NCC231580_ESC Approval Submitted_20230530

ROY COOPER
Governor
ELIZABETH BISER
Secretary
a "
DOUGLAS ANSEL
Interim Director NORTH CAROLINA
Environmental Quality
April 10, 2023
LETTER OF APPROVAL WITH MODIFICATIONS
Toyota Battery Manufacturing, Inc.
Attention: April L. Mason, Site Services GM
151 Engineering Way
Georgetown, KY 40324
RE: Project Name: Greensboro-Randolph Megasite Phase 2C 1
Project ID: RANDO-2023-007
Acres Approved: 47.8
County: Randolph
City: Liberty
Address: Old US-421 Road
River Basin: Cape Fear
Stream Classification: WS-III
Submitted By: HDR Engineering, Inc. •
Date Received by LQS: March 27, 2023
Plan Type: Revised
Dear April L. Mason:
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 NCG010000
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 form 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 NCG010000 permit require that the following documentation be
kept on file at the job site:
DE\9 North Carolina Department of Environmental Quality I Division of Energy,Mineral,and Land Resources
Winston-Salem Regional Office 1450 West Hanes Mill Road,Suite 300 I Winston-Salem,North Carolina 27105
336-776-9800

Letter of Approval with Modifications
Toyota Battery Manufacturing, Inc.
April 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 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 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 notify this
office of the proposed starting date for this project.
Sincerely,
9(4:1 amera Eplin
Regional Engineer
Land Quality Section
Enclosures: Certificate of Approval
Modifications Required for Approval
c: Wes Turley, PE, HDR Engineering, Inc. [[e-mail]]
Jennifer Gissendanner, PE, HDR Engineering, Inc. [[e-mail]]
Vickie Miller, HDR Engineering, Inc. [[e-mail]]
Samuel Burton, TEMA [[e-mail]]
David Lambert,NCDEQ [[e-mail]]
Douglas Ansel, DEMLR [[e-mail]]
Brad Cole, PE, DEMLR [[e-mail]]
Toby Vinson, DEMLR [[e-mail]]
Sue Homewood, DEMLR [[e-mail]]
Lon Snider, DEMLR [[e-mail]]

Letter of Approval with Modifications
Toyota Battery Manufacturing, Inc.
April 10, 2023
Page 3 of 3
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: Greensboro-Randolph Megasite Phase 2C 1
Project ID: RANDO-2023-007
County: Randolph
Modifications pursuant to applicable North Carolina General Statutes and/or Regulations:
1. This erosion and sediment control plan approval is for 47.8 acres, reduced from the 63 acres
originally submitted, and covers Phase 2C 1.
2. The dominant strategy for erosion control involves pumping sediment through a silt bag and
this is likely to occur prior to 3-5 days of standard design settling time. Given the open area
of this overall project, it is recommended that polyacrylamides be added to areas draining to
the Duke easement, diversion waddles and/or contributing basins when practical. This would
maximize the potential for settling of sediment before the pumps/silt bags are utilized.
3. Additional measures may be required. If the approved erosion and sedimentation control
measures prove insufficient, the applicant must take those additional steps necessary to stop
sediment from leaving the limits of disturbance for this erosion and sedimentation control
plan. [15A NCAC 4B .0115]
Ref: G.S. 113A-54.1 through G.S. 113A-57
Sections 15A NCAC 04A.0101 through 15A NCAC 04E.0504
General Permit NCG 010000 NPDES for Construction Activities

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