SW6190903_Comment Response 1-2-2020_1/2/2020

Double D Engineering, PLLC
January 2, 2020
NCDEQ
Division of Energy, Minerals and Land Resources
512 N. Salisbury Street
Raleigh, NC 27699-1612
Attn: Jim Farkas
Ref: Short Stop Gas Station
Hoke County
Additional Information Request — SW6190903
Dear Mr. Farkas,
We received your email dated December 19, 2019 with comments concerning the proposed Short
Stop Gas Station Project. In response, we offer the following;
1. We adjusted the calculations to have the bottom of the pond elevation match the contours
— bottom of pond is now 127.0. We adjusted the average depth and other calculations to
match as well as updated the plan sheet. The updated plan sheets are attached.
2. We adjusted supplement to show new average depth, pond volume, design volume,
forebay depth & forebay clean -out depth. The revised calculations are attached. Also
attached is the revised original signed EZ form.
If you have any questions or need any additional information regarding this project, please feel
free to contact this office.
Sincerely,
DO BLE D ENGINEERING, PLLC
l
; 2
Lee Humphrey, roject Manager
150 South Page Street Southern Pines, NC 28387 PH: [phone]
Firm No. P-1275