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HomeMy WebLinkAbout20160404 Ver 1_Year 2 Monitoring Report_2019_20200110ID#* 20160404 Version* 1 Select Reviewer:* Mac Haupt Initial Review Completed Date 01/13/2020 Mitigation Project Submittal - 1/10/2020 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* V Stream r Wetlands r- Buffer r- Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* LINDSAY CROCKER Project Information .................................................................................................................................................................. ID#:* 20160404 Existing IDY Project Type: r DMS r Mitigation Bank Project Name: Edwards Johnson County: Johnston Document Information Email Address:* lindsay.crocker@ncdenr.gov Version: *1 Existing Version Mitigation Document Type:* Mitigation Monitoring Plans File Upload: EdwardsJohnson_97080_MY2_2019.pdf 13.78MB Rease upload only one RDFcf the conplete file that needs to be subnitted... Signature Print Name:* LINDSAY CROCKER Signature:* .,cry. �`��-aE,��• Monitoring Report – Year 2 FINAL VERSION Edwards-Johnson Mitigation Project Calendar Year of Data Collection: 2019 NCDEQ DMS Project Identification # 97080 NCDEQ DMS Contract # 6825 Neuse River Basin (Cataloging Unit 03020201) USACE Action ID Number: SAW-2016-00883 NCDEQ DWR Project # 2016-0404 Johnston County, NC Contracted Under RFP # 16-006477 Data Collection Period: June-October 2019, Submission Date: December 2019 Prepared for: North Carolina Department of Environmental Quality Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 Prepared by: December 31, 2019 NC Department of Environmental Quality Division of Mitigation Services Attn: Lindsay Crocker 217 West Jones Street, Suite 3000-A Raleigh, NC 27603 RE: WLS Responses to NCDEQ DMS Review Comments for Task 8 Draft Monitoring Report Year 2 for the Edwards-Johnson Mitigation Project, NCDEQ DMS Full-Delivery Project ID #97080, Contract #006825, Neuse River Basin, Cataloging Unit 03020201, Johnston County, NC Dear Ms. Crocker: Water & Land Solutions, LLC (WLS) is pleased to present the Final Monitoring Report Year 2 for the Edwards-Johnson Mitigation Project to the North Carolina Department of Environmental Quality (NCDEQ) Division of Mitigation Services (DMS). The Final Monitoring Report Year 2 were developed by addressing NCDEQ DMS’s review comments. Under this cover, we are providing one hard copy of the Final Monitoring Report Year 2, and the required digital data for each (the .pdf copies of the entire updated reports and the updated digital data) via CDs. We are providing our written responses to NCDEQ DMS’s review comments on the Draft Monitoring Report Year 2 below. Each of the DMS review comments is copied below in bold text, followed by the appropriate response from WLS in regular text: Report: 1.DMS Comment: Page 6, Stream Hydrology. DMS understands that 2 bankfull events were documented in MY2. However, there must be two bankfull events in two separate years in order to achieve the bankfull standard credit release. Because MY1 only had one bankfull event, and the monitoring device was not installed until the end of MY1, that year is not eligible. Please update the report wording. WLS Response: WLS has updated the wording on Page 6 of the report. 2.DMS Comment: Page 7, vegetation. The average performance standard is based on a per plot basis and not an average. Update verbiage to reflect. WLS Response: WLS has updated the appropriate verbiage to reflect the correct average performance standards. 3.DMS Comment: As discussed in the field, update wording to explain that replant area will be where low density was discovered, rather than listing vegetation plots. WLS Response: Wording has been updated in the report to reference low-density areas for replanting prior to March 2020. 4.DMS Comment: As discussed, there was a small encroachment area along R1 that was replanted in MY2. Please provide the number of stems and species. WLS Response: The encroachment area was planted with species from the approved planting list in the Mitigation Plan and totaled approximately 27 stems. 5.DMS Comment: Ensure that replant stock is in keeping with the Mitigation Plan species for MY3. WLS Response: Re-planting will be done only with species from the approved plant list in the Mitigation Plan. 6.DMS Comment: The Mitigation Plan states that success is based on planted species, but the 2016 IRT guidance does allow volunteers to be counted toward success, if they were on the planted list. It may be prudent for WLS to note and / or present information that way if applicable. WLS Response: Volunteer species will not be counted towards success in this report. In future reports they will be counted toward success if they are surviving for at least two years, are at least 18” tall, and were species in the approved planting plan. The total number of planted and recruited stems is available in Table 7. 7.DMS Comment: Section 5.6 location of the wetland gauges was discussed in field. Ensure this is in keeping with DWR request. WLS Response: WLS has installed the necessary monitoring gauge per the DMS request. All gauge data will be available for MY3. 8.DMS Comment: X5- check change from BHR (looks like it should be positive, not -10%). WLS Response: WLS has checked all BHR’s to remove any negative percentages. 9.DMS Comment: Table 8- please clarify that measurement is height above bankfull. WLS Response: Table 8 measurement was clarified. Digital Deliverables: 1.DMS Comment: Morphology - Please submit the spreadsheets that include the cumulative overlays of the XS as shown in the report (all years). Include the particle distribution summary parameters in the morph summary tables. Check BHR calcs for XS5 and note that the percent change in the BHR should not be negative for that XS. WLS Response: WLS added the XS spreadsheets including the cumulative overlays to the e-data submittal package. D50 particle distribution was added to the morphology summary table and represents the average across the site for all riffles and pools. 2.DMS Comment: Calculation of XSA and Max depth are to completed using TOB in keeping with methods specified in the Industry Technical Work group memorandum. For clarity make sure the reader is aware that these methods are being employed. For example, please include a footnote to the effect: “Bank Height Ratio is calculated based on the As-built (MY0) cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.” WLS Response: WLS added footnote to all XS spreadsheets. Note: WLS uses MY1 in place of as-built (MY0) due to issues of the as-built survey which were identified in MY1. 3.DMS Comment: Hydrology Data – Please make note of the gauge type (e.g. transducer, RDS etc.) used in the excel data file. Please also label any probe or benchmark elevations, the raw and corrected readings of the water elevations and any offsets applied. DMS needs to be able to clearly identify these key elevations before incorporating these into the DMS database permitting independent calculation/verification. The DMS Excel template is an example of what is needed for reference and is required for use as part of RFPS within the last several years (available here: https://ncdenr.s3.amazonaws.com/s3fs- public/Mitigation%20Services/Document%20Management%20Library/Guidance%20and%20Template% 20Documents/7_Mon_Baseline_and_Annual_Rep_Tables%20-%20Jun%202017.xlsx). WLS Response: WLS has updated the appropriate spreadsheet in the excel data file in accordance with the template. 4.DMS Comment: Include precipitation data in the Hydrology files. WLS Response: WLS has added precipitation data to the appropriate hydrology file. 5. DMS Comment: Conservation Easement Shapefile- We need to determine if there is an issue with the Conservation easement file and the metes and bounds provided by the surveyor. DMS will review. WLS Response: WLS confirmed metes and bounds provided by the surveyor are correct. Table of Contents 1 Project Summary ................................................................................................................................... 1 2 Project Background ............................................................................................................................... 1 2.1 Project Location, Setting, and Existing Conditions........................................................................ 1 2.2 Mitigation Project Goals and Objectives ....................................................................................... 1 2.3 Project History, Contacts, and Timeframe .................................................................................... 2 3 Project Mitigation Components ............................................................................................................ 2 3.1 Stream Mitigation Types and Approaches .................................................................................... 2 3.1.1 R1 Preservation ..................................................................................................................... 3 3.1.2 R2 Restoration ....................................................................................................................... 3 3.1.3 R3 (Upper Reach) Restoration .............................................................................................. 3 3.1.4 R3 (Lower Reach) Preservation ............................................................................................. 3 3.1.5 R4 Restoration ....................................................................................................................... 