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Home My WebLink About20201095 Ver 1_DoubleRock_Streams_MY1_Report_Draft_20240214 Wildlands Engineering, Inc.  phone 704-332-7754  1430 S. Mint St., Suite 104  Charlotte, NC 28203 February 12, 2024 U.S. Army Corps of Engineers Wilmington District, Asheville Field Office 151 Patton Avenue, Suite 208 Asheville, NC 28801 Attention: Steve Kichefski Subject: Action ID No. SAW‐2020‐01532 Wildlands Catawba 01 Umbrella Mitigation Bank – Double Rock Mitigation Site Third Credit Release Milestone (Year 1 Monitoring Completion) Dear Mr. Kichefski: This correspondence is in reference to the Double Rock Mitigation Site, part of the Wildlands Catawba 01 Umbrella Mitigation Bank. The 19.33‐acre site is in the Lookout Shoals water supply watershed of the Upper Catawba River Basin (03050101) and is located 6 miles southwest of Taylorsville in Alexander County, NC. The purpose of this letter is to request the third release of credits (Year 1 Monitoring Report – Complete) for this mitigation site. Monitoring year 1 (MY1) site assessments were conducted between July and December 2023. Overall, the Site has met the required stream, vegetation, and hydrologic success criteria for MY1. All stream banks on the Site are stable and functioning as intended, and three of the four restored project streams recorded at least one bankfull event. Vegetation assessments indicated an average planted stem density of 513 stems per acre, which exceeds the MY3 requirement of 320 stems per acre. Asian spiderwort (Murdannia keisak) was treated in a few riffles along Elk Shoals Creek and Randell Tributary. Invasive species treatments conducted during construction continue to remain successful, and no new populations of those species have been noted. The easement boundary has been checked, and no encroachment issues were identified. The established photo points for the visual assessment of the existing Hexastylis naniflora (HENA) populations continue to demonstrate that the populations and their habitat have remained undisturbed. Pursuant to the Umbrella Mitigation Banking Instrument and the site‐specific Double Rock Final Mitigation Plan, Wildlands is requesting the release of ten percent (10%) of the Mitigation Site’s total stream restoration, enhancement, and preservation credits or 444.460 stream mitigation units (SMUs) to be available for sale. With this release, 40% of the total SMUs will have been released. The Site’s credit release schedule and credit ledger are included below. Please contact us at 704‐332‐7754 if you have any questions. Thank you, Andrea Eckardt ‐ Bank Manager Kirsten Gimbert ‐ Project Manager Type Jurisdiction Date Perchaser or % Credit Release Project Name Credits Permits (SAW #) Credit Classification Impact HUC Impact Quantity Total Withdrawn Available Comments SMU 10/20/2022 Task 1 Credit Release (15%)666.69 Warm Stream 666.69 Initial Credit Release-Bank Establishment 15% SMU Mecklenburg 3/7/2023 Metrolina Properties Limited Partnership NorthLake Street Extension 610.00 SAW-2022-01661 Warm Stream 03050101 305.00 610.00 56.69 SMU Mecklenburg 5/15/2023 Charter Properties, LLC, Phil Vetter Old Statesville Road Apartments 359.00 SAW-2011-02399 Warm Stream 03050101 359.00 56.69 0.000 Please note that 168.19 SMUs came from Double Rock Mitigation Site and the remaining 190.81 SMUs will come from Firestone Mitigation Site SMU 9/27/2023 Task 2 Credit Release (15%)666.69 Warm Stream 666.69 As-Built Credit Release (15%). Please note release letter from 9/27/23 has the incorrect amount of 669.69 SMUs being released as opposed to the correct amount of 666.69 SMUs. See email from 9/28/23 regarding this issue. Totals:1,333.38 666.69 666.69 Catawba 01 Umbrella Mitigation Bank: Double Rock Mitigation Site Stream Credit Ledger Restoration & Enhancement Catawba River Basin HUC 03050101 Date Last Updated: 2-5-2024 USACE Action ID No. SAW-2020-01532 Total Credits Released To Date: 1,336.38 Type Jurisdiction Date Perchaser or % Credit Release Project Name Credits Permits (SAW #) Credit Classification Impact HUC Impact Quantity Total Withdrawn Available Comments SMU 10/20/2022 Task 1 Credit Release (100%)111.50 Warm Stream 111.50 Initial Credit Release-Bank Establishment (100% Preservation Credits) SMU Mecklenburg 5/15/2023 Charter Properties, LLC, Phil Vetter Old Statesville Road Apartments 359.00 SAW-2011-02399 Warm Stream 03050101 359.00 111.50 - Please note that 168.19 SMUs came from Double Rock Mitigation Site and the remaining 190.81 SMUs will come from Firestone Mitigation Site Totals:111.50 111.50 - Catawba 01 Umbrella Mitigation Bank: Double Rock Mitigation Site Stream Credit Ledger Preservation Catawba River Basin HUC 03050101 Date Last Updated: 2-5-2024 USACE Action ID No. SAW-2020-01532 Total Credits Released To Date: 111.50 Project Name: Sponsor Name: USACE Action ID: NCDWQ Action ID: Non-Forested Wetland Credits Warm Water Cool Water Cold Water Riparian Riverine Riparian Non-Riverine Non-Riparian Coastal 4556.1 Scheduled Releases Warm Water Cool Water Cold Water Scheduled Releases Riparian Riverine Riparian Non-Riverine Non-Riparian Scheduled Releases Coastal 1 (Bank/Site Establishment)1, 2 15%778.19 15%15%Dec-22 10/20/2022 2 (Year 0/As-Built)3 15%666.69 15%15%Aug-23 9/27/2023 3 (Year 1 Monitoring)10%444.46 10%10%Mar-24 4 (Year 2 Monitoring)10%444.46 10%15%Mar-25 5 (Year 3 Monitoring)10%444.46 15%20%Mar-26 6 (Year 4 Monitoring)5%222.23 5%10%Mar-27 7 (Year 5 Monitoring)10%444.46 15%15%Mar-28 8 (Year 6 Monitoring)5%222.23 5%NA NA Mar-29 9 (Year 7 Monitoring)10%444.46 10%NA NA Mar-30 Stream Bankfull Standard4 10%444.46 NA NA NA NA NA NA Varies4 Total Credits Release to Date 4,556.10 - Date Wilmington District Mitigation Bank Credit Release Schedule Double Rock Mitigation Site County:Alexander Wildlands Holdings VI, LLC 8-Digit HUC:03050101 Potential Credits from As-Built Survey SAW-2020-01532 Year Project Instituted:2022 2020-1095v1 Date Prepared:2/5/2024 Total Potential Credits Credit Classification Stream Credits Forested Wetland Credits Potential Credits from Mitigation Plan Current and Future Credit Releases Credit Release Milestone Stream Credits Forested Wetland Credits Non-Forested Wetland Credits Projected Release Date Actual Release Date 4 - A 10% reserve of credits to be held back until the bankfull event performance standard has been met. Contingencies (if any): Credit Release 1 is 15% R&EII and 100% Preservation Signature of Wilmington District Official Approving Credit Release 1 - The first credit release milestone is based on the potential credits stated in the approved mitigation plan. 2 - The first credit release shall occur upon establishment of the mitigation bank, which includes the following criteria: 1) Execution of the MBI or UMBI by the Sponsor and the USACE; 2) Approval of the final Mitigation Plan; 3) Mitigation bank site must be secured; 4) Delivery of the financial assurances described in the Mitigation Plan; 5) Recordation of the long-term protection mechanism and title opinion acceptable to the USACE; 6) 404 permit verification for construction of the site, if required. 3 - The second credit release is based on the credit totals from the as-built survey, and may differ slightly from the credit totals stated in the mitigation plan. MONITORING YEAR 1 ANNUAL REPORT Draft February 2024 WILDLANDS CATAWBA 01 UMBRELLA MITIGATION BANK – DOUBLE ROCK MITIGATION SITE Alexander County, NC Catawba River Basin HUC 03050101 USACE Action ID No. SAW‐2020‐01532 NCDWR # 2020‐1095 v1 Data Collection Period: July ‐ December 2023 PREPARED BY: Wildlands Engineering, Inc. 1430 South Mint Street, Suite 104 Charlotte, NC 28203 Phone: 704‐332‐7754 Double Rock Mitigation Site Page i Monitoring Year 1 Annual Report MONITORING YEAR 1 ANNUAL REPORT WILDLANDS CATAWBA 01 UMBRELLA MITIGATION BANK – DOUBLE ROCK MITIGATION SITE Catawba River Basin TABLE OF CONTENTS Section 1: PROJECT OVERVIEW ........................................................................................................ 1‐1 1.1 Project Quantities and Credits ................................................................................................... 1‐1 1.2 Project Goals and Objectives ..................................................................................................... 1‐1 1.3 Project Attributes ....................................................................................................................... 1‐1 Section 2: Monitoring Year 1 Data Assessment ................................................................................ 2‐1 2.1 Vegetative Assessment .............................................................................................................. 2‐1 2.2 Vegetation Areas of Concern and Management Activities ........................................................ 2‐1 2.3 Stream Assessment .................................................................................................................... 2‐2 2.4 Stream Areas of Concern ........................................................................................................... 2‐2 2.5 Hydrology Assessment ............................................................................................................... 2‐2 2.6 Adaptive Management Plan....................................................................................................... 2‐2 2.7 Monitoring Year 1 Summary ...................................................................................................... 2‐2 Section 3: REFERENCES .................................................................................................................... 