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Home My WebLink About20171041 Ver 1_Year 0 Monitoring Report_2021_20210907ID#* 20171041 Version* 1 Select Reviewer:* Erin Davis Initial Review Completed Date 09/07/2021 Mitigation Project Submittal - 9/7/2021 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* V Stream r- Wetlands r` Buffer r` Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Paul Wiesner Project Information ................................................................................... ID#:* 20171041 Existing IDI# Project Type: Project Name: County: r DMS r Mitigation Bank Little Sebastian Site Surry Document Information Email Address:* paul.Wesner@ncdenr.gov Version: *1 Existing Version Mitigation Document Type:* Mitigation Monitoring Plans File Upload: Little Sebastian_ 100027_MYO_2021.pdf 8.25MB Rease upload only one RDFcf the conplete file that needs to be subnitted... Signature Print Name:* Paul Wiesner Signature:* �X/ I �;" -;-I 1 As -Built Baseline Monitoring Report FINAL LITTLE SEBASTIAN SITE NCDMS Project 9 100027 (Contract 4 7187) 1 RFP 16-006993 (Issued 9/16/2016) USACE Action ID: SAW-2017-01507 I DWR Project # 2017-1041 Surry County, North Carolina Yadkin River Basin HUC 03040101 Provided by: pres Resource Environmental Solutions, LLC For Environmental Banc & Exchange, LLC Provided for: NC Department of Environmental Quality Division of Mitigation Services August 2021 fires August 26, 2021 Paul Wiesner NC DEQ Division of Mitigation Services 5 Ravenscroft Drive, Suite 102 Asheville, NC 28801 3600 Glenwood Avenue, Suite 100 Raleigh, NC 27612 Corporate Headquarters 6575 W Loop S #300 Bellaire, TX 77401 Main: 713.520.5400 RE: Little Sebastian Mitigation Site: Baseline Report and As -Built Drawings (NCDMS Project I D #100027) Listed below are comments provided by DMS on August 11, 2021 regarding the Little Sebastian Mitigation Site: Baseline Report and As -Built Drawings and RES' responses. Report Cover: Please also include the RFP # and issuance date of the RFP on the report cover: RFP 16-006993 (Issued 9/16/2016). Done. General: The 2018 IRT approved mitigation plan reported 4,554.300 SMUs on the project site. The draft MYO report notes 4,573.960 SMUs on the site due to the addition of Reach JN7 (37 linear feet of stream restoration). This represents a 19.66 SMU increase on the project site; please provide a separate mitigation plan addendum request (memo) for IRT review and approval to accompany the revised MYO report and Record Drawings. Please confirm that the USACE non-standard buffer width calculation was recalculated on the entire project site after the addition of Reach JN7. Please provide the full set of revised stream buffer credit adjustment maps and supporting documentation in the mitigation plan addendum for I RT review. Confirmed, the non-standard buffer width calculation was recalculated for the entire project. The full set of revised maps and supporting documentation are in the mitigation plan addendum. Section 1.1 — Project Location and Description: "Funding will be supplied by the responsible party on a yearly basis until such time an endowment is established." Please clarify or remove this sentence. This sentence has been removed. Section 1.3 — Project Success Criteria: This section references the Apple Valley Mitigation Plan. Please update the text and QA/QC this section to confirm that the success criteria presented is consistent with the IRT approved mitigation plan for the Little Sebastian project. This typo has been corrected. Section 1.4 - Project Components: The proposed addition of JN7 represents a 19.66 SMU increase from the IRT approved mitigation plan. Please update the section accordingly. This section has been updated. Section 1.5 - Stream Mitigation Approach: In the report text, please also note the type of fencing installed to exclude livestock from the project conservation easement. If multiple fencing types were utilized, please describe in the report text. The fence is five -strand high tensile electric. This has been added to Section 1.6 Section 1.7 - Baseline Monitoring Performance (MYO): Please indicate how project photo points have been established and will be monitored on the site. Fixed digital image locations appear to have been established at each cross section, vegetation plot, stage recorder, and flow gauge. Per recent IRT discussion, DMS recommends adding photo points in the MY1 (2021) report at each project crossing location to document crossing stability and function during the monitoring term. RES has added information about fixed digital image locations to Section 2.0 and agrees to include crossings. Table 4 and Table 7: Table 4 notes that the project area is 6.42 acres and the planted acreage is 6.09 acres. Table 7 indicates a planted acreage of 10.7 acres. Please review and update the report as necessary. Based on the CCPV maps and a construction site visit, numerous areas of the project site do not appear to have been planted due to existing vegetation within the conservation