Loading...
HomeMy WebLinkAbout20170887 Ver 2_Year 1 Monitoring Report - Reduced_20200213ID#* 20170887 Version* 2 Select Reviewer:* Mac Haupt Initial Review Completed Date 02/13/2020 Mitigation Project Submittal - 2/13/2020 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* V Stream Pr Wetlands r- Buffer r- Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Jason Lorch Project Information ...................................................................................................................................................................... ID#:* 20170887 Existing IDr Project Type: r DMS r Mitigation Bank Project Name: Bethel Branch Mitigation Site County: Chatham Document Information Email Address:* jlorch@Wldlandseng.com Version: *2 Existing Version Mitigation Document Type:* Mitigation Monitoring Report File Upload: Bethel Branch Monitoring Year 1 Report - 9.32MB Reduced.pdf Rease upload only one RDFof the corrplete file that needs to be subnitted... Signature Print Name:* Jason Lorch Signature:* j-AMA1 /-o�cw- MONITORING YEAR 1 REPORT CANE CREEK UMBRELLA MITIGATION BANK BETHEL BRANCH MITIGATION SITE Chatham County, NC Cape Fear River Basin HUC 03030002 USACE Action ID Number 2016-02365 Data Collection Period: April - November 2019 Submission Date: December 9, 2019 PREPARED FOR: The North Carolina Interagency Review Team (IRT) USACE Project Manager: Samantha Dailey 11405 Falls of Neuse Road Wake Forest, NC 27587 PREPARED BY: Wildlands Engineering, Inc. 312 West Millbrook Road, Suite 225 Raleigh, NC 27609 Phone: (919) 851-9986 December 2019 EXECUTIVE SUMMARY Wildlands Engineering, Inc. developed the third phase of the Cane Creek Umbrella Mitigation Bank in Chatham County, North Carolina to generate stream and wetland mitigation credits to compensate for permitted impacts to Waters of the United States and/or State waters within the Neuse 01 watershed (HUC 03030002; DWR Sub-basin 03-06-04). Phase three of the Cane Creek Umbrella Mitigation Bank is hereafter referred to as the Bethel Branch Mitigation Site (Site). The project included the restoration and enhancement of 6,148 linear feet (LF) of perennial and intermittent streams on three unnamed tributaries to South Fork Cane Creek for a total of 5,202 stream mitigation units. The project also includes the rehabilitation, re-establishment, and enhancement of 3.22 acres of riparian wetlands for a total of 3.14 wetland mitigation units. The 16.30-acre site is protected with a permanent conservation easement. The Site is located near the town of Snow Camp, North Carolina. The project site is located within the Cane Creek watershed which is discussed in the 2009 Cape Fear River Basin Restoration priorities (RBRP) and upstream of Jordan Lake which is designated as a nutrient sensitive water (NSW) in the 2005 NCDWR Cape Fear River Basinwide Water Quality Plan. While benefits such as habitat improvement and geomorphic stability are limited to the project site, others, such as reduced pollutant and sediment loading, have farther reaching effects. This project will advance the goals identified in the RBRP by restoring a vegetated riparian buffer zone, stabilizing eroding streambanks, and removing livestock from the stream and riparian zones. These activities will result in reduced nutrient and sediment inputs, improved aquatic and riparian habitats, and other ecological benefits. The project goals established in the mitigation plan (Wildlands, 2018) were developed considering the goals and objectives listed in the Cape Fear River RBRP plan. The project goals include: • Reduce pollutant inputs to streams; • Reduce sediment inputs from eroding stream banks; • Improve the stability of stream channels; • Improve instream habitat; • Reconnect channels with floodplains and riparian wetlands to allow a natural flooding regime; • Restore and enhance native floodplain and streambank vegetation; • Restore wetland hydrology, soils, and plant communities; and • Permanently protect the Site from harmful land uses. Site construction and planting were completed in April 2019. As-built surveys were conducted in early May 2019. Monitoring Year 1 (MY1) assessments and site visits were completed in November 2019. Overall, the Site is on track to meet success criteria. All five fixed vegetation plots met the monitoring year 3 (MY3) interim success criterion of 320 stems per acre on an individual basis, however three of the five random vegetation plots did not meet this criterion. This is likely due to thick herbaceous cover making it difficult to locate planted trees during MY1. All restored streams are stable and functioning as designed. Since construction wasn’t completed until late April 2019, data wasn’t collected during the first four months of the year. This likely contributed to no bankfull events being recorded during MY1, however, all four groundwater wells met their success criterion. The flow gage on UT3 showed 3 consecutive and 19 total days of flow. Bankfull events and UT3 baseflow are expected to meet success criteria in the future once data is collected for the entire monitoring year. BETHEL BRANCH MITIGATION SITE Monitoring Year 1 Report TABLE OF CONTENTS Section 1: PROJECT OVERVIEW .....................................................................................................1-1 1.1 Project Goals and Objectives ..................................................................................................... 1-1 Section 2: MONITORING YEAR 1 DATA ASSESSMENT .....................................................................2-1 2.1 Vegetation Assessment .............................................................................................................. 2-1 2.2 Vegetation Areas of Concern ..................................................................................................... 2-1 2.3 Stream Assessment .................................................................................................................... 2-2 2.4 Stream Areas of Concern ........................................................................................................... 2-2 2.5 Stream Hydrology Assessment .................................................................................................. 2-2 2.6 Wetland Assessment .................................................................................................................. 2-2 2.7 Adaptive Management Plan ...................................................................................................... 2-2 2.8 Monitoring Year 1 Summary ...................................................................................................... 