HomeMy WebLinkAbout20201095 Ver 1_Double Rock_Buffer_MY1_Report_Draft_20231222
Double Rock Mitigation Bank Parcel
DWR ID # 2020‐1095v1
Wildlands Holdings VI, LLC; Wildlands Catawba Umbrella Mitigation Banking Instrument
Alexander County, NC
Catawba 01 Watershed
Catawba River Basin
HUC 03050101
MONITORING YEAR 1 REPORT – BUFFER MITIGATION
December 2023
PREPARED BY:
Wildlands Engineering, Inc.
1430 South Mint Street, Suite 104
Charlotte, NC 28203
Phone: (704) 332‐7754
Fax: (704) 332‐3306
Double Rock Mitigation Bank Parcel Page i
Monitoring Year 1 Annual Report
MONITORING YEAR 1 REPORT – BUFFER MITIGATION
Double Rock Mitigation Bank Parcel
Wildlands Holdings VI, LLC; Wildlands Catawba Umbrella Mitigation Banking Instrument
TABLE OF CONTENTS
1.0 Introduction ..................................................................................................................................... 1
1.1 Project Description....................................................................................................................... 1
1.2 Bank Sponsor................................................................................................................................ 1
1.3 Project History .............................................................................................................................. 2
1.4 Project Location ........................................................................................................................... 2
1.5 Project Design .............................................................................................................................. 2
2.0 Vegetation Monitoring .................................................................................................................... 4
2.1 Success Criteria ............................................................................................................................ 4
2.2 Description of Species and Monitoring Protocol ........................................................................ 4
2.3 Results of Vegetation Monitoring ............................................................................................... 6
2.4 Parcel Adaptive Management ..................................................................................................... 6
2.5 Easement Boundary Inspection ................................................................................................... 7
2.6 Conclusions................................................................................................................................... 7
3.0 References ....................................................................................................................................... 8
LIST OF TABLES
Table 1 Project Activity and Reporting History
Table 2 Tree Species Selected for Buffer Restoration
Table 3 Character/Existing Tree Species
Table 4 Monitoring Plot Summary – Planting (As‐Built)
Table 5 Monitoring Plot Summary – Year 1
APPENDICES
Appendix A: Figures
Figure 1 Project Location Map
Figure 2 Service Area Map
Figure 3 Project Components/Assets Map
Figure 4 Monitoring Components Map
Appendix B: Bank Credit Ledger
Appendix C: Vegetation Assessment Data
Table 6 Vegetation Plot Success Summary
Table 7a‐b Planted and Total Stem Counts
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Appendix E: Overview Photographs
Double Rock Mitigation Bank Parcel Page 1
Monitoring Year 1 Annual Report
1.0 Introduction
1.1 Project Description
The Double Rock Mitigation Bank Parcel (Parcel) was created under the terms and conditions of the
Wildlands Catawba Umbrella Mitigation Banking Instrument (UMBI), made and entered into by
Wildlands Holdings VI, LLC acting as Bank Sponsor (Sponsor) and the North Carolina Department of
Environmental Quality (NCDEQ) Division of Water Resources (NCDWR). The Bank Parcel Development
Package (BPDP) was approved in September 2022. The Parcel has been planned, designed, and
constructed according to the UMBI and the Consolidated Buffer Mitigation Rule 15A NCAC 02B .0295
which became effective November 1, 2015. The project has been designed in concurrence with the
Wildlands Catawba Umbrella Mitigation Bank, Double Rock Mitigation Site (DWR ID#2020‐1095v1)
which includes a stream restoration component. The parcel location and the service area are depicted in
Figures 1 and 2, respectively.
The Parcel creates a protected riparian area from top of bank ranging from 50 feet to 200 feet along
four project tributaries. Both the buffer and stream mitigation projects include Elk Shoals Creek and two
unnamed tributaries (Randall Tributary and Stikeleather Tributary). The stream mitigation bank also
includes three additional unnamed tributaries (Matheson Tributary, Matheson Tributary A, and
Matheson Tributary B), which are not proposed for riparian buffer credit. Elk Shoals Creek eventually
drains into the Catawba River, a 303(d) listed stream, approximately 6‐miles downstream. The primary
purpose of the project is to provide stream and riparian buffer mitigation credits to compensate for
unavoidable impacts in the Catawba River Basin Hydrologic Unit Code (HUC) 03050101.
Of the 19.33 acres protected under the conservation easement, 6.17 acres were restored and 2.06 acres
were preserved for riparian buffer credit. The area of preservation credit within the buffer mitigation
site equals 25% of the total area of buffer mitigation. An additional 5.93 acres are used for crossings, for
the stream preservation areas on Matheson Trib, Matheson Trib A, and Matheson Trib B, and for the
buffer preservation areas which are greater than the 25% of the total credited area; these areas will not
receive credits. There is one credit ledger for the project: Riparian Buffer Credits. None of the riparian
buffer credits on the Parcel are convertible or transferable to nutrient offset credits.
