NCS000465_APPLICATION_20160420

STORMWATER DIVISION CODING SHEET
M54 PERMITS
PERMIT NO.
o 0
DOC TYPE
0 FINAL PERMIT
❑ ANNUAL REPORT,
APPLICATION
0 COMPLIANCE
❑ OTHER
DOC DATE
❑ O�o 0�a-�
YYYYMMDD

Town of Morrisville
Post Office Box t66
Morrisville, North C.11•ollrla 2756o
April 13, 2016
Mike Randall
NCDEQ-DEMLR-Stormwater Permitting Program
1612 Mail Service Center
Raleigh, NC 27699-1612
RE: NPDES Ph.2 Application for Permit Renewal — NCS000465
Dear Mr. Randall:
Phone: [phone]
hax: 919.468.6ot1
WWXV.to6vllof nlol'l'lsVllle.ol,g
Please find attached the Town of Morrisville's application and supporting documents for renewal of
our NPDES Ph.2 stormwater permit NCS000465.
Should you have any questions or require additional information, please contact me at (919) 463-
6216 or [e-mail]. Thank you for your assistance with this matter.
Sincerely,
TOWN OF MORRISVILLE
4-qo;z�
44v "
Robert D. Patterson, P.E.
Stormwater Engineering Manager
Enclosures
RECEIVED
DENN-Ar1D QUALITY

NPDES STORMWATER PERMIT RENEWAL APPLICATION FORM
This application form is for use by Local Governments 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 one copy of a Narrative of The Stormwater
Management Program. The required Narrative of The Stormwater Management Program is described in
Section VII of this form.
I. NAME OF LOCAL GOVERNMENT, PERMIT NUMBER, AND EXPIRATION DATE
Name of Local Government
Town of Morrisville
Permit Number
NCS000465
Expiration Date
November 10, 2016
II. CO -PERMIT APPLICATION STATUS INFORMATION
(Complete this section only if co -permitting)
a. Do you intend to co -permit
with another regulated public ❑ Yes ❑■ No
entity? M
b. If yes, name of regulated
public entity APR 20 MS
c. If yes, have legalArv't7
agreements been finalized ❑ Yes ❑ No 1'37n MWA7ER P LIAL T r
between the co- ermittees.
III. 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
0 Yes ❑ No
of your permit obligations?
b. If yes, identify each entity and the element they will be implementing
• Name of Entity
wake County
• Element they will
Construction Site Runoff Controls
implement
• Contact Person
Melinda Clark, Stormwater Programs Manager
• Contact Address
PO Box 550, Raleigh, NC 27602
• Contact Telephone
919-856-5531
Number
c. Are legal agreements in
place to establish
Recent ILA has been signed by Morrisville;
0 Yes ❑ No in process of being signed by Wake Co.
responsibilities?
Page 1
5WU-264 June 17, 2015

PW --1.
NPDES RPE Stormwater Permit Application
IV. DELEGATION OF AUTHORITY (OPTIONAL)
The signing official may delegate permit implementation authority to an appropriate staff member.
This delegation must name a specific person, their title/position. Documentation of board action
delegating permit authority to this person/position must be provided.
a. Name of person to which permit
authority has been delegated
b. Title/position of person above
V. SIGNING OFFICIAL'S STATEMENT
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
IV above may sign the official statement below.
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penaltles for submitting false information,
including the possibility of fines and imprisonment for knowing violations.
., I ) /7
Signature
Name
Martha Paige
Title
Town Manager
Street Address
100 Town Hall Dr.
PO Box
PO Box 166
City
Morrisville
State
NC
Zip
27560
Telephone
919-463-6150
E-Mail
[e-mail]
VI. LOCAL GOVERNMENT 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
Robert D. Patterson, PE
b.
Title
Stormwater Engineering Manager
c.
Street Address
260-B Town Hali Dr.
d.
PO Box
PO Box 166
e.
City
Morrisville
f.
State
NC
g.
Zip
27560
h.
Telephone Number
919-463-6216
j.
E-Mail Address
[e-mail]
Page 2
SWU-264 June 17, 2015

NPDES RPE Stormwater Permit Application
VII. NARRATIVE STORMWATER MANAGEMENT PROGRAM
Attach one copy of a narrative describing the Stormwater management program. The report must
be presented in the following order.
1. Population and Estimated Growth Rate
2. Jurisdictional Area
3. Describe Stormwater Conveyance System
4. Estimated Land Use
5. Identify the Receiving Streams
6. Identify TMDLs (if applicable)
7. Identify impaired streams, likely sources, and existing programs that address the impairment
(if applicable)
8. List any existing water quality programs
9. Identify and describe any partnerships and/or inter -local agreements
10. Describe any state programs
11. Identify any other entity that the regulated public entity relies on to implement or manage its
stormwater program.
12. Identify points of contacts
13. Describe the public education and outreach program
14. Describe the public involvement and participation program.
15. Describe the Illicit Discharge Detection and Elimination Program.
16. Describe the post -construction stormwater program
Describe practices to inspect and maintain municipally -owned facilities
17. Describe practices to inspect and maintain structural stormwater control devices
18. Describe practices to reduce polluted stormwater runoff from municipally -owned streets,
roads, and public parking lots, piped and vegetative conveyances, manholes, cleanouts, drop
inlets, and drainage structures.
19. Describe any training programs for municipal staff.
20. Describe spill response procedures for those at Municipally Owned and/or Operated Facilities
as well as those in the public right-of-way.
Page 3
5WU-264 June 17, 2015

National Pollutant Discharge Elimination System
Phase II Stormwater Management Program
PERMIT NO. NCS000465
Stormwater Management Plan
Revised: October 6, 2015
o Q �
o
town of
MOQQ16VILLE
Stormwater
260 Town Hall Drive — Suite B
P.O. Box 166
Morrisville, NC 27560
Prepared by:
Robert D. Patterson, P.E.
Sr. Stormwater Engineer
Town of Morrisville
Engineering Department

TABLE OF CONTENTS
INTRODUCTION ............................. __................................................. ........................ ...........
1. Storm Sewer System Information............................................................................................2
1.1 Population Served..........................................................................
_......... ................................... 2
1.2 Growth Rate.......................................................................................
........................................... 2
1.3 Jurisdictional Area..........................................................................................................................2
1.4 MS4 Conveyance System .................. __......... ...............................................................................
2
1.5 Estimated Land Use...................................................................................................................3
1.6 TMDL Identification........................................................................................................................3
2. Receiving Streams..........................................................................................................................3
3. Existing Water Quality Programs...............................................................................................4
3.1 Local Programs.............................................................................................
............................. ...4
32 State Programs...............................................................................................................................4
4. Permitting Information...............................................................
............ ............4
4.1 Responsible Party Contact List.....................................................................................................4
42 Organizational Chart......................................................................................................................5
4.3 Signing Official...............................................................................................................................5
4.4 Duly Authorized Representative......................................................................................................5
5. Co -Permit Status Information.........................................................................................................5
6. Reliance on Another Entity.............................................................................................................5
6.1 Name of Entity.............................................................................................
.................................. ..5
6.2 Elements Implemented .................................................. .......................................
...................... _..5
6.3 Contact Information ................ ....................... ............... __........ ...............
......... ................. ............. 6
6.4 Legal Agreement.............................................................................................................................6
7. Stormwater Management Program Plan........................................................................................6
7.1 Public Education and Outreach........................................................................................__..........6
7.2 Public Involvement and Participation..............................................................................................8
7.3 Illicit Discharge Detection and Elimination...................................................................................10
7.4 Construction -Site Stormwater Runoff Control...............................................................................11
7.5 Post -Construction Stormwater Management................................................................................12
7.6 Pollution Prevention/Good Housekeeping for Municipal Operations
............................................15
APPENDICES..........................................................
..............................................................................
...24
Organization Chart
Inter -local Agreements
Illicit Discharge Detection and Elimination SOP
Pollution Prevention & Good Housekeeping SOPs
Administrative Manual
Unified Development Ordinance (UD0)
Engineering Design n Manual (EDCM)
i n & Construction ...._

Town of Morrisvifle
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
INTRODUCTION
North Carolina's number one water quality problem is stormwater runoff pollution. As
stormwater flows across impervious surfaces, it picks up various pollutants, such as oil &
grease, excess nutrients, bacteria and sediment. Polluted stormwater flows down our storm
drains and ditches where it is discharged, untreated, into our streams, rivers, and lakes.
Stormwater runoff pollution causes adverse impacts to aquatic ecosystems, poses human
health risks, and can greatly increase the cost of treating our drinking water.
Program Background
In 1972, the National Pollutant Discharge Elimination System (NPDES) program was
established under the authority of the Federal Clean Water Act. Phase 1 of the NPDES
Stormwater program was established in 1990. It required NPDES permit coverage for
municipalities with populations of 100,000 or more.
Phase 11 of the NPDES Stormwater program was signed into law in December 1999. The Phase
II program extended permit coverage to smaller (< 100,000 pop.) communities and public
entities that own or operate a municipal separate storm sewer system (MS4). It required these
smaller communities to develop a stormwater program and obtain an NPDES permit for
stormwater discharges.
In North Carolina, the Department of Environmental Quality (NCDEQ), Division of Energy,
Mineral, and Land Resources (DEMLR) administers the NPDES Stormwater program. The
Division of Water Resources (DWR) administers the nutrient strategy programs (Jordan Lake,
Neuse, etc.). The program requires the Town of Morrisville to develop, implement, and enforce
a stormwater program designed to reduce the discharge of pollutants from the MS4 to the
maximum extent practicable. The program is implemented through an NPDES permit in phases
over five years. Pursuant to the permit the stormwater program included the best management
practices (BMPs) for the following six minimum measures:
1, Public Education & Outreach
2. Public Involvement & Participation
3. Illicit Discharge Detection & Elimination
4. Construction Site Runoff Controls
5. Post -Construction Site Runoff Controls
6. Pollution Prevention & Good Housekeeping for Municipal Operations
The Town's Stormwater Management Program is administered by the Engineering Department.
The Sr. Stormwater Engineer position serves as the Stormwater Program Manager, and the
Stormwater Division Supervisor. This position also oversees the riparian buffer program and
FEMA floodplain program. A copy of the organizational chart is included in the appendix.
Page 13

Town of Morrisville
Comprehensive Storm water Management Plan Last Revised: October 6, 2015
Storm Sewer System Information
1.1 Population Served
23,699 2015 ToM Special Census
1.2 Growth Rate
Estimated growth rate ............................ ___ ....... 355.0% from the 2000 Census (5,208)
Estimated growth rate ................................ .......... 27.6% from the 2010 Census (18,576)
Estimated total potential buildout pop . ........................................ ......................... -25,141
*source: 2015 ToM Planning Dept. Est.; excludes apartments
1.3 Jurisdictional Area
Town of Morrisville Limits................................................................................8.4 sq. mi.
Totalincluding ETJ...........................................................................................9.8 sq. mi.
1.4 MS4 Conveyance System
Most stormwater runoff begins in any given sub -basin as sheet flow (creating a "non -
point source" for surface water pollution) and ultimately becomes concentrated flow at
the receiving stream. In the Town's urban areas, stormwater runoff often becomes
concentrated prior to the receiving stream as it enters roadside ditches or piped
conveyance systems. As development occurs in the Town of Morrisville, an increasing
portion of runoff will flow across man-made impervious surfaces, and become
concentrated along typical curb and gutter systems conveying it to constructed pipe
networks or ditches. The runoff from most of the earlier development (pre 1999) flows
directly to surface waters, without any form of treatment. For development since
implementation of the Town's 1999 stormwater ordinance and 2005 Ph.II permit, the
runoff flows to various , detention systems and other structural Stormwater Best
Management Practices (BMPs) within the Town of Morrisville's jurisdiction prior to
entering the receiving stream. The majority of BMPs are on private property. The Town
does own, operate, and maintain nine (9) structural BMPs that are on Town property or
within the public right-of-ways and/or drainage easements.
As with most modern storm sewer systems, the Town's MS4 is not combined with any
portion of its sanitary sewer system or other discharges (unless by illicit connections).
Currently, the responsibility for the stormwater conveyances and infrastructure rests
solely with the owner, or entity, which possesses specific rights to the system. Private
drainage systems and drainage ditches are maintained solely by property owners or
other responsible parties (i.e., homeowner's associations). NCDOT streets, storm
drainage, and right-of-way that traverse throughout the Town's ETJ are maintained by
NCDOT. The Town assumes responsibility for the upkeep of storm drainage pipes and
roadside ditches that exist inside the Town -owned right-of-way or drainage easements,
and several Town -owned structural BMPs. The Town has incorporated the stormwater
Page 14

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
management program through the Unified Development Ordinance (UDO, effective July
1, 2014, Updated July 28, 2015) and the Engineering Design & Construction Manual
(EDCM, effective July 1, 2014). Those two documents detail how the Town will enforce
and regulate stormwater issues within its jurisdiction. They supersede the previous
Stormwater Management Ordinance (adopted February 28, 2012) and the Design and
Construction Ordinance. A primary goal of the Town's stormwater program is to assign
responsibility to private owners and public agencies alike and hold all parties, including
itself, accountable for pollutants that enter the MS4 and for the water quality of its
receiving streams.
1.5 Estimated Land Use
The Following breakdown is based on GIS data using Wake County parcel data dated
2014.
DISTRICT
ACRES
% OF ZONED
LAND IN
MORRISVILLE
NNJPGO
390.3
7.4
VLDR
123.1
2.3
..:;.�, r-.--mac
•
666.9
12.7
65.6
1.2
WDR
635.1
12.1
NAC
141,1
2.7
C-NAC
4.3
0.1
BAC
68.3
1.3
CAC
95.9
1.8
• •
268.5
5.1
HCV
27.6
0.5
M5
15.2
0.3
72.6
1.4
TGR
121.8
2.3
RT
49.8
0.9
RNP
52.3
1.0
200.8
3.8
•
572.8
10.9
r
96,1
1.8
924.7
17.6
MINE
94.7
1.8
TOTAL
5257.3
100
1.6 TMDL Identification
Page 15
Table 3.1.1. Zoning Districts i
Established
BASE DISTRICTS
+�Conservation Districts' � '�'��'`°
Park Greenway Open S ace JRG01 (Sec- 3.2-2 1
d 6 t. 'R�1'>{ xi.l .6 i
6; Residential Districh,ti;ar
Very Low Density Residential (VLDR}_(Sec 3.3.2}
Low Density Residential (LDR) Svc 3.3.3)
Medium Density Residential (MDR} (Sec. 3.3.4)
High Dernity Residential (HDRL Sec. 3.3.5
s yMR
AdivtyCenler Distncts,r
Neighborhood Activity Center (NAC] (Sec. 3.4-2f Y
Business Actmil. Center (!AC) Sec- 3.4.3 1
Commonity Activity Center (CAC) (Sec. 3.4.4) 7
6'HisRegional Activity Centet (RAC) (Sec 3.45 1
toric
ansit-Oriented Development (TOD) (Sec. 3.4.6)7nter'Districls"! Crossroads Village (t!a) {Sec. 3.5.2)
I Main Street (MS) Sec 3.5.3 1
1 Town Center Commercial (TCC)Sec_ 3.5.4
Town Center Residential (TCR) (Sec. 3.5.5}
Residential Transition (RT) (Sec 3.5.6}
1 Residential Neighborhood Preservation (RNP) Sec 3 5 7
wmbp,6; ice;.rc
ust ^�Commercia! a_nd Indrial Dislrids'
_ Corridor Commercial (CC) (Sec. 3.6.21�
Officellnstitutional OI)(Sec. 3.6.3
Industrial Management IM Se[- 3.6.4
CONDITIONAL DISTRICTS
One parallel to each Base Qislrict above (a.g., C-NAC)
PLANNED DEVELOPMENT DISTRICTS
Mixed -Use Piarsned Development MUPD} Sec 3.7-2 {
OVERLAY;DISTRICTS.
Airport Overlay -A (AO -A) (Sec- 3.8.2) YI
_A�rport Overlay-B (AO-B)_(Sec-_3.0-2)
F"plain Overlay {FO) Sec3.8-31
Town Center Conservation Overlay (TCCO) (Sec. 3.6.4 �J
Section 303(d) of the Clean Water Act requires States to develop a list of waters not
meeting federal water quality standards and to correct the impaired waters by
developing a management strategy or a total maximum daily loading (TMDL). According

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised., October 6, 2015
to North Carolina's 2012 Final 303(d) List, portions of Crabtree Creek [27-33-(1) & 27-
33-(3.5)a] and Brier Creek [27-33-4] are the only streams within the Town's jurisdiction
listed as impaired. Crabtree Creek from the source to backwaters of Crabtree Lake is
currently impaired due to a poor benthic community bioclassification. Crabtree Creek
from the backwaters of Crabtree Lake to Cary WWTP is currently impaired due to
turbidity and for fish consumption based on a DHHS advisory for polychlorinated
biphenyls (PCBs). Brier Creek from the source to Crabtree Lake are impaired for fish
consumption based on a DHHS advisory for polychlorinated biphenyls (PCBs). The
Basinwide Plan recommends that local initiatives are needed to improve water quality in
Crabtree Creek and DWR encourages development of a land use plan and stormwater
program that protects the water quality in Crabtree Creek. The Town's NPDES Phase II
Stormwater Management Program is consistent with the recommendations in the
Basinwide Plan and should help improve water quality in Crabtree Creek through
implementation of the Stormwater Management Program (UDO Article 7), and Stream
Buffer Protection Program (UDO Article 6). The Town is currently developing a plan as
required by Section H of the NPDES permit.
The State of North Carolina has also developed management strategies that set forth
specific target levels of nutrient loading for certain nutrient sensitive waters. The Clean
Water Responsibility Act of 1997-458 requires the development of concentration limits
for wastewater discharges and restoration goals for nutrient sensitive waters.
Additionally, the SL 2005-190, adopted by the General Assembly in 2005 required the
development of nutrient strategies for drinking water supply reservoir watersheds. The
Neuse River Basin Management Strategies set forth various strategies (including
Riparian Buffer Rules) with the goal of reducing nitrogen to more acceptable levels.
Additionally, the Jordan Lake Water Supply Nutrient Strategy Rules were adopted by the
NC General Assembly in August 2009. A portion of Morrisville lies within the Upper New
Hope Arm of the Jordan Lake Watershed which was placed on the North Carolina's list
of impaired waters under Section 303(d) of the federal Clean Water Act for exceeding
the Chlorophyll A standard. The Jordan Lake Rules include target level nutrient
loadings and riparian buffer rule requirement that are applicable to the entire Cape Fear
River portion of the Town. From 2012, up until the passing of SL 2015-246 in
September 23, 2015, the UDO incorporated these measures and applied them to the
entire Town; including the Neuse River Basin portion. The nutrient targets no longer
apply in either basin, until the Jordan Lake new development rules are no longer
delayed.
Page 16

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
2. Receiving Streams
Approximately 20% of the land area of the Town lies within the Upper New Hope Arm of
the Jordan Lake Watershed, which is part of the Cape Fear River Basin, with the
remaining 80% draining to the Neuse River Basin via several tributaries. Specifically, the
Town drains to the receiving waters listed below.
Receiving
Water Quality
Use
Basin
Stream
Stream Segment
Classification
Support
Water Quality Issue(s)
Name'
Ratin 2
M
Kit Creek
`-16 41 1 17 2" (0 3) .
C NSW
Not"
nla
J a�
w ..Ra
—Rated
Not
00
Kif:Creek �
16 4.1-I `17.'2b�(0 7)
f�s�
WS IV NSW
:x Rated
nla
:
Brier Creek
27-33-4
C; NSW
Impaired
Standard Violation -
PCB
Coles
27-33-3
C; NSW
Not
nla
Branch
Rated
Poor Bioclassification -
Crabtree
27-33-(1)
C; NSW
Impaired
Ecological/Biological
Creek
Integrity Benthos
Poor Bioclassification -
Ecological/Biological
Z
Crabtree
27-33-(3 5)a
B; NSW
Impaired
Integrity Benthos
Creek
Standard Violation —
PCB
Stirrup Iron
27-33-4-2
C; NSW
Not
nla
Creek
Rated
Indian
UT to Crabtree
Na
Not
nla
Creek
Creek
Rated
1 Receiving streams (except Indian Creek) determined using NCDWR Integrated Report GIS layers. Indian Creek
identification and naming based on local knowledge.
z We Support Rating and Water Quality Parameter as given in integrated Report (303(d) list).
Page 17

Town of Morrisville
Comprehensive Storrnwater Management Plan Last Revised: October 6, 2015
3. Existing Water Quality Programs
3.1 Local Programs
The following programs and ordinances are being implemented within the Town's
jurisdiction.
To meet its regulatory requirements, the Town addresses most water quality issues
within the Engineering Department through enforcement of the UDO and EDCM as part
of the site plan and construction drawing review process. The Engineering Department
is also responsible for Stream Origin Determinations and implementation of the riparian
buffer ordinance by delegation from NCDWR. The only exception is the erosion and
sediment control program which, for development projects that disturb more than one
acre of land, are referred to Wake County for erosion control review, in accordance with
the NC Sedimentation Pollution Control Act of 1973. (Note: Wake County operates their
program under delegated authority from the NC DEMLR).
The Town is also in the process of coordinating with DWR and DEMLR to perform
inspections of the stormwater BMPs installed as part of 401 Certifications for facilities
within the Town; and potentially in the future, Industrial NPDES stormwater permitted
facilities.
3.2 State Programs
The State of North Carolina developed its own water quality standards and
classifications program pursuant to G.S. 143-214.1 and 15A NCAC 02B .0100 and
.0200. The State's program began in the early 1950's and has been modified over time
to be consistent with the Federal Clean Water Act as well as its own basin -wide
approach to water quality.
One aspect of the state basin -wide studies, which applies directly to the Town's surface
waters, is the classification of certain waters as nutrient sensitive waters (NSW
supplemental classification). The Neuse River NSW Management Strategy became
effective in 1998 and established a goal to reduce the average annual nitrogen loading,
relative to background levels, by a minimum of 30% by 2004. This management
strategy imposed basin -wide buffer regulations and required larger and growing
municipalities to implement NSW stormwater programs to help meet the 30% nitrogen
reduction goal. The Town of Morrisville was not one of these mandated municipalities,
however the Town voluntarily adopted and applied the nutrient sensitive water policies
from the Neuse River Basin regulations within its Design and Construction Ordinance
(DCO) on November 26, 2007. Through the DCO the Town enforced the Neuse River
nutrient reduction limits and buffer regulations throughout its entire jurisdiction, including
the Cape Fear River Basin until the Stormwater Management Ordinance took effect or
February 28, 2012, which imposed the stricter Jordan lake Nutrient Management
through the Town, which meets or exceeds the Neuse River strategy requirements. The
new UDO and EDCM now supersede those previous documents.
Page 18

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
Legislation adopted during the 2009 legislative session by the North Carolina General
Assembly regarding the Jordan Lake Water Supply Nutrient Strategy Rules has been
incorporated into the Town's Stormwater Program through the Stormwater Management
Ordinance. Per the adopted legislation, Town of Morrisville is mandated to meet the
specific nutrient loading and buffer requirements for the Jordan Lake watershed.
Approximately 20% of Morrisville's land area is in the Cape Fear River Basin, all of
which is in the Jordan Lake watershed. The Jordan Lake Nutrient rules include target
level Nitrogen and Phosphorus loading and riparian buffer rule requirements that are
applicable to the Cape Fear River portion of the Town, and have been applied
throughout the Town for added water quality benefit and consistency of regulations
throughout town. From 2012, up until the passing of SL 2015-246 in September 23,
2015, the UDO incorporated these measures and applied them to the entire Town;
including the Neuse River Basin portion. The nutrient targets no longer apply in either
basin, until the Jordan Lake new development rules are no longer delayed.
The Town does rely on NCDOT to maintain stormwater facilities and programs within
their road rights -of -way.
Page 19

Town of Morrisville
Comprehensive SlormwaterManagement Plan Last Revised: October 6, 2015
4. Permitting Information
The Town's Stormwater Program is administered by the Engineering Department. The
Sr. Stormwater Engineer position oversees the program as the Stormwater Division
Supervisor. A copy of the organizational chart is included in the appendix,
4.1 Responsible Party Contact List
Overall implementation and oversight of the Town's Stormwater Program is provided
through the Town's Engineering Department. The following table lists each separate
component program that will make up the Town's overall Stormwater Program as well as
the current individual and job title responsible for implementing it:
Component Program
Responsible'
Position
Overall Administration
Town Manager
Program Oversight
Town Engineer
Public Education & Outreach Program
Sr. Stormwater
Engineer
Public Involvement & Participation Program
Sr. Stormwater
Engineer
Illicit Discharge Detection & Elimination
Sr. Stormwater
Program
Engineers
Construction Site Runoff Program
Wake County
Post -Construction Stormwater Management
Sr. Stormwater
Program
Engineers
Pollution Prevention/ Good Housekeeping
Sr. Stormwater
(Municipal O&M) Program
Engineer
TMDL's
Sr. Stormwater
Engineer
4.2 Organizational Chart
The Town's organization chart is included in the Appendix.
3 Martha Wheelock 1 [phone] 1 mwheelock a0townofmorrisville oro
4 Richard D. Cappola Jr., P.E. 1 [phone] 1 RCappola(c_townofmorrisviIle .oLg
s Robert D. Patterson, P.E. 1 [phone] 1 rpallerson[cp
.town ofmorrisville.org
6 See contact information below in section 6.3
Page 1 10

Town of Morrisville
Comprehensive Storn7water Management Plan Last Revised: October 6, 2015
4.3 Signing Official
The Town operates under a council-manager form of government. The Town Manager is
responsible for management and oversight of the Town's daily operations. Contact
information is listed below:
Martha Wheelock - Town Manager
PO Box 166
Morrisville, NC 27560-0166
(Office) 919-463-6150
(Fax) 919-481-2907
MWheelockoTownofMorrisvilie. org
4.4 Duly Authorized Representative
Not applicable. The Town of Morrisville is not delegating permit application responsibility
to someone other than the signing official.
5. Co -Permit Status Information
The Town is not co -permitting with another entity.
6. Reliance on another Entity
The Town relies on Wake County to provide the Town with services to implement the
Town's Construction Site Runoff Controls program. The Town has adopted the Wake
County Sediment and Erosion Ordinance in Part C, Article II, Section 12 of its Zoning
Ordinance and established an agreement for Wake County to administer its sediment
and erosion control program. The Town of Morrisville currently relies on Wake County
Environmental Services to administer the sedimentation and erosion control program
within the Town's jurisdiction in accordance with the North Carolina Sedimentation
Pollution Control Act of 1973. The Town will continue this relationship as part of their
NPDES Phase II Program to meet the requirements of the Construction Site Stormwater
Runoff Control minimum measure.
6.1 Name of Entity
Wake County Department of Environmental Services - Erosion, Flood and Stormwater
Division
6.2 Elements Implemented
Oversight and implementation of the Town's NPDES Phase II construction site runoff
controls program.
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Town of Morrisville
Comprehensive Stormwater Management Plan
6.3 Contact Information
Last Revised: October 6, 2015
Wake County Department of Environmental Services
P.O. Box 550
Raleigh, NC 27602
http:llwww.wakegov. comlwater/stormwater/erosion/PagesldefauIt.aspx
Betsy Pearce, CFM, CPSWO
Cape Fear- Jordan Lake
(Office) 919-868-6414
Betsy. Pea rcena wakegov.com
Shawn Springer
Neuse - Crabtree Ck
(Office) 919-369-6135
shawn.springer('1wake, o
6.4 Legal Agreement
Recognizing the need for assistance and the benefits of local agreements, the Town
entered into an inter -local agreement with Wake County effective October 23, 2006.
Under this agreement, the Wake County Department of Environmental Services -
Erosion, Flood and Stormwater Division provides the Town with services to implement
the Town's construction site stormwater runoff control program. A copy of the inter -local
agreement is included in the appendix. This agreement is currently in the process of
being updated.
7. Stormwater Management Program
The following sections describe the Town's stormwater management program and
measurable goals for each BMP. While the BMPs under each minimum measure are not
expected to change over the life of this stormwater management plan, measurable goals
may be modified, removed, or new goals added. Changes may be necessary to meet
changes in resources, or to be more effective in reducing impacts to the MS4.
Modifications to these goals will be documented within the required annual report.
The Town is currently in the process of developing a stormwater CIP database and
ranking system. This with track stormwater CIP projects, drainage complaints, and illicit
discharges,
7.1 Public Education and Outreach
1. Objectives for Public Education and Outreach:
Distribute educational materials to the community or conduct equivalent outreach
activities about the impacts of storm water discharges on water bodies and the steps the
public can take to reduce pollutants in storm water runoff.
The Town's stormwater public education and outreach program includes:
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
Distribution of educational materials at Town events and making them available at
several Town properties (Town Hall, Public Safety and Municipal Services (PSMS), etc.),
Town Stormwater website www,ToMstormwater.or , Inclusion of a Stormwater Matters
article in the monthly Morrisville Connection newsletter, Booth presence at Morrisville's
Green Day annually, BMP educational displays at Town owned BMPs, Stormwater
"giveaways" (rain gauges, magnets, etc.), Membership in the Clean Water Education
Partnership to provide educational materials and support to the public via radio and TV
commercials, website, and handouts.
2. BMPs for Public Education and Outreach
a.) The goals and objectives of the Town are to inform and distribute educational
materials to the community and/or conduct equivalent outreach activities about the
impacts of pollutants in storm water discharges on water bodies and the steps that
the public can take to reduce pollutants in storm water runoff.
b.) The target pollutants and/or stressors of concern in the receiving waters of the Town
of Morrisville MS4 are:
• Sediment and other suspended solids
o This is the number 1 pollutant in North Carolina, including Morrisville, due
to the highly erodible Triassic and Clay -based soils.
o Sediment can adversely impact waterways and aquatic environments.
Due to recent drought cycles, maintaining vegetative cover has been an
issue. For new construction, erosion control is necessary to keep
sediment on site.
o Likely Sources are non -stabilized lawns and steep slopes, newly graded
and denuded areas on construction sites, flashy urban runoff, and mining
and materials distribution centers.
• Excess Nutrients such as Nitrogen and Phosphorus
o Town lies within the Neuse River Basin and Cape Fear River Basin
(Jordan Lake watershed), both of which have been classified Nutrient
Sensitive waters by NCDEQ.
o These pollutants affect the ability of the receiving stream to support
biological communities by promoting high algal growth in downstream
waterbodies causing low oxygen levels.
o Likely sources include excess fertilizer from lawns, atmospheric
deposition on impervious areas, urban runoff, pet waste and organic
matter, and nutrients in eroded soils. The Town is planning to explore
adoption of a pet waste ordinance that would help educate and reduce
nutrients and fecal coliform in the runoff.
Litter/Yard Waste
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
o Litter and yard waste can block stormwater conveyances, and as litter
and yard waste decompose they introduce chemicals and additional
nutrients into the storm system, eventually entering the surface water
body. Additionally, yard waste placed along embankments can limit
natural vegetation from establishing, making them unstable and allowing
erosion.
The target audiences include various groups within the MS4 area to include, but not
limited to:
• Homeowners
o will be informed of the proper use and handling of yard wastes to protect
surface waters. The Town's Public Works Department provides
scheduled collection of yard wastes. Citizens are also instructed to bag
the yard waste and not pile it in the road or gutter.
o will be educated on proper fertilizer & herbicide application rates to
minimize nutrient loading in the receiving streams, as they are highly
likely to less experience performing these actions.
o will also be informed of Town programs for recycling.
o will be informed about harmful pathogens that can pollute stormwater if
pet waste is not collected and disposed of properly.
• Landscaping companies will be informed of the proper use and handling of yard
wastes and fertilizer application rates to minimize nutrient loading in the receiving
streams, and commercial applicators will be required to complete the Jordan
Lake Fertilizer Training course
• Programs will also be aimed at teaching school children in the town the
importance of water conservation and protection of our natural water systems
from litter and pollutants.
• Contractors and developers in the area will be targeted to educate on the effects
of increased sediment loads on the receiving streams.
• Local restaurant and industrial groups will be targeted to inform them of the
impacts of grease and hazardous materials entering the storm drain system.
• Special interests groups (HOAs, Churches, Boy/Girl Scout Troops, etc.) will be
given educational presentations about the effects polluted stormwater on water
bodies as requested.
Residential and industrial/commercial issues include:
• Developments with high impervious surfaces
• Properties under construction with active land disturbance activities
• Existing properties with facilities in need of maintenance or repair
• Industrial NPDES facilities permitted by DEMLR
The Town shall:
• Distribute educational materials to the community by making them available at
Town facilities frequented by residents
• Maintain the stormwater hotline: 919-463-SOAK (7025)
• Maintain the informational website: www.ToMstormwater.org
• Conduct outreach activities (presentations, booth set-ups, etc.) addressing
impacts of storm water discharges on water bodies and the steps the public can
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
take to reduce pollutants in storm water runoff through educational programs,
local events (such as the annual Spring Fest, etc.)
• Place informational flyers at Town Hall, PSMS, etc.
• Provide articles to the local newsletter.
o Paper copies of the newsletter will be distributed at various events and
educational programs.
o Work with the Town's public information officer to post the newsletter on
the Town's website and send a notification when a new issue is available
to those subscribed to the Town's email notification list
• Partner with other local government departments conducting environmental
education to conduct school programs as resources are available.
• Participate in the Clean Water Education Partnership (CWEP):
httpa/www,nccwep.org
7.2 Public Involvement and Participation
The Town's stormwater public involvement and participation program includes
maintaining an informational website with contact information and participation in local
events and festivals such as Morrisville's Green Day, NC Big Sweep, partnering with
volunteer groups, as requested, for stream monitoring and cleanup, Town Council and
Planning Board, rain barrel program, and the stormwater citizen advisory committee
(RAIN Committee).
The Town will conduct public meetings as needed to allow local citizens to review and
provide input on the stormwater management plan.
The Town shall provide stormwater content and information on the Town's website at:
www.ToMstormwater. orq
The Town shall provide promote and maintain a hotlinelhelpline at 919-463-SOAK
(7025).
The Town shall distribute handouts and information on rain barrels, yard waste,
fertilizer/pesticide/herbicide application, and other stormwater related issues to local
citizens through events, festivals, and information requests.
The Town shall conduct up to two (2) Stormwater Program workshop annually to inform
the residents of the various aspects of the program, answer questions, and distribute
additional literature. This may be done as part of another meeting (Town Council, RAIN
Committee, etc.) or standalone meetings.
The Town will present semi-annual reports to the Town Council; or at another frequency
as directed by Town Council.
7.3 Illicit Discharge Detection and Elimination
The objectives of the Town's Illicit Discharge Detection and Elimination Program are:
a. Implement and enforce a program to address the detection and elimination of
illicit discharges into the MS4.
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
b. Maintain a storm sewer system map, showing the location of all BMPs, major
outfalls, and the names and location of all waters of the state that receive
discharges from those outfalls;
c. Prohibit, through ordinance, or other regulatory mechanism, non -storm water
discharges except as allowed in this permit and implement appropriate
enforcement procedures and actions;
d. Implement a plan to detect and address non -storm water discharges, including
illegal dumping, to the MS4;
e. Inform public employees, businesses, and the general public of hazards
associated with illegal discharges and improper disposal of waste; and
f. Address non -storm water discharges or flows (i.e., illicit discharges) if identified
as significant contributors of pollutants to the MS4,
The Town has an Illicit Discharge Detection and Elimination Ordinance included in
Article 7 of the UDO. The Town shall annually review the IDDE ordinance or other
regulatory mechanisms, or adopt any new ordinances or other regulatory mechanisms
that provide the permittee with adequate legal authority to prohibit illicit connections and
discharges and enforce the approved IDDE Program.
The Town shall develop and maintain a current map showing major outfalls and
receiving streams. The Town maintains a Geographic Information System (GIS)
database that includes drainage areas, receiving streams, land use information, zoning,
soils, floodplain data, water quality designations, impervious cover and other pertinent
data. This information is updated periodically often based on actual site reconnaissance,
such as on site surface water identifications. A field survey of all Town maintained
stormwater infrastructure has recently been completed. This is planned to be updated to
include private drainage systems in the next few years as resources allow. This GIS
database includes all stormwater drainage structures (pipes, inlets, outfalls, and BMPs).
The Town shall develop and maintain a program for conducting dry weather flow
monitoring in accordance with a written procedure for detecting and removing the
sources of illicit discharges.
The Town shall develop and maintain written procedures for conducting investigations of
identified illicit discharges.
The Town tracks all investigations and documents the date(s) the illicit discharge was
observed; the results of the investigation; any follow-up of the investigation; and the date
the investigation was closed.
The Town trains appropriate municipal staff who as part of their normal job
responsibilities, may come into contact with or otherwise observe an illicit discharge or
illicit connection to the storm sewer system.
The Town informs public employees, businesses, and the general public of hazards
associated with illegal discharges and improper disposal of waste. The Town conducts
one (1) training session for Town employees in positions frequently exposed to potential
IDDE events and provides information regarding appropriate training sessions provided
by other entities. In addition, the Town is exploring the possibility of providing training to
all newly hired employees through the Town's LAUNCH training program.
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
The Town shall promote, publicize, and facilitate a reporting mechanism for the public
and staff to report illicit discharges and establish and implement citizen request response
procedures.
The Town tracks the issuance of notices of violation and enforcement actions as
administered by the permittee.
7.4 Construction -Site Stormwater Runoff Control
Pursuant to 40 CFR 122.35(b), the Town relies on the Wake County Sediment and
Erosion Control Program to comply with this minimum measure. The Wake County
Sediment and Erosion Control Program effectively meets the maximum extent
practicable (MEP) standard for Construction Site Runoff Controls by permitting and
controlling development activities disturbing one or more acres of land surface and those
activities less than one acre that are part of a larger common plan of development as
authorized under the Sediment Pollution Control Act of 1973 and Chapter 4 of Title 15A
of the North Carolina Administrative Code. The Wake County Sediment and Erosion
Control Program continues to be monitored by the State to ensure the County effectively
meets the MEP standard established by the Sediment Pollution Control Act of 1973 and
Chapter 4 of Title 15A of the North Carolina Administrative Code.
The NCGO10000 permit establishes requirements for construction site operators to
control waste such as discarded building materials, concrete truck washout, chemicals,
litter, and sanitary waste at the construction site that may cause adverse impacts to
water quality. This NPDES General Permit is issued by Wake County along with the
sediment and erosion control approval. Inspection and enforcement is handled by DWR.
The Town is currently in the process of developing a MOA with DWR so that the Town
can assist with inspections for this general permit for projects within the Town.
The Town provides and promotes a means for the public to notify the appropriate
authorities of observed erosion and sedimentation problems by promoting the existence
of the DEMLR "Stop Mud" hotline, the Town's Stormwater Hotline, and providing a
"Report a Concern" link on the Town's website at:
http://www.townofmorrisviIle.org/ReguestTracker.aspx .
7.5 Post -Construction Stormwater Management
The objectives of the Town's Post -Construction Stormwater Management Program is to:
a. Implement and enforce a program to address stormwater runoff from new
development and redevelopment projects that disturb greater than or equal to
one acre residential or one-half acre non-residential, including projects less than
the disturbance threshold that are part of a larger common plan of development
or sale. The program shall ensure that controls are in place that would prevent or
minimize water quality impacts.
b. Implement strategies which include a combination of structural and/or non-
structural best management practices (BMPs) appropriate for the community;
C. Use the UDO and other regulatory mechanisms (EDCM, NCDENR BMP Design
Manual, etc.) to address post -construction runoff from new development and
redevelopment projects; and
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
d. Provide adequate long-term operation and maintenance of BMPs
The Town maintains through an ordinance, or other regulatory mechanism, adequate
legal authorities to meet the objectives of the Post -Constructions Site Runoff Controls
program. In February 2012 (revised July 2012), the Town formed the Stormwater
Management Ordinance (SMO), an independent regulatory mechanism based on the
Jordan Lake program model ordinance requiring additional post -construction stormwater
controls. The LIDO supersedes the SMO and integrates the post -construction
stormwater requirements. In addition to the specific post -construction stormwater
requirements listed above, the Town employs other policies, practices and regulations
that help protect water quality of its receiving waters. Measures currently in place help to
protect natural resources, protect open space, preserve trees, and regulate
redevelopment and street design. Through future policies the Town plans to address
green infrastructure elements and practices and incorporate a detailed list and
description of those measures into a "design manual". In addition, the Town will likely
implement guidance currently being developed by the DENR LID STRT. During its UDO
process, the Town is evaluating additional measures, especially aspects of low impact
development and improved site design to minimize water quality impacts even further.
Stormwater staff is working with the Town's planning staff during the pre -development
phase of projects to help guide site design that minimizes water quality impacts
The Town has the authority to review designs and proposals for new development and
redevelopment to determine whether adequate stormwater control measures will be
installed, implemented, and maintained.
The Town has the authority to request information such as stormwater plans, inspection
reports, monitoring results, and other information deemed necessary to evaluate
compliance with the Post -Construction Stormwater Management Program.
The Town has the authority to enter private property for the purpose of inspecting at
reasonable times any facilities, equipment, practices, or operations related to stormwater
discharges to determine whether there is compliance the Post -Construction Stormwater
Management Program.
The Town has adopted the NCDENR Stormwater BMP Manual, and created a Design
Manual (EDCM) that incorporates Town preferred methods that meets the requirements
in the BMP Manual. The Town utilizes both structural and non-structural BMPs to treat
and control post -construction stormwater. Non-structural BMPs include stream buffers,
flood hazard zone protection, landscape requirements, and educational materials.
Structural stormwater BMPs include those listed in the BMP Manual. The Town will
consider non-standard practices that may not be covered in the current BMP Manual on
a case by case basis if the applicant can provide evidence that they meet or exceed the
intent of the ordinance. The Town may in the future establish a program similar to
DEMLR's PEP program for evaluating proprietary devices.
The Town conducts site plan reviews of all new development and redeveloped sites that
disturb greater than or equal to one acre for residential, and one-half acre for non-
residential, including sites that disturb less than the above thresholds that are part of a
larger common plan of development or sale. The site plan review addresses how the
project applicant meets the performance standards and how the project provides for
long-term maintenance.
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised. October 6, 2015
The Town maintains an inventory of projects with post -construction structural stormwater
control measures installed and implemented at new development and redeveloped sites,
including both public and private sector sites located within the Town's jurisdictional area
that are covered by its post -construction ordinance requirements. The Town is currently
in the process of developing a MOA with DWR to facilitate inspecting stormwater BMPs
within the Town's jurisdictional area that were installed under a 401 Certification from
DWR.
The Town provides mechanisms so that development activities maintain the project
consistent with approved plans. This includes approval of as -built record drawings,
detailed inspections annually, inspections after significant maintenance activities, and
"windshield" inspections after rainfall events above 1 inch.
The Town requires an operation and maintenance plan, and permanent drainage
easements, for the long-term operation and maintenance of the structural BMPs
required by the program, as well as a monetary (cash) maintenance security that is held
by the Town.
To ensure that all stormwater control measures meet the Town's performance
standards and are being maintained pursuant to the maintenance agreement, the
permittee has a written inspection program for structural stormwater controls installed
pursuant to the Town's post -construction program. The Town inspects new structural
stormwater BMPs at the time the project is complete to ensure compliance with
approved plans. New BMPs are tracked using GPSIGIS technology. Annual inspection
reports were previously submitted by the owner and certified by an approved
professional. Starting in FY 2014, the Town began conducting these annual
inspections/reports for all BMPs as a service of the Town's stormwater utility fee.
Follow-up inspections are conducted by the Town as warranted and inspection reports
are provided to owner outlining follow up actions.
The Town maintains records of inspections, findings and enforcement actions.
The Town makes available through paper or electronic means, ordinances, post -
construction requirements, design standards checklist, and other materials appropriate
for developers.
The Town tracks the issuance of notices of violation and enforcement actions as
administered by the permittee.
7.6 Pollution Prevention & Good Housekeeping for Municipal Operations
The Town is continually improving the pollution prevention/good housekeeping program
that includes three primary components:
1. Operation and Maintenance (O&M) of facilities and operations owned and
operated by the Town with the potential for generating polluted stormwater
runoff,
2. O&M of municipally -owned streets, roads, and public parking lots within the
jurisdictional area, and
Page 1 19

