SW7070310_CURRENT PERMIT_20070321

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATED
3 a
YYYYMMDD

WW:�_�'7.(�\
�pF \!J ATF9Q J Michael F. Easley, Governor
YWilliam G. Ross Jr., Secretary
r- North Carolina Department of Environment and Natural Resources
p ', Y Alan W. Klimek, P.E. Director
Division of Water Quality
March 21, 2007
Craven County
Attn.: Harold Blizzard, County Manager
406 Craven Street
New Bern, NC 28560
Subject: Permit No. SW7070310
Craven County Judicial Center— Entrance Road
High Density Stormwater Project
Craven County '
Dear Mr. Blizzard:
The Washington Regional Office received a completed Stormwater Application for the subject project on
March 9, 2007. Staff review of the plans and specifications has determined that the project, as proposed, will comply
with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7070310
dated March 21, 2007 to Craven County for wet detention pond to serve the Craven County Judicial Center —
Entrance Road located at 1100 Clarks Road, New Bern, NC.
This permit shall be effective from the date of issuance until March 21, 2017 and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance
requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater
management system will result in future compliance problems. The issuance of this permit does not resolve any
previous violations of the stormwater rules for construction without a permit.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This
request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes,
and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such
demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Samir
Dumpor or me at [phone].
ncerel ,
A Hod e; egion Supervisor
Surface Water Protection Section
Washington Regional Office
AH/sd: J:\WPDATA\WQS\ State SW-SD\Permits — Wet Pond
cc: Joe Riddick, Jr. PE, Robert M. Chiles, PE
Craven County Building Inspections Department
'Aashington Regional Office
Central Files
North Carolina Division of Water Quality Internet: �cw�c.oc�ca(crc uiliic_i^ One
943 Washington Square Mall Phone [phone] NorthCarolina
Washington, NC 27889 Fax [phone] a 'orally
An Equal Opportunity/Affirmative Action Employer -50%RecycleNlO% Post Consumer Paper �/V[i `riLL

State Stormwater Management Systems
Permit No. SW7070310
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Craven County
Craven County Judicial Center — Entrance Road
FOR THE
construction, operation and maintenance of stormwater management systems in compliance with the provisions of
15A NCAC 2H.1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management
plans and specifications and other supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit for wet detention pond to serve the Craven County Judicial Center —
Entrance Road located at 1100 Clarks Road, New Bern, NC.
This permit shall be effective from the date of issuance until March 21, 2017 and shall be subject to the following
specified conditions and limitations:
DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described in the application
and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as described on pages
2 of this permit, the Project Data Sheet.
3. A maximum of 0.9 acres of built upon area is allowed on this 1.79 acre site.
4. All stormwater collection and treatment systems must be located in either dedicated common areas or
recorded easements. The final plats for the project will be recorded showing all such required easements, in
accordance with approved plans.
5. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of
the permit.

DIVISION OF WATER QUALITY
EAST POND - PROJECT DATA
Project Name:
Craven County Judicial Center — Entrance Road
Permit Number:
SW7070310
Location:
Craven County
Applicant:
Craven County
Mailing Address:
406 Craven Street
New Bern, NC 28560
Application Date:
03/09/2007
Receiving Stream:
Bachelor Creek
Classification of Water Body:
C; SW; NSW
Total Site Area:
1.79 ac
Drainage area:
1.79 ac
Total Impervious allowed on site:
0.9 ac.
Wet Pond Depth:
3.5 ft
Required Storage Volume:
4,800 cf
Provided Storage Volume:
4,830 cf
Required Surface Area:
4,513 sf
Provided Surface Area:
6,314 sf
Controlling Orifice:
7/8 inch @ elevation 22.5 ft

4. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices (such as
swales) shown on the approved plans as part of the stormwater management system without submitting a
revision to the permit and receiving approval from the Division,
5. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size
b. Project name change
C. Transfer of ownership
d. Redesign or addition to the approved amount of built -upon area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should require a modification to the
permit.
6. The Director may notify the permittee when the permitted site does not meet one or more of the minimum
requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written
time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall
provide copies of revised plans and certification in writing to the Director that the changes have been made.
SCHEDULE OF COMPLIANCE
1. The permittee will comply with the following schedule for construction and maintenance of the stormwater
management system.
a. The stormwater management system shall be constructed in its entirety, vegetated and operational
for its intended use prior to the construction of any built -upon surfaces except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be
repaired immediately.
2. The facilities must be properly maintained and operated at all times. The approved Operation and
Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals.
3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency including, but not limited to:
a. Semiannual scheduled inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved plans and specifications
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel of
DWQ. The records will indicate the date, activity, name of person performing the work and what actions were
taken.
5. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
6. Upon completion of construction and prior to operation of this permitted facility, a certification must be
received from an appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other supporting
documentation. Mail the Certification to the Washington Regional Office, 943 Washington Square Mall,
Washington, North Carolina, 27889, attention Division of Water Quality.

