SW6200802_Add Info Request_20200909

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Acting Director
Jeffrey A. Nobles, PE
Larry King & Assoc., RLS, PA
1333 Morganton Road, Suite 201
Fayetteville, NC 28305
NORTH CAROLINA
Environmental Quality
September 9, 2020
Subject: Request for Additional Information
Stormwater Permit No. SW6200802
Sheffield Farms — Section Five
Cumberland County
Dear Mr. Nobles:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on August 17, 2020. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
1. Please add the contact information for the local jurisdiction for building permits to the
SWU-101 application form.
2. The application form and stormwater narrative state that the project area is 15.65 acres.
This seems much larger than the property boundaries shown on Sheet C-01. Please revise
or explain the discrepancy.
3. The plans show that there are 36 proposed lots, while the stormwater narrative states that
there are 35. Please revise or explain the discrepancy.
4. The deed restriction form lists the maximum BUA on each lot as 4000 sf. At 35 lots, this
is a total of 140,000 sf of BUA. However, the wet pond is only designed for 123,000 sf of
BUA. All BUA on the site must be treated in a primary SCM.
5. The calculations show that the depth from the temporary pool to the permanent pool is
1.5 feet. However, the drawdown calculations use an h/3 value of 0.33 feet. Please revise
the calculations and, if necessary, the design to use the proper head.
6. The slope of the vegetated shelf on the SCM details and in the Supplement EZ form is
10:1, rather than the 6:1 slope proposed on the plans and calculations.
D E Qbi�� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
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7. The planting plan proposed shrubs on the vegetated shelf However, Wet Pond MDC 11
requires that the vegetated shelf be planted with herbaceous, native vegetation. Shrubs are
not anywhere on the vegetated shelf or embankment of the wet pond.
8. Provide pdfs of all revisions, 2 hardcopies of revised plan sheets, and 1 hardcopy of other
documents. Pdfs must be uploaded using the form at:
htips:Hedoes.deg.nc.gov/Forms/SW_Project Submittal
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received by this Office prior to October 9, 2020, or
the application will be returned as incomplete. The return of a project will necessitate
resubmittal of all required items, including the application fee. Please reference the State
assigned project number SW6200802 on all correspondence.
If you need additional time to submit the information, please submit your request for a time
extension to the Division at the contact below. The request must indicate the date by which you
expect to submit the required information. The Division is allowed 90 days from the receipt of
a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
If you have any questions concerning this matter please feel free to contact me at
Corey.Anengncdenr.gov or [phone]. Please note that due to the ongoing Covid-19
pandemic, I will be teleworking and will be most easily reached by email.
Sincerely,
6&u'� &I -
Corey Anen, PE
Environmental Engineer
Stormwater Program
cc: Fayetteville Regional Office