SW8010706_CURRENT PERMIT_20210927

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
202I Q0121
YYYYMMDD

ROY COOPER
Goronar
ELIZABET[i & BISER
spy
BRIAN WR_ENN
Dlrecmr
September 27, 2021
NORTH CAROLINA
Enraneatenrni Quality
Waterford Business Park Owner's Association, Inc.
Attn: Robert Extant, President
1430 Commonwealth Drive
Wilmington, NC 28403
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 010706
Waterford Commerical Phase II Br III
Brunswick County
Dear Mr. Exum:
The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for
the subject project on September 16, 2021. The Division is hereby notifying you that permit SW8 010706 has been
renewed on September 27, 2021, and shall be effective until December 14, 2029. For your records, please find
enclosed a renewed, updated, and re -issued permit and a copy of the renewal application. A copy of the current
operation and maintenance agreement has not been enclosed as requested because there is no agreement on file. 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 November 21, 2001 and most
recently transferred on February 23, 2021, 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 919-431-3000, or visit their website at wwwNCOAH.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,
CRC
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
Enclosures: Attachment B — Built -Upon Area Allocation
Attachment C — Permitting History
Renewal Application Doctmlems
DES/ams: %Stormwater\Permits & Projects\2001\010706 HD\2021 09 permit 010706
cc: NCDEQ-DEMLR Wilmington Regional Office
Noon.IfI� @R QJ% North Camllna Department of Environmerrul Quality i Division of Energy, Naneral and Land Resources
es
North Safi bury Street 1 1612 Mail Service Center I Raleigh North Carolina 27699-1612
919.707.9200

State Stormwater Management Systems
Permit No. SW8 010706
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
Waterford Business Park Owners' Association, Inc.
Waterford Commercial Phase lI & Ill
NC Hwy 17, Belville, Brunswick County
FOR THE
construction, operation, and maintenance of a wet detention pond in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwaterrules') 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 December 14, 2029, and shall be
subject to the following specified conditions and limitations
I. DESIGN STANDARDS
1. 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 16 of this permit. The subdivision is permitted for eighteen (18) lots
with a built -upon area of 817,186 ft2 total. Overall impervious area for the project is
865,570 ft2 on a project of 23 3 acres. Each lot is allowed a maximum amount of built -
upon area, in square feet, as listed by Attachment B to this permit.
3. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
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. An off -site permit shall be required for any outparcel lot sold to a different owner.
Page 1 of 7