4 4 Performance Standards ........................................................................................................................ 4 4.1 Streams ......................................................................................................................................... 5 4.1.1 Stream Hydrology ................................................................................................................. 5 4.1.2 Stream Profiles, Vertical Stability, and Floodplain Access .................................................... 5 4.1.3 Stream Horizontal Stability ................................................................................................... 5 4.1.4 Streambed Material Condition and Stability ........................................................................ 5 4.1.5 Jurisdictional Stream Flow .................................................................................................... 6 4.2 Vegetation ..................................................................................................................................... 6 5 Monitoring Year 2 Assessment and Results .......................................................................................... 6 5.1 Stream Hydrology ......................................................................................................................... 6 5.2 Stream Horizontal & Vertical Stability .......................................................................................... 6 5.3 Streambed Material Condition and Stability ................................................................................ 7 5.4 Jurisdictional Stream Flow Documentation .................................................................................. 7 5.5 Vegetation ..................................................................................................................................... 7 5.6 Wetlands ....................................................................................................................................... 7 6 References ............................................................................................................................................ 9 LIST OF APPENDICES Appendix A Background Tables and Figures Table 1 Project Mitigation Components Table 2 Project Activity and Reporting History Table 3 Project Contacts Table 4 Project Information and Attributes Appendix B Visual Assessment Data Figure 1 Current Condition Plan View (CCPV) Table 5 Visual Stream Morphology Stability Assessment Table 5a Vegetation Condition Assessment Photos Stream Station Photographs Photos Vegetation Plot Photographs Appendix C Vegetation Plot Data Table 6 Planted and Total Stem Counts Appendix D Stream Measurement and Geomorphology Data Figure 2 MY2 Cross-Sections Figure 3 MY2 Pebble Count Table 7a Baseline Stream Data Summary Table 7b Cross-section Morphology Data Table 7c Stream Reach Morphology Data Appendix E Hydrologic Data Figure 4 Hydrologic Data Figure 5 Rainfall Data Table 8 Verification of Flow Events Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 1 1 Project Summary Water and Land Solutions, LLC (WLS) completed the construction and planting of the Edwards-Johnson Mitigation Project (Project) full-delivery project for the North Carolina Department of Environmental Quality (NCDEQ), Division of Mitigation Services (DMS) in March 2018. The Project is located in Johnston County, North Carolina between the Community of Archer Lodge and the Town of Wendell at 35.7251°, 78.35636°. The Project site is located in the NCDEQ Sub-basin 03-04-06, in the Lower Buffalo Creek Priority Sub-watershed 030202011504. The Project involved the restoration, preservation and permanent protection of four stream reaches (R1, R2, R3, and R4) totaling 3,729 linear feet of streams and their riparian buffers. Monitoring Year 2 (MY2) monitoring activities occurred between June and October 2019 (Table 2). This report presents the data for MY2. The Project meets the MY2 success criteria for stream hydrology, stream horizontal and vertical stability, and vegetation. Based on these results, the Project is expected to meet the Monitoring Year 3 (MY3) success criteria in 2020. 2 Project Background 2.1 Project Location, Setting, and Existing Conditions The Project site is located in the Lower Buffalo Creek Priority Sub-watershed 030202011504 study area of the Neuse 01 Regional Watershed Plan, in the Wake-Johnston Collaborative Local Watershed Plan, and in Targeted Local Watershed 03020201180050. The catchment area is 223 acres and has an impervious cover less than one percent. The dominant surrounding land uses are agriculture and mixed forest. Prior to construction, some of the riparian buffers were less than 50 feet wide. 2.2 Mitigation Project Goals and Objectives WLS established project mitigation goals and objectives based on the resource condition and functional capacity of the watershed to improve and protect diverse aquatic resources comparable to stable headwater stream systems within the Piedmont Physiographic Province. The proposed mitigation types and design approaches described in the final approved mitigation plan considered the general restoration and resource protection goals and strategies outlined in the 2010 Neuse River Basin Restoration Priority Plan (RBRP). The functional goals and objectives were further defined in the 2013 Wake-Johnston Collaborative Local Watershed Plan and 2015 Neuse 01 Regional Watershed Plan and include: • Reducing sediment and nutrient inputs to the upper Buffalo Creek Watershed, • Restoring, preserving and protecting wetlands, streams, riparian buffers and aquatic habitat, • Implementing agricultural BMPs and stream restoration in rural catchments together as “project clusters”. The following site-specific goals were developed to address the primary concerns outlined in the LWP and RWP and include: • Restore stream and floodplain interaction and geomorphically stable conditions by reconnecting historic flow paths and promoting more natural flood processes, • Improve and protect water quality by reducing streambank erosion, nutrient and sediment inputs, Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 2 • Restore and protect riparian buffer functions and habitat connectivity in perpetuity by recording a permanent conservation easement, • Implement agricultural BMPs to reduce nonpoint source inputs to receiving waters. To accomplish these site-specific goals, the following function-based objectives will be measured and included with the performance standards to document overall project success as described in the table below: Functional Category (Level) Functional Goal / Parameter Functional Design Objective Hydrology (Level 1) Improve Base Flow Remove man-made pond dam and restore a more natural flow regime and aquatic passage. Hydraulics (Level 2) Reconnect Floodplain / Increase Floodprone Area Widths Lower BHRs from >2.0 to 1.0-1.2 and maintain ERs at 2.2 or greater. Geomorphology (Level 3) Improve Bedform Diversity Increase riffle/pool percentage to 70/30 and pool-to-pool spacing ratio 4-7X bankfull width. Increase Lateral Stability Reduce BEHI/NBS streambank erosion rates comparable to downstream reference condition and stable cross-section values. Enhance Riparian Buffer Vegetation Plant or protect native species vegetation a minimum 50’ wide from the top of the streambanks with a composition/density comparable to reference condition. Physicochemical (Level 4) Improve Water Quality Install water quality treatment basins along the riparian corridor and reduce sediment and nutrient levels. Biology (Level 5) Improve Macroinvertebrate Community and Aquatic Species Health Incorporate native woody debris and bedform diversity into channel and change DWR bioclassification rating from ‘Poor’ to a minimum ‘Fair’ by Monitoring Year 7. 2.3 Project History, Contacts, and Timeframe The chronology of the project history and activity is presented in Table 2. Relevant project contact information is presented in Table 3. Relevant project background information is presented in Table 4. 3 Project Mitigation Components Refer to Figure 1 and Table 1 for the project components/asset information. A recorded conservation easement consisting of 10.96 acres protects and preserves all stream reaches, existing wetland areas, and riparian buffers in perpetuity. 3.1 Stream Mitigation Types and Approaches Stream restoration practices involved raising the existing streambed and reconnecting the stream to the relic floodplain. Some portions of the existing degraded channels that were abandoned within the restoration areas were filled to decrease surface and subsurface drainage and raise the local water table. The project also included restoring, enhancing and protecting riparian buffers and riparian wetlands within the conservation easement. The vegetative components of this project included stream bank, floodplain, and transitional upland zones planting. The Site was planted with native species riparian buffer Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 3 vegetation (Appendix C) and now protected through a permanent conservation easement. Table 1 and Figure 1 (Appendix A) provide a summary of the project components. 