easement. This error has been corrected Appendix A — Table 1: DMS recommends adding a note to Table 1 indicating that all crossings and utility easements have been removed from the credit calculations. Done. Appendix A — Table 2: In the table, please update the elapsed time since grading and planting. Done. Appendix B - Visual Stream Stability Assessment & Vegetation Condition Assessment Tables: On the tables, please include the date/s that the visual assessments were performed. These dates should also be included in future monitoring reports in these tables and Table 2. DMS understands this is a variance from the current template; however, it will help address IRT concerns discussed at the most recent IRT credit release meeting (2021). Done. Appendix D - Cross Section Sheets — Cross Section 4: The cross section sheet notes that the reach approach associated with the cross section location is Ell. The CCPV sheet notes El. Please review and update as necessary. The correct approach is El. This has been updated in the report. Appendix E - Cover Page: Please update the appendix cover sheet to "Record Drawings" to coincide with the table of contents and sheets provided. Done. Record Drawings: • The project conservation easement shown on the draft record drawings is identified as the Limits of Proposed Conservation Easement (LCE). The final recorded conservation easement (approved by the NC SPO) should be utilized for the record drawings. Please update the record drawings and legend accordingly. Once updated, please confirm that no areas of fencing or project crossings are located within the recorded conservation easement. The record drawings have been updated with the recorded easement. Two areas of fencing within the easement were found on MC1 and will be removed by MY1. • Thank you for showing the relocated utility line on the record drawings. Please confirm that no other utility lines/ utility easements cross the conservation easement. If others exist, please make sure to show them on the final record drawings. Confirmed. Digital Support File Comments: • A majority of features in the "Streams_AB_LittleSebastian" shapefile have lengths that differ from the lengths reported in the asset table by more than 5 ft. Please review these features and ensure that feature lengths reflect asset table lengths. Also, please be sure that there is a feature representing each record in the asset table. The stream shapefile has been updated to the most recent version which matches the asset table. • Note that there is a portion of the feature for MC3-13 that is outside of the conservation easement. This is no longer an issue with the updated shapefile. • Please include unique ID's with the stream gauge features that correspond with the ID's that will be used for the supporting data. Done. • Please submit features that represent the mitigation plan design, ensuring that there is a feature representing each record in the asset table and that feature lengths are within 5 ft of asset table lengths (e.g. Mitigation Plan Footage or Acreage). Done. • Please include the as -built .DWG file with the final digital submission. Done. • Please associate stem heights and x,y coordinate data with individual stems for the fixed plots, and be prepared to indicate planted vs. volunteer stems in subsequent monitoring years. CVS datasheets have been included in the digital submission Table of Contents 1.0 Project Summary..................................................................................................................................... 1 1.1 Project Location and Description.............................................................................................. 1 1.2 Project Goals and Objectives.................................................................................................... 1 1.3 Project Success Criteria............................................................................................................. 2 Stream Restoration Success Criteria................................................................................................ 2 VegetationSuccess Criteria............................................................................................................. 2 1.4 Project Components.................................................................................................................. 3 1.5 Stream Mitigation Approach..................................................................................................... 3 1.6 Construction and As -Built Conditions...................................................................................... 5 1.7 Baseline Monitoring Performance(MYO)................................................................................. 6 Vegetation........................................................................................................................................ 6 StreamGeomorphology................................................................................................................... 