State Stormwater Management Systems
Permit No. SWS 010706
6. The following design criteria have been permitted for the wet detention pond and must be
maintained in the system at all times:
a. Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
b. Total Impervious Surfaces, ft2:
Lots, ft2:
Onsite streets, ft2:
Other onsite, ft2:
C. Design Storm, inches:
d Pond Depth, feet:
e. TSS Removal Efficiency, %:
f. Permanent Pool Elevation, FMSL:
g. Permanent Pool Surface Area, ft'
h. Temporary Storage Elevation, FMSL:
i. Permitted Storage Volume, ft3:
j Controlling Orifice:
k. Permitted Forebay Volume, ft3:
I. Receiving Stream / River Basin:
M. Stream Index Number:
n Classification of Water Body.
II. SCHEDULE OF COMPLIANCE
23.3
1,014,948
Rerouted, per Engineer
865,570
817,186
47,946
438 (pump station)
1.0
70
90
23.0
40,336
25.4
103,931
3.0" cp pipe
49,611
Jackeys Creek / Cape Fear
18-77-3
"C Sw"
1. The permittee is responsible for verifying that the proposed built -upon area for the entire
lot, including driveways and sidewalks, does not exceed the allowable built -upon area.
Once the lot transfer is complete, the built -upon area may not be revised without approval
from the Division of Energy, Mineral and Land Resources, and responsibility for meeting
the built -upon area limit is transferred to the individual property owner.
2. If an Architectural Review Committee (ARC) is required to review plans for compliance
with the BUA limit, the plans reviewed must include sidewalks and driveways Any
approvals given by the ARC do not relieve the lot owner of the responsibility to maintain
compliance with the permitted BUA limit.
3. The Director may notify the permittee when the permitted site does not meet one or more
of the minimum requirements of the permit or the stormwater rules Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the Director
for modifying the site to meet minimum requirements. The permittee shall provide copies
of revised plans and certification in writing to the Director that the changes have been
made.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 010706
4. No person or entity, including the permittee, shall alter any component shown in the approved
plans and specifications. Prior to the construction of any modification to the approved plans,
the permittee shall submit to the Director, and shall have received approval for modified plans,
specifications, and calculations including, but not limited to, those listed below. For changes to
the project or SCM that impact the certifications, a new or updated certification(s), as
applicable, will be required and a copy must be submitted to the appropriate DEQ regional
office upon completion of the modification.
a. Any modification to the approved plans and specifications, regardless of size including
the SCM(s), BUA, details, etc.
b. Redesign or addition to the approved amount of BUA or to the drainage area.
C. Further development, subdivision, acquisition, lease, or sale of any, all or part of the
project and/or property area as reported in the approved plans and specifications.
d Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or
vegetative conveyance shown on the approved plan.
e. The construction of any allocated future BUA.
f. The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included in
the approved plans and specifications.
g. Other modifications as determined by the Director.
5. 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.
6. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
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
8. 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 3/4 horsepower.
9. 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.
10. Prior to transfer of the permit, the stormwater facilities must be inspected by DEMLR
personnel, and determined to be in compliance with all permit conditions Any items not in
compliance must be repaired or replaced to design condition prior to the transfer. Records
of maintenance activities performed to date will be required.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 010706
11. The permittee shall at all time 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 re -vegetation 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, catch basins and
piping.
g. Access to the outlet structure must be available at all times.
12. 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.
13. The following deed restrictions and protective covenants related to stormwater
management have been recorded in Deed Book 2735 on Pages 36-52 with the Brunswick
County Register of Deeds, are incorporated by reference, and must be maintained in
perpetuity:
a. The maximum built -upon area per lot, in square feet, is limited to the amount listed in
Attachment B to Stormwater Management Permit No. SW8 010706. This allotted
amount includes any built -upon area constructed within the lot property boundaries,
and that portion of the right-of-way between the front lot line and the edge of the
pavement. Built upon area includes, but is not limited to, structures, asphalt, concrete,
gravel, brick, stone, slate, coquina, and parking areas, but does not include raised,
open wood decking, or the water surface of swimming pools.
b The covenants pertaining to stormwater regulations may not be changed or
deleted without concurrence of the State.
C. Alteration of the drainage as shown on the approved plan may not take place
without the concurrence of the State
d. All runoff on the lot must drain into the permitted system. This may be
accomplished through a variety of means including: a piped collection system
which ultimately discharges into the stormwater facility; appropriate grading of the
lot such that the built -upon surfaces drain into the facility; or graded swales which
collect runoff and direct into the stormwater facility.
e. Each lot within the subdivision, whose ownership is not retained by the permittee,
must submit a separate Offsite Stormwater Management Permit application
package to the Division of Energy, Mineral and Land Resources and receive a
permit prior to any construction on the lot.
14. A copy of the recorded deed restrictions must be submitted to the Division within 30 days
of the date of recording the plat, and prior to selling lots. The recorded copy must bear the
signature of the Permittee, the deed book number and page, and stamp/signature of the
Register of Deeds.
15. 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.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 010706
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.
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. The assignment or conveyance of declarant rights to another individual or entity;
C. The sale or conveyance of the common areas to a Homeowners or Property Owner's
Association, subject to the requirements of NCGS 143-214.7(c2);
d. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or
NCGS 57D-6-07 and 08,
e. Bankruptcy;
f. Foreclosure, subject to the requirements of Session Law 2013-121;
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;
6. 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.
7. The permittee grants Division Staff permission to enter the property during normal business
hours to inspect all components of the permitted project.
8 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
9. 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
Page 5 of 7

