20181274 Ver 1_Mitigation Evaluation_20211013

Mitigation Project Name
DMS ID
River Basin
Cataloging Unit
County
Lyon Hills Mitigation Site
100085
Yadkin
03040101
Wilkes
USACE Action ID
DWR Permit
Date Project Instituted
Date Prepared
Stream/Wet. Service Area
Signature of Official Approving Credit Release
2018-01784
2018-1274
6/22/2018
9/7/2021
Yadkin 03040101
1 - For NCDMS, no credits are released during the first milestone (Site Establishment).
2 - For NCDMS projects, the initial credit release milestone occurs when the as -built report (baseline monitoring report) has been approved by the NCIRT and
posted to the NCDMS Portal, provided the following criteria are met:
1) Approval of Final Mitigation Plan;
2) Recordation of the preservation mechanism, as well as a title opinion acceptable to the USACE covering the property;
3) Completion of all physical and biological improvements to the mitigation site pursuant to the mitigation plan;
4) Receipt of necessary DA permit authorization or written DA approval for projects where DA permit issuance is not required.
3 - A 10% reserve of credits is to be held back until the bankful event performance standard has been met.
Credit Release Milestone
Cool Stream Credits
Project Credits
Scheduled
Releases 7o
Estimated
Scheduled
Release #
Proposed
Released #
Not Approved
#Releases
Approved
Credits
Anticipated
Release
Year
Approved
Release
Date
1 - Site Establishment
N/A
N/A
N/A
N/A
N/A
N/A
N/A
2 - Year 0 / As -Built
30.00%
1,591.435
1,591.435
0.000
1,591.435
2021
9/1/2021
3 - Year 1 Monitoring
10.00%
530.478
2022
4 - Year 2 Monitoring
10.00%
530.478
2023
5 - Year 3 Monitoring
10.00%
530.478
2024
6 - Year 4 Monitoring
5.00%
265.240
2025
7 - Year 5 Monitoring
10.00%
530.478
2026
8 - Year 6 Monitoring
5.00%
265.240
2027
9 - Year 7 Monitoring
10.00%
530.478
2028
Stream Bankfull Standard
10.00%
530.478
2025
Totals1
1,591.435
Total Gross Credits
5,304.783
Total Unrealized Credits to Date
0.000
Total Released Credits to Date
1,591.435
Total Percentage Released
30.00%
Remaining Unreleased Credits
3,713.348
Notes
9/1/2021: Stream credits from this project can be utilized to satisfy cool or warm stream requirements.
Contingencies (if any)
Project Quantities
Mitigation Type
Restoration Type
Physical Quantity
Cool Stream
Restoration
2,807.000
Cool Stream
Enhancement I
581.000
Cool Stream
Enhancement II
5,608.000
Page 1 of 2

Mitigation Project Name Lyon Hills Mitigation Site USACE Action ID 2018-01784
DMS ID 100085 DWR Permit 2018-1274
River Basin Yadkin Date Project Instituted 6/22/2018
Cataloging Unit 03040101 Date Prepared 9/7/2021
County Wilkes Stream/Wet. Service Area Yadkin 03040101
Debits
Cool Stream
Restoration
Credits
Beginning Balance (mitigation credits)
5,304.783
Released Credits
1,591.435
Unrealized Credits
0.000
Converted Credits
0.000
Owning Program
Req. Id
TIP #
Project Name
USACE
Permit #
DWR Permit
#
DCM Permit
#
Remaining Balance (Released credits)
1,591.435
Remaining Balance (Unreleased credits)
3,713.348
Total Remaining Balance (Released and Unreleased credits)
5,304.783
Page 2 of 2

