SW4191202_2020-01-20 Stormwater Permit Resubmittal Transmittal_1/20/2020

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Transmittal Letter
Date: January 21, 2020
To: NC Dept of Environmental Quality
DEMLR Stormwater Program
Attn: Corey Anen
512 N. Salisbury St.
Raleigh, NC 27699-1612
919-807-6369
Project: Matcor Metal Fabrication
Welcome, NC
We Transmit:
(X) herewith
() under separate cover
Project #: 17-042/D
Stormwater Permit No. SW4191202
For Your:
() approval
(X) review and comment
() signatures
Copies
Date
Description
2
Revised Plan Sheet C1.8 Storm Pond Plan & Details
1
TDG Response to Request for Additional Information
1
Signed Permission Letter Comment 1
1
Stage — Storage Data for Forebay and Main Pool Comment 2
Revised Calculations (Wet Detention Pond Design Spreadsheet,
1
Average Depth and SA/DA Calculations, Draw Down Time,
Forebay Calculations)
1
Revised Wet Pond Sheet of the Supplement EZ form
1
Energy Dissipator Calculation for Pond Inlet (Comment 5
1
Revised Drainage Area Sheet of the Supplement EZ form
(Comment 6)
Comments: Corey,
Please find attached the revised plans and calculations requested in your letter dated January 9,
2020. Please contact me if you have any questions or need additional information. Thank you.
Copies: File
Submitted by: L. Allan Hill, P.E.
Chief Civil Engineer
4807 - C Koger Boulevard, Greensboro, NC 27407 1 T - 336-218-8282 F - 336-218-8010 1 www.triad-designgroup.com