State Stormwater Management Systems
Permit No SW8 010706
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).
Permit renewed, updated and reissued this the 27th day of September 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Cam-
sBrian vvrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 010706
Attachment B
IMPERVIOUS AREA PER LOT
WATERFORD COMMERCIAL PHASE II & III
Lot
Total Area,
sq.ft.
Total Area, ac.
Impervious
Area, sq.ft.
Impervious
Area, ac.
% Impervious
1
93,323
2.15
73,050
1.68
78.3
2
79,594
1.83
62,000
142
77.9
3
48,117
1.06
43,305
.95
90
4
30,664
0.70
26,984
060
88
5
30,092
.69
27,083
.62
90
6
62,866
1.44
58,780
1.35
93.5
7
54,998
1.26
42,814
.98
77.9
8
47,049
1.08
31,382
.72
66.7
9
116,421
2.67
104,779
2.41
90
10
60,174
1.38
55,962
128
93
11
73,616
1.69
62,888
1.44
85.4
12
25,039
.57
23,787
55
95
13
24,191
.55
22,981
53
95
14
44,562
1.02
40,106
.92
90
15
60,457
1.39
54,412
125
90
16
44,378
1.02
39,941
.92
90
17
23,840
.55
22,648
.52
95
18
25,562
.59
24,284
.56
95
Totals
944,943
21.64
817,186
18.70
87.8
Page 7 of 7

Attachment C - Permitting History
Waterford Commercial Phase II & III
Permit No. SW8 010706
Approval
Permit
BIMS
Description of the Changes
Date
Action
Version
11 /21 /2001
Original
1.0
Approval
transfer from Stability, LLC "Finley Equipment
9/23/2004
Transfer
Not
Subdivision" to Waterford Commercial Investment, LLC
Recorded
"Magnolia Business Park"
changes ownership from Waterford Commercial Investment,
LLC to DLBE Commercial Investments, LLC; changes the
project name from Magnolia Business Park to Waterford
10/1 1/2005
Modification
1.1
Commercial Phase II & III; changes the Lot configuration
from 4 lots at 500,688 ft2 to 15 lots at 817,186 ft2 of
impervious area; increases the drainage area from 15.24
acres to 23.3 acres; & modifies the wet detention pond
design.
changes the lot lines, changes the lots from fifteen to
12/14/2007
Modification
1.2
eighteen, and reallocates the built -upon area among the
eighteen (18)lots
2/26/2014
Plan
1.3
revising the lot line between Lots 14 and 16 with impact on
Revision
permitted impervious areas; Permit Extention: 4 years
clarifying the lot area associated with this development, and
10/8/2014
Plan
I.4
approving the alteration in the stormwater collection system
Revision
required for the change in the lot layout associated with lots
14 and 16
The stormwater system on Lot 3 (Bloomin' Crary Nursery)
was revised by replacing the two (2) inoperable stormwater
8/30/2019
Modification
1.5
pipes with two (2) similar pipes that drain to the same drop
inlet as before. Reference the revision cloud on drawing
sheet C-200
2/23/2021
Transfer
1.6
from DLBE Commercial Investments, LLC to Waterford
Business Park Owners' Association, Inc
9/27/2021
Renewal
2.0

DEMLR USE ONLY
Date Re eive
Fee Paid
Permit Number
S Lid 1'�- Q 16
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: SW8 010706
2. Project name: WATERFORD BUSINESS PARK OWNER'S ASSOCIATION, INC.
3. Project street address: WATER -FORD COMMERCIAL PHASE II & III NC HWY 17
City: BELVILLE County: BRUNSWICK COUNTY
ZIP:
4. What, if any, changes have been made to the project as permitted? NONE
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https://deg.nc.gov/abouUdivisions/energv-
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/abouUdivisions/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: WATERFORD BUSINESS PARK OWNERS'
ASSOCIATION. INC.
2. Signing Official's Name: ROBERT C.G. EXUM
3. Signing Official's Title: REGISTERED AGENT
4. Mailing Address: 1430 COMMONWEALTH DRIVE
City: WILMINGTON State: NC ZIP:
28403
5. Street Address: 1430 COMMONWEALTH DRIVE
City: WILMINGTON State: NC ZIP:
28403
6. Phone: [phone] Email: [e-mail]
JUL 16 M1
Stormwater Permit Renewal Form Page 1 of 3 May 11. 2018