3‐1 TABLES Table 1: Project Quantities and Credits ..................................................................................................... 1‐2 Table 2: Goals, Performance Criteria, and Functional Improvements ...................................................... 1‐3 Table 3: Project Attributes ......................................................................................................................... 1‐5 FIGURES Figure 1 Current Condition Plan View (Key) Figures 1a‐c Current Condition Plan View APPENDICES Appendix A Visual Assessment Data Table 4a‐c Visual Stream Morphology Stability Assessment Table Table 5 Vegetation Condition Assessment Table Stream Photographs Vegetation Plot Photographs Hexastylis Naniflora (HENA) Photographs Appendix B Vegetation Plot Data Table 6a‐b Planted and Total Stem Counts Table 7 Vegetation Plot Criteria Attainment Appendix C Stream Geomorphology Data Cross‐Section Plots Table 8a‐b Baseline Stream Data Summary Table 9 Cross‐Section Morphology Monitoring Summary Double Rock Mitigation Site Page ii Monitoring Year 1 Annual Report Appendix D Hydrology Data Table 10 Bankfull Events Table 11 Rainfall Summary Recorded Bankfull Event Plot Bankfull Photographs Appendix E Project Timeline and Contact Info Table 12 Project Activity and Reporting History Table 13 Project Contact Table Appendix F Additional Documentation Wildlands’ Response to IRT Comments for the As‐built & Baseline Monitoring Report & Notice of Initial Credit Release (September 27, 2023) Double Rock Mitigation Site Page 1‐1 Monitoring Year 1 Annual Report Section 1: PROJECT OVERVIEW Wildlands Holdings VI, LLC (Sponsor) developed the Double Rock Mitigation Site (Site) under the Wildlands Catawba 01 Umbrella Mitigation Bank (Bank). Wildlands Holdings VI, LLC is managed by Wildlands Engineering, Inc. (Wildlands) and was developed for the sole purpose of holding mitigation banks. The Site is located in Alexander County approximately 6 miles southeast of Taylorsville, NC. The project involves the restoration, enhancement, and preservation of Elk Shoals Creek and five unnamed tributaries (Figure 1) and the implementation of one stormwater best management practice (BMP). The Site is located within the Elk Shoals Creek Targeted Local Watershed (TLW) within the Lookout Shoals Lake water supply watershed, classification WS‐IV. The Site drains into the Catawba River, a 303d listed stream approximately six miles downstream. 1.1 Project Quantities and Credits The Site will provide stream mitigation credits in the Catawba 01 (HUC 03050101). If the official service areas of the Catawba River Basin are expanded/combined in the future, the service area of this Site will automatically be expanded to include the expanded/combined service area. Mitigation work within the Site included restoration, enhancement II, and preservation of perennial and intermittent stream channels, as well as the implementation of one stormwater BMP. Table 1 below shows stream credits by reach and the total amount of stream credits expected at closeout. The Site will also provide riparian buffer credits. The Monitoring Year 1 Report for the Double Rock Buffer Mitigation Bank Parcel has been submitted separately. 1.2 Project Goals and Objectives The project is intended to provide numerous ecological benefits. Table 2 below describes the expected outcomes to water quality and ecological processes and provides project goals and objectives. 1.3 Project Attributes The Site is comprised of two parcels. One is maintained as an active cattle farm, and the other is currently wooded but has been managed for both timber and agriculture in the past. Historic aerial photographs from 1950 to 2016 show that onsite streams have existed in their same approximate location over 65 years, with limited changes to the agricultural management of the land. In 1983, the agricultural fields along Elk Shoals Creek Reach 1 decreased somewhat in size, and the remnant effects of historic logging on the ridgelines of Matheson Tributary watershed were reforesting. Stikeleather Road was straightened between 1993 and 2006, but the Elk Shoals Creek and Stikeleather Creek Road crossings remained in the same approximate locations. This consistency in land use within the project watershed indicates that watershed processes affecting hydrology, sediment supply, and nutrient and pollutant delivery have not varied widely over time. Additionally, the Site is located in a rural watershed where the dominant land uses are agriculture, forest, and silviculture. The land is zoned for low‐density residential and agriculture purposes; therefore, watershed processes and stressors from outside the project limits are likely to remain consistent throughout the implementation, monitoring, and closeout of this project. Table 3 below and Table 8a‐b in Appendix C present additional information on the project attributes and pre‐restoration conditions. Double Rock Mitigation Site Page 1‐2 Monitoring Year 1 Annual Report Table 1: Project Quantities and Credits PROJECT MITIGATION QUANTITIES Project Segment Existing Footage (LF)1 Mitigation Plan Footage (LF)1,2 Mitigation Category Restoration Level Priority Level Mitigation Ratio (X:1) Credits As‐Built Footage (LF)1,2 Comments Stream Elk Shoals Creek Reach 1A 691.0 Warm R 1 & 2 1 691.000 691.000 Full channel restoration 1,005 Elk Shoals Creek Reach 1B 199.0 Warm EII N/A 2.5 79.600 199.000 Spot bank grading and structure placement, bankfull bench Elk Shoals Creek Reach 2 2061 1996.0 Warm R 1 & 2 1 1,996.000 1,998.000 Full channel restoration Stikeleather Tributary Reach 1A 444.0 Warm R 1 & 2 1 444.000 521.000 Full channel restoration Stikeleather Tributary Reach 1A, 1B, & 1D 405.0 Warm EII N/A 2.5 162.000 348.000 Spot bank grading and instream structures 1,056 Stikeleather Tributary Reach 1C 88.0 Warm P N/A 10 8.800 75.000 Preservation Randell Tributary 1,330 1027.0 Warm R 1 & 2 1 1,027.000 1,027.000 Full channel restoration Matheson Tributary 918 45.0 Warm R N/A 1 45.000 39.000 Full channel restoration Matheson Tributary 868.0 Warm P N/A 10 86.800 874.000 Preservation Matheson Tributary A 86 80.0 Warm P N/A 10 8.000 80.000 Stabilization of non‐jurisdictional headcut with SPSC, preservation below Matheson Tributary B 83 79.0 Warm P N/A 10 7.900 79.000 Preservation 1 All internal and external crossing lengths have been removed from all reach lengths. 2 At confluences, the reach length has been trimmed to the top of bank of the receiving stream. PROJECT CREDITS Restoration Level Stream Riparian Wetland Non‐ Riparian Wetland Warm Cool Cold Riverine Non‐ Riverine Restoration 4,203.000 Enhancement I ‐‐ Enhancement II 241.600 Preservation 111.500 Totals 4,556.100 1,005 1,056 918 Double Rock Mitigation Site Page 1‐3 Monitoring Year 1 Annual Report Table 2: Goals, Performance Criteria, and Functional Improvements Goal Objective/ Treatment Likely Functional Uplift Performance Criteria Measurement Cumulative Monitoring Results Improve instream habitat. Install habitat features such as constructed steps, cover logs, and brush toes on restored reaches. Add woody materials/large woody debris (LWD) to channel beds. Construct pools of varying depth. Increase and diversify available habitats for macroinvertebrates, fish, and amphibians leading to colonization and increase in biodiversity over time. Add complexity including LWD to the streams. There is no required performance standard for this metric. Visual inspections. N/A Restoring and enhancing degraded stream channels to reduce erosion and reconnect streams to floodplains, restoring hydrologic connection. Reconstruct stream channels with designed bankfull dimensions and depth based on reference reach data and regional curves. Allow more frequent flood flows to disperse on the floodplain; reduce shear stress on channel; support geomorphology and higher‐level functions. Four bankfull events to occur in separate years during the 7‐year monitoring period for Elk Shoals Creek R1A, Elk Shoals Creek R2, Stikeleather Trib R1A1,2, and Randell Trib. Four pressure transducers were installed to record flow elevations and bankfull events (4 crest gages.)2,3 In MY1, bankfull events were recorded on Elk Shoals Creek Reach 2 and Randell Tributary. Bankfull photographic evidence was documented on Elk Shoals Creek Reach 1A. It is expected that all channels will meet the final performance criteria. Restore and enhance native floodplain vegetation. Convert active cattle pasture to forested riparian buffers along all Site streams, which will slow and treat sediment laden runoff from adjacent pastures and fields before entering streams. Protect and enhance existing forested riparian buffers. Treat invasive species. Reduce sediment inputs from bank erosion and runoff. Increase nutrient cycling and storage in floodplain. Provide riparian habitat. Add a source of LWD and organic material to stream. Survival rate of 320 stems per acre at MY3, 260 planted stems per acre at MY5 with an average height of 7 feet, and 210 stems per acre at MY7 with an average height of 10 feet. Woody shrub and sub‐canopy species. are not subject to height requirements. 