HomeMy WebLinkAbout20240223 Ver 1_More Info Requested_20240711 (2)Baker, Caroline D
From: Homewood, Sue
Sent: Thursday, July 11, 2024 9:45 AM
To: Allyson Sinclair
Cc: Jennifer Robertson; Stygar, KRYSTYNKA B CIV USARMY CESAW (USA)
Subject: 2nd Redquest for Additional Information for Wakefield Development - Iredell County
- DWR#20240223
Allyson,
Upon review of the additional information submitted for the Wakefield Dvelopment, DWR requires additional
information in order to complete our review. Please respond to the items listed below with 30 days of receipt of
this request. Please note that the application will be considered "on hold" until receipt of a complete response.
1. The response provided does not completely consider the Division's original question. Please explain why the
lots adjacent to these areas cannot be reduced/removed, thereby allowing the fill slope and the public trail to be
relocated outside of the wetland/streams, or reduce the wetland/stream impacts. The response provided
assumes the lots/development fill is necessary but as noted in the original request the Division's question is
"given the size of the overall project and the number of residential structures, it appears that a slight reduction
in lots/redesign of the overall project to avoid these areas may be practical".
2. The Division appreciates the narrative response on how temporary impacts to wetlands and streams will be
restored. The Division's experience is that contractors who will responsible for restoration will be provided with
plans, not permitting communications. Therefore, please provide a stream restoration detail for the utility line
installation, and dewatering stream impact locations and a wetland restoration detail for utility line installation
wetland impact locations.
3. Please explain the need for the increased culvert length at culvert replacement locations Impacts S10 and S13.
4. For all proposed permanent culverts, the profile design drawings provided do not provide the information
previously requested so that the Division may confirm that water quality standards will be maintained. Please
label the profiles with impact locations. Please show the natural grade above and below the culverts, and the
riprap proposed within the channel. Please also note that the Division prefers that culverts greater than 2.5%
slope be placed "at grade" and not buried. Please reference the Division's standard culvert requirement
language:
Placement of culverts and other structures in streams shall be below the elevation of the streambed by one
foot for all culverts with a diameter greater than 48 inches, and 20% of the culvert diameter for culverts
having a diameter less than or equal to 48 inches, to allow low flow passage of water and aquatic life. If
the culvert outlet is submerged within a pool or scour hole and designed to provide for aquatic passage,
then culvert burial into the streambed is not required. For structures less than 72" in diameter/width, and
topographic constraints indicate culvert slopes of greater than 2.5% culvert burial is not required, provided
that all alternative options for flattening the slope have been investigated and aquatic life
movement/connectivity has been provided when possible (e.g. rock ladders, cross -vanes, sills, baffles
etc.). Notification, including supporting documentation to include a location map of the culvert, culvert
profile drawings, and slope calculations, shall be provided to DWR 30 calendar days prior to the installation
of the culvert.
5. The response provided does not address the Division's specific questions. Please submit a sufficient response to
the original request.
Thanks,
Sue Homewood (she/her/hers)
401 & Buffer Permitting Branch
Division of Water Resources
sue.homewood@deq.nc.gov please note my new email address
336 813 1863 mobile
919-707-3679 office
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Allyson Sinclair <asinclair@atlasenvi.com>
Sent: Thursday, June 13, 2024 4:50 PM
To: Homewood, Sue <sue.homewood@deq.nc.gov>; Stygar, KRYSTYNKA B CIV USARMY CESAW (USA)
<Krystynka.B.Stygar@usace.army.mil>
Cc: Jennifer Robertson <jrobertson@atlasenvi.com>
Subject: [External] Additional Information Package for Wakefield Development DWR#20240223
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Good Afternoon Everyone,
Please find attached the additional information package for the Wakefield Development DWR#20240223. Due to
the size one Drainage report has been added separately and relates to question 5. 1 will be adding a second
drainage report in a separate email due to the maximum allowable size for emails. Please let me know if you have
any questions.
-Thankyou,
Allyson Sinclair,
Environmental Specialist
Atlas Environmental Inc.
P.O. Box 17323
Asheville NC 28806
Phone: 262-210-7828 WONIVIENTAL