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HomeMy WebLinkAbout20171295 Ver 1_Year 1 Monitoring Report 2021_20210929ID#* 20171295 Version* 1 Select Reviewer:* Erin Davis Initial Review Completed Date 09/30/2021 Mitigation Project Submittal - 9/29/2021 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* V Stream r Wetlands r- Buffer r- Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Matt Butler Project Information ..................................................................................................................................................................... ID#:* 20171295 Existing IDY Project Type: r DMS r Mitigation Bank Project Name: Scout Stream Mitigation Site County: Yadkin Document Information Email Address:* mbutler@res.us Version: *1 Existing Version Mitigation Document Type:* Mitigation Monitoring Report File Upload: Scout MY1 Monitoring Report 2021.pdf 6.51 MB Rease upload only one RDFcf the conplete file that needs to be subnitted... Signature Print Name:* Matt Butler Signature:* fires September 23, 2021 Mr. Steve Kichefski U.S. Army Corps of Engineers Regulatory Division 151 Patton Ave. Room 208 Asheville, NC 28801-5006 3600 Glenwood Avenue. Suite ioo Raleigh, NC 27612 Corporate Headquarters 6575 West Loop South, Suite 300 Bellaire, TX 77401 Main: 713.520.5400 RE: Scout Year 1 Monitoring Report (SAW-2017-01469 I RES Yadkin 01 Umbrella Mitigation Bank) Dear Mr. Kichefski, Please find attached the Scout Year 1 Monitoring Report. In Year 1, nine of the 10 vegetation plots met the 320 stems per acre success criteria. Stem densities ranged from 162 to 1,255. Multiple events were recorded in 2020 and 2021 on the stage recorder on CH1 and one bankfull event was documented on the stage recorder on HC3 in 2020. The flow gauge on CH1 measured 217 consecutive flow days in 2020 and 257 consecutive flow days in 2021. The flow gauge on CH2 measured 53 consecutive flow days in 2020 and 75 consecutive flow days in 2021. One problem area onsite includes a 0.36-acre low stem density area in and around Vegetation Plot 4 which will be replanted this dormant season. Additional maintenance work in MY1 included supplemental planting in January and one minor bank erosion repair also in January. RES is requesting a 10% stream credit release (291.8 SMUs) for the completion of the MY1 report. Please see enclosed the credit release timeline and an updated credit ledger. Thank you, FIZ4�AVIIL Ryan Medric I Ecologist res. us SCOUT STREAM MITIGATION SITE DAVIE COUNTY, NORTH CAROLINA RES YADKIN 01 UMBRELLA MITIGATION BANK SAW-2017-01469 YEAR I MONITORING REPORT Provided by: fires Bank Sponsor: Environmental Banc & Exchange, LLC An entity of Resource Environmental Solutions 3600 Glenwood Ave, Suite 100 Raleigh, NC 27612 919-209-1056 September 2021 Table of Contents 1.0 Project Summary..................................................................................................................................... I 1.1 Project Location and Description.............................................................................................. I 1.2 Project Goals and Objectives.................................................................................................... I 1.3 Project Success Criteria............................................................................................................. 2 StreamSuccess Criteria................................................................................................................... 2 VegetationSuccess Criteria............................................................................................................. 3 1.4 Project Components.................................................................................................................. 3 1.5 Stream Design/Approach.......................................................................................................... 