
as characterized here, in a pattern conducive to the goals of the Tar -Pamlico nutrient
strategy, may not be required to achieve those nutrient reductions if the project meets
certain conditions that are established for that area as follows:
- A "fix it first" policy that reserves public funds for repair of existing
infrastructure in these areas before investing in new infrastructure of the same
type in new growth areas.
- Mixed use/mixed density zoning provisions.
- Retrofits are consistent with NCDOT definitions for pedestrian scale in traditional
neighborhood developments (e.g., 80% of users are within a '/4 mile walk from
schools, libraries, and recreational/athletic facilities, 60% of students and 50% of
teachers are within '/2 mile walk from schools, and 40% of congregants are within
'/4 mile of churches).
- Parking maximums or shared parking ratios.
- Residential density bonuses where parking maximums, pedestrian scale, or "fix it
first" are proposed.
❑ Built -upon area means that portion of a development project that is covered by
impervious or partially impervious cover including buildings, pavement, and gravel area.
Slatted wooden decks and the water surface area of pools shall be considered pervious.
a band disturbance is defined as grubbing, stump removal, grading, or removal of
structures.
New development shall not include agriculture (including intensive livestock operations),
mining, or forestry activities.
Vested Rights: All site plans and preliminary plats for new development projects that have
received approval from the City of Greenville prior to the effective date of this program
(September 10, 2004) and that have implemented that development in. accordance with the
City of Greenville's vesting provisions shall be exempt from the requirements of the Tar-
::ODMA%PCn0CSIC0G11B634211 I ]

Pamlico Stormwater Rule. Vesting provsions and timelines shall be incordancc with Section
9-4-34 of the City of Greenvile Code of Ordinances for site plans and Section 9-5-41 for
preliminary plats.
Projects that require a state permit, such as landfalls.. NPDES wastewater discharges, land
application of residuals and road construction activities shall be considered exempt if a state
permit was issued prior to the effective date (September 10, 2004) of the City of GreenviIle's
Storarlwater Management Program.
Calculating N and P Export: The nitrogen and phosphorus export from each new
development must be calculated. This export will be calculated in pounds per acre per year
(lbs/ae/yr). Worksheets to carry out this method are provided in Appendix B.
It is expected that some values provided in the methodology will be refined over time. The
Division of Water Quality plans to provide those refinements to the City of Greenville on a
periodic basis as they are established. For example, additional research may lead to refined
export values for the various urban land covers, particularly rooftop and transportation
impervious surface. Also, stonnwater management practices are typically in various stages of
refinement around the country. Several nutrient reducing BMPs are being applied and studied
around North Carolina toward better designs and more accurate knowledge of long-term
nutrient removal efficiencies. The City of Greenville will incorporate these refinements into
its program from time to time as they are substantiated.
For a given project, the methodology calculates a weighted annual load export for both
nitrogen and phosphorus based on event mean concentrations of runoff from different urban
land covers and user-supplicd acreages for those land covers. The user chooses BMPS that
reduce the export to rule -mandated levels. Two versions of the spreadsheet were developed
based on rainfall differences; one (the "Piedmont" version) for the jurisdictions of Oxford,
Henderson, Rocky Mount, and Tarboro, and the counties of Franklin, Nash, and Edgecombe,
and the other (the "Coastal Plain" version) for the remaining communities.
A residential workshect is also provided in Appendix B to calculate acreages dedicated to
different land covers in residential developments where impervious footprints are not shown.
One situation not addressed by the methodology is a non-residential subdivision where the
impervious surfaces arc not shown on the plans at the time of submittal. In this case, the
applicant shall determine a worst -case scenario for the areas of impervious surface and
managed open space for the type of development specified and then apply the methodology.
This determination shall be presented on the preliminary plat as part of its approval.
2-D. BMWs for Reducing Nitrogen and Phosphorus
The Tar -Pamlico Stormwater Rule requires that all new developments achieve a nitrogen
export of less than or equal to 4.0 (and a phosphorus export of less than or equal to 0.4 pounds
per acre per year. If the development contributes greater than 4.0 pounds nitrogen (or 0.4
pounds phosphorus), then the following options exist.
ODMAIPCDOCS�COC I86342V 12

For residential (or commercial or industrial) development:
a If the computed nitrogen export is greater than 6.0 (or 10.0) lbs/ac/yr, then the owner
must either use on -site BMPs or take part in an approved regional or jurisdiction -wide
stormwatcr strategy or some combination of these to lower the nitrogen export to at least
6.0 (or 10.0) Ibs/ae/yr. The owner may then use one of the following two options to
reduce nitrogen from 6.0 (or 10.0) to 4.0 lbs/ac/yr.
❑ If the computed nitrogen export is greater than 4.0 lbs/ac/yr but less than 6.0 (or 10.0)
Ibs/ac/yr, then the owner may either:
■ Install BMPs onsite or take part in an approved regional or jurisdiction -wide
stormwater strategy or some combination of these to remove nitrogen down to 4.0
Ibs/ac/yr,
■ Provide treatment of an offsite developed area that drains to the same stream to
achieve the same nitrogen mass loading reduction that would have occurred onsite.
a The owner must install BMPs that also achieve a phosphorus export of less than or equal
to 0.4 Ibs/ac/yr but may do so through on -site or offsite measures or sonic combination
thereof.
As with most resource impacts, an ounce of stormwater prevention is worth a pound of cure.
A sound site planning process first considers the ability to achieve the needed reductions using
site design measures that avoid or minimize runoff to begin with. These planning measures
include reducing, disconnecting, and rerouting impervious surfaces, maximizing time of
concentration for stormwatcr, and protecting open spaces for infiltration and
evapotranspiration. More detail on planning measures that reduce hydrologic and nutrient
loading is given in Appendix C.
Often, structural management practices cannot be avoided. BMP selection is an important and
challenging craft. Available data indicate that most BMPs remove only 20 to 40 percent of
total nitrogen or phosphorus on a consistent basis. There arc a number of issues to consider to
ensure this sustained performance. It is crucial to consider the issues of aesthetics, long-term
maintenance, safety, and reliability in BMP design. All BMPs require regular maintenance
and some have varying performance depending on soil type and season. The efficiencies
provided below and in the load calculation worksheets in Appendix B assume correct sizing
and other design per the referenced manuals and optimum performance based on regular,
effective maintenance as well as proper siting of the practices.
The BMPs available for nutrient reduction and their removal rates based on current literature
studies are provided in Table 2 below. These median values are based on a literature review
conducted by a contractor that updated Neuse nitrogen efficiencies and established
phosphorus values. Also provided in the table are the design standards to be adhered to in
permitting BMP design.
The design of Best Management Practices that remove nitrogen and phosphorus from
stormwatcr is a developing field. Researchers throughout the country, particularly in the
Southeast, are conducting studies to identify and refine effective means of controlling nitrogen
::ODMA%PCI)OCSICOC1186342%] 13

and phosphorus. As stated in Section 2-C, the Division of Water Quality plans to provide
refinements in the stated BMP removal efficiencies to the City of Greenville on a periodic
basis as they are substantiated.
Table 2: BMP Types, TN and TP Removal Rates, and Design Standards
BMP Type
TN Removal
Rate per
Literature
Review
TP Removal
Rate per
Literature
Review
Appropriate Design Standards
Wet detention onds
25%
40%
NC Design Manual
Constructed wetlands
40%
35%
NC Design Manual
Restored riparian buffers
30%
30%
Tar -Pamlico Riparian Buffer Rule
15A NCAC 2B .0259
Grass Swales
20%
20%
NC Design Manual
Vegetated filter strips
with levels reader
30%
30%
NC Design Manual (*) and other literature
information
Bioretention raingardens)
40%
35%
NC Design Manual
Sand Filters
35%
45%
NC Design Manual '
Proprietary BMPs
Varies
Varies
Per manufacturer subject to DWQ aperoval
Other BMPs
Varies
Varies
Subject to DWQ a roval
(') The North Carolina Department of Environment and Natural Resources, Division of Waler Qualii.r. Water QuaNty
Section, Stornnivier Best Management Practices Manual, 1999, and all amendments
Multiple BMPs: The worksheet provides calculation space for the case where more than one
BMP is installed in series on a development. It determines the removal rate through serial
rather than additive calculations. This is important to understand in projects where the
automated worksheet is not used to estimate the effect of multiple BMPs.
As an example, if a wet detention pond discharges through a restored riparian buffer, then the
removal rate shall be estimated to be 47,5 percent, determined as follows: The pond removes
25 percent of the influent nitrogen mass and discharges 75 percent to the buffer. The buffer
then removes 30 percent of the remaining 75 percent of the original nitrogen amount that
discharged from the pond, or 22.5 percent of the original influent amount. The sum of 25 and
22.5 is 47.5. The removal rate is NOT 25 percent plus 30 percent.
Assigning Values to Pervious Cover: Large -lot residential development may involve
substantial open space that, at least initially, may remain in an undisturbed wooded or
reforesting condition. While it may seem logical to enter this acreage as wooded pervious,
without conservation casements or some other mechanism for ensuring protection of these
areas, the City of Greenville has no control over their eventual condition. Thus, unless
specific protection instruments, such as conservation easements, are established and provided
in the development application or by the City of Greenville, lot areas shall be assigned the
lawn/landscape managed pervious export rate. The worksheet will do this automatically.
Riparian buffers protected under the Tar -Pamlico Riparian Buffer Protection rule, 15A NCAC
2B .0259, are divided into two zones, moving landward from the surface water, that are
afforded different levels of protection. Zone I, the first 30 feet, is to remain essentially
undisturbed, while zone 2, the outer 20 feet, must be vegetated but may be managed in certain
:0DMATCi30CSVCOM] 86342\1 14

ways. The user shall enter the acreage in zone 1 into the worksheet as wooded pervious, while
-none 2 acrage shall be entered as managed pervious (lawn/landscape).
2-E. Calculating Peak Runoff Volume
The Tar -Pamlico Stormwater Rule requires that new development not cause erosion of surface
water conveyances. At a minimum, new development shall not result in a net increase in peak
flow leaving the site from pre -development conditions for the 1-year, 24-hour storm event. A
number of Neuse local governments sought to use the 2-year rather than the ]-year storm as
the design storm for peak flow control given that the 2-year storm is more consistent with
current hydrologic modeling methodologies.
The main reason that the rule requires a 1-year design storm for peak flow control is to protect
stream channels from erosion. Development on land causes many changes in stormwater
hydrology. One of the major causes of streambank erosion in urban streams is the increase in
the frequency of the bank full -flooding event. The bankfull-flooding event generally occurs at
approximately a 1.5-year frequency. The Tar -Pamlico Stormwater Rule requires control of
the ]-year storm to predevelopment levels to insure that the rate of release will be below
bankfull and therefore less erosive to the stream channel. Releasing the 2-year storm at
predevelopment levels would likely have the effect of increasing the frequency of a storm that
is just a bit larger than the most erosive storm.
Protecting streambanks from erosion is a crucial part of the ovcrall iTar-Pamlico Nutrient
Sensitive Waters Management Strategy. Riparian buffers are protected under this program
because in most situations they are effective at removing nitrogen resulting from nonpoint
source pollution. The use of nitrogen reducing BMPs on new development does not obviate
the need to maintain valuable riparian buffers.
In the Ncusc process, DWQ staff devised a strategy, which is incorporated here, to allow use
of the 2-year design storm while also providing a similar level of protection for streambanks
as the use of the.l-year design storm. The strategy is to give the City of;Grcenville the option
of using the 2-year storm as the design storm for peak flow control; however, requiring that it
be controlled to the pre -development levels of the 1-year storm. This can be done by
computing the peak flow associated with the 2-year storm for pre -development conditions and
then reducing it by an appropriate percentage to reflect the difference between the 1-year and
2-year storm peak flows. The City of Greenville will allow either of the following two
options: ,
Option 1: Use the 1-year Design Storm
The US Weather Bureau (Technical Paper 40) published maps of rainfall depths for the l-year
storm of duration 30 minutes to 24 hours. The l-year, 24-hour precipitation, varies along the
Tar -Pamlico River Basin. For the City of Greenville, the amount of'precipitation for a I -year,
24-hr storm is 3.4 inches.
The Rational Method is an acceptable method for estimating peak discharge in the design of
stormwatcr facilities for relatively small watersheds (up to 50 acres). The basic equation is:
::ODMATCDOCSVCOC I803a2\1 15

Q = CIA
Where: Q is the peak flow for the design storm in cubic feet per second
C is the coefficient of runoff based on land cover (dimensionless)
I is the storm intensity in inches per hour
A is the drainage area in acres
The rational equation is based upon the assumption that rainfall is uniformly distributed over
the entire drainage area at a steady rate, causing the flow to reach a maximum at the outlet of
the watershed at a time to peak, Tp. - The Rational Method typically gives a conservative
estimate of runoff.
In order to use the Rational Method to determine peak flows, it is necessary to compute the
storm intensity in inches per hour for the 1-year storm. The intensity is computed by the
formula:
I = g/(h+T)
Where: l is the storm intensity in inches per hour
g and h are empirically derived constants
T is the duration in minutes (or (L3/H)0.385)/128)
The values for constants g and h for the 1-year storm are not presently available. The
appropriate values for g and h were estimated by graphing the 2, 5, 10, 25, 50 and 100-year
values of g and h for Wake and Wilson Counties as a function of return period on a log-
normal scale and determining the y-intercept of the best -fit line. For the City of Greenville,
the resulting values of g = 112 and h = 20 are applicable in the Tar -Pamlico River Basin,
Option 2: Use the 2-year Design Storm, but Control it to 1-year
Predevelopment Levels
This option involves the following three steps:
❑ First, compute the peak flows (both pre- and post -development) from the drainage area
based on the 2-year design storm using one of the methodologies listed below.
❑ Second, estimate the 1-year pre -development peak flow by multiplying the 2-year
predevelopment peak flow by 80%.
❑ Third, design a BMP that will control the 2-year post -development peak flow to 1-year
pre -development peak flow levels (estimated by the second step).
Exceptions to the Peak Flow Requirement
Peak flow control is not required for developments that meet one or more of the following
requirements:
❑ The increase in peak flow between pre- and post -development conditions does not exceed
10 percent (note that this exemption makes it easier to conduct redevelopment activities).
❑ The development occurs in a part of a drainage basin where stormwater detention can
aggravate local flooding problems.
::ODMA\PCDOCS�COG1186342\1 1

