SW8011119_Current Permit_20220909

ROY COOPER
Governor 1!
ELIZABETH S.BISER y+
Secretary ,,.,�'-
BRIAN.W RENN NORTH CAROLINA.
Director EnvironmentafQuaitty
September 9,2022
The Village at Mayfaire Condominium Owner's Association,Inc.
Attn:Lyle Salmon,Board President
1618 Military Cutoff Road, Suite 108
Wilmington,NC 28405
Subject: Permit Renewal
Post-Construction Stormwater Management Permit No.SWS 011119
The Village at Mayfaire
New Hanover County
Dear Mr. Salmon:
The Division of Energy,Mineral and Land Resources received a complete 8-year Permit Renewal Application for
the subject permit on September 9,2022. The Division is hereby notifying you that permit SW8011119 has been
renewed,updated,and re-issued on September 9,2022,as attached.Please be aware that the renewal and re-
issuance of this stormwater permit does not imply that the site is currently in compliance.
This permit shall be effective until December 4,2024 and does not supersede any other agency permit that may
be required. The project shall be subject to the conditions and limitations as specified therein. This permit does
not impose new or increased stormwater control requirements;it clarifies the rules and requirements of this
program to provide you with a better understanding of your obligations under this permit. Failure to comply with
these requirements will result in future compliance problems. Please note that this permit is not transferable
except after notice to and approval by the Division.
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 www.NCOAH.com.Unless
such demands are made this permit shall be final and binding.
If you have any questions concerning this permit,please contact Ashley Smith in the Wilmington Regional
Office,at(910)796-7215 or [e-mail].
Sincerely,CML C-6?
Brian Wrenn,Director
Division of Energy,Mineral and Land Resources
Enclosures: Attachment C—Permitting History
Renewal Application Documents
DES/ams: 111Stormwater\Permits&Projects1200 110 1 1 1 1 9 HD\2022 09 permit 011119
cc: Wilmington Regional Office Stormwater File
(70 North Carolina Department of Ezrviroflmental Quality I Division of Energy;.Mineral and Land Resources
tiVilmington Regional office 1127 Cardfial.Drive Extension I Wiknlrigton,North Caroflna 28405
'"Ae r+«ei p r 91.0.79672t5

Post-Construction Stormwater Management
Permit No. SW8 011119
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
POST-CONSTRUCTION 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
The Village at Mayfaire Condominium Owners Association
The Village at Mayfaire
6814 Mayfaire Club Drive, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of an alternative high density stormwater management
system consisting of three (3)wet detention storage ponds, each with a pumped discharge to a
common infiltration basin, in compliance with the provisions of 15A NCAC 2H .1000 (hereafter
referred to as the "stormwater rules") and ... as outlined in the application, approved stormwater
management plans, supplement, calculations, operation and maintenance agreement, recorded
documents, specifications, and other supporting data (the "approved plans and specifications") as
attached and/or on file with and approved by the Division of Energy, Mineral and Land Resources (the
"Division" or"DEMLR"). The project shall be constructed, operated and maintained in accordance
with these approved plans and specifications. The approved plans and specifications are
incorporated by reference and are enforceable part of this permit.
This permit shall be effective from the date of issuance until December 4, 2024 and shall be subject to
the following specified conditions and limitations. 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 condition. 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.
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 Sections 1.9 and 1.10 of this permit. The wet ponds labeled 1, 2 and 3, have been
designed to provide treatment for the runoff from 104,416 sf; 179,580 sf; and 321,364 sf of
built-upon area, respectively.
3. The flow from the orifice of the wet pond must discharge into a spreader swale designed to
force a sheet flow runoff condition into the bermed infiltration area.
4. The orifice size has been designed to allow the wet ponds to draw down in 4 days therefore
the infiltration basin has been designed to store and infiltrate a maximum volume per day
equivalent to the total volume pumped to the basin from each pond within the first 24 hours of
a 1.5" rain event.
Page 1 of 5

Post-Construction Stormwater Management
Permit No. SW8 011119
5. The tract and each BMP will be limited to the amount of built-upon area indicated in Sections
1.2, 1.9 and 1.10 of this permit, and per the approved plans. The maximum total built-upon area
allowed on the site is 605,360 square feet.
