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HomeMy WebLinkAbout20171295 Ver 1_Yadkin01_SAW2017_01469_RES_Scout MY3 2023 Monitoring Report_20230825 3600 Glenwood Avenue. Suite 100 Raleigh, NC 27612 Corporate Headquarters 6575 West Loop South, Suite 300 Bellaire, TX 77401 Main: 713.520.5400 res.us August 25, 2023 Mr. Steve Kichefski U.S. Army Corps of Engineers Regulatory Division 151 Patton Ave. Room 208 Asheville, NC 28801-5006 RE: Scout Year 3 Monitoring Report (SAW-2017-01469 | RES Yadkin 01 Umbrella Mitigation Bank) Dear Mr. Kichefski, Please find attached the Scout Year 3 Monitoring Report. In Year 3, all 10 vegetation plots met the 320 stems per acre success criteria. Stem densities ranged from 364 to 1,416 per acre. Four bankfull events were recorded in 2023 on the stage recorder on CH1. No bankfull event was documented on the stage recorder in HC3 in 2023, however an event was documented in late December 2022. RES will continue to monitor stage recorders and update MY3 if any bankfull events should occur between now and MY4 reporting. The flow gauge on CH1 measured 63 consecutive flow days in 2023, this gage was replaced in September 2022 but went missing from the site until June 2023 when it was replaced. The flow gauge on CH2 measured 342 consecutive flow days. Previously in March 2022, a few areas along the easement were mowed, these areas were promptly delineated with additional easement signs. RES re-planted these areas of encroachment during February of 2023. Further details on species composition and number of stems can be found in section 1.7 of the report narrative. Comments from the Monitoring Year Two Credit Release Letter are located and italicized below with answers detailed in bold. RES is requesting a 10% stream credit release (291.8 SMUs) for the completion of the MY3 report. Please see enclosed the credit release timeline and an updated credit ledger. Thank you, Daniel Dixon | Ecologist 2 USACE comments: 1. USACE appreciates the quick response to address easement encroachments, besides additional signage, was the encroachment addressed with the entity responsible? a. Thank you. RES had a conversation with the landowner concerning the easements boundary and condition. No further encroachments have been noted this year. 2. When supplemental planting occurs after the MY2 dormant season, consider agency concerns for low diversity with new plant selection and distribution. a. RES considered the projects species composition when replanting in February 2023 and chose species that do not have a strong presence on site but were included in the original planting plan. 3. I’m glad black walnut was not present in MY2 veg plots. Are they being removed from the remainder of the site or just veg plots? a. Black walnut has been removed from veg plots and where found on site however this is an ongoing process. 4. Please continue to track the progress of previous IRT comments through future monitoring reports. a. Noted. DWR comments: 1. DWR appreciates the swift response to address new mowing encroachments, as well as planned supplemental planting to enhance species diversity. DWR was concerned with the low diversity reported in multiple veg plots. a. Thank you. RES is monitoring vegetation across the site and will conduct supplemental planting if volunteer species do not begin to diversify the vegetative composition. 2. DWR reiterates our recommendation to check monitoring gauges quarterly. It would’ve been helpful to have late summer flow data from CH1. a. RES will work to improve on this. Transaction Credits Released Credits Debited Current Credits Number To Bank From Bank Credit Balance Reserved Purchaser Project Permit Number Date HUC 1 437.70 12/27/19 2 437.70 11/30/20 3 291.80 2/1/22 4 291.80 12/22/22 5 674.00 NC Department of Transportation U-5824_NC66 widen SAW-2016-02028 8/8/23 03010401 Total 1,459.00 674.00 785.00 0.0 RES YADKIN 01 UMBRELLA MITIGATION BANKING INSTRUMENT SCOUT STREAM CREDIT LEDGER (HUC 03040101) Tuesday, August 8, 2023 Credits Released: Task 1 Credits Released: Task 3 Credits Released: Task 2 Credits Released: Task 4 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        2,918         2,918  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% 437.70 15% 15% 12/27/2019 2 (Year 0/As‐Built)3 15% 437.70 15% 15% 12/31/2020 11/30/2020 3 (Year 1 Monitoring)10% 291.80 10% 10% 12/31/2021 2/1/2022 4 (Year 2 Monitoring)10% 291.80 10% 15% 12/31/2022 12/22/2023 5 (Year 3 Monitoring)10% 291.80 15% 20% 11/15/2023 6 (Year 4 Monitoring)5% 145.90 5% 10% 12/31/2024 7 (Year 5 Monitoring)10% 291.80 15% 15% 12/31/2025 8 (Year 6 Monitoring)5% 145.90 5% NA NA 12/31/2026 9 (Year 7 Monitoring)10% 291.80 10% NA NA 12/31/2027 Stream Bankfull Standard4 10% 291.80 NA NA NA NA NA NA Varies4 Total Credits Release to Date 1459.00 Date Wilmington District Mitigation Bank Credit Release Schedule 4 ‐ A 10% reserve of credits to be held back until the bankfull event performance standard has been met. 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. Contingencies (if any): None Signature of Wilmington District Official Approving Credit Release Scout Stream Mitigation Project EBX SAW‐2017‐01469 Potential Credits from Mitigation Plan Forested Wetland Credits Total Potential Credits  Projected  Release Date Actual Release  Date Potential Credits from As‐Built Survey Stream Credits Credit Classification Non‐Forested Wetland  CreditsForested Wetland CreditsStream Credits Current and Future Credit Releases Credit Release Milestone Davie 03040101 2019 8/23/2023 County: 8‐Digit HUC: Year Project Instituted: Date Prepared: SCOUT STREAM MITIGATION SITE DAVIE COUNTY, NORTH CAROLINA RES YADKIN 01 UMBRELLA MITIGATION BANK SAW-2017-01469 YEAR 3 MONITORING REPORT Provided by: Bank Sponsor: Environmental Banc & Exchange, LLC An entity of Resource Environmental Solutions 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 919-209-1056 August 2023 Scout Year 3 Monitoring Report Stream Mitigation Site August 2023 Table of Contents 1.0 Project Summary ...................................................................................................................................................... 1 1.1 Project Location and Description ....................................................................................................... 