6 StreamHydrology............................................................................................................................ 6 WetlandHydrology.......................................................................................................................... 6 2.0 Methods.................................................................................................................................................. 7 3.0 References............................................................................................................................................... 7 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 Figure 3. JN7 Stream Buffer Credit Adjustment Table 5. Visual Stream Morphology Stability Assessment Table 6. Vegetation Condition Assessment Vegetation Plot Photos Monitoring Device Photos Appendix C: Vegetation Plot Data Table 7. Planted Species Summary Table 8. Vegetation Plot Mitigation Success Summary Table 9. Stem Count Total and Planted by Plot Species Appendix D: Stream Measurement and Geomorpholo2y Data Table 10. Baseline Stream Data Summary Table 11. Cross Section Morphology Data Table Cross Section Overlay Plots Appendix E: Record Drawings 1.0 Proiect Summary L I Project Location and Description The Little Sebastian Mitigation Site ("the Project") is located in Surry County, approximately 10 miles north of Elkin. The Project presents 4,573.960 Cool Stream Mitigation Units (SMU) along Mill Creek and three unnamed tributaries. The Project's total easement area is approximately 25.91 acres within the overall drainage area of 3,261 acres. The Project has two separate portions and in between those portions is the Gideon Mitigation Site. The Gideon Mitigation Site has a total easement area that is approximately 11.23 ac and presents 4,782 linear feet of stream restoration, enhancement, and preservation. Therefore, a total 37.14 ac and 12,887 LF of stream are protected in perpetuity. Grazing livestock historically had access to all stream reaches within the Project. The lack of riparian buffer vegetation, deep-rooted vegetation, and unstable channel characteristics contributed to the degradation of stream banks throughout the Project area. The Project will be monitored on a regular basis throughout the seven-year post -construction monitoring period, or until performance standards are met. The Project will be transferred to the NCDEQ Stewardship Program. This party shall serve as conservation easement holder and long-term steward for the property and will conduct periodic inspection of the site to ensure that restrictions required in the conservation easement are upheld. 1.2 Project Goals and Objectives Through the comprehensive analysis of the Project's maximum functional uplift using the Stream Functions Pyramid Framework, specific, attainable goals and objectives were realized by the Project. These goals clearly address the degraded water quality and nutrient input from farming that were identified as major watershed stressors in the 2009 Upper Yadkin Pee -Dee River RBRP. The Project will address outlined RBRP Goals 2, 4, and 6 (Mitigation Plan). The Project goals are: • Improve water transport from watershed to the channel in a non -erosive manner in a stable channel; • Improve flood flow attenuation on site and downstream by allowing for overbanks flows and connection to the active floodplain; • Improve instream habitat; Restore and enhance native floodplain vegetation; and Indirectly support the goals of the 2009 Upper Yadkin Pee -Dee RBRP to improve water quality and to reduce sediment and nutrient loads. The Project objectives to address the goals are: • Designed and reconstructed stream channels sized to convey bankfull flows that maintain a stable dimension, profile, and planform based on modeling, watershed conditions, and reference reach conditions; • Permanently excluded livestock from stream channels and their associated buffers; • Added in -stream structures and bank stabilization measures to protect restored and enhanced streams; • Installed habitat features such as brush toes, constructed riffles, woody materials, and pools of varying depths to restored and enhanced streams; • Reduced bank height ratios and increased entrenchment ratios to reference reach conditions; Little Sebastian Site 1 As -Built Baseline Monitoring Report Surry County, NC August 2021 • Increased forested riparian buffers to at least 30 feet on both sides of the channel along the Project reaches with a hardwood riparian plant community; • Implemented one agricultural BMP in order to limit inputs of sediment, nutrients, and fecal coliform to streams from surrounding farming operations; • Treated exotic invasive species; and • Established a permanent conservation easement on the Project. 