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: October 6, 2015
3. O&M of municipally -owned or operated structural stormwater controls and
drainage systems.
The Town maintains an inventory of facilities and operations owned and operated by the
Town with the potential for generating polluted stormwater runoff. The following facilities
are owned by the Town and included in the Good Housekeeping plan:
1. Parks and Recreation Areas
2. Emergency Services (Emergency Response, Police and Fire Departments)
3. Vacant Properties
4. Permittee Buildings
5. Public Owned Open Spaces
6. Salt/Sand Storage Areas
7. Fleet Maintenance
8. Vehicle Washing Facilities
9. Material Storage Facilities
10. Streets & Parking Lots
11. Floor Drains
12. Oil / Water Separator(s)
The Town also maintains public road rights -of -way (ROW) in portions of their jurisdiction
that are not owned by NCDOT, including catch basins and conveyance systems.
The Town maintains and implements an O&M program for municipal owned and
operated facilities with the potential for generating polluted stormwater runoff,
municipally -owned streets, roads, and public parking lots and Municipally -owned or
operated structural stormwater controls. The O&M program specifies the frequency of
inspections and routine maintenance requirements. Within non-NCDOT road ROW, the
Town maintains and implements an O&M program for municipally -owned streets, roads,
and public parking lots within the jurisdictional area. The Town maintains and
implements an O&M program for municipally -owned or operated structural stormwater
controls.
The Town conducts appropriate Good Housekeeping training for new employees and
provides "refresher" training to employees as warranted. As staff time and resources
allow, the Town intends to expand Good Housekeeping training to all Town employees,
even those not directly involved with Good Housekeeping requirements.
The Town currently washes vehicles at a commercial auto wash facility.
APPENDICES
Organization Chart
Inter -local Agreements
Illicit Discharge Detection and Elimination SOP
Pollution Prevention & Good Housekeeping SOPs
Administrative Manual
Unified Development Ordinance (UDO)
Engineering Design & Construction Manual EDCM
Page120

Town of Morrisville
NPDES Phase I1 Stormwater Permit
Organization Chart

I
National Pollutant Discharge Elimination System
Phase 11 Stormwater Management Program
PERMIT NO. NCS000465
Stormwater Management Plan
Last Revised: July 1, 2013
Prepared by:
Robert D. Patterson, P.E.
Stormwater Engineer
Town of Morrisville
Engineering Department
�N
852
CnRO
Town of Morrisville
260 Town Hall Drive — Suite B
P.O. Box 166
Morrisville, NC 27560

TABLE OF CONTENTS
INTRODUCTION.......................................................................................................
1. Storm Sewer System Information...........................................................
1.1 Population Served.........................................................................................
1.2 Growth Rate..................................................................................................
1.3 Jurisdictional Area.........................................................................................
1.4 MS4 Conveyance System............................................................................
1.5 Estimated Land Use..................................................................................
1.6 TMDL Identification.......................................................................................
2. Receiving Streams.........................................................................................
3. Existing Water Quality Programs
3.1 Local Programs.............................................................................................
3.2 State Programs..............................................................................................
4. Permitting Information...................................................................................
4.1 Responsible Party Contact List....................................................................
4.2 Organizational Chart.....................................................................................
4.3 Signing Official..............................................................................................
4.4 Duly Authorized Representative ......................................
5. Co -Permit Status information........................................................................
6. Reliance on Another Entity............................................................................
6.1 Name of Entity................................................................................................
6.2 Elements Implemented..................................................................................
6.3 Contact Information.......................................................................................
6.4 Legal Agreement............................................................................................
7. Stormwater Management Program Plan .......................................................
7.1 Public Education and Outreach.....................................................................
T2 Public Involvement and Participation.............................................................
7.3 Illicit Discharge Detection and Elimination....................................................
7.4 Construction -Site Stormwater Runoff Control ................................................
7.5 Post -Construction Stormwater Management .................................................
7.6 Pollution Prevention/Good Housekeeping for Municipal Operations .............
APPENDICES............................................................................................................
Organization Chart
Inter -local Agreements
Illicit Discharge Detection and Elimination Plan (1n Progress)
Good Housekeeping Plan (In Progress)
Stormwater Ordinance
Stormwater/Water Quality Related Polices, Practices and Regulations (In Progress)
.....I...........1
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I....I........... 5
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Town of Mornsville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
INTRODUCTION
North Carolina's number one water quality problem is stormwater runoff pollution. As
stormwater flows across impervious surfaces, it picks up various pollutants, such as oil &
grease, excess nutrients, bacteria and sediment. Polluted stormwater flows down our storm
drains and ditches where it is discharged, untreated, into our streams, rivers, and lakes.
Stormwater runoff pollution causes adverse impacts to aquatic ecosystems, poses human
health risks, and can greatly increase the cost of treating our drinking water.
Program Background
In 1972, the National Pollutant Discharge Elimination System (NPDES) program was
established under the authority of the Federal Clean Water Act. Phase I of the NPDES
Stormwater program was established in 1990. It required NPDES permit coverage for
municipalities with populations of 100;000 or more.
Phase 11 of the NPDES Stormwater program was signed into law in December 1999. The Phase
II program extended permit coverage to smaller (< 100,000 pop.) communities and public
entities that own or operate a municipal separate storm sewer system (MS4). It required these
smaller communities to develop a stormwater program and obtain an NPDES permit for
stormwater discharges.
In North Carolina, the Department of Environment and Natural Resources (NCDENR), Division
of Water Quality (DWQ) administers the NPDES Stormwater program. The program requires
the Town of Morrisville to develop, implement, and enforce a stormwater program designed to
reduce the discharge of pollutants from the MS4 to the maximum extent practicable. The
program is implemented through an NPDES permit in phases over five years. Pursuant to the
permit the stormwater program included the best management practices (BMPs) for the
following six minimum measures:
1. Public education and outreach on stormwater impacts;
2. Public involvement/participation;
3. Illicit discharge detection and elimination;
4. Construction site stormwater runoff control (Erosion Control);
5. Post -construction stormwater management for new development and redevelopment;
6. Pollution prevention/good housekeeping for municipal operations.
The Town's Stormwater Program is administered by the Engineering Department. The
Stormwater Engineer position oversees the program. A copy of the organizational chart is
included in the appendix.
Page 13

Town of Morrisville
Comprehensive Stormwater Management Plan
Last Revised: July 1, 2013
1. Storm Sewer System Information
1.1 Population Served
1.2 Growth Rate
Estimated growth rate.........................................256.7 % from the 2000 Census (5,208)
1.3 Jurisdictional Area
Town of Morrisville Limits................................................................................8.4 sq. mi.
Totalincluding ETJ...........................................................................................9.8 sq. mi.
1.4 MS4 Conveyance System
Most stormwater runoff begins in any given sub -basin as sheet flow (creating a "non -
point source" for surface water pollution) and ultimately becomes concentrated flow at
the receiving stream. In the Town's urban areas, stormwater runoff often becomes
concentrated prior to the receiving stream as it enters roadside ditches or piped
conveyance systems. As development occurs in the Town of Morrisville, an increasing
portion of runoff will flow across man-made impervious surfaces, and become
concentrated along typical curb and gutter systems conveying it to constructed pipe
networks or ditches. Runoff flow discharges to various detention systems and other
structural Stormwater Best Management Practices (BMPs) within the Town of
Morrisville's jurisdiction prior to entering the receiving stream in many instances; the
majority of which are on private property.
As with most modern storm sewer systems, the Town's MS4 is not combined with any
portion of its sanitary sewer system or other discharges (unless by illicit connections).
Currently, the responsibility for the stormwater conveyances and infrastructure rests
solely with the owner, or entity, which possesses specific rights to the system. Private
drainage systems and drainage ditches are maintained solely by property owners or
other responsible parties (i.e. homeowner's associations). NCDOT streets, storm
drainage, and right-of-way that traverse throughout the Town's ETJ are maintained by
NCDOT. The Town assumes responsibility for the upkeep of storm drainage pipes and
roadside ditches that exist inside the Town -owned right-of-way or drainage easements,
and several Town -owned structural BMPs. The Town has incorporated post
construction stormwater management and illicit discharge connection policies through its
Stormwater Management Ordinance (Adopted February 28th 2012) and the Design and
Construction Ordinance specifying the details of how the Town will enforce and regulate
stormwater issues within its jurisdiction. A primary goal of the Town's stormwater
program is to assign responsibility to private owners and public agencies alike and hold
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
all parties, including itself, accountable for pollutants that enter the MS4 and for the
water quality of its receiving streams.
1.5 Estimated Land Use
The Following breakdown is based on GIS data using Wake County parcel data dated
2012.
Acreage %
Very Low Density Residential
369
6%
Low Density Residential
618
10%
Medium Density Residential
494
8%
High Density Residential
554
9%
Group Living Facility
7
< 1 %
Mixed Use
122
2%
Commercial - Lodging
60
1%
Commercial - Retail/Services
369
6%
Office
554
9%
Place of Worship/Cemetery/Civic Group
60
1 %
Public Facility/School/Institution
122
2%
Industrial - DistributionNVarehouse
618
10%
Industrial - Manufacturing
122
2%
Private Open Space/Recreation
431
7%
Public Park/Greenway/Open Space
246
4%
Utilities
20
< 1 %
Vacant
1_,419
23%
Sum:
6,185
100%
1.6 TMDL Identification
Section 303(d) of the Clean Water Act requires States to develop a list of waters not
meeting federal water quality standards and to correct the impaired waters by
developing a management strategy or a total maximum daily loading (TMDL). According
to North Carolina's 2012 Final 303(d) List, portions of Crabtree Creek [27-33-(1) & 27-
33-(3.5)aj and Brier Creek [27-33-4] are the only streams within the Town's jurisdiction
listed as impaired. Crabtree Creek from the source to backwaters of Crabtree Lake is
currently impaired due to a poor benthic community bioclassification. Crabtree Creek
from the backwaters of Crabtree Lake to Cary WWTP is currently impaired due to
turbidity and for fish consumption based on a DHHS advisory for polychlorinated
biphenyls (PCBs). Brier Creek from the source to Crabtree Lake are impaired for fish
consumption based on a DHHS advisory for polychlorinated biphenyls (PCBs). The
Basinwide Plan recommends that local initiatives are needed to improve water quality in
Crabtree Creek and DWQ encourages development of a land use plan and stormwater
program that protects the water quality in Crabtree Creek. The Town's NPDES Phase II
Stormwater Management Program is consistent with the recommendations in the
Page j 5

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised. July 1, 2013
Basinwide Plan and should help improve water quality in Crabtree Creek through
implementation of the Stormwater Management Ordinance, and Stream Buffer
Protection Ordinance. The Town is currently developing a plan as required by Section H
of the NPDES permit.
The State of North Carolina has also developed management strategies that set forth
specific target levels of nutrient loading for certain nutrient sensitive waters. The Clean
Water Responsibility Act of 1997-458 requires the development of concentration limits
for wastewater discharges and restoration goals for nutrient sensitive waters.
Additionally, the SL2005-190, adopted by the General Assembly in 2005 required the
development of nutrient strategies for drinking water supply reservoir watersheds. The
Neuse River Basin Management Strategies set forth various strategies (including
Riparian Buffer Rules) with the goal of reducing nitrogen to more acceptable levels.
Additionally, the Jordan Lake Water Supply Nutrient Strategy Rules were adopted by the
NC General Assembly in August 2009. A portion of Morrisville lies within the Upper New
Hope Arm of the Jordan Lake Watershed which was placed on the North Carolina's list
of impaired waters under Section 303(d) of the federal Clean Water Act for exceeding
the Chlorophyll A standard. The Jordan Lake Rules include target level nutrient
loadings and riparian buffer rule requirement that are applicable to the entire Cape Fear
River portion of the Town. The Stormwater Management Ordinance incorporates these
measures and applies them to the entire Town; including the Neuse River portion.
Page 16

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised. July 1, 2013
2. Receiving Streams
Approximately 20% of the land area of the Town lies within the Upper New Hope Arm of
the Jordan Lake Watershed, which is part of the Cape Fear River Basin, with the
remaining 80% draining to the Neuse River Basin via several tributaries: Specifically, the
Town drains to the receiving waters listed below.
Cape Fear River Basin
Receiving
Water
Stream
Stream
Quality
Use Support
Water Quality Issues
Name
Segment
Classificatio
Rating
n
Kit Creek
16-41-1317-2-
C; NSW
Not Rated
n/a
Kit Creek
16-4101717-2-
WS_IV; NSW
Not Rated
n/a
Notes:
1. Receiving streams determined using NCDWQ Integrated Report GIS layers.
2. Use Support Rating and Water Quality Parameter as given in Integrated Report.
Neuse River Basin
Receiving
Stream
Stream
Water Quality..
Use Support
Water Quality Issues
Name
Segment
Classification..
Rating
Standard Violation -
Brier Creek
27-33-4
C; NSW
Impaired
PCB
Coles
27-33-3
C; NSW
Not Rated
n/a
Branch
Poor Bioclassification -
Crabtree
27-33-(1)
C; NSW
Impaired
Ecological/biological
Creek
integrity Benthos
Standard Violation —
Crabtree
Creek
27-33-(3.5)a
B; NSW
Impaired
Turbidity & PCB
Stirrup Iron
27-33-4-2
C; NSW
Not Rated
n/a
Creek
Indian
n/a — from
Creek
source to
n/a
Not Rated
n/a
Crabtree Creek
Note:
1. Receiving streams (except Indian Creek) determined using NCDWQ Integrated Report
GIS layers. Indian Creek identification and naming based on local knowledge.
2. Use Support Rating and Water Quality Parameter as given in Integrated Report.
Page 1 7

Town of Morrisville
Comprehensive Stormweter Management Plan Last Revised: July 1, 20f3
3. Existing Water Quality Programs
3.1 Local Programs
The following programs and ordinances are being implemented within the Town's
jurisdiction.
To meet its regulatory requirements, the Town addresses most water quality issues
within the Engineering Department through enforcement of the Stormwater Management
Ordinance as part of the site plan and construction drawing review process. The
Engineering Department is also responsible for Stream Origin Determinations and
coordinates enforcement of the protected stream buffer ordinance with the Planning
Department. The only exception is the sediment and erosion control program which, for
development projects that disturb more than one acre of land, are referred to Wake
County for erosion control review, in accordance with the NC Sedimentation Pollution
Control Act of 1973. (Note: Wake County operates their program under delegated
authority from the NC Division of Land Resources).
The Planning Department is in the process of developing a Unified Development
Ordinance (UDO) which may include additional requirements that pertain to water quality
and/or include the Stormwater Ordinance,
The Town is also in the process of coordinating with DWQ to perform inspections of
Industrial NPDES stormwater permitted facilities, Construction General Permits
(NCG01), and the stormwater portion of 401 Certifications for facilities within the Town.
3.2 State Programs
The State of North Carolina developed its own water quality standards and
classifications program pursuant to G.S. 143-214.1 and 15A NCAC 02B .0100 and
.0200. The State's program began in the early 1950's and has been modified over time
to be consistent with the Federal Clean Water Act as well as its own basin -wide
approach to water quality.
One aspect of the state basin -wide studies, which applies directly to the Town's surface
waters, is the classification of certain waters as nutrient sensitive waters (NSW
supplemental classification). The Neuse River NSW Management Strategy became
effective in 1998 and established a goal to reduce the average annual nitrogen loading,
relative to background levels, by a minimum of 30% by 2004. This management
strategy imposed basin -wide buffer regulations and required larger and growing
municipalities to implement NSW stormwater programs to help meet the 30% nitrogen
reduction goal. The Town of Morrisville was not one of these mandated municipalities;
however the Town voluntarily adopted and applied the nutrient sensitive water policies
from the Neuse River Basin regulations within its Design and Construction Ordinance
(DCO) on November 26, 2007. Through the DCO the Town enforced the Neuse River
nutrient reduction limits and buffer regulations throughout its entire jurisdiction, including
the Cape Fear River Basin until the Stormwater Management Ordinance took effect on
Page18

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised. July 1, 2013
February 28, 2012, which imposed the stricter Jordan lake Nutrient Management
through the Town, which meets or exceeds the Neuse River strategy requirements.
Legislation adopted during the 2009 legislative session by the North Carolina General
Assembly regarding the Jordan Lake Water Supply Nutrient Strategy Rules has been
incorporated into the Town's Stormwater Program through the Stormwater Management
Ordinance. Per the adopted legislation, Town of Morrisville is mandated to meet the
specific nutrient loading and buffer requirements for the Jordan Lake watershed. The
Jordan Lake watershed encompasses the entire portion of the Town within the Cape
Fear watershed, which includes approximately 20% of Morrisville's land area. The
Jordan Lake Nutrient rules include target level Nitrogen and Phosphorus loading and
riparian buffer rule requirements that are applicable to the Cape Fear River portion of the
Town, and have been applied throughout the Town for added water quality benefit and
consistency of regulations throughout town.
The Town does rely on NCDOT to maintain stormwater facilities and programs within
their road rights -of -way.
Page 19

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
4. Permitting Information
The Town's Stormwater Program is administered by the Engineering Department. The
Stormwater Engineer position oversees the program. A copy of the organizational chart
is included in the appendix.
4.1 Responsible Party Contact List
Overall implementation and oversight of the Town's Stormwater Program is provided
through the Town's Engineering Department. The following table lists each separate
component program that will make up the Town's overall Stormwater Program as well as
the current individual and job title responsible for implementing it:
:Component Program
Responsible
Position'
Contact
Phone
Email
Overall Administration
Town
Manager
Tony Chiotakis (Interim)
[phone]
[e-mail]
Program Oversight
g 9
Town
Engineer
Richard D. Ca ppola Jr., P.E.
[phone]
RCappolaetownofmorrsville.aro
Public Education &
Outreach Program
Stormwater
Engineer
Robert D. Patterson, RE,
[phone]
r atterson townofmorrisville.or
Public Involvement &
Participation Program
Stormwater
Engineer
Robert D. Patterson, P.E.
[phone]
rpatterson (Dtownofmorrisville.oro
Illicit Discharge Detection &
Elimination Program
Stormwater
Engineer
Robert D. Patterson, P.E.
[phone]
[e-mail]
Construction Site
Runoff Program
Wake County
Betsy Pearce
Shawn Springer
[phone]
[phone]
Betsy_ Pea rce(a�wakegov.corn
Shawn. Springeroo�wakegov_,com
Post -Construction Stormwater
Management Program
Stormwater
Engineer
Robert D. Patterson, P.E.
[phone]
rpattersonCa�townofmorrisvilie.orp
Pollution Prevention/ Good
Housekeeping (Municipal O&M)
Program
Stormwater
Engineer
Robert D. Patterson, P.E.
[phone]
rpattersonetownofmorrisviIle. oro_
TMDL's
Stormwater
Engineer
Robert D. Patterson, P.E.
[phone]
rpattersonf&.townofmornsvilie.org
4.2 Organizational Chart
The Town's organization chart is included in the Appendix.
4.3 Signing Official
The Town operates under a council-manager form of government. The Town Manager is
responsible for management and oversight of the Town's daily operations. Contact
information is listed below:
Tony Chiotakis - Interim Town Manager
PO Box 166
Morrisville, NC 27560-0166
(Office) 919-463-6151
(Fax) 919-481-2907
TChiotakis TownofMorrisville.or
page 1 10

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
4.4 Duly Authorized Representative
Not applicable. The Town of Morrisville is not delegating permit application responsibility
to someone other than the signing official.
5. Co -Permit Status Information
The Town is not co -permitting with another entity.
6. Reliance on another Entity
The Town relies on Wake County to provide the Town with services to implement the
Town's Construction Site Runoff Controls program. The Town has adopted the Wake
County Sediment and Erosion Ordinance in Part C, Article II, Section 12 of its Zoning
Ordinance and established an agreement for Wake County to administer its sediment
and erosion control program. The Town of Morrisville currently relies on Wake County
Environmental Services to administer the sedimentation and erosion control program
within the Town's jurisdiction in accordance with the North Carolina Sedimentation
Pollution Control Act of 1973. The Town will continue this relationship as part of their
NPDES Phase II Program to meet the requirements of the Construction Site Stormwater
Runoff Control minimum measure.
6.1 Name of Entity
Wake County Department of Environmental Services - Erosion, Flood and Stormwater
Division
6.2 Elements Implemented
Oversight and implementation of the Town's NPDES Phase II stormwater program -
construction site stormwater runoff control.
6.3 Contact Information
Wake County Department of Environmental Services
P.O. Box 550
Raleigh, NC 27602
http:l/www.wakegov.com/water/stormwater/erosion/Pages/default.aspx
Betsy Pearce, CFM, CPSWQ
Cape Fear— Jordan Lake, Harris Lake, Neills Ck
(Office) 919-868-6414
Betsy. Pea rceawa k eg ov. co m
Shawn Springer
Neuse -- Crabtree Ck, Walnut Ck
(Office) 919-369-6135
shawn.springer[cD,wakegov.com
Page 111

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
6.4 Legal Agreement
Recognizing the need for assistance and the benefits of local agreements, the Town
entered into an inter -local agreement with Wake County effective October 23, 2006,
Under this agreement, the Wake County Department of Environmental Services -
Erosion, Flood and Stormwater Division provides the Town with services to implement
the Town's construction site stormwater runoff control program. A copy of the inter -local
agreement is included in the appendix.
7. Stormwater Management Program
The following sections describe the Town's stormwater management program and
measurable goals for each BMP. While the BMPs under each minimum measure are not
expected to change over the life of this stormwater management plan, measurable goals
may be modified, removed, or new goals added. Changes may be necessary to meet
changes in resources, or to be more effective in reducing impacts to the MS4.
Modifications to these goals will be documented within the required annual report.
7.1 Public Education and Outreach
1. Objectives for Public Education and Outreach:
Distribute educational materials to the community or conduct equivalent outreach
activities about the impacts of storm water discharges on water bodies and the steps the
public can take to reduce pollutants in storm water runoff.
The Town's stormwater public education and outreach program includes:
Distribution of educational materials at Town events and making them available at
several Town properties (Town Hall, Public Safety and Municipal Services (PSMS), etc.),
Inclusion of a Stormwater Matters article in the monthly Morrisville Connection
newsletter, Booth presence at Morrisville's Green Day annually, BMP educational
displays at Town owned BMPs, Stormwater "giveaways" (rain gauges, magnets, etc.),
Membership in the Clean Water Education Partnership to provide educational materials
and support to the public via radio and TV commercials, website, and handouts.
2. BMPs for Public Education and Outreach
a.) The goals and objectives of the Town are to inform and distribute educational
materials to the community and/or conduct equivalent outreach activities about the
impacts of pollutants in storm water discharges on water bodies and the steps that
the public can take to reduce pollutants in storm water runoff.
b.) The target pollutants and/or stressors of concern in the receiving waters of the Town
of Morrisville MS4 are:
• Sediment and other suspended solids
Page 1 12

Town of Morrisville
comprehensive Stormwater Management Plan Last Revised: July 1, 2013
a This is the number 1 pollutant in North Carolina, including Morrisville, due
to the highly erodible Triassic and Clay -based soils.
o Sediment can adversely impact waterways and aquatic environments.
Due to recent drought cycles, maintaining vegetative cover has been an
issue. For new construction, erosion control is necessary to keep
sediment on site.
o Likely Sources are non -stabilized lawns and steep slopes, newly graded
and denuded areas on construction sites, and mining and materials
distribution centers.
• Excess Nutrients such as Nitrogen and Phosphorus
o Town lies within the Neuse River Basin and Cape Fear River Basin
(Jordan Lake watershed), both of which have been classified Nutrient
Sensitive waters by NC DENR.
o These pollutants affect the ability of the receiving stream to support
biological communities by promoting high algal growth in downstream
waterbodies causing low oxygen levels.
o Likely sources include excess fertilizer from lawns, atmospheric
deposition on impervious areas, pet waste and organic matter, and
nutrients in eroded soils.
• Litter/Yard Waste
o Litter and yard waste can block stormwater conveyances, and as litter
and yard waste decompose they introduce chemicals and additional
nutrients into the storm system, eventually entering the surface water
body. Additionally, yard waste placed along embankments can limit
natural vegetation from establishing, making them unstable and allowing
erosion.
The target audiences include various groups within the MS4 area to include, but not
limited to:
Homeowners
o will be informed of the proper use and handling of yard wastes to protect
surface waters
o will be educated on proper fertilizer & herbicide application rates to
minimize nutrient loading in the receiving streams, as they are highly
likely to less experience performing these actions.
o will. also be informed of Town programs for recycling.
Landscaping companies will be informed of the proper use and handling of yard
wastes and fertilizer application rates to minimize nutrient loading in the receiving
streams, and commercial applicators will be required to complete the Jordan
Lake Fertilizer Training course
Programs will also be aimed at teaching school children in the town the
importance of water conservation and protection of our natural water systems
from litter and pollutants.
Page 1 13

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
Contractors and developers in the area will be targeted to educate on the effects
of increased sediment loads on the receiving streams.
Local restaurant and industrial groups will be targeted to inform them of the
impacts of grease and hazardous materials entering the storm drain system.
Special interests groups (Churches, Boy/Girl Scout Troops, etc.) will be given
educational presentations about the effects polluted stormwater on water bodies
as requested.
Residential and industrial/commercial issues include:
• Developments with high impervious surfaces
• Properties under construction with active land disturbance activities
• Existing properties with facilities in need of maintenance or repair
• Industrial NPDES facilities permitted by DWQ
The Town shall:
• Distribute educational materials to the community by making them available at
Town facilities frequented by residents
• Maintain the stormwater hotline: 919-463-SOAK (7025)
• Maintain the informational website:
http://ww_w.townofmorrisviIle.org/index.aspx?nid=114
• Conduct outreach activities (presentations, booth set-ups, etc.) addressing
impacts of storm water discharges on water bodies and the steps the public can
take to reduce pollutants in storm water runoff through educational programs,
local events (such as the annual Green Day, etc.)
• Place informational flyers at Town Hall, PSMS, etc.
• Provide articles to the local newsletter.
o Paper copies of the newsletter will be distributed at various events and
educational programs.
o Work with the Town's public information officer to post the newsletter on
the Town's website and send a notification when a new issue is available
to those subscribed to the Town's email notification list
• Partner with other local government departments conducting environmental
education to conduct school programs.
7.2 Public Involvement and Participation
The Town's stormwater public involvement and participation program includes
maintaining an informational website with contact information and participation in local
events and festivals such as Morrisville's Green Day, NC Big Sweep, partnering with
volunteer groups, as requested, for stream monitoring and cleanup, Town Council.and
Planning Board, rain barrel program, and the stormwater citizen advisory committee
(RAIN Committee).
The Town will conducts public meetings as needed to allow local citizens to review and
provide input on the stormwater management plan.
The Town shall provide stormwater content and information on the Town's website at:
http://www.townofmorrisville.org/index.aspx?nid=l 14
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
The Town shall provide promote and maintain a hotlinelhelpline at 919-463-SOAK
(7025).
The Town shall distribute handouts and information on rain barrels, yard waste,
fertilizer/pesticide/herbicide application, and other stormwater related issues to local
citizens through events, festivals, and information requests.
The Town shall conduct one (1) Stormwater Program workshop annually to inform the
residents of the various aspects of the program, answer questions, and distribute
additional literature.
7.3 Illicit Discharge Detection and Elimination
The objectives of the Town's Illicit Discharge Detection and Elimination Program are:
a. Implement and enforce a program to address the detection and elimination of
illicit discharges into the MS4.
b. Maintain a storm sewer system map, showing the location of all major outfalls
and the names and location of all waters of the state that receive discharges from
those outfalls;
c. Prohibit, through ordinance, or other regulatory mechanism, non -storm water
discharges except as allowed in this permit and implement appropriate
enforcement procedures and actions;
d. Implement a plan to detect and address non -storm water discharges, including
illegal dumping, to the MS4;
e. Inform public employees, businesses, and the general public of hazards
associated with illegal discharges and improper disposal of waste; and
f. Address non -storm water discharges or flows (i.e., illicit discharges) if identified
as significant contributors of pollutants to the MS4.
The Town has an Illicit Discharge Detection and Elimination Ordinance included in the
Stormwater Ordinance. The Town shall annually review the IDDE ordinance or other
regulatory mechanisms, or adopt any new ordinances or other regulatory mechanisms
that provide the permittee with adequate legal authority to prohibit illicit connections and
discharges and enforce the approved IDDE Program.
The Town shall develop and maintain a current map showing major outfalls and
receiving streams. The Town maintains a Geographic Information System (GIS)
database that includes drainage areas, receiving streams, land use information, zoning,
soils, floodplain data, water quality designations, impervious cover and other pertinent
data. This information is updated periodically often based on actual site reconnaissance,
such as on site surface water identifications. A field survey of all Town maintained
stormwater infrastructure is currently being finalized. This will be updated to include
private drainage systems in the next fiscal year.
The Town shall develop and maintain a program for conducting dry weather flow field
observations in accordance with a written procedure for detecting and removing the
sources of illicit discharges.
The Town shall develop and maintain written procedures for conducting investigations of
identified illicit discharges.
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July f, 2013
The Town tracks all investigations and documents the date(s) the illicit discharge was
observed; the results of the investigation; any follow-up of the investigation; and the date
the investigation was closed.
The Town trains appropriate municipal staff who as part of their normal job
responsibilities, may come into contact with or otherwise observe an illicit discharge or
illicit connection to the storm sewer system.
The Town informs public employees, businesses, and the general public of hazards
associated with illegal discharges and improper disposal of waste. The Town conducts
one (1) training session for Town employees in positions frequently exposed to potential
1DDE events and provides information regarding appropriate training sessions provided
by other entities. In addition, the Town is exploring the possibility of providing training to
all newly hired employees through the Town's LAUNCH training program.
The Town shall promote, publicize, and facilitate a reporting mechanism for the public
and staff to report illicit discharges and establish and implement citizen request response
procedures.
The Town tracks the issuance of notices of violation and enforcement actions as
administered by the permittee.
7.4 Construction -Site Stormwater Runoff Control
Pursuant to 40 CFR 122.35(b), the Town relies on the Wake County Sediment and
Erosion Control Program to comply with this minimum measure. The Wake County
Sediment and Erosion Control Program effectively meets the maximum extent
practicable (MEP) standard for Construction Site Runoff Controls by permitting and
controlling development activities disturbing one or more acres of land surface and those
activities less than one acre that are part of a larger common plan of development as
authorized under the Sediment Pollution Control Act of 1973 and Chapter 4 of Title 15A
of the North Carolina Administrative Code. The Wake County Sediment and Erosion
Control Program continues to be monitored by the State to ensure the County effectively
meets the MEP standard established by the Sediment Pollution Control Act of 1973 and
Chapter 4 of Title 15A of the North Carolina Administrative Code.
The NCG010000 permit establishes requirements for construction site operators to
control waste such as discarded building materials, concrete truck washout, chemicals,
litter, and sanitary waste at the construction site that may cause adverse impacts to
water quality. This NPDES General Permit is issued by Wake County along with the
sediment and erosion control approval. Inspection and enforcement is handled by
DWQ. The Town is currently in the process of developing a MCA with DWQ so that the
Town can assist with inspections for this general permit for projects within the Town.
The Town provides and promotes a means for the public to notify the appropriate
authorities of observed erosion and sedimentation problems by promoting the existence
of the NCDENR, Division of Land Resources "Stop Mud" hotline, and providing a "Report
a Concern" link on the Town's website at:
http:Ilwww.townofmorrisville.org/RequestTracker.aspx .
Page 1 16

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
7.5 Post -Construction Stormwater Management
The objectives of the Town's Post -Construction Stormwater Management Program is to:
a. Implement and enforce a program to address stormwater runoff from new
development and redevelopment projects that disturb greater than or equal to
one acre residential or one-half acre non-residential, including projects less than
the disturbance threshold that are part of a larger common plan of development
or sale. The program shall ensure that controls are in place that would prevent or
minimize water quality impacts.
b. Implement strategies which include a combination of structural and/or non-
structural best management practices (BMPs) appropriate for the community;
C. Use the Stormwater Management Ordinance and other regulatory mechanisms
(DCO, Design Manual, etc.) to address post -construction runoff from new
development and redevelopment projects; and
d. Provide adequate long-term operation and maintenance of BMPs.
The Town maintains through an ordinance, or other regulatory mechanism, adequate
legal authorities to meet the objectives of the Post -Construction Site Runoff Controls
program. In February 2012 (revised July 2012), the Town formed the Stormwater
Management Ordinance (SMO), an independent regulatory mechanism based on the
Jordan Lake program model ordinance requiring additional post -construction stormwater
controls. It should be noted that the Town is currently developing a UDO and will be
incorporating the SMO and integrating the post -construction stormwater requirements. In
addition to the specific post -construction stormwater requirements listed above, the
Town employs other policies, practices and regulations that help protect water quality of
its receiving waters. Measures currently in place help to protect natural resources,
protect open space, preserve trees, and regulate redevelopment and street design.
Through future policies the Town plans to address green infrastructure elements and
practices and incorporate a detailed list and description of those measures into a "design
manual". In addition, the Town will likely implement guidance currently being developed
by the DWQ LID STRT. During its UDO process, the Town is evaluating additional
measures, especially aspects of low impact development and improved site design to
minimize water quality impacts even further. Stormwater staff is working with the Town's
planning staff during the pre -development phase of projects to help guide site design
that minimizes water quality impacts
The Town has the authority to review designs and proposals for new development and
redevelopment to determine whether adequate stormwater control measures will be
installed, implemented, and maintained.
The Town has the authority to request information such as stormwater plans, inspection
reports, monitoring results, and other information deemed necessary to evaluate
compliance with the Post -Construction Stormwater Management Program.
The Town has the authority to enter private property for the purpose of inspecting at
reasonable times any facilities, equipment, practices, or operations related to stormwater
discharges to determine whether there is compliance the Post -Construction Stormwater
Management Program.
Page 117

