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HomeMy WebLinkAbout20160233 Ver 1_TarRiverHeadwaters_97071_MY6_2022_20230104ID#* 20160233 Select Reviewer: Ryan Hamilton Initial Review Completed Date 01/18/2023 Mitigation Project Submittal - 1/4/2023 Version* 1 Is this a Prospectus, Technical Proposal or a New Site?* Type of Mitigation Project:* Stream Wetlands Buffer Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Lindsay Crocker Project Information O Yes O No Email Address:* lindsay.crocker@ncdenr.gov ID#:* 20160233 Version:* 1 Existing ID# Existing Version Project Type: • DMS Mitigation Bank Project Name: Tar River Headwaters Wetland restoration Site County: Person Document Information Mitigation Document Type:* Mitigation Monitoring Report File Upload: TarRiverHeadwaters_97071_MY6_2022.pdf 7.81 MB Please upload only one PDF of the complete file that needs to be submitted... Signature Print Name: * Lindsay Crocker Signature: * Tar River Headwaters Wetland Restoration Site Person County NC -- Tar-Pamlico River HUC# 03020101-0102 MY-6 (2022) Annual Fall Monitoring Report NC-DEQ Division of Mitigation Services: DMS Project # 97071 DEQ Contract #6746 DWR # 2016-0233 ACE #SAW-2016-01101 Data Collected: Sep-Nov 2022 Draft Report: December 2022 Submitted To: N.C. Department of Environmental Quality DEQ Division of Mitigation Services 1652 Mail Service Ctr, Raleigh, NC 27699-1652 ---------------------------------------------------------------------------------------- DMS Project Manager: Lindsay Crocker DEQ-DMS Contract # 006746 MOGENSEN MITIGATION, INC. P.O. Box 690429 Charlotte, NC 28227 (704) 576-1111 Rich@MogMit.com (919) 556-8845 Gerald@MogMit.com Table of Contents 1.0. Project Background Summary ............................................................................................................. 3 1.1. Project Location and Setting ..................................................................................................... 3 1.2. Pre-Restoration Conditions ....................................................................................................... 3 1.3. Mitigation Goals and Performance Criteria .............................................................................. 3 1.4. Mitigation Approach ................................................................................................................. 5 2.0. Monitoring Methods ............................................................................................................................ 5 3.0. Current Conditions Summary .............................................................................................................. 6 4.0. References ............................................................................................................................................ 7 APPENDIX A. Project Background Data Figure 1. Project Vicinity Map Table 1. Project Components and Mitigation Credits Table 2. Project Activity and Reporting History Table 3. Project Contacts Table Table 4. Project Attributes APPENDIX B. Visual Assessment Data Figure 2A. Current Conditions Plan View Figure 2B. Temporary Strip Plots, May 2021 Table 5. Vegetation Conditions Assessment Figure 3. Vegetation Plot Photos Figure 4. Photo Point Photos APPENDIX C. Vegetation Plot Data Table 6. Vegetation Plot Success Summary Table 7. Vegetation Plot Stem Count Data APPENDIX D. Hydrologic Data Figure 5. Monthly Rainfall Plot with Percentiles Figure 6. Groundwater Gauge and Rainfall Data Table 8. Hydrologic Success Attainment 2 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI 1.1. Project Location and Setting The Tar River Headwaters Wetland Restoration Site (TRHWR) is a full-delivery wetland mitigation project located in eastern Person County, between Roxboro and Oxford, North Carolina, within the Piedmont Physiographic Province (Figure 1). The easement comprises 9.98 acres, most of which was drained and degraded wetlands or former wetlands with hydric soil indicators. The remaining areas include non-hydric soils, drainage ditches, and a 570-foot long riparian corridor along a ditch and intermittent stream connecting the TRHWR site to the adjacent Tar River Headwaters Riparian Buffer and Nutrient Offset Mitigation Bank project. Both projects are implemented by Mogensen Mitigation, Inc. (MMI), and are located on a 228-acre farm owned by Roy and Joyce Huff, in the Tar-Pamlico River Basin 12-digit HUC # 03020101-0102. The Huff Farm property is located at 333 Bunnie Huff Road, Oxford NC 27565. The access road into the TRHWR site is at Latitude = 36.3913, Longitude = -78.8171. 