A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of
five years from the date of the completion of construction.
III. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is
a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality
accompanied by an application fee, documentation from the parties involved, and other supporting materials
as may be appropriate. The approval of this request will be considered on its merits and may or may not be
approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-
215.6(a) to 143-215.6(c).
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules,
regulations, or ordinances which may be imposed by other government agencies (local, state, and federal)
which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take immediate corrective action, including those as may be required by this Division, such as
the construction of additional or replacement stormwater management systems.
5. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a
permit modification, revocation and reissuance or termination does not stay any permit condition.
6. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for
an extension along with appropriate application fee.
Permit issued this the twenty-first day of March, 2007.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7070310

Craven County Judicial Center— Entrance Road
Stormwater Permit No. SW7070310
besigner's Certification
I, , as a duly
Registered Professional Engineer in the State of North Carolina, having been authorized to observe
(periodically/weekly/full time)
the construction of the project
for
(Project)
(Project Owner)
hereby state that to the best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial compliance and intent of the
approved plans and specifications.
Signature
Registration Number
Date
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff drains to the
system.
_4. All roof drains are located such that the runoff is directed into the system.
_5. The outlet/bypass structure elevations are per the approved plan.
_6. The outlet structure is located per the approved plans.
_7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-circuiting of the system.
The permitted amounts of surface area and/or volume have been provided.
_12. Required drawdown devices are correctly sized per the approved plans.
_13. All required design depths are provided.
_14. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
15. The required system dimensions are provided per the approved plans.

OFFICE USE ONLY.
Date Received Fee Paid Permit Number
1 0
5 r.CFH 1VE.0 State of North Carolina
5WACK s/ct/67
Department of Environment and Natural Resources
MAR 0 9 2007 Division of Water Quality.
�p� [�SrT�ORMWATER MANAGEMENT PERMIT APPLICATION FORM
®gyp/Y V Q-WARli' This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
CRAVEN COUNTY
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Harold Blizzard, County Manager
3. Mailing Address for person listed in item 2 above:
406 Craven Street
City: New Bern State: NC Zip: 2B560
Telephone Number: ( 252 ) 636-6600
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Entrance Road To Serve The Craven County Judicial Center
5. Location of Project (street address):
1100 Clarks Road
City: New Bern, NC 28562 County: Craven
6. Directions to project (from nearest major intersection):
Take NCSR 1225 (Clarks Road) West of the Crossover with US HWY 70
Approximately 0.8 miles; Project is on the Right
7. Latitude: 35 Deg. 07.9' Longitude: 77 Deg. 11.5' of project
(see attached portion of Jasper Quad Map)
S. Contact person who can answer questions about the project:
Name: Joe L. Riddick, Jr., P.E. Telephone Number:( 252 ) 637-4702
II. PERMIT INFORMATION:
1. Specify Miether project is (check one): XX New Renewal Modification
Form SWU-101 Version 3.99 Page I of

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number N/A and its issue date (if known)
3. Specify the type of project (check one):
Low Density XX High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major XX Sedimentation/Erosion Control 404/401 Permit XX NPDES Stormwater.
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project .
The Stormwater will be treated in two (2)_grass-lined swales that parallel
the Roadway for the entire lenqth of the Entrance Road; then treated in a
Stormwater Manaqement Wet Detention Basin.
2. Stormwater runoff from this project drains to the
3. Total Project Area: 2.60
5. How many drainage areas does the project have? 1
Bachelor Creek / Neuse
4. Project Built Upon
River basin.
35 %
G. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Name
Bachelor Creek
Receiving Stream Class
C - SW - NSW
Drainage Area
2.6 Ac.
Existing Impervious" Area'
0.0 Ac.
Proposed Impervious*Area
0.9 Ac.
% Impervious" Area (total)
35 %
Impervious`'Surface`Area. '
Drainage Area 1
Drainage Area 2 ,
On -site Buildings
0.0 Ac.
On -site Streets
0.9 Ac.
On-siteParking0.0
Ac.
On -site Sidewalks
0.0 Ac.
Other on -site
0.0 Ac.
Off -site
0.0 Ac.
Total: 0.9 Ac.
Total:
`Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SNVU-101 Version 3.99
Pate 2 of 4

