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HomeMy WebLinkAbout20160404 Ver 2_Year 1 Monitoring Report_2018_20190301Monitoring Report FINAL VERSION Edwards -Johnson Mitigation Project Monitoring Year 1 Calendar Year of Data Collection: 2018 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: April -June 2018, Submission Date: March 2019 Prepared for: I C'.1 - Environmental Quality North Carolina Department of Environmental Quality Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 Prepared by: WATER & LAND SOLUTIONS 7721 SIX FORKS ROAD, SUITE 130, RALEIGH, NC 27615 (919)614-5111 1 waterlandsolations.com 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....................................................................................3 3 Project Mitigation Components............................................................................................................3 3.1 Stream Mitigation Types and Approaches....................................................................................3 3.1.1 R1 Preservation.....................................................................................................................3 3.1.2 R2 Restoration.......................................................................................................................3 3.1.3 R3 (Upper Reach) Restoration..............................................................................................4 3.1.4 R3 (Lower Reach) Preservation.............................................................................................4 3.1.5 R4 Restoration.......................................................................................................................4 3.2 Wetlands Mitigation Types and Approaches................................................................................4 4 Performance Standards........................................................................................................................4 4.1 Streams......................................................................................................................................... 6 4.1.1 Stream Hydrology.................................................................................................................6 4.1.2 Stream Profiles, Vertical Stability, and Floodplain Access ....................................................6 4.1.3 Stream Horizontal Stability...................................................................................................6 4.1.4 Streambed Material Condition and Stability........................................................................6 4.1.5 Jurisdictional Stream Flow....................................................................................................6 4.2 Vegetation.....................................................................................................................................6 4.3 Wetlands.......................................................................................................................................7 5 Monitoring Year 1 Assessment and Results..........................................................................................7 5.1 Stream Hydrology.........................................................................................................................7 5.2 Stream Horizontal & Vertical Stability..........................................................................................7 5.3 Streambed Material Condition and Stability................................................................................7 5.4 Jurisdictional Stream Flow Documentation..................................................................................8 5.5 Vegetation.....................................................................................................................................8 5.6 Wetlands.......................................................................................................................................8 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 Baseline Cross -Sections Figure 3 Baseline Longitudinal Profiles Table 7a Baseline Stream Data Summary Table 7b Cross-section Morphology Data Table 7c Stream Reach Morphology Data Table 8 Verification of Flow Events Figure 4 Surface Flow Data Water & Land Solutions 1 Project Summary pl� 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' 43' 30.36" North and 78° 21' 22.90" West. The Project site is located in the NCDEQ Sub -basin 03-04-06, in the Lower Buffalo Creek Priority Sub -watershed 030202011504 study area for the Neuse 01 Regional Watershed Plan (RWP), and in the Targeted Local Watershed 03020201180050, all of the Neuse River Basin. The Project involved the restoration, preservation and permanent protection of four stream reaches (111, R2, R3, and R4) and their riparian buffers, totaling approximately 3,729 linear feet of existing streams. The Project construction and planting were completed in May 2018 and MY1 monitoring activities occurred between May and November 2018 (Table 2). This report documents the completion of and presents the data for the first year of monitoring (MY1). The Project meets the MY1 success criteria for stream hydrology, stream horizontal and vertical stability, streambed material condition and stability, and vegetation. Based on these results, the Project is expected to meet the Year 2 Monitoring success criteria in 2019. 2 Project Background 2.1 Project Location, Setting, and Existing Conditions The Edwards -Johnson Mitigation Project (Project) site is located in the Lower Buffalo Creek Priority Sub - watershed 030202011504 study area for the Neuse 01 Regional Watershed Plan (RWP), in the Wake - Johnston Collaborative Local Watershed Plan, and in the Targeted Local Watershed 03020201180050, all of the Neuse River Basin. The Project site is situated in the lower piedmont where potential for future development associated with the 1-540 corridor and rapidly growing Johnston County area is imminent, as described in the Regional Watershed Plan (RWP) for the Upper Neuse River Basin within Hydrologic Unit (HU) 03020201. The RWP identified and prioritized potential mitigation strategies to offset aquatic resource impacts from development and provided mitigation project implementation recommendations to improve ecological uplift within the Neuse 01 Sub -basin, which included traditional stream and wetland mitigation, buffer restoration, nutrient offsets, non-traditional mitigation projects such as stormwater and agricultural BMPs, and rare, threatened, or endangered (RTE) species habitat preservation or enhancement. The project included four stream reaches (R1, R2, R3, and R4) which involved the restoration, preservation and permanent protection of approximately3,729 linear feet of streams permanently protected by a conservation easement. The catchment area is 223 acres and has an impervious cover less than one percent. The dominant land uses are agriculture and mixed forest. Prior to Project 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 Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page 1 Water & Land Solutions pl� 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 (LWP) and 2015 Neuse 01 Regional Watershed Plan (RWP) 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, • 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: Improve Base Flow Reconnect Floodplain / Increase Floodprone Area Widths Improve Bedform Diversity Increase Lateral Stability Enhance Riparian Buffer Vegetation Improve Water Quality Improve Macroinvertebrate Community and Aquatic Species Health Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Remove man-made pond dam and restore a more natural flow regime and aquatic passage. Lower BHRs from >2.0 to 1.0-1.2 and maintain ERs at 2.2 or greater. Increase riffle/pool percentage to 70/30 and pool -to -pool spacing ratio 4-7X bankfull width. Reduce BEHI/NBS streambank erosion rates comparable to downstream reference condition and stable cross-section values. Plant or protect native species vegetation a minimum 50' wide from the top of the streambanks with a composition/density comparable to reference condition. Install water quality treatment basins along the riparian corridor and reduce sediment and nutrient levels. Incorporate native woody debris and bedform diversity into channel and change DWR bioclassification rating from 'Poor' to a minimum 'Fair' by Monitoring Year 7. Page 2 Water & Land Solutions 4 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. The final mitigation plan and PCN were submitted to DMS September 29, 2017 for submission to the NCIRT. The Section 404 General (Regional and Nationwide) Permit Verification was issued January 12, 2018. Project construction started on March 23, 2018 and mitigation site earthwork and mitigation site planting were completed on May 5, 2018, both by RiverWorks Construction. Trueline Surveying, PC completed the as -built survey in June 2018. WLS completed the installation of baseline monitoring devices on May 14, 2018 and the installation of survey monumentation and conservation easement boundary marking on August 13, 2018. 