6. All overflows from the wet ponds that is in excess of the 1.5" design storm must flow overland
through a 50' vegetated filter.
7. The runoff from all built-upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system, as shown on the approved drainage
area plan.
8. A portion of this development is within the designated 575'AEC. The overall percent
impervious within the AEC cannot exceed 25%. For the entire Mayfaire development, the area
of the AEC is 59.28 acres, and the proposed built-upon area within the 575'AEC is 14.5 acres.
9. The following design criteria have been approved for the infiltration basin, and must be
maintained at design condition:
a. Drainage Area, acres: 26.85
Onsite, ft2: 1,169,586
Offsite, ft2: 0
b. Total Impervious Surfaces, ft2: 605,360
c. Design Storm, inches: 1.5
d. Basin Depth, feet: 1.0
e. Bottom Elevation, FMSL: 27.0
f. 24 hour volume pumped from ponds, ft3: 37,219
g. Provided Volume, ft3: 37,219
h. Provided Bottom Surface Area, ft2: 33,827
i. Temporary Storage Elevation, FMSL: 28.0
j. Type of Soil: Murville
k. SHWT Elevation, fmsl: 25.0
I. Expected infiltration rate, in/hr: 1.0
m. Time to draw down 1.5"volume, days: 5
n. Receiving Stream/River Basin: Howe Creek/CPF24
o. Stream Index#: 18-87-23
p. Stream Classification: "SA ORW"
10. The following design criteria have been approved for the three wet detention storage ponds
and must be maintained at design condition:
Pond Number: 1 2 3
a. Drainage Area, acres: 4.6 9.7 12.55
Onsite, ft2: 200,000 423,000 547,000
Offsite, ft2: 0 0 0
b. Built-upon area, ft2: 104,416 179,580 321,364
c. Design Storm, inches: 1.5 1.5 1.5
d. Pond Design Depth, ft: 4.0 4.0 4.5
e. Permanent Pool elevation, FMSL: 25.0 25.5 25.0
f. Permanent Pool Surface Area, ft2: 11,621 23,510 28,621
g. Provided Storage Volume, ft3: 19,163 30,228 39,729
h. Excess Storage Provided, ft3: 65% 29% 39%
i. Controlling Orifice pipe diameter: 1.75" 2.5" 2.75"
j. Receiving Stream/River Basin: Howe Creek/CPF24
k. Stream Index Number 18-87-23
I. Stream Classification: "SA ORW'
Page 2 of 5

Post-Construction Stormwater Management
Permit No. SW8 011119
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.
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 slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch
basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DEMLR. The records will indicate the date, activity, name of person
performing the work and what actions were taken.
5. Decorative spray fountains will be allowed in the stormwater treatment system if calculations
are provided documenting the permeant pool volume is greater than 30,000 cubic feet.
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.
8. If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to occupancy of the
facility.
9. The permittee must maintain compliance with the maximum allowed built-upon area and
ensure that the runoff from all the built-upon is directed into the permitted system.
10. 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.
Page 3 of 5

Post-Construction Stormwater Management
Permit No. SW8 011119
11. 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. Adding the option to use permeable pavement or#57 stone within the lots as a
permeable surface. The request may require a proposed amendment to the deed
restrictions and protective covenants for the subdivision to be submitted and recorded.
g. 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.
h. Other modifications as determined by the Director.
III. GENERAL CONDITIONS
1. CORRECTIVE ACTIONS REQUIRED. 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.
2. PERMIT RENEWAL. 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).
3. CHANGES TO THE PROJECT NAME, PERMITTEE NAME OR CONTACT INFORMATION.
The permittee shall submit a completed Permit Information Update Application Form to the
Division within 30 days to making any one of these changes.
