SW1191202_Add Info Request_20200228

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Acting Director
Kai Burk, PE
Bowman Consulting
950 North Point Parkway, Suite 200
Alpharetta, GA 30004
NORTH CAROLINA
Environmental Quality
February 28, 2020
Subject: Request for Additional Information
Stormwater Permit No. SW1191202
Circle K Mills River (Jeffress Rd)
Henderson County
Dear Mr. Burk:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on December 2, 2019. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
1. To meet the runoff treatment requirements, the entire water quality volume must be
treated by a Primary SCM. The StormTech Isolator Row is not an approved device to be
used as a Primary SCM and thus cannot be used to meet the runoff treatment standard.
2. Please provide calculations showing that the inlets and outlets of any SCMs are protected
from erosion during the peak flow from the 10-year storm event (General MDC 4).
3. Please show a maintenance access and easement that meets the requirements of General
MDCs 8 and 9.
4. 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:
hqps:Hedocs.deg.nc.gov/Forins/SW ProjectSubmittal
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 March 30, 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 SW1191202 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
D North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
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512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
NORTH CAROLINA —
Oepad—t of Environmental puall /`� 919.707.9200

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.Anen(d),ncdenr.gov or [phone].
Sincerely,
C& 4 —
Corey Anen
Environmental Engineer
Stormwater Program
cc: Asheville Regional Office