SW7080217_CURRENT PERMIT_20080306

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
$W_
DOC TYPE
CURRENT PERMIT
P RO A P VED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATED
YYYYMMDD

a rFq K
Q Michael F. Easl,�o
ley, Gov'emor
G William G. Ross Jn, Secretary
North Carolina Department of Envin ument and Natural Resourecs
Y Coleen H. Sullins, Director
Division of Water Quality
March 6, 2008
Craven Community College
Attn.: Johnny Peterson, Vice President of
Finance and Administrative Services
800 College Court
New Bern, NC 28562
Subject: Stormwater Permit No. SW7080217
Craven Community College Parking Lot
Expansion
High Density Project
Dear Mr. Peterson: Craven County
The Washington Regional Office received a complete Stormwater Management Permit
Application for Craven Community College Parking Lot Expansion on February 25, 2008. Staff
review of the plans and specifications has determined that the proJ'ect, as proposed, will
comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are
forwarding Permit No. SW7080217 dated March 6, 2008, for the construction of the subject
project.
This permit shall be effective from the date of issuance until March 6, 2018, 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.
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].
Inc r Iy,
� AI odge s----
Regional Supervisor
Surface Water Protection Section
ARH/sd: S:\WQS\STORMWATER\PERMITS\SW7080217
cc: Josh Dalton, PE, Sungate Design Group, PA (915 Jones Franklin Road, Raleigh,
NC 27606)
ven County Building Inspections
ashington Regional Office
Central Files
North Carolina Division of Water Quality Interne[: icmm.nncmerquufit�tore One
Washington,
Washington Square Mall Phone [phone] NorthCarolina
Washington,NC 27889 Fax [phone] JhaturZ4
An Equal Opportunity/Affirmative Action Employer- 50% RecycleNlO% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7080217
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 Community College
Craven Community College Parking Lot Expansion
Craven County
FOR THE
construction, operation and maintenance of a Stormwater Wetlands in compliance with
the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "storm water 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.
This permit shall be effective from the date of issuance until March 6, 2018, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
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 page 3 of this permit, the Project Data Sheet. The
stormwater control has been designed to handle the runoff from 71,438 square
feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans.
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 the
approved plans.
The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2 of 8

State Stormwater Management Systems
Permit No. SW7080217
6. The following design criteria have been provided in the Stormwater Wetlands
and
must be maintained at design condition:
a.
Drainage Area, sf:
78,844
b.
Total Impervious Surfaces, ft2:
71,438
C.
Design Storm, inches:
1.0
d.
TSS removal efficiency:
85%
e.
Permanent Pool Elevation, FMSL:
25.0
f.
Required Permanent Pool Surface Area, ft2:
7,578
g.
Provided Permanent Pool Surface Area, ft2:
9,689
h.
Seasonal Low Water Table, FMSL:
22.0
i.
Temporary Storage Elevation, FMSL:
25.75
j.
Required Storage Volume, ft3:
5,683
k.
Provided Storage Volume, ft3:
5,683
I.
Controlling Orifice:
1.25"0 pipe
M.
Receiving Stream/River Basin:
UT to Wilson Creek / Neuse
River Basin
n.
Stream Index Number:
27-101-37
o.
Classification of Water Body:
"C, SW, NSW"
II. SCHEDULE OF COMPLIANCE
1. 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 surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
Page 3 of 8

State Stormwater Management Systems
Permit No. SW7080217
g. Access to the outlet structure must be available at all times.
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. The facilities shall be constructed as shown on the approved plans. 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,, prior to issuance of a Certificate of Occupancy,
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. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
7. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
12. 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.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW7080217
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, 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. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
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 143-215.6A to 143-215.6C.
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) having jurisdiction.
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.
The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. 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.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
10. This permit shall be effective from the date of issuance until March 6, 2018.
Application for permit renewal shall be submitted 180 days prior to the expiration
date of this permit and must be accompanied by the processing fee.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW7080217
Permit issued this the sixth day of March, 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Stormwater Permit No. SW7080217
Page 6 of 8