1.3 Project Success Criteria The success criteria for the Project follows the 2016 USACE Wilmington District Stream and Wetland Compensatory Mitigation Update, the Little Sebastian Final Mitigation Plan, and subsequent agency guidance. Cross section and vegetation plot monitoring takes place in Years 0, 1, 2, 3, 5, and 7. Stream hydrology, wetland hydrology, and visual monitoring takes place annually. Specific success criteria components are presented below. Stream Restoration 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 above 1.4 within restored riffle cross sections. Channel stability should be demonstrated through a minimum of four bankfull events documented in the seven-year monitoring period. Digital images are 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. Stream restoration reaches will be monitored to document intermittent or seasonal surface flow. This will be accomplished through direct observation and the use of hydraulic pressure transducers with data loggers. Reaches must demonstrate a minimum of 30 consecutive days of flow. Flow gauges will be installed on JN2-A and BSI -A. The flow gauge on BSI -A will also be capable of monitoring bankfull events. Vegetation Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the Project follow IRT Guidance. The interim measures of vegetative success for the Project is the survival of at least 320 planted three-year old trees per acre at the end of Year 3, 260 trees per acre with an average height of six feet at the end of Year 5, and the final vegetative success criteria is 210 trees per acre with an average height of eight feet at the end of Year 7. Volunteer trees are counted, identified to species, and included in the yearly monitoring reports, but are not counted towards the success criteria of total planted stems until they Little Sebastian Site 2 As -Built Baseline Monitoring Report Surry County, NC August 2021 are present in the plot for greater than two seasons. Moreover, any single species can only account for up to 50 percent of the required number of stems within any vegetation plot. Any stems in excess of 50 percent will be shown in the monitoring table but will not be used to demonstrate success. 1.4 Project Components The project streams were significantly impacted by livestock production, agricultural practices, and a lack of riparian buffer. Improvements to the Project help meet the river basin needs expressed in the 2009 Upper Yadkin Pee -Dee River Basin Restoration Priorities (RBRP) as well as ecological improvements to riparian corridor within the easement. Through stream restoration, enhancement, and preservation, the Project presents 4,573.960 Cool Stream Mitigation Units (SMU) (Table 1). An additional 19.66 SMU were generated from the addition of JN7 between Final Mitgiation Plan approval and construction. This is discussed in detail in Section 1.6 and a stream buffer adjustment figure is in Appendix B. Mitigation Approach Linear Feet Ratio Cool Base SMU Restoration 2,758 1 2,758 Enhancement I 597 1.5 398 Enhancement 11 1,898 2.5 759.2 Enhancement II 1,372 5 274.4 Enhancement II 819 7.5 109.2 Enhancement II 243 10 24.3 Preservation 418 10 41.8 Total 8,105 4,364.900 Credit Loss in Required Buffer-296.37 Credit Gain for Additional Buffer 505.43 Total Adjusted SMUs 4,573.960 1.5 Stream Mitigation Approach The Project includes priority I stream restoration, enhancement I, enhancement II, and preservation. Priority I stream restoration incorporates the design of a single thread meandering channel, with parameters based on data taken from reference sites, published empirical relationships, regional curves developed from existing project streams, and NC Regional Curves. Analytical design techniques also were a crucial element of the project and were used to determine the design discharge and to verify the design as a whole. Reach JN2-A - Preservation activities included improving the existing livestock exclusion fencing and buffers greater than 30 feet. The easement was extended to provide preservation beyond the origin point of the stream as per the PJD. Reach JN2-13 - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. Minimal bank grading and buffer re-establishment was done along the downstream end. In -stream structures such as log sills and one log cross vane were installed for stability and to improve habitat. The restoration of the riparian areas at the downstream end filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach JN2-C - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. Minimal bank grading and buffer re-establishment were done along the Little Sebastian Site 3 As -Built Baseline Monitoring Report Surry County, NC August 2021 downstream end. The restoration of the riparian areas at the downstream end filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach JN2-D - Enhancement activities included some channel relocation, bed, and bank stabilization, removing an existing ford crossing and access road, improving habitat through supplemental buffer plantings, and livestock exclusion fencing. The restoration of the riparian areas at the downstream end filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach JN3-A —Enhancement II activities at a 7.5:1 ratio included improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the