BIG BUFFALO Post-contract Site Visit Notes

Baker, Caroline D
From: Davis, Erin B
Sent: Tuesday, January 10, 2023 8:09 AM
To: Baker, Caroline D
Subject: FW: [External] RE: SAW-2022-02124 / DWR # 20221573 / BIG BUFFALO / Post -
contract Site Visit Notes
Laserfiche Upload: Email
DWR#: 20221573 v.1
Doc Date: 12/29/22
Doc Type: Mitigation — Site Visit
Doc Name: General topic of email title
From: Tugwell, Todd J CIV USARMY CESAW (USA) <[e-mail]>
Sent: Friday, December 30, 2022 11:02 AM
To: Ray Holz <[e-mail]>; Davis, Erin B <[e-mail]>
Cc: Dow, Jeremiah J <[e-mail]>; Worth Creech <[e-mail]>; Grant Lewis -
Axiom Environmental ([e-mail]) <[e-mail]>; Kenan Jernigan - Axiom
Environmental ([e-mail]) <[e-mail]>
Subject: [External] RE: SAW-2022-02124 / DWR # 20221573 / BIG BUFFALO / Post -contract Site Visit Notes
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Ray, these look good other than two things I noted:
1. We discussed the status of UT5, which I have some concern about maintaining a channel through the wetlands
here based on the current condition of the stream. You indicated there was a stream farther up the valley
offsite, but given the flatter area downstream, I still have concerns here.
2. A number of the steams started at seeps near the road crossings (I think this was discussed near the upper end
of UT7), which to me means that these streams had headcuts that have now intercepted some ground
discharge, so lifting them could disconnect them from this hydrology. This just reinforces the importance of
documenting flow and channel formation where these systems are lifted.
Thanks,
Todd Tugwell
Chief, Mitigation Branch
Regulatory Division
Wilmington District, USACE
[phone]
From: Ray Holz <[e-mail]>
Sent: Thursday, December 29, 2022 4:55 PM
To: Davis, Erin B <[e-mail]>; Tugwell, Todd J CIV USARMY CESAW (USA)
<Todd.J.Tugwel I @ usace.a rmy. mi I>
Cc: Dow, Jeremiah J <[e-mail]>; Worth Creech <[e-mail]>; Grant Lewis -

Axiom Environmental ([e-mail])<[e-mail]>; Kenan Jernigan - Axiom
Environmental([e-mail])<[e-mail]>
Subject: [Non-DoD Source] SAW-2022-02124 / DWR # 20221573 / BIG BUFFALO / Post -contract Site Visit Notes
Erin and Todd —
For your review and comment, I have attached a copy of the Big Buffalo site visit notes from our post -contract visit on
December 19. Please provide any additions or edits via email, and I will attach the final email chain to these notes for
inclusion in the Mitigation Plan.
Thank you for your time, and please do not hesitate to contact me directly if you have any questions.
Sincerely,
Raymond H.
Raymond J. Holz I Restoration Systems, LLC
1101 Haynes St. Suite 211 1 Raleigh, NC 27604
tel:[phone] cell:919.604.9314 1 fax:[phone]
email: [e-mail]