4. TRANSFER. This permit is not transferable to any person or entity except after notice to and
approval by the Director. Neither the sale of the project and/or property, in whole or in part, nor
the conveyance of common area to a third party constitutes an approved transfer of the permit.
a. TRANSFER REQUEST. The transfer request must include the appropriate application,
documentation and the processing fee as outlined in 15A NCAC 02H.1045(2). This
request must be submitted within 90 days of the permit holder meeting one or more of the
following:
i. A natural person who is deceased;
ii. A partnership, limited liability corporation, corporation, or any other business
association that has been dissolved;
iii. A person or entity who has been lawfully and finally divested of title to the property
on which the permitted activity is occurring or will occur through foreclosure,
bankruptcy, or other legal proceeding.
iv. A person or entity who has sold the property, in whole or in part, on which the
permitted activity is occurring or will occur, except in the case of an individual
residential lot sale that is made subject to the recorded deed restrictions and
protective covenants;
v. The assignment of declarant rights to another individual or entity;
Page 4 of 5

Post-Construction Stormwater Management
Permit No. SW8 011119
vi. The sale or conveyance of the common areas to a Homeowner's or Property
Owner's Association, subject to the requirements of NCGS 143-214.7(c2);
b. TRANSFER INSPECTION. 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.
Records of maintenance activities performed to date may be requested. Projects not in
compliance with the permit will not be transferred until all permit and/or general statute
conditions are met.
5. COMPLIANCE. The permittee is responsible for compliance with the terms and conditions of
this permit until the Division approves the transfer request.
a. APPROVED PLANS AND SPECIFICATIONS. A copy of this permit, approved plans,
application, supplement, operation and maintenance agreement, all applicable
recorded documents, and specifications shall be maintained on file by the permittee at
all times.
b. DIVISION ACCESS. The permittee grants Division Staff permission to enter the
property during normal business hours to inspect all components of the permitted
project.
c. ENFORCEMENT. 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.
d. ANNUAL CERTIFICATION. The permittee shall electronically submit to the Division an
annual certification completed by either the permittee or their designee confirming the
projects conformance with permit conditions
e. OBTAINING COMPLIANCE. 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 modified plans and certification in writing to the Director that the
changes have been made.
f. OTHER PERMITS. 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.
Permit renewed, updated and reissued this the 9th day of September 2022.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
:11fl
Ci?1*%
Directd`
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 5

Attachment C- Permitting History
The Village at Mayfaire
Permit No.SW8 011119
Approval Permit B1M5 IDescription of the Changer
Date pion Version
construction,operation and maintenance of an alternative high
Original density stormwater system consisting of three wet detention
12/4/2002 1.0 storage ponds,each with a pumped discharge to a common
Approval
infiltration basin, in compliance with the provisions of 15A
NCAC 2H.1000
12/7/2007 Transfer No Version in BIMS; from The Village at Mayfaire,LLC to the
The Village at Mayfaire Condominium Owners Association
revises Section III of the permit,the Monitoring Requirements.
10/12/2011 Modification 1.1 A new sampling location map has been approved and is added
to the plans previously approved on December 4,2002,which
remain in effect
5/1/2015 Modification 1.2 eliminates the Monitoring and Sampling requirements
the downspouts of the building adjacent to Pond 2 discharge at
grade,which is causing erosion problems with the pond slope.
1/13/2016 Plan 1.3 The approved revisions include the installation of stormwater
Revision pipes to collect the downspout discharge from this unit and
direct this runoff to the forebay of Pond 2
9/9/2022 Renewal 2.0 Expires December 4,2024

DEMLR USE ONLY
Date Received Fee Paid Permit Number
Z./ 1 122 44 5ot $566 sw% ot►tt
NC DEQ Division of Energy, Mineral and Land Resources 1tECEIVEC
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM F 2 .22
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 011119
2. Project name: The Village at Mayfaire Condominium Owners Association, Inc.
3. Project street address: 6814 Mayfaire Clubhouse
City: Wilmington County: New Hanover
ZIP: 28405
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:httos://deq.nc.gov/about/divisions/enerov-
mineral-land-resources/energv-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:httos://dea.nc.gov/about/divisions/energv-mineral-Iand-
resources/energv-mineral-land-rules/stormwater-Droaram/Dost-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: The Village at mayfaire Condominium Owners
Association,Inc.
2. Signing Official's Name: Lyle Salmon
3. Signing Official's Title: Board President
4. Mailing Address: 1612 Military Cutoff Rd., Suite 108
City: Wilmington State: NC ZIP :
28405
5. Street Address: 6813 Mayfaire Club Drive,Unit 301
City: Wilmington State: NC ZIP :
28405
6. Phone: [phone] Email:[e-mail]
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:
Z 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
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. .
