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Home My WebLink About20171291 Ver 1_Year 1 Monitoring Report_20220203 Mitigation Project Information Upload ID#* 20171291 Version* 1 Select Reviewer:* Erin Davis Initial Review Completed Date 02/03/2022 Mitigation Project Submittal - 2/3/2022 ...................................................................................................................................................................................................................................................................................................................................................................................................... Is this a Prospectus,Technical Proposal or a New Site?* 0 Yes O No Type of Mitigation Project:* Stream Wetlands Buffer Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Email Address:* Ryan Medric rmedric@res.us Project Information ................................................................................................................................................................................................................................................................................................................................................................................................... ID#:* 20171291 Version:* 1 Existing ID# Existing Version Project Type: DMS Mitigation Bank Project Name: Gideon County: Surry Document Information ...................................................................................................................................................................................................................................................................................................................................................................................................... Mitigation Document Type:* Mitigation Monitoring Report File Upload: RES Yadkin 05 Gideon MY1 Report.pdf 11.72MB Please upload only one PDF of the complete file that needs to be submitted... Signature ...................................................................................................................................................................................................................................................................................................................................................................................................... Print Name:* Ryan Medric Signature:* Ole 360o Glenwood Avenue.Suite too Ores Raleigh,NC 27612 Corporate Headquarters 6575 West Loop South,Suite 300 Bellaire,TX 7740t Main:713.520.540o January 24, 2022 Mr. Steve Kichefski U.S. Army Corps of Engineers Regulatory Division 151 Patton Ave. Room 208 Asheville, NC 28801-5006 RE: Gideon Year 1 Monitoring Report (SAW-2017-01462 I RES Yadkin 01 Umbrella Mitigation Bank) Dear Mr. Kichefski, Please find attached the Gideon Year 1 Monitoring Report. In Year 1, all four vegetation plots met the 320 stems per acre success criteria.The average planted stems per acre was 1,032 and the average planted stem height was 2.1 feet. Cross section plots were stable when compared to as-built conditions. No bankfull events were recorded on the stage recorders and the flow gauge documented 244 consecutive days of flow. The three wetland gauges recorded hydroperiods in the range of five to 97 percent. Below are IRT comments included in the As-Built credit release letter on September 30, 2021 and RES' responses: 1. During the IRT As-Built site visit on August 26, 2021 several areas of bank erosion were noted along MC2-A, especially the downstream portion. RES committed to repairing these areas during the dormant season. These areas were repaired in November 2021. Photos are in Appendix B. 2.Areas of bank erosion and bar formation were noted along MC2-B just below MC2-A. Track the condition of this area in MY1. This area did not we ,n in MY1 and RES will continue to track it's condition in MY2. 3.There was low live stake survival/vigor noted along JN6-C which RES was going to address with supplemental planting during the dormant season. RES still plans to add livestakes to this reach this dormant season. 4. The IRT was concerned about the lack of overbank flow evidence along the floodplain of MC2- A despite the multiple large storm events mentioned since construction was completed in the spring. It'll be important to document bankfull events with the gauge data, and supplemental photos may also be helpful. Bankfull events were not recorded on either stage recorders or were visual signs of out of bank events observed. RES will continue to keep a close eye on this in subsequent monitoring years and, if needed, will add cameras to help capture events. RES is requesting a 10% stream credit release (291.127 SMUs) for the completion of the Year 1 Monitoring Report. Please see enclosed the credit release timeline and an updated credit ledger. Thank you, Ryan Medric I Project Manager Wilmington District Mitigation Bank Credit Release Schedule Project Name: Gideon Stream Mitigation Project County: Surly Sponsor Name: EBX 8-Digit HUC: 3040101 USACE Action ID: SAW-2017-01462 Year Project Instituted: 2019 NCDWQAction ID: Date Prepared: 2/3/2022 Total Potential Credits Stream Credits Forested Wetland Credits Non-Forested Credit Classification Wetland Credits Warm Cold Riparian Riparian Cool Water Non-Riparian Coastal Water Water Riverine Non-Riverine Potential Credits from Mitigation Plan 2,962.067 Potential Credits from As-Built Survey 2,962.067 Current and Future Credit Releases Stream Credits Forested Wetland Credits Non-Forested Wetland Credits Projected Actual Release Credit Release Milestone Scheduled Warm WQ Scheduled Riparian Riparian Scheduled Release Date Date Cool Water Non-Riparian Coastal Releases Water SMUs Releases Riverine Non-Riverine Releases 1(Bank/Site Establishment)1'2 15% 487.490 15% 15% 12/31/2019 2/19/2020 2(Year 0/As-Built)3 15% 436.690 15% 15% 6/30/2021 9/30/2021 3(Year 1 Monitoring) IliP% 291.127 10% 10% Ilir/2022 4(Year 2 Monitoring) 10% 291.127 10% 15% 5(Year 3 Monitoring) 10% 291.127 15% 20% 6(Year 4 Monitoring) 5% 145.564 5% 10% 7(Year 5 Monitoring) 10% 291.127 15% 15% 8(Year 6 Monitoring) 5% 145.563 5% NA NA 9(Year 7 Monitoring) 10% 291.126 10% NA NA Stream Bankfull Standard 10% 291.126 NA NA NA NA NA NA Varies4 Total Credits Release to Date I I 924.180 I I I Contingencies(if any): Signature of Wilmington District Official Approving Credit Release Date 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. 