20190049 Ver 1_Mitigation Evaluation_20220707

From:
Davis. Erin B
To:
Baker. Caroline D
Subject:
FW: [External] Notice of Initial Credit Release/ NCDMS Carpenter Bottom Mitigation Site/ SAW-2018-02062/
Gaston County
Date:
Thursday, July 7, 2022 4:26:45 PM
Attachments:
Carpenter Bottom 100090 CT 02 STR RW Initial Release KB.pdf
Laserfiche Upload: Email & Attachment
DWR#: 20190049 v.1
Doc Type: Mitigation Evaluation
From: Browning, Kimberly D CIV USARMY CESAW (USA) <[e-mail]>
Sent: Thursday, July 7, 2022 4:07 PM
To: Wiesner, Paul <[e-mail]>
Cc: Tugwell, Todd J CIV USARMY CESAW (US) <[e-mail]>; Davis, Erin B
<[e-mail]>; Bowers, Todd <[e-mail]>; Youngman, Holland J
<[e-mail]>; Merritt, Katie <[e-mail]>; Wilson, Travis W.
<[e-mail]>; Munzer, Olivia <[e-mail]>; Reid, Matthew
<[e-mail]>; Eric Neuhaus <[e-mail]>; Shawn Wilkerson
<[e-mail]>; Fennel, Tommy E CIV USARMY CESAW (USA)
<[e-mail]>; Crumbley, Tyler A CIV USARMY CESAW (USA)
<[e-mail]>; Stanfill, Jim <[e-mail]>; Harmon, Beth
<[e-mail]>; Allen, Melonie <[e-mail]>
Subject: [External] Notice of Initial Credit Release/ NCDMS Carpenter Bottom Mitigation Site/ SAW-
2018-02062/ Gaston County
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Good afternoon Paul,
The 15-Day As-Built/MYO review for the Carpenter Bottom Mitigation Site (SAW-2018-02062) ended
June 29, 2022. This review was done in accordance with Section 332.8(o)(9) of the 2008 Mitigation
Rule. All comments received from the NCIRT are incorporated in the email below. Please address IRT
concerns in the MY1 Report. There were no objections to issuing the initial (30% ) credit release of
920.349 warm SMUs and 2.503 Riparian WMUs. Please find attached the current signed ledger. The
IRT is not requesting a site visit at this time, but would like to put it on the list for late in MY2.
USACE Comments, Kim Isenhour:
1. How deep are the floodplain pools where the relic channel meander features were located?
On recent site visits, we've noted several instances of floodplain pools being left as open
water in areas where the mitigation plans calls for planted buffers. The majority of these pools
have been deep enough that they will not dry seasonally and allow for herbaceous or woody
vegetation establishment.
2. In future monitoring years, please capture some of the wetland rehabilitation areas with
mobile veg plots.

3. Thank you for including the soil profile descriptions at each groundwater gauge. It would have
been helpful to include a table with the pre -construction gauge data.
4. Pebble counts were included in the data. Do you plan to keep this as a performance standard
through monitoring?
5. Photo Point 12, outside the easement, appears to be a source of offsite sediment/nutrients.
NCDWR Comments, Erin Davis:
1. DWR would like to reiterate DMS' comments/questions on the high riffles and gauge
bentonite seals. WEI's responses were fine, but please closely observe these areas during MY1 and
address as needed.
2. What are the max. depths of the floodplain pools? (may include response in MY1 report)
3. DWR appreciated that invasives were inventoried and treated pre -construction. And we
were glad to see woody debris was added to the floodplain pools.
DWR is ok with the proposed credit release. No site visit requested.
USEPA Comments, Todd Bowers:
* All 13 vegetation plots met the interim success criteria and are on track to meet the final
* success criteria required for MY7, and no species dominance per plot was greater than 50%.
* Morphological surveys conducted throughout the Site show all streams as stable and
functioning as designed.
* Eleven groundwater wells were established at baseline conditions to monitor wetland
hydrology within both wetland re-establishment and rehabilitation areas. Wetland hydrologic data
will be collected and reported during MY1.
* No adaptive management plan needed at this time.
* No issues of conservation easement encroachment.
* Table 2a: I recommend adding a visual confirmation that the objective of excluding livestock
from the conservation easement is being met. Visual confirmation can include no sign of hoof shear
or cattle excrement within the project boundaries. Trampled streams and vegetation, broken fence,
destroyed banks from hooves and excrement would be positive indications of that objective not
meeting standards.
* Overall, I am very satisfied with the report and the work that Wildlands has completed at the
site. Having not been able to visit this location, I really appreciated the detailed ground -level stream
and veg plot photos to illustrate the amount of work implemented. I recommend the appropriate
credit release (Milestone 2) for warm stream and riparian wetland mitigation units for this
monitoring milestone. I have no other substantial comments at this time.
Please let me know if you have any questions.
Respectfully,
Kim
Kim (Browning) Isenhour
Mitigation Project Manager, Regulatory Division I U.S. Army Corps of Engineers 1 919.946.5107