3.1.1 R1 Preservation Preservation was implemented along this reach since the existing stream and wetland system is mostly stable with a mature riparian buffer due to minimal historic impacts. The preservation area is being protected in perpetuity through a permanent conservation easement. This approach will extend the wildlife corridor from the Buffalo Creek floodplain boundary throughout a majority of the riparian valley, while providing a hydrologic connection and critical habitat linkage within the catchment area. 3.1.2 R2 Restoration Work along R2 involved a Priority Level I Restoration approach by raising the bed elevation and reconnecting the stream with its abandoned floodplain. This approach will promote more frequent over bank flooding in areas with hydric soils, thereby creating favorable conditions for wetland re- establishment. The reach was restored using appropriate riffle-pool morphology with a conservative meander planform geometry that accommodates the valley slope and width. This approach allowed restoration of a stable channel form with appropriate bedform diversity, as well as, improved biological functions through increased aquatic and terrestrial habitats. Proposed in-stream structures included constructed wood riffles for grade control and habitat, log j-hook vanes, and log weirs/jams for encouraging step-pool formation energy dissipation, bank stability, and bedform diversity. Riparian buffers greater than 50 feet were enhanced and will be protected along the entire length of R2. Mature trees and significant native vegetation were protected and incorporated into the design. Bioengineering techniques such as vegetated geolifts and live stakes were also used to protect streambanks and promote woody vegetation growth along the streambanks. The existing unstable channel was filled to an elevation sufficient to connect the new bankfull channel to its active floodplain using suitable fill material excavated from the newly restored channels and remnant spoil piles. Additionally, water quality treatment basins were installed to reduce direct sediment and nutrient inputs. 3.1.3 R3 (Upper Reach) Restoration A Priority Level I Restoration approach was implemented for the upstream portion to improve stream functions and water quality. Prior to restoration activities, the reach exhibited both lateral and vertical instability, as shown by active headcuts and moderate bank erosion. A new single-thread meandering channel was constructed offline in this area before reconnecting with multiple relic channel features and the existing channel alignment farther downstream. In-stream structures, including log riffles, log weirs and log vanes were used to dissipate flow energy, protect streambanks, and eliminate potential for future incision. Shallow floodplain depressions and vernal pools were created or preserved in the floodplain to provide habitat diversity, nutrient cycling, and improved treatment of overland flows. Restored streambanks were graded to stable side slopes and the floodplain was reconnected to further promote stability and hydrological function. 3.1.4 R3 (Lower Reach) Preservation Preservation was implemented along this reach since the existing stream and wetland system is mostly stable with a mature riparian buffer due to minimal historic impacts. The preservation is being protected in perpetuity through a permanent conservation easement. This approach will extend the wildlife corridor Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 4 from the Buffalo Creek floodplain boundary throughout a majority of the riparian valley, while providing a hydrologic connection and critical habitat linkage within the catchment area. 3.1.5 R4 Restoration The restoration of R4 involved raising the existing bed elevation gradually to reconnect the stream with its active floodplain. Prior to restoration activities, the existing channel began experiencing backwater conditions and sediment aggradation from a man-made pond. The failing dam and remnant spoil piles were removed, and the pond was drained to reconnect the new stream channel with its geomorphic floodplain. Channel and floodplain excavation in this reach segment included the removal of shallow legacy sediments (approx. 12” depth) to accommodate a new bankfull channel and in-stream structures, as well as a more natural step-pool morphology using grade control structures in the steeper transitional areas. Shallow floodplain depressions were created to provide habitat diversity, nutrient cycling, and improved treatment of overland flows. Riparian buffers greater than 50 feet were restored and protected along all R4. 4 Performance Standards The applied success criteria for the Project will follow necessary performance standards and monitoring protocols presented in final approved mitigation plan. Annual monitoring and semi-annual site visits will be conducted to assess the condition of the project throughout the monitoring period. Monitoring activities will be conducted for a period of seven years with the final duration dependent upon performance trends toward achieving project goals and objectives. The following Proposed Monitoring Plan Summary from the approved final mitigation plan summarizes the measurement methods and performance standards. Specific success criteria components and evaluation methods follow. Functional Category (Level) Project Goal / Parameter Measurement Method Performance Standard Potential Functional Uplift Hydrology (Level 1) Improve Base Flow Duration and Overbank Flows (i.e. channel forming discharge) Remove man-made pond, pressure transducer, regional curve, regression equations, catchment assessment Maintain seasonal flow for a minimum of 30 consecutive days during normal annual rainfall. Create a more natural and higher functioning headwater flow regime and provide aquatic passage. Hydraulics (Level 2) Reconnect Floodplain / Increase Floodprone Area Widths Bank Height Ratio, Entrenchment Ratio, crest gage Maintain average BHRs at 1.2 and increase ERs at 2.2 or greater and document bankfull/geomorphically significant flow events. Provide temporary water storage and reduce erosive forces (shear stress) in channel during larger flow events. Geomorphology (Level 3) Improve Bedform Diversity Pool to Pool spacing, riffle-pool sequence, pool max depth ratio, Longitudinal Profile Increase riffle/pool percentage and pool-to-pool spacing ratios compared to reference reach conditions. Provide a more natural stream morphology, energy dissipation and aquatic habitat/refugia. Increase Vertical and Lateral Stability BEHI / NBS, Cross- sections and Longitudinal Profile Surveys, visual assessment Decrease streambank erosion rates comparable to reference condition cross- section, pattern and vertical profile values. Reduce sedimentation, excessive aggradation, and embeddedness to allow for interstitial flow habitat. Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 5 Geomorphology (Level 3) Establish Riparian Buffer Vegetation CVS Level I & II Protocol Tree Veg Plots (Strata Composition and Density), visual assessment Within planted portions of the site, a minimum of 320 stems per acre must be present at year three; a minimum of 260 stems per acre must be present at year five; and a minimum of 210 stems per acre must be present at year seven. Increase woody and herbaceous vegetation will provide channel stability and reduce streambank erosion, runoff rates and exotic species vegetation. Physicochemical (Level 4) Improve Water Quality N/A N/A Reduction of excess nutrients and organic pollutants will increase the hyporheic exchange and dissolved oxygen (DO) levels. Biology (Level 5) Improve Benthic Macroinvertebrate Communities and Aquatic Health DWR Small Stream/ Qual v4 sampling, IBI (MY3, MY5, MY7) N/A Increase leaf litter and organic matter critical to provide in-stream cover/shade, wood recruitment, and carbon sourcing. Note: Level 4 and 5 project parameters and monitoring activities will not be tied to performance standards nor required to demonstrate success for credit release. 4.1 Streams 4.1.1 Stream Hydrology Two separate bankfull events must be documented within the seven-year monitoring period. These two bankfull events must occur in separate years. Otherwise, the stream monitoring will continue until two bankfull events have been documented in separate years. In addition to the two bankfull flow events, two geomorphically significant flow events (Qgs=0.66Q2) must also be documented during the monitoring period. There are no temporal requirements regarding the distribution of the geomorphically significant flows. 4.1.2 Stream Profiles, Vertical Stability, and Floodplain Access Stream profiles, as a measure of vertical stability will be evaluated by looking at Bank Height Ratios (BHR). The BHR shall not exceed 1.2 along the restored project reaches. This standard only applies to the restored project reaches where BHRs were corrected through design and construction. In addition, observed bedforms should be consistent with those observed for channels of the design stream type(s). 4.1.3 Stream Horizontal Stability Cross-sections will be used to evaluate horizontal stream stability. There should be little change expected in as-built restoration cross-sections. If measurable changes do occur, they should be evaluated to determine if the changes represent a movement toward a more unstable condition (e.g., downcutting, erosion) or a movement towards increased stability (e.g., settling, vegetation establishment, deposition along the streambanks, 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. 4.1.4 Streambed Material Condition and Stability After construction, there should be minimal change in the particle size distribution of the streambed materials, over time, given the current watershed conditions and future sediment supply regime. Since the Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 6 streams are predominantly sand-bed systems with minimal fine/coarse gravel, some coarsening is anticipated after restoration activities, however significant changes in particle size distribution are not expected. Streambed material condition is supplementary and is not part of success criteria. 