1.2 Bank Sponsor
The Double Rock Mitigation Bank Parcel is part of the bank. The Wildlands Catawba UMBI for the bank
was approved on September 19, 2022.
Wildlands Holdings VI, LLC
1430 South Mint Street, Suite 104
Charlotte, NC 28203
Phone: 704‐332‐7754
Attn: Shawn Wilkerson
Email: swilkerson@wildlandseng.com
Double Rock Mitigation Bank Parcel Page 2
Monitoring Year 1 Annual Report
1.3 Project History
A timeline of the project history is provided in Table 1.
Table 1. Project Activity and Reporting History
Activity or Report Data Collection
Complete
Completion or Scheduled
Delivery
Stream Mitigation Plan Approved ‐ July 2022
Wildlands Catawba UMBI ‐ September 2022
BPDP Approval Date ‐ September 2022
Conservation Easement ‐ October 2022
Stream Mitigation Construction (Grading) ‐ April 2023
Bare Root Planting ‐ April 2023
Stream Mitigation As‐Built Survey ‐ June 2023
Buffer Mitigation As‐Built Survey ‐ August 2023
Easement Marking & Fencing (Buffer and Stream
Mitigation) ‐ June 2023
Stream Mitigation As‐Built and Baseline Monitoring
Document (Year 0) May 2023 July 2023
Buffer Mitigation As‐Built and Baseline Monitoring
Document (Year 0) April 2023 August 2023
Buffer Mitigation Year 1 Monitoring November 2023 December 2023
Stream Mitigation Year 1 Monitoring November 2023 March 2024
1.4 Project Location
The Parcel is comprised of two parcels: one that is maintained as an active cattle farm, and one that is
currently wooded but has been managed for both timber and agriculture in the past. The Parcel is
located in Alexander County in the township of Hiddenite, approximately six miles southeast of
Taylorsville, NC (Figure 1). DirecƟons are included on Figure 1. Although the Parcel was restored for
stream and riparian buffer miƟgaƟon credits in the Catawba River Basin HUC 03050101 (Figure 2), this
report is to document the implementaƟon of the buffer miƟgaƟon efforts. The Parcel is located within
the Catawba River Basin HUC 03050101130010 (Elk Shoals Creek), NCDWR Subbasin 03‐08‐32.
AddiƟonally, the Parcel is located in the Elk Shoals Creek Targeted Local Watershed (TLW) which
amended is defined in the Catawba River Basin RestoraƟon Plan (NCDEQ, 2018) as Water Supply IV
Waters, which are used as a source of drinking water, culinary, or food processing.
1.5 Project Design
The Double Rock Bank Parcel includes 6.17 credited acres or 268,654.000 ft² of riparian buffer
restoration credits, 2.06 credited acres or 89,551.000 ft² of riparian buffer preservation credits. An
additional 5.93 acres are used for crossings, for the stream preservation areas on Matheson Trib,
Matheson Trib A, and Matheson Trib B, and for the buffer preservation areas which are greater than the
25% of the total credited area; these areas will not receive credits. Mitigation credits for the Parcel are
based upon the as‐built survey. A map detailing the credit generation is provided in Figure 3 in Appendix
A.
Double Rock Mitigation Bank Parcel Page 3
Monitoring Year 1 Annual Report
The revegetation plan for the Parcel included the planting of bare root trees and controlling invasive
species growth. The tree species selected for the Parcel were native hardwood species typical for
Piedmont Bottomland Forest communities as defined by Schafale (2012). A total of 6,380 trees were
planted on 11.1 acres of the conservation easement at a density of 575 trees per acre, which is sufficient
to meet the performance standards of 260 trees per acre at the end of five years (Rule 15A NCAC 02B
.0295). All areas for mitigation are protected in perpetuity under the conservation easement. Tree
species selected for planting on the Parcel, as well as size specifications, planting density, and planting
composition are detailed in Table 2.
Table 2. Tree Species Selected for Buffer Restoration
Scientific Name Common Name Size (ft)
Planting
Density
(Stems/Acre)1
Planting
Composition
(%)
