SW7070418_CURRENT PERMIT_20070507

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD
9

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
May 7, 2007
Mr. J. Michael Harrell, President
Harrell Enterprises, Inc.
PO Box 688
Ahoskie, NC 27910
Subject: Permit No. SW7070418
Duck Through Food Store #26
High Density Stormwater Project
Bertie County
Dear Mr. Harrell:
The Washington Regional Office received a complete Stormwater Management Permit
Application for Duck Through Food Store #26 on April 25, 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.
SW7070418 dated May 7, 2007, for the construction of the subject project.
This permit shall be effective from the date of issuance until May 7, 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 and in the submitted application.
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 150E 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 either Scott Vinson, or me at [phone].
Sincerely,
1
Al Hodge
Regional Supervisor
Surface Water Protection Section
AH/sav: C:\STORMWATER\PERMIT\SW7070418
cc: James N. Galloway
Bertie County Building Inspections
Washington Regional Office
Central Files
None Carolina
Mural!
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone] Customer Service
Internet www.ncwacereualitv.ore 943 Washington Square Mail, Washington, NC 27889 1-877-623-6748
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State Stormwater Management Systems
Permit No. SV 7070418
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
Harrell Enterprises, Inc.
Duck Through Food Store #26
Bertie County
FOR THE
construction, operation and maintenance of a wet detention basin 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 May 7, 2017, 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.
This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.6 on page 3 of this permit. The stormwater controls have been
designed to handle the runoff from 2.73 acres of impervious area.
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 and 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.
5. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit. The runoff from all built -upon area within the permitted
drainage areas of this project must be directed into the permitted stormwater control
system.
Page 2 of 7

State Stormwater Management Systems
Permit No. SV 7070418
91
The following design criteria have been provided in the wet detention basin and must be
maintained at design condition:
a. Drainage Area, acres:
b. Total Impervious Surfaces, acres:
C. Design Storm, inches:
d. Pond Depth, feet:
e. TSS removal efficiency:
f. Permanent Pool Elevation, FMSL:
g. Permanent Pool Surface Area, ft2:
In. Permanent Storage Volume, ft3:
i. Permitted Forebay Volume, ft3:
j. Temporary Storage Elevation, FMSL:
k. Temporary Storage Volume, ft3:
I. Controlling Orifice:
M. Receiving Stream/River Basin:
n. Stream Index Number:
o. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
2.73
3:91
1.0
4.00
90%
68.00
13,284
42,288
12,188
69.00
14,781
1.50" � pipe
UT Indian Creek / Roanoke
23 - 47
„C"
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 Plans 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 bypass structure, filter media, flow spreader,
catch basins, piping and vegetated filter.
g. A clear access path to the bypass 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.
e
Page 3 of 7

State Stormwater Management Systems
Permit No. SW7070418
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 for a minimum of ten years from the date of the completion of construction.
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.
18. This permit shall be effective from the date of issuance until May 7, 2017. 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 4 of 7

State Stormwater Management Systems
Permit No. SV 7070418
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.
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.
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 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. A copy of the approved plans and specifications shall be
maintained on file by the Permittee for a minimum of ten years from the date of the
completion of construction.
9. The permittee shall notify the Division any name, ownership or mailing address changes
within 30 days.
Permit issued this the 7th day of May, 2007.
\,L
CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7070418
Page 5 of 7

State Stormwater Management Systems
Permit No. SW7070418
Stormwater Permit No. SVV7070418
Bertie Countv
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 6 of 7

State Stormwater Management Systems
Permit No. SW7070418
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 bypass structure elevations are per the approved plan.
6. The bypass structure is located per the approved plans.
7. A 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. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Bertie County Building Inspections
Page 7 of 7

Stafe Stormwater Management Systems
Permit No. SV 7070418
Stormwater Permit No. SV 7070418
Bertie County
Designer's Certification
JAN 15 2008
0���, U- An ALIR®
I, Thomas W. Harwell , as a duly registered Engineer in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the
construction of the project,
DUCK THROUGH FOOD STORE # 26
(Project)
for a. Michael Harrell (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 _ 4836
Date
SEAL
Page 6 of 7

t
,'S, _State-Stormwater Management Systems
_..._ _._._.
Permit No. SW7070418
Certification
Requirements:
X I.
The drainage area to the system contains approximately the permitted acreage.
_x_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.
x 4.
All roof drains are located such that the runoff is directed into the system.
xx 5.
The bypass structure elevations are per the approved plan.
x 6.
The bypass structure is located per the approved plans.
x 7.
A Trash Rack is provided on the outlet/bypass structure.
* 8.
All slopes are grassed with permanent vegetation.
X 9.
Vegetated slopes are no steeper than 3:1.
XX 10.
The inlets are located per the approved plans and do not cause short-circuiting of
the system.
x 11.
The permitted amounts of surface area and/or volume have been provided.
x 12.
All required design depths are provided.
x 13.
All required parts of the system are provided.
X 14.
The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Bertie County Building Inspections
* 8. All slopes are seeded and mulched. Grass seed has not germinated because
of extream drought conditions.
First rain / moisture on 11/14/07. Very little water in system at time
of inspection.
Page 7 of 7

., -tee, .
r
..� r ..