9 (7 permanent, 2 mobile), 100‐m2 vegetation plots placed on 2% of the planted area of the project and monitored in MY1, MY2, MY3, MY5, and MY7.4 8 out of 9 (89%) vegetation plots have a planted stem density greater than 320 stems per acre. In MY1, Asian spiderwort was treated. No other invasive species were observed within the project area. Note: BHR = bank height ratio, ER = entrenchment ratio, and LWD = large woody debris 1An upstream, off‐site impoundment on Stikeleather Tributary restricts surface water flow over an existing spillway; therefore, after construction, it is anticipated that the impoundment will likely continue to impact downstream flow during the drier parts of the year, and Stikeleather Tributary may experience fewer bankfull events than the other Site streams. 2Stream flow will also be included as a hydrologic measurement for restored "B" type channels, since floodplain interaction on these types of channels is less concerning as a function hydrologic measurement. 3Gages will be set to record every 3 hours. Evidence of bankfull events and streamflow will be documented with photos when possible. 4Six (5 permanent and 1 mobile) of the 9 vegetation plots will also be used for the Double Rock Buffer Mitigation Bank. 5ER data is available upon request. Double Rock Mitigation Site Page 1‐4 Monitoring Year 1 Annual Report Table 2: Goals, Performance Criteria, and Functional Improvements Goal Objective/ Treatment Likely Functional Uplift Performance Criteria Measurement Cumulative Monitoring Results Improve the stability of stream channels. Reconstruct stream channels slated for restoration with stable dimensions and appropriate depth relative to the existing floodplain. Add bank revetments and instream structures to protect restored/ enhanced streams. Reduce sediment inputs from bank erosion. Reduce shear stress on channel boundary. BHR < 1.2; ER > 2.2 for C/E channels, ER > 1.4 for B channels. Visual assessments showing progression towards stability.5 Monitoring of 10 cross‐ sections in MY1, MY2, MY3, MY5 and MY7. Visual assessments will be assessed annually. Cross‐section photos and 22 photo points. In MY1, cross‐section survey results fall within design parameters. All streams are stable and functioning as designed. Permanently protect the project Site from harmful uses. Establish conservation easements on the Site. Exclude livestock from Site streams. Remove agricultural uses from the riparian buffer. Protect Site from encroachment on the riparian corridor and direct impact to streams, wetlands, and buffers. No easement encroachment; no cutting, grading, or similar activities that would negatively affect the buffer's function. Boundary signage is intact. Visual inspection of the easement boundary. No encroachments observed in MY1. Exclude livestock from stream channels. Install livestock fencing as needed to exclude livestock from stream channels and riparian areas or remove livestock from adjacent fields. Reduce nutrient and sediment inputs to the watershed. No cattle access within the easement; fencing to remain in good condition. Visual inspection of the easement boundary. No cattle encroachments observed in MY1. Treat concentrated agricultural runoff. Install a Step Pool Stormwater Conveyance (SPSC) BMP in areas of concentrated agricultural runoff to treat runoff and address an active head cut. Reduce nutrient and sediment inputs to the watershed. Diffuse flow is being maintained in the easement. Visual inspections withing the easement. N/A Note: BHR = bank height ratio, ER = entrenchment ratio, and LWD = large woody debris 1An upstream, off‐site impoundment on Stikeleather Tributary restricts surface water flow over an existing spillway; therefore, after construction, it is anticipated that the impoundment will likely continue to impact downstream flow during the drier parts of the year, and Stikeleather Tributary may experience fewer bankfull events than the other Site streams. 2Stream flow will also be included as a hydrologic measurement for restored "B" type channels, since floodplain interaction on these types of channels is less concerning as a function hydrologic measurement. 3Gages will be set to record every 3 hours. Evidence of bankfull events and streamflow will be documented with photos when possible. 4Six (5 permanent and 1 mobile) of the 9 vegetation plots will also be used for the Double Rock Buffer Mitigation Bank. 5ER data is available upon request. Double Rock Mitigation Site Page 1‐5 Monitoring Year 1 Annual Report Table 3: Project Attributes PROJECT INFORMATION Project Name Wildlands Catawba 01 Umbrella Mitigation Bank ‐ Double Rock Mitigation Site Project Area (acres) 19.33 Planted Area (acres) 11.1 County Alexander County Project Coordinates 35.863028, ‐81.101083 PROJECT WATERSHED SUMMARY INFORMATION Physiographic Province (Ecoregion) Piedmont (Northern Inner Piedmont) USGS HUC 8‐digit 03050101 DWR Sub‐basin 03‐08‐32 Project Drainage Area (acres) 1,379 River Basin Catawba USGS HUC 14‐digit 3050101130010 Land Use Classification 38% forested, 41% agricultural, 5% grassland, 4% shrubland, and 12% development Percentage of Impervious Area 2% REGULATORY CONSIDERATIONS Parameters Applicable? Resolved? Supporting Documentation Water of the United States ‐ Section 404 Yes Yes USACE Action ID No. SAW‐2020‐01532; DWR #2020‐1095 v1 Water of the United States ‐ Section 401 Yes Yes Endangered Species Act Yes Yes Agency Correspondence in Mitigation Plan (Wildlands, 2022) Historic Preservation Act Yes Yes Coastal Zone Management Act (CZMA or CAMA) No N/A N/A FEMA Floodplain Compliance Yes Yes FP‐23‐01 Essential Fisheries Habitat No N/A N/A Double Rock Mitigation Site Page 1‐6 Monitoring Year 1 Annual Report Table 3: Project Attributes REACH SUMMARY INFORMATION Parameters Elk Shoals Creek Reach 1A Elk Shoals Creek Reach 2 Stikeleather Trib Reach 1A Randell Trib Matheson Trib Pre‐project Length (feet) 691 2,061 444 1,330 45 Post‐project Length (feet) 691 1,998 521 1,027 39 Valley Confinement (Confined, moderately confined, unconfined) Unconfined Unconfined Confined Unconfined Confined Drainage Area (acres) 461 1,379 82 774 25 Perennial, Intermittent, Ephemeral Perennial Perennial Perennial Perennial Intermittent / Perennial DWR Water Quality Classification WS‐IV WS‐IV WS‐IV WS‐IV WS‐IV Dominant Stream Classification (existing) F4 Incised C4 G4 Incised E4 ‐‐ Dominant Stream Classification (proposed) C4 C4 B4 C4 B41 Dominant Evolutionary Classification (Simon) if applicable ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ WETLAND SUMMARY INFORMATION Parameters Wetland A Wetland B Wetland C Wetland D Wetland E Pre‐project Area (acres) 0.034 0.015 0.206 0.016 0.145 Post‐project Area (acres) 0.034 0.000 0.173 0.000 0.084 Wetland Type (non‐riparian, riparian) Riparian Riparian Riparian Riparian Riparian Mapped Soil Series Codorus loam, Fairview sandy clay loam Codorus loam Codorus loam, Fairview sandy clay loam Codorus loam Codorus loam, Fairview sandy clay loam Soil Hydric Status No No No No No Parameters Wetland F Wetland G Wetland H Wetland I Pre‐project Area (acres) 0.080 0.134 0.131 0.032 Post‐project Area (acres) 0.080 0.134 0.131 0.000 Wetland Type (non‐riparian, riparian) Riparian Riparian Riparian Riparian Mapped Soil Series Danripple sandy clay loam Danripple sandy clay loam Fairview sandy clay loam Codorus loam Soil Hydric Status No No No No 1Proposed stream classification. No existing dimension data collected for reach. Double Rock Mitigation Site Page 2‐1 Monitoring Year 1 Annual Report Section 2: Monitoring Year 1 Data Assessment Annual monitoring data will be reported in accordance with Regulatory Guidance Letter (RGL) 08‐03. The monitoring report shall provide project data chronology that will facilitate an understanding of project status, trends, research purposes, and assist in decision making regarding close‐out. The monitoring period will extend seven years beyond completion of construction or until performance criteria have been met. All survey data will be georeferenced to North Carolina State Plane coordinates. Annual monitoring and site visits were conducted during MY1 to assess the condition of the project. The vegetation and stream success criteria for the Site follow the approved success criteria presented in the Mitigation Plan (Wildlands, 2022). Performance criteria for vegetation, stream, and hydrologic assessment are located above in Table 2: Goals, Performance Criteria, and Functional Improvements. Methodology for annual monitoring is presented in the As‐built & Baseline Monitoring Report (Wildlands, 2023). Monitoring reports will be prepared in the fall of each year and submitted to USACE no later than April 1 of the following monitoring year. Monitoring features and locations are shown in Figures 1a‐c. 2.1 Vegetative Assessment The MY1 vegetative survey was completed in October 2023. Vegetation monitoring resulted in an average stem density range of 283 to 688 planted stems per acre, where eight out of the nine vegetation plots exceeded the interim requirement of 320 stems per acre required at MY3. Permanent vegetation plot (VP) 3 is the only plot that did not meet criteria with 283 stems per acre, though it is still meeting the MY5 density criteria of 260 stems per acre. In MY1, the average stem density was 513 planted stems per acre and the average stem height in MY1 is 71.5 cm (2.3 ft). Wildlands will continue to closely monitor the stem vigor and survival. The mobile plot (MP) sampling will be conducted within the additional wetland and buffer planted areas over the duration of the monitoring period. Overall, planted stems are healthy and there is a survival rate of over 79% within permanent vegetation plots. Therefore, supplemental planting is not currently warranted. Refer to Appendix A for vegetation plot photographs and Appendix B for vegetation plot data. As requested by the U.S. Fish and Wildlife Service (USFWS), 11 photo points were established across the Site, prior to construction, for the visual assessment of Hexastylis naniflora (HENA) populations during post‐construction monitoring. Photographs facing the North, East, South, and West were taken at each photo point documenting that no encroachment by non‐native and/or invasive species has occurred and that the identified HENA habitat has remained undisturbed since construction. Refer to Appendix A for the HENA photographs. 