1 1.2 Project Goals and Objectives ............................................................................................................... 2 1.3 Project Success Criteria .......................................................................................................................... 3 Stream Success Criteria .................................................................................................................................. 3 Vegetation Success Criteria .......................................................................................................................... 3 1.4 Project Components ................................................................................................................................ 4 1.5 Stream Design/Approach ...................................................................................................................... 4 1.6 Construction and As-Built Conditions .............................................................................................. 5 1.7 Monitoring Performance (MY3) .......................................................................................................... 5 Vegetation .......................................................................................................................................................... 5 Stream Geomorphology ................................................................................................................................ 6 Stream Hydrology ............................................................................................................................................ 6 2.0 Methods ...................................................................................................................................................................... 6 3.0 References .................................................................................................................................................................. 7 Appendix A: Background Tables Table 1: Project Mitigation Components Table 2: Project Activity and Reporting History Table 3: Project Contacts Table Table 4: Project Background Information Table Figure 1: Site Location Map Appendix B: Visual Assessment Data Figure 2: Current Conditions Plan View Vegetation Plot Photos Monitoring Device Photos Crossing Photos Appendix C: Vegetation Plot Data Table 5: Planted Species Summary Table 6: Vegetation Plot Mitigation Success Summary Table 7. Stem Count Total and Planted by Plot Species Appendix D: Stream Measurement and Geomorphology Data MY3 Cross-Section Plots Table 8. Baseline Stream Data Summary Table 9. Cross Section Morphology Data Table Appendix E: Hydrology Data Table 10. 2023 Rainfall Summary Table 11. Documentation of Geomorphically Significant Flow Events MY3 Stream Flow Hydrographs Scout 1 Year 3 Monitoring Report Stream Mitigation Site August 2023 1.0 Project Summary 1.1 Project Location and Description The Scout Mitigation Site (the “Project”) is located in Davie County, North Carolina, approximately eight miles west of Clemmons and five miles northwest of Bermuda Run. Water quality stressors that affected the Project included livestock production, agricultural production, and lack of riparian buffer. The Project presents 3,144 linear feet (LF) of stream restoration and enhancement generating 2,918 Warm Stream Mitigation Units (SMU) along Hauser Creek and two unnamed tributaries. The Project is located in the Yadkin River Basin within Cataloging Unit 03040101, Target Local Watershed (TLW) 03040101160010, and NC Division of Water Resources (DWR) subbasin 03-07- 02. The current State classification for Hauser Creek is Water Supply IV (WS-IV). WS-IV waters are sources of water supply for drinking, culinary, or food processing purposes where a WS-I, II or III classification is not feasible. These waters are also protected for Class C uses (NCDWQ, 2011). The Project’s total easement area is approximately 13.22 acres within the overall drainage area of 810 acres and consisted of agricultural fields and wooded areas. The Project is between two separate portions of the Division of Mitigation Services (DMS) Mockingbird Site. While each site could be developed independently of the other, the combined easements result in a much larger contiguous protected corridor and high-quality aquatic habitat. The Mockingbird Site has a total easement area that is approximately 27 acres and presents 8,998 linear feet of stream restoration, enhancement, and preservation. Additionally, the Mockingbird Site connects to the upstream end of the DMS Hauser Creek Mitigation Site. All sites combined total 49.3 acres and 14,605 LF of stream that are protected in perpetuity. The stream design approach for the Project combined the analog method of natural channel design with analytical methods to evaluate stream flows and hydraulic performance of the channel and floodplain. The analog method involved the use of a reference reach, or “template” stream, adjacent to, nearby, or previously in the same location as the design reach. The template parameters of the analog reach were replicated to create the features of the design reach. The analog approach is useful when watershed and boundary conditions are similar between the design and analog reaches (Skidmore et al., 2001). Hydraulic geometry was developed using analytical methods to identify the design discharge. The Project will be monitored on a regular basis throughout the seven-year post-construction monitoring period, or until performance standards are met. Upon approval for closeout by the Interagency Review Team (IRT), the site will be transferred to Unique Places to Save (UP2S). This party shall serve as conservation easement holder and long-term steward for the property and will conduct periodic inspection of the site to ensure that restrictions required in the conservation Scout 2 Year 3 Monitoring Report Stream Mitigation Site August 2023 easement are upheld. Endowment funds required to uphold easement and deed restrictions will be finalized prior to site transfer to the responsible party. 