SW8990923_Historical File_20020826

Michael F. Easley, Governor
AF9
Isk,
Dr. Eric McKeithan, President
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
August 26, 2002
Trustees of Cape Fear Community College
411 South Front Street
Wilmington, NC 28401
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
Subject: Permit No. SW8 990923
Cape Fear Community College -North Campus
High Density Stormwater Project
New Hanover County
Dear Dr. McKeithan:
The Wilmington Regional Office received a complete modification to the-Stormwater
Management Permit Application for Cape Fear Community College -North Campus on August
21, 2002. 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. SW8 990923 dated August 26, 2002, for the construction of Cape
Fear Community College -North Campus.
This permit shall be effective from the date of issuance until January 28, 2010, (10 ycars from the
original issue date) 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 fixture compliance problcros.
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, P.O. Drawer 27447, Raleigh, NC 27611-7447. 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
Linda Lewis, or me at [phone].
Sincerely,
a4�0 (3
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\990923.AUG
cc: Mark Hargrove, P.E.
Tony Roberts, New Hanover County Inspections
Beth E. Wetherill, New Hanover County Engineering
Linda Lewis
Wilmington Regional Office
Central Files
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

State Stormwater Management Systems
Permit No. SW8 990923
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
Trustees of Cape Fear Community College
Cape Fear Community College -North Campus
New Hanover County
FOR THE
construction, operation and maintenance of three wet detention ponds 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.
This permit shall be effective from the date of issuance until January 28, 2010 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 controls
designated as Ponds 1, 2 and 3, have been designed to handle the runoff from a total of
1,268,467 ft2, 280,526 ftZ, and 1,277,615 W, respectively, of built -upon area.
3. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
2

State Stormwater Management Systems
Permit No. SW8 990923
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Name of Receiving Stream/Index #:
Classification of Water Body:
If Class SA, chloride sampling results:
Cape Fear Community College
North Campus
SW8 990923
New Hanover County
Dr. Eric McKeithan, President
Trustees of Cape Fear Community College
411 South Front Street
Wilmington, NC 28401
January 28, 2000 (modified August 21, 2002)
Prince George Creek / CPF23 (18-74-53)
"C Sw"
n/a
Pond 1
Pond 2
Pond 3
Drainage Area, acres:
41.60
9.20
41.90
m Pond Depth, feet:
6.00
5.00
5.50
Permanent Pool Elevation, FMSL:
27.50
25.00
25.00
Total Impervious Surfaces, ft2:
1,268,467
280,526
1,277,615
Buildings, ft2:
31,363
0
30,928
Streets, ft2:
11,761
23,958
34,848
Parking, ft2:
91,040
57,500
84,506
Sidewalk, ft2:
22,216
0
23,087
Other, ft2:
0
0
46,174
Future Area, ft2:
1,112,087
199,068
1,058,072
Offsite Area entering Pond, ft2:
none, per Engineer
Required Surface Area, ft2:
70,672
20,038
82,132
Provided Surface Area, ft2:
96,948
31,061
82,208
Required Storage Volume, ft3:
102,685
22,709
103,426
Provided Storage Volume, ft3:
104,272
25,661
104,366
Temporary Storage Elevation, FMSL:
28.55
25.80
26.20
Controlling Orifice Pipes:
3 @ 3.0" (p
1 @ 2.0" cp
2 @ 3.0" cp
3

State Stormwater Management Systems
Permit No. SW8 990923
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in it's entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface except
roads.
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 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.
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. Decorative spray fountains will not be allowed in the stormwater treatment system.
6. 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.
7. 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.
8. 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.
9. 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.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
10. The Director may determine that other revisions to the project should require a
modification to the permit.
11. A copy of the approved plans and specifications shall be maintained on file by the
4

State Stormwater Management Systems
Permit No. SW8 990923
Permittee for a minimum of ten years from the date of the completion of construction.
12. Prior to the sale of any portion of the property, an access/maintenance easement to the
stormwater facilities shall be granted in favor of the permittee if access to the stormwater
facilities will be restricted by the sale of any portion of the property.
13. The permittee is responsible for verifying that the proposed built -upon area does not
exceed the allowable built -upon area.
14. The runoff from all built -upon area on the project must be directed into the permitted
stormwater control system.
15. 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 pemuttee shall provide .copies of revised plans and___.
certification in writing to the Director that the changes have been made.
M. 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 143-21.5.6A to .143-215.6C.
.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 permittee grants DENR Staff permission to enter the property 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.
Permit issued this the 26th day of August, 2002.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
4 Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 990923