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
The Town has adopted the NCDENR DWQ Stormwater BMP Manual, and is in the
process of creating a Design Manual that will incorporate Town preferred methods that
meets or exceeds the requirements in the DWQ BMP Manual. The Town utilizes both
structural and non-structural BMPs to treat and control post -construction stormwater.
Non-structural BMPs include stream buffers, flood hazard zone protection, landscape
requirements, and educational materials. Structural stormwater BMPs include those
listed in the DWQ Stormwater BMP Manual. The Town will consider non-standard
practices that may not be covered in the current DWQ BMP Manual on a case by case
basis if the applicant can provide evidence that they meet or exceed the intent of the
ordinance. The Town may in the future establish a program similar to DWQ's PEP
program for evaluating proprietary devices.
The Town conducts site plan reviews of all new development and redeveloped sites that
disturb greater than or equal to one acre for residential, and one-half acre for non-
residential, including sites that disturb less than the above thresholds that are part of a
larger common plan of development or sale. The site plan review addresses how the
project applicant meets the performance standards and how the project provides for
long-term maintenance.
The Town maintains an inventory of projects with post -construction structural stormwater
control measures installed and implemented at new development and redeveloped sites,
including both public and private sector sites located within the Town's jurisdictional area
that are covered by its post -construction ordinance requirements. The Town is currently
in the process of developing a MOA with DWQ to facilitate inspecting stormwater BMPs
within the Town's jurisdictional area that were installed under a 401 Certification from
DWQ.
The Town provides mechanisms so that development activities maintain the project
consistent with approved plans.
The Town requires an operation and maintenance plan for the long-term operation of
the structural BMPs required by the program, as well as a monetary maintenance
security.
To ensure that all stormwater control measures meet the Town's performance
standards and are being maintained pursuant to the maintenance agreement, the
permittee has a written inspection program for structural stormwater controls installed
pursuant to the Town's�post-construction program. The Town inspects new structural
stormwater BMPs at the time the project is complete to ensure compliance with
approved plans. New BMPs are tracked using GPSIGIS technology. Annual inspection
reports are submitted by the owner and certified by an approved professional. Follow-up
inspections are conducted by the Town as warranted and inspection reports are
provided to owner outlining follow up actions.
The Town maintains records of inspections, findings and enforcement actions.
The Town makes available through paper or electronic means, ordinances, post -
construction requirements, design standards checklist, and other materials appropriate
for developers.
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Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 1, 2013
The Town tracks the issuance of notices of violation and enforcement actions as
administered by the permittee.
7.6 Pollution Prevention/Good Housekeeping for Municipal Operations
The Town is in the process of developing a pollution prevention/good housekeeping
program that includes three primary components:
1. Operation and Maintenance (O&M) of facilities and operations owned and
operated by the Town with the potential for generating polluted stormwater
runoff,
2. O&M of municipally -owned streets, roads, and public parking lots within the
jurisdictional area, and
3. O&M of municipally -owned or operated structural stormwater controls and
drainage systems.
The Town maintains an inventory of facilities and operations owned and operated by the
Town with the potential for generating polluted stormwater runoff. The following facilities
are owned by the Town and included in the Good Housekeeping plan:
1. Parks and Recreation Areas
2. Emergency Services (Emergency Response, Police and Fire Departments)
3. Vacant Properties
4. Permittee Buildings
5. Public Owned Open Spaces
6. Salt/Sand Storage Areas
7. Fleet Maintenance
8. Vehicle Washing Facilities
9. Material Storage Facilities
10. Streets & Parking Lots
The Town also maintains public road rights -of -way (ROW) in portions of their jurisdiction
that are not owned by NCDOT, including catch basins and conveyance systems.
The Town maintains and implements an O&M program for municipal owned and
operated facilities with the potential for generating polluted stormwater runoff,
municipally -owned streets, roads, and public parking lots and Municipally -owned or
operated structural stormwater controls. The O&M program specifies the frequency of
inspections and routine maintenance requirements. Within non-NCDOT road ROW, the
Town maintains and implements an O&M program for municipally -owned streets, roads,
and public parking lots within the jurisdictional area. The Town maintains and
implements an O&M program for municipally -owned or operated structural stormwater
controls.
The Town conducts appropriate Good Housekeeping training for new employees and
provides "refresher" training to employees as warranted. As staff time and resources
allow, the Town intends to expand Good Housekeeping training to all Town employees,
even those not directly involved with Good Housekeeping requirements.
Page 1 19

Town of Morrisville
Comprehensive Stormwater Management Plan Last Revised: July 9, 2013
APPENDICES
Organization Chart
Stormwater Ordinance
Inter -local Agreements
Illicit Discharge Detection and Elimination SOP
Pollution Prevention & Good Housekeeping SOPs
Stormwater/Water Quality Related Polices, Practices and Regulations
Page 120

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ARTICLE 7: STORMWATER MANAGEMENT................................................................................7-1
Section7.1. General Provisions.............................................................................................................7-1
7.1.1. Findings..............................................................................................................................................................................7-1
7.1.2. Purpose..............................................................................................................................................................................7-1
7.1.3. Authority.................................................................................................................................... .......7-2
.................................
7.1.4. Applicability and Jurisdiction........................................................................................................................................7-2
A. General ............. ................................................................................................................................................................ 7-2
B. Exemptions........................................................................................................................................................................7-2
C. No Development or Redevelopment until Compliance and Permit......................................................................7-3
7.1.5.
Map...................................................................................................................................................................................7-3
7.1.6.
Design Manual..................................................................................................................................................................7-3
A.
Reference to Design Manual........................................................................................................................................7-3
B.
Relationship of Design Manual to Other Laws and Regulations...........................................................................7-3
C.
Changes to Standards and Specifications ....... ........... ..................... .............................................
............................. 7-3
D.
Amendments to Design Manual....................................................................................................................................7-4
Section 7.2.
Administration and Procedures..........................................................................................7-4
7.2.1.
Stormwater Administrator..............................................................................................................................................7-4
A.
Designation.......................................................................................................................................................................7-4
B.
Powers and Duties...........................................................................................................................................................7-4
7.2.2.
Review Procedures..........................................................................................................................................................7-4
A.
Stormwater Management Permit Required; Must Apply for Permit....................................................................7-4
B.
Effect of Permit................................................................................................................................................................7-4
C.
Authority to file Applications............................................................. ...........................................................................
7-5
D.
Establishment of Application Requirements, Schedule, and Fees..........................................................................7-5
E.
Submittal of Complete Application............................................................. ................................................................
7-5
F.
Review ............................................................ ...................................................................................................................7-6
7.2.3.
Applications for Approval.............................................................................................................................................7-6
A.
Concept Plan and Consultation Meeting....................................................................................................................7-6
B.
Stormwater Management Permit Application...........................................................................................................7-7
C.
As -Built Plans and Final Approval...............................................................................................................................7-7
D.
Other Permits...................................................................................................................................................................7-8
7.2.4.
Approvals ............................ ..............................................................................................................................................
7-8
A.
Effect of Approval ..................................... ....................................................................................................................
7-8
B.
Time Limit/Expiration......................................................................................................................................................7-8
7.2.5.
Stormwater Variances....................................................................................................................................................7-8
7.2.6.
Appeals.............................................................................................................................................................................7-9
Section7.3.
Standards ......................... ................................................................................................... 7-9
7.3.1.
General Standards.........................................................................................................................................................7-9
7.3.2.
Nitrogen and Phosphorus Loading...............................................................................................................................7.9
7.3.3.
Nitrogen and Phosphorus Standard Is Supplemental; TSS Removal....................................................................7-9
I

7.3.4. Control and Treatment of Runoff Volume ........................................... ..................................... :........................... -.7-10
7.3.5. Partial Offset of Nutrient Control Requirements...................................................................................................7-10
7.3.6. Evaluation of Standards for Stormwater Control Measures...............................................................................7-10
A. Evaluation According to Contents of Design Manual............................................................................................7-10
B. Determination of Adequacy; Presumptions and Alternatives.............................................................................7-1 1
7.3.7. Dedication of BMPs, Facilities, and Improvements .............................. ................................................................. .7-1 1
Section7.4. Maintenance....................................................................................................................7-1 1
7.4.1. General Standards for Maintenance.......................................................................................................................7-1 1
A. Function of BMPs as Intended....................................................................................................................................7-1 1
B. Annual Maintenance Inspection and Report...........................................................................................................7-1 1
7.4.2. Operation and Maintenance Agreement................................................................................................................7-12
A. In General......................................................................................................................................................................7-1 2
B. Special Requirement for Homeowners' and Other Associations........................................................................7-1 2
7.4.3. Inspection Program.......................................................................................................................................................7-13
7.4.4. Performance Security for Installation and Performance......................................................................................7-13
A. Performance Security..................................................................................................................................................7-1 3
B. Amount................................................................................................................................ ........ 7-1 3
......... ...........................
C. Uses of Performance Security....................................................................................................................................7-14
7.4.5. Notice to Owners..........................................................................................................................................................7-14
A. Deed Recordation and Indications on Plat.............................................................................................................7-14
B. Signage..........................................................................................................................................................................7-14
7.4.6. Records of Installation and Maintenance Activities...............................................................................................7-1 5
7.4.7. Nuisance............................................................................................................................ 7-15
.............................................
7.4.8. Maintenance Easement................................................................................................................................................7-15
Section7.5. Enforcement and Violations.............................................................................................7-15
7.5.1. General................................................................................................................................ 7-15
..........................................
A. Authority to Enforce ............. ........................................................................................................................................ 7-15
B. Violation Unlawful........................................................................................................................................................7-15
C. Each Day a Separate Offense.................................................................................................................................7-15
D. Responsible Persons/Entities......................................................................................................................................7-15
7.5.2. Remedies and Penalties...............................................................................................................................................7-16
A. Remedies.............................................................................................................................................................. .7-16
B. Civil Penalties................................................................................................................................................................7-16
C. Criminal Penalties.........................................................................................................................................................7-16
7.5.3. Procedures......................................................................................................................................................................7-17
A. Initiation/Complaint.....................................................................................................................................................7-17
B. Inspection........................................................................................................................................................................ 7-17
C. Notice of Violation and Order to Correct ............... ............................. .................................................................. 7-17
D. Extension of Time..........................................................................................................................................................7-17
E. Enforcement after Time to Correct...........................................................................................................................7-17

F. Emergency Enforcement..............................................................................................................................................7-17
Section 7.6. Illicit Discharges and Connections...................................................................................7-18
7.6.1. Illicit Discharges.............................................................................................................................................................7-18
7.6.2. Illicit Connections...........................................................................................................................................................7-18
7.6.3. Spills ........ ........................................................................................................................................................................ 7-19
7.6.4. Nuisance.........................................................................................................................................................................7-19

SECTION 7.1. GENERAL PROVISIONS s
7.1.1. Findings
A. It is hereby determined that:
1. Development and redevelopment alter the hydrologic response of local watersheds and increases
stormwater runoff rates and volumes, flooding, soil erosion, stream channel erosion, nonpoint and
point source pollution, and sediment transport and deposition, as well as reducing groundwater
recharge;
2. These changes in stormwater runoff contribute to increased quantities of water -borne pollutants
and alterations in hydrology that are harmful to public health and safety as well as to the natural
environment; and
3. These effects can be managed and minimized by applying proper design and well -planned
controls to manage stormwater runoff from development and redevelopment sites.
B. It is further determined that the Federal Water Pollution Control Act of 1972 ("Clean Water Act") and
federal Phase II Stormwater Rules promulgated under it, as well as rules of the North Carolina
Environmental Management Commission promulgated in response to federal Phase II requirements,
compel certain urbanized areas, including this jurisdiction, to adopt minimum stormwater controls such
as those included in this Ordinance.
C. Additionally, the North Carolina Environmental Management Commission has identified B. Everett
Jordan reservoir, a water supply reservoir, as nutrient sensitive waters; has identified all or a portion
of the reservoir as impaired waters under the federal Clean Water Act due to exceedances of the
chlorophyll a standard; and has promulgated rules that have been amended and affirmed by the
North Carolina General Assembly (the "Jordan Rules") to reduce the average annual loads of nitrogen
and phosphorus delivered to Jordan Reservoir from all point and nonpoint sources of these nutrients
located within its watershed, including stormwater from new development in this jurisdiction;
D. Therefore, the Morrisville Town Council establishes this set of water quality and quantity regulations to
meet the requirements of state and federal law regarding control of stormwater runoff and discharge
for development and redevelopment.
7.1.2. Purpose
A. The purpose of this article is to protect, maintain and enhance the public health, safety, environment,
and general welfare by establishing minimum requirements and procedures to control the adverse
effects of: increased post -development stormwater runoff, nitrogen; phosphorus, and total suspended
solids in stormwater runoff; nonpoint and point source pollution associated with new development and
redevelopment; and illicit discharges into municipal stormwater systems. It has been determined that
proper management of construction -related and post -development stormwater runoff will: minimize
damage to public and private property and infrastructure; safeguard the public health, safety, and
general welfare; and protect water and aquatic resources.
B. This article seeks to meet its general purpose through the following specific objectives and means:
1. Establishing decision -making processes for development and redevelopment that protects the
integrity of watersheds and preserves the health of water resources;
2. Requiring that new development and redevelopment maintain the pre -development hydrologic
response in their post -development state for the applicable design storm to reduce flooding,
streambank erosion, nonpoint and point source pollution, and increases in stream temperature,
and to maintain the integrity of stream channels and aquatic habitats;
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Article 7: 6B5tormwater Management
Section 7.1. 61 BGeneral Provisions
7.1 '.3. 327BAuthoriry
3. Establishing minimum post -development stormwater management standards and design criteria
for the regulation and control of stormwater runoff quantity and quality;
4. Establishing design and review criteria for the construction, function, and use of structural
stormwater best management practices (BMPs) that may be used to meet the minimum post -
development stormwater management standards;
5. Encouraging the use of better management and site design practices, such as the use of
vegetated conveyances for stormwater and the preservation of greenspace, riparian buffers,
and other conservation areas to the maximum extent practicable;
6. Establishing provisions for the long-term responsibility for and maintenance of structural and
nonstructural stormwater BMPs to ensure that they continue to function as designed, are
maintained appropriately, and pose no threat to public safety;
7. Establishing administrative procedures for the submission, review, approval and disapproval of
stormwater management plans, for the inspection of approved projects, and to assure
appropriate long-term maintenance.
8. Controlling illicit discharges into the municipal separate stormwater system.
7.1.3. Authority
The Morrisville Town Council is authorized to adopt this article pursuant to North Carolina law, including
but not limited to Article 14, Section 5 of the Constitution of North Carolina; North Carolina General
Statutes Chapter 143-214.7 and rules promulgated by the Environmental Management Commission
thereunder. Chapter 143-215.6A; Session Laws 2009-216, 2009-484; Chapter 153A-454; Chapter
160A, §§ 174, 185, 459.
7.1.4. Applicability and Jurisdiction
A. General
Beginning with and subsequent to its effective date, this article shall be applicable to all development and
redevelopment —including, but not limited to, applications for Site Plan Approval, Subdivision Approval,
Construction Plan Approval, and grading approval --unless exempt pursuant to this article.
B. Exemptions
1. Single-family detached, duplex, and manufactured home dwellings and recreational
development and redevelopment that cumulatively disturbs less than one acre and are not part
of a larger common plan of development or sale are exempt from the provisions of this article.
2. Commercial, industrial, institutional, single-family attached and multifamily residential, or local
government development and redevelopment that cumulatively disturbs less than one-half acre
and are not part of a larger common plan of development or sale are exempt from the
provisions of this article.
3. Development and redevelopment that disturbs less than the above thresholds are not exempt if
such activities are part of a larger common plan of development or sale and the larger common
plan exceeds the relevant threshold, even though multiple, separate, or distinct activities take
place at different times on different schedules.
4. Development or redevelopment that is exempt from permit requirements of Section 404 of the
federal Clean Water Act as specified in 40 CFR 232 (primarily, ongoing farming and forestry
activities) is exempt from the.provisions of this article.
5. Per the requirements of 15A NCAC 02B .0265 and the Town's Phase II Permit NCS000465, new
development undertaken by a local government solely as a public road project shall be deemed
compliant with the purposes of this article if it meets the riparian buffer protection requirements
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Article 7: bBStormwater Management
Section 7.1. 51 BGeneral Provisions
7.1.5. 329BMap
of Article h: Riparian Buffers. For these public road projects, the following shall be done to the
maximum extent practicable (MEP):
a. Minimize BUA;
b. Divert runoff away from surface waters; and
c. Implement BMPs.
C. No Development or Redevelopment until Compliance and Permit
No development or redevelopment shall occur except in compliance with the provisions of this article or
unless exempted. No development or redevelopment for which a permit is required pursuant to this
article shall occur except in compliance with the provisions, conditions, and limitations of the permit.
7.1.5. Map
A. The provisions of this article shall apply within the areas designated on the map titled "Stormwater
Map of Morrisville, North Carolina" ("the Stormwater Map"), which is adopted simultaneously herewith.
The Stormwater Map and all explanatory matter contained thereon accompanies and is hereby made
a part of this Ordinance.
B. The Stormwater Map shall be kept on file by the Stormwater Administrator and shall be dated to take
into account changes in the land area covered by this Ordinance and the geographic location of all
engineered Stormwater controls permitted under this article. In the event of a dispute, the applicability
of this article to a particular area of land or BMP shall be determined by reference to the North
Carolina Statutes, the North Carolina Administrative Code, and local zoning and jurisdictional
boundary ordinances.
7.1.6. Design Manual
A. Reference to Design Manual
1. The Stormwater Administrator shall use the policy, criteria, and information, including technical
specifications and standards, in the Design Manual as the basis for decisions about stormwater
permits and about the design, implementation, and performance of engineered Stormwater
controls and other practices for compliance with this article.
2. The Design Manual includes a list of acceptable stormwoter treatment practices, including specific
design criteria for each stormwater practice. Stormwater treatment practices that are designed,
constructed, and maintained in accordance with these design and sizing criteria will be presumed
to meet the minimum water quality performance standards of the Jordan Rules, Phase II and other
applicable stormwater laws.
B. Relationship of Design Manual to Other Laws and Regulations
If the specifications or guidelines of the Design Manual are more restrictive or apply a higher standard
than other laws or regulations, that fact shall not prevent application of the specifications or guidelines
in the Design Manual.
C. Changes to Standards and Specifications
If the standards, specifications, guidelines, policies, criteria, or other information in the Design Manual
are amended subsequent to the submittal of an application for approval pursuant to this article, but
prior to approval, the new information shall control and shall be utilized in reviewing the application
and in implementing this article with regard to the application.
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Article 7: 6BStormwater Management
Section 7.2. 62BAdministration and Procedures
7.2.1. 331 BStormwater Administrator
D. Amendments to Design Manual
1. The Design Manual may be updated and expanded from time to time, based on advancements in
technology and engineering, improved knowledge of local conditions, or local. monitoring or
maintenance experience.
2. Prior to amending or updating —the Design Manual, proposed changes shall be generally
publicized and made available for review, and an opportunity for comment by interested
persons shall be provided.
>SECTION.7.2 TADMINISTRATION AND PROCEDURES _
7.2.1. Stormwater Administrator
A. Designation
A Stormwater Administrator shall be designated by the Morrisville Town Engineer to administer and
enforce this article.
B. Powers and Duties
In addition to the powers and duties that may be conferred by other provisions of this Ordinance and
other laws, the Stormwater Administrator shall have the following powers and duties under this article:
1. To review and approve, approve with conditions, or disapprove applications for approval of
plans pursuant to this article.
2. To make determinations and render interpretations of this article. Any person may request an
interpretation by submitting a written request to the Stormwater Administrator, who shall respond
in writing within 30 days. The Stormwater Administrator shall keep on file a record of all written
interpretations of this article.
I To establish application requirements and schedules for submittal and review of applications and
appeals, to review and make recommendations to other Town staff and Town boards on
applications for development or redevelopment approvals.
4. To enforce the provisions of this article in accordance with its enforcement provisions.
5. To maintain records, maps, forms, and other official materials as relate to the adoption,
amendment, enforcement, and administration of this article.
6. To provide expertise and technical assistance to the Town, on request.
7. To designate appropriate other person(s) who shall carry out the powers and duties of the
Stormwater Administrator.
8. To take any other action necessary to administer the provisions of this article.
7.2.2. Review Procedures
A. Stormwater Management Permit Required; Must Apply for Permit
A Stormwater Management Permit is required for all development and redevelopment unless exempt
pursuant to this article. A Stormwater Management Permit may only be issued subsequent to a
property submitted and reviewed permit application, pursuant to this section.
B. Effect of Permit
1. A Stormwater Management Permit shall govern the design, installation, and construction of
Stormwater management and control practices on the site, including engineered stormwater
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Article 7. 6BStormwater Management
Section 7.2.62BAdministration and Procedures
7.2.2. 332BReview Procedures
controls and elements of site design for stormwater management other than engineered
stormwater controls.
2. The Stormwater Management Permit is intended to provide a mechanism for the review,
approval, and inspection of the approach to be used for the management and control of
stormwater for the development or redevelopment site consistent with the requirements of this
article, whether the approach consists of engineered stormwater controls or other techniques such
as low -impact or low -density design. The permit does not continue in existence indefinitely after
the completion of the project; rather, compliance after project construction is assured by the
maintenance provisions of this article.
C. Authority to File Applications
All Stormwater Management Permit applications required pursuant to this article shall be submitted to
the Stormwater Administrator by the landowner or the land owner's duly authorized agent.
D. Establishment of Application Requirements, Schedule, and Fees
1. Application Contents and Form
The Stormwater Administrator shall establish requirements for the content and form of all
Stormwater Management Permit applications and shall amend and update those requirements
from time to time. At a minimum, the Stormwater Management Permit application shall describe in
detail how post -development stormwater runoff will be controlled and managed, the design of
all stormwater facilities and practices, and how the proposed project will meet the requirements
of this article.
Submission Schedule
The Stormwater Administrator shall establish a submission schedule for Stormwater Management
Permit applications. The schedule shall establish deadlines by which complete applications must
be submitted for the purpose of ensuring that there is adequate time to review applications, and
that the various stages in the review process are accommodated.
3. Permit Review Fees
The Town Council shall establish Stormwater Management Permit review fees as well as policies
regarding refund of any fees upon withdrawal of an application, and may amend and update
the fees and policies from time to time.
4. Administrative Manual
For Stormwater Management Permit applications required under this Code, the Stormwater
Administrator shall compile the application requirements, submission schedule, fee schedule, a
copy of this article, and information on how and where to obtain the Design Manual in an
Administrative Manual, which shall be made available to the public.
E. Submittal of Complete Application
1. Stormwater Management Permit applications shall be submitted to the Stormwater Administrator
pursuant to the application submittal schedule, and in the form established by the Stormwater
Administrator, along with the appropriate fee established pursuant to this section.
2. A Stormwater Management Permit application shall be considered as timely submitted only when
it contains all elements of a complete application pursuant to this article, along with the
appropriate fee. If the Stormwater Administrator finds that an application is incomplete, the
applicant shall be notified of the deficient elements and shall be provided with an opportunity to
submit a complete application. however, the submittal of an incomplete application shall not
suffice to meet a deadline contained in the submission schedule established above.
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Article 7: 6BStormwater Management
Section 7.2.62BAdministration and Procedures
7.2.3. Applications for Approval
F. Review
Within the timeframe specified in the submission schedule after a complete Stormwater Management
Permit application is submitted, the Stormwater Administrator shall review the application and
determine whether the application complies with the standards of this article.
1. Approval
If the Stormwater Administrator finds that the Stormwater Management Permit application
complies with the standards of this article and this Ordinance, the Stormwater Administrator shall
approve the application. The Stormwater Administrator may impose conditions of approval as
needed to ensure compliance with this article. The conditions shall be included as part of the
approval.
2. Fails to Comply
If the Stormwater Administrator finds that the Stormwater Management Permit application fails to
comply with the standards of this article, the Stormwater Administrator shall notify the applicant
and shall indicate how the application fails to comply. The applicant shall have an opportunity to
submit a revised application.
3. Revision and Subsequent Review
A complete revised Stormwater Management Permit application shall be reviewed by the
Stormwater Administrator within the timeframe specified in the submission schedule after its
resubmittal and shall be approved, approved with conditions or disapproved.
b. If a revised Stormwater Management Permit application is not re -submitted within six months
from the date the applicant was notified, the application shall be considered withdrawn, and
a new submittal for the some or substantially the same project shall be required along with
the appropriate fee for a new submittal.
c. Two resubmittals of a revised Stormwater Management Permit application may be submitted
without payment of an additional permit review fee. Any resubmittal after the second
resubmittal shall be accompanied by an additional permit review fee, as established
pursuant to this Ordinance.
7.2.3. Applications for Approval
A. Concept Plan and Consultation Meeting
Consultation Meeting
Before a Stormwater Management Permit application is deemed complete, the Stormwater
Administrator or developer may request a consultation on a concept plan for the post -construction
stormwater management system to be utilized in the proposed development project. This
consultation meeting should take place at the time of the preliminary plan of subdivision or other
early step in the development process. The purpose of this meeting is to discuss the stormwater
management measures necessary for the proposed project, as well as to discuss and assess
constraints, opportunities, and potential approaches to stormwater management designs before
formal site design engineering is commenced. Local watershed plans, the Comprehensive Plan,
and other relevant resource protection plans should be consulted in the discussion of the concept
plan.
2. Concept Plan Contents
To accomplish this goal, the following information should be included in the concept plan, which
should be submitted in advance of the meeting:
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Article 7: 6BStormwater Management
Section 7.2. 62BAdministration and Procedures
7.2.3. Applications for Approval
a. Existing Conditions/Proposed Site Plans
Existing conditions and proposed site layout sketch plans, which illustrate at a n1inimum:
existing and proposed topography; perennial and intermittent streams; mapping of
predominant soils from soil surveys (if available); stream and other buffers and features used
in designing buffers and meeting any applicable buffer requirements; boundaries of existing
predominant vegetation; proposed limits of clearing and grading; and location of existing
and proposed roads, buildings, parking areas, and other impervious surfaces.
b. Natural Resources Inventory
A written or graphic inventory of natural resources at the site and surrounding area as it
exists prior to the commencement of the project. This description should include a discussion of
soil conditions, forest cover, geologic features, topography, wetlands, and native vegetative
areas on the site, as well as the location and boundaries of other natural feature protection
and conservation areas such as lakes, ponds, floodplains, stream buffers, and other setbacks
(e.g., drinking water well setbacks, septic setbacks, etc.). Particular attention should be paid
to environmentally sensitive features that provide particular opportunities or constraints for
development and stormwater management.
c. Stormwater Management System Concept Plan
A written or graphic concept plan of the proposed post -development stormwater
management system including: preliminary selection and location of proposed engineered
stormwater controls; low -impact design elements; location of existing and proposed
conveyance systems such as grass channels, swoles, and storm drains; flow paths; location of
floodplcin/floodway limits; relationship of site to upstream and downstream properties and
drainages; and preliminary location of any proposed stream channel modifications, such as
bridge or culvert crossings.
B. Stormwater Management Permit Application
1. The Stormwater Management Permit application shall detail how post -development stormwater
runoff will be controlled and managed and how the proposed project will meet the requirements
of this article, including Section 7.3, Standards. All such plans shall be prepared by a qualified
licensed North Carolina Professional Engineer or registered surveyor, soil scientist, or landscape
architect. The engineer, surveyor, soil scientist, or landscape architect shall perform services only
in their area of competence, and shall verify that the design of all stormwater management
facilities and practices meets the submittal requirements for complete applications, that the
designs and plans are sufficient to comply with applicable standards and policies found in the
Design Manual, and that the designs and plans ensure compliance with this article.
2. The submittal shall include all of the information required in the submittal checklist established by
the Stormwater Administrator. Incomplete submittals shall be treated pursuant to Section 7.2.2.E,
Submittal of Complete Application.
C. As -Built Plans and Final Approval
1. Upon completion of a project, and before a Certificate of Compliance/Occupancy shall be
granted, the applicant shall certify that the completed project is in accordance with the approved
stormwater management plans and designs, and shall submit actual "as built" plans for all
stormwater management facilities or practices after final construction is completed.
2. The plans shall show the final design specifications for all stormwater management facilities and
practices and the field location, size, depth, and planted vegetation of all measures, controls, and
devices, as installed. The designer of the stormwater management measures and plans shall
certify, under seal, that the as -built stormwater measures, controls, and devices are in compliance
with the approved stormwater management plans and designs and with the requirements of this
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Article 7: 6BStormwater Management
Section 7.2.62BAdministration and Procedures
7.2.4. 334BApprovals
article. A final inspection and approval by the Stormwater Administrator shall occur before the
release of any performance securities.
D. Other Permits
No Certificate of Compliance/Occupancy shall be issued by the Town Inspections Department without
final as -built plans and a final inspection and approval by the Stormwater Administrator, except
where multiple units are served by the stormwater practice or facilities, in which case the Inspections
Department may elect to withhold a percentage of permits or Certificates of Compliance/Occupancy
until as -built plans are submitted and final inspection and approval has occurred.
7.2.4. Approvals
A. Effect of Approval
Approval of a Stormwater Management Permit authorizes the applicant to go forward with only the
specific plans and activities authorized in the permit. The approval shall not be construed to exempt
the applicant from obtaining other applicable approvals from local, State, and federal authorities.
B. Time Limit/Expiration
1. An approved plan shall become null and void if the applicant fails to make substantial progress
on the site within one year after the date of approval. The Stormwater Administrator may grant
a single, one-year extension of this time limit, for good cause shown, upon receiving a written
request from the applicant before the expiration of the approved plan.
2. In granting an extension, the Stormwater Administrator may require compliance with standards
adopted since the original application was submitted unless there has been substantial reliance on
the original permit and the change in standards would infringe the applicant's vested rights.
7.2.5. Stormwater Variances
A. Any person may petition the Town for a variance granting permission to use the person's land in a
manner otherwise prohibited by this article. For all proposed major and minor variances from the
requirements of this article, the Board of Adjustments shall make findings of fact showing that:
1. There are practical difficulties or unnecessary hardships that prevent compliance with the strict
letter of the article;
2. The variance is in harmony with the general purpose and intent of the local watershed protection
regulations and preserves their spirit; and
3. In granting the variance, the public safety and welfare have been assured and substantial justice
has been done.
B. In the case of a request for a minor variance, the Board of Adjustment may vary or modify any of the
regulations or provisions of the article so that the spirit of the article shall be observed, public safety
and welfare secured, and substantial justice done, and may impose reasonable and appropriate
conditions and safeguards upon any variance it grants.
C. The Board of Adjustment may attach conditions to the major or minor variance approval that support
the purpose of the local watershed protection regulations. If the variance request qualifies as a major
variance, and the Board of Adjustment decides in favor of granting the major variance, the Board
shall then prepare a preliminary record of the hearing and submit it to the North Carolina
Environmental Management Commission for review and approval. If the Commission approves the
major variance or approves with conditions or stipulations added, then the Commission shall prepare a
Commission decision which authorizes the Board of Adjustment to issue a final decision which would
include any conditions or stipulations added by the Commission. If the Commission denies the major
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Article 7: 6BStormwater Management
Section 7.3. 63BStandords
7.2.6. 336BAppeals
variance, then the Commission shall prepare a decision to be sent to the Board of Adjustment. The
Board of Adjustment shall prepare a final decision denying the major variance.
D. Appeals from the local government decision on a major or minor variance request are made on
certiorari to the local Superior Court. Appeals from the Commission decision on a major variance
request are made on judicial review to Superior Court.
E. On request of the Stormwater Administrator, any person who petitions the Board of Adjustment for a
variance under this section shall provide notice to the affected local governments of the variance
request as required under the Jordan Rule, 15A NCAC 2B.0104(r). For purposes of this notice
requirement, "affected local governments" means any local governments that withdraw water from
Lake Jordan or its tributaries downstream of the site of the proposed variance. If the proposed
variance is in a Water Supply Watershed area classified as WS II, WS III or WS IV, "affected local
governments" also includes any other local governments in the some water supply watershed as the
proposed variance. The notice shall provide a reasonable period for comments and shall direct the
comments to be sent to the Stormwater Administrator. The person petitioning for the variance shall
supply proof of notification in accordance with this section to the Stormwater Administrator.,
7.2.6. Appeals
Any aggrieved person affected by any decision, order, requirement, or determination relating to the
interpretation or application of this article made by the Stormwater Administrator, may file an appeal to
the Board of Adjustment within 30 days. Applications for an Appeal shall be filed, reviewed, and decided
in accordance with 2.5.22, Administrative Appeal, except that the Board of Adjustment shall make a final
decision on an appeal of a decision relating to civil penalties for violations of this article within 90 days
after the date the appeal application is accepted.
_SECTION 7.3. STANDARDS
7.3.1. General Standards
All development and redevelopment to which this article applies shall comply with the standards of this
section. The approval of the Stormwater Management Permit shall require an enforceable restriction on
property usage that runs with the land, such as a recorded deed restriction or protective covenants, to
ensure that future development and redevelopment maintains the site consistent with the approved project
plans.
7.3.2. Nitrogen and Phosphorus Loading
A. Nitrogen and phosphorus loads contributed by the proposed new development shall not exceed the
following unit -area mass loading rates: 2.2 and 0.82 pounds per acre per year for nitrogen and
phosphorus, respectively.
B. Notwithstanding 15A NCAC 2B.104(q), redevelopment subject to this article that would replace or
expand existing structures or improvements and would result in a net increase in built -upon area shall
have the option of either meeting the loading standards identified in subsection A or meeting a
loading rate that achieves the following nutrient loads compared to the existing development: 35
percent and five percent reduction for nitrogen and phosphorus, respectively.
C. The developer shall determine the need for engineered stormwater controls to meet these loading rate
targets by using the approved accounting tool.
7.3.3. Nitrogen and Phosphorus Standard Is Supplemental; TSS Removal
A. The nitrogen and phosphorus loading standards in this article are supplemental to, not replacements
for, stormwater standards otherwise required by federal, state, or local law, including without
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Article 7: 6BStormwater Management
Section 7.3. 63BStandards
7.3.4, 340BControl and Treatment of Runoff Volume
limitation any riparian buffer requirements applicable to the location of the development. This
includes, without limitation, the riparian buffer protection requirements of 1 SA NCAC 29.0267 and
.0268.
B. All stormwater systems used to meet these requirements shall be designed to have a minimum of 85
percent average annual removal for Total Suspended Solids (TSS).
7.3.4. Control and Treatment of Runoff Volume
A. Stormwater systems shall be designed to control and treat the runoff volume generated from all built -
upon area by one inch of rainfall; the treatment volume. This treatment volume shall not exceed the
maximum ponding depth and be drawn down pursuant to standards specific to each practice as
provided in the Design Manual. Additionally, stormwater systems shall be designed to control the
runoff volume generated from all built -upon area by an additional one-half inch of rainfall. This
additional runoff volume shall not exceed the maximum ponding depth and be drawn down pursuant
to standards specific to each practice as provided in the Design Manual.
B. To ensure that the integrity and nutrient processing functions of receiving waters and associated
riparian buffers are not compromised by erosive flows, stormwater flows from the development or
redevelopment shall not contribute to degradation of waters of the State. At a minimum, the
development or redevelopment shall not result in a net increase in peak flow leaving the site from pre -
development conditions for the 1-year, 24-hour storm; 2-year, 24-hour storm; and 10-year, 24-hour
storm events.
7.3.5. Partial Offset of Nutrient Control Requirements
A. Development subject to this article shall attain a maximum nitrogen loading rate on -site of six pounds
per acre per year for single-family detached and duplex residential development and ten pounds per
acre per year for other development, including multifamily residential, commercial, and industrial, and
shall meet any requirements for engineered stormwater controls otherwise imposed by this article. A
developer subject to this article may achieve the additional reductions in nitrogen and phosphorus
loading required by this article by use of the following options:
1. Purchasing offset credits from an approved private seller with a project located within the some
eight -digit Hydrologic Unit Code (8-digit HUC) as the proposed development. Refer to the North
Carolina Department of Environmental and Natural Resources (NCDENR) Division of Water
Resources (DWR) for approved mitigation banks with applicable and eligible credits to
Morrisville.
2. Making offset payments to the NC Ecosystem Enhancement Program contingent upon acceptance
of payments by that Program.
3. Making offset payments to the Town of Morrisville for equivalent nutrient credits at 80 percent of
the rate -calculated by the NC Ecosystem Enhancement Program.
4. A developer may propose other offset measures to the Town, including providing his or her own
off -site offset.
B. All offset measures permitted by the ordinance shall meet the requirements of 15A NCAC 02B .0273
(2) through (A) and 15A NCAC 02B .0240. Documentation and proof of purchase for offset credit
options is required prior to construction plan approval.
7.3.6. Evaluation of Standards for Stormwater Control Measures
A. Evaluation According to Contents of Design Manual
All stormwater control measures, stormwater systems and stormwater treatment practices (also
referred to as Best Management Practices, or BMPs) required under this article shall be evaluated by
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Article 7: 6BStormwater Management
Section 7.4. 648Mointenance
7.3.7. 343BDedication of BMPs, Facilities, and Improvements
the Stormwater Administrator according to the policies, criteria, and information, including technical
specifications and standards and the specific design criteria for each stormwater practice, in the
Design Manual. The Stormwater Administrator shall determine whether proposed BMPs will be
adequate to meet the requirements of this article.
B. Determination of Adequacy; Presumptions and Alternatives
Stormwater treatment practices that are designed, constructed, and maintained in accordance with the
criteria and specifications in the Design Manual and the approved accounting tool will be presumed to
meet the minimum water quality and quantity performance standards of this article. Whenever an
applicant proposes to utilize a practice or practices not designed and constructed in accordance with
the criteria and specifications in the Design Manual, the applicant shall have the burden of
demonstrating that the practice(s) will satisfy the minimum water quality and quantity performance
standards of this article. The Stormwater Administrator may require the applicant to provide the
documentation, calculations, and examples necessary for the Stormwater Administrator to determine
whether such an affirmative showing is made.
7.3.7. Dedication of BMPs, Facilities, and Improvements
The Town may accept dedication of any existing or future stormwater management facility for
maintenance, provided such facility meets all the requirements of this article and includes adequate and
perpetual access and sufficient area, by easement or otherwise, for inspection and regular maintenance.
SECTION 7.4. MAINTENANCE
7.4.1. General Standards for Maintenance
A. Function of BMPs as Intended
The owner of each engineered stormwater control installed pursuant to this article shall maintain and
operate it so as to preserve and continue its function in controlling stormwater quality and quantity at
the degree or amount of function for which the engineered stormwater control was designed.
B. Annual Maintenance Inspection and Report
1. The person responsible for maintenance of any engineered stormwater control installed pursuant
to this article shall submit to the Stormwater Administrator an inspection report from one of the
following persons performing services only in their area of competence: a qualified licensed
North Carolina Professional Engineer or registered surveyor, landscape architect, or person
certified by the North Carolina Cooperative Extension Service for stormwater treatment practice
inspection and maintenance. The inspection report shall contain all of the following:
a. The name and address of the land owner;
b. The recorded book and page number of the lot of each engineered stormwater control;
c. A statement that an inspection was made of all engineered stormwater controls;
d. The date the inspection was made;
e. A statement that all inspected engineered stormwater controls are performing properly and
are in compliance with the terms and conditions of the approved maintenance agreement
required by this article; and
f. The original signature and seal of the engineer, surveyor, or landscape architect.
2. All inspection reports shall be on forms supplied by the Stormwater Administrator. An original
inspection report shall be provided to the Stormwater Administrator beginning one year from the
date of as -built certification and each year thereafter on or before the date of the as -built
certification.
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Article 7: 6BStormwater Management
Section 7.4. 64BMaintenance
7.4.2. 345BOperotion and Maintenance Agreement
7.4.2. Operation and Maintenance Agreement
A. In General
Prior to the conveyance or transfer of any lot or building site to be served by a engineered
stormwater control pursuant to this article, and prior to issuance of any permit for development or
redevelopment requiring a engineered stormwater control pursuant to this article, the applicant
or owner of the site must execute an operation and maintenance agreement that shall be binding
on all subsequent owners of the site, portions of the site, and lots or parcels served by the
engineered stormwater control. Until the transference of all property, sites, or lots served by the
engineered stormwater control, the original owner or applicant shall have primary responsibility
for carrying out the provisions of the maintenance agreement.
2. The operation and maintenance agreement shall require the owner or owners to maintain, repair,
and, if necessary, reconstruct the engineered stormwater control, and shall state the terms,
conditions, and schedule of maintenance for the engineered stormwater control. In addition, it
shall grant to the Town a right of entry in the event that the Stormwater Administrator has reason
to believe it has become necessary to inspect, monitor, maintain, repair, or reconstruct the
engineered stormwater control; however, in no case shall the right of entry, of itself, confer an
obligation on the Town to assume responsibility for the engineered stormwater control.
3. The operation and maintenance agreement must be approved by the Stormwater Administrator
prior to plan approval, and it shall be referenced on the final plat and shall be recorded with
the Register of Deeds of the county in which the stormwater control is located upon final plat
approval. A copy of the recorded maintenance agreement shall be given to the Stormwater
Administrator within 14 days following its recordation.
B. Special Requirement for homeowners' and Other Associations
For all engineered stormwater controls required pursuant to this article and that are to be or are
owned and maintained by a homeowners' association, property owners' association, or similar entity,
the required operation and maintenance agreement shall include all of the following provisions:
1. Acknowledgment that the association shall continuously operate and maintain the stormwater
control and management facilities.
2. Establishment of an escrow account, which can be spent solely for sediment removal, structural,
biological or vegetative replacement, major repair, or reconstruction of the engineered
stormwater controls. If engineered stormwater controls are not performing adequately or as
intended or are not properly maintained, the Town, in its sole discretion, may remedy the
situation, and in such instances the Town shall be fully reimbursed from the escrow account.
Escrowed funds may be spent by the association for sediment removal, structural, biological or
vegetative replacement, major repair, and reconstruction of the engineered stormwater controls,
provided that the Town shall first consent to the expenditure.
3. Both developer contribution and annual sinking funds shall fund the escrow account. Prior to plat
recordation or issuance of construction permits, whichever shall first occur, the developer shall pay
into the escrow account an amount equal to 15 percent of the initial construction cost of the
engineered stormwater controls. Two-thirds of the total amount of sinking fund budget shall be
deposited into the escrow account within the first five years and the full amount shall be
deposited within ten years following initial construction of the engineered stormwater controls.
Funds shall be deposited each year into the escrow account. A portion of the annual assessments
of the association shall include an allocation into the escrow account. Any funds drawn down from
the escrow account shall be replaced in accordance with the schedule of anticipated work used to
create the sinking fund budget.
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Article 7: 66Stormwater Management
Section 7.4. 64BMulntenance
7.4.3. 346BInspection Program
4. The percent of developer contribution and lengths of time to fund the escrow account may be
varied by the Town depending on the design and materials of the stormwater control and
management facility.
5. Granting to the Town a right of entry to inspect, monitor, maintain, repair, and reconstruct
engineered stormwater controls.
6. Allowing the Town to recover from the association and its members any and all costs the Town
expends to maintain or repair the engineered stormwater controls or to correct any operational
deficiencies. Failure to pay the Town all of its expended costs, after 45 days written notice, shall
constitute a breach of the agreement. In case of a deficiency, the Town shall thereafter be
entitled to bring an action against the association and its members to pay, or foreclose upon the
lien hereby authorized by the agreement against the property, or both. Interest, collection costs,
and attorney fees shall be added to the recovery.
7. A statement that this agreement shall not obligate the Town to maintain or repair any engineered
stormwater controls, and the Town shall not be liable to any person for the condition or operation
of engineered stormwater controls.
8. A statement that this agreement shall not in any way diminish, limit, or restrict the right of the
Town to enforce any of its ordinances as authorized by law.
9. A prdvision indemnifying and holding harmless the Town for any costs and injuries arising from or
related to the engineered stormwater control, unless the Town has agreed in writing to assume the
maintenance responsibility for the BMP and has accepted dedication of any and all rights
necessary to carry out that maintenance.
7.4.3. Inspection Program
A. Inspections and inspection programs by the Town may be conducted or established on any reasonable
basis, including but not limited to routine inspections, random inspections, inspections based upon
complaints or other notice of possible violations, and joint inspections with other agencies inspecting
under environmental or safety laws. Inspections may include, but are not limited to: reviewing
maintenance and repair records; sampling discharges, surface water, groundwater, and material or
water in BMPs; and evaluating the condition of BMPs.
B. If the owner or occupant of any property refuses to permit such inspection, the Stormwater
'Administrator shall proceed to obtain on administrative search warrant pursuant to N.C.G.S. 15-27.2
or its successor. No person shall obstruct, hamper or interfere with the Stormwater Administrator while
carrying out his or her official duties.
7.4.4. Performance Securitv for Installation and Performance
A. Performance Security
The Town shall require the submittal of a performance security with cash escrow prior to issuance of a
permit in order to ensure that the engineered stormwater controls are:
1. Installed by the permit holder as required by the approved stormwater management plan,
and/or
2. Maintained by the owner as required by the operation and maintenance agreement.
B. Amount
1. Installation
The amount of an installation performance security shall be the total estimated construction cost of
the BMPs approved under the permit, plus 50 percent.
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Article 7: 6RStormwater Management
Section 7.4.64BMaintenance
7.4.5. 348BNotice to Owners
2. Maintenance
The amount of a maintenance performance security shall be 30 percent of the total estimated
construction cost of the BMPs approved under the permit.
C. Uses of Performance Security
Forfeiture Provisions
The performance security shall contain forfeiture provisions for failure, after proper notice, to
complete work within the time specified, or to initiate or maintain any actions which may be
required of the applicant or owner in accordance with this article, approvals issued pursuant to
this article, or an operation and maintenance agreement established pursuant to this article.
Default
Upon default of the owner to construct, maintain, repair and, if necessary, reconstruct any
engineered stormwater control in accordance with the applicable permit or operation and
maintenance agreement, the Stormwater Administrator shall obtain and use all or any portion of
the security to make necessary improvements based on an engineering estimate. Such
expenditure of funds shall only be made after requesting the owner to comply with the permit or
maintenance agreement. In the event of a default triggering the use of installation performance
security, the Town shall not return any of the unused deposited cash funds or other security, which
shall be retained for maintenance.
3. Costs in Excess of Performance Security
If the Town takes action upon such failure by the applicant or owner, the Town may collect from
the applicant or owner the difference between the amount of the reasonable cost of such action
and the amount of the security held, in addition to any other penalties or damages due.
4. Refund
Within 60 days of the final approval, the installation performance security shall be refunded to
the applicant or terminated, except any amount attributable to the cost (plus 50 percent) of
landscaping installation and ongoing maintenance associated with the BMPs covered by the
security. Any such landscaping shall be inspected one year after installation with replacement for
compliance with the approved plans and specifications and, if in compliance, the portion of the
financial security attributable to landscaping shall be released.
7.4.5. Notice to Owners
A. Deed Recordation and Indications on Plat
The applicable operations and maintenance agreement pertaining to every engineered stormwater
control shall be referenced on the final plat and shall be recorded with the Register of Deeds of the
county in which the stormwater control is located upon final plot approval. If no subdivision plat is
recorded for the site, then the operations and maintenance agreement shall be recorded with the
Register of Deeds of the appropriate county so as to appear in the chain of title of all subsequent
purchasers under generally accepted searching principles.
B. Signage
Where appropriate in the determination of the Stormwater Administrator to assure compliance with
this article, engineered stormwater controls shall be posted with a conspicuous sign stating who is
responsible for required maintenance and annual inspection. The sign shall be maintained so as to
remain visible and legible and comply with the standards in Section 5.16, Signage.
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Article 7: 61BStormwater Management
Section 7.5. 65BEnforcement and Violations
7.4.6. 349BRecords of Installation and Maintenance Activities
7.4.6. Records of Installation and Maintenance Activities
The owner of each engineered stormwater control shall keep records of inspections, maintenance, and
repairs for at least five years from the date of creation of the record and shall submit the some upon
reasonable request to the Stormwater Administrator.
7.4.7. Nuisance
The owner of each stormwater BMP, whether engineered stormwater control or non -engineered stormwater
control, shall maintain it so as not to create or result in a nuisance condition.
7.4.8. Maintenance Easement
Every engineered stormwater control installed pursuant to this article shall be made accessible for
adequate maintenance and repair by a maintenance easement. The easement shall be recorded and its
terms shall specify who may make use of the easement and for what purposes.
SECTION 7.5. ENFORCEMENT AND VIOLATIONS
7.5.1. General
A. Authority to Enforce
The provisions of this article shall be enforced by the Stormwater Administrator, his or her designee, or
any authorized agent of the Town. Whenever this section refers to the Stormwater Administrator, it
includes his or her designee as well as any authorized agent of the Town.
B. Violation Unlawful
Any failure to comply with an applicable requirement, prohibition, standard, or limitation imposed by
this article, or the terms or conditions of any permit or other development approval or authorization
granted pursuant to this ordinance, is unlawful and shall constitute a violation of this Ordinance.
C. Each Day a Separate Offense
Each day that a violation continues shall constitute a separate and distinct violation or offense.
D. Responsible Persons/Entities
1. Any person who erects, constructs, reconstructs, alters (whether actively or passively), or fails to
erect, construct, reconstruct, alter, repair, or maintain any structure, BMP, engineered stormwater
control, practice, or condition in violation of this article shall be subject to the remedies, penalties,
and/or enforcement actions in accordance with this section. Persons subject to the remedies and
penalties set forth herein may include any architect, engineer, builder, contractor, developer,
agency, or any other person who participates in, assists, directs, creates, causes, or maintains a
condition that results in or constitutes a violation of this article, or fails to take appropriate: action
so that a violation of this article results or persists; or an owner, any tenant or occupant, or any
other person, who has control over, or responsibility for, the use or development of the property
on which the violation occurs.
2. For the purposes of this article, responsible person(s) shall include, but not be limited to:
a. Person Maintaining Condition Resulting in or Constituting Violation
An architect, engineer, builder, contractor, developer, agency, or any other person who
participates in, assists, directs, creates, causes, or maintains a condition that constitutes a
violation of this article, or fails to take appropriate action so that a violation of this article
results or persists.
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Article 7: 6$Stormwater Management
Section 7.5.65BEnforcement and Violations
7.5.2. 353BRemedies and Penalties
b. Person Responsible for Land or Use of Land
The owner of the land on which the violation occurs, any tenant or occupant of the property,
any person who is responsible for stormwater controls or practices pursuant to a private
agreement or public document, or any person, who has control over, or responsibility for, the
use or development of the property.
7.5.2. Remedies and Penalties
The remedies and penalties provided for violations of this article, whether civil or criminal, shall be
cumulative and in addition to any other remedy provided by law, and may be exercised in any order.
A. Remedies
1. Withholding of Certificate of Compliance/Occupancy
The Stormwater Administrator or other authorized agent may refuse to issue a Certificate of
Compliance/Occuponcy for the building or other improvements constructed or being constructed
on the site and served by the stormwater practices in question until the applicant or other
responsible person has taken the remedial measures set forth in the notice of violation or has
otherwise cured the violations described therein.
2. Disapproval of Subsequent Permits and Development Approvals
As long as a violation of this article continues and remains uncorrected, the Stormwater
Administrator or other authorized agent may withhold, and the Town Council may disapprove,
any request for permit or development approval or authorization provided for by this Ordinance
and/or building regulations, as appropriate for the land on which the violation occurs.
3. Injunction, Abatements, Etc.
The Stormwater Administrator, with the written authorization of the Town Manager, may institute
an action in a court of competent jurisdiction for a mandatory or prohibitory injunction and order
of abatement to correct a violation of this article. Any person violating this article shall be subject
to the full range of equitable remedies provided in the General Statutes or at common law,
4. Correction as Public Health Nuisance, Costs as Lien, etc.
If the violation is deemed dangerous or prejudicial to the public health or public safety and is
within the geographic limits prescribed by N.C.G.S 160A-193, the Stormwater Administrator,
with the written authorization of the Town Manager, may cause the violation to be corrected and
the costs to be assessed as a lien against the property.
5. Stop Work Order
The Stormwater Administrator may issue a stop work order to the person(s) violating this article.
The stop work order shall remain in effect until the person has taken the remedial measures set
forth in the notice of violation or has otherwise cured the violation or violations described therein.
The stop work order may be withdrawn or modified to enable the person to take the necessary
remedial measures to cure such violation or violations.
B. Civil Penalties
The Stormwater Administrator may assess a civil penalty against any person who violates any
provision of this article or of a permit or other requirement pursuant to this article. Civil penalties may
be assessed up to the full amount of penalty authorized by N.C.G.S. 143-21 5.6A.
C. Criminal Penalties
Violation of this article may be enforced as a misdemeanor subject to the maximum fine permissible
under North Carolina law.
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Article 7: 6B51ormwater Management
Section 7.5. 65BEnforcement and Violations
7.5.3. 354BProcedures
7.5.3. Procedures
A. Initiation/Complaint
Whenever a violation of this article occurs, or is alleged to have occurred, any person may file a
written complaint. Such complaint shall stare fully the alleged violation and the basis thereof, and shall
be filed with the Stormwater Administrator, who shall record the complaint. The complaint shall be
investigated promptly by the Stormwater Administrator.
B. Inspection
The Stormwater Administrator shall have the authority, upon presentation of proper credentials, to
enter and inspect any land, building, structure, or premises to ensure compliance with this article.
C. Nonce of Violation and Order to Correct
1 . When the Stormwater Administrator finds that any building, structure, or land is in violation of this
article, the Stormwater Administrator shall notify, in writing, the property owner or other person
violating this article. The notification shall indicate the nature of the violation, contain the address
or other description of the site upon which the violation is occurring, order the necessary action to
abate the violation, and give a deadline for correcting the violation. If civil penalties are to be
assessed, the notice of violation shall also contain a statement of the civil penalties to be
assessed, the time of their accrual, and the time within which they must be paid or be subject to
collection as a debt.
2. The Stormwater Administrator may deliver the notice of violation and correction order by any
means authorized for the service of documents by Rule 4 of the North Carolina Rules of Civil
Procedure.
3. If a violation is not corrected within a reasonable period of time, as provided in the notification,
the Stormwater Administrator may take appropriate action under this article to correct and
abate the violation and to ensure compliance with this article.
D. Extension of Time
A person who receives a notice of violation and correction order, or the owner of the land on which the
violation occurs, may submit to the Stormwater Administrator a written request for an extension of time
for correction of the violation. On determining that the request includes enough information to show
that the violation cannot be corrected within the specified time limit for reasons beyond the control of
the person requesting the extension, the Stormwater Administrator may extend the time limit as is
reasonably necessary to allow timely correction of the violation, up to, but not exceeding 30 days. The
Stormwater Administrator may grant 30-day extensions in addition to the foregoing extension if the
violation cannot be corrected within the permitted time due to circumstances beyond the control of the
person violating this article. The Stormwater Administrator may grant an extension only by written
notice of extension. The notice of extension shall state the date prior to which correction must be: made,
after which the violator will be subject to the penalties described in the notice of violation and
correction order.
E. Enforcement after Time to Correct
After the time has expired to correct a violation, including any extension(s) if authorized by the
Stormwater Administrator, the Stormwater Administrator shall determine if the violation is corrected.
The Stormwater Administrator may act to impose one or more of the remedies and penalties
authorized by this article whether or not the violation has been corrected.
F. Emergency Enforcement
If delay in correcting a violation would seriously threaten the effective enforcement of this article or
pose an immediate danger to the public health, safety, or welfare, then the Stormwater Administrator
may order the immediate cessation of a violation. Any person so ordered shall cease any violation
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Article 7: 6BStormwater Management
Section 7.6. 66BIllicit Discharges and Connections
7.6.1. 355Billicit Discharges
immediately. The Stormwater Administrator may seek immediate enforcement, without prior written
notice, through any remedy or penalty authorized by this article.
ISECTION 7.6.= ILLICIT tDISCHARGES AND CONNECTIONS ^ _
7.6.1. Illicit Discharges
A. No person shall cause or allow the discharge, emission, disposal, pouring, or pumping directly or
indirectly to any stormwater conveyance, the waters of the State, or upon the land in manner and
amount that the substance is likely to reach a stormwater conveyance or the waters of the State, any
liquid, 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.
1. Water line flushing;
2. Landscape irrigation;
3. Diverted stream flows;
4. Rising ground waters;
5. Uncontaminated ground water infiltration (as defined at 40 CFR 35.2005(20)};
6. Uncontaminated pumped ground water;
7. Discharges from potable water sources;
8. Foundation drains;
9. Air conditioning condensation;
10. Irrigation water;
11. Springs;
12. Water from crawl space pumps;
13. Footing drains;
14. Lawn watering;
15. Individual residential car washing;
16. Flows from riparian habitats and wetlands;
17. Dechiorinoted swimming pool discharges;
18. Street wash water; and
19. Other non-stormwater discharges for which a valid NPDES discharge permit has been approved
and issued by the State of North Carolina, and provided that any such discharges to the
municipal separate storm sewer system shall be authorized by the Town.
B. Prohibited substances include but are not limited to: oil, anti -freeze, chemicals, animal waste, paints,
garbage, and litter.
7.6.2. Illicit Connections
A. Connections to a stormwater conveyance or stormwater conveyance system that allow the discharge of
non-stormwater, other than the exclusions described in subsection 7.6.1 above, are unlawful. Prohibited
connections include, but are not limited to: floor drains, waste water from washing machines or sanitary
October 2013 Morrisville, NC
Page 7-1 8 Unified Development Ordinance - Public Hearing Draft

