SW8910502_CURRENT PERMIT_20210622

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 Ci 1 n 5 02
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2 0 2 X O U 22
YYYYMMDD

ROY COOPER
Governor
DIONNE DEW-GATTI
Secretary
BRIAN WRENN
Director
June 22, 2021
NORTH CAROLINA
Emdwtmental Quality
Walmart Stores, Inc.
Attn: John Scudder, Senior Vice President
702 SW 81h Street
Bentonville, AR 72716
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 910502
Wahnart Store #1767
Brunswick County
Dear Mr. Scudder
Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality
(DWQ) to the Division of Energy, Mineral and Land Resources (DEMLR). All previous references to DWQ will
remain in older stormwater permits issued prior to August 1, 2013 until they are modified. Please note that this permit
will now reference DEMLR as the Division responsible for issuance of the permit.
The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for
the subject project on June 8, 2021. The Division is hereby notifying you that permit SW8 910502 has been renewed on
June 22, 2021 and shall be effective until June 7, 2029. For your records, please find enclosed a renewed, updated, and
re -issued permit and a copy of the renewal application. As requested, a copy of the current operation and maintenance
agreement is enclosed. Please keep this permit on file at all times. Please note that the renewed, updated, and re -issued
permit does not impose new or different terms; it merely restates some of the previous terms to provide you with a
better understanding of your obligations under the permit.
The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the
terms and conditions of this state stormwater permit. The plans originally approved on July 16, 1991 and most recently
modified May 2, 2013, will remain in full force and effect in accordance with the regulations set forth in Title 15A
NCAC 2H.1000.
This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the
conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed
restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit Failure to establish
an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions,
to transfer.the permit, or to renew the permit, 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 by filing a written petition with the Office of Administrative Hearings (OAH). The written
petition must conform to Chapter 150B of the North Carolina General Statutes and must be filed with the OAH within
thirty (30) days of receipt of this permit. You should contact the OAH with all questions regarding the filing fee (if a
filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or
via telephone at 919431-3000, or visit their website at www.NCOAH.com. Unless such demands are made this permit
shall be final and binding.
If you have any questions, need additional copies of the permit or approved plans, please contact Ashley Smith in the
Wilmington Regional Office, at [phone] or [e-mail].
Sincerely,
Ulio�- "'NA
'VwBrian Wrenn, Director
Division of Energy, Mineral and Land Resources
®Ez �Z� North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
'unm cnourva �/
^m^�ar��r•r..r� 910.796.7215

State Stormwater Permit No. SW8 910502
Page 2 of 2
Enclosures:
DES/ams:
cc:
Attachment C — Permitting History
Renewal Application Documents
\\\Stormwater\Petmits & Projects\ 199 1\910502 HD\2021 06 permit 910502
NCDEQ-DEMLR Wilmington Regional Office
roam ®WI �—� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington. North Carolina 28405
.•r^+®— /01
910.796.7215

State Stormwater Management Systems
Permit No. SW8 910502
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
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, Inc.
Wal-Mart Store #1767-Shallotte
4540 Main Street B 3079, Brunswick County
FOR THE
construction, operation and maintenance of 2 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 Energy, Mineral and Land Resources (the "Division" or "DEMLR") and
considered an enforceable part of this permit.
This permit shall be effective from the date of issuance until June 7, 2029 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 2 of this permit. Pond 1 has been designed to handle the runoff
from 206,100 square feet of impervious area, and Pond 2 is designed to handle the runoff from
382,056 square feet of impervious area. Pond 2 must be operated with a vegetated filter.
3. Approved plans dated June 7, 1999, and November 22, 2004, 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 2 of this permit, and
per approved plans.
5. The .32 acre offsite area is currently undeveloped due to a 40' No Build Zone. No built -upon
area from the offsite area may drain into this pond.
Page 1 of 5