State Stormwater Management Systems
Permit No. SW8 990923
Cape Fear Community College -North Campus Page 1 of 2
Stormwater Permit No. SW8 990923
New Hanover 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
0

State Stormwater Management Systems
Permit No. SW8 990923
Page 2 of 2
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. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided. It
13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspector
7

OFFICE USE ONLY
Date Received
Fee Paid
Permit Number
- -0 - Zcoz
1 - 20 050514
I 5Gv
State of North Carolina
Department of Environmental and Natural Resources
Division of Water Quality
STORMI WATER MANAGEMENT PERMIT APPLICATION FORM
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):
Cape Fear Community College
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Dr. Eric McKeithan, President
3. Mailing Address for person listed in Item 2 above:
411 North Front Street
City: Wilmington State: NC Zip: 28401
Telephone Number: (910) 3 62-700 1
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Cape Fear Community College
5. Location of Project (street address):
On Blue Clay Road, + 650 ft from NC 132
City: Wilmington County New Hanover
6. Directions to project (from nearest major intersection):
+ 2,600 LF northeast of the intersection of NC 132 and Blue Clay Road (SR 1318)
7. Latitude:. 34" 19 ' 00" N Longitude: 77' 52 " 45" W of project.
8. Contact person who can answer questions about the project::
Name: Mark Hargrove, PE
IL PERMIT INFORMATION:
1. Specify whether project is (check one): New
Form SWU-101 Version 3.99 Page 1 of 4
Telephone Number: [phone]
Renewal X Modification

2.
0
4
If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number SW8 990923 and its issue date (if known) . Jan. 28, 2000
Specify the type of project (check one):
Low Density X High Density Redevelop General Permit Other
Additional Project Requirements (check applicable blanks):
CAMA Major X Sedimentation/Erosion Control X. 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 shall be treated in three stormwater ponds sized to achieve 90% of total suspended solids
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
3. Total Project Area: 58 ac acres.
4. Project Built Upon Area: 70 %.
5. How many drainage areas does the project have? 3
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach and 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
(SEE ATTACHMENT)
Receiving Stream Class
Drainage Area
Existing Impervious*Area
Proposed Impervious* Area
% Impervious* Area (Total)
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -Site Buildings
(SEE ATTACHMENT)
On -Site Streets
On -Site Parking
On -Site Sidewalks
Other On -Site
Off Site
Total:
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

Cape Fear Community College
Revised Drainage Areas
February 28, 2002
(Revised 8/20/02)
Basin Inibrmation
drainage Area 1
Drainage Area 2
Drainage Area 3
Receiving Stream
Unnamed Trib to
Unnamed Trib to
Unnamed Trib to
Name
Prince George
Prince George
Prince George
Creek
Creek
Creek
Receiving Stream
C Sw
C Sw
C Sw
Class
Drainage Area
41.60 ac
9.20 ac
41.90 ac
Existing
-0-
-0-
-0-
Impervious Area
Proposed
29.12 ac
6.44 ac
29.33 ac
Impervious Area
% Impervious
6 %
6 %
12 %
Area(Current)
% Impervious
70 %
70 %
70 %
Area Future
Impervious Surface Area
Drainage Area 1
Drainage Area 2
Drainage Area 3
On-sIte Bugdhgs
0.72 ac
-0-
0.71 ac
On -site Streets
0.27 ac
0.55 ac
0.80 ac
On -site Parking
2.09 ac
1.32 ac
1.94 ac
On -site Sldewwalks
0.51 ac
-0-
0.53 ac
Tennis Courts & Walk
-0-
-0-
1.06 ac
Subtotal
3.59 ac
0.55 sc
5.04 ac
Other on -site
Rest of Site is assumed
70% impervious
25.53 ac
4.02 ac
24.29 ac
-site
-0-
-0-
-0-
Total:
29.12 ac
6.44 ac
29.33 ac
RECEIVED
AUG 21 2002
PROD # �����-` Z J

7. How was the off -site impervious area listed above derived? N/A
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, out parcels, and future development prior to :he 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.
The following covenants are intended to ensure ongoing compliance with state stormwater management
permit number as issued by the Division of Water Quality. These covenants may not
be changed or deleted without the consent of the State.
2. No more than square feet of lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but not include
wood decking or the water surface of swimming 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 stormwater management permit
modification prior to construction.
5. Allpermitted runoff from the 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 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 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 3.99 Page 3 of 4