4.1.5 Jurisdictional Stream Flow The restored stream systems must be classified as at least intermittent, and therefore must exhibit base flow with at least 30 days of continuous flow during a year with normal rainfall conditions as described in the approved mitigation plan. 4.2 Vegetation Vegetative restoration success for the project during the intermediate monitoring years will be based on the survival of at least 320, three-year-old trees per acre at the end of Year 3 of the monitoring period and at least 260, five-year-old, trees per acre at the end of Year 5 of the monitoring period. The final vegetative restoration success criteria will be achieving a density of not less than 210, seven-year-old stems per acre in Year 7 of monitoring. Planted vegetation (for projects in coastal plain and piedmont counties) must average seven feet in height at Year 5 of monitoring and 10 feet in height at Year 7 of monitoring. Volunteer stems will only be counted toward success if they are surviving for at least 2 years, are at least 18” tall, and are species from the approved planting list. For all of the monitoring years (Year 1 through Year 7), the number of Red maple (Acer rubrum) stems cannot exceed 20 percent of the total stems in any of the vegetation monitoring plots. 5 Monitoring Year 2 Assessment and Results Annual monitoring was conducted during MY2 in accordance with the monitoring plan as described in the approved mitigation plan to document the site conditions. All monitoring device locations are depicted on the CCPV (Figure 1). MY2 monitoring results are provided in the appendices. The Project meets the MY2 success criteria for stream hydrology, stream horizontal and vertical stability. Vegetation plots 1 and 2 meet the required success criteria, plots 3 and 4 do not. 5.1 Stream Hydrology Monitoring to document the occurrence of the two required bankfull events (overbank flows) and the two required geomorphically significant flow events (Qgs=0.66Q2) within the monitoring period, along with floodplain access by flood flows, is being conducted using a crest gauge, installed on December 12, 2018, on the floodplain of and across the dimension of the restored channel at the left top of bank of Reach R2, immediately upstream of the confluence of Reach R2 and R4 (Figure 1), to record the watermark associated with the highest flood stage between monitoring site visits. Photographs are also being used to document the occurrence of debris lines and sediment deposition on the floodplain during monitoring site visits. At least three bankfull events occurred during MY2. These events were documented using the described photography (Table 8). 5.2 Stream Horizontal & Vertical Stability Visual assessment was utilized for assessment of MY2 horizontal and vertical stream stability. The visual assessments for each stream reach concluded that the MY2 stream channel pattern and longitudinal profiles, instream structure locations, still closely match the profile design parameters and MY0/baseline conditions. The MY2 plan form geometry or pattern still appears to fall within acceptable ranges of the design parameters for all restored reaches. Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 7 Per IRT request, a new cross section (X8) was added across R3 that spans the floodplain, 50 linear feet below X6 to document any changes in sediment migration and channel morphology. Cross section 7 was also extended on R3 to include more of the left floodplain. One area of significant erosion was found during the visual assessments. This area is approximately 15ft long and occurs in a pool at a meander bend of R4 at approximately STA 18+00. Photographs of the area can be found in Appendix B. This area will be monitored closely in MY3 to determine if remedial action will be needed. Overall, only minor channel adjustments in riffle slopes, pool depths and pattern were observed and therefore did not present a stability concern or indicate a need for immediate remedial action. 5.3 Streambed Material Condition and Stability A representative sediment sample was collected to assess streambed material condition and stability. The dominant substrate for the project was verified as coarse sand. The post-construction riffle substrate sampling indicated no significant change in streambed material condition or stability during MY2. 5.4 Jurisdictional Stream Flow Documentation Jurisdictional stream flow documentation and monitoring of restored intermittent reaches is achieved using a flow gage (continuous-read pressure transducers) within the thalweg of the channel towards the middle portion of the Reach R4 (Figure 1). Additionally, to determine if rainfall amounts are normal for the given year, precipitation data was obtained from CLAY Central Crops Research Station in Johnston County, approximately nine miles southwest of the site. The flow gage documented that the stream exhibited surface flow for a minimum of 30 consecutive days throughout some portion of the year during a year with normal rainfall conditions (Figure 4). 5.5 Vegetation Vegetation monitoring for MY2 was conducted utilizing the four vegetation monitoring plots, with monitoring conducted in accordance with the CVS-EEP Level I & II Monitoring Protocol (CVS, 2008) and DMS Stream and Wetland Monitoring Guidelines (DMS, 2017). See Figure 1 in Appendix B for the vegetation monitoring plot locations. Summary data and photographs of each plot can be found in Appendix B. Areas of low stem density were identified during MY1 in the vicinity of Plots 3 and 4 and were replanted in April 2019 (Figure 1) with approximately 176 stems with species from the approved planting list from the mitigation plan. In addition, a slight buffer encroachment along R2 was replanted with approximately 27 stems with species from the approved planting list from the mitigation plan and was left un-disturbed during MY2. In MY2 Plots 3 and 4 failed to meet the year 3 minimum of 320 stems per acre. For Plot 3, loss in stem density from MY1 to MY2 is due to increased wetness and a dense herbaceous layer. Plot 4 saw a low survivability due to poor subsoil planting conditions. The MY2 vegetation monitoring was also conducted utilizing visual assessment throughout the easement. Two areas of concern were found (VPA1 and VPA2) adjacent to Plots 4 and 3 respectively (Figure 1). Minor soil sloughing is occurring in VPA1 and will be addressed with fill and re-grading prior to replanting. Additionally, poor subsoil planting conditions occur throughout the area (pH ~5.5). Containerized trees will be used in replanting of the area to increase survivability to MY3. VPA2 has experienced increased Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 8 wetness and a dense herbaceous layer. Before replanting, areas of dense herbaceous layers will be strip or spot treated with herbicide to allow for better tree establishment. Replanting of both VPA1 and VPA2 will occur prior to March 15th to meet success criteria for MY3 with species from the approved planting list from the mitigation plan. The results of the visual assessment did not indicate any additional significant negative changes to the existing vegetation community. 5.6 Wetlands Wetland mitigation credits are not contracted or proposed for this project. One groundwater monitoring well was installed during the baseline monitoring along Reach R3. An additional groundwater monitoring well was installed along Reach R3 in early January 2019 (Figure 4). All groundwater monitoring wells are pressure transducers. Per NCIRT correspondence, an additional well was to be installed in the wetland preservation area near station 37+00. Data for the additional well will be available in MY3. These wells were installed to document groundwater levels within the restoration area for reference and comparison to the preservation areas, at the request of the NCIRT (DWR). No performance standards for wetland hydrology success was proposed in the Mitigation Plan and therefore wetland mitigation monitoring is not included for this project. Water & Land Solutions Edwards-Johnson Mitigation Project FINAL Monitoring Report Year 2 Page 9 6 References 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. KCI Associates of NC, DMS. 2010. Using Pressure Transducers for Stream Restoration Design and Monitoring. Lee, M., Peet R., Roberts, S., Wentworth, T. CVS-NCEEP Protocol for Recording Vegetation, Version 4.1, 2007. North Carolina Department of Environmental Quality, Division of Mitigation Services, Wildlands Engineering, Inc. 2015. Neuse 01 Regional Watershed Plan Phase II. Raleigh, NC. North Carolina Department of Environmental Quality, Division of Mitigation Services, 2017. Annual Monitoring Report Format, Data and Content Requirement. Raleigh, NC. Rosgen, D. L., 1994. A Classification of Natural Rivers. Catena 22: 169-199. Rosgen, D.L., 1996. Applied River Morphology. Wildland Hydrology Books, Pagosa Springs, CO. Schafale, M. P., and A. S. Weakley. 1990. Classification of the natural communities of North Carolina, third approximation. North Carolina Natural Heritage Program. NCDENR Division of Parks and Recreation. Raleigh, NC. United States Army Corps of Engineers. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. Environmental Laboratory. US Army Engineer Waterways Experiment Station. Vicksburg, MS. ___. 