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HomeMy WebLinkAbout20230026 Ver 1_Swiftie Draft Mitigation Plan_20230921 Draft Mitigation Plan Swiftie Mitigation Bank Edgecombe County, North Carolina Private Commercial Mitigation Bank for Stream and Riparian and Non- riparian Wetland Compensatory Mitigation Credits Tar-Pamlico River Basin (HUC 03020101) USACE Action ID Number: SAW-2019-00631 DWR #: 20230026 v1 Prepared for: U.S. Army Corps of Engineers, Wilmington District 69 Darlington Avenue Wilmington, North Carolina 28403-1343 Prepared by: September 2023 Draft Mitigation Plan Swiftie Mitigation Bank Page 2 Table of Contents 1 Introduction .......................................................................................................................................... 6 1.1 Background ................................................................................................................................... 6 1.2 Bank Sponsor ................................................................................................................................ 6 1.3 Mitigation Goals and Objectives ................................................................................................... 6 2 Bank Establishment and Operation ...................................................................................................... 7 2.1 Site Selection ................................................................................................................................. 7 2.2 Service Area .................................................................................................................................. 8 2.3 Site Protection Instrument ............................................................................................................ 8 2.4 Watershed Need and Feasibility ................................................................................................... 8 3 Baseline Information ............................................................................................................................. 9 3.1 Watershed Characterization ......................................................................................................... 9 3.1.1 Surface Water Classification ................................................................................................. 9 3.1.2 Jurisdictional WOTUS ............................................................................................................ 9 3.1.3 NC SAM and NC WAM ......................................................................................................... 10 3.2 Land Use and Development Trends ............................................................................................ 10 3.3 Landscape Characteristics ........................................................................................................... 10 3.3.1 Physiography and Geology .................................................................................................. 10 3.3.2 Soils ..................................................................................................................................... 11 3.3.3 Climate ................................................................................................................................ 11 3.3.4 Existing Vegetation ............................................................................................................. 11 3.4 Existing Stream Conditions ......................................................................................................... 13 3.4.1 Geomorphic Assessment .................................................................................................... 13 3.4.2 Existing Reach Descriptions ................................................................................................ 15 3.5 Existing Wetland Conditions ....................................................................................................... 18 3.5.1 Plant Community Characterization ..................................................................................... 18 3.5.2 Hydrological Characterization ............................................................................................. 18 3.5.3 Soil Characterization ........................................................................................................... 19 3.6 Potential Site Constraints ............................................................................................................ 20 3.6.1 Existing Easements on the Site ........................................................................................... 20 3.6.2 Utility Corridors within the Site .......................................................................................... 20 3.6.3 Aviation Facilities ................................................................................................................ 20 3.6.4 Mineral or Water Rights Assurance .................................................................................... 20 Draft Mitigation Plan Swiftie Mitigation Bank Page 3 3.6.5 FEMA Floodplain Compliance and Hydrologic Trespass ..................................................... 20 3.6.6 Invasive Species Vegetation ................................................................................................ 20 3.6.7 Potential Future Site Risk and Uncertainties ...................................................................... 20 3.7 Regulatory Considerations .......................................................................................................... 21 3.7.1 Cultural Resources .............................................................................................................. 21 3.7.2 Threatened and Endangered Species ................................................................................. 21 3.7.3 Conditions Affecting Hydrology .......................................................................................... 22 3.7.4 Adjacent Land Use .............................................................................................................. 22 4 Functional Uplift Potential .................................................................................................................. 22 4.1.1 Restoration Potential and Project Benefits Summary ........................................................ 23 5 Determination of Credits .................................................................................................................... 25 5.1 Proposed Mitigation Credit Types .............................................................................................. 25 5.2 Credit Release Schedule .............................................................................................................. 26 6 Mitigation Work Plan .......................................................................................................................... 28 6.1 Design Approach ......................................................................................................................... 28 6.2 Headwater Valley Stream Approach ........................................................................................... 29 6.3 Design Criteria Selection ............................................................................................................. 29 6.3.1 Stream Design Reach Summary .......................................................................................... 30 6.3.2 Wetland Design Summary ................................................................................................... 32 6.4 Flow Regime ................................................................................................................................ 34 6.4.1 Bankfull Stage and Discharge .............................................................................................. 35 6.4.2 Regional Curve Comparison ................................................................................................ 36 6.4.3 Channel Forming Discharge ................................................................................................ 36 6.4.4 Channel Stability and Sediment Transport Analysis ........................................................... 37 6.5 Reference Sites ........................................................................................................................... 38 6.5.1 Reference Streams .............................................................................................................. 38 6.5.2 Reference Wetlands ............................................................................................................ 39 6.6 Revegetation Plan ....................................................................................................................... 40 6.6.1 Planting Materials and Methods ......................................................................................... 41 6.7 Site Construction Methods ......................................................................................................... 42 6.7.1 Site Grading and Construction Elements ............................................................................ 42 6.7.2 Stream, Wetland, and Floodplain Improvement Features ................................................. 43 6.7.3 Construction Feasibility ....................................................................................................... 43 Draft Mitigation Plan Swiftie Mitigation Bank Page 4 6.7.4 Future Project Risks and Uncertainties ............................................................................... 44 7 Maintenance Plan ............................................................................................................................... 44 8 Performance Standards ...................................................................................................................... 45 8.1 Streams ....................................................................................................................................... 45 8.2 Headwater Streams .................................................................................................................... 46 8.3 Wetlands ..................................................................................................................................... 46 8.4 Vegetation ................................................................................................................................... 47 8.5 Invasive Species .......................................................................................................................... 47 9 Monitoring Plan .................................................................................................................................. 47 9.1 Stream Monitoring ...................................................................................................................... 48 9.1.1 Hydrologic Monitoring ........................................................................................................ 48 9.1.2 Geomorphic Monitoring ..................................................................................................... 48 9.1.3 Flow Duration Monitoring................................................................................................... 49 9.1.4 Headwater Stream Monitoring ........................................................................................... 50 9.2 Wetland Monitoring ................................................................................................................... 51 9.3 Vegetation Monitoring ................................................................................................................ 51 9.4 Visual Assessment Monitoring .................................................................................................... 52 10 Long-Term Management Plan ............................................................................................................ 53 11 Adaptive Management Plan ............................................................................................................... 54 12 Financial Assurances ........................................................................................................................... 54 13 References .......................................................................................................................................... 56 Tables Table 1. Parcel Ownership Information ....................................................................................................... 8 Table 2. NCSAM/NCWAM Summary .......................................................................................................... 10 Table 3. Existing Project Site Vegetation ................................................................................................... 13 Table 4. Reach Watershed Drainage & Jurisdictional Status ..................................................................... 14 Table 5. Existing Channel Morphology Summary ...................................................................................... 14 Table 6. Function-Based Goals and Objectives Summary .......................................................................... 23 Table 7. Project Benefits Summary ............................................................................................................ 24 Table 8. Proposed Stream Mitigation Credits (SMCs) ................................................................................ 25 Table 9. Proposed Wetland Mitigation Credits (WMCs) ............................................................................ 26 Table 10. Credit Release Schedule ............................................................................................................. 27 Table 11. Proposed Design Parameters ..................................................................................................... 30 Table 12. Flow Level and Ecological Role ................................................................................................... 35 Table 13. North Carolina Coastal Plain Regional Curve Equations ............................................................. 36 Draft Mitigation Plan Swiftie Mitigation Bank Page 5 Table 14. Design Discharge Analysis Summary .......................................................................................... 37 Table 15. Boundary Shear Stress and Stream Power ................................................................................. 38 Table 16. Reference Reach Data Comparison ............................................................................................ 39 Table 17. Proposed Riparian Buffer Bare Root Plantings ........................................................................... 41 Table 18. Proposed Riparian Buffer Permanent Seeding ........................................................................... 42 Table 19. Routine Maintenance Components ........................................................................................... 45 Table 20. Proposed Monitoring Plan Summary ......................................................................................... 53 Table 21. Financial Assurances................................................................................................................... 55 Figures Figure 1 ......................................................................................................................... Project Location Map Figure 2 ........................................................................................................... Geographic Service Area Map Figure 3 ..................................................................................................................... USGS Topographic Map Figure 4 .................................................................................................................................. NRCS Soils Map Figure 5a-5b .................................................................................................................................. LiDAR Map Figure 6 ....................................................................................................................... FEMA Floodplain Map Figure 7a-7c ...................................................................................................................... Historic Aerial Map Figure 8 ........................................................................................................ Existing Aquatic Resources Map Figure 9 ................................................................................................... Proposed Mitigation Features Map Figure 10 .............................................................................................................. Proposed Monitoring Map Figure 11 .......................................................................................................................Proposed Buffer Map Figure 12 ......................................................................................................... Reference Site Locations Map Appendices Appendix A ........................................................................................................................ Design Plan Sheets Appendix B ................................................................................................... Existing Conditions Information Appendix C .......................................................................................................................... Site Analysis Data Appendix D ........................................................................................................... Site Protection Instrument Appendix E ............................................................................................................ USACE Assessment Forms Appendix F ..................................................................................................................... WOTUS Information Appendix G ............................................................................................................... Agency Correspondence Appendix H ........................................................................................................................... Site Photographs Appendix I .......................................................................... DWR Buffer Mitigation and Nutrient Offset Plan Draft Mitigation Plan Swiftie Mitigation Bank Page 6 1 Introduction 1.1 Background Water & Land Solutions, LLC (WLS) is pleased to submit this mitigation plan for the Swiftie Mitigation Bank (“Bank”). WLS proposes to develop this private commercial mitigation bank in the Upper Tar River Basin, 8-digit Hydrologic Unit Code (HUC) 03020101. The Bank will include one project site named Swiftie Mitigation Bank. The purpose of the Bank is to provide stream and wetland mitigation credits to compensate for unavoidable impacts to waters of the U.S. authorized under section 401 and 404 of the Clean Water Act, Section 10 of the Rivers and Harbors Act, and all applicable state statutes. The project site will provide 4,313.26 stream mitigation credits, 40.19 wetland credits, and 327 acres of easement that will be protected in perpetuity. This mitigation plan is prepared in accordance with C.F.R. §332.1-8 (2008), Compensatory Mitigation for Losses of Aquatic Resources, and is based on current United States Army Corps of Engineers (USACE) – Wilmington District Guidance, which is subject to the approval of the USACE District Engineer (DE) in consultation with the North Carolina Inter-Agency Review Team (IRT). 1.2 Bank Sponsor WLS will serve as the Bank sponsor for the Swiftie Mitigation Bank. The contact information for the sponsor is: Water & Land Solutions, LLC Attn: Catherine Roland 7721 Six Forks Rd, Suite 130 Raleigh, NC 27615 Phone: 919-614-5111 Email: catherine@waterlandsolutions.com 1.3 Mitigation Goals and Objectives The purpose of the proposed bank is to generate compensatory mitigation credits in the Tar River Basin (HU 03020101). The mitigation goals and objectives will be based on the current resource condition and functional uplift capacity of the project site watersheds to improve and protect aquatic resources comparable to stable stream and wetland systems within the Inner Coastal Plain ecoregion Inner Coastal Plain ecoregion. The proposed bank will address the general watershed goals and restoration opportunities outlined in the North Carolina Division of Mitigation Services (DMS) Tar-Pamlico River Basin Restoration Priorities Plan (NCDMS RBRP, 2018). The project goals include the following components: 1. Promote nutrient and sediment reduction in agricultural areas by restoring and preserving wetlands, streams, and riparian buffers, 2. Continue targeted implementation of projects under the Nutrient Offset and Buffer programs, as well as focusing NC Department of Transportation (NCDOT) sponsored restoration in areas where they will provide the most functional improvement to the ecosystem, 3. Protect, augment, and connect Natural Heritage Areas and other conservation lands. Draft Mitigation Plan Swiftie Mitigation Bank Page 7 To accomplish these goals, the following objectives will be measured to document overall project success: • Provide a floodplain connection to incised streams by lowering Bank Height Ratios (BHRs) to less than 1.2, thereby promoting stable channel conditions and more overbank flood flows, • Improve bedform diversity by increasing natural scour pool spacing and depth variability, • Improve water quality parameters by reducing nutrient inputs and treating agricultural runoff, • Increase native riparian buffer and wetland vegetation density/composition along streambanks and floodplain areas to meet a minimum 50-foot-wide and 210 stems/acre after the monitoring period, • Improve aquatic habitat and fish species diversity and migration through the addition of in-stream cover and native woody debris, • Site protection through a 327-acre conservation easement that will protect all streams, wetlands, riparian buffers, and aquatic resources in perpetuity. The existing conditions site assessment suggests that the proposed mitigation activities will result in a higher functioning aquatic ecosystem. The project goals and objectives address water quality stressors by reducing nutrient and sediment inputs through stream restoration, riparian buffer restoration, and riparian wetland restoration. Raising the local water table will improve hydrologic functions and biologic and habitat functions will improve by the revegetation of the riparian buffers. 2 Bank Establishment and Operation 2.1 Site Selection The Bank (35.9984° N, -77.6062° W) is located in Edgecombe County, North Carolina (Figure 1) within the Upper Tar River Basin (8-digit HUC 03020101). The Bank site will have an estimated conservation easement of approximately 327 acres. The Bank is located directly adjacent to and on the same property as the Swift Creek Permittee Responsible Mitigation (PRM) project (SAW-2016-02338). The Swift Creek PRM site is being used to mitigate impacts associated with the CSX Transportation, Inc’s Carolina Connector Intermodal Terminal project, located along the western edge of Edgecombe County, north of the City of Rocky Mount, and between the existing CSX mainline and Old Battleboro Road. The bank project and PRM project occupy distinct drainages and are not hydrologically reliant on each other. Located within the Upper Tar River watershed, the Swift Creek subbasin has been identified as possibly the most significant lotic creek ecosystem remaining along the Atlantic Seaboard (Alderman, et al., 1993). Swift Creek is a major tributary of the Tar River, flowing southeast from the City of Henderson in Vance County, then through Warren, Franklin, Nash, and Edgecombe Counties to its confluence with the Tar River above the Town of Tarboro in Edgecombe County. The overall goal of the mitigation site selection process is to enhance and improve the protection of this critical resource. To access the site from Raleigh, NC, follow I-40 East, take exit 14 for US-64 E/US-264 E toward Rocky Mt/Wilson, then continue onto I-87, Continue onto US-64 E, take exit 470 for NC-97/Atlantic Ave, turn right onto NC-97 E/Atlantic Ave, then turn right onto NC-97 E., Turn left onto New Hope Church Rd, turn right onto Battleboro-Leggett Rd, turn left onto Speights Chapel Rd, turn right onto White Oak Swamp Rd, and finally turn right onto NC-33 E. The site will be on the right in four miles. Draft Mitigation Plan Swiftie Mitigation Bank Page 8 2.2 Service Area The proposed Bank will provide compensatory mitigation credits for unavoidable impacts to waters of the United States in the Upper Tar River Basin 8-digit HUC 03020101 Geographic Service Area (GSA) (Figure 2). Use of the Bank to compensate for impacts outside the GSA may be considered by USACE on a case- by-case basis. The Bank will supply compensatory mitigation for stream impacts and riparian and non- riparian wetland impacts. 2.3 Site Protection Instrument The Sponsor owns the parcel on which the mitigation project will be developed, and a permanent conservation easement will be placed on the property as part of the mitigation project. The Sponsor will record a permanent conservation easement in the county Register of Deeds for the sites upon IRT bank approval. WLS has provided the deed to show ownership of the parcel in Appendix D. The current property owner information is listed in Table 1. Table 1. Parcel Ownership Information Owners of Record Parcel ID Number County Acres Deed Reference Palustrine Group LLC (Owned by WLS) 4812-20-1970 Edgecombe 595.68 1733/0006 The conservation easement will ensure that the site will be protected in perpetuity from land uses that are inconsistent with the MBI. Apart from USACE-approved activities (in coordination with the IRT), the site shall not be disturbed by activities that would adversely affect the intended extent, condition, or function of the project. The conservation easement shall not be removed or modified without prior written approval of the USACE. 2.4 Watershed Need and Feasibility As a result of implementing this Bank, WLS will restore, enhance, preserve, and protect approximately 11,010 linear feet of stream and 133.35 acres of wetland to address components defined in the RBRP (NCDMS, 2018). As a result of implementing this Bank, WLS will restore, enhance, preserve, and protect approximately 11,010 linear feet of stream and 133.35 acres of wetland to address components defined in the RBRP (NCDMS, 2018). In order to appropriately offset unavoidable impacts to Waters of the United States associated with growth and development, the proposed Bank will improve water quality and protect aquatic resource functions in the watershed. The technical feasibility of the Bank is assured due to WLS’ extensive experience with stream and wetland mitigation in North Carolina and throughout the Southeast. Examples of WLS’ success with stream and wetland restoration include the WLS Neuse 01 Umbrella Mitigation Bank and the WLS Neuse 02 Umbrella Mitigation Bank. The absence of fatal flaws, such as hydrologic trespass and threatened and endangered species, means the Bank is unlikely to be impeded by resource issues or objections from adjacent landowners. In addition to the riparian wetland and stream restoration improvements associated with the proposed project, the project will also utilize the NCDWR Nutrient Offset and Buffer Compensatory Mitigation Draft Mitigation Plan Swiftie Mitigation Bank Page 9 Program to establish nutrient offset and/or riparian buffer mitigation credits. The addition of extended buffers and nutrient removal potential associated with the project will further enhance and improve downstream water quality capabilities of the project in addition to improving habitat for a diverse suite of species. The buffer and nutrient offset project will be developed and implemented concurrently with the stream and wetland mitigation bank. Areas within the project that will be utilized for nutrient offset and/or riparian buffer mitigation credits will not overlap with the portions of the project where riparian wetland and stream mitigation credits are being proposed (Figure 11). Nutrient offset and riparian buffer mitigation credit generation is discussed in Appendix I of this document. 3 Baseline Information WLS performed an existing conditions assessment for the site by compiling and analyzing baseline information, aerial photography, and field data. The purpose of this assessment was to determine how aquatic resource functions have been impacted within the catchment area. Parameters such as watershed drainage area, percent impervious cover, land use, climate, and hydrology were evaluated. The following sub-sections describe the existing site conditions, impairment, and primary controls that were considered for developing an appropriate restoration design approach. 