2-3 Section 3: METHODOLOGY............................................................................................................3-1 Section 4: REFERENCES .................................................................................................................4-1 APPENDICES Appendix 1 General Figures and Tables Figure 1 Vicinity Map Figure 2 Project Component/Asset Map Table 1 Project Components and Mitigation Credits Table 2 Project Activity and Reporting History Table 3 Project Contact Table Table 4 Project Information and Attributes Appendix 2 Visual Assessment Data Figure 3 Integrated Current Condition Plan View Map Table 5a-c Visual Stream Morphology Stability Assessment Table Table 6 Vegetation Condition Assessment Table Stream Photographs Groundwater Well Photographs Vegetation Plot Photographs Appendix 3 Vegetation Plot Data Table 7 Vegetation Plot Criteria Attainment Table Table 8a Fixed Plots: Planted and Total Stem Density Table 8b Random Plots: Planted and Total Stem Density Appendix 4 Morphological Summary Data and Plots Table 9 Morphology and Hydraulic Summary (Dimensional Parameters – Cross-Section) Cross-Section Plots Table 10 Bank Pin Exposure Appendix 5 Hydrology Summary Data and Plots Table 11 Verification of Bankfull Events Monthly Rainfall Data Table 12 Wetland Gage Attainment Summary Groundwater Gage Plots Soil Temperature Probe Plot Recorded In-Stream Flow Events Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 1-1 Section 1: PROJECT OVERVIEW The Bethel Branch Mitigation Site (Site) is located in northern Chatham County, approximately 5.5 miles southeast of Snow Camp, NC (Figure 1). The Site is located in the Cape Fear River Basin 14-digit HUC 03030002050050 and North Carolina Division of Water Resources Sub-basin 03-06-04. The Site is within the Jordan Lake watershed which is classified as Water Supply (WS) IV, and a nutrient sensitive water needing additional nutrient management due to excessive growth of microscopic or macroscopic vegetation. Project streams consisted of restoration and enhancement on three unnamed tributaries (UT1, UT2, and UT3) for a total of 5,202 linear feet of stream. A total of 3.22 acres of wetlands were re-established, rehabilitated, and enhanced. Riparian and wetland areas were planted with native vegetation to improve habitat and ecosystem function. The final mitigation plan was submitted in October 2018 and accepted by the North Carolina Interagency Review Team (NCIRT) in November 2018. Site construction was completed by Land Mechanic Designs, Inc. in April 2019. Planting and seeding activities were completed by Bruton Natural Systems, Inc. in April 2019. Baseline monitoring and monitoring year 1 (MY1) were completed in April and November 2019 respectively. Annual monitoring and reporting will continue for seven years with close-out anticipated in 2026 given success criteria are attained. Appendix 1 provides detailed project activity, history, contact, and site background information. A conservation easement was recorded on 16.30 acres. The project is expected to yield 5,202 stream mitigation units (SMUs) and 3.14 wetland mitigation units (WMUs). Project components and assets are illustrated in Figure 2 and credit allocation is provided in Table 1 of Appendix 1. 1.1 Project Goals and Objectives The project is intended to provide numerous ecological benefits within the Cape Fear River Basin. While benefits such as habitat improvement and geomorphic stability are limited to the project site, reduced nutrient and sediment loading have farther reaching effects. The table below, describes expected outcomes to water quality and ecological processes are provided with project goals and objectives. The project goals and objectives were developed as part of the mitigation plan considering the goals and objectives listed in the Cape Fear River RBRP plan and strive to maximize ecological and water quality uplift within the watershed. The following project goals and related objectives established in the Mitigation Plan include: Goals Objectives Expected Outcomes Reduce pollutant inputs to streams including fecal coliform, nitrogen, and phosphorus. Exclude cattle from streams and buffers by installing fencing around conservation easements adjacent to cattle pastures and providing alternative water sources or removing cattle from sites. Reduction in pollutant loads to streams caused by cattle access. Reduce inputs of sediment into streams from eroding stream banks. Reconstruct stream channels with stable dimensions. Add bank revetments and in-stream structures to protect restored/enhanced streams. Reduction in sediment loadings to streams from bank erosion. Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 1-2 Goals Objectives Expected Outcomes Return networks of streams to a stable form that is capable of supporting hydrologic, biologic, and water quality functions. Construct stream channels that will maintain a stable pattern and profile considering the hydrologic and sediment inputs to the system, the landscape setting, and the watershed conditions. Reduce shear stress on channel boundary. Support all stream functions above hydrology. Improve aquatic habitat in project streams. Install habitat features such as constructed riffles, cover logs, and brush toes into restored/enhanced streams. Add woody materials to channel beds. Construct pools of varying depth. Increase and diversify available habitats for macroinvertebrates, fish, and amphibians leading to colonization and increase in biodiversity over time. Add complexity including LWD to streams. Raise stream bed elevations and allow for more frequent overbank flows to provide a source of hydration for floodplain wetlands. Reduce shear stress on channels during larger flow events. Reconstruct stream channels with appropriate bankfull dimensions and depth relative to the existing floodplain. Raise water table and hydrate riparian wetlands. Allow flood flows to disperse on the floodplain. Support geomorphic and higher-level functions. Create and improve riparian and wetland habitats by planting native vegetation. Provide a canopy to shade streams and reduce thermal loadings. Create a source of woody inputs for streams. Reduce flood flow velocities on floodplain and improve long-term lateral stability of streams. Plant native tree and shrub species in riparian zone and wetland areas. Reduce sediment inputs from bank erosion and runoff. Increase nutrient cycling and storage in floodplain. Improve riparian habitat. Add a source of LWD and organic material to stream. Support all stream functions. Restore wetland hydrology, soils, and plant communities. Restore riparian wetlands by raising stream beds, plugging existing ditches, removing fill material over relict hydric soils, and planting native wetland species. Restored wetland hydrology, formation of hydric soils, and establishment of wetland vegetation. Ensure that development and agricultural uses that would damage the Site or reduce the benefits of project are prevented. Establish conservation easements on the Site. Protect the Site from encroachment on the riparian corridor and direct impact to streams and wetlands. Support all stream functions. Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 2-1 Section 2: MONITORING YEAR 1 DATA ASSESSMENT Monitoring year 1 site assessment was conducted between April 2019 and November 2019. Vegetation, stream geomorphology and hydrology, and wetland hydrology success criteria were approved in the mitigation plan. Monitoring features and locations are shown in Figure 3. 