right bank filters runoff from adjacent pasture and reduce sediment loads. Reach JN3-B - Restoration activities included constructing a new channel within the natural valley to the north with appropriate dimensions and pattern and backfilling the abandoned channel. In -stream structures such as log sills, brush toes, and log vanes were installed for stability and to improve habitat. Habitat was further improved through buffer plantings and livestock exclusion. Buffer activities improved riparian areas that filter runoff from adjacent pastures, thereby reducing nutrient and sediment loads to the channel. Also, the reach was built through two small jurisdictional wetlands that are currently on the right bank floodplain and degraded from cattle access and pasture -use. While this project is not claiming any wetland credit, the raised channel bed enhances the wetlands' hydrology by reconnecting the floodplain wetlands to the stream. Two groundwater wells were installed on the right floodplain to monitor the wetland hydrology and will be reported in the yearly monitoring reports. Reach MCI -A - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the right bank filters runoff from adjacent pasture and reduce sediment loads. Reach MCI-B - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the left bank filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach MCI-C - Restoration activities included using log structures to provide vertical stability, assist in maintaining riffle, run and pool features and to provide habitat features. Cut and fill was balanced in an effort to raise the channel bed to provide regular inundation of the adjacent floodplain. Habitat was improved through supplemental buffer plantings and livestock exclusion fencing. The Gideon Mitigation Bank was constructed with the Project. Reach MC3-A - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the right bank filters runoff from adjacent pasture and reduce sediment loads. Reach MC3-B - Enhancement activities included reshaping the left bank, install coir matting and livestakes, and improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the left bank filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. A ford crossing was installed on this reach. Reach MC3-C - Enhancement activities included reshaping the left bank, install coir matting and livestakes, and improving habitat through supplemental buffer plantings and livestock exclusion fencing. Little Sebastian Site 4 As -Built Baseline Monitoring Report Surry County, NC August 2021 The widening and restoration of the riparian areas along the left bank filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the project area. Reach MC3-D - Enhancement activities includes improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the left bank filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach BSI -A - Restoration activities included using log and rock structures to provide vertical stability, assist in maintaining riffle, run and pool features and to provide habitat features. Cut and fill were balanced in an effort to raise the channel bed to provide small floodplain benches where topography allows. Habitat was further improved through supplemental buffer plantings and livestock exclusion fencing. An engineered sediment pack was installed at the top of this reach. Reach BSI-B - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the left bank filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the project area. Reach BSI-C - Restoration activities included using log and rock structures to provide vertical stability, assist in maintaining riffle, run and pool features and to provide habitat features. Cut and fill was balanced in an effort to raise the channel bed to provide small floodplain benches where topography allows. Habitat was further improved through supplemental buffer plantings and livestock exclusion fencing. Reach BSI-D - Enhancement activities included improving habitat through supplemental buffer plantings and livestock exclusion fencing. The widening and restoration of the riparian areas along the left bank filters runoff from adjacent pasture, reduce sediment loads, and provide wildlife corridors throughout the Project area. Reach BSI-E - Restoration activities included using log structures to provide vertical stability, assist in maintaining riffle, run and pool features and to provide habitat features. Cut and fill were balanced in an effort to raise the channel bed to provide small floodplain benches where topography allows. Habitat was further improved through supplemental buffer plantings and livestock exclusion fencing. 