Acceptable Methodologies for Computing Peak Flow
Acceptable methodologies for computing the pre- and post -development conditions for the
design storm include:
❑ The Rational Method
❑ Dr. Rooney Malcom, P.E., Small Watershed Method
❑ NRCS Methodologies applied through the Corps of Engineers HEC- i Program
a The Peak Discharge Method as described in USDA Soil Conservation Service's.
Technical Release Number 55 (TR-55)
❑ The Putnam Method
❑ Other methods approved by the Environmental Management Cornmission
The same method must be used for both the pre- and post -development conditions.
2-F. Offsite Partial Offset Option
The Tar -Pamlico Stormwater Rule provides the option to partially offset nitrogen load
increases from new development by providing treatment of offsite ideveloped areas. The
developer must provide legal assurance of the dedicated use of the off -site area for the
purposes described here, including achievement of specified nutrient load reductions and
provision For regular operation and maintenance activities, in perpetuity. The legal assurance
shall include an instrument, such as a conservation easement, that maintains this restriction
upon change of ownership or modification of the off -site property. , Before using off -site
treatment, the new development must attain a maximum nitrogen export of six (6)
pounds/acre/year for residential development and ten (10) pounds/acre/year for commercial or
industrial development.
Typical features of such an offsite offset project that distinguish it from regional systems
(described in section 2-G) include the following:
a The new development site does not typically drain into the offsite treatment facility.
❑ The offsite facility is retrof-itted to treat an existing developed property.
❑ The offsite facility may address only the nutrient requirements unless a development
proposal demonstrates that meeting some or all attenuation requirements offsite will not
result in degradation of surface waters to which the new development site discharges.
In consideration of this option, the City of Greenville will require a developer submit the
appropriate documentation and calculations with their plat and plans ;that demonstrate the
following:
■ Projects reduce nitrogen load onsite to 6 lb/ac/yr for residential, 10 lb/ae/yr for
commercial, industrial
■ Offsitc location achieves remaining nitrogen reduction requirement.
■ Projects reduce phosphorus loading to 0.4 lb/aclyr between onsitc and offsite BMPs.
■ Projects meet the Flow attenuation requirements of the Rule.
::O])MA1PC1)OCS%COG11R634211 17

• The offsitc property drains to the same receiving body of water as the new
development project.
■ Current owners agree in a documented, enforceable manner that offsite facilities are
dedicated to achieving the specified nutrient and flow reductions for the life of the
new development.
■ All future owners of both properties will understand and accept these restrictions at
the time of purchase.
• Current and future owners of the new development will maintain stormwatcr facilities
on both the new development and the offsitc properties.
Plats and plans for projects are required to show casements, buffers, and other applicable
restrictions. The Engineering Division maintains records of plats within its planning
jurisdiction. Consideration of these records is part of the Engineering Division's review
process for projects. As per Section 9-9-8 of the Code of Ordinancnes for the City of
Greenville, a developer is required to submit a maintenance plan and complete annual
inspection reports for BMPs on their properties. In addition to its annual inspection program,
the City will utilize this information as a mechanism for tracking offsite partial offsets and to
assure that these areas will be maintained.
2-G. Regional or Jurisdiction -Wide Approaches
The Tar -Pamlico Stormwater Rule provides local governments the option to develop regional
or jurisdiction -wide slormwater facilities in its program as an alternative means for developers
to address nutrient or flow control requirements. Currently, the City of Greenville does not
have plans for a regional facility. However, if the City determines that it would be beneficial
to develop such facilities, they would require the review and approval of the North Carolina
Department of Environment and Natural Resources, Division of Water Quality. At such time,
the City of Greenville will develop appropriate ordinances, guidelines, and requirements for
these types of facilities and also establish appropriate tracking processes, mechanisms, legal
instruments, etc. to ensure that regional or jurisdiction -wide approaches continually meet
attenuation and loading requirements of the Tar -Pamlico Stormwater Rule.
Regional Facilities: Within the context of the rule, the concept of a regional facility means
generally a stormwater facility that serves more than one development project, each of which
drains to the facility for treatment or attenuation. Inflows to regional facilities may already be
partially treated or attenuated.
Many individual developments include stormwatcr designs that could be interpreted as
"regional" under the broadest of definitions but which are not intended for the type of review
and approval process described here. Projects such as phased developments or commercial
projects with outparceis may use common stormwater facilities that receive runoff from more
than one development under different ownership. However, common facilities that are
permitted under single projects are intended for permitting by the City of Greenville.
::01)MA\PCDOCSI000118634211 18

Regional facilities provided for in the rule would serve more than one development project.
They could be publicly or privately owned but would be proposedito DWQ by the City of
Greenville. Basic elements of regional system proposals, to be permitted by DWQ, and other
"common -facility" individual projects permitted by the City of Greenville would be the same.
Jurisdiction -Wide Approach: Within the context of the rule, the concept of a jurisdiction -
wide approach means generally a nutrient -reducing management measure implemented under
the authority of a local government to offset one or more increases that may take place in the
same or a separate watershed within the jurisdiction. An offsite offset project (see Section 2-
F) that is implemented under the authority of a local government would be a specific type of
jurisdiction -wide approach.
2-H. BMP Maintenance
BMPs implemented to achieve the nitrogen and phosphorus loading reductionand flow
attenuation requirements for a development must be maintained as established in Sec.9-9-8 in
the City Code of Ordinances. (Presented in Appendix E.) An example of an operation and
maintenance agreement for BMPs is presented in Appendix D. BMPs shall be maintained in
accordance with the methods presented the North Carolina Department of Environment and
Natural Resources, Division of Water Quality, Water Quality Section, Stormwater Best
Management Practices Manual.
The City of Greenville shall inspect all BMPs on an annual basis and will maintain records for
BMPs to include types of BMPs, their locations, approved maintenance plans, and required
inspection process. The City of Greenville shall notify the owner upon finding that
maintenance is needed on a BMP in accordance with Sec. 9-9-8 of the City Code. If the
owner does not complete the maintenance in a timely manner, then the City of Greenville
shall contract out the maintenance itself and recover its costs in the manner as permitted by
this section of the City Code.
2-I. Land Use Planning Provisions
An objective of the Tar -Pamlico Stormwater Rule is to provide the flexibility and incentives
for the City of Greenville to improve its growth management practices and for developers to
considerusing impact -reducing site design techniques that will reduce nitrogen and
phosphorus loading from their developments. One such measure, 1 reducing impervious
surfaces, reduces the need for BMPs to control nitrogen and peak stormwater flows and also
reduces associated BMP maintenance concerns.
The City of Greenville encourages developers to consider the following planning techniques
and the general advantages and disadvantages of incorporating the following:
■ Pervious Paver
■ Pervious concrete/asphalt mixes
■ Minimizing use of curb and gutter
::01)MAIPCDOCs1COGU 8634211 19

■ Cluster or open -space developments
■ Traditional neighborhood developments
■ Mixed -use developments
■ Low Impact Development principles
■ Other impact -reducing approaches
Descriptions of these techniques arc provided in Appendix C.
::0DMA\FCD0Cs\C0C,\180342\1 20

3. Illicit .Discharges
3 A. Requirements in the Rule
The -Tar-Pamlico Stormwater Rule requires the City of Greenville establish a program to
prevent, identify, and remove illicit discharges. Illicit discharges are flows in the stormwater
collection system that are not associated with stormwater runoff or an 'allowable discharge.
3-B. What is an Illicit Discharge?
Stormwater collection systems are vulnerable to receiving illicit discharges (even though the
person responsible for the discharge may be unaware that it is illicit). Depending on their
source, illicit discharges may convey pollutants such as nutrients, phenols, and metals to
receiving waters. Table 3a identifies some potential flows to the stormwater collection system
that may be allowable. Table 3b identifies some discharges that are not allowed.
Table 3a: Discharges that may be allowable to the stormwater collection system
Waterline Flushing
Landscape Irrigation
Diverted Stream Flows
Uncontaminated Rising
Uncontaminated Ground
Uncontaminated Pumped
Ground Water
Water Infiltration to
Ground Water
Stormwater Collection System
Discharges From Potable
Foundation Drains
Uncontaminated Air
Water Sources
Conditioning Condensation
Irrigation Water
Springs
Water From Crawl Space
Pumps
Footing Drains
Lawn Watering
Non -Commercial Car Washing
Flows From Riparian Habitats
NPDES Permitted Discharges
Street Wash Water
and Wetlands
Fire Fighting Emergency
Wash Water From the
Dechlorinated Backwash and
Activities
Cleaning of Buildings
Draining Associated With
Swimming Pools
Table 3b. Types of Discharges that are not allowed to stormwater collection system
Dumping of Oil, Anti -Freeze,
Commercial Car Wash
Industrial Discharges
Paint, Cleaning Fluids
Contaminated Foundation
Cooling Water Unless no
Washwaters From
Drains
Chemicals Added and has
Commercial/ Industrial
NPDES Permit
Activities
Sanitary Sewer Discharges
Septic Tank Discharges
Washing Machine Discharges
Chlorinated Backwash and
Draining Associated With
Swimming Pools
Note: Some of these items may be disposed of through the sanitary sewer system. Please
contact the GUC W WTP at 551-1542 for further information.
:01)MATCDOMCOG1] 8634211 21

3-C. Establishing Legal Authority
In accordance with Chapter 9 "Stormwater Management and Control" of Title 9 in the City
Code of Ordinances (Appendix E), the City of Greenville has established the legal authority to
control and prohibit illict discharges under Section 9-9-17. The purpose and objectives of
establishing this authority by ordinace is as follows:
• Control the contribution of illegal pollutants identified in Table 3b to the stormwater
collection system.
• Prohibit illicit discharges to the stormwater collection system.
• Prohibit discharge of spills and disposal of materials other than stormwater to the
stormwater collection system.
• Determine compliance and non-compliance.
• Require compliance and undertake enforcement measures in cases of non-compliance.
3-D. Collecting Jurisdiction -Wide Information
As part of its program, the City of Greenville will collect geographic information within its
legal boundary, as defiened under State statute, at three increasing levels of detail:
• The first, most cursory level is information that shall be collected for the City's legal
jurisdiction, The associated requirements are discussed in this section.
• The second level is a more detailed screening for high priority areas within the City's legal
jurisdiction. The associated requirements are discussed in Section 3-E.
• The third level is a very detailed investigation that shall be done upon the discovery of an
illicit discharge. The associated requirements are discussed in Section 3-F.
The purpose of collecting jurisdiction -wide information is to assist with identifying potential
illicit discharge sources and characterizing illicit discharges after they are discovered.
The City of Greenville will compile maps that may include, but not necessarily limited to, the
following:
• Location of sanitary sewers in areas of the major stormwater collection systems and the
location of areas that are not served by sanitary sewers.
• Waters that appear on the USDA — Natural Resources Conservation Service Soil Survey
Maps and the U.S. Geological Survey 1:24,000 scale topographic maps.
• Land uses, such as residential, commercial, agriculture, industrial, institutional, publicly
owned open space, and others.
:ODMATCDOCSICOGV 86342\1 22

• Currently operating and known closed municipal landfills and other treatment, storage,
and disposal facilities, including for hazardous materials.
• Major stormwater structural controls.
• Known NPDES permitted discharges to the stormwater collection isystcm .
Written descriptions for the map components will be as follows:
• A summary table of municipal waste facilities that includes the names of the facilities, the
status (open/closed), the types, and addresses.
• A summary table of the NPDES permitted dischargers that includes the name of the permit
holder, the address of the facility, and permit number.
• A summary table of the major structural stormwater control structures that shows the type
of' structure, area served, party responsible for maintaining, and age, of structure.
A summary table of publicly -owned open space that identifies size, location, and primary
function of each open area.
The City of Greenville shall complete this collection of jurisdiction -wide information by the
time the second annual report is due.
3-E. Mapping and Field Screening in High Priority Areas
Beginning in its third year after implementation , the City of Greenville shall identify a high
priority area of its jurisdiction for more detailed mapping and field screening. This high
priority area shall comprise at least ten percent of the jurisdiction's area. Each subsequent
year, the City of Greenville is responsible for selecting and screening another high priority
area that comprises at least 10 percent of its jurisdiction.
"Fligh priority" means the areas where it is most likely to locate illict discharges. The most
likely locations for identifying illicit discharges are areas within older developments. Each
year, the City of Greenville shall explain its basis for selection of its high priority areas.
The first part of the screening process for the selected high priority 'areas is mapping the
stormwater system. At a minimum, the map that is produced should include the following:
• Locations of the outfalls, or the points of discharge, of any pipes from non -industrial areas
that are greater than or equal to 36 inches.
• Locations of the outfalls of any pipes from industrial areas that are greater than or equal to
12 inches.
0DMAv'CDOCSICOCAIS634211 23

• Locations of the outfalls of drainage ditches that drain more than 50 acres of non-
industrial lands.
• Locations of the outfalls of drainage ditches that drain more than 2 acres of industrial land.
• An accompanying summary table listing the outfalls that meet the above criteria that
includes outfall ID numbers, location, primary and supplemental classification of
receiving water, and use -support of receiving water.
The second part of the screening process for the selected high priority area is conducting a dry
weather field screening of all outfalls that meet the above criteria to detect illict discharges.
The dry weather field screening shall not be conducted during or within 72 hours following a
rain event of 0.1 inches or greater.
Figure 3 illustrates a process for conducting field screening sampling activities and following
up with any findings of dry weather flow. As shown in this figure, if the field screening
shows that an outfall is dry, then the outfall will be checked for intermittent flow at a later
date.
If a field screening shows that an outfall has a dry weather flow, the City of Greenville shall
complete a screening report for the outfall. The information that will be contained in the
screening report is outlined in Table 3c. Screening reports shall be kept on file for a minimum
of five years. Example screening report forms arc provided in Appendix F.
Table 3c: Field Screening Report Information
General Information
Sheet Number
Outfall ID Number
Date
Time
Date, Time and Quantity
of Last Rainfall Event
Field Site Description
Location
Type of Outfall
Dominant Watershed Land Use(s)
Visual Observations
Photograph
Deposits/Stains
Odor
Vegetation Condition
Color
Structural Condition
Clarity
Biological
Floatables
Flow Estimation
Sampling Analysis
Temperature
Nitrogen-Nitrate/Nitrite
pH
Fluoride or Chlorine
Nitrogen -Ammonia
Total Phosphorus
Ortho-Phosphate
* Analytical monitoring is required only if an obvious source of the dry weather flow cannot
be determined through an investigation of the upstream stormwater collection system.
Outfalls with (low will be screened again within 24 hours for the above parameters.
:TODMMPCDOCS�COGIr863421E 24

