SW6140302_Cover Letter & Permit_20140424

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
April 24, 2014
Ms. Lorraine Mohler
GHM Group, LLC
7670 Raeford Road
Fayetteville, North Carolina 28304
Subject: Stormwater Permit No. SW6140302
West Hampton Phase II Subdivision
High Density Wet Detention Basin Project
Hope Mills, Cumberland County
Dear Ms, Mohler:
John E. Skearla, III
Secretary
OCT 1 6 ?cir
The Stormwater Permitting Unit received a complete package for the West Hampton Phase II
Subdivision project on April 21, 2014. Staff review.of the plans and specifications has determined
that the project, as proposed, will comply with the Stormwater, Regulations set forth in Title 15A
NCAC 2H.1000 and Session Law 2006-246. We are forwarding this-Stormwater Management
Permit No. SW6140302, issued April 24, 2014, for the construction, operation and maintenance of
the subject project and the stormwater BMPs.
this permltexpiration'date.shalt not change 'and shall be effective from the original date of
issuance until April 24; 2022, and shall be subject to the conditions,,and limitations as'specified
therein,.and does not supersede any other agency permit that may be'required Please;pay special
�iio hnn'rri'ri;a,�nrirlaltinc" �icteii+In this nermitredardina.the'Ooerall onlMaintenahce,of the
'If any parts,;requirements otlimitations 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 150E of the North Carolina General
Statutes. Per NCGS 143-215(e) the petition 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 67:14 Mail Service Raleigh,
ntr; h�aoo_a9�d. vlaaeianlion2`:af,91g-431-30D0.-orvlstt thejr website at.www-NGOAH;com>
Unless such demands are made this permit shall be final
1612 Mail Service Center,, Raleigh, North Carolina 27699-1612
Phone: [phone]Internet: www.ncdenr.gov'
An Equal Opponunily \ Affirmative Action Employer- Made in part by recycled paw

After thirty days from the date of this letter, this project will be kept on file at the NCDENR Division
of Energy. Mineral and. Land Resources, Land Quality Section, Winston-Salem Regional Office. If
you have questions after that time, please contact Brad Cole, [e-mail] or Mike
Lawyer, mike.lawyer(a)ncdenr.gbv, of that office. Until that time, if you have any questions or need
additional information concerning this permit, please contact Bill Diuguid at [phone], or
[e-mail]. I
Sincerely,
Original Signed by William H. Diuguid'
i
William H. Diuguid, AICP, Plans Reviewer
for Tracy, E. Davis, P.E., CPM
Director, Division of Energy,
Miheral and Land Resources
cc: NCDENR DEMLR Fayetteville, Regional_ Office
Central Files
Stormwater Permitting Unit Files
i,
Attachments
I
U

State Stormwater Permit
Permit No.SW6140302
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND. NATURAL. RESOURCES
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMINATER,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
GHM.Group, LLC
West Hampton Phase II Subdivision
End of Princess Amelia Lane
Hope Mills area, Cumberland County
FOR THE
This permit shall be effective from the date of issuance until April 24, 2022, 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;
designed to handle the
has
rea.
r
The tract will be limited to the amount of built -upon area indicated in Section 1.7
of this permit, and per approved plans.
:4;.
will be recorded showing all such required easements, in accordance with
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 1 of 6

State Stormwater Permit
Permit No.SW6140302
M
7'.
The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
The following design criteria have been provided in the two wet detention basins
and must be maintained at design condition:
Basin #1
Basin #2
a'.
Drainage Area,:aSres:
26.6
10.1
Onsite, ft-;
868,550
415,212
Offsite, ft,,i
288,580
25,449
Total Impervioys Surfaces, ft21.
356,178
134,087
Buildings ft :
150,000
81,o00 -,
Roads/Parking, ft2:
196,178
53,087
Other, ft2
Offsite, ft2:
10,000
10
C.
Pond Depth, feet:
7.08
6.21
d:;
TSS removal efficiency:
90%
90%
e.
Design Storm: inches
1.0
1.0
f;
Permanent Pool Elevation, FMSy
99.10
111.50
g.
Permitted Surface Area @PP ft :
21,032
8,491
h.,
Permitted Storage Volume, ft,>'
52,135
12,368 _.
is-
Storage Elevation, FMSL: '
101.18
112.71
j.
Controlling Orifice: inches
3.25
3.25
It.,
Permanent Pool VQIume, W:
68,311
25,011
I:.
Forebay Volume, ft:
14,445
4,520
m.
Receiving Stream/River Basin:
Rockfish Creek / Cape Fear
n.
Stream Index Number:
18-13-(18)
18-13-(18)
o.
Classification of Water:Body:
"B".=
"B"
II. SCHEDULE OF COMPLIANCE
1'. Th'e stormwater managemeksystem shall be cohstructed in its entirety,
' e,etated and operational for its intended use prior to the completion;of_ any_
built -upon surface and•the issuance of any certificate of occupancy.
2: During construction, erosion shall be -kept to a minimum and any eroded areas of
the system will be repaired immediately.
1. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months)..
b. Sediment removal.
c: Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of erodedWeas.
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.
Records of'maintenance activities.must be kept and made available upon
request to authorized personnel of DEMLR. The records will indicate the date,
Page.2 of 6