7. How was the off -site impervious area listed above
N/A
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stornm ater management pennit number
as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
39,000 this Entrance Corridor
2. No more than square feet ofany#nt shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone. slate or similar material but do not include wood
decking or the water surface ofswinaning pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state storm eater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming Linder them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 399 Pagc 3 of

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Original and one copy of the Stormwater Management Permit Application Form
One copy of the applicable Supplement Fonn(s) for each BMP
Permit application processing fee of $420 (payable to NCDENR)
Detailed narrative description of stormwater treatment/management
Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
Revision number & date
Mean high water line
Dimensioned property/project boundary
Location map with named streets or NCSR numbers
Original contours, proposed contours, spot elevations, finished floor elevations
Details of roads, drainage features, collection systems, and stormwater control measures
Wetlands delineated, or a note on plans that none exist
Existing drainage (including off site), drainage easements, pipe sizes, runoff calculations
Drainage areas delineated
Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): Robert M
Mailing Address: P. 0. Box 3496
New Bern
Phone: ( 252 1 637-4702
www.robertmchilespe.com
VIII. APPLICANT'S CERTIFICATION
Chiles, P.E. Engineers & Consultants
State: NC Zip: 28564-3496
Fax: ( 252 l 637-3100
[e-mail]
[e-mail]
1, (print or type name of person listed in General Information, item 2)
certify that the information included on this permit appli5atror2
that the project will be constructed in conformance wit the api
and protective covenants will be recorded, and that til propose
NCAC 2H .1000.
Harold Blizzard
form is, to the best of my knowledge, correct and
iroved plans, that the required deed restrictions
dj project complies with the requirements of 15A
Date: Z
Form S\VU-101 Version 3.99 Page.4 of

Permit No. S W %o % a 310
(to be provided by DN'J
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORPTMEWVF—®
WET DETENTION BASIN SUPPLEMENT MAR 18 Z007
This form pray be. photocopied for use as an original ®VGQ-C ARO
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: Entrance Road to Serve the Craven County Judicial Center
Contact Person: Joe L. Riddick, Jr., P.E. Phone Number: (252 ) 637-4702
For projects with multiple basins, specify which basin this worksheet applies to: N/A
elevations
Basin Bottom Elevation
19.0
ft.
Permanent Pool Elevation
22.5
ft.
Temporary Pool Elevation
23.5
ft.
areas
Permanent Pool Surface Area
6,314
sq.
ft.
Drainage Area
2.6
ac.
Impervious Area
0.9
ac.
volumes
Permanent Pool Volume
4,830
cu.
ft.
Temporary Pool Volume
6,908
cu.
ft.
Forebay Volume
980
cu.
ft.
Other parameters
SA/DAI (Chart 4)
4
Diameter of Orifice
7/ 8
in.
Design Rainfall
1
in.
Design TSS Removal 2
90
%
(floor oJ'the basin)
(elevation ofthe orifice)
(elevation of the discharge structure o
(water surface area of the orifice elevation)
(on -site and oJJ-site drainage to the basin)
(on -site and of/ -site drainage to the basin)
(combined voltune of main basin and foreba.v)
(volone detained above the permainent poop
(approximately 20"/o of lolal volume) (20. 2%)
FAQ
5165
(surface area to drainage area ratio f rom D1410 table)
(2 to 5 day temporary pool draw -down required)
(minimum 85°o required) pond 85%
w/ vegetative filter 90%
Porn SWU-102 Rev 3.99 Page I of 4

Footnotes:
1 when using the Division SA/DA tables. the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
In the 20 coastal comities, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicant � Initials
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
in. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) does 0 does not incorporate a vegetated filter at the outlet.
This system (check- one) Vdoes 0 does not incorporate pretreatment other than a forebay.
Form S1A'U-102 Rev 3.99 Page 2 of 4

rl Maintenance activities shall be performed as follows:
I. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain aood vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below'). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 2.60 feet in the main pond, the, sediment shall be removed.
When the permanent pool depth reads 2.25 feet in the forebay, the sediment shall be removed:
BASIN DIAGRAM
(Jill in the blanks)
Permanent Pool Elevation 22.5
Sediment Rc oval EI. 20.25 17j""
_______________+ Sediment Removal Elevation 19.9 75%
{3ottom Elc anon 19.5 �� "/� ------------------------------------------------'---
6ottom Elevation 19.0 25 %,
FORE BAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: Harold Blizzard
Title: County Manager
Note: The legally responsible party should not be a homeowners association unless more than 50`% of the lots have been sold and a
resident of the subdivision has been named the president. .
1, a Notary Public for the State(of�
'County of do hereby certify that �. Z�X l.gti' db Li. >
personally appeared before me this day of aaUack
ov
wledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
4 SEAL
My commission expires
Form S%VU-102 Rev 3.99 Pagc 4 of 4

