AddInfoRequest - Knapheide Gravel

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
July 2, 2018
Mr. Nicholas R. Parker
Amicus Partners, PLLC
7140 Weddington Rd. Suite 140
Concord, NC 28027
Subject: Request for Additional Information
Stormwater Permit No. SW3180601
Knapheide Gravel Storage Lot — Midland, NC
Cabarrus County
Dear Mr. Parker:
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 1, 2018. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
Please upload electronic copies of the design plans, application, and other supporting
documents using the following link:
hqps:Hedocs.deg.nc.gov/Forins/SW Project_ Submittal
2. The supplemental form that was submitted for the sand filter is not up to date. Please
complete the new supplemental form that was updated 3/29/2017. This form can be found
at: https:Hdeq.nc.gov/sw-bmp-manual.
3. General MDC 12 requires all SCMs to have an Operation and Maintenance Plan. The
plan can be automatically generated using the Department's O&M EZ form at
hLtps:Hdeg.nc.gov/sw-bmp-manual.
4. Please revise the SCM design to address the following deficiencies:
a. Provide an access and maintenance easement that extends to the nearest public
right of way (General MDC 8 & 9).
b. Remove the specification for sod on the sand filter. The only acceptable cover for
a sand filter is clean, washed stone.
c. The storage volume in the sediment chamber and the sand chamber must be
equivalent (Sand Filter MDC 2).

5. 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 August 1, 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 SW3180601 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].
Sincerely,
Corey Anen
Environmental Engineer
Stormwater Program
ec: Mooresville Regional Office
Chris Todd — Knapheide Truck Equipment Center
Nothing Compares.
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
512 N. Salisbury Street 1 1612 Mai Service Center I Raleigh, NorthCaroiina27699-1612
919 707 9200