2.1 Vegetation Assessment Planted woody vegetation is monitored in accordance with the guidelines and procedures presented by the Carolina Vegetation Survey-EEP Level 2 Protocol (Lee et al., 2006). Final vegetation success criteria are the survival of 210 planted stems per acre averaging 10 feet in height at the end of MY7. Interim success criteria are the survival of 320 planted stems per acre at the end of MY3 and 260 planted stems per acre at the end of MY5. Five fixed 100 square meter vegetation plots were installed randomly on the Site and will be monitored annually. Another five 100 square meter vegetation plots are relocated throughout the planted area at random each year. All 10 plots are monitored annually and subject to the success criteria above. The MY1 vegetation survey was completed in November 2019. The average planted density across all plots is 461 planted stems per acre. All fixed vegetation plots (VP 1-5) exceeded the MY3 criterion by more than 10% with plots ranging from 526 to 607 stems per acre. However, only random vegetation plots 7 and 9 exceeded the MY3 success criterion. Random plots 6, 8, and 10 were below the 320 stem per acre success criterion. Most likely stems were overlooked because thick herbaceous vegetation stands tall relative to the short tree stems making them difficult to locate since random plots do not have the advantage of a static point of origin for reference. Additional trees are expected to be located in random vegetation plots in future monitoring years and is not a concern at this time. Vegetation plot photographs can be found in Appendix 2 and summary data of each plot can be found in Appendix 3. 2.2 Vegetation Areas of Concern Areas in proximity to random vegetation plots 6 and 8 will be monitored for low stem density in subsequent monitoring years. Woody stem survival and growth in these areas may be limited by competition with thick herbaceous vegetation. This is not yet considered a concern as most likely these stems are still alive and obscured by taller early successional vegetation. Remedial actions will be taken if deemed necessary. The old pond bed at the top of UT3 was planted at an inadequate stem density. This was due to the pond bed being very wet and muddy as construction was finishing. The area was very wet and soft making it unsafe for the planting crew to walk on. The planting contractor came back at a later date to finish planting the pond area once the soil had sufficiently dried out. We believe they missed some areas when they returned so areas of the pond area were not planted at the stem density called for in the construction plans. This is a reason why the stem density in random vegetation plot 10 was so low. This area will be replanted this winter to achieve the same planted stem density as the rest of the Site. A few bare areas along UT3 were noted by the Interagency Review Team (IRT) on October 1, 2019 during a site visit. These areas were seeded and covered in straw this fall and vegetation sprouted before the growing season ended. Refer to the stream banks at photo point 25 in Appendix 2 Stream Photographs. These areas will continue to be monitored to confirm vegetation growth is occurring. Tree of heaven (Ailanthus altissima) and Chinese privet (Ligustrum sinense.) have been observed growing sporadically along UT2 Reach 1 in the Enhancement II section. A population of tree of heaven (0.36 acres) is growing at the bottom of UT2 Reach 1, just above the stream crossing. Both of these invasive species will be addressed during MY2. Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 2-2 2.3 Stream Assessment Ten permanent cross-sections were installed per Monitoring Requirements and Performance Standards for Compensatory Mitigation in North Carolina (NCIRT, October 2016) in order to assess channel dimension performance. Morphological surveys for MY1 were conducted in November 2019 and all project streams are stable and functioning as designed. Cross-sections at the Site show little to no change in the bankfull area, maximum depth ratio, or width-to-depth ratio. Bank height ratios fall within the appropriate Rosgen stream type parameters. Longitudinal profile surveys are not required on the project unless visual inspection indicates reach wide vertical instability. Refer to Appendix 2 for the Current Condition Plan View (CCPV) map, visual stability assessment table, and stream photographs. Refer to Appendix 4 for the morphological data and plots. 2.4 Stream Areas of Concern No stream areas of concern were identified during MY1. 2.5 Stream Hydrology Assessment At the end of the seven-year monitoring period, four bankfull events must have occurred in separate years within the restoration reaches. No bankfull events were recorded this year but construction did not finish until late April, so data was not recorded for the entire year. In addition, the presence of baseflow must be documented on UT3 for a minimum of 30 consecutive days during a normal precipitation year. Results from the flow gage installed on UT3 show baseflow for only 19 days, three of which were consecutive. This does not meet the 30 consecutive day minimum, but no data was collected January through April which are often wet months. Although UT3 baseflow did not meet success criteria for MY1, it is expected to meet in subsequent monitoring years. Refer to Appendix 5 for hydrologic data. 2.6 Wetland Assessment Four groundwater monitoring gages were installed during baseline monitoring in wetland re- establishment zones. All gages were installed at appropriate locations so that data collected provides an indication of groundwater levels throughout the Site. The performance criteria for wetland hydrology is groundwater within 12 inches of the ground surface for 8.0% of the growing season consecutively. To determine the growing season at the Site, one soil temperature probe was installed. A barotroll logger (to measure barometric pressure used in the calculations of groundwater levels with well transducer data) was also installed. Refer to Figure 3 in Appendix 2 for the groundwater gage locations and Appendix 5 for groundwater hydrology data and plots. As was mentioned previously, project construction finished in late April 2019 so no data could be collected for the beginning of the growing season. Despite this, all four groundwater monitoring gages met the success criteria. The growing season in this area is from March 18 to November 17 (244 days) according to the Applied Climate Information System (ACIS) website (NOAA-RCC, 2019). All groundwater gages showed groundwater within 12 inches of the surface for more than 8% of the growing season, ranging from 9.4% (groundwater gage 3) to 19.2% (groundwater gage 4). After the October 1, 2019 as-built site visit, the IRT requested supplementary groundwater gages be added to wetland areas. The groundwater gages will be installed before MY2 growing season begins and data will be included in annual monitoring reports. 2.7 Adaptive Management Plan The vegetation areas of concern along UT3, including areas of low stem density and the bare areas will be addressed in MY2. Supplemental planting along UT3 in the old pond bed will be completed before Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 2-3 MY2 growing season begins. The bare areas that were seeded in October will be monitored to confirm vegetation growth in the spring. Chinese privet and tree of heaven along UT2 will be treated using various methods of herbicide application including foliar, cut stump, hack and squirt, and stem injection. 