SW6201101_Add Info Request_20201207

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Acting Director
Dan Saltsman, PE
Stantec Consulting Services
801 Jones Franklin Road #300
Raleigh, NC 27606
NORTH CAROLINA
Environmental Quality
December 7, 2020
Subject: Request for Additional Information
Stormwater Permit No. SW6201101
Military Working Dog Facility PN 752426
Cumberland County
Dear Mr. Saltsman:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on November 19, 2020. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
Please provide a plan that clearly labels all BUA within the project area, including the
BUA that drains to the infiltration system, existing BUA, and offsite BUA. Based on the
drainage area plan (SWM 102), the BUA draining to the SCM appears to be much lower
than reported in the application, calculations, and Supplement EZ. The existing BUA
within the drainage area also appears to be larger than reported on the application form
(3,265 sf).
2. According to the Supplement EZ, the infiltration basin does not treat the net increase in
BUA as required by 15A NCAC 02H .1003(3)(d). The form says that the new BUA on
the entire site is 61,544 sf as opposed to 44,391 sf treated by the infiltration basin.
3. The design volume reported in Field 2 of the infiltration basin Supplement EZ sheet is
less than the calculated minimum design volume (5,180 cf vs. 7,796 cf).
4. Please provide a detail of the infiltration basin that meets the requirements of 15A NCAC
02H .1042(2)(h).
5. Please add a note that states that the infiltration will be cleaned out after construction and
converted to its approved design state [15A NCAC 02H .1050(7)]. Please also complete
Field 10 of the infiltration basin Supplement EZ sheet.
D EQ�� North Carolina Department of Environmental Quality Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Service Center Raleigh, North Carolina 27699-1612
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6. Some of the runoff from the BUA is collected in catch basins and discharged directly into
the infiltration basin without pretreatment. Pretreatment is required for all runoff
discharged into an infiltration system [15A NCAC 02H .1051(4)].
7. 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:
hgps:Hedocs.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 January 6, 2021, 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 SW6201101 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.Anen(cncdenr.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,
Corey Anen
Environmental Engineer
Stormwater Program
cc: Fayetteville Regional Office