NCC214081_ESC Approval Submitted_20210713

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
July 10, 2021
LETTER OF APPROVAL WITH MODIFICATIONS
RPM Wood Finishes Group, Inc.
ATTN: Mr. Johnny Green
2220 US HWY 70 SE Ste 100
Hickory, NC 28602
RE: Project Name: RPM Wood Finishes Group Phase 2
Acres Approved: 3.34
Project ID: CALDW-2021-031
County: Caldwell
City: Hudson
Address: US 321
River Basin: Catawba
Stream Classification: UT of Gunpowder Creek - WS-IV
Submitted By: Mr. Justin C. Church
Date Received by LQS: June 10, 2021
Plan Type: Industrial
Dear Mr. Green,
This office has reviewed the subject erosion and sedimentation control plan and hereby
issues this Letter of Approval with Modifications. A list of the modifications is attached. This
plan approval shall expire three (3) years following the date of approval, if no land -
disturbing activity has been undertaken, as is required by Title 15A NCAC 413.0129. Should
the plan not perform adequately, a revised plan will be required (G.S. 113A-54.1)(b).
As of April 1, 2019, all new construction activities are required to complete and submit an
electronic Notice of Intent (eN01) form requesting a Certificate of Coverage (COC) under the
NCGO10000 Construction General Permit. After the form is reviewed and found to be
complete, you will receive a link with payment instructions for the $100 annual permit fee.
After the fee is received, you will receive the COC via email. You MUST obtain the COC prior
to commencement of any land disturbing activity. The eNOI form may be accessed at
D—EQ A North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
J Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778
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Letter of Approval with Modifications
RPM Wood Finishes Group Phase 2
ATTN: Mr. Johnny Green
July 10, 2021
Page 2 of 4
deq.nc.gov/NCG01. Please direct questions about the eNO1 form to Annette Lucas at
[e-mail] or Paul Clark at [e-mail]. If the owner/operator
of this project changes in the future, the new responsible party is required to apply for
his/her own COC.
Title 15A NCAC 413.0118(a) and the NCG01 permit require that the following documentation
be kept on file at the job site:
1. The approved E&SC plan as well as any approved deviation.
2. The NCG01 permit and the COC, once it is received.
3. Records of inspections made during the previous 12 months.
Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic
inspection to insure compliance with the approved plan.
North Carolina's Sedimentation Pollution Control Program is performance -oriented,
requiring protection of existing natural resources and adjoining properties. If, following the
commencement of this project, it is determined that the erosion and sedimentation control
plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of
1973 (North Carolina General Statute 113A-51 through 66), this office may require revisions
to the plan and implementation of the revisions to ensure compliance with the Act.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and
State water quality laws, regulations, and rules. In addition, local city or county ordinances
or rules may also apply to this land -disturbing activity. This approval does not supersede
any other permit or approval.
Please note that this approval is based in part on the accuracy of the information provided
in the Financial Responsibility Form, which you provided. This permit allows for a land -
disturbance, as called for on the application plan, not to exceed the approved
acres. Exceeding the acreage will be a violation of this permit and would require a revised
plan and additional application fee. You are requested to file an amended form if there is any
change in the information included on the form. In addition, it would be helpful if you notify
this office of the proposed starting date for this project.
Your cooperation is appreciated.
rtant
thgi nal Engineer
Land Quality Section

Letter of Approval with Modifications
RPM Wood Finishes Group Phase 2
ATTN: Mr. Johnny Green
July 10, 2021
Page 3 of 4
Enclosures: Certificate of Approval
NPDES NCG01 Fact Sheet
Modifications
ec: Mr. Justin C. Church, P.E. [e-mail]
cc: Regional Office file
For final plan approval, on or before Friday, July 30, ,2021 please provide to this office
the requested information and/or plans sheets.
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: RPM Wood Finishes Group Phase 2
Project ID: CALDW-2021-031
County: Caldwell
In accordance with plan detail 5/C900, note 7 on plan sheet C900, please provide
on the plans a pump around detail and associated implementation sequence for
replacing the existing 60" CMP in the unnamed tributary of Gunpowder Creek.
Include in the plan details of the impervious dikes, sandbags or other devices to be
used in the upstream and downstream areas of the pump around operation. Please
add notes that the pump should discharge onto a stable velocity dissipater. Please
include in the details and the operation sequence that water pumped from the work
area should be pumped into a sediment filtering measures such as a dewatering
basin, sediment bag or other measure. Please include a construction detail of the
measure to be used for this dewatering operation. {G.S. 113A-57 (3)1.
2. Please provide the design calculations for Pipe 1 and 2 and the associated outlet
energy dissipaters, showing that the exit velocity of the discharges are at non -
erosive velocities. {G.S. 13A-57 (3)}.
3. To prevent erosion from the channelized flow during major precipitation events,
please consider adding a velocity dissipater at the outlet of the long perimeter clean
water diversion (CWD) at the north end of the project. {G.S. 113A-57 (3)1.
4. If available, please provide on the grading plan sheet or phase 1 ESC plan sheet, the
existing topographical elevations prior to grading the site. {G.S. 113A-57 (3)}.
Ref: G.S. 113A-54.1 through G.S. 113A-57

Letter of Approval with Modifications
RPM Wood Finishes Group Phase 2
ATTN: Mr. Johnny Green
July 10, 2021
Page 4 of 4
Sections 15A NCAC 04A.0101 through 15A NCAC 04E.0504
General Permit NCG 010000 NPDES for Construction Activities