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 Project Mitigation Components 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 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 Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page 3 Water & Land Solutions 4 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 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. 3.2 Wetlands Mitigation Types and Approaches Wetland mitigation credits are not contracted or proposed for this project. 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 Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page 4 Water & Land Solutions 4 be conducted to assess the condition of the project throughout the monitoring period. Monitoring activities will be conducted for a period of seven (7) 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. Improve Base Flow Duration and Overbank Flows (i.e channel forming discharge) Reconnect Floodplain / Increase Floodprone Area Widths Improve Bedform Diversity Increase Vertical and Lateral Stability Establish Riparian Buffer Vegetation Remove man-made pond, well device (pressure transducer), regional curve, regression equations, catchment assessment Bank Height Ratio, Entrenchment Ratio, crest gauge Pool to Pool spacing, riffle -pool sequence, pool max depth ratio, Longitudinal Profile BEHI / NBS, Cross- sections and Longitudinal Profile Surveys, visual assessment CVS Level I & II Protocol Tree Veg Plots (Strata Composition and Density), visual assessment Maintain seasonal flow for a minimum of 30 consecutive days during normal annual rainfall. Maintain average BHRs at 1.2 and increase ERs at 2.2 or greater and document bankful I/geomorphical ly significant flow events. Increase riffle/pool percentage and pool -to -pool spacing ratios compared to reference reach conditions. Decrease streambank erosion rates comparable to reference condition cross- section, pattern and vertical profile values. 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. Create a more natural and higher functioning headwater flow regime and provide aquatic passage. Provide temporary water storage and reduce erosive forces (shear stress) in channel during larger flow events. Provide a more natural stream morphology, energy dissipation and aquatic habitat/refugia. Reduce sedimentation, excessive aggradation, and embeddedness to allow for interstitial flow habitat. Increase woody and herbaceous vegetation will provide channel stability and reduce streambank erosion, runoff rates and exotic species vegetation. Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page S Reduction of excess nutrients and organic Improve Water N/A N/A pollutants will increase Quality the hyporheic exchange and dissolved oxygen (DO) levels. Increase leaf litter and Improve Benthic organic matter critical Biology Macroinvertebrate DWR Small Stream/ N/A to provide in -stream (Level 5) Communities and Qual v4 sampling, IBI cover/shade, wood Aquatic Health 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. Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page S Water & Land Solutions 4 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 ((Dg,=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). Vertical stability and floodplain access will both be evaluated by looking at Entrenchment Ratios (ER). The ER shall be no less than 2.2 (>1.5 for "B" stream types) along the restored project stream reaches. This standard only applies to restored reaches of the channel where ERs were corrected through design and construction. 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, overtime, given the current watershed conditions and future sediment supply regime. Since the 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. 4.1.5 Jurisdictional Stream Flow The restored stream systems must be classified as at least intermittent, and therefore must exhibit base flow for some portion of the year 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 planted trees per acre at the end of Year 3 of the monitoring period and at least 260, five-year-old, planted 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 planted stems per acre in Year 7 of monitoring. Planted vegetation (for projects in coastal plain and piedmont counties) must average seven (7) feet in height at Year 5 of monitoring and ten (10) feet in Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page 6 Water & Land Solutions 4 height at Year 7 of monitoring. For all of the monitoring years (Year 1 through Year 7), the number of Red maple (Acer rubrum) stems cannot exceed 20% of the total stems in any of the vegetation monitoring plots. 4.3 Wetlands Wetland mitigation credits are not contracted or proposed for this project. Wetland mitigation performance standards are therefore not included in this section. 5 Monitoring Year 1 Assessment and Results Annual monitoring was conducted during MY1 in accordance with the monitoring plan as described in the approved mitigation plan and was intended to document the site improvements based on restoration potential, catchment health, ecological stressors and overall constraints. All of the monitoring device locations are depicted on the CCPV (Figure 1). MY1 monitoring results are provided in the appendices. The Project meets the MY1 success criteria for stream hydrology, stream horizontal and vertical stability, and streambed material. All vegetation plots meet interim success criteria except veg plot 3 which appears to be experiencing prolonged wet conditions 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. Because the crest gage was installed after the submission of the Draft As -built Baseline Monitoring Reports and Draft Monitoring Reports Year 1, only the described photographic measures will be used for Year 1 stream hydrologic monitoring. At least one bankfull events occurred during MY1. This event was documented using the described photography (Table 8). The documented occurrence of this flow event satisfies the requirement of the occurrence of one of the two bankfull events (overbank flows) and the one of the two "geomorphically significant" flow events (Qgs=0.66Q2) within the monitoring period, along with floodplain access by flood flows. 5.2 Stream Horizontal & Vertical Stability Visual assessment was utilized for assessment of MY1 horizontal and vertical stream stability. The visual assessments for each stream reach concluded that the MY1 stream channel pattern and longitudinal profiles, instream structure locations, still closely match the profile design parameters and MYO/baseline conditions. The MY1 plan form geometry or pattern still appears to fall within acceptable ranges of the design parameters for all restored reaches. 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 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 Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page 7 Water & Land Solutions 4 sampling indicated no significant change (e.g., aggradation, degradation, embeddedness) in streambed material condition or stability were observed during MY1. 