SW3210403_Add Info_20210525

ROY COOPER
Governor
DIONNE DELLI-GATTI
Secretary
BRIAN WRENN
Director
Patrick Needham, PE
8020 Tower Point Drive
Charlotte, NC 28227
NORTH CAROLINA
Environmental Quality
May 25, 2021
Subject: Request for Additional Information
Stormwater Permit No. SW3210403
233 Randolph 74 Solar I, LLC
Cleveland County
Dear Mr. Needham:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on April 26, 2021. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
Please provide a copy of the lease agreement between the Property Owner, "Heelstone
Land Holdings, LLC", and the Permittee, "233 Randolph 74 Solar I, LLC" (Section III,
IC).
2. Please provide Property Owner contact information (Section III, 2) and Property Owner
authorization (Section IX) for the adjacent property (owned by Wal-Mart) since a portion
of the project area/proposed access road will be located on this property.
3. Please elaborate on the stormwater treatment that will be provided for this site (Section
IV, 1). While there will not be any proposed constructed stormwater control measures,
there are still design elements (Outlined in Part E-1 & E-6 of the Stormwater Design
Manual) that need to be met and should be mentioned in this Section.
4. Since this project is designed as a low -density project, the "drainage area" outlined in
Section IV, 10 of the Application is actually the project area (See note in Section IV, 9).
Since the "drainage area" is the project area, there is no off -site component to the
drainage area.
5. Since there are no off -site areas for this project, Section IV, 11 of the Application is not
needed.
D E Q�� 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 OAROLINA _
Depar ntofEnvimnmmdlDwllry 919.707.9200

6. Please complete and provide an original signed hardcopy of both the Supplement-EZ
Form and the O&M Agreement Form (Section V & Section VI, 3). These forms can be
found at the following address: htlps:Hdeq.nc.gov/about/divisions/energy-mineral-land-
resources/energ_y-mineral-land-permit-guidance/stormwater-bmp-manual. Since solar
farms have special design requirements (Outlined in Part E-6 of the Stormwater
Design Manual), it is recommended to include these extra conditions in the 0&M
Agreement Form as a User Defined SCM (in addition to the Low -Density option).
Please see attached example of a previously permitted solar farm's 0&M Agreement
to get an idea of what should be put into the user defined portion of the O&M
Agreement Form.
NOTE: These spreadsheets contain macros that will generate the required pages of
these forms once the information on the cover sheet has been entered.
7. Please provide design calculations showing how the built upon area associated with the
solar panel footings/foundations is determined (Section VI, 7). While the panels
themselves can be considered pervious if designed in accordance with Part E-6 of the
Stormwater Design Manual, the footings/foundations are still considered BUA and
should be accounted for as such.
8. Please dimension the project area with bearings and distances in the main set of plans
(Section VI, 8i).
9. Please identify/call-out the surface area of all BUA in the main set of plans (Section VI,
8j). The BUA surface area information entered into the Application and Supplement-EZ
Form should be able to be verified on the plans in the field. You may wish to incorporate
a BUA table, similar to the one in Section IV, 10 listing the BUA surface areas by type.
10. Please delineate the wetlands in the main set of plans or provide a note on the plans
stating that no on -site wetlands exist. Provide documentation of the qualifications and
identity of the individual who made this determination (Section VI, 8m).
11. Please show the drainage areas to the proposed permanent swales in the main set of plans
(Section VI, 8o).
12. Vegetated conveyance side slopes should not be steeper than 3:1 (15A NCAC
02H .1003(2)(c)). If steeper slopes are proposed, please provide an on -site soil
investigation showing that the soils will remain stable. Please also ensure that the
vegetated conveyances are vegetated (i.e. not riprap lined).
13. Please provide a note on the plans stating that the subsoils should not be compacted
during the installation of the solar panels. If the soils will be compacted, then place a note
on the plans stating that the soils should be tilled/amended so that they can be returned to
their pre -compaction condition (Solar Panel Recommendation 1).

14. Please provide a detail of the solar panels showing the spacing between panels (Solar
Panel Recommendation 2), vertical clearance (Solar Panel Recommendation 6), and solar
panel footprint/foundation size.
15. Please provide a slope map showing the slope of the ground in the vicinity of the solar
panels (Solar Panel Recommendation 2).
16. Please ensure that the proposed grasses to be planted under the solar panels are a mix of
warm & cool season grasses (Solar Panel Recommendation 5).
17. Provide pdfs of all revisions, 2 hardcopies of revised plan sheets, and 1 hardcopy of other
documents.
a. Pdfs must be uploaded using the form at:
hgps://edocs.deq.nc.gov/Forms/SW Project Submittal
b. Hard copies must be mailed or delivered to the following address:
Jim Farkas
512 N. Salisbury Street
1612 Mail Service Center
Raleigh, NC 27699-1612
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 June 24, 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 SW3210403 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,
)emVI - jwt-�
Jim Farkas
Environmental Engineer
Stormwater Program

cc: Mooresville Regional Office