1.2 Project Goals and Objectives Through the comprehensive analysis of the Project’s maximum functional uplift using the Stream Functions Pyramid Framework, specific, attainable goals and objectives will be realized by the Project. These goals clearly address the degraded water quality and nutrient input from farming that were identified as major watershed stressors in the 2009 Upper Yadkin Pee-Dee River RBRP. The Project goals are: • Improve water transport from watershed to the channel in a non-erosive manner in a stable channel; • Improve flood flow attenuation on site and downstream by allowing for overbanks flows and connection to the active floodplain; • Improve instream habitat; • Restore and enhance native floodplain vegetation; and • Indirectly support the goals of the 2009 Upper Yadkin Pee-Dee RBRP to improve water quality and to reduce sediment and nutrient loads. The Project objectives to address the goals are: • Designed and reconstructed stable stream channels with appropriate pattern, dimension, and profile based on reference reach conditions; • Added in-stream structures and bank stabilization measures to protect restored and enhanced streams; • Installed habitat features such as brush toes, constructed riffles, woody materials, and pools of varying depths to restored and enhanced streams; • Reduced bank height ratios and increased entrenchment ratios to reference reach conditions; • Increased forested riparian buffers to at least 50 feet on both sides of the channel along the project reaches with a hardwood riparian plant community; • Treated exotic invasive species; • Established a permanent conservation easement on the Project that excludes livestock from stream channels and their associated buffers. Limitations to achieving these watershed goals arise by remaining constrained to the project boundaries. While we are restoring the habitat and streams to stable and effective conditions that achieve our goals within the Project parcels, we are unable to influence the effect of poor riparian buffers and livestock impact in other areas within the watershed. However, through this Project’s connectivity with other projects in the watershed, especially its close proximity to the DMS Mockingbird and Hauser Creek Sites, and responsible stewardship of current restoration projects, overall watershed functionality and health will improve to meet the RBRP goals. Scout 3 Year 3 Monitoring Report Stream Mitigation Site August 2023 1.3 Project Success Criteria The Project follows the USACE 2003 Stream Mitigation Guidelines and the “Wilmington District Stream and Wetland Compensatory Mitigation Update” dated October 24, 2016. Cross section and vegetation plot data will be collected in Years 0, 1, 2, 3, 5, and 7. Stream hydrology data and visual monitoring will be reported annually. Stream Success Criteria Four bankfull flow events must be documented within the seven-year monitoring period. The bankfull events must occur in separate years. Otherwise, the stream monitoring will continue until four bankfull events have been documented in separate years. There should be little change in as-built cross sections. If changes do take place, they should be evaluated to determine if they represent a movement toward a less stable condition (for example down-cutting or erosion) or are minor changes that represent an increase in stability (for example settling, vegetative changes, deposition along the banks, or decrease in width/depth ratio). Cross sections shall be classified using the Rosgen stream classification method, and all monitored cross sections should fall within the quantitative parameters defined for channels of the design stream type. Bank height ratio shall not exceed 1.2, and the entrenchment ratio shall be no less than 2.2 for all measured riffle cross-sections on a given reach. Channel stability should be demonstrated through a minimum of four bankfull events documented in the seven-year monitoring period. Digital images are used to subjectively evaluate channel aggradation or degradation, bank erosion, success of riparian vegetation, and effectiveness of erosion control measures. Longitudinal images should not indicate the absence of developing bars within the channel or an excessive increase in channel depth. Lateral images should not indicate excessive erosion or continuing degradation of the banks over time. A series of images over time should indicate successional maturation of riparian vegetation. Vegetation Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the Project will follow IRT Guidance. Vegetation monitoring plots are a minimum of 0.02 acres in size and cover a minimum of two percent of the planted area. The interim measures of vegetative success for the Project is the survival of at least 320 planted three-year old trees per acre at the end of Year 3, 260 trees per acre at an average of seven feet in height at the end of Year 5, and the final vegetative success criteria is 210 trees per acre with an average height of ten feet at the end of Year 7. Volunteer trees are counted, identified to species, and included in the yearly monitoring reports, but do not currently count towards the success criteria of total planted stems. Moreover, any single species can only account for up to 50 percent of the required number of stems within any vegetation plot. Any stems in excess of 50 percent are shown in the monitoring table but were not used to demonstrate success. Scout 4 Year 3 Monitoring Report Stream Mitigation Site August 2023 1.4 Project Components The Project area is comprised of a single easement located along Hauser Creek and two unnamed tributaries, totaling 2,801 existing LF, which eventually drain into the Yadkin River. There are three stream reaches, including Hauser Creek (HC3) and two unnamed tributaries (CH1 and CH2), divided by treatment type. The Project is located between two sections of the overall 27-acre Division of Mitigation Services (DMS) Mockingbird Site (Figure 1). The Project is accessible from Spillman Road, through the Project parcel. The stream mitigation components are summarized below. Mitigation credits presented below are based upon the Approved Mitigation Plan. To account for areas of more or less than minimum 30-foot buffer widths, credits were adjusted using the USACE Wilmington District Stream Buffer Credit Calculator. Project stream lengths and credits are detailed further in Appendix A. Scout Mitigation Plan Credits Warm Stream Riparian Wetland Non-Riparian Wetland Total 2,918 NA NA 1.5 Stream