2.2 Vegetation Areas of Concern and Management Activities Vegetation management and herbicide applications were implemented during construction to prevent the spread of invasive species that could compete with planted native species. The mechanical removal of Chinese privet (Ligustrum sinense), multiflora rose (Rosa multiflora), and lespedeza (Lespedeza cuneata) have proven to be successful. The chemical removal of fescue on site has also been successful, where these invasive species have not been seen regrowing on the Site since the conclusion of construction activities. During MY1, small areas of Asian spiderwort (Murdannia keisak) were treated in several riffles along Elk Shoals Creek and Randell Tributary. The spiderwort was not negatively impacting the flow of the stream and new growth will slowly be shaded out as the riparian canopy develops. Wildlands’ plans to treat the Asian spiderwort twice a year during the growing season, as needed. The combined acreage of the Asian spiderwort does not meet the mapping threshold of 0.10 acres; therefore, it was not included in Table 5. Double Rock Mitigation Site Page 2‐2 Monitoring Year 1 Annual Report Invasive species will continue to be monitored, mapped, and controlled across the Site as necessary throughout the monitoring period. The Vegetation Condition Assessment Table (Table 5) is included in Appendix A. A full easement boundary inspection will be conducted every monitoring year to ensure that the easement remains intact and free from violations. In MY1, no easement encroachments were observed. 2.3 Stream Assessment Morphological surveys for MY1 were conducted in October 2023. All streams within the Site are stable and functioning as designed. Compared to design and as‐built dimensions, all 10 cross‐sections show little to no deviation in the bankfull areas and width‐to‐depth ratios, and bank height ratios are less than 1.2. Refer to Appendix A for the Visual Stream Morphology Stability Assessment Tables and stream photographs. Refer to Appendix C for stream geomorphology data. 2.4 Stream Areas of Concern The areas of bank erosion that were observed at as‐built on Randell Tributary (station 211+65 to 211+80) and Elk Shoals Creek (station 126+55 to 126+60) were repaired in June 2023 through the re‐ staking of matting and the addition of livestakes. The adjacent vegetation cover appears healthy and will continue to become established to help stabilize the banks and floodplain. All Randell Tributary and Elk Shoals Creek bank repairs that were previously reported in the As‐built & Baseline Monitoring Report appear successful and are no longer an issue. A site assessment last conducted in December 2023 found that there were no stream areas of concern across the project. The banks all appear stable and are well covered by newly established vegetation. 2.5 Hydrology Assessment Bankfull events were recorded on Elk Shoals Creek Reach 2 and Randell Tributary and are on track on track to meet performance standards of four bankfull events in separate years during the 7‐year monitoring period. Though neither automated crest gage on Elk Shoals Creek Reach 1A nor Stikeleather Tributary Reach 1A recorded a bankfull event in MY1, Elk Shoals Creek Reach 1A captured a geomorphically significant flow event in late August and photographs of bankfull evidence were taken in late October. Since Stikeleather Tributary 1A is classified as a Rosgen B‐type channel, where floodplain interaction is not an imperative function for hydrologic measurement, the gage on this reach will also record continuous inner channel stream flow throughout the monitoring period. Additional seasons of observation are required to better understand hydrology at the Site and thoroughly evaluate the success of project reaches. Refer to Appendix D for hydrologic data. 2.6 Adaptive Management Plan Site maintenance and adaptive measurement implementation will continue to follow those outlined in the project’s Final Mitigation Plan (Wildlands, 2022). No adaptive management plan (AMP) is needed at this time. 2.7 Monitoring Year 1 Summary Overall, the Site looks good, is performing as intended, and is expected to meet success criteria at the end of the 7‐year monitoring period. Eight of the nine vegetation plots have a density which exceeds the MY3 interim requirement of 320 planted stems per acre, and all streams within the Site are stable and meeting project goals. Crest gages documented bankfull events on Elk Shoals Creek Reach 2 and Randell Tributary, while photos of wrack lines and out of bank flow were documented on Elk Shoals Creek Reach 1A. Invasives were treated during construction and MY1 and new populations will be addressed Double Rock Mitigation Site Page 2‐3 Monitoring Year 1 Annual Report throughout the monitoring years. The easement boundary has been checked throughout the Site, and no encroachment issues were identified. Summary information and data related to the performance of various projects and monitoring elements can be found in the tables and figures in the report appendices. All raw data supporting the tables and figures in the appendices are available upon request. Double Rock Mitigation Site Page 3‐1 Monitoring Year 1 Annual Report Section 3: REFERENCES Applied Climate Information System (ACIS). 2023. AgACIS for Alexander County: Taylorsville 3.4 S SE & TAYLORSVILLE, NC. https://agacis.rcc‐acis.org/?fips=37003. Doll, B.A., Grabow, G.L., Hall, K.A., Halley, J., Harman, W.A., Jennings, G.D., and Wise, D.E. 2003. Stream Restoration A Natural Channel Design Handbook. Harrelson, C.C., Rawlins, C.L., Potyondy, J.P. 1994. Stream Channel Reference Sites: An Illustrated Guide to Field Technique. Gen. Tech. Rep. RM‐245. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 61 p. Lee, Michael T., Peet, Robert K., Steven D., Wentworth, Thomas 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‐ 2.pdf North Carolina Division of Mitigation Services. North Carolina Division of Water Resources (NCDWR). 2015. Surface Water Classifications. http://portal.ncdenr.org/web/wq/ps/csu/classifications. NCDWR. 2010 Catawba River Basin Restoration Priorities (RBRP), accessed at: https://deq.nc.gov/about/divisions/water‐resources/water‐planning/basinplanning/river‐basin‐ plans/catawba#2010‐catawba‐basin‐plan North Carolina Department of Environmental Quality (NCDEQ) Upper Catawba River Basin Plan 2009 (Amended July 2018). https://files.nc.gov/ncdeq/Mitigation%20Services/Watershed_Planning/Catawba_River_Basin/2018 _Upper_Catawba_RBRP.pdf North Carolina Geological Survey (NCGS). 1985. Geologic map of North Carolina 1:500,000 scale. Compiled by Philip M. Brown et al. Raleigh, NC, NCGS. North Carolina Interagency Review Team (NCIRT). 2016. Wilmington District Stream and Wetland Compensatory Mitigation Update. Accessed at: https://saw‐ reg.usace.army.mil/PN/2016/Wilmington‐District‐Mitigation‐Update.pdf Rosgen, D. L. 1994. A classification of natural rivers. Catena 22:169‐199. Rosgen, D.L. 1996. Applied River Morphology. Pagosa Springs, CO: Wildland Hydrology Books. United States Army Corps of Engineers (USACE). 2003. Stream Mitigation Guidelines. USACE, NCDENR‐ DWQ, USEPA, NCWRC. USACE. 2008. Regulatory Guidance Letter No. 08‐03: Minimum Monitoring Requirements for Compensatory Mitigation Projects Involving the Restoration, Establishment, and/or Enhancement of Aquatic Resources. Retrieved from https://www.usace.army.mil/missions/civil‐works/regulatory‐ program‐and‐permits/guidanceletters/ Wildlands Engineering, Inc. (Wildlands). 2023. Wildlands Catawba 01 Umbrella Mitigation Bank Double Rock Mitigation Site: As‐Built & Baseline Monitoring Report. Charlotte, NC. Wildlands. 2022. Wildlands Catawba 01 Umbrella Mitigation Bank Double Rock Mitigation Site: Final Mitigation Plan. Charlotte, NC. Wildlands. 