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HomeMy WebLinkAbout20160981 Ver 1_Year 4 Montoring Report_20221028Laserfiche Forms has encountered a problem. An unexpected error has occurred. [LFF502-Unexpected Error] 3600 Glenwood Avenue, Suite 100 Raleigh, NC 27612 Corporate Headquarters 6575 West Loop South, Suite 300 Bellaire, TX 77401 Main: 713.520.5400 October 28, 2022 Samantha Dailey U.S. Army Corps of Engineers Regulatory Division 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 UzzleYear 4Monitoring Report(SAW-2016-01973) Samantha, Please find attached the UzzleYear 4MonitoringReport.In Year 4, all fourfixed vegetation plots met the 320 stems per acre success criteria. Sevenbankfull events were recorded on the stage recorder on LP1, marking the fourth year of recorded bankfull events. Cross Sections 1 and 2 showed some bank erosion; however,RES performed a supplemental livestake planting and will continue planting more shadeadapted livestakes to establish stability along these banks. Groundwater Well 1 recorded a 2% hydroperiod and Groundwater Well 2 recorded a 21% hydroperiod. Groundwater data is only shown from April 7th until September 20th due to both wells being destroyed from an animal in early 2022. New wells have been installedto replace the destroyed ones; the wells were moved to a new location very close to their original locations. Afew small areas of re-sprouted Chinese privet observed in 2019 in the lower section of the easement were treated in early 2020 and again in Mayof 2021 and will continue as needed throughout the monitoring period.Year 4visual assessments of the easement boundary found no encroachments or evidence of cattle entry. A small repair was being performed in the utility easement adjacent to the project in mid-2020, however, there was no sign of excess sediment runoff or concentrated flow through the riparian area. Highway 70 expansion is currently occurring along the easement boundaries. RES is monitoring the easement on a regular basis to ensure that no encroachment or issues are impacting our easement as construction is occurring. RES is requesting a 5% stream credit release(143.80SMUs)for the completion of the Year 4monitoring report. RES is requesting a 10% stream credit release (287.60 SMUs) forthe bankfull event performance standard being met. Please see enclosed the credit release timeline and an updated credit ledger. On December 1, 2021, the IRT provided comments on the Uzzle Year 3Monitoring Report.Please find those comments below with RES’ responses in blue. Todd Tugwell, USACE: 1. Cross sections 1 and 2 show some signs of migration and/or incision and wereaddressed in the report. Please address these conditions in more detail insubsequent reports and include photographs of the areas in question. Werethese conditions noted in other areas than just at the two cross-sections? res.us Further details on XS 1 & 2 have been added in Section 1.7 under stream geomorphology and pictures can be found in Appendix B. These conditions were not noted in areas outside the area of XS 1 & 2. Erin Davis, NCDWR: 1. What species were used in the early 2021 supplemental planting effort? Species included in the supplemental planting were willow oak (Quercus phellos), water oak (Quercus nigra), overcup oak (Quercus lyrata), American sycamore (Platanus occidentalis), and river birch (Betula nigra). 2. I appreciate the inclusion of the easement boundary photos. Noted. 3. The GW1 low hydroperiod is concerning. I’m glad there is a plan to collect additional data if needed. RES expects the hydroperiods to increase in future monitoring years as the site adjusts. Additional detail on GW1 has been included in Section 1.7 under wetland hydrology. 4. Figure 2 CCPV – It’s helpful for review if items discussed in the report narrative are shown/called-out on the CCPV (e.g. invasive treatment completed/proposed, supplemental planting completed/proposed, streambank erosion monitoring/repaired, other SPAs & VPAs). Figure 2 has been updated to include supplemental planting in 2021, supplemental livestakes, and invasive treatment completed. Thank you, Jamey Mceachran 2 Date 6/6/2019 8/19/20192/25/202012/1/2021 11/20/2020 Actual Release 4 Date Varies Projected 12/31/202212/31/202312/31/202412/31/202512/31/2026 Release Date NANANA Coastal Credits NANANA 15%15%10%15%20%10%15% Releases Scheduled Non-Forested Wetland Johnston030202012/1/201910/28/2022 NA Credits Coastal Wetland Non-Riparian Non-Forested NA Riparian Non-RiparianNon-Riverine County:8-Digit HUC:Year Project Instituted:Date Prepared: NA Forested Wetland Credits RiparianRiverine Riparian Non-Riverine Forested Wetland Credits NA 5%5% 15%15%10%10%15%15%10% Riverine Riparian Releases Scheduled Current and Future Credit Releases Cold Cold WaterWater Cool Cool WaterWater Wilmington District Mitigation Bank Credit Release Schedule Total Potential Credits Stream Credits 2,8762,876 Warm Warm WaterStream CreditsWater 431.40431.40287.60287.60287.60143.80287.60143.80287.60287.60 1725.60 