1.2. Pre-Restoration Conditions The TRHWR site was cleared and ditched for pasture use in the 1940s according to the owner, and was used for grazing cattle until January 2017 when the conservation easement fence was installed. The project involved plugging drainage ditches to restore wetland hydrology, fencing to exclude livestock, and planting native trees and shrubs to restore a Headwater Forest wetland ecosystem similar to what occurred prior to site clearing and drainage. Remnant native trees left for shade, hydrophytic groundcover plants mixed among the pasture grasses, and plant species recorded in adjacent natural forests (on the same soil mapping unit) provided data for the planting plan. The project will restore approximately 7.65 acres of headwater riparian wetland (6.53 acres reestablishment plus 1.12 acres rehabilitation) and will generate an estimated 7.28 or more riparian wetland mitigation credits. Approximately 1.27 acres with non-hydric soils in the southeast corner of the mitigation site will also be reforested, and a 100-foot wide by 570-ft long riparian corridor (1.06 acre) extending southeastward along the ditch will connect the TRHWR site to stream restoration and nutrient buffer bank project to the south. Total acreage of the wetland mitigation site and riparian connector is 9.98 acres. Restoration activities including tree planting, surface flow dispersal, and cattle exclusion has reducedsoil erosion and nutrient-enriched runoff from adjacent pasture and cropland within its watershed, and helped retain agricultural chemicals used on these lands. It is expected to improve water quality and habitat in the receiving tributary and reduce fine sediment loading which will enhance the overall watershed, particularly in the adjacent stream and nutrient mitigation bank and downstream. 1.3. Mitigation Goals and Performance Criteria The subject watershed HUC #03020101-0102 is designated by NCDEQ as a Targeted Local Watershed (TLW) for water quality improvement projects, and the Tar River reach within and downstream of this local HUC is recognized as a Significant Natural Heritage Area (SNHA) for its high diversity of aquatic life including protected species of river mussels and fishes. The TRHWR project is intended to support 3 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI these TLW and SNHA designations by improving water quality and habitat on the property and downstream. Specific project goals and objectives as identified in the TRHWR Final Mitigation Plan (December 2016) include: GOALS: Restore the natural jurisdictional wetland hydro-period to five or more acres of forested wetland within a nine-acre site; Restore forested wetland habitat and improve habitat connectivity between Denny Store Gabbro Forest (NHP Natural Heritage Area) to the north and the Tar River tributaries; Buffer storm water runoff from fecal and other cattle-related pollutants and fertilizer. OBJECTIVES: Plug existing ditches and create sheet flows throughout the site. Aerate soils to reduce compaction, improve infiltration, and create micro-topography to retain surface flows; Preserve the remnant mature Swamp White Oaks (a regionally rare species) for seed source. Plant appropriate native hardwood trees at a sufficient frequency to establish a diverse bottomland wetland forest. Treat and/or remove invasive species which may cause problems for site restoration, including Chinese privet and multi-flora rose; I nstall fencing to exclude cattle and establish a conservation easement to provide permanent protection on the site. PERFORMANCE STANDARDS and