2022. Wildlands Catawba Umbrella Mitigation Banking Instrument. Wildlands Holding VI, LLC., Charlotte, NC. FIGURES Figure 1 - Current Condition Plan View (Key) Catawba 01 Umbrella Mitigation Bank Double Rock Mitigation Site Monitoring Year 1 - 2023 2022 Aerial Photography Alexander County, NC [[[[ [ [ [ [ [ [ [ [ [ [ [ [ [ [[ [ !P !P !P !P !P GFGFGFGF GF GF GFGF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF GF !A !A !A !A !A St i k e l e a t h e r R d E l k S h o a l s C r e e k Stikelea t h e r T r i b M a t h e s o n T r i b R a n d e l l T r i b Matheson Trib A Matheson Trib B Reach 1A Reach 2 Reach 1B Reach 1DReach 1C Reach 1B Reach 1A Elk Shoals Creek Figure 1a Figure 1b Figure 1c 99 0 9 9 4 9 9 8 10 0 2 1 0 0 6 1010 986 982 978 974 1014 1018 1022 10 2 6 10 3 4 1 0 3 8 104 2 1 0 4 6 9 7 0 9 6 6 105 0 1 0 5 4 1058 1062 1066 1070 10 7 4 1078 1082 1030 9 5 8 1086 9 6 2 1022 96 2 1002 103 0 97 8 97 4 9 9 0 1014 10 3 0 9 6 2 1006 10 3 4 1 0 3 8 1 0 4 2 97 0 9 8 6 9 5 8 9 8 2 998 10 4 6 10 1 8 1026 994 1010 96 6 958 ¹0 200 400 Feet Sheet Boundary Conservation Easement Project Parcels Internal Crossings Existing Wetlands HENA Population Boundary HENA 30 ft Buffer Stream Restoration Stream Enhancement II Stream Preservation Stormwater BMP No Credit Top of Bank (TOB) [[Fenceline Topographic Contours (2') Cross Sections (XS) GF Photo Points (PP) GF HENA Photo Points (HP) !A Crest Gage (CG) !A Barotroll !P Reach Break Vegetation Plot Conditions - MY1 Permanent (VP) & Mobile Plots (MP) Criteria Met Criteria Not Met2022 Aerial Photography GF GF GF GF GF GF GF GF GF GF GF GF GF GFGF GFGF GF GF !A !A !P !P !P !P !P HP1HP2 HP3HP4 HP5 HP6 PP1 PP2 PP3 PP4 PP5 PP6 PP7 PP8 PP9PP19 PP18 PP20 CG1 CG4 XS 1 XS 2 X S 3 XS 4 XS5 XS 6 MP2 MP1 VP 1 VP4 VP5 VP 3 PP22 XS 1 0 309+ 7 5 309+00 308+0 0 307+ 0 0 30 6 + 0 0 305 + 0 0 304+00 303+0 0 302+00 4 0 9 + 1 8 40 8 + 0 0 1 2 0 + 0 0 119+ 0 0 1 1 8 + 0 0 117 + 0 0 1 1 6 + 0 0 115+00 113 + 0 0 112 + 0 0 1 1 1 + 0 0 1 0 8 + 0 0 1 0 7 + 0 0 106 + 0 0 105+00 10 4 + 0 0 103+00 1 0 2 + 0 0 10 1 + 0 0 10 0 + 0 0 Elk S h o a l s C r e e k Stikeleat h e r T r i b Reach 1A Reach 2 Wetland C Wetland D Wetland E Reach 1B Reach 1DReach 1C Reach 1B Reach 1A Elk Shoals Creek 99 0 9 9 4 986 998 982 1002 978 1006 1010 974 10 1 4 1018 10 2 2 10 2 6 10 3 0 10 3 4 970 10 3 8 1042 1046 Figure 1a - Current Condition Plan View Catawba 01 Umbrella Mitigation Bank Double Rock Mitigation Site Monitoring Year 1 - 2023 2022 Aerial Photography ¹ Alexander County, NC 0 100 200 Feet Conservation Easement Project Parcels Internal Crossings Existing Wetlands HENA Population Boundary HENA 30 ft Buffer Structures Stream Restoration Stream Enhancement II Stream Preservation No Credit Top of Bank (TOB) [Fenceline Topographic Contours (2') Cross Sections (XS) GF Photo Points (PP) GF HENA Photos (HP) !A Crest Gage (CG) !P Reach Break Vegetation Plot Conditions - MY1 Permanent (VP) & Mobile Plots (MP) Criteria Met Criteria Not Met [[[[[[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [[[ [ GF GF GF GFGF GF GF!A !A !A Barotroll PP10 PP11 PP12 PP16 PP15 PP14 PP13 CG2 CG3 XS7 X S 8 XS9 V P 2 VP6 VP7 2 1 3 + 0 0 212 + 0 0 21 1 + 0 0 2 1 0 + 0 0 209 + 0 0 2 0 8 + 0 0 207+ 0 0 2 0 6 + 0 0 205 + 0 0 2 0 4 + 0 0 20 3 + 0 0 2 0 2 + 0 0 201+0 0 20 0 + 0 0 213+39 12 9 + 0 0 1 2 8 + 0 0 1 2 6 + 0 0 125 + 0 0 1 2 4 + 0 0 123+ 0 0 1 2 2 + 0 0 121+00 1 2 0 + 0 0 129+ 6 3 Elk Sho a l s C r e e k Ra n d e l l T r i b Wetland I Wetland B Wetland A E l k S h o a l s C r e e k 9 7 8 9 8 2 9 7 4 98 6 99 0 99 4 9 9 8 9 7 0 9 6 6 1 0 0 2 1 0 0 6 1010 1 0 1 4 1018 102 2 10 2 6 1034 1038 1042 1046 1030 96 2 97 8 9 6 2 9 6 6 99 8 1010 97 4 10 2 2 98 6 10 2 6 9 7 0 99 4 10 1 4 10 0 2 1006 9 8 2 990 10 1 8 1030 Figure 1b - Current Condition Plan View Catawba 01 Umbrella Mitigation Bank Double Rock Mitigation Site Monitoring Year 1 - 2023 Alexander County, NC 0 100 200 Feet 2022 Aerial Photography ¹ Conservation Easement Project Parcels Internal Crossings Existing Wetlands Structures Stream Restoration No Credit Top of Bank (TOB) [Fenceline Topographic Contours (2') Cross Sections (XS) GF Photo Points (PP) !A Crest Gage (CG) !A Barotroll !P Reach Break Vegetation Plot Conditions - MY1 Permanent (VP) & Mobile Plots (MP) Criteria Met GF GF GF GF GF GF GF GF GF GFGF GFGF GF GF GFGF GF GF GF !A !A !P !P !P !P !P HP1HP2 HP3HP4 HP5 HP6 HP7HP8 HP9 HP10 HP11 St i k e l e a t h e r R d PP3 PP4 PP5 PP6 PP19 PP18 PP17 PP20 CG1 CG4 XS 1 XS 2 MP1 VP 1 PP21 VP 3 XS 1 0 461+59 461+ 0 0 460 + 0 0 47 0 + 8 3 47 0 + 0 0 309+ 7 5 309+00 308+0 0 307 + 0 0 30 6 + 0 0 305 + 0 0 304+00 303+0 0 302+00 301 + 0 0 300+00 4 0 9 + 1 8 40 8 + 0 0 40 7 + 0 0 40 6 + 0 0 4 0 5 + 0 0 4 0 4 + 0 0 4 0 3 + 0 0 4 0 2 + 0 0 4 0 0 + 0 0 1 0 8 + 0 0 1 0 7 + 0 0 106 + 0 0 105+00 10 4 + 0 0 103+00 St i k e l e a t h e r R d Elk S h o a l s C r e e k Stikeleat h e r T r i b M a t h e s o n T r i b Wetland F Wetland G Wetland H Reach 1B Reach 1DReach 1C Reach 1B Reach 1A Matheson Trib B Matheson Trib A 99 8 9 9 4 99 0 10 3 0 10 2 6 10 3 4 10 3 8 1022 10 4 2 1 0 5 4 1 0 4 6 1 0 5 0 1018 1 0 1 4 1010 10 5 8 10 6 2 986 1006 10 0 2 10 6 6 9 8 2 10 7 0 10 7 4 1 0 7 8 108 2 97 8 108 6 Figure 1c - Current Condition Plan View Catawba 01 Umbrella Mitigation Bank Double Rock Mitigation Site Monitoring Year 1 - 2023 Alexander County, NC 0 100 200 Feet 2022 Aerial Photography ¹ Conservation Easement Project Parcels Internal Crossings Existing Wetlands HENA Population Boundary HENA 30 ft Buffer Structures Stream Restoration Stream Enhancement II Stream Preservation Stormwater BMP No Credit Top of Bank (TOB) [Fenceline Topographic Contours (2') Cross Sections (XS) GF Photo Points (PP) GF HENA Photos (HP) !A Crest Gage (CG) !P Reach Break Vegetation Plot Conditions - MY1 Permanent (VP) & Mobile Plots (MP) Criteria Met Criteria Not Met APPENDIX A. Visual Assessment Data Table 4a. Visual Stream Morphology Stability Assessment Table Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Elk Shoals Creek Reach 1A Last assessed on 12/5/23 Metric Number Stable, Performing as Intended Total Number in As‐built Amount of Unstable Footage % Stable, Performing as Intended 691 1,382 Surface Scour/ Bare Bank Bank lacking vegetative cover resulting simply from poor growth and/or surface scour.0 100% Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical ‐ rotational, slumping, calving, or collapse.0 100% 0 100% Grade Control Grade control structures exhibiting maintenance of grade across the sill. 7 7 100% Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 7 7 100% Elk Shoals Creek Reach 2 Last assessed on 12/5/23 Metric Number Stable, Performing as Intended Total Number in As‐built Amount of Unstable Footage % Stable, Performing as Intended 1,998 3,996 Surface Scour/ Bare Bank Bank lacking vegetative cover resulting simply from poor growth and/or surface scour.0 100% Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical ‐ rotational, slumping, calving, or collapse.0 100% 0 100% Grade Control Grade control structures exhibiting maintenance of grade across the sill. 15 15 100% Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 15 15 100% Structure Assessed Stream Length Assessed Bank Length Bank Totals: Structure Major Channel Category Major Channel Category Assessed Stream Length Assessed Bank Length Bank Totals: Table 4b. Visual Stream Morphology Stability Assessment Table Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Stikeleather Tributary Reach 1A Last assessed on 12/5/23 Metric Number Stable, Performing as Intended Total Number in As‐built Amount of Unstable Footage % Stable, Performing as Intended 521 1,042 Surface Scour/ Bare Bank Bank lacking vegetative cover resulting simply from poor growth and/or surface scour.0 100% Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical ‐ rotational, slumping, calving, or collapse.0 100% 0 100% Grade Control Grade control structures exhibiting maintenance of grade across the sill. 13 13 100% Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 12 11 100% Randell Tributary Last assessed on 12/5/23 Metric Number Stable, Performing as Intended Total Number in As‐built Amount of Unstable Footage % Stable, Performing as Intended 1,027 2,054 Surface Scour/ Bare Bank Bank lacking vegetative cover resulting simply from poor growth and/or surface scour.0 100% Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical ‐ rotational, slumping, calving, or collapse.0 100% 0 100% Grade Control Grade control structures exhibiting maintenance of grade across the sill. 6 6 100% Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 8 8 100% Totals: Structure Assessed Stream Length Assessed Bank Length Bank Major Channel Category Major Channel Category Assessed Stream Length Assessed Bank Length Bank Totals: Structure Table 4c. Visual Stream Morphology Stability Assessment Table Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Matheson Tributary Last assessed on 12/5/23 Metric Number Stable, Performing as Intended Total Number in As‐built Amount of Unstable Footage % Stable, Performing as Intended 39 78 Surface Scour/ Bare Bank Bank lacking vegetative cover resulting simply from poor growth and/or surface scour.0 100% Toe Erosion Bank toe eroding to the extent that bank failure appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 100% Bank Failure Fluvial and geotechnical ‐ rotational, slumping, calving, or collapse.0 100% 0 100% Grade Control Grade control structures exhibiting maintenance of grade across the sill. 2 2 100% Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. N/A N/A N/A Structure Major Channel Category Assessed Stream Length Assessed Bank Length Bank Totals: Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Last assessed on: 12/5/2023 Planted Acreage 11.10 Vegetation Category Definitions Mapping Threshold (ac) Combined Acreage % of Planted Acreage Bare Areas Very limited cover of both woody and herbaceous material.0.10 0 0% Low Stem Density Areas Woody stem densities clearly below target levels based on current MY stem count criteria.0.10 0 0% 00% Areas of Poor Growth Rates Planted areas where average height is not meeting current MY Performance Standard.0.10 0 0% 0.0 0% Easement Acreage 19.33 Vegetation Category Definitions Mapping Threshold (ac) Combined Acreage % of Easement Acreage Invasive Areas of Concern Invasives may occur outside of planted areas and within the easement and will therefore be calculated against the total easement acreage. Include species with the potential to directly outcompete native, young, woody stems in the short‐term or community structure for existing communities. Invasive species included in summation above should be identified in report summary. 