5%5% 10% 15%15%10%10%10%10%10%60% Releases Scheduled Uzzle Stream Mitigation ProjectEBX-Neuse ISAW-2016-019732016-0981v1 1, 2 Signature of Wilmington District Official Approving Credit Release 4 3 Credit Classification 2 (Year 0/As-Built) 3 (Year 1 Monitoring)4 (Year 2 Monitoring)5 (Year 3 Monitoring)6 (Year 4 Monitoring)7 (Year 5 Monitoring)8 (Year 6 Monitoring)9 (Year 7 Monitoring) Potential Credits from As-Built Survey Potential Credits from Mitigation Plan Credit Release Milestone Stream Bankfull Standard Total Credits Release to Date 1 (Bank/Site Establishment) Project Name:Sponsor Name:USACE Action ID:NCDWQ Action ID:Contingencies (if any): None 1 - The first credit release milestone is based on the potential credits stated in the approved mitigation plan.2 - The first credit release shall occur upon establishment of the mitigation bank, which includes the following criteria: 1) Execution of the MBI or UMBI by the Sponsor and the USACE; 2) Approval of the final Mitigation Plan; 3) Mitigation bank site must be secured; 4) Delivery of the financial assurances described in the Mitigation Plan; 5) Recordation of the long-term protection mechanism and title opinion acceptable to the USACE; 6) 404 permit verification for construction of the site, if required.3 - The second credit release is based on the credit totals from the as-built survey, and may differ slightly from the credit totals stated in the mitigation plan.4 - A 15% reserve of credits to be held back until the bankfull event performance standard has been met. UZZLE STREAM MITIGATION SITE JOHNSTON COUNTY, NORTH CAROLINA SAW-2016-01973 YEAR 4 MONITORING REPORT Provided by: Bank Sponsor: EBX-Neuse I, LLC, An entity of Resource Environmental Solutions 3600 Glenwood Avenue, Suite 100 Raleigh, NC 27612 919-209-1056 October 2022 Table of Contents 1.0 Project Summary ..................................................................................................................................... 2 1.1 Project Location and Description .............................................................................................. 2 1.2 Project Goals and Objectives..................................................................................................... 2 1.3 Project Success Criteria ............................................................................................................. 3 Stream Success Criteria ................................................................................................................... 3 Vegetation Success Criteria ............................................................................................................. 4 1.4 Project Components .................................................................................................................. 4 1.5 Stream Design/Approach .......................................................................................................... 5 1.6 Construction and As-Built Conditions ...................................................................................... 6 1.7 Year 4 Monitoring Performance (MY4) .................................................................................... 6 Vegetation ........................................................................................................................................ 6 Stream Geomorphology ................................................................................................................... 6 Stream Hydrology ............................................................................................................................ 7 Wetland Hydrology .......................................................................................................................... 7 2.0 Methods................................................................................................................................................... 7 3.0 References ............................................................................................................................................... 8 Appendix A: Background Tables Figure 1: Site Location Map Table 1: Project Mitigation Assets and Components Table 2: Project Activity and Reporting History Table 3: Project Contacts Table Table 4: Project Background Information Table Appendix B: Visual Assessment Data Figure 2: Current Conditions Plan View Vegetation Plot Photos Monitoring Device Photos General Monitoring Photos Stream and Vegetation Problem Areas Appendix C: Vegetation Plot Data Table 5: Planted Species Summary Table 6: Vegetation Plot Mitigation Success Summary Table 7. Stem Count Total and Planted by Plot Species Appendix D: Stream Measurement and Geomorphology Data Table 8. Baseline Stream Data Summary Table 9. Cross Section Morphology Data Table Cross-Section Plots Appendix E: Hydrology Data Table 10. 2022 Rainfall Summary Table 11. Documentation of Geomorphically Significant Flow Events Table 12. 