3.1 Watershed Characterization 3.1.1 Surface Water Classification The Bank is situated within the Swift Creek watershed in the north-central portion of Edgecombe County, NC. The project reaches include White Oak Swamp and Swift Creek, which both flow along the southwestern border of the Bank site. Swift Creek (Stream Index 28-78-(6.5)) and White Oak Swamp (Stream Index 28-78-7-(2)) are classified by the NCDEQ Division of Water Resources as ‘WS-IV’ and ‘NSW’ (Water Supply, Nutrient Sensitive Waters) waters within the project area downstream to their respective confluence (Swift Creek and Tar River). 3.1.2 Jurisdictional WOTUS WLS investigated on-site jurisdictional WOTUS using the USACE Routine On-Site Determination Method. This method is defined in the 1987 USACE Wetlands Delineation Manual and subsequent Atlantic and Gulf Coast Plain Regional Supplement (v2.0). Stream classification utilized the NCDWQ Stream Identification Form. Potential jurisdictional (JD) wetland areas as well as upland areas were classified using the USACE Wetland Determination Data Form. The results of the on-site field investigation indicated that all Project reaches were determined to be jurisdictional stream channels. A preliminary jurisdictional determination (PJD) was submitted in 2019 as a part of the Swift Creek Permittee Responsible Mitigation (PRM) Plan by the Palustrine Group. A portion of the parcel was used for the PRM project, the remaining area of the parcel will be for the Swiftie Mitigation Bank. The signed PJD is provided in Appendix F. The signed PJD is provided in Appendix F. Draft Mitigation Plan Swiftie Mitigation Bank Page 10 3.1.3 NC SAM and NC WAM WLS completed stream and wetland assessments using the NC Wetland Assessment Method (NC WAM, Version 5.0, 2016) and NC Stream Assessment Method (NC SAM, Version 2.1, 2015). WLS evaluated the NC WAM and NC SAM metrics relevant to the Bank wetland areas and stream reaches (See Appendix E). The Bank reaches scored ‘Low’ in the proposed restoration areas and ‘High’ in the preservation areas. Stream S400 was not rated because it is proposed for buffer mitigation. Wetland areas W01, W02, W04, W05 and W06 are classified as jurisdictional wetlands and were assessed using NC WAM. Wetland area W03 is not considered a jurisdictional wetland but contains hydric soils and is proposed for non-riparian wetland re-establishment. It is expected that as a direct result of plugging and filling ditches as well as revegetating these areas, wetland functions will be restored. The ecological assessments also incorporated qualitative and quantitative observations using historic aerials, field evaluations, and detailed topographic survey data collected across the site. The conclusions from these assessments help describe the current stream and wetland conditions and functional ratings, however, these methods are not intended for determining mitigation success on the site. Table 2. NCSAM/NCWAM Summary Reach Name S100 S200 Lower/Upper S300 Lower/Upper S400 S500 S600 S700 NCSAM Rating Low Medium/Medium High/Lower - High High High Wetland Name W01 W02 W03 W04 W05 W06 NCWAM Rating Low Low Low High High High 3.2 Land Use and Development Trends The Swift Creek watershed is primarily agricultural or forested undeveloped parcels that are privately owned. The Bank will extend the wildlife corridor and protect aquatic and terrestrial habitat in the project area through a permanent conservation easement (Figure 9). Currently, the project area consists of mostly row crops (cotton) that have been in near-continuous production for several decades. A review of topographic maps, field investigations of on-site soils, stream and wetland conditions, and LiDAR survey data provides clear evidence that the valley morphology and catchments support a Coastal Plain stream and riparian wetland system. The surrounding areas remain a largely agricultural community with some neighboring forested property and low-density home sites. US Census data indicate the community of Legette, NC is very small and has been declining in population for several years. Based on historic aerial photo review and development data, the project area and watershed has not appreciably changed or developed in several decades and will likely remain in dominant agricultural use for the foreseeable future. 3.3 Landscape Characteristics 3.3.1 Physiography and Geology The Upper Tar River Basin drains two EPA Level III ecoregions: Piedmont and Southeastern Plains. The upper reaches of the watershed cover the transitional Piedmont ecoregion (45). The subbasin is Draft Mitigation Plan Swiftie Mitigation Bank Page 11 represented by several EPA Level IV ecoregions including the Northern Outer Piedmont (45f), portions of the Triassic Basin (45g) and Carolina Slate Belt (45c). The lower reaches of the watershed are within the Southeastern Plains ecoregion (65). The subbasin is represented by two EPA Level IV ecoregions: the Rolling Coastal Plain (65m) and Southeastern Floodplains and Low Terraces (65p). Streams in the Southeastern Floodplains and Low Terraces are usually large, low gradient rivers and backwaters with ponds, swamps, and oxbow lakes. This ecoregion also provides important wildlife corridors and habitat (Griffith, 2002). The geologic unit at the project site is classified as ‘Tpy’ Yorktown Formation and Duplin Formation, Undivided. This type of sedimentary rock is characterized by underlying fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses, mainly in area north of Neuse River. The Duplin Formation is characterized by shelly, medium-to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River (NCGS, 1985). 3.3.2 Soils As shown on the NRCS Soils Map (Figure 4), there are fifteen mapped soils series existing in the floodplain soils surrounding the project reaches: Altavista fine sandy loam (AaA), Ballahack fine sandy loam (Ba, hydric), Chewacla silt loam (Cc), Conetoe loamy sand (CeB), Dogue fine sandy loam (DgA), Goldsboro fine sandy loam (GoA), Norfolk loamy sand (NoB), Rains fine sandy loam (RaA, hydric), Roanoke loam (Ro, hydric), State loamy sand (StB), Tarboro loamy sand (TaB), Wagram loamy sand (WaB), Wahee fine sandy loam (We), and Wehadkee silt loam (Wh, hydric), Wickham sandy loam (WkB). It is anticipated that as a direct result of implementing headwater stream restoration, ditch plugging, and revegetation, the natural wetland hydrology will be restored and allow the wetlands to regain their natural/historic functions. On-site hydric soil investigations of the project areas proposed for wetland restoration were conducted in July 2022 by a licensed soil scientist (LSS), George K. Lankford, LSS, with George K. Lankford, LLC (Appendix B). The findings were based on hand-turned auger borings. Two hydric soil map units were found that were historically a single contiguous wetland. One is likely a jurisdictional wetland and the other unit lacks hydrology. Mr. Lankford noted that areas of existing hydric soils have been manipulated by a combination of past and current agricultural and silvicultural practices (i.e. lateral ditching). 3.3.3 Climate Edgecombe County is generally hot and humid in the summer, and winter is moderately cold but short (USDA, 1979). Edgecombe County is generally hot and humid in the summer, and winter is moderately cold but short (USDA, 1979). The average growing season for the Bank site is 254 days, beginning March 15th and ending November 24th (Tarboro 1 S; NOAA, NC WETS table). The average annual precipitation in the Bank area is approximately 46.3 inches with a consistent monthly distribution, except for convective storm events or hurricanes that occur during the summer and fall months. Since January of 2020, the rain gauge at the Tarboro 1 S station has recorded 167.54 inches of rain. 3.3.4 Existing Vegetation The current use within the project area is primarily agriculture fields and forested wetlands. The northeastern portion on the site closest to Highway 33 has a horseshoe-shaped area of forested wetlands that encompasses S200. The natural community in the agricultural fields has been effectively removed Draft Mitigation Plan Swiftie Mitigation Bank Page 12 through tillage, ditching, agriculture, and silviculture. These practices have removed native vegetation and have altered the hydrology of the site in order for row crops to be successful. These practices have removed native vegetation and have altered the hydrology of the site in order for row crops to be successful. The southwestern portion of the proposed easement includes large wetlands located within the floodplain of Swift Creek & White Oak Swamp. The southwestern portion of the proposed easement includes large wetlands located within the floodplain of Swift Creek & White Oak Swamp. Prior to anthropogenic land disturbances, the riparian vegetation community likely consisted of Bottomland Hardwoods in the floodplain of Swift Creek/White Oak Swamp and a Mesic Mixed Hardwood community in the existing agricultural fields and forested area encompassing S200 (Schafale, 2012). S100: Most of the upstream portion flows through agricultural fields. The lower portion crosses into the forested area and ends in a wetland. Within the forested area, the canopy is dominated by larger hardwoods such as red maple and sweetgum. These species are also present as saplings and shrubs in the understory. Giant cane and Japanese stiltgrass are present within the wetland and along streambanks. Vine species include greenbriers. S200: This reach is within the western portion of the horse-shoe shaped forested wetland near Highway 33. Successional tree canopy consists of red maple, sweetgum and slippery elm. The understory and herbaceous species are sparse, with limited Chinese privet, greenbrier, and Japanese stiltgrass. S300: The riparian buffer along the entire length of S300 is partially to mostly wooded, however, the understory contains limited invasive species vegetation, mainly Chinese privet. Canopy cover includes red maple, loblolly pine, tulip poplar, and sweetgum. Smaller white oak, sweetgum and southern wax myrtle are present as saplings and shrubs. Ground cover species include giant cane, netted chain fern, cinnamon fern, switchgrass, false nettle, and greenbrier. S400: This reach flows along the edge of agricultural fields with a partially wooded riparian buffer. Canopy species include red maple and sweetgum, with additional saplings and shrubs present in the understory. Japanese stiltgrass is present along the streambanks. Vine species consists of poison ivy and greenbrier. S500, S600 and S700: These streams flow through a wetland network located within the floodplain of Swift Creek & White Oak Swamp. Native woody vegetation is present along all three reaches. In the canopy there is red maple, sweetgum, loblolly pine, river birch, and slippery elm. These species are also present as saplings and shrubs in the understory with some American sycamore present as well. Herbaceous species such as giant cane, Japanese stiltgrass, and netted chain fern are spread throughout. Vines include false nettle and greenbrier. Invasive Species Vegetation: There is a large presence of Chinese privet (Ligustrum sinense) within W01, W02, and W03 in the project area. After restoration, these areas will be monitored, and any invasive plants found within the project boundary will be treated to prevent expansion and establishment of a substantial invasive community. This will allow for a healthy, native riparian and upland plant community to dominate the area and help prevent future establishment of invasive species vegetation. Draft Mitigation Plan Swiftie Mitigation Bank Page 13 Table 3. Existing Project Site Vegetation Common Name Scientific Name Canopy Vegetation Red maple Acer rubrum Sweetgum Liquidambar styraciflua River birch Betula nigra Loblolly pine Pinus taeda Tulip poplar Liriodendron tulipifera Slippery elm Ulmus rubra Understory & Woody Shrubs Sweetgum Liquidambar styraciflua Red maple Acer rubrum Southern wax myrtle Morella cerifera American sycamore Platanus occidentalis River birch Betula nigra Loblolly pine Pinus taeda Slippery elm Ulmus rubra White oak Quercus alba Chinese privet Ligustrum sinense Herbaceous & Vines Giant cane Arundinaria gigantea Switchgrass Panicum virgatum Netted chain fern Woodwardia areolata Japanese stiltgrass Microstegium vimineum Roundleaf greenbrier Smilax rotundifolia Cinnamon fern Osmundastrum cinnamomeum False nettle Boehmeria cylindrica Poison ivy Toxicodendron radicans Invasives Chinese privet Ligustrum sinense 3.4 Existing Stream Conditions 3.4.1 Geomorphic Assessment WLS conducted geomorphic assessments of the Bank reaches to determine the current stream function, channel stability, and impact of past and current land use on the Bank’s aquatic resources. From historical aerial research, evidence was found to demonstrate that most of the Bank area has been heavily impacted from historic and current land use practices. A further review of topographic maps, field investigation of on-site features, stream and wetland reference data, and LiDAR imagery (Figure 5a-5b) provide clear evidence that the existing channel conditions appear to be indicative of valley signatures, valley slopes, and drainage basins that support headwater stream and wetland systems. The streams were broken down into seven reaches (S100, S200, S300, S400, S500, S600 and S700) totaling approximately 11,010 linear feet of existing streams. Field evaluations determined that a portion of project reaches S300, S400, S500, and S600 are perennial streams. Stream reaches S100, S200, S700 and portions of reaches S300, S400, S500, and S600 are anticipated to be intermittent. Table 4 provides reach Draft Mitigation Plan Swiftie Mitigation Bank Page 14 designations, approximate drainage area, stream status based on field analysis, and NCDWR stream classification form score. Table 4. Reach Watershed Drainage & Jurisdictional Status Project Reach Designation Drainage Area (ac) Drainage Area (mi2) Stream Status Based on Field Analyses NCDWQ Stream Classification Form Score S100 (Previously UT-C) 32 0.05 Intermittent 25.5 S200 (Previously UT-E) 90 0.140 Intermittent 24.25 (upper) 21.0 (lower) S300 (Previously UT-D) 44 0.069 Intermittent/Perennial 24.5 (upper) 30.5 (lower) S400 (Previously UT-H) 468 0.732 Intermittent/Perennial Not scored S500 (Previously UT-A) 279 0.436 Intermittent/Perennial 32.5 S600 (Previously UT-A) 348 0.543 Intermittent/Perennial 31.0 S700 (Previously UT-J) 33 0.052 Intermittent 26.5 Note: Different stream names were used in the approved PJD than what are being used for the Swiftie Mitigation Bank. Both the current reach names and the old reach names are listed in Table 4. The existing project reaches S100, S200, S300, and S400 have been degraded as a result of historic and current land use practices, including agriculture and silviculture. Agricultural practices, including channelization and routine maintenance, have severely impacted portions of the project reaches. The project streams are incised with documented channel manipulations (i.e. straightening, widening) and associated bank erosion. Clearing of stream buffers for agricultural purposes has removed or reduced high functioning riparian buffers. Currently, project reaches S100, S200, S300 and S400 are sources of sediment and nutrient contamination to the Swift Creek watershed. Table 5 characterizes the existing stream morphology based on general descriptions, channel evolution (Simon, 1989) and Rosgen stream classification (Rosgen, 1994). Table 5. Existing Channel Morphology Summary Project Reach Designation Existing Length (LF) Entrenchment Ratio (ER) Width/Depth Ratio (W/D) Bank Height Ratio (BHR) Existing Channel Type (Rosgen Classification) S100 996 1.5 11.9 4.7 G5 S200 1,111 13.5 51.4 1.0 G5/DA S300 1,944 1.1, 2.9 7.8, 2.6 3.7, 2.3 G5/incised E5 S400 692 1.7 8.6 3.6 G5 S500 2,498 6.1 28.3 1.0 C5 S600 1,389 6.8 22.3 1.0 C5 S700 635 3.0 49.3 1.0 C5 Draft Mitigation Plan Swiftie Mitigation Bank Page 15 3.4.2 Existing Reach Descriptions S100: S100 is a small headwater tributary that has been historically manipulated and channelized; however, it appears to generally be within the natural valley/low point along most of its length. The valley slope is approximately 0.8 percent, and the drainage area is 32 acres. The majority of the drainage area for S100 is in active agricultural management. Because the stream system has been channelized, the sinuosity is low (k=1.04). S100 has a top width of approximately 13.0 feet and a depth of 2.4 feet. The typical BHR is 4.7 and ER is 1.5. The riparian buffer along upper S100 is actively maintained within the agricultural fields and composed of woody vegetation in the lower end. The lower section in the wooded area has downcut to the natural floodplain elevation but remains mostly stable. Based on the channel conditions and historic anthropogenic disturbances, including channelization, S100 most closely resembles a Rosgen ‘G5’ stream type. S100 drains into the PRM project easement. S200: S200 is small headwater tributary that begins at an existing culvert crossing under NC Hwy 33 and flows southeast as an intermittent headwater tributary. S200 has a valley slope of 0.7 percent and drainage area of 90 acres. Based on field observations, the headwater stream channel and floodplain have been ditched in an attempt to drain surface hydrology for agricultural use. The historic channel manipulation in the upper section has led to poor bedform diversity. The lower reach is mostly stable with limited bank erosion observed in a few localized areas. Successional native woody vegetation was observed along most of this reach; however, Chinese privet was also documented. Successional native woody vegetation was observed along most of this reach; however, Chinese privet was also documented. Based on the existing channel conditions and anthropogenic disturbances, S200 is classified as a Rosgen ‘G5/DA’ stream type. S100 looking downstream showing channelization and adjacent agricultural fields with lack of native buffer vegetation. Looking upstream on S200 showing ditched conditions with poor bed and bank definition. Draft Mitigation Plan Swiftie Mitigation Bank Page 16 S300: S300 is headwater tributary that originates from a heavily ditched area containing hydric soils. The stream has been channelized and straightened along its upper length. Upper S300 is highly incised and lacks natural bedform features. The valley slope is approximately 0.5 percent, and the natural drainage area is 44 acres, which excludes the ditched non-riparian wetland area. Because the upper channel has been heavily manipulated, the sinuosity is low (k=1.07). The typical BHR for upper S300 is greater than 3.0 until the reach slope flattens as it transitions towards the Swift Creek floodplain and meander cutoff. Although the lower reach is moderately incised, it is mostly stable and experiencing localized lateral instability and bank erosion. The riparian buffer along the entire length of S300 is partially to mostly wooded, andhoweverand, the understory contains limited invasive species vegetation, mainly Chinese privet. Based on the existing conditions, S300 is classified as a Rosgen ‘G5/incised E5’ stream type. S400: S400 begins downstream of an existing culvert under a farm access road. S400 has been channelized and straightened along much of its length, as evidenced by the spoil piles and levees along the floodplain. S400 BHR is 3.6 and ER is 1.7 and lacks natural bedform features until the stream begins downcutting towards the Swift Creek floodplain and meander cutoff. This reach exhibits localized streambank erosion and associated soil loss. The valley slope is approximately 0.9 percent, and the drainage area is 468 acres. The majority of the drainage area for S400 is within active agricultural fields with an adjacent forested area. Because the stream system has been channelized, the sinuosity is very low (k=1.02) and typical BHR for S400 is greater than 2.0. The riparian buffer along the entire length is partially wooded. Based on the existing conditions and sand and clay bed materials, S400 is classified as a Rosgen ‘G5’ stream type. This reach is not proposed for stream credit. S500: S500 begins immediately downstream of the PRM project boundary and connects with a restored stream system that flows towards the Swift Creek floodplain. S500 has a valley slope of 0.14 percent and drainage area of 279 acres. Based on field observations, the channel flows across meander cutoffs and backwater sloughs, although portions of the channel and floodplain areas appear to have been historically S400 looking upstream showing channelization with wooded buffer. Looking upstream along S500 showing stable, meandering channel. Looking upstream at incised channel conditions along S300 (enhancement area). Draft Mitigation Plan Swiftie Mitigation Bank Page 17 ditched. The reach is stable and native woody vegetation was observed along a majority of this reach. Based on the existing channel conditions and limited anthropogenic disturbances, S500 is classified as a Rosgen ‘C5’ stream type. S600: S600 continues downstream of S500 and eventually flows off the project boundary towards its confluence with Swift Creek. S600 has a valley slope of 0.24 percent and drainage area of 348 acres. Similar to S500, the channel flows across meander cutoffs and backwater sloughs, although some channel and floodplain areas appear to have been historically ditched. The reach is stable and native woody vegetation was observed along most of this reach. Based on the existing channel conditions and limited anthropogenic disturbances, S600 is classified as a Rosgen ‘C5’ stream type. S700: S700 is a small headwater tributary that flows directly into White Oak Swamp. The valley slope is approximately 0.6 percent, and the drainage area is 33 acres. The reach is stable and exhibits minimal bank erosion. The channel appears to be within its natural valley, and the existing buffer is well vegetated. This headwater stream and wetland system is considered to be high functioning, and the existing riparian buffer helps to filter pollutants (nutrients) that would otherwise go straight into White Oak Swamp. Based on the existing channel conditions and limited anthropogenic disturbances, S700 is classified as a Rosgen ‘C5’ stream type. S600 downstream view demonstrating native woody vegetation and a stable stream channel. Looking upstream along S700 showing vegetated buffer and stable bedform conditions. Draft Mitigation Plan Swiftie Mitigation Bank Page 18 3.5 Existing Wetland Conditions 3.5.1 Plant Community Characterization The existing vegetation community is a mature forest comprised of red maple, sweet gum, loblolly pine and water oak. A sparse understory is comprised of red maple, American hornbeam, and sweetgum. A herbaceous layer including Christmas ferns, greenbrier, and poison ivy are also present. W04, W05, and W06 are verified jurisdictional wetlands proposed for wetland preservation. W04, W05, and W06 are verified jurisdictional wetlands proposed for wetland preservation. W01 is also a verified jurisdictional wetland that is proposed for wetland enhancement. W02 is a verified non-riparian wetland that is proposed for wetland enhancement. It is expected that as a direct result of plugging and filling floodplain ditches, implementing the stream restoration and stream enhancement along S200, and revegetation in these areas, wetland functions will be restored to W01 and W02. W03 is not considered a jurisdictional wetland but contains hydric soil areas proposed for non-riparian wetland re-establishment. It is expected that as a direct result of plugging and filling ditches and revegetation in these areas, wetland functions will be restored. All existing and proposed wetlands have a continuous surface connection with a permanent water (stream). 3.5.2 Hydrological Characterization Site hydrology for this landscape setting is derived from a combination of upland runoff and groundwater seepages present along the upper terrace slopes. Combined with slow runoff from these depressional terrace landforms, the drainages contain jurisdictional wetlands throughout the delineated hydric soils. Groundwater discharge also provides a significant source along slope breaks and floodplains of White Oak Swamp and Swift Creek. Historically, the groundwater table in the upper site was likely higher due to the concave landscape and the restrictive, clayey subsoil perching the water table. The existing channelized streams have a network of lateral ditches, surface modifications, and shallow crowning which prevent prolonged surface ponding, lower the groundwater table, and limit the natural wetland hydroperiods. The streams represent a significant source of hydrology at the site along with numerous seepage areas present along the edges of the floodplain. Many of the shallow ditches have been dug to remove slope seepage adjacent to the fields. Based on the location and elevation of hydric soils, the site will provide adequate hydrology to support wetland restoration across the site. Five (5) automated groundwater wells were installed on site to evaluate the range of hydrologic conditions within the Bank. One well was located in the jurisdictional wetland W01 and one in W02. Three (3) wells were placed in the hydric soils area where wetland re-establishment is proposed. This well data will help provide the basis for comparing pre- and post-construction groundwater hydrology. The wells were installed in March 2023 and the data summary is included in Appendix B. WLS will identify trends in water table depth throughout the pre-restoration monitoring period that reflects seasonal rainfall as well the hydrologic interaction with the disturbed stream. The automated data loggers (HOBO U20L-04) are programmed to record water table levels every 12 hours. Draft Mitigation Plan Swiftie Mitigation Bank Page 19 3.5.3 Soil Characterization Detailed soils mapping, conducted by a licensed soil scientist (George K Lankford, LLC), determined that jurisdictional wetlands and hydric soils are present within the Bank area (See Figure 8 and Hydric Soils report in Appendix B). The soil borings exhibited hydric soil indicators within 12 inches of the soil surface within floodplain depressions and drained soils across the site. Approximately 162 shallow borings ranging from 18 to 40 inches were evaluated to characterize the soils and delineate the hydric soil boundaries. Based upon field observations, the actual site conditions appear representative of the expected range of soil characteristics described by NRCS mapping units with hydric soils present in the floodplains. The soil evaluation found hydric indicators throughout large areas of the floodplain. Based on recorded profiles, the most common hydric soil indicators were A11- Depleted Below Dark Surface and S7- Dark Surface. All hydric soil profiles recorded meet a dark surface indicator. In addition to these indicators, soil borings exhibited indicators including A9- 1-cm Muck, A12- Thick Dark Surface, S5- Sandy Redox, F3 - Depleted Matrix, F6 - Redox Dark Surface, and F13 – Umbric Surface. Subsoils below the dark surface often exhibited distinct redoximorphic mottles. The deep dark surfaces observed contain high organic content and require long periods of saturation or inundation for development. Historically shallow depressions and mucky textured surfaces were likely more common prior to cultivation. To form the thick black surfaces and mucky layer of these soil indicators suggest this site was historically very wet and contained areas having long term seasonal saturation to semi-permanently flooded conditions. Drainage and tillage of soils results in increased aeration of surface horizons, leading to higher soil temperatures that increase microbial oxidation of organic carbon. Cultivation destroys indicators such as the A9, S5, and F6 indicators by destruction of mottles and mixing of thinner layers of organic muck. Historically mucky textured surfaces were likely more common prior to cultivation due to the concave topography of this site. The loss of soil organic material eventually results in a loss of the darker surface color. This loss of organic matter was observed in the black surface color in the existing wetland areas compared to the soils found in the field. The hydric soils in the floodplain of this project reflect characteristics of the NRCS map units, most notably the Roanoke soil. Based on mitigation guidance for Common Coastal Plain Soils Series (US Army Corps of Engineers 2016), the Roanoke series (Typic Endoaquults) is expected to have a natural hydroperiod of between 9 and 12 percent during the growing season where the water table is within 12 inches of the surface. Along the edges of the toe of slope, soils appear to be most similar to the Rains series. Mitigation guidance for a Rains soil (Typic Paleaquults) is expected to have a natural hydroperiod of between 10 and 12 percent. After restoration, due to natural variations in local topography and internal drainage of soils in the floodplain, a local hydroperiod slightly higher or lower than this guidance is expected. Areas having slightly higher elevations may experience slightly lower hydroperiods while depressional areas should exceed 16 percent. Upland soils surrounding the floodplain are not included in the Corps guidance and are not anticipated to have significant hydroperiods. Draft Mitigation Plan Swiftie Mitigation Bank Page 20 3.6 Potential Site Constraints 3.6.1 Existing Easements on the Site The Bank conservation easement is located on the same parcel as the conservation easement of the Swift Creek PRM Mitigation Project. The Swiftie Bank easement will be contiguous with the Swift Creek PRM easement in a few areas. 