State Stormwater Management Systems
Permit No. SW8 910502
6. The following design criteria have been approved for the proposed wet detention ponds and
must be maintained at design condition:
POND 1 POND 2
a. Drainage Area, acres: 6.15 11.58
Onsite, ft2: 267,833 504,425
Offsite, ft2: 0 0
b. Total Impervious Surfaces, ft2: 206,100 382,056
C. Pond Depth, feet: 7.5 6
d. Design Storm, inches: 1 1
e. TSS removal Efficiency: 90% 85%
f. Permanent Pool Elev., FMSL: 10 11
g. Provided Surface Area, ft2: 11,110 15,605
h. Provided Storage Volume, ft3: 17,520 30,492
i. Temporary Storage Elev., FMSL: 11.43 12.85
j. Forebay Volume, ft3: n/a 9,115
k. Controlling Orifice: 2" cp pipe 2" cp pipe
I. Receiving Stream: Woodward Branch
M. Stream Index Number: LBR59 15-25-2-8
n. Classification of Water Body: "C Sw HQW'
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface 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 the design condition. 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.
h. The vegetated filter will be kept grassed with no erosion. The spreader mechanism will
be kept clear.
Page 2 of 5

State Stormwater Management Systems
Permit No. SW8 910502
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of the Division. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. Decorative spray fountains are allowed in the pond, subject to the following criteria:
a. The minimum permanent pool volume is 30,000 cubic feet.
b. The fountain must draw its water from less than 2' below the permanent pool surface.
C. Separated units, where the nozzle, pump and intake are connected by tubing, may be
used only if they draw water from the surface in the deepest part of the pond.
d. The fountain may not be placed into the forebay.
e. The falling water from the fountain must be centered in the main pond, away from the
shoreline.
f. The maximum horsepower for a fountain in this pond is 1/8 horsepower.
6. The facilities shall be constructed, operated and maintained in accordance with the provisions
of this permit, the approved plans and specifications, and the supporting documents attached
to this permit and on file with the Division.
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. A modification may be required for those deviations.
9. 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.
10. The permittee is responsible for verifying that the proposed built -upon area does not exceed
the allowable built -upon area.
11. The runoff from all built -upon area on the project must be directed into the appropriate
permitted stormwater control system, per the approved plans.
12. 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.
13. 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.
14. Prior to transfer of the permit, a file review and site inspection will be conducted by Division
personnel to ensure the permit conditions have been met and that the project and the on -site
stormwater system complies with the permit conditions. Any items not in compliance must be
repaired, replaced restored, or resolved prior to the transfer. Records of maintenance activities
performed to date may be requested.
III. GENERAL CONDITIONS
1. Any individual or entity found to be in noncompliance with the provisions of a stormwater
management permit or the requirements of the stormwater rules is subject to enforcement
procedures as set forth in NCGS 143 Article 21.
Page 3 of 5

