20220923 Ver 1_RE_ [External] SAW-2022-01513 Arboretum Pond Maintenance in Caswell Beach, Brunswick County, NC_20221014

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From: Snider, Holley
To: Beecher, Gary H CIV USARMY CESAW (USA); Ben Brink
Cc: Dunn, Maria T.
Subject: RE: [External] SAW-2022-01513 Arboretum Pond Maintenance in Caswell Beach, Brunswick County, NC
Date: Friday, October 14, 2022 2:13:00 PM
Attachments: image002.pnq
Good afternoon Ben,
I am following up on the email from the USACE below regarding their request for additional
information. The DWR has concerns regarding discrepancies contained within the application and a
lack of information necessary to complete the review. The DWR requests the following additional
information be provided to complete the review.
How will the velocity of the discharge at the outlet structure be controlled to prevent scour of the
downstream wetlands? The application show a manual release gate on the weir? How and when
will the water be released and under what circumstances will warrant a release. The aesthetics
pond is now being treated as an SCM, what operation and maintenance agreement will be in place
to maintain the function of the pond??
How will the water that is drained from the pond be managed? How will the upstream waters be
prevented from entering the work area during excavation and construction? What is the duration
for construction? Have you consulted with the NC WRC regarding potential alligators within the
pond?
Where will the spoil material be stockpiled? How will the spoil material be prevented from re-
entering the adjacent water course? Will the spoil material be utilized onsite?
The application is on hold until all of the information detailed above has been received by our office.
Thanks in advance for your attention to this mater. Feel free to call or email me if you have any
questions.
Sincerely,
Holley Snider .•" ,><((((°>-' ><((((°>
Environmental Specialist II
Division of Water Resources
North Carolina Department of Environmental quality
Phone: [phone]
E Q-
127 Cardinal Drive Ext.
Wilmington, NC 28405
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties

From: Beecher, Gary H CIV USARMY CESAW (USA) <[e-mail]>
Sent: Monday, August 15, 2022 3:22 PM
To: Ben Brink <[e-mail]>
Cc: Snider, Holley <[e-mail]>
Subject: [External] SAW-2022-01513 Arboretum Pond Maintenance in Caswell Beach, Brunswick
County, NC
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Ben,
There is a section in the PCN package (Starting on page 35) that talks about State Stormwater Permit
(SW8 880620) this is for a Low Density permit. Through previous e-mails with DWR we've already
established that the ponds are not part of the stormwater treatment for this subdivision.
We're you able to find a base (original) depth for the ponds? Was there any paper work or original
engineering plans for the ponds that you can use as a reference for this project?
These were the only (2) comments that I have for the PCN application review.
Thanks for your help with this project
Respectfully,
Gary
US Army Corps:
al Engineers
Workington. District
Gary Beecher
USACE Wilmington Field Office
Regulatory Project Manager
Office [phone]
Cell [phone]
[e-mail]