Loading...
HomeMy WebLinkAbout20160980 Ver 1_Year 3 Monitoring Report_20210930ID#* 20160980 Version* 1 Select Reviewer:* Erin Davis Initial Review Completed Date 09/30/2021 Mitigation Project Submittal - 9/30/2021 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* V Stream Pr Wetlands r- Buffer r` Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Jamey McEachran Project Information .................................................................................................................................................................. ID#:* 20160980 Existing IDY Project Type: r DMS r Mitigation Bank Project Name: Meadow Spring County: Johnston Document Information Email Address:* jmceachran@res.us Version: *1 Existing Version Mitigation Document Type:* Mitigation Monitoring Report File Upload: Meadow Spring Year 3 Monitoring Report.pdf 20.01 MB Rease upload only one RDFcf the conplete file that needs to be subnitted... Signature Print Name:* Ryan Medric Signature:* MEADOW SPRING MITIGATION SITE JOHNSTON COUNTY, NORTH CAROLINA SAW-2016-01989 I NEU-CONSTREAMAND WETLAND UMBI YEAR 3 MONITORING REPORT Provided by: fires Bank Sponsor: EBX-Neuse I, LLC, An entity of Resource Environmental Solutions 3600 Glenwood Avenue, Suite 100 Raleigh, NC 27612 919-209-1055 September 2021 Table of Contents 1.0 Project Summary..................................................................................................................................... 1 1.1 Project Location and Description.............................................................................................. 1 1.2 Project Goals and Objectives.................................................................................................... 2 1.3 Pro_ject Success Criteria............................................................................................................. 2 StreamSuccess Criteria................................................................................................................... 3 WetlandSuccess Criteria................................................................................................................. 3 VegetationSuccess Criteria............................................................................................................. 3 1.4 Project Components.................................................................................................................. 4 1.5 Design/Approach.......................................................................................................................5 Stream.............................................................................................................................................. 5 Wetland............................................................................................................................................ 6 1.6 Construction and As -Built Conditions...................................................................................... 7 1.7 Year 3 Monitoring Performance(MY3).................................................................................... 7 Vegetation........................................................................................................................................ 7 StreamGeomorphology................................................................................................................... 7 StreamHydrology............................................................................................................................ 8 WetlandHydrology.......................................................................................................................... 8 2.0 Methods.................................................................................................................................................. 8 3.0 References............................................................................................................................................... 9 Appendix A: Background Tables Table 1: Project Mitigation Components Table 2: Project Activity and Reporting History Table 3: Project Contacts Table Table 4: Project Background Information Table Figure 1: Site Location Map Appendix B: Visual Assessment Data Figure 2: Current Conditions Plan View Vegetation Plot Photos 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 Cross -Section Overlay Plots Table 8. Baseline Stream Data Summary Table 9. Cross Section Morphology Data Table ADUendix E: Hvdrolo2v Data Table 10. 2021 Rainfall Data Table 11. Documentation of Geomorphically Significant Flow Events Table 12. 2021 Max Hydroperiod Table 13. Summary of Groundwater Monitoring Results MY3 Groundwater Hydrographs Meadow Spring Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 1.0 Proiect Summary 1.1 Project Location and Description The Meadow Spring Mitigation Site (Site) is located within a watershed dominated by agricultural land use in Johnston County, North Carolina, approximately three miles north of Smithfield. The project streams and wetlands were significantly impacted by channelization, impoundment, and cattle access. The project involves the restoration and protection of streams in the Neuse River watershed and the restoration, enhancement, and preservation of adjacent riparian wetlands. The purpose of this mitigation site is to restore, enhance and preserve a stream/wetland complex located within the Neuse River Basin. The Site was designed in concurrence with the Meadow Spring Riparian Buffer and Nutrient Offset Mitigation Bank. The Site lies within USGS Hydrologic Unit Code (HUC) 03020201. The total easement area is 60.93 acres. The wooded areas along the easement corridor designated for restoration activities are classified as mixed hardwoods. Invasive species were present throughout the wooded areas. Restored channels were both laterally and vertically unstable, impacted by cattle, have disturbed riparian buffers, and did not fully support aquatic life. Previous stream conditions along the restoration reaches exhibited habitat degradation because of impacts from livestock and impoundment to promote agricultural activities. The Meadow Spring Site includes stream Priority I/II Restoration, Enhancement Levels I II and III, Preservation and wetland re -habilitation, re-establishment, enhancement and preservation. Priority I Restoration reaches incorporate the construction of a single -thread meandering channel, with parameters based on data taken from the reference site described above, published empirical relationships, NC Coastal Plain Regional Curves, and hydrologic and hydraulic analyses. Wetland re-establishment occurred adjacent to Priority I Restoration reaches. The restoration approach was to reconnect the floodplain wetlands to the