Mitigation Project Name
DMS ID
River Basin
Cataloging Unit
County
Carpenter Bottom
100090
Catawba
03050102
Gaston
USACE Action ID
DWR Permit
Date Project Instituted
Date Prepared
Stream/Wet. Service Area
2nd Stream/Wet. Service Area
Signature of Official Approving Credit Release
2018-02062
2019-0049
10/9/2018
6/1/2022
Catawba 03050102
CT 03 ESA
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
Warm Stream Credits
Project Credits
Scheduled
Releases °/u
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%
920.349
920.349
0.000
920.349
2022
6/1/2022
3 - Year 1 Monitoring
10.00%
306.786
2023
4 - Year 2 Monitoring
10.00%
306.786
2024
5 - Year 3 Monitoring
10.00%
306.786
2025
6 - Year 4 Monitoring
5.00%
153.392
2026
7 - Year 5 Monitoring
10.00%
306.786
2027
8 - Year 6 Monitoring
5.00%
153.392
2028
9 - Year 7 Monitoring
10.00%
306.786
2029
Stream Bankfull Standard
10.00%
306.786
2026
Totals
920.349
Total Gross Credits
3,067.849
Total Unrealized Credits to Date
0.000
Total Released Credits to Date
920.349
Total Percentage Released
30.00%
Remaining Unreleased Credits
2,147.500
Credit Release Milestone
Riparian Credits
Project Credits
Scheduled
Releases %
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%
2.503
2.503
0.000
2.503
2022
6/1/2022
3 - Year 1 Monitoring
10.00%
0.834
2023
4 - Year 2 Monitoring
10.00%
0.834
2024
5 - Year 3 Monitoring
15.00%
1.252
2025
6 - Year 4 Monitoring
5.00%
0.418
2026
7 - Year 5 Monitoring
15.00%
1.252
2027
8 - Year 6 Monitoring
5.00%
1 0.418
2028
9 - Year 7 Monitoring
10.00%
0.834
2029
Totals
2.503
Total Gross Credits
8.345
Total Unrealized Credits to Date
0.000
Total Released Credits to Date
2.503
Total Percentage Released
29.99%
Remaining Unreleased Credits
5.842
Carpenter Bottom
Catawba 03050102 / Catawba 03 ESA
Page 1 of 2

Mitigation Project Name
DMS ID
River Basin
Cataloging Unit
County
Notes
Contingencies (if any)
Project Quantities
Carpenter Bottom
100090
Catawba
03050102
Gaston
USACE Action ID
DWR Permit
Date Project Instituted
Date Prepared
Stream/Wet. Service Area
2nd Stream/Wet. Service Area
Mitigation Type
Restoration Type
Physical Quantity
Warm Stream
Restoration
3,023.714
Warm Stream
Enhancement II
353.080
Riparian
Restoration
9.661
2018-02062
2019-0049
10/9/2018
6/1/2022
Catawba 03050102
CT 03 ESA
Debits
Warm
Stream
Restoration
Credits
Riparian
Restoration
Credits
Beginning Balance (mitigation credits)
3,067.849
8.345
Released Credits
920.349
2.503
Unrealized Credits
0.000
0.000
Converted Credits
0.000
0.000
Owning Program
Req. Id
TIP #
Project Name
USACE
Permit #
DWR
Permit #
DCM
Permit #
Remaining Balance (Released credits)
920.349
2.503
Remaining Balance (Unreleased credits)
2,147.500
5.842
Total Remaining Balance (Released and Unreleased credits)
3,067.849
8.345
Carpenter Bottom
Page 2 of 2 Catawba 03050102 / Catawba 03 ESA