20171579 Ver 1_More Info Received_20180219

Strickland, Bev
From: Price, Zan (George)
Sent: Monday, February 19, 2018 4:21 PM
To: Jake McLean
Cc: Loftis, C. Scott; Mitchell, Robert K
Subject: RE: [External] DWR#17-1579 update
Thank you Jake. We will update our file with this additional information.
Let us know when you start the project.
Regards,
Zan Price, P.E.
Assistant Regional Supervisor — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4662 office
828 231 9634 mobile
zan.Price(a)ncdenr.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Jake McLean [mailto:[e-mail]]
Sent: Monday, February 19, 2018 3:36 PM
To: Price, Zan (George) <[e-mail]>
Cc: Moore, Andrew W <[e-mail]>; Loftis, C. Scott <[e-mail]>
Subject: [External] DWR#17-1579 update
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m.
Good afternoon fellas. Reaching out about the Walnut Creek project after discussing this briefly with Zan.
We were delayed for a while on this project awaiting landowner authorization. It is an AOP/Passage project with Scott
Loftis from WRC, and Jason Meador from Mainspring.
We are reestablishing a natural channel bottom through an existing 3 -barrel concrete box culvert and have a minor
change in approach. Walnut Creek has a DA of >6 square miles. In lieu of pumping around the flow as suggested by the
plans, we propose to direct the contractor to reroute flow into the non-active barrel of the box culvert while working on
the other barrels so the stream flow is maintained outside of the active construction areas during demolition and bed
preparation activities. We will use sandbags or similar diversion structures to keep flow away from areas susceptible to
erosion. During the restoration of the natural channel bed, placement of coarse bed material and boulders is proposed
in the flowing stream to reestablish a profile that can be formed to meet the proposed design conditions. This effort will
use diversion around the active area as required to protect water quality.

Please let me know if there are any questions or concerns about this approach.
Thanks,
Jake