Design/Approach Stream restoration efforts along the tributaries of the Project were accomplished through analyses of geomorphic conditions and watershed characteristics. The design approach applied a combination of analytical and reference reach-based design methods that meet objectives commensurate with both ecological and geomorphic improvements. Treatment activities ranged from minor bank grading and planting to re-establishing stable planform and hydraulic geometry. For full restoration reaches, natural design concepts were applied and verified through rigorous engineering analyses and modeling. The objective of this approach was to design a geomorphically stable channel that provides habitat improvements and ties into the existing landscape. Specifically, treatments included Priority I Restoration and Enhancement Level II. The Project has been broken into the following reaches: Reach HC3 – This reach, part of Hauser Creek, begins on the south end of the project and flows north towards the Mockingbird Mitigation Site, transitioning off site through a 24 LF of 48-inch double barrel RCP at a 40-foot-wide conservation easement break. Priority I restoration was completed along this reach for a total of 2,686 LF. Sparse woodland and managed pasture were located adjacent to the reach. Restoration activities included constructing a new channel within the natural valley to restore the stream’s connection with the existing floodplain and backfilling the abandoned channel. In-stream structures such as log sills, brush toes, rock cross vanes, and log vanes were installed for stability and to improve habitat. Habitat will further be improved through buffer plantings. Buffer activities improve riparian areas that filter runoff from adjacent Scout 5 Year 3 Monitoring Report Stream Mitigation Site August 2023 pastures, thereby reducing nutrient and sediment loads to the channel. A hunting blind near the northern portion of the reach was removed, as well as an existing crossing. Reach CH1 – This reach is a tributary on the western side of HC3 and flows east. This reach totals 348 linear feet of Enhancement II. Sparse woodland and managed pasture were located adjacent to the reach. Enhancement activities included improving habitat through supplemental buffer plantings. The widening and restoration of the riparian areas along the left bank will filter runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach CH2 – This reach is a tributary on the western side of HC3 and flows east. This reach totals 110 linear feet of Enhancement II. Sparse woodland and managed pasture were located adjacent to the reach. Enhancement activities included improving habitat through supplemental buffer plantings. The widening and restoration of the riparian areas along the left bank will filter runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. 1.6 Construction and As-Built Conditions Stream construction and planting was completed in May 2020 and fencing was completed in July 2020. Overall, the Project was built to design plans and guidelines. A redline version of the as-built survey is included in Appendix F. Project credits are based on design centerline, but as-built stream lengths are shown on Appendix A, Table 1. Also, there were a few changes to the planting plan due to bareroot availability. Changes are detailed on Appendix C, Table 5. 1.7 Monitoring Performance (MY3) Vegetation Monitoring of the seven fixed vegetation plots and three random plots was completed during August 2023. Vegetation data are in Appendix C, associated photos are in Appendix B, and plot locations are in Appendix B. MY3 monitoring data indicates that 10 out of 10 plots are exceeding the interim success criteria of 320 planted stems per acre. Planted stem densities ranged from 364 to 1,416 with an average of 705 across all plots. A total of nine species were documented within the plots. Volunteer species were noted in three of the plots. The average stem height across all vegetation plots was 4.12 feet. Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. RES performed supplemental planting in February 2023. The supplemental planting included about 85 three-gallon trees along the previously encroached easement line. Species included were persimmon, water oak, willow Scout 6 Year 3 Monitoring Report Stream Mitigation Site August 2023 oak, and northern red oak. Species were chosen to help diversify the vegetative community from volunteer black willow and sycamore stems. Stream Geomorphology Geomorphology data for MY3 was collected during June 2023. Summary tables and cross section plots are in Appendix D. Overall, the baseline cross sections and profile on the restoration reach relatively match the design. The current conditions indicate that shear stress and velocities have been reduced for all restoration/enhancement reaches. All reaches were designed as very coarse sand bed channels and remain classified as very coarse sand bed channels post-construction. Visual assessment of the stream channel was performed to document signs of instability, such as eroding banks, structural instability, or excessive sedimentation. The channel is transporting sediment as designed and will continue to be monitored for aggradation and degradation. Stream Hydrology In May 2020, one stage recorder was installed on restoration reach HC3 to document bankfull events and flow gauges were installed on reaches CH1 and CH2 to track the frequency and duration of stream flow events. Additionally, the flow gauge on CH1 is being used to document bankfull events. During the month of March in 2022 the gage located on CH1 was damaged and no longer functioning, this gage was replaced on September 1st, 2022. When downloading in June 2023, this gage and its cap were not found on site with the well casing. The CH1 gage was again replaced in June 2023 and downloaded in August 2023, the replaced gage now uses a different sealing cap to reduce any tampering. CH1 has 63 days of continuous flow data, the entirety of its functionality during this monitoring period, and four out of bank events. In MY3, the stage recorder on HC3 did not have any our of bank events however a bankfull event was recorded in late December 2022. The flow gauge on CH2 recorded 342 consecutive flow days. The stage recorder and flow gauge locations can be found on Figure 