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.
1. A permit application processing fee of $505.00 payable to NCDEQ:
2. One original signed hard copy and one electronic copy of this completed form. The signing official
T(/ 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,
Irevrwly condominium/planned community declaration and easements. If the project has been built, include
SUbC 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.
�( 4. O&M Agreements, Please select one:
o❑ 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.
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
>YCU(Mbly signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
Subml>' Ita� inspected, and that they have been built and maintained in accordance with the permit.
rV 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.sosnc.gov/online services/search/by title/ Business Registration
JUL 16 2021
BV•
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTEE'S CERTIFICATION
1, klb� C . G . EY-JM , the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M 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 O&M 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 ownership. All information provided on this permit renewal application is, to the best of my
knowledge, correct and complete.
Signature: rs"� c '73 / % _ Date: 7 ! 2-1
NOTARIZATION:
I, CAIQLINNs L. C)eZtO , a Notary Public for the State of
j401LTH G'i Duw" —,County of NEW -H s E , do hereby certify
that kbM G. (3• 6*QA personally appeared before me
this the 13-M day of UJI-A , 202L_, and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal)
Notary Signature:
My commission e)
— —
JUL 16 2029
Stnrmwater Permit Renewal Annlication Form Pane 3 of 3 Mav 11. 2019

Permit No. W a U t u r706 mpb
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources 5
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:
Waterford Commercial Phase ll & III
Contact Person: D.I. Logan Phone Number:
For project with multiple basins, specify which basin this worksheet applies to:
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation
areas
Permanent Pool Surface Area
Drainage Area
Impervious Area
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA'
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form: SWU-102 Rev 3.99
910
N/A
443-2869
16.0
ft.
(floor of the basin)
23.0
ft.
(elevation of the orifice)
25.4
ft.
(elevation of the discharge structure overflow)
40,336
sq. ft.
(water surface area at the orifice elevation)
23.3
ac.
(on -site and off -site drainage to the basin)
19.9
ac.
(on -site and off -site drainage to the basin)
228,629
cu. ft.
(combined volume of main basin and forebay)
103,931
cu. ft.
(volume detained above the permanent pool)
49,610.5
cu. ft.
(approximately 20% of total volume)
3.7
3.0
1.0
(surface area to drainage area ratio f •om DWQ table)
in. (2 to 5 day temporary pool draw -down required)
in.
90 % (minimum 85% required)
7DEC
Page 1 of 4 0 5 2007

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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 % 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.
Applicants Initials:
a.
b.
C.
d.
e.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
The forebay volume is approximately equal to 20% of the 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)
The basin length to width ratio is greater than 3:1.
The basin side slopes above the permanent pool are no steeper than 3:1.
A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
Vegetative cover above the permanent pool elevation is specified.
A trash rack or similar device is provided for both the overflow and orifice.
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) 0 does X does not incorporate a vegetated filter at the outlet.
F2FCFIVE
Form: SWU-102 Rev 3.99 Page 2 of 4 DEC 0 5 2001
G„�a Olt'
MbD

I
.' � .,
,

This system (check one) 0 does X does not incorporate pretreatment other than a forebay.
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.
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 as such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 5.25 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 4.5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill In the blanks)
Q Penmanent Pool Elevation = 23.0
Sediment Remov EL 18.5
75% Sediment Removal Elevation = 17.75 75%
Bottom Elevation 17.0 5% /
Bottom Elevation = 16.0 25%
FOREBAY
ua 1� '1�11
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
the emergency drain shall be minimized to the maximum extent practical.
Form: SWU-102 Rev 3.99 Page 3 of 4
ing of se ' ugh
�CF
DEC 0 5 2007
,.-� to 1aa MOD

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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: D.I. Logan
Title: Manager
Address: 60 Gregory Road Belville, NC 28451
Phone:
Signatur
Date:
Note: The legally responsible party should not he 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, 2tj�A a Notary Public for the State of /1fAerli elyelt;ol
County of rJ -A2yam' ,do hereby certify that TJ z LZ609AI
personally appeared before me this Z7�5 day of ;Cy7- ,and acknowledge the due
execution of the foregoing wet detention basin maintenance requirements. Witness my hand and official seal,
OFFICIAL SEAL
� ptotpry PuWk-North Cerdine
NEW HANOVERCOUNTY
H SCOTT KENNEDY, JF
SEAL
My commission expires Aarrdl
Form: SWU-102 Rev 3.99
7BY--2U
CEIVED
Page 4of4 C 0 5 2007
--°� °� ° 1e m01J