Figure 3: Field Screening Process
No flow
Screen outfall in high priority area Check for signs of intermittent flow
Flow found
found
Inspect and sample flow
Investigate source of flow, considering
the following:
• Jurisdiction -wide information collected
• Field investigation of drainage area of
outfall
• Sampling data
• Qualitative observations -- sheen, odor,
turbidity, etc.
Remove illicit discharge
No flow
Outfall OK
" Checking for intermittent flow includes rechecking outfall at a later date as well as visual
observations for evidence of intermittent flow.
Note: Analytical monitoring may be conducted only if an obvious source of the dry weather
flow cannot be determined through an investigation of the upstream stormwatcr collection
system.
3-F. Identifying and Removing IUicit Discharges
After the field screening is complete, the City of Greenville shall take measures to identify
and remove illicit discharges. Identifying illicit discharges may require a combination of
office and field work. After the field screening, the City of Greenville shall consult the
jurisdiction -wide information they have compiled (see Section 3-D) to obtain information
about the land uses, infrastructure, industries, potential sources, and types of pollution that
exist in the drainage area of the outfall.
After potential sources have been identified in the office, a systematic field investigation will
be completed minimizing the amount of resources required to identify the source. Several
:ODMATCDOCSICOGU86342\1 25

field methods may be used to identify illegal discharges. The City of Greenville will use a
simple approach if that will suffice. Listed below are several approaches, but not necessarily
limited to, that may be used as part of the inspection process:
• Site Investigation
• Additional Chemical Analysis (recommend testing for fecal coliform if the ammonia
concentration was found to exceed 1.0 mg/L)
• Flow Monitoring (recommended to use multiple site visits rather than a depth indicator)
Dye Testing (fluorescent dye is recommended)
• Smoke Testing
Television Inspection
Documentation of the results of the office and field investigations shall be kept on file for a
minimum of five years with the screening report.
After the City of Greenville identifies the source of an illicit discharge, it shall take
enforcement action to have the source removed. The legal authority that was established for
the illicit discharge program shall provide the means to accomplish this requirement.
Enforcement shall include requiring the person responsible for the discharge to remove or
redirect it to the sanitary sewer. If redirected to the sanitary sewer, prior approval frorn
Greenville Utilities Commission will be required by the person responsible for the discharge.
There shall be remedies to deal with cases of non-compliance. Records of all compliance
actions shall be kept for a minimurn of five years with the screening report.
In addition to keeping all screening reports on file, the City of Greenville shall maintain a map
that includes the following:
• Points of identified illicit discharges.
• Watershed boundaries of the outfalls where illicit discharges have been identified.
• An accompanying table that summarizes the illicit discharges that have been identified
that includes location, a description of pollutant(s) identified, and removal status.
3-G. Preventing Discharges and Establishing a Hotline
The City of Greenville shall contact persons who are responsible for establishments that are
likely sources of illicit discharges. Some of these sources include automotive sales, rental,
repair and detailing establishments, lawn care companies, cleaners, and certain types of
contractors. Previous experience has shown that many illicit discharges are actually
unintentional.
The City of Greenville shall establish a hotline. The hotline will require the designation of a
new phone number or use an existing service. The hotline shall include a recording advising
:,ODMATCDOCs1C061] 863421I 26

citizens what to do if they call during non -business hours. There will be another number
given in cases where the illicit discharge is perceived to be an emergency.
3-H. Implementation Schedule
In keeping with their goal of having an efficient and cost-effective program, the City of
Greenville has created a phased implementation schedule for illicit discharges (Table 3d).
The schedule allows for collecting jurisdiction -wide information during the first year of
implementation and then screening the high priority areas during future years. This phased
schedule is also intended to allow the City to evaluate and make improvements to its programs
as the City progresses through high priority areas.
Table 3d: Implementation Schedule and Annual Reporting Requirements
Year
Implementation Requirements
Annual Report Requirements
By August 2004
• Establish legal authority to address
• Submit report identifying
illicit discharges
established legal authority to meet
requirements.
By October 2006
• Collect jurisdiction -wide
+ Report on completion of
information.
jurisdiction -wide information
• Select high priority area for
collection.
additional screening.
• Submit map of high priority areas
• Initiate illicit discharge hotline.
and reason for selection.
• Report on initiation of illicit
discharge hotline.
Each subsequent
• Complete mapping and field
• Subm&map of stormwater
year after 2006
screening for high priority area.
collection system in high priority
• Select next high priority area.
area upon request by DWQ.
• Identify and remove illicit
0 Document illicit discharges found
discharges as encountered.
and resulting action.
• Continue operating illicit discharge
• Report on hotline usage and
hotline.
actions taken.
• Submit map of next high priority
area and reason for selection.
:0DMAM1CD0CS%C0GU 86342\1 27

4. Retrofit Locations
4-A. Requirements in the Rule
As part of its program, the City of Greenville will identify and prioritize places within existing
developed areas that are suitable for retrofits.
4-B. Approach for Meeting the Requirements
Retrofit opportunities will be considered acceptable if all of the following conditions have
been investigated:
• The retrofit, ifs implemented, clearly has the potential to reduce nitrogen or phosphorus
loading to the receiving water.
The watershed is clearly contributing nitrogen or phosphorus loading above background
levels.
The landowner where the retrofit is proposed is willing to have the retrofit installed on his
property. Securing the landowner's cooperation is one of the most important tasks for the
local government, as this is often the most difficult aspect of implementing a retrofit.
+ There is adequate space and access for the retrofit.
• It is technically practical to install a retrofit at that location.
The minimum number of retrofit opportunities that the City of Greenville is required to
identify is three. Sites may be carried over to meet the minimum requirements for up to two
subsequent years provided that BMPslretrofits have not been implemented and the site
continues to meet the criteria above on an annual basis.
4-C. Data Collection and Notification
Each retrofit opportunity that is identified shall be accompanied by information to describe the
location of the retrofit being proposed, the property owner, as well as basic information about
the watershed and the receiving water. Table 4 is the format in which the City will present the
information for each retrofit opportunity. This information shall be included as part of the
City's annual report to be submitted to the Division of Water Quality on Octorber 30'h of each
year beginning in the year 2005.
;01}MATCDOCS!COMI 86342\1 28

Table 4: Retrofit Opportunity Table
Each retrofit opportunity that is identified shall be accompanied by information to describe the
location of the retrofit, the type of retrofit being proposed, the property owner, as well as basic
Location description, including directions from a
major highway
Type and description of retrofit opportunity
Current property owner
Is the property owner willing to cooperate?
Land area available for retrofit (sq. ft)
Accessibility to retrofit site
Drainage area size (acres)
Land use in drainage area (percent of each type
of land use)
Average slope in drainage area (%)
Environmentally sensitive areas in drainage area
(steep slopes, wetlands, riparian buffers,
endangered/ threatened species habitat)
Approximate annual nitrogen and phosphorus
loading from drainage area (lbs/acre/ ear
Potential nitrogen reduction (lbslac/yr)*
Potential phosphorus reduction (lbslac/yr)*
Estimated cost of retrofit
Receiving water
DWQ classification of'receiving water
Use support rating for receiving water
Other important information
4-D. Mapping Requirements
The City of Greenville shall provide maps that show the locations of retrofit opportunities,
which will include the following parameters:
• Drainage area to retrofit opportunity site.
• Land uses within the drainage area.
• Location of retrofit opportunity.
:0I}MATCDOCS\COG1186342\1 29

• Property boundaries in the vicinity of the retrofit opportunity.
• Roads.
Environmentally sensitive areas (wetlands, riparian buffers, endangered/threatened species
habitat — if available),
0 Publicly -owned parks, recreational areas, and other open lands.
ODh1A\PCDOCSICOG118634211 30

5, Public Education
5-A. Requirements in the Rule
The Tar -Pamlico Stormwater Rule requires the City of Greenville to develop a locally
administered environmental education program to address nitrogen & phosphorous loading
issues with the public and developers and to address peak stormwater flow issues with
developers.
5-B. Public Education Action Report and Plan
The City of Greenville has developed a Public Education Action Report and Plan, An
example Action Report and Plan format is presented in Appendix G. This Report and Plan
outlines proposed education activities for an upcoming year identifies target audiences, and
anticipated costs of the program. The City of Greenville shall submit an Annual Action
Report and Plan to DWQ for approval as part of its annual report.
The Action Report and Plan template in Appendix G identifies point values for each type of
education activity that may be used by the City of Greenville. The City of Greenville is
required to conduct activities that sum to at least 15 points each year. Ongoing activities,
such as continuing programs for pet waste or storm drain marking, receive credit for each
year they are continued.
During the first year of program implementation, the City of Greenville will conduct two (2)
technical workshops. One shall be designed to educate local government officials and staff
and the other for the development community to include: engineers, developers, architects,
contractors, surveyors, planners, and realtors. These two workshops will receive point credit
toward the annual total. During subsequent years, technical workshops are considered an
optional activity.
::0DMA\PCD0Cs\C0G\l86342\1 31

6. Reporting Requirements
Annual Tar -Pamlico River Basin stormwater program reports must be submitted to the
Division of Water Quality by October 30'1' of each year beginning in 2005. All reports shall
contain the following information:
6 A. New Development Review/Approval
The City of Greenville shall be responsible for submitting the following information as part
of the annual reporting requirement:
• Acres of new development and impervious surface based on plan approvals.
• Acres of new development and impervious surface based on certificates of occupancy.
• Summary of BMPs implemented and use of offsite options.
• Computed baseline and net change in nitrogen and phosphorus export from new
development that year.
• Summary of maintenance activities conducted on BMPs.
• Summary of any BMP failures and how they were handled.
• Summary of results from any applicable jurisdictional review of planning issues.
• Summary of Construction compliance, O & M compliance, inspections and enforcement
actions.
• Compliance with program implementation schedule.
• Program administrative changes, other issues for DWQ.
6-B. Illicit Discharges
Table 6a outlines the annual reporting requirements for illegal discharges.
Table 6a: Implementation Schedule and Annual Reporting Requirements
Year
Implementation Requirements
Annual Report Requirements
By August 2004
• Establish legal authority to
• Submit report identifying
address illicit discharges
established legal authority to
meet requirements.
By October 2006
• Collect jurisdiction -wide
• Report on completion of
information,
jurisdiction -wide information
• Select high priority area for
collection.
additional screening.
• Submit map of high priority
• Initiate illicit discharge hotline.
areas and reason for selection.
• Report on initiation of illicit
discharge hotline.
cODMATCDOCSICOG1I86342V 32

Each subsequent
year after 2006
• Complete mapping and field
screening for high priority area
• Select next high priority area.
• Identify and remove illicit
discharges as encountered.
• Continue operating illicit
discharge hotline.
6-C. Retrofit Locations
• Submit map of stormwater
collection system in high priority
arei upon request by OWQ.
• Document illicit discharges
found and resulting action.
• Report on hotline usage and
actions taken.
• Submit map of next high priority
area and reason for selection.
The City's annual report will include the following on retrofit locations:
• Data on each retrofit opportunity (Table 4 or other equivalent format),
• Maps of potential retrofit sites as specified in Section 4-D, and
• The status of any retrofit efforts that have been undertaken within the jurisdiction.
6-D. Public Education
The City's annual report wills also included a summary of the next year's Action Plan and
evaluation regarding the implementation of the previous year's Action Plan (if applicable).
The report will also include goals, activities completed, realized education program costs,
explanation of experienced shortfalls, of and possible plans as to address these shortfalls.
ODMA\VCDOCS\COG1I86342\1 33

APPENDICES TO THE
CITY OF GREENVILLE
STORMWATER MANAGEMENT
PROGRAM
C:1Userslkholton\AppData\Roami ng\OpenText\DM\Temp\COG-# 184054-v3-
Stromwater_Managment_Program_Appendix.doc Revised: M

Appendices
Appendix A 15A NCAC 2B .0258 Tar -Pamlico River Basin Nutrient Sensitive ...2
Waters Management Strategy: Basinwide Stormwater Requirements
Appendix B Site Evaluation Tools.........................................................5
Appendix C hand Use Planning and DesignTechniques..............................12
Appendix D BMP Operation and Maintenance.........................................17
Appendix E Chapter 9 "Stormwater Management and Control.......................23
"Title 9 "Building, Planning, and Development Regulations"
Charter and Code of Ordinances for the City of Greenville
Appendix F Illicit Discharge Screening Report Form.................................40

Appendix A.- 15A NCAC 2B .0258 Tar -Pamlico River Basin -
Nutrient Sensitive Waters Management Strategy:
��.
Basinwide Stormwater Requirements
(a) PURPOSE. The purposes of this Rule are as follows.
(1) To achieve and maintain a reduction in nitrogen loading to the Pamlico estuary from
lands in the Tar -Pamlico River Basin on which new development occurs. The goal of
this Rule is to achieve a 30 percent reduction relative to pre -development levels;
(2) To limit phosphorus loading from these lands to the estuary. The goal of this Rule is
to limit phosphorus loading to pre -development levels;
(3) To provide control for peak stormwater flows from new development lands to ensure
that the nutrient processing functions of existing riparian buffers and streams are not
compromised by channel erosion; and
(4) To minimize, to the greatest extent practicable, nitrogen and phosphorus loading to
the estuary from existing developed areas in the basin.
(b) APPLICABILITY. This Rule shall apply to local governments in the Tar -Pamlico basin
according to the following criteria.
(I) This Rule shall apply to the following municipal areas:
(A)
Greenville
(B)
Henderson
(C)
Oxford
(D)
Rocky Mount
(E)
Tarboro
(F)
Washington
(2) This
Rule shall apply to the following counties:
(A)
Beaufort
(B)
Edgecombe
(C)
Franklin
(D)
Nash
(E)
Pitt
(3) The Environmental Management Commission may designate additional local
governments as subject to this Rule by amending this Rule based on the potential of
those jurisdictions to contribute significant nutrient loads to the Tar -Pamlico River.
At a minimum, the Commission shall review the need for additional designations as
part of the Basinwide process for the Tar -Pamlico River Basin. The Commission
shall consider, at a minimum, the following criteria related to local governments:
population within the basin, population density, past and projected growth rates,
proximity to the estuary, and the designation status of municipalities within candidate
counties,
(c) REQUIREMENTS. All local governments subject to this Rule shall develop stormwater
management programs for submission to and approval by the Commission according to the
following minimum standards:
2

{ I } A requirement that developers submit a stormwater management plan for all new
developments proposed within their jurisdictions. These stormwater plans shall not
be approved by the subject local governments unless the following criteria are met:
(A)The nitrogen load contributed by the proposed new development activity shall not exceed 70
percent of' the average nitrogen load contributed by the non -urban areas in the Tar -Pamlico
River basin based on land use data and nitrogen export research data. Based on 1995 land
use data and available research, the nitrogen load value shall be 4.0 pounds per acre per year;
(B)The phosphorus load contributed by the proposed new development activity shall not exceed
the average phosphorus load contributed by the non -urban areas in the Tar -Pamlico River
basin based on land use data and phosphorus export research data. Based on 1995 land use
data and available research, the phosphorus load value shall be 0.4 pounds per acre per year;
(C) The new development shall not cause erosion of surface water conveyances. At a minimum,
the new development shall not result in a net increase in peak flow leaving the site from pre -
development conditions for the I -year, 24-11our storm event; and
(D) Developers shall have the option of partially offsetting their nitrogen and phosphorus loads
by providing treatment of off=site developed areas. The off -site area must drain to the same
classified surface water, as defined in the Schedule of Classifications, 15A NCAC 2B .0316,
that the development site drains to most directly. The developer must provide legal
assurance of the dedicated use of the off -site area for the purposes described here, including
achievement of specified nutrient load reductions and provision for regular operation and
maintenance activities, in perpetuity. The legal assurance shall include an instrument, such
as a conservation easement, that maintains this restriction upon change of ownership or
modification of the off -site property. Before using off -site treatment, the new development
must attain a maximum nitrogen export of' six pounds/acre/year for residential development
and 10 pounds/acre/year for commercial or industrial development.
(2) A public education program to inform citizens of how to reduce nutrient pollution and
to inform developers about the nutrient and flow control requirements set lorth in Part
(c)(I ).
(3) A mapping program that includes major components of the municipal separate storm
sewer system, waters of the State, land use types, and location of sanitary sewers.
(4) A program to identify and remove illegal discharges.
(5) A program to identify and prioritize opportunities to achieve nutrient reductions from
existing developed areas.
(6) A program to ensure maintenance of BMPs implemented as a result of the provisions
in Subparagraphs (c)(1) and (c)(5).
(7) A program to ensure enforcement and compliance with the provisions in
Subparagraph (c)(1).
(8) Local governments may include regional or jurisdiction -wide strategies within their
stormwater programs as alternative means of achieving partial nutrient removal or
flow control. At a minimum, such strategies shall include demonstration that any
proposed measures will not contribute to degradation of surface water quality,
degradation of aquatic or wetland habitat or biota, or destabilization of conveyance
structure of involved surface waters. Such local governments shall also be
responsible for including appropriate supporting information to quantify nutrient and
flow reductions provided by these measures and describing the administrative process
flor implementing such strategies.
3