4-A 10%reserve of credits to be held back until the bankfull event performance standard has been met. RES YADKIN 01 UMBRELLA MITIGATION BANKING INSTRUMENT GIDEON STREAM CREDIT LEDGER(HUC 03040101) Thursday,September 30,2021 Transaction Credits Released Credits Debited Current Credits Number To Bank From Bank Credit Balance Reserved Purchaser Project Permit Number Date HUC 1 487.490 Credits Released:Task 1 2/19/20 2 436.690 Credits Released:Task 2 9/30/21 Total 924.180 0.000 924.180 0.000 YEAR 1 MONITORING REPORT GIDEON MITIGATION SITE YADKIN COUNTY,NORTH CAROLINA USACE Action ID: SAW-2017-01462 1 DWR Project#17-1291 RES YADKIN 01 UMBRELLA MITIGATION BANK e 4 �a Provided by: res Bank Sponsor: Environmental Banc& Exchange,LLC An entity of Resource Environmental Solutions 3600 Glenwood Ave, Suite 100 Raleigh,NC 27612 919-209-1056 February 2022 Table of Contents 1.0 Project Summary 1 1.1 Project Location and Description 1 1.2 Project Goals and Objectives 1 1.3 Project Success Criteria 2 Stream Restoration Success Criteria 2 Vegetation Success Criteria 3 1.4 Project Components 3 1.5 Stream Design/Approach 3 1.6 Construction and As-Built Conditions 5 1.7 Year 1 Monitoring Performance (MY1) 5 Vegetation 5 Stream Geomorphology 5 Stream Hydrology 6 Wetland 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 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 Table 8. Baseline Stream Data Summary Table 9. Cross Section Morphology Data Table Cross Section Overlay Plots Appendix E: Hydrology Table 10. Rainfall Summary Table 11. Documentation of Geomorphically Significant Flow Events Stream Flow Hydrographs Table 12. 2021 Max Hydroperiod Table 13. Summary of Groundwater Monitoring Results Groundwater Hydrographs 1.0 Project Summary 1.1 Project Location and Description The Gideon Project ("Project") is located within a rural watershed in Surry County, North Carolina approximately 10 miles north of Elkin. Water quality stressors affecting the Project included livestock production, agricultural practices, and lack of riparian buffer. The Project presents stream restoration, enhancement,and preservation,generating 2,962.067 Cool Stream Mitigation Units(SMU). The Project's total easement area is 11.23 acres within the overall drainage area of 3,225 acres.The Project is between two separate portions of the Division of Mitigation Services(DMS)Little Sebastian Site.While each site could be developed independently of the other, the combined easements will result in a much larger contiguous protected corridor and high-quality aquatic habitat. The Little Sebastian Site has a total easement area that is approximately 25.90 acres and presents 8,068 LF of stream restoration,enhancement, and preservation. Therefore,a total of 37.13 acres and 12,850 LF of stream will be protected in perpetuity when combining the totals on Little Sebastian and Gideon. Grazing livestock have historically had access to most stream reaches within the Project. The lack of riparian buffer vegetation, deep-rooted vegetation, and unstable channel characteristics have contributed to the degradation of stream banks throughout the Project area. The stream design approach for the Project was to combine 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 has been constructed and planted and will be monitored on a regular basis throughout the seven- year post-construction monitoring period, or until performance standards are met. The Project 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. Funding will be supplied by the responsible party on a yearly basis until such time an endowment is established. 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. These goals and objectives reflect those stated in the Gideon Project Final Mitigation Plan. 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 Gideon Mitigation Site 1 Year 1 Monitoring Report Surry County,NC February 2022 • 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 goals were addressed through the following project objectives: • Designed and reconstructed stream channels sized to convey bankfull flows that maintain a stable dimension, profile, and planform based on modeling, watershed conditions, and reference reach conditions; • Permanently excluded livestock from stream channels and their associated buffers; • 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 30 feet on both sides of the channel along the Project reaches with a hardwood riparian plant community; • Treated exotic invasive species; and • Established a permanent conservation easement on the Project. Functional uplift, benefits, and improvements within the Project area, as based on the Function Based Framework,are outlined in the Final Mitigation Plan. 1.3 Project Success Criteria The success criteria for the Project follows the 2016 USACE Wilmington District Stream and Wetland Compensatory Mitigation Update, the Gideon Final Mitigation Plan, and subsequent agency guidance. Cross section and vegetation plot monitoring takes place in Years 0, 1,2,3,5,and 7. Stream hydrology and visual monitoring takes place annually. Specific success criteria components are presented below. Stream Restoration 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.For C/E channels,bank height ratio shall not exceed 1.2, and the entrenchment ratio shall be no less than 2.2 within restored reaches. For B channels,bank height ratio shall not exceed 1.2,and the entrenchment ratio shall be no less than 1.4 within restored reaches. 