3.6.2 Utility Corridors within the Site An overhead powerline easement is located outside of the conservation easement at the top of S200. 3.6.3 Aviation Facilities Based on a review using Google Earth, the nearest airport to the project site is Tarboro-Edgecombe Airport, which is located approximately 5.5 miles southeast of the site. The project is not anticipated to affect aviation. There are no other aviation facilities within five miles of the project area. 3.6.4 Mineral or Water Rights Assurance There are no known mineral or surface water rights issues within or adjacent to the site properties. 3.6.5 FEMA Floodplain Compliance and Hydrologic Trespass Review of the Federal Emergency Management Agency’s (FEMA) National Flood Insurance Program’s Digital Flood Insurance Rate Mapping (DFIRM) panel 3720480200K, 3720481200K, 3720480100K and 3720481100K, effective June 2, 2015, found that the lower portions of S100, S300 as well as the entirety of S500, S600 and S700 are located within the FEMA regulated floodplain (“Zone AE and the Floodway”) (Figure 6). WLS analyzed the potential impact of any grading or construction activities and submitted the required documentation to Katina Braswell, Planning Director of Edgecombe County. Based on the project design, there will be no grading or construction activities located within the Swift Creek regulatory floodplain. Therefore, no flood modeling will be required, and hydrologic trespass is not a concern. 3.6.6 Invasive Species Vegetation There is not a significant presence of invasive species vegetation in the project area. Within the wooded areas there are small clusters of Chinese privet (Ligustrum sinense). After restoration, these areas will be monitored, and any invasive plants found within the project boundary will be treated to prevent expansion and establishment of a substantial invasive community. This will allow for a healthy, native riparian and upland plant community to dominate the area and help prevent future establishment of invasive species vegetation. 3.6.7 Potential Future Site Risk and Uncertainties Future site risks and uncertainties include, but are not limited to, development, silviculture, and infrastructure maintenance. Historic aerial imagery indicates that the Bank has been used extensively for agricultural and silviculture purposes. The surrounding areas remain in an agricultural community with some neighboring forested property and small home sites. Due to low development potential, the areas outside of the Bank will likely remain in agricultural use. The project area is not adjacent to any roads that Draft Mitigation Plan Swiftie Mitigation Bank Page 21 might need future maintenance. Project streams and wetlands were designed to be self-maintaining and resilient in a dynamic landscape. Riparian buffers in excess of 200 feet in many areas of the project will protect the project reaches and wetland areas from changes in watershed hydrologic regimes. The Tar River Land Conservancy (TRLC) will be the long-term steward of the conservation easement and eventual property owner of the Bank site. They have a vision that in thirty years the site will be a re- emerging forest over the majority of the site with a mosaic of stand types and associated habitat conditions. They anticipate that the property will be made open to the public for passive recreational use which may include hiking, nature observation, and nature/conservation education opportunities. They anticipate that the property will be made open to the public for passive recreational use which may include hiking, nature observation, and nature/conservation education opportunities. A blue trail could exist in the future along Swift Creek if access to this resource can be planned. Designated areas outside of the conservation easement in the uplands may be more actively managed relying on disturbance regimes such as burning, disking, mechanical, and chemical treatments for vegetation control to allow for more open conditions and maintain early succession habitat. Throughout the property, a network of foot and single-track trails will be installed to allow for public access to the unique, diverse natural features of the site. The proposed network of foot and single-track trails will not allow for vehicular use and will utilize mulch and other natural permeable materials in their construction. These trails will be outside of creditable areas in the Bank. Additionally, educational signage may be placed in various locations along the trails. Sensitive areas may have boardwalks or other features to allow for public access and to limit the damage from foot traffic. No new roads are proposed to be constructed within the upland portions of the Bank. The existing and proposed interior roads will only be utilized for management and educational activities as well as public safety. 3.7 Regulatory Considerations 3.7.1 Cultural Resources The project is not anticipated to have any adverse impacts on cultural or historic resources. There are no sites currently listed on the National Register of Historic Places (NRHP) within the project area. The nearest site is the Edward Cotton House (HPO Site ID: ED0721) which is approximately 0.8 miles from the project site. On-site investigations and discussions with the previous landowners have not disclosed any potential resources or occurrences of this type on the property. Therefore, the proposed project activities should have no effect on any historic properties eligible for listing in the National Register, and SHPO did not have any comments. 3.7.2 Threatened and Endangered Species Based on a review of the US Fish and Wildlife Service (USFWS) database and IPAC, there are currently five federally listed threatened and endangered species known to occur in Edgecombe County: Neuse River Waterdog (Necturus lewisi), Carolina Madtom (Noturus furiosus), Atlantic Pigtoe (Fusconaia masoni), Tar River Spinymussel (Parvaspina steinstansana), and Yellow Lance (Elliptio lanceolata). The Neuse River Waterdog and the Carolina Madtom are present in Swift Creek adjacent to the Bank, and there is the potential for both species to be found in the lower tributaries of the Bank. The stretch of Swift Creek Draft Mitigation Plan Swiftie Mitigation Bank Page 22 adjacent to the Bank is critical habitat for the Neuse River Waterdog and Carolina Madtom. A net survey in July 2018 captured a Tricolored bat (Perimyotis subflavus) near the Bank boundary. A net survey in July2018 captured a Tricolored bat (Perimyotis subflavus) near the Bank boundary. The Tricolored bat is proposed for listing as an endangered species, and a decision to list may be made as soon as September 2023. If the Tricolored bat is listed prior to the construction of the Bank, WLS will reinitiate the consultation of USFWS. Project implementation is not anticipated to have a negative impact on these listed species. Section 6.7.1 discusses the erosion control measures that will be implemented during construction to protect the Neuse River Waterdog and the Carolina Madtom. WLS will coordinate with the appropriate agencies should a determination be required for permitting. The PRM project did not encounter any protected species issues during permitting as the Neuse River Waterdog and the Carolina Madtom were not listed, and critical habitat was not yet designated. The USFWS comments to the prospectus public notice are addressed in this section and the agency correspondence is provided in Appendix G. 3.7.3 Conditions Affecting Hydrology Two existing road culvert crossings are located outside of the project area. The first culvert crossing is located under State Hwy 33 upstream of S200, and the second culvert crossing is located upstream of S400. The culvert locations will remain, and no adjustments will be made to the reaches in and around the culverts. There are also several ditches throughout the site. These ditches were historically used to drain wetlands and create arable land for agricultural production. Many of these ditches will be plugged during restoration activities to maximize wetland hydrology as shown on the design plans and Figure 9. The ditches flowing into S100 and S400 will not be plugged. However, several ditches that tie into S200 and S300 will be plugged to raise local groundwater elevations and to enhance/re-establish degraded wetlands. WLS has not observed any recent beaver activity in the proposed project area along Swift Creek. If beaver activity is observed, WLS will trap and remove any beavers and dams to ensure Bank success after construction. 3.7.4 Adjacent Land Use Site-adjacent land use is primarily agricultural and silvicultural. None of these land uses will have negative impacts on the operation of the site. 4 Functional Uplift Potential Harman et al. (2012) provides a framework for conducting function-based assessments to develop project goals and objectives based on a site’s restoration potential and functional uplift. The framework is based on the Stream Functions Pyramid (SFP) which is a conceptual model that can be used to help define project goals and objectives by linking them to stream functions. Stream functions are separated into a hierarchy of functions and structural measures, ranging from Level 1 to Level 5, and include the following functional categories: Hydrology (Level 1), Hydraulic (Level 2), Geomorphic (Level 3), Physiochemical (Level 4), and Biological (Level 5). Stream functions are separated into a hierarchy of functions and structural measures, Draft Mitigation Plan Swiftie Mitigation Bank Page 23 ranging from Level 1 to Level 5, and include the following functional categories: Hydrology (Level 1), Hydraulic (Level 2), Geomorphic (Level 3), Physiochemical (Level 4), and Biological (Level 5). Function- based goals and objectives were considered that relate restoration activities to the appropriate parameters from the SFP framework, which are based on existing conditions, site constraints and overall restoration potential. To accomplish these site-specific goals, the following functional objectives will be measured to document overall project success as described in Table 6. The project’s functional uplift improvements will be measured based on the uplift of hydraulics and geomorphology. Table 6. Function-Based Goals and Objectives Summary Functional Category (Level) Functional Goal / Parameter Functional Design Objective Hydrology (Level 1) Improve Base Flow Improve and/or remove existing stream crossings, restore a more natural flow regime, and improve aquatic passage. Hydraulics (Level 2) Reconnect Floodplain / Increase Floodprone Area Widths Lower BHRs to <1.2 and increase ERs at ≥2.2 Geomorphology (Level 3) Improve Bedform Diversity Increase riffle/pool percentage and pool-to- pool spacing ratios. Increase Lateral Stability Improve cross-section values to stable reference conditions. Establish Riparian Buffer Vegetation Plant native species vegetation a minimum 50’ wide from the top of the streambanks with a composition/density comparable to reference condition. Physiochemical (Level 4)Physiochemical (Level 4) Improve Water Quality Establish 200 ft wide riparian buffers that will filter excess nutrients. Biology (Level 5) Improve Macroinvertebrate Community and Aquatic Species Health Provide substrate and bedform diversity and incorporate native woody debris into channel. 4.1.1 Restoration Potential and Project Benefits Summary Restoration projects commonly provide functional lift of Level 2 and 3 parameters. To achieve goals in Levels 4 and 5, a combination of reach scale restoration and upstream watershed health must be measurable and sustainable. The Bank is expected to provide numerous water quality and ecological benefits within the smaller catchments. While many of these benefits focus on the immediate project area, others, such as nutrient removal and sediment reduction also provide downstream benefits. The expected project benefits and ecological improvements are summarized in Table 7. Draft Mitigation Plan Swiftie Mitigation Bank Page 24 Table 7. Project Benefits Summary Benefits Related to Hydrology (Level 1) Rainfall/Runoff Restoring and enhancing 200-foot forested riparian buffers and alleviating concentrated flow points will decrease the volume and intensity of runoff into the system. Benefits Related to Hydraulics (Level 2) Floodplain Connectivity Restoration practices will restore proper floodplain connection by establishing stable bank height ratios and entrenchment ratios. Surface Storage and Retention Floodplain connectivity will allow for more surface area for surface storage and retention. Groundwater Recharge/ Hyporheic exchange Raising and reconnecting the restored stream bed as well as plugging ditches throughout the site will promote higher water table conditions and more hyporheic exchange. Benefits Related to Geomorphology (Level 3) Proper Channel Form An appropriate channel form for the valley type and slope will allow for a self-sustaining system. Sediment Transport Decreasing stream bank erosion, connecting with the floodplain, and removing areas from pasture grass will decrease the sediment coming from the restored system. Riparian Buffer Vegetation Restoring and enhancing 200-foot forested riparian buffers will allow for canopy cover and large woody debris in the system. Bioengineering Treatments The use of woody in-stream structures will ensure channel stability while also providing large woody debris. Benefits Related to Physiochemical (Level 4) – Benefits Related to Physiochemical (Level 4) – not monitored Nutrient Reduction Restoration practices will exclude streams from adjacent agricultural and silvicultural use and provide functional riparian buffers of sufficient width to provide nutrient reductions. Sediment Reduction Restoration practices will exclude streams from adjacent agricultural and silvicultural use, provide functional riparian buffers of sufficient width, and stabilize stream bank erosion to provide sediment reductions. DO, NO3-, DOC Concentration Restored buffers will also provide shade, reduce water temperatures, and increase dissolved oxygen concentrations. The restored stream bed will promote higher water table conditions and facilitate denitrification. Benefits Related to Biology (Level 5) – not monitored Terrestrial and Aquatic Habitat Restoration practices will restore appropriate habitats, reduce sediment and nutrient loads, and provide increased shading and organic material inputs for aquatic organisms. Landscape Connectivity Restoration practices will restore a healthy stream corridor, promoting aquatic and terrestrial species migration, and protect their shared resources in perpetuity. Restoration practices will restore a healthy stream corridor, promoting aquatic and terrestrial species migration, and protect their shared resources in perpetuity. Draft Mitigation Plan Swiftie Mitigation Bank Page 25 5 Determination of Credits The Project consists of stream restoration, enhancement and preservation, riparian wetland enhancement and preservation, and non-riparian wetland re-establishment and enhancement to achieve the highest ecological lift possible. The proposed mitigation credit types, ratios, and design approaches were discussed with the IRT during the prospectus site visit and described further in the meeting minutes located in Appendix G. 5.1 Proposed Mitigation Credit Types Proposed mitigation credit types are Stream Mitigation Credits (SMCs) and riparian and non-riparian Wetland Mitigation Credits (WMCs). See Tables 8 and 9 for the proposed credit summary. Table 8. Proposed Stream Mitigation Credits (SMCs) Project Reach Type of Mitigation Existing Stream Length (LF) Proposed Creditable Length (LF) Ratio Stream Mitigation Credits (SMCs) S100 Stream Restoration (HWV) 6682 6793 1:1 679 S100 Stream Restoration 272 297 1:1 297 S100 Stream Preservation 154 154 7.5:1 20.53 S200 Stream Restoration (HWV) 2,366 2,262 1:1 2,262 S300 Stream Enhancement II 691 691 3:1 230.33 S300 Stream Preservation 1,318 1,318 7.5:1 175.73 S400 No Stream Credit 676 676 - - S500 Stream Preservation 2,471 2,471 7.5:1 329.47 S600 Stream Preservation 1,393 1,393 7.5:1 185.73 S700 Stream Preservation 1,001 1,001 7.5:1 133.47 Totals 11,010 10,942 4,313.26 Note 1: No stream mitigation credits were calculated outside the conservation easement boundaries. Note 2: Existing stream length is surveyed jurisdictional stream length, not valley length. Note 3: Headwater valley (HWV) stream mitigation credits calculated using valley length. Draft Mitigation Plan Swiftie Mitigation Bank Page 26 Table 9. Proposed Wetland Mitigation Credits (WMCs) Wetland Area Type of Mitigation Proposed Wetland Acreage (AC) Ratio Wetland Mitigation Credits (WMCs) W01 Riparian Wetland Enhancement 3.31 2:1 1.66 W02 Riparian Wetland Enhancement 1.28 2:1 0.64 W02 Non-riparian Wetland Enhancement 3.80 2:1 1.90 W03 Riparian Wetland Re-establishment 2.69 1:1 2.69 W03 Non-riparian Wetland Re-establishment 19.61 1:1 19.61 W04 Wetland Preservation 1.18 7.5:1 0.16 W05 Wetland Preservation 99.20 7.5:1 13.23 W06 Wetland Preservation 2.29 7.5:1 0.31 Total 133.35 40.19 Note 1: No wetland mitigation credits were calculated outside the conservation easement boundaries. Note 2: No wetland mitigation credits were calculated within the 100-foot wide HW stream corridor. 5.2 Credit Release Schedule All credit releases will be based on the total number of mitigation credits generated as reported in the approved mitigation plan and verified by the as-built survey. The initial credit release will be based on the proposed stream restoration lengths (SMCs) and wetland acreages (WMCs) as approved in the final mitigation plan. The credit ledger will be managed by WLS and approved by the USACE District Engineer (DE) and IRT. The estimated credits will be released following current USACE guidance, as shown in Table 10 below. The initial credit release milestone shall include approval/execution of MBI, approval of final mitigation plan, securing the Project site, financial assurances delivery, long-term protection mechanism delivery, documentation of the establishment of endowment/escrow account, title opinion delivery, and issuance of any permits necessary for construction. Draft Mitigation Plan Swiftie Mitigation Bank Page 27 Table 10. Credit Release Schedule Credit Milestone Release Activity SMCs: Interim Release SMCs: Total Released WMCs: Interim Release WMCs: Total Released 1 Project Site Establishment (as defined above) 15% and all stream preservation credits* 15% and all stream preservation credits* 15% and all wetland preservation credits* 15% and all wetland preservation credits* 2 Completion of all initial physical and biological improvements made pursuant to the Mitigation Plan 15% 30% 15% 30% 3 Year 1 Monitoring Report demonstrates that interim performance standards have been met 10% 40% 10% 40% 4 Year 2 Monitoring Report demonstrates that interim performance standards have been met 10% 50% 10% 50% 5 Year 3 Monitoring Report demonstrates that interim performance standards have been met 10% 60% 15% 65% 6 Year 4 Monitoring Report demonstrates that interim performance standards have been met 5% 65% (75%**) 5% 70% 7 Year 5 Monitoring Report demonstrates that interim performance standards have been met 10% 75% (85%**) 15% 85% 8 Year 6 Monitoring Report demonstrates that interim performance standards have been met 5% 80% (90%**) 5% 90% 9 Year 7 Monitoring Report demonstrates that interim performance standards have been met 10% 90% (100%**) 10% 100% * Initial release of wetland credits and stream credits will be 15% of the total restoration and enhancement credits and 100% of the preservation credits. **10% reserve of credits to be held back until the bankfull event performance standard has been met. Draft Mitigation Plan Swiftie Mitigation Bank Page 28 6 Mitigation Work Plan The project will involve the potential for stream restoration, enhancement, and preservation of six main reaches (S100, S200, S300, S500, S600 and S700) totaling approximately 11,010 linear feet and the restoration, enhancement, and preservation of 133.35 acres of riparian and non-riparian wetlands (Figure 9). The design approach utilizes common mitigation practices and will appropriately address the jurisdictional streams and wetlands at the site, including protecting or enhancing riparian buffers along all the Project stream reaches and wetlands, providing the maximum functional uplift with the goal of improving aquatic functions to a degraded resource. The design approach and mitigation work plan are described in the following subsections. 6.1 Design Approach The project will involve the stream restoration and enhancement of three streams (S100, S200, and S300) as shown on Figure 9. The design utilizes a Priority Level I & II and headwater valley restoration approaches. The Project appropriately addresses all the jurisdictional stream reaches at the project site, including restoring riparian buffers along all the project stream reaches currently in agriculture and restoring and preserving riparian and non-riparian wetlands. Many of the disturbed riparian buffers in restoration reaches are completely or partially cleared. The proposed project will provide adequate floodplain access to all stream reaches. Priority Level I Restoration and headwater valley restoration are proposed to reconnect the project streams with their geomorphic floodplains. In upper and lower transition sections, the following elements will be incorporated into the Priority Level II Restoration design and construction: • Floodplain bench excavation grading will extend a minimum of 1.5 bankfull widths beyond the stream belt width such that meandering floodplains are not created. • All proposed floodplains will be constructed such that they are over-excavated to accommodate replacement of topsoil. • Design and construction oversight measures will ensure the proper harvesting, segregating, stockpiling, storage, handling, overall management, and replacement of A and B soil horizon materials onto the excavated floodplain. • Constructed return slopes between the outer edge of the excavated floodplain and the terrace will be a minimum of 5:1. The Project will provide increased floodplain access throughout the project area for all reaches and will be monitored to demonstrate successful floodplain function. The stream channel design included analysis of the hydrology, hydraulics, shear stress, sediment transport, and bankfull channel dimensions. WLS considered three methods (field indicators if present, published regional curve information, and hydraulic modeling) for estimating a design bankfull discharge. The hydrology and hydraulics analysis evaluated a range of lower flow discharges and flood frequency curves to help determine an appropriate design discharge. The design discharge was used to select an appropriate channel geometry and help monitor long-term project performance. Draft Mitigation Plan Swiftie Mitigation Bank Page 29 The wetland restoration approach is supported by on-site soils investigations, surface flow observations, topography, and groundwater hydrology data. Hydric soil polygons are mapped within the existing S200 floodplain corridor and adjacent field. The combination of headwater valley restoration, plugging ditches, and minor grading of spoil and fill will restore the hydrologic conditions that formed the in-situ hydric soils. 6.2 Headwater Valley Stream Approach A headwater stream restoration approach is proposed for project reaches S100-R1 and S200 R1-R4. Prior to disturbed conditions, these systems existed as low to medium gradient headwater stream and wetland complexes within the natural valley, exhibiting moderately defined channels with a diffuse flow path and increased meander lengths. This restoration approach is supported by preliminary soils investigations, surface flow observations, topography, and comparing reference site data. Hydric soils are mapped along the riparian corridors of the proposed stream reaches, and the similar soils series are mapped along the adjacent restoration reaches. These shallow drainage ways are commonly observed in this area and typically support headwater stream channels and wetland plant communities. Headwater stream restoration activities will include excavating a broader floodplain at or slightly above the existing bed elevation, at the historic valley centerline, and will seek to restore groundwater hydrology and connection of surface flows. The design concept will address the current channel’s dimension, pattern, and profile to create stable conditions. Appropriate use of in-stream structures will consist of hardwood logs and woody materials to provide increased stability (both lateral and vertical) and aquatic habitat. 