State Stormwater Management Systems
Permit No. SW7080217
Craven Community College Parking Lot Expansion
Stormwater Permit No. SW7080217
Craven County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
for (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.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No. SW7080217
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.
11. 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.
cc: NCDENR-DWQ Washington Regional Office
Craven County Building Inspections
Page 8 of 8

o
State of North Carolina 5VJ4cK a/°Zs/o$
Department of Environment and Natural Resources
RECEIVED
Division of Water Quality
FEB 2 5 200STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
DWQ-WARD
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Craven Community College
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Johnny Peterson Vice President of Finance and Administrative Services
3. Mailing Address for person listed in item 2 above:
800 College Court
City:New Bern State:NC Zip:28562
Phone: (252 ) 638-4131
Eniail:[e-mail]
Fax: (252 ) 638-4232
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Craven Community College Parking Lot Expansion
5. Location of Project (street address):
Craven Community College 800 College Court
City:New Bern County:Craven
6. Directions to project (from nearest major intersection):
From US 70/NC 43 interchange, head south on S Glenburnie Road/NC 43. Turn right onto College Court and
continue around to the back of the collegeproperty.
7. Latitude:35 06' 45' N Longitude:7, 06' 16" W of project
8. Contact person who can answer questions about the project:
Name:Josh Dalton, PE Telephone Number: (919 ) 859-2243
Email:jdalton@sun atg edesign.com
IL PERMIT INFORMATION:
1. Specify, whether project is (check one)
/Z/ -
❑Renewal ❑Modification
Form SWU-101 Version 8.07
Page 1 of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit numberNA and its issue date (if known)NA
3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks):
❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑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.
Stormwater runoff will be collected and piped to a Stormwater Wetland for treatment. See attached narrative.
2. Stormwater runoff from this project drains to the Neuse River basin.
3. Total Site Area: 1.81 acres 4. Total Wetlands Area: NA acres
5. 100' Wide Strip of Wetland Area: NA acres (not applicable if no wetlands exist on site)
6. Total Project Area**:2.13 acres 7. Project Built Upon Area:100 %
8. How many drainage areas does the project have?1
9. 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.
13a`si11'liifon1ntion': fc•`
DrainageAreal. ,
.,..
.4k Drainage'Areg,2 •"y; t,; ,
Receiving Stream Name
UT to Wilson Creek
Stream Class & Index No.
C, SW, NSW
Drainage Area (so
78,844
Existing Impervious* Area (so
0
Proposed Impervious*Area (so
71,438
% Impervious* Area (total)
90.6
Impervious* Surface Area.
; Drah�age Area L f '-,
d,.4Draviage Area 2
On -site Buildings (so
0
On -site Streets (so
0
On -site Parking (so
71,438
On -site Sidewalks (so
0
Other on -site (so
0
Off -site (so
0
Total (so:
71438
27-101-37
6npervious area is defined as the built upon area including; but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
**Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation.
Donn SWU-101 Version 8.07 Page 2 of

10. How was the off -site impervious area listed above
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following 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.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded deed restrictions and protective covenants for this
project shall include all the applicable items required in the above form, that the covenants will be binding
on all parties and persons claiming under 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 SW401-Low Density
Low Density Supplement
Form SW401-Curb Outlet System
Curb Outlet System Supplement
Form SW401-Off-Site System
Off -Site System Supplement
Form SW401-Wet Detention Basin
Wet Detention Basin Supplement
Form SW401-Infiltration Basin
Infiltration Basin Supplement
Form SW401-Infiltration Trench
Underground Infiltration 'French Supplement
Form SW401-Bioretention Cell
Bioretention Cell Supplement
Form SW401-Level Spreader
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Forst SW401-Wetland
Constructed Wetland Supplement
Form SW401-Grassed Swale
Grassed Swale Supplement
Form SW401-Sand Filter
Sand Filter Supplement
Form SWU-101 Version 8.07 Page 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 Office. (Appropriate office may be found by locating project on the
interactive online map at httn://h2o.etir.state.t)c.us/su/msi maps.hnn)
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
• Original and one copy of the Deed Restrictions & Protective Covenants Form
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR
• Calculations & detailed narrative description of stormwater treahnent/management
• Copy of any applicable soil report
• 'Three copies of plans and specifications (sealed, signed & dated), 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)
VII. 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):Josh Dalton, PE (Sungate Design Group, PA)
Mailing Address:915 Jones Franklin Road
City:Raleigh State:NC Zip:27606
Phone: (919 ) 859-2243 Fax: (919 ) 859-6258
Email:idalton®sun atg edesign.com
Vlll. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, itetn 2) foluun/ Peterson
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2I-I .1000. n
Date: 0/ 8/y
Form SWU-101 Version 8.07 Page 4 of