2, photos are in Appendix B, and associated data is in Appendix E. 2.0 Methods Stream geomorphology monitoring was conducted using a Topcon GTS-312 Total Station. Three- dimensional coordinates associated with cross-section data were collected in the field (NAD83 State Plane feet FIPS 3200). Morphological data were collected at six cross-sections. Survey data were imported into CAD, ArcGIS®, and Microsoft Excel® for data processing and analysis. Stream hydrology is monitored using stage recorders and flow gauges, which utilize automatic pressure transducers, and were installed within the channels. The stage recorders record frequency, duration, and stage of bankfull events and are programmed to record readings at an hourly interval. A surveyed elevation was recorded at the bed and top of bank at the stage recorder elevation, allowing for accurate bankfull events to be recorded. Flow gauges record Scout 7 Year 3 Monitoring Report Stream Mitigation Site August 2023 frequency, duration, and stage of flow events and are programmed to read at an hourly interval. The height of the adjacent downstream riffle (from the gauge) is used to detect flow. Vegetation success is being monitored at seven permanent monitoring plots and three random plots for a total of ten plots. Locations of random plots will vary from year to year and will be shown in Figure 2, and species and height will be recorded for all woody stems. Vegetation plot monitoring follows the CVS-EEP Level 2 Protocol for Recording Vegetation, version 4.2 (Lee et al. 2008) and includes analysis of species composition and density of planted species. Data are processed using the CVS data entry tool. In the field, the four corners of each plot were permanently marked with PVC at the origin and metal conduit at the other corners. Photos of each plot are taken from the origin each monitoring year. 3.0 References Harman, W., R. Starr, M. Carter, K. Tweedy, M. Clemmons, K. Suggs, C. Miller. 2012. A Function- Based Framework for Stream Assessment and Restoration Projects. US Environmental Protection Agency, Office of Wetlands, Oceans, and Watersheds, Washington, DC EPA 843-K-12-006. Lee Michael T., Peet Robert K., Roberts Steven D., and Wentworth Thomas R. 2008. CVS-EEP Protocol for Recording Vegetation Level. Version 4.2 Peet, R.K., Wentworth, T.S., and White, P.S. (1998), A flexible, multipurpose method for recording vegetation composition and structure. Castanea 63:262-274 Resource Environmental Solutions. 2019. Scout Mitigation Site - Final Mitigation Plan. Rosgen, D. 1996. Applied River Morphology, 2nd edition, Wildland Hydrology, Pagosa Springs, CO. US Army Corps of Engineers (USACE). 2003. April 2003 NC Stream Mitigation Guidelines. USACE. 2016. Wilmington District Stream and Wetland Compensatory Mitigation Update. Appendix A Background Tables Table 1.  Scout ‐ Mitigation Assets and Components Existing Mitigation Footage Plan Mitigation As-Built or Footage or Mitigation Restoration Priority Mitigation Plan Footage or Project Segment Acreage Acreage Category Level Level Ratio (X:1) Credits Acreage Comments HC3 2,484 2,686 Warm R 1 1.00000 2686.000 2686 Full Channel Restoration, Planted Buffer, Exclusion of Livestock, Permanent Conservation Easement CH1 249 348 Warm EII NA 2.50000 139.200 348 Riparian planting, livestock exclusion, Permanent Conservation Easement CH2 68 110 Warm EII NA 2.50000 44.000 110 Riparian planting, livestock exclusion, Permanent Conservation Easement Project Credits Non-Rip Coastal Warm Cool Cold Riverine Non-Riv Wetland Marsh Restoration 2686.000 Re-establishment Rehabilitation Enhancement Enhancement I Enhancement II 183.200 Creation Preservation Total 2869 Credit Loss in Buffer -174 Credit Gain in Buffer 223 Total Adjusted SMUs 2918 Restoration Level Stream Riparian Wetland Elapsed Time Since grading complete: 3 year 3 months Elapsed Time Since planting complete: 3 years 3 months Number of reporting Years1:3 Data Collection Completion or Activity or Deliverable Complete Delivery Restoration Plan NA Jun-19 Final Design – Construction Plans NA Sep-19 Stream Construction NA May-20 Site Planting NA May-20 As-built (Year 0 Monitoring – baseline) May-20 Sep-20 Supplemental Planting NA Jan-21 Bank Erosion Hand Repair NA Jan-21 Year 1 Monitoring XS: Jul-21 VP: Sep-21 Sep-21 Invasive Vegetation Treatment NA Aug-22 Supplemental Planting NA Mar-22 Easement Encroachment Repair NA Mar-22 Year 2 Monitoring XS: Jun-22 VP: Aug-22 Sep-22 Supplemental Planting NA Feb-23 Year 3 Monitoring XS: Jun-23 VP: Aug-23 Aug-23 Year 4 Monitoring Year 5 Monitoring Year 6 Monitoring Year 7 Monitoring 1 = The number of reports or data points produced excluding the baseline Table 2. Project Activity and Reporting History Scout Mitigation Site Designer RES / 3600 Glenwood Avenue, Suite 100, Raleigh, NC 27612. Primary project design POC Frasier Mullen Construction Contractor KBS Earthwork Inc./ 5616 Coble Church Rd., Julian, NC 27283 Construction contractor POC Kory Strader Survey Contractor Matrix East, PLLC / 906 N. Queen St., Suite A, Kinston, NC 28501 Survey contractor POC Chris Paderick, PLS Planting Contractor H&J Forestry Planting contractor POC Matt Hitch Monitoring Performers RES / 3600 Glenwood Avenue, Suite 100, Raleigh, NC 27612. Stream Monitoring POC Daniel Dixon (864) 567-7761 Vegetation Monitoring POC Daniel Dixon (864) 567-7761 Table 3. Project Contacts Table Scout Mitigation Site USGS Hydrologic Unit 8-digit 3040101 Supporting Docs? SAW-2017- 01469 DWR #17- 1295 Mit Plan Mit Plan N/A Mit Plan N/A Physiographic Province Southern Outer Piedmont Table 4. Project Background Information Project Name Scout County Davie Project Area (acres) 13.22 Project Coordinates (latitude and longitude) Latitude: 36.030798 N Longitude: -80.516312 W Planted Acreage (Acres of Woody Stems Planted) 10.9 Project Watershed Summary Information River Basin Yadkin USGS Hydrologic Unit 14-digit 3040101160010 DWR Sub-basin 03-07-02 Project Drainage Area (Acres and Square Miles)810 ac (1.266 mi2) Project Drainage Area Percentage of Impervious Area 2% CGIA Land Use Classification Agriculture (49%), Residential (8%), Forest (39%), Impervious (2%) Valley confinement (Confined, moderately confined, unconfined) Drainage area (Acres) Reach Summary Information Parameters Length of reach (linear feet) (designed) HC3 2,686 810 CH2 110 156 