stream, fill existing ditches, rough the floodplain surface, and plant native tree and shrub species commonly found in small stream swamp ecosystems. The wetland enhancement treatment included livestock exclusion, improving hydrology via pond removal and ditch plugging, and planting native tree and shrub species. The Site will be monitored on a regular basis and a physical inspection of the Site will be conducted at a minimum of twice per year throughout the seven-year post -construction monitoring period, or until performance standards are met. These site inspections will identify site components and features that require routine maintenance. The measure of stream restoration success will be documented by bankfull flows and no change in stream channel classification. Sand bed channels are dynamic and minor adjustments to dimension and profile are expected. The measure of vegetative success for the Site will be the survival of at least 210 seven-year old planted trees per acre with an average height of 10 feet at the end of year seven of the monitoring period. 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. Meadow Spring 1 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 1.2 Project Goals and Objectives The 2010 Neuse RBRP identified several restoration needs for the entire Neuse River Basin, as well as for I UC 03020201, specifically. The Site is in HUC 03020201100050 (Meuse River), a Targeted Local Watershed (TLW) that exhibits both the need and opportunity for wetland, stream, and riparian buffer restoration. The watershed includes 52 square miles of area, with 31 percent of the 106 stream miles lacking wooded buffers. Thirty-seven percent of the watershed is used for agricultural purposes with 13 animal operations occurring in the watershed. Impervious surface near the town of Smithfield is increasing and set to surpass the critical seven percent benchmark (NCDMS 2010). The Site was identified as a stream and buffer restoration opportunity to improve water quality, habitat, and hydrology within the Neuse River Basin. This project is intended to provide Stream Mitigation Units to be applied as compensatory mitigation for unavoidable authorized impacts to waters of the US under Section 404 of the Clean Water Act (33 U.S.C. 1344) and support the overall goal of "no net loss" of aquatic resources in the United States. The Site is located within the downstream end of I UC 03020201 and includes an unnamed tributary that directly discharges into the Neuse River. Many of the project design goals and objectives, including restoration of riparian buffers to filter runoff from agricultural operations and improve terrestrial habitat, and construction of in -stream structures to improve habitat diversity, will address the degraded water quality and nutrient input from farming that were identified as major watershed stressors in the 2010 Neuse RBRP. The project goals will be addressed through the following project objectives: • Design and construct stable stream channels with appropriate pattern, dimension, and profile based on reference reach conditions. • Exclude livestock permanently from streams and their associated buffers as well as surrounding wetlands. • Reduce bank height ratios to less than 1.2 and increase entrenchment ratio to greater than 2.2 in accordance to the Wilmington District Stream and Wetland Compensatory Mitigation Update Guidance. • Increase forested riparian buffers to at least fifty feet on both sides of the channel along the project reaches with an appropriate riparian plant community. • Re-establish, rehabilitate, and enhance riparian wetlands by raising stream bed elevations, plugging surface ditches, and planting native wetland plant species in order to maintain appropriate soil series saturation/hydroperiod thresholds during the growing season. • Preserve and enhance of hydrology in existing riparian wetland seeps. • Establish a permanent conservation easement on the Site. • Remove invasive species from the riparian buffer and wetland areas to support the colonization and survival of native riparian buffer species. 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. Meadow Spring 2 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 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 down -cutting or erosion), or are minor changes that represent an increase in stability (for example settling, vegetative changes, deposition along the banks, or decrease in width/depth ratio). Cross sections shall be classified using the Rosgen stream classification method, and all monitored cross -sections should fall within the quantitative parameters defined for channels of the design stream type. Bank height ratio shall not exceed 1.2, and the entrenchment ratio shall be no less than 2.2 within restored reaches. 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. Wetland Success Criteria The Natural Resources Conservation Service (MRCS) has a current WETS table for Johnston County upon which to base a normal rainfall amount and average growing season. The closest comparable data station was determined to be the WETS station for Smithfield, NC. The growing season for Johnston County is 233 days long, extending from March 18 to November 6, and is based on a daily minimum temperature greater than 28 degrees Fahrenheit occurring in five of ten years. Based upon field observation across the site, the NRCS mapping units show a good correlation to actual site conditions in areas of the site. Mitigation guidance for soils in the Coastal Plain suggests a hydroperiod for the Bibb soil of 12-16 percent of the growing season. The hydrology success criterion for the Site is to restore the water table so that it will remain continuously within 12 inches of the soil surface for at least 12 percent of the growing season (approximately 27 days) at each groundwater gauge location. Based on the extensive management history of the Site and soil compaction, RES expects a slighty reduced hydroperiod in the monitoring years 1 and 2. Vegetation Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the site follow IRT Guidance. Vegetation monitoring plots are a minimum of 0.02 acres in size and cover a minimum of two percent of the planted area. Vegetation monitoring shall occur annually between July 15 and leaf drop. The interim measures of vegetative success for the site are the survival of at least 320 planted three-year old trees per acre at the end of Year 3, 260 five-year old trees that are at least 7 feet tall at the end of Year 5, and the final vegetative success criteria is 210 trees per acre with an average height of ten feet at the end of Year 7. Volunteer trees are to be counted, identified to species, and included in the yearly monitoring reports, but do not count towards the success criteria of