1.6 Construction and As Built Conditions Stream construction was completed in February 2021and planting was completed in March 2021. Additionally, five -strand high tensile electric fencing was installed for cattle exclusion. The Little Sebastian Site was built to design plans and guidelines. Two minor changes were made during construction: a log sill was added on JN2-B for extra grade control and log sills were removed from BSI due to bedrock. Additionally, JN7 was added between Final Mitigation Plan approval and construction. This reach has a 30-acre drainage area and includes a pond located about 150 linear feet upstream of the easement area. Historically, this pond drained directly into JN3-B but due to the relocation of JN3-B, a channel was constructed in order to connect the pond back to JN3-B. The restored JN7 includes 37 linear feet within the easement. A photo of JN7 is in Appendix B as well as the updated NSBW maps. The record drawings are included in Appendix E. Planting plan changes included replacing blackgum (Nyssa sylvatica) and elderberry (Sambucus canadensis) with sugarberry (Celtis laevigata) and buttonbush (Cephalanthus occidentahs). These changes were based on bare root availability. A planted species summary is included in Appendix C. Minor monitoring device location changes were made during as -built installation due to site conditions. The only Little Sebastian Site 5 As -Built Baseline Monitoring Report Surry County, NC August 2021 monitoring devices not installed were the stage recorders proposed for MCI-C and BSI-C due to the reach being less than 1,000 linear feet and there being two stage recorders proposed for the same reach, respectively. 1.7 Baseline Monitoring Performance (MYO) The Little Sebastian baseline monitoring activities were performed in March 2021. All baseline monitoring data is present below and in the appendices. The Project is on track to meeting vegetation and stream interim success criteria. Ve etg ation Setup and monitoring of six fixed vegetation plots and three random vegetation plots was completed after planting and stream construction on March 17, 2021. Vegetation data are in Appendix C, associated photos are in Appendix B, and plot locations are in Appendix B. MYO monitoring data indicates that all plots are exceeding the interim success criteria of 320 planted stems per acre. Planted stem densities ranged from 647 to 1,538 planted stems per acre with a mean of 1,111 planted stems per acre across all plots. A total of 10 species were documented within the plots. Volunteer species were not noted at baseline monitoring but are expected to establish in upcoming years. The average stem height in the plots was 1.5 feet. Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. Stream Geomorphology A total of 12 cross sections were installed on March 3, 2021, and geomorphology data collection for MYO was conducted on March 16, 2021. Summary tables and cross section plots are in Appendix D. Overall the baseline cross sections and profile relatively match the proposed design. The as -built conditions show that shear stress and velocities have been reduced for the restoration reach. The reaches were designed as gravel/cobble bed channels and remain classified as gravel/cobble 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. Stream Hydrology Two stage recorders and two flow gauges were installed on March 17, 2021 and will document bankfull events and flow days, respectively. Stream hydrology data will be included in the Monitoring Year 1 Report in this section and in the appendices. Gauge locations can be found on Figure 2 and photos are in Appendix B. Wetland Hydrology Two groundwater wells with automatic recording pressure transducers were installed in March 2021. The goal of the groundwater wells is to track the hydrology of the jurisdictional wetlands on site post -stream construction. There is no hydroperiod success criteria for these groundwater wells. Wetland hydrology data will be included in the Monitoring Year 1 Report in this section and in the appendices. Gauge locations can be found on Figure 2 and photos are in Appendix B. Little Sebastian Site 6 As -Built Baseline Monitoring Report Surry County, NC August 2021 2.0 Methods Stream cross section 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 12 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 placed in PVC casing in a pool. The elevation of the bed and top of bank at each stage recorder are used to detect bankfull events. Vegetation success is being monitored at six fixed 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 plot is to be collected in locations where there are no permanent vegetation plots. Random plot 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 track the hydrology of the jurisdictional wetlands on site post -stream construction. 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. Fixed digital image locations are established at each cross section, vegetation plot, stage recorder, flow gauge, and the upstream and downstream side of each crossing. 3.0 References Griffith, G.E., J.M.Omernik, J.A. Comstock, M.P. Schafale, W.H.McNab, D.R.Lenat, T.F.MacPherson, J.B. Glover, and V.B. Shelburne. (2002). Ecoregions of North Carolina and South Carolina, (color Poster with map, descriptive text, summary tables, and photographs): Reston, Virginia, U.S. Geological Survey (map scale 1:1,500,000). 