State Stormwater Management Systems
Permit No. SW8 910502
2. The issuance of this permit does not preclude the permittee from complying with and obtaining
any other permits or approvals that are required for this development to take place, as
required by any statutes, rules, regulations, or ordinances, which may be imposed by any
other Local, State or Federal government agency having jurisdiction. Any activities undertaken
at this site that cause a water quality violation or undertaken prior to receipt of the necessary
permits or approvals to do so are considered violations of NCGS 143-215.1, and subject to
enforcement procedures pursuant to NCGS 143-215.6.
3. If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective
actions. This includes actions required by this Division and the stormwater rules such as the
construction of additional or replacement on -site stormwater systems. These additional or
replacement measures shall receive a permit from the Division prior to construction.
4. Permit Transfer: This permit is not transferable to any person or entity except after notice to
and approval by the Director. The permittee shall submit a completed and signed "Permit
Transfer Application Form" (available on the Division website) accompanied by the required
fee and supporting documentation as listed on the form, to the Division at least 60 days prior
to any one or more of the following events:
a. The sale or conveyance of the project area in whole or in part, except in the case of an
individual lot sale that is made subject to the recorded deed restrictions and protective
covenants;
b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or
NCGS 57D-6-07 and 08;
C. Bankruptcy,
d. Foreclosure, subject to the requirements of Session Law 2013-121,
5. Current Permittee Name or Address Changes: The permittee shall submit a completed
"Permit Information Update Application Form" (available on the Division website) to the
Division within 30 days to making any one or more of the following changes:
a. A name change of the current permittee;
b. A name change of the project;
C. A mailing address change of the permittee;
The permittee is responsible for compliance with all terms and conditions of this permit until
the Division approves the transfer request. Neither the sale of the project, in whole or in part,
nor the conveyance of common area to a third party constitutes an approved transfer of the
permit.
The permittee grants Division Staff permission to enter the property during normal business
hours to inspect all components of the permitted project.
The permit issued shall continue in force and effect until the permittee files a request with the
Division for a permit modification, transfer, renewal, or rescission; however, these actions do
not stay any permit conditions.
Approved plans, application documents, supplements, calculations, operation and
maintenance agreement, and specifications for this project are incorporated by reference and
are enforceable parts of the permit. A copy of this permit, application, supplements, operation
and maintenance agreement, and approved plans and specifications shall be maintained on
file by the permittee.
10. Unless specified elsewhere, permanent seeding requirements for the on -site stormwater
system must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
11. The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the
laws, rules, and regulations contained in Title 15A NCAC 2H.1000 and NCGS 143-215.1 et.al.
12. A permit renewal request must be submitted at least 180 days prior to the expiration date of
this permit. The renewal request must include the appropriate application, documentation and
the processing fee as outlined in Title 15A NCAC 02H.1045(3).
Page 4 of 5

State Stormwater Management Systems
Permit No. SW8 910502
Permit renewed, updated and reissued this the 22nd day of June 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
f nan��renn�ire for
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 5

Attachment C - Permitting History
Walmart Store #1767 Shallotte
;'Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
7/16/1991
Original
Approval
1.0
6/7/1999
Modification
1.1
Expansion
11/22/2004
Modification
1.2
Revised outlet structure
5/2/2013
Renewal
2.0
6/22/2021
Renewal
3.0

II - - -- -'- -- --- -' - --UEMLK'USE UNLY
Date cei ed
Fee Paid
Permit Number
-od 3 u5
W 0
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SW8910502
2. Project name: Walmart Stores, Inc.
3. Project street address: 4540 Main St. B 3079
City: Shallotte County: Brunswick ZIP
28470
4. What, if any, changes have been made to the project as permitted? N/A
If the project has changed from the original approved plans, please complete SWU-101 fora Major
Modification or Minor Modification Application form available at., https://deg.nc.gov/about/divisions/energy-
mineral-land-resources/energy-mineral-land-rules/stormwater-program/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at., https://deg.nc.gov/about/divisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: Walmart Stores, Inc.
2. Signing Official's Name: John Scudder
3. Signing Official's Title: Senior Vice President, US Chief Ethics and Compliance Officer
4. Mailing Address: 702 SW 81h Street
City: Bentonville State: AR ZIP:
72716-0505
5. Street Address: 702 SW 8'h Street
City: Bentonville State: AR ZIP
72716-0505
6. Phone: [phone] Email: kyarberry(d)walmart.com
�, JUN
BY V
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

r'
C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
X 1. A permit application processing fee of $505.00 payable to NCDEQ.
X 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
3. One hard copy and one electronic copy of recorded documents required by the original permit that
have not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
X 4. O&M Agreements, Please select one:
❑
I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
®
1 do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
X 5. Designer
Certifications, Please select one:
®
A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
❑
A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑
The project has not yet been built.
6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosne.gov/online services/search/bv title/ Business Registration
JUN as 2021
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

F
D. PERMITTEE'S CERTIFICATION
I, J hfl 5o tI Me i the person legally responsible for the permit, certify that I have
a copy of the Permit and 08M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the 08M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or o rship. II i formation provided on this permit renewal application is, to the best of my
knowledge, correct com a e.
Signature: %. Date: a
NOTARIZATION:
County of
a Notary Public for the State of
do hereby certify
that J oWN SCUAC personally appeared before me
this the olfi day of 20_4aj__, and acknowledge the due
execution of the forgoing instrument. Witness y hand and official seal,
(Notary Seal)
Notary Signature:
My commission expires (N . I
TAKEISHA JAMES
BENTON COUNTY
NOTARY PUBLIC—ARKANSAS'
My Commission Expires Nov.16, 2023
Commission No. 12396580
JUN
By-
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 201 B

