SW5190701_Add Info Request_20190809

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Chad Abbott, PE
2537 E. Lyon Station Road, Suite 102
Creedmoor, NC 27522
NORTH CAROLINA
Environmental Quality
August 9, 2019
Subject: Request for Additional Information
Stormwater Permit No. SW5190701
Siler School Square
Chatham County
Dear Mr. Abbott:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on July 11, 2019. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
The project site is located within 5 miles of Siler City Municipal Airport (SCR). Please
correct the application and verify that all relevant rules and regulations are adhered to
(Section II, 5).
2. It appears, from the provided letter from Dan LaMontagne, that the applicant will become
the owner of the project (Making the applicant a purchaser). Please correct Section III,
Lc to reflect this and include a pending sales agreement.
3. Since the project is high density and there is only one proposed SCM, the total number of
drainage areas should be 1. Please revise (Section IV, 9).
4. Please include the stream name and classification for the drainage area. Please also
remove the extraneous drainage areas (Section IV, 10).
5. Please include the original, signed and notarized O&M Agreement (Section V).
6. Please provide a delineation of the existing BUA, similar to the proposed BUA
delineation included in the stormwater management (Section VI, 7).
7. Please provide details of the proposed SCM in the plan set (Section VI, 8.1). The Filterra-
specific MDCs cannot be verified based on the provided information.
D EQ North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
NORTH CAROLINA _
o.PaWnamofEnvironmental Quality /� 919.707.9200

8. Please delineate the wetlands on the plans or provide a note stating that no wetlands exist.
Provide documentation of the qualifications and identity of the individual who made this
determination (Section VI, 8, m).
9. Please show the drainage area to the SCM on the plans (Section VI, 8, o). Please also
show the off -site contour lines so the off -site drainage area may be verified.
10. Please include a soils report based on an actual site visit showing the seasonal high-water
table elevation for the area where the SCM is proposed (Section VI, 9).
11. Please provide riprap sizing calculations showing that the discharge point downstream of
the outlet of the SCM is stable during the 10-year storm (General MDC 4).
12. Please include a maintenance access and easement for the proposed SCM (General MDC
8 & 9). The easement should be shown on the plans.
13. 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://edocs.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 September 8, 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 SW5190701 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
[e-mail] or [phone].
Sincerely,
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Jim Farkas
Environmental Engineer
Stormwater Program

cc: Raleigh Regional Office