Evolutionary trend (Simon) (existing) FEMA classification Stream Classification (existing) Stream Classification (proposed) Perennial, Intermittent, Ephemeral NCDWR Water Quality Classification Regulatory Considerations Parameters Applicable? Resolved? Water of the United States - Section 404 Yes Yes Water of the United States - Section 401 Yes Yes Endangered Species Act Yes Yes Historic Preservation Act Yes Yes Coastal Zone Management Act (CZMA or CAMA) No N/A FEMA Floodplain Compliance Yes N/A Essential Fisheries Habitat No N/A CH1 348 43 I E4/5b E4/5b P E4 E4/E5 I E4 E4 0 2,0001,000 Feet Legend Conser vation Easement Mockingbird Easement Catbird Easemen t Hauser Creek Ea sement ©Date: 10/27/2022 Drawn by: GDS Checked by: RTM Document Path : R:\Resgis\entgis\Projects\100147_Scout\MXD\6_MonitoringMaintenan ce\MY2\Figure 1 - Vicinity Map - Scout.mxd 1 inch = 2,000 feet Restoring a resilient earth for a mod ern wo rld Figure 1 - Project Location ScoutMitigation Project Davie County, North Car olina Appendix B Visual Assessment Data !. !. !> HC3 1 2 3 4 5 6 7 5 6 3 2 1 4 1 2 3 © Figure 2 - CCPV MY3 ScoutMitigation Project Davie County,North Carolina Date: 8/24/2023 Drawn by: DGD Document Path: R:\Resgis\entgis\Projects\100147_Scou t\M XD\6_MonitoringMaintenance\MY3\Figure 2 - CCPV MY3 - Scout.mxd Restoring a resilient earth for a modern world 1 in = 191 feet 0 200100 Feet Legend ConservationEasement Mockingbird Easement Existing Wetland Supplemental Planting- 0.34 ac Vegetation Plot >320 stems/acre <320 stems/acre Random Veg Plot(MY3) Design Centerline Restoration Enhancement II No Credit Cross Section Structure Top of Bank !>Stage Recorder !.Flow Gauge Checked by: RTM CH2 CH1 Scout MY3 Vegetation Monitoring Plot Photos Vegetation Plot 1 (08/09/2023) Vegetation Plot 2 (08/09/2023) Vegetation Plot 3 (08/09/2023) Vegetation Plot 4 (08/09/2023) Vegetation Plot 5 (08/09/2023) Vegetation Plot 6 (08/09/2023) Vegetation Plot 7 (08/09/2023) Random Vegetation Plot 1 (08/09/2023) Random Vegetation Plot 2 (08/09/2023) Random Vegetation Plot 3 (08/09/2023)   Scout MY3 Monitoring Device Photos Stage Recorder HC3 (08/09/2023) Flow Gauge CH1 (08/09/2023) Flow Gauge CH2 (08/09/2023) Ambient (08/09/2023) Scout MY3 Crossing Photos Culvert looking downstream (06/01/2023) Culvert looking upstream (06/01/2023) Appendix C Vegetation Plot Data Appendix C. Vegetation Assessment Data Table 5. Planted Species Summary Table 6. Vegetation Plot Mitigation Success Summary Crab Apple Scientific Name M itigation Plan % As-Built %Total Stems Planted Willow Oak Quercus phellos 15 14 2,000 Water Oak Quercus nigra 15 14 2,000 Northern Red Oak Quercus rubra 10 14 2,000 River Birch Betula nigra 15 10 1,600 Sycamore Platanus occidnetalis 15 10 1,600 Yellow Poplar Liriodendron tulipifera 10 8 1,100 Persimmon Diospyros virginiana 5 7 1,000 Crab Apple Malus angustifolia 0 5 800 Green Ash Fraxinus pennsylvanica 10 5 700 Black Walnut Juglans nigra 0 3 400 Sugarberry Celtis laevigata 0 2 350 Silky Dogwood Cornus amomum 0 2 300 Elderberry Sambucus canadensis 0 2 300 Eastern Redbud Cercis canadensis 0 2 300 American Plum Prunus americana 0 2 300 Blackgum Nyssa Sylvatica 5 0 0 14,750 10.9 1,353 Total Planted Area As-built Planted Stems/Acre Plot # Planted Stems/Acre Volunteer Stems/Acre Total Stems/Acre Success Criteria Met? Average Planted Stem Height (ft) 1 607 1255 1862 Yes 7.21 2 364 850 1214 Yes 3.26 3 890 121 1012 Yes 3.38 4 445 81 526 Yes 6.04 5 688 0 688 Yes 5.58 6 1416 0 1416 Yes 2.21 7 526 0 526 Yes 4.81 R1 486 0 486 Yes 2.94 R2 647 0 647 Yes 3.46 R3 647 0 647 Yes 4.75 Project Avg 705 330 1035 Yes 4.12 Appendix C. Vegetation Assessment Data Table 7. Stem Count Total and Planted by Plot Species 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 Betula nigra river birch Tree 4 4 6 3 3 3 6 6 6 12 12 12 Celtis laevigata sugarberry Tree 1 1 1 5 5 5 Celtis occidentalis common hackberry Tree Cephalanthus occidentalis common buttonbush Shrub Cercis canadensis eastern redbud Tree 1 1 1 1 1 1 Cornus amomum silky dogwood Shrub 9 9 9 3 3 3 Diospyros virginiana common persimmon Tree 5 5 5 1 1 2 3 3 3 16 16 16 1 1 1 Juglans nigra black walnut Tree Liriodendron tulipifera tuliptree Tree Malus angustifolia southern crabapple Tree Platanus occidentalis American sycamore Tree 4 4 34 3 3 4 3 3 5 Quercus nigra water oak Tree 1 1 1 Quercus phellos willow oak Tree 2 2 2 2 2 2 Quercus rubra northern red oak Tree 9 9 9 17 17 17 2 2 2 5 5 5 3 3 3 Salix nigra black willow Tree 1 20 Sambucus canadensis Common Elderberry Shrub 15 15 46 9 9 30 22 22 25 11 11 13 17 17 17 35 35 35 13 13 13 3 3 4 3 3 4 4 4 4 4 4 4 3 3 3 7 7 7 2 2 2 607 607 1862 364 364 1214 890 890 1012 445 445 526 688 688 688 1416 1416 1416 526 526 526 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 Betula nigra river birch Tree 6 6 6 4 4 4 25 25 27 26 26 26 25 25 31 35 35 35 Celtis laevigata sugarberry Tree 6 6 6 6 6 6 Celtis occidentalis common hackberry Tree 3 3 3 3 3 3 Cephalanthus occidentalis common buttonbush Shrub 1 1 1 4 4 4 4 4 9 Cercis canadensis eastern redbud Tree 1 1 1 2 2 2 2 2 2 2 2 2 13 13 13 Cornus amomum silky dogwood Shrub 1 1 1 12 12 12 11 11 11 12 12 12 10 10 10 Diospyros virginiana common persimmon Tree 6 6 6 5 5 5 26 26 27 24 24 27 20 20 20 9 9 9 Juglans nigra black walnut Tree 1 1 1 7 7 7 Liriodendron tulipifera tuliptree Tree 1 1 1 22 22 22 Malus angustifolia southern crabapple Tree 2 12 12 12 Platanus occidentalis American sycamore Tree 4 4 4 1 1 1 10 10 43 10 10 60 5 5 61 11 11 11 Quercus nigra water oak Tree 1 1 1 1 1 1 2 2 2 18 18 18 Quercus phellos willow oak Tree 5 5 5 1 1 1 2 2 2 4 4 4 3 3 4 3 3 3 36 36 36 Quercus rubra northern red oak Tree 2 2 2 3 3 3 2 2 2 36 36 36 39 39 39 34 34 34 35 35 35 Salix nigra black willow Tree 21 15 16 Sambucus canadensis Common Elderberry Shrub 4 4 4 12 12 12 16 16 16 16 16 16 122 122 179 123 123 194 112 112 195 218 218 218 4 4 4 4 4 4 7 7 7 9 9 10 10 10 12 12 12 13 13 13 13 486 486 486 647 647 647 647 647 647 705 705 1035 711 711 1122 647 647 1127 1260 1260 1260 Scientific Name Common Name Species Type 0381-01-0001 0381-01-0002 1 0.02 0381-01-0007 Current Plot Data (MY3 2023) 0381-01-0003 0381-01-0004 0381-01-0005 0381-01-0006 1 0.02 1 Stem count size (ares) size (ACRES) Species count Stems per ACRE 0.02 1 0.02 1 0.02 MY0 (2020) 1 0.02 1 0.02 7 size (ACRES)0.02 0.02 0.02 0.17 0.17 