6.3 Design Criteria Selection Selection of design criteria (Table 11) was based on a combination of approaches, including review of reference data, regional curve analysis, flow regime equations, evaluation of monitoring results from successful past projects, and best professional judgment. The proposed stream design parameters also considered the USACE Stream Mitigation Guidelines (USACE, 2003) and the Natural Channel Design Checklist (Harman, 2011) as described in Section 6.4. Draft Mitigation Plan Swiftie Mitigation Bank Page 30 Table 11. Proposed Design Parameters Parameter S100-R1 S100 R2 S200-R1 S200-R3/R4 Drainage Area, DA (sq mi) 0.040 0.050 0.170 0.20 Stream Type (Rosgen) DA C DA DA Bankfull Riffle XSEC Area, Abkf (sq ft) 1.25 1.25 2.2 3.5 Bankfull Mean Velocity, Vbkf (ft/sec) 1.20 1.2 1.59 1.14 Bankfull Riffle Width, Wbkf (ft) 4.11 4.11 5.35 6.48 Bankfull Riffle Mean Depth, Dbkf (ft) 0.30 0.3 0.41 0.54 Width to Depth Ratio, W/D (ft/ft) 13.5 13.5 13.0 12.0 Width Floodprone Area, Wfpa (ft) 16-46 50.8-61.0 59-87 41-94 Entrenchment Ratio, Wfpa/Wbkf (ft/ft) 3.9-11.2 12.4-14.8 11-16.3 6.3-14.5 Riffle Max Depth Ratio, Dmax/Dbkf 1.4 1.4 1.35 1.35 Bank Height Ratio, Dtob/Dmax (ft/ft) 1.0 1.0 1.0 1.0 Meander Length Ratio, Lm/Wbkf 7.0-14.0 7.0-14.0 7.0-14.0 7.0-14.0 Radius of Curvature Ratio, Rc/Wbkf 2.0-3.0 2.0-3.0 2.0-3.0 2.0-3.0 Meander Width Ratio, Wblt/Wbkf 3.5.8.0 3.5-8.0 3.50-8.0 3.5-8.0 Channel Sinuosity, K 1.06 1.23 1.0 1.02 Channel Slope, Schan (ft/ft) 0.0034 0.0162 0.0146 0.0038 Riffle Slope Ratio, Sriff/Schan 1.1-1.8 1.2-1.5 1.2-1.5 1.2-1.5 Pool Slope Ratio, Spool/Schan 0.0-0.4 0.0-0.2 0.0-0.2 0.0-0.2 Pool Width Ratio, Wpool/Wbkf 1.7 1.7 1.7 1.7 Pool-Pool Spacing Ratio, Lps/Wbkf (ft/ft) 3.5-7.0 3.5-7.0 1.2-1.7 0.5-5.0 6.3.1 Stream Design Reach Summary Restoration S100-R1 & S100-R2: The historic channelization has disrupted the natural flow pattern of this reach. S100 most likely functioned prior to disturbance as a headwater stream system (Rosgen ‘DA’ stream type). The upper section of S100-R1 will be restored as a Rosgen ‘DA’ stream. The valley bottom will be graded to restore the natural microtopographic variability that is common within these system types. Brushy riffles and wood will be incorporated into the stream for habitat. Below the ‘DA’ system there will be a transition into a ‘C5’ stream type using appropriate riffle-pool morphology and grade control to accommodate vertical drops towards the remnant meander cutoff. A new floodplain bench will be constructed to dissipate stream flows exceeding the bankfull storm. In-stream structures such as brushy riffles, woody riffles, and toe wood will be utilized to control grade, dissipate flow energies, protect streambanks, and eliminate the potential for upstream channel incision. Once S100-R2 enters the Swift Creek floodplain, stream bank heights decrease and channel morphology improves. This section of stream will be preserved in place and will connect to the Swift Creek Mitigation Bank. Riparian buffers in excess of 200 feet will be restored and protected along the entire length of S100. Draft Mitigation Plan Swiftie Mitigation Bank Page 31 S200-R1: Similar to S100-R2, proposed work on S200-R1 will involve a headwater stream restoration approach. The reach will be restored as a Rosgen ‘DA’ stream type, and the valley bottom will be graded to restore the natural microtopographic variability that is common within these systems. The flow path will generally follow the valley bottom. The combination of headwater stream restoration, plugging adjacent ditches, and minor grading of spoil and fill will restore the hydrologic conditions. In-stream structures such as brushy riffles and toe wood will be incorporated to provide bedform diversity and habitat. Riparian buffers in excess of 200 feet will be restored and protected along the entire length of the reach. S200-R2: S200-R2 continues as a small headwater tributary that is mostly stable before connecting to a ditch network that can be clearly seen in the field and on the LiDAR mapping (Figure 5a/5b) and the existing hydrography map (Figure 8). Starting at S200-R2, the channel will be tied into a remnant channel feature and the existing ditch network will be filled in completely. Restoration activities will include limited in-stream structure installation to increase aquatic habitat, supplemental buffer planting to more than 200 feet, and permanently protecting the riparian stream and wetland area with a conservation easement. Any invasive species vegetation will be removed in these areas and native riparian species vegetation will be planted in any disturbed areas. S200-R3: S200-R3 will involve a headwater stream restoration approach. The reach will be restored as a Rosgen ‘DA’ stream type. The valley bottom will be graded to restore the natural microtopographic variability that is common within these systems. A shallow flow path will be constructed within the headwater valley bottom. In-stream structures such as brushy riffles will be incorporated to provide bedform diversity and habitat. Any exotic species vegetation will be removed in these areas and native riparian species vegetation will be planted in any disturbed areas. Riparian buffers in excess of 200 feet will be restored and protected along the entire length of the reach. S200-R4: S200-R4 connects to an existing ditch network that can be clearly seen in the field and on LiDAR mapping and the existing hydrography map (Figure 8). This reach will be designed with conservative riffle- pool morphology to tie into the existing non-jurisdictional ditch that will eventually become S300. Activities will include in-stream structure installation to increase aquatic habitat, supplemental buffer planting to more than 200 feet, and permanently protecting the riparian area and wetland area with a conservation easement. Enhancement Level II S300-R1: S300-R1 is a small headwater tributary that has been historically manipulated along its entire length. The channel is mostly stable throughout its length, although lacks a wide riparian buffer. The historic ditching activities have disrupted the natural headwater flow regime and fragmented the native buffer vegetation. Prior to disturbance, this area most likely functioned as a single thread channel with appropriate riffle-pool morphology (Rosgen ‘C5’ stream type). Starting at the upstream end of S300-R1, structures such as geolifts with brush toes and brushy riffles in combination with bank grading will be strategically placed along the reach to stabilize the banks and stream channel. Riparian buffers in excess of 200 feet will be protected along the entire length. Draft Mitigation Plan Swiftie Mitigation Bank Page 32 Preservation S300: The lower portion of S300 transitions into the Swift Creek floodplain and a meander cutoff. Although the channel is slightly incised and entrenched, it is mostly stable and has adequate bedform diversity and structure. Preservation work will only include localized bank stabilization near the transition with the upper reach. Any exotic species vegetation will be removed along the reach and riparian buffers in excess of 200 feet will be supplementally planted and protected along the entire length. S500 & S600: Preservation is being proposed along these reaches since the system is stable and downstream of a recently restored Swift Creek Mitigation Bank. The preservation area will be protected in perpetuity through a permanent conservation easement. This will extend the wildlife corridor while providing a hydrologic connection to Swift Creek and critical habitat linkage within the catchment area. Floodplain features such as depressions, sloughs, meander scars, vernal pools, and tree throws will be protected or incorporated to improve aquatic and terrestrial habitat. S700: S700 originates as a small jurisdictional stream that begins at a ditched meander cutoff area within a mostly undisturbed forested area. Based on field investigations, the stream and wetland complex is stable throughout its length until its confluence with White Oak Swamp. Preservation is being proposed along this reach since the existing headwater stream and wetland system is higher functioning due to minimal historic impacts. The preservation area will be protected in perpetuity through a permanent conservation easement. This approach will extend the wildlife corridor throughout the project boundary, while providing a hydrologic connection to the larger swamp system. 6.3.2 Wetland Design Summary Degraded and/or drained riparian and non-riparian wetlands were documented within the project boundary. These areas contain hydric soils indicators and total approximately 23.8 acres of hydric soils, 12.6 acres of degraded jurisdictional wetlands, and 107.3 acres of wetland preservation. The predominant native wetland vegetation communities are largely devoid or not considered reference quality in areas proposed for restoration. Areas proposed for wetland enhancement have areas of excessive invasive plants such as Chinese privet mixed in with native woody vegetation. On-site investigations of the soils within the project area were conducted in April 2022 by licensed soil scientist (LSS), George Lankford, LSS, with George K. Lankford, LLC (See Hydric Soils Investigation in Appendix BB2). The findings were based on approximately 162 hand-turned auger borings and indicate the presence of hydric soils along the riparian and non-riparian areas of much of the wetland restoration area. The hydric soils status is based upon the “Field Indicators of Hydric Soils in the United States” (USDA, NRCS, 2018, Version 8.2). The presence of hydric soil indicators and hydric inclusions within 12 inches of the soil surface was verified, and a hydric soil boundary was identified as containing potential jurisdictional hydrology. Hydric indicators typically occur within the upper 18 inches, but selected borings extended to greater than 40 inches in depth to evaluate potential deeper drainage or locate restrictive horizons able to perch the water table. Mr. Lankford noted that areas of existing hydric soils have been manipulated by a combination of agricultural uses such as ditching, surface smoothing, and gentle contouring increasing runoff. The natural unaltered condition would have supported lengthy periods of saturation in the wetland restoration areas. The project lies within an appropriate landscape for wetland restoration and the site evaluation identified a large area of continuous hydric soil. Available sources of hydrology are unnamed tributaries (S100 and Draft Mitigation Plan Swiftie Mitigation Bank Page 33 S200), and extensive areas of groundwater discharge along the toe of slope in non-riparian wetland areas. Soils in wetland restoration areas relative to existing wetlands on site exhibit browner coloration due to loss of organics due to manipulation and management by agricultural practices. It was found that project soils are within the observed range for Roanoke (Ro) or Rains (RaA) soils. Based on the 2016 NCIRT guidance and existing soil properties, WLS expects an appropriate wetland saturation and hydroperiod for the Roanoke mapped soil series or with similar taxonomy to be at least 12 percent of the growing season (USACE, 2016). The Roanoke soil series is found in W03 riparian and non- riparian wetlands. Due to the current drainage modifications, it may take up to a year for the site to become completely saturated and reach the target hydroperiods. For at least the first year after construction, it may be reasonable to expect a lower hydroperiod, depending on final construction timing and rainfall distribution (assuming average seasonal rainfall, antecedent conditions, and over bank flow frequency). Non-riparian Wetland Re-establishment W03: The proposed non-riparian wetland area (W03) will involve minor grading of the existing topography, filling existing ditches, removal of and creation of natural depressions to restore what would have most likely been the historic topography. The existing topsoil will be stockpiled and handled separately to avoid compaction and loss of organic soils. The non-riparian wetland re-establishment approach is supported by on-site soils investigations, surface flow and ditch flow observations, topography, soil mapping, historic aerial photos, and anecdotal observations by long-time landowners. The combination of plugging/filling ditches and minor grading will restore the hydrologic conditions that formed the in-situ hydric soils. The predominant wetland vegetation communities are absent in the project area. Planting native species vegetation in adjacent non-wetland areas will restore the appropriate non-riverine swamp forest habitat. Riparian Wetland Re-establishment W03: The site conditions are favorable for restoring wetland hydrology and re-establishment of jurisdictional status. The proposed riparian wetland area (W03) will involve minor grading of the existing topography, restoring S200 headwater flow path through W02 & W03, filling existing ditches, and creation of natural depressions to restore what would have most likely been the historic topography. The existing topsoil will be stockpiled and handled separately to avoid compaction and loss of organic soils. The riparian wetland re-establishment approach is supported by on-site soils investigations, surface flow and ditch flow observations, topography, soil mapping, historic aerial photos, and anecdotal observations by long-time landowners. The combination of plugging/filling ditches and minor grading will restore the hydrologic conditions that formed the in-situ hydric soils. The predominant wetland vegetation communities are mostly absent in the project area. Planting native species vegetation in adjacent non- wetland areas will restore the appropriate non-riverine swamp forest habitat. Non-riparian Wetland Enhancement W02: The site conditions are also favorable for enhancing existing non-riparian wetland vegetation and groundwater hydrology. Proposed wetland enhancement activities will involve filling existing ditches to improve hydrologic conditions and removing existing invasive vegetation. The combination of filling ditches and minor grading will restore the hydrologic conditions that formed the in-situ hydric soils. The Draft Mitigation Plan Swiftie Mitigation Bank Page 34 predominant wetland vegetation communities are mostly successional and partially disturbed. Supplemental planting of native species vegetation areas will also enhance the non-riverine swamp forest habitat. Riparian Wetland Enhancement W01: Wetland enhancement activities will occur in existing riparian wetland areas along the tributary corridors. These areas have been historically ditched, artificially drained, and lack mature wet tolerant vegetation. Planting native vegetation and removing invasive vegetation along with filling ditches and raising the local groundwater elevation will contribute to improved hydrologic conditions. It is anticipated that as a direct result of implementing headwater stream restoration, limited soil removal (less than 1 foot of depth), and revegetation, hydrology will be improved and allow the wetland areas to regain their historic functions. It is anticipated that as a direct result of implementing headwater stream restoration, limited soil removal (less than 1 foot of depth), and revegetation, hydrology will be improved and allow the wetland areas to regain their historic functions. Riparian Wetland Preservation W04, W05, W06: Conditions are favorable for preserving large areas of historic higher functioning riparian wetlands. Riparian wetland preservation will involve maintaining and protecting current hydrologic conditions across the historic Swift Creek and White Oak Swamp floodplains, backwater sloughs, and meander cutoffs. WLS concluded these areas experience seasonal wetness for prolonged periods, and conditions are favorable to support wetland hydrology. WLS concluded these areas experience seasonal wetness for prolonged periods, and conditions are favorable to support wetland hydrology. Areas where invasive plant species are present will be treated within the preservation section. Existing wetland areas will be avoided by keeping proposed restoration and construction activities away from the existing wetland boundaries. 6.4 Flow Regime Extensive research has demonstrated that a wide range of flows are essential to maintain stable and high functioning habitat across ecological systems. The flow regime has been identified as the primary factor in sustaining the ecological integrity of riparian systems (Poff et al. 1997) and is a key variable in determining the abundance, distribution, and evolution of aquatic and riparian species (Schlosser 1985, Resh et al. 1988, Power et al. 1995, Doyle et al. 2005). The ecological significance of variable stream flows is more relative to flow duration, not necessarily just the flow recurrence interval. Seasonal flow variations are impacted by natural and anthropogenic mechanisms (i.e. stressors) that correlate to biological relationships and habitat response. Although dynamic, flow conditions can generally be categorized as low flow, channel-forming flow, or flood flows, each with specific ecological significance (Postel and Richter, 2003). A majority of stream miles (>80 percent) in North Carolina are classified as headwater streams (drainage area <3.9 mi2); however, less than 10 percent of the 284 USGS stream gages in North Carolina are located on headwater streams (EFSAB, 2013). WLS recognizes the importance of these stream flow variables and the ecological role they play in supporting high functioning headwater stream and wetland systems. As such, flow monitoring will be conducted to demonstrate that the restored headwater stream systems exhibit seasonal base flow during years with normal rainfall conditions. As such, flow monitoring will be Draft Mitigation Plan Swiftie Mitigation Bank Page 35 conducted to demonstrate that the restored headwater stream systems exhibit seasonal base flow during years with normal rainfall conditions. The stream surface flow documentation methods are further described in Section 9. Table 12 summarizes the basic flow levels and ecological roles the restoration design will provide after Project implementation. Table 12. Flow Level and Ecological Role Low Flow (Base Flow): occurs most frequently/seasonally -Provide year-round habitat for aquatic organisms (drying/inundation pattern) -Maintain suitable conditions for water temperature and dissolved oxygen -Provide water source for riparian plants and animals -Enable movement through stream corridor and refuge from predators -Support hyporheic functions and aquatic organisms Channel-forming Flow: infrequent, flow duration of a few days per year -Shape and maintain physical stream channel form -Create and maintain pools, in-stream and refuge habitat -Redistribute and sort fine and coarse sediments -Reduce encroachment of vegetation in channel and establishment of exotic species -Maintain water quality by flushing pollutants -Maintain hyporheic connection by mobilizing bed and fine material -Create in-channel bars for seed colonization of native riparian plants Flood Flow: very infrequent, flow duration of a few days per decade or century -Deposition of fine sediment and nutrients on floodplain -Maintain diversity, function, and health of riparian floodplain vegetation -Create streamside habitat, new channels, sloughs, and off-channel rearing habitat through lateral channel migration and avulsion -Recharge floodplain and storage processes -Recruitment of native wood and organic material into channel 6.4.1 Bankfull Stage and Discharge Bankfull stage and its corresponding discharge are the primary variables used to develop a natural stable channel design. However, the correct identification of the bankfull stage in the field can be difficult and also subjective (Williams, 1978; Knighton, 1988; and Johnson and Heil, 1996). Numerous definitions exist of bankfull stage and methods for its identification in the field (Wolman and Leopold, 1957; Nixon, 1959; Schumm, 1960; Kilpatrick and Barnes, 1964; and Williams, 1978). The identification of bankfull stage in the humid Southeast can be especially challenging because of dense understory vegetation and extensive channel modification and subsequent adjustment in channel morphology. It is generally understood that bankfull stage corresponds with the discharge that fills a channel to the elevation of the active floodplain and represents a breakpoint between processes of channel formation and floodplain development. The bankfull discharge, which also corresponds with the dominant discharge or effective discharge, is the flow that moves the most sediment over time in stable alluvial channels. Field indicators include the back of point bars, significant breaks in slope, changes in vegetation, the highest scour line, or the top of the streambank (Leopold, 1994). Upon completion of the field survey and geomorphic assessment, accurate identification of bankfull stage could not be made in all reach sections throughout the reaches due to incised and channelized/ditched conditions. Although some field indicators were apparent in segments with lower streambank heights and discernible scour features, the reliability of the indicators was inconsistent due to the altered condition of Draft Mitigation Plan Swiftie Mitigation Bank Page 36 the stream channels. For this reason, the bankfull stage and discharge were estimated using published regional curve information. 6.4.2 Regional Curve Comparison Regional curves developed by Dunne and Leopold (1978) relate bankfull channel dimensions to drainage area and are based on the channel forming discharge theory, which states that one unique flow can yield the same channel morphology as the full range of flows. A primary purpose for developing regional curves is to aid in identifying bankfull stage and dimension in un-gauged watersheds, as well as to help predict the bankfull dimension and discharge for natural channel designs (Rosgen, 1994). Gauge station analyses throughout the United States have shown that the bankfull discharge has an average return interval of 1.5 years or 66.7% annual exceedance probability on the maximum annual series (Dunne and Leopold, 1978; Leopold, 1994). Hydraulic geometry relationships are empirically derived and can be developed for a specific river or extrapolated to a watershed in the same physiographic region with similar rainfall/runoff relationships (FISRWG, 1998). Published bankfull regional curves are available for a range of stream types and physiographic provinces. The NC Rural Coastal Plain Regional Curve (Sweet and Geratz, 2003) and NC State University Coastal Plain Regional Curve (Doll et al., 2002) were used for comparison when estimating bankfull discharge. The NC Coastal Plain Regional Curve and bankfull hydraulic geometry equations are shown in Table 13. It’s important to note these tributaries are classified as zero and first order streams, and generally smaller headwater streams can be poorly represented on the regional curves. Based on WLS’ experience, the published NC Rural Coastal Plain Regional Curve Equations can slightly overestimate discharge and channel dimensions for smaller ungauged streams. Furthermore, estimating bankfull parameters subjectively rather than using deterministic values may encourage designers to make decisions on a range of values and beliefs that the bankfull depths must inherently be within that range (Johnson and Heil, 1996). Table 13. North Carolina Coastal Plain Regional Curve Equations NC Coastal Plain Regional Curve Equations EcoScience (Sweet and Geratz, 2003) NC Coastal Plain Regional Curve Equations NCSU (Doll et al., 2002) Qbkf = 8.79 Aw 0.76 R2=0.92 Qbkf = 16.56 Aw 0.72 R2=0.90 Abkf = 9.43 Aw 0.74 R2=0.96 Abkf = 14.52 Aw 0.66 R2=0.88 Wbkf = 9.64 Aw 0.38 R2=0.95 Wbkf = 10.97 Aw 0.36 R2=0.87 Dbkf = 0.98 Aw 0.36 R2=0.92 Dbkf = 1.29 Aw 0.30 R2=0.74 6.4.3 Channel Forming Discharge A hydrologic analysis was completed to estimate and validate the design discharge and channel geometry required to provide more frequent overbank flows and floodplain inundation. WLS used multiple methods for evaluating the bankfull stage and dominant discharge for the Project reaches. Cross-sections were identified and surveyed to represent reach-wide conditions. Additional bankfull estimation methods, such as the commonly accepted Manning’s equation, were compared to help interpret and adjust field observations to select the appropriate design criteria and justification for the design approach. Draft Mitigation Plan Swiftie Mitigation Bank Page 37 The bankfull flows in gauged watersheds within the NC Rural Coastal Plain study documented return intervals (RI) that range from <1.0 to 1.3, with a mean of 1.2 years (Sweet and Geratz, 2003). WLS then compared lower flow frequencies in the 1.2-yr to 1.5-yr RI range versus survey data and discharge analysis (See Appendix C). It should be noted that this best fit approach does not always match the dataset, since it falls at the low end of the curve. Therefore, caution should be used when comparing these lower Ris with additional data sets. Using the rationale described above, the bankfull discharge analyses compared NC Rural Coastal Plain regional curves, Manning’s equation discharges calculated from the representative cross-section geometry, and USGS regional regression equations. Table 14. Design Discharge Analysis Summary Project Reach Designation Watershed Drainage Area (Ac) EcoScience NC CP Regional Curve (cfs) 1 NCSU NC CP Regional Curve (cfs) 2 Manning’s Equation (cfs) 3 USGS Regression Equation for 1.2-year Recurrence Interval (cfs) 4 Design Discharge Estimate (cfs) S100-R1 25 0.75 1.62 2.21 3.32 1.5 S100-R2 32 0.89 1.90 5.04 3.58 1.5 S200-R1 90 2.28 4.62 5.59 7.26 3.5 S200-R3/R4 128 2.58 5.2 9.79 7.43 4.0 Note 1: Published NC Coastal Plain Regional Curve (Sweet and Geratz, 2003). Note 2: Published NC Coastal Plain Regional Curve (NCSU, 2003). Note 3: Bankfull discharge estimates vary based on Manning’s Equation for the representative riffle cross- sections. Bankfull stage roughness estimates (n-values) ranged from approximately 0.02 to 0.05 based on channel slopes, depth, bed material size, and vegetation influence. Note 4: NC USGS rural regression equation extrapolated for 1.2-year flood recurrence interval (USGS, 2011) After considering these estimation methods and results (geometry measurements, published regional curves, flow frequency and USGS regional regression equations), WLS estimated the design discharge using values nearest to the published NC Coastal Plain Regional Curve (Sweet and Geratz, 2003). These were then used to select the appropriate design dimensions and flows rates that best correspond to the design channel that will convey the 1.2-yr RI. The design discharge analysis summary is provided in Appendix CBC. 6.4.4 Channel Stability and Sediment Transport Analysis To evaluate channel stability and sediment transport relationships, shear stress, stream power, and width- to-depth (W/D) values were plotted against comparable Coastal Plain sand-bed reference stream data (Appendix C). The design shear stress and stream power values plot within the scatter of data points collected from multiple stable reference reaches. This analysis provides a basic relationship that the shear stresses and stream power predicted for the design channels are within the range of stable values. Therefore, excessive scour of the design channel is not expected once the vegetation becomes established and W/D decreases. Draft Mitigation Plan Swiftie Mitigation Bank Page 38 Alluvial sand bed channels in small Coastal Plain headwater stream systems typically have a relatively low sediment supply with finer grained material (D50 < 2mm), therefore a more complex sediment budget or rating curve is not necessary. Under natural stable conditions, sediment deposits in these headwater stream systems are more aggradational, due to low flow velocities and scour stresses. As a design consideration, the proposed design riffle slopes greater than 0.001 ft/ft will be constructed in transitional areas using native wood material to provide additional grade control and bed stability. Any concerns regarding channel degradation and stability will be addressed by installing a combination of grade control structures, such as constructed log riffles and step-pools in the straighter channel segments (vertical stability) and brush toe and bioengineering in meander bends (vertical stability). In addition, improving the existing stream crossings and restoring a more natural flow regime will facilitate positive adjustments to sediment routing and storage across the reconnected floodplains. Table 15 represents the boundary shear stress and stream power values under proposed design conditions for Project reaches. Table 15. Boundary Shear Stress and Stream Power Project Reach Designation Watershed Drainage Area (Ac) Bankfull Q NC CP Regional Curve (cfs) 1 Bankfull Q Manning’s Equation (cfs) 2 Bankfull Velocity (ft/sec) Shear Stress (lbs/ft2 ) Stream Power (W/m2 ) S100-R1 25 0.75 2.2 1.8 0.055 1.609 S100-R2 32 0.89 2.9 2.3 0.285 10.941 S200-R1 90 2.28 3.2 1.5 0.102 2.491 S200-R3/R4 128 2.58 5.6 1.6 0.114 3.087 Note 1: Published NC Coastal Plain Regional Curve (Sweet and Geratz, 2003). Note 2: Manning’s Equation for the representative riffle cross-sections. Predicted roughness estimates (n-value = 0.020-0.035) were based on channel slopes, depth, bed material size, and vegetation influence. 6.5 Reference Sites 6.5.1 Reference Streams The morphologic data obtained from reference reach surveys can be a valuable tool for comparison and used as a template for analog design of a stable stream in a similar valley type, drainage area, valley slope and sand bed material. To obtain the morphological relationships observed in a stable stream system, dimensionless ratios were compared from the selected reference reaches. These ratios were applied to the stream design to ‘mimic’ the natural, stable form of the target channel type. While reference reach data can be a useful aid in analog design, they are not always necessary and can have limitations in smaller headwater stream systems (Hey, 2006). The flow patterns and channel formation for many reference reach quality streams are often controlled by slope, bed material, drainage areas and larger trees and/or other deep-rooted vegetation. Some meander geometry parameters, such as radius of curvature, are particularly affected by vegetation control. Pattern ratios observed in reference reaches may not be applicable or are often adjusted in the design criteria to create more conservative designs that are less likely to erode after construction before the permanent vegetation is established. Pattern ratios observed in reference reaches may not be applicable or are often adjusted in the design criteria to create more conservative designs that are less likely to erode after construction before the Draft Mitigation Plan Swiftie Mitigation Bank Page 39 permanent vegetation is established. Often the best reference data is from adjacent stable stream reaches or reaches within the same watershed. WLS selected reference sites and monitoring data from the Turtle Creek and Hornpipe Branch Tributaries mitigation projects and compared them with composite Coastal Plain (CP) reference data. The reference reach data represents small headwater CP streams and falls within the same climatic, hydrophysiographic, and ecological region as that for the Project site. The reference reach data shown on Table 16 helped to determine the design approach for the project reaches proposed for single thread channel restoration. Figure 12 shows the stream reference site locations. Additional CP headwater stream comparison data is provided in Appendix C. Table 16. Reference Reach Data Comparison Parameter Headwater Reference Data1 Headwater Reference Data2 Composite Reference Data3 Stream Type (Rosgen) C5 / B5c DA C5 / E5 Bankfull Mean Velocity, Vbkf (ft/s) 1.7 1.2 1.0 – 1.4 Width to Depth Ratio, W/D (ft/ft) 5.9 – 11.0 10.1 – 19.5 8.0 – 14.0 Entrenchment Ratio, Wfpa/Wbkf (ft/ft) 1.6 – 3.7 4.3 – 5.8 4.0 – 13.0 Riffle Max Depth Ratio, Dmax/Dbkf 1.4 – 1.8 1.5 1.2 – 1.7 Bank Height Ratio, Dtob/Dmax (ft/ft) 1.0 – 1.1 1.0 - 1.2 1.0 – 1.3 Meander Length Ratio, Lm/Wbkf 4.4 – 7.1 N/A 4.0 – 17.0 Radius of Curvature Ratio, Rc/Wbkf 1.3 – 3.1 N/A 1.5 – 3.0 Meander Width Ratio, Wblt/Wbkf 2.4 – 3.5 N/A 2.0 – 9.0 Sinuosity, K 1.2 N/A 1.2 - 1.7 Valley Slope, Sval (ft/ft) 0.0011 0.0083 0.002 – 0.010 Channel Slope, Schan (ft/ft) 0.0098 0.0080 0.002 – 0.010 Pool Max Depth Ratio, Dmaxpool/Dbkf 1.7 – 3.0 1.4 – 2.5 1.8 – 2.4 Pool Width Ratio, Wpool/Wbkf 1.1 – 1.5 0.9 – 1.3 0.8 – 1.4 Pool-Pool Spacing Ratio, Lps/Wbkf 2.5 – 6.0 4.7 – 7.9 3.5 – 7.0 Note 1: Headwater reference reach data was collected from the Turtle Creek mitigation project. Note 2: Headwater reference reach data was collected at an unnamed tributary for the Hornpipe Branch Tributaries mitigation project named ‘South Reference Reach’. Note 3: Composite reference reach data were compiled from the NC reference reach database, published by NCDOT, and reference reach surveys conducted by Michael Baker International as published in the Natural Channel Design Review Checklist (Harman Starr, 2011). 