2021 Max Hydroperiod Table 13. Summary of Groundwater Monitoring Results MY4 Groundwater Hydrographs Uzzle 1 Year 4 Monitoring Report Stream Mitigation Site October 2022 1.0 Project Summary 1.1 Project Location and Description The Uzzle Stream Mitigation Site (the Site), a component of the Neu-Con Stream and Wetland Umbrella Mitigation Bank, is located in Johnston County, North Carolina, approximately six miles southeast of Clayton. Water quality stressors currently affecting the Site include livestock production, agricultural production, and improper flow dynamics due to impervious surface runoff. The Site presents 5,897 linear feet of stream restoration and enhancement generating 2,876 Stream Mitigation Units (SMU) along Little Poplar Creek and two unnamed tributaries. The Site is located in the Neuse River Basin within Cataloging Unit 03020201, TLW 03020201100040, part of the Neuse Regional Watershed Planning (RWP) area, and the Wake-Johnston Collaborative Local Watershed Plan (WJCLWP). As part of the RWP and WJCLWP, the Site is located in a sub-watershed identified as High Priority for stream corridor restoration due to current surrounding land use, hydrologic impairment due to stormwater runoff, and projected impact from highway development. Originally, consisting of pastureland and wooded areas, the Site’s total easement area is 27.3 acres within the overall drainage area of 1,312 acres. Grazing livestock historically had access to all stream reaches within the Site and the lack of riparian buffer vegetation, deep-rooted vegetation, and unstable channel characteristics contributed to the degradation of stream banks throughout the Site. Prior to restoration work, erosion and aggradation were especially prominent at the upstream end of the Site where Little Poplar Creek enters via a culvert under HWY US-70. The stream design approach for the Site was to combine the analog method of natural channel design with analytical methods to evaluate stream flows and hydraulic performance of the channel and floodplain. The analog method involves the use of a reference reach, or “template” stream adjacent to, nearby, or previously in the same location as the design reach. The template parameters of the analog reach are replicated to create the features of the design reach. The analog approach is useful when watershed and boundary conditions are similar between the design and analog reaches. Hydraulic geometry was developed using analytical methods to identify the design discharge. The Site will be monitored on a regular basis throughout the seven-year post-construction monitoring period, or until performance standards are met. Upon approval for closeout by the Interagency Review Team (IRT), the Site will be transferred to the North Carolina Wildlife Habitat Foundation (NCWHF). The NCWHF will be responsible for periodic inspection of the Site to ensure that restrictions required in the Conservation Easement, or the deed restriction document(s) are upheld. Endowment funds required to uphold easement and deed restrictions will be negotiated prior to site transfer to the responsible party. This site is co-located with a DWR Riparian Buffer Bank. The width of the riparian restoration and enhancement areas where buffer or nutrient offset credits are generated will begin at the most landward limit of the top of bank and extend landward to a distance of at least 50 feet perpendicular to the streams, then again 151-200 feet from the top of bank. There will be no overlapping buffer crediting areas with stream crediting areas between 51-150 feet from the top of bank. 1.2 Project Goals and Objectives Through the comprehensive analysis of the Site’s maximum functional uplift using the Stream Functions Pyramid Framework, specific attainable goals and objectives will be realized by the Site. These goals Uzzle 2 Year 4 Monitoring Report Stream Mitigation Site October 2022 address the excess nutrient input, streambank erosion, and sedimentation that were identified as major watershed stressors in the 2010 Neuse RBRP. The Site goals are: • Improve water transport from watershed to the channel in a non-erosive manner in a stable channel; • Improve water quality within the restored channel reach and downstream water sources by reducing sediment and nutrient loads, and increasing dissolved oxygen levels; • Improve flood flow attenuation on-site and downstream by allowing for overbank flows and connection to the active floodplain; and • Improve ecological processes by reducing water temperature, improving terrestrial and aquatic habitat, and restoring a native plant community. The Site objectives to address the goals are: • Design and construct stable stream channels with appropriate pattern, dimension, and profile based on reference reach conditions; • Permanently exclude livestock from stream channels and their associated buffers; • Add in-stream structures and bank stabilization measures to protect restored and enhanced streams; • Reduce bank height ratios and increase entrenchment ratios to reference reach conditions; • Maintain