total planted stems. Meadow Spring 3 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 1.4 Project Components The project area is comprised of an easement area along an unnamed tributary to the Neuse River. The easement is separated by an existing power easement and three agricultural crossings. The project is divided into northern and southern portions by the existing power easement. The northern portion of the project includes Reaches S1, S2, S5, S6A and S613. The southern portion of the project includes Reaches S7, S9, S11, S12 and S13. The stream and wetland mitigation components are summarized below. Mitigation Plan Stream Credits Stream Mitigation Reach Mitigation Type Stationing Existing Length (LF) Design Length (LF) Mitigation Ratio Base SMUs S 1 Enhancement II 3+50 to 6+00 250 250 2.5:1 100 S2 Enhancement I 6+00 to 11+00 500 500 1.5:1 333 S5 P1 / P2 Restoration 0+76 to 3+07 215 231 1:1 231 S6A P1 Restoration 11+00 to 24+50 1,220 1,350 1:1 1,350 S613 P1 Restoration 24+50 to 36+26 1,150 1,176 1:1 1,176 S613 Enhancement I 36+26 to 37+93 165 167 1.5:1 111 S7 Enhancement I 38+80 to 48+70 1,035 990 1.5:1 660 S7 Enhancement I 49+40 to 53+80 452 440 1.5:1 293 S9 Enhancement III 53+80 to 60+55 665 675 7.5:1 90 S11 P1 Restoration 60+55 to 71+00 906 1,045 1:1 1,045 S12 Preservation 71+00 to 74+80 380 380 10:1 38 S13 Preservation 9+69 to 14+23 454 454 10:1 45 Total 1 7,392 1 7,658 5,473 Non -Standard Buffer Width Adjustment* 50 Grand Total Adjusted SMUs 5,523 *The non-standard buffer width adjustment was only performed for reaches S7, S9, S12, S13 Mitigation Plan Wetland Credits Wetland Mitigation Wetland Mitigation Type Total Acres Mitigation Ratio WMUs WB Rehabilitation 0.95 1.5:1 0.63 WD Preservation 0.03 No Credit No Credit WE Preservation 0.09 No Credit No Credit WF-A Preservation 2.00 No Credit No Credit WF-B Enhancement 2.02 3:1 0.67 WG-A Enhancement 3.68 3:1 1.23 WG-B Enhancement 18.03 5:1 3.61 WH Re-establishment 6.84 1:1 6.84 WI Re-establishment 2.87 2:1 1.44 Total 36.51 14.41 Meadow Spring 4 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 1. S Design/Approach Stream The Meadow Spring Site includes Priority I/Priority II Restoration, Enhancement Level I, Enhancement Level II, Enhancement Level III. Priority I Restoration reaches incorporate the design of a single -thread meandering channel, with parameters based on data taken from the reference site described above, published empirical relationships, NC Coastal Plain Regional Curves, and hydrologic and hydraulic analyses. As a result of the restoration of planform and dimension, frequent overbank flows and a restored riparian buffer will provide the appropriate hydrology and sediment transport throughout this coastal plain watershed. All non -vegetated areas within the easement were planted with native vegetation and any areas of invasive species were removed and/or treated. • Reach S1 (STA 03+50 to STA 06+00) — Reach beginning at northwestern limits of the project flowing southeast to Reach S2 totaling 250 linear feet of Enhancement Level II. Row crops and active pasture were located adjacent to the reach. Enhancement involved revegetating the buffer with native vegetation. • Reach S2 (STA 06+00 to STA 11+00) — Reach begins at the downstream end of Reach S1 and flows southeast through what was active pasture to Reach S6A. Reach S2 totals 500 linear feet of Enhancement Level L Active pasture and row crops used to surround this reach. Enhancement involved revegetating the buffer and stream stabilization of localized erosion with the installation of log cross vanes and sills. • Reach S5 (STA 00+76 to STA 03+07) — Reach begins north of Reach S6A and flows south through active pasture to a confluence with Reach S6A totaling 231 linear feet of Priority I and II Restoration. Active pasture and maintained lawn used to surround this reach. Restoration included meandering the channel within the valley, backfilling the old stream, reconnecting to its floodplain, and restoring hydrology to drained wetlands. • Reach S6A (STA 11+00 to STA 24+50) — Reach begins at the downstream end of Reach S2 and flows east through what was active pasture, flows adjacent to a farm pond and ends at a confluence with Reach S5. Reach S6A totals 1,350 linear feet of Priority I Restoration. Restoration included meandering channel though the natural valley, backfilling the old channel, reconnecting to its floodplain, removing the old dam, and restoring hydrology to drained wetlands. • Reach S6B — Section 1 (STA 24+50 to STA 36+26) — Reach begins at the confluence of Reach S5 and S6A flowing east to the second section of Reach S613. Reach S613-Section I totals 1,176 linear feet of Priority I Restoration. Restoration included meandering the channel within the valley, backfilling the old stream, reconnecting to its floodplain, and restoring hydrology to drained wetlands. • Reach S6B — Section 2 (STA 36+26 to STA 37+93) — Reach begins at the downstream end of Reach 613-Section I and flows east to the Duke Energy right-of-way. Reach S613-Section 2 totals 167 linear feet of Enhancement Level I. Enhancement included stabilization of localized erosion by installing log sills, increasing radius of curvature, regrading point bars, removal of invasive vegetation, and revegetating the buffer. • Reach S7 (STA 38+80 to STA 53+80) — Reach beginning downstream of the Duke Energy right- of-way and flows south to Reach S9 totaling 1,430 linear feet of Enhancement Level L A 70-linear foot easement break is located in this reach to accommodate a proposed farm crossing. Hardwood forests and active pasture are located adjacent to the reach. Enhancement included stabilization of localized erosion by installing log vanes, log sills, brush toes, and regrading point bars. As well as removing dense areas of invasive vegetation and supplementing planting in its place. Meadow Spring 5 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 • Reach S9 (STA 53+80 to STA 60+55) — Reach beginning at the downstream end of Reach S7 and flowing south to Reach SI I totaling 675 linear feet of Enhancement Level III. Hardwood forests and active hog lagoons are located adjacent to the reach. Enhancement included invasive treatment and supplemental planting. • Reach S11 (STA 60+55 to STA 71+00) — Reach beginning at the downstream end of Reach S9 and flows southeast to Reach S12 totaling 1,045 linear feet of Priority I Restoration. Hardwood forests and grassed fields were located adjacent to the reach. Restoration included meandering the channel within the valley, backfilling the old channel, reconnecting to its floodplain, and improving hydrology to drained wetlands. • Reach S12 (STA 71+00 to STA 74+80) —Reach beginning at the downstream end of Reach S11 and flows southeast toward the Neuse River floodway totaling 