20200545 Ver 1_More Info Requested_20200909

Strickland, Bev
From: Annino, Amy M
Sent: Wednesday, September 9, 2020 10:03 AM
To: David Weikle; James Gamertsfelder; Slusser, Thomas
Subject: RE: [External] RE: Bostic Landfill site
David,
Rock check dams are not grade control structures. A rock check dam is not appropriate in this situation. The intent of the
grade control structure is to maintain design grade and prevent headcutting. A rock check dam will not perform this
function.
Please see the following resources for grade control structures:
https://www.bae.ncsu.edu/extension/srp/technical-resources/
https://www.bae.ncsu.edu/wp-content/uploads/2017/07/sr guidebook.pdf - Structures are discussed in CH 8, and
Vanes are discussed in 8.2
http://www.hydrology.bee.cornelI.edu/BEE4730Handouts/Rosgen Vanes.pdf
https://www.nres.usda.gov/wps/portal/nres/detail/national/ndcsmc/?cid=nres143 009158 Grade Control is discussed
in the Treatment and Practices table if you scroll halfway down the webpage.
Item Photographs (JPG)
Cross Vane (JPG; 679 KB)
Gabion Drop Structure (JPG; 501 KB)
Log Drop construction (JPG; 563 KB)
Rock Cross Structure (JPG; 596 KB)
Grade Stone Drop construction (JPG; 621 KB)
control
i Stone Drop Structure (JPG; 816 KB)
Step Pool Rock Chute
construction (JPG; 667 KB)
Step Pool Rock Chute after four
years (JPG; 166 KB)
Conceptual Plans (PDF) conceptual Plans (DWG)
Cross Vane (PDF; 119 KB) Cross V�
Log Check (PDF; 124 KB) Log Che
Rock Chute (PDF; 200 KB) Rock Ch
Sheet Pile Weir (PDF; 110 KB) Sheet Pi
Step Pool Rock Step Po(
Structure (PDF; 195 KB) Structur
Step Pool Rock Chute (PDF; Step Poc
156 KB) 164 KB)
e (DWG; 240 KB)
(DWG; 374 KB)
e (DWG; 349 KB)
Weir (DWG; 193 KB)
Rock
(DWG; 195 KB)
Rock Chute (DWG;
(PDF; 116 KB) Stone Drop (DWG; 149 KB)
Will channel roughness also be addressed? DWR believes increasing channel roughness will also be an important
component of maintaining stability in the channel bed.
Amy Annino
Environmental Specialist —Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
1

Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.
From: David Weikle [mailto:[e-mail]]
Sent: Tuesday, September 8, 2020 4:03 PM
To: Annino, Amy M <[e-mail]>; James Gamertsfelder <[e-mail]>;
Slusser, Thomas <[e-mail]>
Subject: FW: [External] RE: Bostic Landfill site
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Sorry about that. Here's the attachment.
David Weikle, P.E.
Senior Project Engineer
From: David Weikle
Sent: Tuesday, September 8, 2020 3:58 PM
To: Annino, Amy M <[e-mail]>; James Gamertsfelder<[e-mail]>;
Slusser, Thomas <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Amy,
I've clouded the additions to the drawings for your review. Let me know what you think?
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Wednesday, September 2, 2020 5:22 PM
To: David Weikle<[e-mail]>; James Gamertsfelder<[e-mail]>;
Slusser, Thomas <[e-mail]>

Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Mr. Weikle,
Thank you for your reply.
Please see the NC Erosion and Sediment Control Planning and Design Manual, Chapter 8 - Appendices:
https://fi les. nc.gov/ncdeg/Energy%20Mi neral%20and%20Land%20Resources/Land%20Resources/Land%20Qual ity/Erosi
on%20and%20Sediment%20Control%20Planning%20and%20Design%20Manual/Chapter%208/Chapter%208 rev%20Ma
y%202013.pdf
In Table 8.05d (on Page 8.05.9) for Maximum Permissible Velocities for Unprotected Soils in Existing Channels, the
maximum permissible velocity for ordinary firm loam is listed as 3.5 fps. The velocity you have calculated for the
proposed ditch is 4.89 fps. In light of this, the Division is concerned that erosion will occur in the ditch as it is currently
designed and transport sediment into downstream surface waters, thereby causing water quality violations
downstream. The Division will not issue a certification for a project that will cause downstream surface water quality
violations.
The Division would like to sees changes made to the proposed S1 impact to prevent this from happening. This could
include placing the S1 stream in a culvert. Alternatively, it could include making changes to the S1 stream channel
bottom (adding imported rock to create roughness and habitat while reducing velocity and erosion) and adding grade
control throughout the channel with —2 permanent structures. You might consider these as possible changes to create
greater stability in the stream channel and prevent erosion into downstream waters.
I spoke with Thomas Slusser today about my concerns and he has arranged a phone call tomorrow at 9am. I look
forward to discussing this with all involved.
Amy Annino
Environmental Specialist — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.annino(cancdenr.gov
M f mom
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.