OFFICE USE ONLY
Dalee�Rc—eived Fm Paid Permit Num cr
i'"`0� sW.ArjC ►���s�o�
State of North Carolina
Department of Environment and Natural Resources
APR 2 5 2007 Division of Water Quality
1 � r,Jn 11 r_STORMWATER MANAGEMENT PERMIT APPLICATION FORM Q �`
' m UU VV This form may be photocopied for use as an original
I. GENERAL INFORMATION s /Q /4 eo rAae—
1. Applicants name (specify the name of the corporation, individual, etc, who owns the project):
Harrell Enterprises Inc.
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
J. Michael Harrell, President
3. Mailing Address for person listed in item 2 above:
Citv: Ahoskie Slate: NC Zip: 27910
Tclophone Number: ( 252 ) 332-2131
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Duck Through Food Store #26
5. Location of Project (street address):
S/W corner of Intersection of NC 11 and NC 308
City: Lewiston Countv: Bertie
6. Directions to project (from nearest major intersection):
7. Latitude: N3607' 18.9" Longitude: W 77010' 26.511 of project
8. Contact person who can answer questions about the project:
Name: James N. Galloway Telephone Numbcr:( 252 ) 756-8440
II. PERMIT INFORMATION:
1. Specify whether project is (che(:k one): _g_New Renewal Modification
FormSWU-101 Version3.99 Page Iof4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
3. Specify the type of project (check one):
Low Density X High Density Redevelop General Permit 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
I-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 to be routed through a wet detention pond
See Wet Detention Basin Supplement attached
2. Stormwater runoff from this project drains to the Ronoake River basin.
3. Total Project Area: _3 91 acres 4. Project Built Upon Area:_70 %
5. How many drainage areas does the project have7_one-
6. 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 I
Drainage Area 2
Receiving Stream Name
Jacks Creek u711111 ,-- to
Receiving Stream Class
..-Ny
Drainage Area
3.91 ac
Existing Impervious" Area
0.0
Proposed ImperviousArea
2.73 ac
%Impervious' Area (total)
70%
Impervious Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings
0.11 ac
)-
On -site Streets
On -site Parking
2.62 ac
On -site Sidewalks
Other on -site
Off -site
'fetal: 2.73
Total:
Impervious area is dented as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Fore SWU-101 Version 3.99 Page 2 of

7. How was the off -site impervious area listed above derived? Road ditches and small berm �-}:,--
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 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 any lot 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 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. 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 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

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.
• Original and one copy of the Stm inwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stonmwater 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): ea
Mailing Address: /02 , r
City _�% Pr /Ot State:_N (f Zip: 1 7
Phone: (2 52 ) Z — ��yo Fax ( ZSZ ) '3 5S -; / U6
VIII. APPLICANT'S CERTIFICATION
I. (print or type name of person lislerl in Cenet.al Informalion, item 2) 7 •_Michael_Harx_e_U
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 2H .1000.
Sigmau
Form SWU-101 version 3,99 Page 4 of 4
Date: 4/13/07

Permit No. 5tj,7D7O q ( y'
(to be provided by DLVQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
APR 2 5 2007 STORMWATER MANAGEMENT PERMIT APPLICATION FORM
! �b` Q-VVAR® WET DETENTION BASIN SUPPLEMENT
This form may he photocopied for use as an original
DWO 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: Duck Through Food Store #26
Contact Person: Michael Harrell
Phone Number: ( 25 ) -21 1
For projects with multiple basins, specify which basin this worksheet applies to: one
elevations
Basin Bottom Elevation 64.0 ft. (floor gfthe basin)
Permanent Pool Elevation 68.0 ft. (elevation ofthe orifice)
Temporary Pool Elevation 69.0 ft. (elevation ofthe discharge slrucnu'e overflow)
areas
Permanent Pool Surface Area 13, 284 sq. ft. (water surface area at the orifice elevation)
Drainage Area 3.91 ac. (on -site and all -site drainage to the basin)
Impervious Area 2.73 ac. (on -site and off -.site drainage to the hosin)
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA
Diameter of Orifice
Design Rainfall
Design TSS Removal z
42,288
cu. ft.
(combined volume of main hasin caul f n-eba.0
14,781
cu. ft.
(voltone detained obove the permanent pool)
12,188
cu.tt.
(approximatehv20'Yoo0oialvolume)
6.0 (sm.fitce area to drainq;e area ratio from DIVQ table)
1 1/2 in. (2 to 5 day lemporcuy pool eh -au• -down regnirecl)
1.0 in.
90 % (mininumt 85 (1, required)
Form SWU-102 Rev3.99 Page I of 4

Footnotes:
When using the Division SAIDA tables, the correct SAIDA 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 counties, 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.
The permanent pool depth is between 3 and 6 feet (required mininuun of 3 feet).
The forebay volume is approximately equal to 20%ofthe basin volume.
The temporary pool controls runoff from the design storm event.
The temporary pool draws down in 2 to 5 days.
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.
It. 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.
I. 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.
m. 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) 0 does does not
This system (check are) 0 does does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
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 accumulated sediments.
When the permanent pool depth reads 3.0 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2. 75 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Pennmrent fool Elevation 68.0
Sediment Ken oval EL 65.75 75' 6
----- ii - Sediment Kemoval Elevation 5.0 756,
Bottom Election 65.0 T �_':L ------------------------------- 6-------------- - n
FOREBAY
Bottom Elevation 64.0 j 25'%,
MAIN POND
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

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:
Title: President, Harrell Enterprises Inc.
Address: P. 0. Box 688 , Ahoskie, NC 27910
252-332-2131
Signatrtre
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, James N.
a Notary Public for the State of North Carolina
County of Pitt L. ,.do hereby certify that J. Michael' Harrell
personally appeared before me this 13 day of April 2007 and acknowledge the clue
execution of the forgoing wet detention basin maintenance requirement Witness my hand and official seal,
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FormSWU-102 Rev3.99 Page 4of4