2.8 Monitoring Year 1 Summary All five fixed vegetation plots met MY3 interim success criterion of 320 stems per acre on an individual basis, however three of the five random vegetation plots did not meet this criterion. This is likely to do to the thick herbaceous vegetation making it difficult to locate planted stems. No bankfull events were recorded, however, the project wasn’t completed until late April and streams were only monitoring for a portion of the year. The flow gage on UT3 showed 3 consecutive and 19 total days of flow. Bankfull events and UT3 baseflow are expected to meet success criteria in future years once data is collected for the entire monitoring year. All four groundwater wells met their success criterion. Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 3-1 Section 3: METHODOLOGY Geomorphic data was collected following the standards outlined in The Stream Channel Reference Site: An Illustrated Guide to Field Techniques (Harrelson et al., 1994) and in Stream Restoration: A Natural Channel Design Handbook (Doll et al., 2003). All Integrated Current Condition Mapping was recorded using a Trimble handheld GPS with sub-meter accuracy and processed using Pathfinder and ArcGIS. Crest gages and pressure transducers were installed in riffle cross-sections and monitored throughout the year. Hydrologic monitoring instrument installation and monitoring methods are in accordance with the United States Army Corps of Engineers standards (USACE, 2003). Vegetation monitoring protocols followed the Carolina Vegetation Survey-EEP Level 2 Protocol (Lee et al., 2008). Bethel Branch Mitigation Site Monitoring Year 1 Annual Report 4-1 Section 4: REFERENCES Breeding, R. 2010. Neuse River Basin Restoration Priorities. North Carolina Ecosystem Enhancement Program. Doll, B.A., Grabow, G.L., Hall, K.A., Halley, J., Harman, W.A., Jennings, G.D., and Wise, D.E. 2003. Stream Restoration A Natural Channel Design Handbook. Harrelson, Cheryl C; Rawlins, C.L.; Potyondy, John P. 1994. Stream Channel Reference Sites: An Illustrated Guide to Field Technique. Gen. Tech. Rep. RM-245. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 61 p. Lee, Michael T., Peet, Robert K., Steven D., Wentworth, Thomas R. 2006. CVS-EEP Protocol for Recording Vegetation Version 4.0. Retrieved from http://www.nceep.net/business/monitoring/veg/datasheets.htm. Multi-Resolution Land Characteristics Consortium (MRLC). 2001. National Land Cover Database. http://www.mrlc.gov/nlcd.php National Oceanic and Atmospheric Administration Regional Climate Centers (NOAA-RCC). 2019. Applied Climate Information System. Accessed online at: http://agacis.rcc-acis.org/ North Carolina Division of Water Resources (NCDWR). 2011. Surface Water Classifications. http://portal.ncdenr.org/web/wq/ps/csu/classifications North Carolina Interagency Review Team. 2018. Wilmington District Stream and Wetland Compensatory Mitigation Updated. North Carolina Wildlife Resources Commission. 2005. Wildlife Action Plan. Accessed online at: http://www.ncwildlife.org/portals/0/Conserving/documents/ActionPlan/WAP_complete.pdf Rosgen, D. L. 1994. A classification of natural rivers. Catena 22:169-199. Rosgen, D.L. 1996. Applied River Morphology. Pagosa Springs, CO: Wildland Hydrology Books. United States Army Corps of Engineers (USACE), 2003. Stream Mitigation Guidelines. USACE, NCDENR- DWQ, USEPA, NCWRC. United States Geological Survey (USGS), 1998. North Carolina Geology. http://www.geology.enr.state.nc.us/usgs/carolina.htm Wildlands Engineering, Inc. (2018). Cane Creek Umbrella Mitigation Bank: Bethel Branch Site Mitigation Plan. USACE, Raleigh, NC. APPENDIX 1. General Figures and Tables 03030002050050 03030003070010 03030003070020 03030002050070 03030002050090 Figure 1. Vicinity Map Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 Chatham County, NC 0 0.5 1 Mile ¹ Bethel Branch Mitigation Site Hydrologic Unit Code (14) 2018 Aerial Photography From Raleigh, NC, take I-40 West approximately 4.8 miles to US 64W at Exit 98B. Continue on US 64W for 24.3 miles. Exit right at exit 381 on NC 87N towards Burlington and continue for approximately one mile. Turn left onto Silk Hope Gum Spring Road and continue for approximately 8 miles. At the intersection in Silk Hope, turn right onto Silk Hope Lindley Mill Road. Travel approximately 3 miles and turn left onto Moon Lindley Road continue for 0.6 miles. Turn right onto R E Wright Road and the project area is accessible through the gate 0.1 miles on the left. !( !( !( !( Wetland RE2 pond removed Wetland RE2 Wetland RH2 Wetland E1 Wetland RE1 Wetland RE1 Wetland RH4 Wetland RH3 Wetland RH1 Reach 1 Reach 1 Reach 2 Reach 3 Reach 4 Reach 2 UT1 UT1 UT2 UT2 UT3 UT2 Chatham County, NC 0 350175 Feet ¹ Conservation Easement External Crossings Wetland Approach Wetland Enhancement Wetland Re-Establishment Wetland Rehabilitation As-Built Streams Stream Restoration Stream Enhancement II Non-Project Streams !(Reach Breaks Figure 2. Project Component/Asset Map Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 2017 Aerial Photography Table 1. Project Components and Mitigation Credits Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Reach ID Existing Footage/ Acreage Mitigation Plan Footage/ Acreage Mitigation Category Restoration Level Priority Level Mitigation Ratio (X:1) As-Built Footage/ Acreage UT1 Reach 1 2,398 2,514 Warm R P1 & P2 1.0 2,514 UT1 Reach 2 114 114 Warm EII N/A 2.5 114 UT2 Reach 1 1,242 1,242 Warm EII N/A 2.5 1,242 UT2 Reach 2 1,364 1,180 Warm R P1 1.0 1,180 UT2 Reach 3 440 411 Warm R P1 1.0 411 UT2 Reach 4 434 434 Warm EII N/A 2.5 434 UT3 461 801 Warm R P1 1.0 801 RE1 and RE2 3.03 3.03 Riparian N/A Re-estab 1.0 3.03 RH1 - RH4 0.07 0.07 Riparian N/A Rehab 1.5 0.07 E12 0.12 0.12 Riparian N/A E 2.0 0.12 Warm1 Cool Cold Riverine Non-Riverine Restoration 4,703 Enhancement I Enhancement II 499 Preservation Re-Establishment 3.03 Rehabilitation 0.05 Enhancement2 0.06 Creation Totals 5,202 3.140 1As in the Mitigation Plan, credits have been adjusted to reflect reduced buffer width. 2Acreage and credits have been adjusted to correct a miscalculation in the Mitigation Plan. Pond Removed, Full Channel Restoration, Grade Control Structures, Planted Buffer PROJECT COMPONENTS Comments Hydrologic Restoration, Conservation Easement, Planted Hydrologic Restoration, Conservation Easement, Planted PROJECT CREDITS Full Channel Restoration, Grade Control Structures, Planted Buffer No credit, no buffer on right side of channel Full Channel Restoration, Grade Control Structures, Planted Buffer No credit, no buffer on right side of channel Conservation Easement, Planted Buffer Full Channel Restoration, Grade Control Structures, Planted Buffer STREAMS Monitoring Year 1 - 2019 Restoration Level Stream Riparian Wetland Non-Riparian Wetland Coastal Marsh Hydrologic Restoration, Conservation Easement, Planted WETLANDS USACE Action ID No. 2016-02365 USACE Action ID No. 2016-02365 Bare Roots Live Stakes Bethel Branch Mitigation Site 312 West Millbrook Road, Suite 225 Raleigh, NC 27609 Monitoring Year 1 - 2019 Willow Spring, NC 27592 126 Circle G Lane Land Mechanic Designs, Inc. Vegetation Survey 2025 1Seed and mulch is added as each section of construction is completed. December 2025 Table 3. Project Contact Table 2022 December 2023 December 20242024 2024Year 6 Monitoring November 2019 April 2019 Year 1 Monitoring Stream Survey Vegetation Survey 2021 2020 November 2019 Baseline Monitoring Document (Year 0)Stream Survey Final Design - Construction Plans December 2018 December 2018 Bare root and live stake plantings for