Stormwater Wetland Inspection and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the stormwater wetland is established, the wetland plants will
be watered twice weekly if needed until the plants become established
(commonly six weeks).
— No portion of the stormwater wetland will be fertilized after the first initial
fertilization that is required to establish the wetland plants.
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— Once a year, a dam safety expert will inspect the embankment.
After the wet detention pond is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of inspection and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
wetland
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The forebay
Sediment has accumulated in
Search for the source of the
the forebay to a depth that
sediment and remedy the problem if
inhibits the forebay from
possible. Remove the sediment and
functioning well.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
revent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The deep pool, shallow
Algal growth covers over
Consult a professional to remove
water and shallow land
50% of the deep pool and
and control the algal growth.
areas
shallow water areas.
Cattails, phragmites or other
Remove the plants.by wiping them
invasive plants cover 50% of
with pesticide (do not spray) -
the deep pool and shallow
consult a professional.
water areas.
Shallow land remains flooded
Unclog the outlet device
more than 5 days after a
immediately.
storm event.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Best professional practices
Prune according to best professional
show that pruning is needed
practices.
to maintain optimal plant
health.
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
of the deep pools (see
dispose of it in a location where it
diagram below).
will not cause impacts to streams or
the BMP.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
The micropool
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
(see diagram below).
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Plants are growing in the
Remove the plants, preferably by
micropool.
hand. If a pesticide is used, wipe it
on the plants rather than spraying.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.

I acknowledge and agree by my signature below that I am responsible for the
performance of the 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:Johnny Peterson
Title:Vice President of Administration and Finance
Address:800 Collette Court New Bern, NC 28562
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.
I, LkyxtseN w Lolri i a Notary Public for the State of
Norkh Cam`l trnL` , County of (' n Q ue n do hereby certify that
W Yl n nv L. Pe kuson personally appeared before me this V-h
day of � 2 b yyCl rr1 D WQ , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My commission expires MAavc h 1 ao I a-
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4
STORMWATER SUBMITTAL REQUIREMENTS
WET DETENTION POND
Objective
A. 'Collect all runoff from all BUA (proposed and/or existing and/or offsite) as the case maybe,
"by any means including piping or swales, and direct it to the pond.
B. r" Check the proposed pond design to make sure it meets or exceeds the minimum design
criteria for surface area, volume and drawdown.
It. What makes up a complete wet detention pond application package?
A. V Two sets of sealed, signed & dated layout & grading plans with appropriate details.
(Additional sets of plans may be requested for projects in certain counties)
B. Completed application with supplement(s), SWU-101, SW401-Wet Pond, and inspection and
IV maintenance agreements.
C%Deed restriction document, if applicable (for subdivisions & projects with out parcels)
D. Sealed, signed & dated calculations.
E. ✓Estimated seasonal high water table elevation at all pond locations.
F. Q'Chlorides test results must be provided if the project is within'/ mile of SR waters (Phase 11).
(This is only required to test out of SR water treatment requirements)
III. BIMS entry (for DWQ use only)
Enter & track application acknowledged date, review date, add info requested/received dates, permit
issue dates, and drainage area info. Best done after the add info letter is written and before sending
permit up for signature.
IV. Shell documents (for DWQ use only)
Permit shells: s:\wqs\stormwater\shelis\highcwmpond
s:\wqs\stormwater\shelis\highsubpond
s:\wqs\stormwater\shells\HDhybrid
Spreadsheet: s:\wgs\stormwater\excel spreadsheets\pond
VI. Review Procedure
A. APPLICATION
1. ✓An original signature is required. Photocopied signatures cannot be accepted.
2. V/✓,A completed wet detention pond supplement and a signed, dated and notarized wet
detention pond Inspection and Maintenance Agreement with an original signature.
3. The numbers on the supplement match up to the numbers used in the calculations and
shown on the plan details.
4. ilt-upon areas are reported in square feet in Section 111.6.
-� 5. �ceiving stream name and classification. This is important because in the non -Phase
II counties, a wet pond cannot be used on a project that is within ''/: mile of and draining
6. Vto SA waters. For Phase II, a wet pond is allowed within % mile of SA waters.
Section 111.6 is filled in -cannot be left blank. One column must be filled in for each
proposed wet pond.
7. ✓If the applicant is a corporation, partnership or LLC, look it up on the Secretary of State
Corporations Database. Make sure corporation is spelled correctly (capitalization and
punctuation matter) and that the person signing the application is at least a vice-
president in the corporation, a General Partner in the partnership, a member in a
member -managed LLC, or the manager of a manager -managed LLC. Need
documentation to support if the Articles of Incorporation do not list the members or
managers of the LLC. If an agent signs, then a letter of authorization is needed from the
president, vice president, general partner, member or manager.
8h/A-For subdivided projects, a signed and notarized deed restriction statement must be
provided.