0.10 0 0% Easement Encroachment Areas Encroachment may be point, line, or polygon. Encroachment to be mapped consists of any violation of restrictions specified in the conservation easement. Common encroachments are mowing, cattle access, vehicular access. Encroachment has no threshold value as will need to be addressed regardless of impact area. none Table 5. Vegetation Condition Assessment Table Total Cumulative Total N/A STREAM PHOTOGRAPHS Photo Point 1 – Elk Shoals Creek R1A upstream (10/25/2023) Photo Point 1 – Elk Shoals Creek R1A downstream (10/25/2023) Photo Point 2 – Elk Shoals Creek R1A upstream (10/25/2023) Photo Point 2 – Elk Shoals Creek R1A downstream (10/25/2023) Photo Point 3 – Elk Shoals Creek R1A upstream (10/25/2023) Photo Point 3 – Elk Shoals Creek R1A downstream (10/25/2023) Photo Point 4 – Elk Shoals Creek R1A upstream (10/25/2023) Photo Point 4 – Elk Shoals Creek R1A downstream (10/25/2023) Photo Point 5 – Elk Shoals Creek R1B upstream (10/25/2023) Photo Point 5 – Elk Shoals Creek R1B downstream (10/25/2023) Photo Point 6 – Elk Shoals Creek R2 upstream (10/25/2023) Photo Point 6 – Elk Shoals Creek R2 downstream (10/25/2023) Photo Point 7 – Elk Shoals Creek R2 upstream (10/25/2023) Photo Point 7 – Elk Shoals Creek R2 downstream (10/25/2023) Photo Point 8 – Elk Shoals Creek R2 upstream (10/25/2023) Photo Point 8 – Elk Shoals Creek R2 downstream (10/25/2023) Photo Point 9 – Elk Shoals Creek R2 upstream (10/25/2023) Photo Point 9 – Elk Shoals Creek R2 downstream (10/25/2023) Photo Point 10 – Elk Shoals Creek R2 upstream (10/25/2023) Photo Point 10 – Elk Shoals Creek R2 downstream (10/25/2023) Photo Point 11 – Elk Shoals Creek R2 upstream (10/25/2023) Photo Point 11 – Elk Shoals Creek R2 downstream (10/25/2023) Photo Point 12 – Elk Shoals R2 upstream (11/1/2023) Photo Point 12 – Elk Shoals R2 downstream (11/1/2023) Photo Point 12 – Randell Trib upstream (10/25/2023) Photo Point 13 – Randell Trib upstream (10/25/2023) Photo Point 13 – Randell Trib downstream (10/25/2023) Photo Point 14 – Randell Trib upstream (10/25/2023) Photo Point 14 – Randell Trib downstream (10/25/2023) Photo Point 15 – Randell Trib upstream (10/25/2023) Photo Point 15 – Randell Trib downstream (10/25/2023) Photo Point 16 – Randell Trib upstream (10/25/2023) Photo Point 16 – Randell Trib downstream (10/25/2023) Photo Point 17 – Stikeleather Trib R1A upstream (10/25/2023) Photo Point 17 – Stikeleather Trib R1A downstream (10/25/2023) Photo Point 18 – Stikeleather Trib R1A upstream (10/25/2023) Photo Point 18 – Stikeleather Trib R1A downstream (10/25/2023) Photo Point 19 – Stikeleather Trib R1B upstream (10/25/2023) Photo Point 19 – Stikeleather Trib R1B downstream (10/25/2023) Photo Point 20 – Matheson Trib upstream (10/25/2023) Photo Point 20 – Matheson Trib downstream (10/25/2023) Photo Point 21 – Matheson Trib A upstream (10/25/2023) Photo Point 21 – Matheson Trib A downstream (10/25/2023) Photo Point 22 – Well House South (10/25/2023) Photo Point 22 – Well House Easement Corners West (10/25/2023) VEGETATION PLOT PHOTOGRAPHS Permanent Vegetation Plot 1 (10/25/2023) Permanent Vegetation Plot 2 (10/25/2023) Permanent Vegetation Plot 3 (10/25/2023) Permanent Vegetation Plot 4 (10/25/2023) Permanent Vegetation Plot 5 (10/25/2023) Permanent Vegetation Plot 6 (10/25/2023) Permanent Vegetation Plot 7 (10/25/2023) Mobile Vegetation Plot 1 (10/25/2023) Mobile Vegetation Plot 2 (11/01/2023) HEXASTYLIS NANIFLORA (HENA) PHOTOGRAPHS HENA Photo Point 1 - North (10/25/2023) HENA Photo Point 1 – East (10/25/2023) HENA Photo Point 1 – South (10/25/2023) HENA Photo Point 1 – West (10/25/2023) HENA Photo Point 2 - North (10/25/2023) HENA Photo Point 2 – East (10/25/2023) HENA Photo Point 2 – South (10/25/2023) HENA Photo Point 2 – West (10/25/2023) HENA Photo Point 3 - North (10/25/2023) HENA Photo Point 3 – East (10/25/2023) HENA Photo Point 3 – South (10/25/2023) HENA Photo Point 3 – West (10/25/2023) HENA Photo Point 4 - North (10/25/2023) HENA Photo Point 4 – East (10/25/2023) HENA Photo Point 4 – South (10/25/2023) HENA Photo Point 4 – West (10/25/2023) HENA Photo Point 5 - North (11/01/2023) HENA Photo Point 5 – East (11/01/2023) HENA Photo Point 5 – South (11/01/2023) HENA Photo Point 5 – West (10/25/2023) HENA Photo Point 6 - North (10/25/2023) HENA Photo Point 6 – East (10/25/2023) HENA Photo Point 6 – South (10/25/2023) HENA Photo Point 6 – West (10/25/2023) HENA Photo Point 7 - North (10/25/2023) HENA Photo Point 7 – East (10/25/2023) HENA Photo Point 7 – South (10/25/2023) HENA Photo Point 7 – West (10/25/2023) HENA Photo Point 8 - North (10/25/2023) HENA Photo Point 8 – East (10/25/2023) HENA Photo Point 8 – South (10/25/2023) HENA Photo Point 8 – West (10/25/2023) HENA Photo Point 9 - North (11/01/2023) HENA Photo Point 9 – East (11/01/2023) HENA Photo Point 9 – South (11/01/2023) HENA Photo Point 9 – West (11/01/2023) HENA Photo Point 10 - North (12/05/2023) HENA Photo Point 10 – East (12/05/2023) HENA Photo Point 10 – South (12/05/2023) HENA Photo Point 10 – West (12/05/2023) HENA Photo Point 11 - North (11/01/2023) HENA Photo Point 11 – East (11/01/2023) HENA Photo Point 11 – South (11/01/2023) HENA Photo Point 11 – West (10/25/2023) APPENDIX B. Vegetation Plot Data Double Rock Mitigation Site USACE No. SAW‐2020‐01532 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 PnoLS P‐all T PnoLS P‐all T Acer negundo Boxelder maple Tree 25 25 Acer rubrum Red maple Tree 75 50 50 175 Betula nigra River Birch, Red Birch Tree 44422233355522211144421212121 21 21 Carpinus caroliniana Ironwood Shrub Tree 111112 111 334444 Celtis laevigata Southern Hackberry, Sugarberry Shrub Tree 1 1 1 111111 333333 Cornus florida Flowering Dogwood Shrub Tree 111 111444 Diospyros virginiana American Persimmon, Possumwood Tree 113333 222222 881012 12 12 Lindera benzoin Northern Spicebush Shrub Tree 111 111222 Liriodendron tulipifera Tulip poplar Tree 1 1 2 Platanus occidentalis Sycamore, Plane‐tree Tree 22233311144433344411118181820 20 20 Quercus michauxii Basket Oak, Swamp Chestnut Oak Tree 1 1 1 111111333333 Quercus phellos Willow Oak Tree 222111 11111111122288813 13 13 Quercus rubra Norththern Red Oak Tree 1 1 1 111222333 Salix nigra Black Willow Tree 22 Ulmus rubra Slippery Elm, Red Elm Tree 111222333 22222211111111112 12 12 Viburnum prunifolium Black Haw, Nannyberry Shrub Tree 2 2 2 1 1 1 111444444 Xanthorhiza simplicissima Yellowroot, Brook‐feather Shrub 1 1 1 111555 12 12 39 17 17 94 7 7 58 10 10 10 13 13 13 14 14 66 11 11 11 84 84 291 106 106 106 778101012335333888991177713131713 13 13 486 486 1578 688 688 3804 283 283 2347 405 405 405 526 526 526 567 567 2671 445 445 445 486 486 1682 613 613 613 Color for Density Exceeds requirements by 10%PnoLS: Number of planted stems excluding live stakes Exceeds requirements, but by less than 10%P‐all: Number of planted stems including live stakes Fails to meet requirements, by less than 10%T: Total stems Fails to meet requirements by more than 10% Volunteer species included in total Permanent Vegetation Plot Annual Mean Permanent Plot 2 1 Permanent Plot 1 Permanent Plot 4 111 Permanent Plot 3 11 Species count Stems per ACRE 0.0247size (ACRES) Table 6a. Planted and Total Stem Counts Stem count size (ares) Current Permanent Vegetation Plot Data (MY1 2023) 0.0247 0.0247 0.0247 MY0 (2023) 7 0.17300.0247 0.0247 0.0247 MY1 (2023) 7 0.1730 Permanent Plot 5 Permanent Plot 6 Permanent Plot 7 1 Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Scientific Name Common Name Species Type MP1 MP2 MY1 (2023) MY0 (2023) MY1 (2023) MY0 (2023) PnoLS PnoLS PnoLS PnoLS PnoLS PnoLS Acer negundo Boxelder maple Tree Acer rubrum Red maple Tree Betula nigra River Birch, Red Birch Tree 3 2 56 26 27 Carpinus caroliniana Ironwood Shrub Tree 1 11 4 5 Celtis laevigata Southern Hackberry, Sugarberry Shrub Tree 2225 5 Cornus florida Flowering Dogwood Shrub Tree 2 1 6 Diospyros virginiana American Persimmon, Possumwood Tree 2 1 33 11 15 Lindera benzoin Northern Spicebush Shrub Tree 1122 4 Liriodendron tulipifera Tulip poplar Tree Platanus occidentalis Sycamore, Plane‐tree Tree 2 4 65 24 25 Quercus michauxii Basket Oak, Swamp Chestnut Oak Tree 1114 4 Quercus phellos Willow Oak Tree 3 2 55 13 18 Quercus rubra Norththern Red Oak Tree 2 2 5 Salix nigra Black Willow Tree 1 Ulmus rubra Slippery Elm, Red Elm Tree 2 2 43 15 15 Viburnum prunifolium Black Haw, Nannyberry Shrub Tree 1 11 5 5 Xanthorhiza simplicissima Yellowroot, Brook‐feather Shrub 2 1 7 16 14 29 35 113 141 1122 99 0.0247 0.0247 0.0494 0.0494 0.2224 0.2224 8 8 10 13 13 13 647 567 587 708 508 634 Color for Density Exceeds requirements by 10% PnoLS: Number of planted stems excluding live stakes Exceeds requirements, but by less than 10% P‐all: Number of planted stems including live stakes Fails to meet requirements, by less than 10% T: Total stems 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 Current Mobile Vegetation Plot (MP) Data (MY1 2023) Table 6b. Planted and Total Stem Counts Stem count size (ares) Species count size (ACRES) Table 7. Vegetation Plot Criteria Attainment Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Permanent Vegetation Plot MY3 Success Criteria Met (Y/N) 1 Y 2 Y 3 N 4 Y 5 Y 6 Y 7 Y Mobile Vegetation Plot MY3 Success Criteria Met (Y/N) 1 Y 2 Y Tract Mean (MY1 ‐ 2023) 100% 86% 89% APPENDIX C. Stream Geomorphology Data Bankfull Dimensions 29.2 x-section area (ft.sq.) 22.0 width (ft) 1.3 mean depth (ft) 3.4 max depth (ft) 23.7 wetted perimeter (ft) 1.2 hydraulic radius (ft) 16.6 width-depth ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 1 - Elk Shoals Creek R1A Monitoring Year 1 - 2023 View Downstream 977 978 979 980 981 982 10 20 30 40 50 60 El e v a t i o n ( f t ) Width (ft) 104+61 Pool MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull Dimensions 15.5 x-section area (ft.sq.) 16.1 width (ft) 1.0 mean depth (ft) 2.1 max depth (ft) 17.2 wetted perimeter (ft) 0.9 hydraulic radius (ft) 16.7 width-depth