MONITORING: GOAL OBJECTIVE PERFORMANCE MONITORING STANDARD APPROACH Restore natural Plug existing ditches and Water must be on or Use 11 shallow hydro-period for create sheet flow throughout within 12 inches of the groundwater self-reading headwater forest the site. Aerate soils to reduce surface for 10% of the gauges throughout the site wetland. compaction, improve growing season. at a frequency of about one infiltration, and create micro-Hydrographs will per acre. Visual inspection topography to retain surface indicate jurisdictional of ponding duration. flows. hydrology. Restore forested Preserve mature swamp white Survival of 320 stems Monitor vegetation plots wetland habitat and oak trees for seed source. Plant per acre at year 3, 260 annually and calculate improve habitat appropriate native hardwood stems per acre at year 5 densities of surviving connectivity with trees at 10-ft average spacing and 210 stems per acre planted & volunteer stems. existing forests. (435 stems/ac) Treat invasive at MY 7. species. Buffer storm water Plant trees, fence perimeter Insure the integrity of Visual inspection will note runoff from fecal and and establish a permanent the cattle exclusion fence condition through site other cattle-related conservation easement. fencing for the life of the pictures. Observations will nutrient inputs. contract. be included in annual monitoring reports. 4 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI 1.4. Mitigation Approach Prior to restoration, the TRHWR project area contained 6.53 acres of former riparian wetland (ditched and drained, grazed pasture) with redoximorphic soil characteristics indicating hydric soils, but lacking adequate wetland hydrology based on groundwater gauge data and field observations during 2015-2016. Although the drainage ditches are shallow, they have effectively reduced water retention across much of the site over the past 70 years due to the slow infiltration rate, rapid runoff, and shallow hardpan in these soils. The project will re-establish jurisdictional wetlands in this area by plugging the drainage ditches to increase rainfall retention and dispersal, fencing out livestock, controlling invasive species, and planting suitable native tree species. These 6.53 acres of wetland restoration will generate riparian wetland credits at 1:1 ratio, yielding 6.53 WMU. Another 1.12 acres in the TRHWR project area has been less effectively drained by the ditches, and still has sufficient hydrology to meet jurisdictional wetland criteria, based on groundwater gauge data and field observations during 2015-2016. The project will rehabilitate these areas of degraded jurisdictional wetland (grazed pasture with reduced hydrology) by plugging ditches to increase hydrology, fencing out livestock, and planting suitable native tree species. These 1.12 acres of wetland rehabilitation will generate riparian wetland credits at 1.5:1 ratio, yielding 0.75 WMU. TRHWR project components and mitigations assetsare summarized in Table 1, matching the proposed assets in the Mitigation Plan. Vegetation plots are monitored annually in accordance with current DMS monitoring guidance (June 2017). The nine installed CVS vegetation plots, each 10 x 10 meters, represents 2.8 percent of the planted mitigation area. Vegetation monitoring will occur between September and early November, prior to the loss of leaves. The vegetation success criteria are specified in the Performance Standards above. If success criteria are not met, site maintenance and monitoring will continue until the success criteria are met. The twelve onsite groundwater monitoring gauges (RDS and Hobo) and one offsite reference wetland gauge are downloaded and maintained at least quarterly. Gauge data in the mitigation credit areas are plotted and evaluated for success based on the mitigation plan performance standard of continuous saturation within 12 inches of the ground surface for 10 percent of the growing season. Growing season based on air temperature at a weather station east of Roxboro is from March 28 to November 3, which is 221 days (from USDA WETS table). MMI