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). Little Sebastian Final Mitigation Plan. Schafale, M.P. 2012. Guide to the Natural Communities of North Carolina, Fourth Approximation. North Carolina Natural Heritage Program, Division of Parks and Recreation, NCDENR, Raleigh, NC. USACE. (2016). Wilmington District Stream and Wetland Compensatory Mitigation Update. NC: Interagency Review Team (IRT). Little Sebastian Site 7 As -Built Baseline Monitoring Report Surry County, NC August 2021 Appendix A Background Tables e - O - O - O lo - O o > - O O oo >Ic O o > - o > - o > - o > - o o O o O O - E O O o_ O o_ O o o_ = O O _ _ _ _ o - U o o o o- O o O E O o -oE -oE -oE E N N N O 0 V N > O o V N N O > O > O > lo O lo o O > O o o O > O > O > O O > O > > O > O E o > 0 -E o > O m E o o E - - - - - - - o O -o _ O 6 O -o - - O O -o _ o. O O -o O_ o - - - - - - - - - - - - - O - - - - - - - - - - O a o > - w m - w m - w m d o - in C> N U N d o - yi C> N U N - w m d o - yi C> N U N d o - yi C> N U N O C N- U N - w m - w m - w m N o N- U d - w m - w m _ C m - w m N O N- U d - w m N O N-N- U d - m _ N O U N N O U N my N Q O ¢ O � mU a 81 o X o� o > T O a` ¢ Z ¢ Z ¢ Z ¢ Z ¢ Z ¢ Z ¢ Z - - - ¢ Z ¢ Z ¢ Z - ¢ Z ¢ Z ¢ Z ¢ Z - ¢ Z - Z 0 � J o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o °o - U U U U U U U U U U U U U U U U U U U U U U U U U 0 o o oo Q 0 ¢ m U U o o ¢ m m ¢ m m U ¢ m U o ¢ m U o w w z z z z z z z z z z in in in in in in 0 a` g g g g g g g g m m m m m m Table 2. Project Activity and Reporting History Little Sebastian Elapsed Time Since grading complete: 6 months Elapsed Time Since planting complete: 5 months Number of reporting Years : 0 Activity or Deliverable Data Collection Complete Completion or Delivery Mitigation Plan NA Nov-18 Final Design — Construction Plans NA Sep-20 Stream Construction NA Feb-21 Site Planting NA Mar-21 As -built (Year 0 Monitoring — VP, XS, Hydro, Visual) Mar-21 Aug-21 Year 1 Monitoring Year 2 Monitoring Year 3 Monitoring 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 Little Sebastian Designer RES / 3600 Glenwood Ave., Suite 100, Raleigh, NC 27612 Primary project design POC Frasier Mullen, PE Construction Contractor KBS Earthwork Inc. / 5616 Coble Church Rd., Julian, NC 27283 Construction contractor POC Kory Strader Survey Contractor Acension Land Surveying, PC / 116 Williams Road, Mocksville, NC 27028 Survey contractor POC Chris Cole, PLS Planting Contractor Shenandoah Habitats Planting contractor POC David Coleman Monitoring Performers RES / 3600 Glenwood Ave, Suite 100, Raleigh, NC 27612 Monitoring POC Ryan Medric (919) 741-6268 Table 4. Project Background Information Project Name Little Sebastian County S u rry Project Area (acres) 25.91 Project Coordinates (latitude and longitude) 36.40, -80.86 Planted Acreage (Acres of Woody Stems Planted) 10.7 Project Watershed Summary Information Physiographic Province 45e - Northern Inner Piedmont River Basin Yadkin USGS Hydrologic Unit 8-digit 03040101 USGS Hydrologic Unit 14-digit 03040101080020 DWR Sub -basin 03-04-01 Project Drainage Area (Acres and Square Miles) 3,261 acres (5.1 sq mi) Project Drainage Area Percentage of Impervious Area <1 Reach Summary Information Parameters JN2-A JN2-B JN2-C JN2-D JN3-A Length of reach (linear feet) 418 187 1114 189 350 Valley confinement (Confined, moderately confined, unconfined) UC MC MC MC LIC Drainage area (Acres) 10 17 37 38 956 Perennial, Intermittent, Ephemeral I P P P P Parameters JN3-B MC1-A MC1-B MC1-C MC3-A/B/C Length of reach (linear feet) 1043 469 977 555 859 Valley confinement (Confined, moderately confined, unconfined) C UC LIC LIC LIC Drainage area (Acres) 999 1862 1915 2921 3225 Perennial, Intermittent, Ephemeral P P P P P Parameters MC3-D BS1-A/C/E BS1-B/D JN7 Length of reach (linear feet) 395 1029 352 37 Valley confinement (Confined, moderately confined, unconfined) UC C C LIC Drainage area (Acres) 3262 12-29 14-28 30 Perennial, Intermittent, Ephemeral P I/P P --- Little Sebastian Mitigation Site +v,�d w ng try •,5 L I Gideon Mitigation Site Little Sebastian Mitigath ion Site J Ile °� �rq Legend 1 r � L Conservation Easement 4 � r Proposed Gideon Site a'�tal� Service Area - 03040101 `� spy oi4on ftd TLW - 03040101080020 � a Figure 1 - Site Location Map Date: 10/30/2018 w Drawn by: MDE Little Sebastian Mitigation Site res Checked by: ATP 0 500 1,000 —10 Surry County, North Carolina Facet Appendix B Visual Assessment Data E O m in Y 3 0 w !n d O > N d C i O 9 C O C p Z C Y m— O Q) N _ C N O � ) w O C a p p Y ._ C7 m> U" O N N E E N N N O y p E E E m U° a (D .O' T J E o) °' 0] C% J p a) N 'c X C fNCCCCCn 6 6 6 6 6 �U (D a)N-o 0QO O E o a ) C OO z() LL Q (7 i - r [0 M i�l tZ PIN n 46 O In Y 3 0 w l0 dcoa� OCD d C i O z CYo mp CN CN CN C NWO CD ) C p _O C7 o Wm(D pcN o N ° N N N°Y N o) G p-6�O-p' U Cn O N ((D6 La)/ON m O EXO c) c7 a w U)Fc a w w z8 w w w a in LL Q of o �oeiiNii i�iii•®.. c qff a� _ U a C N W � c 1 M O U U L VNJ�v O C C C C C C NI2. 