Buffer Bare Root Planting
Betula nigra River Birch 2‐3 83.5 15%
Carpinus caroliniana Ironwood 2‐3 28.0 5%
Celtis laevigata Sugarberry 2‐3 28.0 5%
Cornus florida Flowering Dogwood 2‐3 28.0 5%
Diospyros virginiana Persimmon 2‐3 56.0 10%
Lindera benzoin Spicebush 2‐3 28.0 5%
Platanus occidentalis American Sycamore 2‐3 83.5 15%
Quercus michauxii Swamp Chestnut Oak 2‐3 28.0 5%
Quercus phellos Willow Oak 2‐3 56.0 10%
Quercus rubra Northern Red Oak 2‐3 28.0 5%
Ulmus rubra Slippery Elm 2‐3 56.0 10%
Viburnum prunifolium Blackhaw Viburnum 2‐3 28.0 5%
Xanthorhiza simplissima Yellow Root 2‐3 28.0 5%
Totals 559.0 100%
Wetland Bare Root Planting
Alnus serrulata Tag Alder 2‐3 1.6 10%
Betula nigra River Birch 2‐3 2.4 15%
Cephalanthus occidentalis Buttonbush 2‐3 1.6 10%
Platanus occidentalis American Sycamore 2‐3 2.4 15%
Quercus michauxii Swamp Chestnut Oak 2‐3 2.4 15%
Rhododendron viscosum Swamp Azalea 2‐3 1.6 10%
Salix nigra Black Willow 2‐3 1.6 10%
Ulmus americana American Elm 2‐3 2.4 15%
Totals 16.0 100%
1 The totals also include the areas planted for the stream mitigation portion of the project.
Natural recruitment of desirable Character Tree species shall be counted towards the survival and
success rate of the Parcel. Character Trees are defined as planted or volunteer species identified from a
survey of local vegetation on less degraded sections of the specified stream and from reference
literature that details native species. A list of Character Tree species (other than the planted species) is
included in Table 3.
Double Rock Mitigation Bank Parcel Page 4
Monitoring Year 1 Annual Report
Table 3. Character/Existing Tree Species
Scientific Name Common Name Wetland Indicator Status
Fagus grandifolia American Beech FACU
Gleditsia triacanthos Honey Locust FAC
Juglans nigra Black Walnut FACU
Liquidambar styraciflua Sweetgum FAC
Liriodendron tulipifera Tulip Poplar FACU
Morus rubra Red Mulberry FACU
Oxydendron arboreum Sourwood UPL
Quercus alba White Oak FACU
Sambuscus nigra Elderberry FAC
2.0 Vegetation Monitoring
2.1 Success Criteria
The performance criteria for the Parcel follows approved performance criteria presented in the
guidance documents outlined in the Consolidated Buffer Rule (15A NCAC 02B .0295). Annual monitoring
and semi‐annual site visits will be conducted to assess the condition of the finished project.
The buffer mitigation project has been assigned specific performance criteria components for
vegetation. Performance criteria will be evaluated throughout the five‐year post‐construction
monitoring. The monitoring components are depicted in Figure 4 (Appendix A). The measures of
vegetative success for the Parcel will be the survival of at least four native hardwood tree species, where
no one species is greater than 50% of the established stems, and an established density of at least 260
planted trees and shrubs per acre at the end of the fifth year of monitoring. Appropriate and desirable
native volunteer species may be included to meet the performance standards with DWR approval.
2.2 Description of Species and Monitoring Protocol
Vegetation
A total of 6 (5 permanent and 1 mobile), 100‐m2 vegetation monitoring plots were installed within the
buffer restoration area to measure the survival of the planted trees (Figure 4). The permanent plots
(VPs) were established as either 10‐meter by 10‐meter square plots or 5‐meter by 20‐meter rectangular
plots, while mobile vegetation plots were established as 100‐m2 circular plots. The mobile vegetation
plots (MPs) will be relocated to a different buffer restoration area in monitoring years 2‐5. Five out of
the 6 vegetation plots (VPs 4‐7 and MP2) are also being used for vegetation monitoring in the stream
mitigation portion of the project. The number of plots required was determined and vegetation
assessments were conducted following the CVS Levels 1 & 2 Protocol for Recording Vegetation, Version
4.2 (Lee et al, 2008; Peet, et al., 1998).
Planting was completed in April 2023 and annual monitoring activities began in October of 2023, at least
six months after planting was completed, and will continue in the fall for the remainder of the
monitoring period. Each year a reference photo will be taken from the origin pole, which is located near
the southwestern corner of each vegetation plot, and all planted stems will be marked with flagging
tape and their heights recorded. Species composition, height, density, and survival rates will be
evaluated on an annual basis by plot for the entire parcel. The total number of volunteer woody stems
will also be documented and reported. All planted stems within the plots were marked with flagging
Double Rock Mitigation Bank Parcel Page 5
Monitoring Year 1 Annual Report
tape and recorded. The total number of tree species planted at as‐built within the monitoring plots as
well as planting density and plant composition are detailed in Table 4. Detailed results of the Monitoring
Year 1 stem counts are summarized in Appendix C.
Table 4. Monitoring Plot Summary – Planting (As‐Built)
Scientific Name Total Planted
Stems Flagged
Calculated Planting
Density (Stems/Acre)
Planting
Composition (%)
Betula nigra 19 128 21%
Carpinus caroliniana 3 20 3%
Celtis laevigata 3 20 3%
Cornus florida 6 40 7%
Diospyros virginiana 7 47 8%
Lindera benzoin 3 20 3%
Platanus occidentalis 18 121 20%
Quercus michauxii 2 13 2%
Quercus phellos 10 67 11%
Quercus rubra 5 34 5%
Ulmus rubra 8 54 9%
Viburnum prunifolium 4 27 4%
Xanthorhiza simplicissima 4 27 4%
Totals 92 621 100%
Photo Reference Stations
Photographs will be taken of the project area using a drone once a year to visually document the Parcel
conditions for five years following construction. The approximate locations of the aerial photos are
shown in Figure 4. The photos documenting the current conditions of the Parcel are provided in
Appendix E.