(d) TIMEFRAME FOR IMPLEMENTATION. The timeframe for implementing the
stormwater management program shall be as follows:
(1) Within 12 months of the effective date of this Rule, the Division shall submit a model
local stormwater program that embodies the minimum criteria described in Paragraph
(c) of this Rule to the Commission for approval. The Division shall work in
cooperation with subject local governments in developing this model program.
(2) Within 12 months of the Commission's approval of the model local stormwater
program or within 12 months of a local government's later designation pursuant to
Subparagraph (b)(3), subject local governments shall submit their local stormwater
management programs to the Commission for review and approval. These local
programs shall meet or exceed the requirements in Paragraph (c) of this Rule.
(3) Within 18 months of the Commission's approval of the model local stormwater
program or within 18 months of a local government's later designation pursuant to
Subparagraph (b)(3), subject local governments shall adopt and implement their
approved local stormwater management program.
(4) Local governments administering a stormwater management program shall submit
annual reports to the Division documenting their progress and net changes to nitrogen
load by October 30 of each year.
(e) COMPLIANCE. A local government that fails to submit an acceptable local storrwater
management program within the timeframe established in this Rule or fails to implement an
approved program shall be in violation of this Rule. In this case, the stormwater management
requirements for its jurisdiction shall be administered through the NPDES municipal stormwater
permitting program per 15A NCAC 2H .0126. Any local government that is subject to an
NPDES municipal stormwater permit pursuant to this Rule shall:
(1) Develop and implement comprehensive stormwater management program to reduce
nutrients from both existing and new development. This stormwater management
program shall meet the requirements of Paragraph (c) of this Rule for new and
existing development.
(2) Be subject to the NPDES permit for at least one permitting cycle (five years) before it
is eligible to submit a local stormwater management program to the Commission for
consideration and approval.
History Mole: Aulhority G.S. 143-214.1; 143-214.7; 143-215.3(a)(1): 143-215.6A; 143-215.6f3;
143-215.6C; 143-282(d);
E. f April 1. 2001.

Appendix B. Site Evaluation Tools
This appendix contains a set of'worksheets for estimating nitrogen and phosphorus export from a
development project prior to and following development, and following the installation of' best
management practices (BMPs) on the development.
An automated version of the worksheets is available on the North -Carolina Department of
Environment and Natural Resources, Division of' Water Quality website. The website address is
http://h2o.enr.state.ne.us/nps/documents/N-PCalcsheetCoastProtected 10-04.xIs. The worksheets
are presented in an Excel format and can be downloaded from this site.
The worksheets in this appendix and the automated version of the worksheets both contain the
following elements:
I. Definitions of Land Use Terms Used in Spreadsheets (1 pg.)
2. Residential Worksheet when Footprints are not Shown ( I pg.)
3. Export Calculation Worksheet for Coastal Plain Communities (I pg.)
4. BMP Removal Calculation Worksheet for Coastal Plain Communities (3 pp.)

Tar -Pamlico Stompwater Rule 15A NCAC 2B .0258 Last Modified 2/28/2013
[ntroduction 71
The set of worksheets included in this file will enable stormwater permit applicants to comply with, and local
governments to administer, the nutrient loading requirements of the Tar -Pamlico Stonnwater Rule; 15A NCAC
28 .0258. The file contains a set of worksheets for estimating nitrogen and phosphorus export from a
development project prior to and following development, and following the installation of best management
practices (BMPs) on the development. Supporting information on the design of the worksheets can be found in
the document, Tar -Pamlico River Basin: Model Slormwaler Program for Nutrient Control, available from local
governments implementing the stormwater rule and the NC Division of Water Quality staff contact for the Tar -
Pamlico nutrient strategy, in the Nonpoint Source Unit of the central DWQ office, Raleigh, NC. The information
may also be downloaded from the Division of Water Quality's Tar -Pamlico web page at
http://h2o.enr.state.ne.us/nps/tarpam.htnt.
This file contains worksheets with the following elements:
1. Definitions of Land Use Terms Used in Spreadsheets (this page)
2. Residential Worksheet when Footprints are not Shown (1 pg.)
3. Export Calculation Worksheet for Coastal Plain Communities (I pg.)
4. 13MP Removal Calculation Worksheet for Coastal Plain Communities (3 pp.)
Definitions of Land Use Terms Used in Spreadsheets
Transportation impervious: The portion of the development that is taken up by roads, driveways, parking
areas, wash pads or any other facility designed for vehicular use, maintenance or storage. 'transportation
impervious includes areas covered in pavement, gravel, pavers and dirt.
Roof impervious: The portion of the development that consists of roofs of buildings and garages that serve
single-family homes. Commercial parking garages shall be considered as transportation impervious.
Managed pervious: The portion of the development that consists of vegetated areas that the landowner could
manage by mowing, logging, applying fertilizer, etc. Although residential development may include pervious
areas that are initially undisturbed, these areas must be considered as managed pervious (instead of wooded
pervious) unless they have conservation easements or another mechanism to insure they will not be managed.
Also, the land in Zone 2 (the outer 20 feet) of a protected riparian buffer must be considered as managed
pervious area unless it is protected by a conservation mechanism.
Wooded pervious: The portion of the development that consists of forested areas that are permanently protected
by a conservation easement or other binding conservation mechanism. Also, wetlands and the land in Zone i of
a protected riparian buffer (the first 30 feet adjacent to a stream) may be considered as wooded pervious area.

Tar -Pamlico Storm water Rule 15A NCAC 2B .0258 Last Modified 2/28/2013
Residential Worksheet when Footprints are not Shown
Use this worksheet when huilding footprints tire not known to deterntine the acreage in each of the four categories -
transportation impervious, roof impervious, managed pervious, and wooded pervious -,in the development. You
will need these acreages for bath the "E.vport before BA1Ps" and ''Export after BWO' worksheets. For the
"Grport after BMP.Y" worksheet, you will need to subtract the acreage occupied by BMPs front the managed
pervious acreage produced by= this worksheet. Also for the "E.vport after BMP.s" worksheel, if the development
contains mare than one c'utc'hntent, use this worksheet far each eatchntent.
Project Name:
Date:
By:
Directions:
> In the two green spaces in the box below, enter the average lot size and the percent of the right-of-way that is
impervious within the development.
> In the table below, for the type of land cover listed for each column, enter acreages in the green boxes beneath.
> In the "Lot Area" column, be sure to enter acreage within lots that is protected by a conservation easement, the Tar -
Pamlico buffer rule, or wetland rules in the green box in the lower lefthand corner (enter "0" if there is none). If lots
are drawn to exclude protected lands that are part of the total development acreage, enter the acreage of those protected
lands as wooded pervious in the "Community Areas" column.
> The spreadsheet will compute all values in the light blue shaded boxes.
> NOTE: In the "Community Areas" column, you will need to ensure that the various component acreages sum to the
value in the "TOTAL" box at the top. The spreadsheet will not correct for inconsistencies. Any inconsistency between
the total value and the sum of individual acreages will carry over to column (5).
Average lot size = ; :i Jac (Must show building footprints if lot size < 0.13 ac.)
% impervious in right -of --way =� "4: "..."11%
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'4.•

Tar -Pamlico Stormwater Rule 15A NCAC 2B .0258
Coastal Plain of the Tar -Pamlico River Basin:
Includes Greenville and Washington as well as Pitt and Beaufort Counties
Last Modified 2/28/2013
Total Nitrogen and Total Phosphorus Loading Calculation Worksheet (Automated)
Project Name:
Date:
11y: Checked By:
Directions (vame for pre -development and post -development tables):
> Enter the acres of each type of land cover in the green boxes. The spreadsheet will calculate all of the values in light blue.
> Compare total areas of development in pre- and post- tables for consistency (bottom of column (2)), and also for consistency with
the site plans. I f all ol'thesc values are not the same, there is an error that must be corrected.
> [finless drainage onto the development from offsite is diverted around or through the site, offsite catchment area draining in must he
included in the acreage values and treated.
Pre -development:
1 "1i
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Note: The nutrient loading goals are 4.0 Ib/ac/yr for TN and 0.4 Ib/ac/yr for TP. If the post -development nutrient
loading is below these levels, then no BMP is necessary. Otherwise, the next worksheet calculates
post-deve[opment 'IN and TP loadings after BMPs are installed.

Tar -Pamlico Stormwater Rule i 5A NCAC 2B .0258 Last Modified 5/23/03
Coastal Plain of the Tar -Pamlico River Basin:
Includes Greenville and Washington as we11 as Pitt and lBeauffin Counties
BMP Removal Calculation Worksheet (Automated)
Project Name:
Date:
By: Checked Hy:
Direclians.
> It may be advantageous to split the development into separate catchments to be handled by separate BMPs The tables below allow
the development to be split into as many as three catchments, and can be copied for greater than three. NOTE: Unless runoff flowing
onto the development from offsile is routed separately around or through the site, the offsite catchment area draining in must be
included in the acreage values of the appropriate land use(s) and treated.
> Above each lablc: linter the catchment acreage in tho top green blank, Based on a comparison of the post -development TN and TP
export coefficients you calculated above to the rule requirements of 4.0 Iblue/yrTN and 0.4 Ibrae/yr TP, select 13MP(s) from the fist for
treating the catchment runoff. Enter the chosen 13MP(s) nutrient removal rates in the green blanks. if more than one BMP is to be
used in series, the combined removal rates will be calculated automatically in the blue blanks,
> Catchnrenl 'fables: lamer the acres of each type of land cover in the green boxes. The spreadsheet will calculate all of the light blue
boxes. NOTE: Compare the Total Catchmcrrl Acreage for the Development (final table) to the value you established in the pre-BMP
workshcet tables, and allo to the site plans, for consistency. All ol'lhcse values need to be the some
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Second BMP's TN removal rate = % Second BMP's'I'll removal rate = %
Third I3MP's'I'N removal rate = % 'third BklP's'fP removal rate = °�
TOTAL TN REMOVAL RATE = U % TOTAL TP REMOVAL RATE, = U %
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Tar -Pamlico Stormwater Rule 15A NCAC 2B .0258
Last Modified 5123103
Catchment 2:
Total acreage of catchment _�.; „ ac
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Second BMP's TN removal rate = % Second BMP's TP removal rate
Third BMP's TN removal rate = `';. ` ' % Third 13MP's TP removal rate =t,7 • '_ '= "• , ,, (%
TOTAL TN REMOVAL RATE = 0 % TOTAL TP REMOVAI, RATE = tl %%
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Tar -Pamlico 3tormwater Rule 15A NCAC 2B .0258
Last Modified 5/23103
Coastal Plain of the Tar -Pamlico River Basin:
Includes Greenville and Washington as well us Pitt and Beaufort Counties
BMP Removal Calculation Workshim (Automated)
Project Name:
Date:
By: Checked By:
Directions:
> It may be advantageous to split the development into separate catchments to be handled by separate BMPs. The tables below allow
the development to be split into as many as three catchments, and can be copied for greater than three. NOTH: Unless runoff flowing
onto the development from offsite is routed separately around or through the site, the oftsite catchment area draining in must be
included in the acreage values of'the appropriate land use(s) and treated.
> Above each table: Enter the catchment acreage in the top green blank. Based on a comparison of the post-development']'N and TP
export coefficients YOU calculated above to the rule requirements of4.0 Ib/ac/yr TN and 0.4 lblaclyr Tl select BMP(s) from the list for
treating the catchment runoff. Enter the chosen BMP(s) nutrient removal rates in the green blanks, If more than one BMP is to he
used in series, the combined removal rates will be calculated automatically in the blue blanks.
> Catchinvnt'1'ahlesi Enter the acres of each type of land cover in the green boxes. The spreadsheet will calculate all of the light blue
boxes. NOTE: Compare the Total Catchment Acreage for the Development (final table) to the value you established in the pre-BMP
worksheet tables, and also to the site plans, for consistency. All of these values need to be the same
II II!I I' I ill II IIII I IIIIII 111 I ll IIII! ,;Ni Ill I Ill ,I ill IIII"1;'p! IIIII II11 Dlersigln stiilrildhilrillll III! Ili IIIII! Ili
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modifications in development plans are required.