I
m

Permit No. 5W *9010 -7OiO
(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 jar 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 signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: _
Contact Person:
2
Phone Number_
For projects with multiple basins, specify which basin this worksheet applies to
elevations
Basin Bottom Elevation
_16.0
ft.
Permanent Pool Elevation
_23.0
ft.
Temporary Pool Elevation
25.0
ft.
areas
Permanent Pool Surface Area 43,053_ sq.ft.
Drainage Area
Impervious Area
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA'
Diameter of Orifice
Design Rainfall
Design TSS Remova12
_15.24 ac.
11.49 ac.
(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-sile and off -site drainage to the basin)
199.260 cu.ft. (combined volume of main basin and forebay)
91 191__ cu.ft. (volume detained above the permanent pool)
38 867_ cu.ft. (approximately 20% of total volume)
3.65 (surface area to drainage area ratio from DWQ table)
3.0 in. (2 to 5 day temporary pool draw -down required)
1.0 in.
90 % (minimum 85% required)
Form SWU-102 Rev 3.99 Page 1 of 4

Fo6tnotes:
1. When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2. In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP 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.
Applicants Initials
Gti' a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
ttX. b The forebay volume is approximately equal to 20% of the total basin volume.
Gfx c. The temporary pool controls runoff from the design storm event.
eftx_ d. The temporary pool draws down in 2 to 5 days.
CDf✓
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.
Coe g. The basin side slopes above the permanent pool are no steeper than 3: 1.
c9c h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
62t i. Vegetative cover above the permanent pool elevation is specified.
(91 j. A trash rack or similar device is provided for both the overflow and orifice.
Cr>/, k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way
c yt, 1. 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
Cry 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 X does not incorporate a vegetated filter at the outlet.
This system (check one) ❑ does X does not incorporate pretreatment other than a forebay.
Form SWU-l02 Rev 3.99 Page 2 of 4

• 'r
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention 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 not be handled in a manner that will 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 5.25 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.25 feet in the forebay, the sediment shall be removed.
Sediment Removal El. 20.75
Bottom Bllevation 20.0
FOREBAY
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 23.0
Sediment Removal Elevation 17.75 ♦ 75%
Bottom Elevation
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 possible.
Form SWU-102 Rev 3.99 Page 3 of 4

SEP.16.2004 9:11AM NCDENF. WIF.O N0.9O2 F.5
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge srid 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 responsi le party.
Print name:_ D tl B, AA�oHu�-ter 4' — ✓r✓f � L �i
Title: �N ' ,K��.,,., ]� LO 4_N
Phone;
Signature;
Date: — o
Note: The legally responsible parry should not be a hnmeeWnera association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president,
—,a Notary Public for the State of
Cottntyof lJ' do hereby certify that
personally appeared before me this r', N — day of_ CEP and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
G:
S
. � /Imn
My commission expires /
Form SWU.102 Rov 3.99 Page 4 of 4

PFV
Waterford Commercial
Stormwater Permit No.
Brunswick County
Phase II & III
SW8 010706 Modification
Designer's Certification
State Stormwater Management Systems
Permit No. SW8 010706 Modification
Page 1 of 2
1, 14- P8,41S ri),sPEL.l. , as a duly registered Fe6FE55iVgA EtL6ojcc in
the State of North Carolina, having been authorized to observe (periodically/ lfulf�e)
the construction of the project,
for pL RECoMMC�CIg� INVEST��,Q, �� (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 are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number OZ490B
Date /0/Z9107
SEAL
RECEIVED
OCT 3 1 2007
BY:
Page 8 of 9

State Stormwater Management Systems
Permit No. SW8 010706 Nlodification
Certification Requirements: Page 2 of 2
71. The drainage area to the system contains approximately the permitted acreage.
702. The drainage area to the system contains no more than the permitted amount of
built -upon area.
N 3. All the built -upon area associated with the project is graded such that the runoff
drains to the system.
�4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting
of the system.
The permitted amounts of surface area and/or volume have been provided.
1 1. Required drawdown devices are correctly sized per the approved plans.
_66402. All required design depths are provided.
dle"13. All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter.
N�A 14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ Regional Office
Delaney Aycock, Brunswick County Building Inspections
Jeff Phillips, Brunswick County Engineering
�TZDSELT N>7T Lf)MiIBTC — OUi�A(LGL-LS
�CI Tp $C
tD6tlCt 0PE1'
�'�
'�!-IGSG Et,L-t•scNTs ccZTiFtEt� peEv�o�s�y
�RaU�puSt�
SJBniTfet�
CERTt Ft LATlor1 t5 .4 r1AcHc'bo
OCT 3 12007
Page 9 of 9