Visual Assessments
A visual assessment of the conservation easement will be performed each year and reported to NCDWR
in the annual monitoring reports to confirm:
• Existing fencing is in good condition throughout the site;
• No cattle access within the conservation easement area;
• No encroachment has occurred;
• Diffuse flow is being maintained in the conservation easement area;
• There has not been any cutting, clearing, filling, grading, or similar activities that would
negatively affect the functioning of the buffer; and
• Easement boundaries are clearly and distinctly identified by marker, post, tree‐blazing, or other
means as allowed.
Problem areas consisting of vegetative health and density issues will be noted. Areas of concern will be
mapped, photographed, and accompanied by a written description in the annual report. Problem areas
will be re‐evaluated during each subsequent visual assessment. The extent of invasive species coverage
will also be monitored and treated as necessary throughout the required, five‐year monitoring period.
Double Rock Mitigation Bank Parcel Page 6
Monitoring Year 1 Annual Report
2.3 Results of Vegetation Monitoring
The six vegetation plots were sampled in October 2023. A reference photo was taken from the
southwest corner of each plot, which can be found in Appendix D along with the MY1 stem counts and
assessment data. The number of planted stems identified within the monitoring plots as well as density
and composition are summarized in Table 5. Vegetative assessment results with planted stem density
and stem count by plot and species are summarized in Appendix C.
Table 5. Monitoring Plot Summary of Planted Stems – Year 1
Scientific Name Total Planted Stems
Flagged
Calculated Planting
Density (Stems/Acre)
Planting
Composition (%)
Betula nigra 17 115 22%
Carpinus caroliniana 2 13 3%
Celtis laevigata 3 20 4%
Cornus florida 2 13 3%
Diospyros virginiana 7 47 9%
Lindera benzoin 1 7 1%
Platanus occidentalis 18 121 24%
Quercus michauxii 2 13 3%
Quercus phellos 9 61 12%
Quercus rubra 2 13 3%
Ulmus rubra 9 61 12%
Viburnum prunifolium 4 27 5%
Xanthorhiza simplicissima 0 0 0%
Totals 76 511 100%
The 2023 vegetation monitoring resulted in an average stem density of 870 stems per acre with
individual plot densities ranging from 405 to 2,671 stems per acre, which exceeds the final requirement
of 260 stems per acre. Diversity remained high in all but VP4 through the first growing season, with 3
planted species for VP4 and a range of 7 to 11 species across all other plots. The average stem height is
76cm (2.5 ft) for the permanent plots and 79 cm (2.6 ft) for MP2 in MY1. Additionally, herbaceous
vegetation and desirable volunteers have become well established throughout the Parcel. Parcel is on
track to meet its final success criteria.
2.4 Parcel Adaptive Management
Adaptive measures will be developed, or appropriate remedial actions will be implemented in the event
the Parcel, or a specific component of the Parcel fails to achieve the success criteria outlined in the
BPDP. Parcel maintenance will be performed to correct any identified problems on the Parcel that have
a high likelihood of affecting project success. Such items include, but are not limited to, fire, flooding,
drought, or insects that cause excess tree mortality. Any actions implemented will be designed with the
consent of NCDWR to achieve the success criteria and will include a work schedule and updated
monitoring criteria. A rigorous herbicide schedule may be implemented in the first few years of tree
establishment in the restoration areas to prevent establishment of invasive and/or undesirable species
that may out‐compete native vegetation. The only herbicides used on the Parcel will be aquatic
approved herbicides that will be applied in accordance with North Carolina Department of Agriculture
rules and regulations. Any actions implemented will be designed with the consent of NCDWR to achieve
the success criteria and will include a work schedule and updated monitoring criteria.
Double Rock Mitigation Bank Parcel Page 7
Monitoring Year 1 Annual Report
During MY1, isolated areas of Chinese privet (Ligustrum sinense), Japanese Honeysuckle (Lonicera
japonica), and Multiflora Rose (Rosa multiflora) were observed in the existing woody buffers along Elk
Shoals Creek. Wildlands will treat existing invasive areas in 2024 and will continue to monitor for the
reemergence of any invasive populations which threaten the success of the project.
2.5 Easement Boundary Inspection
During the as‐built site walk with NCDWR on July 12, 2023, NCDWR expressed concern over the distance
between easement signs along the northern wooded portion of the Elk Shoals Creek Reach 1 easement
line. Therefore, Wildlands added additional signage along the reach in September 2023. Additionally,
Wildlands inspected the remainder of the boundary in December 2023 and no easement encroachment
was observed. A full easement boundary inspection will be conducted every monitoring year to ensure
that the easement remains intact and free from violations.