380 linear feet of Preservation. Hardwood forests are located adjacent to the reach. Preservation included invasive treatment and buffer/stream protection. • Reach S13 (STA 9+69 to STA 14+23) - Reach beginning downstream of the large wetland slough along the Neuse River floodplain totaling 454 linear feet of Preservation. Preservation included invasive treatment and buffer/stream protection. Wetland The Meadow Spring Site offers a total ecosystem restoration opportunity. As such, the wetland restoration and enhancement are closely tied to the stream restoration. The Site provides 14.41 WMUs through a combination of wetland re-establishment, rehabilitation, and enhancement. Because of the sites observed soil characteristics and landscape position, a combination of wetland re- establishment, rehabilitation, and enhancement was incorporated. In wetlands WH, the non jurisdictional area, hydrologic restoration, at a credit ratio of 1:1, was accomplished by plugging the existing incised channel to restrict drainage and allowing a natural hydroperiod to return. In addition, re -constructing a stream channel at a higher bed elevation in the natural valley, backfilling to create shallow depressions within the old channel, and the removal of spoil from pond excavation along the floodplains aids in the restoration of a natural floodplain surface relative to the surrounding landscape. Due to compaction and long-term agricultural use, a shallow ripping of the surface along the contour to a depth of eight to ten inches creates adequate porosity for infiltration and storage, provides microtopographic relief, and should improve vegetative survival and growth. As part of the wetland re-establishment in wetland WI, at a credit ratio of 2:1, the pond was removed. The construction of a farm pond has altered surface drainage and placed spoil across the floodplain. The stream was reconnected to the floodplain and in addition to out of bank events the large perennial spring serves as a source for hydrology for the re-established wetlands. Retention and storage within the floodplain has returned to a natural state having an increased hydroperiod. In wetland WF-B, a credit ratio of 3:1 was implemented for wetland enhancement. This wetland has been impacted by channel incision and active management for agriculture in the past. The wetland mitigation treatment consisted of reconnecting the stream to the floodplain and replanting disturbed areas. These activities result in a much healthier, better functioning wetland. In wetland WG, the large disturbed Neuse River floodplain area, a credit ratio of 3:1 was implemented for wetland enhancement in the areas that are planted (WG-A) and an enhancement credit ratio of 5:1 in the areas not planted (WG-B). This wetland has been actively managed for agriculture and waterfowl through drainage manipulations and tree clearing. The wetland mitigation treatment was primarily re -planting the disturbed areas, plugging the main ditch, and removing existing berms within the wetland. These activities result in a large floodplain slough with a diversity of microhabitats. Meadow Spring 6 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 1.6 Construction and As Built Conditions Stream construction and planting was completed in June 2019. The Meadow Spring Mitigation Site was built to design plans and guidelines. A redline version of the as -built survey is included with the sealed plat in the As -Built Baseline Monitoring Report. Project credits are based on design centerline, but as -built stream lengths are shown on Table 1. 1.7 Year 3 Monitoring Performance (MY3) The Meadow Spring Year 3 Monitoring activities were performed in June and September 2021. All MY3 data is present below and in the appendices. The Site is on track to meeting vegetation, stream, and wetland interim success criteria. Vegetation _ Monitoring of the 18 permanent vegetation plots and three random vegetation plots was completed during September 2021. Vegetation data are in Appendix C, associated photos are in Appendix B, and plot locations are in Appendix B. MY2 monitoring data indicates that 20 of the 21 plots are exceeding the interim success criteria of 320 planted stems per acre. Planted stem densities ranged from 283 to 850 planted stems per acre with a mean of 674 planted stems per acre across all the plots. Vegetation Plot 18 did not meet the success criteria with 283 stems per acre. A total of 22 species were documented within the plots. The average height in the plots was 5.1 feet. Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. An area of Chinese privet was treated in Wetland G in June 2021. A couple areas of Chinese privet remain along S6 and S9 (Appendix B). These areas will be treated in 2022 and treatments will continue as needed throughout the monitoring period. Visual assessments of the easement boundary found no encroachments or evidence of cattle entry. RES performed supplemental plantings in January 2021. The supplemental planting included planting 1,100 bareroot trees in areas where vegetation plots were less than 600 stems per acre in MY2. RES supplemental planted with six-foot willow poles in Wetland G. This area experiences flooding up to seven feet deep, so RES planted species tolerant to flooded conditions. Vegetation Plot 18, in this area, did not meet success in MY3, however RES placed Random Vegetation Plot 3 directly adjacent to VP 18 and it exceeded success criteria. Stream Geomorphology Geomorphology data for MY3 was collected during June 2021. Summary tables and cross section plots are in Appendix D. Overall, the MY3 cross sections relatively match the as -built conditions. Minor adjustments are expected during the first few years after construction. In WI, Cross Sections 2, 4, 7, and 18 experienced about one foot of change in dimension. These areas did not change much in MY2 and MY3. Additionally, erosion is seen around the log sill at Cross Section 16. Bank height ratios remain less than 1.2 and entrenchment ratios greater than 2.2 on restoration reaches. 