4. O&M Agreements, Please select one:
g 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
❑ I 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
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).
httos://www.sosnc.gov/online services/search/by title/ Business Registration
• a '
Stormwater Permit Renewal Application Form Page 2 of 3 May 11,2018

D. PERMITTEE'S CERTIFICATION 1
i, ) e SG. 1 IY , 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 arty changes to the
project, SCMs r own hip. All information provided on this permit renewal application is, to the best of my
knowledge, c tan o lete.
4oZ.
Signature: ,tAliv\ Date: 1-42/
NOTARI TION: (((///
q AII
I. ®1r �? Lam.� �" ; a Notary Public for the State of
/ ®r r r• , Countyof Ayr kind, r do hereby certify
that ,L i Set. /Y!DJ personally appeared before me
this the � t day of ifktt I _ 20, , and acknowledge the due
execution of the forgoing instrument. WitnessTy hand and official seal,
(Notary Seal)
```ttottitatioi�
Notary Signature: 144 y J `. ��1.OR�S4�,�,
*1 ./.661111"88/6..•1:1,S
My commission expires r 9 U i:*•�� NOT,9�o '% rm
SV &Clc • )
- O1 ps.2B . #
i`i3O COUN`e:�`�
i
Stormwater Permit Renewal Application Form Page 3 of 3 May 11,2018

Permit No. F O t /I l+'3
(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
DWQ 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: THE VILLAGE AT MAY FA l iz E
Contact Person: CNoce 11W85/ Phone Number: (5 ) 812-BSoo X 304i
For projects with multiple basins,specify which basin this worksheet applies to: PO ND I
elevations
Basin Bottom Elevation 245 ft. (floor of the basin)
Permanent Pool Elevation 2S.o0 ft. (elevation of the orifice)
Temporary Pool Elevation 2 6.So ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area J J16L J sq. ft. (water surface area at the orifice elevation)
Drainage Area Aida ac. (on-site and offsite drainage to the basin)
Impervious Area 2.4 ac. (on-site and off site drainage to the basin)
volumes
Permanent Pool Volume 26l to OS cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume !9,I1e3 cu. ft. (volume detained above the permanent pool)
Forebay Volume 7 13 0 cu. ft. (approximately 20%of total volume)
Other parameters
SA/DA1 0.0 yS (surface area to drainage area ratio from DWQ table)
Diameter of Orifice IN in. (2 to 5 day temporary pool draw-down required)
Design Rainfall _l S in.
Design TSS Removal 2 10 % (minimum 85%required)
Form SWU-102 Rev 3.99 Page 1 of 4

44,
Footnotes:
I When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 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
GPT a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
CPT b. The forebay volume is approximately equal to 20% of the basin volume.
CPT c. The temporary pool controls runoff from the design storm event.
GpT d. The temporary pool draws down in 2 to 5 days.
CPT e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
calculations)
CPT f. The basin length to width ratio is greater than 3:1.
_Cpr g. The basin side slopes above the permanent pool are no steeper than 3:1.
CPT h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
CPT i. Vegetative cover above the permanent pool elevation is specified.
CPT j. A trash rack or similar device is provided for both the overflow and orifice.
cpi k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
CPT 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.
GPT 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 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:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion,trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system(i.e. catch basins,piping,swales,riprap,etc.)quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75%of the original design depth(see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 3.38 feet in the main pond,the sediment shall be removed.
When the permanent pool depth reads 338 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 25.0
Sediment R oval El. 21.42 75 0
Sediment Removal Elevation 2/.42. 75%
Bottom Ele ation 20.50
Bottom Elevation 20.SO 25%
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50%of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance,the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: --jeS.S c L.