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.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form AN4-
• One copy of the applicable Supplement Form(s) for each BMP 1ARkP ''a
• Permit application processing fee of $420 (payable to NCDENR) ft\ Iwo
• 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)
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): W. K. Dickson & Co., Inc., % Mark Hargrove
Mailing Address: 909 Market Street
City Wilmington
Phone: [phone]
State: NC
VII1. APPLICANT'S CERTIFICATION
Zip: 28401
Fax: [phone]
I, (print or type name of person listed in General Information, Item 2) Dr. Eric McKeithan, President of CFCC ,
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 lI be re orde and that the proposed project complies with the requirements of 15A
NCAC 2H.1000.
Signature://'4'�ate: Zd Q
Form SWU-101 Version 3.99 Page 4 of 4

WKD# 90148.80
Permit No. � tv qX 2k `7 2,5
(to be provided by DW.0
State of North Carolina Revised 12/22/99
Departrnent of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application fo'rni, 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:
Cape Fear Community College
Contact Person: Mark N . Hargrove, P.E. Phone Number: f 910 ) 762-4200
For projects with multiple basins, specify which basin this worksheet applies to: eend No. 3
elevations r-
Basin Bottom Elevation .19.50
ft.
Permanent Pool Elevation 25.nn ft.
Temporary Pool Elevation 7h _?Q ft.
areas
Permanent Pool Surface Area 82,208 sq. ft.
Drainage Area 41.90 ac.
Impervious Area 29.33 ac.
volumes
Permanent Pool Volume 26Q-854 ® cii. ft.
Temporary Pool Volume 104.353 cu. ft.
Forebay Volume 61.919 V cu. ft.
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
4.76
2--3" orifices
1 in.
90 %
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off site drainage to the basin)
(combined volume of main basin and forebay)
(volume detained above the permanent pool)
(approximately 20% of total volume)
(surface area to drainage area ratio from DWO table)
(2 to 5 day temporary pool draw -down required)
(minimum 85% required)
Form SWU-102 Rev 3.99 page 1 of 4

Fdotnoies:
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.
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BW manual provides design tables for both 85% TSS removal and 90% TSS removal.
U. REQUIRED ITEMS CBECKLIST
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.
Applicants Initials
ir1 No a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
Ativi b. The forebay volume is approximately equal to 20% of the basin volume.&f e4Iove °A,
04 c. The temporary pool controls runoff from the design storm event.
,0AN d. The temporary pool draws down in 2 to 5 days.
/1F e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
A FJA f. The basin length to width'ratio is greater than 3:1.
Id N!% 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),
ANVA i. Vegetative cover above the permanent pool elevation is specified.
0PJAL 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.
Awk 1. If the basin is used for sediment and erosion control during construction, clean out of the
MON-
basin is specified prior to use as a wet detention basin.
m. A mechanism is specified )vh'ch will drain the basin for maintenance or an emergency.
PaJ w sif be pviwPvW ®tui-x,
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) 0 does Q(does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does $Aoes not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

.P
V- 4
Revised 12/22/99
Maintenance activities shall be performed as follows:
1. 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 good 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 ac umulated sediments.
When the permanent pool depth reads 4.13 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 3- feet in the forebaY , the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 25.00
Sediment Re oval El. 22.00 7.5
-------- ---- - Sediment Removal Elevation 20.87
Bottom Ele ation 21 00---------------------------------------------125%
75%
Bottom Elevation 19.50 ®
FOREBAY 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: 5-1c B. MNait�i i
Title:
Address: 411 %Ith FrMt Street W!IffflMtcn, I C 23V
Phone: [phone] ,
�C
Date: of
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.
" -P �/
I, ;A- !' S , a Notary Public for the State of Ot /L( P D mtf ,
County of !t BVer do hereby certify that ,1� f-i L
�..,
personally appeared before me this day of /�/yl�C�" , �, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
e
J
'
r�
..
SEAL
My commission expires � -'® 6.01
10,
Form SWU-102 Rev 3.99 Page 4 of 4