ratio 68.2 W flood prone area (ft) 4.2 entrenchment ratio 1.0 low bank height ratio Survey Date:10/2023 Field Crew:Wildlands Engineering View Downstream Cross-Section 2 - Elk Shoals Creek R1A Monitoring Year 1 - 2023 Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots 978 979 980 981 982 983 10 20 30 40 50 60 El e v a t i o n ( f t ) Width (ft) 104+96 Riffle MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 21.1 x-section area (ft.sq.) 19.2 width (ft) 1.1 mean depth (ft) 1.9 max depth (ft) 19.6 wetted perimeter (ft) 1.1 hydraulic radius (ft) 17.4 width-depth ratio 83.5 W flood prone area (ft) 4.4 entrenchment ratio 1.0 low bank height ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 3 - Elk Shoals Creek R2 Monitoring Year 1 - 2023 View Downstream 971 972 973 974 975 976 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Width (ft) 111+82 Riffle MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 66.5 x-section area (ft.sq.) 27.5 width (ft) 2.4 mean depth (ft) 4.6 max depth (ft) 29.6 wetted perimeter (ft) 2.2 hydraulic radius (ft) 11.4 width-depth ratio Survey Date:10/2023 Field Crew:Wildlands Engineering View Downstream Cross-Section 4 - Elk Shoals Creek R2 Monitoring Year 1 - 2023 Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots 968 970 972 974 10 20 30 40 50 60 70 80 90 El e v a t i o n ( f t ) Width (ft) 112+29 Pool MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull Dimensions 22.1 x-section area (ft.sq.) 19.5 width (ft) 1.1 mean depth (ft) 2.1 max depth (ft) 20.1 wetted perimeter (ft) 1.1 hydraulic radius (ft) 17.3 width-depth ratio 80.6 W flood prone area (ft) 4.1 entrenchment ratio 1.0 low bank height ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 5 - Elk Shoals Creek R2 Monitoring Year 1 - 2023 View Downstream 968 969 970 971 972 973 974 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Width (ft) 117+94 Riffle MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 48.6 x-section area (ft.sq.) 22.3 width (ft) 2.2 mean depth (ft) 4.0 max depth (ft) 24.4 wetted perimeter (ft) 2.0 hydraulic radius (ft) 10.3 width-depth ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 6 - Elk Shoals Creek R2 Monitoring Year 1 - 2023 View Downstream 965 966 967 968 969 970 971 972 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Width (ft) 118+53 Pool MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull Dimensions 16.8 x-section area (ft.sq.) 17.9 width (ft) 0.9 mean depth (ft) 1.8 max depth (ft) 18.4 wetted perimeter (ft) 0.9 hydraulic radius (ft) 19.2 width-depth ratio 80.8 W flood prone area (ft) 4.5 entrenchment ratio 1.0 low bank height ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 7 - Elk Shoals Creek R2 Monitoring Year 1 - 2023 View Downstream 965 966 967 968 969 970 971 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Width (ft) 122+16 Riffle MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 23.4 x-section area (ft.sq.) 20.1 width (ft) 1.2 mean depth (ft) 2.0 max depth (ft) 20.6 wetted perimeter (ft) 1.1 hydraulic radius (ft) 17.3 width-depth ratio 94.1 W flood prone area (ft) 4.7 entrenchment ratio 1.0 low bank height ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 8 - Randell Trib Monitoring Year 1 - 2023 View Downstream 966 967 968 969 970 971 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Width (ft) 207+11 Riffle MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 39.7 x-section area (ft.sq.) 21.1 width (ft) 1.9 mean depth (ft) 3.8 max depth (ft) 22.9 wetted perimeter (ft) 1.7 hydraulic radius (ft) 11.2 width-depth ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 9 - Randell Trib Monitoring Year 1 - 2023 View Downstream 963 964 965 966 967 968 969 970 10 20 30 40 50 60 70 80 90 El e v a t i o n ( f t ) Width (ft) 207+81 Pool MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull Dimensions 4.6 x-section area (ft.sq.) 9.0 width (ft) 0.5 mean depth (ft) 1.0 max depth (ft) 9.3 wetted perimeter (ft) 0.5 hydraulic radius (ft) 17.6 width-depth ratio 49.5 W flood prone area (ft) 5.5 entrenchment ratio 1.1 low bank height ratio Survey Date:10/2023 Field Crew:Wildlands Engineering Double Rock Mitigation Site USACE No. SAW-2020-01532 Cross-Section Plots Cross-Section 10 - Stikeleather Trib Monitoring Year 1 - 2023 View Downstream 991 992 993 994 0 10 20 30 40 50 El e v a t i o n ( f t ) Width (ft) 303+32 Riffle MY0 (05/2023)MY1 (10/2023)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Table 8a. Baseline Stream Data Summary Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Parameter Riffle Only Min Max n Min Max n Min Max n Bankfull Width (ft) 1 1 1 Floodprone Width (ft) 1 33 74 2 1 Bankfull Mean Depth 1 1 1 Bankfull Max Depth 1 1 1 Bankfull Cross Sectional Area (ft2)111 Width/Depth Ratio 1 1 1 Entrenchment Ratio 1 2.2 5.0 2 1 Bank Height Ratio 1 1.0 1.1 2 1 Max part size (mm) mobilized at bankfull 2 Rosgen Classification Bankfull Discharge (cfs) 1 1 1 Sinuosity Water Surface Slope (ft/ft)2 Other Parameter Riffle Only Min Max n Min Max n Min Max n Bankfull Width (ft) 1 1 17.4 19.9 3 Floodprone Width (ft) 1 40 90 2 81 84 3 Bankfull Mean Depth 1 1 1.0 1.1 3 Bankfull Max Depth 1 1 1.8 2.0 3 Bankfull Cross Sectional Area (ft2)1 1 18.0 22.1 3 Width/Depth Ratio 1 1 16.0 17.9 3 Entrenchment Ratio 1 2.2 5.0 2 4.0 4.7 3 Bank Height Ratio 1 1.0 1.1 2 3 Max part size (mm) mobilized at bankfull 2 Rosgen Classification Bankfull Discharge (cfs) 1 1 58.8 76.4 3 Sinuosity Water Surface Slope (ft/ft)2 Other 52.9 C4 1.23 0.0076 ‐‐‐ ‐‐‐ 21.3 1.0 1.2 15.2 0.0100 C 52.9 1.6 15.0 16.7 ‐‐‐ 1.0 13.8 1.3 ‐‐‐ 65.0 1.25 0.0131 90/168 C4 0.0198 1.15 1.23 ‐‐‐ ‐‐‐ ‐‐‐ 14.3 18 1.0 1.7 14.7 1.9 0.0077 Incised C4 C 0.0082 1.15 1.20 ‐‐‐ 17.1 4.8 1.7 1.0 42/98 0.9 2.4 17.9 ‐‐‐ Elk Shoals Creek Reach 2 17.5 84 18.0 MONITORING BASELINE (MY0) 14.8 15.5 14.1 1.0 DESIGN 15.8 75.0 PRE‐EXISTING CONDITIONS ‐‐‐ F4 2.5 Elk Shoals Creek Reach 1A 51.9 4.3 1.5 68 Table 8b. Baseline Stream Data Summary Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Parameter Riffle Only Min Max n Min Max n Min Max n Bankfull Width (ft) 6.1 6.2 2 1 1 Floodprone Width (ft) 7 14 2 9 39 2 1 Bankfull Mean Depth 1 1 1 Bankfull Max Depth 0.8 0.9 2 1 1 Bankfull Cross Sectional Area (ft2)111 Width/Depth Ratio 9.0 9.3 2 1 1 Entrenchment Ratio 1.1 2.3 2 1.2 5.0 2 1 Bank Height Ratio 1.1 3.6 2 1.0 1.1 2 1 Max part size (mm) mobilized at bankfull 2 Rosgen Classification Bankfull Discharge (cfs) 1 1 1 Sinuosity Water Surface Slope (ft/ft)2 Other Parameter Riffle Only Min Max n Min Max n Min Max n Bankfull Width (ft) 1 1 1 Floodprone Width (ft) 1 42 96 2 1 Bankfull Mean Depth 1 1 1 Bankfull Max Depth 1 1 1 Bankfull Cross Sectional Area (ft2)1 1 1 Width/Depth Ratio 1 1 1 Entrenchment Ratio 1 2.2 5.0 2 1 Bank Height Ratio 1 1.0 1.1 2 1 Max part size (mm) mobilized at bankfull 2 Rosgen Classification Bankfull Discharge (cfs) 1 1 1 Sinuosity Water Surface Slope (ft/ft)2 Other C4 1.27 0.0072 ‐‐‐ 79.9 84.2 0.0067 ‐‐‐ ‐‐‐ 90.0 B4 1.07 0.0228 ‐‐‐ 15.214.0 14.0 1.15 1.07 24.6 16.4 4.7 1.0 49 0.5 0.8 4.0 18.9 5.7 1.60 22.6 1.6 1.27 ‐‐‐21/61 ‐‐‐ Incised E4 C 1.2 2.0 0.0297 ‐‐‐ ‐‐‐ Randell Tributary 19.2 20.1 1.2 9545 1.0 0.0062 0.0228 ‐‐‐63/131 ‐‐‐ G4 B 1.8 15.2 0.7 0.5 4.1 3.6 0.7 16.9 PRE‐EXISTING CONDITIONS MONITORING BASELINE (MY0) Stikeleather Tributary Reach 1A 7.8 8.7 DESIGN 2.4 9.6 3.0 1.7 16.3 24.2 Table 9. Cross‐Section Morphology Monitoring Summary Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 Bankfull Elevation (ft) ‐ Based on AB‐Bankfull1 Area ‐‐ ‐‐980.33 980.34 973.86 973.92 ‐‐ ‐‐ Bank Height Ratio ‐ Based on AB Bankfull1 Area ‐‐ ‐‐1.00 1.01 1.00 1.00 ‐‐ ‐‐ Thalweg Elevation 977.41 977.23 978.74 978.28 971.94 972.03 968.85 968.85 LTOB2 Elevation 980.66 980.67 980.33 980.37 973.86 973.93 973.41 973.44 LTOB2 Max Depth (ft)3.2 3.4 1.6 2.1 1.9 1.9 4.6 4.6 LTOB2 Cross Sectional Area (ft2)30.5 29.2 15.0 15.5 20.9 21.1 65.7 66.5 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 Bankfull Elevation (ft) ‐ Based on AB‐Bankfull1 Area 971.03 971.05 ‐‐ ‐‐967.90 968.01 968.74 968.89 Bank Height Ratio ‐ Based on AB Bankfull1 Area 1.00 1.00 ‐‐ ‐‐1.00 0.96 1.00 0.97 Thalweg Elevation 969.08 968.94 966.00 966.18 966.08 966.12 966.79 966.88 LTOB2 Elevation 971.03 971.05 970.21 970.21 967.90 967.94 968.74 968.83 LTOB2 Max Depth (ft)2.0 2.1 4.2 4.0 1.8 1.8 2.0 2.0 LTOB2 Cross Sectional Area (ft2)22.1 22.1 50.3 48.6 18.0 16.8 24.6 23.4 MY0 MY1 MY2 MY3 MY5 MY7 MY0 MY1 MY2 MY3 MY5 MY7 Bankfull Elevation (ft) ‐ Based on AB‐Bankfull1 Area ‐‐ ‐‐992.63 992.60 Bank Height Ratio ‐ Based on AB Bankfull1 Area ‐‐ ‐‐1.00 1.07 Thalweg Elevation 964.19 964.17 991.79 991.68 LTOB2 Elevation 967.84 967.94 992.63 992.67 LTOB2 Max Depth (ft)3.6 3.8 0.8 1.0 LTOB2 Cross Sectional Area (ft2)39.1 39.7 4.0 4.6 1Bank Height Ratio (BHR) takes the as‐built bankfull area as the basis for adjusting each subsequent years bankfull elevation. 