20180180 Ver 1_SAW-2017-00159 MP Final As-Built Monitoring Report_20200728

Strickland, Bev
From: Dailey, Samantha J CIV USARMY CESAW (USA) <[e-mail]>
Sent: Tuesday, July 28, 2020 3:05 PM
To: Tugwell, Todd J CIV USARMY CESAW (US); Kim Browning; Haywood, Casey M CIV
USARMY CESAW (USA); Davis, Erin B; Bowers, Todd; Wilson, Travis W.
Subject: [External] SAW-2017-00159 / Water & Land Solutions, LLC / WLS Neuse 01 /
Hollowell Mitigation Project Final As -Built Monitoring Report
Attachments: WLS Hollowell Virtual Site Visit Minutes 072820.pdf
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Good afternoon,
The below referenced FINAL As -Built Monitoring Report review has been requested by Water & Land
Solutions, LLC. Per Section 332.8(o)(9) of the 2008 Mitigation Rule, this review follows the streamlined review
process, which requires an IRT review period of 15 calendar days from this email notification. Please provide
any comments by 5 PM on the 15-day comment deadline shown below. When providing comments please
indicate if your concerns are great enough that you intend to request an ADDITIONAL site visit prior to the as -
built release. Comments provided after the 15-day comment deadline (shown below) may not be considered.
At the conclusion of this comment period, a copy of all comments will be provided to Water & Land Solutions,
LLC and the NCIRT along with District Engineer's intent to approve or disapprove this Final As -Built and as -built
implementation credit release.
Sponsor: Water & Land Solutions, LLC
Name: WLS Neuse 01 / Hollowell Mitigation Project
USACE ID:
SAW-2017-00159
River Basin:
Neuse
HUC:
03020201
County:
Wayne
The As -Built Implementation Credit Release for the Hollowell Mitigation Project would entail 15-percent of the
total stream restoration and enhancement credits: 1081.6 stream mitigation units and 0.69 riparian wetland
credits.
15-Day Comment Start Date: July 28, 2020 15-Day Comment Deadline: August 12, 2020 45-Day Credit Release
Approval Deadline: August 12, 2020
Link to Hollowell As -Built drawings are on RIBITs, under Monitoring Reports:

https://urldefense.com/v3/_https://ribits.ops.usace.army.mil/ords/f?p=107:278:8467145541213::NO:RP,27
8:P278_BANK_ID:4532_;!!HYmSToo!KlZw02w65d9DxQi_zlJmBnRIOQYyJVK8BidYjUcXsRWOSMLpAYvEbcKsSxf
PFKBtOos$
Please ensure you are logged into RI BITS before trying to view the link.
Please do not hesitate to contact me with any questions.
Best Regards,
Sam
Samantha Dailey
Regulatory Project Manager
U.S. Army Corps of Engineers
Regulatory Division
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
[phone], Ext. 22
[e-mail]

WATER & LAND
SOLUTIONS
Meeting Minutes
WLS Neuse 01 Umbrella Mitigation Bank: Hollowell Mitigation Project
USACE Action ID#: SAW-2017-00159
Subject: NCIRT Hollowell As -Built Baseline Virtual Site Visit
Date Prepared: June 281h, 2020
Meeting Date and Time: June 281h, 2020 10:00 am —11:00 am
Meeting Location: Virtual Site Visit with Teams & ArcGIS Story Map
Recorded By: Cara Conder
Attendees: USACE: Todd Tugwell, Sam Dailey, Kim Browning, and Casey Haywood
NCDEQ DWR: Erin Davis
WLS: Kayne VanStell, Cara Conder, Daniel Ingram, and Emily Dunnigan
NCWRC: Travis Wilson
USEPA: Todd Bowers
These meeting minutes document notes and discussion points from the North Carolina Interagency
Review Team (NCIRT) As -Built Baseline Virtual Site Meeting for the Hollowell Mitigation Project (Neuse
River Basin, CU 03020201, Warm Water Thermal Regime). Water & Land Solutions, LLC (WLS) submitted
an As -Built Baseline Monitoring Report on July 2"d, 2020 and the virtual site visit was held on July 28tn
2020. The meeting began with a general summary of the overall project construction and discussion of
the story map. These meeting minutes proceed in order of discussion.
1. Erin Davis noted that Sheet 12 BMPs on UT2-R2 were modified from the proposed design. Kayne
VanStell explained this was a field modification based on observed ditch flow and water surface elevations
and changed from two BMPs to one BMP at Station 24+00.
2. Erin Davis noted that Sheets 3-5 on UT1-R1 showed that the channel was deeper than proposed. Kayne
VanStell explained there was slight vertical exaggeration on the plans, but there also was a survey
adjustment (-0.17') to the vertical datum prior to construction.
3. Erin Davis asked if the flow gauge on UT1-R1 was in a pool. Daniel Ingram stated that it is immediately
downstream of a log grade control structure. Kim Browning noted that flow gauges should not be in a
waterlandsolutions.com 1 7721 Six Forks Rd, Ste 130, Raleigh, NC 27615 1 919-614-5111