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 Gideon Mitigation Site 2 Year 1 Monitoring Report Surry County,NC February 2022 images over time should indicate successional maturation of riparian vegetation. Stream restoration reaches will be monitored to document intermittent or seasonal surface flow. This will be accomplished through direct observation and the use of stream gauge transducers with data loggers. Reaches must demonstrate a minimum of 30 consecutive days of flow. Vegetation Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the Project will follow IRT Guidance. The interim measures of vegetative success for the Project will be the survival of at least 320 planted three-year old trees per acre at the end of Year 3,five-year old frees at six feet in height at the end of Year 5,and the final vegetative success criteria will be 210 trees per acre with an average height of eight feet at the end of Year 7.Volunteer trees will be counted,identified to species, and included in the yearly monitoring reports,but will not be counted 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 will be shown in the monitoring table but will not be used to demonstrate success. 1.4 Project Components The Project area is comprised of a single 11.23-acre easement location along Mill Creek and three unnamed tributaries,totaling 4,782 LF,which eventually drain into the Yadkin River. Through stream restoration, enhancement, and preservation, the Project presents 4,782 LF of proposed stream, generating 2,962.067 Cool SMUs. The stream mitigation components are summarized below. Mitigation credits presented below are based upon the Approved Mitigation Plan. Mitigation Approach Linear Feet Ratio Base Cool SMU Restoration 2,283 1 2,283.000 Enhancement I 493 1.5 328.667 Enhancement III 1,498 5 299.600 Preservation 508 10 50.800 Total 4,782 2,962.067 1.5 Stream Design/Approach The stream component of the Project included priority I stream restoration, enhancement I, enhancement III, and preservation. Stream restoration incorporated the design of a single-thread meandering channel, with parameters based on data taken from reference sites,published empirical relationships,regional curves developed from existing project streams,and NC Regional Curves.Analytical design techniques were also a crucial element of the project and were used to determine the design discharge and to verify design stability. The following stream treatment was performed on the Project reach: Reach JN4-A An enhancement III approach was used for the reach to address eroded banks and channel entrenchment. Enhancement activities included: Gideon Mitigation Site 3 Year 1 Monitoring Report Surry County,NC February 2022 - Livestock exclusion; and - Riparian planting. Reach JN4-B An enhancement I approach was used for the reach to address eroded banks and channel entrenchment. Enhancement activities included: - Removal of pipe in channel and fixing of current culvert; - Installing log and rock structures to provide grade control and habitat; - Establishing a riffle-pool sequence throughout the reach; - Installing brush toe protection on meander bends; - Livestock exclusion; and - Riparian planting. Reach JN5 An enhancement I approach was used for the reach to address eroded banks and channel entrenchment. Enhancement activities included: - Installing log and rock structures to provide grade control and habitat; - Establishing a riffle-pool sequence throughout the reach; - Installing brush toe protection on meander bends; - Livestock exclusion; and - Riparian planting. Reach JN6-A A preservation approach was used for the reach to address eroded banks and channel entrenchment. Preservation activities included: - Livestock exclusion; and - Riparian planting. Reach JN6-B An enhancement III approach was used for the reach to address eroded banks and channel entrenchment. Enhancement activities included: - Livestock exclusion; and - Riparian planting. Reach JN6-C An offline priority I restoration approach was used for the reach to address eroded banks and channel entrenchment. Restoration activities included: - Re-grading a new single thread channel in the existing floodplain; - Installing log and rock structures to provide grade control and habitat; - Establishing a riffle-pool sequence throughout the reach; - Installing brush toe protection on meander bends; - Filling the existing channel; - Livestock exclusion; and - Riparian planting. Reach MC2-A An offline priority I restoration approach was used for the reach to address eroded banks and channel entrenchment. Restoration activities included: - Re-grading a new single thread channel in the existing floodplain; - Installing log and rock structures to provide grade control and habitat; - Establishing a riffle-pool sequence throughout the reach; Gideon Mitigation Site 4 Year 1 Monitoring Report Surry County,NC February 2022 - Installing brush toe protection on meander bends; - Filling the existing channel; - Livestock exclusion; and - Riparian planting. Reach MC2-B An enhancement III approach was used for the reach to address eroded banks and channel entrenchment. Enhancement activities included: - Livestock exclusion; and - Riparian planting. 1.6 Construction and As Built Conditions Stream construction was completed in February 2021 and planting was completed in March 2021. The Gideon Project was built to design plans and guidelines with no significant changes during construction. The as-built survey and record drawings are included in Appendix E. Planting plan changes included replacing blackgum (Nyssa sylvatica) and elderberry (Sambucus canadensis)with sugarberry(Celtis laevigata)and buttonbush(Cephalanthus occidentalis).These changes were based on bare root availability.A planted species summary is included in Appendix C. 1.7 Monitoring Performance (MY1) The Gideon Year 1 monitoring activities were performed in November 2021.All baseline monitoring data is present below and in the appendices. The Project is on track to meeting vegetation, stream,and wetland interim success criteria. Vegetation Monitoring of four fixed vegetation plots was completed in November 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 all plots are exceeding the interim success criteria of 320 planted stems per acre.Planted stem densities ranged from 486 to 1,376 planted stems per acre with a mean of 1,032 planted stems per acre across all plots. A total of 12 species were documented within the plots. Volunteer species were noted in all plots and are expected to establish further in upcoming years. The average stem height in the plots was 2.1 feet. Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. The stream banks along JN6-C displayed low livestake vigor and will undergo supplemental livestake planting during MY2.A few small,sparse areas of Chinese privet were treated along JN6-C and JN4-B in December 2021. Future problem areas will be treated as needed. Stream Geomorphology Geomorphology data for MY1 was collected during November 2021, approximately eight months after baseline monitoring. Summary tables and cross section plots are in Appendix D. Overall,the Year 1 cross sections and profile relatively match the proposed design. The MY1 conditions show that shear stress and velocities have been reduced for the restoration reach. The reach was designed as a coarse gravel to cobble bed channel and remain classified as a coarse gravel to cobble bed channel post-construction. Gideon Mitigation Site 5 Year 1 Monitoring Report Surry County,NC February 2022 Visual assessment of the stream channel was performed to document signs of instability, such as eroding banks, structural instability, or excessive sedimentation. A few small areas of bank erosion along MC2-A were repaired in November 2021; photo documentation can be found in Appendix B. The channel is transporting sediment as designed and will continue to be monitored for aggradation and degradation. Stream Hydrology Two stage recorders(on MC2-A and JN6-C)and one flow gauge(on JN6-B)were installed in March 2021 and document bankfull events and flow days,respectively.Neither stage recorder documented any bankfull events during MYO and MY1; however, RES expects to see an increase in bankfull events in future monitoring years. The flow gauge documented one flow event, lasting 244 days. All recorded streams are on track to pass hydrology metrics. Stream hydrology data is included in Appendix E.Gauge locations can be found on Figure 2 and photos are in Appendix B. Since neither bankfull events nor visual signs of out of bank events were observed on either stage recorder, RES will continue to keep a close eye on this in subsequent monitoring years and, if needed, will add cameras to help capture events. Wetland Hydrology Three groundwater wells with automatic recording pressure transducers were installed in March 2021.The goal of the groundwater wells is to track the hydrology of the jurisdictional wetlands on site post- construction. There is no hydroperiod success criteria for these groundwater wells. During MY1 groundwater well 1 (GW1)had a 5%hydroperiod,groundwater well 2(GW2)had a 97%hydroperiod,and groundwater well 3 (GW3)had a 40%hydroperiod. Wetland hydrology data can be found in Appendix E and gauge locations can be found on Figure 2. 2.0 Methods Stream cross section 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 10 cross-sections. Survey data were imported into CAD, ArcGIS®,and Microsoft Excel®for data processing and analysis.The stage recorders include an automatic pressure transducer placed in PVC casing in a pool. The elevation of the bed and top of bank at each stage recorder are used to detect bankfull events. Vegetation success is being monitored at four fixed monitoring plots. 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 to be taken from the origin each monitoring year. Wetland hydrology is monitored to track the hydrology of the jurisdictional wetlands on site post- construction.This is accomplished with three automatic pressure transducer gauges(located in groundwater wells) that record daily groundwater levels. One automatic pressure transducer is installed above ground for use as a barometric reference. Gauges are downloaded quarterly and wetland hydroperiods are calculated during the growing season. Gauge installation followed current regulatory guidance. Visual observations of primary and secondary wetland hydrology indicators are also recorded during quarterly site visits. Gideon Mitigation Site 6 Year 1 Monitoring Report Surry County,NC February 2022 3.0 References Griffith,G.E.,J.M.Omernik,J.A. Comstock,M.P. Schafale,W.H.McNab,D.R.Lenat,T.F.MacPherson, J.B. Glover,and V.B. Shelburne. (2002). Ecoregions of North Carolina and South Carolina, (color Poster with map,descriptive text, summary tables,and photographs): Reston,Virginia, U.S. Geological Survey(map scale 1:1,500,000). 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). Gideon Final Mitigation Plan. Schafale,M.P. 2012. Guide to the Natural Communities of North Carolina,Fourth Approximation.North Carolina Natural Heritage Program,Division of Parks and Recreation,NCDENR,Raleigh,NC. USACE. (2016). Wilmington District Stream and Wetland Compensatory Mitigation Update.NC: Interagency Review Team(IRT). Gideon Mitigation Site 7 Year 1 Monitoring Report Surry County,NC February 2022 Appendix A Background Tables Table 1. Gideon Project - Mitigation Assets and Components Existing Mitigation As-Built Migitation Restoration Mitigation Mitigation Project Segment Footage or Plan Footage Category Level Priority Level Ratio(X:1) Plan Credits Footage or Comments Acreage or Acreage Acreage JN4-A 213 213 Cool EIII 1 5.00000 42.600 213 Livestock exclusion&planting JN4-B 249 249 Cool El 1 1.50000 166.000 249 Structures,livestock exclusion, &planting JN5 262 244 Cool El 1 1.50000 162.667 244 Structures,livestock exclusion, &planting JN6-A 508 508 Cool P 1 10.00000 50.800 508 Livestock exclusion&planting JN6-B 707 707 Cool EIII 1 5.00000 141.400 707 Livestock exclusion&planting JN6-C 956 1,239 Cool R 1 1.00000 1239.000 1239 Full channel restoration,livestock exclusion, &planting MC2-A 1,109 1,044 Cool R 1 1.00000 1044.000 1044 Full channel restoration,livestock exclusion, &planting MC2-B 578 578 Cool EIII 1 5.00000 115.600 578 Livestock exclusion&planting Project Credits Stream Riparian Non-rip Coastal Restoration Level Wetland Wetland Marsh Warm Cool Cold Restoration 2283.000 Re-establishment Rehabilitation Enhancement Enhancement I 328.667 Enhancement II Enhancement III 299.600 Creation Preservation 50.800 NSBW TOTALS 2,962.067 Table 2. Project Activity and Reporting History