8
Permit No.
State of North Carolina (to be provided by DWo
Department 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 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: WAL—MART STORE# 1767 PARKING LOT EXPANSION
Contact Person: CHARLES A. GARCIA Phone Number: @64 ) 672-3430
For projects with multiple basins, specify which basin this worksheet applies to EXI STING POND (DA# 1 )
elevations
Basin Bottom Elevation 2 S ft. (floor of the basin)
Permanent Pool Elevation 10.0 ft. (elevation of the orifice)
Temporary Pool Elevation 11.43 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 11 , 1 1 0 sq. ft. (water surface area at the orifice elevation)
Drainage Area 6.15 ac. (on -site and off -site drainage to the basin)
Impervious Area 4.73 ac. (on -site and off -site drainage to the basin)
volumes a,4
Permanent Pool Volume 4;XI STTNG cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 17,683 cu. ft. (volume detained above the permanent pool)
Forebay Volume —N/A cu. ft. (approximately 20% of total volume)
Other parameters
SA/DA 1 2.705 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 2 in. (2 to 5 day temporary pool draw -down required)
Design Rainfall 7 in
Design TSS Removal 2 90 % (minimum 85%required)
Form SWU-102 Rev 3.99 Page 1 of 4

r
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 BMW manual provides design tables for both 85% TSS removal and 90% TSS removal.
H. 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.
Is Initials
. 5 FT a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
N / A b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
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.
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 Adoes not incorporate a vegetated filter at the outlet.
This system (check one) 0 does X does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Permit No. SW8910502-Mod.
(to be 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
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review_
A complete stormwamr management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and butler structure details, and a fully executed
operation and maintenance agreement
I. PROJECT INFORMATION (please complete the following information):
Project Name: Wal-Mart Store #1767 Expansion (Shallotte, NC)
Contact Person: Charles A. Garcia Phone Number. [phone]
For projects with multiple basins, specify which basin this worksheet applies to: Existing Pond CrAn)
Basin Bottom Elevation 2.5 ft.
Permanent Pool Elevation 10.0 f6
Temporary Pool Elevation 11.43 ft
:manent Pool Surface Area 11,110 sq. ft.
breinage Area 60.15. ac.
Impervious Area
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
SAMA1 used
Diameter of Orifice
Design TSS Removal
4•-M
ac.
Exlstina
cu.ft.
17,683
cu.fL
N/A
cu. ft
2.705
2
in.
90
%
II. REQUIRED ITEMS CHECKLIST
(average elevation of the 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)
(surface area to drainage area ratio)
(85% TSS removal required, see item k below)
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) 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
•plication Form, the agent may initial below. If a requirement has not been met, attach justification.
Form SWU-102 January 1998 Page 1 of 2
E I R6b'0N NVNddAVN � t)N'U]Idd WVCS 6 6661 'L 'Unf

