SW7070201_CURRENT PERMIT_20070327

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE7D�
YYYYM M D D

�G
-1
Y
1 o1 R0
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
March 27, 2007
Alan W. Klimek, P.E. Director
Division of Water Quality
Mr. Eric S. Zorn, Executive Vice President
Attn: Mark S. Goldsmith, Director of Stormwater Compliance
Wal-Mart Stores East, LP
1001 SE 10" St., Dept. 44-9635 ,
Bentonville, AR 72716-0550 �+ 5�c �`� N ,{ 5�: I f
Subject: Stormwater Permit No. SW7070201
Wal-Mart Store #1950-03
High Density Project
Hertford County
Dear Mr. Zorn:
The Washington Regional Office received a complete Stormwater Management Permit
Application for Wal-Mart Store #1950-03 on March 19, 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. SW7070201 dated March 27, 2007, for the construction of the subject
project.
This permit shall be effective from the date of issuance until March 27, 2017, and shall
be subject to the conditions and limitations as specified therein. Please pay special
attention to the Operation and Maintenance requirements in this permit. Failure to
establish an adequate system for operation and maintenance of the stormwater
management system will result in future compliance problems.
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 Scott Vinson, or me at [phone].
Regional Supervisor
Surface Water Protection Section
AH/sav: C:\STORMWATER\PERMIT\SW7070201
cc: James R. Freeland, PE Freeland & Kauffman, Inc.
Oertford County Building Inspections
,,-,Washington Regional Office
Central Files
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone] Customer Service
Internet: www ncwateroualitv.ore 943 Washine on Square Mall, Washington, NC 27889 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% RecycledAO% Post Consumer Paper
"
rCaro
urni

State Stormwater Management Systems
Permit No. SW7070201
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
Wal-Mart Stores East, LP
Wal-Mart Store #1950-03
Hertford County
FOR THE
construction, operation and maintenance of two wet detention basin systems in
compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the
"stormwater rules') and the approved stormwater management plans and specifications
and other supporting data as attached and on file with and approved by the Division of
Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until March 27, 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.
2. 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 9.62 acres of impervious
area to the East Pond and 11.14 acres of impervious area to the West Pond,
3. The tract will be limited to the 20.76 acres of built -upon area within the total
project area of 28.18 acres as indicated on the application 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.
5. The runoff from all built -upon area within the permitted drainage areas of this
project must be directed into the permitted stormwater control systems per
approved plans.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW7070201
6. The following design criteria have been provided in the wet detention basins and
must be maintained at design condition:
D.A. #1 D.A. #2
East Pond West Pond
a.
Drainage Area, acres:
11.31
13.09
b.
Total Impervious Surfaces, ac:
9.62
11.14
C.
Design Storm, inches:
1.0
1.0
d.
Pond Depth, feet:
4.50
4.50
e.
TSS removal efficiency:
90%
90%
f.
Permanent Pool Elevation, FMSL:
38.00
38.00
g.
Permanent Pool Surface Area, ftZ:
34,774
39,594
h.
Temporary Storage Elevation, FMSL:
38.93
38.95
i.
Temporary Storage Volume, ft3:
33,916
38,953
j.
Controlling Orifice:
3.0" � pipe
3.0" � pipe
k.
Receiving Stream/River Basin:
Ahoskie Creek /
Chowan
I.
Stream Index Number:
25-14-1
M.
Classification of Water Body:
"C; NSW'
II. SCHEDULE OF COMPLIANCE
1. The stormwater management systems 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.
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.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW7070201
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.
1.1. 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.
13. This permit shall be effective from the date of issuance until March 27, 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.
14. The four (4) Outlots must submit a separate Stormwater Management Permit Off -
Site application package to the Division of Water Quality and receive a permit
prior to any construction of built upon area on the lot. If the property is sold, the
Page 4 of 7

State Stormwater Management Systems
Permit No. SW7070201
new owner(s) shall be rioted of this permit condition and the name and address
of the new owner(s) shall be forwarded to the Washington Regional Office's
Division of Water Quality within 30 days of sale of property.
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.
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) 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 of any name, ownership or mailing
address changes within 30 days.
Permit issued this the 27th day of March, 2007.
N RTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
an . Klime , P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7070201
Page 5 of 7

State Stormwater Management Systems
Permit No. SW7070201
Page 1 of 2
Wal-Mart Store #1950-03
Stormwater Permit No. SW7070201
Hertford 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 6 of 7

State Stormwater Management Systems
Permit No. SW7070201
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. 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
and set at the approved elevations.
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 Regional Office
Hertford County Building Inspections
Page 7 of 7