2Low top of bank (LTOB) is based on the current year's survey. LTOB area and max depth are based on the LTOB elevation for the current year. Cross‐Section 3 (Riffle) Cross‐Section 7 (Riffle) Randell Tributary Stikeleather Tributary Reach 1A Elk Shoals Creek Reach 1A Elk Shoals Creek Reach 2 Randell Tributary Cross‐Section 4 (Pool)Cross‐Section 1 (Pool) Cross‐Section 2 (Riffle) Cross‐Section 9 (Pool) Cross‐Section 10 (Riffle) Elk Shoals Creek Reach 2 Cross‐Section 8 (Riffle)Cross‐Section 6 (Pool)Cross‐Section 5 (Riffle) APPENDIX D. Hydrology Data Table 10. Bankfull Events Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 MY1 (2023) MY2 (2024) MY3 (2025) MY4 (2026) MY5 (2027) MY6 (2028) MY7 (2029) Photographic Evidence ‐ 10/25/2023 8/28/2023 8/28/2023 N/A Table 11. Rainfall Summary Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 MY1 (2023) MY2 (2024) MY3 (2025) MY4 (2026) MY5 (2027) MY6 (2028) MY7 (2029) 49.52 46.64 60.27 Yes Annual precipitation Station: Taylorsville 3.4 S SE, 3.4mi from the Site, https://agacis.rcc‐acis.org/?fips=37003. Reach WETS Station: TAYLORSVILLE, 5.8mi from the Site, https://agacis.rcc‐acis.org/?fips=37003. Elk Shoals Creek R1A (CG1) Elk Shoals Creek R2 (CG2) Stikeleather Trib R1A (CG4) WETS Percentiles are recalculated each year based on the most recent 30‐yr time period. Randell Trib (CG3) WETS 30th Percentile Annual Precip Total Normal WETS 70th Percentile Recorded Bankfull Event Plot Monitoring Year 1 ‐ 2023 30th and 70th percentile precipitation data derived from the WETS data for the TAYLORSVILLE, NC weather station, 5.8mi from the Site (ACIS, 2023). A localized change in the bed elevation at XS2 was observed during MY1 survey resulting in a decrease of the thalweg elevation by 0.46 ft. Annual precipitation Station: Taylorsville 3.4 S SE, 3.4mi from the Site (ACIS, 2023). Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Apr May Jun Jul Aug Sep Oct Nov Dec 0 1 2 3 4 5 6 7 8 9 10 978.0 979.0 980.0 981.0 982.0 Pr e c i p i t a t i o n (i n ) El e v a t i o n (f t ) Monitoring Year 1 ‐2023 Daily Precipitation Water Level Thalweg Bankfull 30‐Day Rolling Precip Total 30th & 70th Percentile Double Rock: Crest Gage #1 (Elk Shoals Creek R1A) (XS2) Recorded Bankfull Event Plot Monitoring Year 1 ‐ 2023 Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Annual precipitation Station: Taylorsville 3.4 S SE, 3.4mi from the Site (ACIS, 2023). 30th and 70th percentile precipitation data derived from the WETS data for the TAYLORSVILLE, NC weather station, 5.8mi from the Site (ACIS, 2023). Apr May Jun Jul Aug Sep Oct Nov Dec 0 1 2 3 4 5 6 7 8 9 10 965.0 966.0 967.0 968.0 969.0 970.0 Pr e c i p i t a t i o n (i n ) El e v a t i o n (f t ) Monitoring Year 1 ‐2023 Daily Precipitation Water Level Thalweg Bankfull 30‐Day Rolling Precip Total 30th & 70th Percentile Double Rock: Crest Gage #2 (Elk Shoals Creek R2) (XS7) Recorded Bankfull Event Plot Monitoring Year 1 ‐ 2023 Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Annual precipitation Station: Taylorsville 3.4 S SE, 3.4mi from the Site (ACIS, 2023). 30th and 70th percentile precipitation data derived from the WETS data for the TAYLORSVILLE, NC weather station, 5.8mi from the Site (ACIS, 2023). Apr May Jun Jul Aug Sep Oct Nov Dec 0 1 2 3 4 5 6 7 8 9 10 966.0 967.0 968.0 969.0 970.0 971.0 Pr e c i p i t a t i o n (i n ) El e v a t i o n (f t ) Monitoring Year 1 ‐2023 Daily Precipitation Water Level Thalweg Bankfull 30‐Day Rolling Precip Total 30th & 70th Percentile Double Rock: Crest Gage #3 (Randell Trib) (XS8) Recorded Bankfull Event Plot Monitoring Year 1 ‐ 2023 Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Annual precipitation Station: Taylorsville 3.4 S SE, 3.4mi from the Site (ACIS, 2023). 30th and 70th percentile precipitation data derived from the WETS data for the TAYLORSVILLE, NC weather station, 5.8mi from the Site (ACIS, 2023). Apr May Jun Jul Aug Sep Oct Nov Dec 0 1 2 3 4 5 6 7 8 9 10 991.0 992.0 993.0 994.0 Pr e c i p i t a t i o n (i n ) El e v a t i o n (f t ) Monitoring Year 1 ‐2023 Daily Precipitation Water Level Thalweg Bankfull 30‐Day Rolling Precip Total 30th & 70th Percentile Double Rock: Crest Gage #4 (Stikeleather Trib R1A) (XS10) Bankfull Documentation Monitoring Year 1 Elk Shoals Creek R1A, Crest Gage 1 – Upstream – Wrack Lines (10/25/23) Elk Shoals Creek R1A, Crest Gage 1 – Downstream – Wrack Lines (10/25/23) Elk Shoals Creek R1A, Crest Gage 1 – Right Bank – Wrack Lines (10/25/23) APPENDIX E. Project Timeline and Contact Info Table 12. Project Activity and Reporting History Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Data Collection Complete Task Completion or Deliverable Submission N/A September 2022 N/A July 2022 N/A April 2023 N/A March 2023 N/A March 2023 N/A April 2023 N/A June 2023 N/A June 2023 Vegetation Survey April 2023 Stream Survey May 2023 Invasive Treatment July 2023 Stream Survey October 2023 Vegetation Survey October 2023 Stream Survey Vegetation Survey Stream Survey Vegetation Survey April 2027 Stream Survey Vegetation Survey April 2029 Stream Survey Vegetation Survey 1 Seed and mulch is added as each section of construction is completed. Table 13. Project Contact Table Double Rock Mitigation Site USACE No. SAW‐2020‐01532 Monitoring Year 1 ‐ 2023 Designer Aaron Early, PE. Construction Contractor Planting Contractor Seeding Contractor Nursery Stock Supplier (Bare Roots) Nursery Stock Supplier (Live Stakes) Herbaceous Plugs Monitoring Performers Monitoring, POC Year 7 Monitoring Year 5 Monitoring Year 3 Monitoring July 2023 PO Box 1197 Year 2 Monitoring Year 1 Monitoring Baseline Monitoring Document (Year 0) Year 4 Monitoring (Reduced Year) Year 6 Monitoring (Reduced Year) Charlotte, NC 28203 February 2024 April 2025 April 2026 April 2028 April 2030 Fremont, NC 27830 Wildlands Engineering, Inc. 1430 S Mint St STE 104, Charlotte, NC 28203 704.332.7754 Wildlands Construction 1430 S Mint St STE 104, 704.332.7754 Bruton Natural Systems, Inc. Activity or Deliverable Umbrella Mitigation Bank Approved Mitigation Plan Approved Construction (Fencing and Easement Marking) Bare root and live stake plantings for reach/segments1 Construction (Grading) As‐Built Survey Temporary seed mix applied to entire project area1 Permanent seed mix applied to reach/segments1 704.332.7754 x110 Wildlands Construction Foggy Mountain Nursery Wetland Plants, Inc. Wildlands Engineering, Inc. Kristi Suggs Dykes and Sons Nursery and Greenhouse APPENDIX F. Additional Documentation Wildlands Engineering, Inc.  phone 704-332-7754  fax 704-332-3306  1430 S. Mint Street, # 104  Charlotte, NC 28203 February 12, 2024 U.S. Army Corps of Engineers Regulatory Division Wilmington District, Asheville Field Office 151 Patton Avenue, Suite 208 Asheville, NC 28801 Attention: Steve Kichefski RE: NCIRT Review Comments on the Wildlands Catawba 01 Umbrella Mitigation Bank – Double Rock Mitigation Site As-built & Baseline Monitoring Report Catawba River Basin - HUC 03050101 Alexander County, NC USACE Action ID No. SAW-2020-01532 Dear Mr. Kichefski: Wildlands Engineering, Inc. (Wildlands) has reviewed the IRT’s comments on the Wildlands Catawba 01 Umbrella Mitigation Bank, Double Rock Mitigation Site As-built & Baseline Monitoring Report that were received on September 27, 2023. The MY1 report has been updated where needed and is included with this submittal. The IRT’s comments (Erin Davis/Steve Kichefski, USACE) are listed below in bold. Wildlands’ responses to the comments are noted in italics. As-built/MY0 Report Comments: 1. Redline Drawing Sheets 2.3 and 2.5 show additional wetland and buffer planting areas within the project conservation easement. Please include coverage of these areas in the random plot sampling over the duration of the monitoring period. Wildlands’ response: Noted. Random plot sampling will be conducted using mobile vegetation plots within the additional wetland and buffer planting areas during the monitoring period. 2. With site planting being completed after the standard IRT deadline of March 15th, please closely monitor stem stress and mortality during the MY1 veg survey. Assessment of supplemental planting needs is encouraged early in an effort to avoid an extension of the monitoring period. Wildlands’ response: Despite the late planting on the Site, the average planted stem density is 513 with 8 out of the 9 plots meeting the interim success requirement of 320 stems per acre required at MY3 and are on track to the final success criteria required for MY7. Vegetation Plot (VP) 3 is the only plot that is not currently meeting the MY3 criteria with 283 planted stems per acre. No other areas of low stem density were documented across the Site, and supplemental planting is not currently needed. Wildlands will continue to closely monitor the stem vigor and survival within the planted easement area. IRT Site Visit August 16, 2023, Comments: 1. Please provide updates on the Randall Tributary and Elk Shoals Creek bank erosion repairs, including adjacent access/staging area veg cover, in the MY1 report. Wildlands Engineering, Inc.  phone 704-332-7754  fax 704-332-3306  1430 S. Mint Street, # 104  Charlotte, NC 28203 Wildlands’ response: The areas of bank erosion that were observed on Randell Tributary and Elk Shoals Creek have been repaired through the re-staking of matting and the addition of livestakes. The adjacent vegetation cover appears healthy and will continue to become established to help stabilize the banks and floodplain. All bank repairs on both Randell Tributary and Elk Shoals Creek appear successful and are no longer an issue. As requested, documentation of this response is included in Section 2.4 of the monitoring report. 2. In the MY1 report please include a status update of the presence of Murdannia keisak onsite and any completed or planned treatments. Wildlands’ response: During MY1, small areas of Asian spiderwort (Murdannia keisak) were treated in several riffles along Elk Shoals Creek and Randell Tributary. The spiderwort was not negatively impacting the flow of the stream and new growth will slowly be shaded out as the riparian canopy develops. Wildlands’ plans to treat the Asian spiderwort twice a year, as needed. Text has been added to Section 2.2 of the monitoring report. Please let me know if you have any questions. Sincerely, Kristi Suggs Senior Environmental Scientist ksuggs@wildlandseng.com