and improve forested riparian buffers to at least 50 feet on both sides of the channel along all reaches with a coastal plain hardwood riparian community; • Treat exotic invasive species; and • Establish a permanent conservation easement on the Site. Limitations to achieving these watershed goals arise by remaining constrained to our Site boundaries. While we are restoring the habitat and streams to stable and effective conditions that achieve our goals within the Site parcels, we are unable to influence the effect of poor riparian buffers and livestock impact in other areas within the watershed. However, through this Site’s connectivity with other projects in the watershed and responsible stewardship of current restoration projects, overall watershed functionality and health will improve to meet the RBRP goals. 1.3 Project Success Criteria The Site follows the USACE 2003 Stream Mitigation Guidelines, and the “Wilmington District Stream and Wetland Compensatory Mitigation Update” dated October 24, 2016. Cross section and vegetation plot data will be collected in Years 0, 1, 2, 3, 5, and 7. Stream and wetland hydrology data and visual monitoring will be reported annually. Stream Success Criteria Four bankfull flow events must be documented within the seven-year monitoring period. The bankfull events must occur in separate years. Otherwise, the stream monitoring will continue until four bankfull events have been documented in separate years. There should be little change in as-built cross-sections. If changes do take place, they should be evaluated to determine if they represent a movement toward a less stable condition (for example downcutting or erosion) or are minor changes that represent an increase in stability (for example settling, vegetative changes, deposition along the banks, or decrease in width/depth ratio). Cross sections shall be classified using the Rosgen stream classification method, and all monitored cross-sections should fall within the quantitative parameters defined for channels of the design stream type. Bank height ratio shall not exceed Uzzle 3 Year 4 Monitoring Report Stream Mitigation Site October 2022 1.2, and the entrenchment ratio shall be no less than 2.2 within restored reaches. Channel stability should be demonstrated through a minimum of four bankfull events documented in the seven-year monitoring period. Digital images will be used to subjectively evaluate channel aggradation or degradation, bank erosion, success of riparian vegetation, and effectiveness of erosion control measures. Longitudinal images should not indicate the absence of developing bars within the channel or an excessive increase in channel depth. Lateral images should not indicate excessive erosion or continuing degradation of the banks over time. A series of images over time should indicate successional maturation of riparian vegetation. Vegetation Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the Site will follow IRT Guidance. Vegetation monitoring plots will be a minimum of 0.02 acres in size, and cover a minimum of two percent of the planted area and there will be a minimum of four plots. Vegetation monitoring will st occur between July 1 and leaf drop. The interim measures of vegetative success for the site will be the survival of at least planted three-year old trees per acre at the end of Year 3, 260 five-year old trees at the end of Year 5 that are at least 7 feet tall, and the final vegetative success criteria will be 210 trees per acre with an average height of 10 feet at the end of Year 7. Height measurement success criteria do not apply to the understory trees or shrubs. Volunteer trees will be counted, identified to species, and included in the yearly monitoring reports, but will not be counted towards the success criteria of total planted stems. Additionally, no species may account for over 50 percent of total stems at a given plot. 1.4 Project Components The Site is comprised of two easement sections, separated by a newly built ford crossing along Little Poplar Creek. The stream reaches include Little Poplar Creek (LP1, LP2, LP4, LP5, and LP7) and two unnamed tributaries (LP3 and LP6), split into seven reaches by treatment type and location. The stream mitigation components are summarized below. Mitigation credits presented below are based upon the Approved Mitigation Plan. The Project is co-located with a DWR Riparian Buffer Bank. The width of the riparian enhancement areas where buffer credits are generated begin at the most landward limit of the top of bank and extend landward to a distance of at least 50 feet perpendicular to the streams and from 151 – 200 feet. The buffer from 50 – 150 feet is used to generate credit using the non-standard buffer credit calculation. Therefore, there is no overlap of buffer crediting areas and stream crediting areas. Uzzle 4 Year 4 Monitoring Report Stream Mitigation Site October 2022 Mitigation Plan Credits Pre-Design Mitigation StationingMitigation Base ReachConstruction Length Type (Design) Ratio SMUs Length (LF) (LF) LP1 Restoration 1+24 to 07+53 766 629 1: 1 629 LP2 Enhancement II 07+53 to 23+72 1,619 1,619 1 : 2.5 648 LP3 Enhancement II 0+50 to 1+92 142 142 1 : 2.5 57 LP4 Enhancement II 23+72 to 29+31 559 559 1 : 2.5 223 LP5 Enhancement II 29+31 to 36+45 714 714 1 : 2.5 286 LP5 Enhancement II 37+06 to 52+50 1,544 1,544 1 : 2.5 618 LP6 Enhancement II 0+22 to 4+00 378 378 1 : 2.5 151 LP7 Enhancement II 52+50 to 55+62 312 312 1 : 2.5 125 Totals 6,034 5,897 2,736 Credit Loss in Required Buffer -150 Credit Gain for Additional Buffer 289 Total Adjusted SMUs 2,876 *SMUs are adjusted in accordance with Section XI(C)- “Procedures to Calculate Credits for Non-standard Buffer Widths”, published in the October 2016 Wilmington District Stream and Wetland Compensatory Mitigation Update. A detailed description of the methodology and calculations is described in the Mitigation Plan. 1.5 Stream Design/Approach Stream restoration and enhancement efforts along the tributaries at the Uzzle Stream Mitigation Site were accomplished through analyses of geomorphic conditions and watershed characteristics. The design approach applied a combination of analytical and reference reach-based design methods that meet objectives commensurate with both ecological and geomorphic improvements. For Reach LP1, natural design concepts were applied and verified through rigorous engineering analyses and modeling. The objective of this approach is to build a geomorphically stable channel that provides habitat improvements and ties into the existing landscape. The Uzzle Stream Mitigation Site has been broken into the following reaches: Reach LP1 (Priority I Restoration) Reach beginning downstream of US HWY 70 at the northern project limits flowing south to Reach LP2. Wooded active pasture was located adjacent to the reach. Priority I Restoration was performed along Reach LP1 to address channel degradation and bank erosion caused by cattle access and high energy storm flows from the upstream culvert. The design approach included meandering the channel within the natural valley, aligning the channel with the upstream culvert, backfilling the existing stream, reconnecting the channel to its floodplain, and excluding livestock from the stream. A minimum 50-foot buffer was established and planted with native riparian vegetation. Woody debris and grade control structures were installed along the bed to improve in-stream habitat and stability. The watershed that drains to the upper end of the project is approximately 1,124 acres, and land use is primarily agricultural. The drainage area at the downstream end of the reach is 1,174 acres. Uzzle 5 Year 4 Monitoring Report Stream Mitigation Site October 2022 Reaches LP2, LP3, LP4, LP5, LP6, and LP7 (Enhancement II) Treatment of these reaches included treatment of invasive vegetation, debris removal, pocketed areas of supplemental planting, and livestock exclusion. A minimum 50-foot buffer was established along the reach and was planted with native riparian vegetation where existing vegetation was non-native or limited density. The drainage area at the downstream end of the reaches is 1,312 acres. A rock ford crossing was constructed at the crossing in the middle of Reach LP5. Both Reaches LP5 and LP6 right bank have less than 50 feet buffers, but they run parallel to a 50 feet utility easement corridor that is fully vegetated maintained herbaceous cover with some foot paths. 1.6 Construction and As-Built Conditions Stream construction and planting was completed in May 2019. The Uzzle Mitigation Site was built to design plans and guidelines. Project credits are based on design centerline, but as-built stream lengths are shown on Table 1. The as-built survey was included in the Baseline Monitoring Report and includes a redlined version. 1.7 Year 4 Monitoring Performance (MY4) The Uzzle Year 3 Monitoring (MY4) activities were performed in February and September 2022. All Year 4 monitoring data is presented below and in the appendices. The Site is on track to meet vegetation and stream interim success criteria. Vegetation Monitoring of the four permanent vegetation plots was completed during September 2022. Vegetation data are in Appendix C, associated photos are in Appendix B, and plot locations are in Appendix B. MY4 monitoring data indicates that all plots are exceeding the interim success criteria of planted stems per acre. Planted stem densities ranged from 405 to 647 planted stems per acre with a mean of 516 planted stems per acre across the permanent plots. A total of 11 species were documented within the plots. Volunteer species were noted in three plots, with an average of 132 stems per acre. The average stem height in the vegetation plots was 7.3 feet. A few willows live stakes were added to Vegetation Plot 1 in the wet area in March 2020. Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. RES performed supplemental planting in 2021 of about 40 bareroot trees, the species included willow oak (Quercus phellos), water oak (Quercus nigra), overcup oak (Quercus lyrata), American sycamore (Platanus occidentalis), and river birch (Betula nigra). MY4 visual assessments of the easement boundary found no encroachments or evidence of cattle entry. A small repair was being performed in the utility easement adjacent to the project in mid-2020, however, there was no sign of excess sediment runoff or concentrated flow through the riparian area. Highway 70 expansion is currently occurring along the easement boundaries. RES is monitoring the easement on a regular basis to ensure that no encroachment or issues are impacting our easement as construction is occurring. A few small areas of re-sprouted Chinese privet observed in 2019 in the lower section of the easement were treated in early 2020 and again in May of 2021 and will continue as needed throughout the monitoring period. Stream Geomorphology Geomorphology data was not required for MY4. Monitoring results from MY3 are included in Appendix D.Summary tables and cross section plots from MY3 are in Appendix D and normal monitoring activities will resume in 2023 (MY5). Overall the baseline cross sections and profile on the restoration reach Uzzle 6 Year 4 Monitoring Report Stream Mitigation Site October 2022 relatively match the design. The cross sections on the Enhancement II reaches were included to monitor the changes in dimension post cattle exclusion and riparian planting. Last year’s conditions show that shear stress and velocities have been reduced for all restoration/enhancement reaches. All reaches were designed as very coarse sand bed channels and remain classified as very coarse sand bed channels post-construction. Visual assessment of the stream channel was performed to document signs of instability, such as eroding banks, structural instability, or excessive sedimentation. The channel is transporting sediment as designed and will continue to be monitored for aggradation and degradation. Cross Sections 1 and 2 showed signs of bank erosion along the right bank in MY3. Cross Section 2 also had a Bank Height Ratio of 1.3 in MY3. It appears that the initial channel erosion occurred between MY1 and MY2 but MY2 and MY3 is virtually unchanged. Visual assessment still appears that no bed incision has occurred while there appears to still have slight bank erosion. MY5 cross sections will tell us more about the channel. Photos of these areas can be found in Appendix B. RES believes this erosion was caused by a log sill directly upstream of Cross Section 1 that was angled slightly towards the point bar and by the low survival rate of the livestakes planted during construction. RES has not noted bank erosion elsewhere in the stream besides around Cross Sections 1 and 2 and believes this is a situational issue due to the angle of the log sill upstream. RES performed a supplemental livestake planting of Black Willow (Salix nigra) and Silky Dogwood (Cornus amomum) in March 2022 which included these two erosion areas. RES also corrected the angle of the of the log sill which photos can be shown in Appendix B. Continued planting of more shade adapted livestake species will be attempted in the future if necessary. These areas will be monitored closely and if conditions worsen in the following monitoring years RES will perform additional adaptive management as needed. Stream Hydrology The stage recorder on LP1 recorded seven bankfull events in MY4. The highest event was 0.86 feet above the top of bank and occurred in August 2022. This year marks the fourth year in which, there have been at least four bankfull events in four separate years of monitoring. The gauge location can be found on Figure 2, a photo is in Appendix B, and the hydrology data is in Appendix E. Wetland Hydrology Two groundwater wells monitor wetland hydrology in the existing wetland on site. Groundwater Well 1 recorded a 2% hydroperiod and Groundwater Well 2 recorded a 21% hydroperiod. Groundwater data is thth only shown from April 7 until September 20due to both wells being destroyed from an animal in early 2022. New wells have been installed to replace the destroyed ones; the wells were moved to a new location very close to their original locations. The original location of GW1 appeared to be a microtopographic high spot and very close to the stream channel and experiencing a shoulder effect. RES expects the hydroperiods to increase in future monitoring years as the site adjusts. However, this was a historically dry growing season and RES had limited amount of data due to the wells being destroyed. However, if well 1 continues to show low hydroperiods, RES will install an additional gauge in the area to see if this is just a localized issue or a problem with the well installation. Groundwater well locations can be found on Figure 2 and the data is in Appendix E. 2.0 Methods Stream monitoring was conducted using a Topcon GTS-312 Total Station. Three-dimensional coordinates associated with cross-section data were collected in the field (NAD83 State Plane feet FIPS 