6.5.2 Reference Wetlands An existing wetland type that is representative of the riparian wetland system to be restored at the Project site was identified within the Hollowell Mitigation Project along upper UT2-R1 and UT2-R3 (see Figure 12 for wetland reference location). The reference riparian wetlands are an example of a Headwater Forest/Bottomland Hardwood Forest (NC WAM, 2016) and a “Coastal Plain small stream swamp,” as described by Schafale (2012). These headwater systems exist along the zero- or first-order streams and floodplains of small brownwater (or blackwater) streams in which separate or consistent fluvial features and associated vegetation are poorly developed to distinguished. Hydrology of these systems is palustrine – intermittently, temporarily, or seasonally flooded. Stream flows tend to be highly variable, with floods Draft Mitigation Plan Swiftie Mitigation Bank Page 40 of short duration, and periods of very low flow. Bottomland Hardwood Forests exist in geomorphic floodplains along second-order and larger streams. These wetlands are generally intermittently to seasonally inundated and overbank flooding is the source of groundwater and surface runoff. The reference site has experienced minimal disturbances in the past, primarily due to timber harvest; however, cutting of timber occurred long ago, and a mature canopy of vegetation exists across wetland area. Evidence also suggests that the hydrology and soils were minimally affected by historic timber harvest. The reference site has experienced minimal disturbances in the recent past due to being restored and protected by a conservation easement. Figure 12 shows the wetland reference site locations and the associated hydrology data is in Appendix B. 6.6 Revegetation Plan Riparian buffers will be established a minimum of 50 feet from the top of the streambanks along each of the Project reaches and, as well as permanently protecting those buffers with a conservation easement. Many of the proposed riparian buffer widths within the conservation easement are greater than 200 feet along one or both streambanks to provide additional functional uplift potential, such as encompassing adjacent wetland areas. Proposed plantings will be conducted using native tree species, in the form of live stakes and bare root seedlings. Bare root trees will be planted at a total target density of 680 stems per acre. Outside of the creditable areas, 302 stems per acres will be planted. The proposed plant selection will help to establish an appropriate native vegetation community based on reference conditions and water quality goals. Schafale’s (2012) Natural Communities of North Carolina, as well as existing mature species identified throughout the Project area, were referenced during the development of the riparian buffer planting plan for the Project site. The closest approximation of the riparian vegetation community is CP Small Swamp Stream in the headwater and wetland restoration areas of the project (Schafale, 2012). Species proposed for revegetation planting are presented in Tables 17 and 18. Riparian wetlands do not necessitate a separate community designation from headwater forest or non-riparian wetlands. WLS is proposing the use of bald cypress (Taxodium distichum), a softwood species, as it is currently found on site and is a species commonly found in Coastal Plan Small Swamp Streams. Draft Mitigation Plan Swiftie Mitigation Bank Page 41 Table 17. Proposed Riparian Buffer Bare Root Plantings Scientific Name Common Name Wetland Indicator Proposed Percentage of Mix Betula nigra River birch FACW 10% Nyssa sylvatica Black gum FAC 8% Platanus occidentalis American sycamore FACW 10% Ulmus americana American elm FAC 5% Liriodendron tulipifera Tulip poplar FACU 5% Quercus alba White oak FACU 5% Quercus michauxii Swamp Chestnut Oak FACW 8% Quercus phellos Willow oak FACW 8% Quercus nigra Water oak FAC 8% Taxodium distichum Bald cypress OBL 10% Quercus lyrata Overcup oak OBL 8% Cornus amomum Silky dogwood FACW 5% Asimina triloba Pawpaw FAC 5% Carpinus caroliniana Ironwood FAC 5% Note: Final species selection may change due to refinement or availability at the time of planting. A minimum of 10 species will be planted from the list with no single species to be above 15% of the total. 6.6.1 Planting Materials and Methods Planting will be conducted during the dormant season, with all trees installed between Mid-November and March 15th. The final planting zone limits may be modified based on these observations and comparisons, and the final selection of the location of the planted species will be matched according to the species wetness tolerance and the anticipated wetness of the planting area. Live Staking and Live Branch Cuttings: Where black willow (Salix nigra) live staking is proposed on streambanks, live stakes will typically be installed at a minimum of 40 stakes per 1,000 square feet. The live stakes will be spaced approximately three feet apart in meander bends and six feet apart in the riffle sections, using a triangular spacing pattern along the streambank, between the toe of the streambank and bankfull elevation. When bioengineering is proposed, live branch cutting bundles will be installed at five linear feet per bundle approximately two to three branches thick. Permanent Seeding: Temporary and permanent seeding will be conducted simultaneously at all disturbed areas of the Project site during construction and will be conducted with mechanical broadcast spreaders. Table 18 lists the proposed species, mixtures, and application rates for permanent seeding. The vegetation species proposed for temporary seeding germinate quickly to swiftly establish vegetative ground cover and thus, short term stability. This mix will be appropriate for streambank, floodplain, and adjacent riparian wetland areas and the upland transitional areas in the riparian buffer. This mix will be appropriate for streambank, floodplain, and adjacent riparian wetland areas and the upland transitional areas in the riparian buffer. Beyond the riparian buffer areas, temporary and permanent seeding will also be conducted at all other disturbed areas of the Project site that are susceptible to erosion. If temporary seeding is applied from November through April, rye grain will be used and applied at a rate of 130 pounds Draft Mitigation Plan Swiftie Mitigation Bank Page 42 per acre. If applied from May through October, temporary seeding will consist of browntop millet, applied at a rate of 40 pounds per acre. Table 18. Proposed Riparian Buffer Permanent Seeding Scientific Name Common Name Wetland Indicator % Proposed for Planting by Species Seeding Rate (lb/acre) Scirpus cyperinus Woolgrass OBL 10% 1.5 Dichanthelium clandestinum Deer tongue FACW 10% 1.5 Elymus virginicus Virginia wildrye FAC 10% 1.5 Panicum virgatum Switchgrass FAC 15% 2.5 Schizachyrium scoparium Little blue stem FACU 15% 2.5 Rudbeckia hirta Black-eyed susan FACU 8% 1.5 Echinacea purpurea Coneflower NI 8% 1.5 Juncus effusus Soft rush OBL 6% 1.0 Penstemon digitalis Tall beardtongue FAC 10% 1.5 Vernonia noveboracensis New York ironweed FACW 8% 1.5 Note: Final species selection may change due to refinement or availability at the time of planting. Species substitutions will be coordinated between WLS and planting contractor prior to the procurement of seeding stock. Invasive Species: There is a significant presence of Chinese privet (Ligustrum sinense) in the forested areas of W01, W02 and W03. During the Bank implementation, invasive species vegetation will be treated both to control its presence and reduce its spread within the conservation easement areas. 6.7 Site Construction Methods 6.7.1 Site Grading and Construction Elements Much of the grading and excavation across the Bank site will be conducted within the existing riparian corridor and conservation easement boundary. Grading in the proposed wetland credit areas will be less than 12 inches. The restored streams will be graded within the natural valleys. Suitable fill/plug material will be generated from new channel and floodplain excavation, as well as from adjacent upland areas and hauled to stockpile locations as shown on the design plans. Portions of the existing degraded channels and ditches will be partially to completely filled along their length using compactable material excavated from construction of the restored channels to the proposed grades shown on the design plans. The existing topsoil layer will be stripped in a manner to prevent intermingling with underlying subsoil or other waste materials. The topsoil materials shall be stockpiled separately and shall be spread evenly to a depth of at least eight (8) inches on top of subsoil material to achieve final grades. The backfill material will be clean and free of debris, and compacted in horizontal lifts not exceeding 10 inches with heavy equipment, and shall be placed to a compaction standard to that of the surrounding/abutting undisturbed project soils. The sections of old stream channel and/or ditches to be abandoned will be filled with on-site soil materials. Soil fill materials shall be placed in the abandoned stream channel and compacted with heavy construction equipment. Areas of abandoned stream channel and/or ditches to be filled will have additional soil fill material mounded over the top of the fill to a depth of approximately 12 inches to offset Draft Mitigation Plan Swiftie Mitigation Bank Page 43 future settling. Channel block and/or ditch plug areas shall be constructed according to the design plans and technical specifications. Soil fill material used for channel plugs will have a higher clay content, befree of debris, rocks, trash, etc., and consist of compactable soil materials. Soil fill material will be placed in the channel plug areas and compacted in lifts of no more than 10 inches. The completed channel plugs shall be free of voids and be impermeable to water flow through, around, or under the completed plug. The proposed grades will be extended and connected to the surrounding undisturbed grades so that upon compaction and subsequent settlement, the resulting grades will be at the proper elevations specified on the construction plans. Compacted soil near plantings shall be loosened to a depth of at least eight (8) inches prior to planting activities. Floodplain grading activities will focus on restoring pre-disturbance valley topography by removing field crowns, overburden/spoil, and surface drains that were imposed during conversion of the land for agriculture. In general, floodplain grading activities will be minor, with the primary goal of soil scarification, creating depressional areas, water quality and habitat features, and microtopographic crenulations by filling the drainage features at the site back to adjacent ground elevations (Scherrer, 1999). Any excess material not used for ditch plugging or suitable as a soil base for vegetation will be spread across upland areas outside of the easement boundary and jurisdictional WOTUS. WLS will follow the stringent erosion control measures during construction listed on page two of the Fish and Wildlife comment letter found in the initial evaluation letter in Appendix G. 6.7.2 Stream, Wetland, and Floodplain Improvement Features Stream improvement features such as in-stream structures and bioengineering techniques are proposed for grade control, streambank protection, and improvement of bedform diversity and habitat. All in- stream structures will be constructed from materials naturally found in the region such as hardwood trees, trunks/logs, brush/branches, and gravel stone materials. Whenever possible, existing substrate material in the abandoned stream channels will be harvested and utilized for the new channel locations. WLS will also incorporate bioengineering practices, when appropriate, that use biodegradable materials and fabrics, uncompacted soils, live plant cuttings, and native species vegetation to stabilize streambanks. Bioengineering treatments will provide initial bank stability that allows for the quick establishment of deep-rooted vegetation along the newly restored streambanks. Additionally, floodplain improvement features such as coarse woody debris (CWD) will be installed. This will mimic features like tree throws, snags, stumps, etc. that are commonly found in natural riparian systems. These floodplain improvement features will be added to provide habitat and serve as water storage and sediment sinks throughout the corridor to improve riparian functions (Dooley, 2003). 6.7.3 Construction Feasibility WLS has field verified that the Bank site has adequate, viable construction access, staging, and stockpile areas. Physical constraints or barriers, such as stream crossings, account for only a small percentage of the proposed total stream reach length within the Bank boundary. Existing Bank site access points and features will be used for future access after the completion of construction. Draft Mitigation Plan Swiftie Mitigation Bank Page 44 6.7.4 Future Project Risks and Uncertainties Listed below are identified project risks and uncertainties that have been evaluated in the development of design plans for the site, along with methods that have been/will be used to address these concerns. Land Use Development: There is minimal risk that changes in land use upstream in the project watershed would alter the hydrology or sediment supply enough to impair the project streams after construction. The project area has seen little to no development in recent years, and it is unlikely development will threaten the site. o Methods to Address: Restoration and reforestation of the site streams will reduce the likelihood of future degradation from watershed changes, as erosive flood flows will spread over a wider reconnected floodplain. Easement Encroachment: There is potential for landowner encroachment into the permanent conservation easement. o Methods to Address: WLS has had considerable discussions with the landowner regarding the project requirements and limitations of easement access and is confident that the landowners fully understand and will maintain the easement protections. The easement boundaries will be clearly marked per requirements. Any encroachments that do occur will be remedied by WLS or the long-term steward to remedy any damage and provide any other corrections required by the IRT. Drought and Floods: There is potential for extreme climatic conditions during the monitoring period of the project. o Methods to Address: WLS will apply adaptive management techniques as necessary to meet the site performance criteria. Such adaptive management may include replanting, channel damage repair, irrigation, or other methods. If adaptive management activities are significant, additional monitoring may be required by the IRT. Beavers: There is potential for beavers to affect project success during the monitoring period. o Methods to Address: WLS will take steps to trap and remove beavers if they threaten Bank success during the monitoring period. 7 Maintenance Plan The Bank will be monitored on a regular basis and a physical inspection of the Bank will take place at least twice a year throughout the post-construction monitoring period until performance standards are met. These inspections may identify Bank components and features that require routine maintenance. Routine maintenance is anticipated in the years following Bank construction and may include the following components as described in Table 19. Draft Mitigation Plan Swiftie Mitigation Bank Page 45 Table 19. Routine Maintenance Components Feature Maintenance Activity Through Close-out Stream Routine channel maintenance and repair activities may include modifying in-stream structures to prevent piping, securing loose coir matting, and supplemental installation of live stakes and other target vegetation along the Project reaches. Areas of concentrated stormwater and floodplain flows that intercept the channel may also require maintenance. Wetland Routine wetland maintenance and repair activities may include securing loose coir matting and supplemental installations of target vegetation within the wetland. Areas of concentrated storm flows that intercept the wetland may also require maintenance to prevent excess scour. Vegetation Vegetation will be maintained to ensure the health and vigor of the targeted plant community. Routine vegetation maintenance and repair activities may include supplemental planting, pruning, and fertilizing. Exotic invasive plant species will be treated by mechanical and/or chemical methods. Any invasive plant species control requiring herbicide application will be performed in accordance with North Carolina Department of Agriculture (NCDA) rules and regulations. Project Site Boundary Project boundaries will be demarcated in the field to ensure clear distinction between the project site and adjacent properties. Boundaries may be identified by fence, marker, bollard, post, or other means as allowed by Project conditions and/or conservation easement. Boundary markers disturbed, damaged, or destroyed will be repaired and/or replaced on an as needed basis. Beaver Management Routine maintenance and repair activities caused by beaver activity may include supplemental planting, pruning, and dewatering/dam removal. Beaver management will be implemented using accepted trapping and removal methods only within the recorded Conservation Easement. Stream Crossing The stream crossing(s) within the Project may be maintained only as allowed by the recorded Conservation Easement, deed restrictions, right of ways, or corridor agreements. The stream crossing(s) within the Project may be maintained only as allowed by the recorded Conservation Easement, deed restrictions, right of ways, or corridor agreements. Stream crossings will be excluded from the easement area and maintained by the landowner. 8 Performance Standards The success criteria for the Bank will follow the approved performance standards and monitoring protocols presented in this mitigation plan which have been developed in compliance with the USACE October 2016 Guidance, USACE Stream Mitigation Guidelines (April 2003 and October 2005), and 2008 Compensatory Mitigation Final Rule. Monitoring activities will be conducted for a period of seven years with the final duration dependent upon performance trends toward achieving the bank goals and objectives. Specific success criteria components and evaluation methods are described below. 8.1 Streams Stream Hydrology: 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. Draft Mitigation Plan Swiftie Mitigation Bank Page 46 Stream Profiles, Vertical Stability, and Floodplain Access: Stream profiles, as a measure of vertical stability and floodplain access will be evaluated by measuring Bank Height Ratios (BHR) and Entrenchment Ratios (ER). In addition, bedforms and pool to pool spacing should be consistent for channels of the design stream type(s). The BHRs shall be ≤1.2 and the ERs ≥2.2 along the restored Project stream reaches. This standard only applies to restored reaches of the channel where BHRs and ERs are corrected through design and construction. Stream Horizontal Stability: Cross-sections will be used to evaluate horizontal stream stability. There should be minimal changes in cross-section geometry during the monitoring period. If measurable changes do occur, they should be evaluated to determine if the changes represent a movement toward a more unstable condition (e.g., downcutting, erosion) or a movement towards increased stability (e.g., settling, vegetation establishment, deposition along the streambanks, 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. Streambed Material Condition and Stability: After construction, there should be minimal change in the particle size distribution of the streambed materials over time, given the current watershed conditions and anticipated upstream sediment supply. Since the stream substrate and supply is predominantly fine particles (sand), significant changes in particle size distribution and excess channel aggradation are not expected. Jurisdictional Stream Flow: The restored stream systems must be classified as at least intermittent, and intermittent streams must exhibit 30 days of continuous flow for some portion of the year during a year with normal rainfall conditions. Jurisdictional stream flow will be monitored annually. Post restoration gauges will be installed on S100 and S200. Photo Documentation: Photographs should illustrate the Bank’s vegetation and morphological stability on an annual basis. Permanent photo stations will be set up at all cross-sections, above and below the utility crossing, and at the culvert. Cross-section photos should demonstrate no excessive erosion or degradation of the banks. Longitudinal photos should indicate the absence of persistent mid-channel bars or vertical incision. Grade control structures should remain stable. 8.2 Headwater Streams S100 and the S200 will be designed as a coastal headwater stream and the performance standards are as follows: Continuous Flow: Surface flow must be documented using gauges or automated photo loggers for 30 consecutive days. Channel Formation: Headwater stream channel formation within the valley or crenulation must be documented through identification of field indicators consistent with those listed in Section 9. All multi- thread and single-thread channels should maintain jurisdictional features as listed in Section 9. 8.3 Wetlands Wetland Hydrology: The performance standard for wetland hydrology will be at least 12 percent throughout hydric soil areas proposed for wetland re-establishment (W03). These hydroperiods are based Draft Mitigation Plan Swiftie Mitigation Bank Page 47 on the suggested wetland saturation thresholds for soils taxonomic subgroups provided by the licensed soil scientist (LSS) and IRT. The proposed success criteria for wetland hydrology will be when the soils are saturated within 12 inches of the soil surface for at least 12 percent (30 days) of the growing season on the WETS data table for Edgecombe County, NC. The saturated conditions should occur during a period when antecedent precipitation has been normal or drier than normal for a minimum frequency of 5 years in 10 (USACE, 2005 and 2010b). Precipitation data will be obtained from the Tarboro-Edgecombe Airport Station (Cardinal Station Scout: KETC), which is approximately 5.3 miles south of the Project and a rain gauge will be installed on site. If a normal year of precipitation does not occur during the first seven years of monitoring, WLS will continue to monitor the Project hydrology until the Project has been saturated for the appropriate hydroperiod. If rainfall amounts for any given year during the monitoring period are abnormally low, reference wetland hydrology data will be compared to determine if there is a correlation with the weather conditions and site variability. WLS has installed five wetland gauges prior to restoration to document baseline hydrology. Two gauges are in verified wetlands, W01 and W02. Three gauges are located in the hydric soil areas (see Appendix B). For the first year after construction, it may be realistic to expect a shorter hydroperiod. The deeper soil horizons will likely need time to become fully saturated and establish a high groundwater table across the floodplain. For at least the first year after construction, it may be reasonable to expect a hydroperiod range between 9 and 12 percent. 8.4 Vegetation Vegetative restoration success for the lower Project during the intermediate monitoring years will be based on the survival of at least 320, three-year-old planted stems per acre at the end of Year 3 of the monitoring period; and at least 260, five-year-old, planted stems per acre that must average seven feet in height at the end of Year 5 of the monitoring period. The final vegetative restoration success criteria will be achieving a density of no less than 210, seven-year-old planted stems per acre that must average 10 feet in height in Year 7 of monitoring. 8.5 Invasive Species WLS will treat invasive species vegetation within the project area and provide remedial action on a case by-case basis. Common invasive species vegetation, such as Chinese privet (Ligustrum sinense) and multiflora rose (Rosa multiflora) will be removed to allow native plants to become established within the conservation easement. Invasive species vegetation will be treated by approved mechanical and/or chemical methods. Any control methods requiring herbicide application will be performed in accordance with NC Department of Agriculture (NCDA) rules and regulations. If necessary, these removal treatments (i.e., cutting and/or spraying) will continue until the corrective actions demonstrate that the site is trending towards or meeting the standard monitoring requirement. 9 Monitoring Plan In accordance with the approved mitigation plan, the baseline monitoring document and as-built report documenting the mitigation activities will be developed within 60 days of the completion of planting and Draft Mitigation Plan Swiftie Mitigation Bank Page 48 monitoring device installation at the restored Bank. In addition, a period of at least six months will separate the as-built baseline measurements and the first-year monitoring measurements. The baseline monitoring document and as-built monitoring report will include all information required by the USACE Stream Mitigation Guidelines, issued in April 2003 and USACE Guidance for Compensatory Stream and Wetland Mitigation Conducted for Wilmington District dated October 2016. WLS will conduct mitigation performance monitoring based on these methods and will submit annual monitoring reports to IRT by December 31st of each monitoring year during which required monitoring is conducted. Bank success criteria must be met by the final monitoring year prior to project closeout, or monitoring will continue until unmet criteria are successfully met. The following subsections summarize the monitoring methods and linkage between the goals, parameters, and expected functional lift outcomes. Figure 10 illustrates the post-construction monitoring feature types and location. 9.1 Stream Monitoring Hydrologic monitoring will be conducted for all Bank stream reaches. Hydrologic monitoring will be conducted for all Bank stream reaches. For reaches that involve a combination of Restoration (Rosgen Priority Level I and II) approaches, geomorphic monitoring methods will be employed to evaluate the effectiveness of the restoration practices. Visual monitoring will be conducted along these reaches as described herein. For reaches involving an Enhancement Level I approach, monitoring efforts will focus primarily on geomorphic monitoring, visual inspections, photo documentation, and vegetation assessments, each as described herein. The monitoring of these Bank reaches will utilize the methods described under visual monitoring. 