Appendix C. Land Use Planning and Design Techniques
Reducing Road Widths
In many instances, road widths are required to be wider than needed to safely convey
traffic through residential and commercial areas. Although these wide widths are
often adopted to increase safety for automobiles, they often increase speeds through
residential areas and, in so doing, may decrease safety for pedestrians and cyclists.
Also, same jurisdictions require curb and gutter for aesthetic reasons where it is not
actually necessary to control stormwater runoff. This can result in increased
flooding and also eliminates the potential for stormwater runoff control and
treatment that can occurs in properly designed and maintained roadside swales.
Most local governments model their residential street design standards after state
and/or federal highway criteria, although the traffic capacity and function of their
street system is considerably different from highways. Very few communities
recognize any local road categories that are different from established state and
federal street categories. Many local traffic engineers have simply accepted the
notion that wider streets adequately address these concerns and that wide streets are
safe streets (Schueler 1995).
Narrower road widths can reduce the road surface area by up to 35 percent.
A number of communities have implemented standards that promote narrower
residential streets and have concluded this to be an attractive, safe and
environmentally beneficial alternative.
Communities should also review their standards for turnarounds to reduce the need
or unnecessary road surface. One of the most common types of turnaround is a cul-
de-sac that may have a diameter of 80 to 100 feet or more (Schucler 1995). Some
communities are recognizing that this is excessive and are choosing alternatives that
create less impervious cover, such as T-shapes. A 60-Foot by 30-foot T-shaped
turnaround creates only about 36% as much impervious area as an 80-foot diameter
cul-de-sac and is more than adequate for most vehicles.
Local governments should: (1) examine community regulations governing road
width and turnaround size, (2) evaluate if the specified widths are necessary; and (3)
where feasible, make changes to reduce unnecessary road surfaces.
Reducing Minimum Parking Requirements
Parking lots are often designed to accommodate parking needs on the busiest days of
the year. For example, shopping center parking areas are often big enough to handle
the busy holiday times, but then sit vacant for much of the rest of the year. This can
result in increased nitrogen load (as opposed to maintaining open space).
12

Some management strategies that would contribute to a reduction in urban nitrogen
from parking lots:
• Use angles and smaller parking spaces.
• Use more pervious construction materials in seldom -used parking areas (Land of
Sky 1995).
• Provide public transportation to shopping centers during the peak holiday times and
encourage people to use it.
• Design parking areas to drain in sheet flow into stable vegetated areas.
Minimizing Use of Curb and Clutter
Runoff is conveyed along streets and parking areas in one of two ways, either (a) in
an open drainage channel located in the right of way, or (b) in an enclosed storm
drain located under the street or right of way. The use of an open channel or storm
drain in a particular street is determined by a number of factors, such as -drainage
area, slope, length, housing density, and street type. Open channels can be used on
smaller streets, but at some point runoff velocities become too erosive to be
adequately handled in an earthen channel and they must be enclosed in a storm
drain. This erosive velocity is typically around 4 fleet per second. A channel's
maximum velocity is generally defined and computed using the peak discharge rate
under the two year design storm event.
Open vegetated channels can have many water resource protection benefits. For
example, a portion of'stormwater pollutants may be removed through grass and soil
as they pass through the channel. Performance monitoring has shown that open
channels only realize these benefits under ideal conditions (e.g., low slope, sandy
soils, dense grass cover, etc.). When these conditions are not met, drainage channels
can have a low or even negative removal capability for many pollutants.
Only recently have engineers recognized the value of designing open channels
explicitly for pollutant removal during small and moderate -sized storm events.
Depending on the depth to the water table, they are known as either grass channels,
dry swales or wet swales. CheckdamS, underdrains, stone inlets, prepared soil mixes
and landscaping are also used to enhance the pollutant removal capability of'swaies.
The use of grass channels or swales along residential streets can be an economical
and effective element of a BMP system, as long as the critical erosive velocity is not
exceeded. In addition, open channels must be designed to prevent standing water, to
ensure that mowing is convenient, and to avoid odors, mosquitoes, or other
nuisances associated with standing water.
Even the moderate vertical break of a curb shelters airborne pollutants that blow in
by the wind. Thus, dust, pollen, leaves, grass clippings, and other nitrogen -rich
organic matter can be trapped by the curb, where they remain until they are washed
into the storm drain system.
Some management strategies that may contribute to a reduction in urban nitrogen
from roadside drainage systems are:
13

• Minimize the use of curb and gutter and maximize the use of vegetated swales where
feasible.
• If curb and gutter is necessary, consider frequent curb cuts to divert manageable
quantities of runoff into stable vegetated areas for infiltration. (Land of Sky 1995).
• Develop a site/landscaping plan that uses landscaped areas for infiltration or
detention/rctention areas (bioretention).
• Instead of grass that requires chemical applications, use trees, shrubs; ground cover,
mulch or other materials that require little or no chemical applications.
Allowing Cluster or Open -Space Developments
Cluster or open -space developments rearrange density on each development tract so
that a lower percentage of the tract is covered by impervious surfaces. This results
in more land being retained in a natural state.
This approach respects private property rights and the ability of developers to create
new homes for the expanding population. Such developments are "density -neutral"
since the overall number of dwellings allowed is not less than it would be in a
conventional development. This lessens the adverse impact on the remaining natural
areas and cultural resources that make our communities such special places to live,
work, and recreate.
The most important step in designing an "open space subdivision" is to identify the
land to preserve. "Primary Conservation Areas" include unbuildable wetlands,
waterbodics, floodplains, and steep slopes. "Secondary Conservation Areas," include
mature woodlands, upland buffers around wetlands and waterbodics, prime
farmland, natural meadows, critical wildlife habitats, and sites of historic, cultural or
archeological significance.
Cluster developments can reduce road lengths by 50 to 70 percent (Arendt 1993). At
an average cost of over $100 to construct a linear foot of road, such reductions are
extremely cost-effective. The reduction in road length may also reduce the overall
capital costs for stormwater controls. The developer may realize a significant
savings in the reduced need for storm drain pipes and best management practices. It
has been reported that in some cases the overall reduction in capital costs associated
with these developments can be 10 to 33 percent (Schueler 1995).
Property owners can realize indirect econornic benefits from reduced impervious
cover. While a host of factors influence future residential property values, sorne
evidence indicates that homes located adjacent to well designed and maintained open
or green space do appreciate at a faster rate than traditional subdivision properties.
This premium has been found to range from 5 to 32 percent, according to Land
Ethics (1994). Another study in Massachusetts indicated that homes in cluster
subdivisions with open space appreciated 13% more in value than similar homes in
conventional subdivisions over a 21-year period (Arendt 1993).
For local governments, it is typically more expensive to provide public services on
large residential lot developments compared to smaller ones. Clustered
14

developments can greatly reduce the length of water and sewer pipes and roads that
local governments have to construct and maintain.
Allowing Traditional Neighborhood Developments
Traditional neighborhood developments (TNDs) are designed so that dwellings,
shops, and workplaces are in close proximity. They typically follow.a rectilinear
pattern of streets and blocks arranged to provide interesting routes'of travel that also
accommodate and promote pedestrian travel and bicycic travel rather than
automobile travel. These developments also include greenways, landscaped streets,
churches, stores, schools, and parks woven into the neighborhood for social activity,
recreation, aesthetics, and environmental enhancement. See I:igure,GI for a diagram
of a TND.
One of the most important features of TNDs that affects water quality is their
compactness. As these developments expand, they maintain their compact,
rectilinear layout and their accessibility. Another environmental advantage offered
by TNDs is that they may reduce automobile traffic and promote increased use of
alternative forms of transportation, such as mass transit.
Environmental impacts of TNDs are affected by site conditions and the development
intensity and design. Those TNDs that offer environmental benefits may also offer
economic benefits. The increased value of real estate in a traditional development is
illustrated in Raleigh. The "inside the beltline" neighborhoods in Raleigh that have
city blocks, greenways, and accessibility to shopping areas, on the average, sell for
40 percent more per square foot than homes in North Raleigh subdivisions (pers.
comm. Marilyn Marks, Simpson and Underwood Realtors, 1997).
Other Techniques
In many instances, subdivision codes contain rigid requirements that govern setbacks
from the property lines. These requirements increase the length of driveways, roads,
and sidewalks and thus increase the proportion of impervious cover to housing units.
These requirements can inadvertently increase impervious surfaces and cause
expense for developers and homeowners.
Large -lot zoning also impacts overall imperviousness. Although large -lot zoning
reduces rooftop impervious cover in a watershed and spreads development over a
wider geographic area, it can increase transport-relatcd impervious cover because of
longer road networks. Although large -lot zoning may be wise for individual
sensitive watersheds, it is probably not practical as a uniform standard. An
alternative is forming more compact neighborhoods in order to decrease impervious
surfaces associated with transportation, a factor that has long been overlooked.
Another advantage to compact neighborhoods is that they decrease automobile use
by allowing better accessibility for walkers and cyclists, and facilitating public
transportation.
Figure G1. Maytown Before and After (adapted from Stimmel Associates; 1993)
15

A. Maytown in 1900 B. Mavtown today. C. Mavtown as it could have been.
A. Mavtown developed around
13. The development that has occurred
C. The same amound of development
a central square with a grid street
over the past 30 years is not
could have been accommodated in a
pattern. Development was compact
compatible with the original village.
pattern that complements the original
and there was a distinct separation
Curvilinear street and cul-de-sacs
village. All residents could have been
between the village and the
have replaced the traditional grid
within walking distance of the center
surrounding countryside.
street pattern. The separation between
square, community facilities, and
the village and the surrounding
parks,
countryside have been lost.
V

Appendix D. BMP Operation and Maintenance Agreement
�rExampleJ
The BM Operation and Maintenance Agreement presented is in a general format for
recording purposes. It is the' landowner's responsibility to prepare a document that is in
accordance with the requirements of the City of Greenville's Stormwater Management and
Control Ordinance.
li

BMP OPERATION AND MAINTENANCE AGRE'I-.MEN'fr
THIS AGREEMENT, made and entered into this day of 20, by and
between hereinafter
(Insert Full Name of Owner)
called the "Landowner" and the City of Greenville, hereinafter called the "City".
WITNESSETH, that
WHEREAS, the Landowner is the owner ofccrtain real property described as
as recorded by deed in the land
(Pitt Comity Tax Map / Parcel Identification Number)
records of Pitt County, North Carolina, Deed Book Page
hereinafter called the "Property".
WHEREAS, the Landowner is proceeding to build on and develop the Property: and
WHERFAS, the Site Plan/Subdivision Plan known as
(Name of Plan/Development)
hereinafter called the "Plan", which is expressly made a part hereof, as approved or to be
approved by the City, provides for detention of storrmvater within the confines of the property:
and
WHEREAS, the City and the Landowner, its successors and assigns, including any
homeowners association, agree that the health, safety, and welfare of the residents of the City of
Greenville, North Carolina, require that on -site stomtwater martagementlBMP facilities be
constructed and maintained on the Property; and
WHEREAS, the City requires that on -site stormwaler managenrent/BMP facilities as shown
on the Plan be constructed and adequately maintained by the Landowner, its successors and
assigns, including any homeowners association.
NO"', THEREFORE, in consideration of the foregoing premises, the mutual covenants
contained herein, and the following terms and conditions, the parties hereto agree as follows:
Return to:
City of Greenville — Public Works Department, Fnginecring
1500 Beatty Street, Greenville, North Carolina 27834

1. The on -site stormwater manugenienll13MP facilities shall be constructed by the
Landowner, its successors and assigns, in accordance with the plans and specifications
identified in the Plan.
2 The Landowner, its successors and assigns, including; any homeowners association,
shall adequately maintain the stomnvater management/13MP facilities in.accordance with
the requirements of the City of Greenville's Store water Management'Prograrn, which
references the North Carolina Department of Environment and Natural Resources,
Division of Water Quality, Water Quality Section, Siornmvaier Bev Management
Practices Manual. This includes all pipes and channels built to convey slormwater to the
facility, as well as all structures, irrrprovemcnts, and vegetation provided to control the
quantity and quality ofthe slormwater. Adequate maintenance is herein defined as good
working condition so that these facilities are performing their design functions.
3. The Landowner, its successors and assigns, shall have a qualified prolessional as
defined by Title 9 Chapter 9 of the Greenville City Code inspect the slormwater
management/13MP facility and maintain annual inspection reports. The purpose of the
inspection is to assure sale and proper functioning of the lacilities. The inspection shall
cover the entire facilities, berms, outlet structure, pond areas, access roads, etc.
Deficiencies shall be noted in the inspection report. Annual reports shall be kept on
record for it minitnurn of five years and shall be made available to the City upon request.
4. The Landowner, its successors and assigns, hereby grant permission lo,the City, its
authorized agents and employees, to enter upon the Property and to inspect the
slormwater management/13MP facilities whenever the City deems necessary. When
making the entry, the City will take reasonable efforts to ensure that the entry does not
unreasonably interfere with the business operttions of the Landowner, its successors and
assigns, at the Property. The purpose of inspection is to follow-up on reported
deficiencies and/or to respond to citizen complaints. The City shall provide the
Landowner, its successors and assigns, copies of the inspection findings and a directive to
commence with the repairs ifnecessary.
S. In the event the Landowner, its successors and assigns, fails to maintain the
slormwater management/13MP facilities in good N+'orking condition acceptable to the City
within 60 days after receipt of the inspection findings and a directive to commence with
the repairs, the City may enter upon the Property and take whatever steps necessary to
correct deficiencies identified in the inspection report and to charge the costs of such
repairs to the Landowner, its successors and assigns. This provision shall nol be

construed to allow the Cily to erect any structure of permanent nature on the land of the
Landowner outside of the casement for the stormwater managementlBMP facilities. It is
expressly understood and agreed that the City is under no obligation to routinely tnainlain
or repair said facilities, and in no event shall this Agreement be construed to impose any
such obligation on the City.
6. The Lartdo,�vner, its successors and assigns, will perform the work necessary to keep
these facilities in good working order as appropriate. in the event a maintenance
schedule for the stormwater managenienU13M1' facilities (including sediment removal) is
outlined on the approved plans, the schedule will be followed.
7. In the event the City pursuant to this Agreement, performs work of any nature, or
expends any funds in performance of' said work for labor, use of equipment, supplies,
materials, and the like, the Landowner, its successors and assigns, shall reimburse the
City upon demand, within thirty (30) days of receipt thereof 1br all actual costs incurred
by the City hereunder.
S. This Agreement imposes no liability of any kind whatsoever on the City and the
Landowner agrees to hold the City harmless from any liability in the event the
slorrnwater managemenVRMP facilities fail to operate properly.
9, This Agreement shall be recorded in the Registry of Decds among the land records of
Pitt County, North Carolina, and shall constitute a covenant running with the Property.
and shall be binding on the Landowner, its administrators, executors, assigns, heirs and
any other successors in interests, including any homeowners association.
IN WITNESS WFIEREOF, the parties hereto have executed this agreement on the day and year
first above written:
Compatty/Corporatioru/Partnership Name Mailing Address
By:
(Type Name)
(Type Title)

STATIi OF
COUNTY 01'
I, , a Notary Public for County,
North Carolina, certify that personally came
before me this day and acknowledged that he (or she) is of
a corporation, and that he (or she), as
being authorized to do so, executed the foregoing on
behalfof the corporation.
Witness my hand and official sea], this the day of 20
My Commission Expires:
City of Greenville. Pitt County. North Carolina-
Company/Corporation/Partnership Name
13y:
Scott P. M. Godefro
("Type Nantc)
Citv Erteincer
(•Type •Title)
STATE 01' North Carolina
COUNTY OF Pitt
NOTARY PUBLIC
a Notary Public for Pitt County, North
Carolina, certify that Scott 11. M. Godefioy personally came before me this day and
acknowledged that he is City Engineer for The City of Greenville, a corporation, and that he, as
City laigineer, being authorized to do so, executed the foregoing on behalf ofthe corporation.
Witness my hand and official sea], this the day of , 20
t(11'ts�.�,zl wenll
NOTARY PUBLIC
My Commission Expires:
Approved as to Form:
City Attorney Date