installed a Hobo dual-probe soil temperature logger near the middle of the TRHWR site (beside GW-H) in late January 2017. Soil temperature on the site remained above 41 F at both 10-inch and 20-inch depths throughout February and March 2017. The lowest temperatures recorded were 42.7 F at 10 inches and 45.4 F at 20 inches. Based on soil temperatures remaining above the USDA-designated temperature for plant physiological activity, March 1 is used as the start of the growing season, based on field discussions with DMS and USACE. The revised growing season length is thus 248 days, and the groundwater hydrology success criterion is 25 days. Subsequent data from 2018 to 2021 confirm that soil temperature has remained above 42 F after the end of February each year. These data along with late-February bud swelling on Acer, Betula, and Salix, plus new growth of groundcover plants (Lamium, Cardamine, Lactuca, Allium, Bromus, Alopecurus, Ranunculus, Senecio, Geranium, Plantago, Viola, and Persicaria) support the use of March 1 as the growing season start date. 5 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI The conservation easement perimeter fence and ditch plug integrity have been monitored visually and documented with photo points. Groundwater gauge data for 2022 were collected from January 1 through August 20 when several data loggers were removed for shipment to the manufacturer for battery replacement. CVS vegetation plot data and photos were collected in mid-September. MMI scientists made several visits to the TRHWR site between February and September 2022 to collect gauge data and evaluate the condition of the ditches, ditch plugs, and planted and volunteer trees. All nine CVS plots had 6 or more surviving planted trees and exceeded the 210 stems per acre success criteria for MY-6 based on planted stems alone (Tables 6 and 7). The average density across all nine plots was 355 planted stems per acre and 549 total stems (including volunteers) per acre. Outside of the CVS plots, planted stem survival is generally good throughout the site, with an estimated 20 percent mortality since the original planting. Leader die-back is common on many of the taller saplings, especially on tulip poplar, river birch, and musclewood, but many of the trees exhibiting leader die-back also have vigorous basal sprouts. Small unflagged trees outside of the CVS plots, especially resprouted trees, remain difficult to see in summer and fall due to the dense native groundcover. Two temporary strip plots (100 m2 each) were sampled in August 2022 in the areas identified in 2021 that appeared to have low woody stem density. A measuring tape was extended to 108 feet and pinned to stakes at each end, and live stems of planted woody species within 5 feet on each side the tape were counted (Figure 2B). Both strip plots yielded 7 stems of planted tree species (283 stems per acre) and exceed the MY6 stem density criterion for success. Consequently, there is no stem area mapped for 2022 in Figure 2A. The dense, sticky Iredell clay loam soil on the site is challenging for trees to get established. Undisturbed headwater flats with Iredell soil often support Piedmont prairie relatively open tree canopy compared with other Piedmont natural forest communities. Several of the rare plant communities with an open canopy recognized by the NC Natural Heritage Program occur on headwater flats with Iredell soils. Natural plants on the project site that suggest a historic sparse canopy include milkweeds (Asclepias purpurascens and A. incarnata), mistflower (Conoclinum coelestinum), sneezeweed (Helenium autumnale), Carolina rose (Rosa carolina), mountain mint (Pycnanthemum spp), skullcap (Scutellaria spp), Lobelia (Lobelia spp), and swamp white oak (Quercus bicolor). The slow growth rates of planted trees on this project site is likely a natural feature of the native soil. A few isolated plants of Multiflora rose, Chinese privet, and Callery pear were treated.in 2020 and 2021, and no problem areas were identified in September 2022. Groundcover vegetation is dense and diverse throughout the site, in