Gideon Mitigation Project Elapsed Time Since grading complete: 10 months Elapsed Time Since planting complete: 10 months Number of reporting Years : 1 Data Collection Completion or Activity or Deliverable Complete Delivery Restoration Plan NA Jun-19 Final Design — Construction Plans NA Sep-20 Stream Construction NA Mar-21 Site Planting NA Mar-21 As-built (Year 0 Monitoring — baseline) Jan-21 Jun-21 Year 1 Monitoring Nov-21 Jan-22 Stream Bank Repairs (MC2-A) - Nov-21 Invasive Treatment - Dec-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 Gideon Mitigation Project Designer RES / 3600 Glenwood Ave., Suite 100, Raleigh, NC 27612 Primary project design POC A. Frasier Mullen, PE Construction Contractor KBS Earthwork Inc. / 5616 Coble Church Rd., Julian, NC 27283 Construction contractor POC Kory Strader Survey Contractor Ascension Land Surveying, PC /116 Williams Road, Mocksville, NC 27028 Survey contractor POC Chris Cole, PLS Planting Contractor Shenandoah Habitats Planting contractor POC David Coleman Monitoring Performers RES / 3600 Glenwood Ave, Suite 100, Raleigh, NC 27612 Monitoring POC Emily Ulman (910-274-8231) Table 4. Project Background Information Project Name Gideon County Surly Project Area(acres) 11.23 Project Coordinates(latitude and longitude) 36.39659. -80.85833 Planted Acreage(Acres of Woody Stems Planted) 4.26 Project Watershed Summary Information Physiographic Province 45e- Northern Inner Piedmont River Basin Yadkin USGS Hydrologic Unit 8-digit I 03040101 USGS Hydrologic Unit 14-digit 03040101080020 DWR Sub-basin 03-04-01 Project Drainage Area(Acres and Square Miles) 3,191 Project Drainage Area Percentage of Impervious Area <1% Reach Summary Information Parameters JN4-A JN4-B JN5 Length of reach(linear feet) 213 249 244 Drainage area(Acres) 37 39 198 Perennial, Intermittent, Ephemeral P P P Little Sebastian .'' Mitigation Site Tr co 0 a g o Winsto •a )1011.---- o Legend Lenoir II Conservation Easement n e•viile rlY Morganton i Little Sebastian Mitigation Site Brooktord j 4lisbury W Gideon Mitigation Site ' sv le L _ Service Area 03040101 s°",, a. TLW- 03040101080020 try Date: 5/31/21 Figure 1 -Site Location Map g. w+E Drawn by: RTM Gideon Mitigation Site r Ps Checked by:BPB 0 500 1,000 Surry County, North Carolina 1 inch=1,000 feet Feet Appendix B Visual Assessment Data -4:1 Pres , .. \ K+ _ e ;, ,�wk ' e I - ` -�' R, .,- r A. ‘,. 34.d -- -1,;:,-- . Drys a`y l �V y• I l fi; J Y ,' - • _1 , co r� �t ` '! t ji. a f A,�i r •�. -.1.,t! •�C; �.'. 3 ;< .w1t� ir.. ,S, `-.y} .,f '>Y''�'Y.r'` ,j�, � — ! �� .`�' 'k� � a S r<* 'fit re.. A. 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A ,_ • ' `w Groundwater Well 3 Groundwater Well 1 :2'1'4-, ''.'"--.--- — ' 4plik;''''.; - ,,,„ ,.,L, ,,,,.....:72.,, ,,,,,,,t?,.....,„ ;,,,._ .,...," : ,-',.-'i.,-,N,.,,..J.,,,:x:,i1,,,....% ,4 ,.a _' ti, ,' r t i Yee y Y "✓ yam s - a ,, R4 ,,,-' -' '4,7'4V . ,, , r Groundwater Well 2 Gideon Crossing Photos (11/18/2021) 'fib !:-. S d• 7 . - - .�0 1', -' k*,'-..-'-'1-. '.4,-4f ,, - %fix Y et �,- !' 4 , :„ ,,., .,, ........'_ „,,.',. ...., — • 4 r' �' ...._,u._, • ..• �y Mom"' a,i' % G if k¢ # w. 'l x Y ;t �� 1� M1 zr a": AgQa -.R S'"cl - '77- '�. fit. xt _}° , a�4- � ��r� �� - � ��ti$e�: �+, � T `xf��` � )�c��ry t` �s �N� fr - I/J `,yl S .^5: ^�'G "t. i ,f ..t R .- y Crossing on JN6-C(Looking Upstream) Crossing on JN6-C (Looking Downstream) . I ..: I it-3GideonBankRepairs -9,}•r'fT7 ayr, 6 k'� rrt a Aaw • Before (8/23/2021) After(2/1/2022) # ' '- { i • • vitro:p .'°- °' -( r4jey ' ' F•'r'.•" f� fig-, dq - - a- . d: 3 =�Y S` .s•'„i_ #' f. �k +. • }�' , - � � � � � _ .m� §._�. ' �� r' w �`, ,g, �, r ., ,ate,`-sN;• ' F Before (8/23/202 I) After(2/1/2022) ,'; �'%• 5 'Sys i, vl A,.4*,.?5�:5 .. If V i �. C J _ i..y t i r .F •i,4 f F 4•":•.-;'' ?,-',..4....• -4:-V.241•4-r4— S4---•''''.:.''''.'•47,,,,"A:.;-:''''..,' """ , ' ' ,,ii _,--- ,.. _:.......,_ ?' IE b • _Y _ F1. 2 _ 7_ y.•] • 1. ,r y, • a a .wut K 5. . cT 1-. II t' _ s ' { P- ,t �,.J� A V' M1 ' •+G �Y�t}r.i.! t._ d{ �F � • c-~[r .� - _ � • �i4 ram' Before (8/23/2021) After(2/1/2022) Appendix C Vegetation Plot Data Appendix C. Vegetation Plot Data Table 5. Planted Species Summary Common Name Scientific Name Mit Plan % As-Built % Total Stems Planted Willow Oak Quercus phellos 15 15 700 River Birch Betula nigra 15 15 700 Water Oak Quercus nigra 15 14 700 Northern Red Oak Quercus rubra 10 10 500 Yellow Poplar Liriodendron tulipifera 10 10 500 Sycamore Platanus occidentalis 10 10 500 Sugarberry Celtis laevigata 0 10 500 Buttonbush Cephalanthus occidentalis 0 6 300 Persimmon Diospyros virginiana 5 6 300 Green Ash Fraxinus pennsylvanica 10 4 200 Elderberry Sambucus canadensis 5 0 0 Nyssa sylvatica Blackgum 5 0 0 Total 4,900 Planted Area 4.26 As-built Planted Stems/Acre 1,150 Table 6. Vegetation Plot Mitigation Success Summary Averaged Success Planted Volunteer Total Planted Plot# Criteria Stems/Acre Stems/Acre Stems/Acre Stem Met? Height(ft) 1 1133 243 1376 Yes 2.5 2 1376 40 1416 Yes 2.2 3 1133 40 1174 Yes 1.9 4 486 40 526 Yes 1.7 Project Avg 1032 91 1123 Yes 2.1 Appendix C. Vegetation Plot Data Table 7. Stem Count Total and Planted by Plot Species Gideon Current Plot Data(MY12021) Annual Means 001-01-0001 001-01-0002 001-01-0003 001-01-0004 MY1(2021) MVO(2021) 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 Betula nigra river birch Tree 10 10 11 1 1 1 10 10 10 21 21 22 20 20 20 Celtis laevigata sugarberry Tree 1 1 1 4 4 4 1 1 1 6 6 6 7 7 7 Cephalanthus occidentalis common buttonbush Shrub 3 3 3 3 3 3 3 3 3 Diospyros virginiana common persimmon Tree 1 1 1 1 1 1 2 2 2 Fraxinus pennsylvanica green ash Tree 2 2 2 2 2 2 1 1 1 3 3 3 8 8 8 7 7 7 Hamamelis virginiana American witchhazel Tree 3 1 4 Liquidambarstyraciflua sweetgum Tree 1 1 Liriodendron tulipifera tuliptree Tree 1 1 1 2 2 2 4 4 4 7 7 7 9 9 9 Platanus occidentalis American sycamore Tree 11 11 11 3 3 3 3 3 3 17 17 17 18 18 18 Quercus nigra water oak Tree 2 2 2 1 1 1 3 3 3 5 5 5 Quercus phellos willow oak Tree 1 1 3 8 8 8 7 7 8 4 4 4 20 20 23 20 20 20 Quercus rubra northern red oak Tree 3 3 3 9 9 9 3 3 3 1 1 1 16 16 16 17 17 17 Stem count 28 28 34 34 34 35 28 28 29 12 12 13 102 102 