Title:Rz SIdent • l p
Address:550 a(C �'1aNY C -2.0S
Phone: `\\b` J 43
Signatuure•
Date: 1
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, LM4 Q/VOY •Kr\ , a Notary Public for the State of flOfGANtc,
County of f1 oVAcry:m-9T , do hereby certify that 3 - ' z cc, L• (S , tit tf,
personally appeared before me this k 01 day of AJ O02.in\ r , AOO1, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
owII11I111/rr///
11
441
NOTAF .. ;
•:p_/y UBL
S EAL
My commission expires ) Q 1 1.(0\ Q0.0°ct
Form SWU-102 Rev 3.99 Page 4 of 4

Permit No. C e't / 11 l'",
(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: 714E VILLAGE AT IWAYFA10.1
Contact Person: CM UCg. TAtUB r Phone Number: (33k ) 812-8800 x 3o y
For projects with multiple basins,specify which basin this worksheet applies to: podO *2-
elevations
Basin Bottom Elevation - ft. (floor of the basin)
Permanent Pool Elevation 25.5 0 ft. (elevation of the orifice)
Temporary Pool Elevation 210.70 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 23,6).i) sq. ft. (water surface area at the orifice elevation)
Drainage Area 9.7 ac. (on-site and off-site drainage to the basin)
Impervious Area y 13 ac. (on-site and o,(f`-site drainage to the basin)
volumes
Permanent Pool Volume 7 3, 7 h9 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 30,228 cu. ft. (volume detained above the permanent pool)
Forebay Volume yr,SOO cu. ft. (approximately 20%of total volume)
Other parameters
SA/DA1 0.63 8 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 2 A " in. (2 to 5 day temporary pool draw-down required)
Design Rainfall f.5 _ in.
Design TSS Removal 2 90 % (minimum 85%required)
?orm SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 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
CPT a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
CPT b. The forebay volume is approximately equal to 20%of the basin volume.
CPT c. The temporary pool controls runoff from the design storm event.
CPT d. The temporary pool draws down in 2 to 5 days.
CPT e. if required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
calculations)
CPT f. The basin length to width ratio is greater than 3:1.
CPT g. The basin side slopes above the permanent pool are no steeper than 3:1.
CPT h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less(show detail).
CPT i. Vegetative cover above the permanent pool elevation is specified.
CPT j. A trash rack or similar device is provided for both the overflow and orifice.
CPT k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
CPT 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.
CPT 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 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:
1. After every significant runoff producing rainfall event and at least monthly:
a. inspect the wet detention basin system for sediment accumulation, erosion,trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover,mow vegetative
cover to maintain a maximum height of six inches,and remove trash as needed.
3. Inspect and repair the collection system(i.e. catch basins,piping,swales, riprap, etc.)quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75%of the original design depth(see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality(i.e.
stockpiling near a wet detention basin or stream,etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
3 .0
When the permanent pool depth reads 3.aff feet in the main pond,the sediment shall be removed.
When the permanent pool depth reads 3,38 feet in the forebay,the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
p Permanent Pool Elevation 25•S0
A
Sediment R oval El. 22.45 75 0
V Sediment Removal Elevation 22.ta5 75%
Bottom Ele ation 2I.05 t
Bottom Elevation 21.05 25%
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50%of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance,the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-IO2 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: �,11 S \t t` L ffie
Title: 1�eNt
Address: SSD Cli di 1"`Qy Q., ~ 'i 5
Phone: 000
Signature:
Date: \:112404
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, CyAs4.1..ju; Q\0�,5 , a Notary Public for the State of noA Q,�\tl q ,
County of o rfj. , do hereby certify that -3e 55t C,C L. l I_e,
personally appeared before me this day of it.)G(RC4 Q[ , gC.0 7, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
OTAR Y'
. PUB
q . ..oJ
erk
SEAL
My commission expires_ /A ii
(igct9
Form SWU-102 Rev 3.99 Page 4 of 4

: L� �'(- f � `�"
Permit No. - fl
(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
DWQ 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: TN& V,u..A6E AT MAV FAME
Contact Person: CHUCK Phone Number: (336 ) Ait-8800 X.30ij
For projects with multiple basins,specify which basin this worksheet applies to: POW) 3
elevations
Basin Bottom Elevation Zc. ft. (floor of the basin)
Permanent Pool Elevation 2S.0 ft. (elevation of the orifice)
Temporary Pool Elevation 26.3 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 26 v21 sq. ft. (water surface area at the orifice elevation)
Drainage Area 12.55 ac. (on-site and otj'-site drainage to the basin)
Impervious Area 7.36 ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume 7‘r 40/ cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume si0, soy cu. ft. (volume detained above the permanent pool)
Forebay Volume ySf 700 cu. ft. (approximately 20%of total volume))
Other parameters
SA/DAI 0.052- (surface area to drainage area ratio from DWQ table)
Diameter of Orifice Zs� in. (2 to 5 day temporary pool draw-down required)
Design Rainfall 1.5 in.
