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HomeMy WebLinkAbout20210750 Ver 2_Mitigation Plan Review_20220716From: Merritt, Katie To: Baker. Caroline D Subject: FW: Wicomico Mitigation Plan - DWR Review Date: Wednesday, July 20, 2022 2:09:28 PM Attachments: Wicomico BufferPlan DWRedits.pdf Please file the email below along with the attached Document. From: Merritt, Katie Sent: Thursday, June 16, 2022 3:29 PM To: Xu, Lin <lin.xu@ncdenr.gov> Cc: Wojoski, Paul A <Paul.Wojoski@ncdenr.gov>; Dow, Jeremiah J <jeremiah.dow@ncdenr.gov> Subject: Wicomico Mitigation Plan - DWR Review Hey Lin, Pursuant to Titles 15A NCAC 02B .0295 and 15A NCAC 02B .0703 (e), a provider shall submit a project plan proposal to the Division for review and approval that includes specific elements of the project. On February 9, 2022, the Division of Mitigation Services (DIMS) submitted a Mitigation Plan (Plan) for the Wicomico Site, to the Division, for review and approval. According to the initial review by DWR staff of the subject Plan, some elements were either not provided, not explained thoroughly, not accurate or lacking in sufficient information. Therefore, until DWR receives an updated Plan addressing all comments and edits provided in the attached 1) comment summary and 2) PDF version of the document itself, DWR cannot finalize the review of the Plan or issue an approval of the Plan. In an effort to be as efficient as possible at providing comments to DIMS during this busy time, I have provided my comments in a different format. Attached are the comments & edits provided within the actual PDF of a condensed Buffer Plan (without Appendices) as well as a comment summary. When DIMS is ready to submit their final project Plan, please include a summary of all DIMS' responses to the DWR comments acknowledging how DIMS addressed the comments. Please upload the final Plan using our Mitigation Project Information Upload Form through this link: https://edocs.deq.nc.gov/Forms/Mitigation_ Information_ Upload . Please note the DWR ID#2021- 0750 (version 2) on all electronic submissions for this project. Thank you for your patience during this time and if you have any difficulty reading though the comments or edits please let me know. Katie Merritt Nutrient Offset & Buffer Banking Coordinator 401 & Buffer Permitting Unit North Carolina Department of Environmental Quality Office: 919-707-3637 Work Cell: 919-500-0683 Website: https://deq.nc.gov/about/divisions/water-resources/water-quality permitting/401-buffer- permitting -branch 512 N. Salisbury Street, Raleigh, NC 27620 1617 Mail Service Center, Raleigh, NC 27699-1617 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. MITIGATION PLAN LNICOMICO BUFFER MITIGATION SITE EDGECOMBE COUNTY, NORTH CAROLINA DMS PROJECT No.100188 N C D EQ CO NTRACT No. 200209-01 ❑WR PROJECT No. 2021-0750 Tar Pamlico River Basin Cataloging Unit 03020103 RFP#:16-20200209 Prepared for: rk M� NC ❑epartment of Environmental Quality Division of Mitigation Services 1652 Mail service Center Raleigh, NC 27699-1652 February 2022 MITIGATION PLAN Wicomico Riparian Buffer Mitigation Site Edgecombe County, NC DMS Project No. 100188 DMS Contract No. 200209-01 DWR Project No. 2021-0750 Tar Pamlico Watershed HUC 03020103 Prepared for: nif Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 Prepared by: r7 NICH0LS Freese and Nichols, Inc. 531 N Liberty St Winston-Salem, NC 27101 This mitigation plan has been written in conformance with the requirements of the following: ■ 15A NCAC 02B .0295 Mitigation Program Requirements for Protection and Maintenance of Riparian Buffers. ■ 15A NCAC 02B .0240, Nutrient Offset Payments Rule, amended effective September 1, 2010 ■ NCDEQ Division of Mitigation Services In -Lieu Fee Instrument signed and dated July 28, 2010. These documents govern NCDMS operations and procedures for the delivery of compensatory mitigation. Contributing Staff: Bryan Dick, PhD, PE, PH Ian Jewell, JD Emily Brown, PE, CFM Lydia Ward, PE Jason Steele, PhD, PWS Contents Page Listof Figures............................................................................................................................................... iv Listof Tables................................................................................................................................................ iv 1.0 MITIGATION P ROJ ECT SU M MARY ..........................................................................................1 1.1 PROJECT NARRATIVE..................................................................................................1 1.2 PROJECT LOCATION AND SITE DESCRIPTION... ........................................................... 2 1.2.1 Watershed Characterization.....................................................•.............................. 3 1.2.2 Physiography, Geology. and Soils.............................................................................3 1.2.3 Streams and Existing Conditions.............................................................................. 4 2.0 REGULATORY CONSIDERATIONS............................................................................................5 2.1 ❑ETERMINATION ❑F CREDITS....................................................................................5 2.1.1 FEMA Floodplain....................................................................................................... 8 2.1.2 Threatened and Endangered Species ....................................................................... 8 2.1.3 Cultural Resources...............................................................................••................. 