Article 7: 6B5tormwater Management
Section 7.6. 66BIllicit Discharges and Connections
7.6.3. 35765pills
sewers, wash water from commercial vehicle washing or steam cleaning, and waste water from septic
systems.
B. Where such connections exist in violation of this section and said connections were made prior to the
adoption of this provision or any other regulation prohibiting such connections, the property owner or
the person using said connection shall remove the connection within one year following the effective
date of this article. However, the one-year 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 harm to real or personal property,
natural resources, wildlife, or habitat.
C. Where it is determined that said 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 other than this section, the Stormwater Administrator shall
designate the time within which the connection shall be removed. In setting the time limit for compliance,
the Stormwater Administrator shall take into consideration:
1. The quantity and complexity of the work,
2. The consequences of delay,
3. The potential harm to the environment, to the public health, and to public and private property,
and
4. The cost of remedying the damage.
7.6.3. Spills
A. Spills or leaks of polluting substances released, discharged to, or having the potential to released or
discharged to the stormwater conveyance system, shall be contained, controlled, collected, and
properly disposed. All affected areas shall be restored to their preexisting condition.
B. Persons in control of the polluting substances immediately prior to their release or discharge, and
persons owning the property on which the substances were released or discharged, shall immediately
notify the Fire Chief of the release or discharge, as well as making any required notifications under
State and federal law. 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 of said spill or leak,
nor shall such notification relieve any person from other liability which may be imposed by State or
other law.
7.6.4. Nuisance
Illicit discharges and illicit connections which exist within the Town 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 Code of Ordinances, Chapter 18, Article III (Storm Drainage).
Morrisville, NC October 2013
Unified Development Ordinance - Public Hearing Draft Page 7-19

In
NPDES Phase II
Stormwater Management Plan
Updated October 30, 2008
�i
"MO\
�N
Town of Morrisville
100 Town Hall Drive
P.O. Box 166
Morrisville, NC 27560
Prepared by:
Keith P. Billy, PE
Thomas E. Langan, PE
Town of Morrisville
Engineering Department

r,
TABLE OF CONTENTS
1. STORM SEWER SYSTEM INFORMATION ---------------------------------
1. 1. Population Served -----------------------------------------------------------
1.2. Growth Rate -----------------------------------------------------------------
1.3. Jurisdictional and MS4 Service Areas -----------------------------------
1.4, MS4 Conveyance System --------------------------------------------------
1.5. Land Use Composition Estimates ----------------------------------------
1.6. Estimate Methodology -----------------------------------------------------
1.7. TMDL Identification-------------------------------------------------------
2. RECEIVING STREAMS----------------------
3. EXISTING WATER QUALITY PROGRAMS --------------------------------
3.1. Local Programs --------------------------------------------------------------
3.2. State Programs--------------------------------------------------------------
4. PERMITTING INFORMATION ------------------------------------------------
4.1. Responsible Party Contact List ---------------- 7--------------------------
4.2. Organizational Chart -------------------------------------------------------
4.3. Signing Official -------------------------------------------------------------
4.4. Duly Authorized Representative------------------------------------------
5. Co -Permitting Information (if applicable)-----------------------------
6. Reliance on Other Government Entity-------------------------------------------
7. STORMWATER MANAGEMENT PROGRAM -----------------------------
7. L Public
Education and Outreach -------------------------------------------
7.1.1.
Objectives for Public Education and Outreach ----------------
7.1.2.
BMPs for Public Education and Outreach ---------------------
7.1.3.
Target Audience ---------------------------------------------------
7.1.4.
Target Pollutant Sources -----------------------------------------
7.1.5.
Outreach Program -------------------------------------------------
7.1.6.
Decision Process --------------------------------------------------
7.1.7.
Evaluation ----------------------------------------------------------
7.2. Public
Involvement and Participation ------------------------------------
7.2.1.
Objectives for Public Involvement and Participation--------
7.2.2.
BMPs for Public Involvement and Participation--------------
7.2.3.
Target Audience ---------------------------------------------------
7.2.4.
Participation Program ---------------------------------------------
7.2.5.
Decision Process --------------------------------------------------
7.2.6.
Evaluation----------------------------------------------------------
1
I
1
1
2
2
2
3
4
4
4
5
5
6
7
7
7
7
7
7
7
8
9
9
9
9
10
11
11
12
13
13
14
14

7.3
7.4.
7.5
7.6.
TABLE OF CONTENTS
(Continued)
Illicit Discharge Detection and Elimination -----------------------------
15
7.3.1.
Objectives for Illicit Discharge Detection and Elimination ---
15
7.3.2.
BMPs for Illicit Discharge Detection and Elimination --------
16
7.3.3.
Storm Sewer System Map -----------------------------------------
18
7.3.4.
Regulatory Mechanism --------------------------------------------
18
7.3.5.
Enforcement---------------------------------------------------------
18
7.3.6.
Detection and Elimination -----------------------------------------
19
7.3.7.
Illicit Non- Stormwater Discharges ------------------------------
19
7.3.8.
Allowable Non -Storm water Discharges ------------------------
20
7.3.9.
Outreach-------------------------------------------------------------
20
7.3.10.
Decision Process ----------------------------------------------------
21
7.3.11.
Evaluation-----------------------------------------------------------
21
Construction Site Runoff Control -----------------------------------------
23
7.4.1.
Objectives for Construction Site Runoff Control ---------------
23
7.4.2.
BMPs for Construction Site Runoff Control --------------------
24
Post -Construction Site Runoff Controls ---------------------------------
26
7.5.1.
Objectives for Post -Construction Site RunofffControls-------
26
7.5.2.
BMPs for Post -Construction Site Runoff Controls ------------
27
7.5.3.
Evaluation of' Post -Construction Site Runoff Controls --------
29
Pollution Prevention/Good Housekeeping for Municipal Operations
34
7.6.1.
Objective for Pollution Prevention/Good Housekeeping for
Municipal Operations ----------------------------------------------
34
7.6.2.
BMPs for the Pollution Prevention/Good Housekeeping for
Municipal Operations ----------------------------------------------
35
7.6.3.
Affected Operations ------------------------------------------------
36
7.6.4.
Training--------------------------------------------------------------
36
7.6.5.
Maintenance and Inspections -------------------------------------
36
7.6.6.
Vehicular Operations -----------------------------------------------
36
7.6.7.
Waste Disposal------------------------------------------------------
36
7.6.8.
Flood Management Projects ---------------------------------------
36
7.6.9.
Existing Ordinances ------------------------------------------------
37
7.6.10.
Other Evaluations----------------------------------------------------
37
7.6.11.
Decision Process ----------------------------------------------------
37
7.6.12,
Evaluation-----------------------------------------------------------
37

Storm Sewer Svstem Information
1.1 Population Served
Morrisville's population estimate has been adjusted to reflect the July 1, 2007
Certified Municipal Estimate. According to the 2007 North Carolina Certified
Municipal Estimate prepared by the State Demographer with the Office of State
Budget and Management, the population of Morrisville was 14,308. This is a
174.7% increase from the 2000 U.S. Census, in which the population of
Morrisville was 5,208.
1.2 Growth Rate
The population estimate for renter occupied (apartments) uses an average of 1,91
persons per dwelling unit/household. The population estimate for owner -
occupied (condominiums, townhomes, and single-family homes) uses an average
of 2.43 persons per dwelling unit/household (Source: Special Census of
Morrisville lolvn, Norlh Carolina, March 11, 2004 Table DP-1). It is estimated
that Morrisville added an average of 2.2 people per day in 2007.
Town of Morrisville
Population
Percent Growth
1980 Census 251
1990 Census 1 1,022
307.2% (since 1980 Census)
2000 Census 5,208
11409.6% (since 1990 Census)
2004 Special Census
11,915
1128.8% (since 2000 Census)
2005 NC Certified Estimate
12,829
2006 NC Certified Estimate 13,501
2007 NC Certified Estimate
14,308
174.7% (since 2000 Census)
1.3 Jurisdictional and MS4 Service Areas
Morrisville's corporate limits have increased to a total of 8.1 square miles and our
ETJ has a total acreage of approximately 9.8 square miles.
1.4 MS4 Conveyance System
Most stormwater runoff begins in any given sub -basin as sheet flow (creating a
"non -point source" for surface water pollution) and ultimately becomes
concentrated flow at the receiving stream. In the Town's urban areas, stormwater
runoff often becomes concentrated prior to the receiving stream as it enters
roadside ditches or pipe systems. As development occurs in the Town of
Morrisville, an increasing portion of runoff will flow across man-made
impervious surfaces and become concentrated in elan -made pipes or ditches prior
to entering the receiving stream.
As with most modern storm sewer systems, the Town's MS4 is not combined
with any portion of its sanitary sewer system or other discharges (unless by illicit
connections). Currently, the responsibility for the stormwater conveyances and
infrastructure rests solely with the owner, or entity, which possesses specific
rights to the system. For example, private drainage systems and drainage ditches

are maintained solely by property owners or other responsible parties (i.c.
homeowner's associations). NCDOT streets, storm drainage, and right-of-way
that traverse throughbut the Town's ETJ are maintained by NCDOT. The "['own
assumes responsibility for the upkeep of storm drainage pipes and roadside
ditches that exist inside the Town -owned right-of-way or drainage casements.
The Town has adopted post construction stormwater management and illicit
discharge connection policies through its new Design and Construction Ordinance
specifying the details of how the town with enforce and regulate stormwater
issues within its jurisdiction. A primary goal of the Town's stormwater program is
to assign responsibility to private owners and public agencies alike and hold all
parties, including itself, accountable for pollutants that enter the MS4 and for the
water quality of its receiving streams.
1.5 Land Use Composition Estimate
Land Use
Acreage
Very Low Density Residential
307
6%
Low Density Residential
554
10%
Medium Density Residential
445
8%
High Density Residential
488
9%
Group Living Facility
7
0%
Mixed Use
92
2%
Commercial - Lodging;
43
1%
Commercial - Retail/Services
320
6%
Office
512
9%
Place of'
Worship/Cemetery/Civic Group
42
1%
Public
Facility/School/Institution
97
2%
Industrial -
Distribution/Warehouse
525
10°/,
Industrial - Manufacturing
101
2%
Private Open Space/Recreation
406
8%
Public Park/Greenway/Open
Space
214
4%
Utilities
20
0%
Vacant
1224
23%
Sum:
5397
100%
1.6 Estimate Methodology
The percentages were calculated based on G1S data using Wake County parcel
data dated January 2008.
1.7 TMDL Identification
Section 303(d) of the Clean Water Act requires States to develop a list of Waters
not meeting federal water quality standards and to correct the impaired waters by
developing a management strategy or a total maxinnun daily loading (TMDL).
According to North Carolina's 2006 Impaired Waters List, a portion of Crabtree
Creek is the only currently impaired stream within the Town's jurisdiction.
Crabtree Creek is currently not supporting (NS) because of an impaired biological
2

classification. There are also indications of nutrient enrichment in this creek. The
Basinwide Plan recommends that local initiatives are needed to improve water
quality in Crabtree Creek and DWQ encourages development of a land use plan
and stormwater program that protects the water quality in Crabtree Creek. The
Town's NPDES Phase If Stormwater Management Program is consistent with the
recommendations in the Basinwide Plan and should help improve water duality in
Crabtree Creek.
The State of North Carolina has also developed management strategies that set
forth specific target levels of nutrient loading for certain nutrient sensitive waters.
This is similar to, but not directly associated with, the federal requirements for
TMDL's. The Neuse River Basin Management Strategies set forth various
strategies (including Riparian Buffer Rules) with the goal of reducing nitrogen to
more acceptable levels. Additionally, the Jordan Water Supply Nutrient Strategy
will be delivered to the NC General Assembly for potential adoption during the
2009 legislative session. The Jordan Lake Rules include target level nutrient
loading and riparian buffer rule requirement that would be applicable to the Cape
Fear River portion of the Town.
Receiving Streams
Cape Fear River Basin
Receiving Stream
Name
Stream Segment
Water Quality
Classification
Use Support Rating
Water Quality Issues
Kit Creek
16-41-1-17-2- 0.3
C; NSW
NR
Nutrients *
Kit Creek
I6-41-1-17-2- 0.7
WS-1V; NSW
NR
Nutrients *
NR = Not Rated in the current Basinwide Water Quality Plan.
* = Nutrients from nonpoint sources was identified as the biggest issue facing water quality throughout
the basin.
Neuse River Basin
Receiving Stream
Name
Stream Segment
Water Quality
Classification
Use Support
Rating
Water Quality
Issues
Crabtree Creek
27-33-(1)
C NSW
Impaired
Poor Bioclassiftcation;
Nutrients*
Crabtree Creek
27-33- 3.5
B; NSW
Su ortiat
Nutrients *
Cedar Creek
27-12-1-1- ]
C; NSW
NR
Nutrients*
Cedar Creek
27-12-1-1 2
WS-IV; NSW
NR
Nutrients *
Stirrup Iron Creek
27-33-4-2
C; NSW
NR
Nutrients *
Turkev Creek
27-33-2
C; NSW
NR
Nutrients *
Indian Creek
NIA — from source
to Crabtree Creek
NR
Nutrients *
NR = Not Rated in the current Basinwide Water Quality Ilan.
* = Nutrients from nonpoint sources was identified as the biggest issue facing water quality throughout
the basin.

3. Existing Water Quality Programs
3.1. Local Programs
The Town currently does not provide staff or have any programs that specifically
address water quality. To meet its regulatory requirements, the Town defers all
relevant water quality issues to the appropriate governing state or county agency.
For example, development projects that disturb more than one acre of land are
referred to Wake County for erosion control review, in accordance with the NC
Sedimentation Pollution Control Act of 1973. (Note: Wake County operates
their program under delegated authority from the NC Division of Land
Resources). Also, any projects with buffer related issues, nutrient sensitive
waters, or general issues regarding water quality standards are referred to NC
Division of Water Quality, in accordance with 15A NCAC 213.0100 and .0200
(see next section).
3.2. State Programs
The State of North Carolina developed its own water quality standards and
classifications program pursuant to G.S. 143-214.1 and 15A NCAC 213.0100 and
.0200. The State's program began in the early 1950's and has been modified over
time to be consistent with the Federal Clean Water Act as well as its own basin -
wide approach to water quality.
One aspect of the state basin -wide studies, which applies directly to the Town's
surface waters, is the classification of certain waters as nutrient sensitive waters
(NSW supplemental classification). The portion of the Town in the Neuse River
basin have been assigned the supplemental classification,of NSW, meaning,
generally, that there may be.various nutrient reduction strategies imposed
depending on location within the basin. The Neuse River NSW Management
Strategy became effective in 1998 and established a goal to reduce the average
annual nitrogen loading, relative to background levels, by a minimum of30% by
2004. This management strategy imposed basin -wide buffer regulations and
required larger and growing municipalities to implement NSW stormwater
programs to help meet the 30% nitrogen reduction goal. The Town of Morrisville
was not one of these mandated municipalities, although the Town does currently
defer all buffer related issues and water quality enforcement, in general, to the NC
Division of Water Quality. The Town voluntarily adopted and is currently
applying the nutrient sensitive water policies from the Neuse River Basin
regulations within its Design and Construction Ordinance on November 26, 2007.
Through the ordinance the Town is currently enforcing the Neusc River nutrient
reduction limits and buffer regulations throughout its entire jurisdiction, including
the Cape Fear River Basin.
Approximately 60% of the waters in the Cape Fear subbasin are impaired by
nonpoint source pollution and all the waters are affected by nonpoint sources.
Currently, none of these impaired waters are in the Town's ETJ. New legislation
will be up for adoption during the 2009 legislative session by the North Carolina
General Assembly regarding the Jordan Lake Water Supply Nutrient Strategy.
4

According the current version of the draft legislation the Town of Morrisville
would be mandated to meet the specific nutrient loading and buffer requirements
for the Jordan Lake watershed. The Jordan Lake watershed encompasses the
entire portion of the Town within the Cape Fear watershed. The proposed Jordan
Lake Nutrient rules include target level Nitrogen and Phosphorus loading and
riparian buffer rule requirements that would be applicable to the Cape Fear River
portion of the Town.
4. Permitting Information
4.1. Responsible Party Contact List
The following table lists each separate component program that will make up the
Town's overall Stormwater Program as well as the current individual and job title
responsible for implementing it:
Component
Responsible
Contact
Phone
Fax
Email
Program
Position
Overall Administration
Town Manager
John Whitson
463-6150
481-2907
iwhitsonfir?ci.morrisviIle. tic, Us
Public Education &
Engineering Dept
Keith Billy,
463-6191,
468-601 1
khilly.n ci.niorrisville.ric.tis
Outreach Program
Town l?n meer
Public Involvement &
Engineering Dept
Keith Billy,
463 6191
468 601 ]
kbilly cuci.mirrrrsvillc.nc.us
Participation Program
Town Fn meer
Illicit Discharge
Keith Billy,
Detection & Elimination
Engineering Dept
Town Engineer
463-6191
468-601 I
kl3illy ir;ci.rni�rrisvillc.nc.us
Program
Construction Site Runoff
Make County
Kathryn Hobby
856-7341
856-2747
k<rihrvn.hohbv(rDco.a;rkc.nc.us
Prorani
Post -Construction
Tom Langan,
Stormwater Management
Engineering Dept
Civil Engineer
463-6216
468-601 1
tlangan(@cLmorrisville.nc'Lis
Program
Pollution Prevention/
Good Housekeeping
Engineering Dept
, Keith Billy
463-6191
468-601 I
kbillv�i?ci.morris�'illc.nc.rrs
(Municipal O&M)
Town Engineer
Program

4.2. Organizational Chart
Town of Morrisville
NPDES Phase Il Stormwater Permit

4.3. Signing Official
The principal executive officer for the Town is the Town Manager. Mr. John A.
Whitson currently holds this position and will be the signing official for the
NPDES Phase it Stonmvater permit application.
4.4. Duly Authorized Representative
The Town of Morrisville is not delegating permit application responsibility to
someone other than the signing official.
5. Co-Permittin r Information
The Town does not intend to share responsibilities with another municipality to fulfill its
NPDES Phase 11 permit obligations; therefore, co -permitting information is not
applicable.
b. Reliance on Other Government Entit (to Satisfy One or More Permit Obligations)
The Town has adopted the Wake County Sediment and Erosion Ordinance in Part C,
Article 11, Section 12 of its Zoning Ordinance and established an agreement for Wake
County to administer its sediment and erosion control program. The Town of Morrisville
currently relies on Wake County Environmental Services to administer the sedimentation
and erosion control program within the Town's jurisdiction in accordance with the North
Carolina Sedimentation Pollution Control Act of 1973. The Town will continue this
relationship as part of their NPDES Phase II Program to meet the requirements of tile
Construction Site Stonnwater Runoff Control minimum measure.
7. Stormryat_er Manap-ement_Pror-ram Plan
7.1. Public Education and Outreach
7.1.1. Objectives for Public Education and Outreach
7.1.1.1. Distribute educational materials to the community.
7.1.1.2. Conduct public outreach activities.
7.1.1.3. Raise public awareness on the causes and impacts of
stormwater pollution.
7.1.1.4. Inform the public on steps they can take to reduce or prevent
stormwater pollution.

7.1.2. BMPs for Public Education and Outreach
B,N9P
Measurable Goals
YR
YR
YR
YR
l'R
Action
t
2
3
4
5
(a)
Establish a Public Education and
Develop a public education program and
X
X
X
X
X
A local govermental partner in Clean Water
Outreach Program
implement within 12 months of the permit
Education Partnership (CWEP). The CWEP
issue date. incorporate outreach elements
runs radio and television campaigns, provides
for significant minority and disadvantaged
printed brochures and also maintains a website
communities.
to communicate the important fact that clean
water is vital for healthy ecosystems and a high
quality of life for area residents within the Tar -
Pamlico, Neuse, and Cape Fear River Basins.
(b)
Informational Website
Develop and maintain internet website.
X
X
X
X
An initial informational stormwater web page
Post newsletters articles on stormwater,
has been developed and added to the Town's
information on water quality, stormwater
website, containing basic elements and goals
projects and activities, and ways to contact
related to the NPDES program. The website
stormwater management program staff.
will be revised to add additional content
including newsletters, articles on stormwater,
information on water quality, stormwater
projects and activities, and also provide links to
CWEP, Wake County Erosion and Sediment
Control, NC Division of Water Quality, and the
EPA. The updated website will be up and
running by the end of December 2008.
(c)
Public education materials for
Develop general stormwater educational
X
X
X
X
X
Distribute annually relevant educational
schools, homeowners, and/or
material to appropriately target groups
materials, provided by CWEP, Wake County,
businesses
likely to have a significant stormwater
NC Division of Water Quality, and the IPA, to
impact. Instead of developing its own
Cedar Fork and Morrisville Elementary
materials, the permittee may rely on state-
Schools.
supplied Public Education and Outreach
materials, as available, when implementing
its own program.
(d)
Public education material
Distribute written educational material to a
X
X
X
X
X
Display educational materials provided by
dissemination
broad public audience. Possibilities
CWEP at the lobby of Town Hall.
include, but are not limited to, utility
Inclusion of stormwater educational material
mailouts and at special events.
within "The Morrisville Connection", the
Town's official monthly newsletter.