Design TSS Removal 2 90 % (minimum 85%required)
Form SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 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
CpT a. The permanent pool depth is between 3 and.6 feet(required minimum of 3 feet).
CPT b. The forebay volume is approximately equal to 20% of the basin volume.
CPT c. The temporary pool controls runoff from the design storm event.
CpT d. The temporary pool draws down in 2 to 5 days.
CPT e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
calculations)
CPT f. The basin length to width ratio is greater than 3:1.
GP'j g. The basin side slopes above the permanent pool are no steeper than 3:1.
CPT h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
CPT i. Vegetative cover above the permanent pool elevation is specified.
CPT j. A trash rack or similar device is provided for both the overflow and orifice.
CPT k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
CPT 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.
CPT 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) Xdoes 0 does not incorporate a vegetated filter at the outlet.
This system(check one) 0 does Xdoes not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion,trash accumulation,
vegetated cover,and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover,mow vegetative
cover to maintain a maximum height of six inches,and remove trash as needed.
3. Inspect and repair the collection system(i.e. catch basins,piping,swales, riprap, etc.)quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75%of the original design depth(see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality(i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 3 44- feet in the main pond,the sediment shall be removed.
When the permanent pool depth reads 344- feet in the forebay,the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
•
Permanent Pool Elevation 25.0
Sediment R oval El. .2?..o•ZL(9 75 0
' Sediment Removal Elevation 2414 n D175%
Bottom Ele ation 9 ?D.5 % -
Bottom Elevation 2I1 ZO.5 25%
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50%of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance,the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name:
y,CA L. Cf1K'
Title (u'1 ••
Address:53C) GKY\ 1" 'WOE C W
Phone: °t r ` 3 S
Signature:
Date: i ND-.
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, eati L. 0c5SG-r\ , a Notary Public for the State of U Lw Q,Qtro\ „.A
County of‘(1eW t cr L$f , do hereby certify that 3-e::.15 (Lc. V_t
personally appeared before me this day of ®se.f r , 9.6O/, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
`: AOTAg%... g' Y.�'
'94/0VFR C��```�
i now-
SEAL
My commission expires ) L Ito Igo,
Form SWU-102 Rev 3.99 Page 4 of 4

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
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : 77k Nlitt#96E AT MokrA9i/
Contact Person: Chia 7R06Y . Phone Number: (an, ) 81Z'880o )369
This worksheet applies to: Basin No. in Drainage Area 24'85 me i
(as identified on plans) (from Form SWU-101)
11. DESIGN INFORMATION -Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level(fmsl).
Soils Report Summary
Soil Type cwscr015s /0s4-re /Cso•J
Infiltration Rate 1.o in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation Z3.0 fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm .5 inch (1.5 inch event for SA waters,1 inch event for others)
Design Volume 75 861• c.f.
Drawdown Time '1 days
Basin Dimensions
Basin Size "ts ft.x ft. = 33,8Z7 sq. ft. (bottom dimensions)
Basin Volume Provided 33,8C1 c.f.
Basin Elevations
Bottom Elevation 2.6.o fmsl
Storage Elevation Z7-0 fmsl
Top Elevation 28.0 finsl
Form SWU-103 Rev 3.99 Page 1 of 3

I.
HI. 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 that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwatcr Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met,
Applicants Initials
CPT a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
Cr" b. System is located at least 100 feet from water supply wells.
e p T c. Bottom of systcm is at least 2 feet above the seasonal high water table.
CPT d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
tpT e. System is not sited on or in fill material or DWQ approval has been obtained.
CpT f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
CPT g. Drainage area for the device is less than 5 acres.
CPT h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
CpT i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters). Design volume and infiltration calculations attached.
CPT j. System is sized to take into account the runoff at the ultimate built-out potential from all
surfaces draining to the system,including any off-site drainage. Calculations attached.