WK
DICKSO
N
Engineers . Planners • Surveyors
Landscape Architects
August 20, 2002
Ms. Linda Lewis
NCDENR
Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
AUG. 2002
Re: NCDWQ Project No. SW8 990923
Cape Fear Community College - North Campus
New Hanover County
WKD #20374.00.WE
Dear Ms. Lewis:
The Cape Fear Community College has decided to construct a temporary gravel parking lot
to handle overflow parking and provide parking for construction vehicles at the north
campus site. The plans are being submitted as a modification to the existing permit.
Runoff from the gravel parking lot will be conveyed to detention basins No. 1 and No. 2.
Please see the provided application for a break down of the different impervious areas.
Attached are an original and one copy of the permit application along with the following
supporting documents:
• Two (2) Sets of Plans
• Check for $420.00 for modification fee
• Site vicinity map showing location of temporary parking lot.
Please call if you have questions or need additional information.
Sincerely,
W. K. DICKSON & CO., INC.
Mark N. Hargrove, P.E.
Encl.: As noted
cc: Jack ClaywelI - Boney Architects
Carl Brown - CFCC
909 Market Street
Wilmington, North Carolina 28401 Other Offices: Charlotte, NC
910.762.4200 Asheville, NC Columbia, SC
Fax [phone] Atlanta, GA Hickory, NC
www.wkdickson.com Boca Raton, FL Raleigh, NC

Cape Fear Community College
Revised Drainage Areas
February 28, 2002
(Revised 7/1 /02)
RECEIVED
JUL 0 2 2002
DWQ
PROD # �wg / qZ 3 YvO
Basin Information
Drainage Areal
Drainage Area 2
Drainage Area 3
Receiving Stream
Unnamed Trib to
Unnamed Trib to
Unnamed Trib to
Name
Prince George
Prince George
Prince George
Creek
Creek
Creek
Receiving Stream
C Sw
C Sw
C Sw
Class
Drainage Area
41.60 ac
9.20 ac
41.90 ac
Existing
-0-
-0-
-0-
Impervious Area
Proposed
29.12 ac
6.44 ac
29.33 ac
Impervious Area
% Impervious
6 %
6 %
12 %
Area (Current)
%' Impervious J-70
%
70 %
70 %
Area (Future)
Impervious Surface Area
Drainage Area 1
Drainage Area 2
Drainage Area 3
On -site Buildings
0.72 ac
-0-
0.71
On -site Streets
0.27 ac
0.55 ac
0.80 ac
On -site Parking
1.77 ac
-0-
1.94 ac
On -site Sidewalks
0.51
- 0 -
0.53
Tennis ^ebrts & Walk
- 0 -
-0-
1.06 ac
Subtotal
3.27 ac
0.55 ac
5.04 ac
Other on -site
Rest of Site is assumed
70% impervious
25.85 ac
5.89 ac
24.29 ac
Off -site
-0-
-0-
-0-
Total:
29.12 ac
6.44 ac
29.33 ac
SEAL
1 742
�+NIIIIFf.If!!!1!

WK
DICKS
ON
Engineers • Planners • Surveyors
Landscape Architects
July 1, 2002
Ms. Linda Lewis
N. C. Department of Environment and Natural Resources
Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
RE: NCDWQ Project No. SW8 990923
Cape Fear Community College - North Campus
New Hanover Countv
WKD Project Number 10483.00.WL
Dear Ms. Lewis:
Per you fax I have modified the "Drainage Area Calculation Sheet". The total impervious
area will remain 29.12 acres for Drainage Area No. 1. The "Other on -site" BUA has been
changed to 25.85 acres.
Attached are two copies of the revised drainage area calculation sheet.
Please call if you have questions or need additional information.
Sincerely,
W. K. Dickson & Co., Inc.
AJ'N' A*Z-�
Mark H. Hargrove, P.E.
Enclosure: As noted
909 Market Street
Wilmington, North Carolina 28401 Other Offices: Charlotte, NC
910.762.4200 Asheville, NC Columbia, SC
Fax [phone] Atlanta, GA Hickory, NC
www.wkdickson.com Boca Raton, FL Raleigh, NC

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P. 1
* * * COMMUNICATION RESULT REPORT ( JUN.20.2002
FILE MODE OPTION
365 MEMORY TX
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
WAr
]late: .tune 20, 2002
To: Marls Hargrove, F.E.
Company: WK Dickson
FAX #: [phone]
ADDRESS (GROUP)
-- --------- ----
9-7624201
8:54AM )
TTI
RESULT
-----------
OK
NCDENR WIRO
PAGE
--------------
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
Michael F. Easley, GoVemor
North Carolina Deparkment of Environmlent a d Naturalrl a Secretary
Alan W. Klimek PA. Director
Division R Water Quality
Wilmington Regional Office
FAX COVER, SHEET
No. of Pages:.&
From: Linda Lewis
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
DWQ Stormwater Project Number: SW8 990923
Project Name: CFCC Flue Clay Road Campus
ME, sSAGE:
Dear Marl:
For Drainage Area No. 1, based on the BUA's provided, I get a total proposed DUA of 29, 84,
which exceeds the permitted amount by 0.72 acres. Please either reduce the ''Other On -Site BUA
a@70%" to 25.85 acres, or submit a complete modification far Pond 1,
Y« ..«.1M &- t-1- 7---- 3-- -T- . r 11 . . ... . -