111 108 108 108 size (ares) 1 1 1 1 4 4 size (ACRES) 0.02 0.02 0.02 0.02 0.10 0.10 Species count 6 6 7 10 10 11 8 8 8 4 4 5 10 10 12 10 10 10 Stems per ACRE 1133 1133 1376 1376 1376 1416 1133 1133 1174 486 486 526 1032 1032 1123 1093 1093 1093 Appendix D Stream Measurement and Geomorphology Data Table 8. Baseline Stream Data Summary Gideon Mitigation Site -Reach MC2-A Parameter Gauge2 Regional Curve Pre-Existing Condition Reference Reach(es)Data Design Monitoring Baseline Dimension and Substrate-Riffle Only LL UL Eq. Min Mean Med Max SDb n Min Mean Med Max SDb n Min Med Max Min Mean Med Max SDb n Bankfull Width(ft) --- --- --- --- --- 17.4 --- --- 1 5.2 11.4 --- 17.5 --- 2 --- 23.0 --- 22.5 22.7 22.7 22.9 0.3 2 Floodprone Width(ft) --- --- 50.0 --- --- 1 >30 51.3 --- 72.5 --- 2 --- >50 --- 65.0 65.0 65.0 65.0 0.0 2 Bankfull Mean Depth(ft) --- --- --- --- --- 1.8 --- --- 1 0.6 1.1 --- 1.6 --- 2 --- 2.4 --- --- --- --- --- --- --- 'Bankfull Max Depth(ft) --- --- 2.9 --- --- 1 0.8 1.7 --- 2.5 --- 2 --- 3.2 --- 3.0 3.1 3.1 3.3 0.2 2 Bankfull Cross Sectional Area(ft2) --- --- --- --- --- 30.6 --- --- 1 3.0 15.4 --- 27.7 --- 2 --- 54.4 --- 46.7 49.8 49.8 53.0 4.4 2 Width/Depth Ratio --- --- 10.0 --- --- 1 8.9 10.0 --- 11.1 --- 2 --- 9.7 --- --- --- --- --- --- --- Entrenchment Ratio --- --- 2.9 --- --- 1 >4 4.2 --- 4.3 --- 2 --- >2.2 --- 2.8 2.9 2.9 2.9 0.1 2 'Bank Height Ratio --- --- 1.0 --- --- 1 1.0 1.1 --- 1.2 --- 2 --- 1.0 --- 1.0 1.0 1.0 1.0 0.0 2 Profile Riffle Length(ft) --- --- --- --- --- --- 3.5 --- --- 17.9 --- --- 10 --- 41 17 33 34 52 12 10 Riffle Slope(ft/ft) --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 0.01 2.0 2.0 4.0 1.1 10 Pool Length(ft) --- --- --- --- --- --- 3 --- --- 16 --- --- 6 --- 25 35 59 61 74 13 10 Pool Max depth(ft) --- --- --- --- --- --- --- --- --- --- --- --- -- --- --- --- --- --- --- --- --- Pool Spacing(ft) --- --- --- --- --- --- 12 --- --- 68 --- --- 41 --- 108 51 92 94 123 19 10 Pattern Channel Beltwidth(ft) --- --- --- --- --- --- 15 --- --- 85 --- --- 56 --- 135 56 --- --- 135 --- --- Radius of Curvature(ft) --- --- --- --- --- --- 6 --- --- 54 --- --- 21 --- 86 21 --- --- 86 --- --- Rc:Bankfull width(ft/ft) --- --- --- --- --- --- 0.9 --- --- 3.7 --- --- 0.9 --- 3.7 0.9 --- --- 3.7 --- --- Meander Wavelength(ft) --- --- --- --- --- --- 23 --- --- 105 --- --- 106 --- 167 106 --- --- 167 --- --- Meander Width Ratio --- --- --- --- --- --- 2.4 --- --- 8.3 --- --- 2.4 --- 5.9 2.4 --- --- 5.9 --- --- Transport parameters Reach Shear Stress(competency)lb/f2 --- --- --- Max part size(mm)mobilized at bankfull -- Stream Power(transport capacity) W/m2 --- -- Additional Reach Parameters Rosgen Classification E3 E3/E4b E3 E3 Bankfull Velocity(fps) --- --- --- --- -- Bankfull Discharge(cfs) --- --- --- --- -- Valley length(ft) 1109 202/146 478 478 Channel Thalweg length(ft) 1288 230/185 542 542 Sinuosity(ft) 1.16 1.14/1.27 1.13 1.13 Water Surface Slope(Channel)(ft/ft) --- -- Channel slope(ft/ft) 0.008 1.2/1.3 0.009 0.009 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 tilled in. l=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 then exceeds 3 Table 8. Baseline Stream Data Summary Gideon Mitigation Site -Reach JN6-C Parameter Gauge2 Regional Curve Pre-Existing Condition Reference Reach(es)Data Design Monitoring Baseline Dimension and Substrate-Riffle Only LL UL Eq. Min Mean Med Max SDb n Min Mean Med Max SDb n Min Med Max Min Mean Med Max SDb n Bankfull Width(ft) --- --- --- --- --- 5.9 --- --- 1 5.2 11.4 --- 17.5 --- 2 --- 6.2 --- 6.8 7.0 7.0 7.2 0.3 2 Floodprone Width(ft) --- --- 19.6 --- --- 1 >30 51.3 --- 72.5 --- 2 --- --- 16.2 33.1 33.1 50.0 23.9 2 Bankfull Mean Depth(ft) --- --- --- --- --- 0.9 --- --- 1 0.6 1.1 --- 1.6 --- 2 --- 0.8 --- --- --- --- --- --- --- 'Bankfull Max Depth(ft) --- --- 1.8 --- --- 1 0.8 1.7 --- 2.5 --- 2 --- 1.0 --- 0.4 0.8 0.8 1.1 0.5 2 Bankfull Cross Sectional Area(ft2) --- --- --- --- --- 5.6 --- --- 1 3.0 15.4 --- 27.7 --- 2 --- 4.7 --- 1.4 3.2 3.2 5.0 2.5 2 Width/Depth Ratio --- --- 6.3 --- --- 1 8.9 10.0 --- 11.1 --- 2 --- 8.2 --- --- --- --- --- --- --- Entrenchment Ratio --- --- 3.3 --- --- 1 >4 4.2 --- 4.3 --- 2 --- >2.2 --- 2.4 4.7 4.7 6.9 3.2 2 'Bank Height Ratio --- --- 1.0 --- --- 1 1.0 1.1 --- 1.2 --- 2 --- 1.0 --- 1.0 1.0 1.0 1.0 0.0 2 Profile Riffle Length(ft) --- --- --- --- --- --- 3.5 --- --- 17.9 --- --- 4 --- 21 6 12 11 30 5 27 Riffle Slope(ft/ft) --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 0.10 2.1 2.1 5.4 1.4 27 Pool Length(ft) --- --- --- --- --- --- 3 --- --- 16 --- --- 3 --- 11 3 14 14 28 6 26 Pool Max depth(ft) --- --- --- --- --- --- --- --- --- --- --- --- -- --- --- --- --- --- --- --- --- Pool Spacing(ft) --- --- --- --- --- --- 12 --- --- 68 --- --- 14 --- 42 9 27 25 63 10 26 Pattern Channel Beltwidth(ft) --- --- --- --- --- --- 15 --- --- 85 --- --- 18 --- 42 18 --- --- 42 --- --- Radius of Curvature(ft) --- --- --- --- --- --- 6 --- --- 54 --- --- 7 --- 20 7 --- --- 20 --- --- Rc:Bankfull width(ft/ft) --- --- --- --- --- --- 0.9 --- --- 3.7 --- --- 1.1 --- 3 1.1 --- --- 3 --- --- Meander Wavelength(ft) --- --- --- --- --- --- 23 --- --- 105 --- --- 27 --- 51 27 --- --- 51 --- --- Meander Width Ratio --- --- --- --- --- --- 2.4 --- --- 8.3 --- --- 4.4 --- 42 4.4 --- --- 42 --- --- Transport parameters Reach Shear Stress(competency)lb/f2 --- --- --- Max part size(mm)mobilized at bankfull -- Stream Power(transport capacity) W/m2 --- -- Additional Reach Parameters Rosgen Classification E4b E3/E4b E3/4 E3/4 Bankfull Velocity(fps) --- --- --- --- -- Bankfull Discharge(cfs) --- --- --- --- -- Valley length(ft) 791 202/146 645 645 Channel Thalweg length(ft) 922 230/185 736 736 Sinuosity(ft) 1.17 1.14/1.27 1.14 1.14 Water Surface Slope(Channel)(ft/ft) --- -- Channel slope(ft/ft) 0.024 1.2/1.3 0.012 0.012 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 tilled in. l=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 then exceeds 3 Appendix D. Table 9 -Monitoring Data-Dimensional Morphology Summary (Dimensional Parameters-Cross Sections) Project Name: Gideon Cross Section 1(Riffle) Cross Section 2(Pool) Cross Section 3(Pool) Cross Section 4(Riffle) Cross Section 