reach/segments April 2019 April 2019 Permanent seed mix applied to reach/segments1 April 2019 April 2019 April 2019 Table 2. Project Activity and Reporting History Activity or Report Data Collection Complete Completion or Scheduled Delivery Mitigation Plan October 2018 October 2018 Bethel Branch Mitigation Site Monitoring Year 1 - 2019 Temporary S&E mix applied to entire project area1 April 2019 April 2019 Construction April 2019 919.851.9986 Jason Lorch Nursery Stock Suppliers Monitoring Performers Wildlands Engineering, Inc. Monitoring, POC Bruton Natural Systems, Inc & Foggy Mountain Nursery Dykes and Sons Nursery and Greenhouse 2023 Wildlands Engineering, Inc. Bruton Natural Systems, Inc 919.851.9986 Designer Greg Turner, PE Fremont, NC 27830 Construction Contractor Planting Contractor P.O. Box 1197 2025 Stream Survey Vegetation Survey Stream Survey Vegetation Survey 2023 Year 7 Monitoring Stream Survey Year 2 Monitoring Year 3 Monitoring Year 4 Monitoring Year 5 Monitoring Stream Survey December 20202020 2021 2022 December 2022 Vegetation Survey May 2019 July 2019 Stream Survey Vegetation Survey Vegetation Survey Stream Survey Vegetation Survey December 2021 December 2019 USACE Action ID No. 2016-02365 Applicable?Resolved? Yes Yes Yes Yes Yes Yes Yes Yes No N/A No N/A No N/A Streams 35° 49’ 45.56” N, 79° 22’ 11.37” W 16.30 03-06-04DWR Sub-basin Waters of the United States - Section 404 Supporting Documentation USACE Nationwide Permit No. 27 and DWQ 401 Water Quality Certification No. 4134. 207 49 Table 4. Project Information and Attributes Drainiage Area (acres) Project Name Project Area (acres) River Basin Physiographic Province USGS Hydrologic Unit 14-digit County 03030002050050 Piedmont Coastal Zone Management Act (CZMA)/Coastal Area Management Act (CAMA) REGULATORY CONSIDERATIONS Waters of the United States - Section 401 Endangered Species Act Regulation Essential Fisheries Habitat FEMA Floodplain Compliance Historic Preservation Act N/A Bethel Branch Mitigation Site Monitoring Year 1 - 2019 3030002 Cape Fear PROJECT INFORMATION PROJECT WATERSHED SUMMARY INFORMATION USGS Hydrologic Unit 8-digit Project Coordinates (latitude and longitude) Planted Area (acres)8.10 Bethel Branch Mitigation Plan; Wildlands determined "no effect" on Chatham County listed endangered species. The USFWS responded on June 22, 2016 and concurred with NCWRC stating that “the proposed action is not likely to adversely affect any federally-listed endangered or threatened species, their formally designated critical habitat, or species currently proposed for listing under the Act at these sites.” Chatham County Bethel Branch Mitigation Site Correspondence from SHPO on July 1, 2018 indicating they were not aware of any historic resources that would be affected by the project. N/A N/A UT1 UT2 UT3 485 3% CGIA Land Use Classification Pasture Unmanaged herbaceous Impervious CGIA Land Use Classification 70% 1% Forested 26% APPENDIX 2. Visual Assessment Data Figure 3. Integrated Current Condition Plan View Map Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 [ [ [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ [ [[[[[[[ [ [ [[[[[[[[ [[[[[[[[[[[[[[ [ [[[[[[ [[[[[ [[[[[[[[[[[[[[[[[[[[[[[[[ [ [ [[[[[[[[[[[[[[!( !( !( !( !A!A !A !A !A !A !A !A ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ !. !. !. !. !A pond removed Reach 1 Reach 1 Reach 2 Reach 3 Reach 4 Reach 2 UT1 UT1 UT2 UT2 UT3 UT2 XS4 X S 5 XS2 XS9XS 3 XS 7 XS1 XS10XS8 XS6 GWG 4 GWG 3 GWG 2GWG 1 PP 9 PP 8 PP 7 PP 6 PP 5 PP 4 PP 3 PP 2 PP 1 PP 26 PP 25 PP 24 PP 23 PP 22 PP 21 PP 20 PP 19 PP 18 PP 17 PP 16 PP 15 PP 14 PP 13 PP 12 PP 11 PP 10 Soil Temperature Probe 9 8 6 7 10 1 2 3 4 5 Chatham County, NC 0 350175 Feet ¹ 2017 Aerial Photography !(Reach Breaks ^_Photo Points !.Bank Pin Array !A Barotroll !A Soil Temperature Probe !A Crest Gage !A Flow/Crest Gage Groundwater Gages - MY1 !A Groundwater Criterion Met Conservation Easement External Crossings Wetland Approach Wetland Enhancement Wetland Re-Establishment Wetland Rehabilitation Tree of Heaven (0.36 Ac) Low Stem Density Area (0.72 Ac) Bare Areas (0.14 Ac) Fixed Vegetation Plots - MY1 Criterion Met Random Vegetation Plots - MY1 !(Criterion Met !(Criterion Not Met As-Built Streams Stream Restoration Stream Enhancement II Non-Project Stream [[Fencing Cross Section Table 5a. Visual Stream Morphology Stability Assessment Table USACE Action ID No. 2016-02365 UT1 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number in As-Built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended Number with Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjust % for Stabilizing Woody Vegetation Aggradation 0 0 100% Degradation 0 0 100% 2. Riffle Condition Texture/Substrate 37 37 100% Depth Sufficient 36 36 100% Length Appropriate 36 36 100% Thalweg centering at upstream of meander bend (Run)36 36 100% Thalweg centering at downstream of meander bend (Glide)36 36 100% 1. Scoured/Eroded Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion. 0 0 100%n/a n/a n/a 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 0 100%n/a n/a n/a 3. Mass Wasting Bank slumping, calving, or collapse.0 0 100%n/a n/a n/a 0 0 100%n/a n/a n/a 1. Overall Integrity Structures physically intact with no dislodged boulders or logs.21 21 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill.1 1 100% 2a. Piping Structures lacking any substantial flow underneath sills or arms.1 1 100% 3. Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 20 20 100% 4. Habitat Pool forming structures maintaining ~Max Pool Depth : Bankfull Depth ≥ 1.6 Rootwads/logs providing some cover at baseflow. 20 20 100% Bethel Branch Mitigation Site 1Excludes constructed riffles since they are evaluated in section 1. 2. Bank Totals 3. Engineered Structures1 1. Bed 1. Vertical Stability (Riffle and Run Units) 3. Meander Pool Condition 4. Thalweg Position Monitoring Year 1 - 2019 Table 5b. Visual Stream Morphology Stability Assessment Table USACE Action ID No. 2016-02365 UT2 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number in As-Built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended Number with Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjust % for Stabilizing Woody Vegetation Aggradation 0 0 100% Degradation 0 0 100% 2. Riffle Condition Texture/Substrate 29 29 100% Depth Sufficient 28 28 100% Length Appropriate 28 28 100% Thalweg centering at upstream of meander bend (Run)28 28 100% Thalweg centering at downstream of meander bend (Glide)28 28 100% 1. Scoured/Eroded Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion. 0 0 100%n/a n/a n/a 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 0 100%n/a n/a n/a 3. Mass Wasting Bank slumping, calving, or collapse.0 0 100%n/a n/a n/a 0 0 100%n/a n/a n/a 1. Overall Integrity Structures physically intact with no dislodged boulders or logs.16 16 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill.0 0 N/A 2a. Piping Structures lacking any substantial flow underneath sills or arms.0 0 N/A 3. Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 16 16 100% 4. Habitat Pool forming structures maintaining ~Max Pool Depth : Bankfull Depth ≥ 1.6 Rootwads/logs providing some cover at baseflow. 16 16 100% Bethel Branch Mitigation Site Monitoring Year 1 - 2019 1. Bed 1. Vertical Stability (Riffle and Run Units) 3. Meander Pool Condition 1Excludes constructed riffles since they are evaluated in section 1. 