5.4 Jurisdictional Stream Flow Documentation Jurisdictional stream flow documentation and monitoring of restored intermittent reaches includes a combination of photographic documentation and the installation of a monitoring gage (flow gage) (continuous -read pressure transducers) within the thalweg (bottom) 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 the Johnston County weather station (COOP 317994), approximately twenty miles south of the site. The monitoring gage data for MY1 is incomplete and will be reconciled for MY2. The monitoring gage intended to document 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. WLS did observe stream flow along Reach R4, as well as along all of other project reaches, during each pre- and post -construction site visit in 2018, with WLS staff visiting the site on a monthly basis. These observations correspond do the monitoring flow gage documentation results at the nearby Lake Wendell and Pen Dell Mitigation Project Sites. 5.5 Vegetation Vegetation monitoring for MY1 was conducted utilizing the four (4) 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. The MY1 average surviving planted stem density is 496 stems per acre, which exceeds the interim measure of vegetative success of at least 320 planted stems per acre at the end of the third monitoring year. Summary data and photographs of each plot can be found in Appendix 3. The MY1 vegetation monitoring was also conducted utilizing visual assessment along all of the Project stream reaches. The results of the visual assessment did not indicate any significant negative changes to the existing vegetation community. An area of concern was observed along R3 buffer near veg plot 3 as shown on the CCPV. This area was utilized as a partial haul road during construction and experienced prolonged wetness during planting activities. Veg plot 3 stem density was approximately 283 stems per acre which is below the interim success criteria. In addition, low stem density was observed along R4 near veg plot 4. These areas will be watched closely during MY2 monitoring and any remedial actions, if necessary, will be documented in the subsequent MY2 report. In addition, a slight buffer encroachment was observed along the R2 as shown on the CCPV. The conservation easement is marked in this area and the landowner has been notified. This area will be replanted in Winter 2019 and documented in the MY2 report. 5.6 Wetlands Wetland mitigation credits are not contracted or proposed for this project. One groundwater monitoring well was installed during the baseline monitoring within an existing wetland area along Reach R3. The well data was unrecoverable and therefore an additional groundwater monitoring well was installed along Reach R3 (preservation) after the first year of monitoring, in early January 2019. The wells were installed to document groundwater levels within the stream and wetland restoration 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. Edwards -Johnson Mitigation Project FINAL Monitoring Report Year 1 Page 8 Water & Land Solutions 4 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 FINAL Monitoring Report Year 1 Page 9 Appendices 9 Edwards -Johnson Mitigation Project Appendix A — Background Tables and Figures 9 Edwards -Johnson Mitigation Project Length and Area Summations by Mitigation Category Restoration Level Stream (linear feet) Riparian Wetland (acres) Table 1. Mitigation Assets and Components Stream 3,023 Riverine Non-Riverine Edwards -Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) 2949 Existing Enhancement Mitigation As -Built Project Wetland Footage Plan Footage or Approach Component Position and or Footage or Acreage Restoration Priority Mitigation Mitigation 741 (reach ID, etc.)' HydroType2 Acreage Stationing Acreage Level Level Ratio (X:1) Credits' Notes/Comments R1 611 10+00-16+11 611 611 P 10 61 Invasive Control, Permanent Conservation Easement. R2 1007 16+11 - 27+94 1183 1180 R PI 1 1183 Full Channel Restoration, Invasive Control, Permanent Conservation Easement. R3 (upper 629 27+94 - 36+09 815 853 R PI 1 815 Full Channel Restoration, Invasive Control, Permanent Conservation Easement. R3 (lower) 240 36+09 - 37+39 130 149 P 10 13 Invasive Control, Permanent Conservation Easement. Full Channel Restoration, Pond Removal, Invasive Control, Permanent R4 815 10+00 - 19+36 1 951 936 R PI/PII 1 951 Conservation Easement. Length and Area Summations by Mitigation Category Restoration Level Stream (linear feet) Riparian Wetland (acres) Non -riparian Wetland (acres) Stream 3,023 Riverine Non-Riverine Restoration 2949 Enhancement Enhancement I Enhancement II Creation Preservation 741 High Quality Pres Overall Assets Summary * Mitigation Credits are from the final approved mitigation plan, as verified by the as -built survey. Overall Asset Category Credits* Stream 3,023 RP Wetland NR Wetland * Mitigation Credits are from the final approved mitigation plan, as verified by the as -built survey. Table 2. Project Activity and Reporting History Edwards -Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Elapsed Time Since grading complete: 0 yrs 7 months Elapsed Time Since planting complete: 0 yrs 7 months Number of reporting Years : 0 Activity or Deliverable Data Collection Complete Completion or Delivery Project Contract Execution N/A 3/18/2016 Final Mitigation Plan Submittal 9/29/2017 Section 404 General (Regional and Nationwide) Permit Verfication 1/12/2018 Begin Construction 3/23/2018 Mitigation Site Earthwork Completed 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 Year 3 Monitoring Report Submittal Year 4 Monitoring Report Submittal Year 5 Monitoring Report Submittal Year 6 Monitoring Report Submittal Year 7 Monitoring Report Submittal 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 3. Project Contacts Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Mitigation Provider Water & Land Solutions, LLC 11030 Raven Ridge Road, Suite 200, Raleiqh, NC 27614 Primary Pro'ect POC William Scott Hunt III PE Phone: 919-270-4646 Construction Contractor RiverWorks Construction 114 W. Main Street, Suite 106, Clayton, NC 27520 Primary Pro'ect POC Bill Wri ht Phone: 919-590-5193 Survey Contractor (Existing WithersRavenel Condition Survevs) 115 MacKenan Drive, Cary, NC 27511 Primary Pro'ect POC Marshall Wight, PLS Phone: 919-469-3340 Survey Contractor (Conservation True Line Surveying, PC Easement, Construction and As- Builts Survevs) 205 West Main Street, Clayton, NC 27520 Primary Prosect POC Curk T. Lane PLS 919-359-0427 Planting Contractor RiverWorks Construction 114 W. Main Street, Suite 106, Clayton, NC 27520 Primary Project POC Bill Wright Phone: 919-590-5193 Seeding Contractor RiverWorks Construction 114 W. Main Street, Suite 106, Clayton, NC 27520 Primary Prosect POC Bill Wri ht Phone: 919-590-5193 Seed Mix Sources Green Resource 5204 Hiqhqreen Ct., Colfax, NC 27235 RodneyMont omer Phone: 336-215-3458 Nursery Stock Suppliers Foggy Mountain Nursery (Live Stakes) 797 Helton Creek Rd, Lansing, NC 28643 Glenn Sullivan Phone: 336-977-2958 Dykes & Son Nursery (Bare Root Stock) 825 Maude Etter Rd, Mcminnville, Tn 37110 Jeff Dykes Phone: 931-668-8833 Monitoring Performers Water & Land Solutions, LLC 11030 Raven Ridqe Road, Suite 200, Raleiqh, NC 27614 William Scott Hunt, III, PE Phone: 919-270-4646 Stream Monitoring POC Vegetation Monitoring POC lWilliam Scott Hunt, III, PE Phone: 919-270-4646 Wetland Monitoring POC IWilliam Scott Hunt, III, PE Phone: 919-270-4646 Parameters Reach 1 Reach 2 Reach 3 (upper) Reach 3 (lower) Reach 4 Length of reach (linear feet) 611 1173 770 130 1176 Valley confinement (Confined, moderately confined, unconfined) unconfined unconfined unconfined unconfined unconfined Drainage area (Acres and Square Miles) 96 acres, 0.15 sq mi 120 acres, 0.19 sq 211 acres, 0.33 sq 223 acres, 0.35 sq 55 acres, 0.09 sq mi mi mi mi Perennial, Intermittent, Ephemeral Intermittent Perennial Perennial Perennial Intermittent NCDWR Water Quality Classification C; NSW C; NSW C;NSW C; NSW C; NSW Stream Classification (existing) C5 G5c E5(incised) E5(incised) G5c/Pond Stream Classification (proposed) C5 C5 C5 C5, D5 C5 Evolutionary trend (Simon) I III/IV IV V III/IV FEMA classification N/A N/A N/A Zone AE N/A Wetland Summary Information Parameters Wetland 1 Wetland 2 Wetland 3 Size of Wetland (acres) N/A N/A N/A Wetland Type (non-riparian, riparian riverine or riparian non-riverine) Mapped Soil Series Drainage class Soil Hydric Status Source of Hydrology Restoration or enhancement method (hydrologic, vegetative etc.) Regulatory Considerations Parameters Applicable? Resolved? Supporting Docs? Water of the United States - Section 404 Yes Yes Categorical Exclusion Water of the United States - Section 401 Yes Yes Categorical Exclusion Endangered Species Act No Yes Categorical Exclusion Historic Preservation Act No N/A