3 1.6 Construction and As -Built Conditions...................................................................................... 4 1.7 Monitoring Performance (MY 1)............................................................................................... 4 Vegetation........................................................................................................................................ 4 StreamGeomorphology................................................................................................................... 5 StreamHydrology............................................................................................................................ 5 2.0 Methods.................................................................................................................................................. 5 3.0 References............................................................................................................................................... 6 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 Stream and Vegetation Problem Areas 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 Geomorphologv Data MY1 Cross -Section Plots Table 8. MY Stream Data Summary Table 9. Cross Section Morphology Data Table Appendix E: Hydrology Data Table 10. 2021 Rainfall Summary Table 11. Documentation of Geomorphically Significant Flow Events MY2 Stream Flow Hydrographs Scout Year 1 Monitoring Report Stream Mitigation Site September 2021 1.0 Proiect Summary L I 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 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. Scout 1 Year 1 Monitoring Report Stream Mitigation Site September 2021 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. 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 Scout 2 Year 1 Monitoring Report Stream Mitigation Site September 2021 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 did not 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. 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 (CHI 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 Scout 3 Year 1 Monitoring Report Stream Mitigation Site September 2021 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 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 CHI — This reach is a tributary on the western side of HC3 and flows east. This reach totals 348 linear feet of Enhancement IL 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 IL 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 Performan ce (MY]) Vegetation Monitoring of the seven fixed vegetation plots and three random plots was completed during September 2021. Vegetation data are in Appendix C, associated photos are in Appendix B, and plot locations are in Appendix B. MY1 monitoring data indicates that nine out of 10 plots are exceeding the interim success criteria of 320 planted stems per acre. Planted stem densities ranged from 162 to 1,255 with average of 745 across all plots. A total of 15 species were documented within the plots. Volunteer species were noted in five of the plots. The average stem height across all vegetation plots was 2.5 feet. Scout 4 Year 1 Monitoring Report Stream Mitigation Site September 2021 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 January 2021. The supplemental planting included about 715 bareroot trees around Vegetation Plot 2 and 4. However, Vegetation Plot 4 (0.36 acres) will be supplemental planted again this winter to increase diversity due to the high density of willow volunteers. Stream Geomorphology Geomorphology data for MY was collected during July 2021. 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 show 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. A few areas of bank erosion were observed in early 2021 however only one needed repair. The right bank of HC3 just downstream of Vegetation Plot 2 was repaired by hand in January 2021. The repair included grading back the bank, adding a coir log, then matting and planting the bank. 