4. Thalweg Position 2. Bank Totals 3. Engineered Structures1 Table 5c. Visual Stream Morphology Stability Assessment Table USACE Action ID No. 2016-02365 UT3 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number in As-Built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended Number with Stabilizing Woody Vegetation Footage with Stabilizing Woody Vegetation Adjust % for Stabilizing Woody Vegetation Aggradation 0 0 100% Degradation 0 0 100% 2. Riffle Condition Texture/Substrate 21 21 100% Depth Sufficient 20 20 100% Length Appropriate 20 20 100% Thalweg centering at upstream of meander bend (Run)20 20 100% Thalweg centering at downstream of meander bend (Glide)20 20 100% 1. Scoured/Eroded Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion. 0 0 100%n/a n/a n/a 2. Undercut Banks undercut/overhanging to the extent that mass wasting appears likely. Does NOT include undercuts that are modest, appear sustainable and are providing habitat. 0 0 100%n/a n/a n/a 3. Mass Wasting Bank slumping, calving, or collapse.0 0 100%n/a n/a n/a 0 0 100%n/a n/a n/a 1. Overall Integrity Structures physically intact with no dislodged boulders or logs.15 15 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill.0 0 N/A 2a. Piping Structures lacking any substantial flow underneath sills or arms.0 0 N/A 3. Bank Protection Bank erosion within the structures extent of influence does not exceed 15%. 15 15 100% 4. Habitat Pool forming structures maintaining ~Max Pool Depth : Bankfull Depth ≥ 1.6 Rootwads/logs providing some cover at baseflow. 15 15 100% 1Excludes constructed riffles since they are evaluated in section 1. 4. Thalweg Position 2. Bank Totals 3. Engineered Structures1 Bethel Branch Mitigation Site Monitoring Year 1 - 2019 1. Bed 1. Vertical Stability (Riffle and Run Units) 3. Meander Pool Condition Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 Planted Acreage 8.10 Vegetation Category Definitions Mapping Threshold (Ac) Number of Polygons Combined Acreage % of Planted Acreage Bare Areas Very limited cover of both woody and herbaceous material 0.1 3 0.14 1.73% Low Stem Density Areas Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria.0.1 1 0.72 8.89% 4 0.86 10.62% Areas of Poor Growth Rates or Vigor Areas with woody stems of a size class that are obviously small given the monitoring year.0.25 Ac 0 0 0% 4 0.86 10.62% Easement Acreage 16.30 Vegetation Category Definitions Mapping Threshold (SF) Number of Polygons Combined Acreage % of Easement Acreage Invasive Areas of Concern Areas of points (if too small to render as polygons at map scale).1,000 2 0.36 2.21% Easement Encroachment Areas Areas of points (if too small to render as polygons at map scale).none 0 0 0% Table 6. Vegetation Condition Assessment Table Total Cumulative Total STREAM PHOTOGRAPHS Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 1 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 1 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 2 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 2 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 3 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 3 UT1 Reach 1 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 4 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 4 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 5 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 5 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 6 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 6 UT1 Reach 1 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 7 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 7 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 8 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 8 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 9 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 9 UT1 Reach 1 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 10 UT1 Reach 1 – upstream (11/19/2019) PHOTO POINT 10 UT1 Reach 1 – downstream (11/19/2019) PHOTO POINT 11 UT2 Reach 1 – upstream (11/19/2019) PHOTO POINT 11 UT2 Reach 1 – downstream (11/19/2019) PHOTO POINT 12 UT2 Reach 1 – upstream (11/19/2019) PHOTO POINT 12 UT2 Reach 1 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 13 UT2 Reach 1 – upstream (11/19/2019) PHOTO POINT 13 UT2 Reach 1 – downstream (11/19/2019) PHOTO POINT 14 UT2 Reach 1 – upstream (11/19/2019) PHOTO POINT 14 UT2 Reach 1 – downstream (11/19/2019) PHOTO POINT 15 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 15 UT2 Reach 2 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 16 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 16 UT2 Reach 2 – downstream (11/19/2019) PHOTO POINT 17 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 17 UT2 Reach 2 – downstream (11/19/2019) PHOTO POINT 18 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 18 UT2 Reach 2 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 19 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 19 UT2 Reach 2 – downstream (11/19/2019) PHOTO POINT 20 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 20 UT2 Reach 2 – downstream (11/19/2019) PHOTO POINT 21 UT2 Reach 2 – upstream (11/19/2019) PHOTO POINT 21 UT2 Reach 2 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 22 UT2 Reach 3 – upstream (11/19/2019) PHOTO POINT 22 UT2 Reach 3 – downstream (11/19/2019) PHOTO POINT 23 UT2 Reach 3 – upstream (11/19/2019) PHOTO POINT 23 UT2 Reach 3 – downstream (11/19/2019) PHOTO POINT 24 UT3 – upstream (11/19/2019) PHOTO POINT 24 UT3 – downstream (11/19/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Stream Photographs PHOTO POINT 25 UT3 – upstream (11/19/2019) PHOTO POINT 25 UT3 – downstream (11/19/2019) PHOTO POINT 26 UT3 – upstream (11/19/2019) PHOTO POINT 26 UT3 – downstream (11/19/2019) GROUNDWATER WELL PHOTOGRAPHS Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Groundwater Well Photographs GROUNDWATER WELL 1 – (11/19/2019) GROUNDWATER WELL 2 – (11/19/2019) GROUNDWATER WELL 3 – (11/19/2019) GROUNDWATER WELL 4 – (11/19/2019) VEGETATION PLOT PHOTOGRAPHS Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Vegetation Plot Photographs FIXED VEG PLOT 1 (11/06/2019) FIXED VEG PLOT 2 (11/06/2019) FIXED VEG PLOT 3 (11/06/2019) FIXED VEG PLOT 4 (11/06/2019) FIXED VEG PLOT 5 (11/06/2019) Bethel Branch Mitigation Site Appendix 2: Visual Assessment Data – Vegetation Plot Photographs RANDOM VEG PLOT 6 (11/06/2019) RANDOM VEG PLOT 7 (11/06/2019) RANDOM VEG PLOT 8 (11/06/2019) RANDOM VEG PLOT 9 (11/06/2019) RANDOM VEG PLOT 10 (10/23/2019) APPENDIX 3. Vegetation Plot Data Table 7. Vegetation Plot Criteria Attainment Table Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 Plot Fixed Veg Plot 1 Fixed Veg Plot 2 Fixed Veg Plot 3 Fixed Veg Plot 4 Fixed Veg Plot 5 Random Veg Plot 6 Random Veg Plot 7 Random Veg Plot 8 Random Veg Plot 9 Random Veg Plot 10 N Success Criteria Met (Y/N)Project Mean Y Y Y Y Y N Y N 70% Y Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 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 2 2 2 2 2 2 2 2 2 1 1 1 3 3 3 10 10 10 11 11 11 Celtis occidentalis Northern Hackberry Shrub Tree 1 1 1 1 1 1 2 2 2 2 2 2 Fraxinus pennsylvanica Green Ash Tree 5 5 5 2 2 7 3 3 3 4 4 4 1 1 1 15 15 20 16 16 16 Liriodendron tulipifera Tulip Poplar Tree 2 2 2 3 3 3 2 2 2 7 7 7 8 8 8 Platanus occidentalis Sycamore