1997. Corps of Engineers Wetlands Research Program. Technical Note VN-RS-4.1. Environmental Laboratory. U.S. Army Engineer Waterways Experiment Station. Vicksburg, MS. ___. 2003. Stream Mitigation Guidelines, April 2003, U.S. Army Corps of Engineers. Wilmington District. Water and Land Solutions, LLC (2017). Edwards-Johnson Mitigation Project Final Mitigation Plan. NCDMS, Raleigh, NC. Edwards-Johnson Mitigation Project Appendices Edwards-Johnson Mitigation Project Appendix A – Background Tables and Figures Table 1. Mitigation Assets and ComponentsEdwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) ExistingMitigation As-BuiltProject Wetland FootagePlan Footage orApproachComponent Position and orFootage or Acreage Restoration Priority Mitigation Mitigation(reach ID, etc.)1HydroType2Acreage Stationing AcreageLevel Level Ratio (X:1) Credits* Notes/CommentsR1611 10+00 -16+11 611611P- 10 61Invasive Control, Permanent Conservation Easement.R21007 16+11 - 27+94 11831180RPI 1 1183Full Channel Restoration, Invasive Control, Permanent Conservation Easement.R3 (upper629 27+94 - 36+09 815853RPI 1 815Full Channel Restoration, Invasive Control, Permanent Conservation Easement.R3 (lower)240 36+09 - 37+39 130149P- 10 13Invasive Control, Permanent Conservation Easement.R4815 10+00 - 19+36 951936R PI/PII 1 951Full Channel Restoration, Pond Removal, Invasive Control, Permanent Conservation Easement.Length and Area Summations by Mitigation CategoryOverall Assets SummaryStreamNon-riparian WetlandOverall(linear feet)(acres)Credits*Riverine Non-RiverineRestoration29493,023EnhancementEnhancement IEnhancement IICreation* Mitigation Credits are from the final approved mitigation plan, as verified by the as-built surveyPreservation741High Quality PresRP WetlandNR WetlandStreamRestoration LevelRiparian Wetland(acres)Asset Category Elapsed Time Since grading complete:1 yrs 6 months Elapsed Time Since planting complete:1 yrs 6 months Number of reporting Years0:2 Data Collection Completion or Activity or Deliverable Complete Delivery Project Contract Execution N/A 3/18/2016 Final Mitigation Plan Submittal N/A 9/29/2017 Section 404 General (Regional and Nationwide) Permit Verfication N/A 1/12/2017 Begin Construction N/A 3/23/2018 Mitigation Site Earthwork Completed N/A 5/5/2018 Mitigation Site Planting Completed N/A 5/5/2018 Installation of Monitoring Devices Completed N/A 5/14/2018 Installation of Survey Monumentation and Boundary Marking N/A 8/13/2018 As-built/Baseline (Year 0) Monitoring Report Submittal 6/23/2018 12/3/2018 Year 1 Monitoring Report Submittal 11/24/2018 12/4/2018 Year 2 Monitoring Report Submittal 10/18/2019 12/31/2019 Year 3 Monitoring Report Submittal N/A N/A Year 4 Monitoring Report Submittal N/A N/A Year 5 Monitoring Report Submittal N/A N/A Year 6 Monitoring Report Submittal N/A N/A Year 7 Monitoring Report Submittal N/A N/A Bolded items are examples of those items that are not standard, but may come up and should be included Non-bolded items represent events that are standard components over the course of a typical project, but the one listed may not be all inclusive. The above are obviously not the extent of potential relevant project activities, but are just provided as example as part of this exhibit. Table 2. Project Activity and Reporting History Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Mitigation Provider Water & Land Solutions, LLC7721 Six Forks Road, Suite 130, Raleigh, NC 27615Primary Project POC Catherine Manner Phone: 571-643-3165 Construction Contractor RiverWorks Construction114 W. Main Street, Suite 106, Clayton, NC 27520Primary Project POC Bill Wright Phone: 919-590-5193 Survey Contractor (Existing Condition Surveys) WithersRavenel 115 MacKenan Drive, Cary, NC 27511Primary Project POC Marshall Wight, PLS Phone: 919-469-3340 Survey Contractor (Conservation Easement, Construction and As- Builts Surveys) True Line Surveying, PC 205 West Main Street, Clayton, NC 27520Primary Project POC Curk T. Lane, PLS 919-359-0427 Planting Contractor RiverWorks Construction114 W. Main Street, Suite 106, Clayton, NC 27520Primary Project POC Bill Wright Phone: 919-590-5193 Seeding Contractor RiverWorks Construction114 W. Main Street, Suite 106, Clayton, NC 27520Primary Project POC Bill Wright Phone: 919-590-5193 Seed Mix Sources Green Resource5204 Highgreen Ct., Colfax, NC 27235Rodney Montgomery Phone: 336-215-3458 Nursery Stock Suppliers Foggy Mountain Nursery (Live Stakes)797 Helton Creek Rd, Lansing, NC 28643Glenn Sullivan Phone: 336-977-2958Dykes & Son Nursery (Bare Root Stock)825 Maude Etter Rd, Mcminnville, Tn 37110Jeff Dykes Phone: 931-668-8833 Monitoring Performers Water & Land Solutions, LLC7721 Six Forks Road, Suite 130, Raleigh, NC 27615Stream Monitoring POC Emily Dunngian Phone: 269-908-6306Vegetation Monitoring POC Emily Dunnigan Phone: 269-908-6306 Table 3. Project Contacts Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Reach 3 (upper) Reach 3 (lower) Reach 4 770 130 1176 unconfined unconfined unconfined 211 acres, 0.33 sq mi 223 acres, 0.35 sq mi 55 acres, 0.09 sq mi Perennial Perennial Intermittent C;NSW C; NSW C; NSW E5(incised) E5(incised) G5c/Pond C5 C5, D5 C5 IV V III/IV N/A Zone AE N/A Wetland 3 N/A Supporting Docs? Categorical Exclusion Categorical Exclusion Categorical Exclusion Categorical Exclusion N/A Categorical Exclusion Categorical ExclusionEssential Fisheries Habitat No N/A Coastal Zone Management Act (CZMA or CAMA)No N/A FEMA Floodplain Compliance Yes Water of the United States - Section 401 Yes Yes Yes Endangered Species Act No Yes Historic Preservation Act No N/A Restoration or enhancement method (hydrologic, vegetative etc.) Regulatory Considerations Parameters Applicable? Resolved? Water of the United States - Section 404 Yes Yes Drainage class Soil Hydric Status Source of Hydrology Size of Wetland (acres)N/A N/A Wetland Type (non-riparian, riparian riverine or riparian non-riverine) Mapped Soil Series Evolutionary trend (Simon)I III/IV FEMA classification N/A N/A Wetland Summary Information Parameters Wetland 1 Wetland 2 Perennial, Intermittent, Ephemeral Intermittent Perennial NCDWR Water Quality Classification C; NSW C; NSW Stream Classification (proposed)C5 C5 Stream Classification (existing)C5 G5c Table 4. Project Information and Attributes Project Name Edwards-Johnson Mitigation Project County Johnston Project Area (acres) 11.0 Reach 2 Length of reach (linear feet)611 1173 Project Drainage Area (Acres and Square Miles) 223 acres, 0.35 sq mi Project Drainage Area Percentage of Impervious Area 2.30% CGIA Land Use Classification 2.01.03, 2.99.05, 413, 4.98 (33% crops/hay, 16% pasture, 51% mixed forest) Project Coordinates (latitude and longitude) 35.7245361 N, -78.3570806 W Planted Acreage (Acres of Woody Stems Planted)3.69 Project Watershed Summary Information Valley confinement (Confined, moderately confined, unconfined) unconfined unconfined Drainage area (Acres and Square Miles) Piedmont Reach Summary Information Parameters Reach 1 River Basin Neuse DWR Sub-basin 30406 Physiographic Province 03020201USGS Hydrologic Unit 8-digit 96 acres, 0.15 sq mi 120 acres, 0.19 sq mi Edwards-Johnson Mitigation Project Appendix B – Visual Assessment Data ^_ ^_ ÓÓ Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó Ó #0 kj XY XY XY XY XY XY XYXY XY XY XY XY XY !>Wendell RdL a ke W e n d e ll R d 35+0016+1317+0018+0020+0022+0023+0024+0025+0026+0027+0031+0032+0033+0010+1311+0012+0013+0014+0015+0019+3619+0021+0028+0029+0030+0034+0016+0017+0018+0019+00 XS-8X S-7 XS-6XS-3XS-1 XS-5XS-4X S - 2 4 1 3 2 485/202 485/404 242/202 849/526 FIGURE1Edwards-Johnson Mitigation ProjectJohnston County, North Carolina NAD 1983 2011 State PlaneNorth Carolina FIPS 3200 FT US Current ConditionsPlan ViewMonitoring Year 2 Legend Conservation Easement #0 Crest gage !>Flow GageWetland Gage ^_Stream Reference Site Location Cross Sections XY Photo Points CVS Plot OriginsCVS Plots Success Criteria Met Success Criteria Not MetWater Quality F eaturesTop of StreambankPre-Construction Wetlands (2.4 acres)Low Stem Density Area (0.43 acres) kj Stream Problem Area Stream Miti gatio n Type Preservation Restoration Restoration (Field Adjustment) 0 230 460Feet ± NCDMS Contract No. 6825NCDMS Project No. 97080December 2019MY2 Access poin t:35.72617 °78.35283 ° Ae rial: G oog le Ea rth Winte r 20 19 R1 R2 R3 (u pper) R3 (lower) R4 Flow GageWetland Reference Gage 236+0037+00Wetland Gage 1 Stream Ba nk Erosion VPA1 VPA2 Wetland Gage 3 Table 5.Visual Stream Morphology Stability AssessmentProjectEdwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Reach IDR1, R2, R3 (upper) and R3 (lower)Assessed Length 36091. Bank 1. Scoured/ErodingBank lacking vegetative cover resulting simply from poor growth and/or scour and erosion115100%00100%*2. UndercutBanks 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% 0 0 100%3. Mass WastingBank slumping, calving, or collapse0 0 100% 0 0 100%1 15 100% 0 0 100%2. Engineered Structures1. Overall IntegrityStructures physically intact with no dislodged boulders or logs. 47 47 100%2. Grade ControlGrade control structures exhibiting maintenance of grade across the sill. 24 24 100%2a. PipingStructures lacking any substantial flow underneath sills or arms. 11 11 100%3. Bank ProtectionBank erosion within the structures extent of influence does not exceed 15%. (See guidance for this table in EEP monitoring guidance document) 14 14 100%4. HabitatPool forming structures maintaining ~ Max Pool Depth : Mean Bankfull Depth ratio > 1.6 Rootwads/logs providing some cover at base-flow.12 12 100%Number of Unstable SegmentsAdjusted % for Stabilizing Woody VegetationAmount of Unstable FootageTotals% Stable, Performing as IntendedNumber with Stabilizing Woody VegetationFootage with Stabilizing Woody VegetationMajor Channel CategoryChannelSub-CategoryMetricNumber Stable, Performing as IntendedTotal Number in As-built Table 5a. Vegetation Condition AssessmentProject Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Planted Acreage13.61. Bare AreasVery limited cover of both woody and herbaceous material. 