NCC231969_MODIFICATION Supporting Documents_20230926

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ROY COOPER --
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ELIZABETH S.BISER \ qn , .'
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DOUGLAS R.ANSEL NORTH CAROLINA
Interim Director Environmental Quality
September 14, 2023
LETTER OF APPROVAL
Corteva Agriscience, Inc.
ATTN: Mr. Douglas Fletcher
P.O. Box 77614
Charlotte, NC 28271
RE: Project Name: SWMU 17 REMEDIAL ACTION, FORMER DUPONT BREVARD SITE
Acres Approved: 4.16
Project ID: TRANS-2023-016
County: Transylvania
City: Cedar Mountain
Address: 1300 Staton Rd.
River Basin: French Broad
Stream Classification: Little River- Class C, Trout
Submitted By: Parsons - Mr. Michael Robinson, PE
Date Received by LQS: March 8, 2023
Date Revision Received by LQS: September 13, 2023
Plan Type: Env. Remediation
Dear Mr. Fletcher,
This office has reviewed the subject erosion and sedimentation control plan. We find the
plan to be acceptable and hereby issue this Letter of Approval. The enclosed Certificate of
Approval must be posted at the job site. This plan 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.
Q' North CarolinaAshevilleRegional Department
2090 of EnviroU.S.Hinmentalgh Q70 I Suality I Divisionwannanoa,ofNorth EnergyCarolina,Mineral28778 and Land Resources
NORTH CAROUNAD_E
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Department of Environmental Quality 828.296.4500

Letter of Approval
Corteva Agriscience, Inc.
ATTN: Mr. Douglas Fletcher
September 14, 2023
Page 2 of 2
Title 15A NCAC 4B.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 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 notify this office of the proposed starting date for this project.
Your cooperation is appreciated.
Sincerely,
Fred Walker, PE
Engineer III
Land Quality Section
Enclosures: Certificate of Approval
NPDES NCG01 Fact Sheet
ec: Mr. Michael Robinson, PE ([e-mail])
Mr. Bryan Shamblin - NCDEQ-LQS ([e-mail])
cc: Regional Office file

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ROY COOPER '5 ''.' 1. ',Al
Governor r y y
ELIZABETH S.BISER �'-'.,;„,,,.H '�
Secretary
DOUGLAS R.ANSEL NORTH CAROLINA
Interim Director Environmental Quality
Resources for Technical Assistance — Erosion and Sedimentation Control
Erosion and Sedimentation Control Plan Requirements and Submittal Documents:
DEQ Erosion and Sedimentation Program Website:
https://deq.nc.gov/about/divisions/energy-mineral-and-land-resources/erosion-and-sediment-control
On this page,you will find the following information:
• Sedimentation Pollution Control Act and Administrative Code(the Law and Rules)
• Information regarding any upcoming workshops or training events
• Manuals and Publications, including the Erosion and Sedimentation Pollution Control
Planning and Design Manual. A direct link to the design manual may be found here:
https://deq.nc.gov/about/divisions/energy-mineral-and-land-resources/erosion-and-
sediment-control/erosion-and-sediment-control-planning-and-design-manual
• Downloads and Links,which provide several helpful design calculations spreadsheets for
various E&SC measures
• Forms needed for plan submittal,including the Financial Responsibility/Ownership form
(required)and the Plan Checklist for Designers,which lists all necessary items for
complete plan submittal
• Express Plan Review Options,and the corresponding forms
To Locate a Plan Designer:
The level of design needed for your plan will depend on the specific project conditions. There is no
statutory requirement that erosion and sedimentation control plans be designed by a professional engineer
or any other licensed/certified person. However,persons with these licenses or certifications are often
qualified to prepare and submit adequate erosion and sedimentation control plans.
The following are provided as references. Directories of licensed or certified individuals may be found on
these websites:
NC Board of Examiners for Engineers& Surveyors: http://www.ncbels.org/
NC Board of Licensed Soil Scientists https://ncblss.wordpress.ncsu.edu/
Certified Professionals in Erosion and Sediment Control: http://www.cpesc.org/
If you have any other questions, or need additional information,please do not hesitate to contact your
NC DEQ regional office (see reverse side of this sheet). We appreciate your cooperation in resolving
the violations noted during our inspection.
Q North Carolina Department of Environmental Quality I Division of Energy.Mineral and Land Resources
Asheville Regional Office 12090 U.S.Highway 70 I Swannanoa,North Carolina 28778
O n▪inelment
a Environmental Olieili /`� 828.29i,.4500

Land Quality Section Regional Office Contact Information
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Asheville Regional Office Fayetteville Regional Office
2090 US Highway 70 225 Green Street(Systel Building), Suite 714
Swannanoa,NC 28778 Fayetteville,NC 28301-5094
[phone] [phone]
Regional Engineer: Stan Aiken,PE Regional Engineer: Tim LaBounty,PE
Mooresville Regional Office Raleigh Regional Office
610 East Center Avenue 3800 Barrett Drive, Raleigh,NC 27609
Mooresville,NC 28115 Mail: 1628 Mail Service Center
[phone] Raleigh,NC 27699
Regional Engineer: Zahid Khan,CPESC,CPSWQ [phone]
Regional Engineer: Bill Denton,PE
Washington Regional Office Wilmington Regional Office
943 Washington Square Mall 127 Cardinal Drive Extension
Washington,NC 27889 Wilmington,NC 28405
[phone] [phone]
Regional Engineer: Samir Dumpor, PE Regional Engineer: Dan Sams,PE
Winston-Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston-Salem,NC 27105
[phone]
Regional Engineer: Tamera Eplin, PE
D EQ) North Carolina Department of Environmental Quality I Division of Energy,Mineral and Land Resources
Asheville Regional Office 12090 U.S.Highway 70 I Swannanoa,North Carolina 28778
oay.rt em of Environment,.a•.�\ /`� 828.296.4500