OFFICE USE ONLY
Daie Received
Fee Paid
Permit Number(s)
a-
%veo State of North Carolina SWAct,' a/6107
Hec Department of Environment and Natural Resources
F�6 6 2001 Division of Water Quality 401/ Wetlands Unit Drti,o tW
EXPRE $-REVIEW PROGRAM SFORMWATER MANAGGMENI' APPLICATION FORM �
UNQI CC(( This form may be photocopied for use, as an original
1. GENERAL INFORMATION
I. Applicant's name (specify the name of the corporation, individual, etc. who owns the project):
WA[.-AMAT STi5a 55 EAST LP
2. Owner/Signing Official's name and title (person legally responsible for facility and compliance):
NAek-, 5.4o4-6S&//w/CPr'sc D:/totero>rSlant./tea�r.-��knK
3. Owner Mailing Address for person listed in item 2 above:
1,461 Se /D'11 Sr s S
City: &AmNviz CC Statc: /L4� Zip:-217/4 zt_ -ce
Phone Number: ( y17f // Fax Number:_( Email Address: A1Ar/e.ga(a�tw//,
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
L.J A[ -IrM AT
5. Location of Project (street address):
STORE 0
G ��,n 1 tiY
City: AlioslirE County: 1AFgrFo1?0 1",Qlk 6da/� n
6. Directions to project (frorn nearest major intersection):
ZOC.4 r-00 ., TNE' SourN wgSr --,roc of /-A y 13 (FAST OItU—d AP?Rot,
$Oo-FT sour/1EA5T of rNL- ruT6jx5E[T Zr w/ .yc-M,."Y ssl
7. Latitude: /U 3401b' /7" Longitude:
W 7e ° SC' 12 "
8. Contact person who can answer questions about the project:
/71-TkE RANKS
of project
Telephone Number. (may ) 672- 3yy/
Fax Number: 90- Z33 - 89l S Email Address : tr7/{A.UkS & F1+.T.uE , coot
IL PERMIT INFORMATION:
1. Specify whether project is (check one): A New Renewal Modificalion
9/2004 Version 1.0 Page 1 of 4

i-(; p cif,
,.1

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 _&I-Iigh Density Redevelopment General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major i( Sedimentation/Erosion Control 404/401 Permit _NPDES Stormwater _Other
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, surnmarize how storrnwater will be treated. Also attach a detailed narrative
(one to two pages) describing storrnwater management for the project .
ir`/E STORmwa TER Fort rwcj'T-Lvcu of !?amo FF "Friur'FCusr+"- /d Z&V,< W..
THE 2� lD 29 $/00- YEF/Z .5MIZ I EUE1V7S WZCL Be Rou7-Co 7N/1Uu614
To S,Fp ERAiF_ DETENTtUN PONDS
2. Stormwater runoff from this project drains to the
3. Total Project Area: 2 g• IS
G l40WAAJ
5. I -low many drainage areas does the project have? 5-
River basin.
4. Project Built Upon Area: 94i %
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheetwith the information for each area provided in the same format as below.
EfjST PoNp
CaJ C- S r PONry
Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Narne
ANUSISS SRC-EIt
AgoSk.tL LRFEI(
Receiving Stream Class
«ASS
�'21A5S C
Drainage Area
11.31 Ac.
13.o9 Ac.
Exist ing Impervious* Area
0.29 Ac,
0 Ae.
Proposed Irnpervious"Area
C1.07 AL.
l I. I Lt Ae.
`% Impervious* Area (total)
gS%
8S%
Impervious' Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings
c- .,q "f Ac.
3. It fl•C. t•t*.--}
On -site Streets
1 2 1 A.
1 ct AC
On -site Parking
3.31 Ac.
5.63 Ac.
On -site Sidewalks
0.)l Ac.
0.11 Ae,
Other on -site
—
O.-M
Off -site
XAWa t3 D, $S AC
Total: Q 6 2 A
Total ( 1. I y 14c,
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
9/2004 Version 1.0 Page 2 of 4

I

Basin Information Cont
Basin Information
Drainage Area A3 (Direct
Discharge)
Drainage Area B (Direct
Discharge)
Drainage Area D (Direct
Discharge)
Receiving Stream Name
Ahoskie Creek
Ahoskie Creek
Ahoskie Creek
Receiving Steam Class
Class C
Class C
Class C
Drainage Area
2.04 Acres
1.35 Acres
0.39 Acres
Existing Impervious Area
0.16 Acres
0 Acres
0 Acres
Proposed Impervious
Area
0 Acres
0 Acres
0 Acres
% Impervious Area (Total)
N/A (No Detention Req'd)
N/A (No Detention Req'd)
N/A (No Detention Req'd)