1 acrePattern and Color0 0.00 0.0%2. Low Stem Density AreasWoody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria. 0.1 acres solid light blue 2 0.43 11.9%2 0.43 11.9%3. Areas of Poor Growth Rates or VigorAreas with woody stems of a size class that are obviously small given the monitoring year. 0.25 acresPattern and Color0 0.00 0.0%2 0.43 11.9%Easement Acreage210.974. Invasive Areas of Concern4Areas or points (if too small to render as polygons at map scale). 1000 SFPattern and Color0 0.00 0.0%5. Easement Encroachment Areas3Areas or points (if too small to render as polygons at map scale). nonePattern and Color0 0.00 0.0%CCPV DepictionNumber of PolygonsCombined Acreage% of Easement AcreageVegetation Category DefinitionsMapping Threshold% of Planted AcreageTotalCumulative TotalVegetation Category DefinitionsNumber of PolygonsMapping ThresholdCCPV DepictionCombined Acreage1= Enter the planted acreage within the easement. This number is calculated as the easement acreage minus any existing mature tree stands that were not subject to supplemental planting of the understory, the channel acreage,crossings or any other elements not directly planted as part of the project effort.2= The acreage within the easement boundaries.3= Encroachment may occur within or outside of planted areas and will therefore be calculated against the overall easement acreage. In the event a polygon is cataloged into items 1, 2 or 3 in the table and is the result of encroachment,the associated acreage should be tallied in the relevant item (i.e., item 1,2 or 3) as well as a parallel tally in item 5.4= Invasives may occur in or out of planted areas, but still within the easement and will therefore be calculated against the overall easement acreage. Invasives of concern/interest are listed below. The list of high concern spcies arethose with the potential to directly outcompete native, young, woody stems in the short-term (e.g. monitoring period or shortly thereafter) or affect the community structure for existing, more established tree/shrub stands over timeframesthat are slightly longer (e.g. 1-2 decades). The low/moderate concern group are those species that generally do not have this capacity over the timeframes discussed and therefore are not expected to be mapped with regularity, but can bemapped, if in the judgement of the observer their coverage, density or distribution is suppressing the viability, density, or growth of planted woodystems. Decisions as to whether remediation will be needed are based on the integration ofrisk factors by EEP such as species present, their coverage, distribution relative to native biomass, and the practicality of treatment. For example, even modest amounts of Kudzu or Japanese Knotweed early in the projects history willwarrant control, but potentially large coverages of Microstegium in the herb layer will not likley trigger control because of the limited capacitiesto impact tree/shrub layers within the timeframes discussed and the potential impacts of treatingextensive amounts of ground cover. Those species with the "watch list" designator in gray shade are of interest as well, but have yet to be observed across the state with any frequency. Those inred italicsare of particular interest giventheir extreme risk/threat level for mapping as points where isolated specimens are found, particularly ealry in a projects monitoring history. However, areas of discreet, dense patches will of course be mapped as polygons. The symbologyscheme below was one that was found to be helpful for symbolzing invasives polygons, particulalry for situations where the conditon for an area is somewhere between isolated specimens and dense, discreet patches. In any case, thepoint or polygon/area feature can be symbolized to describe things like high or low concern and species can be listed as a map inset, in legend items if the number of species are limited or in the narrative section of the executive summary. Reach R1, facing upstream, April 12, 2018 (MY-00) Reach R1, facing , , 2018 (MY-0 ) Reach R1, facing upstream,(MY-0 Reach R1, facing downstream, (MY-0 ) Reach R2, facing upstream, Sta 17+00, April 23, 2018 (MY-00)Reach R2, facing upstream, Sta 17+00, (MY-0 ) Reach R2, facing downstream, Sta 18+00, April 23, 2018 (MY-00)Reach R2, facing downstream, Sta 18+00, (MY-0 ) Reach R2, facing downstream, Sta 20+00, Sept 17, 2018 (MY-00)Reach R2, facing downstream, Sta 20+00, (MY-0 Reach R2, facing upstream, Sta 21+00, April 23, 2018 (MY-00)Reach R2, facing upstream, Sta 21+00, MY-0 ) Reach R2, facing downstream, Sta 25+00, (MY-0 ) Reach R2, facing downstream, Reach R2, facing downstream, Sta 21+00, April 23, 2018 (MY-00) Reach R2, facing downstream, Sta 25+00, April 23, 2018 (MY-00) Reach R2, facing upstream, Sta 26+00, April 23, 2018 (MY-00)Reach R2, facing upstream, Sta 26+00, (MY-0 ) Reach R3, facing downstream, Sta 32+00, April 19, 2018 (MY-00)Reach R3, facing downstream, Sta 32+00, (MY-0 ) Reach R4, facing upstream, Sta 13+00, June 11, 2018 (MY-00)Reach R4, facing upstream, Sta 13+00, (MY-0 Reach R4, facing downstream, Sta 13+00, June 11, 2018 (MY-00)Reach R4, facing downstream, Sta 13+00, (MY-0 ) Reach R4, facing upstream, Sta 17+00, June 11, 2018 (MY-00) Reach R4, facing upstream, Sta 15+00, June 11, 2018 (MY-00) Reach R4, facing upstream, Sta 17+00, (MY-0 ) Reach R4, facing upstream, Sta 15+00, (MY-0 ) Veg Plot 1 (MY-0 ) Veg Plot 2 (MY-0 ) Veg Plot 1 ay 14, 2018 (MY-00) Veg Plot May 14, 2018 (MY-00) Veg Plot 3 (MY-0 ) Veg Plot 4 (MY-0 ) Veg Plot 3 May 14, 2018 (MY-00) Veg Plot 4 May 14, 2018 (MY-00) *plot origin at corner to the right Edwards-Johnson Mitigation Project Appendix C – Vegetation Plot Data CVS Project Code 3.  Project Name: Edwards Johnson Mitigation ProjectTable 6PnoLS 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 TAcer rubrum Tree 1 1 3 21152217111Alnus serrulata Tag Alder, Smooth AldeShrub Tree333Betula nigra River Birch, Red Birch Tree444111111 666777888Carpinus caroliniana Shrub Tree222Cornus amomum Silky Dogwood Shrub Tree 2 2 2 2 2 2444555888Cornus florida Flowering Dogwood Shrub Tree 22Diospyros virginiana American Persimmon, Tree111Fraxinus pennsylvanica Green Ash, Red Ash Tree111111 222444445444Ilex verticillata Winterberry Shrub Tree111Lindera benzoin Northern Spicebush Shrub Tree111222 111444888111111Liquidambar styraciflua Sweet Gum, Red Gum Tree213174Liriodendron tulipifera Tree 1 1 2 11 7 7 7Platanus occidentalis Sycamore, Plane‐tree Tree444111112222889778101010Quercus michauxii Basket Oak, Swamp ChTree 2 2 2222333444Quercus nigra Water Oak, Paddle OakTree 1 1 1111222666Quercus phellos Willow Oak Tree 3 3 33338810777Rhus copallinum Shrub TreeRhus typhina Staghorn Sumac Shrub1Salix nigra Black Willow Tree 1 1 2 6Sambucus canadensis Common Elderberry Shrub Tree5Ulmus rubra Slippery Elm, Red Elm Tree213 13 21 10 10 12 5 5 12 5 5 6 33 33 51 49 49 97 70 70 7066106684473349913111117121212526.1 526.1 849.8 404.7 404.7 485.6 202.3 202.3 485.6 202.3 202.3 242.8 333.9 333.9 516 495.7 495.7 981.4 708.2 708.2 708.2size (ACRES)Species countStems per ACRE10.02 0.02Annual MeansMY2 (2019) MY1 (2018) MY0 (2018)0.100.0210.0240.1040.10Stem countsize (ares)14Current Plot Data (MY2 2019)Scientific Name Common Name Species Type003‐01‐0001 003‐01‐0002 003‐01‐0003 003‐01‐00041 Edwards-Johnson Mitigation Project Appendix D – Stream Measurement and Geomorphology Data Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR2Cross Section IDX1Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)244.4Low Bank Height Elevation (ft)244.3Bankfull Max Depth (ft)1.2Low Bank Height (ft)1.3Bank Height Ratio 0.9Bankfull X-section Area (ft²)4.9% Change Bank Height Ratio10.0%Looking Downstream** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.Dimension Data Summary: MY2 2019* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.2412422432442452462472480 10203040Elevation (feet)Width (feet)X1 Riffle, STA 18+77 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR2Cross Section IDX2Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)241.0Low Bank Height Elevation (ft)241.0Bankfull Max Depth (ft)1.8Low Bank Height (ft)1.8Bank Height Ratio 1.0Bankfull X-section Area (ft²)6.5% Change Bank Height Ratio0.0%Looking Downstream** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.Dimension Data Summary: MY2 2019* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.2382392402412422432442450 10203040Elevation (feet)Width (feet)X2 Pool, STA 21+14 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR4Cross Section IDX3Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)239.7Low Bank Height Elevation (ft)239.7Bankfull Max Depth (ft)2.3Low Bank Height (ft)2.3Bank Height Ratio 1.0Bankfull X-section Area (ft²)11.0% Change Bank Height Ratio0.0%Looking Downstream** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.Dimension Data Summary: MY2 2019* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.2362372382392402412422430 10203040Elevation (feet)Width (feet)X3 Pool, STA 16+43 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR4Cross Section IDX4Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)238.8Low Bank Height Elevation (ft)238.7Bankfull Max Depth (ft)1.0Low Bank Height (ft)0.9Bank Height Ratio 0.9Bankfull X-section Area (ft²)5.2% Change