2.6 Conclusions
Vegetation is thriving across the Parcel and is exceeding performance standards. Visual inspection
indicates thriving herbaceous and woody vegetation. Monitoring Year 1 data shows an average stem
density of 870 stems per acre when all volunteers are included. Diversity remained high in all, but one
vegetation plot (VP4) vigor remains high for nearly all stems in all plots. Overall, the monitoring data
shows positive trends in vegetation establishment, and this trajectory is expected to continue.
Double Rock Mitigation Bank Parcel Page 8
Monitoring Year 1 Annual Report
3.0 References
15A NCAC 02B .0295. Retrieved from: http://reports.oah.state.nc.us/ncac/title%2015a%20‐
%20environmental%20quality/chapter%2002%20‐
%20environmental%20management/subchapter%20b/15a%20ncac%2002b%20.0295.pdf.
Lee, M.T., Peet, R.K., Steven D., & Wentworth, T.R. 2008. CVS‐EEP Protocol for Recording Vegetation
Version 4.2. Retrieved from: http://cvs.bio.unc.edu/protocol/cvs‐eep‐protocol‐v4.2‐lev1‐5.pdf.
NC Department of Environment and Natural Resources, Ecosystem Enhancement Program. 2004.
Guidelines for Riparian Buffer Restoration. Retrieved from:
https://www.monroenc.org/Portals/0/Departments/Water%20Resources/Documents/Bufferrestor
ation‐guide‐NCDENR.pdf.
NC Department of Environmental Quality (NCDEQ), Division of Water Resources (DWR). 2011. Surface
Water Classifications. Retrieved from: https://www.deq.nc.gov/about/divisions/water‐
resources/water‐planning/classification‐standards/classifications.
NCDEQ, DWR. 2018. Upper Catawba River Basin Plan 2009 (Amended July 2018).
https://files.nc.gov/ncdeq/Mitigation%20Services/Watershed_Planning/Catawba_River_Basin/20
18_Upper_Catawba_RBRP.pdf
Peet, R.K., T.R. Wentworth and P.S. White. 1998. A flexible, multipurpose method for recording
vegetation composition and structure. Castanea 63:262‐274.
Schafale M. 2012. Guide to the Natural Communities of North Carolina, Fourth Approximation. North
Carolina Department of Environmental and Natural Resources, Natural Heritage Program.
Retrieved from: https://www.ncnhp.org/documents/files/guide‐classification‐natural‐
communitiesnorth‐carolina‐4th‐approximation/open.
Wildlands Engineering, Inc. (Wildlands). 2023. Double Rock Mitigation Site As‐Built & Baseline (Stream)
Monitoring Report. Charlotte, NC.
Wildlands. 2023. Double Rock Mitigation Bank Parcel: As‐Built & Baseline Monitoring Report – Buffer
Mitigation. Charlotte, NC.
Wildlands. 2022. Double Rock Mitigation Bank Parcel: Buffer Mitigation Plan. Charlotte, NC.
Wildlands. 2022. Wildlands Catawba 01 Umbrella Mitigation Bank: Double Rock Mitigation Plan.
Charlotte, NC.
Wildlands. 2022. Wildlands Catawba Umbrella Mitigation Banking Instrument. Wildlands Holding VI,
LLC., Charlotte, NC.
APPENDIX A. Figures
115
268
16
18
421 421
90
16
16
90
127
115
115
901
21
70 70
321
77
40
Taylorsville
Statesville
Newton
Hickory
21 421
601
Yadkinville
21
70
64
40
77
77
Mocksville
^_
ALEXANDER
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A
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0 5 10 Miles
Conservation Easement
County Boundaries
^_Double Rock Bank Parcel Location
Figure 1: Vicinity Map
Catawba 01 Umbrella Mitigation Bank
Double Rock Mitigation Bank Parcel
Catawba River Basin (03050101)
Alexander County, NC
St
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a
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R
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2022 Aerial PhotographyDirections: From Charlotte, take I-77 North.
Take exit 51 onto I-40 East. In 0.4 miles keep
left toward I-40 West. Take exit 144 and turn
right onto Old Mountain Rd. In around 6 miles
turn left onto Drumstand Rd. Turn right onto
Mt Wesley Church Rd and in 2 miles make
another right onto Stikeleather Rd. Go about
0.6 miles and take a right. The project is
located down the driveway on the right.