Permit No.
(to be 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
This form may be 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: WAL—MART STO
1767 PARKING LOT EXPANSION
Contact Person: CHARLES A. GARCIA Phone Number. ( 864) 672-3430
For projects with multiple basins, specify which basin this worksheet applies to£XI STING POND (DA# 2 )
elevations
Basin Bottom Elevation 5.0 ft. (floor of the basin)
Permanent Pool Elevation 1 1 . 0 ft. (elevation of the orifice)
Temporary Pool Elevation 1 2.8 5 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 15, 6 0 5 sq. ft. (water surface area at the orifice elevation)
Drainage Area 11 .58 ac. (on -site and off -site drainage to the basin)
Impervious Area 8.77 _ ac. (on -site and off -site drainage to the basin)
volumes y
Permanent Pool Volume
t
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA l
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev3.99
!t
4 5 , 512 cu. ft. (combined volume of main basin and forebay)
3 0 , 4 92 cu. ft. (volume detained above the permanent pool)
9,115 cu. ft, (approximately 20%of total volume)
3.07 (surface area to drainage area ratio from DWQ table)
2 in. (2 to 5 day temporary pool draw -down required)
1. in.
85 % (minimum 85%required)
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.
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.
I1. 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.
Is
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
in. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) ((does 0 does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does )(does not 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 Pon 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.).
it
The measuring,„device used to determine the sediment elevation shall be such that it will give an aceurate
depth reading and not readily penetrate into accumulated sediments,
When the permanent pool depth reads . 5 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads A-- 5 feet in the forebay, the sediment shall be removed
BASINDIAGRAM
(fill in the blanb)
Permanent Pool Elevation1 1 . 0
Sediment Removal El. 6. 5
'-------------'- Sed TtRemovalElevation6.5 75% Bottom Ele 'on -----------------------------
,. Bottom Elevation 5. 0 ----
FOREBAY 1( AM 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 minimised 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
Title:
as ; /"O� T , Wes/- Af / f --S , T, r.
Address: r%OO
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, VC k Lk-5 k a Notary Public for the State of �r41ac�SaS
County of RQ f�0n do hereby certify that Robe A re) • BQq(-,-<d
personally appeared before me this _a_%b day of M 0. t�S -, aO<)A and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
State of
Expires
SEAL
My commission expires S- 30 a c71 a
Form SWU-102 Rev 3.99 Page 4 of 4

Permit No. SW8910502-Mod .
(to be 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
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement.
1. PROJECT INFORMATION (please complete the following information):
Project Name: Wal-Mart Store #1767 Expansion (Shallotte, NC
Contact Person: Charles A. Garcia Phone Number (864 ) 672-3430
For projects with multiple basins, specify which basin this worksheet applies to: Proposed Pond (DA 40
Basin Bottom Elevation
5.0
ft.
(average elevation of the floor of the basin)
Permanent Pool Elevation
11.0
ft.
(elevation of the orifice)
Temporary Pool Elevation
12.62
ft
(elevation of the discharge structure overflow)
Permanent Pool Surface Area
15,605
sq. ft.
(water surface area at the orifice elevation)
Drainage Area
11.08
ac.
(on -site and off -site drainage to the basin)
Impervious Area
7.73
ac.
(on -site and off -site drainage to the basin)
Permanent Pool Volume
45,512
cu. ft.
(combined volume of main basin and forebay)
Temporary Pool Volume
27,277
cu. ft.
(volume detained above the permanent pool)
Forebay Volume
9,115
cu. ft.
SA/DA1 used
2.9
(surface area to drainage area ratio)
Diameter of Orifice
2.0
in.
Design TSS Removal
85
%
(85% TSS removal required, see item k below)
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, November 1995) 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.
Form SWU-102 January 1998 Page 1 of 2

.,
Is
a. The temporary pool controls runoff from the 1 inch storm event.
b. The basin length to width ratio is greater than 3:1.
c. The basin side slopes above the permanent pool are no steeper than 3:1.
d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
e. Vegetation above the permanent pool elevation is specified.
f. An emergency drain is provided to empty the basin.
g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
h. The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided in the permanent pool.
1. A 30=foot vegetative filter is provided at the outlet2 (include erosive flow calculations)
in. Recorded drainage easement for each basin including access to nearest right-of-way.
n. A site specific operation and maintenance (O&M) plan is provided.
o. A vegetation management/mowing schedule is provided in the 0&M plan.
p. Semi-annual inspections are specified in the O&M plan.
q. A debris check to be performed after every storm event is specified in the 0&M plan.
r. Specific clean -out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan3 (include name and title).
L If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin.
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.
'- The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90% TSS removal.
3 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.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment
systems (pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) ® does ❑ does not incorporate a vegetated filter.
This system (check one) ❑ does 'R does not incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1993 Page 2 of