Categorical Exclusion Coastal Zone Management Act (CZMA or CAMA) No N/A N/A FEMA Floodplain Compliance Yes Yes Categorical Exclusion Essential Fisheries Habitat No N/A Categorical Exclusion Appendix B — Visual Assessment Data 9 Edwards -Johnson Mitigation Project Table 5. Visual Stream Morphology Stability Assessment Project Edwards -Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Reach ID R1, R2, R3 (upper) and R3 (lower) Assessed Length 3609 * Please make Note that the calculation for bank footage uses the total bank footage in the reach not the linear footage of channel. Therefore the denominator is 2 times the channel length in the calculation. For the above example this would be 430 divided by 5000 feet of bank = 91 Formulas exist in the cells above Number Numberwith Footage with Adjusted % for Stable, Number of Amount of % Stable, Stabilizing Stabilizing Stabilizing Major Channel Channel Performing as Total Number Unstable Unstable Performing as Woody Woody Woody Cate or Sub -Cate or Metric Intended in As -built Segments Footage Intended Vegetation Vegetation Vegetation 1. Bank 1. Scoured/Eroding Bank lacking vegetative cover resulting simply from poor growth and/or scour and erosion 0 0 100% 0 0 100 Banks undercut/overhanging to the extent that mass wasting 2. Undercut appears likely. Does NOT include undercuts that are modest, 0 0 100% 0 0 100 appear sustainable and are providing habitat. 3. Mass Wasting Bank slumping, calving, or collapse 0 0 100% 0 0 100 Totals 0 0 100% 0 0 100 2. Engineered Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs. 46 47 98 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill. 24 24 100 2a. Piping Structures lacking any substantial flow underneath sills or arms. 11 11 100 Bank erosion within the structures extent of influence does not 3. Bank Protection exceed 15%. (See guidance for this table in EEP monitoring 14 14 100 guidance document) Pool forming structures maintaining - Max Pool Depth : Mean 4. Habitat Bankfull Depth ratio > 1.6 Rootwads/logs providing some cover at 11 12 92 base -flow. * Please make Note that the calculation for bank footage uses the total bank footage in the reach not the linear footage of channel. Therefore the denominator is 2 times the channel length in the calculation. For the above example this would be 430 divided by 5000 feet of bank = 91 Formulas exist in the cells above Table 5a. Vegetation Condition Assessment Project Edwards -Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Planted Acreage' 3.6 CCPV Number of Mapping CCPV Number of Combined % of Planted Ve etation Category Definitions Threshold Depiction Polygons Acreage Acrea e Pattern and Pattern and 4. Invasive Areas of Concern" Areas or points (if too small to render as polygons at map scale). 1000 SF 1. Bare Areas Very limited cover of both woody and herbaceous material. 1 acre 0.0% 0 0.00 0.0% Color Color 2. Low Stem Density Areas Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria. 0.1 acres solid light blue 2 0.26 7.2% Total 2 0.26 7.2% Pattern and 3. 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 acres 0 0.00 0.0% Color Cumulative Total 2 0.26 7.2% Easement Acreage 10.97 Mapping CCPV Number of Combined % of Easement Ve etation Cateaory Definitions Threshold Depiction Polygons Acreage Acreage Pattern and 4. Invasive Areas of Concern" Areas or points (if too small to render as polygons at map scale). 1000 SF 0 0.00 0.0% Color 5. Easement Encroachment Areas' Areas or points (if too small to render as polygons at map scale). none yellow hatched 1 0.05 1.4% 33 s SY 33(( a q, - ,r "�- - '•- Tr — ^ r ¢: r� N� e �I Reach R1, facing upstream, April 12, 2018 (MY -00) Reach R1, facing upstream, December 6, 2018 (MY -01) ���' �,� ,q�. it t `a' M „_�'� - � � ry �•.�.. - � S'y" ,! �i1 I �' :-�. I:ati. ! r: r - ' � I v _ • �� � � -_� � r � _'� \�X'—�' � /tel �.• _ _ ,- `T y . Reach R1, facing upstream, April 12, 2018 (MY -00) Reach R1, facing downstream, December 6, 2018 (MY -01) vx F. .fir { t Y 4 , � -a n Reach R2, facing downstream, Sta 18+00, April 23, 2018 (MY -00) 1 1 y s a r Reach R2, facing upstream, Sta 17+00, Dec 6, 2018 (MY -01) ,r E j V,r Reach R2, facing downstream, Sta 18+00, Dec 6, 2018 (MY -01) s Reach R2, facing upstream, Sta 21+00, April 23, 2018 (MY -00) jr,' � ti ��i �, � ^ � i '�. -� • , � � � J .ern. °'F- .i� Reach R2, facing downstream, Sta 20+00, Dec 6, 2018 (MY -01) Reach R2, facing upstrel`a///!!mrrrwww, Sta 21+00, Dec 6, 2018 (MY -01) 3 k. i fry,/.tE 77�.`� y,- fii<i �l `' by � d � r y ! ��'4 �� � n�,f 'Q m s ��eet s Reach R2, facing downstream, Sta 20+00, Sept 17, 2018 (MY -00) 3 �! 5>•p�Y''i)r' ! r I s Reach R2, facing upstream, Sta 21+00, April 23, 2018 (MY -00) jr,' � ti ��i �, � ^ � i '�. -� • , � � � J .ern. °'F- .i� Reach R2, facing downstream, Sta 20+00, Dec 6, 2018 (MY -01) Reach R2, facing upstrel`a///!!mrrrwww, Sta 21+00, Dec 6, 2018 (MY -01) A 4S_ - A. Reach R2, facing upstream, Sta 26+00, April 23, 2018 (MY -00) Reach R2, facing upstream, Sta 26+00, Dec 6, 2018 (MY -01) M a a �f R" � n�y� ,a 1 � � �nY � i, a. _ � v� � �M'p G •a B 's''�.�F .' J'b �+ jc �i � � } ,,��z�,� dl � �i - %IIS ���_� ` �S �� . w �� P -5R '.�J� -. --� �3: �$ � .�_,�.�y/- `,A:.�•�. _� .' a v 0 • S .Jti�� ,,gg D a. a ti y 5 .tr ' r 3 � f �`.::.' . F. ,y,. :. ,, � -...- .d .' �..., � T>' � �-•;ice , _ _ Reach R3, facing downstream, Sta 32+00, April 19, 2018 (MY -00) Reach R3, facing downstream, Sta 32+00, June 11, 2018 (MY -01) 4• I k a� 7 Reach R4, facing downstream, Sta 13+00, June 11, 2018 (MY -00) Reach R4, facing upstream, Sta 13+00, Dec 6, 2018 (MY -01) * � t r � ' Reach R4, facing upstream, Sta 13+00, Dec 6, 2018 (MY -01) Reach R4, facing upstream, Sta 17+00, Dec 6, 2018 (MY -01) s ' � tar, -• �.•�� � - .. - Reach R4, facing upstream, Sta 17+00, Dec 6, 2018 (MY -01) ..+ - - I- � �N � � pis �� �• � . ��� � R� y a v 74 QT— i� Veg Plot 3 May 14, 2018 (MY -00) Veg Plot 3 November 5, 2018 (MY -01) ..)S }� aw- � C I Veg Plot 4 May 14, 2018 (MY -00) Veg Plot 4 November 5, 2018 (MY -01) *plot origin at corner to the right Appendix C — Vegetation Plot Data 9 Edwards -Johnson Mitigation Project Table 6. MY1 Stem Counts Edwards -Johnson Mitieation Proiect (NCDED DMS Proiect ID# 970801 Current Plot Data (MY1-20181 Annual Means Scientific Name Common Name Species Type 003-01-0001 PnoLS P -all T PnoLS 003-01-0002 P -all T PnoLS 003-01-0003 P -all T 003-01-0004 PnoLS P -all T MYO(2018) MYl(2018) PnoLS P -all T PnoLS P -all T Acer rubrum Red Maple Tree 2 2 11 5 1 1 1 1 2 2 17 Alnus serrulata Tag Alder, Smooth Alder, Hazel Alder Shrub Tree 3 3 3 Betula nigra River Birch, Red Birch Tree 3 3 3 2 2 2 1 1 1 1 1 1 8 8 8 7 7 7 Carpinus caroliniana Ironwood Shrub Tree 2 2 2 2 2 2 Cornus amomum Silky Dogwood Shrub Tree 2 2 2 3 3 3 8 8 8 5 5 5 Diospyros virginiana American Persimmon, Possumwood Tree 1 1 1 1 1 1 Fraxinus pennsylvanica Green Ash, Red Ash Tree 1 1 2 1 1 1 2 2 2 4 4 4 41 41 5 Ilex verticillata Winterberry Shrub Tree 1 11 1 Lindera benzoin Northern Spicebush Shrub Tree 3 3 3 4 4 4 1 1 1 11 11 11 8 8 8 Liquidambar styraci0ua Sweet Gum, Red Gum Tree 3 1 4 Liriodendron tulipifera Tulip Tree Tree 3 6 2 7 7 7 11 Platanus occidentalis Sycamore, Plane -tree Tree 3 3 3 1 1 1 1 1 2 2 2 2 10 10 10 7 7 8 Quercus michauxii Basket Oak, Swamp Chestnut Oak Tree 3 3 3 4 4 4 3 3 3 Quercus nigra Water Oak, Paddle Oak Tree 21 2 2 1 6 6 6 2 2 2 Quercus phellos Willow Oak Tree 21 2 21 4 4 41 1 2 21 4 7 7 7 8 8 10 Rhus typhina Staghorn Sumac Shrub 1 1 Salix nigra Black Willow Tree 6 6 Sambucus canadensis Common Elderberry Shrub Tree 5 5 Ulmus rubra Slippery Elm, Red Elm Tree 2 2 Stem count size (ares) size (ACRES) Species count Stems per ACREI 19 91 768.91 19 1 0.02 91 768.91 38 111 15381111111111111111111111111111111 15 61 15 23 1 0.02 61 81 607.031 930.8111111111111111111111111111111 7 7 22 1 0.02 41 41 81 283.31 890.3 8 8 14 1 0.02 51 5F-811 323. 