WATER & LAND
SOLUTIONS
pool for single -thread channels. Daniel Ingram noted that the flow gauges are in pools, but the elevation
of the pressure transducer and elevation of downstream riffle is surveyed; therefore, the flow is calculated
over the riffle. WLS will include a diagram and measurement of the flow gauges in all future monitoring
reports. Todd Tugwell requested to recalibrate the top of riffle annually and include notes about the riffle
material.
4. Todd Tugwell stated that the pilot channel on headwater reach UT1-R1 seemed large for a channel
constructed as a headwater reach. Kayne VanStell stated the headwater approach was built according to
the mitigation plan and typical headwater valley section, and the channel dimensions will adjust as
vegetation becomes established.
5. Todd Tugwell asked if there were groundwater gauges in the headwater reaches. WLS responded that
there are not groundwater gauges in the headwater reaches. Todd Tugwell noted that WLS might have to
put groundwater gauges in the headwater channels based on field observation and documenting the
stream and wetland complex interaction.
6. Erin Davis asked for a redline vegetation table in the as -built and also noted that there was not a planting
list provided with quantities and species. This was an oversight and WLS has attached the planting list to
this memo.
7. Kim Browning requested a site visit in the fall and Travis Wilson requested a site visit also. Sam Dailey
said she would coordinate with the IRT.
8. Todd Bowers had concerns about the lack of flow and the riffles dry rotting in UT1. Kayne VanStell
responded that UT1 has intermittent flow regime and expect seasonal flow variability. WLS will monitor
flow duration and does not have concerns about meeting this performance standard (30 consecutive days
of flow).
9. Todd Bowers asked about the bank name, and WLS stated that it is an umbrella bank with one site. The
full name is WLS Neuse 01 Umbrella Mitigation Bank, Hollowell Mitigation Site. This will be corrected in
future monitoring reports.
10. Todd Tugwell asked about the stream credits in Appendix A - Table 1 (mitigation plan vs. as -built
credits). It was reiterated to base the stream credits off the mitigation plan unless there were deviations
to the plans. Table 1 in Appendix A does calculate the credits from the mitigation plan and Table 1 in the
Baseline Report is also based on the mitigation plan.
waterlandsolutions.com 1 7721 Six Forks Rd, Ste 130, Raleigh, NC 27615 1 919-614-5111

Table 1: Hollowell Mitigation Project
Planting List
Species
# Planted
% Planted
Fraxinus pennsylvanica
2400
5.85%
Betula nigra
3400
8.29%
Quercus nigra
2100
5.12
Nyssa biflora
1700
4.14%
Platanus occidentalis
2700
6.58%
Liriodendron tulipifera
2800
6.83%
Quercus phellos
2550
6.22
Quercus alba
1700
4.14%
Quercus bicolor
1700
4.14%
Taxodium distichum
2900
7.07%
Clethra alnifolia
2100
5.12
Persea palustris
2000
4.88%
Magnolia virginiana
21001
5.12
Carpinus carohniana
2900
7.07%
Eubotrys racemosa
2000
4.88
Cyrilla racemilfora
2100
5.12%
Itea virginica
2000
4.88%
Persea borbonia
90
0.22%
Ulmus americana
275
0.67%
Quercus pagoda
800
1.95%
Quercus michauxii
700
1.71%
Total
1 41,015
Not in mitigation plan planting list
Not in mitigation plan planting list
Not in mitigation plan planting list
Not in mitigation plan planting list