State Stormwater Permit
Permit No.SW6140302
activity, name of person performing the work and what actions were taken.
.51 The stormwater treatment system shall be constructed in accordance with the
approved plans and specifications, the conditions of this permit, and with other
supporting data.
T.
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.
$[ Access to the stormwater facilities shalrbe maintained via appropriate
easements at all times.
9 The permitteeshall submit to the'Director'and shall Have received approval°foP
revised plans;:specifications, a ndcalculations,prior.fo construction„ orany
modification to the approved plans, including, but not limited to, those listed
below:
a.. Any revision fo any here shown on'the�a ptoved plans,' including the,
stormwater management,measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area,
e. Further, subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,.
for which Sedimentation and Erosion Control Plan approval or a CAMA
Ma
wassought
f; Filling rn;;altenng,`or piping of any.vegetative conveyance; shown on tha.
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
1.1... A copy of the approved plans and specifications.shall be maintained on file by
the Permittee for a minimum. of ten years from the date of the completion of
construction.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
III. GENERAL CONDITIONS
1. This permit is not transferable except after notice to and approval by the Director.
In the event of.a change of'ownership, or a name change, the permittee_must
iumentation as listed on page-2 of the form. The
Page 3 of 6

State,Stormwater Permit
.Permit No.SW6140302
project must be in good. standing with the. Division. The approval of this request
.will be considered on its merits and may or may not be approved.
2i The permittee is responsible.for'compliance with all permit conditions until such
time as the Division approves the1ransfer request.
S: Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the -Division of Energy, Mineral
andLand Resources, Land Quality Section, in accordance with North Carolina
General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does.not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
5: In the event that the facilities fail to perform satisfactorily, including the creation
r of nuisance conditions, the Permittee shall take imniediate.corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwatermanagement systems.
6; The permittee grants DENR Staff permission to enter the property during normal
business hours for -the purpose of inspecting all components of the permitted
stormwater management facility.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a -permit modification, revocation and re -issuance or
termination does not stay any permit condition.
Unless specified elsewhere, permanent seeding requirements for the.stormwater
control must follow the guidelines established in the North_ Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10.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
as allbwed,by the,laws,: rules.and reggulations contained in Session Law 2006-
246 Tdle 15A.'NCAC2M,IOOO;iand'NCG5143-215,1 et.al.
11. The permittee shall notify the Division of any name, ownership or mailing
address changes at least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and
documentation at least 180 days prior to the expiration date of this permit.
Permit issued this the 24`h day of April, 2014.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Original Signed by William H. Diuguid 1.11
William H. Diuguid, AICP, Plans Reviewer
for Tracy E: Davis, P.E., CPM, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 4 of 6

State Stormwater Permit
Permit No.SW6140302
West Hampton Phase II Subdivision
Stormwater Permit No. SW6140302
Cumberland Count4
Designer's Certification
as a duly registered,
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
West Hampton Phase II Subdivision, end of Princess Amelia
area
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page,2 of this form is included.in the Certification.
Noted deviations from approved plans.and specification:
Signature
Registration Number
Date
SEAL
Page 5 of 6

State Stormwater Permit
Permit No.SW6140302
Certification Requirements:
1t The drainage area to the'system contains approximately the permitted
acreage.
2 The drainage area to the system contains no.more than the permitted
amount of built -upon area.
3: All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4 All roof drains are located such that the runoff is directed .into the system.
5; The outlet/bypass structure elevations are per the approved plan.
6 The outlet structure is located per the,approved plans.
7.. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9., Vegetated slopes are no steeper than 3:1.
1.0.., 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.
12.. Required drawdown devices are correctly sized per the approved plans.
13.- All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15.. The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to: Brad Cole/Mike Lawyer,
NCDENR DEMLR
Fayetteville.Regional Office
Land Quality Section
225 Green Street, Suite 7.14
Fayetteville, NC 28301
Page 6 of 6