323.71 566.611 70 70 70 49 491 97 4 4 0.10 0.10 1-2–F-121 121 111 11 17 708.21 708.21 708.2111111111111111111111 495.7 981.4 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% 9 Appendix D — Stream Measurement and Geomorphology Data Edwards -Johnson Mitigation Project Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R2 Cross Section ID X1 Field Crew C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation (ft) 244.2 Bankfull Cross Sectional Area (ft2) 5.2 XS Area Change from As -built (%) -5.8% Bankfull Width (ft) 7.7 Max Depth (ft) 1.1 Mean Depth (ft) 0.7 Width/Depth Ratio 11.4 Flood Prone Area Width (ft) 32.0 Entrenchment Ratio 4.2 Bank Height Ratio 1.0 NM 247 246 m 0 245 ca .T 244 LU 243 242 0 X1 Riffle, STA 18+77 Looking Downstream Baseline MYO MY1 — — Bankfull Elevation (Low TOB) Floodprone Area ------------------------------------------------------------------- y -------------------------- 10 17 Width (feet) 30 M Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R2 Cross Section ID X2 Field Crew C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation ft 241.3 Bankfull Cross Sectional Area (ft2) 6.1 XS Area Change from As -built % -8.8% Bankfull Width ft 13.3 Max Depth ft 1.6 Mean Depth ft 0.5 Width/Depth Ratio 28.8 Flood Prone Area Width ft 30.7 Entrenchment Ratio 2.3 Bank Height Ratio 0.9 245 244 243 m 242 0 241 CD M 240 239 238 to X2 Pool, STA 21+14 Looking Downstream Baseline MYO MY1 — — Bankfull Elevation (Low TOB) Floodprone Area 10 20 Width (feet) 30 Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R4 Cross Section ID IX3 Field Crew I C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation (ft) 239.7 Bankfull Cross Sectional Area (ft2) 11.0 XS Area Change from As -built (%) 6.7% Bankfull Width (ft) 9.3 Max Depth (ft) 2.3 Mean Depth ft 1.2 Width/Depth Ratio 7.9 Flood Prone Area Width (ft) 40.4 Entrenchment Ratio 4.3 Bank Height Ratio 1.0 245 244 243 242 m = 241 0 240 w 239 238 237 236 0 X3 Pool, STA 16+43 Baseline MYO MY1 — — Bankfull Elevation (Low TOB) 10 Looking Downstream Floodprone Area --------------- - - - - -�'-------------------------------------- 20 Width (feet) 30 .N 50 Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R4 Cross Section ID X4 Field Crew C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation (ft) 238.8 Bankfull Cross Sectional Area (ft2) 5.2 XS Area Change from As -built (%) -5.2% Bankfull Width (ft) 8.2 Max Depth (ft) 1.0 Mean Depth (ft) 0.6 Width/Depth Ratio 13.0 Flood Prone Area Width (ft) 38.2 Entrenchment Ratio 4.7 Bank Height Ratio 1.0 Looking Downstream X4 Riffle, STA 16+97 Baseline MYO MY1 — — Bankfull Elevation (Low TOB) Floodprone Area 245 244 243 242 241 C a 240 239 W----------- ------- -------------------- � --- --- ------------------ 238 237 236 0 10 20 30 40 Width (feet) Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R3 Cross Section ID X5 Field Crew C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation (ft) 234.3 Bankfull Cross Sectional Area (ft2) 5.3 XS Area Change from As -built (%) -12.9% Bankfull Width (ft) 8.0 Max Depth (ft) 1.3 Mean Depth (ft) 0.7 Width/Depth Ratio 12.1 Flood Prone Area Width (ft) 44.8 Entrenchment Ratio 5.6 Bank Height Ratio 1.0 Looking Downstream X5 Riffle, STA 28+24 Baseline MYO MY1 — — Bankfull Elevation (Low TOB) Floodprone Area 238 237 236 c 235 >-------------------------------------- -- -- ----- ---------------- 234 W 233 232 0 10 20 30 40 50 Width (feet) Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R3 Cross Section ID X6 Field Crew C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation (ft) 233.4 Bankfull Cross Sectional Area (ft2) 5.6 XS Area Change from As -built (%) -23.4% Bankfull Width (ft) 14.3 Max Depth (ft) 1.0 Mean Depth (ft) 0.4 Width/Depth Ratio 36.5 Flood Prone Area Width (ft) 44.5 Entrenchment Ratio 3.1 Bank Height Ratio 1.0 X6 Pool, STA 29+56 Baseline MYO MY1 — — Bankfull Elevation (Low TOB) Floodprone Area 236 235 ,2 234 c o ----------------------- ----------------------- - -------- --------- --- 233 as LU 232 231 0 10 20 30 40 50 Width (feet) Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Project Name Edwards -Johnson Mitigation Project Project ID 97080 Reach ID R3 Multi -Thread Channel Cross Section ID X7 Field Crew C. Manner, A. McIntyre DIMENSION DATA SUMMARY: MY1 2018 Low Top of Bank Elevation (ft) 230.7 Bankfull Cross Sectional Area (ft2) 4.7 XS Area Change from As -built (%) 4.4% Bankfull Width (ft) 18.1 Max Depth (ft) 0.3 Mean Depth (ft) 0.3 Width/Depth Ratio 69.7 Flood Prone Area Width (ft) 31.1 Entrenchment Ratio 1.7 Bank Height Ratio 1.0 X7 Riffle, STA 33+18 Baseline MYO MY1 — — Bankfull Elevation (Low TOB) Floodprone Area 233 232 CD 12 0 231 as LU 230 229 0 10 20 30 Width (feet) Edwards -Johnson Mitigation Project Water and Land Solutions DMS Project #97080 Annual Monitoring Report December 2018 Monitoring Year 1 of 7 Table 7a. Baseline Stream Data Summary Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Parameter Pre- Restoration Condition Reference Reach Data Design As-Built/ Baseline 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 - - - 1 Entrenchment Ratio 4.2 12.0 7.1 8.4 - - - Bank Height Ratiol 1.1 1 1.1 0.9 1.1 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)l 22.0 1 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 Ratiol 2.2 6.4 3.9 4.5 - - - - Transport Parameters Boundary Shear Stress (Ib/ft2) - - - - Max part size (mm) mobilized at bankfull - - - Stream Power (W/m2) - - - Additional Reach Parameters Rosgen Classification C5 E5/C5 E5/C5 E5/C5 Bankfull Velocity (fps) 4.1 4.5 - Bankfull Discharge (cfs) 20.0 --- - Sinuosity 1.21 1.1 -1.3 - Water Surface Slope (Channel) (ft/ft)l 0.010 1 0.015 1 - Bankfull Slope (ft/ft)l 0.012 1 0.015 1 - Parameter Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline 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 Ratiol 4.3 10.0 7.1 8.4 2.2 3.6 Bank Height Ratiol 1.1 1 1.6 1 0.9 1 1.1 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)l 22.0 1 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 (Ib/ft2) - - 0.49 - Max part size (mm) mobilized at bankfull - - 2.00 - Stream Power (W/m2) - -1 31.00 - Additional Reach Parameters Rosgen Classification G5 E5/C5 C5 C5 Bankfull Velocity (fps) 4.1 4.5 4.7 4.7 Bankfull Discharge (cfs) 26.0 - 26.0 26.0 Sinuosity 1.16 1.1 -1.3 1.17 1.17 Water Surface Slope (Channel) (ft/ft)l 0.011 0.015 0.011 0.012 Bankfull Slope (ft/ft)l 0.012 1 0.015 1 0.012 1 0.013 Parameter Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline Reach ID: R3 (lower) Preservation Dimension (Riffle) Min Max Min Max Min Max Min Max Bankfull Width (ft) 4.4 7.2 4.5 8.3 - - - - Floodprone Width (ft) 30.0 70.0 10.0 35.0 - - 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 3.3 5.3 3.0 5.0 - - - - Width/Depth Ratio 8.0 20.0 6.2 14.2 - - - Entrenchment Ratio 3.0 8.0 7.1 8.4 - - - - Bank Height Ratiol 1.0 1 - 0.9 1.1 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) 5.0 8.0 6.1 8.7 - - - - Pool Max Depth (ft) 1.3 1.7 1.8 2.4 - - - - Pool Spacing (ft)l 22.0 1 39.0 1 14.4 1 22.3 1 - I - 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) 1.6 2.9 1.6 2.5 - - - - Meander Wavelength (ft) 27.0 50.0 43.4 65.1 - - Meander Width Ratiol 6.4 1 8.5 1 3.9 1 4.5 - - - - Transport Parameters Boundary Shear Stress Ib/ft2) - - 0.49 - Max part size (mm) mobilized at bankfull - - 2.00 - Stream Power W/m2) - -1 29.00 - Additional Reach Parameters Rosgen Classification E5 E5/C5 - Bankfull Velocity (fps) 4.1 4.0 - Bankfull Discharge (cfs) 37.0 - - Sinuosity 1.21 1.1 -1.3 - Water Surface Slope (Channel) (ft/ft)l 0.008 1 0.015 1 - I- Bankfull Slope (ft/ft)l 0.009 1 0.015 1 - I - Parameter Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline 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 Ratiol 1.1 1 1.7 1 0.9 1 1.1 1 1.0 1.0 1 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)l 22.0 1 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 Ratiol 6.4 3.9 4.5 3.3 5.1 5.1 7.6 Transport Parameters Boundary Shear Stress (Ib/ft2) - - 0.51 - Max part size (mm) mobilized at bankfull - - 2.00 - Stream Power (W/m2) - -1 28.90 - Additional Reach Parameters Rosgen Classification E5 incised E5/C5 C5 C5 Bankfull Velocity (fps) 4.1 4.5 5.7 4.5 Bankfull Discharge (cfs) 34.0 - 34.0 34.0 Sinuosity 1.20 1.1 -1.3 1.20 1.16 Water Surface Slope (Channel) (ft/ft)l 0.007 0.015 0.009 0.009 Bankfull Slope (ft/ft)l 0.009 1 0.015 1 0.011 1 0.011 Parameter Pre-Restoration Condition Reference Reach Data Design As-Built/ Baseline 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 (ft) 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)l 38.0 1 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 - I - 3.9 4.5 1 3.3 1 5.3 3.0 6.0 Transport Parameters Boundary Shear Stress (Ib/ft2) - - 0.48 - Max part size (mm) mobilized at bankfull - - 2.00 - Stream Power (W/m2) - -1 24.50 - Additional Reach Parameters Rosgen Classification