¹
0 700 Feet¹
^_
£¤421
£¤421
£¤601
§¨¦77
Double Rock
Mitigation Site
03050101130010
0 10 20 Miles ¹
County Boundaries
Service Area - HUC 03050101
14 Digit HUC - 03050101130010
Municipalities
^_Project Location
Figure 2: Credit Service Area Map
Catawba 01 Umbrella Mitigation Bank
Double Rock Mitigation Bank Parcel
Catawba River Basin (03050101)
Alexander County, NC
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Reach 2
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Reach 1DReach 1C
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Elk Shoals Creek
Figure 3: Project Components/Assets Map
Catawba 01 Umbrella Mitigation Bank
Double Rock Mitigation Bank Parcel
Catawba River Basin (03050101)
2022 Aerial Photography
¹
Alexander County, NC
0 200 400 Feet
Project Location
Conservation Easement
Riparian Restoration for Buffer Credits (0-100')
Riparian Preservation for Buffer Credits (0-100')
Riparian Preservation for Buffer Credits (101-200')
No Credit
Internal Crossings
Project Streams
Stromwater BMP
Non-Project Streams
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Reach 1DReach 1C
Reach 1B
Reach 1A
Elk Shoals Creek
VP4
VP7
VP6
VP5
VP8MP2
Figure 4: Monitoring Components Map
Catawba 01 Umbrella Mitigation Bank
Double Rock Mitigation Bank Parcel
Catawba River Basin (03050101)
2022 Aerial Photography
¹
Alexander County, NC
0 200 400 Feet
Project Location
Conservation Easement
Internal Crossings
Existing Wetlands
Riparian Restoration for Buffer Credits (0-100')
Riparian Preservation for Buffer Credits (0-100')
Riparian Preservation for Buffer Credits (101-200')
No Credit
Project Streams
Stormwater BMP
Non-Project Streams
[Fenceline
GF Drone Photos (DP)
!P Reach Break
Permanent (VP) & Mobile Plots (MP)
Criteria Met - Buffer
Criteria Met - Buffer & Stream
APPENDIX B. Bank Credit Ledger
Sale/
Release Date Purchaser or % Credit Release Project Name Gov't Requiring
Square Feet Acres Square Feet Acres Square Feet Acres
11/17/2022 Task 1 & 7 Credit Release (25%)85,088.000 1.953 - 85,088.000 1.953 NCDWR
5/1/2023 Duke Energy Carolinas, LLC Allen Stream Station South Starter Landfill Basin (DWR#20230416) 28,612.00 0.657 56,476.000 1.297 NCDWR
7/21/2023 Task 2 Credit Release (20%)68,070.400 1.563 124,546.400 2.859 NCDWR
Totals 153,158.400 3.516 28,612.000 0.657 124,546.400 2.859
Credits Released/Available to
Bank
Credits Debited/Sold From
Bank Buffer Credit Balance
Catawba Umbrella Mitigation Banking Instrument (UMBI):
Double Rock Bank Parcel
Catawba River Basin HUC 03050101
Buffer Restoration/Preservation Credit Ledger
Date Last Updated: 8-10-2023
DWR Project #: 2020-1095v1
APPENDIX C. Vegetation Assessment Data
Table 6. Vegetation Plot Success Summary
Double Rock Mitigation Bank Parcel
DWR No. 2020‐1095v1
Monitoring Year 1 ‐ 2023
VP4 1 35.863278 ‐81.097627 10 3 0 10 405 405 3 Yes
VP5 1 35.863201 ‐81.095686 13 2 0 13 526 526 8 Yes
VP6 1 35.864637 ‐81.093818 14 1 52 66 567 2,671 11 Yes
VP7 1 35.863595 ‐81.093563 11 5 0 11 445 445 7 Yes
VP8 1 35.863047 ‐81.094146 15 1 0 15 607 607 9 Yes
MP2 1 35.862985 ‐81.096041 13
0 1 14 526 567 8 Yes
1Vegetation Threshold Met is based on the MY5 interim vegetative requirement of 260 stems per acre.
Planted Living
Stems per ACRE
Total Living
Stems per ACRE
Total
Species
Vegetation
Threshold Met?1Plot Year Latitude Longitude
Planted Living
Stems
Dead/Missing
Stems
Volunteer
Stems
Total Living
Stems
Double Rock Mitigation Bank Parcel
DWR No. 2020‐1095v1
Monitoring Year 1 ‐ 2023
Scientific Name Common Name Species Type
PnoLS P‐all T PnoLS P‐all T PnoLS P‐all T PnoLS P‐all T PnoLS P‐all T PnoLS P‐all T PnoLS P‐all T
Acer rubrum Red Maple Tree 50 50
Betula nigra River Birch, Red Birch Tree 555222111444333151515161616
Carpinus caroliniana Ironwood Shrub Tree 1 1 1 111222
Celtis laevigata Southern Hackberry, Sugarberry Shrub Tree 111111 111333333