both the treated areas (non-wetland and drained wetland) and non- treated areas (existing wetland). Exotic grasses including fescue (Lolium) and carpet grass (Arthraxon) are abundant in some areas, but have not been treated. All ditch plugs appear to be stable and performing as designed. Survival of planted trees, live-stakes, and herbaceous cover on the plug slopes and tops appears to be providing good protection; no erosion on the plugs was observed. Most of the ditches are now obscured by vegetation. Ponding behind each ditch plug was evident in spring, but the ditches were mostly dry during summer and fall 2022. Ten active groundwater gauges (A through L) on the project site are roughly arranged in four transects perpendicular to the main ditch, as recommended by mitigation plan reviewers during field meetings (Figure 2). Three gauges (A, H and J) are within existing wetland rehabilitation areas, and seven gauges (D, E, F, G, I, L, and K) are within the drained wetland reestablishment areas. Two additional gauges (B and C) are south of the lowermost ditch plug in an area that is not intended to generate wetland credits. These two gauges were monitored from 2016 until 2021 but are no longer monitored as they do not pertain to the project success criteria. Wetland hydrology success for the TRHWR site is based on saturation within 12 inches of the ground surface for 10% of the 248-day growing season (March 1 to November 3). The gauges measure the free water table depth and do not account for capillary fringe saturation which can extend above the free water table in fine-textured soils (https://vernonjames.ces.ncsu.edu/eleventh-annual- on-site/soil-wetness/). Manual water table measurements were also collected at each well one or more times during the year, and depth data were adjusted accordingly to fit the actual measurements. th Rainfall in 2022, relative to the 30-year normal values (1981 to 2010), was above the 70 percentile during thth January and May, below the 70 normal and th 70 percentiles during all other months through October. All 11 gauges (ten in the mitigation credit area, and one off-site reference gauge) exceeded the minimum of 25 consecutive days for hydrologic success during the early part of the growing season, with consecutive day saturation periods ranging from 44to 93 days (Table 8). The soil temperature gauge and temperatures in the groundwater monitoring wells all indicate that soil temperatures remained above 41 F after February 28, 2022, which supports the accepted growing season start date of March 1. Lee, Michael T., Peet, Robert K., Roberts, Steven D., Wentworth, Thomas R. (2008). CVS-EEP Protocol for Recording Vegetation version 4.2, October 2008. Retrieved September 2011, from: http://cvs.bio.unc.edu/methods.htm LeGrand, Harry E. Jr. (2007) Natural Areas Inventory of Person County, NC. NC Natural Heritage Program, Raleigh NC. NC Division of Mitigation Services. (2017). NC-DMS Annual Monitoring Report Format, Data Requirements, and Content Guidance, June 2017. http://portal.ncdenr.org/web/eep/dbb-resources Schafale, M.P., Weakley, A.S. 1990. Classification of the Natural Communities of North Carolina, Third Approximation. NC Natural Heritage Program, Raleigh, NC. Sink, Larry T. (1995). Soil Survey of Person County, North Carolina. USDA Soil Conservation Service (Natural Resources Conservation Service), Raleigh, NC. United States Department of Agriculture, Natural Resources Conservation Service, 2016. Web Soil Survey. Available: http://websoilsurvey.nrcs.usda.gov/app/ 7 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI APPENDIX A. Project Background Data ----------------------------------------------------------------------------------------------- Figure 1. Project Vicinity Map Table 1. Project Components and Mitigation Credits Table 2. Project Activity and Reporting History Table 3. Project Contacts Table Table 4. Project Attributes 8 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI 9 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI (acres) Upland Offset Buffer 6.530 ac1.120 ac ct # 97071 Nutrient(sq. feet) Restoration