lfl L HJJ GIU11YGGRINU
rmV GL
State Sto=water Management Systems
Permit No. SW9 010706
.A,mley Equipment Subdivision
Stormwater Permit No. S W8 D 10706
Brunswick County
Designer's Certification
1, �eF�cv a Mpf scs ,as2
the State of North Carolina, having been authorized to
the project,
l
Page I of 2
7s For
for .. J d r+e 5 i7u It (Project Owner) hereby crate that, to the best o£zny 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 are a part of this Certification.
Noted deviations from approved plans and specifications:
SignatureV I
Registration Number S
Date C' I - 0 `{
SEAL
AP
Zo
BGAL
i 2W
1 FIVFD .
DEC 0 5 200I
BY: J

' ., .„�.,..� ..,. �., .�..,.,�....�.. ,•,.,Lr..,�� uvulivGCR1�vV rr-�� u:
State Stormwater Mananement ,
Permit No. SW8 6
Certification Requirements: Page 2 of 2
i
t/ 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.
—73. All the built -upon area associated with the project is graded such that the runoff drains to the system.
The oudei/bypess structure elevations are per the approved plan.
The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. I All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
✓9. The inlets are located per the approved plans and do not cause short-circuiting of the system.
L✓10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
�12. All required design depths are provided.
3. All required parts of the system are provided such as a vegetated shelf, a forebny, and the vegetated
filter.
14. The overall dimensions of the system, as shown on the approved plans, are provided.
cc: NCDENR-DWQ Regional Office
Delaney Aycock, Brunswick Cuwity Building Lispt:etious
RECEIVED
DEC 0 5 2007
BY:

High Density Commercial Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000, the Management Regulations, deed restrictions and
protective covenants are required for High Density Commercial Subdivisions where lots will be
subdivided and sold and runoff will be treated in an engineered stormwater control facility. Deed
restrictions and protective covenants are necessary to ensure that the development maintains a built -
upon area consistent with the design criteria used to size the stormwater control facility.
I, V. r. LD6AN , acknowledge, affirm and agree by my signature below, that
I will cause the following deed restrictions and covenants to be recorded prior to the sale of any lot
within the project known as WRTE46,a¢,D aymmERGiAL P/%vSe // f //i
1. The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number SW A OI d 7c1 , as issued by the Division of Water Quality
under NCAC 2H.1000.
2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
3. These covenants are to run with the land and be binding on all persons and parties claiming
under them.
4. The covenants pertaining to stormwater may not be altered or rescinded without the express
written consent of the State of North Carolina, Division of Water Quality.
5. Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the Division of Water Quality.
6. The maximum allowable built -upon area per lot is square feet. {OR, if the
proposed built -upon area per lot will vary, please use the following format & language (in bold):
The maximum built -upon area per loi, in square feet, is as listed below:
Lot # BUA Lot # BUA Lot # BUA Lot # BUA
.90 SEE A7rA4W.,nk,6L7-
This allotted amount includes any built -upon area constructed within the lot property boundaries,
and that portion of the right-of-way between the front lot line and the edge of the pavement. Built
upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate,
coquina and parking areas, but does not include raised, open wood decking, or the water
surface of swimming pools.
7. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be
accomplished through a variety of means including roof drain gutters which drain to the street,
grading the lot to drain toward the street, or grading perimeter swales to collect the lot runoff
and directing them into a component of the stormwater collection system. Lots that will naturally
drain into the system are not required to provide these additional measures.
8. The owner of each lot, whose ownership is not retained by the permittee, is required to submit a
separate stormwater permit application to the Division of Water Quality and receive a permit
prior to construction.
Sianature: cti� — nntP.
State of luc �
do hereby certify that 4z r . 4v6As./ personally appeared
before me this the 2705 day of lVollem bevr— , 20Q7_, and acknowledge
the due execution Of the foregoing instrument. Witness my hand and official seal,
SEAL
Signaare OOF, OFFICtALSEAL
.,�
Notary Public - NaM Carolina
My Commission expires Mkp,b 1-7 ZO/L' NEW HANOVER COUNTY
I G
Form DRPC-1 Rev.1 Page 1 of 1 H. SCOTT KENNEDY, JR.
r