Tree 3 3 3 2 2 2 4 4 4 3 3 3 6 6 6 18 18 18 18 18 18 Quercus lyrata Overcup Oak Tree 2 2 2 2 2 2 3 3 3 7 7 7 7 7 7 Quercus pagoda Cherrybark Oak Tree 1 1 1 3 3 3 1 1 1 2 2 2 7 7 7 8 8 8 Quercus phellos Willow Oak Tree 1 1 1 1 1 1 1 1 1 1 1 1 4 4 4 4 4 4 Ulmus americana American Elm Tree 1 1 1 1 1 1 1 1 1 15 15 15 13 13 18 15 15 15 15 15 15 13 13 13 71 71 76 75 75 75 7 7 7 7 7 7 6 6 6 7 7 7 5 5 5 9 9 9 9 9 9 607 607 607 526 526 728 607 607 607 607 607 607 526 526 526 575 575 615 607 607 607 Color for Density Exceeds requirements by 10% Exceeds requirements, but by less than 10% Fails to meet requirements, by less than 10% Fails to meet requirements by more than 10% Includes volunteer/natural woody stems PnoLS - Planted Stems Excluding Live Stakes P-all - All Planted Stems T - All Woody Stems VP 4 VP 5 5 0.12 Species count 1 0.02 1 0.02 Stems per ACRE 1 0.02 1 0.02 size (ares) size (ACRES) Table 8a. Fixed Plots: Planted and Total Stem Density 1 0.02 5 0.12 Annual Means MY1 (2019)MY0 (2019) Stem count Current Plot Data (MY1 2019) Scientific Name Common Name Species Type VP 1 VP 2 VP 3 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 Te Total Te Total Te Total Te Total Te Total Te Total Betula nigra River Birch Tree 1 1 1 1 2 2 Celtis occidentalis Northern Hackberry Shrub Tree 2 2 2 2 2 2 6 6 Fraxinus pennsylvanica Green Ash Tree 4 4 2 2 1 1 7 7 Liriodendron tulipifera Tulip Poplar Tree 1 1 1 1 Platanus occidentalis Sycamore Tree 3 3 4 4 1 1 2 2 3 3 13 13 Quercus lyrata Overcup Oak Tree 2 2 2 2 1 1 1 1 6 6 Quercus pagoda Cherrybark Oak Tree 1 1 1 1 1 1 3 3 Quercus phellos Willow Oak Tree 2 2 2 2 Ulmus americana American Elm Tree 0 0 Salix nigra Black Willow Tree 3 3 3 3 6 6 15 15 7 7 11 11 4 4 43 43 3 3 6 6 5 5 7 7 2 2 23 23 243 243 607 607 283 283 445 445 162 162 348 348 Color for Density Exceeds requirements by 10% Exceeds requirements, but by less than 10% Fails to meet requirements, by less than 10% Fails to meet requirements by more than 10% Te - Number of stems including exotic species Total - Number of stems excluding exotic species Annual Means MY1 (2019) 5 0.12 VP 9 VP 10 1 0.02 Current Plot Data (MY1 2019) 1 1 0.02 1 0.02 Table 8b. Random Plots: Planted and Total Stem Density Species count Stems per ACRE VP 6 VP 7 VP 8 Scientific Name Common Name Species Type Stem count size (ares) size (ACRES) 1 0.02 0.02 APPENDIX 4. Morphological Summary Data and Plots Table 9. Morphology and Hydraulic Summary (Dimensional Parameters ‐ Cross‐Section)Bethel Branch Mitigation Site       USACE Action ID No. 2016‐02365Monitoring Year 1 ‐ 2019Dimension and SubstrateBase MY1 MY2 MY3 MY5 MY7 Base MY1 MY2 MY3 MY5 MY7 Base MY1 MY2 MY3 MY5 MY7Bankfull Elevation (ft) 550.51 550.35545.35 545.41545.15 545.16Low Bank Height Elevation 550.51 550.35545.35 545.41545.15 545.16Bankfull Width (ft) 14.3 11.915.4 15.819.7 19.2Floodprone Width (ft) 100 100130 130N/A N/ABankfull Mean Depth (ft) 1.0 0.91.1 1.11.6 1.6Bankfull Max Depth (ft) 1.8 1.51.8 1.83.4 3.3Bankfull Cross‐Sectional Area (ft2)13.9 10.7 17.5 17.7 31.5 30.2Bankfull Width/Depth Ratio 14.7 13.413.5 14.012.3 12.2Bankfull Entrenchment Ratio17.0 8.48.5 8.2N/A N/ABankfull Bank Height Ratio21.0 < 1.01.0 1.0N/A N/ADimension and SubstrateBase MY1 MY2 MY3 MY5 MY7 Base MY1 MY2 MY3 MY5 MY7 Base MY1 MY2 MY3 MY5 MY7Bankfull Elevation (ft)540.51 540.58540.10 540.17550.02 550.02Low Bank Height Elevation 540.51 540.58540.10 540.17550.02 550.02Bankfull Width (ft) 13.6 13.915.0 12.513.2 13.7Floodprone Width (ft) 120 120N/A N/AN/A N/ABankfull Mean Depth (ft) 1.1 1.01.3 1.61.0 0.9Bankfull Max Depth (ft) 1.9 1.92.9 2.72.0 1.9Bankfull Cross‐Sectional Area (ft2)14.3 14.4 20.0 19.6 12.9 12.8Bankfull Width/Depth Ratio 12.9 13.411.2 8.013.5 14.7Bankfull Entrenchment Ratio18.8 8.6N/A N/AN/A N/ABankfull Bank Height Ratio21.0 1.0N/A N/AN/A N/A1Entrenchment Ratio is the flood prone width divided by the bankfull width.2Bank Height Ratio is the low bank height divided by the max depth of the bankfull channel.*Morphological survey and analysis not required for MY4 and MY6.Cross‐Section 4 (Riffle)Cross‐Section 5 (Pool)Cross‐Section 6 (Pool)UT1 Reach 1Cross‐Section 1 (Riffle)Cross‐Section 2 (Riffle)Cross‐Section 3 (Pool)UT1 Reach 1UT2 Reach 2 Table 9. Morphology and Hydraulic Summary (Dimensional Parameters ‐ Cross‐Section)Bethel Branch Mitigation Site       USACE Action ID No. 2016‐02365Monitoring Year 1 ‐ 2019Dimension and SubstrateBase3MY1 MY2 MY3 MY5 MY7 Base MY1 MY2 MY3 MY5 MY7 Base MY1 MY2 MY3 MY5 MY7Bankfull Elevation (ft)549.83 549.92545.15 545.19548.60 548.71Low Bank Height Elevation 549.83 549.92545.15 545.19548.60 548.71Bankfull Width (ft) 7.8 7.910.6 10.17.2 9.0Floodprone Width (ft) 130 130190 190200 200Bankfull Mean Depth (ft) 0.5 0.60.6 0.60.5 0.5Bankfull Max Depth (ft) 0.8 0.90.9 1.00.8 0.9Bankfull Cross‐Sectional Area (ft2)4.3 4.9 6.0 5.8 3.7 4.3Bankfull Width/Depth Ratio 14.1 12.818.8 17.613.9 18.8Bankfull Entrenchment Ratio116.8 16.517.9 18.827.9 22.2Bankfull Bank Height Ratio21.0 1.11.0 < 1.01.0 1.1Dimension and SubstrateBase MY1 MY2 MY3 MY5 MY7Bankfull Elevation (ft) 548.16 548.16Low Bank Height Elevation 548.16 548.16Bankfull Width (ft) 9.1 9.3Floodprone Width (ft) N/A N/ABankfull Mean Depth (ft) 1.1 1.0Bankfull Max Depth (ft) 1.8 1.7Bankfull Cross‐Sectional Area (ft2)10.3 9.6Bankfull Width/Depth Ratio 8.1 9.0Bankfull Entrenchment Ratio1N/A N/ABankfull Bank Height Ratio3N/A N/A1Entrenchment Ratio is the flood prone width divided by the bankfull width.2Bank Height Ratio is the low bank height divided by the max depth of the bankfull channel.3Cross‐Section 7 bankfull elevation was misjudged at As‐Built, baseline calculations were adjusted during MY1.*Morphological survey and analysis not required for MY4 and MY6.UT2 Reach 3Cross‐Section 8 (Riffle)UT3Cross‐Section 9 (Riffle)UT3Cross‐Section 10 (Pool)UT2 Reach 2Cross‐Section 7 (Riffle) Bankfull Dimensions 10.7 x-section area (ft.sq.) 11.9 width (ft) 0.9 mean depth (ft) 1.5 max depth (ft) 12.5 wetted perimeter (ft) 0.9 hydraulic radius (ft) 13.4 width-depth ratio 100.0 W flood prone area (ft) 8.4 entrenchment ratio < 1.0 low bank height ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots Cross-Section 1-UT1 Reach 1 547 549 551 553 555 0 10 20 30 40 50 60Elevation (ft)Width (ft) 101+65 Riffle MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 17.7 x-section area (ft.sq.) 15.8 width (ft) 1.1 mean depth (ft) 1.8 max depth (ft) 16.4 wetted perimeter (ft) 1.1 hydraulic radius (ft) 14.0 width-depth ratio 130.0 W flood prone area (ft) 8.2 entrenchment ratio 1.0 low bank height ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Cross-Section 2-UT1 Reach 1 Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots 542 544 546 548 550 0 10 20 30 40 50 60 70Elevation (ft)Width (ft) 111+56 Riffle MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 30.2 x-section area (ft.sq.) 19.2 width (ft) 1.6 mean depth (ft) 3.3 max depth (ft) 20.7 wetted perimeter (ft) 1.5 hydraulic radius (ft) 12.2 width-depth ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots Cross-Section 3-UT1 Reach 1 540 542 544 546 548 0 10 20 30 40 50 60 70Elevation (ft)Width (ft) 112+00 Pool MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull Dimensions 14.4 x-section area (ft.sq.) 13.9 width (ft) 1.0 mean depth (ft) 1.9 max depth (ft) 14.6 wetted perimeter (ft) 1.0 hydraulic radius (ft) 13.4 width-depth