10 2.1.4 401/404..................................................................................................................10 3.0 IMPLEMENTATION PLAN......................................................................................................10 3.1 SITE PREPARATION................................................................................................... 10 3.2 MATERIALS AND METHODS.....................................................................................11 4.0 MONITORING PLAN..............................................................................................................13 4.1 VEGETATION MONITORING ..................................................................................... 13 4.2 PHOTOGRAPH REFERENCE STATIONS...................................................................... 13 4.3 VISUAL ASSESSMENT................................................................................................ 13 5.0 P ROJ ECT S U CCESS CRITERIA..................................................................................................14 6.0 STEWARDSHIP......................................................................................................................14 6.1 OWNERSHIP.............................................................................................................14 6.2 LONG-TERM STEWARDSHIP PLAN............................................................................15 7.0 REFERENCES..........................................................................................................................16 Wicomico Buffer Mitigation Site Craft Riparian Buffer Mitigation Plan CMS Project No. 100188 iii February 2022 Appendices: Appendix A Figures Appendix B NC DWR Correspondence Appendix C Categorical Exclusion Documentation Appendix ❑ Site Photographs Appendix E Conservation Easement Deed Figures Figure 1 Vicinity Map Figure 2 USGS Map Figure 3 Watershed Map Figure 4 Soils Map Figure 5 Historical Aerial Map Figure 6 FEMA Map Figure 7 Site Preparation Areas Figure 8 MitiFatinn Plan with Mnnitnrinu Pints Figure 9 Nutrient Offset Conceptual Map Tables Page Table 1. Ecological and Water Quality Goals — Wicomico Buffer Mitigation Site .................................... Table 2. Summary of Mapped Soil Series................................................................................................. Table 3. Buffer Project Attributes and Timeline — Wicomico Buffer Mitigation Site ............................... Table 4. Buffer Project Areas and Assets: Riparian Buffer Credits — Wicomico Buffer Mitigation Site......................................................................................................................................... Table 5. Regulatory Considerations.......................................................................................................... Table 6. Federally Protected Species in Edgecombe County, NC............................................................. Table 7. Wicomico Buffer Mitigation Site Planting Plan......................,.................................................... Table 8. Monitoring components — Wicomico Riparian Buffer Site ......................................................... Table 9. Site Protection Instrument— Wicomico Buffer Mitigation Site .................................................. 1 4 6 .7 .8 .9 12 14 15 Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan CMS Project No. 100188 iv February 2022 1.❑ MITIGATION PROJECT SUMMARY 1.1 PROJECT NARRATIVE The Wicomico Riparian Buffer Restoration Project (the "site") will provide high quality compensatory mitigation for authorized riparian buffer impacts credited through the NC DMS in -lieu fee program and ❑ccurring within the Tar Pamlico River Hydrologic Unit Code (HUC) 03020103 and to address the watershed goals identified win the Tar -Pamlico River Basin Restoration Plan (RBRP). The Site is located within the United States Geological Survey (USGS) hydrologic unit code (HUC) 03020103010010 and the Lower Tar North Carolina Department of Water Resources jNCDWRj River Sub - basin. The UT Tar River flows adjacent to the site and eventually flows into the Tar River approximately 4.1 river miles downstream. The Tar River is classified as a Class C stream and a Nutrient Sensitive Water (C, NSW(. While not discussed in any NCDMS Local Watershed Plans (LWPs), this reach of the Tar River is designated as a Targeted Local Watershed (TLW) and is discussed in the Tar -Pamlico River Basin RBRP. Fifty-eight percent of the watershed is agricultural. The RBRP notes that this watershed has the highest buffer impairment in the Tar -Pamlico River Basin and therefore has the highest priority need for buffer enhancement as well as addressing impacts from ditching and agriculture. Additionally, the project area is encompassed by catchments associated with targeted resource areas (TRAs). The catchments (IDS 3348463, 3348487, 3348547, 3348593, 3348597, 3348595, and 3348605) are associated with water quality, habitat, and hydrology TRAs. This riparian restoration project will improve water quality by creating a functioning native vegetation buffer that intercepts and filters agricultural runoff. The area surrounding the stream proposed for buffer mitigation is currently in use as row crop agriculture. By reducing and filtering the runoff from the site, and restoring a forested riparian area, the project will reduce nutrient and sediment inputs to UTTar River and ultimately the Tar River. The restored floodplain area will filter sediment during rainfall events, create shading to minimize thermal pollution, and provide a wildlife corridor to connect nearby