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6WE olcnclomoo
l2 `,>q
ATTACHMENT A
IMPERVIOUS AREA PER LOT
WATERFORD BUSINESS CENTER PHASE II & III
Lot #
Total Area sq.ft.
Total Area, ac.
Impervious
Area, sq.ft.
Impervious
Area, ac.
% Impervious
1
93,323
2.15
73,050
1.68
78.3
2
79,594
1.83
62,000
1.42
77.9
3
48,117
1.06
43,305
0.95
90.0
4
30,664
0.70
26,984
0.60
88.0
5
30,092
0.69
27,083
0.62
90.0
6
62,866
1.44
58,780
1.35
93.5
7
54,998
1.26
42,814
0.98
77.9
8
1 47,049
1.08
31,382
0.72
66.7
9
116,421
2.67
104,779
2.41
90.0
10
60,174
1.38
55,962
1.28
93.0
11
73,616
1.69
62 888
1.44
85.4
12
25,039
0.57
23,787
0.55
95.0
13
24,191
0.55
22,981
0.53
95.0
14
44,562
1.02
40,106
0.92
90.0
15
60,457
1.39
1 54,412
1.25
90.0
16
44,378
1.02
39,941
0.92
90.0
17
23,840
0.55
22,648
LLLLQ.52
95.0
18
25,562
0.59
24,284
1 0.56
1 95.0
Totals
944,943
21.64
817,188
1 18.70
1 87.8

SEP.16.2004 9:11AM NCDENP. WIF.O NO.902 P.2
Permit No. yfW 8 0l070(47
(to be provided by DwQ
State of North Caralina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
TMsform may be photocopied for use as an original
DWQ Stormwater ManaR=ent 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 signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: FinlLy Eauh=nt
Contact Person; Phone Numbei
For projects with multiple basins, specify which basin this worksheet applies to:
elevations .
Basin Bottom Elevation 6_Z .0 , ft. (floor of the basin)
Permanent Pool Elevation 23.0 ft. (elevation of the orifice)
Temporary Pool Elevation 25_ ,0_ ft, (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 43�053 _ sqA. (water surface area at the orifice elevation)
Drainage Area 15.24 ac. (on -site and off -site drainage to the basin)
Impervious Area 11.49 ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume _ 199260 cuJI. (combined volume of main basin and forebay)
Temporary Pool Volume 91,191 cu.ft. (volume detainedabove thepermanentpool)
Forebay Volume 3�� cu.R. (approximately 20% of total volume)
Other parameters
SA/DA' 3.65 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 3.0 in. (2 to 5 day temporarypool draw -down required)
Design Rainfall 1.0 in.
Design TSS Removals 90 % (minimum 85%required)
Form SWU-102 Rev 3,99 Page 1 of 4

SEP.15.2004 9:11RM NCDENR WIRO
NO.902 P.-1
Faotnotes:
i
1. 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.
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 NC'DENR BNe manual provides design tables for both 85% TSS removal and 90% TSS removal
U. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of EaviromAent, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .loos,
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
GGL a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
Cc,rl b. The forebay volume is approximately equal to 20% of the total basin volume.
C 7 c. The temporary pool controls runofffrom the design storm event.
Ca_ d. The temporary pool draws down in 2 to 5 days.
W IN, e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations).
CDG f The basin length to width ratio is greater than 3: 1.
Coc g. The basin side slopes above the permanent pool are no steeper than 3: 1.
Get; h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
LaG i. Vegetative cover above the permanent pool elevation is specified.
Cot j. A trash rack or similar device is provided for both the overflow and orifice.
CC7/_ k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
Cr,)(_ 1. 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
CEZ_ 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) ❑ does X does not incorporate a vegetated filter at the outlet.
This system (check one) ❑ does X does not incorporate pretreatment other than a forebay.
Form SNM-102 Rev 3.99 Page 2 of 4

5EP.I5.2004 9:11RM NCDENP WIRO NO.902 P.4
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. ChecL• 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 (.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 not be handled in a manner that will 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 5.25i feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.25 feet in the forebay, the sediment shall be removed,
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 23.0
$edirn=t Removal El, 20.75
sediment Removal Elevation 17.75 4, 75%
Bottom Elevation 20.0
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50116 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 possible.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print
Address:
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,
County of
a Notary Public for the State of
do hereby certify that
personally appeared before me this day of , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission
Form SWU-102 Rev 3.99 Page 4 of