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a
Wet Detention Pond, cont.
B. CALCULATIONS
1.AVI The orifice is sized based on drawing down the calculated minimum volume in 2-5
days. The average head to use in the orifice equation is approximately one-third of
the distance between the permanent pool elevation (PPE) and the elevation of the
next available outlet above the permanent pool. The elevation of the next available
outlet must be either the elevation where the minimum volume is provided, or it can
be higher. The temporary pool elevation (TPE) to report on the supplement will be
the elevation of the next available outlet above the PPE. The temporary pool volume
(TPV) to report on the supplement is the volume between the specified PPE and the
TPE.
2-0 For Phase 11 projects that are within '/z mile of and draining to SR waters, the
difference in runoff from the predevelopment and post -development conditions for
the 1 year 24 hour storm must be controlled and treated.
3. For Phase II projects, the discharge rate leaving the pond can be no more than the
pre -development discharge rate for the 1 year 24 hour storm.
4. WA -For Phase II projects draining to SA water, no discharge to surface waters may occur
from wet ponds. The discharge leaving the orifice must be effectively infiltrated prior to
reaching surface waters.
5.,%PcThe average pond depth is the permanent pool volume divided by the permanent pool
surface area. The result must be between 3 ft. and 7.5 ft. Parts of the pond can be
deeper than 7.5 ft., but in no case can any part of the pond be less than 3 ft deep.
6. N/Rlf the 85% TSS chart is used a 30' vegetated filter must be provided at the outlet of the
/pond. If the 90% TSS chart is used, no filter is required.
7. V Use the correct SA/DA TSS chart from the BMP Manual noting that there are different
charts for different areas of the State.
8Required surface area at permanent pool.
9V Provided surface area at permanent pool (Based on pond dimensions)
10t.J/ARequired volume calculation based on 1.5" storm for Phase 11 projects' and 1" storm for
all others projects. 'unless the project is Phase 11 and within % mile of and draining to
SR waters then the volume calculation must be based on difference between the pre
11✓ and post development conditions for the 1-yr 24-hr storm.
Table of elevations, areas, incremental volumes and accumulated volumes for overall
-pond and for forebay, to verify volumes provided.
12.✓ Forebay designed to hold 20% of the permanent pool volume. (Range of 18%-22%
OK.)
13. Non -erosive flow for 10 yr. storm in the vegetated filter, if using 85% TSS.
14. The seasonal high water table must be at or below the proposed permanent pool
elevation to assure that the necessary volume will be available above the permanent
pool.
15.✓ Rounding numbers off during the calculation process can result in deficiencies. Do not
round the numbers until you get to the final result.
16.,/An additional one foot must be excavated below the bottom elevation of the pond. The 1
foot sediment accumulation depth is not included in the average depth calculation.