Footage or Acreage MY-6 (2022) Annual Monitoring Report Mogensen Mitigation Inc. MMI lish) Riparian - Buffer Equivalent Restoration Non Restoration or R (Reestab R (Rehabilitate) Wetland (acres) RE riparian Riverine - - 7.277 6.530 ac1.120 ac 7.650 ac Wetland Approach (PI, PII etc.) Non Fence & PlantFence & Plant Non 10 R Restore Hydrology, (acres) Mitigation Credits Project Components RE ne Component Summation Riparian Wetland -- 7.2776.5301.120 Tar River Headwaters Wetland Restoration Site, DMS Proje ExistingAcreage WetlandRiveri Riparian Footage or -- R 7.6507.270 RE -- ---- StreamStream Location (lin. feet) Stationing/ R Mitigation Credits (1: 1.0) (1: 1.5) Wetland ect Component or Reach ID Grazed Wetland Drained Restoration Level Proj establishment - Tar River Headwaters Wetland Restoration Site #97071 Person County – Tar-Pam HUC 03020101 Table 1. Project Components and Type AcresCredits TOTAL CREDITS ReRehabilitation Enhancement I Enhancement II Creation Preservation High Quality Preservation TOTAL feet or acresTOTAL WMU Table 2. Project Activity & Reporting History Tar River Headwaters Wetland Restoration Site, DMS Project# 97071 Data Collection Actual Completion Activity or Report Complete or Delivery Mitigation Plan Dec 2016 Final Construction Plans Dec 2016 Construction Jan 2017 Planting Feb 2017 Baseline Monitoring/Report Feb 2017 Apr 2017 Year 1 Monitoring Nov 2017 Dec 2017 Year 2 Monitoring Nov 2018 Dec 2018 Year 3 Monitoring Nov 2019 Jan 2020 Year 4 Monitoring Nov 2020 Dec 2020 Year 5 Monitoring Oct 2021 Nov 2021 Year 6 Monitoring Nov 2022 Dec 2022 Year 7 Monitoring Table 3. Project Contacts Table Tar River Headwaters Wetland Restoration Site, DMS Project # 97071 Ecological Engineering, Raleigh NC Designer Heather Smith: 919-557-0929 KBS Earthworks, Greensboro NC Construction Contractor Kory Strader & Brett Strader: 336-685-4339 Michael T. Brandon, PLS, Roxboro NC Survey Contractor Michael Brandon: 336-597-8673 Strader Fencing, Inc., Julian NC Fence Contractor Kenneth Strader: 336-314-2935 KBS Earthworks, Greensboro NC Herbicide and Seeding Kory Strader & Brett Strader: 336-685-4339 Mogensen Mitigation Inc, Charlotte NC Planting Contractor Rich Mogensen: 704-576-1111; Gerald Pottern: 919-556-8845 Mellowmarsh Farms, Siler City NC Nursery Stock Suppliers Joanie McLean: 919-742-1200 Mogensen Mitigation Inc, Charlotte NC Monitoring Performers Rich Mogensen: 704-576-1111; Gerald Pottern: 919-556-8845 11 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI Table 4. Project Attributes Tar River Headwaters Wetland Restoration Site, DMS Project # 97071 Project Name Tar River Headwaters Wetland Restoration Site County Person County Project Area (acres) 9.9 acres (Wetland + Buffer Easement combined) Project Coordinates (lat. and long.) 36.3895, -78.8153 Project Watershed Summary Information Physiographic Province Piedmont, Carolina Slate Belt River Basin Tar-Pamlico River-01 USGS Hydrologic Unit 8-digit and 12-digit: 03020101-0102 DWQ Sub-basin Tar-Pam-01 Project Drainage Area (acres) 60 Project Drainage Area Percent Impervious Area 0% CGIA Land Use Classification Pasture, Crop, and Deciduous Forest Wetland Summary Information (Post-Restoration) Wetland Area Parameters Size of Wetland (acres) 1.12 ac existing + 6.53 ac drained = 7.65 ac Wetland Type (non-riparian, riparian riverine or Riparian non-riverine (Headwater) riparian non-riverine) Mapped Soil Series Iredell Loam (IrB) Drainage class Iredell = moderately well; Hydric inclusions = poorly Soil Hydric Status Drained Hydric Source of Hydrology Shallow ponding; perched on shallow aquitard Hydrologic Impairment Drainage ditches (1940s) Native vegetation community Headwater depression wetland forest (prior to pasture conversion) Percent composition exotic invasive vegetation 20% Fescue (sprayed) Regulatory Considerations Supporting Regulation Applicable? Resolved? Documentation Waters of the United States Section 404 Yes Yes Prelim JD Waters of the United States Section 401 Yes Yes Prelim JD Endangered Species Act No N/A US FWS Letter Historic Preservation Act No N/A NC SHPO Letter