5(Riffle) 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-XSA' 1144.8 1144.7 1144.7 1144.9 1139.7 1139.7 1139.4 1139.3 1145.4 1145.4 Bankfull Width(ft)1 22.5 21.3 - - - - 22.9 21.5 5.6 5.3 Floodprone Width(ft)1 >65 >65 - - - - >65 >64.5 9 8.9 Bankfull Max Depth(ft)2 3.0 3.4 4.8 5.1 4.8 5.3 3.3 3.8 0.9 2.0 Low Bank Elevation(ft) 1144.78 1144.7 - - - - 1139.4 1139.4 1145.4 1146.5 Bankfull Cross Sectional Area(ft2)2 46.7 48.7 58.4 56.2 62.3 60.1 53.0 56.0 3.3 11.3 Bankfull Entrenchment Ratios >2.9 >3.1 - - - - >2.8 >3 1.6 1.7 Bankfull Bank Height Ratios 1.0 1.0 - - - - 1.0 1.0 2.3 2.2 Cross Section 6(Riffle) Cross Section 7(Riffle) Cross Section 8(Pool) Cross Section 9(Riffle) Cross Section 10(Pool) 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-XSAI 1137.1 1137.4 1145.2 1145.2 1145.2 1145.3 1135.2 1135.2 1134.8 1135.0 Bankfull Width(ft)1 8.3 9.3 7.2 7.4 - - 6.8 7.3 - - Floodprone Width(ft)1 31.8 34.7 >50 >50.2 - - 16.2 16.8 - - Bankfull Max Depth(ft)2 2.0 2.6 1.1 1.0 1.9 1.6 0.4 0.4 0.4 0.8 Low Bank Elevation(ft) 1137.1 1138.2 1145.2 1145.2 - - 1135.2 1135.3 - - Bankfull Cross Sectional Area(ft2)2 10.1 19.2 5.0 4.6 10.4 9.1 1.4 2.2 1.4 4.4 Bankfull Entrenchment Ratios 3.2 3.7 >6.9 >6.8 - - 2.4 2.3 - - Bankfull Bank Height Ratios 1.6 1.5 1.0 1.0 - - 1.0 1.3 - - 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 I I 'aa�tr r • `,xyr t Y =off. k a yam. ��. � rs" �' Upstream Downstream Gideon-Reach MC2-A-Cross Section 1 -Riffle -Restoration 1149 1148 1147 1146 1145 IIMIleganimmm LI L•i•L Y•i•L Y•i•L•L 11•i• •21 Y•1•L•LY•i•LY•i•L•L LI• LY•i•L L > 1144 t11 1143 1142 1141 1140 , 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 Distance(ft) MY0 2020 MY1 2021 — — —Approx.Bankfull Floodprone Area Low Bank Height 3X rtical Exaggeration Cross Section 1 (Riffle) MY0 MY1 MY2 MY3 MY5 MY7 MY Bankfull Elevation(ft)-Based on AB-XSA 1144.78 1144.7 Bankfull Width(ft)1 22.5 21.3 Floodprone Width(ft)1 >65 >65 BankfullMaxDepth(ft)2 3.0 3.4 Low Bank Elevation(ft) 1144.78 1144.7 Bankfull Cross Sectional Area(ft2)2 46.7 48.7 Bankfull Entrenchment Ratio 1 >2.9 >3.1 Ban kfull Bank Height Ratios 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 � •S,4. r Upstream Downstream Gideon -Reach MC2-A-Cross Section 2-Pool -Restoration 1147 1146 1145 rs:Ter.rs rs.s.r.rs.s.r. .s.ra rs.s.r.rs ewer.ss rs.s.r.rs.s.r.ss . . :ter. .a l4rwrR! - 1144 ° 1143 w 1142 1141 1140 1139 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 Distance(ft) —MVO 2020 • —MY1 2021 — — —Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 2 .(Pool) MY0 MY1 MY2 MY3 MY5 MY7 MY� Bankfull Elevation(ft)-Based on AB-XSA1 1144.73 1144.9 Bankfull Width(ft)1 - - Floodprone Width(ft)1 - - Bankfull Max Depth(ft)2 4.8 5.1 Low Bank Elevation(ft) - - Bankfull Cross Sectional Area(ft2)2 58.4 56.2 Bankfull Entrenchment Ratio1 - - Ban kfull Bank HeightRatiol - - 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 .7147,511 I "ik , • 5 1' • • Upstream Downstream Gideon -Reach MC2-A-Cross Section 3-Pool-Restoration 1142 1141 1140 R• R•Pt•7S rr. en.T• •T•R•Pi•'R•r•re•In or•R•Pt•79 R• • • • • • •n.PT•re•In•T•re 1139 1138 1137 1136 1135 1134 1133 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 Distance(ft) MVO 2020 • —MY1 2021 — — -Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 3 (Pool) MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSAl 1139.67 1139.7 Bankfull Width(ft)1 - - Floodprone Width(ft)1 - - Bankfull Max Depth(ft)2 4.8 5.3 Low Bank Elevation(ft) - - Bankfull Cross Sectional Area(ft2)2 62.3 60.1 Bankfull Entrenchment Ratio' - - Bankfull Bank Height Ratio 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 K R § . A fir 4 1, v ,,„ I a7` • fi,H, + r c'4 .' 1M, �7� E� ' ,rs I d J 1 y h7 (- :‘. T-a x o e > ` 9 , N� rat " *�1� � + ,.: - ry'a�_ ¢0 lirt illitin Upstream Downstream Gideon -Reach MC2-A-Cross Section 4-Riffle-Restoration 1143 1142 1141 $ 1140 ° 1139 w 1138 1137 1136 1135 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 Distance(ft) MVO 2020 — - ,MY1 2021 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 4 (Riffle) MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 1139.45 1139.3 Bankfull Width(ft)' 22.9 21.5 Floodprone Width(ft)1 >65 >64.5 Bankfull Max Depth(ft)2 3-3 3.8 Low Bank Elevation(ft) 1139.45 1139.4 Bankfull Cross Sectional Area(ft2)2 53.0 56.0 Bankfull Entrenchment Ratio' >2.8 >3 Bankfull Bank Height Ratio 1 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 ';,t'z'',. :.! ...•y, t tp r 'Y a t� n ' i y +rk it ^x y�. ' .� at ''. - , _i�� ik'r ):`7y`. } . q a - �.' Grp ' • , p 1, - f,• --i,,a 2 Upstream Downstream Gideon Reach JN4-B -Cross Section 5-Riffle-Enhancement I 1150 1149 1148 - Z. 4 1147 '6 t11 1146 - 1145 1144 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MY0 2020 MY1 2021 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exacyleration Cross Section 5 (Riffle) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA1 1145.38 1145.4 Bankfull Width(ft)1 5.6 5.3 Floodprone Width(ft)1 9 8.9 Ban kfull Max Depth(ft)2 0.9 2.0 Low Bank Elevation(ft) 1145.38 1146.5 Bankfull Cross Sectional Area(ft2)2 3-3 11.3 Bankfull Entrenchment Ratio' 1.6 1.7 Bankfull Bank Height Ratio' 2.3 2.2 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 { }, �6" ,'Y}A a.� ay '14 ,may,'�• u� r�+ff91' llff'La x°� �#r` +d d�" / �'.. G?. �� w. d r h � x Upstream Downstream Gideon -Reach JN5-Cross Section 6-Riffle-Enhancement I 1141 1140 1139 ° 1138 1137 1136 1135 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MVO 2020 MY1 2021 — — —Approx.Bankfull Floodprone Area Low Bank Elevation 3X Vertical Exac geration Cross Section 6 (Riffle) MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 1137.06 1137.4 Bankfull Width(ft)' 8.3 9.3 Floodprone Width(ft)1 31.8 34.7 Bankfull Max Depth(ft)2 2.0 2.6 Low Bank Elevation(ft) 1137.06 1138.2 Bankfull Cross Sectional Area(ft2)z 10.1 19.2 Bankfull Entrenchment Ratio' 3.2 3.7 Bankfull Bank Height Ratio 1 1.6 1.5 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 µrx • i1 y As: 6 s I t * a + AL- • z 7 !' Upstream Downstream Gideon -Reach JN6-C-Cross Section 7-Riffle-Restoration 1149 1148 1147 ° 1146 1145 1144 1143 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) —MVO 2020 MY1 2021 — — —Approx.Bankfull Floodprone Area -Low Bank Elevation ax vaniral Fv geration Cross Section 7 (Rife) MY0 MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA1 1145.18 1145.2 Bankfull Width(ft)1 7.2 7.4 Floodprone Width(ft)1 >50 >50.2 Bankfull Max Depth(ft)2 1.1 1.0 Low Bank Elevation(ft) 1145.18 1145.2 Bankfull Cross Sectional Area(ft2)2 5.0 4.6 Bankfull Entrenchment Ratio' >6-9 >6.8 Bankfull Bank Height Ratio 1 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 A w 9 i 'it,,,tig--"i',.!,:-.4:11-00;,74,;,, '',,1 ''''..., ''',34.'I': '''i'-,''',,,- - %. .,•,,,:<?1,44,4*,4.p41-,i.7,,*7(,,'.0.1;4:4-'''''',; .";,-i;t4f!''' 7::":',';';''''''' $ Wri'I'7''''''''' ''.''''''''''' 