forested areas. Invasive vegetation will be treated within the project area as needed and the proposed native vegetation wiI I provide cover and food for wildlife. The major goals of the proposed riparian restoration are to provide ecological and water quality enhancements to the Tar River watershed of the Tar Pamlico Basin by creating a functional riparian corridor and restoring the riparian areas. Specific enhancements to water quality and ecological processes are outlined in Table 1. Table 1. Ecological and Water Quality Goals — Wicomico Buffer Mitigation Site Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 1 October 2021 ■ ■Objectives■ Goals to Address/Remove Stressor ■ ■ r Water quality impairments q Y � p airments . Decrease nutrient inputs ■ Remove row crop (Nutrients) from on and off -site by vegetation and plant filtering runoff from native woody and agricultural fields herbaceous vegetation through restored native to reduce bare soil buffer zones surface, remove application of liquid fertilizers and herbicides Sediment Inputs . Sediment from on and ' Reduce sediment inputs off -site sources will be to waters in Tar River deposited on restored basin floodplain areas where native vegetation will slow overland flow velocities Non -diffuse flow ■ Remove areas of flow ■ Reduce sediment inputs concentration and allow to waters in Tar River overland flow velocities basin to further slow by enter native vegetation buffer. Terrestrial Habitat . Restore native woody ■ improve wildlife habitat Fragmentation — and herbaceous ■ Restore degraded vegetation and remove riparian buffers invasive vegetation 1.2 PROJECT LOCATION AND SITE DESCRIPTION The Wicomico Riparian Buffer Mitigation Site is located 4.5 miles south of Speed and 5 miles east of Tarboro, North Carolina. The site is accessed from NC-111 and the Site centroid coordinates are 35.90712,- 77.44034 (Figure 1). The site is comprised of approximately 3.7 acres along an unnamed tributary of the Tar River (UT Tar River). The Site is characterized by active row crop agriculture. The project will restore or enhance riparian areas within the project area, which will provide 160,000 buffer credits, or 3.67 acres worth of buffer mitigation. Driving Directions to the project (from Raleigh): Get on 1-440E from Capital Blvd. Continue onto US-64E to Exit 488, South Shiloh Farm Road. Head North on South Shiloh Farm Road for approximately 1 miles and then take a right onto NC-111 north. Continue onto NC-111 north, proceed approximately 5.4 miles to a dirt farm road entrance on the left. Follow the dirt road for approximately 1/3 of a mile and turn right Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 2 February 2022 onto an unimproved farm road that parallels a large ditch/stream. The conservation easement begins approximately 800 feet up this road. 1.2.1 Watershed Characterization The Wicomico Riparian Buffer Mitigation Site is located 4.5 miles south of Speed and 5 miles east of Tarboro, North Carolina. The Site is located within the United States Geological Survey (USGS) 14-digit hydrologic unit code (HUC) 03020103010010 and the Lower Tar North Carolina Department of Water Resources (NCDWR) River Sub -basin. Site topography, as shown on the Speed, NC 7.5 minute topographic quadrangle, has very little topographic relief with a gentle slope from the terrace located east of the project area (Figure 2). 1.2.2 Physiography, Geology, and Soils The Wicomico Riparian Buffer Mitigation Site is located in the North Carolina Coastal Plain physiographic province and is underlain by the Yorktown and Duplin Formations. The Yorktown Formation consists of fossiliferous clay and bluish gray fine-grained sand; the Duplin Formation is composed of medium- to coarse- grained sand, sandy marl, and limestone. Site soils are largely poorly drained, which facilitates the formation of wetlands in small depressions on floodplains across the western Coastal Plain. The project site is in the geomorphic flood plain of an unnamed tributary to the Tar River and is situated approximately 4.1 river miles away from the Tar River and is adjacent to the Wicomico Terrace. Throughout the late Pleistocene and early Holocene, the Tar River drainage basin experienced changes in hydrology, sediment load, baseflow, isostatic adjustment, and climate (Moore and Daniel, Jr., 2011). These changes produced a complex geomorphologic sequence that includes numerous terraces, a modern floodplain, and an incised river channel that has cut down into underlying Cretaceous and Tertiary geologic units. The terraces consist of a thin layer of Quaternary sediments underlain by fluvial, estuarine, and marine sequences that include various Cretaceous and Tertiary formations (such as the Yorktown Formation). The overlying layer of Quaternary sands has been influenced by changes in fluvial and aeoIian processes, climate (i.e., drought), and vegetation. The Tar River has been migrating south-southwest through time, preserving Pleistocene and Holocene sediments northeast of the river and creating an asymmetric river valley. Soil mapping units are based on the US Department of Agriculture (USDA) Natural Resource Conservation Service (NRCS) soil survey for Edgecombe County. Site soils are mapped as the BaIIahack series, which are a fine sandy loam typically found in flats and depressions in the Coastal Plain. These soils are show in Figure 4, and mapped soil series occurring on the site and their associated properties are summarized in Table 2. