20170536 Ver 2_Additional Info Received_20190213

Mitchell, Robert K
From: Andrew Bick <[e-mail]>
Sent: Wednesday, February 13, 2019 8:53 AM
To: Mitchell, Robert K
Cc: 'Ann -Patton Hornthal'; 'Billy Clarke'
Subject: RE: [External] RE: Request For Additional Information EFA Properties Shoreline
Stabilization - DWR#2017-0536 V2 Transylvania - Trout
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No problem Kevin. The plan is to re -build the wall just inside the property line and the exact alignment will be
determined during construction as we try to avoid trees and other site features. On the plans, we're showing the length
of the wall at 173 feet. The average wall width will likely be 5 feet, measured from above and factoring in the 1.5:1
slope on the face. The average width of the riprap toe will likely be 4 feet. So, if we round up to 180 feet for the wall
length, 180'x9' comes to 1620 square feet, or 0.037 acre. I had rounded up to 0.04 acre on the revised impact table.
As for fill (or backfill behind the boulder wall), I expect that will be placed upland of the open water so that it would not
count as an impact.
I hope this makes sense. Please let me know if you have more questions.
Thanks for your help.
Andrew
From: Mitchell, Robert K <[e-mail]>
Sent: Wednesday, February 13, 2019 8:19 AM
To: Andrew Bick <[e-mail]>
Cc: 'Ann -Patton Hornthal' <[e-mail]>
Subject: RE: [External] RE: Request For Additional Information EFA Properties Shoreline Stabilization - DWR#2017-0536
V2 Transylvania - Trout
Andrew,
Thanks for getting that to us. Can you provide me with the dimensions of the seawall, rip rap, and any fill material that
is proposed? For example (length of seawall ft. x footprint of impact ft.). I realize some this can vary so an approximate
measure is fine. This is so that when I conduct a follow up inspection I know exactly what was approved and we are all
on the same page.
Kevin Mitchell
Environmental Specialist—Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ— Division of Water Resources
828-296-4650 Office
Email [e-mail]

2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
othing Compares
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From: Andrew Bick <[e-mail]>
Sent: Tuesday, February 12, 2019 10:34 AM
To: Mitchell, Robert K <[e-mail]>
Cc: 'Brown, David W CIV USARMY CESAW (US)' <[e-mail]>; Leslie, Andrea J
<[e-mail]>; Aiken, Stan E <[e-mail]>; 'Ann -Patton Hornthal' <APHornthal@roberts-
ctavane_rnm>
Subject: RE: [External] RE: Request For Additional Information EFA Properties Shoreline Stabilization - DWR#2017-0536
V2 Transylvania - Trout
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Kevin and others — attached is a revised plan set showing the riprap toe and turbidity curtain. I've also attached an
updated impacts table from the PCN. If I need to go back into the online submittal process, please let me know.
Thanks
Andrew
From: Mitchell, Robert K <[e-mail]>
Sent: Tuesday, February 12, 2019 7:56 AM
To: Andrew Bick <[e-mail]>
Cc: 'Brown, David W CIV USARMY CESAW (US)' <[e-mail]>; Leslie, Andrea J
<[e-mail]>; Aiken, Stan E <[e-mail]>
Subject: RE: [External] RE: Request For Additional Information EFA Properties Shoreline Stabilization - DWR#2017-0536
V2 Transylvania - Trout
Andrew,
That makes sense to me especially if you are utilizing the existing wall as a coffer dam. I also copied Stan on this since he
is reviewing the trout buffer variance. Feel free to call if you want to discuss more. I am in the office all day.
Kevin Mitchell
Environmental Specialist—Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ— Division of Water Resources
828-296-4650 Office
Email [e-mail]

2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
'Nothtng Compares
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North Carolina Public Records Law and may be disclosed to third parties.
From: Andrew Bick <[e-mail]>
Sent: Monday, February 11, 2019 5:28 PM
To: Mitchell, Robert K <[e-mail]>
Cc: 'Brown, David W CIV USARMY CESAW (US)' <[e-mail]>; Leslie, Andrea J
<[e-mail]>
Subject: [External] RE: Request For Additional Information EFA Properties Shoreline Stabilization - DWR#2017-0536 V2
Transylvania - Trout
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Thanks Kevin. Can I call you tomorrow morning to get your thoughts on Item 3? 1 wonder if a turbidity curtain would
suffice because installing a coffer dam beyond the existing seawall would result in its own disturbance and I'm not sure
it could be done cleanly in 5' + of water. I'm open to suggestions.
Andrew
From: Mitchell, Robert K <[e-mail]>
Sent: Monday, February 11, 2019 4:09 PM
To: Andrew Bick <[e-mail]>
Cc: Brown, David W CIV USARMY CESAW (US) <[e-mail]>; Leslie, Andrea J
<[e-mail]>
Subject: Request For Additional Information EFA Properties Shoreline Stabilization - DWR#2017-0536 V2 Transylvania -
Trout
Andrew,
Feel free to call or email if you need clarification on any of this.
On January 30 , 2019, the Division of Water Resources (Division) received your application dated January 23, 2019,
requesting a 401 Water Quality Certification from the Division for the subject property. The Division has determined
that your application is incomplete and cannot be processed. The application is on -hold until the following information
is received:
The Wildlife Resources Commission and the Division recommend the installation of rip rap on the waterward
side of boulder walls to provide aquatic habitat and additional energy dissipation. Please include a typical
showing the installation of rip rap below the wall to ensure protection of aquatic habitat or provide an
explanation of why this cannot be practically accomplished. [15A NCAC 02H .0506(b)(2)]

Please provide the dimensions (footprint) of the new seawall including the rip rap apron and any fill material.
Provide an updated impact table that includes the rip rap. [15A NCAC 02H .0502(c)]
The Division has concerns that the proposed measures may not be enough to prevent sedimentation and that
the proposed activity may exceed the turbidity standard for trout waters (10 NTUs). The concerns are the initial
removal of material before the plastic sheeting is installed, the removal of the boulder wall/fill, and equipment
access during the final stage of removal and salvage. Similar seawall projects on Lake Toxaway have utilized
cofferdams and turbidity curtains to isolate the work area and meet the standard. Please provide additional
best management practices to ensure that the turbidity standard for trout waters is not exceeded. [15A NCAC
02B .0211(21)]
Pursuant to Title 15A NCAC 02H .0502 (c), the applicant shall furnish all of the above requested information for the
proper consideration of the application. If all of the requested information is not received within 30 calendar days, of
receipt of this email, the Division will be unable to approve the application and it will be returned. The return of this
project will necessitate reapplication to the Division for approval, including a complete application package and the
appropriate fee.
You may provide your response via email or mail to the address noted below.
Should you have any questions regarding these matters, please contact Kevin Mitchell at [phone] or
[e-mail].
Kevin Mitchell
Environmental Specialist—Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ— Division of Water Resources
828-296-4650 Office
Email [e-mail]
2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
'= iFathing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.