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 CHI and CH2 to track the frequency and duration of stream flow events. Additionally, the flow gauge on CHI is being used to document bankfull events. Stream hydrology data from 2020 and 2021 are included in this report. In 2020, the stage recorder on HC3 recorded one bankfull event and the stage recorder on CHI recorded 10 bankfull events. In 2021, the stage recorder on HC3 recorded zero bankfull events and the stage recorder on CHI recorded five bankfull events. In 2020, the flow gauge on CHI recorded 217 consecutive flow days and the flow gauge on CH2 recorded 53 consecutive flow days. In 2021, the flow gauge on CHI recorded 257 consecutive flow days and the flow gauge on CH2 recorded 75 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 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. Scout 5 Year 1 Monitoring Report Stream Mitigation Site September 2021 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. Scout 6 Year 1 Monitoring Report Stream Mitigation Site September 2021 Appendix A Background Tables ul C N O Q E O U c m ul 41 0) O m C� C O U N r-I a E E m m w w 0 o o m m w w o o o U U 0 0 X w � � € € N w m a a o 0 0 a o " o axi axi oo Tn Tn m U U Q O Q N LL O O Y (O O O O N 6 O Om d O m U R cCONo�v o o 0 0 m O 00 O O Y z z w d J O (6 w O W W w Ir g O >E >E >E � U 0 co cCOo co 0 r�i� o � � N _m d � O O U LL Q m v V m co N O m m (6 L (6 N W O U w Q N U S U w U U O d O i a Table 2. Project Activity and Reporting History Scout Mitigation Site Elapsed Time Since grading complete: 1 year 4 months Elapsed Time Since planting complete: 1 year 4 months Number of reporting Years: 1 Activity or Deliverable Data Collection Complete Completion or 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: Se -21 Sep-21 Year 2 Monitoring Year 3 Monitoring Year 4 Monitoring Year 5 Monitoring Year 6 Monitoring Year 7 Monitoring = The number of reports or data points produced excluding the baseline Table 3. Project Contacts Table 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 lRyan Medric (919) 741-6268 Vegetation Monitoring POC JRyan Medric (919) 741-6268 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 Physiographic Province Southern Outer Piedmont River Basin Yadkin USGS Hydrologic Unit 8-digit 3040101 USGS Hydrologic Unit 14-digit 3040101160010 DWR Sub -basin 03-07-02 Project Drainage Area (Acres and Square Miles) 810 ac (1.266 mil) Project Drainage Area Percentage of Impervious Area 2% CGIA Land Use Classification Agriculture (49%), Residential (8%), Forest (39%), Impervious (2%) Reach Summary Information Parameters HC3 CH 1 CH2 Length of reach (linear feet) (designed) 2,686 348 110 Valley confinement (Confined, moderately confined, unconfined) Drainage area (Acres) 810 43 156 Perennial, Intermittent, Ephemeral P I I NCDWR Water Quality Classification Stream Classification (existing) E4 E4/5b E4 Stream Classification (proposed) E4/E5 E4/5b E4 Evolutionary trend (Simon) (existing) FEMA classification Regulatory Considerations Parameters Applicable? Resolved? Supporting Docs? Water of the United States - Section 404 Yes Yes SAW-2017- 01469 Water of the United States - Section 401 Yes Yes DWR #17- 1295 Endangered Species Act Yes Yes Mit Plan Historic Preservation Act Yes Yes Mit Plan Coastal Zone Management Act (CZMA or CAMA) No N/A N/A FEMA Floodplain Compliance Yes N/A Mit Plan Essential Fisheries Habitat No N/A N/A set G,e BM I a A a Redfield Y O. X. �a a C 3 0 0 x A. 9a Sparks Rd K o x m y 9 x Triple H TO Legend Scout Easement "` DMS Mockingbird Easement - DMS Catbird Easement - DMS Hauser Creek Easement a Service Area - HUC 03040101 A TLW- HUC 03040101160010 Figure 1 - Site Location Map Date: 8/24/2020 Drawn by: HKH