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. The problem areas along the bottom of S2 and throughout S6A were repaired in My3. They were a series of eroded banks on meander bends and Meadow Spring 7 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 around structures. These banks were hand graded back, repaired with brush mattresses, and livestakes. RES plans to replace the eroded log sill on Cross Section 16. Stream Hydrology Two stage recorders were installed in June 2019 to document bankfull events. One stage recorder on Reach S613 and one stage recorder on Reach 511. The stage recorder on Reach S613 recorded one bankfull event in MY3 with the highest being 0.09 feet above top of bank. The stage recorder on Reach S11 recorded 5 bankfull events with the highest being 8.48 feet above top of bank. Reach S 11 experiences extreme flooding from backwater of the Neuse River. Stage recorder locations can be found on Figure 2 and associated data is in Appendix E. Wetland Hydrology MY3 data showed seven of the 11 groundwater wells met the 12 percent hydroperiod success criteria. Of the four that did not meet the 12 percent hydroperiod, only Groundwater Well 7 was less than five percent hydroperiod. Groundwater Well 7 had less than five percent hydroperiods three years in a row. RES plans to add an additional plug to the adjacent ditch to discourage drainage in this area. Hydroperiods ranged from seven to 52 percent with the reference well documenting a one percent hydroperiod. RES expects the hydroperiods to continue to increase in subsequent years. 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 24 cross -sections. Survey data were imported into CAD, ArcGIS®, and Microsoft Excel® for data processing and analysis. The stage recorders include an automatic pressure transducer set in PVC piping in the channel. The elevation of the bed and top of bank at each stage recorder location was recorded to be able to document presence of water in the channel and out of bank events. Visual observations (i.e. wrack or debris lines) will also be used to document out of bank events. Vegetation success is being monitored at 18 permanent monitoring plots and three random 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. The random plots are to be collected in locations where there are no permanent vegetation plots. Random plots will most likely be collected in the form of 100 square meter belt transects with variable dimensions. Tree species and height will be recorded for each planted stem and the transects will be mapped and new locations will be monitored in subsequent years. Wetland hydrology is monitored to document success in wetland restoration and enhancement areas where hydrology was affected. This is accomplished with 11 automatic pressure transducer gauges (located in groundwater wells) that record daily groundwater levels. Ten have been installed within the wetland crediting area and one within reference wetland areas. 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. Meadow Spring 8 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 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 North Carolina Division of Mitigation Services (NCDMS). "Neuse River Basin Restoration Priorities 2010." (Amended 2018). 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). Meadow Spring Stream and Wetland 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. Meadow Spring 9 Year 3 Monitoring Report Stream and Wetland Mitigation Site September 2021 Appendix A Background Tables C to C .i Q H 3 0 m w a a a o a o a _ a o > > d o as as as E E m m 61 0 0 o m> E Z a a a a a Y E E E a .� a o 0 0 0 0 o m m W W W o z CO 0 > m > m > m > > > +� > m m m d as w as w as w > N E .> o a'� z z z m E z o o o 0 o Z o 0 Y z z E aE m - o 0 0 n .o o o o .� O () '> Z — N tr tr� C7 C7 C7 0 > > 0 0 0 U 0 o 0 o a 0 • • • a3 a3 a3 '� o '� o LL a3 a3 a3 '0 '0 '0 a3 E E E Q Y 6I LL - > >o __= m= a a a o o a LL LL LL O O O LL LL — � -W a O o a, a a `o 0 N m 00 O M 00 � � W r W L0 0 M - O m O N N O co CO M O V co 0 co a) O U N LO N co O O M O O O N M (O N Q O Q LL .�. O M pow O O 0 O M O M O (h C,O Lo O V M CO N N O N co V ID)a) )) a: MM N M N cLo co O CC O M CO C) O Z O Z o O O O O O O O o 0 0 0 0 0 0" 0 0 jp 0000000 O O O O O O O O O O O O O 0 p Ln a) U M co O N O� O 0 0 O O O Ln 0 0 0. O (� (� O O O O O Q Q N ds Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q > Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z 0 N O O O 0 0 o o o 0 N a) a) E E m m m m E a) a) a) a) a) a) 0 o U U o 0 o 0 0 0 o Z a) Z a) - Z o a) 0 Z 0 U U C U C Q J to N to N a) to L N to N to N a) L fo C C C d d d d d W C W C W N W W W W W w ° o E E E E E E E E E E E E 0 0 M O O 0 0 O O OCO mcVo 0p) O M M (Od)V I�n Op L() O O O O O O N O N O co O (O co N O U lQEL 0 0 0 a) a3 y0 O O Ln N 00 Ln M N Ln (O O V Q Q Q Q Q Q Q Q Q to O a) 0 N O Ln N N - O O 0 V CO 0 O m CO M 0 V Z Z Z Z Z Z Z Z Z LL Ll Qo C E 0 CV LO Q N N co 0] W W Q 0] Q 0] _ vW W � (D (D Cn Cn U) Cn Cn U) LL 0 2 Ll Table 2. Project Activity and Reporting History Meadow Spring Stream and Wetland Mitigation Site Elapsed Time Since grading complete: 2 years 4 months Elapsed Time Since planting complete: 2 years 4 months Number of reporting Years : 2 Activity or Deliverable Data Collection Complete Completion or Delivery Restoration Plan NA Sep-18 Final Design — Construction Plans NA Mar-19 Stream Construction NA Jun-19 Site Planting NA Jun-19 As -built (Year 0 Monitoring — baseline) May-19 Jun-19 Year 1 Monitoring Dec-19 Jan-20 Supplemental Livestake Planting NA Mar-20 Supplemental Planting NA Apr-20 Invasive Treatment NA May-20 S7 Brushtoe and WB Rill Repair NA Oct-20 Year 2 Monitoring XS: Jul-20 VP: Sept-20 Oct-20 Supplemental Planting NA Jan-21 S2 and S6-A Stream Hand Repairs NA Mar-21 Invasive Treatment NA Jul-21 Year 3 Monitoring XS: Jun-21 VP: Se t-21 Sep-21 Year 4 Monitoring Year 5 Monitoring Year 6 Monitoring Year 7 Monitoring = The number of reports or data points produced excluding the baseline Table 3. Project Contacts Table Meadow Spring Stream and Wetland Mitigation Site Designer WK Dickson and Co., Inc. / 720 Corporate Center Dr., Raleigh, NC 27607 Primary project design POC David Perry Construction Contractor Wright Contracting, LLC / 453 Silk Hope Liberty Rd, Siler City, NC 27344 Construction contractor POC (919) 663-0810 Survey Contractor Matrix East, PLLC / 906 N. Queen St., Suite A, Kinston, NC 28501 Survey contractor POC James Watson, PLS Planting Contractor H&J Forestry Planting contractor POC Matt Hitch Seeding Contractor Wright Contracting Contractor point of contact (866) 809-9276 Seed Mix Sources Green Resource (336) 855-6363 Nursery Stock Suppliers Arborgen (845) 851-4129 Monitoring Performers RES / 302 Jefferson Street, Suite 110, Raleigh, NC 27605 Stream Monitoring POC Ryan Medric (919) 741-6268 Wetland Monitoring POC Ryan Medric (919) 741-6268 Vegetation Monitoring POC JRyan Medric (919) 741-6268 Table 4. Project Background Information Project Name Meadow Spring County Johnston Project Area (acres) 60.9 Project Coordinates (latitude and longitude) Latitude: 35.5437 N Longitude:-78.3303 W Planted Acreage (Acres of Woody Stems Planted) 22.8 Project Watershed Summary Information Physiographic Province Rolling Coastal Plain River Basin Neuse USGS Hydrologic Unit 8-digit 03020201 USGS Hydrologic Unit 14-digit 03020201100050 DWR Sub -basin 03-04-02 Project Drainage Area (Acres and Square Miles) 379 ac (0.592 sqmi) Project Drainage Area Percentage of Impervious Area <1 % CGIA Land Use