G5c C5 C5 C5 Bankfull Velocity (fps) 7.0 4.0 4.5 4.5 Bankfull Discharge (cfs) 16.0 - 16.0 16.0 Sinuosity 1.06 1.1 -1.2 1.15 1.14 Water Surface Slope (Channel) (ft/ft)l 0.019 0.015 0.017 0.017 Bankfull Slope (ft/ft)l 0.018 1 0.015 1 0.017 1 0.017 Table 7b. Monitoring Data - Dimensional Morphology Summary (Dimensional Parameters Edwards -Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) - Cross Sections) Cross Section 1 (Riffle) Cross Section 2 (Pool) Cross Section 3 (Pool) Cross Section 4 (Riffle) Cross Section 5 (Riffle) Parameters Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base 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 8.4 13.3 9.2 9.3 8.8 8.2 8.8 8 Floodprone Width (ft) 32 32 31 30.7 40 40.4 38 38.2 38 44.8 Bankfull Mean Depth (ft) 0.6 0.7 0.8 0.5 1.1 1.2 0.6 0.6 0.6 0.7 Bankfull Max Depth (ft) 1.2 1.1 1.7 1.6 2 2.3 1 1 1 1.3 Bankfull Cross Sectional Area ftp 5 5.2 6.7 6.1 10.4 11 5.5 5.2 5.5 5.3 Bankfull Width/Depth Ratio 16 11.4 10.6 28.8 8.2 7.9 14.313 14.3 12.1 Bankfull Entrenchment Ratio 3.6 4.2 3.7 2.3 4.3 4.3 4.3 4.7 4.3 5.6 Bankfull Bank Height Ratio1 1 0.9 0.9 1 1 1 1 1 1 d50 (mm) N/a N/a N/a N/a N/a N/a N/a N/a N/a N/a Cross Section 6 (Pool) Cross Section 7 (Riffle) Parameters Base MY1 MY2 MY3 MY4 I MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Bankfull Width (ft) 10.4 14.3 18.4 18.1 Floodprone Width (ft) 44 44.5 27 31.7 Bankfull Mean Depth (ft) 0.7 0.4 0.3 0.3 Bankfull Max Depth (ft) 1.4 1 0.4 0.3 Bankfull Cross Sectional Area (fe) 7.7 5.6 4.7 4.7 Bankfull Width/Depth Ratio 14 36.5 71.8 69.7 Bankfull Entrenchment Ratio 4.2 3.1 1.5 1.7 Bankfull Bank Height Rati4 1 1 1 1 d50 (mm) N/a N/a N/a N/a Table 7c. Monitoring Data - Stream Reach Summary Edwards-Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) Parameter Baseline MY1 MY2 MY3 MY4 MY5 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 and Profile data will not typically be collected unless visual data, dimensional data or profile data indicate significant deviations from baseline conditions Pattern Channel Beltwidth (ft) Radius of Curvature (ft) - Rc:Bankfull width (ft/ft) - Meander Wavelength (ft) - Meander Width Ratio Additional Reach Parameters - Rosgen Classification C5 Sinuosity (ft) 1.21 Water Surface Slope (Channel) (ft/ft) 0.01 BF slope (ft/ft) 0.012 3Ri% / Ru% / P% / G% / S% 3SC% / Sa% / G% / C% / B% / Be% d16/d35/d50/d84/d95 2% of Reach with Eroding Bank Channel Stability or Habitat Metri Biological or Othe Parameter Baseline MY1 MY2 MY3 MY4 MY5 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 C5 Sinuosity (ft 1.17 Water Surface Slope (Channel) (ft/ft 0.012 BF slope (ft/ft 0.013 3Ri% / Ru% / P% / G% / S% 3SC% / Sa% / G% / C% / B% / Be% d16/d35/d50/d84Id95 2% of Reach with Eroding Bank Channel Stability or Habitat Metri Biological or Other! Parameter Baseline MY1 MY2 MY3 MY4 MY5 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 C5 Sinuosity (ft) 1.16 Water Surface Slope (Channel) (ft/ft) 0.009 BF slope (ft/ft) 0.011 3Ri% / Ru% / P% / G% / S% 'SC% / Sa% / G% / C% / B% / Be% d16/d35/d50/d84/d95 2% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other Parameter Baseline MY1 MY2 MY3 MY4 MY5 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 6=Ei 3 6 Additional Reach Parameters Rosgen Classification C5 Sinuosity (ft) 1.14 Water Surface Slope (Channel) (ft/ft) 0.017 BF slope (ft/ft) 0.017 3Ri% / Ru% / P% / G% / S% 'SC% / Sa% / G% / C% / B% / Be% d16/d35/d50/d84/d95 2% of Reach with Eroding Banks Channel Stability or Habitat Metric Biological or Other I I I I VIII I I I I I I MY1 - Edwards -Johnson Mitigation Project, Sediment Sample 70% riffle 30% pool tweighted percent Riffle Pool # of particles 100% silt/clay sand gravel cobble boulder 20% 90% 18% 80% 16% 70% 14% cQ' CD CL 60% 12% CD c CD 50% 10% CD 40% 8% 21 30% 6% a 20% 4% 10% 2% v 0% 0% (DD 0.01 0.1 1 10 100 1000 10000 particle size (mm) Size (mm) Size Distribution Type D16 0.16 mean 0.6 silt/clay 7% D35 0.36 dispersion 3.9 sand 75% D50 0.62 skewness 0.00 gravel 18% D65 1.1 cobble 0% D84 2.4 boulder 0% D95 #N/A I I I I VIII I I I I I I Table 8. Verification of Flow Events Edwards.lohnson Mitigation Project (NCDEO DMS Project IDM 97080) Greater than Bankfull(Bkf)or Date of Data Collection Date of Gec,- Method Ogs (02`0.66) Stage? Photo/ Notes Observed indicators of bankfull stage (wrack 9/17/2018 9/18-9/17/2018 Bkf Photos lines) after storm event F 9117/2018 Monthly Rainfall Data Edwards -Johnson Mitigation Project (NCDEQ DMS Project ID# 97080) MY1 2018 30-70 Percentile Rainfall Graph Smithfield, NC (COOP 317994) 70% IG Jan -18 3.63 9 3.11 Feb -18 2.60 4.79 1.79 Mar -18 3.35 5.74 8 Apr -18 1.81 7 3.83 May -18 1 c 6 4.68 8.68 0 3.05 1 5.50 m Jul -18 4.14 5 5.4 Aug -18 .2- 6.21 7.98 m a` 2.97 5.15 3 Oct -18 1.63 2 1 1.55 Nov -18 1 3.58 4.83 Dec -18 ** ** O Jan -18 Feb -18 Mar -18 Apr -18 May -18 Jun -18 Jul -18 Aug -18 Sep -18 Oct -18 Nov -18 Date Observed Rainfall -30th Percentile -70th Percentile *30th and 70th percentile rainfall data collected from weather station (COOP 317994) in Smithfield, NC. **Incomplete Month Month 30% 70% Observed Jan -18 3.63 6.07 3.11 Feb -18 2.60 4.79 1.79 Mar -18 3.35 5.74 4.12 Apr -18 1.81 3.84 3.83 May -18 1 2.74 4.68 8.68 Jun -18 3.05 1 5.50 1.25 Jul -18 4.14 7.08 5.4 Aug -18 3.36 6.21 7.98 Sep -18 2.97 5.15 9.87 Oct -18 1.63 3.81 1 1.55 Nov -18 1.54 3.58 4.83 Dec -18 ** ** ** Groundwater Gauge Data Edwards -Johnson Mitigation Project (NCDEO DMS Project ID# 97080) MY1 2018 Annual Precip Total Max Consecutive Hydroperiod: Saturation within 12 Inches of Soil WETS 30th Percentile Surface (Percent of Growing Season) Monitoring Gauge Name WETS Station: 317994 - Smithfield Growing Season: 4/6-11/4 (227 Normal 2018 2019 2020 2021 2022 2023 2024 Mean Edwards -Johnson Reference Wetland M M Annual Precip Total 0 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 WATER & LAND SOLUTIONS 7721 SIX FORKS ROAD, SUITE 130, RALEIGH, NC 27615 (919) 614 - 5111 1 waterlandsolutions.com March 01, 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 6 Draft Baseline Monitoring Report and Task 7 Draft Monitoring Report Year 1 for the Edwards -Johnson Mitigation Project, NCDEQ DMS Full -Delivery Project ID #97080, Contract #6825, Neuse River Basin, Cataloging Unit 03020201, Johnston County, NC Dear Ms. Crocker: Water & Land Solutions, LLC (WLS) is pleased to present the Final Baseline Monitoring Report and Final Monitoring Report Year 1 for the Edwards -Johnson Mitigation Project to the North Carolina Department of Environmental Quality (NCDEQ) Division of Mitigation Services (DMS). The Final Baseline Monitoring Report and the Final Monitoring Report Year 1 were developed by addressing NCDEQ DMS's review comments. Under this cover, we are providing the required three (3) hard copies of the Final Baseline Monitoring Report and the Final Monitoring Report Year 1, 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 Baseline Monitoring Report and Draft Monitoring Report Year 1 below. Each of the DMS review comments is copied below in bold text, followed by the appropriate response from WLS in regular text: Field Notes: DMS Comment: Update posts and/or signage up to specifications in the lower wooded section. Ensure locations are correct. WLS Response: All conservation easement boundary marking has been re -installed and/or corrected to meet or exceed the specifications as set forth in the NCDEQ DMS "Survey Requirements for Full Delivery Projects", Version 08/13/13, with the installation including the following: • Posts: ■ Type: Steel U -channel. ■ Length: 8 foot total length, with posts drive -installed approximately 2 feet deep to provide an installed height of approximately 6 feet above the ground. ■ Weight: 2lbs/ft. ■ Coating: Factory coated with dark green enamel and at least 6 inches of the top of the post painted bright yellow. • Signs: ■ Type: Standard NCDEQ DMS aluminum conservation easement signs supplied by Voss Signs. ■ Spacing: Signs installed at each conservation easement corner, approximately 1 foot outside of each conservation easement corner marker. Signs installed as necessary along conservation easement boundary lines, between conservation easement corners, such that the maximum sign spacing interval is 200 feet. • Post attachment: 3/8" aluminum drive rivets. DMS Comment: If desired for future reports, extend XS -7 further across the headwater