Bank Height Ratio10.0%Looking Downstream** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.Dimension Data Summary: MY2 2019* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.2362372382392402412422430 10203040Elevation (feet)Width (feet)X4 Riffle, STA 16+97 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR3Cross Section IDX5Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)234.2Low Bank Height Elevation (ft)234.3Bankfull Max Depth (ft)1.4Low Bank Height (ft)1.5Bank Height Ratio 1.1Bankfull X-section Area (ft²)4.7% Change Bank Height Ratio10.0%** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.Dimension Data Summary: MY2 2019Looking Downstream* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.2312322332342352362372380 10203040Elevation (feet)Width (feet)X5 Riffle, STA 28+24 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR3Cross Section IDX6Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)233.5Low Bank Height Elevation (ft)233.4Bankfull Max Depth (ft)1.0Low Bank Height (ft)0.9Bank Height Ratio 0.9Bankfull X-section Area (ft²)5.6% Change Bank Height Ratio10.0%Looking Downstream** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.Dimension Data Summary: MY2 2019* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.2302312322332342352362370 10203040Elevation (feet)Width (feet)X6 Pool, STA 29+56 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR3 (Multi-Thread Channel)Cross Section IDX7Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)230.7Low Bank Height Elevation (ft)230.8Bankfull Max Depth (ft)0.4Low Bank Height (ft)0.5Bank Height Ratio 1.1Bankfull X-section Area (ft²)4.7% Change Bank Height Ratio10.0%Looking Downstream** MY1 used in place of as-built (MY0) due to issues with the as-built survey standards identified during MY1.***X7 right and left pins extended per request after MY1* Bank Height Ratio is calculated based on MY1 cross-sectional area as described in the Standard Measurement of the BHR Monitoring Parameter document produced by the technical industry work group consisting of the NCIRT, NCDMS, and Industry Practitioner sin NC (9/2018). The remainder of the bankfull dimensions are calculated based on the current year's low bank height.Dimension Data Summary: MY2 20192282292302312322332342350 102030405060708090Elevation (feet)Width (feet)X7 Riffle, STA 33+18 Baseline MY0MY1MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Project NameEdwards-Johnson Mitigation ProjectProject ID97080Reach IDR3 (Multi-Thread Channel)Cross Section IDX8Field CrewK. Obermiller, E. DunniganBankfull Elevation (ft)238.1Low Bank Height Elevation (ft)238.1Bankfull Max Depth (ft)0.8Low Bank Height (ft)0.8Bank Height Ratio 1.0Bankfull X-section Area (ft²)4.7% Change Bank Height Ratio0.0%Looking Downstream*X8 added during MY1 post-monitoring site visit Dimension Data Summary: MY2 20192302312322332342352362370 10 20 30 40 50 60 70 80 90 100 110 120 130 140Elevation (feet)Width (feet)X8 Riffle, STA 30+50 MY2Bankfull ElevationFloodprone AreaEdwards‐Johnson Mitigation ProjectDMS Project #97080October 2019Water and Land SolutionsAnnual Monitoring ReportMonitoring Year 2 of 7 Figure 3: Edwards‐Johnson Pebble Count Date Collected 9/21/2018 10/18/2019 MY 1 MY2 MY3 MY4 MY5 MY6 MY7 MATERIAL PARTICLE SIZE (mm)Total #Total # Silt / Clay < .063 75 Very Fine .063 - .125 46 Fine .125 - .25 14 7 Medium .25 - .50 19 8 Coarse .50 - 1.0 19 20 Very Coarse 1.0 - 2.0 19 13 Very Fine 2.0 - 2.8 77 Very Fine 2.8 - 4.0 47 Fine 4.0 - 5.6 27 Fine 5.6 - 8.0 4 Medium 8.0 - 11.0 13 Medium 11.0 - 16.0 16 Coarse 16 - 22.6 14 Coarse 22.6 - 32 23 Very Coarse 32 - 45 Very Coarse 45 - 64 Small 64 - 90 Small 90 - 128 Large 128 - 180 Large 180 - 256 Small 256 - 362 Small 362 - 512 Medium 512 - 1024 Large-Very Large 1024 - 2048 Bedrock > 2048 100 100 Total Cumulative D16 0.16 0.2 D35 0.36 0.66 D50 0.62 1.1 D65 1.1 2.5 D84 2.4 7.8 D95 N/A 19 MY2 Channel materials Channel materials D16 = 0.53 D16 = 0.067 D35 = 0.93 D35 = 0.13 D50 = 1.8 D50 = 0.3 D84 = 12 D84 = 3.2 D95 = 21 D95 = 7.5             Riffle             Pool SILT/CLAY SAN GRAVEL COBBLE BOULDER BEDROCK silt/clay sand gravel cobble boulder 0% 5% 10% 15% 20% 25% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.01 0.1 1 10 100 1000 10000 weighted percent of particles in rangepercent finer thanparticle size (mm) Weighted pebble count by bed features Edwards-Jonhson Mitigation Project MY2 weighted percent Riffle Pool # of particles 70% riffle 30% pool Parameter Reach ID: R1 (Preservation) Dimension (Riffle)Min Max Min Max Min Max Min Max Bankfull Width (ft)5.5 7.2 4.5 8.3 - - - - Floodprone Width (ft)30.0 80.0 10.0 20.0 - - - - Bankfull Mean Depth (ft)0.4 0.8 0.8 1.6 - - - - Bankfull Max Depth (ft)0.5 0.9 0.9 1.3 - - - - Bankfull Cross Sectional Area (ft2)4.1 5.0 3.0 5.0 - - - - Width/Depth Ratio 8.2 15.2 6.2 14.2 - - - - Entrenchment Ratio 4.2 12.0 7.1 8.4 - - - - Bank Height Ratio 1.1 1.1 0.9 1.1 - - - - Profile Riffle Length (ft)7.5 38.2 9.5 22.7 - - - - Riffle Slope (ft/ft)0.011 0.014 0.009 0.015 - - - - Pool Length (ft)4.1 7.9 6.1 8.7 - - - - Pool Max Depth (ft)1.2 1.4 1.8 2.4 - - - - Pool Spacing (ft)22.0 50.0 14.4 22.3 - - - - Pattern Channel Beltwidth (ft)22.0 28.0 23.4 29.0 - - - - Radius of Curvature (ft)11.3 19.1 11.2 17.5 - - - - Rc:Bankfull Width (ft/ft)1.6 2.9 1.6 2.5 - - - - Meander Wavelength (ft)27.0 60.0 43.4 65.1 - - - - Meander Width Ratio 2.2 6.4 3.9 4.5 - - - - Transport Parameters Boundary Shear Stress (lb/ft2) Max part size (mm) mobilized at bankfull Stream Power (W/m2) Additional Reach Parameters Rosgen Classification Bankfull Velocity (fps) Bankfull Discharge (cfs) Sinuosity Water Surface Slope (Channel) (ft/ft) Bankfull Slope (ft/ft)0.012 0.015 - Table 7a. Baseline Stream Data Summary Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) - - 0.010 0.015 - - 1.21 1.1 - 1.3 - - 4.1 4.5 -- 20.0 ---- E5/C5C5E5/C5 E5/C5 - --- - --- ---- As-Built/ Baseline Pre- Restoration Condition Reference Reach Data Design Parameter Reach ID: R2 Dimension (Riffle)Min Max Min Max Min Max Min Max Bankfull Width (ft)4.4 7.2 4.5 8.3 7.7 8.9 Floodprone Width (ft)30.0 70.0 10.0 20.0 20.0 50.0 32.0 Bankfull Mean Depth (ft)0.4 0.8 0.8 1.6 0.6 0.6 Bankfull Max Depth (ft)1.3 1.5 0.9 1.3 0.9 1.2 Bankfull Cross Sectional Area (ft2)3.3 5.1 3.0 5.0 5.0 5.0 Width/Depth Ratio 8.2 15.2 6.2 14.2 12.0 16.0 Entrenchment Ratio 4.3 10.0 7.1 8.4 2.2 3.6 Bank Height Ratio 1.1 1.6 0.9 1.1 1.0 1.0 Profile Riffle Length (ft)17.0 44.0 9.5 22.7 10.0 30.0 12.0 34.0 Riffle Slope (ft/ft)0.011 0.013 0.009 0.015 0.010 0.022 0.017 0.029 Pool Length (ft)3.9 6.0 6.1 8.7 6.0 9.0 6.2 9.9 Pool Max Depth (ft)1.2 1.3 1.8 2.4 1.1 1.5 1.1 1.6 Pool Spacing (ft)22.0 39.0 14.4 22.3 30.0 55.0 11.8 36.1 Pattern Channel Beltwidth (ft)28.0 23.4 29.0 28.0 51.0 27.0 46.0 Radius of Curvature (ft)11.3 19.1 11.2 17.5 15.0 25.0 13.0 29.0 Rc:Bankfull Width (ft/ft)1.6 2.9 1.6 2.5 2.0 3.0 2.1 3.5 Meander Wavelength (ft)31.0 45.0 43.4 65.1 55.0 100.0 35.0 88.0 Meander Width Ratio 2.3 6.4 3.9 4.5 3.0 8.0 4.4 7.6 Transport Parameters Boundary Shear Stress (lb/ft2) Max part size (mm) mobilized at bankfull Stream Power (W/m2) Additional Reach Parameters Rosgen Classification Bankfull Velocity (fps) Bankfull Discharge (cfs) Sinuosity Water Surface Slope (Channel) (ft/ft) Bankfull Slope (ft/ft) 0.011 0.015 0.011 0.012 G5 E5/C5 C5 C5 4.1 4.5 4.7 4.7 --31.00 - 0.012 0.015 0.012 0.013 26.0 -26.0 26.0 1.16 1.1 - 1.3 1.17 1.17 --0.49 - --2.00 - Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline Parameter Reach ID: R3 (lower) Preservation Dimension (Riffle)Min Max Min Max Min Max Min Max Bankfull Width (ft)4.47.24.58.3---- Floodprone Width (ft)30.0 70.0 10.0 35.0 ---- Bankfull Mean Depth (ft)0.40.80.81.6---- Bankfull Max Depth (ft)0.50.90.91.3---- Bankfull Cross Sectional Area (ft2)3.35.33.05.0---- Width/Depth Ratio 8.0 20.0 6.2 14.2 ---- Entrenchment Ratio 3.08.07.18.4---- Bank Height Ratio 1.0-0.91.1---- Profile Riffle Length (ft)11.0 22.0 9.5 22.7 ---- Riffle Slope (ft/ft)0.008 0.009 0.009 0.015 ---- Pool Length (ft)5.08.06.18.7---- Pool Max Depth (ft)1.31.71.82.4---- Pool Spacing (ft)22.0 39.0 14.4 22.3 ---- Pattern Channel Beltwidth (ft)28.0 40.0 23.4 29.0 ---- Radius of Curvature (ft)11.0 19.0 11.2 17.5 ---- Rc:Bankfull Width (ft/ft)1.62.91.62.5---- Meander Wavelength (ft)27.0 50.0 43.4 65.1 ---- Meander Width Ratio 6.48.53.94.5---- Transport Parameters Boundary Shear Stress (lb/ft2) Max part size (mm) mobilized at bankfull Stream Power (W/m2) Additional Reach Parameters Rosgen Classification Bankfull Velocity (fps) Bankfull Discharge (cfs) Sinuosity Water Surface Slope (Channel) (ft/ft) Bankfull Slope (ft/ft) 0.008 0.015 - - E5 E5/C5 - - 4.1 4.0 - - - - 29.00 - 0.009 0.015 - - 37.0 - - - 1.21 1.1 - 1.3 - - - - 0.49 - - - 2.00 - Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline Parameter Reach ID: R3 (upper) Dimension (Riffle)Min Max Min Max Min Max Min Max Bankfull Width (ft)4.4 7.2 4.5 8.3 8.2 8.8 18.4 Floodprone Width (ft)30.0 70.0 10.0 35.0 30.0 80.0 38.0 27.0 Bankfull Mean Depth (ft)1.0 1.8 0.8 1.6 0.7 0.6 0.3 Bankfull Max Depth (ft)1.5 2.3 0.9 1.3 1.0 1.0 0.4 Bankfull Cross Sectional Area (ft2)3.3 3.0 5.0 5.6 5.5 4.7 Width/Depth Ratio 8.2 15.2 6.2 14.2 12.0 14.3 71.8 Entrenchment Ratio 4.3 10.0 7.1 8.4 3.7 8.0 4.3 1.5 Bank Height Ratio 1.1 1.7 0.9 1.1 1.0 1.0 1.0 Profile Riffle Length (ft)33.0 55.0 9.5 22.7 12.0 33.0 10.0 30.0 Riffle Slope (ft/ft)0.007 0.009 0.009 0.015 0.011 0.014 0.020 0.035 Pool Length (ft)8.0 13.0 6.1 8.7 8.0 11.0 7.0 10.0 Pool Max Depth (ft)1.4 2.0 1.8 2.4 1.4 2.0 1.1 1.6 Pool Spacing (ft)22.0 39.0 14.4 22.3 25.0 51.0 11.8 35.5 Pattern Channel Beltwidth (ft)28.0 23.4 