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Wet Detention Pond, cont.
C. PLANS- Due to storage space constraints, plan sheets should be kept to a minimum. For
small commercial single wet pond projects, the plan set could consist of only 2 or 3 sheets,
layout, grading and details. For larger projects, show as much information as possible on as
few sheets as possible, without cluttering them up.
1. ✓Development/Project Name
2.✓Engineer name and firm.
3. t /Legend
4. North Arrow
5. ✓Location Map with nearest intersection of two major roads shown. Major road is any 1,
2; or 3 digit NC, US or interstate highway.
6. ✓Scale- standard engineering scale, no off-the-wall stuff.
7. .✓/Date
8. V Revision number and date, if applicable.
9. VOriginal contours, proposed contours, spot elevations, finished floor elevations, pipe
averts, swale inverts, etc.
10Y Existing drainage (piping, swales, ditches, ponds, etc.), including off -site. Include a map
delineating the offsite drainage areas.
11Y roperty/Protect boundary lines, bearing & distances.
12Y can High Water Line or Normal High Water Line, if applicable.
13. The permanent pool elevation must be above the SHWT and above the lowest
elevation of adjacent wetlands. Evaluate the need for a liner and/or berm/slurry wall to
prevent dewatering the wetland.
14.�Drainage easement widths, pipe sizes and swale inverts are provided.
15.{�Wetlands delineated, or a note on the plans that none exist. Get a copy of the wetlands
delineation map signed by the Corps of Engineers, or have the applicant include a copy
of the unsigned delineation map submitted to the Corps. Wet ponds may not be located
in wetlands unless a permit to fill those wetlands has been obtained.
16.✓Details for the roads, parking, cul-de-sacs, including sidewalk width, radii, dimensions &
slopes.
17.4/*partment / Condo development- Provide a typical building footprint with dimensions
and note all concrete and wood deck areas.
18. VThe drainage area for each wet pond is clearly delineated and numbered to match up to
the calculations and supplement. Drainage area delineation is best done as a separate
plan sheet.
19.VA pond section detail to include the forebay, a 10 foot wide vegetated shelf, pertinent
elevations for the bottom, permanent pool, temporary pool, and SHWT, 3:1 slopes
above the permanent pool, and the weir elevation between the main pond and the
forebay.
20.1/The 10 vegetated shelf extends 6" below and 6" above the permanent pool elevation.
21.✓An outlet structure detail showing a trash rack with s6" square openings, the necessary
orifice invert elevation (i.e., the permanent pool), orifice size and temporary pool.
elevation.
22✓/Dimensions for each line and arc formed by the permanent pool contour.
23V Where the 85% TSS chart was used, a 30 ft. vegetated fitter strip is required to be
shown on the plans & detailed (elevations, inverts, slopes, and flow spreader
✓ mechanism). Please note that the filter strip is not a ditch.
24. A forebay is provided for each inlet and located so as to prevent short-circuiting.
25.vThe pond must have a minimum 1.5:1 length to width ratio and a minimum 3:1 flow path
length. Artificial "baffles" of timber, vinyl, or earth can be used to create a longer flow
path. The top elevation of the baffle should be set at the temporary pool elevation or
higher.
26.✓A Vegetation plan is specified for the pond, including slopes. Wetlands species are
listed for planting on the 10:1 shelf. Weeping Love Grass is not suitable as a permanent
vegetated cover for pond slopes.
2761kll roof drainage must be directed to the pond. Show the roof drain collection lines on
the plan. This is necessary for projects where the buildings back up the property lines
where roof drainage may leave the site prior to going through the pond.

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I.e

Permit Number
(to be provided by DWO)
®gin
NCDENR3Ik CE.iVE0
FEB 2 5 2008
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
Ct A1f1 141 n 1�� This form must be filled out, printed and submitted.
Th0 Requiftd'ltems.Checklist (Part III) must be printed, filled out and submitted along with all the required information.
II.-P-ROJECT"INFORMATION'k'''
Project name Craven Community College Parking Lot Expansion
Contact name Josh Dalton, PE
Phone number [phone]
Date February 14, 2008
Drainage area number 1
II:jDESIGNrINFORMATION�----
Site Characteristics
Drainage area
78,844 ftZ
Impervious area
71,438 ftZ
Percent impervious
90.6% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak
Y (Y or N)
Flow?
1-yr, 24-hr runoff depth
3.7 in
1-yr, 24-hr intensity
0.15 in/hr
Pre -development 1-yr, 24-hr runoff
2.01 ft3/sec
Post -development 1-yr, 24-hr runoff
6.84 ft3/sec
Pre/Post 1-yr, 24-hr peak control
4.8 ft3/sec
Storage Volume: Non -SR Waters
Design volume (temporary pool volume)
5,683 ft3 OK
Depth of temporary pool/ponding depth (Dple,$)
9 in OK
Drawdown time
3.21 days OK
Diameter of orifice
1.25 in OK
Coefficient of discharge (Co) used in orifice diameter
0.60 (unitless)
calculation
Driving head (H,) used in the orifice diameter calculation 0.250 it OK
Storage Volume: SR Waters Parameters
1-yr, 24-hr depth
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
r
ft3
ft3
ft3
ft3
O�Of WA7 Qr
h 9
� r
o �
Forth SW401-Wetland-Rev.1 Parts I and II. Project Design Summary, Page 1 of 3