Permit No. S r, 7 o i o aid
(to be provided hi, DGI'J
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
r
CURB OUTLET SYSTEM SUPPLEMENT
FOR LOW DENSITY DEVELOPMENT WITI I CURB AND GUTTER
This form may be photocopied for use as an original
DWQ Stonnwater Management Plan Review:
A complete Stonnwater management plan submittal includes a stormwater management permit application, a
curb outlet system supplement, a low density supplement, design calculations, and plans and specifications
showing all store water conveyances and curb outlet details.
I. PROJECT INFORMATION
Project Name : Entrance Road to Serve the Craven
Contact Person: Harold Blizzard
County Judicial Center
Phone Number: ( 252 ) 636-6600
Curb outlets to (check one): VX Swale 0 Vegetated Area
11. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the North Carolina Administrative Code Section 15A
NCAC 2H .1008.
.Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent on the Stonnwater Management Permit
Application Form, the.agent may initial below. If a requirement has not been met, attach justification.
Applic7 Initials
a.
b.
Curb outlets direct flow to a "swale or vegetated area.
Swales or vegetated areas receiving curb outlet flow are designed to carry, at a minimum,
the peak flow from the 10-year storm.
c. Flow velocity is non -erosive for peak flow from the 10-year storm event.
d. Longitudinal slope of the swale or vegetated area does not exceed 5%.
e. Side slopes of the swale or vegetated area are no steeper than 5:1 (horizontal to vertical).
f Length of swale or vegetated area is > 100 feet.
g. The system takes into account the run-off at ultimate built -out potential from all surfaces
draining to the sstern (delineate drainage area for each -wale).
ZZ
i.
j•
Swales are located in recorded drainage easements.
Grass type(s) for permanent vegetative cover specified on detail.
Swale detail provided on plans.
PornrSWIJ-105 Ver 3.99 Page I of 3

M. DESIGN INFORMATION
Complete the following table. If additional space is needed the information should be provided in the same
forniat as Table I and attached to this form. Rainfall intensity data can be found in Appendix 8.03 of the State
of North Carolina Erosion and Sediment Control Planning and Design Manual.
Table 1. Swale Design Information (see Notes below)
Swale No.
Drainage
Area (ac)
Impervious
Area (ac)
Grassed
Area (ac)
C
Q
(efs)
(fps)
Vn11..,
(fps)
Flow
Depth-(ft
1
1.85
0.27
1.58
0.46
2.38
4.0
1.37
0.76
0.82
0.25
0.57
0.54
1.24
4.0
1.17
0.60
3
0.06
0.04
0.02
0.59
0.10
4.0
0.22
0.02
4
1.09
0.35
0.74
0.54
1.65
4.0
2.05
0.40
5
2.12
0.37
1.75
0.46
2.73
4.0
2.33
0.48
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Note: Swale No.,3 is actually sheet flow below the curb outlets
Swale No. 4 includes Run Off from Swale No. 2
Swale No. 5 includes Run Off from Swale No. 1
Form SWU-105 Vcr 3.99 Pagc 2 of 3

Ill. CURB OUTLET SYSTEM MAINTENANCE REQUIREMENTS
Mowing will be accomplished as needed according to the season. Grass height will not exceed six inches
at any time.
Swales will be inspected monthly or after every runoff producing rainfall event for sediment build-up,
erosion, and trash accumulation.
Accumulated sediment and trash will be removed as necessary. Swales will be reseeded or sodded
following sediment removal.
4. Eroded areas of the swales will be repaired and reseeded. Swales will be revegetated as needed and in a
timely manner based on the monthly inspections.
Catch basins, curb cuts, velocity reduction devices, and piping will be inspected monthly or after every
significant runoff producing rainfall event. Trash and debris will be cleared away from grates, curb cuts,
velocity reduction devices and piping.
Swales will not be altered, piped, or filled in without approval from NCDENR Division of Water Quality.
I acknowledge and agree by my signature below that I am responsible for the performance of the six
maintenance procedures listed above..1 agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
PrintName and Title: Harold Blizzard
406 Craven Street New Berq, NC 2B560
(252) 6X-6600
Si
Date: z-is-rq-J
Note: 717e legally responsible party shoidd nol me nvners association unless more than 50% q/ the lots have been .cold andel
resident of the subdivision has been named the president.
I, t Notary Public for the State of ounty of
do hereby certify that-_Iqy 1d4a"�uV personally. appeared before tile this
day o and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Nrimess my hand and official seal,
SEAL _ My commission expires
FormSWU-105 Ver3.99 Page 3of 3