NCC201844_ESC Approval Submitted_20200506

Iredell County Planning & Development
Erosion Control Section
349 North Center Street
P.O. Box 788
Statesville, NC 28687
Date: April 10h 2020
LETTER OF APPROVAL WITH MODIFICATIONS
Udo Schomstein
1045 Tomlin Mill Solar, LLC
1447 S. Tryon Street, Ste. 201
Charlotte, NC 28203
RE: Project Name: 1045 Tomlin Mill Solar, LLC
Acres Approved with Modifications: 40.45
Project ID: IREDE-2020-084
Project Location: PIN 4759650060.000
Submitted By: Alfred Benesch & Company
Date Received: April 1 ", 2020
Plan Type: New
Dear Mr. Schomstein:
This office has reviewed the subject erosion and sedimentation control plan. We find the plan to
be acceptable with modifications and herby issue this Letter of Approval with Modifications.
Modifications must be received in this office no later than two weeks prior to the project start
date. Failure to submit modified plans can result in a violation and fine under the Iredell County
Land Development Code. The Modifications required for Approval are listed on the attached
page. The Certificate of Approval issued by IredeIl County must be posted at the job site. This
plan approval shall expire three (3) years following the date of this approval as is required by
Title 15A NCAC 4B.0129 and Appendix H of the Iredell County Land Development Code.
Title 15A NCAC 4B 0118(a) and Appendix H of the Iredell County Land Development Code
requires that a copy of the approved erosion control plan be on file at the job site. Any
amendments and/or revisions to the approved plan must be reviewed and approved prior to
implementation in order for the site to remain in compliance. Failure to submit plans for approval
may result in administrative actions and/or penalties as indicated in the Iredell County Land
Development Code. Also, this letter gives notice as required by G.S. I I3A-61.1(a) and Appendix
H of the IredelI County Land Development Code, of our right of periodic inspection to insure
compliance with the approved plan.
Iredell County'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

Letter of Approval with Modifications
I045 Tomlin Mill Solar, LLC
April 16112020
Page 2 of 4
inadequate to meet the requirements of the Iredell County Land Development Code and the
Sedimentation Pollution Control Act of 1973, (North Carolina General Statute 1 I3A-51 through
66), this office may require revisions to the plan and implementation of the revisions to insure
compliance with the Act and Code.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and
State water quality laws, regulations, and rules. In addition, Iocal city or county ordinances or
rules may also apply to this land -disturbing activity. This approval does not supersede any other
permit or approval. It is the responsibility of the applicant to obtain all other required permits or
approvals.
As of March 1, 2019, all new construction activities are required to complete and submit an
electronic Notice of Intent (NOI) form requesting a Certificate of Coverage (COC) under the
NCG010000 Construction Stormwater General Permit. This form MUST be submitted prior to
the commencement of any land disturbing activity on the above named project. The NOI form
may be accessed at deq.nc.gov/NCG01. Please direct questions about the NOI form to Annette
Lucas at [e-mail] or Paul Clark at [e-mail]. After you submit a
complete and correct NOI Form, a COC will be emailed to you within three business days.
Initially, DEMLR will not charge a fee for coverage under the NCGO1 permit. However, on or
after May 1, 2019, a $100 fee will be charged annually. This fee is to be sent to the DEMLR
Stormwater Central Office staff in Raleigh.
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 is required that this
office to be notified of the proposed starting date for this project. Failure to notify this office of
the starting date may result in a Notice of Violation and civil penalty. Please notify us when you
plan to have a preconstruction conference.
Your cooperation is appreciated.
Sincerely,
r
Jonathan Williams
Erosion Control Inspector I
Enclosures: Modifications
Fact Sheet on the New NCGOI Permit
Permit

Letter of Approval with Modifications
1045 Tomlin Mill Solar, LLC
April 16`h 2020
Page 3 of 4
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: I045 Tomlin Mill Solar, LLC
Project ID: IREDE-2020-084
County: Iredell
Reviewed by: Jonathan Williams
Required changes are designated as `1RC" under legal authority from NC
General Statutes Chapter 113A Article 4 and the Iredell County Land
Development Code.
Suggested changes are designated as "SC" for improvement of the plan.
1. Obtain and provide a copy ofNCDEQ 401 approval for stream crossing activity prior to
land disturbing activity. —RC
2. Obtain and provide a copy US Army Corp of Engineers 404 permit approval for wetlands
disturbance activity prior to land disturbing activity. —RC
3. Obtain and provide a copy of Iredell County Floodplain Development permit for
floodplain disturbance activity prior to land disturbing activity. —RC
4. Provide a copy of easement agreement for land disturbing activity taking place in the 30
foot UGE. —RC
5. Drainage area for Basin I requires a temporary sediment basin (10 acres or greater), not a
skimmer basin. Provide Detail. —RC
6. Adjust Basin 1 Orifice Size to 2.25 inches in order to dewater the required volume of
18,558 ft3 in as close to 3 days' time possible (2.75 days). —RC
7. Adjust Skimmer Basin 2 Orifice Size to 1.75 inches in order to dewater the required
volume of 10,782 ft3 in as close to 3 days' time possible (2.64 days). —RC
8. Adjust Temporary Sediment Basin 2 Orifice Size to 1.75 inches in order to dewater the
required volume of 10,782 ft3 in as close to 3 days' time possible (2.64 days). —RC
9. Adjust Skimmer Basin 3 Skimmer size to 3 inches and Orifice size to 1.75 inches in order
to dewater the required volume of 9,414 ft3 in as close to 3 days' time possible (2.66
days). —RC
10. Adjust Skimmer Basin 4 Orifice Size to 2 inches in order to dewater the required volume
of 16,722 ft3 in as close to 3 days' time possible (3.14 days). —RC
11. Ensure stockpiles are located a minimum of 50 feet from all diversions and basin. —RC
12. Adjust eastern diversion entrance into TSB 4 to enter behind the 3`' baffle, farthest baffle
from the skimmer. —RC
13. Ensure alternate access easement is not used unless included in the limits of disturbance,
properly protected with a construction entrance and meets NCDEQ/USACE requirements
for stream crossing. —RC
14. Include culvert pipe work on Tomlin Mill Road in the limits of disturbance. —RC

Letter of Approval with Modifications
1045 Tomlin Mill Solar, LLC
April 16"' 2020
Page 4 of 4
15. Provide North Carolina Division of Transportation permits for culvert and driveway work
as applicable. —RC
16. In the Construction Sequence, after E, add step to schedule an initial inspection with
Iredell County Erosion Control staff before clearing the remainder of the site. —RC
17. Install check dams in diversions at a minimum of every 50 feet. Provide detail. —RC
18. Use straw wattles for diversion check dams. Provide detail. -SC