ratio 120.0 W flood prone area (ft) 8.6 entrenchment ratio 1.0 low bank height ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Cross-Section 4-UT1 Reach 1 Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots 537 539 541 543 545 0 10 20 30 40 50 60 70Elevation (ft)Width (ft) 122+02 Riffle MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 19.6 x-section area (ft.sq.) 12.5 width (ft) 1.6 mean depth (ft) 2.7 max depth (ft) 14.2 wetted perimeter (ft) 1.4 hydraulic radius (ft) 8.0 width-depth ratio Survey Date:11/2019 Field Crew:Wildlands Engineering Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots Cross-Section 5-UT1 Reach 1 Monitoring Year 1 - 2019 View Downstream 536 538 540 542 544 0 10 20 30 40 50 60 70Elevation (ft)Width (ft) 122+37 Pool MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull Dimensions 12.8 x-section area (ft.sq.) 13.7 width (ft) 0.9 mean depth (ft) 1.9 max depth (ft) 14.4 wetted perimeter (ft) 0.9 hydraulic radius (ft) 14.7 width-depth ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Cross-Section 6-UT2 Reach 2 Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots 547 549 551 553 555 0 10 20 30 40 50 60Elevation (ft)Width (ft) 220+79 Pool MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull Dimensions 4.9 x-section area (ft.sq.) 7.9 width (ft) 0.6 mean depth (ft) 0.9 max depth (ft) 8.2 wetted perimeter (ft) 0.6 hydraulic radius (ft) 12.8 width-depth ratio 130.0 W flood prone area (ft) 16.5 entrenchment ratio 1.1 low bank height ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Cross-Section 7-UT2 Reach 2 Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots 546 548 550 552 554 0 10 20 30 40 50 60Elevation (ft)Width (ft) 221+10 Riffle MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 5.8 x-section area (ft.sq.) 10.1 width (ft) 0.6 mean depth (ft) 1.0 max depth (ft) 10.4 wetted perimeter (ft) 0.6 hydraulic radius (ft) 17.6 width-depth ratio 190.0 W flood prone area (ft) 18.8 entrenchment ratio < 1.0 low bank height ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Cross-Section 8-UT2 Reach 3 Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots 542 544 546 548 550 0 10 20 30 40 50Elevation (ft)Width (ft) 226+33 Riffle MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 4.3 x-section area (ft.sq.) 9.0 width (ft) 0.5 mean depth (ft) 0.9 max depth (ft) 9.4 wetted perimeter (ft) 0.5 hydraulic radius (ft) 18.8 width-depth ratio 200.0 W flood prone area (ft) 22.2 entrenchment ratio 1.1 low bank height ratio Survey Date:11/2019 Field Crew:Wildlands Engineering Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots Cross-Section 9-UT3 Monitoring Year 1 - 2019 View Downstream 545 547 549 551 553 0 10 20 30 40 50 60Elevation (ft)Width (ft) 307+74 Riffle MY0 (5/2019)MY1 (11/2019)Bankfull Bankfull (Based on MY0 Area)Floodprone Area Bankfull Dimensions 9.6 x-section area (ft.sq.) 9.3 width (ft) 1.0 mean depth (ft) 1.7 max depth (ft) 10.3 wetted perimeter (ft) 0.9 hydraulic radius (ft) 9.0 width-depth ratio Survey Date:11/2019 Field Crew:Wildlands Engineering View Downstream Cross-Section 10-UT3 Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Cross-Section Plots 544 546 548 550 552 0 10 20 30 40 50 60Elevation (ft)Width (ft) 307+95 Pool MY0 (5/2019)MY1 (11/2019)Bankfull Table 10. Bank Pin Exposure Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 Upstream 0.0 (in) Midstream 0.0 Downstream 0.0 Upstream 0.0 Midstream 0.0 Downstream 0.0 Upstream 0.0 Midstream 0.0 Downstream 0.0 Upstream 0.0 Midstream 0.0 Downstream 0.0 UT1 Reach 1 (112+00) UT1 Reach 1 (122+30) UT2 Reach 2 (220+70) UT3 (307+50) PinLocation Monitoring Year (Date Observed) MY7MY6MY5MY4MY3MY2MY1 (11/2019) APPENDIX 5. Hydrology Summary Data and Plots USACE Action ID No. 2016-02365 Reach Date of Data Download Date of Occurrence Method UT1 11/19/2019 None UT2 11/19/2019 None UT3 11/19/2019 None Monthly Rainfall Data Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Monitoring Year 1 - 2019 2 30th and 70th percentile rainfall data collected from weather station Siler City 2 N (USDA, 2019) Table 11. Verification of Bankfull Events Bethel Branch Mitigation Site Monitoring Year 1 - 2019 Crest Gage/ Pressure Transducer 1 2019 monthly rainfall from USDA Station SILER CITY 2 N 0 1 2 3 4 5 6 7 8 Jan-19 Feb-19 Mar-19 Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19 Dec-19Precipitation (in)Date 30-70 Percentile Graph for Rainfall in 2019 for Siler City, NC 2019 Monthly Rainfall 30th Percentile 70th Percentile Table 12. Wetland Gage Attainment Summary Bethel Branch Mitigation Site Monitoring Year 1 - 2019 MY1 (2019)MY2 (2020)MY3 (2021)MY4 (2022)MY5 (2023)MY6 (2024)MY7 (2025) 1 Yes/25 Days (10.2%) 2 Yes/34 Days (13.9%) 3 Yes/23 Days (9.4%) 4 Yes/47 Days (19.2%) 1Success criterion is presence of a free groundwater surface within 12 inches of the soil surface for a consecutive 8.0% of the growing season. Summary of Groundwater Gage Results for Monitoring Years 1 through 7 Gage Success Criteria Achieved1/Max Consecutive Days During Growing Season (Percentage) USACE Action ID No. 2016-02365 Groundwater Gage Plots Monitoring Year 1 - 2019 Wetland RE1 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Start of Growing Season3/18/2019End of Growing Season11/17/201920 days FebMarAprMayJunJulAugSepOctNovDec0.0 1.0 2.0 3.0 4.0 -50 -40 -30 -20 -10 0 10 20 Rainfall (in)Water Level (in)Monitoring Year 1 -2019 Rainfall Reference Gage Depth Gage #1 Criteria Level Bethel Branch Groundwater Gage #1 Groundwater Gage Plots Monitoring Year 1 - 2019 Wetland RE2 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Start of Growing Season3/18/2019End of Growing Season11/17/201920 days FebMarAprMayJunJulAugSepOctNovDec0.0 1.0 2.0 3.0 4.0 -50 -40 -30 -20 -10 0 10 20 Rainfall (in)Water Level (in)Monitoring Year 1 -2019 Rainfall Reference Gage Depth Gage #2 Criteria Level Bethel Branch Groundwater Gage #2 Groundwater Gage Plots Monitoring Year 1 - 2019 Wetland RE1 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Start of Growing Season3/18/2019End of Growing Season11/17/201920 days FebMarAprMayJunJulAugSepOctNovDec0.0 1.0 2.0 3.0 4.0 -50 -40 -30 -20 -10 0 10 20 Rainfall (in)Water Level (in)Monitoring Year 1 -2019 Rainfall Reference Gage Depth Gage #3 Criteria Level Bethel Branch Groundwater Gage #3 Groundwater Gage Plots Monitoring Year 1 - 2019 Wetland RE2 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 Start of Growing Season3/18/2019End of Growing Season11/17/201920 days FebMarAprMayJunJulAugSepOctNovDec0.0 1.0 2.0 3.0 4.0 -50 -40 -30 -20 -10 0 10 20 Rainfall (in)Water Level (in)Monitoring Year 1 -2019 Rainfall Reference Gage Depth Gage #4 Criteria Level Bethel Branch Groundwater Gage #4 Soil Temperature Probe Plot Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 JanFebMarAprMayJunJulAugSepOctNovDec30 40 50 60 70 80 90 100 Temperature (F)Monitoring Year 1 -2019 Soil Probe Temperature Criteria Level Bethel Branch Soil Temperature Probe Recorded In-stream Flow Events Monitoring Year 1 - 2019 Bethel Branch Mitigation Site USACE Action ID No. 2016-02365 30 days AprMayJunJulAugSepOctNovDec0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 555.0 555.2 555.4 555.6 555.8 556.0 556.2 556.4 Rainfall (in)Water Level (ft)Monitoring Year 1 -2019 Rainfall UT3 Water Depth Thalweg Elevation Bankfull Bethel Branch: In-Stream Flow Gage for UT3