0.17 0.17 7size (ares)1 1 1 Species count Stems per ACRE Random Plot Data (MY3 2023) 7 7 Stem count Annual Means Scientific Name Common Name Species Type 0381-01-RVP 1 0381-01-RVP 2 0381-01-RVP 3 MY3 (2023)MY2 (2022)MY1 (2021) Appendix D Stream Measurement and Geomorphology Data 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Upstream Downstream 718 719 720 721 722 723 724 725 726 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 El e v a t i o n ( f t ) Distance (ft) Scout -Reach HC3 - Cross Section 1 -Pool - Restoration MY0 2020 MY1 2021 MY2 2022 MY3 2023 Approx. Bankfull Low Bank Elevation 3X Vertical Exaggeration MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA1 723.17 723.4 723.3 723.4 Bankfull Width (ft)1 22.2 22.3 19.8 20.5 Floodprone Width (ft)1 ---- Bankfull Max Depth (ft)2 4.0 3.5 3.3 3.4 Low Bank Elevation (ft) 723.17 723.4 722.8 723.2 Bankfull Cross Sectional Area (ft2)2 45.4 44.8 35.2 41.8 Bankfull Entrenchment Ratio1 ---- Bankfull Bank Height Ratio1 ---- Cross Section 1 (Pool) 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Upstream Downstream 719 720 721 722 723 724 725 726 727 0369121518212427303336394245485154576063 El e v a t i o n ( f t ) Distance (ft) Scout -Reach HC3 - Cross Section 2 -Riffle - Restoration MY0 2020 MY1 2021 MY2 2022 MY3 2023 Approx. Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA1 723.13 723.1 723.1 723.2 Bankfull Width (ft)1 20.4 19.5 18.0 22.9 Floodprone Width (ft)1 >64.9 >65.1 >65.1 >64.9 Bankfull Max Depth (ft)2 2.5 2.6 2.2 2.5 Low Bank Elevation (ft) 723.13 723.1 722.7 723.1 Bankfull Cross Sectional Area (ft2)2 33.7 33.9 26.2 30.2 Bankfull Entrenchment Ratio1 >3.2 >3.3 >3.3 >2.8 Bankfull Bank Height Ratio1 1.0 1.0 1.0 0.9 Cross Section 2 (Riffle) 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Upstream Downstream 716 717 718 719 720 721 722 723 724 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 El e v a t i o n ( f t ) Distance (ft) Scout -Reach HC3 - Cross Section 3 -Riffle - Restoration MY0 2020 MY1 2021 MY2 2022 Approx. Bankfull Floodprone Area Low Bank Elevation MY3 2023 3X Vertical Exaggeration MY0MY1MY2MY3MY5MY7MY+ Bankfull Elevation (ft) - Based on AB-XSA1 720.11 720.3 720.3 720.2 Bankfull Width (ft)1 20.0 21.9 19.4 22.3 Floodprone Width (ft)1 >65.1 >65.1 >64.8 >64.9 Bankfull Max Depth (ft)2 2.7 2.4 2.4 2.9 Low Bank Elevation (ft) 720.11 720.1 720.0 720.2 Bankfull Cross Sectional Area (ft2)2 38.9 34.8 33.4 37.0 Bankfull Entrenchment Ratio1 >3.3 >3.0 >3.3 >2.9 Bankfull Bank Height Ratio1 1.0 0.9 0.9 1.0 Cross Section 3 (Riffle) 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Upstream Downstream 715 716 717 718 719 720 721 722 723 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 El e v a t i o n ( f t ) Distance (ft) Scout -Reach HC3 - Cross Section 4 -Pool - Restoration MY0 2020 MY1 2021 MY2 2022 MY3 2023 Approx. Bankfull Low Bank Elevation 3X Vertical Exaggeration MY0MY1MY2MY3MY5MY7MY+ Bankfull Elevation (ft) - Based on AB-XSA1 720.08 720.1 720.1 720.1 Bankfull Width (ft)1 23.2 25.8 22.1 21.8 Floodprone Width (ft)1 ---- Bankfull Max Depth (ft)2 4.2 2.0 3.9 4.3 Low Bank Elevation (ft) 720.08 720.1 720.1 720.2 Bankfull Cross Sectional Area (ft2)2 50.9 50.9 47.8 51.4 Bankfull Entrenchment Ratio1 ---- Bankfull Bank Height Ratio1 ---- Cross Section 4 (Pool) 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Upstream Downstream 713 714 715 716 717 718 719 720 721 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 El e v a t i o n ( f t ) Distance (ft) Scout -Reach HC3 - Cross Section 5 -Pool - Restoration MY0 2020 MY1 2021 MY2 2022 MY3 2023 Approx. Bankfull Low Bank Elevation 3X Vertical Exaggeration MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA1 717.81 717.8 717.8 717.9 Bankfull Width (ft)1 22.3 23.9 25.7 21.2 Floodprone Width (ft)1 ---- Bankfull Max Depth (ft)2 3.7 3.7 3.6 3.8 Low Bank Elevation (ft) 717.81 717.8 717.8 717.9 Bankfull Cross Sectional Area (ft2)2 44.6 44.0 42.5 43.1 Bankfull Entrenchment Ratio1 ---- Bankfull Bank Height Ratio1 ---- Cross Section 5 (Pool) 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Upstream Downstream 714 715 716 717 718 719 720 721 722 0 3 6 9 121518212427303336394245485154576063 El e v a t i o n ( f t ) Distance (ft) Scout -Reach HC3 - Cross Section 6 -Riffle - Restoration MY0 2020 MY1 2021 MY2 2022 MY3 2023 Approx. Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration MY0MY1MY2MY3MY5MY7MY+ Bankfull Elevation (ft) - Based on AB-XSA1 717.82 717.9 717.8 717.8 Bankfull Width (ft)1 20.6 19.3 19.2 19.7 Floodprone Width (ft)1 >64.9 >65.0 >64.8 >64.8 Bankfull Max Depth (ft)2 2.7 2.7 2.7 2.7 Low Bank Elevation (ft) 717.82 717.8 717.7 717.7 Bankfull Cross Sectional Area (ft2)2 38.4 37.1 36.4 38.4 Bankfull Entrenchment Ratio1 >3.1 >3.4 >3.4 >3.3 Bankfull Bank Height Ratio1 1.0 1.0 1.0 1.0 Cross Section 6 (Riffle) Parameter Gauge 2 Dimension and Substrate - Riffle Only LL UL Eq. Min Mean Med Max SD 5 n Min Mean Med Max SD 5 n Min Med Max Min Mean Med Max SD 5 n Bankfull Width (ft)--- --- ---10.7 --- --- 11.9 --- 2 --- --- 13.7 --- --- 1 --- 19.0 --- 20.0 20.3 20.4 20.6 0.33 Floodprone Width (ft)25.2 --- --- 30.2 --- 2 --- --- >50 --- --- 1 --- >50 --- 64.9 65.0 64.9 65.1 0.1 3 Bankfull Mean Depth (ft)--- --- ---2.3 --- --- 2.4 --- 2 --- --- 1.4 --- --- 1 --- 1.8 --- --- --- --- --- --- --- 1Bankfull Max Depth (ft)3.4 --- --- 3.7 --- 2 --- --- 1.7 --- --- 1 --- 2.4 --- 2.5 2.6 2.7 2.7 0.1 3 Bankfull Cross Sectional Area (ft2)--- --- ---25.6 --- --- 27.4 --- 2 --- --- 18.1 --- --- 1 --- 35.1 --- 33.7 37.0 38.4 38.9 2.93 Width/Depth Ratio 4.5 --- --- 5.2 --- 2 --- --- 9.8 --- --- 1 --- 10.3 --- --- --- --- --- --- --- Entrenchment Ratio 2.3 --- --- 2.5 --- 2 --- --- >2.2 --- --- 1 --- >2.2 --- 3.1 3.2 3.2 3.3 0.1 3 1Bank Height Ratio 2.1 --- --- 2.1 --- 2 --- --- 1.0 --- --- 1 --- 1.0 --- 1.0 1.0 1.0 1.0 0.0 3 Riffle Length (ft)------ --- ------ --- 6 --- --- 18 --- --- 8 --- 24 10 22 21 39 8 39 Riffle Slope (ft/ft)------ --------- --------- --------- ------ --- --- 0.00 1.03 0.77 3.17 0.84 39 Pool Length (ft)------ --------- ---5 --- ---42 --- ---7 ---57 8 4443751339 Pool Max depth (ft)--- --- --- --- --- --------- --------- ------ --- --- --- --- --- --- --- --- Pool Spacing (ft)------ --------- ---18 --- ---64 --- ---24 --- 87 38 66 62 103 16 38 Channel Beltwidth (ft)--- --- --- --- --- --- 26.2 --- --- 55.5 --- --- 39 --- 71 --- --- --- --- --- --- Radius of Curvature (ft)--- --- --- --- --- --- 13.5 --- --- 103.3 --- --- 32 --- 87 --- --- --- --- --- --- Rc:Bankfull width (ft/ft)--- --- --- --- --- --- 1 --- --- 6.9 --- --- 1.7 --- 4.1 --- --- --- --- --- --- Meander Wavelength (ft)--- --- --- --- --- --- 49.4 --- --- 66 --- --- 80 --- 104 --- --- --- --- --- --- Meander Width Ratio --- --- --- --- --- --- 3.6 --- --- 4.4 --- --- 2.1 --- 5 --- --- --- --- --- --- Reach Shear Stress (competency) lb/f2 Max part size (mm) mobilized at bankfull Stream Power (transport capacity) W/m2 Rosgen Classification Bankfull Velocity (fps) --- --- --- Bankfull Discharge (cfs) --- --- --- Valley length (ft) Channel Thalweg length (ft) Sinuosity (ft) Water Surface Slope (Channel) (ft/ft) Channel slope (ft/ft) 3Bankfull Floodplain Area (acres) 4% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other Shaded cells indicate that these will typically not be filled in. 1 = The distributions for these parameters can include information from both the cross-section measurements and the longitudinal profile. 2 = For projects with a proximal USGS gauge in-line with the project reach (added bankfull verification - rare). 3. Utilizing XS measurement data produce an estimate of the bankfull floodplain area in acres, which should be the area from the top of bank to the toe of the terrace riser/slope. 4 = Proportion of reach exhibiting banks that are eroding based on the visual survey for comparison to monitoring data; 5. Of value/needed only if the n exceeds 3 0.0035 --- --- --------- 1.05 1.14 1.05 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 0.0041 0.004 1.05 0.0068 0.004 0.0035 --- 2378 279 2560 --- 2504 318 2686 --- --- --- --- --- ------ E4 E4 E4/E5 E4/E5 Profile Pattern Transport parameters Additional Reach Parameters Table 8. Baseline Stream Data Summary Scout Mitigation Site - Reach HC3 Regional Curve Pre-Existing Condition Reference Reach(es) Data Design Monitoring Baseline Base MY1 MY2 MY3 MY5 MY7 MY+Base MY1 MY2 MY3 MY5 MY7 MY+Base MY1 MY2 MY3 MY5 MY7 MY+Base MY1 MY2 MY3 MY5 MY7 MY+Base MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA1 723.2 723.4 723.3 723.4 723.1 723.1 723.1 723.2 720.1 720.3 720.3 720.2 720.1 720.1 720.1 720.1 717.8 717.8 717.8 717.9 Bankfull Width (ft)1 22.2 22.3 19.8 20.5 20.4 19.5 18.0 22.9 20.0 21.9 19.4 22.3 23.2 25.8 22.1 21.8 22.3 23.9 25.7 21.2 Floodprone Width (ft)1 ------->64.9 >65.1 >65.1 >64.9 >65.1 >65.1 >64.8 >64.9 -------------- Bankfull Max Depth (ft)2 4.0 3.5 3.3 3.4 2.5 2.6 2.2 2.5 2.7 2.4 2.4 2.9 4.2 2.0 3.9 4.3 3.7 3.7 3.6 3.8 Low Bank Elevation (ft)723.17 723.4 722.8 723.2 723.1 723.1 722.7 723.1 720.1 720.1 720.0 720.2 720.1 720.1 720.1 720.2 717.8 717.8 717.8 717.9 Bankfull Cross Sectional Area (ft2)2 45.4 44.8 35.2 41.8 33.7 33.9 26.2 30.2 38.9 34.8 33.4 37.0 50.9 50.9 47.8 51.4 44.6 44.0 42.5 43.1 Bankfull Entrenchment Ratio1 ------->3.2 >3.3 >3.3 >2.8 >3.3 >3.0 >3.3 >2.9 -------------- Bankfull Bank Height Ratio1 -------1.0 1.0 1.0 0.9 1.0 0.9 0.9 1.0 -------------- Base MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation (ft) - Based on AB-XSA1 717.8 717.9 717.8 717.8 Bankfull Width (ft)1 20.6 19.3 19.2 19.7 Floodprone Width (ft)1 >64.9 >65.0 >64.8 >64.8 Bankfull Max Depth (ft)2 2.7 2.7 2.7 2.7 Low Bank Elevation (ft)717.8 717.8 717.7 717.7 Bankfull Cross Sectional Area (ft2)2 38.4 37.1 36.4 38.4 Bankfull Entrenchment Ratio1 >3.1 >3.4 >3.4 >3.3 Bankfull Bank Height Ratio1 1.0 1.0 1.0 1.0 1 - Uses the as-built cross sectional area as the basis for adjusting each subsequent years bankfull elevation 2 - Uses the current years low top of bank as the basis for adjusting each subsequent years bankfull elevation Appendix D. Table 9 - Monitoring Data - Dimensional Morphology Summary (Dimensional Parameters – Cross Sections) Project Name: Scout Cross Section 1 (Pool)Cross Section 2 (Riffle)Cross Section 3 (Riffle)Cross Section 4 (Pool)Cross Section 5 (Pool) Cross Section 6 (Riffle) Appendix E Hydrology Data Table 10. 2023 Rainfall Summary Month Average Normal Limits Project Location Precipitation* 30 Percent 70 Percent September (2022) 4.32 2.73 5.21 3.95 October (2022) 3.27 1.96 3.94 1.70 November (2022) 3.18 1.71 3.89 2.45 December (2022) 3.72 2.55 4.44 1.61 January 3.64 2.62 4.30 3.81 February 3.32 2.35 3.93 3.55 March 3.83 2.64 4.56 2.55 April 3.96 2.52 4.77 4.51 May 3.89 2.55 4.68 2.40 June 4.27 3.13 5.01 4.57 July 4.90 3.51 5.79 11.10 August 4.44 3.09 5.28 - Total Annual ** 46.74 31.36 55.80 42.20 Above Normal Limits Below Normal Limits WETS Station: Yadkinville, NC. Approximately 13 miles from the site. *Project Location Precipitation is a location-weighted average of surrounding gauged data retrieved by the USACE Antecedent Precipitation Tool. Gauges used include Elkin, King, Yadkinville 6 E. **Total Annual represents the average total precipitation, annually, as calculated by the 30-year period. Table 11. Documentation of Geomorphically Significant Flow Events MY0/1 2020 1 1.28 MY1 2021 0 N/A MY2 2022 2 0.23 MY3 2023 0 N/A MY0/1 2020 10 1.77 MY1 2021 5 0.98 MY2 2022 2 0.88 MY3 2023 4 1.30 MY0/1 2020 1 217 217 5/28/2020-12/31/2020 MY1 2021 1 257 257 1/1/2021-9/14/2021 MY2 2022 1 59 59 1/1/2022-3/1/2022 MY3 2023 1 63 63 6/6/2023 - 8/9/2023 MY0/1 2020 9 53 114 9/12/2020-11/3/2020 MY1 2021 11 75 140 7/1/2021-9/14/2021 MY2 2022 1 233 233 1/1/2022-8/23/2022 MY3 2023 1 342 342 9/1/2022 - 8/9/2023 Flow Gauge CH1 Flow Gauge CH2 11/11/2020 N/A 12/22/2022 N/A Flow Gauge CH1 11/11/2020 8/18/2021 2/3/2022 6/23/2023 Year Number of Flow Events Maximum Consecutive Flow Days Maximum Cummlative Flow Days Maximum Consecutive Flow Date Range Year Number of Bankfull Events Maximum Bankfull Height (ft)Date of Maximum Bankfull Event Stage Recorder HC3 0 1 2 3 4 5 6 St a g e ( f t ) 2023 Scout HC3 Stage Recorder Graph 0.000 1.000 2.000 3.000 4.000 5.000 6.000 -2 -1 0 1 2 3 4 St a g e ( f t ) Date 2023 Scout CH1 Flow Gauge Graph Daily Precip (in)FG CH1 Downstream Riffle Elevation Top of Bank63 Days Consecutive Flow 6/6/2023 ‐8/9/2023 63 Days Consecutive Flow 6/6/2023 ‐8/9/2023 0.000 1.000 2.000 3.000 4.000 5.000 6.000 -2 -1 0 1 2 3 4 St a g e ( f t ) Date 2023 Scout CH2 Flow Gauge Graph Daily Precip (in)FG CH2 Downstream Riffle Elevation 342 Days of Consecutive Flow 9/1/2022 ‐8/9/2023 342 Days Consecutive Flow 9/1/2022 ‐8/9/2023