NCC232807_ESC Approval Submitted_20230919

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
DOUGLAS R.ANSEL '4�
Interim Director NORTH CAROLINA
Environmental.Quality
August 10, 2023
LETTER OF APPROVAL WITH MODIFICATIONS
Duke Energy Carolinas, LLC
Attention: David Dellario, G.M. CCP Project C.W.
526 South Church Street
Charlotte,North Carolina 28202
RE: Project Name: Marshall Phase 3 Industrial Landfill (Phases 1-3)
Acres Approved: 13.3
Project ID: CATAW-2024-001
County: Catawba, City: Sherrills Ford
Address: 8320 NC Hwy 150
River Basin: Catawba
Stream Classification: Other
Submitted By: John Bove, PE, AECOM
Date Received by LQS: July 11, 2024
Plan Type: New
Dear Mr. Dellario:
This office has reviewed the subject erosion and sedimentation control plan. We find the plan to be acceptable
with modifications and hereby issue this letter of Approval with Modifications. The Modifications Required for
Approval are listed on the attached page. 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 4B .0129.
As of April 1, 2019, all new construction activities are required to complete and submit an electronic Notice of
Intent (eNOI) 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 processed, you will receive the COC via email. As the
Financially Responsible Party shown on the FRO form submitted for this project,you MUST obtain the COC
prior to commencement of any land disturbing activity. The eNOI Rhin may be accessed
at deq.nc.gov/NCG01. Please direct questions about the eNOI form to the Stormwater Program staff in the
Raleigh central office. If the owner/operator of this project changes in the future, the new responsible
party must obtain a new COC.
Title 15A NCAC 4B .0118(a) and the NCGO1 permit require that the following documentation be kept on file
at the job site:
North Carolina Department of Environmental Quality I Division of Energy,Mineral and Land Resources
410 Mooresville Regional Office(610 East Center Avenue,Suite 301 I Mooresville,North Carolina 28115
704-663-1699

Letter of Approval with Modifications
Duke Energy Carolinas, LLC
August 10, 2023
Page 2 of 3
1. The approved E&SC plan as well as any approved deviation.
2. The NCGO1 permit and the COC, once it is received.
3. Records of inspections made during the previous 30 days.
Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic inspection to ensure
compliance with the approved plan.
North Carolina's Sedimentation Pollution Control Act 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. 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 notified this office of the proposed
starting date for this project.
Your cooperation is appreciated.
Sincerely,
Shannon Leonard
Assistant Regional Engineer
Land Quality Section
Enclosures: Certificate of Approval
Modifications Required for Approval
NCG01 Fact Sheet
c: Inspection Department
ec: John Bove,PE

Letter of Approval with Modifications
Duke Energy Carolinas, LLC
August 10, 2023
Page 3 of 3
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: Marshall Phase 3 Industrial Landfill (Phases 1-3)
Project ID: CATAW-2024-001
County: Catawba
1. It appears that proposed slopes may exceed 2H:1 V. In addition, it appears some slopes may be greater than
20' in elevation without any slope breaks being provided. However, due to the plan scale (1"=100') and 5'
topo contour intervals, it is difficult to determine. A plan scale of 1"=100' helps provide an overview of a
project. However, this plan scale does not show sufficient topo relief to conduct a sufficient plan review.
Plan scales of 1"=30', 1"=40', 1"=50' are typically sufficient plan scales, depending upon the project. In
addition,the 5'topo intervals make it difficult to conduct a sufficient plan review. This topo contour interval
appears to show missing contours due to the interval spacing. Topo contour intervals no greater than 2' are
typically sufficient. Revise plans as necessary to ensure all proposed slopes are no greater than 2H:1V. If
slopes exceed 20' in elevation(without any slope breaks),provide sufficient slope breaks to limit sheet and
rill erosion and prevent gullying. Refer to Table 6.02a of the NC E&SC Design Manual (page 6.02.2) for
spacing guidance. In addition,provide a larger plan scale and smaller topo contour intervals so the proposed
elevations can be deteiliiined on the plan sheets. Submit two (2) sets of revised plans prior to the start of
land disturbance activities.
2. Plan approval is for Phases 1, 2, and 3 as shown on Sheets 008, 009, and 010. A separate plan must be
submitted and approved for the final landfill closure, as noted on Sheet 011.

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