Classification Forest (45%) Agriculture (37%) Reach Summary Information Parameters S1 S2 S5 S6A S613-1 S6B-2 S7 S9 I S11 S12 S13 Length of reach (linear feet) 250 500 231 1,350 1,176 165 1,430 675 1,045 38 45 Valley confinement (Confined, moderately confined, unconfined) --- --- --- --- --- --- --- --- --- --- --- Drainage area (Acres and Square Miles) 36ac, 0.06sgmi 46ac, 0.07sgmi 36ac, 0.06sgmi 97ac, 0.15sgmi 171ac, 0.27sgmi 171ac, 0.27sgmi 278ac, 0.43sgmi 337ac, O.53sgmi 379ac, O.59sgmi 410ac, 0.64sgmi 31ac, 0.05sgmi Perennial, Intermittent, Ephemeral I I P P P P P P P P P NCDWR Water Quality Classification --- --- --- --- --- --- --- --- --- --- --- Stream Classification (existing) F5 C F4 F4 F4-E4 F4-E4 E4 E5 E5 F5 F5 Stream Classification (proposed) E5 E4/5 E4/5 E4/5 E4/5 E5 Evolutionary trend (Simon) --- --- --- --- --- --- --- --- --- --- --- FEMA classification --- AE AE AE AE AE Regulatory Considerations Parameters Applicable? Resolved? Supporting Docs? Water of the United States - Section 404 Yes Yes SAW-2016- 01989 Water of the United States - Section 401 Yes Yes DWR # 16- 0980 Endangered Species Act Yes Yes Mit Plan Appendix B Historic Preservation Act Yes Yes Mit Plan Appendix B Coastal Zone Management Act (CZMA or CAMA) No N/A N/A FEMA Floodplain Compliance N/A N/A N/A Essential Fisheries Habitat No N/A N/A 3. 6 I c 3 a 1 UTage Rd m � dya �a6 �O o^ �Py C °e yo o„ ebl 00 yRy Laurel Or 3 i �1 5 Law Stephenson Or Mobile Or Booker Dairy Rd Ext Shady Lane Or A 2 1 NHartley Dr u a S4nriseq ye 6 op, 0 Booker Da4y R x: m .. II Sto 3------___t1 E#t U o n Sunselq�e a Booker Dairy Rd' _ Stancil St v o a Pace St Smithfield Azaleao a0� Re—atun o g\ Whitley Dr E�crefr Area Y Ua`C C� O S tri cklantl Or 3 parkway Dr �� Or West DastleDr sae antl St Smithfield Holland Or �c P� 0 i okwood Oa tia a D 6a; hill �r/lo/i Dr o �n9ha`�e\ /.ig,. o, m� Sources: Esri, HERE, Garmin, USGS,el:hiermap, INCREMENT P, NRCan, Esri q 1ph Japan, METI, Esri China (Hong Kong);Esri Korrea, Esri (Thailand), NGCC, OpenStreetMap contributors, and the GIS User Community N Date: 10/13/2020 Figure 1 -Site Location Map w e Drawn by: RTM Meadow Spring Mitigation Site s Checked by: BPB rLms 0 1,000 2,000 Johnston County, North Carolina 1 inch = 2,000 feet Feet Legend Conservation Easement CCPV Index Sheet L --- i S a c� t �p'Py 1t l ro easo l) Dr Bullalo Rd a ' o T 0° m F f - N D Appendix B Visual Assessment Data O -O .0) O T �i U Y _ C Z 9 O O (n .- •- •- •- `O o. N N �j !0 N N !0 F> N N N NID 65 w a+ °� °� s s w s s s m c T o o (� m U M M m K K K w w d '� K N K w w w d U d K 0>"IIa"OIOOOBOIo"IIIIIIII®��®®� m LiM y 1 h � Am -O O 22 (n _ Z `O C 9 O U W O a 1/1 N N D d <d+ N N N D O V �p C > a iu~> o U U U 10 m W aEof �mm00�'If'If �'O'0Ofwwwa`C) Df n u5 v 0>"IIa"01000001o"IIIIIIII®��®®• F � \riFy Lw z a Meadow Spring MY3 Vegetation Monitoring Plot Photos Vegetation Plot 1 (9/28/2021) Vegetation Plot 3 (9/28/2021) Vegetation Plot 5 (9/28/2021) Vegetation Plot 2 (9/28/2021) Vegetation Plot 4 (9/28/2021) r � yp'. _ _. a a.' J Vegetation Plot 6 (9/28/2021) Vegetation Plot 7 (9/28/2021) Vegetation Plot 9 (9/28/2021) Vegetation Plot 11 (9/28/202 1) Vegetation Plot 8 (9/28/2021) Vegetation Plot 10 (9/28/2021) Vegetation Plot 12 (9/28/2021) Vegetation Plot 13 (9/28/2021) Vegetation Plot 15 (9/28/2021) Vegetation Plot 14 (9/28/2021) Vegetation Plot 16 (9/28/2021) i 1; I 3 4+ x1 �wii i l L Vegetation Plot 17 (9/28/2021) Vegetation Plot 18 (9/28/2021) 4 �p ! Stream Problem Areas Meadow S I Feature Issue / Location I Photo I Bank Erosion around Log Sill / XS16 Vegetation Problem Areas Meadow Suring I Feature Category / Location / Size I Photo I Invasive Species / S6 / 0.36 acres Invasive Species / S9 / 1.50 acres Appendix C Vegetation Plot Data Appendix C. Vegetation Plot Data Table 5. Planted Species Summary Common Name Scientific Name Total Stems Planted Water Oak Quercus nigra 3,500 Swamp Chestnut Oak Quercus michauxii 2,700 Sycamore Platanus occidentalis 2,300 Baldcypress Taxodium distichum 21000 Green Ash Fraxinus pennsylvanica 2,000 Overcup Oak Quercus lyrata 2,000 Willow Oak Quercus phellos 2,000 Persimmon Diospyros virginiana 2,000 Swamp Tupelo Nyssa bi ora 2,000 Water Tupelo Nyssa aquatica 1,700 Yellow Poplar Liriodendron tuli i era 1,600 Crab Apple Malus angustifolia 800 S Dogwood Cornus amomum 800 Flowering Dogwood Cornus florida 800 Buttonbush Ce halanthus occidentalis 700 Blackgum Nyssa sylvatica 600 American Plum Prunus americana 500 American Hazelnut Corylus americana 400 River Birch Betula nigra 400 Elderberry Sambucus nigra 100 Total 28,900 Planted Area 31.39 As -built Planted Stems/Acre 921 * Includes 8.6 acres of supplemental planting Appendix C. Vegetation Plot Data Table 6. Vegetation Plot Mitigation Success Summary Plot # Planted Stems/Acre Volunteer Stems/Acre Total Stems/Acre Success Criteria Met? Average Planted Stem Height (ft) 1 850 324 1174 Yes 6.7 2 526 1052 1578 Yes 4.5 3 647 0 647 Yes 6.9 4 486 0 486 Yes 3.1 5 486 0 486 Yes 4.8 6 647 0 647 Yes 6.0 7 688 0 688 Yes 5.6 8 688 0 688 Yes 7.6 9 607 1942 2550 Yes 2.1 10 809 728 1538 Yes 4.0 11 850 971 1821 Yes 5.6 12 809 0 809 Yes 5.5 13 769 0 769 Yes 5.2 14 567 162 728 Yes 4.4 15 486 324 809 Yes 4.1 16 364 121 486 Yes 4.6 17 526 0 526 Yes 3.8 18 283 0 283 No 3.9 R1 324 0 324 Yes 5.4 R2 324 0 324 Yes 3.6 R3 445 0 445 Yes 6.5 Project Avg 674 267 847 Yes 5.1 11111111111111111111111111111111 �=iiiiii�iiiiii ii ��IIIIII�IIIII, m■11111 ���rm���rm■ r� ��IIIIII-IIIII���II t�llllll-IIIII���II t�llllll-IIIIIt��ll �-IIIIII�IIIII���II ��IIIIII�IIIIIt��ll t�llllll�lllll,��ll t-IIIIII�IIIIIt��ll �-IIIIII�IIIII���II ■-111111_IIIII■��11 tl IIIIIIIIIIIt ��IIII��III�I�I��II ii ■IIIIII�IIIII�IO�II ■IIIIII�IIIII�I��II ■IIIIII�IIIII�I��II ■IIIIII�IIIII�I II IIInnrIIIIIIIrIrnIIIIIr ro �nnr��nrn�t r_ ■IIIIII�IIIII�I��II ■IIIIII�IIIII�I��II �111111�11111�1 IB illllllIIIIIIillllIIIIIl li �Illlll�lllll�i 11 �111111�11111�1 1 I■IIIIII�IIIII�I��II i° NIIIIIIIIIIIIIIIIIIIIIIIIIN� iiiii■111111�11111�11111 iiIIIIIIiiiiiIIIIIi IN t�llllll�lllll� I II��II I�II� Appendix D Stream Measurement and Geomorphology Data o ow olo ` o N m 2E m wmo—�!!�, N m o I Im moN7 m o om .E 0 I w 2E I I I I I I I I o No o m wN m 00 oo IN I I I -TT w 7 A 00 w N o N NA o N No o o o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 'o /�\��\�\� N o o &/ u) wm N oo 6 6 — o. 7 W NA m . . . . . . E E m . . . . . . . . . . . . . E . 2E m co w 1 I'llo-I co o . . . . . . . . . . c6 u) im i i i i i Nw �2 o o o o o o I w o . . . . . . . . . . . . . . . . . . u u o 7 o o cc 7 7 7 7 Mwgwgzff�w�� Zol w Cwm. w c w M23 'o wMco�cwgo c w c c 0 TM x m cc E .5 u5 30� 0, 5 0 o w h3 , m w . m o >w w — 3� cw 2 w 0 o 'o — w -. �o CC 0 CM h3 OE Cm j3 -0 cm :Ei 0 .0 0 E: c 10 wc MW E 0 c o 8 mc c c) E' - �o m E _MT E Ic 0 E- c o oo 0 . o N o o o m o mm ood No �-ON do 2 c6 Icj I'lo-I'll N imi F q;o 1. o o , m o I , o � ol o . �2 .E m 0 —O.Nmo— S 000 i o o m m w o �2 w m m N o - — — oo oo o — — — — — — IN — o m . . . . . . . . . . . . . . . . . . 