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 3 February 2022 Table 2. Summary of Mapped Soil Series 1.2.3 Streams and Existing Conditions The property is currently managed for agricultural production (corn and soybeans) and lacks existing forested buffer along the streams and drainage ways bisecting and surrounding the site. Site drainage and hydrology have been historically altered with channeIited streams and cleared agricultural lands prevalent on historic aerial photographs dating back to the 1905s. Historic aerial photography from 1951 are included as Figure 5 and show the site in agricultural production. In general, the site has maintained an agricultural production character over the past 70 years within very little changes in land cover. This consistency within the project watershed indicates that watershed processes affecting hydrology, sediment supply, and nutrient and other pollutant delivery have not varied widely over this period. The lack of development pressure makes it likely that watershed processes and stressors from outside of the project limits will remain consistent throughout the implementation, monitoring, and closeout of this project. The drainage area of UT Tar River (Stream A) at the site boundary encompasses 3.56 square miles and flows through multiple row crop agriculture areas before reaching the project area. Historical aerial photographs show the Stream A was ditched prior to 1951, and the riparian area has been in agricultural use for the same timeframe. The riparian area is dominated by row crop agriculture with a single row of trees along Stream A. Overall, ecological degradation of the site is directly attributed to row crop agriculture. On April 21, 2021, Mr_ Shelton Sullivan and Mt Rethany Harvey of the NC Division of Water Resources (DWR) conducted an on -site determination of site channels for the applicability of the Tar Pamlico Riparian Buffer Rules (15A NCAC 02B .0259). It was determined that the reach of Stream A bordering the site is subject to Tar Pamlico Buffer Rules. A copy of the DWR Stream Determination letter (dated April 28, 2021) is provide in Appendix B. Note that for the purpose of this Mitigation Plan, the nomenclature of site reaches will be consistent with those referenced in the "Site Viability for Buffer Mitigation and Nutrient Offset Letter" prepared by Ms Katie Merritt of NC DWR on June 10, 2021. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 4 February 2022 The dominant vegetation community within the project area is primarily composed of row crop agriculture dominated by soybeans (Glycine max). An area of managed pine forest of loblolly pine (Pines toedo) is located 375 feet east of the proposed buffer area. The site has been maintained by mechanical and chemical controls up to the edge of Stream A and lacks canopy, understory, and shrub vegetation layers. A single layer of mixed hardwood forest is located approximately 5 feet from the edge of the ditched stream. Typical vegetation within this area includes common persimmon (Diospyros virginiona), sweetgum (Liquidombor styrocifluo), red maple (Ater rubrum), water oak (Quercus nigro), willow oak (Q. phellos), winged elm (Ulmus alato) and loblolly pine (Pines toeda). Typical herbaceous species along the fringe of the managed row crop area include tall goldenrod (Solidago oltissimo), perennial sowthistle (Sonchus arvensis), blackberry (Rubus orgutus), and various grasses (Festuca and Poo spp.). Interspersed vine species, including cat greenbrier (Smilax glauca), trumpet creeper (Compsis radicans), poison ivy (Toxicodendron radicans), and Japanese honeysuckle (Lonicera japonica) were observed within the thinly wooded buffer area. Drainage area for the riparian areas were determined by delineating watersheds using the USG5 StreamStats program. Figure 3 shows the watershed boundary for the area, which is approximately 3.52 square miles in size. The watershed is predominantly comprised of row crop agriculture, with dispersed areas of woodlands. Photographs of existing site conditions are included in Appendix D. 2.0 REGULATORY CONSIDERATIONS 2.1 DETERMINATION OF CREDITS Approximately 1,950 linear feet of Stream A have been targeted for riparian area restoration. Approximately 3.67 acres of existing agricultural fields are targeted for restoration to provide 160,000 riparian buffer mitigation units. On June 10, 2021 Mc Katie Merritt of NC DWR performed an evaluation of surface water features and adjacent riparian areas within the proposed Site for the determination of riparian buffer mitigation pursuant to 15NCAC 02B .0295. Based upon this evaluation, DWR determined that areas within 200 feet of UT Tar River are eligible for buffer credit. There are no known site constraints that would impede or adversely affect the restoration of the riparian buffer within the recorded easement area. Diffuse flow of runoff will be maintained in the riparian buffer. Any direct conveyances (such as drainage swaIes) will be eliminated, and the flow converted to diffuse flow. The Site Viability Letter is included in Appendix B. The proposed mitigation attributes, quantities and credits are outlined in Table 3 and Table 4 below. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 5 February 2022 Table 3. Buffer Project Attributes and Timeline — Wicomico Buffer Mitigation Site. Project Name Wicomico Buffer River Basin USGS Hydrologic Unit 8-digit f USGS Hydrologic Unit 14-digit 03020103010010 NCDWR River Sub -basin • Geographic Location (Lat/ Long DD)35.90712,-77.44034 Site Protection Instrument (DB, PG) To be recorded Total Credits (BMU) of off Type of Credits Riparian Mitigation Plan Date February Initial Planting Date Novernber 2022 Baseline Report Date December 2f MY1 Report Date November 2023 MY2 Report Date November 2024 MY 3 Report Date November 2025 MY 4 Report Date November 2026 MY 5 Report Date November Wicomica Buffer Mitigation Site CMS Project No. 100188 Draft Riparian Buffer Mitigation Plan February 2022 �k\# I)§ ; §§ ` _•� /�R 2 � a � }\ ® \ ( (\ �\}§}>\§§« — §§§ } } | ! \ k ( \ « | \\ \�� � k k J jj f z 2 ■ Z 2 2 a ƒ ] m ` } § ) } ) co \ ;■3°° �■: ■ ; ° E ; b � k�§)2-Cie, �2cc��� 2}i a To ensure that a project meets "Categorical Exclusion" criteria, the Federal Highways Administration (FHWA) and NCDMS have developed a Categorical Exclusion (CE) checklist that is included as part of the environmental screening process. A Government Environmental Records Report was ordered for the site through Envirosite Corporation on March 23, 2021. Neither the target property, nor adjacent properties, were listed in any of the Federal, State, or Tribal environmental databases searched by Envirosite. The assessment revealed no evidence of any recognized environmental conditions jRECsj connected to or within 1 mile of the Site. The CE documentation and CE approval Form for the Site are included in Appendix C and was approved by FHWA and DMS on July 6, 2021. A summary of regulatory considerations for the Site is presented in Table 5. These considerations are expanded upon in Sections 2.1.1 to 2.1.4. A copy of the signed Categorical Exclusion Form for the project can be found in Appendix C. Table 5. Regulatory Considerations Applicable Resolved SupportingParameters .. Water of the United States - Section 404 No N/A N/A Water of the United States - Section 401 No N/A N/A Endangered Species Act Yes Yes Categorical Exclusion (Appendix C) Categorical Exclusion Historic Preservation Act Yes Yes (Appendix C) Coastal Zone Management Act (CZMA or No N/A N/A CAMA) FEMA Floodplain Compliance No N/A N/A Essential Fisheries Habitat No N/A N/A 2.1.1 FEMA Floodplain According to the North Carolina Floodplain Mapping Information System, the Site does not lie within a 100-year floodplain (one percent annual chance of flooding) and is not within a regulatory floodway (Figure 6). The project is within FEMA FIRM Panel 3720476800J, effective November 3, 2004. The stream adjacent to the project area is outside of a 5pecial Flood Hazard Area. No hydrologic trespass will result from the riparian buffer restoration project. 2.1.2 Threatened and Endangered Species Plants and animals with a federal classification of endangered or threatened are protected under provisions of Sections 7 and 9 of the Endangered Species Act of 1973, as amended. As of March 29, 2021, the United States Fish and Wildlife Service (USFWS) lists five federally protected species for Edgecombe County, which include the bald eagle (Holioeetus leucocepholus), red -cockaded woodpecker (Picoides Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 8 October 2021 borealis), dwarf wedgemussel (Alosmidonta heterodon), Tar River spinymussel (Parvospino steinstonsono) and yellow lance (Elliptio lanceoloto) (Table 6). A pedestrian survey conducted in March 2021 did not identify any potential habitat for listed species within the project area. Table 6. Federally Protected Species in Edgecombe County, NC Scientific Name Common Federal Habitat 0 Name Status Bald and Mature forest in proximity to large Golden Eagle bodies of open water for foraging. Large Haliaeetus leucocepholus Bald eagle Protection dominant trees are utilized far nesting Act sites, typically within 1.0 mile of open water. Open, mature stands of southern pines, particularly longleaf pine (Pines Prcoides borealis Red -cockaded Endangered polustris) aged 60 years or older, which woodpecker are contiguous with pine stands at least 30 years of age to provide foraging ha b itat. Creek and river areas with a slow to moderate current and sand, gravel, or Alasmidonta heterodon dwarf Endangered firm silt bottoms. Waters must be well wedgemussel oxygenated. Stream banks in these areas are generally stable with extensive root systems holding soils in place. Fast flowing streams with well oxygenated, circumneutral pH water. The bottom should be composed of Parvaspina steinstansona Tar River Endangered unconsolidated gravel and coarse sand. spinymussel Water needs to be silt free, and stream banks should be stable, typically with many roots from adjacent trees and shrubs. Sand loving species found in clean, Elliptio lanceolate Yellow lance Threatened coarse to medium sand, with moderate flowing water with high dissolved oxygen. A review of the North Carolina Natural Heritage Program (NCNHP) records on March 29, 2021 indicated no known threatened or endangered species occurrence within a ❑ne-mile radius of the Site. A letter was sent to the North Carolina Wildlife Resources Commission (NCWRQ on April 14, 2021 requesting review and comment of possible issues with respect to fish and wildlife resources on the site. No response was received by June 15, 2021. All correspondence with NCWRC is included in Appendix C. Based upon agency responses and the results of the pedestrian survey, the project would have a "no effect" on any of the five federally listed species. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 9 February 2022 2.1.3 Cultural Resources A review of the North Carolina State Historic Preservation Office GIS Web Service database on March 30, 2020 revealed no National Register listings within a one -mile radius of the Site. A letter was submitted to the North Carolina State Historic Preservation Office (SHPO) on April 14, 2021. SHPO responded on May 11, 2021 and stated that they were aware "of no historic resources which would be affected by the project". Cultural resources met the Categorical Exclusion criteria for FHWA and NCaMS projects, and documentation is included in Appendix C. 2.1.4 401/404 There will not be permanent impacts to Waters of the United States at the Site. All riparian restoration will take place in uplands and will not occur within the jurisdictional boundary of UT Tar River that flows east of the Site. 3.0 IMPLEMENTATION PLAN 3.1 SITE PREPARATION Based upon pre -project assessment of compaction within the proposed planting areas, the buffer area will be chisel plowed to reduce the negative impact of the compacted plow pan on tree root growth. The drainage swales present on the eastern boundary of the Site will be graded to promote diffuse flow at the riparian buffer boundary. A temporary stabilization seed mix will be used to stabilize plowed soils and reduce sediment loss during rain events in disturbed areas. This will be followed by a permanent seed mixture. No other physical drainages (i.e., drainage tiles, ditches) were observed within the project area. However, such features will be removed during project implementation in the event any are observed prior to, or during, construction and planting. The proposed mitigation site will provide for the establishment of natural plant assemblages occurring within riparian habitats of the Coastal Plain. Target species to be planted have been carefully selected based upon site -specific information (including soil profiles and evaluation of landscape position). The proposed planting regime will result in a mature community characteristic of riparian areas in the region. The project will include the restoration and enhancement of riparian areas adjacent to streams on the property as outlined in Figure 8. Nutrient offsets provided by the project are shown in Figure 9. This will be achieved via the planting of characteristic hardwood species and ensuring diffuse flow through the riparian area. Low levels of existing exotic or invasive species cover have been observed within the proposed buffer area. Dense areas of invasive species will be treated during construction. Prior to planting, the conservation easement boundary will be marked using 6-inch diameter treated post buried 2 feet, standing 6 feet above the ground surface, within the agricultural fields. T-posts will be Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 10 February 2022 installed to provide supplemental marking within areas between the treated post,.wA-him th-e enhancement area and within the Preservation area as needed. The easement boundary will also be marked with standard yellow Conservation Area signs, per the January 2014 NCDMS Boundary Marking Standards. 3.2 MATERIALS AND METHODS The revegetation plan for the riparian restoration area will include permanent seeding, planting bare root trees and live stakes. These revegetation efforts will be coupled with treating invasive species. The planting plan consists of the planting of native species on a density of approximately 538 stems per acre. Species selection and distribution were matched closely to micro -site hydrologic and edaphic conditions and include species characteristic of riparian buffer assemblages in the watershed. Site index provides a species specific indirect measure of site productivity expressed as the average height of the tree species at a specific age. The site was evaluated using the Baker and Broadfoot site index model (Baker and Broadfoot,1979), which evaluates soil and site factors as indicators of soil aeration, moisture, compaction, and nutrients to determine the productivity of the site for select hardwood tree species. Site index at age 50 for cherrybark oak (Quercus pagoda), willow oak (Q. phellos), and American sycamore (Platanas occidentolis) were 76 feet, 72 feet, and 71 feet respectively, which indicates that these species are suitable far the observed site conditions. The water oak (Q. nigra) site index of 75 to 84 feet was calculated based upon Broadfoot (1963), indicating that the species is also very well suited for the observed site conditions. This was further supported by the observed water oak saplings adjacent to the site. Mature American persimmon (Diospyros virginiona) was also observed within the single layer of trees present within the site and downstream of the site, indicating that the species is also well suited for the site conditions. Additional species, including silky dogwood, spicebush, American beautyberry, and Allegheny chinkapin will provide a native understory vegetative layer that will enhance nutrient uptake and provide additional wildlife value. Table 7 summarizes the planting plan for the site. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 11 February 2022 Table 7. Wicomico Buffer Mitigation Site Planting Plan Buffer Area (160000.0 square feet, 3.67 acres) Scientific Name Common Name Quantity % Composition Platonus occidentalis American sycamore 325 16% Callicarpo americans American beautyberry 152 7% Bare root Corpus amomum Silky Dogwood 110 5% seedlings Lindera benzoin Spicebush 175 9% planted Quercus pogoda Cherrybark Oak 194 9% on 9-ft BARE ROOT centers, with Quercus michauxii Swamp chestnut oak 330 16% Quercus nigra Water oak 220 11% species randomly distribute Sombucus CQnpdenSiS Elderberry 109 5% d Castones pumila Chinkapin Allegheny 110 ° 6/° Diospyros American 330 16% virginiona persimmon HERBACEOUS PLANTING All Disturbed Area (160000.0 square feet, 3.67 acres) Warm Season (May 15 - Aug 15) - German Millet Apply at40 TEMPORARY Ibs/acre SEEDING to all Cool Season (Aug 15 - May 15) - Virginia Rye disturbed areas Scientific Name Common Name % by Weight Andropogon gerardii Big bluestem 12% Carex vulpinoidea Fox sedge 10% Coreposis lanceloato Lance leaf tickseed 5% Apply at Elymus virginicus Virginia rye 15% PERMANENT