7. i-tow was the off -site impervious area listed above derived? VERY lr r+rrlo T fi?pA o F
li0po rt/FRo.NT oP Sure,
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.
L The following covenants are intended to ensure ongoing compliance with state riparian buffer authorization or General
Certification numbers�_7 O O O I as issued by the Division of Water Quality. These
covenants may not be changed or deleted without the consent of the State.
n Gi
2. Na more than a c I G sgzecnel_t fezt r f 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 gfswimming pools.
3. Swales .shall not be filled in, piped, or allered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a modified water quality certification prior to construction.
5. All permitted runofffrom 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
crud performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this in
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under thern, that they will run with the land, that the required covenants cannot be changed or deleted
withoutconcur rence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable stormwater management supplement form(s) listed below must be submitted for each 13MP specified
for this project. The forms arc located on the 401/wetlands unit website.
Bioretention Worksheet
Dry Detention Worksheet
Level Spreader Worksheet
Grassed Swale Worksheet
Extended Detention Wetland / Pocket Welland Worksheet
Wet Detention Worksheet
9/2004 Version 1.0 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 DWQ Central Office.
Please indicate that you have provided the following required information by initialing in the space provided
next to each item. Initals
• Original and two copies of the Express Review Stormwater Management Application
• Signed and notarized Operation and Maintenance Agreement _Slgr
• Three copies of the applicable Supplement Form(s) for each BMP _57{F
• Application processing fee (payable to NCDENR) M-I;tF
• Detailed narrative description of stormwater treatment/management 5fC1=
• Three copies of plans and specifications, including: SRF
- 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 and streams delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoffcalculations
- 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): FEEZ WD 8 M FF,-7A.V X U6
Mailing Address: .201 &Jesr 3TovE A�F.vuP
City: C AtFE1v UzIL
Phone: ( T6'f ) 233 -5197
VIII. APPLICANT'S CERTIFICATION
State: Sr- "Zip: 29609
Faixx ( 86`1' ) 233 -89 15
1, (print or type name of person listed in General Information, item 2) 17?AA� GoL D$MYj'N
certify that the information included on this 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 211 .1000
Date: l // 4 %
9/2004 Version 1.0 Page 4 of 4

Permit No. '�) 0 r)07 0v201
(to he provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT EA57- Pal-jt>
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwaler management plan submittal includes an application form�a wet detention basin
supplement for each basin, design calculations, and plans and specificationsrshRow,ingCall�bhas nland outlet
structure details.
hiAR 19 2007
I. PROJECT INFORMATION
Project Name: GUAi -m aRT ff /95o - o9 ,14AbsIfIF , NC DWU- ARO
Contact Person: sir)fF RANIrS Phone Number: (86y ) d 72 • 3'/9/
For projects with multiple basins, specify which basin this worksheet applies to: 6�457' /R D
elevations
Basin Bottom Elevation
32.5
fi.
(floor of the basin)
Permanent Pool Elevation
38.0
ft.
(elevation ofthe orifice),
t
Temporary Pool Elevation
39.93
fi.
(elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area
3(/77y
sq. ft.
(water surface area at the orifice elevation)
Drainage Area
1)' 3 1
ac.
(on -site and off -site drainage to the basin)
Impervious Area
9.12
ac.
(on -site and off site drainage to the basin)
volumes
Permanent Pool Volume
l35 070
cu. f).
(combined volume of main basin and jorebay)
Temporary Pool Volume
33916
cu. ft.
(volume detained above the permanent pool)
Forebay Volume
2 7217
cu. ft.
(approximately 20% oftotal volume)
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
7.05
3.0 in.
1 in.
`70 % %
(surface area to drainage area ratio from DWQ table)
(2 to 5 day temporary pool draw -down required)
(minimum 85% required)
Form SWU-102 Rev 3.99 Palle I of 4

a
Footnotes:
' When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious %Y 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 NCDI-NR 13MP manual provides design tables for both 85% TSS removal and 90% TSS removal.
11. 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 211 .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
51� F
a.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
57tF
b.
The forebay volume is approximately equal to 20% of the basin volume.
c.
The temporary pool controls runoff from the design stornr event.
SR I`
d.
The temporary pool draws down in 2 to 5 days.
5R F
e.
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
'SR F
f.
The basin length to width ratio is greater than 3:1.
T!z F
g.
The basin side slopes above the permanent pool are no steeper than 3:1.
5RF
h.
A submerged and vegetated perimeter shell'with a slope of 6:1 or less (show detail).
SR R
i.
Vegetative cover above the permanent pool elevation is specified.
S1ZF
j.
A trash rack or similar device is provided for both the overflow and orifice.
5 R F
k.
A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
SIZE
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.
3,7Z F In. A mechanism is specified which will drain the basin for maintenance or an emergency.
Ill. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including lorebays and the
vegetated filter if one is provided.
This system (check one) 0 does ,does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of