Cornus florida Flowering Dogwood Shrub Tree 1 1 1 111222555
Diospyros virginiana American Persimmon, Possumwood Tree 222222 222666666
Lindera benzoin Northern Spicebush Shrub Tree 1 1 1 111222
Platanus occidentalis Sycamore, Plane‐tree Tree 444333444111222141414151515
Quercus michauxii Basket Oak, Swamp Chestnut Oak Tree 111111 222222
Quercus phellos Willow Oak Tree 111111111222222777888
Quercus rubra Northern Red Oak Tree 111111222333
Salix nigra Black Willow Tree 2 2
Ulmus rubra Slippery Elm, Red Elm Tree 222222111222777777
Viburnum prunifolium Black Haw, Nannyberry Shrub Tree 1 1 1 111111333333
Xanthorhiza simplicissima Yellowroot, Brook‐feather Shrub 333
10 10 10 13 13 13 14 14 66 11 11 11 15 15 15 63 63 115 75 75 75
3338889911777999121214131313
405 405 405 526 526 526 567 567 2,671 445 445 445 607 607 607 510 510 931 607 607 607
Color for Density PnoLS: Number of planted stems excluding live stakes
Exceeds requirements by 10% P‐all: Number of planted stems including live stakes
Exceeds requirements, but by less than 10% T: Total stems
Fails to meet requirements, by less than 10%
Fails to meet requirements by more than 10%
Volunteer species included in total
Permanent Vegetation Plot Annual Mean
MY1 (2023)
5
Table 7a. Planted and Total Stem Counts
Stem count
Permanent Plot 4
1
Permanent Plot 7Permanent Plot 6
size (ares)
Permanent Plot 5
1
Current Permanent Vegetation Plot Data (MY1 2023)
Stems per ACRE
0.0247size (ACRES)0.0247
11
0.0247 0.1236
5
MY0 (2023)
Species count
1
0.0247 0.0247
Permanent Plot 8
0.1236
Double Rock Mitigation Bank Parcel
DWR No. 2020‐1095v1
Monitoring Year 1 ‐ 2023
Scientific Name Common Name Species Type MP2 MY1 (2023) MY0 (2023) MY1 (2023) MY0 (2023)
TTT TT
Acer rubrum Red Maple Tree 50
Betula nigra River Birch, Red Birch Tree 2 2 3 17 19
Carpinus caroliniana Ironwood Shrub Tree 1 11 23
Celtis laevigata Southern Hackberry, Sugarberry Shrub Tree 33
Cornus florida Flowering Dogwood Shrub Tree 126
Diospyros virginiana American Persimmon, Possumwood Tree 1 11 77
Lindera benzoin Northern Spicebush Shrub Tree 113
Platanus occidentalis Sycamore, Plane‐tree Tree 4 4 3 18 18
Quercus michauxii Basket Oak, Swamp Chestnut Oak Tree 22
Quercus phellos Willow Oak Tree 2 22 910
Quercus rubra Northern Red Oak Tree 225
Salix nigra Black Willow Tree 1 13
Ulmus rubra Slippery Elm, Red Elm Tree 2 21 98
Viburnum prunifolium Black Haw, Nannyberry Shrub Tree 1 11 44
Xanthorhiza simplicissima Yellowroot, Brook‐feather Shrub 104
14 14 17 129 92
111 66
0.0247 0.0247 0.0247 0.1483 0.1483
8 8 11 15 13
567 567 688 870 621
Color for Density PnoLS: Number of planted stems excluding live stakes
Exceeds requirements by 10% P‐all: Number of planted stems including live stakes
Exceeds requirements, but by less than 10% T: Total stems
Fails to meet requirements, by less than 10%
Fails to meet requirements by more than 10%
Volunteer species included in total
Mobile Vegetation Plot
Annual Mean Overall Site Annual Mean
Stems per ACRE
Table 7b. Planted and Total Stem Counts
Stem count
size (ares)
Species count
size (ACRES)
Current Mobile Vegetation Plot (MP) Data (MY1 2023)
APPENDIX D: Vegetation Monitoring Plot Photos and Data Results
Double Rock Mitigation Bank Parcel
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Permanent Vegetation Plot 4 ‐ Year 1
Tree ID Species X (m) Y (m) Height (cm) Vigor
1 Xanthorhiza simplicissima 0.9 1.0 Missing
2 Betula nigra 1.3 3.3 39 4
3 Betula nigra 1.6 5.7 98 4
4 Xanthorhiza simplicissima 1.4 8.1 Missing
5 Platanus occidentalis 6.2 9.5 67 3
6 Platanus occidentalis 6.5 6.7 42 4
7 Betula nigra 6.0 4.6 57 4
8 Platanus occidentalis 5.5 1.6 Missing
9 Betula nigra 8.9 0.6 134 4
10 Platanus occidentalis 9.3 3.6 91 4
11 Platanus occidentalis 9.7 5.8 59 4
12 Betula nigra 9.7 8.2 114 4
13 Quercus phellos 9.6 9.8 39 3