SEEDING 25 lb/acre to disturbed Festuca ovina Hard fescue 5% Ponicum virgatum Switchgrass 10% Rudbeckio hirta Blackeyed susan 1% areas Schirachyrium scoporium Little bluestem S% Sorghostrum nutans Indian grass 9% Tridens flavus Purple top 12% Tripsocum doctyloides Eastern 13% gam magrass Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 12 February 2022 The planting and re-establishment of characteristic riparian vegetation will be coupled with controlling invasive species population. Herbicide applications and vegetative management may be needed during tree establishment in the restoration areas to prevent recruitment and establishment of invasive species that could compete with the planted native species. The restoration area will be closely monitored, and invasive vegetation management will be implemented as needed, and in consultation with DM staff. 4.0 MONITORING PLAN The site monitoring plan has been developed to ensure that the required performance standards are met, and project goals and objectives are achieved. Project monitoring components are listed in more detail in Figure 8. Table 8 includes a summary of the project monitoring components. 4.1 VEGETATION MONITORING Vegetation monitoring quadrants will be installed across the site to measure the survival of the planted trees (Figure 8). Planted stems in the monitoring plot will all be marked. The first annual monitoring activities will commence at the end of the first growing season, at least 180 days after planting has been completed, and will be re -assessed annually no earlier than .August of each year. Species composition, density, and survival rates will be evaluated on an annual basis for each plot and for the entire site. The number of monitoring quadrants required, and frequency of monitoring, will follow the CVS-EEP Protocol Level 2 (version 4.2) or other approved DMS protocol. Reference photographs of the vegetation plots and site will be taken during the annual vegetation assessment. Planted vegetation must average 7 feet in height at the end of monitoring year (MY) 5. Survival rate will be 150 stems/acre at My3 a d 260 stems/acre at MY5. 4.2 PHOTOGRAPH REFERENCE STATIONS Photographs will be taken within the project area once a year to visually document stability for five years following construction. Permanent markers will be established and located with GPS equipment so the same location and view directions on the site are photographed each year. 4.3 VISUAL ASSESSMENT A visual assessment of the conservation easement will also be performed each year to confirm the following: ■ Fencing/signage are in good condition throughout the site ■ No livestock access within the conservation easement area Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 13 February 2022 ■ No encroachment has occurred ■ No invasive species in areas where invasive species have been treated ■ Diffuse flow has been maintained in the conservation easement area ■ No cutting, clearing, grubbing, or similar activities have occurred that would negatively affection the functioning of the buffer Table 8. Monitoring components — Wicomico Riparian Buffer Site Vegetation Monitoring Feature CVS Level 2 Quadrant QuantityParameter 5 Annual Visual Assessment Yes Annual Exotic and Nuisance Vegetation Annual Project Boundary Annual 5.0 PROJECT SUCCESS CRITERIA The site will be evaluated based upon performance criteria related to vegetative density. Specifically, the performance criteria for this project will be: 1. Demonstrated density of planted species to meet or exceed 260 trees per acre (including native hardwood and native shrub volunteer species) during the fifth year post -planting; and 2. Species assemblage must include a minimum of four native hardwood species or four native hardwood tree and native shrub species, where no one species is greater than 50% of stems. 6.0 STEWARDSHIP 6.1 OWNERSHIP The land required for riparian area planting, management, and stewardship of the mitigation project includes a portion of the parcel listed in Table 9. An option agreement for the project area has been signed by the property owner and a Memorandum of Option has been recorded at the Edgecombe County Register of Deeds. The proposed conservation easement on this property has not yet been recorded. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 14 February 2022 Table 9. Site Protection Instrument — Wicomico Buffer Mitigation Site All site protection instruments require 60-day advance notification to the State prior to any action to void, amend, or modify the document. No such action shall take place unless approved by the State. 6.2 LONG-TERM STEWARDSHIP PLAN The site will be transferred to the North Carolina Department of Environmental Quality (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. Funding will be supplied by the responsible party on a yearly basis until such time an endowment is established. The NCDEQ Stewardship Program is developing an endowment system within the non -reverting, interest -bearing Conservation Lands Conservation Fund Account. The use of funds from the Endowment Account will be governed by North Carolina General Statue GS 113A-232(d)j3j. interest gained by the endowment fund may be used for the purpose of stewardship, monitoring, stewardship administration, and land transaction costs, if applicable. The Stewardship Program will periodically install signage as needed to identify boundary markings as needed. The landowner shall contact the long-term steward if clarification is needed regarding the restrictions associated with the recorded conservation easement. The landowner shall also report damaged or missing signs to the long-term