9.1.1 Hydrologic Monitoring The occurrence of four required bankfull events within the monitoring period, along with floodplain access by flood flows, will be documented using pressure transducers and/or photography. The pressure transducers will be installed in pools and correlating sensor depth to top of bank elevation. Recorded water depth above the top of bank elevation will document a bankfull event. In addition to the pressure transducers, traditional cork gauges will be installed at bankfull elevation and will be used to document bankfull events with photographs. Corresponding photographs will be used to document the occurrence of debris lines and sediment deposition on the floodplain during monitoring site visits. This hydrologic monitoring will help establish that the restoration objectives of restoring floodplain functions and promoting more natural flood processes are being met. 9.1.2 Geomorphic Monitoring Pattern: A planimetric survey will be conducted for the entire length of restored channel immediately after construction to document as-built baseline conditions (Monitoring Year 0). The survey will be tied to a permanent benchmark and measurements will include thalweg, bankfull, and top of banks. The plan view measurements such as sinuosity, radius of curvature, and meander width ratio will be taken on newly constructed meanders during baseline documentation (Monitoring Year 0) only. These measurements will demonstrate that the restored stream channel pattern provides more stable planform and associated features than the old channel, which further provide improved aquatic habitat and geomorphic function, as per the restoration objectives. Draft Mitigation Plan Swiftie Mitigation Bank Page 49 Dimension: Permanent cross-sections will be installed and surveyed at an approximate rate of one cross- section per 20 bankfull widths or an average distance interval (not to exceed 500 LF) of restored stream. Approximately 50 percent of cross-sections will be located at riffles and 50 percent at pools. Each cross- section will be monumented on both streambanks to establish the exact transect used and to facilitate repetition each year and easy comparison of year-to-year data. The cross-section surveys will occur in years 0 (as-built), 1, 2, 3, 5, and 7 and will include measurements of bankfull cross-sectional area (Abkf) at low bank height, Bank Height Ratio (BHR) and Entrenchment Ratio (ER). The monitoring survey will include points measured at all breaks in slope, including top of streambanks, bankfull, inner berm, edge of water, and thalweg, if the features are present. There should be minimal change in as-built cross-sections. Stable cross-sections will establish that the restoration goal of creating geomorphically stable stream conditions has been met. If changes do take place, they will be documented in the survey data and evaluated to determine if they represent a movement toward a more unstable condition (e.g., down-cutting or erosion) or a movement toward increased stability (e.g., settling, vegetative changes, deposition along the streambanks, or decrease in width-to-depth ratio). Using the Rosgen Stream Classification System, all monitored cross-sections should fall within the quantitative parameters defined for channels of the design stream type. Given the smaller channel sizes and meander geometry of the proposed streams, bank pin arrays will not be installed unless monitoring results indicate active lateral erosion at cross-sections occurring in meander bends, an increase of greater than 15 percent in cross-sectional area, or when visual monitoring indicates potential bank instability. Given the smaller channel sizes and meander geometry of the proposed streams, bank pin arrays will not be installed unless monitoring results indicate active lateral erosion at cross-sections occurring in meander bends, an increase of greater than 15 percent in cross-sectional area, or when visual monitoring indicates potential bank instability. Reference photo transects will be taken at each permanent cross-section. Lateral photos should not indicate excessive erosion or continuing degradation of the streambanks. Photographs will be taken of both streambanks at each cross-section. A survey tape stretched between the permanent cross-section monuments/pins will be centered in each of the streambank photographs. The water elevation will be shown in the lower edge of the frame, and as much of the streambank as possible will be included in each photo. Photographers should attempt to consistently maintain the same area in each photo over time. Profile: A longitudinal profile will be surveyed for the entire length of restored channel immediately after construction (Monitoring Year 0) to document as-built baseline conditions. The survey will be tied to a permanent benchmark and measurements will include thalweg, water surface, bankfull, and top of low bank. Each of these measurements will be taken at the head of each feature (e.g., riffle, pool) and at the maximum pool depth. The longitudinal profile should show that the bedform features installed are consistent with the intended design stream type. The longitudinal profiles will not be taken during subsequent monitoring years unless vertical channel instability has been documented or remedial actions/repairs are deemed necessary. Bank height ratios will be measured along the restored reaches using the results of the longitudinal profile. 9.1.3 Flow Duration Monitoring Jurisdictional Stream Flow Documentation: Monitoring of stream flow will be conducted to demonstrate that the restored stream systems classified as intermittent exhibit surface flow for a minimum of 30 Draft Mitigation Plan Swiftie Mitigation Bank Page 50 consecutive days throughout some portion of the year during years with normal rainfall conditions. To determine if rainfall amounts are normal for the given year, precipitation amounts using tallied data obtained from the Tarboro-Edgecombe Airport Station (Cardinal Station Scout: KETC), which is approximately 5.3 miles south of the Project, will be used, and a rain gauge will be installed on site. If a normal year of precipitation does not occur during the first seven years of monitoring, monitoring of flow conditions at the Bank site will continue until it documents that the intermittent streams have been flowing during the appropriate times of the year. The proposed monitoring of restored intermittent reaches will include the installation of flow devices (continuous-read pressure transducers) installed in pools and correlating sensor depth to the downstream top of riffle elevation. If the pool water depth is at or above the top of riffle elevation, then the channel will be assumed to have surface flow. The devices will be installed in the upper one-third portion of the reach. In addition, photographic documentation using a continuous series of remote photos over time may be used to subjectively evaluate and document channel flow conditions throughout the year. More specifically, the longitudinal photos should indicate the presence of flow within the channel to illustrate water levels within the pools and riffles. The photographs will be taken from a height of approximately five feet to ensure that the same locations (and view directions) at the Bank site are documented in each monitoring period and will be shown on a plan view map. The devices will be inspected on a quarterly basis to document surface hydrology and provide a basis for evaluating flow response to rainfall events and surface runoff throughout the monitoring period. 9.1.4 Headwater Stream Monitoring Continuous Surface Flow: Continuous surface water flow within the valley or crenulation must be documented to occur every year for at least 30 consecutive days during the prescribed monitoring period. Channel Formation: During monitoring years 1 through 4, the preponderance of evidence must demonstrate a concentration of flow indicative of channel formation within the topographic low point of the valley or crenulation as documented by the following indicators: • Scour (indicating sediment transport by flowing water) • Sediment deposition (accumulations of sediment and/or formation ripples) • Sediment sorting (sediment sorting indicated by grain-size distribution within primary flow path) • Multiple observed flow events (must be documented by gauge data and/or photographs) • Destruction of terrestrial vegetation • Presence of litter and debris • Wracking (deposits of drift material indicating surface water flow) • Vegetation matted down, bent, or absent (herbaceous or otherwise) • Leaf litter disturbed or washed away During monitoring years 5 through 7, the stream must successfully meet the requirements above, and the preponderance of evidence must demonstrate the development of stream bed and banks as documented by the following indicators: • Bed and banks (may include the formation of stream bed and banks, development of channel pattern such as meander bends and/or braiding at natural topographic breaks, woody debris, or plant root systems) Draft Mitigation Plan Swiftie Mitigation Bank Page 51 • Natural line impressed on the bank (visible high-water mark) • Shelving (shelving of sediment depositions indicating transport) • Water staining (staining of rooted vegetation) • Change in plant community (transition to species adapted for flow or inundation for a long duration, including hydrophytes) • Changes in character of soil (texture and/or chroma changes when compared to the soils abutting the primary path of flow). 9.2 Wetland Monitoring Hydrology: Approximately 12 automated groundwater monitoring wells will be installed to document hydrologic conditions of the restored wetland areas to determine hydrologic success criteria are achieved. Groundwater monitoring wells will be installed to record daily groundwater levels in accordance with the USACE standard methods described in “Technical Standard for Water Table Monitoring of Potential Wetland Sites” (ERDC TN-WRAP-05-2, June 2005). The objective for the monitoring well data is to demonstrate that the Banks exhibit an increased flood frequency as compared to pre-restoration conditions and on-site reference conditions. The wells will be downloaded on a quarterly basis. 9.3 Vegetation Monitoring Vegetation monitoring quadrants or plots will be installed and monitored across the Bank in accordance with the CVS-EEP Level I & II Monitoring Protocol (CVS, 2008). The total planting area for the conservation easement is 109.1 acres. Of the 109.1 acres 79.6 acres are within 200 feet of the stream in the credible areas and 29.5 acres are outside the credible areas but within the conservation easement. Within the creditable area (79.6 acres) the vegetation monitoring plots shall comprise approximately two percent of the planting area. There will be 44 plots established randomly within the planted riparian buffer areas. The sampling may employ annually located quasi-random plot locations, which may vary upon approval from IRT. Any random plots should comprise no more than 30 percent of the total required plots, and the location (GPS coordinates and orientation) will be identified in the monitoring reports. The size and location of fixed plots will be 100 square meters (i.e. 10m X 10m or 5m X 20M) for planted stems and may be adjusted based on site conditions after construction activities have been completed. No monitoring quadrants will be established within undisturbed wooded preservation or enhancement areas, however visual observations will be documented in the annual monitoring reports to describe any changes to the existing vegetation community. Vegetation monitoring will occur in the fall each required monitoring year, prior to the loss of leaves. Mortality will be determined from the difference between the previous year's living, planted seedlings and the current year's living, planted seedlings. Data will be collected at each individual quadrant and will include specific data for monitored stems on height, species, date planted, and grid location, as well as a collective determination of the survival density within that quadrant. Volunteer species will be noted, and if they are on the approved planting list and meet success criteria standards, they will be counted towards success criteria. Other species not included on the list may be considered by the IRT on a case-by-case basis. The presence of invasive species vegetation within the monitoring quadrants will also be noted, as will any wildlife effects. At the end of the first full growing season (from baseline/year 0) or after 180 days, Draft Mitigation Plan Swiftie Mitigation Bank Page 52 species composition, stem density, and survival will be evaluated. For each subsequent year, vegetation plots shall be monitored for seven years in years 1, 2, 3, 5 and 7, and visual monitoring in years 4 and 6, or until the final success criteria are achieved. 9.4 Visual Assessment Monitoring WLS will conduct visual assessments in support of mitigation performance monitoring. Visual assessments of all stream reaches will be conducted at least twice per monitoring year with a minimum of five months in between each site visit throughout the monitoring period. Photographs will be used to visually document system performance and any areas of concern related to streambank and bed stability, condition of in- stream structures, channel migration, active headcuts, live stake mortality, impacts from invasive plant species or animal browsing, easement boundary encroachments, cattle exclusion fence damage, and the general condition of pools and riffles. The monitoring activities will document and quantify the visual assessment throughout the monitoring period. A series of photographs over time will be compared to subjectively evaluate channel aggradation (bar formations) or degradation, streambank erosion, successful maturation of riparian vegetation, and effectiveness of sedimentation and erosion control measures. More specifically, the longitudinal profile photos should indicate the absence of developing bars within the channel or excessive increase in channel depth, while lateral photos should not indicate excessive erosion or continuing degradation of the banks. The photographs will be taken from a height of approximately five feet to ensure that the same locations (and view directions) at the Bank site are documented in each monitoring period and will be shown on a plan view map. The results of the visual monitoring assessments will be used to support the development of the annual monitoring document that provides the visual assessment metrics. Draft Mitigation Plan Swiftie Mitigation Bank Page 53 Table 20. Proposed Monitoring Plan Summary Functional Category (Level) Project Goal / Parameter Measurement Method Performance Standard Potential Functional Uplift Hydrology (Level 1) Improve Base Flow Duration and Overbank Flows (i.e. channel forming discharge) Pressure transducer, regional curve, regression equations, catchment assessment Maintain seasonal flow on intermittent streams for a minimum of 30 consecutive days during normal annual rainfall. Create a more natural and higher functioning headwater flow regime and provide aquatic passage. Hydraulics (Level 2) Reconnect Floodplain / Increase Flood prone Area Widths Bank Height Ratio, Entrenchment Ratio, Crest gauge Maintain average BHRs ≤1.2 and ERs ≥2.2 and document out of bank and/or significant flow events using pressure transducers or photographs & crest gauges. Provide temporary water storage and reduce erosive forces (shear stress) in channel during larger flow events. Geomorphology (Level 3) Improve Bedform Diversity Pool to pool spacing, riffle-pool sequence, pool max depth ratio, longitudinal profile Increase riffle/pool percentage and pool-to-pool spacing ratios compared to reference reach conditions. Provide a more natural stream morphology, energy dissipation and aquatic habitat/refugia. Increase Vertical and Lateral Stability Cross-sections and longitudinal profile surveys, visual assessment Decrease streambank erosion rates comparable to reference condition cross- section, pattern, and vertical profile values. Reduce sedimentation, excessive aggradation, and embeddedness to allow for interstitial flow habitat. Establish Riparian Buffer Vegetation CVS Level I & II Protocol Tree Veg Plots (Strata Composition Vigor and Density), visual assessment Within planted portions of the Project site, a minimum of 320 stems per acre must be present at year three; a minimum of 260 stems per acre must be present at year five; and a minimum of 210 stems per acre must be present at year seven. Increase woody and herbaceous vegetation will provide channel stability and reduce streambank erosion, runoff rates and exotic species vegetation. Note: Level 4 and 5 project parameters and monitoring activities are not proposed and are not required to demonstrate success for credit release. 10 Long-Term Management Plan The Bank will be protected in perpetuity by a recorded conservation easement. The conservation easement will allow for annual monitoring and maintenance of the Bank during the monitoring phase. Upon final site approval and project closeout, the Bank stewardship will be transferred to an approved long-term stewardship program. WLS has partnered with Tar River Land Conservancy (TRLC) as the long- term steward for the Bank site (See Appendix D for conservation easement template and engagement letter). Following the development of the mitigation bank and completion of all restoration and enhancement stream and wetland activities, the property fee title will be transferred to TRLC. Tar River Land Conservancy Attn: Derek Halberg 121 N. Main Street P.O. Box 1161 Louisburg, NC 27549 Draft Mitigation Plan Swiftie Mitigation Bank Page 54 This party shall serve as conservation easement holder and long-term steward for the property and will conduct periodic inspection of the Bank to ensure that restrictions required in the conservation easement are upheld. Any endowment funds for the conservation easement and deed restrictions shall be negotiated prior to transfer to the responsible party. Funding will be supplied by the responsible party on a yearly basis until such time and endowments are established. The use of funds from the Endowment Account is governed by NC General Statue GS 113A-232(d) (3). Payments and interest gained by the endowment fund may be used only for stewardship, monitoring, stewardship administration, and land transaction costs, if applicable. The management activities will be conducted in accordance with the terms and conditions of the approved UMBI as agreed to by WLS, USACE, and the IRT. 11 Adaptive Management Plan The Sponsor will conduct post-construction monitoring activities and routine maintenance as needed for the duration of the monitoring period. The Sponsor will notify the USACE immediately if monitoring results or visual observations demonstrate that performance standards cannot be achieved. In the event the Bank site or a specific component of the Bank site fails to achieve the performance standards as specified in the mitigation plan, the sponsor shall notify the IRT and develop a corrective action plan and facilitate remedial actions. The Sponsor is responsible for providing any necessary permits to implement the corrective action plan that describes the extent and nature of the work to be performed. If the USACE determines that the Bank is not meeting performance standards, or the Sponsor is not complying with the terms of the instrument, the USACE may take appropriate actions, including but not limited to holding credit sales, utilizing financial assurances, and/or terminating the instrument. The site will be monitored on a regular basis and a physical inspection of the site will take place at least once a year throughout the post-construction monitoring period until performance standards are met. These site inspections may identify site components and features that require routine maintenance. Routine maintenance should be expected most often in the first two years following site construction. 12 Financial Assurances CONFIDENTIAL The Sponsor will provide financial assurances in the form of casualty insurance or a performance bond that is acceptable to the USACE and sufficient to assure successful completion of all mitigation bank activities, reporting and monitoring, and any remedial work required pursuant to the approved Mitigation Plan and/or UMBI. The insurance policy or performance bond will be submitted for review and approval by the USACE. The financial assurance will cover the cost estimates for providing the mitigation bank activities such as site mobilization and construction, annual monitoring, and reporting as outlined in Table 21 and broken out by annual cost below. There will be a financial assurance for the construction phase in the amount of $835,000, and that financial assurance will be retired following completion of construction and planting. Then, a monitoring financial assurance in the amount of $224,000 will be provided to assure completion of seven years of monitoring, and reporting, and any remedial work required during the monitoring period. Draft Mitigation Plan Swiftie Mitigation Bank Page 55 Table 21. Financial Assurances Category Item Estimated Cost Construction Site Earthwork, Amenities, & Planting $835,000 Monitoring & Maintenance Monitoring Activities and Annual Reports through 7 years $110,000 Land Management and Routine Maintenance $49,000 Contingency / Remedial Action $65,000 The annual monitoring costs for Table 21 are itemized below and each item includes direct costs. Annual Monitoring Costs Price Per Task Gauge downloads/maintenance $4,000.00 Vegetation Plot Measurements (44 plots) $4,714.00 On-site Physical Measurements (6 XS) $2,500.00 Data Processing and Analysis $2,000.00 Report Preparation $2,500.00 TOTAL ANNUAL MONITORING COSTS $15,714.00 Annual Maintenance Costs Price Per Task Invasive Species Vegetation and Annual Maintenance $7,000 The monitoring financial assurance will be reduced following approval of each annual monitoring report as provided in the financial assurance policy; however, monitoring years 1 through 3 will keep the full contingency amount of $65,000 and the contingency will be reduced starting in monitoring year 4. The monitoring financial assurance will be retired in total following official notice of site close-out from the IRT. Financial assurances shall be payable to a standby trust or other designee at the direction of the oblige or lender. Financial assurances structured to provide funds to the USACE in the event of default by the Bank Sponsor are not acceptable. The USACE shall receive notification at least 120 days in advance of any termination or revocation. In the event of Sponsor default, TRLC has agreed to receive the endowment funds and will ensure the mitigation work is successfully completed. Draft Mitigation Plan Swiftie Mitigation Bank Page 56 13 References Alderman, John M., Alvin L. Braswell, et al. 1993. Biological inventory: Swift Creek Subbasin. NC Wildlife Resources Commission. 133 pp. Doll, Barbara A., A.D. Dobbins, J. Spooner, D.R. Clinton and D.A. Bidelspach, 2003, Hydraulic Geometry Relationships for Rural North Carolina Coastal Plain Streams, NC Stream Restoration Institute. Doll, B.A., D.E. Wise-Frederick, C.M. Buckner, S.D. Wilkerson, W.A. Harman, R.E. Smith, and J. Spooner. 2002. Hydraulic geometry relationships for urban streams throughout the Piedmont of North Carolina. Journal of the American Water Resources Association 38(3): 641-651. Dooley and Maschhoff, 2003. Functional requirements and design parameters for restocking coarse woody features in restored and enhanced wetlands. Doyle, Martin W. et al. “Effective discharge analysis of ecological processes in streams.” Water Resources Research, vol. 41, no. 11, 2005. Dunne, T. & Leopold, L.B. (1978): Water in Environmental Planning W.HG. Freeman Co., San Francisco, 818 pp. Ecological Flows Science Advisory Board (EFSAB). 2013. Recommendations for Estimating Flows to Maintain Ecological Integrity in Streams and Rivers in North Carolina. Federal Interagency Stream Restoration Working Group (FISRWG). 1998. Stream corridor restoration: Principles, processes and practices. National Technical Information Service. Springfield, VA. Griffith, G.E., et al. 2002. Ecoregions of North Carolina. Reston, VA. United States Geological Survey. Harman, W., R. Starr, M. Carter, K. Tweedy, M. Clemmons, K. Suggs, C. Miller. 2012. A function based framework for developing stream assessments, restoration goals, performance standards and standard operating procedures. U.S. Environmental Protection Agency, Office of Wetlands. Harman, W., R. Starr. 2011. Natural Channel Design Review Checklist. US Fish and Wildlife Service, Chesapeake Bay Field Office, Annapolis, MD and US Environmental Protection Agency, Office of Wetlands, Oceans, and Watersheds, Wetlands Division. Washington D.C. EPS 843-B-12-005. Hey, R.D. 2006. Fluvial Geomorphological Methodology for Natural Stable Channel Design. Journal of American Water Resources Association. April 2006. Vol. 42, No. 2. pp. 357-374. AWRA Paper No. 02094. Johnson, P.A., and T.M. Heil, 1996. Uncertainty in Estimating Bankfull Conditions. Journal of the American Water Resources Association 32(6): 1283-1292. KCI Associates of NC, DMS. 2010. Using Pressure Transducers for Stream Restoration Design and Monitoring. Kilpatrick FA, Barnes HH Jr. 1964. Channel geometry of Piedmont streams as related to frequency of floods, Washington, DC. Professional Paper 422 E. Professional Paper 422 E. US Geological Survey. Knighton, A. D., Fluvial Forms and Processes: A New Perspective, Arnold, London, 1988. Lee, T.L, Peet, R.K., Roberts, S.D., and Wentworth, T.R. 2006. CVS-EEP Protocol for Recording Vegetation, Version 4.2. http://cvs.bio.unc.edu/protocol/cvs-eep-protocolv4.2- lev1-2.pdf. Draft Mitigation Plan Swiftie Mitigation Bank Page 57 Leopold, Luna B., 1994. A View of the River. Harvard University Press. Cambridge, Mass. Nixon M. 1959. A study of bankfull discharge of rivers in England and Wales. Proceedings of the Institution of Civil Engineers 12: 157–174. North Carolina Stream Functional Assessment Team, 2015. “NC Stream Assessment Method (NC SAM) User Manual”. Version 2.1, August 2015. North Carolina Wetland Functional Assessment Team, 2016. “NC Wetland Assessment Method (NC WAM) User Manual”. Version 5.0, February 2016. North Carolina Department of Environmental Quality, 2019. “DWR Surface Water Classifications.” North Carolina Division of Mitigation Services (NCDMS). 2018. “Tar-Pamlico River Basin Restoration Priorities.” North Carolina Division of Water Resources (NCDWR), 2010. “Methodology for Identification of Intermittent and Perennial Streams and Their Origins”, v 4.11. North Carolina Geological Survey (NCGS), 1985. North Carolina Department of Environment and Natural Resources, Raleigh, NC. Cited from http://www.geology.enr.state.nc.us/usgs/geomap.htm on August 2, 2023. Poff, N. LeRoy, et al. “The Natural Flow Regime.” BioScience, vol. 47, no. 11, 1997, pp. 769-784. Postel, Sandra and Brian D. Richter. “Rivers for Life: Managing Water For People And Nature.” 2003. Power, M. E., A. Sun, G. Parker, W. E. Dietrich, J. Timothy, and J. T. Wootton. 1995. “Hydraulic food-chain models: an approach to the study of food-web dynamics in large rivers.” BioScience, 45: 159–167. Resh, Vincent H., et al. “The Role of Disturbance in Stream Ecology.” Journal of the North American Benthological Society, vol. 7, no. 4, 1988, pp. 433–55. Rosgen, D.L. 1994. A Classification of Natural Rivers. Catena 22:169-199. 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. Scherrer, E. 1999. Using Microtopography to Restore Wetland Plant Communities in Eastern North Carolina. Schlosser, Issac J. “Flow Regime, Juvenile Abundance, and the Assemblage Structure of Stream Fishes.” Ecology: Ecological Society of America, vol. 66, no. 5, 1985, pp. 1484-1490. Schumm, S. A. 1960. The shape of alluvial channels in relation to sediment type (Geological Survey Professional Paper No. 352-B. Simon, Andrew. 1989. A model of channel response in disturbed alluvial channels. Earth Surface Processes and Landforms. Volume 14, Issue 1, pg 11–26. Sweet, W.V. and J.W. Geratz. 2003. Bankfull Hydraulic Geometry Relationships and Recurrence Intervals for North Carolina’s Coastal Plain. Journal of the American Water Resources Association 39(4):861-871. Draft Mitigation Plan Swiftie Mitigation Bank Page 58 United States Geological Survey (USGS). 2011. United States Army Corps of Engineers (USACE). 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. Environmental Laboratory. US Army Engineer Waterways Experiment Station. Vicksburg, MS. United States Army Corps of Engineers (USACE). 1997. Corps of Engineers Wetlands Research Program. Technical Note VN-RS-4.1. Environmental Laboratory. U.S. Army Engineer Waterways Experiment Station. Vicksburg, MS. United States Army Corps of Engineers (USACE). 2003. Stream Mitigation Guidelines, April 2003, U.S. Army Corps of Engineers. Wilmington District. United States Army Corps of Engineers (USACE). 2005. Technical Standard for Water-Table Monitoring of Potential Wetland Sites. ERDC TN-WRAP-05-2. United States Army Corps of Engineers (USACE). 2016. Notification of Issuance of Guidance for Compensatory Stream and Wetland Mitigation Conducted for Wilmington District, October 2016, U.S. Army Corps of Engineers. Wilmington District. United States Army Corps of Engineers (USACE). 2008. Compensatory Mitigation for Losses of Aquatic Resources; Final Rule dated April 10, 2008 of the Federal Register Vol. 73, No. 70. United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS) Soil Survey Division. 1979. Soil Survey, Edgecombe County, NC. United States Department of Agriculture, Natural Resources Conservation Service. 