CHAPTER 9: S`I'ORMWATER MANAGEMENT AND CONTROL
Section
9-9-1 'ride
9-9-2 Purposes
9-9-3 Definitions
9-9-4 Scope; exclusions
9-9-5 Objectives
9-9-6 Protection of riparian areas
9-9-7 Calculating nitrogen and phosphorus export
9-9-8 Best management practices 113MPs) and maintenance
9-9-9 Oft -site partial offset option
9-9-10 Peak flow requirements
9-9.1 1 Exceptions to peak flow requirement
9-9-12 New subdivisions
9-9-13 Drainage projects located outside ofeity-owned rights -of -way
9-9-14 Acceptance of responsibility for certain stormwater conveyances by city
9-9-15 Duty of City Engineer to make decisions on application of policy
9-9-16 Illicit discharges and connections
9-9-t7 1_nforcement
9-9-t8 Variances
SEC. 9-9-1 TITLE.
This chapter shall be known and may be cited as the City of Greenville's "Stormwater Management and Control
Ordinance" or this chapter.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-2 PURPOSES.
(A) This chapter is adopted for the purposes of.
(1) Protecting the public health, safety and welfare by controlling the discharge of pollutants into the stormwater
conveyance system;
(2) Promoting the public health, safety and general welfare and to minimize public and private losses due to flood
conditions in specific areas by regulations designed to control the rate of release ofstormwater runoff of certain
developments where the rate of runoff has been significantly increased;
(3) Promoting activities directed toward the maintenance and improvement of surface and ground water quality;
(4) To protect the riparian buffer along all intermittent and perennial streams;
(5) Limiting the nitrogen and phosphorus load from new development;
(6) Satisfying the requirements imposed upon the City ofGreenville under the Tar -Pamlico Stormwater Rule (15A
NCAC 213.0258) and the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm
Sewer System (MS4) discharge permit issued by the state; and
(7) Establishing administration and enforcement procedures through which these purposes can be fulfilled.
9-369
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9-370 Greenville - Building, Planning and Development Regulations
(B) The provisions ofthis chapter are supplemental to regulations administered by federal and state governments.
(Ord. No. 04-1 12, passed 9-9-2004; Ord. No. 1 1-006, § 1, passed 1- 13-201 1)
SEC-9-9-3 DEFINITIONS.
For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a
different meaning.
Best management practices (13AI1's). Structural and/or non-structural controls that temporarily store or treat stormwater
runoff, which act to reduce flooding, remove pollutants, and provide other amenities.
Built -upon ar•eu (BUA). That portion of development project that is covered by impervious or partially impervious cover
including buildings, pavernent, gravel areas (e.g., roads, parking lots, paths), recreation facilities (e.g., tennis courts) and
the like. (Note: wooden slatted decks and the water area of a swimming pool are considered pervious.)
Cary. The City of Greenville, North Carolina.
Detention facility (city), A facility, constructed for the purpose of detaining stormwater runoff from a developed site to
control the peak discharge rates, that is normally maintained as a dry basin.
Detention facility (wel). A facility, constructed for the purpose of detaining stormwater runoff from a developed site to
control the peak discharge rates, that is normally maintained with a permanent pool of water.
Ditch. An open channel constructed to transfer stormwater from one area to another. This does not include any open
channel that is classified as a perennial or intermittent stream.
Drainage easement. The land required for the installation of stormwater drainage facilities and/or along a natural stream
or watercourse for preserving the channel and providing access for maintenance and operation.
Drainagefcrcililies. All ditches, channels, conduits, retention -detention systems, tiles, swales, sewers, and other natural
or artificial means of draining stormwater from land.
Drainage requirements,
(1) Minimum drainage standards as established by this chapter;
(2) Regulations promulgated by the public Works Department of the city;
(3) Obligations and requirements relating to drainage established under the Subdivision Control Ordinance ofthe
city, as set forth in Title 9, Chapter 5;
(4) Requirements stated under the Zoning Ordinance of the city as set forth in "Title 9, Chapter 4, including
floodway zoning requirements; and
(5) Conditions relating to drainage attached to a grant of variance by the Board of Adjustment of the city.
Drainuge (subs•ruface). A systern of pipes, tile, conduit or tubing installed beneath the ground surface used to collect
underground water from individual parcels, lots, building footings or pavements.
Drainage (surface). A system by which the stormwater runoff is conducted to an outlet. This would include the proper
grading of parking lots, streets, driveways and yards so that stormwater runoff is removed without ponding and flows to
a drainage Swale, open ditch or a storm sewer.
Drainage (swale). A natural or constructed waterway, usually broad and shallow, covered with erosion -resistant grasses,
used to conduct surface water from a field, diversion or other site feature.
2012 S-3

Stormwater Management and Control 9-371
Drainage .cvslem. Any combination of surface and/or subsurface drainage components fulfilling the drainage requirements
of this chapter.
Easement. A grant by the property owner of the use ofa strip of land by the public, a corporation, or persons, for specified
purposes.
Engineer. The City Engineer of the City of Greenville, North Carolina.
I<rlralerrilorial jurisdiction. The area beyond the city limits within which the planning, zoning and building regulations
of the city apply in accordance with state law. The area is delineated on the official zoning map for the city.
Impervious surfaces. Those areas within developed land that prevent or significantly impede the infiltration ofstormwater
into the soil. Common "impervious surfaces" include but are not limited to rooftops, sidewalks, walkways, patio areas,
roads, driveways, parking lots, storage areas, brick or concrete pavers, compacted gravel surfaces (roads, driveways,
parking and storage areas), and other surfaces which prevent or significantly impede the natural infiltration of stormwater
into the soil.
Illicit connection. Any unlawful connection that allows the discharge of non-stormwater to the stormwater conveyance
system or waters of the state in violation of this chapter.
Illicit discharge. Any unlawful disposal, placement, emptying, dumping, spillage, leakage, pumping, pouring, emission
or otherdischarge of any substance other than stormwater, unless associated with permitted activity as identified in section
9-9-16(A), into a stormwater conveyance, the waters of the state, or upon the land in such proximity to the same, such that
the substance is I ikely to reach a stormwater conveyance or the waters of the state.
Jurisdictional stream. A stream that has been determined to be either permanent or intermittent by North Carolina Division
of Environment and Natural Resources. These features have flora and fauna that are characteristic of streams in
undeveloped areas.
Lanel-dislurhing aclivily. Any use of the land by any person in residential, industrial, educational, institutional or
commercial development, highway and road construction and maintenance that results in a change in the natural cover or
topography and that may cause or contribute to sedimentation.
band preservation. The permanent dedication of development rights for conservation purposes to a third party on currently
undeveloped property contained wholly within one parcel as registered with Pitt County or a portion of a developed parcel
that is permanently dedication to a third party for conservation purposes.
,1lainlenance. Cleaning, spraying, removing obstructions from and making minor repairs to a drainage facility so that it
will perform the function for which it was designed and constructed.
Municipal separaie storm sewer system (,164). A stormwater conveyance or unified stormwater conveyance system
(including without limitation: roads with drainage systems, municipal streets, catch basins, stormwater detention facilities,
curbs, gutters, ditches, natural or man-made channels, or storm drains), that:
(1) is located within the corporate limits of Greenville, North Carolina;
(2) is owned or operated by the state, county, the city or other public body; and
(3) Discharges to waters of the state, excluding publicly owned treatment works, and lawful connections thereto,
which in turn discharge into the waters of the state.
New development. The following:
(l) Any activity including grubbing, stump removal and/or grading that disturbs greater than one acre of land to
establish, expand or replace a single-family or duplex residential development or recreational facility. For
2012 S-3

9-372 Greenville - Building, Planning and Development Regulations
individual single-family residential lots of record that are not part of a larger common plan of development or
sale, the activity must also result in greater than 10% built -upon area.
(2) Any activity including grubbing, stump removal and/or grading that disturbs greater than one-half an acre of
land to establish, expand or replace a multi -family residential development or a commercial, industrial or
institutional facility.
(3) Projects meeting subsection ( I) or (2) above that replace or expand existing structures or improvements and that
do not result in a net increase in built -upon area shall not be required to meet the basinwide average non -urban
loading levels.
(4) Projects meeting subsection ( I ) or (2) above that replace orexpand existing structures or improvements and that
result in a net increase in built -upon area shall achieve a 30% reduction in -nitrogen loading and no increase in
phosphorus loading relative to the previous development. Such projects may achieve these loads through onsite
or offsite measures or some combination thereof.
(5) New development shall not include agriculture, mining, or forestry activities.
Non jurisdictional stream. A stream that has been detennined to be neither permanent nor intermittent by North Carolina
Division of Environment and Natural Resources. "these features do not have the flora and fauna that are characteristic of
streams in undeveloped areas,
NI'DES or Aralional Pollutant Discharge Elimination System. A Federal Environmental Protection Agency program
initiated to reduce and eliminate pollutants reaching water bodies of all types.
Open channel. A drainage channel, which may or may not have a continuous water flow. Intended to convey suri'ace,
subsurface and stormwater runoff.
Pollution. A man-made or man -induced alteration of the chemical, physical, biological, thermal, and/or radiological
integrity of water.
Qualified proftssionul An individual who both: has received a baccalaureate orpostgraduate degree in the natural sciences
or engineering; and is trained and experienced in stormwater treatment techniques and related fields as may be
demonstrated by state registration, professional certification, or completion of coursework that enable the individual to
make sound, professicnal judgments regarding stormwater control/treatment and drainage planning.
Recicmelopnienl. Any rebuilding activity other than a rebuilding activity that:
(1) Results in no net increase in built -upon area; and
(2) Provides equal or greater stormwater control than the previous development.
Registered professional. An individual who is registered in the State of North Carolina as a professional engineer.
Riparian buffer. The 50-foot wide area directly adjacent to surface waters in the Tar -Pamlico and Neuse River Basins
(intermittentstreams,perennialstreams, lakes, pondsand estuaries),exclLid ingwet lands, For the purpose ofthisdefinition,
a surface water shall be present if the feature is approximately shown on either the most recent version of the soil survey
map by the Natural Resources Conservation Service of the United States Department of Agriculture or the most recent
version of the 1:24,000 scale (7.5 minute) quadrangle topographic maps prepared by the United States Geologic Survey
(USGS).
.Slorinwaler. The runoff' from precipitation that travels over natural or developed surfaces to the nearest stream, other
conduit, or impoundment and appears in lakes, rivers, ponds, or other bodies of water.
2012 S-3

Stormwater Management and Control 9-373
Stormwater and drainage systems. Natural and structural channels, swales, ditches, swamps, rivers, streams, creeks,
branches, reservoirs, ponds, drainage ways, inlets, catch basins, pipes, head walls, storm sewers, lakes, and other physical
works, properties, and improvements which transfer, control, convey orotherwise influence the movement ofstormwater
runoff.
Stoa'mir'uler management programs. Programs designed to protect water quality by controlling the level of pollutants in,
and the quantity and flow of, stormwater.
Waters ofthe slate. Any stream, river, brook, swamp, lake, sound, tidal estuary, bay, creek, reservoir, waterway, or other
body or accumulation of water, whether surface or underground, public or private, or natural or artificial, that is contained
in, flows through, or borders upon any portion ofthis state, including any portion ofthe Atlantic Ocean over which the state
has jurisdiction. Treatment systems, consisting ofman-made bodies of water, which were not originally created in waters
of the state and which are not the result of impoundment of waters of the state, are not "waters of the state."
(Ord. No. 04-1 12, passed 9-9-2004, Ord. No. 1 1-006, § 2, passed 1- 13-2011)
SEC. 9-9-4 SCOPE; EXCLUSIONS.
This chapter shall apply within the city limits of the city and within the extraterritorial jurisdiction of the city, with the
following exclusions:
(A) Any area or subject matter where federal, state or local government, including their agencies, have jurisdiction
preempting the city unless intergovernmental agreements have been established giving the city enforcement authority.
(B) All new development projects that have received approval from the city for a site -specific or phased development
plan before September 10, 2004, and that have implemented the development project in accordance with the vesting provisions
of the Greenville City Code shall be exempt from the requirements of the Tar -Pamlico stormwater rule. Any preliminary plats
associated with such development approved before September 10. 2004 must be recorded no later than five years from the date
of approval in accordance with section 9-5-43. Any building permit related to a site plan associated with such development
approved before September 10. 2004 must be applied for no later than two years from the approval of the site plan in accordance
with section 9-4-34. Projects that require a state permit, such as landfills, NPDES wastewater discharges, land application of
residuals and road construction activities shall be considered exempt if a state permit was issued prior to September 10, 2004.
(Ord. No. 04-112, passed 9-9-2004)
SEC. 9-9-5 OBJECTIVES.
The objectives of this chapter are to:
(A) Regulate the discharge of substances, which may contaminate or cause pollution of stormwater, stormwater
conveyances or waters of the state;
(13) Regulate connections to the stormwater conveyance system;
(C) Provide for the proper handling of spills: and
(D) Provide for the enforcement of same.
(Ord. No. 04-112, passed 9-9-2004)
SEC. 9-9-6 PROTECTION OF RIPARIAN AREAS.
(A) The Tar -Pamlico riparian buffer protection rule, 15A NCAC 213 .0259 requires that 50-foot riparian buffers be
maintained on all sides of intermittent and perennial streams, ponds, lakes and estuarine waters in the basin. The buffer rule
2012 S-3

9-374 Greenville - Building, Planning and Development Regulations
provides for certain "allowable" uses within the buffer with Division of Water Quality approval, such as road and utility
crossings.
(B) The city shall disapprove any new development activity proposed within the first 50 feet adjacent to a waterbody that
is shown on either the USGS T5 minute topographic map or the NRCS soil survey map unless the owner can show that the
activity has been approved by Division of Water Quality. Division of Water Quality approval may consist of the following:
(1) An on -site determination that Surface waters are not present;
(2) An authorization certificate from Division of Water Quality for an "allowable" use such as a road crossing or
utility line, or for a use that is "allowable with mitigation" along with a Division -approved mitigation plan. A
table delineating such uses is included in the buffer rule;
(3) An opinion from Division of Water Quality that vested rights have been established for the proposed
development activity; and/or
(4) A letter from Division of Water Quality documenting that a variance has been approved for the proposed
development activity.
(C) After site development, it shall be the responsibility of the landowner or person in possession or control of the land
to properly maintain all necessary permanent erosion and sediment control measures installed for the protection of the riparian
buffers.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-7 CALCULATING NITROGEN AND PHOSPHORUS EXPORT.
(A) The nitrogen and phosphorus export from each new development within the Tar -Pamlico River Basin must be
calculated. The nitrogen export from each new development outside the Tar -Pamlico River Basin must be calculated. These
exports will be calculated in pounds per acre per year (Ibslac/yr), Worksheets to carry out this method arc provided in the city's
Stormwater Management Program and shall be provided along; with a description of the development. It is the responsibility of
the person proposing the development to calculate and submit this information to the city.
(B) Fora given project, the methodology calculates a weighted annual load export for both nitrogen and phosphorus based
on event mean concentrations of runoff from different urban land covers and user -supplied acreages for those land covers. All
new dcvelopments must achieve it nitrogen export of less than or equal to 4.0 Ibslac/yr and a phosphorus export of less than or
equal to 0.4 Ibs/ac/yr. The applicant chooses BMPs that reduce the export to required levels.
(C) All plans shall be prepared by and sealed by a registered professional who certifies under seal that the plan, including
engineering detail. conforms to the minimum requirements established by this chapter.
(D) 'I'hc review of all plans and applications submitted to the city will be overseen by the City FIngineer.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-8 BEST MANAGEMENT PRACTICES (BMPS) AND MAINTENANCE.
(A) Best management practices in any new development shall be the entire and sole responsibility ofthe landowner except
those natural streams, channels, ditches, branches and drainage outfall lines for which the city has accepted the responsibility
for continuous maintenance.
(B) I -or residential (or commercial or industrial) development:
(1) If the computed nitrogen export is greater than 6.0 (or 10.0) lbs/ac/yr, then the landowner must either use on -site
BMPs or take part in an approved regional or jurisdiction -wide stormwater strategy or some
2012 S-3

