20230686 Ver 1_Email_20240214

Moore, Andrew W
From: Moore, Andrew W
Sent: Wednesday, February 14, 2024 4:39 PM
To: Eric Romaniszyn; Fuemmeler, Amanda J CIV USARMY CESAW (USA)
Cc: Clement Riddle
Subject: RE: [External] AVL South Parking Lot Permit Question SAW-2023-00994, DWR#
202360686
Eric,
DWR grants an exception to the culvert inlet burial requirement as listed in condition 11 of the Individual Water Quality
Certification associated with the subject project at impact location S1. The inlet invert of the culvert shall be set at the
existing streambed elevation. The other requirements outlined in condition 11 must be followed, and in particular,
ensuring the culvert will convey low flow. DWR retains the authority to enforce the other components found in
condition 11.
Andrew W. Moore, P.G.
Regional Supervisor, Division of Water Resources
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail]
NORTH CAROLINA cl;
Department of Environmental Quality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.
From: Eric Romaniszyn <[e-mail]>
Sent: Wednesday, February 14, 2024 12:50 PM
To: Moore, Andrew W <[e-mail]>; Fuemmeler, Amanda J CIV USARMY CESAW (USA)
<[e-mail]>
Cc: Clement Riddle <[e-mail]>
Subject: RE: [External] AVL South Parking Lot Permit Question SAW-2023-00994, DWR#202360686
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
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Hi Andrew,
There will be no interference. This is from the engineer (with attachment) — "We are introducing a drop structure within
the S-27 to S-28 pipe run downstream of the SSWR conflict so that we can achieve the burial depth on the 96" endwall
and provide an invert out of 2079.00'. We have sufficient pipe clearance between the top of the SSWR and the bottom
of the S-27 to S-28 pipe run at this crossing and at the upstream crossing closer to S-27 and will be able to meet the
burial requirement. I modified the attached plan slightly to show this information."

Eric
Eric Romaniszyn
Senior Scientist
EnviroSciencelnc.com
"Excellence in Any Environment"
C.865-406-1281
From: Moore, Andrew W <[e-mail]>
Sent: Wednesday, February 14, 2024 9:28 AM
To: Eric Romaniszyn <[e-mail]>; Fuemmeler, Amanda J CIV USARMY CESAW (USA)
<[e-mail]>
Cc: Clement Riddle <[e-mail]>
Subject: RE: [External] AVL South Parking Lot Permit Question SAW-2023-00994, DWR#202360686
[EXTERNAL EMAIL - Please use caution]
Eric,
It appears that same gravity sewer line crosses the stream twice within the stream impact S2 (S-27 and S-28 in the figure
you provided) impact area. Is there any potential interference from the sewer line with burial requirements at impact
location S2?
Andrew W. Moore, P.G.
Regional Supervisor, Division of Water Resources
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail]
DE
cl
;
NORTH CAROLINA -
Department of Environmental Quality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.
From: Eric Romaniszyn <[e-mail]>
Sent: Tuesday, February 13, 2024 12:00 PM
To: Fuemmeler, Amanda J CIV USARMY CESAW (USA) <[e-mail]>; Moore, Andrew W
<andrew.w.moore@deg. nc.gov>
Cc: Clement Riddle <[e-mail]>
Subject: [External] AVL South Parking Lot Permit Question SAW-2023-00994, DWR#202360686
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
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Hi Amanda and Andrew,
The airport has found an issue with placement of the 84" culvert under the northern access road. The issue is due to a
gravity sewer line that can't be relocated, which will prevent the culvert inlet from being buried to the depth required in
DEQ's permit condition #11; the outlet can still be buried to the required depth. According to the engineer, "If we can
hold the invert for 5-31 at 2082.00, we can just get over the SSWR pipe without impacting it. Any drop in the 5-31 invert
would put the 84" pipe in direct conflict with the SSWR pipe." See the attached figure for these and additional details.
We are requesting your written approval for this design change and exception to the permit condition. This conflict was
unforeseen at the time of the application since the engineer did not have a survey of the sewer line until now.
Please let us know if you have any concerns about this or if you want to discuss this further.
Thank you.
Eric Romaniszyn
Senior Scientist
EnviroSciencelnc.com
"Excellence in Any Environment"
C.865-406-1281
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WHOM IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL, AND EXEMPT FROM
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