3200). ® Morphological data were collected at eight cross-sections. Survey data were imported into CAD, ArcGIS, ® and Microsoft Excel for data processing and analysis. The stage recorder includes an automatic pressure transducer flow gauge. The flow gauge was installed within the channel and will record water depth at an Uzzle 7 Year 4 Monitoring Report Stream Mitigation Site October 2022 hourly interval. A surveyed elevation was recorded at the bed and top of bank at the stage recorder elevation to detect bankfull events. Vegetation success is being monitored at four permanent monitoring plots. Vegetation plot monitoring follows the CVS-EEP Level 2 Protocol for Recording Vegetation, version 4.2 (Lee et al. 2008) and includes analysis of species composition and density of planted species. Data are processed using the CVS data entry tool. In the field, the four corners of each plot were permanently marked with PVC at the origin and metal conduit at the other corners. Photos of each plot are to be taken from the origin each monitoring year. Wetland hydrology is monitored to document maintenance of jurisdictional groundwater levels in the stream restoration area (as requested by NCIRT). This is accomplished with two automatic pressure transducer gauges (located in groundwater wells) that record daily groundwater levels. One automatic pressure transducer is installed above ground for use as a barometric reference. Gauges are downloaded quarterly and wetland hydroperiods are calculated during the growing season. Gauge installation followed current regulatory guidance. Visual observations of primary and secondary wetland hydrology indicators are also recorded during quarterly site visits. 3.0 References Environmental Laboratory. 1987. U.S. Army Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1. U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. Harman, W., R. Starr, M. Carter, K. Tweedy, M. Clemmons, K. Suggs, C. Miller. 2012. A Function- Based Framework for Stream Assessment and Restoration Projects. US Environmental Protection Agency, Office of Wetlands, Oceans, and Watersheds, Washington, DC EPA 843-K-12-006. Lee Michael T., Peet Robert K., Roberts Steven D., and Wentworth Thomas R., 2008. CVS-EEP Protocol for Recording Vegetation Level. Version 4.2 Peet, R.K., Wentworth, T.S., and White, P.S. (1998), A flexible, multipurpose method for recording vegetation composition and structure. Castanea 63:262-274 Resource Environmental Solutions (2018). Uzzle Stream Mitigation Site Final Mitigation Plan. Rosgen, D. (1996), Applied River Morphology, 2nd edition, Wildland Hydrology, Pagosa Springs, CO. Schafale, M.P. 2012. Classification of the Natural Communities of North Carolina, Third Approximation. North Carolina Natural Heritage Program, Division of Parks and Recreation, NCDENR, Raleigh, NC. US Army Corps of Engineers (USACE), 2003. April 2003 NC Stream Mitigation Guidelines. USACE. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Atlantic and Gulf Coastal Plain Region (Version 2.0), ed. J. S. Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-10-20. Vicksburg, MS: U.S. Army Engineer Research and Development Center. USACE. 2016. Wilmington District Stream and Wetland Compensatory Mitigation Update. Uzzle 8 Year 4 Monitoring Report Stream Mitigation Site October 2022 Table 1. Uzzle - Mitigation Assets and Components Project Credits Table 2. Project Activity and Reporting History Uzzle Mitigation Site Elapsed Time Since grading complete:3 years 5 months Elapsed Time Since planting complete:3 years 5 months 1 Number of reporting Years: 4 Data Collection Completion or Activity or DeliverableCompleteDelivery Mitigation PlanNADec-18 Final Design – Construction PlansNAApr-19 Stream ConstructionNAMay-19 Site PlantingNAMay-19 As-built (Year 0 Monitoring – baseline)May-19Jul-19 Year 1 MonitoringDec-19Dec-19 Supplemental LivestakingNAMar-20 Invasive TreatmentNAMay-20 XS: Sep-20 Year 2 MonitoringOct-20 VP: Sep-20 Invasive TreatmentNAMay-21 XS: June-21 Year 3 MonitoringSep-21 VP: Sep-21 Oct-2 Year 4 MonitoringVP: Sep-22 Year 5 Monitoring Year 6 Monitoring Year 7 Monitoring 1 = The number of reports or data points produced excluding the baseline Table 3. Project Contacts Table Uzzle Mitigation Site WK Dickson and Co., Inc. / 720 Corporate Center Dr., Raleigh, Designer NC 27607 3 years 5 months Primary project design POC3 years 5 months 4 Construction Contractor Construction contractor POCKory Strader (336) 362-0289 Matrix East, PLLC / 906 N. Queen St., Suite A, Kinston, NC Survey Contractor 28501 Survey contractor POCChris Paderick, PLS H&J Forestry Planting Contractor Planting contractor POCMatt Hitch KBS Earthwork Inc. / 5616 Coble Church Rd., Julian, NC Seeding Contractor 27283 Contractor point of contactKory Strader (336) 362-0289 Green Resource (336) 855-6363 Seed Mix Sources Arborgen (845) 851-4129 Nursery Stock Suppliers VP: Sep-22 RES / 3600 Glenwood Ave, Suite 100, Raleigh, NC 27612 Monitoring Performers Stream Monitoring POCRyan Medric (919) 741-6268 Vegetation