2018. Field Indicators of Hydric Soils in the United States, Version 8.2. L.M. Vasilas, G.W. Hurt, and J.F. Berkowitz (eds.). USDA, NRCS, in cooperation with the National Technical Committee for Hydric Soils. United States Department of Interior, Fish and Wildlife Service (USFWS). Threatened and Endangered Species in North Carolina (County Listing). Edgecombe County. 2023. Williams, Garnett P. “Bank-full discharge of rivers.” Water Resources Research, vol. 14, no. 6, 1978, pp. 1141-1154. Wolman, M. Gordon and Luna Bergere Leopold. “River flood plains: Some observations on their formation.” 1957. Figures Swiftie Mitigation Bank Figure 1 – Project Location Map Figure 2 – Geographic Service Area Map Figure 3 – USGS Topographic Map Figure 4 – NRCS Soils Map Figure 5a – LiDAR Map Figure 5b – LiDAR Map Figure 6 – FEMA Floodplain Map Figure 7a – 1994 Aerial Photograph Figure 7b – 2008 Aerial Photograph Figure 7c – 2013 Aerial Photograph Figure 8 – Existing Aquatic Resources Map Figure 9 – Proposed Mitigation Features Map Figure 10 – Proposed Monitoring Map Figure 11 – Proposed Buffer Map Figure 12 – Reference Site Locations Map Palustrine Group LLC 4812-20-1970 Tar River Land Conservancy 4812-33-5285 ±0 1,500 3,000 Feet Figure1Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Map Projection: NAD_1983_StatePlane_NC_FIPS_3200_Feet Project Location Map !( o o PITT CO HALIFAX CO NASH CO MARTIN CO EDGECOMBE CO Lower Tar03020103 Fishing03020102 Upper Tar03020101 Lower Roanoke03010107 Contentnea03020203 Proposed Conservation Easement Parcel Boundary !(Project Location Vicinity Streams (NHD) HUC-8 5-Mile Aviation Zone o Airport Edgecombe County NC Counties 0 5 10 Miles075150Miles Project is located in: HUC8 - 03020101 HUC12 - 030201010803 Date: 9/8/2023 Legend Service Layer Credits: Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, (c) OpenStreetMap contributors, and the GIS User Community 36.00490, -77.60111 !( SiteLocation Figure2Service Area Map Date: 8/15/2023 !(Site Location Service Area (HUC8 - 03020101) ´0 10 205 Miles 1 inch = 10 miles Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Figure3USGS Topo QuadDraughn, Tarboro Date: 9/21/2023 Approximate Project BoundaryParcel BoundaryS100 Watershed (32 ac)S200 Watershed (90 ac)S300 Watershed (44 ac)S400 Watershed (468 ac)S500 Watershed (279 ac)S600 Watershed (348 ac)S700 Watershed (33 ac) ´0 2,000 4,0001,000 Feet 1 inch = 2,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation ProjectHUC8 Tar-Pam 01 - 03020101Edgecombe County, North Carolina 33 S 1 0 0 S200 S300 S400S500 S60 0 Swi f t C r e e k W h i t e O a k S w a m p S700 Ro Wh Ro TaB RaA DgA Cc WaB Wh Ro Lu RaA WkB GoA BB RoWaB TaB CeB TaB NoB WaB TaB Wh Ba RaA TaB DgA AaA Wh CeB WaB TaB GoA TaB TaB StB WaB NoA CeB NoB We AaA LyA Ro NoB TaB StB TaB WkB WkB WaB TaB AaA Ro AaA RaA CeB AaA CeB NoA Ro GoA AaA NoB StB NoA TaB RaA LyA TaB TaB AaA GoA RaA AaA TaB AaA NoA WaB AaA CeB AaA AaA AaA TaB WkB TaB AaA AaA StB GoA AaA Wh W GoA NoB Ro WkB WkB StB We TaB RaA LyA CeB W WaB RaA NoBWaB GoA GoA GoA DgA TaB NoA Figure4NRCS Soils Map Date: 9/8/2023 Soil Type AaA: Altavista fine sandy loam, 0 to 3% slopes BB: Bibb soils (Hydric) Ba: Ballahack fine sandy loam (Hydric) Cc: Chewacla silt loam CeB: Conetoe loamy sand, 0 to 4% slopes DgA: Dogue fine sandy loam, 0 to 3% slopes GoA: Goldsboro fine sandy loam, 0 to 2% slopes Lu: Lumbee fine sandy loam LyA: Lynchburg fine sandy loam, 0 to 2% slopes, So Coastal Plain (Hydric) NoA: Norfolk loamy sand, 0 to 2% slopes NoB: Norfolk loamy sand, 2 to 6% slopes RaA: Rains fine sandy loam, 0 to 2% slopes, So Coastal Plain (Hydric) Ro: Roanoke loam (Hydric) StB: State loamy sand, 0 to 4% slopes TaB: Tarboro loamy sand, 0 to 6% slopes W: Water WaB: Wagram loamy sand, 0 to 6% slopes We: Wahee fine sandy loam Wh: Wehadkee silt loam (Hydric) WkB: Wickham sandy loam, 0 to 4% slopes ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Approximate Project Boundary Parcel Boundary Existing Stream ! Elevation79.9 ft ! Elevation69.1 ft ! Elevation68.4 ft ! Elevation69.8 ft ! Elevation60.2 ft ! Elevation57.6 ft S200 S 1 0 0 S500 S300 S400 Figure5aLiDAR Map Date: 9/8/2023 Approximate Project Boundary Parcel Boundary Existing StreamLiDAR Elevation (ft) High : 94.0414 Low : 53.9585 ´0 500 1,000250 Feet 1 inch = 500 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina !Elevation49.8 ft ! Elevation53.9 ft ! Elevation56.7 ft ! Elevation57.6 ft S500 Swi f t C r e e k W h i t e O a k S w a m p S700 Figure5bLiDAR Map Date: 9/8/2023 Approximate Project Boundary Parcel Boundary Existing StreamLiDAR Elevation (ft) High : 74.5389 Low : 48.5213 ´0 500 1,000250 Feet 1 inch = 500 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina 33 S 1 0 0 S200 S300 S400S500 S60 0 Swi f t C r e e k W h i t e O a k S w a m p S700 Figure6FEMA Floodplain Map Date: 9/8/2023 Approximate Project Boundary Parcel Boundary Existing StreamFEMA Floodzone 100-yr Floodplain (Zone AE) 100-yr Floodplain (Floodway) 500-yr Floodplain ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Project boundary located within FEMA FIRM Panel(s): 3720480200K, 3720481200K 3720480100K, 3720481100K Effective Date: 06/2015 Figure7a1994 Aerial Map Date: 9/8/2023 Approximate Project Boundary ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Figure7b2008 Aerial Map Date: 9/8/2023 Approximate Project Boundary ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Figure7c2013 Aerial Map Date: 9/8/2023 Approximate Project Boundary ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina "/" "/" White OakSwamp Rd 33 W01 W04 W02 W06 W05 Hydric Soil(W03) S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Dit c h 4 Ditc h 3 Ditch 2 D i t c h 1 Figure8Existing Aquatic Resources Map Date: 9/19/2023 Approximate Project Boundary Parcel Boundary Existing Roads Existing Stream Existing Ditches Existing Wetland (verified) Existing Hydric Soil Open Water Feature "/"Existing Culverts Existing Utility (powerline) ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina "/" "/" White OakSwamp Rd 33 W01 W02 W03 W04W06 W05 Swift Creek MitigationBank As-built Stream S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Figure9Proposed Mitigation Features Map Date: 9/19/2023 Approximate Project Boundary Parcel Boundary Existing Utility (powerline) "/"Existing Culverts (to remain) Existing Roads Existing Ditches Open Water Feature Stream Mitigation Restoration HWV Restoration Enhancement Preservation No Credit Wetland Mitigation Riparian Enhancement Non-Riparian Enhancement Riparian Re-establishment Non-Riparian Re-establishment Preservation ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Swift Creek Mitigation Bank Easement Boundary Swift Creek Mitigation Bank As-built Stream ")! 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") ") ") ") ") ") !. !. !. !! !!!! !!!! !! !! !! !! !! !! !! 33 W01 W02 W03 W04 S300 S500 S400 S20 0 S 1 0 0 Figure10Proposed Monitoring Map Date: 9/19/2023 Approximate Project Parcel Boundary ")Fixed Vegetation Plots ")!Random Vegetation Plots ")Fixed Additional DWR Vegetation Plots (20) !.Flow Gauge !!Groundwater Gauge !.Crest GaugeCross Section Headwater Valley Riffle Pool ´0 500 1,000250 Feet 1 inch = 500 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Stream Mitigation Restoration HWV Restoration Enhancement Preservation No Credit Existing Ditches Buffer and Nutrient Mitigation Coastal HWV Buffer Restoration 0-100 ft Coastal HWV Buffer Restoration 101-200 ft Buffer Restoration 0-100 ft Buffer Preservation 0-100ft Buffer Preservation 101-200ft Nutrient 0-100 ft Nutrient 101-200 ft Wetland Mitigation Riparian Enhancement Non-Riparian Enhancement Riparian Re-establishment Non-Riparian Re-establishment Preservation White OakSwamp Rd 33 W01 W02 W03 W04W06 W05 S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Figure11Proposed Buffer Map Date: 9/19/2023 Approximate Project Boundary Parcel BoundaryStream Mitigation Restoration HWV Restoration Enhancement Preservation No Credit Existing Ditches Buffer and Nutrient Mitigation Coastal HWV Buffer Restoration 0-100 ft Coastal HWV Buffer Restoration 101-200 ft Buffer Restoration 0-100 ft Buffer Preservation 0-100ft Buffer Preservation 101-200ft Nutrient 0-100 ft Nutrient 101-200 ft ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina !( Site Location Figure12Reference SiteLocation Map Date: 9/21/2023 !(Site Location ^_Reference Site Location ´0 10 205Miles 1 inch = 10 miles Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation ProjectHUC8 Tar-Pam 01 - 03020101Edgecombe County, North Carolina Headwater Stream/Wetland Reference Wetland Reference Hollowell35.354143, -78.115899 Hornpipe35.133994, -77.655111 Turtle Creek34.934181, -77.584147 Stream ReferenceReachesStream ReferenceReaches Stream Reference Reach ^_ Appendix A - Design Plan Sheets Swiftie Mitigation Project © 2023 Microsoft Corporation © 2023 Maxar ©CNES (2023) Distribution Airbus DS © 2023 Microsoft Corporation © 2023 Maxar ©CNES (2023) Distribution Airbus DS C E CE CE CE C E CE CE CE C E CE CE CE CE CE CE CE CE CE CE C E CE CE CE CE CE CE CE CE CE C E CECE C E C E CE CE CE C E CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE C E CE C E CE CE CE CE NOTES: 1. THE PLANS HAVE BEEN CREATED ON ANSI D FULL BLEED (22"X34") PAPER. FOR REDUCTIONS, REFER TO GRAPHIC SCALE. WHEN PLOTTED ON 11"X17" PAPER, THIS PLAN SET WILL NOT BE TO SCALE. 2. THE PLANS HAVE BEEN CREATED FOR FULL COLOR PLOTTING. ANY SET OF THE PLANS THAT IS NOT PLOTTED IN FULL COLOR SHALL NOT BE CONSIDERED ADEQUATE FOR CONSTRUCTION PURPOSES. **WARNING**: INFORMATION MAY BE LOST IN COPYING AND/OR GRAY SCALE PLOTTING. SITE35.9984, -77.6062 USGS 8-DIGIT HUC BOUNDARY MAP N.T.S. TAR-PAMLICO HUC ID: 03020101 GEOGRAPHIC SERVICE AREA TI T L E S H E E T 1 VICINITY MAP RESTORATION LEGEND CONSERVATION EASEMENT CE CE STREAM MITIGATION 00 SCALE IN FEET 05001000 1000 SWIFTIE MITIGATION PROJECT EDGECOMBE COUNTY, NORTH CAROLINA DRAFT MITIGATION PLAN USACE ACTION ID NUMBER: SAW-2019-00631 TYPE OF WORK: STREAM,WETLAND, NUTRIENT, AND BUFFER MITIGATION DRAWING LIST 1 2 3 4 5-13 14-15 16 17-20 21-23VICINITY MAP LOCATION MAPTITLE SHEET GENERAL & SPECIAL NOTES PROJECT KEYMAP & LEGEND TYPICAL SECTIONS PLAN & PROFILE WETLAND GRADING PLAN PLANTING PLAN TABLES & NOTES PLANTING PLAN DETAILS 000 SCALE IN MILES 48 8 SITE WETLAND MITIGATION RIPARIAN RE-ESTABLISHMENT RIPARIAN ENHANCEMENT NO R T H C A R O L I N A 3 3 WHIT E O A K S W A M P R D . SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : A _ S W I F T I E _ C O V E R . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 PRESERVATION ENHANCEMENT NO-CREDIT RIPARIAN PRESERVATION NON-RIPARIAN RE-ESTABLISHMENT NON-RIPARIAN ENHANCEMENT 2 GE N E R A L & S P E C I A L N O T E S GENERAL NOTES 1. THE PROJECT (35.9984° N, -77.6062° W) IS LOCATED IN EDGECOMBE COUNTY, NORTH CAROLINA WITHIN THE UPPER TAR RIVER BASIN (8-DIGIT HUC 03020101) AS SHOWN ON THE COVER SHEET VICINITY MAP. TO ACCESS THE SITE FROM RALEIGH, NC, FOLLOW I-40 EAST, TAKE EXIT 14 FOR US-64 E/US-264 E TOWARD ROCKY MT/WILSON, CONTINUE ONTO I-87, CONTINUE ONTO US-64 E, TAKE EXIT 470 FOR NC-97/ATLANTIC AVE, TURN RIGHT ONTO NC-97 E/ATLANTIC AVE, TURN RIGHT ONTO NC-97 E, TURN LEFT ONTO NEW HOPE CHURCH RD, TURN RIGHT ONTO BATTLEBORO-LEGGETT RD, TURN LEFT ONTO SPEIGHTS CHAPEL RD, TURN RIGHT ONTO WHITE OAK SWAMP RD, TURN RIGHT ONTO NC-33 E, THE SITE WILL BE ON THE RIGHT IN 4 MILES. 2. THE PROJECT SITE BOUNDARIES ARE SHOWN ON THE DESIGN PLANS AS THE PROPOSED CONSERVATION EASEMENT. THE CONTRACTOR SHALL PERFORM ALL RELATED WORK ACTIVITIES WITHIN THE PROJECT SITE BOUNDARIES AND/OR WITHIN THE LIMITS OF DISTURBANCE (LOD). THE PROJECT SITE SHALL BE ACCESSED THROUGH THE DESIGNATED ACCESS POINTS SHOWN ON THE ESC PLAN. THE CONTRACTOR IS RESPONSIBLE FOR MAINTAINING PERMITTED ACCESS THROUGHOUT ALL CONSTRUCTION ACTIVITIES. 3. THE CONTRACTOR SHALL TAKE ALL NECESSARY PRECAUTIONS AND MEASURES TO PROTECT ALL PROPERTIES FROM DAMAGE. THE CONTRACTOR SHALL REPAIR ALL DAMAGE CAUSED BY HIS/HER OPERATIONS TO ALL PUBLIC AND PRIVATE PROPERTY AND LEAVE THE PROPERTY IN GOOD CONDITION AND/OR AT LEAST EQUIVALENT TO THE PRE-CONSTRUCTION CONDITIONS. UPON COMPLETION OF ALL CONSTRUCTION ACTIVITIES, THE AREA IS TO BE RESTORED TO A CONDITION EQUAL TO OR BETTER THAN FOUND PRIOR TO CONSTRUCTION. 4. THE TOPOGRAPHIC BASE MAP WAS DEVELOPED USING SURVEY DATA COLLECTED BY ASCENSION LAND SURVEYING IN SUMMER 2023. THE HORIZONTAL DATUM WAS TIED TO NAD83/2011 NC STATE PLANE COORDINATE SYSTEM, US SURVEY FEET AND NAVD88 VERTICAL DATUM USING VRS NETWORK AND NCGS MONUMENT. IT IS POSSIBLE THAT EXISTING ELEVATIONS AND SITE CONDITIONS MAY HAVE CHANGED SINCE THE ORIGINAL SURVEY WAS COMPLETED. IT IS THE CONTRACTOR'S RESPONSIBILITY TO CONFIRM EXISTING GRADES AND ADJUST QUANTITIES, EARTHWORK, AND WORK EFFORTS AS NECESSARY. 5. THE CONTRACTOR SHALL VISIT THE CONSTRUCTION SITE AND THOROUGHLY FAMILIARIZE HIM/HERSELF WITH ALL EXISTING CONDITIONS. PRIOR TO BEGINNING CONSTRUCTION. THE CONTRACTOR SHALL VERIFY THE ACCURACY AND COMPLETENESS OF THE CONSTRUCTION SPECIFICATIONS AND DESIGN PLANS REGARDING THE NATURE AND EXTENT OF THE WORK DESCRIBED. 6. THE CONTRACTOR SHALL BRING ANY DISCREPANCIES BETWEEN THE CONSTRUCTION PLANS AND SPECIFICATIONS AND/OR FIELD CONDITIONS TO THE ATTENTION OF THE ENGINEER BEFORE CONSTRUCTION BEGINS. 7. THERE SHALL BE NO CLEARING OR REMOVAL OF ANY NATIVE SPECIES VEGETATION OR TREES OF SIGNIFICANCE, OTHER THAN THOSE INDICATED ON THE PLANS OR AS DIRECTED BY THE ENGINEER. 8. THE CONTRACTOR SHALL EXERCISE CARE DURING GRADING ACTIVITIES IN THE VICINITY OF NATIVE VEGETATION AND TREES OF SIGNIFICANCE AT THE CONSTRUCTION SITE. ALL GRADING IN THE VICINITY OF TREES NOT IDENTIFIED FOR REMOVAL SHALL BE MADE IN A MANNER THAT DOES NOT DISTURB THE ROOT SYSTEM WITHIN THE DRIP LINE OF THE TREE. 9. WORK ACTIVITIES ARE BEING PERFORMED AS AN ENVIRONMENTAL RESTORATION PROJECT. THE CONTRACTOR SHALL MAKE ALL REASONABLE EFFORTS TO REDUCE SEDIMENT LOSS, PROTECT PUBLIC SAFETY, AND MINIMIZE DISTURBANCE OF THE SITE WHILE PERFORMING THE CONSTRUCTION WORK. ALL AREAS SHALL BE KEPT NEAT, CLEAN, AND FREE OF ALL TRASH AND DEBRIS, AND ALL REASONABLE PRECAUTIONS SHALL BE TAKEN TO AVOID DAMAGE TO EXISTING ROADS, VEGETATION, TURF, STRUCTURES, AND PRIVATE PROPERTY. 10. PRIOR TO START OF WORK, THE CONTRACTOR SHALL SUBMIT THE SOURCE OF MATERIALS, INCLUDING AGGREGATES, EROSION CONTROL MATTING, WOOD AND NATIVE PLANTING MATERIAL TO THE ENGINEER FOR REVIEW AND APPROVAL. NO WORK SHALL BE PERFORMED UNTIL THE SOURCE OF MATERIAL IS APPROVED BY THE ENGINEER. 11. THE CONTRACTOR SHALL BE HELD SOLELY RESPONSIBLE FOR ANY NECESSARY COORDINATION BETWEEN THE VARIOUS COUNTY, STATE OR FEDERAL AGENCIES, UTILITY COMPANIES, HIS/HER SUB-CONTRACTORS, AND THE ENGINEER FOR THE DURATION OF THE PROJECT. 12. PRIOR TO START OF WORK, THE CONTRACTOR SHALL SUBMIT THEIR DETAILED PLANTING SCHEDULE TO THE ENGINEER FOR REVIEW. NO WORK SHALL BE PERFORMED UNTIL THIS SCHEDULE IS APPROVED BY THE ENGINEER. THE DETAILED PLANTING SCHEDULE SHALL CONFORM TO THE PLANTING REVEGETATION PLAN AND SHALL INCLUDE A SPECIES LIST AND TIMING SEQUENCE. 13. THE CONTRACTOR IS REQUIRED TO INSTALL IN-STREAM STRUCTURES AND CULVERT PIPES USING A BACKHOE/EXCAVATOR WITH A HYDRAULIC THUMB OF SUFFICIENT SIZE TO PLACE STRUCTURES AND MATERIALS INCLUDING LOGS, STONE, AND TEMPORARY WOOD MAT STREAM CROSSINGS. 1. NO GRADING ACTIVITIES SHALL OCCUR BEYOND THE PROJECT LIMITS OF DISTURBANCE (LOD) AS SHOWN ON THE DESIGN PLANS. 2. ONCE DESIGN GRADES ARE ACHIEVED AS SHOWN ON THE PLAN AND PLAN AND PROFILE, THE WETLAND AND FLOODPLAIN AREAS SHALL BE ROUGHENED USING TECHNIQUES DESCRIBED IN THE CONSTRUCTION SPECIFICATIONS. 3. ALL SUITABLE SOIL MATERIAL REQUIRED TO FILL AND/OR PLUG EXISTING DITCHES AND/OR STREAM CHANNEL SHALL BE GENERATED ON-SITE AS DESCRIBED IN THE CONSTRUCTION SPECIFICATIONS. ANY EXCESS SPOIL MATERIAL SHALL BE STOCKPILED IN DESIGNATED AREAS AND OR HAULED TO AN ON-SITE LOCATION APPROVED BY THE ENGINEER. NO TEMPORARY STOCKPILES OR SPOIL MATERIAL SHALL REMAIN WITHIN FEMA FLOODPLAIN LIMITS AS SHOWN ON THE PLANS. 4. ANY OFFSITE BORROW MATERIAL MUST COME FROM A SITE WITH AN APPROVED ESC PLAN. ANY TRASH/DEBRIS OR WASTE MATERIAL GENERATED BY GRADING ACTIVITIES MUST BE DISPOSED OF AT A REGULATED FACILITY PER DWR RULES AND REGULATIONS (15A NCAC 4B .0110). CONTRACTOR SHALL REVIEW ALL APPLICABLE PERMITS FOR THIS PROJECT AND ALL WORK SHALL BE IN STRICT CONFORMANCE WITH THE CONDITIONS OF EACH PERMIT. GOVERNING SPECIFICATIONS THE CONSTRUCTION OF THE REALIGNED STREAM(S) SHALL FOLLOW ALL GOVERNING AUTHORITIES' REGULATIONS. BENCHMARKS THE CONTRACTOR SHALL BE RESPONSIBLE FOR HOLDING, SETTING, AND MAINTAINING BENCHMARKS LOCATIONS THROUGHOUT THE LIFE OF THE PROJECT. IN THE EVENT THAT A BENCHMARK IS DISTURBED, THE CONTRACTOR AS DIRECTED BY THE ENGINEER, WILL RELOCATE OR REESTABLISH THE BENCHMARK. NO ADDITIONAL PAYMENT OR COMPENSATION WILL BE MADE FOR THIS WORK. ELEVATIONS ALL ELEVATIONS SHOWN REFER TO NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD 88). COORDINATES THE PROJECT DATUM ON THESE PLANS ARE BASED UPON THE NORTH CAROLINA STATE PLANE SYSTEM. THE HORIZONTAL DATUM IS BASED ON THE NORTH AMERICAN DATUM OF 1983 (2011) (NAD 83). GRID FACTORS ARE NOT REQUIRED WHEN MAKING FIELD MEASUREMENTS. VERIFICATION OF DIMENSIONS THE CONTRACTOR IS RESPONSIBLE FOR VERIFICATION OF ALL PLAN AND ELEVATION DIMENSIONS PRIOR TO ORDERING MATERIALS FOR THE CONSTRUCTION OF THE VARIOUS BID ITEMS IN THE CONTRACT. TREE CLEARING TREE CLEARING ON THIS PROJECT SHALL BE PERFORMED ONLY TO THE EXTENT AND TO THE LIMITS NECESSARY TO CONSTRUCT AND INSTALL THE MEASURES AS SHOWN ON THESE PLANS. WASTE MATERIAL ALL MATERIAL EXCAVATED AND NOT REUSED IN THE CONSTRUCTION OF THIS PROJECT SHALL BE REMOVED FROM THE PROJECT BOUNDARY AND UNUSED WORK MATERIAL DISPOSED OF BY THE CONTRACTOR IN LOCATION(S) APPROVED BY THE ENGINEER. FILTER FABRIC NON-WOVEN FILTER FABRIC SHALL BE PLACED AT IN-STREAM STRUCTURES SHOWN IN THE DETAILS UNLESS OTHERWISE DIRECTED BY THE ENGINEER. UTILITIES THE CONTRACTOR IS RESPONSIBLE FOR THE INVESTIGATION, LOCATION, SUPPORT, PROTECTION, AND RESTORATION OF ALL EXISTING UTILITIES AND APPURTENANCES WHETHER SHOWN ON THESE PLANS OR NOT. IT IS THE CONTRACTOR'S RESPONSIBILITY TO ASCERTAIN THE STATUS AND LOCATION OF EACH UTILITY WHEN PERFORMING WORK WHICH MAY AFFECT THESE FACILITIES, INCLUDING PROBING, EXCAVATION, OR ANY OTHER PRECAUTION REQUIRED TO CONFIRM LOCATION. THE CONTRACTOR SHALL EXPOSE ALL UTILITIES OR STRUCTURES PRIOR TO CONSTRUCTION TO VERIFY THE VERTICAL AND HORIZONTAL EFFECT ON PROPOSED CONSTRUCTION. THE CONTRACTOR SHALL CALL, TOLL FREE, NORTH CAROLINA 811 CENTER (1-800-632-4949) TWO DAYS PRIOR TO CONSTRUCTION AND SHALL NOTIFY ALL UTILITY COMPANIES AT LEAST 48 HOURS PRIOR TO WORK IN THE VICINITY OF THEIR UNDERGROUND LINES. THE CONTRACTOR WILL RE RESPONSIBLE FOR ANY DAMAGE OR DISRUPTION TO UTILITY LINES WHICH ARE KNOWN ACTIVE AND ARE TO REMAIN IN OPERATION. EROSION AND SEDIMENT CONTROL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE PERFORMED IN ACCORDANCE WITH THE ESC NOTES AND PLAN SHEETS. IN THE EVENT THAT THE TEMPORARY EROSION AND POLLUTION CONTROL MEASURES ARE ORDERED BY THE ENGINEER DUE TO THE CONTRACTOR'S NEGLIGENCE, CARELESSNESS, OR FAILURE TO INSTALL PERMANENT CONTROLS AS PART OF THE WORK AS SCHEDULED. SUCH WORK SHALL BE PERFORMED BY THE CONTRACTOR AT HIS OWN EXPENSE. THE FIRST ORDER OF WORK FOR THE CONTRACTOR IS TO INSTALL SEDIMENT CONTROL MEASURES AT THE EARLIEST POSSIBLE DATE. INITIAL CLEARING AND GRUBBING IS ONLY TO BE WHAT IS NECESSARY IN ORDER TO ACCOMPLISH THESE OPERATIONS. IN ADDITION, THE CONTRACTOR IS TO NAME AN INDIVIDUAL TO REVIEW THE EROSION CONTROL FEATURES AT A MINIMUM OF ONCE A WEEK DURING PERIODS OF HEAVY PRECIPITATION AND/OR ACTIVE CONSTRUCTION TO ASSESS THE SUCCESS OF THE EROSION CONTROL STRUCTURES, REVEGETATION EFFORTS, AND SEE THE REPLACEMENT, CLEANING, AND/OR INSTALLATION OF ADDITIONAL FEATURES IF NECESSARY ARE CARRIED OUT. SITE CLEANUP DURING CONSTRUCTION AND PRIOR TO ACCEPTANCE OF ANY PUBLIC IMPROVEMENTS, THE OWNER/DEVELOPER SHALL REMOVE OR CAUSE TO BE REMOVED ALL REFUSE, RUBBISH, UNUSED MATERIALS, EXCESS EARTH, FILL ROCK, DEBRIS, AND FOREIGN MATTER FROM ALL PUBLIC RIGHT OF WAY, IMPROVEMENTS, AND/OR EASEMENTS AS WERE DEPOSITED, LEFT, OR RESULTED FROM THE CONSTRUCTION IMPROVEMENTS OF ANY NATURE WITHIN THE DEVELOPMENT. SUCH REMOVAL SHALL TAKE PLACE WITHIN TWENTY-FOUR (24) HOURS AFTER BEING NOTIFIED BY THE COUNTY ENGINEER AND REGULATING AGENCIES. THIS WORK SHALL BE PERFORMED IN A MANNER WHICH PREVENTS EROSION AS WELL AS PREVENTS STORM WATER FROM ACCUMULATING OR PONDING ON THE SITE. THE WORK SHALL ALSO BE PERFORMED IN A MANNER THAT PREVENTS DISRUPTING OR IMPEDING SURFACE DRAINAGE FROM ONSITE OR OFFSITE SOURCES AND PREVENTS ANY NEGATIVE EFFECTS ON ADJACENT PROPERTIES. FEDERAL, STATE, AND LOCAL LAWS AND SAFETY REGULATIONS THE CONTRACTOR AND ANY SUB-CONTRACTORS SHALL CONFORM TO APPLICABLE OSHA SAFETY REGULATIONS. THE CONTRACTOR AND ANY SUB-CONTRACTORS SHALL BE SOLELY RESPONSIBLE FOR COMPLYING WITH ALL FEDERAL, STATE, AND LOCAL SAFETY REQUIREMENTS TOGETHER WITH EXERCISING PRECAUTIONS AT ALL TIMES FOR THE PROTECTION OF PERSONS INCLUDING EMPLOYEES AND PROPERTY. IT IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR AND SUB-CONTRACTOR TO INITIATE, MAINTAIN, AND SUPERVISE ALL SAFETY REQUIREMENTS, PRECAUTIONS, AND PROGRAMS IN CONNECTION WITH THE WORK. CLEARING & GRUBBING LIMITS CLEARING LIMITS SHALL BE EXTENDED TO A MAXIMUM LIMIT NECESSARY FOR CONSTRUCTION MATERIALS AND SHALL NOT EXTEND BEYOND CONSTRUCTION BOUNDARIES WHERE EARTHWORK ACTIVITIES ARE TO BE PERFORMED. GRUBBING SHALL ONLY TAKE PLACE WITHIN THE AREA AS NECESSARY. ALL COSTS ASSOCIATED WITH CLEARINGS & GRUBBING SHALL BE CONSIDERED INCIDENTAL TO BID ITEM CLEARING AND GRUBBING. A.AS-BUILT DRAWINGS - DURING CONSTRUCTION, THE CONTRACTOR AND THE ENGINEER SHALL WORK TOGETHER TO MAINTAIN A SET OF PRINTS SHOWING ANY CHANGES OR CORRECTIONS IN RED. THESE PRINTS SHALL BE SUBMITTED TO THE ENGINEER AT THE COMPLETION OF THE WORK. B.STREAM DESIGN DEFINITIONS 1.BANKFULL ELEVATION - BANKFULL ELEVATION IS THE POINT OF INCIPIENT FLOODING IN AN ALLUVIAL CHANNEL. 2.FLOODPLAIN SILL - A FLOODPLAIN SILL IS THE BURIED EXTENSION OF THE STRUCTURE AND IS LOCATED ACROSS THE BANKFULL BENCH OR FLOODPLAIN. 3.THALWEG - THE THALWEG IS THE LOWEST POINT OF THE BANKFULL CHANNEL ILLUSTRATED BY THE LONGITUDINAL PROFILE. THIS ELEVATION IS THE REFERENCE FOR ALL ELEVATIONS ON OR ALONG THE CHANNEL AND HYDRAULIC STRUCTURES DESCRIBED IN THIS SECTION AND SHOWN IN THE DESIGN DRAWINGS. 4.VANE ANGLE - THE VANE ANGLE IS THE SMALLEST ANGLE MEASURED BETWEEN A VANE AND A LINE TANGENT TO THE BANKFULL ELEVATION AT THE POINT WHERE THE VANE INTERSECTS THE BANK. THE VANE ANGLE SHALL BE BETWEEN TWENTY PERCENT (20%) AND THIRTY PERCENT (30%), OR AS SPECIFIED IN THE DATA TABLE AND/OR DETAILS. 5.VANE LENGTH - THE VANE LENGTH IS THE DISTANCE BETWEEN THE UPSTREAM LIMIT OF THE VANE ARM AT THE CHANNEL BED TO THE DOWNSTREAM INSERTION POINT OF THE VANE ARM INTO THE STREAM BANK. 6.VANE SLOPE - THE VANE SLOPE IS THE SLOPE OF THE VANE ARM FROM THE UPSTREAM LIMIT AT THE CHANNEL BED TO THE DOWNSTREAM INSERTION POINT OF THE VANE ARM INTO THE STREAM BANK. THE VANE SLOPE SHALL BE BETWEEN TWO PERCENT (2%) AND FOUR PERCENT (4%) OR AS SPECIFIED IN THE DATA TABLE OR DETAILS AND THE VANE ARMS SHALL TIE INTO THE BANKS AT HALF TO THREE QUARTERS OF THE BANKFULL ELEVATION OR AS SPECIFIED IN THE DETAILS. 7.SUBSTRATE RESTORATION - SUBSTRATE RESTORATION IS DESIGNED TO REPLACE AND RESTORE APPROPRIATE SUBSTRATE (SAND, GRAVEL, COBBLE, AND BOULDER) TO THE STREAM CHANNEL IN CASES WHERE COARSE SUBSTRATES OR BEDROCK ARE ABSENT FOLLOWING CHANNEL EXCAVATION. THE PURPOSE OF SUBSTRATE RESTORATION IS TO PROVIDE NATURAL SUBSTRATE AND EROSION AND SCOUR PROTECTION IN THE CHANNEL. 8.BASE FLOW - FOR THE PURPOSE OF THE DESIGN SPECIFICATIONS, A FLOW EQUAL TO ONE CUBIC FOOT PER SECOND (CFS) PER SQUARE MILE OF DRAINAGE AREA. C.FLOODPLAIN AND CHANNEL CONSTRUCTION 1. DEPENDING ON THE SITE CONDITIONS, SOME ADJUSTMENT OF THE STREAM CHANNEL AND STRUCTURES MAY BE NECESSARY. ANY WORK ASSOCIATED WITH CHANGING CHANNEL ALIGNMENT AND STRUCTURE LOCATIONS SHALL BE CONSIDERED INCIDENTAL TO CONSTRUCTION. 2. THE PROPOSED STREAM CHANNEL SHALL BE CONSTRUCTED BY FIRST EXCAVATING THE FLOODPLAIN TO THE ELEVATIONS AND DIMENSIONS SPECIFIED ON THE GRADING PLAN. THE PROPOSED STREAM CHANNEL SHALL THEN BE EXCAVATED TO THE PROPER DEPTHS INDICATED ON THE PROFILE AND CROSS-SECTIONS. THIS SHALL BE DONE AS UNCLASSIFIED EXCAVATION AND IS TYPICALLY ACCOMPLISHED WITH A TRACK EXCAVATOR WITH HYDRAULIC THUMB. ANY STOCKPILING OR DOUBLE-HANDLING OF MATERIALS NECESSARY TO BUILD THE CHANNEL SHALL BE CONSIDERED INCIDENTAL TO CONSTRUCTION. D.FILTER FABRIC 1. NON-WOVEN FILTER FABRIC SHALL ONLY BE USED WHEN COVERING A STRUCTURE. CONTRACTOR SHALL USE FABRIC AS SPECIFIED IN THE TECHNICAL SPECIFICATIONS OR APPROVED EQUIVALENT. SPECIAL NOTES FOR NATURAL STREAM DESIGN GRADING NOTES THE ENGINEER WILL PROVIDE CONSTRUCTION OBSERVATION DURING THE CONSTRUCTION PHASE OF THIS PROJECT. THE FOLLOWING CONSTRUCTION SEQUENCE SHALL BE USED DURING PROJECT CONSTRUCTION IMPLEMENTATION. PRIOR TO BEGINNING ANY LAND DISTURBING ACTIVITIES, NOTIFICATION OF AND RECEIPT OF THE CERTIFICATE OF APPROVAL MUST BE RECEIVED FROM NCDEQ-LAND QUALITY SECTION (LQS). THE CONTRACTOR SHALL CALL LQS AT 910-796-7215 TO SCHEDULE A PRE-CONSTRUCTION MEETING AT LEAST 72 HOURS PRIOR TO PROJECT ACTIVATION. THE CONTRACTOR SHALL REFER TO THE APPROVED EROSION AND SEDIMENTATION CONTROL PERMIT AND CORRESPONDING PLANS AND TECHNICAL SPECIFICATIONS FOR SPECIFIC CONSTRUCTION SEQUENCING ITEMS AND SHALL BE RESPONSIBLE FOR FOLLOWING THE APPROVED PLANS AND PERMIT CONDITIONS. 1. THE CONTRACTOR SHALL NOTIFY "NC 811" (1-800-632-4949) BEFORE ANY EXCAVATION BEGINS. ANY UTILITIES AND RESPECTIVE EASEMENTS SHOWN ON THE PLANS ARE CONSIDERED APPROXIMATE AND THE CONTRACTOR SHALL NOTIFY THE ENGINEER OF ANY DISCREPANCIES. THE CONTRACTOR IS RESPONSIBLE FOR LOCATING ALL UTILITIES AND ADJOINING EASEMENTS AND SHALL REPAIR OR REPLACE ANY DAMAGED UTILITIES AT HIS/HER OWN EXPENSE. 2. THE CONTRACTOR SHALL PREPARE STABILIZED CONSTRUCTION ENTRANCES, HAUL ROADS AND SHALL MOBILIZE EQUIPMENT, MATERIALS, PREPARE STAGING AREA(S) AND STOCKPILE AREA(S) AS SHOWN ON THE PLANS. HAUL ROADS SHALL BE PROPERLY MAINTAINED AT ALL TIMES DURING CONSTRUCTION. 3. CONSTRUCTION TRAFFIC SHALL BE RESTRICTED TO THE AREA DENOTED AS "LIMITS OF DISTURBANCE" OR "HAUL ROADS" AS SHOWN ON THE PLANS. 4. THE CONTRACTOR SHALL INSTALL TEMPORARY DIVERSIONS AND PUMP-AROUND OPERATIONS AT LOCATIONS INDICATED ON THE PLANS. 5. THE CONTRACTOR SHALL INSTALL TEMPORARY SILT FENCE AROUND THE STAGING AREA(S). TEMPORARY SILT FENCING WILL ALSO BE PLACED AROUND THE TEMPORARY STOCKPILE AREAS AS MATERIAL IS STOCKPILED THROUGHOUT THE CONSTRUCTION PERIOD. 6. THE CONTRACTOR SHALL INSTALL ALL TEMPORARY AND PERMANENT STREAM CROSSINGS AS SHOWN ON THE PLANS IN ACCORDANCE WITH THE APPROVED SEDIMENTATION AND EROSION CONTROL PERMIT. THE EXISTING CHANNEL AND DITCHES ON SITE WILL REMAIN OPEN DURING THE INITIAL STAGES OF CONSTRUCTION TO ALLOW FOR DRAINAGE AND TO MAINTAIN SITE ACCESSIBILITY. 7. THE CONTRACTOR SHALL CONSTRUCT ONLY THE PORTION OF CHANNEL THAT CAN BE COMPLETED AND STABILIZED WITHIN THE SAME DAY. THE CONTRACTOR SHALL APPLY TEMPORARY AND PERMANENT SEED AND MULCH TO ALL DISTURBED AREAS AT THE END OF EACH WORK DAY, WITH THE REQUIREMENT OF ESTABLISHING TEMPORARY AND PERMANENT GROUND COVER THROUGH VEGETATION ESTABLISHMENT. 8. THE CONTRACTOR SHALL CLEAR AND GRUB AN AREA ADEQUATE TO CONSTRUCT THE STREAM CHANNEL AND GRADING OPERATIONS AFTER ALL EROSION AND SEDIMENTATION MEASURES HAVE BEEN INSTALLED AND APPROVED. IN GENERAL, THE CONTRACTOR SHALL WORK FROM UPSTREAM TO DOWNSTREAM AND IN-STREAM STRUCTURES AND CHANNEL FILL MATERIAL SHALL BE INSTALLED USING A PUMP-AROUND OR FLOW DIVERSION MEASURE AS SHOWN ON THE PLANS. 9. CONTRACTOR SHALL BEGIN CHANNEL CONSTRUCTION UPSTREAM AND PROCEED IN A DOWNSTREAM DIRECTION WITH CONSTRUCTION. THE DESIGN CHANNEL SHOULD BE CONSTRUCTED OFFLINE AND/OR IN THE DRY WHENEVER POSSIBLE. THE CONTRACTOR SHALL EXCAVATE AND CONSTRUCT THE PROPOSED CHANNEL TO PROPOSED DESIGN GRADES AND SHALL NOT EXTEND EXCAVATION ACTIVITIES ANY CLOSER THAN WITHIN 10 FEET (HORIZONTALLY) OF THE TOP OF EXISTING STREAM BANKS IN ORDER TO PROTECT THE INTEGRITY OF THE EXISTING STREAM CHANNEL UNTIL ABANDONMENT. 10. THE CONTRACTOR WILL CONTINUE CONSTRUCTION BY EXCAVATING CHANNEL FILL MATERIAL. THE CONTRACTOR MAY FILL NON-JURISDICTIONAL DITCHES WHICH DO NOT CONTAIN ANY WATER DURING THE GRADING OPERATIONS. ALONG STREAM REACHES OR POND AREA, EXCAVATED MATERIAL SHOULD BE STOCKPILED IN AREAS SHOWN ON THE PLANS. IN ANY AREAS WHERE EXCAVATION DEPTHS WILL EXCEED 10 INCHES, TOPSOIL SHALL BE HARVESTED, STOCKPILED AND PLACED BACK OVER THESE AREAS TO A MINIMUM DEPTH OF 8 INCHES TO ACHIEVE DESIGN GRADES AND CREATE A SOIL BASE FOR VEGETATION PLANTING ACCORDING TO THE DESIGN PLANS AND CONSTRUCTION SPECIFICATIONS. 11. AFTER EXCAVATING AND CONSTRUCTING THE PROPOSED CHANNEL TO PROPOSED DESIGN GRADES, INSTALL IN-STREAM STRUCTURES, BIOENGINEERING MEASURES, PERMANENT AND TEMPORARY SEEDING AND ALL REQUIRED AMENDMENTS, MULCHING, VEGETATION TRANSPLANTS, TO COMPLETE CHANNEL CONSTRUCTION AND READY THE CHANNEL TO ACCEPT FLOW PER APPROVAL BY THE ENGINEER. 