valley to capture potential future stream movement. Update cross section to reflect this in MYO and baseline if desired. WLS Response: WLS will plan to extend the horizontal limits of Cross Section 7 at Reach R3 Lower, as suggested, during Monitoring Year 2 to more completely span the headwater stream valley for monitoring potential stream dimension adjustments. DMS Comment: GPS wetland reference gauge and locate in proper location on CCPV and provide updated shapefile. WLS Response: WLS has field located the wetland reference gauge as shown on the updated CCPV map. We have included the wetland gauge location with the GIS shapefiles in the correct projections. DMS Comment: Crest gauge shown in field is not shown on CCPV. Capture this shape and add to CCPV and provide shapefile. WLS Response: WLS has field located the crest gauge as shown on the updated CCPV map. We have included the crest gauge location with the GIS shapefiles in the correct projections. Electronic Deliverables: • DMS Comment: DMS does not need Adobe files of any tables or graphs because they are available in the report in that format. Remove from deliverable submittals. Raw files are required. WLS Response: WLS will removed Adobe pdf files from future deliverable submittals as requested. • DMS Comment: Hydro folder in support file appears to be from another project. Update. WLS Response: The correct data had been added to the Hydro Folder as requested. • DMS Comment: Provide the wetland reference gauge, crest gauge from MYO; provide encroachment shapefile, vegetative areas of concern for MY1. WLS Response: WLS has included referenced features with the GIS shapefiles in the correct projections as shown on CCPV. • DMS Comment: Provide a shapefile of the stream asset that matches the asset table (from Mitigation Plan shapes). This asset file should match the linear feet of credit in the original asset table and be broken out and attributed (in the attribute table) by stream reach just like the Table 1. WLS Response: WLS has corrected the shapefile and verified the stream lengths match the assets presented in Table 1. • DMS Comment: The As -built center line does not match the as -built table (Table 1). Update shapefile to cut out any asset outside the easement and attribute each feature to match Table 1 in the attribute table. WLS Response: WLS has corrected the shapefile and verified the stream lengths match the assets presented in Table 1. • DMS Comment: As a note, once DMS receives and approves GIS data for asset and monitoring features, the only shapes that will be required in future submissions are vegetative areas of concern. WLS Response: WLS appreciates the clarification and will make sure to provide the correct GIS data as required for the future submissions. As -Built Report: 1. DMS Comment: Add the DWR number on the cover page (DWR 2016-0404). WLS Response: The NCDEQ DWR Project Number (NCDEQ DWR Project # 2016-0404) has been added as requested to the cover page for the As -built Baseline Monitoring Report and Monitoring Report Year 1 where previously missing. 2. DMS Comment: Page 1 and 2, WLS lists 3,781 linear feet of stream, but the numbers in the tables don't add up to that. Where is that number from? Please correct and update. WLS Response: WLS has corrected and verified the stream lengths match the assets presented in Table 1. 3. DMS Comment: Page 1 and 2, the LWP goals and site-specific goals are duplicated on these pages. Remove the sets in the Project Objective and just keep in the Mitigation Objective section. WLS Response: The referenced language regarding LWP goals and site specific goals have been removed from Section 1 Project Summary as requested. 4. DMS Comment: Page 3, the Objectives and Performance standards listed in this bullet list do not match the Mitigation Plan. See page 2S and S2 of your Mitigation Plan. Why is WLS proposing to add items to document project success? You can use these same tables from Mitigation Plan in all your future reports to avoid confusion if desired. WLS Response: Sub -section 2.2 Mitigation Project Goals and Objectives and Section 4 Performance Standards have been revised as requested to match those in the approved final mitigation plan, including the addition of the referenced tables from the approved final mitigation plan. S. DMS Comment: Page 2, 2.3 this first paragraph contains dates that don't match the dates on the Table 2. Update table and/or section to reflect accurate dates that match. WLS Response: All references to dates in each of the As -built Baseline Monitoring Reports and Monitoring Reports Year 1 and in Table 2, have been checked and edited/corrected as necessary for consistency, as requested. 6. DMS Comment: Page 2, 2.3, paragraph 2, please remove first two sentences and reference to WLS contract as this is not relevant to report and does not match asset table in Mitigation Plan or As -built, nor does it reflect project assets. WLS Response: The referenced sentences have been removed from the Sub -section 2.3 Project History, Contacts, and Timeframe as requested. 7. DMS Comment: Page 11, 6.1, the dates in this first paragraph don't match the dates on Table 2. Update table and/or section to reflect accurate dates that match. WLS Response: All references to dates in each of the As -built Baseline Monitoring Reports and Monitoring Reports Year 1 and in Table 2, have been checked and edited/corrected as necessary for consistency, as requested. B. DMS Comment: Page 11, 6.3.1.1, Does WLS want to indicate this field change decision was discussed via phone with Andrea Hughes or the update to a wider easement because of decision? OK as is, just thought it might be good for record if desired. WLS Response: WLS edited the referenced language Sub -section 6.3.1.1 Stream Horizontal Pattern & Longitudinal Profile, as suggested, to read as follows: "During project construction, the alignment of the lower end of R3 and the corresponding conservation easement boundaries were revised slightly from what was proposed to in the approved final mitigation plan. This section of R3 was restored by re -diverting the reach flow to the historic abandoned multi -thread channel (approximate stations 33+07.35 to 37+43.92), rather than constructing the new single thread alignment proposed in the approved final mitigation plan. This field adjustment restored a more natural diffuse flow pattern within the topographic low -point of the valley while minimizing disturbance to existing jurisdictional wetlands and native species vegetation in this area. The described field adjustment was discussed by phone with and approve by Andrea Hughes (USACE, NCIRT) in early May 2018 immediately prior to implementation. See appendices for as -built plans." 9. DMS Comment: Table 1. If you are using Mitigation Plan numbers for the assets on this project, update total Stream Linear feet to match that (2,949 instead of 2,934). WLS Response: WLS has corrected and verified the stream lengths match the assets presented in Table 1. 10. DMS Comment: Add a footnote below Table 1 indicating that you will use Mitigation Plan numbers for project assets. WLS Response: The following footnote has been added to Table 1 as suggested: "Mitigation Credits are from the final approved mitigation plan, as verified by the as -built survey." 11. DMS Comment: Page 12, Vegetation section and Revegetation Plan in As -Built drawings: Please indicate the area that was planted (how much area planted and where on map) and if there were any changes from the planting plan. This should be where you show any substitutions. For instance, 'winterberry' was not on planting plan but in Table 6 as planted, and the vegetation plots are only showing 9 of the proposed 19 plants proposed. Use a red line if they were not all used and add any substitutions. This will be helpful with volunteers (of the same planted species) if you need to meet success with them in the future. Can add a table if this would be helpful. WLS Response: WLS Response: The Revegetation Plan Sheets in the as -built plan set depict the as -built planted areas correctly, as depicted with the planting zone hatching, as shown in the planting zone legend on each sheet. The planting schedule on the Revegetation Plans has been "redlined", as requested, to reflect the referenced plant substitutions (a total of 1 species deletion and 3 species substitutions). 