AddInfoRequest

Energy, Mineral &
Land Resources
ENVIRONMENTAL QUALITY
March 27, 2017
Mr. Robert Cash, PE
Cardno
9800 Southern Pine Blvd., Ste. I
Charlotte, NC 28273
Subject: Request for Additional Information
Stormwater Permit No. SW3170304
Addington Crossing Subdivision
Union County
Dear Mr. Cash:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
TRACY DAVIS
L)11 ector
The Division of Energy, Mineral, and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on March 20, 2017. A preliminary
review of that information has determined that the application is not complete. The following
information is needed to continue the stormwater review:
1. Please provide a copy of the JD from USACE.
2. On SWU-101 item IV.10, complete the table with all DA and impervious area
information.
3. The person signing the applications, deed restrictions, and O&M agreement must be an
officer of the company as listed on the NC Sec. of State's website. Or provide a signed
letter for one the officers listed giving Brian Johnson signature authority.
4. Remove the "Preliminary — Not for Construction" note on the plans. Plans for the permit
must be final plans.
5. Fill-in the max BUA for each lot on the deed restrictions form.
6. The O&M Agreement is missing pages that show the maintenance table and SCM
maintenance details.
7. Since the project proposes handling runoff predominantly using storm drainage piping,
SCM's, and is not dispersing flow, it must meet all of the high density requirements and
MDC's in the SCM Design Manual and the revise 2017 rules. Revise the SCM's to be
Nothing Compares..h_
SState of North Carolina I Environmental Quality I Energy. Mineral and Land Resources
512 N. Salisbury Street 1 1612 Mail Service Center I Raleigh, North Caro[ina 27699-1612
919 707 9200

from the list of primary SCMs to treat the water quality volume (1"). Dry ponds are
secondary SCM's. Provide supporting calculations for the SCM water quality designs.
8. Submit supplement forms for the SCMs. The new Supplement EZ can be found on our
website: https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/energy-
mineral-land-permit-guidance/stormwater-bmp-manual
9. The calculations must be sealed, signed, and dated.
10. If proposing LID per page 5-4 of the SMP, you must submit the Storm -EZ form and
show volume matching.
11. Due to the nature of the above comments, additional comments may be forthcoming once
revisions are submitted.
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 April 27, 2017, or the
application will be returned as incomplete. The return of a project will necessitate resubmittal of
all required items, including the application fee.
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.
Please reference the State assigned project number SW3170304 on all correspondence. If you
have any questions concerning this matter please feel free to contact me at
Robert.Pattersonkncdenr.gov or [phone].
ec: Mooresville Regional Office
Brian Johnson — CalAtlantic
Sincerely,
Robert D. Patterson, PE
Stormwater Engineer
Stormwater Permitting Program
Nothing Compares_
State of North Carolina Environmental Quality I Energy. Mineral and Land Resources
512N. Salisbury Street Ib12 Mail Service Center I Raleigh, North. Carolina 27699-lb12
919 707 9200