Coastal Zone Management Act (CZMA) No N/A N/A Coastal Area Management Act (CAMA) FEMA Floodplain Compliance No N/A NC Floodmaps Data Essential Fisheries Habitat No N/A N/A 12 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI APPENDIX B. Visual Assessment Data ------------------------------------------------------------------------------------------------- Figure 2A. Current Conditions Plan View Figure 2B. Temporary Strip Plots, May 2021 Table 5. Vegetation Conditions Assessment Figure 3. Vegetation Plot Photos Figure 4. Photo Point Photos 13 Tar River Headwaters Wetland Restoration Site #97071 MY-6 (2022) Annual Monitoring Report Person County – Tar-Pam HUC 03020101 Mogensen Mitigation Inc. MMI MY-6 (2022) Annual Monitoring Report Mogensen Mitigation Inc. MMI 14 . 6 - , MY 2 t Conditions Plan View, Fall 202 Tar River Headwaters Wetland Restoration Site #97071 Person County – Tar-Pam HUC 03020101 Figure 2A. Curren MY-6 (2022) Annual Monitoring Report Mogensen Mitigation Inc. MMI 15 . August 2022 Tar River Headwaters Wetland Restoration Site #97071 Person County – Tar-Pam HUC 03020101 Figure 2B. Temporary Vegetation Strip Plots, % % 0%00%0%0% 00% % of % of Planted AcreageAcreage Easement 000000 AcreageAcreage Combined Combined 00 0 0000 of of Number Number PolygonsPolygons MY-6 (2022) Annual Monitoring Report Mogensen Mitigation Inc. MMI Total N/AN/AN/AN/AN/A CCPV CCPV Depiction Depiction 0102 - Cumulative Total 0.100.100.25 (SF) none 1000 (acres) Mapping Mapping Threshold Threshold 16 nitoring ) 2 (202 6 - MY -- DefinitionsDefinitions points (if too small to render as 7.65 Very limited cover of both woody and herbaceous materialWoody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria.Areas with woody stems of a size class that are obviously small given the moyear. 9.98 Areas or points (if too small to render as polygons at map scale).Areas or polygons at map scale). oncern Headwaters Wetland Restoration #97071. Person County HUC #03020101 Poor Growth Rates or m Density Areas ed Acreage = Vegetation Problem CategoryVegetation Problem Category Tar River Headwaters Wetland Restoration Site #97071 Person County – Tar-Pam HUC 03020101 Table 5: Vegetation Condition Assessment Table Tar River PlantBare AreasLow SteAreas of Vigor * Easement Acreage =Invasive Areas of CEasement Encroachment Areas CVS VegPlot-20: MY-6 20 Aug 2022CVS VegPlot-21: MY-6 20 Aug 2022 Figure 3. Vegetation Plots: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 CVS VegPlot-20: MY-0 Spring 2017CVS VegPlot-21: MY-0 Spring 2017 CVS VegPlot-22: MY-6 20 Aug 2022CVS VegPlot-23: MY-6 20 Aug 2022 Figure 3. Vegetation Plots: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 CVS VegPlot-22: MY-0 Spring 2017CVS VegPlot-23: MY-0 Spring 2017 CVS VegPlot-25: MY-6 20 Aug 2022 Figure 3. Vegetation Plots: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 CVS VegPlot-24: MY-0 Spring 2017CVS VegPlot-25: MY-0 Spring 2017 CVS VegPlot-26: MY-6 20 Aug 2022CVS VegPlot-27: MY-6 20 Aug 2022 Figure 3. Vegetation Plots: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 CVS VegPlot-26: MY-0 Spring 2017CVS VegPlot-27: MY-0 Spring 2017 CVS VegPlot-28: MY-6 20 Aug 2022 Figure 3. Vegetation Plots: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 CVS VegPlot-28: MY-0 Spring 2017 Photo Point 1: MY-6 20 Aug 2022Photo Point 2: MY-6 20 Aug 2022 Figure 4. Photo Points: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 Photo Point 1: MY-0 Spring 2017Photo Point 2: MY-0 Spring 2017 Photo Point 3-East: MY-6 20 Aug 2022 Photo Point 3-North: MY-6 20 Aug 2022 Figure 4. Photo Points: Tar River Headwaters Wetland Restoration Site #97071 MY-6 Fall 2022 Photo Point 3-East: MY-0 Spring 2017 Photo Point 3-North: MY-0 Spring 2017 APPENDIX C. Vegetation Plot Data ------------------------------------------------------------------------------------------------- Table 6. Vegetation Plot Success Summary Table 7. Vegetation Plot Stem Count Data Tar River Headwaters Wetland Restoration (TRHWR) Project, DMS # 97071. Monitoring Year 6 (Sept 2022) -- Person County NC. Tar-Pam HUC# 03020101 Table 6. CVS Plot Stem Density and