7.1.3. Target Audience
The Town's education program is designed to target various groups within
the MS4 area. Restaurant and industrial groups will be targeted to inform
them of the impacts of grease and hazardous materials entering the storm
drain system. Homeowners and landscaping companies will be informed
of the proper use and handling of yard wastes and fertilizer application
rates to minimize nutrient loading in the receiving streams. Homeowners
will also be informed of Town programs for recycling. Programs will also
be aimed at teaching school children in the town the importance of water
conservation and protection of our natural water systems from litter and
pollutants. Contractors and developers in the area will be targeted to
educate on the effects of increased sediment loads on the receiving
streams.
7.1.4. Target Pollutant Sources
Sediment and nutrients have been identified as the main pollutants of
concern in the receiving waters of the Town of Morrisville MS4. These
pollutants affect the ability of the receiving stream to support biological
communities.
7.1.5. Outreach Program
The Town uses an annual newsletter and the Town's website to educate
residents about water conservation, recycling opportunities, household
hazardous waste disposal, and the correct use of fertilizers. The Town
frequently involves Home Owners Associations in distributing
information to residents through neighborhood newsletters.
Commercial and industrial communities will be educated on impact of
grease and hazardous materials such as oil and fuel, on the storinwater
system. These communities will be reached through the current dialogue
that is in place through the Town's development process.
Handouts will also be made available for distribution at the various Town
festivals and events aimed at teaching the Town's school children.
Through these activities, the Town hopes to reach all of its residents and
promote local involvement in the stornmvater program.
7.1.6. Decision Process
The public outreach program for the Town of Morrisville is designed to
focus on the target audiences. The program is designed to get the
information to those audiences in the most effective and efficient way and
to specifically address the main pollutant sources of concern for the MS4
area.
9

The Town has a large residential and commercial makeup, which are the
primary focuses of the outreach program. Through the use of billing
inserts, newsletters and the Town's website, a large percentage of the
population will have access to information on stormwater. These same
sources of information promote the use of compost and stress the
importance of water conservation.
The Town Engineer has primary responsibility for protection of water
quality in the Town of Morrisville, including riparian buffer compliance,
supervision of the delegated Sedimentation and Erosion Control Program,
preparation of yearly newsletters articles and stormwater web information,
water resources management, and public education for businesses and
schools in the area.
Sinai authority for all programs rests with the Town Board of
Commissioners.
7.1.7. Evaluation
The success of this minimum measure will be evaluated in a number of'
ways based on the specific 13MP. The distribution of-stormwater
information will be evaluated on the feedback that we receive from the
newsletter and the website and on the number of brochures delivered to
residents.
Information on composting and water conservation is maintained on the
Town's website as well. This 13MP can be evaluated on the f-cedback
received from the water conservation information that is posted on the
website. The website is where we give tips on conservation, news about
water restrictions, and information on how to purchase compost bins and
rain barrels.
All new storm drain covers and manholes will be embossed with
information signifying that water that enters the structure drains to the
waterways. Having this information embossed directly on the drain
structure will serve to notify the public of the fate of the water entering the
drain. The success of this measure can be shown with new standards and
details.
A business outreach program will be developed to inform businesses about
illicit discharges, improper waste disposal, and sources of nutrient and
fecal coliform loading. This f3MP will be evaluated on the number of
businesses included in the program and that have implemented an in-IloUse
policy for the protection of water quality including the installation and
proper maintenance of grease traps and oil water separators.
m

7.2. Public Involvement and Participation
7.2.1. Objectives for Public Involvement and Participation
7.2.1.1. Provide opportunities for the public, including major economic
and ethnic groups, to participate in program development and
implementation.
7.2.1.2. Comply with applicable state and local public notice
requirements.

7.2.2. BMPs for Public Involvement and Participation
B14IP
Measurable Goals
YR
YR
YR
YR
YR
Action
1
2
3
4
5
(a)
Administer a Public Involvement
Develop and implement a Public Involvement and
X
X
X
X
X
Develop a local public involvement
Program
Participation Program.
program to address stormwater water
quality issues.
(b)
Allow the public an opportunity to
Conduct at least one public meeting to allow the public
X
The stormwater ordinance was
review and comment on the
an opportunity to review and comment on the
adopted through public forurn as pan
Stormwater Plan
Stornvater Plan
of the Town's Board of
Commissioners meetings. The
stormwater plan and ordinance
required Board of Commissioner
review and approval and was
available for public review and
comment during the process-
(c)
Organize a volunteer community
Organize and implement a volunteer stormwater
X
X
X
X
Upon the establishment of the
involvement program
related program designed to promote ongoing citizen
stormwater public involvement
participation_
program, develop a stormwater
volunteer program to promote
ongoing citizen participation, i.e.
stream cleanups and storm drain
identification program.
(d)
Establish a Citizens' Group(s)
Develop a citizens' group(s) for input on stormwater
X
X
X
X
X
Establish new citizen group for input
issues and the stormwater program.
on stormwater water quality issues.
12

7.2.3. Target Audience
The Town's public involvement program will be designed to target
various economic and ethnic groups within the MS4 area. Homeowners
and Business owners will be encouraged to get involved in Town
programs for stormwater protection.
7.2.4. Participation Program
The Town will provide activities for public participation in stormwater
management and opportunities for public involvement/review of the
stormwater management program, including the following:
7.2.4.1. Create a Solid Waste Advisory Committee
The committee shall advise the Town Board of Commissioners
on matters concerning the disposal of solid waste. The
committee duties will include the following:
o Monitoring curbside residential solid waste collection,
a Planning/Staffing exhibits at local events to promote
recycling;
o Investigate, implement, or assist other recycling
opportunities in the community;
o Create education articles to be published in local news
media and the Town's newsletter;
o Monitor Wake County recycling efforts and education in
the local schools and recommend supplemental efforts that
serve to improve the Town's recycling efforts;
o Recommend policies for disposal of solid waste;
o Review and comment on budget items related to solid
waste collection and disposal.
7.2.4.2. Involvement/Public Opinion
• The Town adopted its stormwater ordinance as a component of
the Design and Construction Ordinance on November 27,
2007. The adoption process included a public hearing process
as part of the Town's Board of Commissioners meetings. The
public hearing process for the new ordinances allowed a proper
forum for the public to comment on the development of the
program.
• The Town will also facilitate public meetings as needed on
specific stormwater-related topics.
7.2.4.3. Activities/Public Participation
• NC DENR's Stream Watch — The Town will promote the
existing DENR program through mailings, pamphlets, and
through the Town's website.
httpahvww.ee.enr.state.nc.usl�uidelstreai�watch.htm
13

• NC DOT'S Beautification Projects — The Town will promote
the existing DOT programs (including Adopt -a -Highway,
Litter Sweep, and others) through mailing's pamphlets, and
through the Town's website.
htt �ahvw��.doh.dot.state.nc.us/o aerations/d p chic) en-/roadsi
de/13cautif ication/
• The Town promotes water quality annually by actively
participating in Growth Management Task Force Group.
• The Town is a partner in the Center of the Region annual
initiative promoting environmental impacts, green space
planning, and development.
• Community contact inf-o. — The Town's website will encourage
citizens to contact the Town via the Town's phone number or
an email address to report stormwater related problems/issues.
7.2.5. Decision Process
The public involvement/participation program for the Town of Morrisville
was designed to focus on the target audiences and encourage involvement
and participation in the stormwater management program.
The purpose of the public involvement/participation program is to involve
community groups and individuals in activities that promote awareness of
the importance of protection of stormwater. The primary focus of this
program is to provide information to the public and encourage
participation and involvement through public meetings, newsletters and
the Town's website, Final authority for all programs rests with the Town
Board of Commissioners.
Tile Torn Engineer will have primary responsibility for protection of
water quality in the Town of Morrisville, including the preparation of
newsletters and press releases, maintenance of the stormwater web
information, and public education for businesses and schools in the area.
7.2.6. Evaluation
The success of the community stream clean sweeps will be evaluated on
the number of clean sweep events held, the number of participants
involved, and the number of stream miles cleaned. The quantity of waste
collected as a result of the cleanup efforts will provide a means to gauge
the effectiveness of the overall stormwater program. As educational efforts
and community participation expand the amounts of waste collected from
the clean sweep events will hopefully decrease. The success of the
community contact information will be evaluated by the amount of calls or
emails received from the community.
14

7.3. Illicit Discharge Detection and Elimination
7.3.1. Objectives for Illicit Discharge Detection and Elimination
7.3.1.1. Detect and eliminate illicit discharges, including spills and
illegal dumping.
7.3.1.2. Address significant contributors of pollutants to the MS4. The
permitee may require specific controls for a category of
discharges, or prohibit that discharge completely, if one or
more of these categories of sources are identified as a
significant contributor of pollutants to the MS4.
7.3.1.3. Implement appropriate enforcement procedures and actions.
7.3.1.4. Develop a storm sewer system map showing all outfalls and
waters receiving discharges.
7.3.1.5. Inform employees, businesses, and the general public of
hazards associated with illegal discharges and improper
disposal of waste.
a

7.3.2. BMPs for Illicit Discharge Detection and Elimination
BNIP
Measurable Goals
YR
YR
YR
YR
YR
Action
l
2
3
4
5
(a)
Develop/ Implement Illicit
Develop and implement an Illicit Discharge Detection
X
X
X
X
X
The Town developed and adopted an
Discharge Detection and
and Elimination Program. Include provisions for
ordinance to prohibit illicit
Elimination Program
program assessment and evaluation.
discharges to the storm sewer system.
The illicit discharge program is
included in the Town's Design in
Construction Ordinance which was
adopted November 26, 2007.
(b)
Establish and maintain appropriate
Establish and maintain adequate legal authorities to
X
X
X
Evaluate current staffing capacity
legal authorities
prohibit illicit discharges and enforce the approved
and determine if additional staffing
Illicit Discharge Detection and Elimination Program.
necessary to manage and enforce the
proposed illicit discharge program.
(c)
Develop a Storm Sewer System
Identify outfall locations and map stormwater drainage
X
X
X
X
GIS mapping of the existing
Base Map
system components. At a minimum, mapping
stormwater drainage system as of
components includes outfalls, drainage areas, and
2005 has been completed. This GIS
receiving streams.
inventory will be periodically
updated using digital "as -built" files
for new construction. Corresponding
drainage areas have been delineated
and receiving streams identified. The
stormwater inventory base map and
drainage area map will be posted to
the Town's website by the end of
December 2008.
(d)
Implement illicit discharge
Implement an inspection program to detect dry weather
X
X
X
Upon completion of the storm sewer
detection procedures
flows at system outfalls. Establish procedures for
base map, develop a stormwater
tracing the sources of illicit discharges and for
outfall inspection program for the
removing the sources. Develop procedures for
Town to detect dry weather flows at
identification of priority areas likely to have illicit
system outfalls.
discharges. Continue to identify, locate, and update
map of drainage system components on a priority basis
per approved Illicit Discharge Program.
V

BMP
Measurable Goals
YR
YR
YR
Y1Z
YR
Action
1
2
3
4
5
(e)
Conduct employee cross -training
Conduct training for municipal staff on detecting and
X
X
X
X
X
Provide educational materials to staff
reporting illicit discharges.
regarding how to recognize illicit
connections and discharges, and who
to contact concerning them.
(f)
Provide public education
inform public employees, businesses, and general
X
X
X
X
X
Include educational material
public of hazards associated with illegal discharges and
concerning the hazards associated
improper disposal of waste.
with illegal stormwater discharges
and improper disposal of waste
within "The Morrisville Connection",
the Town's official monthly
newsletter.
(g)
Establish a public reporting
Establish and publicize a reporting mechanism for the
X
X
X
X
X
Develop a public telephone "hotline"
mechanism
public to report illicit discharges.
service to enable the reporting of
illicit stormwater discharges to the
appropriate Town staff.
17

7.3.3. Storm Sewer System Map
The Town has completed mapping of the stormwatcr system as of 2005.
The 2005 GIS data inventory in is the process of being updated using
digital "as -built" data required as part of the Town's construction review
and approval process. The locations of all storm sewer drains, manholes,
curb inlets, Culverts and structural BMPs will be included in the updated
inventory. The overall inventory will undergo periodic updates as new
digital "as -built" drawings are received. Where necessary to supplement
or validate existing inventory data, Morrisville personnel will review
existing maps of a given area and will then gather coordinates on the
various features using Global Positioning Satellite (GPS) instrumentation.
This digital information will then be downloaded into GPS-compatible
program to connect the features and develop a map of the system.
In addition to the stormwater inventory, drainage area delineations were
performed using GIS tools and methodologies and the North Carolina
Floodplain Mapping Program 50-ft hydro -corrected digital elevation
models (DEMs) as a topographic source. Drainage area maps will be
updated and validated using digital "as -built" inf-ormation supplemented
with field verification.
A storm sewer system base map using the existing inventory and drainage
area maps based on the GIS analysis will be posted to the Town's website
by the end of December 2008.
7.3.4. Regulatory Mechanism
The Town has.developed and adopted an ordinance to prohibit illicit
discharges to the storm sewer system. The illicit discharge program is
included in the Town's Design in Construction Ordinance which was
adopted November 26, 2007.
7.3.5. Enforcement
Enforcement rules, procedures and penalties for illicit discharges and
connections to the Town's storm sewer system are referenced in the
Design and Construction Ordinance and specified in Chapter 18 of the
Town of Morrisville Code of Ordinances. Administrative remedies include
the issuance of written notice of violation stating the nature of the
violation and providing a time Frame for compliance with the ordinance,
and administrative orders to stop all activities contributing to the violation.
Civil penalties for noncompliance may also be assessed up to $10,000 per
day per violation based on the degree and extent of harm to natural
resources, the duration and gravity of the violation, the cost of rectifying
the damage, the amount of money saved by noncompliance, whether the
In

violation was intentionally committed, the costs of enforcement to the
Town, and the prior record of the violator.
7.3.6. Detection and Elimination
7.3.6.1. Mapping from the Town of Morrisville stormwater inventory
and the Town of Cary sanitary sewer inventory will be
compared to locate priority areas. Priority areas will be
identified by locating areas where sanitary sewer service does
not exist, or where there are older sanitary sewer lines. Areas
where the storm sewer system collects runoff from industrial
areas will also be considered as priority areas for potential
contaminated runoff or illegal dumping. Dry weather
inspections of stormwater outfalls will be conducted to locate
potential non-stormwater flovvs.
7.3.6.2. After potential non-stormwater discharges have been identified
from the dry weather inspections, potential illicit sources will
be identified. A systematic field investigation will then be
conducted to try to identify the actual source of the illicit
discharge. The investigation of the potential sources may entail
site inspections, chemical analysis, site specific flow
monitoring, and dye or smoke testing.
7.3.6.3. Once the source of an illicit discharge has been identified,
enforcement action will be undertaken to have the source
removed. The enforcement action process is detailed in the
illicit discharge portion of Chapter 18 of the Code of
Ordinances. Records of all enforcement actions will be
maintained in the files. These records will be used in
conjunction with the storm sewer system map to track trends in
non-compliance and to identify priority areas for investigation
and increased educational ef-forts.
7.3.6.4. The illicit discharge detection and elimination plan will be
evaluated based on the number of discharges and quantities of
flow eliminated and the number of dye or smoke tests
conducted.
7.3.7. Illicit Non-Stormwater Discharges and Connections
No liquid, solid, gas, or other substance, other than stormwater are
allowed to be discharge to the Town's stormwater system, with the
exception of the items specified as allowable in Section 7.3.8 of this
report. Illicit connections specifically prohibited in the Town's ordinance
include, but are not limited to, the following items:
• Floor drains
19

• Waste water from washing machines or sanitary sewers Rising ground
waters
• Wash water from commercial vehicle washing or steam cleaning
• Waste water from septic systems
7.3.8. Allowable Non-Stormwater Discharges
The following list identifies sources of non-stormwater discharges that
will be allowable:
• Waterline Flushing
• Landscape irrigation
• Diverted stream flows
• Rising ground waters
• Uncontaminated ground water infiltration (as defined at 40 CFR
35.2005(20)}
• Uncontaminated pumped ground water
• Discharges from potable water sources
• Foundation drains
• Air conditioning condensation
• Irrigation water
• Springs
• Water from crawl space pumps
• Footing drains
• Lawn watering
• Individual residential car washing
• Flows from riparian habitats and wetlands
• Dechlorinated swimming pool discharges
• Street wash water; and
• Other non-stormwater discharges for which a valid NPDES discharge
permit has been approved and issued by the State of North Carolina,
and provided that any such discharges to the municipal separate storm
sewer system shall be authorized by the Town of Morrisville.
7.3.9. Outreach
In an effort to aid with the prevention and removal of illegal discharges
the Town will contact businesses that, by nature of their operation, have
the potential to be a likely source of illicit discharges.
The Town's wcbsite will have contact information for the public to report
illicit discharges to the Town. I f the illegal discharge is perceived to be an
emergency the caller will be instructed to call the Public Safety emergency
number.
20

7.3.10. Decision Process
The completion of storm sewer system map will allow for comparison
with sanitary sewer maps to identify priority areas of potential illicit
discharges. This map will also document all outfalls in the system where
low flow monitoring can be performed. The mapping operations for the
Town are under the direct supervision of the Town Engineer.
The education of the public on the identification and proper disposal of
household hazardous wastes (HHW) as well as the hazards associated with
improper disposal is an important part of the illicit discharge program. The
educational information will be posted on the Town's website and will be
distributed in newsletters and billing inserts. Wake County currently offers
HHW collection on the first Saturday of each month at the North Wake
Facility and third Saturday of each month at the South Wake Facility. This
service is free to residents of Wake County.
IZttp://Nvww.wake.,ov.ccni3/countylrecvclin�,,/IioLISCIIOIdS/lloushazwaste.htm
Narlh Wake Landfill & Recycling Center
10,200 Durant Road
Raleigh, NC 27615
South 1,Vake Multi- Recycling Facility
6000 Old Smithfield Road
Apex, NC 27502
Final authority for all programs rests with the Town Board of'
Commissioners.
7.3.11. Evaluation
The success of the illicit discharge detection and elimination program will
be evaluated on the success of the individual BMPs.
Successful completion of the storm sewer system map is key to the
success of the illicit discharge detection and elimination program. This
map will identify all stonnwater structures and lines for the entire MS4.
The map can then be compared to the sanitary sewer map and to zoning
maps to identify possible septic tank discharges or illegal connections as
well as areas of potential discharge from industrial operations.
The household hazardous waste (HHW) program BMP is already in effect
with a permanent means of disposal of HHW through Wake County at the
South Wake Convenience Center location in Apex. Wake County accepts
HHW from County residents Ott no charge on the third Saturday of each
month, The education of the public on the identification and proper
disposal of HHW will be the key to the success of this BMP. Information
21

will be collected from Wake County on the number of participants From
Morrisville. Through a continuous education program, the number of
participants will hopefully increase.
Upon completion of the storm sewer system map and the detection and
elimination of illicit discharges will be a priority for the overall
stormwater management program. The success of this BMP will be
measured by the number of illicit connections that are removed from the
system, the number of field tests performed as a result of (try weather
inspections, and the number of reports of illicit discharges incidents
received. As the program succeeds, the. number of incident reports and the
number of illicit connections should decline.
22

7.4. Construction Site Runoff Controls
7.4.1. Objectives for Construction Site Runoff Controls
7.4.1.1. Reduce pollutants in stormwater runoff from construction
activities disturbing one or more acres of land surface and
those activities less than one acre that are part of a larger
common plan of development.
7.4.1.2. Provide procedures for public input, sanctions to ensure
compliance, requirements for construction site operators to
implement appropriate erosion and sediment control practices,
review of site plans which incorporates consideration of
potential water quality impacts, and procedures for site
inspection and enforcement of control measures.
7.4.1.3. Establish requirements for construction site operators to control
waste such as discarded building materials, concrete truck
washout, chemicals, litter, and sanitary waste at the
construction site that may cause adverse impacts to water
quality.
23

7.4.2. BMPs for Construction Site Runoff Controls*
13MP
Measurable Goals
YR
YR
YR
YR
YR
Action
1
2
3
-t
5
(a)
Implement a program and establish
Develop a regulatory mechanism and implement a
X
X
X
X
X
Relies on Wake County to comply with
a regulatory mechanism for erosion
program requiring erosion and sediment controls at
this minimum measure.
and sediment control.
construction sites and providing for sanctions to ensure
compliance. Instead of originating a new program, the
permittee may elect to comply by relying on the
NCDENR Division of Land Resources (DLR) Erosion
and Sediment Control Program, either as administered
by the Sedimentation Control Commission (SCC) to
another entity with appropriate jurisdiction, including
the permittee. The permitee may rely on the DLR
program only to the extent that the program satisfies all
the following BMPs.
(b)
Develop requirements on
Require construction site operators to implement
X
X
X
X
X
Relies on wake County to comply with
construction site operators
erosion and sediment control BMPs and to control
this minimum measure.
construction site wastes that may cause adverse water
quality impacts.
(c)
Provide educational and training
New materials may be developed by the permittee, or
X
X
X
X
X
Relies on Wake Countv to comply with
materials for construction site
the permittee may use materials adopted from other
this minimum measure.
operators
programs and adapted to the permittee's construction
runoff controls program.
(d)
Institute plan reviews
Review construction plans and establish procedures
X
X
X
X
X
Relies on Wake County to comply with
that incorporate water quality considerations in
this minimum measure.
construction site plan reviews.
(e)
Establish public information
Establish procedures for receipt and consideration of
X
X
X
X
X
Relies on wake County to comply with
procedures
erosion and sedimentation information submitted by
this minimum measure.
the public. Publicize the procedures and contact
inforniation. The procedures must lead directly to a
site inspection or other timely follow-up action.
24

BA1P
Measurable Goals
YR
1
YR
2
YR
3
YR
4
YR
5
Action
(f)
Establish inspection and
Establish procedures for site inspection and
X
X
X
X
X
Relies on wake County to comply with
enforcement procedures
enforcement of control measure requirements. The
this minimum measure.
procedures should include prioritizing areas of
inspections based on local criteria.
The Town of Morrisville relies on Wake County to comply with this minimum measure. The preceding table is
modified by the following:
• The Town of Morrisville shall conduct random inspections of local land disturbing activities that have a sediment
and erosion permit, issued by Wake County Environmental Services, to see if the site is in compliance.
• The Town of Morrisville will monitor the Wake County Environmental Services program for effectiveness in the
perinittee jurisdiction.
• Potential problems at construction sites with sediment and erosion control permits will be reported to Wake County
Environmental Services.
• follow-up action by Wake County Environmental Services will be monitored by the Town of Morrisville.
• The Town of Morrisville will maintain a record of findings and follow-up procedures_
The Town of Morrisville shall provide and promote a means for the public to notify the appropriate authorities of
observed erosion and sedimentation problems.
25

7.5. Post -Construction Site Runoff Controls
7.5.1. Objectives for Post -Construction Site Runoff Controls
7.5.1.1. Manage stormwater runoff from new development/
redevelopment that drains to the MS4 and disturbs an acre or
more of land surface, including projects less than an acre that
are part of a larger common plan of development or sale.
7.5.1.2. Provide mechanism to require long-term operation and
maintenance of BMPs.
7.5.1.3. Ensure controls are in place to minimize water quality impacts.
M

7.5.2. BN1Ps for Post -Construction Site Runoff Controls
BMP
Measurable Goals
YR
YR
YR
YIZ
YR
Action
l
2
3
4
5
(a)
Establish a post -construction
Develop and adopt by ordinance (or similar regulatory
X
X
X
X
X
The Town adopted and approved a
stormwater management program
mechanism) a program to address storrriwatcr runoff
post -construction stormwater
IrOrn new development and redevelopment. implement
management ordinance, included in
and enforce the program within 24 months of the
the Design and Construction
permit issue date. The ordinance must be reviewed and
Ordinance, on November 26, 2007.
approved by the Director prior to implementation.
The Town will enforce and
Ensure that controls are in place to prevent or minimize
implement the requirments of the
water quality impacts.
ordiance for post -construction
stormwater mana cement.
(b)
Establish strategies which include
Develop strategies that include a combination of
X
X
X
X
X
Allow the use of only stormwater
BMPs appropriate for the MS4
structural and/or non-structural BMPs. Implement
quality BMPs designed in accordance
them within 24 months of the permit issue date.
with the Stonnwater Best
Provide a mechanism to require long-term operation
Management Practices Manual,
and maintenance of structural BMPs. Require annual
prepared by NCDENR. The Town
inspection reports of permitted structural BMPs
requires operation and maintenance
performed by a qualified professional.
(O&M) manuals and is implementing
long term O&M by legal
documentation and the posting of
security bonds.
(c)
Establish a program to control the
Control the sources of fecal coliform to the maximum
X
X
X
X
X
Provide plastic bags for pet waste in
sources of fecal coliform to the
extent practicable. Develop an oversight program to
an area of town heavily frequented
maximum extent practicable
ensure proper operation and maintenance of on -site
by dog walkers.
wastewater treatment systems for domestic wastewater
Develop a "Don't let your pet
Implement program within 24 months of the permit
pollute" brochure for public
issue date. Municipalities must coordinate this
distribution.
program with the county health department.
Develop a septic base map that
would show lots within the Town's
jurisdiction being served by a private
septic systems. Coordinating with
NC Department of Environmental
Elealth and Wake County to provide
a method of conducting regular
inspections of the existing systems.
27

BMP
I%Ieasurabic Coals
YR
1
YR
2
YR
3
YR
4
YR
5
Action
(d)
Establish trout waters (Tr)
Develop, adopt, and implement an ordinance (or
There are no established trout waters
protection measures (for programs
similar regulatory mechanism) to ensure that the best
within the Town's jurisdiction, and ,
with development or
management practices selected do not result in a
that trout water protection shall not
redevelopment draining to Tr
sustained increase in the receiving water temperature.
be established.
waters)
(e)
Establish nutrient sensitive waters
Develop, adopt, and implement an ordinance (or
X
X
X
X
X
Enforce and implement the Neuse
(NSW) protection measures (for
similar regulatory mechanism) to ensure that the best
River Basin performance standards
programs with development or
management practice for reducing nutrient loading is
throughout the Town's jurisdiction.
redevelopment draining to NSW
selected. In areas where the Environmental
waters)
Management Commission has approved a Nutrient
Sensitive Water Urban Stormwater Management
Program, the provisions of that program fulfill the
nutrient loading reduction requirement. Develop and
include a nutrient application (fertilizer and organic
nutrients) management program in the Post -
Construction Stormwater Management Program
28

7.5.3. Evaluation of Post -Construction Site Runoff Controls
7.5.3.1. Those areas within the jurisdictional area of the Town of
Morrisville that are already subject to the existing State's Neuse
River Basin Nutrient Sensitive Waters Management Strategy
stornwater program are deemed compliant with the post -
construction stormwater management model practices identified
in (7.5.3.2) below.
7.5.3.2. Model Practices. For those areas within the jurisdictional area of
the Town of Morrisville that are not subject to the post -
construction stormwater management provisions of another
existing state stormwater management program, the Post -
construction Stormwater Management Program must equal or
exceed the stormwater management and water duality protection
provided by the following model practices.
7.5.3.3. The Town of Morrisville Stormwater Management follows the
rules and regulations set by the Neuse River Basin and/or the
Cape Fear Basin depending on which basin the project may fall
in. The Neuse River Basin regulations have a 30' zone 1 riparian
buffer in which no disturbance is allowed and an additional 20'
zone 2 riparian buffer in which only grading is allowed. The
Cape Fear Basin regulations have a 50' undisturbed riparian
buffer.
7.5.3.4. Low/Fligh Density Projects
The Town of Morrisville does not have separate regulations in
place for Low Density and High Density Projects. All projects
have a maximum impervious surface of 65% where no water -
quality BMP is required. A project may have a maximum 01'80%
impervious surface if a BMP is put in place that will bring down
the pollutants to the same level as a 65% impervious
development. The Town requires all post -development runoff to
be no greater than pre -development runoff.
7.5.3.5. The Town of Morrisville has developed an operation and
maintenance component of the Post -Construction Stormwater
Management program that ensures the adequate long-term
operation of the structural BMP's required by the program. The
program includes a requirement that the owner of a permitted
structural BMP submit annually to the local program a
maintenance inspection report on each structural BMP. A
qualified professional must conduct the inspection.
29

7.5.3.6. Requirements for Controlling Sources of Fecal Coliform (Septic
Systems): The Wake County Environmental Services
Department has jurisdiction over most typical on -site wastewater
systems, or septic systems, in the Town's planning area and
surrounding rural areas. Some large non -typical septic systems or
other on -site wastewater systems may be referred to the NC
Department of hnvironmental Health. The County currently
approves plans and inspects construction of newly installed septic
systems. The County also assists owners of foiling septic systems
by evaluating the system and recommending short-term or long-
term solutions. The Town does not anticipate any change in
Wake County's jurisdiction over septic systems and will continue
to rely on the County and/or State Departments to provide these
services that aid in controlling fecal coliform sources.
7.5.3.7. The Town of Morrisville MS4 does not drain to SA waters.
7.5.3.8. The Town of Morrisville MS4 does not drain to Tr waters.
7.5.3.9. All Stormwater from the Town of Morrisville MS4 that drains to
the Neusc River Basin, drains to Nutrient Sensitive Waters
(N S W ).
7.5.3.10. The Town's follows Neuse River and Cape Fear River Basirl
regulations for disturbance along riparian buffers.
7.5.3.11. As discussed under the Public Education and Outreach section of
this report, the Town will promote proper application, handling,
and disposal of fertilizer to reduce nutrient loading in runoff.
Information will be distributed in newsletters, billing inserts,
brochures and on the Town's website.
7.5.3.12. The 'Town requires all post -development runoff to be no greater
than pre -development runoff.
7.5.3.13. A comprehensive Watershed Protection Program is not
mandatory as set forth by NCDENR for NPDES Phase I I
requirements. The Town does not anticipate implementing such a
program at this time. However, in Wake County's NPDES Phase
It Program Report, comprehensive watershed protection is
mentioned as a viable planning option on the countywide level,
with participation from local governments (including
Morrisville). Upon Wake County's adoption of any watershed
protection measures, the Town will consider the possibility of
adopting Wake County's regulations or imposing more stringent
watershed protection requirements on its own. Should the Town
30

decide to implement a comprehensive Watershed Protection
Program in the future (either by adopting Wake County's
program, or adopting its own program), the specific requirements
of such a program may substitute for some, or all of the
requirements for a Post -Construction Stormwater Program,
NCDENR has published a model ordinance related to this topic,
for reference, should the Town decide to pursue this option.
Comprehensive watershed protection is a broad topic that
Morrisville will assess in future years as its stormwater program
develops.
7.5.3.14. Non -Structural BMPs for the Post -Construction Stormwater
Program may include planning procedures or policies on a
community -wide basis or more specific site -based controls. The
Town of Morrisville currently attempts to protect sensitive areas
such as wetlands and riparian areas, maintain and/or increase
opens space, and minimize disturbance of soils and vegetation
through the following means:
7.5.3.15. Land Use Plans and Zoning neaps that direct development to
specific areas. The land use plans and zoning changes are
developed with public input and adopted by the Town of
Morrisville Board of Commissioners. The land use plans and
zoning maps provide guidance for the development community.
7.5.3.16. The Town does not have a policy or ordinance to encourage infill
development in high -density areas.
7.5.3.17. Existing Neuse River and Cape Fear River Riparian Buffer
Ordinances. Neuse River Riparian Buffer's requires a 50' buffer
for impervious surface. The inner 30' cannot be disturbed. The
Cape Fear River Riparian Buffer requires an undisturbed 50'
buffer. The Town will follow the respective regulation.
7.5.3.18. Minimize soil and vegetation loss through limiting runoff of'post-
development stormwater.
7.5.3.19. Structural BMPs
The Town of Morrisville anticipates allowing any structural
BMP's as may be recommended by agencies of the State of North
Carolina in order to accomplish specific stormwater goals. Some
of the specific goals described herein include runoff volume goals
restricting post -development runoff to pre -development levels, as
well as water quality goals for total suspended solids (TSS)
removal and total nitrogen (TN) removal in the Neuse River
Basin. Preliminary sources of information from NCDENR
31

regarding acceptable BMP's include, but are not limited to, NC
DWQ's Stornnvater Best Management Practices manual and NC
DWQ's Neu.se River Basin: Moclel Storntivater Program for
Nitrogen Control. NC DWQ, NC State University and the North
Carolina Cooperative Extension Service have all provided
training and conducted research on structural BMP use in North
Carolina. The Town intends to use these and other resources in
determining which BMP's may be in the best interest of its
storrnwater program.
A truncated list of structural BMP's that the Town is using in its
post -construction storrnwater runoff control program is as
follows:
• Wet Ponds
• Bioretention Areas
• Stormwater Wetlands
• Sand Filters
• Rain Harvesting
7.5.3.20. Regulatory Mechanism
The Town of Morrisville has developed a Post -Construction
Stormwater Runoff Control ordinance, which was adopted on
November 26, 2007. The post -construction ordinance is included
in the Town's Design and Construction Ordinance. The ordinance
focuses on regulating post -construction runoff from new
development and redevelopment for projects that meet the criteria
for Town permitting as described earlier. The ordinance
incorporates the NSW requirements from the Neuse River Basin
and applies them throughout the entirejurisdiction of the Town.
7.5.3.21. Operation and Maintenance
Operation and maintenance requirements and components of the
post -construction storrnwater management program are
incorporated within the Design and Construction Ordinance. The
operation and maintenance section of the ordinance ensures the
adequate long-term operation of the structural BMP's required by
the program. The Town has developed standard operation and
maintenance agreements which are signed and submitted by the
owner prior to the issue of any certificate of occupancies.
Additionally, surety and escrow accounts are established to cover
BMP annual O&M and any required repairs. The program also
includes a requirement that the owner of a newly permitted
structural BMP submit annually to the local program a
maintenance inspection report on each structural BMP. The
32

program will require that a qualified professional must conduct
the inspection.
7.5.3.22. Decision Process
The Town has developed a post -construction stormwater runoff
management program and ordinance that address the entire
program elements discussed in Section 7.5. The Town included
the post -construction stormwater program as a component of its
Design and Construction Ordinance in accordance with the new
model ordinance requirements to provide guidance to the
development community for new development and
redevelopment projects. The requirements of the ordinance and
design standards are enforced through the plan review process.
Once construction begins on a project subject to the post -
construction stormwater runoff management program, the
Inspection & Enforcement Program will ensure that the project is
built in compliance with the approved plans and all aspects of the
program. If a project includes one or more structural BMP's, it
will have to comply with provisions of the Town's Structural
BMP Operation & Maintenance (O&M) program. In addition,
the BMP O&M program will ensure that the structural BMP's
constructed within the Town's jurisdiction are inspected at least
annually and maintained in good working condition to provide
the most benefits to water quality.
As this decision process illustrates, the Town's post -construction
stormwater runoff management program addresses stormwater
runoff form new development and redevelopment projects
through all phases of development — planning, engineering
design, construction and long-term operation and maintenance.
7.5.3.23. Evaluation
The measure of success of the Post -Construction Stormwater
Program may be evaluated by assigning a tangible value to
certain "measurable goals". The overall goal of this program
after it is operational will be a measurable improvement in water
quality in local waterbodies as well as no increase in runoff, or
reduced runoff, after construction proposed projects.
Legal Authority
• Whether or not an ordinance was developed to address post -
construction runoff.
• The number of enforcement actions that occur as a result of
the new ordinance.
33

Design & Construction Standards
• Whether or not standards are amended to incorporate
requirements of the post construction stormwater management
program.
• I -low often the standards are evaluated as to the need for
revisions/updates.
Plan Review
• The number of plans reviewed annually for compliance with
the Post -Construction Stormwater Management Program.
Inspection & Enforcement Program
• The frequency of inspections.
• The number of problems that were identified and remedied.
• The number of enforcement actions taken.
Structural 13MP Operation & Maintenance (O&M)
• The frequency of maintenance activities.
• The change in the proportion of BMP's which are well
maintained as a result of maintenance.
• Whether or not an inventory of 13MP's requiring maintenance
was completed and is regularly updated.
Structural And Non -Structural BMP'S
• The number of each type of new structural BMP installed.
• The reduction in runofTquantity.
+ The acreage of land conserved as buffers and/or open space.
7.6. Pollution Prevention and Good Housekeeping for Municipal Operations
7.6.1. Objective for Pollution Prevention and Good Housekeeping for
Municipal Operations
7.6.1.1. Prevent or reduce stormwater pollution from municipal
operations.
34

7.6.2. BMPs for the Pollution Prevention 1 Good Housekeeping for Municipal Operations
BMP
Measurable Goals
YR
YR
YR
YR
YR
Action
1
2
3
4
5
(a)
Establish an operation and
Develop an operation and maintenance program that
X
X
X
X
X
Review all activities conducted by
maintenance program
has the ultimate goal of preventing or reducing
the Town and develop an inventory
pollutant runoff from municipal operations.
of the activities and potential
pollutant runoff.
(b)
Inspection and evaluation of
Develop an inventory of a][ facilities and operations
X
X
X
X
X
Conduct an inventory of Town
facilities, operations, the MS4
owned and operated by the permittee with the potential
owned facilities, operations,
system, and associated structural
for generating polluted stormwater runoff. Inspect .
stormwater system and BMPs.
BMPs
potential sources ol'polluted runoff, including the MS4
Develop an annual evaluation
system and associated BMPs. Evaluate the sources,
program and corresponding reporting
document deficiencies, plan corrective actions, and
system and documentation of
document the accomplishment of corrective actions.
corrective actions.
(c)
Conduct staff training
Conduct staff training specific for pollution prevention
X
X
X
Develop a training program to
and good housekeeping procedures.
educate all parks and recreation and
public works employees on clean
water issues and on workplace
responsibilities to reduce or eliminate
pollutants from storni water.
(d)
Review of municipality owned or
Conduct annual review of the industrial activities with
X
X
X
X
X
operated regulated industrial
a Phase I NPDES stormwater permit owned and
activities
operated by the permittee. Review the following
aspects: the Stormwater Pollution Prevention Plan
where one is required, the timeliness of any monitoring
reports required by the Phase I permit, and the results
of inspections and subsequent follow-up actions at the
facilities.
35

7.6.3. Affected Operations
The pollution prevention program will primarily be the
responsibility of the Public Works Department.
7.6.4. Training
Information on the affects of municipal operations on stormwater
quality will be included in employee newsletters and will be posted
in various departments throughout the municipal operations.
Training materials for the Public Works Department will focus on
storm sewer system cleaning operations and catch basin cleaning.
The Parks Recreation and Cultural Resources Department will
receive training on the proper application and disposal of fertilizer
for their maintenance of�greenway trails and parks. The General
Services Department handles the vehicle maintenance and storage
of materials for the other departments in the town. They will
receive training on the proper handling and disposal of used motor
oil.
7.6.5. Maintenance and Inspections
The Town recently purchased a vacuum truck which is utilized for
reported stoppages in storm drains. Yard waste pickup is
performed through contract with the Town's sanitation contractor.
7.6.6. Vehicular Operations
Municipal parking lots are swept routinely as part of the regularly
scheduled route by the Town's street sweeper to, reduce tloatables
in the storm sewer system. Vehicle maintenance operations occur
at the Public Works Compound. The 'Town has a contract with
Noble Oil for disposal and provision of the drums used for storing
used oil. New oil is kept in quarts in a storage cabinet in the
maintenance shop.
7.6.7. Waste Disposal
The vacuum truck will remove liquid from solids that are extracted
from the storm sewer system. The liquid is put back into the sewer
system, while solids including paper, plastic and other items are
treated as trash and disposed of as debris.
7.6.8. Flood Management Projects
The Town of Morrisville does not currently have any flood
management projects.
36

7.6.9. Existing Ordinances
Many of the Towns existing ordinances recognize the importance
of the protection of natural resources and water quality. One of the
particular purposes of the Town's planning and engineering
department is to prevent the adverse impacts of development on
natural resources and features and the availability of water, water
quality, and flood plains.
7.6.10. Other Evaluations
Evaluations of all of the municipal operations have been discussed
in this section of the report.
7.6.11. Decision Process
This program was developed to focus on removing pollutants
before they become a problem.
The pollution prevent program will mainly affect the Public Works
Department regular cleaning of the streets is intended to prevent
clogs and remove potential floatables from the system. The regular
collection of yard waste and municipal solid waste is intended to
reduce illegal dumping of these wastes.
Development of new stormwater standards and details will provide
better measures to help insure pollutants remaining out of the
Town's surface waters.
A good maintenance program for inspection and maintenance of
sewer lines prevents backups and potential releases of sewerage to
the MS4.
7.6.12. Evaluation
To evaluate the program, the number of streets cleaned each week
as well as the amount of yard waste collected from the roadside
will serve as measures of the success of this program.
When the storm sewer system map is complete, it will be used to
track the cleaning of catch basins and storm sewer lines that have
been cleaned. The map will also track the sanitary sewer lines that
have been flushed. The flushing of sewer lines will aid in
preventing sewer overflows and the release of sewerage to the
MS4.
While the Town's employees are already aware of the importance
of water quality, the training program will continue to reinforce the
fact with helpful information and tips on how to protect the
environment and improve water quality.
37

