SW3201002_Add Info Request_20201210

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Acting Director
Jonathan Woodard, PE
McAdams
3430 Toringdon Way
Charlotte, NC 28277
NORTH CAROLINA
Environmental Quality
December 10, 2020
Subject: Request for Additional Information
Stormwater Permit No. SW3201002
7 Eleven Long Ferry Road
Rowan County
Dear Mr. Woodard:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on October 21, 2020. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
The existing gravel areas on site should not be considered existing BUA. Gravel areas
that do not receive significant vehicular traffic and are not compacted by the weight of
vehicles are exempt from the definition of built -upon area [NCGS 143-214.7(b2)].
2. Based on the grading of Long Ferry Road, there will be runoff from off -site built -upon
area draining onto the site. This must be delineated and included in the total BUA.
3. Please revise Page 1 of the SWU-101 application to specify the county in which the
project is located.
4. Please complete the "Entire Site" column on Page 2 of the Supplement EZ spreadsheet.
5. Please explain why multiple property owners are listed in the application. The deed, as
well as Rowan County GIS, list only James E. Epting as the sole property owner.
6. Please show a maintenance access and easement on the plans that conforms to General
MDC 8 and 9 [15A NCAC 02H .1050(8) & (9)].
7. Please submit a geotechnical investigation verifying that the separation from the bottom
of the sand filter to the seasonal high water table is greater than or equal to 2 feet [I 5A
NCAC 02H .1056(1)].
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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Dopanmam f Environmental Quality /� 919.707.9200

8. The Grading and Drainage Plan (Sheet C3.00) shows the trench drains on the south and
east side of the project to drain to CB-102 and JB-108, respectively. Please label these
and any other drainage features on the plan.
9. The permanent seeding plan on Sheet C 9.00 specifies tall fescue for the slopes of the
basin and top of the berm, but the detail on the same sheet shows Bermudagrass on the
slopes. Please correct this discrepancy.
10. The water quality volume was calculated using the wrong built -upon area percentage
(70.1% vs. 77.65% as delineated).
11. The calculations show the water quality depth as 0.94', but the detail on Sheet C9.01
shows it as 0.66'. Please correct this discrepancy.
12. 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:
hltps:Hedocs.deq.nc.gov/Forms/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 January 9, 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 SW3201002 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&ncdenr. _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,
�*V� 64---
Corey Anen
Environmental Engineer
Stormwater Program
cc: Mooresville Regional Office