`f Permit Number
(to be provided by DWQ)
Surface Areas of Wetland Zones
Surface Area of Entire Wetland
9,689 ft2
OK
Shallow Land
3,575 ft2
OK
The shallow land percentage is:
37%
Shallow Water
4,000 ftZ
OK
The shallow water percentage is:
41%
Deep Pool
Forebay portion of deep pool (pretreatment)
1,181 ftZ
OK
The forebay surface area percentage is:
12%
Non-forebay portion of deep pool
933 ftZ
OK
The non-forebay deep pool surface area percentage is:
10%
Total of wetland zone areas
9,689 ftZ
OK
Add or subtract the following area from the zones 0.00 ftZ
Topographic Zone Elevations
Temporary Pool
Shallow Land (top)
25.75 fmsl
Permanent Pool
Shallow Water (top)
25.00 fmsl
Deep Pool (top)
24.50 fmsl
Most shallow point of deep pool's bottom
21.50 fmsl
Deepest point of deep pool's bottom
21.50 fmsl
Design must meet one of the following two options:
This design meets Option #1,
Deep pool is Vinches below SLWT, If yes:
Y (Y or N)
SLWT (Seasonally Low Water Table)
22.00 fmsl
OK
This design meets Option #2,
Has a clay liner
If yes:
Depth of topsoil above clay liner
in
Topographic Zone Depths
Temporary Pool
Shallow Land
9 in
OK
Permanent Pool
Shallow Water
6 in
OK
Deep Pool (shallowest)
36 in
OK
Deep Pool (deepest)
36 in
OK
Planting Plan
Are cattails included in the planting plan?
N (Y or N) OK
Number of Plants in planting plan recommended:
Herbacious (4'inch diameter)
294
Shrubs/small trees (1 gallon or larger)
196
Trees (1.5" dbh)
49
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4inch diameter)
295 OK
Shrubs/small trees (1 gallon or larger)
196 OK
Trees (1.5" dbh)
50 OK
Form SW401-Wetland-Rev.1 Parts I and 11. Project Design Summary, Page 2 of 3

Permit Number
(to be provided by DWD)
Additional Information
Can the design volume be contained?
Y
(Y or N)
OK
Does volume in excess of the design volume Flow evenly
N
(Y or N)
Excess volume must pass through filter.
distributed through a vegetated filter?
What is the length of the vegetated filter?
It
Does the design use a level spreader to evenly distribute flow?
N
(Y or N)
Show how flow is evenly distributed.
Are calculations for supporting the design volume provided in the
Y
(Y or N)
OK
application?
Is BMP sized to handle all runoff from ultimate build -out?
Y
(Y or N)
OK
Is the BMP located in a recorded drainage easement with a
NA
(Y or N)
Insufficient ROW location.
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
3.0 :1
OK
Approximate wetland length
186.0 It
Approximate wetland width
62.0It
Approximate surface area using length and width provided
11,532 ft2
This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction?
Y
(Y or N)
OK
Form SW401-Wetland-Rev.1 Pads I and 11. Project Design Summary, Page 3 of 3

Permit No.
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package
will result in a request for additional information. This will delay final review and approval of the project. Initial in the space
provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below.
If a requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Wetland dimensions (and length to width ratio),
- Pretreatment system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
2. Plan details (1" = 50' or larger) for the wetland showing:
- Wetland dimensions (and length to width ratio)
- Pretreatment system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Overflow device, and
- Boundaries of drainage easement.
3. Section view of the wetland (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Wetland layers
All wetlands: Shallow land depth, shallow water depth, deep pool depth
Option 1, no clay liner: SLWT depth
Option 2, clay liner: Depth of topsoil on top of liner, liner specifications
l 1 4. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
U - A variety of suitable species (not including cattails),
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
5. A construction sequence that shows how the wetland will be protected from sediment until the entire
drainage area is stabilized.
^n GAMS 6. The supporting calculations (including drawdown calculations).
uV �/ T A copy of the signed and notarized inspection and maintenance agreement.
8. A copy of the deed restriction.
SW401-Wetland-Rev.1 Part III, page 1 of 1