16 . . — — . . . . . . . . . . . . . . — — . . — — — o — — - N M 0 0 o o M U) I 2E oo-- o 7 w NA E < , E wm M E . 2E U) W.0 co c6 a 0 U) .2 — — — — — — — — — — — — — — 0 . 0 m. o NA 'm mU m lo IN f lco ITH o o o x . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2E w o., �2 oj N I NNN '6 NA I ITH I I I I I u u — — — — — — — — — — EF EF cc cF cF o o EF EF E EF o E w w o � w w w o w o o w o Tm x 2E IS E .5 U5 3o� o' 5 2 ow -0 h3 , m w . m 0>w w — w . w o o 'o o 18 �o h3 -o 0 :Ei 0 .0 E: oo mw E o o 8 E: C) h3 in E- E o E o E2 E- o. �o . . . . . 0 Im mN w o So �jo 1,� f2j. I N o N w 1. 2E o w .E 0 w 2E m.Oo o �2 m oO �-D wm . . . . . oo, rn I I m I I 1wi lol w m o m N I I N I I N Nm 'N ml 0 - - lo m o o - - m - - - - - - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . c� q o o N IN No -1-o o o o o w o o o o. N N W NA E CO '6 2wE 2E I'l-o-o co O 10 N N N N N N N co .6 U. I . . . . . . . . . . . . . . F-- 0 o o o o w N o N m o w w oo. 0 , u m m _-o oo x . . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . I N . 2E ol o m 16 w - - - - - - - - - - o o o 0 w w o � - w w o w o w 'o mw x 2mE ol E .5 5) w � h3 >w 0 2 w o ' o 8' 0 m , 0 o o m m h3 wm �� -o o, 2m is o� o 'o C) Im _1 E o 0 m m o. w C) Im o m o Im m E Tm- rc - I 1 18. 1 1 1 1 1 1 m 0 . om . . . . . 0 m o m w o W of2jol-I Iml F N N w MW i iiiiii 1 2-E oO.o o N N o o .E mO 0 .wq,mw.-o 2E co 0. I IT o-I-I oo m oll IwI m. W N o N o — — �W 1 M N Mo 1 o o 1 — — — — — — — — . . . . . . . . . . . . . . . . . . . . oo . . . . . . . . . . . . . . m . . 't 1 O m Ao N o N M N 0 0 o o 1w o. N� E E U) o I . . . . . . . . . . oco c6 m. o om A —IN o NA m N Nw U) o. U I m w o o oo x 2E A A HTI INI u u - - - - - - - - - - i ccc cc cF cF o o EF EF EF o E i5 w 9w 9 Z w I o w -m w t5 zu 0 o o -d w - o mw x m 'o 2 E .5 5) 3o o o o h3 E m - 'm >w - w 2 w o o 'o o w �o 0 h3 o j3 -o w > w 0 .0 o Ua mw 2E E o 0 o C) E- -- mw koa m E m Tm- o oE .1 E2 E- ( \ _z z z zo )§ _ \\\\\\\\\\\\\\\\\\( \\\\\\\\ o } ��\\,®n\\(\,�:�,ee�\\��,���:�\\ �,��,�e,\\ o ,\\0e CiA (/m\\ \\\\m�� z z z , ,,��\\ :z ( oo \\�\\\\\\� \\\\\\\\\�\\\\\\\\\�\ \\\}\\\\� \ \\\\\\A \ 00 )�(�— ; ( \ \ _ _ _ oo \ \\�\\\\\�u o \\\\\\\\�u\}�\\\\\� �\ \\\\\\\\u \ \\\\\\\\ \\\\\\ \\\,,m \\\\\ \\\\ t �\\ , \\\\\\\\\\\\\\\\\\\\\\\\\\ o )) !&&%yf)) )) )f&yff)) )ff yf{))) $));f]\\ $));f]\\ $))yf]\\ $))yf]\\! cc ���\\\ \���\\\ \���\\\ \���\\\ \�� \\\\ k k k k k 0 E N a O l0 N x W 00 m L I _ I N N I N oN O1 M -- � co � O I co co O I w U O M N v'� N a, Cl) o Y C o v o N "o °O N O I „r 0 0 I U N N fn I � co r o o cy o 0 I 0 0 U I N N d 00 0) n N m N N U 0 o N fl o .y N �N L N I I 7� '�l ' FBI cu oco,w � � o I co I I I � A O I 'IT ((0 (UO (MO (NO (O 0 (11) uoi;enal3 O c O � ct cz c cz � O 4.1 cz U U CZ N pp ,y cz O w C cz cz c cz cz cz 0 0 0 E E � k _ co \ : \ _ \ £ § j c ' c | I k 7 E co \j ~ u ® 2\\ ^ J \ \|( . $ 0 2 0cu & \ q u OO// \\ LO § _ § \ a %] e \/ m |� � � / / ) / ) / \ / dugegg / 2 \ / 2 q _ .a ( / / 2 - A \; -4 \ \ ) � § = g § / \ g / k ® \ \ / \ . § \ g \ z _ \ / k § _ E E � k _ � m ® - | , r t � \ f ) co/ [ J � E | | co § co k m o r ) \ \ F\0 � A \ 7 n o | _ � ) � 00 f \\ / \) � 2 � %co / \ ` �/ co � |I I § / / 'IT/ ) ) / dugegg \ 2 \ 2 / � n .e ( 2 / / 6 / 4 « \ w / \ \ g \ & & \ \ § §t\ \ \ \ \ § g / & % \ CZ ■ _ \ / 7 ƒ ® \ _ © \ \ . 2 g z _ \ / k § ■ § \ E E � k _ x 2 ! - \ � - \ u 2 \ � ] a ) # , 2 % 7 o e / t/) x x p/ r x x § � / \ / � CD I oc 7 § \ \ \ \ � = j \ � � \ / \ 1 _ E / � C ƒ - - - .R2R % \ i } r. � z \ \ § g | § d / \ _ , \ z e _ \ \ \ co | § / z o k 2 _ dugegg O N X x W l0 OO N i x m LD N V N O co co I LO C co O co N fn o O Y N o O I• U � N N � 0 ' I• � U to fn I• v m N N I I: u N m Q I• 00 rn I. O N a Q- O fnLD O LL I• �O I• N I om I� N O I• O Q Cl) I I• I' O I I M Ln N Ln O Ln M V 00 V r V Ln (11) uOi;enal3 H C O O z. cz '� WCC M oU c cz cz R. cyj 7-r cz o � w w cz m cz cz W cz W E E � k _ \ \ \ _ \ k ƒ % 0 / § \ k m / | $ o � o \ / o G \ \ \ ( � � | / / % § m [ / § � � |� a [ \ e m | / ) ) / ? ? } dugegg / 2 \ 2 / 2 � _ .a \ f f } } '- g ] j 4.1 : = g § / \ � / / / / g k ® \ } \ k § \ \ g / § \ _ N Q O N x X W o •� •I 0 > rxi LD N V N O N rn c M � Ico C O (co U V/ O Cl) O y 04 v% O N (6 m 04 -i c�i Icap v m 0 d Ids N Q ' O c ai 00 p OL N O Q� 0 O LL (� LO � O I 3 I O m (O O X N O O Q •� •I O I O O) V OD r� V V (O V In V V V m V (11) uOi;enal3 H c 0 -71- rn /� l— 00 rn O S. a H O /y1 Y Y Y z � x z p cz cz M 4W W �Q O l0 N �-I x W o 00 LO N I m N X Q rn I 00 co I o I I O a I (D co U y M O Vi Z Z 00 O co co r� r n o ,u^ v/ 0 I N O U r— N o CN I � 0 I O I� N N 00 rn C N ti ti ti ti ,^ � r �y cz N p N cC 4.1 w dco o o Ucz I I z A 0 c c r- (0 U) c �Q (11) uOi;enal3 O O cz N N Q o c6 o� X W 0 V rxi LD N V N 0 N co L6 (o c Cl) 0 U O O y U) Cl) o m N L I� N o or N N N N � O) a) pp o O L N O Q 0 O (n LO LL � 0 I r rn � 00 0 (D N i O Q � Q Cl) II 0 I V M N O LO M V V V V V V cc2 (11) uoi;enal3 ram" O O cz ��� z -� � x cz u 7-r cz cz O U cz � y� w cz cz 4: W L: �Q O o cz E � k _ xco 2 { \ \ \ 2 \ _ k \ { ƒ 2 % c \ 0 a \ / ) m ® \ - ( / \ \ / / / \ / � o \ / \ � \ 2 2 © ) i j ) & 2 /CL � f j % \ ƒJR2R § | 2 ] \ \ \ \ j 4.1 z j 2 a [ / z § g # ® e t e \ \ \ _ | 2 g / m _ � / / ® o k _ dugegg N a O l0 N x W 00 o LO I m N o I I ~ I co I O I o d CO U cn co oc � `-i co vi I O co � o CD Cl) I I y O I U N o N i N O m 04 Z Z Z c-1 cal o toI N } � � U I � N I ' oc 00 rn C i � 0 CL in N L .� 5 5 }C, o O o cz cz co cz O 4. N O M 00 r O In (11) uOi;enal3 cz 4+ U U cz C U U 0p cz z c o � w cz w v 'cz C U � cz cz c cz 0 00 E � k _ \ : : \ ) / : \ ) : a ® : : § c \ 2 : E 2 r | m ) : m m § : / f m §] \\ o § A = t ] � t CN � U t k m / {{ �E 7 � 2 � a ) %] 2 \/ m |� � � o = e w a o k u mg \ / b / / _ \ \ � \ � � � � � 6 \ Q n � ^ r � \ § a A a 2 \ \ < < » m g 4 4 // a 2 Z 2� \ f f f \ \ z § = g § /, ; g g / 4 / 9 \ \ g § / _ j 5 _ j \ m E E � k _ I� \ \ � ? � t � f % � e m k c \ / m o i _ o % ¥ 04 co o t G ( m , ] 2 u | / / R CL m / \ § � � § \ e m | 0 dugegg / 2 \ 2 / 2 n \ \ k f © f \ } g § = g ; / \ \ \ / \ \ k � \ \ \ k \ \ z \ f a k _ E E � k _ co \ 04 2 Cl)\ c | / § co k o m Cl) cl ® _040 ^ \�: co m j k & J } /00 CL % \j � a } %] 2 co\/ o � k u mg � | � 7 a ! � � � � ! 