jQlic s Initials
a
x
6 a- The temporary pool controls runoff from the 1 inch storm event.
b. The basin length to width ratio is greater than 3:1.
C. The basin side slopes above the permanent pool are no steeper than 3:1.
N/A d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
NSA e. Vegetation above the permanent pool elevation is specified.
f. An emergency drain is provided to empty the basin.
I. S n g. The permanent pool depth is between 3
h.
i.
k.
and 6 feet (required minimum of 3 feet).
The temporary pool draws down in 2 to 5 days.
A trash rack is provided for both the overflow and orifice.
The forebay volume is approximately equal to 20% of the total basin volume.
Sediment storage is provided in the permanent pool.
1. A 3040ot vegetative filter is provided at the outiet2 (include erosive flow calculations)
in. Recorded drainage easement for each basin including access to nearest right-of-way.
n A it
sr a specific operation and maintenance (O&M) plan is provided.
o. A vegetation management/mowing schedule is provided in the O&M plan.
p. Senu-annual inspections are specified in the O&M plan.
q. A debris check to be performed after every storm event is specified in the O&M plan.
r. Specific clean -out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan3 (include name and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin.
Footnotes:
1 When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious /o and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90% TSS removal.
3 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.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment
Systems (pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) ❑ does does not
This system (check one) ❑ does Xdoesnot
incorporate a vegetated filter.
incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1998
Page 2 of 3

u. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, grass
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.
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.
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. Removed sediment shall be disposed of in an appropriate
manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a
wet detention basin or stream, etc.).
The original design depth is: 6 ft
The sediment removal benchmark depth is: Elevation 6.5
5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged to grow along the basin perimeter.
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. `
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 above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the
project, responsible party, or address.
Print name:
FtN17_0N
Address: Z f- -5pe6kT
Phone: `Sol - Z73 - 46 (c 3
Title:
Sign,
Date:
I, IDu•bn«ab i1unCo allotary Public forthe State of RrknnsAs
County of P—n— n do hereby certify that C I 11� �GtiSfi
personally appeared before me this I }h day of 1)LC2 mhrr- 19 , and acknowledge the
due execution of the forgoing infiltration system maintenance requirements. Witness my hand and official seal,
My commission expires
SE�rai}E ubiic
�`
Benton C, :. . ; ,:a of Arkansas
MyCom^-.:c io;• ::xtures 7 2012008
Form SWU-102 Rev 1/August 1998 Paee 3 of 3

gene v
Engineer's Certification
as a duly registered
Professional .Engineer in the State of North Carolina, having
been authorized to observe (�eriodical_y/tit e) the
// ,,consstt/ruc`tiioonGof. theme project, / n
Wkl MAW l .Si/a.110//C . XAG) ��u�1s,J.JC /r / o/ec-
(Project) Y�
for .t-h59�rc6 1/7G • hereby state that, to
(Project Owner)
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.
Signa
Regis
Date Z'/7' Z,0
�puunnq
r`�c�ZH CARgea
%
0
�` �
t a• •Q........
i E SS%p�,G
.�
r SEAL
11966
Note: Copies of the Engineer's Certification,
supporting documentation should be maintained on
applicant and his/her 'local representative for the
project.
t/
'•nuuu�•`
plans,
and
file by
the
life of
the

r,
i`.

�-/D2oly
Engineer's Certification
I, =Z& n / //i�1/F� S , as a duly registered
Professional Engineer in the State of North Carolina, having
been authorized to observe (periodically% ) the
construction of the project,
v✓�/ /i/G,r'� l .S//�-/�D//C � �./G� , �TOim!-�/w>`"C� ✓O/CG7` � 7ID rJDI
(Project)
for -the kkl-/'Vjr, i 5re6 //JG• _ hereby state that, to
(Project Owner)
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.
Signatu e � ��0.Qp(Ess/D-. �y ;
Regist a n ]Nu er SEAL
_ 11966
Date 2'/7" ✓12 f
Note: Copies of the Engineer's Certification, plans, and
supporting documentation should be maintained on file by the
applicant and his/her local representative for the life of the
project.