Double Rock Mitigation Bank Parcel
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Permanent Vegetation Plot 5 ‐ Year 1
Tree ID Species X (m) Y (m) Height (cm) Vigor
14 Platanus occidentalis 2.7 0.8 80 4
15 Betula nigra 5.9 0.7 62 4
16 Platanus occidentalis 9.4 0.5 120 4
17 Ulmus rubra 9.5 2.4 82 4
18 Quercus phellos 6.3 2.4 Missing
19 Diospyros virginiana 3.0 2.5 41 1
20 Cornus florida 3.1 4.1 Missing
21 Diospyros virginiana 6.4 4.3 58 3
22 Betula nigra 6.7 6.0 93 4
23 Viburnum prunifolium 3.3 5.8 55 4
24 Platanus occidentalis 3.3 7.5 93 4
25 Ulmus rubra 6.5 7.8 84 4
26 Quercus phellos 8.8 7.8 27 2
27 Cornus florida 7.4 9.5 42 1
28 Celtis laevigata 3.5 9.5 32 1
Double Rock Mitigation Bank Parcel
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Permanent Vegetation Plot 6 ‐ Year 1
Tree ID Species X (m) Y (m) Height (cm) Vigor
29 Platanus occidentalis 0.6 2.1 84 4
30 Lindera benzoin 2.5 2.3 Missing
31 Betula nigra 4.5 2.3 108 4
32 Ulmus rubra 6.6 2.4 61 4
33 Platanus occidentalis 8.7 2.4 92 4
34 Quercus michauxii 8.8 5.6 81 4
35 Celtis laevigata 6.8 5.7 62 2
36 Platanus occidentalis 4.9 5.7 128 4
37 Diospyros virginiana 2.9 5.6 70 3
38 Quercus phellos 0.9 5.7 80 4
39 Ulmus rubra 0.9 9.1 64 4
40 Diospyros virginiana 2.1 9.0 91 4
41 Carpinus caroliniana 4.0 9.1 85 3
42 Lindera benzoin 6.5 9.2 50 3
43 Platanus occidentalis 9.1 9.3 81 4
Double Rock Mitigation Bank Parcel
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Permanent Vegetation Plot 7 ‐ Year 1
Tree ID Species X (m) Y (m) Height (cm) Vigor
44 Viburnum prunifolium 5.0 0.3 38 4
45 Betula nigra 6.9 0.5 88 4
46 Quercus michauxii 8.8 0.5 104 4
47 Betula nigra 8.8 4.4 114 4
48 Betula nigra 6.9 4.1 127 4
49 Xanthorhiza simplicissima 5.1 3.7 Missing
50 Carpinus caroliniana 3.5 3.4 Missing
51 Platanus occidentalis 2.0 3.0 97 4
52 Quercus phellos 0.2 2.6 53 3
53 Betula nigra 0.5 6.3 97 4
54 Quercus rubra 2.2 6.7 Missing
55 Cornus florida 3.9 7.2 Missing
56 Quercus phellos 5.8 7.5 73 4
57 Quercus rubra 7.7 7.6 40 1
58 Ulmus rubra 9.4 8.1 56 4
59 Cornus florida 0.7 9.4 Missing
Double Rock Mitigation Bank Parcel
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Permanent Vegetation Plot 8 ‐ Year 1
Tree ID Species X (m) Y (m) Height (cm) Vigor
60 Celtis laevigata 0.8 0.8 52 3
61 Diospyros virginiana 4.4 4.4 40 1
62 Betula nigra 8.1 0.6 114 4
63 Quercus phellos 8.0 2.8 59 4
64 Platanus occidentalis 4.6 2.7 104 4
65 Cornus florida 1.2 2.6 54 3
66 Ulmus rubra 1.1 4.6 74 4
67 Viburnum prunifolium 4.9 4.9 55 4
68 Platanus occidentalis 8.1 4.7 171 4
69 Quercus rubra 8.5 6.9 41 1
70 Betula nigra 5.1 6.9 122 4
71 Betula nigra 1.6 6.2 Missing
72 Diospyros virginiana 1.6 7.8 87 4
73 Quercus phellos 1.6 9.7 7 2
74 Betula nigra 4.7 9.0 77 4
75 Ulmus rubra 8.7 9.0 93 4
Double Rock Mitigation Bank Parcel
Appendix D: Vegetation Monitoring Plot Photos and Data Results
Mobile Vegetation Plot 2 ‐ Year 1
Tree ID Species Height (cm) Vigor
200 Diospyros virginiana 71 4
201 Betula nigra 92 4
202 Viburnum prunifolium 39 4
203 Platanus occidentalis 78 4
204 Quercus phellos 56 4
205 Platanus occidentalis 140 4
206 Platanus occidentalis 61 4
207 Quercus phellos 47 4
208 Carpinus caroliniana 84 4
209 Betula nigra 97 4
210 Platanus occidentalis 82 4
211 Ulmus rubra 76 4
212 Ulmus rubra 77 4
213 Salix nigra 105 4
APPENDIX E: Overview Photographs
Project Overview (11/01/2023)
Drone Photo Point 1: Elk Shoals Creek Reach 1A – upstream (11/01/2023)
Drone Photo Point 2: Elk Shoals and Stikeleather Trib Confluence – upstream (11/01/2023)
Drone Photo Point 3: Elk Shoals Creek Reach 2 – downstream (11/01/2023)
Drone Photo Point 4: Elk Shoals Creek Reach 2 – upstream (11/01/2023)
Drone Photo Point 5: Elk Shoals Creek and Randell Trib Confluence – downstream (11/01/2023)
Drone Photo Point 6: Randell Trib – upstream (11/01/2023)