20201354 Ver 2_More Info Requested_20220823

Homewood, Sue
From: Homewood, Sue
Sent: Tuesday, August 23, 2022 9:21 AM
To: Hales, Jason C.
Subject: RE: [External] Support pier protection - City of High Point - Richland Creek Aerial
Sewer Pipe Replacement, Guilford County; SAW-2020-01802; DWR # 20201354
Good morning Jason,
I was reviewing this permit modification request and realized that we didn't discuss buffer impacts. The original impacts
were all covered under "existing uses" because they were temporary vegetation impacts to within the existing
maintained corridor, however this culvert extension doesn't fit in that same category because technically some buffer is
completely lost. I can authorize this under "protection of existing structures" but I will have to issue a formal buffer
authorization to do so. The maps you sent show the buffer, can you just provide me with a calculation of square feet of
Z1 and Z2 that will be "lost" adjacent to the extended culvert please.
Thanks.
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
[e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
From: Hales, Jason C. <[e-mail]>
Sent: Tuesday, August 2, 2022 10:32 AM
To: [e-mail]; Homewood, Sue <[e-mail]>
Subject: [External] Support pier protection - City of High Point - Richland Creek Aerial Sewer Pipe Replacement, Guilford
County; SAW-2020-01802; DWR # 20201354
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Hi David and Sue. The contractors doing the aerial pipe replacement work at Richland Creek came across a piling for the
48-inch sewer line that is experiencing erosion from the adjacent stream (intermittent stream SL). We would like to
stabilize this piling for the aerial sewer infrastructure. To ensure there will not be future erosion we're proposing a
culvert extension past the piling vs. just fill and rip rap on the stream bank next to the piling. Some figures and plans
with notes are attached. Hoping we can modify the existing approvals for this project to include this work. This area is
currently designated as temporary stream impact S7. I'm not sure the exact length of culvert needed but just enough to
get it past the pier. The extension shown on the attached plans is —12 feet. We would want to add some riprap and filter
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