Success Summary Planted + Volunteer Invasive Success Wetland Planted Stems Stems CVS Plot # Woody Criteria Stems Met? per plot per acre per plot per acre 97071- 20 9 364 13 526 0 Yes 97071- 21 6 243 15 607 0 Yes 97071- 22 8 324 16 648 0 Yes 97071- 23 12 486 20 809 0 Yes 97071- 24 7 283 11 445 0 Yes 97071- 25 9 364 10 405 0 Yes 97071- 26 9 364 11 445 0 Yes 97071- 27 9 364 11 445 0 Yes 97071- 28 10 405 15 607 0 Yes Total All Plots 79 122 0 Project Avg 8.8 355 13.6 549 0 Yes Success Criteria = 320 planted + volunteer stems per acre at MY3, 260 planted + volunteer stems at MY5, and 210 planted + volunteer stems per acre at MY7 (planted species only). Color codes for Success MY6 to MY7 Exceeds criteria by 10% or more (232 or more) Exceeds criteria by less than 10% (210 - 231) Fails criteria by less than 10% (189 - 209) Fails criteria by more than 10% (188 or less) APPENDIX D. Hydrologic Data -------------------------------------------------------------------------------------------------------------------------------------- Figure 5. Monthly Rainfall Plot with Percentiles Figure 6. Groundwater Gauge and Rainfall Data Table 8. Hydrologic Success Attainment thth Figure 5. Monthly Rainfall Totals in 2022,with 30, 50, and 70th normal percentiles. 30-year historical data (1981-2010) at ROXBORO 7 ESE Gauge # 317516 from NC State Climate Office 30-year Climate Normal precipitation Month 2022 Precip 30th % 50th % 70th % 4.93 Jan-22 2.45 3.81 4.46 2.95 Feb-22 2.58 3.33 3.82 4.40 Mar-22 2.99 4.45 5.32 Apr-22 2.71 2.18 3.34 4.21 May-22 5.34 2.51 3.35 4.04 Jun-22 1.13 2.15 3.84 4.45 July-22 4.78 3.38 4.57 5.44 Aug-22 4.50 2.57 3.89 4.90 Sep-22 0.84 1.94 3.91 4.85 Oct-22 4.19 2.65 3.72 4.72 Nov-22 1.89 3.46 4.42 Dec-22 2.56 3.71 4.52 Annual Ave 45.38 TRH Wetland Restoration Site 2022 Monthly Rainfall and 30-yr Percentiles 6.00 5.00 4.00 3.00 2.00 Precipitation (Inches) 1.00 0.00 JanFebMarAprMayJunJulAugSepOctNovDec Rainfall 2022 Rainfall 202030th Percentile70th Percentile Table 8. Hydrologic Success Attainment 2016 - 2022, Groundwater Wells Tar River Headwaters Wetland Mitigation Site # 97071. Maximum Consecutive Days in Growing Season with Water Table above -12.0 inches 2016 MY02017 MY12018 MY22019 MY3 WELL startenddays% GSstartenddays% GSstartenddays% GSstartenddays% GS A 4/275/2731124/235/1624103/15/465263/14/33414 B *4/285/91254/235/1624103/16/799403/15/16225 C *6/237/111984/235/2129123/15/1475303/14/245522 D 4/275/162083/134/1130123/15/1273293/14/306125 E 4/236/241174/245/1724103/15/364263/14/306125 F 3/13/202083/314/101143/15/364263/14/255623 G 4/275/151983/314/131463/15/970283/14/285924 H 3/14/738154/235/1725103/16/9101413/15/46526 I 4/225/122184/235/2028113/15/364263/14/245522 J 4/285/161985/226/21253/15/1273293/15/16225 K 4/275/111563/314/101143/15/263253/14/255623 L nananana3/16/10102413/16/15107433/15/16225 Ref 4/16/1475303/16/9101413/15/1475303/15/147530 Groundwater Gauges -- Maximum Consecutive Days in Growing Season with Water Table above -12.0 inches 2020 MY42021 MY52022 MY62023 MY7 WELL startenddays% GSstartenddays% GSstartenddays% GSstartenddays% GS A 3/15/1172293/14/2051213/14/154619 B *3/15/1475303/14/184920NA---------NA--------- C *3/15/1273293/14/174819NA---------NA--------- D 3/15/1273293/14/1849203/15/97028 E 3/15/1374303/14/2051213/16/29438 F 3/15/1071293/14/1546193/15/107129 G 3/15/0970283/14/1647193/14/144518 H 3/15/1778313/14/2960243/15/117229 I 3/15/0970283/14/1647193/14/174819 J 3/15/1273293/14/1849203/15/97028 K 3/14/0536153/14/1647193/15/86928 L 3/14/3061253/14/1748193/14/144518 Ref 3/15/1576313/14/2051213/15/76827 Adjusted Growing Season based on on-site soil temperature > 41° F is Mar 1 to Nov 3 (248 Days). Mitigation Plan success criterion is 10% of growing season (25 consecutive days WT < 12" below surface). Blue =Gauge meets hydrologic success. Brown =Gauge does not meet hydrologic success * Gauges B and C are in non-credit areas and do not contribute to project success evaluation. Yellow = Gauge failure; actual end of hydroperiod may have been later. . Percent of 2021 Growing Season with consecutive days of WT at -12 inches or higher.