From: Davis. Erin B
To: Baker, Caroline D
Subject: FW: [External] Notice of Initial Credit Release/ NCDMS Lyon Hills Mitigation Site/ SAW-2018-01784/ Wilkes
County
Date: Wednesday, November 3, 2021 9:22:56 AM
Attachments: Lyon Hills 100085 YD 101 STR Initial Release KB.pdf
Laserfiche Upload: Email & Attachment
DWR#: 20181274 v.1
Doc Type: Mitigation Evaluation
From: Browning, Kimberly D CIV USARMY CESAW (USA)
[mailto: Kimberly. [e-mail]]
Sent: Wednesday, October 13, 2021 2:35 PM
To: Phillips, Kelly D <[e-mail]>
Cc: Wiesner, Paul <[e-mail]>; Jeff Keaton <jkeaton@wild landseng.com>; Harmon,
Beth <[e-mail]>; Tugwell, Todd J CIV USARMY CESAW (US)
<[e-mail]>; Haywood, Casey M CIV (USA)
<[e-mail]>; Davis, Erin B <[e-mail]>; Youngman, Holland J
<[e-mail]>; Wilson, Travis W. <[e-mail]>; Leslie, Andrea J
<[e-mail]>; Bowers, Todd <[e-mail]>; Jones, M Scott (Scott) CIV
USARMY CESAW (USA) <[e-mail]>; Crumbley, Tyler A CIV USARMY CESAW (USA)
<[e-mail]>
Subject: [External] Notice of Initial Credit Release/ NCDMS Lyon Hills Mitigation Site/ SAW-2018-
01784/ Wilkes County
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to Report Spam.
Hi Kelly,
Per Section 332.8(o)(9) of the 2008 Mitigation Rule, the 15-Day As-Built/MYO review for the Lyon
Hills Mitigation Site (SAW-2018-01784) ended September 30, 2021. All comments received from the
NCIRT are incorporated in the email below. Please address IRT concerns in the MY1 Report and reply
to this email. There were no objections to issuing the initial (30% ) credit release of 1,591.435 cool
SMUs. Please find attached the current signed ledger. The IRT is not requesting a site visit at this
time.
USACE Comments; Casey Haywood:
Section 2.2 : "Vegetative performance for riparian buffers associated with the stream
restoration component of the project (buffer widths 0 — 30ft) will be in accordance with the Stream
Mitigation Guidelines" Should this be 0-50ft? The mitigation plan indicates that all buffers on the
project meet the minimum 50-foot requirement. Please adjust in future reports.
2. Culvert photos: UT1 looking upstream appears to have a significant amount of rock in the
channel. Is Wildlands concerned with how the rock is placed in the channel and in front of the
culvert? Was this meant to be a constructed riffle with embedded material?

USEPA Comments, Todd Bowers:
I have performed a cursory review of the As-Built/MYO Report for the Lyon Hills mitigation site dated
September 2021. At this time I have no site -specific comments for corrective action at the Lyon Hills
site. I have noted the discrepancies noted in the report namely the perched culvert at the Hanks
Branch crossing and the three areas of fencing that required adjustment and Wildland's actions to
repair and monitor these areas appears sufficient. I concur with the proposed plan to monitor the
crossing at Sparks Creek that currently is without fencing due to the desire to avoid frequent repairs.
NCDWR Comments, Erin Davis:
1. DWR appreciates the level of detail provided in the Section 5 narrative and the redline
drawings. Also, thank you for including culvert crossing photos.
2. There were multiple additional rock outlets installed. Were other non -hardening options
considered? Were live stakes or herbaceous plugs planted within outlet areas? What stone size was
used? As discussed at the WEI's Key Mill site, large stone created voids can become wildlife traps.
3. Looking at the photos, DWR was glad to see coir logs were utilized as a temporary sediment
and erosion control measure in steep slope areas.
4. In photo point 9 upstream, is that a monitoring device behind the tree?
With the additional rock outlet installations and new sections of stream realignments, please
confirm that you did not go over the project's 401 approved wetland impact total.
Additionally, in reference to DWR's comment #5, please confirm that the project's 404 wetland
impacts were not exceeded. Please reach out with any questions.
Thanks
Kim
Kim Browning
Mitigation Project Manager, Regulatory Division I U.S. Army Corps of Engineers