steward, as well as contact the long-term steward if a boundary needs to be marked, or clarification is needed regarding a boundary location. If land use changes in future and fencing is required to protect the easement, the landowner is responsible for installing appropriate approved fencing. Long-term stewardship activities may include (but are not limited to): ■ Signage installation and maintenance along the Site boundary to denote the area protected by the recorded conservation easement; ■ Evaluation and repa i r/re med iati o n of diffuse flow; and ■ Evaluation and remediation of nuisance vegetation. Wicomico Buffer Mitigation Site Draft Riparian Buffer Mitigation Plan DMS Project No. 100188 15 February 2022 7.0 REFERENCES Broadfoot, W.M., 1963. Guide for evaluating water oak sites (Vol. 1). Southern Forest Experiment Station, Forest Service, US Department of Agriculture. Baker, J.B. and Broadfoot, W.M., 1979. Site evaluation for commercially important southern hardwoods. US Department of Agriculture Forest Service, Southern Forest Experiment Station, General Technical Report SO-26. New Orleans, Louisiana. Lockhart, B.R., 2013. Site index determination techniques for southern bottomland hardwoods. Southern Journal of Applied Forestry, 37(1), pp.5-12. Natural Resources Conservation Service (NRCS). Web Soil Survey of Edgecombe County. http://websoiIsurvey.nrcs.usda..gov/app/HomePage.htm North Carolina Division of Water Quality (NCDWQ), 2011. Surface Water Classifications. http:j/deg.nc.govjaboutjdivisions/water-resources/planning/classification-standards/classifications North Carolina Natural Heritage Program (NHP), 2021. Natural Heritage Element Occurrence Database, Edgecombe County, NC. United States Fish and Wildlife Service (USFWS), 2021. Endangered Species, Threatened Species, Federal Species of Concern and Candidate Species, Pitt County, NC. https://www.fws.gov/raleigh/species/cntylist/edgecombe.html Wicomico Buffer Mitigation Site DMS Project No. 100188 Draft Riparian Buffer Mitigation Plan 16 February 2022 Appendix A Figures Tarboro-E Airport fr 4' TARBORO PRIG 111111f ily,lli 1 1. " At U5 i I. 42J _ _ _ 5 Mile Radius 33 c COHETOE Q Project Location Airports a {'S rsva:W © commercial Service 2 4 y.G4A. Mlles General Aviation OLD N VICINITY MAP Wicomico Buffer Mitigation Site FIGURE 1 FREESE 531 N. Liberty St. Winston-Salem NC 27101 Edgeco he County, NC m w� ¢ NICHOL,S 336-790-6744 1 4$' 01 (44) F 58 12; �' '_• 1 t.. l 43 97 44 i I 64T4�. f° 61 64 r 43 13 ' 64 58 :q2. 64 II I I _ 11 1 33 903 17 30 JL • l711� a a 1 a �b. I �►s � �`�� � e .I ,1 • �l as ,•1 • I i 1 Y C - '� r .` ♦ � � '1 "� i ` 1. � " 0 2,000 4,000 0 Conservation Easement Feet Parcel Boundary i • � 1 .} .I� fr/ � � _.r6 .� I� 4 TOPOGRAPHIC �I MAP FIGURE Wlcomico Buffer Mitigation Site FREESE 531 N. Liberty St. F Winston-Salem NC 27101 'I Edgecomhe County, NC NICHOLS 336-790-6744 SPEED 030201020605 PINEY GROVE f ■ r v\ 030201 0 4,000 8,000 Feet t ■ x 1 *1 r © Conservation Easement 030201030305 0 Project Watershed 0 HUC 12 Boundary m Tar Pamlico 03 Service Area N WATERSHED MAP Wicomico Buffer Mitigation Site FIGURE 3 FREESE 531 N. Liberty St. Winston-Salem NC 27101 Edgecomhe County, NC w� ¢ NICHOL,S 336-790-6744 Conservation Easement p 9s s . C +R - A aA C • t. Pu Pv 14 A aARa _ ^� L A C� _ AU& -IRO � Y AOA _ .ry cif 0 s# A+ R T A& a y ft ail 1i D r PWADO t bf f. ■ ° Ba: Ballahack 1119= Feet Source: 1979 Edgecombe County NRCS Soil Survey • r 14 11 1979 Soils Map FIGURE 4 Wicomico Buffer Mitigation Site Edgecombe County, NC FREESE 531 N. Liberty St. Winston-Salem, NC 27101 IrMNINAKHOLS 336-790-6744 11 •S o 1,000 2,0 00 Feet - �m ® Conservation Easement 1 1951 HISTORIC AERIAL FIGURE 5 Wicomico Buffer Mitigation Site FREESE 531 N. Liberty St. Winston-Salem, NC 27101 IrMNINAKHOLS Edgecombe County, NC 336-790-6744 PANEL 3720475900K eff. 602015 PANEL 3720475800J eff. 11 /312004 Cherry Hill ChLU:' n 0 2,000 4,000 Feet eff. 11/3/2004 PANEL 3720476000J eff. 11 /312004 ` Coakl Conservation Easemen: Q FIRM Panels Flood Hazard Boundaries Limit Lines 5FHA/ Flood Zone Boundary Flood Hazard Zones 1%An nuaI Chance Flood Hazard 54 ft Regulatory Floodway Special Floodway Area of Undetermined Flood Hazard 0.2% Annual Chance Flood Hazard Future Conditions 1%Annual Chance Flood Hazard Area with Reduced Risk Due to Levee PANEL Area with Risk Due to Levee 3720476600K Gages rr�, erseff;�'t,113l2004 eR. 11IJIZUU4 FEMA MAPPING Wicamica Buffer Mitigation Site FIGURE 6 FREESE 531 N. Liberty St. Winston-Salem, NC 27101 Edgecomhe County, NC w� 1 AICHOLS 336-790-6744 r §'{ ' V h -t x I 0 Conservation Easement Type of Site Preparation 0 300 600 F-1 Mow (0.89 ac) Feet Rip and Disk (3.22 ac) N SITE PREPARATION Wicamica Buffer Mitigation Site FIGURE 7 FREESE 531 N. Liberty 5t. Winston-Salem, NC 27101 Irm,110MICHOLS Edgecombe County, INC 336-790-6744 100 6 ,try" . .r. Laic TtR ♦�a .sy�:.. _ V`�. 4_ e i.;l��r^_"'} 1•'�' _ 'ice • y r y�•�y1��+]�Y:. i, '��V 7 t, Monitoring Plots 0 300 600 o Edge of Stream Feet ® Buffer Restoration TOB - 100 ft (3.67 ac = 160,000.0 BMU) 0 Conservation Easement RAITIr-ATION PLAN WITH PLOT LOCATIONS FIGURE 8 Wicamica Buffer Mitigation Site FREESE 531 N. Liberty St. IrMIMAKHOLSWinston-Salem, NC 27101 Edgecombe County, NC 336-790-6744 Conservation Easement Boundary Perennial Stream ® Riparian Restoration for Nutrient offset (0-100') ye4 0 300 600 Feet L, This figure only represents areas that are viable to be converted from Riparian.4 y Buffer Credits to Nutrient Offset Credits 14 NUTRIENT OFFSET 1 CONCEPTUAL 1llilcomico Buffer Mitigation Site FIGURE 9 FREESE 531 N. Liberty St. Winston-Salem, NC 27101 FN Edgecombe County, NC NICHOLS 336-790-6744