Date: June 20, 2002
To: Mark Hargrove, P.E.
Company: WK Dickson
FAX #: [phone]
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek P.E., Director
Division of Water Quality
Wilmington Regional Office
FAX COVER SHEET
No. of Pages: ks
From: Linda Lewis
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
DWQ Stormwater Project Number: SW8 990923
Project Name: CFCC Blue Clay Road Campus
MESSAGE:
Dear Mark:
For Drainage Area No. 1, based on the BUA's provided, I get a total proposed BUA of 29.84,
which exceeds the permitted amount by 0.72 acres. Please either reduce the "Other On -Site BUA
@70%" to 25.85 acres, or submit a complete modification for Pond 1.
In order to help keep track of what is permitted, please add another row underneath "Tennis
Court & Walk" that shows the subtotal of the permitted BUA to date.
The original permit issued on January 28, 2000, did not show any buildings as part of the
drainage area. Now, Ponds 1 and 3 are proposed with buildings. It appears that this was an error
by the original permit writer. I will be rewriting the permit to account for this error.
S:\WQS\STORMWATIADDINFO\2002\990923.JUN
44A,
6 r,
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

May
Cape Fear Community College
Revised Drainage Areas
February 28, 2002
Basin Information
Drainage Area 1
Drainage Area 2
Drainage Area 3
Receiving Stream
Unnamed Trib to
Unnamed Trib to
Unnamed Trib to
Name
Prince George
Prince George
Prince George
Creek
Creek
Creek
Receiving Stream
C Sw
C Sw
C Sw
Class
Drainage Area
41.60 ac
9.20 ac
41.90 ac
Existing
-0-
-0-
-0-
Impervious Area
Proposed
29.11Z ac
6.44 ac
29.33 ac .
Impervious Area
% Impervious
6 %
6 %
12 %
Area (Current)
% Impervious
70 %
70 %
70 %
Area (Future)
Impervious Surface Area
On -site Buildings
Drainage Area 1
0.72 ac
Drainage Area 2
-0-
Drainage; Area 3
0.71
On -site Streets
0.27 ac
0.55 ac
0.80 ac
On -site Parking
1.77 ac
-0-
1.94 ac
On -site Sidewalks
0.51
-0-
0.53
Tennis Courts & Walk
-0-
- 0 -
1.06 ac
`e
=Z
.55 vr--
,0 2c
Pest of Site is assumed
70%e impervious
26.57Ic
25.85
5.89 ac
24.29 ac
Off -site
-0-
-0-
Total:
29-42 ac
6.44 ac
29.33 ac
Z4. 0 q-
eeee9
tH Q PP
O ,e
�y /A �r
��EESSJ0 1; s % ..:
.SEAL
RECEIVED
MAR 0 5 2002
nwQ
PROJ # SW 8 9'gU4'Z3 l;r,v.

WK
DICKSON
Engineers -Planners -Surveyors
Landscape Architects
March 1, 2002
Ms. Linda Lewis
N. C. Department of Environment and Natural Resources
Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
RE: NCDWQ Project No SW8 990 223
Cape Fear Community Co ege - North Campus
New Hanover County
WKD Project Number 10483.00.WL
Dear Ms. Lewis:
Cape Fear Community College has decided to construct six tennis courts and a soccer field
on the North Campus located off of Blue Clay Road. The previous permit allocated for each
drainage area to be 70 percent impervious. The tennis courts and some sidewalk amount to
1.06 acre which drains into drainage area Number 3 and 0.05 acre of walkway to the
proposed soccer field which drains into drainage area Number 1. The additional impervious
area into each of the drainage areas does not exceed the percent of impervious area total of
70 percent. Please see the provided application for a breakdown of the different impervious
areas.
Attached is one copy of the permit application along with the following supporting
documents:
• One (1) Sets of Plans with revised drainage area sheet showing imperviousness
breakdown
Please call if you have questions or need additional information.
Sincerely,
W. K. Dickson & Co., Inc.
IA".
4ft�__
Mark H. Hargrove, P.E.
/pb
Enclosure: As noted
cc: Boney Architects
909 Market Street
Wilmington, North Carolina 28401
Other Offices:
Charlotte, NC
910.762.4200
Asheville, NC
Columbia, SC
Fax [phone]
Atlanta, GA
Hickory, NC
www.wkdickson.com
Boca Raton, FL
Raleigh, NC