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 175 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 hlanky)
� Permanent Pool Elevation 38•�
Sediment Ren oval EI. 3.$ 75' ��
Sediment Removal Elevation 3% 2u� 75 /"
Bolcom Elc ation�---� "/�--------------------------------- --o-
Bouom Elcvution 33 25%
FORF,BAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of

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: M4a4e S. GbL,DS/nin4• GPE•Se--
Title: I) i /-Ge for- c4r 'Sd vrp, LJwf� ,��• a e�
Address: Ser !4)1�1` �±�<. 'W-'JG3S �{,anu•'lii A� 7Z JAG"�So
Phone: 111,r
Signature:_ _ zl�OVlyell
Date: / —// — U 7
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, l LS7 'l t , P. , a Notary Public for the State of a 2kf1 N s A S
County of Fat mto do hereby certify that kAgyzk S.
personally appeared before me this r L6 day of-TG NLAQ 5 , 2pp7 , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
OFFICIAL SEAL
TERRIE R. ZORNES
NOTARY PUBLIC-ARKANSA
BENTON COUNTY
MY COMMISSION EXPIRES: 02- 8-13
SEAL /�
My commission expire/C,.���
Form SWU-102 Rev 3.99 Page 4 of

Pcrmit No. �-GJ7o?od o
(m be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
A� 19 20, fTORMWATER MANAGEMENT PERMIT APPLICATION FORM
M DWQ T DETENTION BASIN SUPPLEMENT - WE S T povo
This form may be photocopied for use as an original
VMnn�-#
II 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.
PROJECT INFORMATION
Project Name: /✓TART # l9 SO -o.3 flHos/rrE , IV 6
Contact Person: InX)E
/IA,JlrS
Phone Number: (94,? 672 3 9/
For projects with multiple basins,
specify which basin
this workshect applies to: NVEST Pol/D
elevations
Basin Bottom Elevation
32.5
It.
(floor of the hasin)
AV
Permanent Pool Elevation
38.0
It.
(elevation of the orifice)
l
Temporary Pool Elevation
3 s. 9 5
ft.
(elevation of the discharge structure overflow)
r
areas
Permanent Pool Surface Area
39 599
sq. ft.
(water surface area at the orifice elevation)
Drainage Area
13• cl
ac.
(on -site and gfsite drainage to the basin)
Impervious Area
11• I Ll
ac.
(on -site and off site drainage to the basin)
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA I
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
/61 802 cu. ft. (combined volume ofmain basin and.forebay)
3895 3 cu. ft. (volume detained above the permanent pooh
4t191.3 cu. ft. (approximately 20%oftotal volume)
6. 9 (surface area to drainage area ratio from DWQ table)
3.0 in. (2 to 5 day temporary pool draw -down required)
in.
`l0% (minimum 85% required)
Form SWU-102 Rev 3.99 Page I of 4

Footnotes:
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 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 2I-I .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
5-RF a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
5RI` b. The forebay volume is approximately equal to 20% of the basin volume.
SRF c. The temporary pool controls runoff from the design storm event.
F d. The temporary pool draws down in 2 to 5 days.
sRF e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
lZ
calculations)
f. The basin length to width ratio is greater than 3:1.
Rf g. The basin side slopes above the permanent pool are no steeper than 3:1.
7S;"RF h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
F i. Vegetative cover above the permanent pool elevation is specified.
S-RF j. A trash rack or similar device is provided for both the overflow and orifice.
_572f' k. A recorded drainage casement is provided for each basin including access to nearest right-
of-way.
RF 1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
�R F in. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does )does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does ,'does not incorporate pretreatment other than a furebay.
Form SWU-102 Rev 3.99 Page 2 of

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.
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 -1 %S 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
Ull in the hlankv)
V Permanent Pool Elevation 38.0
Sediment Re oval El. 35 75
--------- Sediment Removal Elevation .34- 2-5-75%
Bottom L anon .3`7l % ------------------------------
Bottom Elevation 33 - zs i�
FORERAY 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 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. f agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: 1%4RL' S• ��d< V SMiih�j ���SG
Title: bfrez ,<er 4 :5hrll liJIFGr ��l�,o/.iapfe
Address:1Do/ SE AtKS- ATA -19-fw � 7.271.,:-�So
Date: / // - 4!�5
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, Tf?-1 E 7 ZolZh-) e,S a Notary Public for the State of R 12-k N Sa 5
County of = l- HJ-p , do hereby certify that H ko< S .
personally appeared before me this 11 +!5, day of-:Tg N tAgpq , aco7 , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
OFFICIAL SEAL
TERRIE R. ZORNES
NOTARY PUBLIC-ARKANSAS
BENTON COUNTY
MY COMMISSION EXPIRES: 02-18- 3
SEAL �J
My commission expires
Form SWU-102 Rev 3.99 Page 4 of