29.0 25.0 45.0 30.0 45.0 Radius of Curvature (ft)10.0 11.2 17.5 12.0 22.0 15.0 25.0 Rc:Bankfull Width (ft/ft)1.6 1.6 2.5 2.0 3.0 2.5 4.2 Meander Wavelength (ft)27.0 43.4 65.1 30.0 42.0 30.0 44.8 Meander Width Ratio 6.4 3.9 4.5 3.3 5.1 5.1 7.6 Transport Parameters Boundary Shear Stress (lb/ft2) Max part size (mm) mobilized at bankfull Stream Power (W/m2) Additional Reach Parameters Rosgen Classification Bankfull Velocity (fps) Bankfull Discharge (cfs) Sinuosity Water Surface Slope (Channel) (ft/ft) Bankfull Slope (ft/ft) 0.007 0.015 0.009 0.009 0.009 0.015 0.011 0.011 34.0 -34.0 34.0 1.20 1.1 - 1.3 1.20 1.16 E5 incised E5/C5 C5 C5 4.1 4.5 5.7 4.5 --28.90 - --0.51 - --2.00 - Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline Parameter Reach ID: R4 Dimension (Riffle)Min Max Min Max Min Max Min Max Bankfull Width (ft)6.9 - 4.5 8.3 6.6 8.8 Floodprone Width (ft)6.1 - 10.0 35.0 25.0 70.0 38.0 Bankfull Mean Depth (ft)2.4 - 0.8 1.6 0.5 0.6 Bankfull Max Depth (ft)3.1 - 0.9 1.3 0.7 1.0 Bankfull Cross Sectional Area (ft2)15.8 - 3.0 5.0 3.6 5.5 Width/Depth Ratio 5.6 - 10.3 14.2 12.0 14.3 Entrenchment Ratio 1.0 - 2.0 5.0 3.8 10.0 4.3 Bank Height Ratio 1.7 - 0.9 1.1 1.0 1.0 Profile Riffle Length (ft)17.0 44.0 5.1 13.9 13.0 31.0 12.0 27.0 Riffle Slope (ft/ft)0.019 0.027 0.017 0.026 0.016 0.027 0.015 0.027 Pool Length (ft)4.0 6.6 4.5 7.0 6.8 9.4 6.0 8.7 Pool Max Depth (ft)1.9 2.2 1.1 1.7 1.1 1.6 1.1 1.6 Pool Spacing (ft)38.0 87.0 10.0 30.0 22.0 50.0 19.0 41.0 Pattern Channel Beltwidth (ft)- - 23.4 29.0 22.0 35.0 19.0 31.0 Radius of Curvature (ft)- - 11.2 17.5 12.0 20.0 10.0 19.0 Rc:Bankfull Width (ft/ft)- - 1.6 2.5 1.8 3.0 2.1 3.4 Meander Wavelength (ft)- - 43.4 65.1 40.0 60.0 34.0 77.0 Meander Width Ratio - - 3.9 4.5 3.3 5.3 3.0 6.0 Transport Parameters Boundary Shear Stress (lb/ft2) Max part size (mm) mobilized at bankfull Stream Power (W/m 2) Additional Reach Parameters Rosgen Classification Bankfull Velocity (fps) Bankfull Discharge (cfs) Sinuosity Water Surface Slope (Channel) (ft/ft) Bankfull Slope (ft/ft) 0.019 0.015 0.017 0.017 0.018 0.015 0.017 0.017 16.0 -16.0 16.0 1.06 1.1 - 1.2 1.15 1.14 G5c C5 C5 C5 7.0 4.0 4.5 4.5 --24.50 - --0.48 - --2.00 - Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline ParametersBase MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+Bankfull Width (ft) 8.9 7.7 8.6 8.4 13.3 5.8 9.2 9.3 8.7Floodprone Width (ft) 32.0 32.0 34.0 31.0 30.7 31.0 40.0 40.4 40.0Bankfull Mean Depth (ft) 0.6 0.7 0.6 0.8 0.5 1.1 1.1 1.2 1.3Bankfull Max Depth (ft) 1.2 1.3 1.2 1.7 1.6 1.8 2.0 2.1 2.3Bankfull Cross Sectional Area (ft2)5.2 4.9 4.9 6.7 6.5 6.5 10.4 11.0 11.0Bankfull Width/Depth Ratio 15.9 11.4 15.0 10.6 27.8 5.1 8.2 7.9 6.8Bankfull Entrenchment Ratio 3.6 4.2 4.0 3.7 2.3 5.4 4.3 4.3 4.6Bankfull Bank Height Ratio 1.0 <1.0 0.9 <1.0 <1.0 1.0 1.0 1.1 1.0d50 (mm) N/a 0.8 1.8 N/a 0.4 0.3 N/a 0.4 0.3ParametersBase MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+Bankfull Width (ft) 8.8 8.2 8.2 8.8 8.0 6.8 10.4 14.3 25.7Floodprone Width (ft) 38.0 38.2 38.0 38.0 44.8 44.0 44.0 44.5 44.0Bankfull Mean Depth (ft) 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.4 0.2Bankfull Max Depth (ft) 1.0 1.0 1.0 1.0 1.3 1.4 1.4 1.1 1.0Bankfull Cross Sectional Area (ft2)5.4 5.2 5.2 5.5 4.7 4.7 7.7 5.6 5.6Bankfull Width/Depth Ratio 14.3 13.0 13.0 14.3 12.1 9.9 14.1 37.1 117.0Bankfull Entrenchment Ratio 4.3 4.7 4.6 4.3 5.6 6.4 4.2 3.1 1.7Bankfull Bank Height Ratio 1.0 1.0 0.9 1.0 1.0 1.1 1.0 <1.0 0.9d50 (mm) N/a 0.8 1.8 N/a 0.8 1.8 N/a 0.4 0.3ParametersBase MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+Bankfull Width (ft) 18.4 18.1 27.2 N/A N/A 24.8Floodprone Width (ft) 27.0 31.7 64.0 N/A N/A 135.8Bankfull Mean Depth (ft) 0.3 0.3 0.4 N/A N/A 0.2Bankfull Max Depth (ft) 0.4 0.3 0.2 N/A N/A 0.8Bankfull Cross Sectional Area (ft2)4.7 4.7 4.7 N/A N/A 4.7Bankfull Width/Depth Ratio 71.8 69.7 158.9 N/A N/A 130.6Bankfull Entrenchment Ratio 1.5 1.7 2.4 N/A N/A 5.5Bankfull Bank Height Ratio 1.0 1.0 1.1 N/A N/A 1.0d50 (mm) N/a 0.8 1.8 N/A 0.8 1.8Table 7b. Monitoring Data - Dimensional Morphology Summary (Dimensional Parameters – Cross Sections)Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080)Cross Section 6 (Pool)Cross Section 7 (Riffle) Cross Section 8 (Riffle)Cross Section 1 (Riffle) Cross Section 2 (Pool) Cross Section 3 (Pool)Cross Section 4 (Riffle) Cross Section 5 (Riffle) Parameter Reach ID: R1 (Preservation) Min Max Min Max Min Max Min Max Min Max Min Max Profile Riffle Length (ft)-- Riffle Slope (ft/ft)-- Pool Length (ft)-- Pool Max depth (ft)-- Pool Spacing (ft)-- Pattern Channel Beltwidth (ft)-- Radius of Curvature (ft)-- Rc:Bankfull width (ft/ft)-- Meander Wavelength (ft)-- Meander Width Ratio -- Additional Reach Parameters Rosgen Classification Sinuosity (ft) Water Surface Slope (Channel) (ft/ft) BF slope (ft/ft) 3Ri% / Ru% / P% / G% / S% 3SC% / Sa% / G% / C% / B% / Be% 3d16 / d35 / d50 / d84 / d95 / 2% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other 0.01 Baseline MY1 C5 1.21 Table 7c. Monitoring Data - Stream Reach Summary Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) MY2 MY3 MY4 MY5 0.012 Pattern and Profile data will not typically be collected unless visual data, dimensional data or profile data indicate significant deviations from baseline conditions Parameter Reach ID: R2 Min Max Min Max Min Max Min Max Min Max Min Max Profile Riffle Length (ft)12 34 Riffle Slope (ft/ft)0.017 0.029 Pool Length (ft)6.2 9.9 Pool Max depth (ft)1.1 1.6 Pool Spacing (ft)11.8 36.1 Pattern Channel Beltwidth (ft)27 46 Radius of Curvature (ft)13 29 Rc:Bankfull width (ft/ft)2.1 3.5 Meander Wavelength (ft)35 88 Meander Width Ratio 4.4 7.6 Additional Reach Parameters Rosgen Classification Sinuosity (ft) Water Surface Slope (Channel) (ft/ft) BF slope (ft/ft) 3Ri% / Ru% / P% / G% / S% 3SC% / Sa% / G% / C% / B% / Be% 3d16 / d35 / d50 / d84 / d95 / 2% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other 0.013 0.012 MY5Baseline MY1 MY2 MY3 MY4 C5 1.17 Parameter Reach ID: R3 (upper) Min Max Min Max Min Max Min Max Min Max Min Max Profile Riffle Length (ft) 10 30 Riffle Slope (ft/ft) 0.02 0.035 Pool Length (ft) 7 10 Pool Max depth (ft) 1.1 1.6 Pool Spacing (ft) 11.8 35.5 Pattern Channel Beltwidth (ft) 30 45 Radius of Curvature (ft)15 25 Rc:Bankfull width (ft/ft) 2.5 4.2 Meander Wavelength (ft) 30 44.8 Meander Width Ratio 5.1 7.6 Additional Reach Parameters Rosgen Classification Sinuosity (ft) Water Surface Slope (Channel) (ft/ft) BF slope (ft/ft) 3Ri% / Ru% / P% / G% / S% 3SC% / Sa% / G% / C% / B% / Be% 3d16 / d35 / d50 / d84 / d95 / 2% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other 0.011 1.16 0.009 MY1 MY2 MY3 MY4 MY5 C5 Baseline Parameter Reach ID: R4 Min Max Min Max Min Max Min Max Min Max Min Max Profile Riffle Length (ft) 12 27 Riffle Slope (ft/ft) 0.015 0.027 Pool Length (ft) 6 8.7 Pool Max depth (ft) 1.1 1.6 Pool Spacing (ft) 19 41 Pattern Channel Beltwidth (ft) 19 31 Radius of Curvature (ft)10 19 Rc:Bankfull width (ft/ft) 2.1 3.4 Meander Wavelength (ft) 34 77 Meander Width Ratio 3 6 Additional Reach Parameters Rosgen Classification Sinuosity (ft) Water Surface Slope (Channel) (ft/ft) BF slope (ft/ft) 3Ri% / Ru% / P% / G% / S% 3SC% / Sa% / G% / C% / B% / Be% 3d16 / d35 / d50 / d84 / d95 / 2% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other 0.017 1.14 0.017 MY4 MY5 C5 Baseline MY1 MY2 MY3 Edwards-Johnson Mitigation Project Appendix E – Hydrologic Data Date of Data Collection Date of Occurrence Method Greater than Bankfull (Bkf) or Qgs (Q2*0.66) Stage? Photo/ Notes Measurement 9/17/2018 9/16-9/17/2018 Observed indicators of bankfull stage (wrack lines) after storm event Bkf Photo 7/26/2019 7/24/2019 Crest Gage Bkf Photo 2.5 inches 8/20/2019 unknown Crest Gage Bkf Photo 2.8 inches 9/6/2019 9/5/2019 Crest GageBkfPhoto 2.5 inches 9/6/2019 9/5/2019 Observed indicators of bankfull stage (wrack lines) after storm event Bkf Photo NA 7/26/2019 8/20/2019 9/17/2018 9/17/2018 7/26/2019 8/20/2019 9/6/2019 9/6/2019 Table 8. Verification of Flow Events Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Figure 4 - Groundwater Gauge Data Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) MY2 2019 2018 2019 2020 2021 2022 2023 2024 Mean Edwards-Johnson Wetland Gage 1 M 6.17% Edwards-Johnson Reference Wetland Gage 2 M 39.21% Annual Precip Total NA WETS 30th Percentile 42.7 WETS 70th Percentile 51.8 Normal Y Impoundment X% above or below success criteria N/A Not available - Gage pulled or yet to be installed by this phase M Malfunction, Data Overwritten or Unretrievable Monitoring Gauge Name Max Consecutive Hydroperiod: Saturation within 12 Inches of Soil Surface (Percent of Growing Season) WETS Station: 317994 - Smithfield Growing Season: 4/6-11/4 (227 days) Figure 4: IA 1-2 7n 01 I} Edwards -Johnson Flow Gage - Rd Consecutive flow - 73 days: 413J2019.6J24/2019 -0 '1 L� -{ i _� Y _ ■ J ■ ■ _ ■ L L� ■ OY Y .i DD Oi �Daik� Rainfall —Stream Depth —bottom of Pool 3 2.5 'w ap 3 � c 0.5 0 Figure 5: Monthly Rainfall Data Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) MY2 2019 *30th and 70th percentile rainfall data collected from weather station (COOP 317994) in Smithfield, NC. **Incomplete Month Month 30%70%Observed Jan-19 3.63 6.07 4.26 Feb-19 2.60 4.79 4.8 Mar-19 3.35 5.74 3.57 Apr-19 1.81 3.84 5.15 May-19 2.74 4.68 1.69 Jun-19 3.05 5.50 4.5 Jul-19 4.14 7.08 5.63 Aug-19 3.36 6.21 2.11 Sep-19 2.97 5.15 2.91 Oct-19 1.63 3.81 4.58 Nov-19 1.54 3.58 ** Dec-19 ****** 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-19Precipitation (in)Date 30-70 Percentile Rainfall Graph Clayton, NC (CLAY - Central Crops Research Station) Observed Rainfall 30th Percentile 70th Percentile