SW5190201_AddInfo2_20190626

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Interim Director
Mr. David H. Blevins, PE
Development Engineering, Inc.
244 W. Millbrook Road
Raleigh, NC 27609
NORTH CAROLINA
Environmental Quality
June 26, 2019
Subject: Request for Additional Information
Stormwater Permit No. SW5190201
Cambridge Southeast Estates
Chatham County
Dear Mr. Blevins:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on February 28, 2019 and additional
information on June 20, 2019. A review of that information has determined that the application
is not complete. The following information is needed to continue the stormwater review:
1. Table 1 of the low density supplement must be completed to show the allowable
velocities in the swales or calculations for actual and allowable shear stress must be
submitted to ensure that the swales are stable during the 10-year storm.
2. Unless it to be seeded or otherwise vegetated, jute mat is not an acceptable surface for the
swales. 15A NCAC 02H .1003 requires the use of vegetated conveyances.
3. The original signed copy of the low density supplement must be submitted.
4. The plans should show the swales as being recorded in a permanent drainage easement.
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/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 25, 2019, 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 SW5190201 on all correspondence.
DNorth Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
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_ 512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
NORTH CAROLINA
Department or Emironmeatal mail� 919.707.9200

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(d),ncdenr.gov or [phone].
Sincerely,
�� &I,--
Corey Anen
Environmental Engineer
Stormwater Program
cc: Raleigh Regional Office