Monitoring POCRyan Medric (919) 741-6268 Table 4. Project Background Information Project NameUzzle CountyJohnston Project Area (acres) 27.3 Project Coordinates (latitude and longitude)Latitude: 35.4754 N Longitude: -78.3117 W Planted Acreage (Acres of Woody Stems Planted)3.6 Project Watershed Summary Information Physiographic ProvinceCoastal Plain River BasinNeuse USGS Hydrologic Unit 14-digit03020201100040 USGS Hydrologic Unit 8-digit03020201 DWR Sub-basin03-04-02 Project Drainage Area (Acres and Square Miles)1,312 ac (2.05 sqmi) Project Drainage Area Percentage of Impervious Area 6% CGIA Land Use ClassificationForest (49%) Agriculture (28%) Residential/Urban (16%) Reach Summary Information Parameters LP1LP2LP3LP4LP5LP6LP7 Length of reach (linear feet) 62916191425592258378312 Valley confinement (Confined, moderately confined, unconfined) --------------------- Drainage area (Acres and Square Miles) 112411742312021296421312 Perennial, Intermittent, Ephemeral PPIPPIP NCDWR Water Quality Classification --------------------- Stream Classification (existing)E5E5G5C5E5G5C5 E5------------------ Stream Classification (proposed) --------------------- Evolutionary trend (Simon) FEMA classification AEAEAEAEAEAEAE Regulatory Considerations Supporting ParametersApplicable?Resolved? Docs? SAW-2016- Water of the United States - Section 404YesYes 01973 DWR # 16- Water of the United States - Section 401YesYes 0981 USFWS Endangered Species ActYesYes (Corr. Letter) SHPO (Corr. Historic Preservation ActYesYes Letter) Coastal Zone Management Act (CZMA or CAMA)NoN/A N/A FEMA Floodplain ComplianceYesYes No-Rise Cert Essential Fisheries HabitatNoN/A N/A Legend Conservation Easement Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, © OpenStreetMap contributors, and the GIS User Community Date: 6/25/2019 Figure 1 - Site Location Map Drawn by: RTM Uzzle Stream Mitigation Site © Checked by: BPB 05001,000 Johnston County, North Carolina 1 inch = 1,000 feet Feet Invasive Species !R !> !> Document Path: R:\\Resgis\\entgis\\Projects\\100141_Uzzle\\MXD\\Monitoring\\MY4\\USACE Figures\\Uzzle MY3 CCPV.mxd Uzzle MY4Vegetation Monitoring Plot Photos Vegetation Plot 1 (09/20/2022) Vegetation Plot 2 (09/20/2022) Vegetation Plot 3 (09/20/2022) Vegetation Plot 4 (09/20/2022) Uzzle MY4 Monitoring Device Photos Wetland Gauge 1(09/20/2022) Wetland Gauge 2(09/20/2022) Stage Recorder & Ambient (09/20/2022) Uzzle MY4General Monitoring Photos Stream near XS 1 (09/20/2022) Log sill upstream of XS 1 (09/20/2022) Construction upstream of project (09/20/2022) Uzzle MY4 Stream and Vegetation Problem Areas Right bank erosion near XS 1 & 2 (9/1/2021)Livestakes on right bank erosion (03/08/2022) Livestakes right bank erosion (09/20/2022) Broken 1 (02/09/2022) Table 2. Planted Species Summary CommonNameScientificNameTotalStemsPlanted WaterOak Quercusnigra 1,800 Swamp Chestnut Oak Quercus michauxii 1,100 Sycamore Platanusoccidentalis 900 Bald Cypress Taxodium distichum 800 WillowOak Quercusphellos 700 Blackgum Nyssa sylvatica 700 Green Ash Fraxinus pennsylvanica 600 Silky Dogwood Cornus amomum 600 River Birch Betula nigra 500 OvercupOak Quercus lyrata 400 Tuliptree Liriodendron tulipifera 400 Flowering Dogwood Cornus florida 400 Buttonbush Cephalanthus occidentalis 300 Persimmon Diospyros virginiana 300 American Hazelnut Corylus americana 300 Total 9,800 Table 3. Vegetation Plot Mitigation Success Summary Wetland/Stream Vegetation Totals (per acre) Success Avergae Planted Volunteer Total Plot #Criteria Stem Height Stems/AcreStems/AcreStems/Acre Met?(ft) 1 405405809Yes4.8 2 5260526Yes10.4 3 48681567Yes5.7 4 64740688Yes7.7 Project Avg516132647Yes7.3 Table 4. Stem Count Total and Planted by Plot Species Elevation (ft) Elevation (ft) Elevation (ft) Elevation (ft) Elevation (ft) Elevation (ft) Elevation (ft) Elevation (ft) Table 10. 2022 Rainfall Summary Normal Limits Clayton Station MonthAverage Precipitation 30 Percent70 Percent January3.922.834.633.15 February3.352.284.000.84 March4.193.174.881.46 April3.702.464.432.41 May 3.642.454.354.10 June4.402.545.361.00 July 5.774.576.635.60 August5.703.856.813.35 September5.963.737.194.15 October3.612.334.34--- November3.662.064.46--- December4.002.744.77--- Total51.9035.0161.8526.06 Above Normal LimitsBelow Normal Limits Table 11. Documentation of Geomorphically Significant Flow Events Number of Bankfull Maximum Bankfull Height Date of Maximum Bankfull Year Events(ft)Event Stage Recorder LP1 MY1 201951.217/23/2019 MY2 202061.709/1/2020 MY3 202161.367/27/2021 MY4 202270.868/12/2022 Table 12. 2022 Max Hydroperiod (Growing Season 17-Mar through 23-Nov, 251 days) ConsecutiveCumulative Well IDOccurrences Hydroperiod Hydroperiod DaysDays (%)(%) GW1 52241010 GW2 542168274 Table 13. Summary of Groundwater Monitoring Results Uzzle Hydroperiod (%) Well ID Year 1 (2019)Year 2 (2020) Year 3 (2021)Year 4 (2022)Year 5 (2023)Year 6 (2024)Year 7 (2025) GW1 1112 GW2 23231921 Precipitation (inches) Groundwater Elevation (inches) Precipitation (inches) Groundwater Elevation (inches)