20210566 Ver 1_More Info Received_20210623

Moore, Andrew W
From: Tyson Kurtz <[e-mail]>
Sent: Wednesday, June 23, 2021 9:00 AM
To: Moore, Andrew W
Cc: Fuemmeler, Amanda J CIV (USA); Leslie, Andrea J
Subject: [External] RE: Request for Additional Information, Echo Lake Maintenance, Buncombe
County (DWR Project #20210566)
Attachments: GE-008 COOL WATER RELEASE DETAIL.pdf
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Andrew,
Please see the responses to your additional information request below.
1. The cool water release detail is attached.
2. The contractor will install a siphon during the construction process that will be used to maintain adequate flow
downstream during the lake re -filling process. The annual mean flow of Cane Creek is 1.2 cfs/sq. mi. The
watershed draining to Echo Lake is 0.48 sq. mi. Half of the average annual flow is approximately 0.3 cfs. A valve
on the end of the siphon will be adjusted to maintain at least 0.3 cfs of flow to the stream immediately below
the dam while re -filling.
I hope this information helps complete the application. Feel free to let me know if you have any questions on the
submitted responses or the project.
Thank you,
Tyson Kurtz
CLearWa Ler
145 7th Avenue West, Suite B
Hendersonville, NC 28792
Office: 828-698-9800 ext. 302
Mobile: [phone]
[e-mail]
WWW.CWENV.COM
From: Moore, Andrew W <[e-mail]>
Sent: Thursday, June 17, 2021 11:06 AM
To: Tyson Kurtz <[e-mail]>
Cc: Fuemmeler, Amanda J CIV (USA) <[e-mail]>; Leslie, Andrea J <[e-mail]>
Subject: Request for Additional Information, Echo Lake Maintenance, Buncombe County (DWR Project #20210566)
Tyson,
On May 26, 2021, the Division of Water Resources (Division) received your application requesting a 401 Water Quality
Certification from the Division for the subject project. The Division has determined that your application is incomplete
and cannot be processed. The application is on -hold until the following information is received:
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1. Please provide a construction detail for the cool water release structure. [15A NCAC 02H .0502(a)(9)]
2. Following project completion, the lake must be re -filled in a manner that ensures adequate flows are provided
downstream to continue to support existing stream uses, including aquatic life. Please describe how this will be
accomplished. [15A NCAC 02H .0506(b)(2) and (3)]
Pursuant to Title 15A NCAC 02H .0502(e), the applicant shall furnish all of the above requested information for the
proper consideration of the application. Please provide your response by July 9, 2021. If all of the requested information
is not received, the Division will be unable to approve the application and it will be denied as incomplete. The denial of
this project will necessitate reapplication to the Division for approval, including a complete application and the
appropriate fee.
Feel free to contact me if you have any questions.
Andrew W. Moore, PG
Environmental Specialist II — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4684 office
email: Andrew.W.Moore(cr�ncdenr.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
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