SW6180602_Add Info Permit_20180614

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
June 14, 2018
Mr. Jason Sesler, PE
Stantec Consulting Services, Inc.
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
Subject: Request for Additional Information
Stormwater Permit No. SW6180602
Linden 230 kV Substation — Erwin, NC
Harnett County
Dear Mr. Sesler:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
WILLIAM E. TOBY VINSON, JR.
Interim Director
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on June 4, 2018. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
For No. 57 stone to be considered pervious it must be at least 4" thick and over a
geotextile. Because of the compacted ABC stone subgrade, this would be considered
impervious. Also, it is strongly recommended to not compact the subgrade. Please update
the BUA tables in the application or revise the plans to meet these requirements.
2. The low density regulations require the maximization of dispersed flow through
vegetated areas wherever possible. Stormwater that cannot be released as dispersed flow
must be transported by vegetated conveyances. Is there justification for why stormwater
cannot be released as dispersed flow?
3. As mentioned above, stormwater conveyances on low density sites must be vegetated.
The proposed stone channels do not meet this requirement.
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:
https:Hedocs.deq.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 July 14, 2018, 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 SW6180602 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].
Sincerely,
�& % 64'—
Corey Anen
Environmental Engineer
Stormwater Program
cc: Fayetteville Regional Office
Rodney Hutcherson – Duke Energy Progress, LLC
Reuben Jones – Duke Energy Progress, LLC
Nothing Compares.
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
512 N. Salisbury Street 1 1612 Maii Service Center I Raleigh, Nort hCaroiina27699-1612
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