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O •� SU. � U �Q � a, a, o 0 0 0 0 a v o 0 0 0 0 Q O O O O O C E O O O O Q U O N r_ O .cl A O O O ' a° Z m .R -C eR .0 u E L U a) R 2 F OI R 2 F U U 0 iq m = N d p` CL an d p` E C C7 ME a a U) U C O d d Q R In E F O O N O R N _ U C R T � � 0 U N O E U) a) O v 2 E N O U >` U) � N N Q 7 O O 7 U -2R N > m d (U y a) t 6 R o) O N (U U U ) N O t R a) U) o Q U N y E � o N T > O m U O U O C O a) d T t • O R 0 > Q O O) O a) R v Q � 0 O C (� a) R N W O U E a O Q . (n O R W v 3 J O) a) m Q i N M c a, O E R o 0 v o U) U O O O d W Q C W Q O O O O O U O N C O O O E ' E o Z d O E U .2 0- � U to m U w r O _ 0 C) C O t O LL U o C N R O O t F 0 0 Q a) E 0 Ul C O Q 0 Q a) E 0 Ul C O Q w N a C N o m E O O w N a C N O m w O O O ul C 0 O ul C Q O C W 0 w N Q w N Q C w a) Q C 0 a) U C O U a) E � O O U w O C W a) w w � m R w i v ui Y � = Lu °w C w C — C C (WD T O O (p U E.0 0 9 C O N Y a) OU (U6 0 Q O O (D 3 0 M O MyMA�.>.�'u,� a) C N Ul E E N U 5 Q E 9 R a) 3: (6 ° W C O= N O C C U CO N 9 0 m (6 p N E ° L L a) O 9� 0 a)�, N °' U Y N L> >` a% L C U O Y� O p y CW O> Ul m C 0 O Q O y .0 Q C O O a) u, o �opE�39y N Y.�'C a) _ w C E M ° �aEa oL QC°�n a°ooa C N N 9 a a) a° > O a) a) C N — Ul N 0 a) N N V t/) 2 X m E M o 9- M m o a) �.� a) Qy WW aa)i Eo maQ) o C Q aai E-- mmN'cEa.O ° o a) a) a E o °� O m C X M E `p � L U o 0 0 W° E~°°> a) 0 o N- o a ._ o a) a) a i• U m 9 W a) L O D U -O o (D a°i 5 > U L Oo a) E C_ a) a) Y a) a) O C L U oCu,�Eoa)�Qo Y > E U O a N E Ul '� ) 9 w a) . a Y m° a U a ` C M.- a) C C o o0 E N Y U o E mu; o u, 0 0 U E> o o. N a) a) a) . f/) M O a a) fl- O m O a)Ea) -Q Q09 t/) M Or.,L..oE.�o0 E a> oa)oa a)o ma) O N 3 N N a) L 9 .0 a) 2 T� 8 a) a) M aa)) E 'X a) a) "' C LLU 9 E C O > S a) a) p)r a)0 C p9 o.u,.. M > m O° E y0 a) w a w.�L E a).-= E C O LO a) L — T a) a) 'E E a) O a) 2 o _ O C C a) L O O y L -EO N a) U a)- T w +' O 0 y O O O C a) 0 m m 9 C .U5 m- - C O C C a) a a) O a) -2C O O a° a) C O a) E O C a) T Q a) w O U C a) U a3 a) O +' 9 M E a) w a5 °- Y E C L L 0 w a) °M a)m- �Ua) o) p) - -p C o E a) U C L -O"YY M Q3: a) M ° M 2 a) O C C a a a) Ul C a) C a) O p a) O a5 O� U5 E =M a)L°-°)9aTia 5 0 � N Q a) Y L T'� 9 U N 0 a a) O T U .wn C y C Y .� C C (6 O` Ul a) O M a) C W C 0- °)'U m °' E a) Q5 o Q p Q L o E 0 o M.w L Q„ 0Laa)00 E 5 a) ° j M C O 't/) 9 y 0 Ul p E a) a) N O U C ° y a) t/) 0 N a) a) N a) E m 'U > O a) m O O— C .> a p) a)'p) >i Q U5 p 0 O a) (06 N- M L L L� °a�oioc°)o 0Lm E °)a) C Q m O E ON Y O U N 0 9 O UL° a) a) O N a Y O a O f/) a) y (D a) L T L m 0 C > O O T a) Z - �- 3: L a) a a C -EE f/) U U m 9 ( a) a) y 0 9 > w C _ O° °- OU L 0 0 t0/) a) o o a) Maa a) u, QQo o mu E o N (D a a) a) N U a) a) a) O a) a) L O Y 41 O N U5 O C 9 N a) rn O .N Llj o H W � C Q N N M -o M a O 9 ii T ii ii ii a)�ap�oE�E a) N co m V w Q O� s RM s RM . .71 \ \ *4 9 9 Appendix C Vegetation Plot Data Appendix C. Vegetation Plot Data Table 7. Planted Species Summary Common Name Scientific Name Mit Plan % As -Built % Total Stems Planted Willow Oak Quercus phellos 15 15 1,600 River Birch Betula nigra 15 15 1,600 Sycamore Platanus occidentalis 10 15 1,600 Water Oak Quercus nigra 15 14 1,600 Northern Red Oak Quercus rubra 10 11 1,200 Yellow Poplar Liriodendron tulipifera 10 10 1,100 Green Ash Fraxinus pennsylvanica 10 5 600 Persimmon Diospyros virginiana 5 5 600 Buttonbush Cephalanthus occidentalis 0 5 600 Sugarberry Celtis laevigata 0 5 600 Elderberry Sambucus canadensis 5 0 0 N ssa s lvatica Blackgum 5 0 0 Total 11,100 Planted Area 10.7 As -built Planted Stems/Acre 1,037 Table 8. Vegetation Plot Mitigation Success Summary Plot # Planted Stems/Acre Volunteer Stems/Acre Total Stems/Acre Success Criteria Met? Averaged Planted Stem Height (ft) 1 931 0 931 Yes 1.5 2 1335 0 1335 Yes 1.3 3 1133 0 1133 Yes 1.8 4 1214 0 1214 Yes 1.8 5 647 0 647 Yes 1.4 6 1052 0 1052 Yes 1.5 RI 1012 0 1012 Yes 1.5 R2 1133 0 1133 Yes 1.6 R3 1538 0 1538 Yes 1.4 Project Avg 1111 0 1111 Yes 1.5 N = Vml M Vml ^ C N C O 1 N O rl O 3 Q a in JO a co a ri �o n N m rl m m N N m n N M n N o 77 M OC F G M M .y M N N A M O Vl N M rl M M C I� N A o d O Vf a M O N M N M rl M M C 77 N K i f G N rl N rl N C V1 I� W N N O� M � N A M N rl N rl N C V1 I� N d O O O Vf a W N O O� `i N rl N rl N C V1 I� OC F G N N O N N N W M V1 I� N o d O O V O a N N O N N O W M V1 I� N O O O ~ ' Vl rl N rl � N N n� N N W N Vl O N� VN1 V1 rl N rl � N N n ^ N 0 o a O N, O O O � a N O W N O V1 rl N rl N N n N O a N O ~ N rl M rl N N M N 7 77 � � N N rl M rl N N M N O - O O y ~ a ` V a O N [O M C I O M n C N O F O O — O N n77 O N N [O M C rl o a o N, O a O M O n C N N [O M C ;: M O O ~ N ti o a O O � a O O O F O G _ m m N O M N a O J O O O a M M O I� N M M N rl C [O �O O O ~ m N 7 77 M � o a o O � a O f w Oo V Oo Q y y a w w w 9 w w w w w w w _ a£ w £ o 9 E v o a Nf w o £ o V s 9 w N m > n o o E E o o o o L w .'., 0 Q 3 v 3 L 3 0cl 70 w £ w a - v - > w ._ — Z _ o ° v - w 0° > o v o n a m o - ° 9 ° w m u w o 0 o LL- .. v a O' v v O' u' Appendix D Stream Measurement and Geomorphology Data o !@:I: ]:::::::: ;:2;r ƒ �� 1. �2 wo o 181NNN! 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