Stormwater Management and Control 9-375
combination of these to lower the nitrogen export to at least 6.0 (or 10.0) lbslaclyr. The owner may then use one of the following
two options to reduce nitrogen from 6.0 (or 10.0) to 4.0 Ebs/aclyr.
(2) If the computed nitrogen export is greater than 4.0 Ibs/ac/yr but less than 6.0 (or 10.0) lbslaclyr, then the owner
may either:
(a) Install BMPs on -site ortake part in an approved regional orjurisdiction-wide Stormwater strategy or some
combination of these to remove nitrogen down to 4.0 lbslaclyr; or
(b) Provide treatment ofan off -site developed area that drains to the same stream to achieve the same nitrogen
mass loading reduction that would have occurred on -site.
(3) The landowner must install BMPs that also achieve a phosphorus export of less than or equal to 0.4 lbslaclyr,
but may do so through any combination of on -site and off -site measures.
(C) Each BMP shall be constructed to meet the requirements of the city's Stormwater Management Program and shalt
have a maintenance plan.
(D) Each maintenance plan shall be on file in the office of the City Engineer. Maintenance plans must be on file prior
to construction and shall contain the following information:
(1) Owner's name or names;
(2) Owner's mailing address;
(3) Deed book. page number or other recording information for the land containing the BMP(s);
(4) Any casements for maintenance. ingress, egress and regress to the BMP(s);
(5) A description of the BMP(s);
(6) Maintenance recommended for the BMP(s) to achieve the maximum effect; and
(7) Notarized signature of the owner of the BMP(s) and statement that the owner understands the requirements of
the rules and regulations for the BMP(s).
(E) Each BMP shall be maintained as required in the maintenance plan as to allow the BMP to achieve its maximum
effect. Maintenance is to be performed as needed.
(F) Maintenance of the BMP includes maintaining access for the Stormwater to reach and leave the BMP, maintenance
of the BMP structure itself, and maintaining access to the BMP for the purpose of inspections, maintenance and repairs.
(G) An annual maintenance and inspection report completed by a qualified professional shall be maintained by the owner
for each BMP in accordance with the operation and maintenance agreement submitted in the initial plan submittal. The annual
report will describe the maintenance and repair activities of the subject year, including copies of inspection and repair logs, and
note any needed modifications to the repair plan for the following year. Annual reports shall be kept on record for a minimum
of five years and shall be made available to the city upon request.
(1-1) All BMP(s) shall be inspected annually by the city. if repairs or maintenance to the 13MP is required, the city will
notify the property owner in writing that maintenance is required. The owner will have 90 days from the receipt of such written
notice to bring the BMP into proper working order.
(1) 1 fany person, having been ordered to perform such maintenance, fails, neglects or refuses to perform the maintenance
within 90 days from receipt of the order, the Public Works Director shall, at his or her own discretion, have employees of the
city or other designated persons go upon said premises and perform the necessary maintenance.
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9-376 Greenville - Building, Planning and Development Regulations
(J) The cost of repairs and work completed by the city shall be the responsibility of the owner. The city will submit a
statement of charges to be reimbursed by the owner, The owner shall have 30 days to remit payment.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-9 OFF -SITE PARTIAL OFFSET OPTION.
Landowners shall have the option of partially offsetting their nitrogen and phosphorus loads by providing treatment of
off -site developed areas. The off -site area must drain to the same classified surface water, as defined in the Schedule of
Classifications, 15A NCAC 213 .0316, that the development site drains to most directly: The developer must provide legal
assurance of the dedicated use of the off -site area for the purposes described here, including achievement of specified nutrient
load reductions and provision for regular operation and maintenance activities, in perpetuity. The legal assurance shall include
an instrument, such as a conservation easement, that maintains this restriction upon change of ownership or modification of the
off -site property. Before using off -site treatment, the new development must attain a maximum nitrogen export of six
pounds/acre/year for residential development and ten pounds/acre/year for commercial or industrial development.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-10 PEAK FLOW REQUIREMENTS.
(A) At a minimum, new development and redevelopment as described in section 9-9-3 shall not result in a net increase
in peak flow leaving the site from pre -development conditions for the one-year, 24-hour storm event.
(B) Peak now leaving the site from pre -development conditions for the one-year, 24-hour storm event shall be calculated
and the plan shall be prepared and approved using the standards of the City Engineer,. as set forth in the city's 11.1anual of
S7ancicrrc! Do.vigns crud Delu l.v and stormwater management program.
(C) The drainage plan as required by this section shall include but not be limited to a site plan showing existing proposed
buildings, storm drainage facilities, ground cover, site construction plans with grading plan, and drainage system; drainage
facility design data including area map, engineering calculations, area of impervious cover and total land area.
(D) In the event that literal interpretation of this section creates an undue hardship, the applicant may appeal to the Board
of Adjustment for a variance in whole or in part from this section.
(E) No part of this section shall be applied to structures existing prior to the effective date ofthis section nor shall existing
impervious ground cover be used in the calculation of runoff.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-I1 EXCEPTIONSTO PEAK FLOW REQUIREMENT.
Peak flow control is not required for developments that meet one or more of the following requirements:
(A) The increase in peak flow between pre- and post -development conditions does not exceed 10% (note that this
exemption makes it easier to conduct redevelopment activities); or
(13) The development occurs in a part of a drainage basin where stormwater detention can aggravate local flooding
problems as determined by the city.
(Ord. No. 04-112, passed 9-9-2004)
SEC. 9-9-12 NEW SUBDIVISIONS.
Storm drainage systems in any new subdivision shall be the entire and sole responsibility of the developer except those
natural streams, channels, ditches, branches and drainage outfall lines for which the city has accepted the responsibility for
2012 S-3

Stormwater Management and Control 9-377
continuous maintenance. All new subdivisions shall have drainage systems installed by the developer in accordance with Title
9, Chapter 5 of this Code. Any drainage ditch in a new subdivision that will require a 48-inch diameter or smaller pipe must be
piped. Larger ditches may be left open. The required pipe size shall be as determined by the engineer for the developer and
approved by the City Engineering Division.
(Ord. No. 04-1 l 2, passed 9-9-2004; Ord. No. 1 1-006, t; 3, passed 1- 13-2011)
SEC. 9-9-13 DRAINAGE PROJECTS LOCATED OUTSIDE OF CITY -OWNED RIGHT'S -OF -WAY,
(A) Drainage projects on ditches or tion jurisdictional streams; piping. The city will participate with property owners
in the installation ofstorm drains crossing private property in otherthan new subdivisions within the city's corporate limits under
the following conditions:
(1) The storm drain to be installed will carry stormwater discharged from an existing city or state street or streets
dedicated for public street purposes, including alleys, and accepted for maintenance by the city or state. Storm
drainage systems not meeting this requirement are the responsibility of the property owner(s) and the city will
not participate in the installation of such storm drains.
(2) An application for the installation of storm drains must be signed by 100% of the owners of the affected
property within the limits of the proposed project and submitted to the City Engineering Division.
(3) The property owners must dedicate a drainage easement of width, length, and type as specified by the Director
of Public Works. The dedication of such easement will be at no cost to the city.
(4) The shortest distance in which the city will participate in the installation of storm drainage will be 300 linear
feet; any shorter distances than 300 linear feet must be deemed feasible by the City Engineering Division before
city participation.
(5) All pipe sizes, structural accessories, discharge points and otherspecifications shall be as determined by the City
Engineering Division.
(6) The city will furnish all labor and equipment and the adjoining property owners will pay for all materials for
construction. These materials shall be as determined necessary by the City Engineering Division and shall
include headwalls, manholes, catch basins and all other structures normal to a complete storm drainage system.
All monies for materials must be deposited by property owners before construction is started.
(7) All authorized work shall be performed by the city, its agents and/or contractors. The city will direct all
necessary activities including but not limited to design, engineering, contracting, and construction.
(8) Nothing in this subsection (A) shall be construed, interpreted or applied in a manner to mean that the city will
participate in any way in the construction of any box culvert or other structure to be built or constructed in place.
The piping of streams shall be restricted in all instances to that drainage where pre -cast or preassembled pipe
will be of sufficient capacity, as calculated by the City Engineering Department, for the piping and enclosing
herein mentioned and contemplated.
(9) Cost for each property owner shall be determined by dividing the total cost of materials by the total footage of
property owners adjoining the proposed pipe locations directly and multiplying the result by the footage of each
individual owner to determine his share of the cost.
(10) A II storm drainage construction on private property shall be done on a scheduled basis so as not to interfere with
other city projects and then only as budgeted funds of the city are available.
(l 1) The city will not participate in the construction of any storm drainage systems which will require a pipe size
larger than 48 inches due to the greatly increased cost of labor, equipment and engineering required due to the
use of box culverts, paved channels and other types of solutions.
2012 S-3

9-378 Greenville- Building, Planning and Development Regulations
(13) Drainage projects on ditches or non -jurisdictional streams; erosion. The city will stabilize banks on ditches or
non -jurisdictional streams crossing private property in other than new subdivisions within -the city's corporate limits under titre
following conditions:
(1) The ditch or non -jurisdictional stream carries stormwater discharged from an existing city or state street or
streets dedicated for public street purposes, including alleys, and accepted for maintenance by the city or state.
Storm drainage systems not meeting this requirement are the responsibility of the property owner(s) and the city
will not participate in such drainage projects.
(2) An application for bank stabilization must be signed by 100%of the owners of the affected property within the
limits of the proposed project and submitted to the City Engineering Division.
(3) The property owners must dedicate a drainage easement of a width, length, and type as specified by the Director
of Public Works. The dedication of such easement will be at no cost to the city.
(4) Materials and construction methods shall be as determined necessary by the City Engineering Division. All
authorized work shall be performed by the city, its agents and/or contractors. The city will direct all necessary
activities including but not limited to design, engineering, contracting, and construction.
(5) All drainage projects on private property shal I be done on a scheduled basis so as not to interfere with other city
projects and then only as budgeted funds of the city are available.
(C) Druinuge projects on jurisdiclional streams; piping. The city will not participate in the piping of jurisdictional
streams.
(D) Drainagepr•(Yectsonjurisdictionalstreantti; erosion.Thecity will stabilize orrestore banks crossing private property
in other than new subdivisions within the city's corporate limits under the following conditions:
(1) The jurisdictional stream carries stormwater discharged from an existing city or state street or streets dedicated
for public street purposes, including alleys, and accepted for maintenance by the city or state. Storm drainage
systems not meeting this requirement are the responsibility of the property owner(s) and the city will not
participate in such drainage projects.
(2) An application for bank stabilization or stream restoration must be signed by 100%ofthe owners of the affected
property within the limits of the proposed project.
(3) The property owners must dedicate a drainage easement ofa width, length, and type as specified by the Director
of Public Works. The dedication of such easement will be at no cost to the city.
(4) Materials and construction methods shall be as determined necessary by the City Engineering Division, All
authorized work shall be performed by the city, its agents and/or contractors. The city will direct all necessary
activities including but not limited to design, engineering, contracting, and construction.
(5) All drainage projects on private property shall be done on a scheduled basis so as not to interfere with other city
projects and then only as budgeted funds of the city are available.
(E) Drainage assistance projects listed in subsections (A), (B) and (D) above may be funded with stormwater utility funds
or other funds provided that all of the following eligibility criteria are met:
{ 1) The drainage system is not part ofa water quality treatment facility or water quantity control device that was
required to be constructed and maintained as part of an approved development.
(2) The drainage system is not located on property which is undergoing development or redevelopment unless the
development/redevelopment project is funded in part by other city funds.
2012 S-3

Stormw•ater Management and Control 9-378A
(3) The project shall be the most cost effective, reasonable and practical alternative to correct the existing problem,
as determined by the Director of Public Works. Any excess costs above the determined most cost effective,
reasonable and practical alternative shal I be borne entirely by the property owner. Design criteria shall meet,
but are not limited to, the following criteria,
(a) The proposed project shall meetcurrent city stormwater design standards to the maximum extent practical,
(b) Existing ditches or non jurisdictional streams shall not be piped unless engineering reasons require such
work or significant cost savings would be realized, and
(c) Jurisdictional streams and their associated buffers shall be protected to the maximum extent practical.
(4) The application of the above factors and the determination as to eligibility forstormwater utility fundingorother
funding shall be made by the Director of Public Works. Property owners may appeal any decision by the
Director orPublic Works to the City Manager, if property owners are not satisfied with the decision ofthe City
Manager, property owners may appeal any decision by the City Manager to City Council.
(F) Stonm drainage crossing private property, which does not carry storm drainage from existing city or state system
streets, dedicated for public street purposes and accepted for maintenance by the city or state, is the responsibility of the property
owners and the city will not participate in the installation of stone drains therefore.
(G) No action or inaction of the city pursuant to the policy established by this section shall impose upon the city, its
agents, officers or employees any responsibility of liability of any kind, past or future, relating to any person or property. The
petitioners shall agree to covenant to and hold the city harmless from any death, personal injury or property damage resulting
from the work. No such action by the city shall be considered as a taking or appropriation of any stream, drain or ditch as a part
of the city's drainage system.
(H) The conditions set forth in this section shall be binding on the heirs, successors, assigns and grantees of the property
owners.
(1) Nothing in this section shall be construed, interpreted or applied in such manner as to aid or assist in the subdivision
or development of property in the city. The policy set out herein shall be applicable only to those properties for which no new
subdivision or development is anticipated or planned.
(1) The intent of this section is not to transfer responsibility or liability to the city for drainage system components on
property not owned by the city that carry stormwater. Rather, it is to establish criteria and priorities to be used when making
available funds for work on drainage system components located outside of city -owned rights -of -way.
(K) City participation in work on drainage system components outside of the right-of-way is limited to the extent to which
funds are available for such purpose and no entitlement to receive funds for such work arises from this section.
(Ord. No. 11-006, § 4, passed 1-13-201 1)
SEC. 9-9-14 ACCEPTANCE Of RESPONSIBILITY FOR CERTAIN STORMWATER CONVEYANCES BY
CITY.
(A) The city accepts the responsibility for the maintenance, upkeep and installation of necessary structures, located within
a city right-of-way within the city's corporate limits and not within a state right-of-way, in the following natural streams as listed
below:
(1) Greens Mill Run, Tar River westerly to city litnits west of Memorial Drive.
(2) Fornes Branch, from Greens Mill Run to NC 43;
2012 S-3