NPIDES Phase II
Stormwater Management Plan
Revised December 29, 2006
0,0
MO\
85? 1���
G��k '
Town of Morrisville
100 Town Hall Drive
P.O. Box 166
Morrisville, NC 27560
Prepared by:
�^�
Keith P. Billy,
Town of Morrisville
Engineering Department

42
,
/ �
- •�>
•
}(�i
.
\©
\ 2 ; nI
.
� - G}j

TABLE OF CONTENTS
1. STORM SEWER SYSTEM INFORMATION --------------------------------- 1
1.1.
Population Served----------------------------------------------------------- 1
1.2.
Growth Rate----------------------------------------------------------------- 1
1.3.
Jurisdictional and MS4 Service Areas ----------------------------------- 1
1.4.
MS4 Conveyance System -------------------------------------------------- 1
1.5.
Land Use Composition Estimates ---------------------------------------- 2
1.6.
Estimate Methodology----------------------------------------------------- 2
1.7.
TMDL Identification------------------------------------------------------- 2
2. RECEIVING STREAMS--------------------------------------------------------- 3
3. EXISTING WATER QUALITY PROGRAMS -------------------------------- 4
3.1. Local Programs-------------------------------------------------------------- 4
3.2. - State Programs-------------------------------------------------------------- 4
4. PERMITTING INFORMATION ------------------------------------------------ 5
4.1. Responsible Party Contact List ------------------------------------------- 5
4.2. Organizational Chart ------------------------------------------------------- 6
4.3. Signing Official------------------------------------------------------------- 7
4.4. Duly Authorized Representative ------------------------------------------ 7
5. Co -Permitting Information (if applicable) --------------------------------------
7
6. Reliance on Other Government Entity -------------------------------------------
7
7. STORMWATER MANAGEMENT PROGRAM -----------------------------
7
7.1. Public Education and Outreach --------------- ----------------------------
7
7.1.1.
Objectives for Public Education and Outreach ----------------
7
7.1.2.
BMPs for Public Education and Outreach ---------------------
8
7.1.3.
Target Audience ---------------------------------------------------
9
7.1.4,
Target Pollutant Sources -----------------------------------------
9
7.1.5.
Outreach Program -------------------------------------------------
9
7.1.6.
Decision Process --------------------------------------------------
9
7.1.7.
Evaluation----------------------------------------------------------
10
7.2. Public
Involvement and Participation ------------------------------------
11
7.2.1.
Objectives for Public Involvement and Participation --------
11
7.2.2.
BMPs for Public Involvement and Participation --------------
12
7.2.3.
Target Audience ---------------------------------------------------
13
7.2.4.
Participation Program ---------------------------------------------
13
7.2.5.
Decision Process --------------------------------------------------
14
7.2.6.
Evaluation----------------------------------------------------------
14
ii

7.3.
7.4.
7.5.
7.6.
TABLE OF CONTENTS
(Continued)
Illicit Discharge Detection and Elimination -----------------------------
15
7.3.1.
Objectives for Illicit Discharge Detection and Elimination ---
15
7.3.2.
BMPs for Illicit Discharge Detection and Elimination --------
16
7.3.3.
Storm Sewer System Map -----------------------------------------
18
7.3.4.
Regulatory Mechanism --------------------------------------------
18
7.3.5.
Enforcement---------------------------------------------------------
18
7.3.6.
Detection and Elimination -----------------------------------------
18
7.3.7.
Illicit Non -Storm Water Discharges ------------------------------
19
7.3.8.
Allowable Non -Storm Water Discharges ------------------------
19
7.3.9.
Outreach-------------------------------------------------------------
20
7.3.10. Decision Process ----------------------------------------------------
20
7.3.11.
Evaluation-----------------------------------------------------------
21
Construction Site Runoff Control -----------------------------------------
22
7.4.1.
Objectives for Construction Site Runoff Control ---------------
22
7.4.2.
BMPs for Construction Site Runoff Control --------------------
23
Post -Construction Site Runoff Controls ---------------------------------
25
7.5. 1.
Objectives for Post -Construction Site Runoff Controls -------
25
7.5.2.
BMPs for Post -Construction Site Runoff Controls ------------
26
7.5.3.
Evaluation of Post -Construction Site Runoff Controls --------
28
Pollution Prevention/Good Housekeeping for Municipal Operations
26
7.6.1.
Objective for Pollution Prevention/Good Housekeeping for
Municipal Operations ----------------------------------------------
33
7.6.2.
BMPs for the Pollution Prevention/Good Housekeeping for
Municipal Operations ----------------------------------------------
34
7.6.3.
Affected Operations ------------------------------------------------
35
7.6.4.
Training --------------------------------------------------------------
35
7.6.5.
Maintenance and Inspections -------------------------------------
35
7.6.6.
Vehicular Operations -----------------------------------------------
35
7.6.7.
Waste Disposal------------------------------------------------------
35
7.6.8.
Flood Management Projects ---------------------------------------
35
7.6.9.
Existing Ordinances ------------------------------------------------
36
7.6.10. Other Evaluations---------------------------------------------------
36
7.6.11.
Decision Process ----------------------------------------------------
36
7.6,12. Evaluation-----------------------------------------------------------
36
iii

1. Storm Sewer System Information
1.1. Population Served
Morrisville's population estimate has been adjusted to reflect the results of the
2003 Census. According to the 2003 Census, on June 30, 2003, the population of
Morrisville was 11,411. This was a 119.1 percent increase from the 2000 Census,
in which the population of Morrisville was 5,208.
1.2. Growth Rate
Averaging 2.195* persons per single-family dwelling and multi -family unit, it is
estimated that Morrisville yields a total population of 11,411 residents as of
December 31, 2003. The percentage of population increase from 2002 to 2003 is
15.8%. It is estimated that Morrisville added an average of 4.3 people per day
in 2003. This is up from the 2002 average of 3.9 people per day.
* The 2003 Census figure for persons per household in Morrisville was 2.195.
This figure includes both single-family and multi family households.
Town of Morrisville
Population
Percent Growth
1980 Census 11251
1990 Census. 111,022.
1307.2% (since 1980 Census)
2000 Census
15,208
409.6% (since 1990 Census)
2003 Est. (Planning De
111,411
1 19.1% (since 2000 Census)
1.3. Jurisdictional and MS4 Service Areas
Morrisville's corporate limits have increased to a total of fi.797 square miles and
our FTJ has a total acreage of 9.8 square miles.
1.4. MS4 Conveyance System
Most stormwater runoff begins in any given sub -basin as sheet flow (creating a
"non -point source" for surface water pollution). Ultimately however, this
stormwater runoff will become concentrated flow at the receiving stream. In the
Town's urban areas, stormwater runoff often becomes concentrated prior to the
receiving stream as it enters roadside ditches or pipe systems. As development
occurs in the Town of Morrisville, an increasing portion of runoff will flow across
man-made impervious surfaces and become concentrated in man-made pipes or
ditches prior to entering the receiving stream.
As with most modern storm sewer systems, the Town's MS4 is not combined
with any portion of its sanitary sewer system or other discharges *unless by an
illicit connections). Currently, the responsibility for the stormwater conveyances
and infrastructure rests solely with the owner, or entity, which possesses specific
rights to the system. For example, private drainage systems and drainage ditches
are maintained solely by property owners or other responsible parties (i.e.
homeowner's associations). And the numerous NCDOT streets, storm drainage,

and right-of-way that traverse throughout the Town's ETJ are maintained by the
NCDOT. However, the Town also assumes responsibility for the upkeep of storm
drainage pipes and roadside ditches that exist inside the Town -owned right-of-
way or drainage easements. Currently, the Town does not regulate, enforce, or
monitor stormwater issues associated with such infrastructure. One of the goals
of the Town's Stonnwater Program is to assign responsibility to private owners
and public agencies alike and hold all parties, including itself, accountable for
pollutants that enter the MS4 and for the quality of its surface waters in general.
1.5. Land Use Composition Estimate
Land Use
Acreage_
%
Commercial
764.84
14%
Exempt
308.07
6%
Farm
690.10
13%
Industrial
275.82
5%
Open Space
310.23
6%
Residential
1341.43
24%
Vacant
1789.43
32%
Sum:
100%
1.6. Estimate Methodology
The percentages were calculated based on GIS data using Wake County parcel
data dated March 2004.
In this estimate, the designation of open space included properties zoned as
agricultural, HOA open space, golf courses, vacant land and cemeteries. The
category listed as "Exempt" includes all churches and schools, much of which is
actually open space.
1.7. TMDL Identification
Section 303(d) of the Clean Water Act requires States to develop a list of waters
not meeting federal water quality standards and to correct the impaired waters by
developing a management strategy or a total maximum daily loading (TMDL).
Currently, only a portion of Crabtree Creek is the only impaired water in the
Town's jurisdiction according to North Carolina's 2002 Impaired Waters List.
Crabtree Creek is currently not supporting (NS) because of an impaired biological
classification. There are also indications of nutrient enrichment in this creek. The
Basinwide Plan recommends that local initiatives are needed to improve water
quality in Crabtree Creek and DWQ encourages development of a land use plan
and stormwater program that protects the water quality in Crabtree Creek, The
Town's NPDES Phase 11 Stormwater Management Program is in keeping with the
recommendations in the Basinwide Plan and should help improve water quality in
Crabtree Creek once implemented.
The State of North Carolina has also developed management strategies that set
forth specific target levels of nutrient loading for certain nutrient sensitive waters.
This is similar to, but not directly associated with, the federal requirements for
2

TMDL's. The Neuse River Basin Management Strategies set forth various
strategies (including Riparian Buffer Rules) with the goal of reducing nitrogen to
more acceptable levels.
2. Receiving Streams
Cape Fear River Basin
Recejving_Stream
Name.
IStream Segment.
�Water,Qjiatio
C{as'sification
;Use'Support Ratrng;
Water Quality Issues-
Kit Creek
16-41 1 17-2- 0.3f
C; NSW
NR
Nutrients *
Kit Creek
16-41-1-17-2- 0.7
WS-IV; NSW
NR
Nutrients *
NR = Not Rated in the current Basinwide Water Quality Plan.
* = Nutrients from nonpoint sources was identified as the biggest issue facing water quality throughout
the basin.
Neuse River Basin
Itecejvjng Stream
Stream Segment;
H �'at- -;
,„r�
Wafer Quality
�. h - .n
Classification;''Ratio.
Use Sjpporf ' �'�`
2 !d gin: a.
_.�.��t,�
Water Quauty,�
'la
Issues
Crabtree Creek
27-33-(1)
C NSW
Impaired
Poor Bioclassification;
Nutrients*
Crabtree Creek
27-33- 3.5
B; NSW
Supporting
Nutrients *
Cedar Creek
27-12-1-1- 1
C; NSW
NR
Nutrients *
Cedar Creek
27-12-1-1- 2
WS-IV; NSW
NR
Nutrients *
Stirrup Iron Creek
27-33-4-2
C; NSW
NR
Nutrients *
Turkey Creek
27-33-2
C; NSW
NR
Nutrients *
Indian Creek
NIA — from source
to Crabtree Creek
NR
Nutrients *
NR = Not Rated in the current Basinwide Water Quality Plan.
* = Nutrients from nonpoint sources was identified as the biggest issue facing water quality throughout
the basin.

3. Existiny, Water Quality Programs
3.1. Local Programs
The Town itself does not currently operate or provide staff for any program that
addresses water quality. However, in order to abide by current state regulations,
the Town defers all relevant water quality issues to the appropriate governing
state or county agency. For example, development projects that disturb more than
one acre of land are referred to Wake County for erosion control review, in
accordance with the NC Sedimentation Pollution Control Act of 1973. (Note:
Wake County operates their program under delegated authority from the NC
Division of Land Resources). Also, any projects with buffer related issues,
nutrient sensitive water issues, or general issues regarding water quality standards
are referred to NC Division of Water Quality, in accordance with 15A NCAC
213.0100 and .0200 (see next section).
3.2. State Programs
The State of North Carolina developed its own water quality standards and
classifications program pursuant to G.S. 143-214.1 and 15A NCAC 213.0100 and
.0200. The State's program began in the early 1950's and has been modified over
time to be consistent with the Federal Clean Water Act as well as its own basin -
wide approach to water quality.
One aspect of the state basin -wide studies, which applies directly to the Town's
surface waters, is the classification of certain waters as nutrient sensitive waters
(NSW supplemental classification). The Town's sub -basin in the Neuse River
basin have been assigned the supplemental classification of NSW, meaning,
generally, that there may be various nutrient reduction strategies imposed
depending on location within the basin. The Neuse River NSW Management
Strategy became effective in 1998 and established a goal to reduce the average
annual nitrogen loading, relative to background levels, by a minimum of 30% by
2004. This management strategy imposed basin -wide buffer regulations and
required larger and growing municipalities to implement NSW stormwater
programs to help meet the 30% nitrogen reduction goal. The Town of Morrisville
was not one of these mandated municipalities, although the Town does currently
defer all buffer related issues and water quality enforcement, in general, to the NC
Division of Water Quality. However, as required by these Phase 11 regulations
the Town will develop a program to address development that drains to NSW
waters (as a component of the Post -Construction Stormwater Program).
Therefore the reduction of nitrogen will be a goal for the Town on a local level.
Approximately b0% of the waters in the Cape Fear subbasin are impaired by
nonpoint source pollution and all the waters are affected by nonpoint sources.
Currently, none of these impaired waters are in the Town's ETJ. DENR, other
state agencies and environmental groups have programs and initiatives underway
to address water quality problems associated with nonpoint sources. DWQ will
notify local agencies of water quality concerns in this subbasin and work with
4

these various agencies to conduct further monitoring, as well as assist agency
personnel with locating sources of funding for water quality protection.
4. Permittinp, Information
4.1. Responsible Party Contact List
The following table lists each separate component program that will make up the
Town's overall Stormwater Program as well as the current 'individual and Job title
responsible for implementing it:
Component
'
11
Contact---,----,
Ph6fie
Fax ,
F
Pro
rograin
MResoonsible:.".
Pofibli,
Overall Administration
Town Manager
John Whitson
463-6150
481-2907
jwhitson(@ci.morrisville.nc.us
Public Education &
Keith Billy,
Outreach Program
Engineering Dept
Project Engineer
463 -6214
468-6011
kbillyaci. morrisvi Ile, nc,us
Public Involvement &
Engineering Dept
Keith Billy,
463-6214
468-6011
kbillygci.morrisvi lie. nc. us
Participation Program
Project Engineer
Illicit Discharge
Keith Billy
Detection & Elimination
Engineering Dept
project Engineer
463-6214
468-6011
kbilly Z�.ci.rnorrisville.ncxs
Propram
Construction Site Runoff
Wake County
Dave Parnell
856-7441
Program
Post -Construction
Stormwater Management
Engineering Dept
Keith Billy,
463-6214
468-6011
kbillvRci.morrisville.nc.us
Program
Project Engineer
Pollution Prevention/
Good Housekeeping
Engineering Dept
Keith Billy,
463-6214
468-6011
kbilly(a)ci. morriwi Ile. nc.us
(Municipal O&M)
Project Engineer
Proram
5

4.2. Organizational Chart
Town of Morrisville
NPDES Phase II Stormwater Permit

4.3. Signing Official
The principal executive officer for the Town is the Town Manager. Mr. John A.
Whitson currently holds this position and will be the signing official for the
NPDES Phase II Stormwater permit application.
4.4. Duly Authorized Representative
The Town of Morrisville is not delegating permit application responsibility to
someone other than the signing official.
5. Co-Permittinp- Information
The Town does not intend to share responsibilities with another municipality to fulfill its
NPDES Phase II permit obligations; therefore co -permitting information is not
applicable.
6. Reliance on Other Government Entity (to Satisfy One or More Permit Obligations)
The Town of Morrisville currently relies on Wake County Environmental Services to
administer the sedimentation and erosion control program within the Town's jurisdiction
in accordance with the North Carolina Sedimentation Pollution Control Act of 1973. The
Town plans on continuing this reliance as part of their NPDES Phase I1 Program to meet
the requirements of the Construction Site Storm Water Runoff Control minimum
measure. Legal agreements are not currently in place between the Town and Wake
County.
7. Stormwater Management Program Plan
7.1. Public Education and Outreach
7.1.1. Objectives for Public Education and Outreach
7.1.1.1. Distribute educational materials to the community.
71.1.2. Conduct public outreach activities.
7.1.1.3. Raise public awareness on the causes and impacts of
stormwater pollution.
7.1.1.4. Inform the public on steps they can take to reduce or prevent
stormwater pollution.

7.1.2. BMPs for Public Education and Outreach
BMP
�!,—Nl Measurable Goals
1m"
CYR`
-NWE-YR
e
Action
4
A'
(a)
Establish a Public Education and
Develop a public education program and implement
x
x
x
x
X
A local govermental partner in Clean
Outreach Program
within t2 months of the permit issue date. Incorporate
Water Education Partnership
outreach elements for significant minority and
(CWEP), The CWEP runs radio and
disadvantaged communities.
television campaigns, provides
printed brochures and also maintains
a website to communicate the
important fact that clean water is
vital for healthy ecosystems and a
high quality of life for area residents
within the Tar -Pamlico, Neuse, and
Cape Fear River Basins.
(b)
Informational Web Site
Develop and maintain internet web site. Post
x
x
x
X
Develop an informational web page
newsletters articles on stormwater, information on
to be added to the Town's web site,
water quality, stormwater projects and activities, and
posting newsletters articles on
ways to contact stormwater management program staff.
stormwater, information on water
quality, stormwater projects and
activities, and also provide links to
CWEP, Wake County Erosion and
Sediment Control, NC Division of
Water Quality, and the EPA.
(c)
Public education materials for
Develop general stormwater educational material to
x
x
x
x
X
Distribute annually relevant
schools, homeowners, and/or
appropriately target groups likely to have a significant
educational materials, provided by
businesses
stormwater impact. Instead of developing its own
CWEP, Wake County, NC Division
materials, the permittee may rely ontstate-supplied
of Water Quality, and the EPA, to
Public Education and Outreach materials, as available,
Cedar Fork and Morrisville
when implementing its own program-
Elementary Schools.
(d)
Public education material
Distribute written educational material to a broad
x
x
x
x
X
Display educational materials
dissemination
public audience. Possibilities include, but are not
provided by CWEP at the lobby of
limited to, utility mailouts and at special events.
Town Hall.
Inclusion of stormwater educational
material within "The Morrisville
Connection", the Town's official
monthly newsletter.

7.1.3. Target Audience
The Town's education program will be designed to target various groups
within the MS4 area. Restaurant and industrial groups will be targeted to
inform them of the impacts of grease and hazardous materials entering the
storm drain system. Homeowners and landscaping companies will be
informed of the proper use and handling of yard wastes and fertilizer
application rates to minimize nutrient loading in the receiving streams.
Homeowners will also be informed of Town programs for recycling.
Programs will also be aimed at teaching school children in the town the
importance of water conservation and protection of our natural water
systems from litter and pollutants. Contractors and developers in the area
will be targeted to educate on the effects of increased sediment loads on
the receiving streams.
7.1.4. Target Pollutant Sources
Sediment and nutrients have been identified as the main pollutants of
concern in the receiving waters of the Town of Morrisville MS4. These
pollutants affect the ability of the receiving stream to support biological
communities.
7.1.5. Outreach Program
The Town will use an annual newsletter and the Town's website to
educate residents about water conservation, recycling opportunities,
household hazardous waste disposal, and the correct use of fertilizers. The
Town frequently involves Home Owners Associations in distributing
information to residents through neighborhood newsletters.
Commercial and industrial communities will be educated on impact of
grease and hazardous materials such as oil and fuel, on the storm water
system. These communities will be reached through the current dialogue
that is in place through the Town's Development Process.
Handouts will also be made available for distribution at the various Town
Festivals and events aimed at teaching the Town's school children.
Through these activities, the Town hopes to reach all of its residents and
promote local involvement in the storm water program.
7.1.6. Decision Process
The public outreach program for the Town of Morrisville was designed to
focus on the target audiences. The program is designed to get the
information to those audiences in the most effective and efficient way and
to specifically address the main pollutant sources of concern for the MS4
area.

The Town has a large residential and commercial makeup and are the
primary focuses for the outreach program. Through the use of billing
inserts, newsletters and the Town's web site, a large percentage of the
population will have access to information on stormwater. These same
sources of information promote the use of compost and stress the
importance of water conservation.
The Utilities Engineer will have primary responsibility for protection of
water quality in the Town of Morrisville, including riparian buffer
compliance, supervision of the delegated Sedimentation and Erosion
Control Program, preparation of yearly newsletters articles and Utilities
web information, water resources management, and public education for
businesses and schools in the area.
Final authority for all programs rests with the Town Board of
Commissioners.
7.1.7. Evaluation
The success of this minimum measure will be evaluated in a number of
ways based on the specific BMP. The distribution of storm water
information will be evaluated on the feedback that we receive from the
newsletter and the web site and on the number of brochures delivered to
residents.
Information on composting and water conservation is maintained on the
Town's web site as well. This BMP can be evaluated on the feedback
received from the water conservation information that is posted on the
website. The website is where we give tips on conservation, news about
water restrictions, and information on how to purchase compost bins and
rain barrels.
All new storm drain covers and manholes will be embossed with
information signifying that water that enters the structure drains to the
waterways. Having this information embossed directly on the drain
structure will serve to notify the public of the fate of the water entering the
drain. The success of this measure can be shown with new standards and
details.
A business outreach program will be developed to inform businesses about
illicit discharges, improper waste disposal, and sources of nutrient and
fecal coliform loading. This BMP will be evaluated on the number of
businesses included in the program and that have implemented an in-house
policy for the protection of water quality including the installation and
Proper maintenance of grease traps and oil water separators.
10

7.2. Public Involvement and Participation
7.2.1. Objectives for Public Involvement and Participation
7.2.1.1. Provide opportunities for the public, including major economic
and ethnic groups, to participate in program development and
implementation.
7.2.1.2. Comply with applicable state and local public notice
requirements.
11

7.2.2. BMPs for Public Involvement and Participation
easui -Goals
'M ab e "J�
tYR,
!,Y
-YR'
YR,
YRr -
7�_ — .- - - A Ction
-,. - - -1 ,
M
z
5.-
eciL 1, -,:5
(a)
Administer a Public Involvement
Develop and implement a Public Involvement and
X
X
X
X
X
Develop a local public involvement
Program
Participation Program.
program to address stormwater water
quality issues.
(b)
Allow the public an opportunity to
Conduct at least one public mecting'to allow the public
X
The proposed stormwater ordinace will
review and comment on the
an opportunity to review and comment on the
be adopted through public forum as part
Stormwater Plan
Stormwater Plan
of the Town's Board of Commissioners
meetings. The stormwater plan and
ordinance require Board of
Commissioner review and approval and
will be available for public review and
comment.
(c)
Organize a volunteer community
Organize and implement a volunteer stormwater
X
X
X
X
Upon the establishment of the
involvement program
related program designed to promote ongoing citizen
stormwater public involvement
participation.
program, develop a stormwater
volunteer program to promote
ongoing citizen participation, i.e.
stream cleanups and storm drain
identification program.
(d)
Establish a Citizens' Group(s)
Develop a citizens' group(s) for input on stormwater
X
X
X
X
X
Renaming the Solid Waste and
issues and the stormwater program.
Recycling Committee and expanding
their role to include stormwater water
quality issues.
12

7.2.3. Target Audience
The Town's public involvement program will be designed to target
various economic and ethnic groups within the MS4 area. Homeowners
and Business owners will be encouraged to get involved in Town
programs for storm water protection.
7.2.4. Participation Program
The Town will provide activities for public participation in stormwater
management and opportunities for public involvement/review of the
stormwater management program, including the following:
7.2.4.1. Create a Solid Waste Advisory Committee
The committee shall advise the Town Board of Commissioners
on matters concerning the disposal of solid waste. The
committee duties will include the following:
o Monitoring curbside residential solid waste collection;
o Planning/Staffing exhibits at local events to promote
recycling;
o investigate, implement, or assist other recycling
opportunities in the community;
o Create education articles to be published in local news
media and the Town's newsletter;
o Monitor Wake County recycling efforts and education in
the local schools and recommend supplemental efforts that
serve to improve the Town's recycling efforts;
o Recommend policies for disposal of solid waste;
o Review and comment on budget items related to solid
waste collection and disposal.
7.2.4.2. Involvement/ Public Opinion
• Upon approval of its NPDES Phase II Stormwater permit by
the state, the Town will begin developing ordinances for the
Stormwater Program. The public hearing process for the new
ordinances will allow a proper forum for the public to comment
on the development of the program.
• The Town will also facilitate public meetings as needed on
specific stormwater-related topics.
7.2.4.3. Activities/Public Participation
• NC DENR's StreamWatch — The Town will promote the
existing DENR program through mailings, pamphlets, and
through the Town's website.
http Lwww.ce.enr.state.nc.us/�Tuide/streamwatch.htm
• NC DOT's Beautification Projects — The Town will promote
the existing DOT programs (including Adopt -a- Highway,
Litter Sweep, and others) through mailing's pamphlets, and
13

through the Town's website.
httpa/www.doh.dot.state.nc.us/operations/dp chief_en roadsi
de/Beautification/
• The Town promotes water quality annually by actively
participating in Growth Management Task Force Group.
• The Town is a partner in the Center of the Region annual
initiative promoting environmental impacts, green space
planning, and development.
• Community contact info. — The Town's website will encourage
citizens to contact the Town via the Town's phone number or
an email address to report stormwater related problems/issues.
7.2.5. Decision Process
The public involvement/participation program for the Town of Morrisville
was designed to focus on the target audiences and encourage involvement
and participation in the Storm Water Management Program.
The purpose of the public involvement/participation program is to involve
community groups and individuals in activities that promote awareness of
the importance of protection of storm water. The primary focus of this
program is to provide information to the public and encourage
participation and involvement through public meetings, newsletters and
the Town's web site. Final authority for all programs rests with the Town
Board of Commissioners.
The Utilities Engineer will have primary responsibility for protection of
water quality in the Town of Morrisville, including the preparation of
newsletters and press releases, maintenance of the Public Works and
Utilities web information, and public education for businesses and schools
in the area.
7.2.6. Evaluation
The success of the community stream clean sweeps will be evaluated on
the number of clean sweep events held, the number of participants
involved, and the number of stream miles cleaned. The quantity of waste
collected as a result of the cleanup efforts will provide a means to gauge
the effectiveness of the overall stormwater program. As educational efforts
and community participation expand the amounts of waste collected from
the clean sweep events will hopefully decrease. The success of the
community contact information will be evaluated by the amount of calls or
emails received from the community.
14

7.3. Illicit Discharge Detection and Elimination
7.3.1. Objectives for Illicit Discharge Detection and Elimination
7.3.1.1. Detect and eliminate illicit discharges, including spills and
illegal dumping.
7.3.1.2. Address significant contributors of pollutants to the MS4. The
permitee may require specific controls for a category of
discharges, or prohibit that discharge completely, if one or
more of these categories of sources are identified as a
significant contributor of pollutants to the MS4.
7.3.1.3. Implement appropriate enforcement procedures and actions.
7.3.1.4. Develop a storm sewer system map showing all outfalls and
waters receiving discharges.
7.3.1.5. Inform employees, businesses, and the general public of
hazards associated with illegal discharges and improper
disposal of waste.
15

7.3.2. BMPs for Illicit Discharge Detection and Elimination
µ; BMP :.
,� ems. able '
_ Meastir Goals r
YR
�YR
YR
YR'
YR
AJ-
(a)
Develop/ Implement Illicit
Develop and implement an Illicit Discharge Detection
X
X
X
X
X
Review/revise the current adopted
Discharge Detection and
and Elimination Program. Include provisions for
regulations within the Town Code of
Elimination Program
program assessment and evaluation.
Ordinances (Chapter 18, Article III)
regarding illicit discharges.
(b)
Establish and maintain appropriate
Establish and maintain adequate legal authorities to
X
X
X
Evaluate current staffing capacity
legal authorities
prohibit illicit discharges and enforce the approved
and determine if additional staffing
Illicit Discharge Detection and Elimination Program.
necessary to manage and enforce the
proposed illicit discharge program.
(c)
Develop a Storm Sewer System
Identify outfall locations and map stormwater drainage
X
X
X
X
The GIS mapping the existing
Base Map
system components. At a minimum, mapping
stormwater drainage system is
components includes outfalls, drainage areas, and
currently being conducted and upon
receiving streams.
the completion of the field work and
creation of the base map, the
corresponding drainage areas shall be
delineated and receiving stream
identified.
(d)
Implement illicit discharge
Implement an inspection program to detect dry weather
X
X
X
Upon completion of the storm sewer
detection procedures
flows at system outfalls. Establish procedures for
base map, develop a stormwater
tracing the sources of illicit discharges and for
outfall inspection program for the
removing the sources. Develop procedures for
Town to detect dry weather flows at
identification of priority areas likely to have illicit
system outfalls.
discharges. Continue to identify, locate, and update
map of drainage system components on a priority basis
per approved Illicit Discharge Program.
(e)
Conduct employee cross -training
Conduct training for municipal staff on detecting and
X
X
X
X
X
Provide educational materials to staff
reporting illicit discharges.
regarding how to recognize illicit
connections and discharges, and who
to contact.
16

BMP : "�
- Measurable Goals_
YR
YR
YR $
yR'
YR
�4, '•" i` --Action..,
(f)
Provide public education
Inform public employees, businesses, and general
X
X
X
X
X
Include educational material
public of hazards associated with illegal discharges and
concerning the hazards associated
improper disposal of waste.
with illegal stormwater discharges
and improper disposal of waste
within "The Morrisville Connection",
the Town's official monthly
newsletter.
(g)
Establish a public reporting
Establish and publicize a reporting mechanism for the
X
X
X
X
X
Develop a public telephone "hotline"
mechanism
public to report illicit discharges.
service to enable the reporting of
illicit stormwater discharges to the
Town.
17

7.3.3. Storm Sewer System Map
Town of Morrisville personnel are currently composing the digital
mapping of the Town's water and sewer systems. When these systems are
completely mapped, the storm sewer system will be mapped. The
locations of all storm sewer drains, manholes, curb inlets and culverts will
be mapped. The proposed structural BMPs from new developments will
be mapped once the project has been completed. Morrisville personnel
will review existing maps of a given area and will then gather coordinates
on the various features using Global Positioning Satellite (GPS)
instrumentation. This digital information will then be downloaded into
GPS-compatible program to connect the features and develop a map of the
system.
7.3.4. Regulatory Mechanism
The Town will develop and adopt an ordinance to prohibit illicit
discharges to the storm sewer system. Examples of such ordinances from
other municipalities will be reviewed and an ordinance will be developed
for the Town of Morrisville within the next two years.
7.3.5. Enforcement
The Illicit Discharge ordinance will contain a section on enforcement.
Enforcement of this ordinance will mirror the Town's enforcement
authority for water and sewer violations. Administrative remedies will
include the issuance of written notice of violation stating the nature of the
violation and providing a time frame for compliance with the ordinance,
and administrative orders to stop all activities contributing to the violation.
Civil penalties for noncompliance may also be assessed up to $10,000 per
day per violation based on the degree and extent of harm to natural
resources, the duration and gravity of the violation, the cost of rectifying
the damage, the amount of money saved by noncompliance, whether the
violation was intentionally committed, the costs of enforcement to the
Town, and the prior record of the violator.
7.3.6. Detection and Elimination
7.3.6.1. Because both sanitary sewer and storm water will be mapped
digitally, the two systems can be easily compared to locate
priority areas. Priority areas will be identified by locating areas
where sanitary sewer service does not exist, or where there are
older sanitary sewer lines. Areas where the storm sewer system
collects runoff from industrial areas will also be considered as
priority areas for potential contaminated runoff or illegal
dumping. Dry weather inspections of storm water outfalls will
be conducted to locate potential non -storm water flows.
H

7.3.6.2. After potential non -storm water discharges have been
identified from the dry weather inspections, potential illicit
sources will be identified. A systematic field investigation will
then be conducted to try to identify the actual source of the
illicit discharge. The investigation of the potential sources may
entail site inspections, chemical analysis, site specific flow
monitoring, and dye or smoke testing.
7.3.6.3. Once the source of an illicit discharge has been identified,
enforcement action will be undertaken to have the source
removed. The enforcement action process will be detailed in
the Illicit Discharge Ordinance. Records of all enforcement
actions will be maintained in the files. These records will be
used in conjunction with the storm sewer system map to track
trends in non-compliance and to identify priority areas for
investigation and increased educational efforts.
7.3.6.4. The illicit discharge detection and elimination plan will be
evaluated based on the number of discharges and quantities of
flow eliminated and the number of dye or smoke tests
conducted.
7.3.7. Illicit Non -Storm Water Discharges
The following list identifies sources of non -storm water discharges that
will be considered illicit:
• Dumping of oil, antifreeze, paint, or cleaning fluids
• Sanitary sewer discharges
+ Chlorinated backwash and draining associated with swimming pools
• Commercial car washes
• Cooling water unless no chemicals have been added and is included in
an NPDES permit
• Septic tank discharges
• Industrial discharges
• Wash water from commercial 1 industrial activities
7.3.8. Allowable Non -Storm Water Discharges
The following list identifies sources of non -storm water discharges that
will be allowable:
• Waterline Flushing
• Uncontaminated Rising Ground Water
• Discharges from Potable Water Sources
• Irrigation Water
• Footing Drains
• Flows from Riparian Habitats and Wetlands
• Fire Fighting Emergency Activities
19

• Landscape Irrigation
• Uncontaminated Ground Water Infiltration to Stormwater Collection
System
• Foundation Drains
• Springs
• Lawn Watering
• NPDES Permitted Discharges
• Wash Water from the Cleaning of Buildings
• Diverted Stream Flows
• Uncontaminated Pumped Ground Water
• Uncontaminated Air Conditioning Condensation
• Water from Crawl Space Pumps
Non -Commercial Car Washing
• Street Wash Water
De -chlorinated Backwash and Draining Associated with Swimming
Pools
7.3.9. Outreach
In an effort to aid with the prevention and removal of illegal discharges
the Town will contact businesses that, by nature of their operation, have
the potential to be a likely source of illicit discharges.
The Town's web site will have contact information for the public to report
illicit discharges to the Town. If the illegal discharge is perceived to be an
emergency the caller will be instructed to call the Public Safety emergency
number.
7.3.10. Decision Process
The creation of a storm sewer system map will allow for comparison with
sanitary sewer maps to identify priority areas of potential illicit discharges.
This map will also document all outfalls in the system where low flow
monitoring can be performed. The mapping operations for the Town are
under the direct supervision of the Utilities Engineer.
The education of the public on the identification and proper disposal of
household hazardous wastes (HHW) as well as the hazards associated with
improper disposal is an important part of the illicit discharge program. The
educational information will be posted on the Town's web site and will be
distributed in newsletters and billing inserts. Wake County currently offers
HHW collection on the first Saturday of each month at the North Wake
Facility and third Saturday of each month at the South Wake Facility. This
service is free to residents of Wake County.
http://www.wakepov.corn/county/recycling/households/houshazwaste.htm
20

North Wake Landfill & Recycling Center
10,200 Durant Road
Raleigh, NC 27615
South Wake Multi -Material Recycling Facility
6000 Old Smithfield Road
Apex, NC 27502
Final authority for all programs rests with the Town Board of
Commissioners.
7.3.11. Evaluation
The success of the illicit discharge detection and elimination program will
be evaluated on the success of the individual BMPs.
Successful completion of the storm sewer system map is key to the
success of the illicit discharge detection and elimination program. This
map will identify all storm water structures and lines for the entire MS4.
The map can then be compared to the sanitary sewer map and to zoning
maps to identify possible septic tank discharges or illegal connections as
well as areas of potential discharge from industrial operations.
The household hazardous waste (HHW) program BMP is already in effect
with a permanent means of disposal of HHW through Wake County at the
South Wake Convenience Center location in Apex. Wake County accepts
HHW from County residents at no charge on the third Saturday of each
month. The education of the public on the identification and proper
disposal of HHW will be the key to the success of this BMP. Information
will be collected from Wake County on the number of participants from
Morrisville. Through a continuous education program, the number of
participants will hopefully increase.
Upon completion of the storm sewer system map and the adoption of the
illicit discharge ordinance, the detection and elimination of illicit
discharges will be a priority for the overall storm water management
program. The success of this BMP will be measured by the number of
illicit connections that are removed from the system, the number of field
tests performed as a result of dry weather inspections, and the number of
reports of illicit discharges incidents received. As the program succeeds,
the number of incident reports and the number of illicit connections should
decline.
21

7.4. Construction Site Runoff Controls
7.4.1. Objectives for Construction Site Runoff Controls
7.4.1.1. Reduce pollutants in stormwater runoff from construction
activities disturbing one or more acres of land surface and
those activities less than one acre that are part of a larger
common plan of development.
7.4.1.2. Provide procedures for public input, sanctions to ensure
compliance, requirements for construction site operators to
implement appropriate erosion and sediment control practices,
review of site plans which incorporates consideration of
potential water quality impacts, and procedures for site
inspection and enforcement of control measures.
7.4.1.3. Establish requirements for construction site operators to control
waste such as discarded building materials, concrete truck
washout, chemicals, litter, and sanitary waste at the
construction site that may cause adverse impacts to water
quality.
22

7.4.2. BMPs for Construction Site Runoff Controls*
BMP
Measurable Goals 0." 4
YR-
YkA
'Ac on
k ti
(a)
Implement a program and establish
Develop a regulatory mechanism and implement a
X
X
X
X
X
Relies on Wake County to comply with
a regulatory mechanism for erosion
program requiring erosion and sediment controls at
this minimum measure.
and sediment control.
construction sites and providing for sanctions to ensure
compliance. Instead of originating a new program, the
permittee: may elect to comply by relying on the
NCDEN-R Division of Land Resources (DLR) Erosion
and Sediment Control Program, either as administered
by the Sedimentation Control Commission (SCC) to
another entity with appropriate jurisdiction, including
the permittee. The permitee may rely on the DLR
program only to the extent that the program satisfies all
the following BMPs.
(b)
Develop requirements on
Require construction site operators to implement
X
X
X
X
X
Relies on Wake County to comply with
construction site operators
erosion and sediment control BMPs and to control
this minimum measure.
construction site wastes that may cause adverse water
quality impacts.
(c)
Provide educational and training
New materials may be developed by the permittee, or
X
X
X
X
X
Relies on Wake County to comply with
materials for construction site
the permittee may use materials adopted from other
this minimum measure.
operators
programs and adapted to the permittec's construction
I
runoff controls program.
I
(d)
Institute plan reviews
Review construction plans and establish procedures
X
X
X
X
X
Relies on Wake County to comply with
that incorporate water quality considerations in
this minimum measure.
construction site plan reviews.
(e)
Establish public information
Establish procedures for receipt and consideration of
X
X
X
X
X
Relies on Wake County to comply with
procedures
erosion and sedimentation information submitted by
this minimum measure.
the public. Publicize the procedures and contact
information. The procedures must lead directly to a
site inspection or other timely follow-up action.
23

- BMP
ura6le;YR
Meas Goals_
,YR
YR=
YR
7CR`
=Action
(f}
Establish inspection and
Establish procedures for site inspection and
Xl
X
X
X
X
Relies on Wake County to comply with
enforcement procedures
enforcement of control measure requirements. The
this minimum measure.
procedures should include prioritizing areas of
inspections based on local criteria.
The Town of Morrisville relies on Wake County to comply with this minimum measure. The preceding table is
modified by the following:
• The Town of Morrisville shall conduct random inspections of local land disturbing activities that have a sediment
and erosion permit, issued by Wake County Environmental Services, to see if the site is in compliance.
• The Town of Morrisville will monitor the Wake County Environmental Services program for effectiveness in the
permittee jurisdiction.
• Potential problems at construction sites with sediment and erosion control permits will be reported to Wake County
Environmental Services.
• Follow-up action by Wake County Environmental Services will be monitored by the Town of Morrisville.
• The Town of Morrisville will maintain a record of findings and follow-up procedures.
The Town of Morrisville shall provide and promote a means for the public to notify the appropriate authorities of
observed erosion and sedimentation problems.
24

