20170239 Ver 2_Mebane Bypass Site Review_20210802

Wanucha, Dave
From:Conchilla, Ryan
Sent:Monday, August 2, 2021 3:00 PM
To:Wanucha, Dave
Subject:RE: Mebane Bypass Site Review
Yes. Conversion of Basin 15.1 was mentioned, but timing was not determined.
IMO: With the recent repairs made upgradient of the basin, the sooner they can stabilize the area and convert to
permanent controls, the better.

Attached is the updated photolog. I agree with you on the sediment removal in the culvert. Other than the small
amount of sediment/rock frags noted at the inlet, a natural thalweg has developed inside the culvert.

Ryan Conchilla, PWS
Environmental Specialist II
401 and Buffer Transportation Permitting Branch (DOT Divisions 7+8)
Division of Water Resources, NC Department of Environmental Quality
[e-mail]

_____________________________________________
From: Wanucha, Dave <[e-mail]>
Sent: Monday, August 2, 2021 2:04 PM
To: Conchilla, Ryan <[e-mail]>
Subject: RE: Mebane Bypass Site Review

Good summary and pictures. The more I think about the pipe to the pond and the sediment in the pipe, I’m
not too sure it needs to be cleaned out. I mean it’s not unusual for pipes to accumulate sediments. In fact,
WRC encourages it, to develop a natural channel scenario to facilitate aquatic life and help them to move up
and down. WRC often requires baffles in culverts to slow velocity allowing sediments to drop out. The issue
again is, are they natural upgradient sediments or fill? Looks like mostly natural sediments with minute
quantities of construction fill. Something to kick around a little longer (and maybe poke around in it) before
requiring its removal from pipe as you recommend in Photo 12 and comments related in Photo 16. Let’s
revisit in a week or two. Perhaps edit those comments to say that we are considering it. I like all other repair
recommendations. Did you all talk more about enlarging Basin 15.1?

Division of Water Resources
401 & Buffer Transportation Permitting
1

NC Department of Environmental Quality

336-776-9703 office
336-403-5655 mobile
[e-mail]

NC DEQ Winston Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27106

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: Conchilla, Ryan <[e-mail]>
Sent: Monday, August 2, 2021 1:05 PM
To: Wanucha, Dave <[e-mail]>
Subject: FW: Mebane Bypass Site Review

Dave,
Attached is the photolog summary and photo location map(s) for the above project.
The repairs recommended are noted in the pictures.
Let me know what comments you have.

<< File: Mebane_Site Summary_Photolog_8-2-21.docx >> << File: Mebane Bypass_photo location map_2of2.jpg >> <<
File: Mebane Bypass_photo location map_1of2.jpg >>

Ryan Conchilla, PWS
Environmental Specialist II
401 and Buffer Transportation Permitting Branch (DOT Divisions 7+8)
Division of Water Resources, NC Department of Environmental Quality
[e-mail]

_____________________________________________
From: Wanucha, Dave <[e-mail]>
Sent: Thursday, July 29, 2021 10:13 AM
To: Chapman, Amy <[e-mail]>
Cc: Conchilla, Ryan <[e-mail]>
Subject: Mebane Bypass Site Review

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Hey Amy,
Ryan and I were planning to meet Jerry and DEMLR today at the site to review the sediment loss from last
week. But I’m going to need to stay at the house today and keep tabs on my wife. She developed severe back
pain yesterday afternoon (probably related to all the overactivity with our grandkids over vacation). This
morning, Urgent Care Dr. prescribed all sorts of heavy duty pain meds, etc. I called Ryan this morning and
suggested we postpone until next week. He thinks he can manage it on his own. I agree, he’s doing stellar
work! He has met Jerry and we had a Team Meeting with DEMLR yesterday about the visit. Ryan can fill you
in on that. I’ll be by my phone this afternoon. Ryan said he’ll call me for real time updates during the review
and take pictures. Ryan and I will revisit the site again probably next week or week after to discuss any further
clean-up, possibly enlarging a sediment basin near the inlet to the pond and anything else related to the
project.

Ryan, as far as sediment clean up, it’s ok to allow DOT to leave a little skim layer of sediment on the bottom
channel. It’s impossible to get it all. Any accumulations over about ½” or so and small gravel (57-stone)
should have already been removed. If you see more that needs to be removed, don’t hesitate to insist that
they remove it. There will probably be several staff there with shovels at the ready. Jerry knows the drill, he
has seen the movie. Talk to you later.

Thanks.

Dave

Division of Water Resources
401 & Buffer Transportation Permitting
NC Department of Environmental Quality

336-776-9703 office
336-403-5655 mobile
[e-mail]

NC DEQ Winston Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27106

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.

3