Scout Mitigation Site res Checked by: XXX 0 500 1,000 Davie County, North Carolina 1 inch = 1,000 feet Feet Appendix B Visual Assessment Data Scout MYl Vegetation Monitoring Plot Photos Vegetation Plot 1 (9/14/2021) Vegetation Plot 3 (9/14/2021) Vegetation Plot 2 (9/14/2021) Vegetation Plot 4 (9/14/2021) Vegetation Plot 5 (9/14/2021) Vegetation Plot 6 (9/14/2021) Vegetation Plot 7 (9/14/2021) Random Vegetation Plot 1 (9/14/2021) Random Vegetation Plot 2 (9/14/2021) Random Vegetation Plot 3 (9/14/2021) Stream Problem Areas Scout Feature Issue / Location Photo N/A N/A Vegetation Problem Areas Scout Feature Category / Location / Size Photo Low Stem Density Area / VP4 / 0.36 acres hsr Appendix C Vegetation Plot Data Appendix C. Vegetation Assessment Data Table 5. Planted Species Summary Crab Apple Scientific Name Mitigation 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 ni ra 15 10 1,600 Sycamore Platanus occidnetalis 15 10 1,600 Yellow Poplar briodendron tuli i era 10 8 1,100 Persimmon Diospyros vir iniana 5 7 1,000 Crab Apple Malus an usti olia 0 5 800 Green Ash Fraxinus pennsylvanica 10 5 700 Black Walnut Ju lans ni ra 0 3 400 Sugarberry Celtis laevi ata 0 2 350 S 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 N ssa S lvatica 5 0 0 Total 14,750 Planted Area 10.9 As -built Planted Stems/Acre 1,353 Table 6. Vegetation Plot Mitigation Success Summary Plot # Planted Stems/Acre Volunteer Stems/Acre Total Stems/Acre Success Criteria Met? Average Planted Stem Height (ft) 1 486 2023 2509 Yes 2.7 2 324 0 324 Yes 1.9 3 850 162 1012 Yes 1.5 4 162 607 769 No 3 5 688 0 688 Yes 3.3 6 1416 243 1659 Yes 1.8 7 607 81 688 Yes 3.4 R1 607 0 607 Yes 3.4 R2 1052 0 1052 Yes 2.5 R3 1255 0 1255 Yes 2.4 Project Avg 745 312 1056 Yes 2.5 :) %\ : Fi `7 §- ))` 77 k)2 2 u\\ \,§°\ 77 :) 2- `$ !! 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R e / ^ 0 | coll « qg / 2 \ 2 / k � � \ \ \ \ © @ 2 \ A $ 6 6 = 3 0 @ \ g d e \ 5 § ¥ ~ z 3 » \ \ \ z § 2 = 2 Q / k \ § Appendix E Hydrology Data Table 10. 2021 Rainfall Summary Mont Average Normal Limits Yadkinville Station Precipitation 30 Percent 70 Percent January 3.89 2.80 4.59 3.22 February 3.49 2.41 4.16 5.82 March 4.66 3.21 5.55 4.25 April 3.56 2.22 4.31 1.97 May 4.31 2.90 5.16 2.40 June 3.93 2.26 4.78 3.00 July 4.10 2.93 4.85 5.83 August 3.33 2.36 3.95 6.56 September 4.00 2.33 4.86 2.87 October 3.69 2.11 4.45 --- November 3.13 2.35 3.65 --- December 3.54 2.29 4.26 --- Total 45.63 30.17 54.57 35.92 Above Normal Limits Below Normal Limits Table 11. Documentation of Geomorphically Significant Flow Events Year Number of Bankfull Events Maximum Bankfull Height (ft) Date of Maximum Bankfull Event Stage Recorder HO MYO/12020 1 1.28 11/11/2020 MYl 2021 0 N/A N/A Flow Gauge CHI MYO/12020 10 1.77 11/11/2020 MYl 2021 5 0.98 8/18/2021 1WNumber of Flow Events Maximum Consecutive Flow Da s Maximum Cummlative Flow Da s Maximum Consecutive Flow Date Range Flow Gauge CHI MYO/1 2020 1 217 217 5/28/2020-12/31/2020 MY1 2021 1 257 257 1/1/2021-9/14/2021 Flow Gauge C112 MYO/1 2020 9 53 114 9/12/2020-11/3/2020 MY1 2021 11 75 140 7/1/2021-9/14/2021 lull Ile;uleb , N , 1 1 1 1 1 1 1 1 1 1 1 N � N s a 1 1 1 1 1 1 1 1 ca L � N 0 1 1 O 1 1 3 v o 1 u_ 1 I E ' 1 N_ 1 � O �y}Li ' ' U r 1 1 1 1 d ' c 0 IA V 3 1 , 1 c N U o 1 co 0 1 1 N 1 I O N ' ' O N � ' � N 1 1 r C G ' 1 1 1 1 1 1 1 1 1 1 � 1 1 1 1 1 1 1 1 1 1 1 1 1 1 LL � N n M N O (u) y;daa aa;eM lull Ile;uleb N N W N s a LN 0 L O L,L I m c E N L � o s N 2 i i U � i a � R � 0 IA 3 W N U 0 W LL ++ 7 0 co I O N O N � N G W N W N (u) y;daa aa;eM lull Ile;uleb 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 rn s 1 1 1 1 1 1 1 1 1 1 � CL 1 L' 0 L ' � � 1 1 3 1 I o 1 o � L� 1 2 u N 1 N 1 1 1 U 1 ,(Q V 1 3 1 o u_ I1 ' coi r 1 1 1 1 1 1 1 1 1 1 1 M N 1 1 1 1 1 1 1 1 1 1 1 (u) y;daa aa;eM lull Ile;uleb rn s a L 0 I 0 0 R L u (n H I N 2 t c I d aT IT 7 R 3 o u_ I 0 co N (u) y;daa aa;eM