7.5. Post -Construction Site Runoff Controls
7.5.1. Objectives for Post -Construction Site Runoff Controls
7.5.1.1. Manage stormwater runoff from new development/
redevelopment that drains to the MS4 and disturbs an acre or
more of land surface, including projects less than an acre that
are part of a larger common plan of development or sale.
7.5.1.2. Provide mechanism to require long-term operation and
maintenance of BMPs.
7.5.1.3. Ensure controls are in place to minimize water quality impacts.
25

7.5.2. BMPs for Post -Construction Site Runoff Controls
_. BMP
Measurable Goals_ ' t
t
YR
YR
;YR=
YR
�
YR _
FAchon x� -
(a)
Establish a post -construction
Develop and adopt by ordinance (or similar regulatory
X
X
X
X
X
Adopt the Phase II Model Ordinance
stormwater management program
mechanism) a program to address stormwater runoff
for North Carolina or the Universal
from new development and redevelopment. Implement
Stormwater Management Program
and enforce the program within 24 months of the
Draft Ordinance as a post -
permit issue date. The ordinance must be reviewed and
construction stormwater management
approved by the Director prior to implementation.
program.
Ensure that controls are in place to prevent or minimize
water quality impacts.
(b)
Establish strategies which include
Develop strategies that include a combination of
X
X
X
X
X
Allow the use of only stormwater
BMPs appropriate for the MS4
structural and/or non-structural BMPs. Implement
quality BMPs designed in accordance
them within 24 months of the permit issue date.
with the Stormwater Best
Provide a mechanism to require long-term operation
Management Practices Manual,
and maintenance of structural BMPs. Require annual
prepared by NCDENR. Require
inspection reports of permitted structural BMPs
operation and maintenance (O&M)
performed by a qualified professional.
manuals; develop long term O&M by
legal documentation and the posting
of security bonds.
(c)
Establish a program to control the
Control the sources of fecal coliform to the maximum
X
X
X
X
X
Provide plastic bags for pet waste in
sources of fecal coliform to the
extent practicable. Develop an oversight program to
an area of town heavily frequented
maximum extent practicable
ensure proper operation and maintenance of on -site
by dog walkers.
wastewater treatment systems for domestic wastewater
Develop a "Don't let your pet
Implement program within 24 months of the permit
pollute" brochure for public
issue date. Municipalities must coordinate this
distribution.
program with the county health department.
Develop a septic base map that
would show lots within the Town's
jurisdiction being served by a private
septic systems. Coordinating with
NC Department of Environmental
Health and Wake County to provide
a method of conducting regular
inspections of the existing systems.
We

BMP .
R
- Measurable Goals;
J.
,YR
l,.,A
YR
�2.
,YR
3
YR'
4
YR-P
S. f
Aeaoti
(d)
Establish trout waters (Tr)
Develop, adopt, and implement an ordinance (or
There are no established trout waters
protection measures (for programs
similar regulatory mechanism) to ensure that the best
within the Town's jurisdiction, and
with development or
management practices selected do not result in a
that trout water protection shalt not
redevelopment draining to Tr
sustained increase in the receiving water temperature.
be established.
waters)
(e)
Establish nutrient sensitive waters
Develop, adopt, and implement an ordinance (or
X
X
X
X
X
Adopt the Neuse River Basin
(NSW) protection measures (for
similar regulatory mechanism) to ensure that the best
performance standards throughout
programs with development or
management practice for reducing nutrient loading is
the Town's jurisdiction.
redevelopment draining to NSW
selected. In areas where the Environmental '
waters)
Management Commission has approved a Nutrient
Sensitive Water Urban Stormwater Management
Program, the provisions of that program fulfill the
nutrient loading reduction requirement. Develop and
include a nutrient application (fertilizer and organic
nutrients) management program in the Post -
Construction Stormwater Management Program
27

7.5.3. Evaluation of Post -Construction Site Runoff Controls
7.5.3.1. Those areas within the jurisdictional area of the Town of
Morrisville that are already subject to the existing State's Neuse
River Basin Nutrient Sensitive Waters Management Strategy
stormwater program are deemed compliant with the post -
construction stormwater management model practices identified
in (7.5.3.2) below.
7.5.3.2. Model Practices. For those areas within the jurisdictional area of
the Town of Morrisville that are not subject to the post -
construction stormwater management provisions of another
existing state stormwater management program, the Post -
construction Storrnwater Management Program must equal or
exceed the stormwater management and water quality protection
provided by the following model practices.
7.5.3.3. The Town of Morrisville Stonn Water Management follows the
rules and regulations set by the Neuse River Basin and/or the
Cape Fear Basin depending on which basin the project may fall
in. The Neuse River Basin regulations have a 30' zone 1 riparian
buffer in which no disturbance is allowed and an additional 20'
zone 2 riparian buffer in which only grading is allowed. The
Cape Fear Basin regulations have a 50' undisturbed riparian
buffer.
7.5.3.4. Low/High Density Projects
The Town of Morrisville does not have separate regulations in
place for Low Density and High Density Projects. All projects
have a maximum impervious surface of 65% where no water -
quality BMP is required. A project may have a maximum of 80%
impervious surface if a BMP is put in place that will bring down
the pollutants to the same level as a 65% impervious
development. The Town requires all post -development runoff to
be no greater than pre -development runoff.
7.5.3.5. The Town of Morrisville will develop an operation and
maintenance component of the Post -Construction Stormwater
Management program that ensures the adequate long-term
operation of the structural BMP's required by the program. The
program will include a requirement that the owner of a permitted
structural BMP submit annually to the local program a
maintenance inspection report on each structural BMP. A
qualified professional must conduct the inspection.
NM

7.5.3.6. Requirements for Controlling Sources of Fecal Coliform (Septic
Systems): The Wake County Environmental Services
Department has jurisdiction over most typical on -site wastewater
systems, or septic systems, in the Town's planning area and
surrounding rural areas. Some large non -typical septic systems or
other on -site wastewater systems may be referred to the NC
Department of Environmental Health. The County currently
approves plans and inspects construction of newly installed septic
systems. The County also assists owners of failing septic systems
by evaluating the system and recommending short-term or long-
term solutions. The Town does not anticipate any change in
Wake County's jurisdiction over septic systems and will continue
to rely on the County and/or State Departments to provide these
services that aid in controlling fecal coliform sources.
7.5.3.7. The Town of Morrisville MS4 does not drain to SA waters.
7.5.3.8. The Town of Morrisville MS4 does not drain to Tr waters.
7.5.3.9. All Storm water from the Town of Morrisville MS4 that drains to
the Neuse River Basin, drains to Nutrient Sensitive Waters
(NSW).
7.5.3.10. The Town's follows Neuse River and Cape Fear River Basin
regulations for disturbance along riparian buffers.
7.5.3.11. As discussed under the Public Education and Outreach section of
this report, the Town will promote proper application, handling,
and disposal of fertilizer to reduce nutrient loading in runoff.
Information will be distributed in newsletters, billing inserts,
brochures and on the Town's web site.
7.5.3.12. The Town requires all post -development runoff to be no greater
than pre -development runoff.
7.5.3.13. A comprehensive Watershed Protection Program is not
mandatory as set fort by NCDENR for NPDES Phase 11
requirements. The Town does not anticipate implementing such a
program at this time. However, in Wake County's NPDES Phase
II Program Report, comprehensive watershed protection is
mentioned as a viable planning option on the countywide level,
with participation from local governments (including
Morrisville). Upon Wake County's adoption of any watershed
protection measures, the Town will consider the possibility of
adopting Wake County's regulations or imposing more stringent
watershed protection requirements on its own. Should the Town
P�

decide to implement a comprehensive Watershed Protection
Program in the future (either by adopting Wake County's
program, or adopting its own program), the specific requirements
of such a program may substitute for some, or all of the
requirements for a Post -Construction Stormwater Program.
NCDENR has published a model ordinance related to this topic,
for reference, should the Town decide to pursue this option.
Comprehensive watershed protection is a broad topic that
Morrisville will assess in future years as its stormwater program
develops.
7.5.3.14. Non -Structural BMPs for the Post -Construction Stormwater
Program may include planning procedures or policies on a
community -wide basis or more specific site -based controls. The
Town of Morrisville currently attempts to protect sensitive areas
such as wetlands and riparian areas, maintain and/or increase
opens space, and minimize disturbance of soils and vegetation
through the following means:
7.5.3.15. Land Use Plans and Zoning maps that direct development to
specific areas. The land use plans and zoning changes are
developed with public input and adopted by the Town of
Morrisville Board of Commissioners. The land use plans and
zoning maps provide guidance for the development community.
7.5.3.16. The Town does not have a policy or ordinance to encourage infill
development in high -density areas.
7.5.3.17. Existing Neuse River and Cape Fear River Riparian Buffer
Ordinances. Neuse River Riparian Buffer's requires a 50' buffer
for impervious surface. The inner 30' cannot be disturbed. The
Cape Fear River Riparian Buffer requires an undisturbed 50'
buffer. The Town will follow the respective regulation.
7.5.3.18. Minimize soil and vegetation loss through limiting runoff of post -
development stormwater.
7.5.3.19. Structural BMPs
The Town of Morrisville anticipates allowing any structural
BMP's as may be recommended by agencies of the State of North
Carolina in order to accomplish specific stormwater goals. Some
of the specific goals described herein include runoff volume goals
restricting post -development runoff to pre -development levels, as
well as water quality goals for total suspended solids (TSS)
removal and total nitrogen (TN) removal in the Neuse River
Basin. Preliminary sources of information from NCDENR
30

regarding acceptable BMP's include, but are not limited to, NC
DWQ's Stormwater Best Management Practices manual and NC
DWQ's Neuse River Basin: Model Stormwater Program for
Nitrogen Control. NC DWQ, NC State University and the North
Carolina Cooperative Extension Service have all provided
training and conducted research on structural BMP use in North
Carolina. The Town intends to use these and other resources in
determining which BMP's may be in the best interest of its
stormwater program.
A preliminary list of structural BMP's that the Town plans to
include in its post -construction stormwater runoff control
program is as follows:
• Dry Extended Detention Ponds
• Wet Ponds
• Bio-retention Areas
• Storm Water Wetlands
• Grassed Swales
7.5.3.20. Regulatory Mechanism
The Town of Morrisville will begin developing a Post -
Construction Stormwater Runoff Control ordinance in Year l so
that the ordinance is adopted and implementation of the program
is begun by the end of Year 2. The ordinance will focus on
regulating post -construction runoff from new development and
redevelopment for projects that meet the criteria for Town
permitting as described earlier. The ordinance will incorporate
NSW requirements, at a minimum in the Neuse River Basin
within the Town's jurisdiction.
7.5.3.21. Operation and Maintenance
The Town of Morrisville will develop an operation and
maintenance component of the Post -Construction Stormwater
Management program that ensures the adequate long-term
operation of the structural BMP's required by the program. The
program will include a requirement that the owner of a newly
permitted structural BMP submit annually to the local program a
maintenance inspection report on each structural BMP. The
program will require that a qualified professional must conduct
the inspection.
7.5.3.22. Decision Process
The Town's first step in developing a Post -Construction
Stormwater Runoff Management program will be to develop
comprehensive ordinances that address the entire program
31

elements discussed in Section 7.5. Once the ordinances are
developed, the Town will update/amend its design and
Construction Standards in accordance with the new ordinance
requirements to provide guidance to the development community
for new development and redevelopment projects. The structural
and non-structural BMP's described in section 7.5.9 and 7.5.10
will be incorporated into the ordinances and/or the design and
construction standards. The requirements of the ordinances and
design standards will be enforced through the plan review
process.
Once construction begins on a project subject to the Post -
Construction Stormwater Runoff Management program, the
Inspection & Enforcement Program will ensure that the project is
built in compliance with the approved plans and all aspects of the
program. If a project includes one or more structural BMP's, it
will have to comply with provisions of the Town's Structural
BMP Operation & Maintenance (O&M) program. In addition,
the BMP O&M program will ensure that the structural BMP's
constructed within the Town's jurisdiction are inspected at least
annually and maintained in good working condition to provide
the most benefits to water quality.
As this decision process illustrates, the Town's proposed Post -
Construction Stormwater Runoff Management program addresses
stormwater runoff form new development and redevelopment
projects through all phases of development — planning,
engineering design, construction and long-term operation and
maintenance.
7.5.3.23. Evaluation
The measure of success of the Post -Construction Stormwater
Program may be evaluated by assigning a tangible value to
certain "measurable goals". The overall goal of this program
after it is operational will be a measurable improvement in water
quality in local waterbodies as well as no increase in runoff, or
reduced runoff, after construction proposed projects.
Legal Authority
• Whether or not an ordinance was developed to address post -
construction runoff.
• The number of enforcement actions that occur as a result of
the new ordinance.
Design & Construction Standards
32

• Whether or not standards are amended to incorporate
requirements of the post construction stormwater management
program.
• How often the standards are evaluated as to the need for
revisions/updates.
Plan Review
• The number of plans reviewed annually for compliance with
the Post -Construction Stormwater Management Program.
Inspection & Enforcement Program
• The frequency of inspections.
• The number of problems that were identified and remedied.
• The number of enforcement actions taken.
Structural BMP Operation & Maintenance (O&M)
• The frequency of maintenance activities.
• The change in the proportion of BMP's which are well
maintained as a result of maintenance.
• Whether or not an inventory of BMP's requiring maintenance
was completed and is regularly updated.
Structural And Non -Structural BMP'S
• The number of each type of new structural BMP installed.
• The reduction in runoff quantity.
• The acreage of land conserved as buffers and/or open space.
7.6. Pollution Prevention and Good Housekeeping for Municipal Operations
7.6.1. Objective for Pollution Prevention and Good Housekeeping for
Municipal Operations
7.6.1.1. Prevent or reduce storrnwater pollution from municipal
operations.
33

7.6.2. BMPs for the Pollution Prevention / Good Housekeeping for Municipal Operations
- BMP --
Measurable'Goali► � �
^.:
YR
YR`
YR
YR ;
. YR i
= Action
*
5
(a)
Establish an operation and
Develop an operation and maintenance program that
X
X
X
X
X
Review all activities conducted by
maintenance program
has the ultimate goal of preventing or reducing
the Town and develop an inventory
pollutant runoff from municipal operations.
of the activities and potential
pollutant runoff.
(b)
Inspection and evaluation of
Develop an inventory of all facilities and operations
X
X
X
X
X
Conduct an inventory of Town
facilities, operations, the MS4
owned and operated by the permittee with the potential
owned facilities, operations,
system, and associated structural
for generating polluted stormwater runoff. Inspect
stormwater system and BMPs.
BMPs
potential sources of polluted runoff, including the MS4
Develop an annual evaluation
system and associated BMPs. Evaluate the sources,
program and corresponding reporting
document deficiencies, plan corrective actions, and
system and documentation of
document the accomplishment of corrective actions.
corrective actions.
(c)
Conduct staff training
Conduct staff training specific for pollution prevention
X
X
X
Develop a training program to
and good housekeeping procedures.
educate all parks and recreation and
public works employees on clean
water issues and on workplace
responsibilities to reduce or eliminate
pollutants from stormwater.
(d)
Review of municipality owned or
Conduct annual review of the industrial activities with
X
X
X
X
X
operated regulated industrial
a Phase i NPDES stormwater permit owned and
activities
operated by the permittee. Rcview the following
aspects: the Stormwater Pollution Prevention Plan
where one is required, the timeliness of any monitoring
reports required by the Phase I permit, and the results
of inspections and subsequent follow-up actions at the
facilities.
34

7.6.3. Affected Operations
The pollution prevent program will mainly affect the Public Works
Department.
7.6.4. Training
Information on the affects of municipal operations on stormwater
quality will be included in employee newsletters and will be posted
in various departments throughout the municipal operations.
Training materials for the Public Works Department will focus on
storm sewer system cleaning operations and catch basin cleaning.
The Parks Recreation and Cultural Resources Department will
receive training on the proper application and disposal of fertilizer
for their maintenance of greenway trails and parks. The General
Services Department handles the vehicle maintenance and storage
of materials for the other departments in the town. They will
receive training on the proper handling and disposal of used motor
oil.
7.6.5. Maintenance and Inspections
The Town recently purchased a vacuum truck. This vacuum truck
will be utilized for reported stoppages in storm drains. Yardwaste
pickup is done by contract. Our sanitation contractor picks up yard
waste.
7.6.6. Vehicular Operations
Municipal parking lots are swept routinely as part of the regularly
scheduled route by the Town's street sweeper to reduce floatables
in the storm sewer system. The vehicle maintenance operations
occur at the Public Works Compound. The Town has a contract
with Noble Oil for disposal of all used oil. Noble Oil provides the
drums used for storing used oil. New oil is kept in quarts in a
storage cabinet in the maintenance shop.
7.6.7. Waste Disposal
The vacuum truck will drain squeeze out any liquid in anything
that is pulled out. The liquid is put back into the sewer system.
Solids, paper, plastic, etc... is treated as trash and disposed of as
debris.
7.6.8. Flood Management Projects
The Town of Morrisville does not have any flood management
projects.
35

7.6.9. Existing Ordinances
Many of the Towns existing ordinances recognize the importance
of the protection of natural resources and water quality. One of the
particular purposes of the Town's planning and engineering
department is to prevent the adverse impacts of development on
natural resources and features and the availability of water, water
quality, and flood plains.
7.6.10. Other Evaluations
Evaluations of all of the municipal operations have been discussed
in this section of the report.
7.6.11. Decision Process
This program was developed to focus on removing pollutants
before they become a problem.
The pollution prevent program will mainly affect the Public Works
Department regular cleaning of the streets is intended to prevent
clogs and remove potential floatables from the system. The regular
collection of yard waste and municipal solid waste is intended to
reduce illegal dumping of these wastes.
Development of new storm water standards and details will
provide better measures to help insure pollutants remaining out of
the Town's surface waters.
A good maintenance program for inspection and maintenance of
sewer lines prevents backups and potential releases of sewerage to
the MS4.
7.6.12. Evaluation
To evaluate the program, the number of streets cleaned each week
as well as the amount of yard waste collected from the roadside
will serve as measures of the success of this program.
When the storm sewer system map is complete, it will be used to
track the cleaning of catch basins and storm sewer lines that have
been cleaned. The map will also track the sanitary sewer lines that
have been flushed. The flushing of sewer lines will aid in
preventing sewer overflows and the release of sewerage to the
MS4.
While the Town's employees are already aware of the importance
of water quality, the training program will continue to reinforce the
fact with helpful information and tips on how to protect the
environment and improve water quality.
36

Town of Morrisville
Phone: [phone]
Engineering Department Fax: [phone]
F.O. Box 166
Morrisville, North Carolina 27560
December 29, 2006
North Carolina DENR
Division of Water Quality
Stormwater Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Attn: Mr. Mike Randall
RE: NPDES Permit No. NCS000465
Town of Morrisville, Wake County
Annual Report for 12/1/05 - 6/30/06
Dear Mr. Randall,
In accordance with the above reference permit please find the following summary
describing the progress, status and results of our Stormwater Plan from the issuance of
the permit, December 1, 2005 through June 30, 2006.
Publication Education and Outreach
(a) Establish a public education and outreach program.
i. The Town of Morrisville (Town) is one of the 30 local govermental partners in
Clean Water Education Partnership (CWEP). The CWEP runs radio and
television campaigns, provides printed brochures and also maintains a website to
communicate the important fact that clean water is vital for healthy ecosystems
and a high quality of fife for area residents within the Tar -Pamlico, Neuse, and
Cape Fear River Basins.
(b) Informational web site.
i. The Town is developing an informational web page that will be added to the
Town's web site posting newsletters articles on stormwater, information on water
quality, stormwater projects and activities, and also provide links to CWEP, Wake
County Erosion and Sediment Control, NC Division of Water Quality, and the
EPA.
(c) Public education material for schools, homeowners, and/or businesses.
i. The "Town is evaluating the annual distribution of relevant educational materials,
provided by CWEP, Wake County, NC Division of Water Quality, and the EPA,
to Cedar Fork and Morrisville Elementary Schools.
(d) Public education material dissemination.
i. The Town currently displays educational materials provided by CWEP (Clean
Water Begins with You and Me) at the lobby of Town Hall.

ii. The Town is evaluating the inclusion of stormwater educational material within
"The Morrisville Connection", the Town's official monthly newsletter.
Public Involvement and Participation
(a) Administer a public involvement program.
i. The Town is in the process of developing a local public involvement program to
address stormwater issues.
(b) Allow the public an opportunity to review and comment on the stormwater plan.
i. The stormwater plan required Board of Commissioner review and approval and
was available for public review and comment.
ii. The proposed stormwater ordinance will be adopted through public forum as part
of the Town's Board of Commissioners meetings. The stormwater ordinance will
require Board of Commissioner review and approval and will be available for
public review and comment.
(c) Organize a volunteer community involvement program.
i. Upon the establishment of the stormwater public involvement program, the Town
will develop a stormwater volunteer program to promote ongoing citizen
participation, i.e. stream cleanups and storm drain identification program.
(d) Establish a Citizen's Group.
i. The Town is in the process of reviewing the role of the Solid Waste and
Recycling Committee and evaluating renaming the committee and increasing its
role to include stormwater water quality issues.
Illicit Diseharpe Detection and Elimination
(a) Develop/Implement illicit discharge detection and elimination program.
i. The Town is in the process of reviewing the current adopted regulations within
the Town Code of Ordinances (Chapter 18, Article III) regarding illicit
discharges.
(b) Establish and maintain appropriate legal authorities.
i. The Town is in the process of evaluating current staffing capacity and determine
if additional staffing is necessary to manage and enforce the proposed illicit
discharge program.
(c) Developing a storm sewer system base map.
i. The GIS mapping the existing stormwater drainage system is being conducted and
upon the completion of the field work, the corresponding drainage areas shall be
delineated and receiving stream identified.
(d) Implement illicit discharge detection procedures.
i. Upon completion of the storm sewer base map, the Town will develop a
stormwater outfall inspection program to detect dry weather flows at system
outfalls.
(e) Conduct employee cross -training.
i. The Town is evaluating providing educational materials to staff regarding how to
recognize illicit connections and discharges, and who to contact regarding
possible violations.
RANGINEERINGWPDES Phase 111Annual Report (0512-0606).doe

(f) Provide public education.
i. The Town is evaluating the inclusion of educational material concerning the
hazards associated with illegal stormwater discharges and improper disposal of
waste within "The Morrisville Connection", the Town's official monthly
newsletter.
(g) Establish a public reporting mechanism.
i. The Town is in the process of developing a telephone "hotline" service to enable
the public to report illicit stormwater discharges to the Town.
Construction Site Runoff Controls
The Town utilities Wake County for adminishing soil erosion and sediment control
regulations during construction.
(a) The Town is in the process of developing the recommended procedure of conducting
random inspections of sites with active sediment and erosion permits for compliance,
recording any potential problems and then notifying the County inspectors,
documenting the inspector's follow-up action.
Post -Construction Site Runoff Controls
(a) Establish a post -construction stormwater management program.
i. The Town is currently reviewing the Phase II Model Ordinance for North
Carolina and upon release plans to review the Universal Stormwater Management
Program draft ordinance in an attempt of establishing a local stormwater
ordinance for the Town.
(b) Establish strategies which include BMPs appropriate for the MS4.
i. Allow the use of only stormwater quality BMPs designed in accordance with the
Stormwater Best Management Practices Manual, prepared by NCDENR. Require
operation and maintenance (O&M) manuals; develop long term O&M by legal
documentation and the posting of security bonds.
(c) Establish a program to control the sources of fecal coliform to the maximum extent
practicable.
i. The Town has provided plastic bags for pet waste in an area of town heavily
frequented by dog walkers.
ii. The Town is in the process of developing a "Don't let your pet pollute" brochure
for public distribution.
iii. The Town is evaluating the development of mapping that would show lots within
the Town's jurisdiction being served by a private septic system and then
coordinating with NC Department of Environmental Health and Wake County to
establish a method of providing annual inspections of the systems.
(d) Establish trout waters (Tr) protection measures.
i. It should be noted that there are no established trout waters within the Town's
jurisdiction, and that trout water protection shall not be established.
(e) Establish nutrient sensitive water (NSW) protection measures.
i. The Town is in the process of adopting the Neuse River Basin performance
standards throughout its entire jurisdiction.
RAENG1NEERINGWDEs Phase 111Annual Report (0512-0606).doe

Pollution Prevention and Good Housekeeping for Municipal Operations
The Town is currently reviewing the Phase II Model Ordinance for North Carolina and
upon release will review the Universal
(a) Establish an operation and maintenance program.
i. The Town is in the process of reviewing all its typical activities and establishing
an inventory of the activities and the potential pollutant runoff.
(b) Inspection and evaluation of facilities, operations, the MS4 system, and associated
structural BMPs
i. The Town is in the process of conducting an inventory of its facilities, operations,
stormwater system and BMPs, to develop an annual evaluation program and
corresponding reporting system and documentation of corrective actions.
(c) Conduct staff training
i. The Town is evaluating the development of a training program to educate all--•-.�.
Parks and Recreation and Public Works employees on clean water issues and on
workplace responsibilities to reduce or eliminate pollutants from stormwater.
(d) Review of municipality owned or operated regulated industrial activities
i. The Town is in the process of reviewing any of its own industrial activity and
establishing an inventory of the activities and the potential pollutant runoff.
Stormwater Management Plan
It should be noted that the Stormwater Management Plan (attached) has been revised to
reflect the following items:
(a) Section 4 has been revised, updating the responsible party contact list and
organization chart.
(b) Section 7 has been revised, updating all the objectives and BMP tables to match the
final permit and corresponding action items have also been added to the BMP table.
I trust this information is satisfactory for your review. Should you have any questions or
require any additional information, please do not hesitate to contact me.
Sincerely,
Town of Morrisville
k _ ) r
Keith P. Billy, P
Project Engineer
cc: Bethany Georgoulias, NCDENR DWQ
Blake Mills, PE, Town of Morrisville
RAENG1NEERINGINPDES Phase [RAnnual Report (0512-0606).doc

_ State of North Carolina OFFIC USE ONLY
Department of Environment & Natural Resources Date Rec`d
Division of Water Quality Fee Paid
Permit Number
NPDES STORMWATER PERMIT APPLICATION FORM
} This application form is for use by public bodies seeking NPDES stormwater permit coverage for Regulated Public
z 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 M54 Stormwater
Permit Application (SWU-270) and the accompanying narrative documentation, completed in accordance with
Instructions for Preparing the Comprehensive Stormwater Management Program Report (SWU-268) are both
required for the application package to be considered a complete application submittal. Incomplete application
submittals may be returned to the applicant.
I. APPLICANT STATUS INFORMATION
a.
Name of Public Entity
Town of Morrisville_
Seeking Permit Coverage
b.
Ownership Status (federal,
Local
state or local
c.
Type of Public Entity (city,
Town
town, county, prison, school,
etc.
d.
Federal Standard Industrial
SIC 91 - 97
Classification Code
e.
County(s)
Wake
f.
Jurisdictional Area (square
9.8 square miles (ETJ using GIS data)
miles)
6.797 square miles.(Co r orate limits using GIS data
g.
Population
Permanent
11,411 (Based on Dec. 31, 2003 Est.)
Seasonal (if available)
N/A
h.
Ten-year Growth Rate
409.6% Based on growth from the 1990 Census to the
2000 Census
i.
Located on Indian Lands?
❑ Yes ®No
II. RPE / MS4 SYSTEM INFORMATION
a.
Storm Sewer Service Area (square
miles
6.797 sq. miles. (Corporate limits using GIS data)
b.
River Basin(s)
Neuse; Cape Fear
c.
Number of Primary Receiving
Streams
9
d.
Estimated percentage of jurisdictional area containing the following four land use activities:
•
Residential
24%
•
Commercial
14%
•
Industrial
5%
•
Farm
13%
•
Open Space(including Vacant
38%
Total =
100% Exem t Churches Schools = 6%
e.
Are there significant water quality
issues listed in the attached
application report?
® Yes ❑ No
Page 1
SWU-264-103102

NPDES RPE Stormwater Permit Application
III. EXISTING LOCAL WATER QUALITY PROGRAMS
a. Local Nutrient Sensitive Waters Strategy
❑ Yes ® No
b. Local Water Supply Watershed Program
® Yes ❑ No
c. Delegated Erosion and Sediment Control Program
® Yes ❑ No
d. CAMA Land Use Plan
❑ Yes ® No
IV. CO -PERMIT APPLICATION STATUS INFORMATION
(Complete this section only if co -permitting)
a. Do you intend to co -permit with
❑ Yes ® No
a permitted Phase I entity?
b. If so, provide the name and permit number of that entity:
• Name of Phase I MS4
N/A
• NPDES Permit Number
N/A
c. Do you intend to co -permit
❑ Yes ® No
with another Phase II entity?
d. If so, provide the name(s) of
the entity:
N/A
e. Have legal agreements been
finalized between the co-
❑ Yes ❑ No ® N/A
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
Wake County Environmental Services
• Element they will implement
Sedimentation and Erosion Control
• Contact Person
Dave Parnell
• Contact Address
• Contact Telephone Number
[phone]
c. Are legal agreements in place
to establish responsibilities?
ElYes ® No
VI. DELEGATION OF AUTHORITY (OPTIONAL)
The signing official may delegate permit implementation authority to an appropriate staff member. This
delegation must name a specific person and position and include documentation of the delegation action
through board action.
a. Name of person to which permit authority
N/A
has been delegated
b. Title/position of person above
N/A
c. Documentation of board action delegating permit authority to this person/position must be
provided in the attached application report.
Page 2
5WU-264-103102

NPDES RPE Stormwater Permit Application
VII. SIGNING OFFICIAL'S STATEMENT
Please see the application instructions to determine who has signatory authority for this permit
application. If authority for the NPDES Stormwater permit has been appropriately delegated through
board action and documented in this permit application, the person/position listed in Section VI above
may sign the official statement below.
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. 1 am aware that there are signiAcant penalties for submitting false information,
including the possibility of fines and im isonment for knowing violations.
n „ , n V) 4
Signature
4VII t� 920ES
Name
John A. Whitson
Title
Town Manager
Street Address
100 Town Hall Drive
PO Box
P.O. Box 166
City
Morrisville
State
NC
zip
27560
Telephone
[phone]
Fax
[phone]
E-Mail
iwhitson a ci.morrisviile.nc.us
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
Jose F. Martinez III, PE
b.
Title
Utilities Engineer
c.
Street Address
100 Town Hall Drive
d.
PO Box
P.O. Box 166
e.
City
Morrisville
f.
State
NC
g.
zip
27560
h.
Telephone Number
[phone]
i.
Fax Number
[phone]
j.
E-Mail Address
amartinez _,ci.morrisville.nc us
Page 3
SWU-264-103102

NPDES RPE Stormwater Permit Application
IX. PERMITS AND CONSTRUCTION APPROVALS
List permits or construction approvals received or applied for under the following programs. Include contact
name if different than the person listed in Item VIII. If further space needed, attach additional sheets.
a.
RCRA Hazardous Waste
N/A
Management Program
N/A
b.
UIC program under SDWA
c.
NPDES Wastewater Discharge
N/A
Permit Number
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
X. NARRATIVE APPLICATION SUPPLEMENT: STORMWATER MANAGEMENT PROGRAM REPORT
Attach three copies of a comprehensive report detailing the proposed stormwater management program for
the five-year permit term. The report shall be formatted in accordance with the Table of Contents shown
below. The required narrative information for each section is provided in the Instructions for Preparing the
Comprehensive Stormwater Management Program Report (SWU-268). The report must be assembled in the
following order, bound with tabs identifying each section by name, and include a Table of Contents with
page numbers for each entry.
TABLE OF CONTENTS
STORM SEWER SYSTEM INFORMATION
1.1. Population Served
1.2. Growth Rate
1.3. Jurisdictional and M54 Service Areas
1.4. MS4 Conveyance System
I.S. Land Use Composition Estimates
1.6. Estimate Methodology
1.7. TMDL Identification
2. RECEIVING STREAMS
3. EXISTING WATER QUALITY PROGRAMS
3.1, Local Programs
3.2. State programs
Page 4
SWU-264-103102

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

Syr,,
NPDES Phase II
Comprehensive Report
Town of Morrisville
1.00 Town Hall Drive
P.O. Box 166
Morrisville, NC 27560
Contacts:
.John Whitson, Town Manager
jwhitson u,ci.morrisviIIe.nc.us
Phone: [phone]
Jose Martinez, Utilities Engineer
imartinez_a,ei_.morrisvi I le. nc.us
Phone: [phone]
_1
Blake Mills, Town Engineer•`
bmills cr,ci.morrisville.nc.us
Phone: [phone]
General Informiatron
"Town Phone: [phone]
Town Fax: [phone]

•
0
TOWN OF MORRISVILLE RESOLUTIO& 2004-047 RELATED TO MAKING
APPLICATION TO THE NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES FOR NDPES PHASE II
STORMWATER PERMIT
WHEREAS, In 1999 the U.S. Environmental Protection Agency's (EPA) NPDES (National
Pollutant discharge Elimination System) Phase II Final Rule was promulgated and is the next step
in EPA's effort to preserve, protect, and improve the Nation's water resources from polluted
stormwater runoff; and
WHEREAS, on November 6, 2002 the Town of Morrisville was notified by NCDENR DWQ that
the Town of Morrisville was required to develop a stormwater management program and apply
for stormwater permit coverage; and
W" 'o'..i " The f� � nrr;a,vill., is „��a 4 to S_. M+! :t: !TTIiE J i [I TT
E��, _h Town 4_ �Y.. _ _ - _ :� s ., S.�rr.:wa:[!
permit application to NCDENR DWQ before May 1, 2004; and
WHEREAS, The Town of Morrisville NPDES Phase II Stormwater Program is required to have
performance measures in the following six areas:
Public education and outreach
Public participation/involvement
Elicit discharge detection and elimination
Construction site runoff controls
Post construction stormwater management
Pollution prevention; and
NOW THEREFORE BE IT RESOLVED BY THE TOWN OF MORRISVILLE
BOARD. OF COMMISSIONERS approve the NPDES Phase I1 Stormwater Permit
Application to NCDENR DWQ.
ADOPTED THIS THE 26TH DAY OF Anril 2004:
<SE�
rk, G.J. Hooks
Mayor Gordon Cromwell

0
L1,11
•
TABLE OF CONTENTS
S"CORM SEWER SYSTEM INFORMATION ------------------------
Population Served -------------------------------------------------------
1. 1. Growth Rate ---------------------------------------------------------
1.2. Jurisdictional and MS4 Service Areas ---------------------------
1.3. MS4 Conveyance System -----------------------------------------
1.4. Land Use Composition Estimates --------------------------------
1.5. Estimate Methodology ---------------------------------------------
1.6. TMDL Identification-----------------------------------------------
2. RECEIVING STREAMS--------------------------------------------------------- 3
3. EXISTING WATER QUALITY PROGRAMS -------------------------------- 4
3.1. Local Programs---------------------------------------------------------------- 4
3.2. State programs----------------------------------------------------------------- 4
4. PERMITTING INFORMATION ------------------------------------------------ 5
4.1. Responsible Party Contact List ---------------------------------------------- 5
4.2. Organizational Chart ---------------------------------------------------------- 5
4.3. Signing Official--------------------------------------------------------------- 6
4.4. Duly Authorized Representative -------------------------------------------- 6
5. Co -Permitting Information (if applicable)
6. Reliance on Other Government Entity
7. STORMWATER MANAGEMENT PROGRAM -----------------------------
7.1. Public Education and Outreach on Storm Water Impacts---------------
7.2. Public Involvement and Participation --------------------------------------
7.3. Illicit Discharge Detection and Elimination -------------------------------
7.4. Construction Site Stormwater Runoff Control ----------------------------
7.5. Post -Construction Storm Water Management in New Development
and Redevelopment -----------------------------------------------------------
7.6. Pollution Prevention/Good Housekeeping for Municipal Operations --
6
6
7
7
11
14
19
24
26

• 1. Storm Sewer System Information
1.1. Population Served
Morrisville's population estimate has been adjusted to reflect the results of the
2003 Census. According to the 2003 Census, on June 30, 2003, the population of
Morrisville was 11,411. This was a 119.1 percent increase from the 2000 Census,
in which the population of Morrisville was 5,208.
1.2. Growth Rate
Averaging 2.195* persons per single-family dwelling and multi -family unit, it is
estimated that Morrisville yields a total population of 11,411 residents as of
December 31, 2003. The percentage of population increase from 2002 to 2003 is
15.8%. It is estimated that Morrisville added an average of 4.3 people per day
in 2003. This is up from the 2002 average of 3.9 people per day.
* The 2003 Census figure for persons per household in Morrisville was 2.195.
This figure includes both single-family and multi family households.
Town of Morrisville
1J Population
Percent Growth
1980 Census
11251
1990 Census
1 11,022
11307.2%(since 1980 Census)
2000 Census
5,208
11409,6% (since 1990 Census)
2003 Est. (Planning Dept.)
111,411
11119.1% (since 2000 Census)
1.3. Jurisdictional and MS4 Service Areas
Morrisville's corporate lit -nits have increased to a total of 6.797 square miles and
our ETJ has a total acreage of 9.8 square miles.
1.4. MS4 Conveyance System
Most stormwater runoff begins in any given sub -basin as sheet flow (creating a
"non -point source" for surface water pollution). Ultimately however, this
stormwater runoff will become concentrated flow at the receiving stream. In the
Town's urban areas, stonnwater runoff often becomes concentrated prior to the
receiving stream as it enters roadside ditches or pipe systems. As development
occurs in the Town of Morrisville, an increasing portion of runoff will flow across
man-made impervious surfaces and become concentrated in man-made pipes or
ditches pt=ior to entering the receiving stream.
As with most modern storm sewer systems, the Town's MS4 is not combined
40 with any portion of its sanitary sewer system or other discharges *unless by an
illicit connections). Currently, the responsibility for the stonnwater conveyances

.
and infrastructure rests solely with the owner, or entity, which possesses specific
rights to the system. For example, private drainage systems and drainage ditches
are maintained solely by property owners or other responsible parties (i.e.
homeowner's associations). And the numerous NCDOT streets, storm drainage,
and right-of-way that traverse throughout the Town's ETJ are maintained by the
NCDOT. However, the Town also assumes responsibility for the upkeep of storm
drainage pipes and roadside ditches that exist inside the Town -owned right-of-
way or drainage easements. Currently, the Town does not regulate, enforce, or
monitor stormwater issues associated with such infrastructure. One of the goals
of the Town's Stormwater Program is to assign responsibility to private owners
and public agencies alike and hold all parties, including itself, accountable for
pollutants that enter the Ms4 and for the quality of its surface waters in general.
1.5. Land Use Composition Estimate
Land Use Acreage %
Commercial 764.84 14%
Exempt 308.07 6%
Farm 690.10 13%
Industrial 275.82 5%
Open Space 310.23 6%
Residential 1341.43 24%
Vacant 1789.43 32%
Sum: 100%
1.6. Estimate Methodology
The percentages were calculated based on GIS data using Wake County parcel
data dated March 2004.
In this estimate, the designation of open space included properties zoned as
agricultural, HOA open space, golf courses, vacant land and cemeteries. The
category listed as "Exempt" includes all churches and schools, much of which is
actually open space.
1.7. TMDL Identification
Section 303(d) of the Clean Water Act requires States to develop a list of waters
not meeting federal water quality standards and to correct the impaired waters by
developing a management strategy or a total maximum daily loading (TMDL).
Currently, only a portion of Crabtree Creek is the only impaired water in the
Town's jurisdiction according to North Carolina's 2002 Impaired Waters List.
Crabtree Creek is currently not supporting (NS) because of an impaired biological
classification. There are also indications of nutrient enrichment in this creek. The
Basinwide Plan recommends that local initiatives are needed to improve water
• quality in Crabtree Creek and DWQ encourages development of a land use plan
and stormwater program that protects the water quality in Crabtree Creek. The
Town's NPDES Phase II Stormwater Management Program is in keeping with the
2