From: David Weikle [mailto:[e-mail]]
Sent: Tuesday, September 1, 2020 3:49 PM
To: Annino, Amy M <[e-mail]>; James Gamertsfelder<[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Amy,
Please see below.
Also, revised plans are going out in the mail tomorrow for both Mike and Amy.
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Friday, August 28, 2020 3:02 PM
To: David Weikle <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Mr. Weikle,
Thank you for providing the Division with the revised drawings, calculations, and response letter. After speaking with
Mike Smith (DEMLR), I understand that you have provided DEMLR with revisions to the plan and associated calculations.
Please see my comments below:
• Please provide the Division with the most recent revised project plans. [15A NCAC 02H .0502 (b)(3)] SHIELD IS
MORE THAN HAPPY TO PROVIDE DWR WITH THE LATEST APPROVED DRAWINGS.
• Please provide calculations showing that all stormwater entering jurisdictional waters at station 0+60 will be at
non -erosive velocities (2.5 ft/second) for the 10 year storm event. SHIELD HAS ATTACHED CALCUATIONS
SHOWING THE PRE- OF POST -PROJECT FLOWS AT STATION 0+30. A ROUGHNESS COEFFICIENT OF 0.035 WAS
USED (OPEN CHANNELS— EARTH FAIRLY UNIFORM —SIDES CLEAN, COBBLE BOTTOM) FOR BOTH THE BEFORE
AND AFTER CONSTRUCTION. AS CAN BE SEEN, THE VELOCITY ACTUALLY DECREASES FROM 6.32 TO 4.89 DUE TO
THE PROPOSED WIDENING OF THE CHANNEL. IT SHOULD ALSO BE NOTED THAT BASED ON THE NATURAL SLOPE
OF THE CHANNEL AND THE ACTUAL DRAINAGE AREA FEEDING THE CHANNEL, A VELOCITY OF 2.5 FPS IS
IMPOSSIBLE TO PROVIDE.
Impact S1: Provide justification for the proposed stream channel dimensions based on reference reach
information or stable dimensions upstream and downstream of the impact area. Size the channel appropriately
to prevent future channel aggradation or degradation. [15A NCAC 02H .0506 (b)] THE CHANNEL WAS SIZED TO
GRADUALLY NARROW/TRANSITION FROM OUR UPPER DITCH WIDTH OF 10' TO THE NATURAL WIDTH OF THE
CHANNELATTHE PROPERTY LINE.
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 by September 28, 2020, the
Division will be unable to approve the application and it will be returned.
Amy Annino
Environmental Specialist —Asheville Regional Office

Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
D EL
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.
From: David Weikle [mailto:[e-mail]]
Sent: Thursday, July 2, 2020 12:14 PM
To: Annino, Amy M <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
nc. ov
Amy/Mike,
Attached you will find the revised drawings, ditch calculations, and a comment response letter. Please let me know if
either of you need anything else.
Have a nice Holiday.
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Thursday, July 2, 2020 8:26 AM
To: David Weikle <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Hi David,
You can send me electronic revisions via email if the file isn't too large. Paper copies to the Swannanoa address are also
acceptable. Thank you,
Amy Annino
Environmental Specialist —Asheville Regional Office

Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
D EL
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.
From: David Weikle [mailto:[e-mail]]
Sent: Wednesday, July 1, 2020 12:26 PM
To: Annino, Amy M <[e-mail]>
Subject: [External] RE: Bostic Landfill site
xternal email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
nc. ov
Amy,
I'll work on addressing the comments. In the meantime, where should I submit the new drawings? Do they need to be
paper copies sent to the address in Swannanoa?
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Wednesday, July 1, 2020 7:21 AM
To: David Weikle <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: Bostic Landfill site
On April 15, 2020, the Division of Water Resources (Division) received your application dated April 8, 2020 requesting a
401 Water Quality Certification from the Division for the subject project. On April 15, 2020, the application was placed
on hold while the Division determined whether an application fee was required. On May 8, 2020, the Division
determined that an application fee was not necessary. After initial review of the application, the Division has determined
that your application is incomplete and cannot be processed. The application is on hold until the following items are
addressed:

1. The plan proposes to excavate landfill material from within and below an existing intermittent stream. After
excavation is complete, a 10 foot wide ditch with a 5.2% slope will be graded to provide a channel for the
intermittent stream below an existing spring head (to remain undisturbed). The new ditch will be stabilized with
seed, straw, and coir matting. No grade control within the proposed ditch has been proposed.
a. The Division is concerned about stream channel stability within the proposed 10 foot wide, 5.2% slope
ditch. Please provide calculations showing that streamflow and stormwater flow will not degrade the
restored channel or downstream waters. [15A NCAC 02H .0506(b)(2) and (b)(3)]
2. Wattles are specified as 'Excelsior Wattle' in the drawing within the Sediment Wattle detail on sheet 9. All
wattles specified for placement in jurisdictional waters should be either a coir log or coir wattle and contain no
plastic netting or mesh. Please provide a specification sheet on selected product and update the plan
accordingly.
a. What is the timeline for maintaining and removing wattles from the stream after the project has
concluded? The wattles should not be left permanently.
b. Any sediment removed from behind wattles in the stream should be performed by hand with shovel and
bucket and spoils should be stabilized at least 30 feet from surface waters. Please provide a location on
the plan for spoils to be deposited and stabilized.
3. Is application of PAM proposed for all wattles? Use of PAM is not allowable on wattles in jurisdictional waters.
Please indicate this in the plan set.
4. The plan shows a silt fence outlet to be installed at the LOD within the channel of the intermittent stream.
a. This Office believes that the silt fence outlet can be revised to avoid and minimize the impacts to the
stream. Please provide an alternative to installing a silt fence outlet within the channel of the
intermittent stream. [15A NCAC 02H .0506(f) and (g)]
5. At what station do you expect to begin the pump around sequence? Please provide more detail on where / how
you intend to pump spring flow and stream flow (as well as any groundwater seepage) around the work area to
protect downstream waters.
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 by August 1, 2020, the
Division will be unable to approve the application and it will be returned.
Amy Annino
Environmental Specialist —Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
D;,, _. E Q
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.