C1 i k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
CPT 1. A pretreatment device such as a catch basin,grease trap,filter strip,grassed swale or
sediment trap is provided.
CPT m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
Cl'T n. Vegetated filter is provided for overflow and detail is shown on plans(Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
CPT o. Flow distribution mechanism within the basin is provided.
CPT p. A benchmark is provided to determine the sediment accumulation in the pretreatment device.
CPT q. Runoff in excess of the design volume bypasses off-line systems(bypass detail provided).
(Fr r. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw-down calculations are attached.
GPT s. Plans ensure that the installed system will meet design specifications(constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Rev 3.99 Page 2 of 3

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re-seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored
to the original design depth without over-excavating. Over-excavating may cause the required water
table separation to be reduced and may compromise the ability of the system to perform as designed.
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 stormwater treatment device or stream,
etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used
to determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads feet in the pretreatment unit,the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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 and Title n 3 3\CA �L Z+410�s pcb
Address: 5 o ( CV\CJ KVACX- .
Phone: �I ` 35 Date: t 1 112I©-"
Signature:
Note: The legally respo le 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, eouttttc. 01C)5w't , a Notary Public for the State of f0fiL Q.�l(,�County of
\() � \ do hereby certify that J�c�iC4i L &kV( personally appeared before me this to
day of r*AN1, __J , fa 1,and acknowledge the due execution of the forgoing infil>±ation basin maintenance
���uiinn��
requirements. Witness `�a d( g"al seal,
I.AN-4 l�l
_AL = c
My commission expires
Form SWU-103 Rev:� yo 0� ``�� Page 3 of 3

State Storms'ater Management Systems
Permit No. SW8 011119
The Village at Mayfaire
Stormwater Permit No. SW8 011119
New Hanover County
Designer's Certification
I, Cff:'uc's f° %A"3Y , as a duly registered Aa&$Jio IL Eli,-/EL=dr—
in the State of North Carolina, having been authorized to obsery periodica eekly/full time)
the construction of the project,
TINE 'eve(46 Ar . Xa,tE
(Project)
for 7//4 lotiA6c er^tigrA►p Lk (Project Owner)hereby state that, to the best of
my abilities, due care and diligence was used in the observation of the project construction such
that the construction was observed to be built within substantial compliance and intent of the
approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
1) 66 Y,1 J J wt. /^-ue Aa,0 ' / 4i4s �o9bQ 1)
ossmiffiese
•
., .r" ��a .;�iy`� SEAL
Signature I N.,'f'
Registration Number FL, 4984 '
gei
Date 8 d -'•• 1►O .
StsZetessie
10

State Stormwater Management Systems
Permit No. SW8 011119
Certification Requirements:
*E5 1. The drainage area to the system contains approximately the permitted acreage.
1ES 2 The drainage area to the system contains no more than the permitted amount of
built-upon area.
3. All the built-upon area.associated with the project is graded such that
drains to the system. the runoff
'S
4. The outlet/bypass structure elevations are per the approved plan.
"igs 5. The outlet structure is located per the approved plans.
Y'S 6. Trash rack is provided on the outlet/bypass structure.
Ye-5 7. All slopes are grassed with permanent vegetation.
YES 8. Vegetated slopes are no steeper than 3:1.
`IDS 9. The inlets are located per the approved plans and do not cause short-circuiting of
the system
f10. The permitted amounts of surface area and/or volume have been provided.
R-S 11. Required drawdown devices are correctly sized per the approved plans.
s 12. All required design depths are provided.
Yes l3. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
`15 14. The overall dimensions of the system, as shown on the approved plans, are
provided.
re.
t S -Ys amr c n a6 ,qs au-p6b✓E0
cc: NCDENR-DWQ Regional Office
Tony Roberts
City of Wilmington Stormwater Services
New Hanover County Building Inspections
/Sri . AS-Bwcj Lii) EtE-0t71o4 ,Jri,04 7 ft•wn PEZO S "Ei'd 4i /#7146-cA awo4
AtaiepAyex ?005V Tfk ,'0-141 cveze iefS4.-46E00 6Y E7.
6i.16E°146 44*
S4-/Erp46, /.IC, of p/61.7
11