S recommendations in the Basinwide Plan and should help improve water quality in
Crabtree Creek once implemented.
The State of North Carolina has also developed management strategies that set
forth specific target levels of nutrient loading for certain nutrient sensitive waters.
This is similar to, but not directly associated with, the federal requirements for
TMDL's. The Neuse River Basin Management Strategies set forth various
strategies (including Riparian Buffer Rules) with the goal of reducing nitrogen to
more acceptable levels.
2. TMDL Identification
Cape Fear River Basin
Receiving Stream
Name
Stream Segment
Water Quality
Classification
Use Support Rating
Water Quality Issues
Kit Creek
16-41-1-17-2- 0.3
C; NSW
NR
Nutrients *
Kit Creek
16-41-1-17-2-(0.7)
WS-IV; NSW
NR
Nutrients *
NR = Not Rated in the current Basinwide Water Quality Plan.
* = Nutrients from nonpoint sources was identified as the biggest issue facing water quality throughout
the basin.
Neuse River Basin
Receiving Stream
Name
Stream Segment
Water Quality
Classification
Use Support
Rating
Water Quality
Issues
Crabtree Creek
27-33-(1)
C NSW
Impaired
Poor Bioclassification;
Nutrients*
Crabtree Creek
27-33-(3.5)
B; NSW
Supporting
Nutrients *
Cedar Creek
27-12-1-1- I
C; NSW
NR
Nutrients *
Cedar Creek
27-12-1-1-(2)
WS-IV; NSW
NR
Nutrients *
Stirrup Iron Creek
27-33-4-2
C; NSW
NR
Nutrients *
Turkey Creek
27-33-2
C; NSW
NR
Nutrients *
Indian Creek
NIA — from source
to Crabtree Creek
NR
Nutrients *
NR = Not Rated in the current Basinwide Water Quality Plan.
* = Nutrients from nonpoint sources was identified as the biggest issue facing water quality throughout
the basin.
0

3. Existing Water Quality Programs
3.1. Local Programs
The Town itself does not currently operate or provide staff for any program that
addresses water quality. However, in order to abide by current state regulations, the
Town defers all relevant water quality issues to the appropriate governing state or county
agency. For example, development projects that disturb more than one acre of land are
referred to Wake County for erosion control review, in accordance with the NC
Sedimentation Pollution Control Act of 1973. (Note: Wake County operates their
program under delegated authority from the NC Division of Land Resources). Also, any
projects with buffer related issues, nutrient sensitive water issues, or general issues
regarding water quality standards are referred to NC Division of Water Quality, in
accordance with 15A NCAC 213.0100 and .0200 (see next section).
3.2. State Programs
The State of North Carolina developed its own water quality standards and classifications
program pursuant to G.S. 143-214.1 and 15A NCAC 213.0100 and .0200. The State's
program began in the early 1950's and has been modified over time to be consistent with
the Federal Clean Water Act as well as its own basin -wide approach to water quality.
One aspect of the state basin -wide studies, which applies directly to the Town's surface
waters, is the classification of certain waters as nutrient sensitive waters (NSW
supplemental classification). The Town's sub -basin in the Neuse River basin have been
assigned the supplemental classification of NSW, meaning, generally, that there may be
various nutrient reduction strategies imposed depending on location within the basin.
The Neuse River NSW Management Strategy became effective in 1998 and established a
goal to reduce the average annual nitrogen loading, relative to background levels, by a
minimum of 30% by 2004. This management strategy imposed basin -wide buffer
regulations and required larger and growing municipalities to implement NSW
stormwater programs to help meet the 30% nitrogen reduction goal. The Town of
Morrisville was not one of these mandated municipalities, although the Town does
currently defer all buffer related issues and water quality enforcement, in general, to the
NC Division of Water Quality. However, as required by these Phase 11 regulations the
Town will develop a program to address development that drains to NSW waters (as a
component of the Post -Construction Stormwater Program). Therefore the reduction of
nitrogen will be a goal for the Town on a local level.
Approximately 60% of the waters in the Cape Fear subbasin are impaired by nonpoint
source pollution and all the waters are affected by nonpoint sources. Currently, none of
these impaired waters are in the Town's ETJ. DENR, other state agencies and
environmental groups have programs and initiatives underway to address water quality
problems associated with nonpoint sources. DWQ will notify local agencies of water
quality concerns in this subbasin and work with these various agencies to conduct further
monitoring, as well as assist agency personnel with locating sources of funding for water
quality protection.
4

•
•
E
4. Permitting Information
4.1. Responsible Party Contact List
The following table lists each separate component program that will make up the
TowWs overall Stormwater Program as well as the current individual and job title
responsible for implementing it:
Responsible
Component Program
Name
Phone
Fax
Email
Position
Overall Administration
Town Manager
John Whitson
463-6150
481-2907
whitson a ci,morrisville.nc.us
Public Education &
Outreach Program
Utilities Engineer
Jose Martinez
463-6214
468-601 1
iniartinez a,ci.morrisville.atc.us
Public Involvement &
Participation Program
Utilities Engineer
Jose Martinez
463-6214
468-601 1
'maartinez ci.morrisville.nc.us
Illicit Discharge Detection
Public Works
& Elimination Program
Director
Maurice Gunn
484-3394
469-6582
mcunn aci.morrisyille.nc.us
- - — - -
Construction Site Runoff
Program
Wake County
Dave Parnell
856-7441
Post -Construction
Stormwater Management
Town Engineer
Slake Mills
463-6191
468-601 1
bmills rr,ci.morrisville.atc.us
Program
Pollution Prevention/
Good Housekeeping
Public Works
(Municipal O&M)
Director
Maurice Gunn
484-3394
469-6582
im-unn a,ci.morrisville.nc.us
- --
Program
4.2. Organizational Chart
Mayor/Commissioners
Town Attorney i I 'Town Manager
Engineering I I Finance
Department I Department
Inspections Parks/Rec. & Planning
Department Cultural Res. Department
Department
Town Clerk
Fire Information Assistant "Town
Department Systems Manager
Police
Department Public Works
61

•
4.3. Signing Official
The principal executive officer for the Town is the Town Manager. Mr. John A.
Whitson currently holds this position and will be the signing official for the
NPDES Phase 11 Stormwater permit application.
4.4. Duly Authorized Representative
The Town of Morrisville is not delegating permit application responsibility to
someone other than the signing official.
5. Co -Permitting Information
The Town does not intend to share responsibilities with another municipality to fulfill its
NPDES Phase II permit obligations; therefore co-pennitting information is not
applicable.
6. Reliance on Other Government Entity to Satisfy One or More Permit Obligations
The Town of Morrisville currently relies on Wake County Environmental Services to
administer the sedimentation and erosion control program within the Town's jurisdiction
in accordance with the North Carolina Sedimentation Pollution Control Act of 1973. The
Town plans on continuing this reliance as part of their NPDES Phase II Program to meet
the requirements of the Construction Site Storm Water Runoff Control minimum
measure. Legal agreements are not currently in place between the Town and Wake
County. --
6

7. Stormwater Management Program Plan
7.1. Public Education and Outreach on Storm Water Impacts
7.1.1. BMP Summary Table
BMP's and Measurable Goals for Public Education and Outreach
13MP
Measurable Goals
YR
YR
YR
YR
YR
Responsible Position/Party
1
2
3
4
5
1
Distribute annual newsletter
Distribute annual Public Works and Utilities newsletter
X
X
X
X
X
Utilities Engineer
through billing inserts. Include one article in each newsletter
that targets a specific stonnwater problcm and how citizens
and businesses can reduce their impacts.
2
Distribute pollution prevention
Distribute brochures through event displays and utility bill
X
X
X
X
Utilities Engineer
brochures
inserts. Include information on steps to reduce pollution
sources including proper disposal of used oil and toxic
materials, public reporting of illicit discharges and awareness
of nutrient and fecal coliforn issues.
3
Informational Website
Develop and maintain a stonnwater information page for the
X
X
X
X
X
Utilities Engineer
existing internet website. Post newsletters and brochures and
&
provide information on water quality, stonnwater pollutants
1/S Manager
and ways to minimize them, municipal stonnwater projects
and activities. Also provide contacts for reporting and
questions.
5
Promote the use of compost and
Provide information on backyard composting and fertilizer
X
X
X
X
X
Utilities Engineer
appropnate use of fertilizer.
application rates on the Town's website and in newsletters.
b
Promote water conservation
Maintain water conservation infonnation on the Town's
X
X
X
X
X
Utilities Engineer
website and in newsletters. Promote the use of rain barrels for
watering gardens.
7
Storm Drain Markings
Develop a new Town specification for new curb inlet covers
X
X
X
X
Utilities Engineer
requiring that the cover be embossed with the words "Dump
No Waste? Drains to Waterways'. Storm drain manhole
covers will be required to be embossed with the words"
STORM SEWER".
8
Business Outreach Program
Develop and conduct an educational campaign through the
X
X
X
Utilities Engineer
Town's Development Process to inform businesses on illicit
discharges, reporting, improper waste disposal, sources of
nutrient and fecal coliform loading and actions they can take
to minimize them.

7.1.2. Target Audience
The Town's education program will be designed to target various groups
within the MS4 area. Restaurant and industrial groups will be targeted to
inform them of the impacts of grease and hazardous materials entering the
storm drain system. Homeowners and landscaping companies will be
informed of the proper use and handling of yard wastes and fertilizer
application rates to minimize nutrient loading in the receiving streams.
Homeowners will also be informed of Town programs for recycling.
Programs will also be aimed at teaching school children in the town the
importance of water conservation and protection of our natural water
systems from litter and pollutants. Contractors and developers in the area
will be targeted to educate on the effects of increased sediment loads on
the receiving streams.
7.1.3. Target Pollutant Sources
'Sediment and nutrients, have been identified as the main pollutants of
concern in the receiving waters of the Town of Morrisville MS4. These
pollutants affect the ability of the receiving stream to support biological
communities.
• 7.1.4. Outreach Program
The Town will use an annual newsletter and the Town's website to
educate residentsabout water conservation, recycling opportunities,
household hazardous waste disposal, and the correct use of fertilizers. The
Town frequently involves Home Owners Associations in distributing
infonnation to residents through neighborhood newsletters.
•
Commercial and industrial communities will be educated on impact of
grease and hazardous materials such as oil and fuel, on the storm water
system. These communities will be reached through the current dialogue
that is in place through the Town's Development Process.
Handouts will also be made available for distribution at the various Town
Festivals and events aimed at teaching the Town's school children.
Through these activities, the Town hopes to reach all of its residents and
promote local involvement in the storm water program.
0

7.1.5. Decision Process
The public outreach program for the Town of Morrisville was designed to
focus on the target audiences. The program is designed to get the
information to those audiences in the most effective and efficient way and
to specifically address the main pollutant sources of concern for the MS4
area.
The Town has a large residential and commercial makeup and are the
primary focuses for the outreach program. Through the use of billing
inserts, newsletters and the Town's web site, a large percentage of the
population will have access to information on stormwater. These same
sources of information promote the use of compost and stress the
importance of water conservation.
The Utilities Engineer will have primary responsibility for protection of
water quality in the Town of Morrisville, including riparian buffer
compliance, supervision of the delegated Sedimentation and Erosion
Control Program, preparation of yearly newsletters articles and Utilities
web information, water resources management, and public education for
businesses and schools in the area.
Final authority for all programs rests with the Town Board of
Commissioners.
7.1.6. Evaluation
The success of this minimum measure will be evaluated in a number of
ways based on the specific BMP. The distribution of storm water
information will be evaluated on the feedback that we receive from the
newsletter and the web site and on the number of brochures delivered to
residents.
Information on composting and water conservation is maintained on the
Town's web site as well. This BMP can be evaluated on the feedback
received from the water conservation information that is posted on the
website. The website is where we give tips on conservation, news about
water restrictions, and infonnation on how to purchase compost bins and
rain barrels.
7

0 7.1.6. Evaluation (continued)
All new stone drain covers and manholes will be embossed with
information signifying that water that enters the structure drains to the
waterways. Having this information embossed directly on the drain
structure will serve to notify the public of the fate of the water entering the
drain. The success of this measure can be shown with new standards and
details.
r- -
A business outreach program will be developed to inform businesses about
illicit discharges, improper waste disposal, and sources of nutrient and
fecal coliform loading. This BMP will be evaluated on the number of
businesses included in the program and that have implemented an in-house
policy for the protection of water quality including the installation and
proper maintenance of grease traps and oil water separators.
•
•

7.2. Public Involvement and Participation
7.2.1. BMP Summary Table
BMP's and Measurable Goals for Public Involvement and Participation.
BMP
Measurable Goals
YR
YR
YR
YR
YR
Responsible Position/Party
l
2
3
4
5
1
Solid Waste Advisory Committee
Develop a committee that shall advise the Town Board of
X
X
X
X
X
Utilities Engineer
Commissioners as well as the Town on matters concerning
the disposal of solid waste.
2
Community Contact Information
Set up a webpage giving the community an entail
X
X
X
X
X
Utilities Engineer &
address and phone number to call concerning potential
US Manager
stormwater issues/problems.
3
Ordinance Revisions and facilitate
Once the Town has received its NPDES Phase Il
X
X
X
X
Utilities Engineer
public meetings
permit, the Town will begin developing new
ordinances for the Stormwater Program in which public
hearings are mandated.
4
Promote existing programs such as
Advertise existing programs in newsletters and on the
X
X
X
X
Utilities Engineer &
NCDOT's Adopt -a -highway, DENR's
Town's website to help organize public participation in
Solid Waste Advisory Committee
Streamwatch, and other programs.
existing programs.
11

7.2.2. Target Audience
The Town's public involvement program will be designed to target
various economic and ethnic groups within the MS4 area. Homeowners
and Business owners will be encouraged to get involved in Town
programs for storm water protection.
7.2.3. Participation Program
The Town will provide activities for public participation in stormwater
management and opportunities for public involvement/review of the
stormwater management program, including the following:
7.2.3.1. Create a Solid Waste Advisory Committee
• The committee shall advise the Town Board of Commissioners
on matters concerning the disposal of solid waste. The
committee duties will include the following:
o Monitoring curbside residential solid waste collection;
o Planning/Staffing exhibits at local events to promote
recycling;
o Investigate, implement, or assist other recycling
opportunities in the community;
o Create education articles to be published in local news
media and the Town's newsletter;
o Monitor Wake County recycling efforts and education in
the local schools and recommend supplemental efforts that
serve to improve the Town's recycling efforts;
o Recommend policies for disposal of solid waste;
o Review and comment on budget items related to solid
waste collection and disposal.
7.2.3.2. Involvement/Public Opinion
• Upon approval of its NPDES Phase I I Stormwater permit by
the state, the Town will begin developing ordinances for the
Stonnwater Program. The public hearing process for the new
ordinances will allow a proper forum for the public to comment
on the development of the program.
• The Town will also facilitate public meetings as needed on
specific stormwater-related topics.
7.2.3.3. Activities/Public Participation
• NC DENR's StreamWatch — The Town will promote the
existing DENR program through mailings, pamphlets, and
through the Town's website.
. http://www.ee.cnr.state.nC.us/guide/streaniwatcli.htm
12

• NC DOT's Beautification Projects -- The Town will promote
the existing DOT programs (including Adopt -a -Highway,
Litter Sweep, and others) through mailing's pamphlets, and
through the Town's website.
http://www.doh.dot.state.nc.tis/operatioiis/dp chief en Ylroadsi
de/Beautification/
• The Town promotes water quality annually by actively
participating in Growth Management Task Force Group.
• The Town is a partner in the Center of the Region annual
initiative promoting environmental impacts, green space
planning, and development.
• Community contact info. — The Town's website will encourage
citizens to contact the Town via the Town's phone number or
an email address to report stormwater related problems/issues.
7.2.4. Decision Process
The public involvement/participation program for the Town of Morrisville
was designed to focus on the target audiences and encourage involvement
and participation in the Storm Water Management Program.
The purpose of the public involvement/participation program is to involve
• community groups and individuals in activities that promote awareness of
the importance of protection of storm water. The primary focus of this
program is to provide information to the public and encourage
participation and involvement through public meetings, newsletters and
the Town's web site. Final authority for all programs rests with the Town
Board of Commissioners.
The Utilities Engineer will have primary responsibility for protection of
water quality in the Town of Morrisville, including the preparation of
newsletters and press releases, maintenance of the Public Works and
Utilities web information, and public education for businesses and schools
in the area.
7.2.5. Evaluation
The success of the community stream clean sweeps will be evaluated on
the number of clean sweep events held, the number of participants
involved, and the number of stream miles cleaned. The quantity of waste
collected as a result of the cleanup efforts will provide a means to gauge
the effectiveness of the overall stormwater program. As educational efforts
and community participation expand the amounts of waste collected from
the clean sweep events will hopefully decrease. The success of the
community contact information will be evaluated by the amount of calls or
emails received from the community.
13

•
7.3. Illicit Discharge Detection and Elimination
40 0
7.3.1. BNIP Summary Table
BMP's and Measurable Goals for Illicit Discharge and Elimination.
BMP
Measurable Goals
YR
YR
YR
YR
YR
Responsible Position/Party
1
2
3
4
5
1
Storm Sewer System Map
Develop a map locating all storm water drains, lines,
X
X
X
X
Utilities Engineer
manholes, outfaiis, culverts, and new water quality
BMPs.
2
Household Hazardous Waste
Educate the public on the proper identification and
X
X
X
X
X
Utilities Engineer
Program
disposal of household hazardous waste. Provide a
convenient means of disposal for these items.
3
Illicit Discharge Ordinance
Adopt an ordinance to prohibit illicit discharges to the
X
X
X
Utilities Engineer
storm sewer system and provide enforcement
procedures and actions.
4
Illicit Discharge Detection and
Develop a plan to detect and address illicit non -storm
X
X
X
Utilities Engineer
Elimination
water discharges to the storm sewer system. Identify
potential problem areas by cross-referencing sanitary
sewer maps with the storm sewer maps.
14

7.3.2. Storm Sewer System Map
Town of Morrisville personnel are currently composing the digital
mapping of the Town's water and sewer systems. When these system are
completely mapped, the storm sewer system will be mapped. The
locations of all storm sewer drains, manholes, curb inlets and culverts will
be mapped. The proposed structural BMPs from new developments will
be mapped once the project has been completed. Morrisville personnel
will review existing maps of a given area and will then gather coordinates
on the various features using Global Positioning Satellite (GPS)
instrumentation. This digital information will then be downloaded into
GPS-compatible program to connect the features and develop a map of the
system.
7.3.3. Regulatory Mechanism
The Town will develop and adopt an ordinance to prohibit illicit
discharges to the storm sewer system. Examples of such ordinances from
other municipalities will be reviewed and an ordinance will be developed
for the Town of Morrisville within the next two years.
7.3.4. Enforcement
The Illicit Discharge ordinance will contain a section on enforcement.
Enforcement of this ordinance will mirror the Town's enforcement
authority for water and sewer violations. Administrative remedies will
include the issuance of written notice of violation stating the nature of the
violation and providing a time frame for compliance with the ordinance,
and administrative orders to stop all activities contributing to the violation.
Civil penalties for noncompliance may also be assessed up to $10,000 per
day per violation based on the degree and extent of harm to natural
resources, the duration and gravity of the violation, the cost of rectifying;
the damage, the amount of money saved by noncompliance, whether the
violation was intentionally committed, the costs of enforcement to the
Town, and the prior record of the violator.
7.3.5. Detection and Elimination
7.3.5.1. Because both sanitary sewer and storm water will be
mapped digitally, the two systems can be easily compared
to locate priority areas. Priority areas will be identified by
locating areas where sanitary sewer service does not exist,
or where there are older sanitary sewer lines. Areas where
the storm sewer system collects runoff from industrial areas
will also be considered as priority areas for potential
. contaminated runoff or illegal dumping. Dry weather
15

inspections of storm water outfalls will be conducted to
locate potential non -storm water flows.
7.3.5.2. After potential non -storm water discharges have been
identified from the dry weather inspections, potential illicit
sources will be identified. A systematic field investigation
will then be conducted to try to identify the actual source of
the illicit discharge. The investigation of the potential
sources may entail site inspections, chemical analysis, site
specific flow monitoring, and dye or smoke testing.
7.3.5.3. Once the source of an illicit discharge has been identified,
enforcement action will be undertaken to have the source
removed. The enforcement action process will be detailed
in the Illicit Discharge Ordinance. Records of all
enforcement actions will be maintained in the files. These
records will be used in conjunction with the storm sewer
system map to track trends in non-compliance and to
identify priority areas for investigation and increased
educational efforts.
7.3.5.4. The illicit discharge detection and elimination plan will be
. evaluated based on the number of discharges and quantities
of flow eliminated and the number of dye or smoke tests
conducted.
7.3.6. Illicit Non -Storm Water Discharges
The following list identifies sources of non -storm water discharges that
will be considered illicit:
• Dumping of oil, antifreeze, paint, or cleaning fluids
• Sanitary sewer discharges
• Chlorinated backwash and draining associated with swimming pools
• Commercial car washes
• Cooling water unless no chemicals have been added and is included in
an NPDES permit
• Septic tank discharges
• Industrial discharges
• Wash water from commercial / industrial activities
7.3.7. Allowable Non -Storm Water Discharges
The following list identifies sources of non -storm water discharges that
will be allowable:
r"

•
•
Waterline Flushing
Uncontaminated Rising Ground Water
•
Discharges from Potable Water Sources
•
Irrigation Water f
•
Footing Drains
•
Flows from Riparian Habitats and Wetlands
•
Fire Fighting Emergency Activities
•
Landscape Irrigation
•
Uncontaminated Ground Water Infiltration to Stormwater Collection
System
•
Foundation Drains
•
Springs
•
Lawn Watering
•
NPDES Permitted Discharges
•
Wash Water from the Cleaning of Buildings
•
Diverted Stream Flows
•
Uncontaminated Pumped Ground Water
•
Uncontaminated Air Conditioning Condensation
•
Water from Crawl Space Pumps
•
Non -Commercial Car Washing
•
Street Wash Water
•
De chlorinated Backwash and Draining Associated with Swimming
Pools
7.3.8. Outreach
In an effort to aid with the prevention and removal of illegal discharges
the Town will contact businesses that, by nature of their operation, have
the potential to be a likely source of illicit discharges.
The Town's web site will have contact information for the public to report
illicit discharges to the Town. If the illegal discharge is perceived to be an
emergency the caller will be instructed to call the Public Safety emergency
number.
7.3.9 Decision' Process
The creation of a storm sewer system map will allow for comparison with
sanitary sewer maps to identify priority areas of potential illicit discharges.
This map will also document all outfalls in the system where low flow
monitoring can be perfonned. The mapping operations for the Town are
under the direct supervision of the Utilities Engineer.
The education of the public on the identification and proper disposal of
household hazardous wastes (HHW) as well as the hazards associated with
17

improper disposal is an important part of the illicit discharge program. The
educational information will be posted on the,Town's web site and will be
distributed in newsletters and billing inserts: Wake County currently offers
HHW collection on the first Saturday of each month at the North Wake
Facility and third Saturday of each month at the South Wake Facility. This
service is free to residents of Wake County.
htt :llwww.wake gov.com/count /rec clin /households/houshazwaste.htm
North Wake Landfill & Recycling Center
10,200 Durant Road
Raleigh, NC 27615
South Wake Multi -Material Recycling Facility
6000 Old Smithfield Road
Apex, NC 27502
Final authority for all programs rests with the Town Board of
Commissioners.
7.3.10. Evaluation
The success of the illicit discharge detection and elimination program will
.
be evaluated on the success of the individual BMPs.
•
Successful completion of the storm sewer system rnap is key to the
success of the illicit discharge detection and elimination program. This
map will identify all storm water structures and lines for the entire MS4.
The reap can then be compared to the sanitary sewer map and to zoning
maps to identify possible septic tank discharges or illegal connections as
well as areas of potential discharge from industrial operations.
The household hazardous waste (HHW) program BMP is already in effect
with a permanent means of disposal of HHW through Wake County at the
South Wake Convenience Center location in Apex. Wake County accepts
HHW from County residents at no charge on the third Saturday of each
month. The education of the public on the identification and proper
disposal of HHW will be the key to the success of this BMP. Information
will be collected from Wake County on the number of participants from
Morrisville. Through a continuous education program, the number of
participants will hopefully increase.
191

40
•
Upon completion of the storm sewer system map and the adoption of the
illicit discharge ordinance, the detection and elimination of illicit
discharges will be a priority for the overall storm water management
program. The success of this BMP will be measured by the number of
illicit connections that are removed from the system, the number of field
tests performed as a result of dry weather inspections, and the number of
reports of illicit discharges incidents received. As the program succeeds,
the number of incident reports and the number of illicit connections should
decline.
7.4. Construction Site Stormwater Runoff Control
The Town of Morrisville currently relies on Wake County Environmental
Services to administer the sedimentation and erosion control program within the
Town's jurisdiction in accordance with the North Carolina Sedimentation
Poilution Control Act of 1973. The Town plans on continuing this reliance as
part of their NPDES Phase 11 Program to meet the requirements of the
Construction Site Storm Water Runoff Control minimum measure.
19

7.5. Post -Construction Storm Water Management in New Development and
Redevelopment
7.5.1. The Town of Morrisville Storm Water Management follows the rules and
regulations set by the Neuse River Basin and/or the Cape Fear Basin
depending on which basin the project may fall in. The Neuse River Basin
regulations have a 30' zone 1 riparian buffer in which h no disturbance is
allowed and an additional 20' zone 2 riparian -buffer in which onl'y,grading
is allowed. The Cape Fear Basin regulations have a 50' undisturbed
riparian buffer.
7.5.1.1. Low/High Density Projects
1
(1) The Town of Morrisville does not have separate regulations in
place for Low Density and High Density Projects.
(II) All projects have a maximum impervious surface of 65%
where no water -quality BMP is required. A project may have
a maximum of 80% impervious surface if a BMP is put in
place that will bring down the pollutants to the same level as a
65% impervious development.
(III) The Town requires all post -development runoff to be no
_ greater than pre -development runoff.
7.5.2. The Town of Morrisville will develop an operation and maintenance
component of the Post -Construction Stormwater Management program
that ensures the adequate long-tenn operation of the structural BMP's
required by_the.program:-The-program will include a requirement that the
owner o a pennrtted structural BMP' ubmit annnually to_the.local-program
a maintenance mspeetion report -on each structural BMP. A qualified
professional must conduct the inspection.
7.5.3. Requirements for Controlling Sources of Fecal Colifonn (Septic Systems):
The Wake County Environmental Services Department has jurisdiction
over most typical on -site wastewater systems, or septic systems, in the
Town's planning area and surrounding rural areas- Some large non-
typical septic systems or other on -site wastewater systems may be referred
to the NC Department of Environmental Health. The County currently
approves plans and inspects construction of newly installed septic systems.
The County also assists owners of failing septic -systems by evaluating the
system and recommending short-term or long-term solutions. The Town
does not anticipate any change in Wake County's jurisdiction over septic
systems and will continue to rely on the County and/or State Departments
to provide these services that aid in controlling fecal colifonn sources.
20

0 7.5.4. The Town of Morrisville MS4 does not drain to SA waters.
0
7.5.5. The Town of Morrisville MS4 does not drain to Tr waters.
7.5.6. All Storm water from the Town of Morrisville MS4 that drains to the
Neuse River Basin, drains to Nutrient Sensitive Waters (NSW).
7.5.6.1. The Town's follows Neuse River and Cape Fear River
Basin regulations for disturbance along riparian buffers.
7.5.6.2. As discussed under the Public Education and Outreach
section of this report, the Town will promote proper
application, handling, and disposal of fertilizer to reduce
nutrient loading in runoff. Information will be distributed in
newsletters, billing inserts, brochures and on the Town's
` web site.
7.5.6.3. The Town requires all post -development runoff to be no
greater than pre -development runoff.
7.5.7. A comprehensive Watershed Protection Program is not mandatory as set
fort by NCDENR for NPDES Phase II requirements. The Town does not
anticipate implementing such a program at this time. However, in Wake
County's NPDES Phase 11 Program Report, comprehensive watershed
protection is mentioned as a viable planning option on the countywide
level, with participation from local governments (including Morrisville).
Upon Wake County's adoption of any watershed protection measures, the
Town will consider the possibility of adopting Wake County's regulations
or imposing more stringent watershed protection requirements on its own.
Should the Town decide to implement a comprehensive Watershed
Protection Program in the future (either by adopting Wake County's
program, or adopting its own program), the specific requirements of such
a program may substitute for some, or all of the requirements for a Post -
Construction Stormwater Program. NCDENR has published a model
ordinance related to this topic, for reference, should the Town decide to
pursue this option. Comprehensive watershed protection is a broad topic
that Morrisville will assess in future years as its stonnwater program
develops.
21

•
7.5.8. BMP Summary Table
BMP's and Measurable Goals for Post -Construction Storm Water Management in New Development and
Redevelopment
BMP
Measurable Goals
YR
YR
YR
YR
YR
Responsible Position/Party
1
2
3
a
5
1
Implement an Ordinance to control
Develop and implement an ordinance to manage post-
X
X
X
X
X
Town Engineer
Post -Construction Storm Water
construction storm water discharges to the MS4.
Runoff
2
Implement new Storm Water
Develop new standards and details utilizing various
X
X
X
X
X
Utilities Engineer
Standards for new construction.
Storm Water Management control measures for
proposed projects.
3
Require Structural BMPs
Develop BMP regulations and standards for new
X
X
X
X
X
Utilities Engineer
developments.
22

7.5.9. Non -Structural BMPs for the Post -Construction Stormwater Program may include
planning procedures or policies on a community -wide basis or more specific site -
based controls. The Town of Morrisville currently attempts to protect sensitive
areas such as wetlands and riparian areas, maintain and/or increase opens space, and
minimize disturbance of soils and vegetation through the following means:
7.5.9.1. Land Use Plans and Zoning maps that direct development to specific
areas. The land use plans and zoning changes are developed with
public input and adopted by the Town of Morrisville Board of
Commissioners. The land use plans and zoning maps provide
guidance for the development community.
7.5.9.2. The Town does not have a policy or ordinance to encourage infill
development in high -density areas.
7.5.9.3 Existing Neuse River and Cape Fear River Riparian Buffer
Ordinances. Neuse River Riparian Buffer's requires a 50' buffer for
impervious surface. The inner 30' cannot be disturbed. The Cape
Fear River Riparian Buffer requires an undisturbed 50' buffer. The
Town will follow the respective regulation.
7.5.9.4. Minimize soil and vegetation loss through limiting runoff of post -
development stonnwater.
7.5.10. Structural BMPs
The Town of Morrisville anticipates allowing any structural BMP's as may be
recommended by agencies of the State of North Carolina in order to accomplish
specific storinwater goals. Some of the specific goals described herein include-.
runoff volume_goals=restricting=post=development:runoff;to pre -development levels„
as well as -water quality goals for total suspended sol ds.(_TSS) removal and total
nitro (TN}removal in the Neuse River Basin. Preliminary sources of
info ation'from NCDENR regarding acceptable BMP's include, but are not limited
to, NC DWQ's Stormwater Best Management Practices manual and NC DWQ's
Neuse River Basin: Model Stormwater- Program for Nitrogen Control. NC DWQ,
NC State University and the North Carolina Cooperative Extension Service have all
provided training and conducted research on structural BMP use in North Carolina.
The Town intends to use these and other resources in determining which BMP's
may be in the best interest of its stormwater program.
A preliminary list of structural BMP's that the Town plans to include in its post -
construction stormwater runoff control program is as follows:
0 Dry Extended Detention Ponds
• Wet Ponds
• Bio-retention Areas
23

• Storm Water Wetlands
• Grassed Swales
• Grassed Filter Strips
7.5.11. Regulatory Mechanism
The Town of Morrisville will begin developing a Post -Construction
Stormwater Runoff Control ordinance in Year 1 so that the ordinance is
adopted and implementation of the program is begun by the end of Year 2.
The ordinance will focus on regulating post -construction runoff from new
development and redevelopment for projects that fb et.the-criteria for -Town
permitting as described earlier. The ordinance will incorporate NSW
requirements, at a minimum in th__e N uc se River Basin within-thesowri s
jurisdiction.
7.5.12. Operation and Maintenance
The Town of Morrisville will develop an operation and maintenance
component of the Post -Construction Stonnwater Management program that
ensures the adequate long-term operation of the structural BMP's required by
the program. The prograrn will include a requirement that the owner of a
newly pennitted structural BMP submit annually to the local program a
maintenance inspection report on each structural BMP. The program will
require that a qualified professional must conduct the inspection.
7.5.13. Decision Process
The Town's first step in developing a Post -Construction Stomiwater Runoff
Management program will be to develop comprehensive ordinances that
address all of the program elements discussed in Section 7.5. Once the
ordinances are developed, the Town will update/amend its design and
Construction Standards in accordance with the new ordinance requirements
to provide guidance to the development community for new development
and redevelopment projects. The structural and non-structural BMP's
described in section 7.5.9 and 7.5.10 will be incorporated into the ordinances
and/or the design and construction standards. The requirements of the
ordinances and design standards will be enforced through the plan review
process.
Once construction begins on a project subject to the Post -Construction
Stormwater Runoff Management program, the Inspection & Enforcement
Program will ensure that the project is built in compliance with the approved
plans and all aspects of the program. if a project includes one or more
structural BMP's, it will have to comply with provisions of the Town's
• Structural BMP Operation & Maintenance (O&M) program. In addition, the
BMP O&M program will ensure that the structural BMP's constructed
24

within the Town's jurisdiction are inspected at least annually and maintained
in good working condition to provide the most benefits to water quality.
As this decision process illustrates, the Town's proposed Post -Construction
Stormwater Runoff Management program addresses storinwater runoff form
new development and redevelopment projects through all phases of
development — planning, engineering design, construction and long-term
operation and maintenance.
7.5.14. Evaluation
The measure of success of the Post -Construction Stormwatcr Program may
be evaluated by assigning a tangible value to certain "measurable goals".
The overall goal of this program after it is operational will be a measurable
improvement in water quality in local waterbodies as well as no increase in
runoff, or reduced runoff, after construction proposed projects.
LEGAL AUTHORITY
• Whether or not an ordinance was developed to address post -construction runoff.
• The number of enforcement actions that occur as a result of the new ordinance.
DESIGN & CONSTRUCTION STANDARDS
• Whether or not standards are amended to incorporate requirements of the post
construction stormwater management program.
• How often the standards are evaluated as to the need for revisions/updates.
PLAN REVIEW
• The number of plans reviewed annually for compliance with the Post -
Construction Stormwater Management Program.
INSPECTION & ENFORCEMENT PROGRAM
The frequency of inspections.
The number of problems that were identified and remedied.
The number of enforcement actions taken.
STRUCTURAL BMP OPERATION & MAINTENANCE (O&M)
• The frequency of maintenance activities.
• The change in the proportion of BMP's which are well maintained as a result of
maintenance.
• Whether or not an inventory of BMP's requiring maintenance was completed
and is regularly updated.
STRUCTURAL AND NON-STRUCTURAL BMP'S
• The number of each type of new structural BMP installed.
• The reduction in runoff quantity.
• The acreage of land conserved as buffers and/or open space.
25

7.6. Pollution Prevention 1 Good Housekeeping for Municipal Operations
7.6.1. BMP's and Measurable Goals for Pollution Prevention / Good Housekeeping for Municipal Operations
BMP
Measurable Goals
YR
YR
YR
YR
YR
Responsible Position/Party
1
2
3
4
5
1
Street Cleaning
Set up a schedule for street sweeping to remove
X
X
X
X
X
Public Works Director
(loatables from streets and municipal parking lots.
2
Catch Basin Cleaning
Once new standards and details have been
X
X
X
X
Public Works Director
developed for storm drainage, develop a schedule
for the cleaning of catch basins-
3
Training for Municipal
Develop and implement a training program for
X
X
X
Utilities Engineer
Employees
municipal employees on measures to protect
storm water.
26

0 7.6.2. Affected Operations
The pollution prevent program will mainly affect the Public Works and
Utilities Department
7.6.3. Training
Information on the affects of municipal operations on stormwater quality will
be included in employee newsletters and will be posted in various departments
throughout the municipal operations. Training materials for the Public works
and Utilities Department will focus on sanitary and storm sewer system
cleaning operations and catch basin cleaning. The Parks recreation and Cultural
resources Department will receive training on the proper application and
disposal of fertilizer for their maintenance of greenway trails and parks. The
General Services Department handles the vehicle maintenance and storage of
materials for the other departments in the town. They will receive training on
the proper handling and disposal of used motor oil.
7.6.4. Maintenance and Inspections
The Town recently purchased a vacuum truck. This vacuum truck is mandated
to clean at least 10% of our sewer system each year. Stoppages in storm drains
when reported will be handled with the vacuum truck. Yardwaste pickup is
done by contract. Our sanitation contractor picks up yard waste.
7.6.5. Vehicular Operations
Municipal parking lots are swept routinely as part of the regularly scheduled
route by the Town's street sweeper to reduce floatables in the storm sewer
system. The vehicle maintenance operations occur at the Public Works
Compound. The Town has a contract with Noble Oil for disposal of all used
oil. Noble Oil provides the drums used for storing used oil. New oil is kept in
quarts in a storage cabinet in the maintenance shop.
7.6.6. Waste Disposal
The vacuum truck will drain squeeze out any liquid in anything that is pulled
out. The liquid is put back into the sewer system. Solids, paper, plastic, etc...
is treated as trash and disposed of as debris.
7.6.7. Flood Management Projects
The Town of Morrisville does not have any flood management projects.
46 7.6.8. Existing Ordinances
27

•
Many of the Towns existing ordinances recognize the importance of the
protection of natural resources and water quality. One of the particular
purposes of the Town's planning and engineering department is to prevent the
adverse impacts of development on natural resources and features and the
availability of water, water quality, and flood plains.
7.6.9. Other Evaluations
Evaluations of all of the municipal operations have been discussed in this
section of the report.
7.6.10. Decision Process
This program was developed to focus on removing pollutants before they
become a problem.
Regular cleaning of the streets is intended to prevent clogs and remove
potential floatables from the system. The regular collection of yard waste and
municipal solid waste is intended to reduce illegal dumping of these wastes.
Development of new storm water standards and details will provide better
measures to help insure pollutants remaining out of the Town's surface waters.
A good maintenance program for inspection and maintenance of sewer lines
prevents backups and potential releases of sewerage to the MS4.
7.6.11. Evaluation
To evaluate the program, the number of streets cleaned each week as well as
the amount of yard waste collected from the roadside will serve as measures of
the success of this program.
When the storm sewer system map is complete, it will be used to track the
cleaning of catch basins and storm sewer lines that have been cleaned. The
map will also track the sanitary sewer lines that have been flushed. The
flushing of sewer lines will aid in preventing sewer overflows and the release
of sewerage to the MS4.
While the Town's employees are already aware of the importance of water
quality, the training program will continue to reinforce the fact with helpful
information and tips on how to protect the environment and improve water
quality.
28