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''' '-' yt4r! ."C'k.'"A4....:'',.?.'.,<1 Upstream Downstream Gideon -Reach JN6-C -Cross Section 8-ruui -Restoration 1149 1148 1147 S 1146 0 a) w 1144 1143 1142 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MYO 2020 MY1 2021 — — —Approx.Bankfull -----Low Bank Elevation 3X Vertical Exaggeration Cross Section 8(Pool) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSAl 1145.22 1145.3 Bankfull Width(ft)t - - Floodprone Width(ft)1 - - Bankfull Max Depth(ft)2 1.9 1.6 Low Bank Elevation(ft) - - Bankfull Cross Sectional Area(ft2)2 10.4 9.1 Bankfull Entrenchment Ratio 1 - - Bankfull Bank Height Ratio 1 - - 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 i4 Y Nuri ,"N r , ) l l'Il lit , � " tl^w "Sv �E t ,ll t tl t.' ,ieS �F�- � ••441&-.1 q Yr . ��L." r ' w.e w �* v"ti-R: .,� i k '^^--.---.— _ ,_ -_ .. Bar t - it. 1, "-.."7 i:,... " ,, " .4.;., , -' ., ..,,e. ' Upstream Downstream Gideon -Reach JN6-C-Cross Section 9-Riffle -Restoration 1140 1139 1138 c ° 1137 w 1136 1 ••• ••135 1134 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MY0 2020 MY1 2021 — — —Approx.Bankfull — —Floodprone Area Low Bank Elevation 3X Vertical Exaggeration Cross Section 9 (Riffle) MYO MY1 MY2 MY3 MY5 MY7 MY+ Bank full Elevation(ft)-Based on AB-XSAt 1135.24 1135.2 Bankfull Width(ft)1 6.8 7.3 Floodprone Width(ft)1 16.2 16.8 Bankfull Max Depth(ft)2 0.4 0.4 Low Bank Elevation(ft) 1135.24 1135.3 Bankfull Cross Sectional Area(ft2)2 1.4 2.2 Bankfull Entrenchment Ratio' 2.4 2.3 Bankfull Bank Height Ratio 1 1.0 1.3 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 ,� 4 i r hj ,,w '" 3`^i#f s a§o g •1 , 1 ,t _ ,.,.„,...•,:4:.1.,, ..s _I:44.14. .,... ii..ii,1:-_, , . ' '','Is re.,:".,'-. '! 'f.4-; .:rift.t44,14-,:ii.e.._. - .- . ... , rv' £ Upstream Downstream Gideon-Reach JN6-C -Cross Section 10-Pool-Restoration 1140 1139 1138 ° 1137 ut 1136 ...- 1134 , 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 Distance(ft) MVO 2020 MY1 2021 — — —Approx.Bankfull Low Bank Elevation 3X Vertical Exaggeration Cross Section 10(Pool) MYO MYl MY2 MY3 MY5 MY7 MY+ Bankfull Elevation(ft)-Based on AB-XSA' 1134.79 1135.0 Bankfull Width(ft)t - - Floodprone Width(ft)' - - Bankfull Max Depth(ft)2 0.4 0.8 Low Bank Elevation(ft) - - Bankfull Cross Sectional Area(ft2)2 1.4 4.4 Bankfull Entrenchment Ratio' - - Bankfull Bank Height Ratio' - - 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 E Hydrology Table 10.2021 Rainfall Summary Normal Limits Raven Knob Station Month Average 30 Percent 70 Percent Precipitation January 3.99 2.78 4.80 2.58 February 3.14 2.12 3.76 3.88 March 4.19 2.95 4.97 5.07 April 4.29 2.88 5.13 1.95 May 4.53 3.09 5.53 2.46 June 4.95 3.39 5.90 5.98 July 5.24 3.71 6.20 6.61 August 4.69 3.46 5.85 8.82 September 4.26 3.06 5.05 2.39 October 3.54 2.19 4.26 3.24 November 3.44 2.17 4.15 0.48 December 4.20 3.03 4.91 --- Total 50.46 34.83 60.51 43.46 Above Nominal Limits Below Normal Limits Note:Raven Knob CRONOS Station is approximately 6 miles north of the site Table 11. Documentation of Geomorphically Significant Flow Events Number of Bankfull Maximum Bank full Year Events Height(ft) Date of Maximum Bankfull Dent Stage Recorder JN6-C MY12021 0 - - Stage Recorder MC2-A MY12021 0 - - �Year Number of F1owL�ents Maximum Consecutive Maximum Cummlative Maximum Consecutive How Days How Days How Date Range Flow Gauge JN6-B MY12021 1 244 244 I 3/19/2021-11/18/2021 MY1 2021 Gideon Flow Gauge JN6-B Stream Flow Hydrograph 15 244 Days - 14 A - 13 12 - 11 - 10 t c a 9 - o Ts c :: - 8 Ws g - 7 ct 6 - 5 / 4 • VI r 3 itfil i� "III o imotlir - 2 1 o -1.t, it , I 1 11 1tI II 1 rl. l , l I ,�i t I ,i a1, - 0 3/19/21 4/19/21 5/19/21 6/19/21 7/19/21 8/19/21 9/19/21 10/19/21 Months Rain —JNG-B Depth ——— JN6-B DS Riffle Bed Table 12. 2021 Max Hydroperiod (Growing Season 3-Apr through 30-Oct, 210 days) Consecutive Cumulative Well ID Occurrences Da s Hydroperiod Da s Hydro penod y (%) • (%) GW1 11 5 62 30 12 GW2 205 97 210 100 2 GW3 84 40 128 61 12 Table 13. Summary of Groundwater Monitoring Results Gideon Hydroperiod(%) Well ID Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 (2021) (2022) (2023) (2024) (2025) (2026) (2027) GW1 5 GW2 97 GW3 40 MY1 2021 Gideon GW1 2Growing Season ► 12.0 Apr 3-Oct 30 (210 Days) - 11.0 - 10.0 1 - - 9.0 48 a, u_LL - 8.0 c to i 0 _ cu 1 \ I 11)1 r \r........ - 7.0 u > r i i . W I - 6.0 0 L l 73 -1 - - 1 1 - 5.0 5 J OL \\p.m,. \\_,- Ilk— 14,....1 - 4.0 a C9 1- \....... \ 3.0 -2 - - 2.0 - 1.0 -3 0.0 3/5/2021 4/5/2021 5/5/2021 6/5/2021 7/5/2021 8/5/2021 9/5/2021 10/5/2021 11/5/2021 Months Mt.Airy Daily Rainfall -GW1 MY1 2021 Gideon GW2 2 — 12.0 Growing Salon 1 Apr 3-Oct 30 (21 Days) - 11.0 - 10.0 1 — 9.0 48 a) a)LL - 8.0 c to O a) - 7.0 v > c a) El0firr-41 /1"." - -11. ",._"...„..1./1-, ., 1" �` r 6.0 0 (.\ L + 1 nt co L \\4\ 1 - 5.0 ,2- c a) m L \ L ,r,1\1 - 4.0 a C9 -1 , 3.0 - 2.0 - 1.0 -2 0.0 3/5/2021 4/5/2021 5/5/2021 6/5/2021 7/5/2021 8/5/2021 9/5/2021 10/5/2021 11/5/2021 Months Mt.Airy Daily Rainfall GW2 MY1 2021 Gideon GW3 2 - 12.0 Growing Season41111 Apr 3-Oct 30 (210 Days) - 11.0 - 10.0 1 - 9.0 48 a) a)LL - 8.0 c to O a) - 7.0 v > c a) W 0 - 6.0 0 Lam _ T ( Ir i - 5.0 .2- 13 o clityloilssillyhot l/ ` r _ 4.0 a 0 \\\1411 ki j lli Iciiiii)Ili:16) -1 i iiiiiiiiii \sof \inti \1/411114.4c„.k. • 3.0 - 2.0 - 1.0 -2 0.0 3/5/2021 4/5/2021 5/5/2021 6/5/2021 7/5/2021 8/5/2021 9/5/2021 10/5/2021 11/5/2021 Months Mt.Airy Daily Rainfall -GW3