12. DMS Comment: Morphological Table R3 (Upper), it appears you may have the max and min of the dimensions parameters switched (max showing min and vis versa). Double check this is correct. WLS Response: WLS has corrected the stream dimensions min/max in the morphological tables. MY1 Report: 1. DMS Comment: See comments 1-7,9, and 10 from MYO report above and update MY1 with same. WLS Response: The referenced DMS comments listed and addressed herein, along with the corresponding edits, corrections, and additions made to the As -built Baseline Monitoring Reports, have also been addressed and made, respectively, as appropriate, to the Monitoring Reports Year 1 Reports as requested. 2. DMS Comment: Page 1, last paragraph: first paragraph contains dates that don't match the dates on the Table 2. Update table and/or section to reflect accurate dates that match. WLS Response: All references to dates in each of the As -built Baseline Monitoring Reports and Monitoring Reports Year 1 and in Table 2, have been checked and edited/corrected as necessary for consistency, as requested. 3. DMS Comment: Page 7, Bankfull events, please reference Table 8 for verification of bankfull events. Also, you state that there were 2 events but only one is showing in the table. Table 8 in the notes sections should contain notes (Example: how much rain occurred that date, what elevation was the crest gauge showing). Update and clarify. WLS Response: The requested reference to Table 8 has been added to Sub -section 5.1 Stream Hydrology, as requested, and the sub -section has been edited for clarification as follows: "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 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. Because the crest gage was installed after the submission of the Draft As -built Baseline Monitoring Reports and Draft Monitoring Reports Year 1, only the described photographic measures will be used for Year 1 stream hydrologic monitoring. At least one bankfull events occurred during MY1. This event was documented using the described photography (Table 8). The documented occurrence of this flow event satisfies the requirement of the occurrence of one of the two bankfull events (overbank flows) and the one of the two "geomorphically significant" flow events (Qgs=0.66Q2) within the monitoring period, along with floodplain access by flood flows." 4. DMS Comment: Page 7, jurisdictional stream flow, you can't state in a report that the site meets success criteria for flow when your monitoring device was not functioning. This was stated on Page 1 and Page 6. Revise report to state that this success criteria is not met or unknown for flow. WLS Response: WLS has removed the two noted references to meeting the jurisdictional stream flow success criteria (due to flow gage malfunction), and the following sentence has been added to the end of Sub -section 5.4 Jurisdictional Stream Flow Documentation for clarification: "WLS did observe stream flow along Reach R4, as well as along all of other project reaches, during each pre- and post - construction site visit in 2018, with WLS staff visiting the site on a monthly basis. These observations correspond do the monitoring flow gage documentation results at the nearby Lake Wendell and Pen Dell Mitigation Project Sites." 5. DMS Comment: Page 8, first paragraph states that there were no negative changes to vegetation with visual assessment but then goes on to describe some negative changes. Suggest removing this sentence as it is misleading. WLS Response: The referenced sentence in Sub -section 5.5 Vegetation was revised as requested to read as follows: "The results of the visual assessment did not indicate any significant negative changes to the existing vegetation community.". 6. DMS Comment: Page 8, wetland gauge: the installation and monitoring of this device was agreed to by WLS and DWR, although DMS advised WLS that they were not contractually required. WLS documented understanding of installing 2 gauges on this project in their comment responses to the IRT. Can WLS provide email or correspondence from DWR / IRT showing that a lesser number of gauges were accepted for inclusion in the MYO and/or MY1 report? WLS Response: WLS has revised the referenced Wetlands Subsection of the As -built Baseline Monitoring Report and Monitoring Report Year 1 to explain that the two requested and agreed upon groundwater monitoring wells have been installed, as follows: "One groundwater monitoring well was installed during the baseline monitoring within an existing wetland area along Reach R3. The well data was unrecoverable and therefore an additional groundwater monitoring well was installed along Reach R3 (preservation) after the first year of monitoring, in early January 2019. The wells were installed to document groundwater levels within the stream and wetland restoration for reference and comparison to the preservation areas, at the request of the NCIRT (DWR)." 7. DMS Comment: Table 6, There are more species showing as planted on this table between MYO and MY1. What is going on? Any mis-identification should be footnoted at bottom of table for clarification. Why is Red Maple shown as planted? QA/QC both of these tables. WLS Response: For Monitoring Year 0/Baseline, the referenced table is "Table 6., Planted Stem Counts", and for Monitoring Year 1, the referenced table is "Table 6., Planted and Total Stem Counts". As such, the differences in the species types and numbers reported in the referenced tables between Monitoring Year 0/Baseline and for Monitoring Year 1 reflects stem mortality and volunteer stem recruitment. WLS does not believe that there are any species mis-identification. Red maple was planted as proposed in the final approved mitigation plans. 8. DMS Comment: Geomorph data: XS -6 (pool) is showing signs of aggrading, but this is not discussed in the verbiage for this report. Do you have any concerns or feel that it is necessary to mention this in the report along with an explanation as to why this is not a big deal? WLS Response: WLS is not concerned about the adjustments to the referenced pool cross section, as it appears to be a minor channel adjustment towards the expected and desired stream dimension and stability. WLS used the new method for calculating adjusted BHRs. The adjusted bankfull elevation using the comparable as -built cross-sectional is approximately two tenths and therefore the BHR would be —0.87 (<1). The morph table parameters have been updated to reflect this change. 9. DMS Comment: Tables after 7c. are not filled out with MY1 data. Update report. WLS Response: WLS is not sure what the issue is with the "worksheets" following Table 7C in the version of the EJ_97080_MY1_Annual_Rep_Tables.xls file DMS received, as the original WLS file has all of the appropriate data filled in and presented on the referenced "worksheets". Please use re -submitted version of the referenced file. 10. DMS Comment: Groundwater gauge data: is this a malfunction or purposeful omission? WLS Response: The groundwater monitoring gage was not installed correctly by WLS and therefore no data was collected for Monitoring Year 1. WLS has resolved this issue and groundwater monitoring will be conducted for all subsequent monitoring years. Other Comments: DMS Comment: There is a lot of repetition of verbiage from the mitigation plan, which is good but cumbersome. Much of the written information could be made into bullets or tables for a faster update of future reports and ease of reading in terms of monitoring success. This may be a suggestion for future reports? (Example you have a table in the Mitigation Plan that could replace all of Sections 4 (Table 22 in mitigation plan) and the 'Functional Uplift' column could be replaced with Monitoring Success where you indicate the number of monitoring features and their success results in lieu of verbiage. No response required here. WLS Response: WLS will definitely take these recommendations into consideration for future reports and we sincerely appreciate the guidance. Please contact me if you have any further questions or comments. Sincerely, Water & Land Solutions, LLC William "Scott" Hunt, III, PE Vice President of Technical Operations 7721 Six Forks Road, Suite 130 Raleigh, NC 27615 Office Phone: (919) 614-5111 Mobile Phone: (919) 270-4646 Email: scott@waterlandsolutions.com