7 ■ ! | � 7 a ! i ■ / 2 \ / 2 # \ .e � 2 / E � k _ \ : r a S co\ � C.0 | co I �( Cl) Cl) % f \ \ / �, o ` 7|( § C ) / t \j � — � � ] � ` �) § ƒ Cl) | � o dugegg / 2 \ 2 \ % _ 9\ 9 t f ( f \ \ / 2 \ \ A _ / n / f } } g ) 4.1 \ g / / \ g k � \ } \ k \ \ zcz \ i _ § k _ § \ g g O N 1 m x W Oo � m I L I I N I o E � co ch rl I � � O f3 CO Co 00 O W w N I Cl) n w Cl) O co Cl) � I O Co I a� N N I O L 0 U ~ N cu ¢ 00 00 M 1p N N M M I N fl U Ny �o �o iL I fn o ct fC 7� I 04 I I �_ cz cz I o In V m N O O) (O N N N N (11) uOi;enal3 E E � k _ - ,� - \ \ � � � \ � A � t % \ / m '� Cl) § 9 $ 0 ] \ ® /2 � �|)§ ) / k § \ m / o 2 e %� R / Cl) \ / o � dugegg / 2 \ 2 / 2 � \ 3 ( ° 7 z/ m m z g g ) � ; g # ®& t } ® \ \ ? \ © � ) _ k § _ E � k _ x 2 � f \ ) 2 \ ] \ k \ ƒ 2 � % o a / e x x 2 2 2® 2 2 2 c co co \ / .2 k / / 2 m § ® » o » R S C.4 � � ) i a � � i °\ow- - o A z z R x x / / 3 3 a a©»» / % _ _ e — e - _g � \ |m o — \ ■ dugegg § \ g g N CL O N I m w 00 LD I I N o rn co r� I N 0 (O co U M ✓� N GO � � � y ,M-i � ,M-i �j rn co v� c co o p I i. u cq cA I oco N m cA I N N �Nh, 0 UI � � � I I � fn N 0 t I V N d o o I Oo °' InN A 6 c L oO Q N �� I Q I LD O O .-I Y ^ •-. •-. � m (o o � o ,� ccz I co �¢ I I I � O (O in 'ITm N i- (11) uOl;enal3 N a O l0 N l0 W OO l0 N 3 5 LID IT N m I N o I O eq co I O I O co N N V O co co ch � v O I U o cCD o N N O U N O 04 co N N � I � 0 U I I � IN � � I ao � i 0 I N in LO $ O O ;l. 4.1 O G% 14 o I I 40 A � O In V M N O (O (11) uOi;enal3 E � k _ x 2 � \ \ 2 \ \ � / ® / � ± / eq % a 0 \ / Q § co co\ / k / $ O a » ' S § � a � � / / m / _ _ e — e -R R � � a \ \ 2 ® \ o / ■ dugegg § \ g g E � k _ x 2 \ \ 2 r t / \ o 2 q co � J ƒ / � q t co- § co ( $ / ) \ = z a 3 \ m )] | o \ /\0 2 a 6 \ | � 5 % CN n < J )$ z o a% g A // o 2 CL /R \ j J R 0 0 co e / R \< m | \ / � § Q _ / o / ■ dugegg g g E � k _ ( 2 :� \ - \ � \ :� n2 co � 2 § 2 / | % f \ e f z r 2 q m ® \ § t e $ m 04 § ] / \ /\0 lk |} . g \ 9 a\ 4 w A � C,4 � t ° S& ) a 9@$ r a 3 a 3 n w\ g / A E ' r \ j -R R 2 : ■ S S ± .» � \ ( � % � \ e § 6 )� �< 9 / Q \ ® $ / 0 2 ■ dugegg g g E O l0 N x W Oo o Ln I m N X ° � a � Q co I I N I p aco DD N Z Z -T Z Z O C co co O U (V M Vl U) O I Z Z ' Z y Z N O (� N O N U � O O N � U � N � cd M Vl � M Z Z Oo rn n L Q I I o N � Y Y LO >- c G C75 O O ^� C75 o N ce o5 4 O 0 V) , W O O I co co cC x W O I� O Ln V m N �Q (11) uOi;enal3 Appendix E Hydrology Data Table 10. 2021 Rainfall Summary Month Average Normal Limits JoCo Airport Station Precipitation 30 Percent 70 Percent January 4.24 3.24 4.93 4.32 February 3.64 2.51 4.34 4.89 March 4.57 3.44 5.33 2.10 April 3.24 1.99 3.92 0.58 May 4.17 2.91 4.96 1.60 June 4.14 2.70 4.97 5.14 July 5.43 3.48 6.53 7.27 August 4.58 3.05 5.49 2.93 September 4.54 2.26 5.55 0.80 October 3.16 1.89 3.81 NA November 2.95 1.86 3.55 NA December 3.05 2.02 3.65 NA Total 47.71 31.35 57.03 29.63 Above Normal Limits Below Normal Limits Table 11. Documentation of Geomorphically Significant Flow Events Year Number of Bankfull Events Maximum Bankfull Height (ft) Date of Maximum Bankfull Event Stage Recorder S6B MYl 2019 0 0.00 N/A MY2 2020 5 0.75 2/7/2020 MY3 2021 1 0.09 7/9/2021 Stage Recorder S11 MY12019 2 0.77 9/5/2019 MY2 2020 12 11.00 2/29/2020 MY3 2021 5 8.48 1/4/2021 Table 12. 2021 Max Hydroperiod (Growing Season 18-Mar through 6-Nov, 233 days) Success Criterion 12% Well ID Wetland ID Wetland Treatment Consecutive Cumulative Occurrences Days Hydroperiod % Days y Hydroperiod GW1 I WI E (3:1) 20 8 83 35 14 GW2 WI E (3:1) 94 40 186 80 2 GW3 WB RH (1.5:1) 35 15 98 42 12 GW4 WH RE (1:1) 16 7 61 26 11 GW5 WH RE (1:1) 16 7 44 19 14 GW6 WH RE (1:1) 53 23 118 50 5 GW7 I WH RE (1:1) 9 4 26 11 7 GW8 WF-B E (3:1) 54 23 140 60 7 GW9 WGA E (3:1) 122 52 185 79 2 GW10 WGB E (5:1) 53 23 146 63 5 GWII WF-A p 31 13 100 43 9 RGWI WF-A p 2 1 11 5 12 <5% 1 5-11% 1>12% Table 13. Summary of Groundwater Monitoring Results Meadow Spring Well ID Wetland ID Wetland Treatment H dro eriod % ; Success Criteron 12% Year 1 2019 Year 2 2020 Year 3 2021 Year 4 2022 Year 5 2023 Year 6 2024 Year 7 2025 GW1 WI E 9 6 8 GW2 WI E 17 26 40 GW3 WB RH 7 17 15 GW4 WH RE 2 5 7 GW5 WH RE 2 8 7 GW6 WH RE 8 23 23 GW7 WH RE 2 4 4 GW8 WF-B E 8 18 23 GW9 WGA E 19 81 52 GW10 WGB E (5: 1) 8 26 23 GWII WF-A p 10 22 13 RGWI WF-A p 2 5 1 (smpui) uoi;e;idl3OJd O O o N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O I I C O N f3 N � rV, 00 V O 'i cn I cu cu c O � o L r Q d Q 0 C 0 o G � � 04 I I O N I co I I I I I N I I I N I O O O O O O O O (say3ui) uoi;enBIB aa;empunoaE) (segmi) uoge;idi3oad O O o N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O I I C N ao c� co _ I 'i Q I co af O 0 LO 0 r Q I 0 � U 0 � � N I O I N I I I co I I N I I I I N ------------ I 0 0 0 0 0 0 0 0 (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uoi;e;idi3oad O O o N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O I I C O 0') M in I ao 'i Q cu co cu I; C � o LO r O d I o C o 0 G � � 04 I I O I N I I I co I I N I I I I I N I I 0 0 0 0 0 0 0 0 (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uoi;e;idi3oad 0 0 0 N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O I I C O N � 00 V 'i cu I cu of , LO 0 I I 0 � U 0 � � N I o N I I I co I I N I N I I O O O O O O O O (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uoi;e;idi3oad O O o N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I O I I C O 00 C � 'i cu Cl) cu cu LO Q d0 I C � U o G � � N I I o N co I I I I N I N O O O O O O O O (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uoi;e;idi3oad O O o N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O I I c O I (a I �_ 00 � I � 'i Q ILO Cl) cocu L r O d I o C o 0 G � � 04 I I O I N I I I co I I N I I I I I N I I 0 0 0 0 0 0 0 0 (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uoi;e;idi3oad O O o N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O I I I I I 00 V � _ � I CL cu E •O I I � cu O V LO Q A� W I 0 C o 0 G � � r N I o N co I I I N I I N I O O O O O O O O (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uol;e;ldl3oad O O O O O O O O O' 00 I� M In V M N O O O O O O O O O O O I I I N I I I I I O I � o I I I 0') CO L 00 � 'i Q O 0 af .T 0 I LO � r Q 0 U 0 � 04 O I � I I N I I I M N I I I I I I N I I I 0 0 o m O O O O o O O (say3ui) u014en813 ao;empunoaE) (SOegmi) uoi4e4!dl3oad O O O O O o (O In V M N O O O O O O O O O O O I I I N I I I I I O I I c o I I I 00 'i Q I co cu i r Q G� C I Q o o 0 G � � 04 I I O I N I I co I N I I I I I I I N I I 0 o0 O O O o o O O (say3ui) u014en813 ao;empunoaE) (segmi) uoi;e;idi3oad O O O O o V M N O O O O O O O O O O O O W r (O Ln V (M N O I I I N I I I I O I I Ell. 00 V w O = I .0 Q � 5 cu m � p 0 Lf r I � 0 0 U C G G I o r N ' I C N I I I I I N I I I I I N I I 0 rn O O O O O O O (soy3ui) uoi;enBIB ao;empunoaE) (segmi) uol;e;ldl3oad O O O O o V M N O O O O O O O O O O O O W r (O In V (M N O I I I N I I I I I O IMal I C O m I r acu � C 3 w � cn I I � 0 af T 0 O � I L � r 0 U C G G r C � o 'N N I I I I I N I I I I I N I I 0 O O O O O O O (say3ui) u014en813 ao;empunoaE) (segmi) uol;e;ldl3oad O O O O O O O O O' 00 I� M In V M N O O O O O O O O O O O I I I N I I I I I O I I 0') r � 00 LL LU c 3 W af W � � I 'i =af I ; w ?� p I LO ° o � 2- 0 QCi o G � N co O N N I N I I 0 O o O O O o O O O o LO (say3ui) u014en813 ao;empunoaE)