9-37813 Greenville - Building, Planning and Development Regulations
(3) Reedy Branch, from Greens Mill Run to Greenville Boulevard; and
(4) Any other jurisdictional stream located within the city's corporate limits in which the city has participated in
a drainage project pursuant to the provisions of this chapter only within the limits of such project.
(B) The responsibility of the city for the maintenance of streams, located within the city's corporate limits and not within
a state right-of-way, includes only the removal of trees that block the flow of the stream. The city will only remove that portion
of a tree that is blocking or is an imminent threat to block stream flow, Property owners are responsible for maintaining the
vegetation to the standards established by the state (riparian buffer rule). Removal of trash in a stream is the property owner's
responsibility including in any adjoining right-of-way.
(Ord. No. 1 1-006, § 5, passed l-13-201 1)
SEC. 9-9-15 DUTY OF CITY ENGINEERTO MAKE DECISIONS ON APPLICATION OF POLICY.
All decisions concerning application of the stornwater management and control policy and any matters related to the policy
shall be the responsibility of the City Engineer.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC. 9-9-16 ILLICITDISCIIARGES AND CONNECTIONS.
(A) lldicil eischarges.
(1) No person shall cause or allow the discharge, emission, disposal, pouring or pumping directly or indirectly to
any stonmwater conveyance, the waters of the state, or upon the land in such proximity to the same (such that
the substance is likely to reach a stormwater conveyance or the waters of,the state), of any fluid, solid, gas or
other substance, other than stormwater; provided that non-stormwater discharges associated with the following
activities are allowed and provided that they do not significantly impact water quality;
(a) 1-ilter backwash and draining associated with swimming pools;
(b) 1-ilter backwash and draining associated with raw water intake screening and filtering devices;
(c) Condensate from residential or commercial air conditioning;
(d) Residential vehicle washing;
(e) Flushing and hydrostatic testing water associated with utility distribution systems;
(f) Discharges associated with emergency removal and treatment activities, for hazardous materials,
authorized by the federal, state or local government on -scene coordinator;
2012 S-3

Stormwater Management and Control 9-379
(g) Uncontaminated ground water (including the collection or pumping of springs, wells, or rising ground
water and ground water generated by well construction or other construction activities):
(h) Collected infiltrated stnrmwaler from foundation or footing drains;
(i) Collected ground water and infiltrated stormwater from basement or crawl space pumps.,
6) Irrigation water;
(k) Street wash water;
(l) Flows from fire fighting;
(m) Discharges from the pumping or draining of natural watercourses or waterbodies;
(n) Flushing and cleaning of stormwater conveyances with unmodified potable water,
(o) Wash water from the cleaning of the exterior of buildings, including gutters, provided that the discharge
does not pose an environmental or health threat; and
(p) Other non -stormwater discharges for which a valid NPDES discharge permit has been approved and issued
by Department of Environmental Management, and provided that any such discharges to the Municipal
Separate Storm Sewer System shall be authorized by the city.
(2) Prohibited substances include but are not limited to: oil, anti -freeze, chemicals, animal waste, paints, garbage
and litter.
(f3) Illicil connections.
(1) Connections to a stormwater conveyance or stormwater conveyance system that allow the discharge of
non-stormwater, other than the exclusions described in subsection (A) above, are unlawful. Prohibited
connections include but are not limited to: floor drains, waste water from washing machines or sanitary sewers,
wash water from commercial vehicle washing or steam cleaning, and waste water from septic systems.
(2) Where such connections exist in violation of this section and the connections were made prior to the adoption
of this provision or any other ordinance prohibiting such connections, the property owner or the person using
the connection shall remove the connection within one year following application of this regulation; provided
that this grace period shall not apply to connections which may result in the discharge of hazardous materials
or other discharges which pose an immediate threat to health and safety, or are likely to result in immediate
injury and hann to real or personal property, natural resources, wildlife or habitat.
(3) Where it is detennined that the connection:
(a) May result in the discharge of hazardous materials or may pose an immediate threat to health and safety,
or is likely to result in immediate injury and harm to real or personal property, natural resources, wildlife
or habitat, or
(b) Was made in violation of any applicable regulation or ordinance, the City Engineer or his or her designee
shall designate the time within which the connection shall be removed. In setting the time limit for
compliance, the city shall take into consideration:
I . The quantity and complexity of the work;
2. The consequences of delay;

9-380 Greenville - Building, Planning and Development Regulations
The potential harm to the environment, to the public health, and to public and private property; and
The cost of remedying the damage.
(C) Spills.
(1) Spills or leaks of polluting substances discharged to, or having the potential to be indirectly transported to the
stormwater conveyance system, shall be contained, controlled, collected and removed promptly. All affected
areas shall be restored to their preexisting condition.
(2) Persons associated with the spill or leak shall immediately notify the City Fire Chief or his or her designee of
all spills or leaks of polluting substances. Notification shall not relieve any person of any expenses related to
the restoration, loss, damage or any other liability which may be incurred as a result ofthe spill or leak, nor shall
such notification relieve any person from other liability which may be imposed by state or other law.
(D) Nuisance, Illicit discharges and illicit connections which exist within the city limits or within one mile thereof are
hereby found, deemed and declared to be dangerous or prejudiced to the public health or public safety and are found, deemed
and declared to be public nuisances. Such public nuisances shall be abated in accordance with the procedures set forth in section
12-3-4.
(Ord. No. 04-1 12, passed 9-9-2004)
SEC.9-9-17 ENFORCEMENT.
(A) 11whorily to enter.
(1) Any authorized city personnel shall be permitted to enter upon public or private property for the purposes of
observation, inspection, sampling, monitoring, testing, surveying and measuring for compliance. Should the
owner or occupant of any property refuse to permit such reasonable access, the City Engineer or his or her
designee shall proceed to obtain an administrative search warrant pursuant to G.S. 15-27.2 or its successor.
(2) No person shall obstruct, hamper or interfere with any such representative while carrying out his or her official
duties. For the purpose of enforcing this chapter, the City Engineer or any employee so designated by him or
her may at any time enter upon a property to inspect or repair any part of the stormwater system.
(13) Civil penallies.
(1) Illicit discharges. Any designer, engineer, contractor, agent or any other person who allows, acts in concert,
participates, directs or assists directly or indirectly in an illicit discharge_ in violation of this chapter shall be
subject to civil penalties as follows.
(a) For first-time offenders, if the quantity of the discharge is equal to,or less than five gallons and consists
of domestic or household products in quantities considered ordinary for household purposes, the person
shall be assessed a civil penalty not to exceed $100 per violation or per day for any continuing violation,
and if the quantity of the discharge is greater than five gallons or contains non -domestic substances,
including but not limited to process waste water, or if the person cannot provide clear and convincing
evidence of the volume and nature of the substance discharged, the person shall be assessed a civil penalty
not to exceed $1,000 per violation or per day for any continuing violation.
(b) For repeat offenders, the amount of the penalty shall be double the amount assessed for the previous
penalty, not to exceed $10,000 per violation or per day for any continuing violation.
(c) In determining the amount of the penalty, the City Engineer or his!or her designee shall consider:
I . The degree and extent ofharm to the environment, the publ is health, and public and private properly;

Stormwater Management and Control 9-381
2. The cost of remedying the damage;
3. The duration of the violation;
4, Whether the violation was willful;
S. The prior record of the person responsible for the violation in complying or failing to comply with
this chapter;
6. The costs of enforcement to the public; and
7. The amount of money saved by the violator through his, her or its noncompliance.
(2) Illicit connections. Any person found with an illicit connection in violation of this chapter and any designer,
engineer, contractor, agent or any other person who allows, acts in concert, participates, directs or assists
directly or indirectly in the establishment of an illicit connection in violation of this chapter, shall be subject
to civil penalties as follows:
(a) First-time offenders shall be subject to a civil penalty not to exceed $500 per day of continuing violation.
(b) Repeat violators shall be subject to a civil penalty not to exceed $1,000 per day of continuing violation.
(c) In determining the amount of the penalty, the City Engineer or his or her designee shall consider:
I. The degree and extent of harm to the environment, the public health, and public and private property;
2. The cost of remedying the damage;
3. The duration of the violation;
4. Whether the violation was willful;
5. The prior record of the person responsible for the violation in complying or failing to comply with
this chapter;
6. The costs of enforcement to the public; and
7. The amount of money saved by the violator through his, her or its noncompliance.
(d) Procedures for assessing penalties pursuant to illicit connections.
1. The penalties shall be assessed by the City Engineer or his or her designee. No penalty shall be
assessed until the person alleged to be in violation is served written notice of the violation by
registered mail, certified mail -return receipt requested, or personal service. Refusal to accept the
notice shall not relieve the violatorofthe obligation to pay the penalty. The notice shall describe the
violation with particularity and specify the measures needed to come into compliance. The notice
shall designate the time within which the measures must be completed. In setting the time limit for
compliance, the city shall take into consideration:
a. The quantity and complexity of the work;
b, The consequences of delay;
c. The potential harm to the environment, the public health, and public and private property; and

9-382 Greenville - Building, Planning .and Development Regulations
The cost of remedying the damage.
The notice shall warn that failure to correct the violation within the specified time period will result
in the assessment of a civi I penalty and/or other enforcement action. I f after the allotted time period
has expired, and the violation has not been corrected, the penalty shall be assessed from the date of
receipt of notice of violation and each day of continuing violation thereafter shall constitute a
separate violation under this section.
(3) Other violations. Any person found in violation of other provisions of this chapter, not specifically enumerated
elsewhere, shall be subject to a civil penalty not to exceed $250 per violation or per day for any continuing
violation.
(4) llayment/collection procedures. Penalties shall be assessed by the City Engineer or his or her designee. No
penalty shall be assessed until the person alleged to be in violation is served written notice of the violation by
registered mail, certified mail -return receipt requested, or personal service. Refusal to accept the notice shall
not relieve the violator of the obligation to pay the penalty. The City Engineer or his or her designee shall make
written demand for payment upon the person in violation. Ifthe payment is not received or equitable settlement
reached within 30 days after demand for payment is made, the matter shall be referred to the City Attorney for
institution of civil action in the name of the city, in the appropriate division of the general court of justice in
Pitt County for recovering the penalty.
(C) ltjunclive relief.
(1) Whenever the City Engineer has a reasonable cause to believe that any 'person is violating or threatening to
violate this chapter, rule, regulation, order duly adopted or issued pursuant to this chapter or making a
connection to a stormwater conveyance or stormwater conveyance system other than in accordance with the
terms, conditions, and provisions of approval, the city may, either before or after the institution of any other
action or proceeding authorized by the code, institute a civil action in the name of the city for injunctive relief
to restrain and abate the violation or threatened violation.
(2) The institution of an action for injunctive relief under subsection (C) shall not relieve any party to such
proceeding from any further civil or criminal penalty prescribed for violations of this Code.
(D) Criminal penalties. Any person who knowingly or willfully violates any provision of this chapter, rule, regulation,
order duly adopted or issued pursuant to this chapter shall be guilty ofa misdemeanor, punishable by a fine not to exceed $500
or imprisonment for not longer than 30 days. Each violation shall be a separate offense.
(Ord, No. 04-1 12, passed 9-9-2004)
SEC.9-9-18 VARIANCES.
The Board of Adjustment as established by the city shall hear and decide requests for variances from the requirements of
this chapter. When practical difficulties or unnecessary hardships would result from carrying out the strict letter of this chapter,
the Board of Adjustment may vary or modify any provision of this chapter so that the spirit of the chapter shall be observed,
public safety and welfare secured, and substantial justice done.
(Ord. No. 04-1 12, passed 9-9-2004)

Appendix F. Illicit Discharge Screening Report Forms
This appendix contains several forms developed by the City of Greenville for use in its illicit discharge
detection and elimination program. The following forms are provided:
1. Outfall Reconnaissance Inventory/Sample Collection Field Sheet
2. Water Quality ComplainUinspcction Record
40

Appendix G. Sample Public Education Action Report and Plan
Public Education Action Report and Plan
Jurisdiction: Date Submitted:
Activity
Point Value
#1 Done Last Yr
(10/_ - 91_)
Points
Cost I
# Planned Next
Yr(10/ - 91__)
Points
Anticipated
Anticipated
Cost
1
Demonstration Sites (for BMPs)
4 each
2
Local Newspaper Article
2 each
3
Technical Workshop (1st year, 2 required)
4 each
4
Environmental Contest / Field Day
4 each
5
Arrange Speakers For Civic Organizations
1 each
6
Clean Water Proclamation, with Newspaper Article
2
7
Web Page / Web Site Links
2 / year
8
Pet Waste Ordinance
5 / year
9
Factsheets/Brochures/Flyers/Enviro freebies (public places)
2 / year
10
Utility Bill Inserts or Messages on Bills
3 / year
11
Close-out Packages I Info for New Homeowners
3/ year
12
Storm Drain Marking (24 minimum per year)
21 year
13
Sponsor new/expand Adopt -A -(Street -or -Stream) Program
4 / year
14
Recognition Program (environmentally friendly participants)
1 / year
15
Toll Free Environmental Hotline (1-800 or Local)
3 / year
16
VWIN Monitoring Force (Water Quality Reporting)
61 year
17
Other Water Quality Reporting Program
3 / year
18
Major Media Advertising
6 / year
19
Local Access 7V or Radio Spots
31 year
Total Points Reported:
Total Points Planned:
Please attach copies of articles, flyers, photographs, etc. documenting your activities, labeled for each type of activity.
Note: Ongoing Activities will continue to receive the education points for each year that they are in effect.
Note: !f your locality has put together an exceptional effort for any of the above activities, you may be entitled to additional points for that activity. Please
attach a description of the activity, a merit rationale, and a point pr2eosal.
Submitted By:
Title:
Date:
Signature:
44

Detail of Reported Activities I I I
Brief Description of Activity Targeted Audience Date Cost Comments
Attachments
....... .... . ........ . ......... . ... ...... . ........ . ... . ........ . . ....... -- .......... . .... . . .... . ..... .. ... ................... . ........... ...
. . . ......... . . ...... . ........ . . ............. ....... ........... ........ . . ........ .............. . . ....... .. . ... ------
Detail of Planned Activities I
Brief Description of Activity Targeted Audience Date Anticipated Comments
Planned Cost Attachments
. . ............ ...... . .. . ... ........ . .. ......... .. . ...... . .. ....... ...... ...... . ............ ...
.............. . .......... . . -- ------ ------------- ...........
45

Proposed Action Plan for 2004-2005
Jurisdiction: City of Greenville, NC Dated Submitted: June 4, 2004
Activity
Point Value
# Done Last Yr
(101 - 91—)
Points
Cost
# Planned Next
Yr(10104 - 9105)
Points
Anticipated
Anticipated
Cost
1
Demonstration Sites (for BMPs)
4 each
1
4
$38,000
2
Technical Workshop (1st year, 2 required)
4 each
2
8
$1,000
3
Arrange Speakers For Civic Organizations
1 each
3
3
4
Web Page i Web Site Links
21 year
1
2
5
Factsheets/Brochures/Flyers/Enviro freebies (public places)
2 1 year
2
4
$2,500
6
Utility Bill Inserts or Messages on Bills
3 / year
4
12
7
Storm Drain Marking (24 minimum per year)
2 1 year
2
4
$250
8
Sponsor new/expand Adopt -A -(Street -or -Stream) Program
41 year
1
4
$500
9
Recognition Program (environmentally friendly participants)
11 year
1
1
10
Toll Free Environmental Hotline (1-800 or -Local)
31 year
1
3
Total Points Reported:
Total Points Planned: 45
$42,250
Please attach copies of articles, flyers, photographs, etc. documenting your activities, labeled for each type of activity.
Note: Ongoing Activities will continue to receive the education points for each year that they are in effect.
Note: If your locality has put together an exceptional effort for any of the above activities, you may be entitled to additional points for that activity. Please
attach a description of the activity, a merit rationale, and a 2ointproposa1.
Submitted By: David T. Brown, P. E.
Title:
City Engineer
Date7l
June 4, 2004
Signature:
This is a draft plan, and costs are estimated.
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