12. STREAM FLOW WILL BE DIVERTED BACK INTO THE CONSTRUCTED CHANNEL ONCE THE RESTORED STREAM CHANNEL AND ASSOCIATED RIPARIAN AREA HAS BEEN STABILIZED, AS DETERMINED BY THE ENGINEER AND IN COMPLIANCE WITH APPROVED PERMIT REQUIREMENTS. ONCE STREAM FLOW IS RETURNED TO A RESTORED STREAM CHANNEL REACH, THE CONTRACTOR SHALL IMMEDIATELY BEGIN PLUGGING, FILLING, AND GRADING THE ASSOCIATED ABANDONED REACH OF STREAM CHANNEL, AS INDICATED ON PLANS, MOVING IN A DOWNSTREAM DIRECTION TO ALLOW FOR POSITIVE AND ADEQUATE DRAINAGE OF THE ABANDONED CHANNEL REACH. STREAM FLOW SHALL NOT BE DIVERTED INTO ANY SECTION OF RESTORED STREAM CHANNEL PRIOR TO THE COMPLETION OF THE CONSTRUCTION OF THAT REACH OF PROPOSED CHANNEL, INCLUDING, BUT NOT LIMITED TO FINAL GRADING, STABILIZATION WITH TEMPORARY AND PERMANENT SEEDING AND ALL REQUIRED AMENDMENTS, MULCHING, VEGETATION TRANSPLANT INSTALLATION, INSTREAM STRUCTURE INSTALLATION, BIOENGINEERING INSTALLATION, AND COIR FIBER MATTING INSTALLATION. 13. THE RESTORED CHANNEL SECTIONS SHALL REMAIN OPEN AT THEIR DOWNSTREAM END TO ALLOW FOR DRAINAGE DURING RAIN EVENTS. 14. ALL GRADING ACTIVITIES ADJACENT TO THE STREAM CHANNEL AND RIPARIAN WETLAND AREAS SHALL BE COMPLETED PRIOR TO DIVERTING STREAM FLOW INTO THE RESTORED STREAM CHANNEL REACHES. ONCE CONSTRUCTION IS COMPLETED ON A REACH OF PROPOSED STREAM CHANNEL, ADDITIONAL GRADING ACTIVITIES SHALL NOT BE CONDUCTED WITHIN 10 FEET (HORIZONTALLY) OF THE NEWLY RESTORED STREAM CHANNEL BANKS. THE CONTRACTOR SHALL NOT FINALIZE GRADE OR ROUGHEN AREAS WHERE REQUIRED EXCAVATION ACTIVITIES HAVE NOT BEEN COMPLETED UNTIL DIRECTED BY THE ENGINEER. 15. ONCE CONSTRUCTION IS COMPLETE WITHIN A PUMP-AROUND WORK AREA OR CONSTRUCTION WORK LIMIT, THE CONTRACTOR SHALL APPLY TEMPORARY SEEDING TO ANY AREAS DISTURBED DURING CONSTRUCTION WITHIN HOURS. ALL SLOPES STEEPER THAN 3:1 SHALL BE STABILIZED WITH GROUND COVER AS SOON AS PRACTICABLE WITHIN 7 CALENDAR DAYS. ALL OTHER DISTURBED AREAS AND SLOPES FLATTER THAN 3:1 SHALL BE STABILIZED WITHIN 14 CALENDAR DAYS FROM THE LAST LAND-DISTURBING ACTIVITY. 16. PERMANENT GROUND COVER SHALL BE ESTABLISHED FOR ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS (WHICHEVER IS SHORTER) FOLLOWING COMPLETION OF CONSTRUCTION. ALL DISTURBED AREAS SHOULD HAVE ESTABLISHED GROUND COVER PRIOR TO DEMOBILIZATION. REMOVE ANY TEMPORARY STREAM CROSSINGS AND TEMPORARY EROSION CONTROL MEASURES. HAUL ROADS TO BE RESTORED TO A CONDITION EQUAL TO OR BETTER THAN FOUND PRIOR TO CONSTRUCTION. 17. ALL REMAINING DISTURBED AREAS SHALL BE STABILIZED BY TEMPORARY AND PERMANENT SEEDING AND MULCHING BEFORE CONSTRUCTION CLOSEOUT IS REQUESTED AND DEMOBILIZATION CAN OCCUR. ALL WASTE MATERIAL MUST BE REMOVED FROM THE PROJECT SITE. 18. THE CONTRACTOR SHALL TREAT AREAS OF INVASIVE SPECIES VEGETATION THROUGHOUT THE PROJECT AREA ACCORDING TO THE CONSTRUCTION CONTRACT DOCUMENTS, INCLUDING THE APPROVED PERMIT, PLANS AND TECHNICAL SPECIFICATIONS PRIOR TO DEMOBILIZATION. 19. THE CONTRACTOR COMPLETE ALL REMAINING PLANTING ACTIVITIES, INCLUDING TREE AND SHRUB PLANTING, REMAINING TRANSPLANT INSTALLATION, INSTALLATION OF REMAINING BIOENGINEERING MEASURES, AND LIVE STAKE INSTALLATION, ACCORDING TO THE CONSTRUCTION CONTRACT DOCUMENTS, INCLUDING THE APPROVED PERMIT, PLANS AND TECHNICAL SPECIFICATIONS. THE CONTRACTOR SHALL COMPLETE THE RE-FORESTATION (BARE-ROOT PLANTING) PHASE OF THE PROJECT AND CONDUCT REMAINING PERMANENT SEEDING IN ACCORDANCE WITH THE CONSTRUCTION CONTRACT DOCUMENTS, INCLUDING THE APPROVED PERMIT, PLANS AND TECHNICAL SPECIFICATIONS. 20. THE CONTRACTOR SHALL ENSURE THAT THE SITE IS FREE OF TRASH AND LEFTOVER CONSTRUCTION MATERIALS PRIOR TO DEMOBILIZATION FROM THE SITE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OFF-SITE REMOVAL OF ALL TRASH, EXCESS BACKFILL, AND ANY OTHER INCIDENTAL MATERIALS PRIOR TO DEMOBILIZATION OF EQUIPMENT FROM THE SITE. THE DISPOSAL AND STOCKPILE LOCATIONS SELECTED MUST BE APPROVED TO THE ENGINEER AND ANY FEES SHALL BE PAID FOR BY THE CONTRACTOR. 21. THE CONTRACTOR SHALL CONDUCT SELF-INSPECTIONS OF THE EROSION AND SEDIMENTATION CONTROL MEASURES AND COMPLETE THE FOLLOWING COMBINED SELF-INSPECTION FORM FOUND ON THE NCDEMLR WEBSITE HTTPS://FILES.NC.GOV/NCDEQ/ENERGY%20MINERAL%20AND%20LAND%20RESOURCES/ STORMWATER/NPDES%20GENERAL%20PERMITS/DEMLR-CSW-MONITORING -FORM-REV-AUGUST-8-2019.PDF . TWELVE MONTHS OF COMPLETE INSPECTION FORMS SHALL BE KEPT ON-SITE AND AVAILABLE FOR INSPECTION AT ALL TIMES. IT IS RECOMMENDED A COPY BE KEPT IN A PERMITS BOX.” (GS 113A-54.1 (E), 15A NCAC 04B.0131, NCG01 PART III SECTIONS A AND B). 22. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO CLOSE OUT THE ESC PLAN. AFTER DEMLR INFORMS THE PERMITTEE OF THE PROJECT CLOSE OUT, VIA INSPECTION REPORT, THE PERMITTEE SHALL VISIT DEQ.NC.GOV/NCG01 TO SUBMIT AN ELECTRONIC NOTICE OF TERMINATION (E-NOT). A $100 ANNUAL GENERAL PERMIT FEE WILL BE CHARGED UNTIL THE E-NOT HAS BEEN FILLED OUT. CONSTRUCTION SEQUENCE SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : B _ S W I F T I E _ G E N E R A L N O T E S . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 CE CE C E CE C E CE CE CE CE CE CE CE CE CE C E C E C E CE CE CE CE CE CE CE CE CE CE C E C E CE CE 5 6 7 10 11 12 13 17 19 18 20 9 8 PROJECT KEY MAP NORTH S700 00 SCALE IN FEET 0250500 500 3 PR O J E C T K E Y M A P & L E G E N D *SOME ITEMS SHOWN IN THIS LEGEND MAY NOT ACTUALLY BE PRESENT WITHIN THE PLAN SET* S 2 0 0 NOW OR FORMERLY PALUSTRINE GROUP, LLC PARCEL ID: 4812-20-1970 DEED BOOK: 1733 PAGE: 006 BEGIN NO CREDIT S400 STATION 10+00 BEGIN PRESERVATION S700 STATION 10+00 END PRESERVATION S600 STATION 23+93 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : C _ S W I F T I E _ P R O J E C T K E Y M A P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 LEGEND OHE 101 100 100YR FO G EXISTING UNDERGROUND FIBER OPTIC EXISTING 100 YR FLOODPLAIN EXISTING MINOR CONTOUR EXISTING MAJOR CONTOUR EXISTING PROPERTY LINE EXISTING RIGHT-OF-WAY LINE EXISTING OVERHEAD ELECTRIC EXISTING ELECTRIC PEDESTAL EXISTING GAS MAIN GAS FO ELC FO E FO EXISTING UTILITY POLE UGE EXISTING UNDERGROUND ELECTRIC EXISTING ELECTRIC MARKER EXISTING FIBER OPTIC MANHOLE EXISTING FIBER OPTIC PEDESTAL EXISTING FIBER OPTIC MARKER EXISTING GAS MAIN MARKER W EXISTING FIRE HYDRANT EXISTING WATER MAIN MARKER EXISTING ROAD/FARM PATH EXISTING WOODLINE EXISTING TREE EXISTING FENCE CONSERVATION EASEMENT CUT/FILL LIMITS TP PROPOSED TREE PROTECTION FENCE CE C/F X X PROPOSED FIELD FENCE FS PROPOSED FILTER SOCK ||||||PROPOSED SILT FENCE PROPOSED FLOODPLAIN POOL X PROPOSED GATE PROPOSED FARM PATH PROPOSED TEMPORARY STOCK PILE PROPOSED EROSION CONTROL MAT PROPOSED TEMPORARY GRAVEL CONSTRUCTION ENTRANCE PROPOSED COMPACTED FILL (PROFILE) PROPOSED EXCAVATION (PROFILE) EXISTING GROUND (PROFILE) PROPOSED BANKFULL (PROFILE) PROPOSED THALWEG (PROFILE) SS ST EXISTING SANITARY SEWER MAIN EXISTING STORM SEWER MAIN ST S EXISTING SANITARY SEWER MANHOLE EXISTING STORM SEWER MANHOLE EXISTING CENTERLINE (THALWEG) EXISTING TOP OF STREAM BANK EXISTING STREAM CHANNEL 15+00 PROPOSED BANK BOUNDARY EXISTING WETLAND AREA EXISTING WETLAND AREA (NO CREDIT) TOE WOOD GEOLIFT WITH TOE WOOD LOG RIFFLE ROOT WAD OHT UGT W EXISTING OVERHEAD TELEPHONE EXISTING UNDERGROUND TELEPHONE EXISTING WATER MAIN TEL T EXISTING TELEPHONE PEDESTAL EXISTING TELEPHONE MARKER 101 100 PROPOSED MINOR CONTOUR PROPOSED MAJOR CONTOUR PROPOSED CENTERLINE (THALWEG) PROPOSED TOP OF STREAM BANK PROPOSED STREAM CHANNEL 15+00 STREAM FLOW DIRECTION PROPOSED OUTLET CHANNEL LOD LIMITS OF DISTURBANCE CHANNEL/DITCH BLOCK CHANNEL FILL PROPOSED FLOODPLAIN DEPRESSION PROPOSED WATER QUALITY TREATMENT FEATURE RIPARIAN WETLAND RE-ESTABLISHMENT PROPOSED PERMANENT STREAM CROSSING PROPOSED TEMPORARY STREAM CROSSING PROPOSED PUMP AROUND PROPOSED TEMPORARY HAUL ROAD RIPARIAN WETLAND ENHANCEMENT PROPOSED TEMPORARY ROCK CHECK DAM CONSTRUCTED STONE RIFFLE BOULDER STEP POOL BOULDER VANE AND ROOTWAD BOULDER VANE AND J-HOOK BOULDER CROSS VANE AND ROOTWAD BOULDER CROSS VANE WITH STEP LOG STEP POOL BOULDER CASCADE WOOD SNAG LARGE WOODY DEBRIS LOG VANE, ROCK J-HOOK CONSTRUCTED BRUSHY RIFFLE PROPOSED STAGING AREA TO BE REMOVED LOG CASCADE EXISTING STORM PIPE EXISTING STORM PIPE PLUNGE POOL LOG VANE 100YR PROPOSED 100 YEAR FLOOD PLAIN 500YR EXISTING 500 YR FLOODPLAIN FP EXISTING FEMA FLOODWAY S 1 0 0 S300 S400S50 0 S 6 0 0 END PRESERVATION S700 STATION 20+01 BEGIN HWV CONSTRUCTION S100-R1 STATION 10+00 END CONSTRUCTION S100-R2 START PRESERVATION S100-R3 STATION 20+00 BEGIN HWV CONSTRUCTION S200-R1 STATION 10+00 END HWV CONSTRUCTION S200-R3 START HWV CONSTRUCTION S200-R4 STATION 30+92 END NON-JURISDICTIONAL DITCH START CONSTRUCTION S300 STATION 39+54 START PRESERVATION S600 STATION 10+00 END PRESERVATION S500 STATION 34+71 END NO CREDIT S400 STATION 16+76 END CONSTRUCTION S300 ENHANCEMENT START PRESERVATION S300 STATION 46+45 END PRESERVATION S300 STATION 59+63 WHIT E O A K S W A M P R O A D NC H I G H W A Y 3 3 W01 W02 W03 W04 W05 W06 PROPOSED BUFFER RESTORATION PLANTING EXISTING FORESTED AREA SUPPLEMENTAL PLANTING (AS NEEDED) RIPARIAN WETLAND PRESERVATION NON-RIPARIAN WETLAND RE-ESTABLISHMENT NON-RIPARIAN WETLAND ENHANCEMENT BEGIN PRESERVATION S500 STATION 10+00 END PRESERVATION S100-R3 21+54 EXISTING BRUSHLINE END HWV S200-R2 (MINIMAL CONSTRUCTION) BEGIN HWV CONSTRUCTION S200-R3 STATION 18+70 END HWV CONSTRUCTION S200-R4 START GRADING NON-JURISDICTIONAL DITCH STATION 33+02 END HWV CONSTRUCTION S200-R1 START HWV S200-R2 (MINIMAL CONSTRUCTION) STATION 12+64 END HWV CONSTRUCTION S100-R1 BEGIN CONSTRUCTION S100-R2 STATION 17+03 NOW OR FORMERLY TAR RIVER LAND CONSERVANCY, INC PARCEL ID: 4812-33-5285 DEED BOOK: 1723 PAGE: 0936 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : D _ S W I F T I E _ T Y P I C A L S E C T I O N S . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 4 TY P I C A L S E C T I O N S RIFFLE WITH BANKFULL BENCH TOP OF TERRACE POOL POOL WITH BANKFULL BENCH N.T.S N.T.SN.T.S RIFFLE Wbkf D-max Wb D-max Wbkf Wb EXISTING GROUND EXISTING GROUND PROPOSED GROUND PROPOSED GROUND N.T.S Wbkf EXISTING GROUND VARIES VARIES 3:1 3 : 1 D-max Wbkf WbPROPOSED GROUND 3 : 1 EXISTING GROUND 3:1 TOP OF TERRACE VARIES VARIES D-max WbPROPOSED GROUND 70 70 68 68 69 69 71 71 71 70 70 70 70 70 70 70 67 68 69 69 69 69 71 7171 71 71 71 72 72 72 72 9+78 10+00 11+00 12+00 13+00 14+00 1 5 + 0 0 16+0 0 17+00 50 60 70 80 90 50 60 70 80 90 9+50 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 (P O O L ) S T A = 1 0 + 1 6 . 5 7 E L E V = 6 8 . 7 6 (P O O L ) S T A = 1 0 + 3 2 . 7 4 E L E V = 6 8 . 7 4 (P O O L ) S T A = 1 0 + 5 2 . 6 8 E L E V = 6 8 . 7 1 (P O O L ) S T A = 1 1 + 4 1 . 3 1 E L E V = 6 8 . 5 4 (P O O L ) S T A = 1 1 + 7 9 . 1 6 E L E V = 6 8 . 4 6 (P O O L ) S T A = 1 2 + 1 5 . 3 2 E L E V = 6 8 . 3 9 (P O O L ) S T A = 1 2 + 4 8 . 4 6 E L E V = 6 8 . 3 2 (P O O L ) S T A = 1 2 + 7 3 . 0 4 E L E V = 6 8 . 2 7 (P O O L ) S T A = 1 2 + 9 4 . 5 7 E L E V = 6 8 . 2 2 (P O O L ) S T A = 1 3 + 1 6 . 5 1 E L E V = 6 8 . 1 8 (P O O L ) S T A = 1 3 + 4 7 . 2 7 E L E V = 6 8 . 1 1 (P O O L ) S T A = 1 3 + 6 9 . 3 3 E L E V = 6 8 . 0 7 (P O O L ) S T A = 1 3 + 8 8 . 2 7 E L E V = 6 8 . 0 3 (P O O L ) S T A = 1 4 + 1 0 . 1 7 E L E V = 6 7 . 9 8 (P O O L ) S T A = 1 4 + 3 1 . 0 8 E L E V = 6 7 . 9 4 (P O O L ) S T A = 1 4 + 5 3 . 7 3 E L E V = 6 7 . 8 9 (P O O L ) S T A = 1 4 + 8 8 . 7 8 E L E V = 6 7 . 8 2 (P O O L ) S T A = 1 5 + 2 0 . 7 6 E L E V = 6 7 . 7 6 (P O O L ) S T A = 1 5 + 6 0 . 4 8 E L E V = 6 7 . 6 7 (P O O L ) S T A = 1 5 + 8 6 . 4 4 E L E V = 6 7 . 5 9 (P O O L ) S T A = 1 6 + 0 6 . 7 4 E L E V = 6 7 . 3 7 (P O O L ) S T A = 1 6 + 3 7 . 6 8 E L E V = 6 7 . 0 3 (P O O L ) S T A = 1 6 + 8 7 . 7 2 E L E V = 6 5 . 9 3 (T O R ) S T A = 1 0 + 1 4 . 1 3 E L E V = 6 8 . 9 4 (T O R ) S T A = 1 0 + 3 0 . 3 4 E L E V = 6 8 . 9 2 (T O R ) S T A = 1 0 + 5 0 . 6 8 E L E V = 6 8 . 8 9 (T O R ) S T A = 1 0 + 8 4 . 9 2 E L E V = 6 8 . 8 3 (T O R ) S T A = 1 1 + 3 7 . 2 0 E L E V = 6 8 . 7 2 (T O R ) S T A = 1 1 + 7 4 . 3 6 E L E V = 6 8 . 6 4 (T O R ) S T A = 1 2 + 0 9 . 6 8 E L E V = 6 8 . 5 6 (T O R ) S T A = 1 2 + 4 4 . 2 6 E L E V = 6 8 . 4 9 (T O R ) S T A = 1 2 + 6 8 . 7 1 E L E V = 6 8 . 4 4 (T O R ) S T A = 1 2 + 9 0 . 4 6 E L E V = 6 8 . 4 0 (T O R ) S T A = 1 3 + 1 1 . 9 3 E L E V = 6 8 . 3 5 (T O R ) S T A = 1 3 + 4 3 . 9 1 E L E V = 6 8 . 2 9 (T O R ) S T A = 1 3 + 6 5 . 1 7 E L E V = 6 8 . 2 4 (T O R ) S T A = 1 3 + 8 4 . 2 4 E L E V = 6 8 . 2 0 (T O R ) S T A = 1 4 + 0 6 . 8 3 E L E V = 6 8 . 1 6 (T O R ) S T A = 1 4 + 2 7 . 8 5 E L E V = 6 8 . 1 2 (T O R ) S T A = 1 4 + 4 9 . 3 1 E L E V = 6 8 . 0 7 (T O R ) S T A = 1 4 + 8 4 . 7 7 E L E V = 6 8 . 0 0 (T O R ) S T A = 1 5 + 1 8 . 1 7 E L E V = 6 7 . 9 3 (T O R ) S T A = 1 5 + 5 5 . 4 2 E L E V = 6 7 . 8 5 (T O R ) S T A = 1 5 + 8 2 . 7 3 E L E V = 6 7 . 7 3 (T O R ) S T A = 1 6 + 0 2 . 9 8 E L E V = 6 7 . 5 1 (T O R ) S T A = 1 6 + 3 4 . 0 0 E L E V = 6 7 . 1 7 (T O R ) S T A = 1 6 + 8 2 . 4 1 E L E V = 6 6 . 6 1 (H O R ) S T A = 1 0 + 1 9 . 0 1 E L E V = 6 8 . 9 4 (H O R ) S T A = 1 0 + 3 5 . 1 3 E L E V = 6 8 . 9 2 (H O R ) S T A = 1 0 + 5 4 . 6 8 E L E V = 6 8 . 8 9 (H O R ) S T A = 1 0 + 9 1 . 0 2 E L E V = 6 8 . 8 3 (H O R ) S T A = 1 1 + 4 5 . 4 3 E L E V = 6 8 . 7 2 (H O R ) S T A = 1 1 + 8 3 . 9 5 E L E V = 6 8 . 6 4 (H O R ) S T A = 1 2 + 2 0 . 9 6 E L E V = 6 8 . 5 6 (H O R ) S T A = 1 2 + 5 2 . 6 5 E L E V = 6 8 . 4 9 (H O R ) S T A = 1 2 + 7 7 . 3 7 E L E V = 6 8 . 4 4 (H O R ) S T A = 1 2 + 9 8 . 6 7 E L E V = 6 8 . 4 0 (H O R ) S T A = 1 3 + 2 1 . 0 9 E L E V = 6 8 . 3 5 (H O R ) S T A = 1 3 + 5 0 . 6 3 E L E V = 6 8 . 2 9 (H O R ) S T A = 1 3 + 7 3 . 4 9 E L E V = 6 8 . 2 4 (H O R ) S T A = 1 3 + 9 2 . 3 1 E L E V = 6 8 . 2 0 (H O R ) S T A = 1 4 + 1 3 . 5 0 E L E V = 6 8 . 1 6 (H O R ) S T A = 1 4 + 3 4 . 3 1 E L E V = 6 8 . 1 2 (H O R ) S T A = 1 4 + 5 8 . 1 5 E L E V = 6 8 . 0 7 (H O R ) S T A = 1 4 + 9 2 . 7 8 E L E V = 6 8 . 0 0 (H O R ) S T A = 1 5 + 2 3 . 3 6 E L E V = 6 7 . 9 3 (H O R ) S T A = 1 5 + 6 5 . 5 3 E L E V = 6 7 . 8 5 (H O R ) S T A = 1 5 + 9 0 . 1 5 E L E V = 6 7 . 7 3 (H O R ) S T A = 1 6 + 1 0 . 4 9 E L E V = 6 7 . 5 1 (H O R ) S T A = 1 6 + 4 1 . 3 7 E L E V = 6 7 . 1 7 (H O R ) S T A = 1 6 + 9 3 . 0 3 E L E V = 6 6 . 6 1 -0.20%-0.21%-0.19%-0.24%-0.28%-0.30%-0.28%-0.32%-0.34%-0.35%-0.27%-0.33%-0.36%-0.30%-0.30%-0.33%-0.27%-0.25%-0.27%-0.66%-1.73%-1.43%-1.38%-0.84% -0.21% (P O O L ) S T A = 1 0 + 8 7 . 9 7 E L E V = 6 8 . 6 5 -0.15%-0.21% -1.09% SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 00 SCALE IN FEET 0400800 800 KEYMAP NORTH 00 SCALE IN FEET 01530 30 S100 PLAN S100 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 S100 MA T C H L I N E - S T A 1 6 + 8 4 SE E S H E E T 6 BEGIN HWV CONSTRUCTION S100-R1 STATION 9+78 5 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 PL A N A N D P R O F I L E REMOVE EXISTING 24" RCP REMOVE EXISTING 24" RCP AND FARM PATH. FARM PATH TO BE RELOCATED OUTSIDE OF CONSERVATION EASEMENT. END HWV CONSTRUCTION S100-R1 BEGIN CONSTRUCTION S100-R2 STATION 17+03 D I T C H 2 5 0 0 Y R 50 0 Y R 500 Y R 50 0 Y R 5 0 0 Y R 500 Y R 5 0 0 Y R 500YR 5 0 0 Y R 50 0 Y R 50 0 Y R 50 0 Y R 1 0 0 Y R 1 0 0 Y R 10 0 Y R 100YR 100 Y R 10 0 Y R 100YR 100YR 100YR 100Y R 100 Y R 10 0 Y R 100YR 100YR 100 Y R 100YR 10 0 Y R CE CE CE CE CE CE CE 65 6 5 63 63 64 64 66 66 67 67 68 68 69 17 + 0 0 18+ 0 0 1 9 + 0 0 2 0 + 0 0 21 + 0 0 2 1 + 5 4 40 50 60 70 80 40 50 60 70 80 16+50 17+00 18+00 19+00 20+00 21+00 22+00 23+00 24+00 (P O O L ) S T A = 1 6 + 8 7 . 7 2 E L E V = 6 5 . 9 3 (P O O L ) S T A = 1 7 + 1 1 . 1 2 E L E V = 6 5 . 6 8 (P O O L ) S T A = 1 7 + 3 4 . 9 1 E L E V = 6 5 . 4 2 (P O O L ) S T A = 1 7 + 5 5 . 7 4 E L E V = 6 5 . 1 9 (P O O L ) S T A = 1 7 + 7 9 . 5 0 E L E V = 6 4 . 7 9 (P O O L ) S T A = 1 8 + 2 8 . 1 3 E L E V = 6 3 . 9 6 (P O O L ) S T A = 1 8 + 6 9 . 0 4 E L E V = 6 3 . 1 6 (P O O L ) S T A = 1 9 + 2 9 . 6 4 E L E V = 6 2 . 0 3 (P O O L ) S T A = 1 9 + 5 1 . 4 4 E L E V = 6 1 . 5 6 (P O O L ) S T A = 1 9 + 7 8 . 6 6 E L E V = 6 0 . 9 7 (H O R ) S T A = 1 6 + 8 2 . 4 1 E L E V = 6 6 . 6 1 (H O R ) S T A = 1 7 + 0 3 . 1 1 E L E V = 6 6 . 5 2 (H O R ) S T A = 1 7 + 2 7 . 2 0 E L E V = 6 6 . 2 7 (H O R ) S T A = 1 7 + 4 9 . 9 3 E L E V = 6 6 . 0 5 (H O R ) S T A = 1 7 + 7 4 . 0 0 E L E V = 6 5 . 6 3 (H O R ) S T A = 1 7 + 9 5 . 9 4 E L E V = 6 5 . 1 1 (H O R ) S T A = 1 8 + 2 3 . 5 6 E L E V = 6 4 . 7 6 (H O R ) S T A = 1 8 + 4 0 . 9 4 E L E V = 6 4 . 3 4 (H O R ) S T A = 1 8 + 6 3 . 3 2 E L E V = 6 3 . 9 9 (H O R ) S T A = 1 8 + 8 2 . 1 1 E L E V = 6 3 . 6 0 (H O R ) S T A = 1 9 + 0 1 . 8 3 E L E V = 6 3 . 2 4 (H O R ) S T A = 1 9 + 2 3 . 7 7 E L E V = 6 2 . 8 3 (H O R ) S T A = 1 9 + 4 6 . 1 7 E L E V = 6 2 . 3 8 (H O R ) S T A = 1 9 + 7 3 . 4 5 E L E V = 6 1 . 7 9 (H O R ) S T A = 1 6 + 9 3 . 0 3 E L E V = 6 6 . 6 1 (H O R ) S T A = 1 7 + 1 9 . 1 3 E L E V = 6 6 . 3 2 (H O R ) S T A = 1 7 + 4 2 . 6 2 E L E V = 6 6 . 0 7 (H O R ) S T A = 1 7 + 6 1 . 5 6 E L E V = 6 5 . 8 5 (H O R ) S T A = 1 7 + 8 5 . 0 0 E L E V = 6 5 . 4 3 (H O R ) S T A = 1 8 + 1 3 . 2 9 E L E V = 6 4 . 9 1 (H O R ) S T A = 1 8 + 3 2 . 7 1 E L E V = 6 4 . 5 6 (H O R ) S T A = 1 8 + 5 5 . 4 7 E L E V = 6 4 . 1 4 (H O R ) S T A = 1 8 + 7 4 . 7 6 E L E V = 6 3 . 7 9 (H O R ) S T A = 1 8 + 9 6 . 3 1 E L E V = 6 3 . 4 0 (H O R ) S T A = 1 9 + 1 5 . 9 8 E L E V = 6 3 . 0 4 (H O R ) S T A = 1 9 + 3 5 . 5 2 E L E V = 6 2 . 6 3 (H O R ) S T A = 1 9 + 5 6 . 7 0 E L E V = 6 2 . 1 8 (H O R ) S T A = 1 9 + 8 3 . 8 6 E L E V = 6 1 . 5 9 -1.38%-0.84%-0.70%-0.17%-1.82%-2.88%-1.50%-2.60%-1.93%-2.62%-2.87% -2.43%-2.32% -2.66% -1.82% -1.09% (P O O L ) S T A = 1 9 + 1 0 . 0 0 E L E V = 6 2 . 4 2 -1.09% -1.82% -2.17% -2.32% (P O O L ) S T A = 1 8 + 9 0 . 0 0 E L E V = 6 2 . 7 8 (P O O L ) S T A = 1 8 + 5 0 . 0 0 E L E V = 6 3 . 5 1 (P O O L ) S T A = 1 8 + 0 8 . 0 0 E L E V = 6 4 . 2 6 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP M A T C H L I N E - S T A 1 6 + 8 4 S E E S H E E T 5 S100 END STREAM PRESERVATION S100-R3 STATION 21+54 S100 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S100 PLAN 6 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END CONSTRUCTION S100-R2 BEGIN STREAM PRESERVATION S100-R3 STATION 20+00 END HWV CONSTRUCTION S100-R1 BEGIN CONSTRUCTION S100-R2 STATION 17+03 75 75 80 80 80 80 7474 7 6 7 676 78 78 79 79 81 C E C E 80 78 78 78 79 79 10+00 11+00 12+00 13+00 14+00 15+0 0 16+00 17+00 77 76 75 60 70 80 90 100 60 70 80 90 100 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 (P O O L ) S T A = 1 0 + 2 3 . 3 7 E L E V = 7 7 . 3 7 (P O O L ) S T A = 1 0 + 5 3 . 3 7 E L E V = 7 7 . 3 3 (P O O L ) S T A = 1 0 + 9 5 . 0 4 E L E V = 7 7 . 2 7 (P O O L ) S T A = 1 1 + 6 3 . 2 5 E L E V = 7 7 . 1 8 (P O O L ) S T A = 1 2 + 0 6 . 2 5 E L E V = 7 7 . 1 3 (P O O L ) S T A = 1 2 + 8 2 . 6 1 E L E V = 7 6 . 8 1 (P O O L ) S T A = 1 3 + 2 0 . 0 3 E L E V = 7 6 . 5 5 (T O R ) S T A = 1 0 + 2 0 . 2 9 E L E V = 7 7 . 6 1 (T O R ) S T A = 1 0 + 5 0 . 0 6 E L E V = 7 7 . 5 7 (T O R ) S T A = 1 0 + 9 0 . 8 6 E L E V = 7 7 . 5 2 (T O R ) S T A = 1 1 + 5 8 . 6 1 E L E V = 7 7 . 4 3 (T O R ) S T A = 1 2 + 0 2 . 6 3 E L E V = 7 7 . 3 7 (T O R ) S T A = 1 2 + 4 2 . 7 5 E L E V = 7 7 . 2 4 (T O R ) S T A = 1 2 + 7 8 . 6 0 E L E V = 7 7 . 0 3 (T O R ) S T A = 1 3 + 1 6 . 9 6 E L E V = 7 6 . 7 8 (H O R ) S T A = 1 0 + 2 6 . 4 6 E L E V = 7 7 . 6 1 (H O R ) S T A = 1 0 + 5 6 . 6 8 E L E V = 7 7 . 5 7 (H O R ) S T A = 1 0 + 9 9 . 2 3 E L E V = 7 7 . 5 2 (H O R ) S T A = 1 1 + 6 7 . 8 8 E L E V = 7 7 . 4 3 (H O R ) S T A = 1 2 + 0 9 . 8 6 E L E V = 7 7 . 3 7 (H O R ) S T A = 1 2 + 5 7 . 0 9 E L E V = 7 7 . 2 4 (H O R ) S T A = 1 2 + 8 6 . 6 1 E L E V = 7 7 . 0 3 (H O R ) S T A = 1 3 + 2 3 . 0 9 E L E V = 7 6 . 7 8 BE G I N C O N S T R U C T I O N S T A = 1 0 + 0 0 . 0 0 E L E V = 7 7 . 6 5 -0.82%-0.83%-0.95%-0.69%-0.41%-0.16%-0.15%-0.16%-0.17%-0.17% (P O O L ) S T A = 1 2 + 5 4 . 0 0 E L E V = 7 7 . 0 1 -0.13%-0.69% PV I S T A = 1 4 + 4 6 . 4 7 E L E V = 7 5 . 4 6 PV I S T A = 1 6 + 5 0 . 0 0 E L E V = 7 4 . 4 4 -1.13% SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP MA T C H L I N E - S T A 1 7 + 0 0 SE E S H E E T 8 S200 BEGIN HWV CONSTRUCTION S200-R1 STATION 10+00 S200 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S200 PLAN 7 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END HWV CONSTRUCTION S200-R1 BEGIN HWV S200-R2 (MINIMAL CONSTRUCTION) STATION 12+64 REMOVE SPOIL PILES AND PRIVET ALONG DITCHES. USE SUITABLE MATERIAL FOR CHANNEL PLUGS. 757 5 75 7373 7 4 7 4 74 74 74 74 74 1 7 + 0 0 1 8 + 0 0 19+00 20+00 21+00 22+00 23+00 24+00 50 60 70 80 90 50 60 70 80 90 17+00 18+00 19+00 20+00 21+00 22+00 23+00 24+00 PV I S T A = 1 8 + 5 0 . 0 0 E L E V = 7 3 . 4 4 PV I S T A = 2 0 + 5 0 . 0 0 E L E V = 7 2 . 4 6 PV I S T A = 2 2 + 5 0 . 0 0 E L E V = 7 1 . 9 2 -0.50% -0.27% SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP MATC H L I N E - S T A 1 7 + 0 0 SEE S H E E T 7 S200 S200 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S200 PLAN M A T C H L I N E - S T A 2 4 + 0 0 S E E S H E E T 9 8 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END HWV S200-R2 (MINIMAL CONSTRUCTION) BEGIN HWV CONSTRUCTION S200-R3 STATION 18+70 REMOVE SPOIL PILES AND PRIVET ALONG DITCHES. USE SUITABLE MATERIAL FOR CHANNEL PLUGS AND FILL AS SHOWN. REMOVE PRIVET WITHIN PROPOSED WETLAND AREAS. 7 1 717171 71 24+00 25+00 26+00 27+00 28+00 29+00 30+00 31+00 50 60 70 80 90 50 60 70 80 90 24+00 25+00 26+00 27+00 28+00 29+00 30+00 31+00 (T O R ) S T A = 3 0 + 9 1 . 5 7 E L E V = 7 0 . 2 9 -0.30% PV I S T A = 2 4 + 5 0 . 0 0 E L E V = 7 1 . 3 8 PV I S T A = 2 6 + 5 0 . 0 0 E L E V = 7 0 . 8 4 PV I S T A = 2 8 + 5 0 . 0 0 E L E V = 7 0 . 6 0 PV I S T A = 3 0 + 5 0 . 0 0 E L E V = 7 0 . 3 8 -0.08%-0.11% SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP MA T C H L I N E - S T A 3 1 + 0 0 SE E S H E E T 1 0 S200 S200 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S200 PLAN MA T C H L I N E - S T A 2 4 + 0 0 SE E S H E E T 8 9 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END HWV CONSTRUCTION S200-R3 BEGIN HWV CONSTRUCTION S200-R4 STATION 30+92 REMOVE PRIVET WITHIN PROPOSED WETLAND AREAS. DO NOT DISTURB EXISTING TREE REMOVE SPOIL PILES AND PRIVET ALONG DITCHES. USE SUITABLE MATERIAL FOR CHANNEL PLUGS AND FILL AS SHOWN. 70 68 686868 686868686868 69 696 9 6 9 6 96969 70 70 70 7070 70 70 70 70 68 68 6868 68 68 68 68 69 69 69 69 69 69 69 69 69 71 71 71 7171 71 71 71 71 72 72 72 72 73 73 32+00 33+00 34+00 35+00 36+00 37+00 38+00 50 60 70 80 90 50 60 70 80 90 31+00 32+00 33+00 34+00 35+00 36+00 37+00 38+00 (P O O L ) S T A = 3 2 + 9 9 . 0 0 E L E V = 6 6 . 8 7 (P O O L ) S T A = 3 2 + 6 4 . 0 0 E L E V = 6 7 . 5 5 (P O O L ) S T A = 3 2 + 4 2 . 0 0 E L E V = 6 7 . 9 8 (P O O L ) S T A = 3 2 + 1 3 . 0 0 E L E V = 6 8 . 4 8 (P O O L ) S T A = 3 1 + 8 7 . 0 0 E L E V = 6 8 . 9 2 (P O O L ) S T A = 3 1 + 5 5 . 0 0 E L E V = 6 9 . 4 5 (P O O L ) S T A = 3 1 + 0 3 . 0 0 E L E V = 6 9 . 7 9 -1.94% -1.67% -2.24% (T O R ) S T A = 3 1 + 3 9 . 5 5 E L E V = 6 9 . 9 2 (T O R ) S T A = 3 1 + 7 9 . 1 7 E L E V = 6 9 . 3 8 (T O R ) S T A = 3 2 + 0 4 . 3 3 E L E V = 6 8 . 9 6 (T O R ) S T A = 3 2 + 3 0 . 1 2 E L E V = 6 8 . 4 4 (T O R ) S T A = 3 2 + 5 5 . 7 6 E L E V = 6 8 . 0 3 (T O R ) S T A = 3 2 + 8 4 . 2 9 E L E V = 6 7 . 3 3 (H O R ) S T A = 3 1 + 0 5 . 8 5 E L E V = 7 0 . 0 9 (H O R ) S T A = 3 1 + 5 7 . 9 1 E L E V = 6 9 . 7 2 (H O R ) S T A = 3 1 + 8 9 . 8 5 E L E V = 6 9 . 1 8 (H O R ) S T A = 3 2 + 1 5 . 3 2 E L E V = 6 8 . 7 6 (H O R ) S T A = 3 2 + 4 4 . 8 3 E L E V = 6 8 . 2 4 (H O R ) S T A = 3 2 + 6 6 . 1 3 E L E V = 6 7 . 8 3 (H O R ) S T A = 3 3 + 0 1 . 8 6 E L E V = 6 7 . 1 3 -2.72% -1.95%-2.17%-1.56%-1.57%-0.50% SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP MA T C H L I N E - S T A 3 8 + 5 0 SE E S H E E T 1 1 S200/S300 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S200/S300 PLAN MATC H L I N E - S T A 3 1 + 0 0 SEE S H E E T 9 S20 0 10 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E REMOVE EXISTING 18" CPP REMOVE EXISTING 18" CPP AND FARM PATH END HWV CONSTRUCTION S200-R4 BEGIN GRADING NON-JURISDICTIONAL DITCH STATION 33+02 70 70 68 69 71 39+00 40+ 0 0 41+0 0 42+00 43+00 44+00 45+00 40 50 60 70 80 40 50 60 70 80 38+00 39+00 40+00 41+00 42+00 43+00 44+00 45+00 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP MA T C H L I N E - S T A 4 5 + 5 0 SE E S H E E T 1 2 S300 S300 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S300 PLAN M A T C H L I N E - S T A 3 8 + 5 0 S E E S H E E T 1 0 11 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END GRADING NON-JURISDICTIONAL DITCH BEGIN CONSTRUCTION S300 STATION 39+54 REMOVE EXISTING FENCE ALONG RIGHT BANK REMOVE EXISTING SPOIL PILES PER DIRECTION OF ENGINEER. DO NOT DISTURB EXISTING VEGETATION UNLESS OTHERWISE NOTED OR DIRECTED BY THE ENGINEER. GRADE BANK AT 3:1 SLOPE. SEED, MULCH, MAT, AND LIVE STAKE. REMOVE PRIVET REMOVE EXISTING FARM PATH FROM THE CONSERVATION EASEMENT REMOVE DEAD TREE. GRADE BANK AT 2:1 SLOPE. SEED, MULCH, MAT, AND LIVE STAKE. GRADE BANK AT 2:1 SLOPE. SEED, MULCH, MAT, AND LIVE STAKE. 500Y R 500YR 500 Y R 500Y R 10 0 Y R 100Y R 6 5 62 63 63 63 64 66 67 68 6969 69 CE CE CE 45+00 46+00 47+ 0 0 48+00 49+00 50+00 51 + 0 0 52+00 53+00 40 50 60 70 80 40 50 60 70 80 45+00 46+00 47+00 48+00 49+00 50+00 51+00 52+00 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP M A T C H L I N E - S T A 5 2 + 5 0 S E E S H E E T 1 3 S300 S300 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S300 PLAN M A T C H L I N E - S T A 4 5 + 5 0 S E E S H E E T 1 1 12 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END CONSTRUCTION S300 ENHANCEMENT BEGIN CONSTRUCTION S300 PRESERVATION STATION 46+45 GRADE BANK AT 2:1 SLOPE. SEED, MULCH, MAT, AND LIVE STAKE.GRADE BANK AT 2:1 SLOPE. SEED, MULCH, MAT, AND LIVE STAKE. REMOVE EXISTING BRIDGE. GRADE BANK AT 2:1 SLOPE. SEED, MULCH, MAT, AND LIVE STAKE. REMOVE EXISTING STRUCTURE AND FARM PATH FROM THE CONSERVATION EASEMENT 500 Y R 500YR 500YR 500YR500YR500YR 500YR 500 Y R 500YR 500YR500Y R 500 Y R 50 0 Y R 500YR 50 0 Y R 500YR 100YR 100YR 1 0 0 Y R 100YR 100YR1 0 0 Y R 100YR 1 0 0 Y R 100YR 100YR 1 0 0 Y R 10 0 Y R 100YR 100Y R 100YR 100YR 100 Y R 61 61 61 6 16161 61 6 1 616 1 61 6 161 61 62 63 63 C E 52 + 0 0 53+0 0 54+00 55+00 56+00 57+00 58+00 5 9 + 0 0 5 9 + 6 3 40 50 60 70 80 40 50 60 70 80 52+00 53+00 54+00 55+00 56+00 57+00 58+00 59+00 59+38 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : E - S W I F T I E - P P . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 KEYMAP M A T C H L I N E - S T A 5 2 + 5 0 S E E S H E E T 1 2 S300 S300 PROFILE 00 HORIZONTAL SCALE IN FEET 01530 30 00 VERTICAL SCALE IN FEET 02.55 5 NORTH 00 SCALE IN FEET 01530 30 S300 PLAN 13 MITIGATION BOUNDARY CE CE C E CE CE CE C E C E CE CE S 1 0 0 S 2 0 0 S300 STA 10+38.99DESIGN SPEED = 60 mi/h 5 6 7 8 9 10 11 12 13 00 SCALE IN FEET 0400800 800 PL A N A N D P R O F I L E END CONSTRUCTION S300 PRESERVATION STATION 59+63 NOW OR FORMERLY PALUSTRINE GROUP, LLC PIN: 4812-20-1970 DB 1733 PG 0006 NOW OR FORMERLY TAR RIVER LAND CONSERVANCY PIN: 4812-33-5285 DB 1723 PG 0936 8 0 71 717 171 71 78 7 8 7 8 7 9 7 9 1 0 + 0 0 1 1 + 0 0 1 2 + 0 0 1 3 + 0 0 14 + 0 0 15 + 0 0 16 + 0 0 1 7 + 0 0 1 8 + 0 0 19+00 20+00 21+00 22+00 23+00 24+00 25+00 26+00 27+00 28+00 77 76 75 W01 W01 W02 W02 C E CE CE CE CE CE CE CE CE CE CE CE CE CE C E C E C E C E C E CE CE CE CE CE CE C E C E C E C E C E C E C E W02 W02W01 NORTH S200 14 WE T L A N D G R A D I N G P L A N 00 HORIZONTAL SCALE IN FEET 03060 60 MA T C H L I N E S E E S H E E T 1 5 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : F - S W I F T I E _ W E T L A N D G R A D I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 NOW OR FORMERLY PALUSTRINE GROUP, LLC PIN: 4812-20-1970 DB 1733 PG 0006 7068686 868 6 8 6 868686868 69 6 96969696 9 6 9 71 717 171 71 70 7 0 70 70 6868 6 8 68 69 6 9 69 69 7 1 7 1 71 71 26+00 27+00 28+00 29+00 30+00 31+0 0 3 2 + 0 0 33 + 0 0 34 + 0 0 W02 W02 W03 W03 C E C E C E C E C E C E C E C E C E C E C E CE CE CE W03 W02 W02 NORTH 15 WE T L A N D G R A D I N G P L A N 00 HORIZONTAL SCALE IN FEET 03060 60 MA T C H L I N E S E E S H E E T 1 4 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : F - S W I F T I E _ W E T L A N D G R A D I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 S200 PLANTING NOTES 1. THE FOLLOWING TABLES LIST THE PROPOSED VEGETATION SPECIES SELECTIONFOR THE PROJECT REVEGETATION. THE TOTAL PLANTING AREA IS APPROXIMATELY109.1 AC (79.6 ACRES @ 680 STEMS/ACRE ARE WITHIN THE CREDITABLE 200 FTBUFFER OF THE STREAMS AND THE WETLAND AREAS. THE 29.5 ACRES OUTSIDE OFTHE CREDITABLE BUFFER WILL BE PLANTED @ 302 STEMS PER ACRE. THESE AREASWILL VARY BASED ON SITE CONDITIONS AND AREAS DISTURBED DURINGCONSTRUCTION. 2. FINAL VEGETATION SPECIES SELECTION MAY CHANGE DUE TO REFINEMENT ORSPECIES AVAILABILITY AT THE TIME OF PLANTING. SPECIES SUBSTITUTIONS WILL BECOORDINATED BETWEEN ENGINEER AND PLANTING CONTRACTOR PRIOR TO THEPROCUREMENT OF PLANT/SEED STOCK. 3. IN GENERAL, WOODY SPECIES SHALL BE PLANTED AT A DENSITY OF 680 STEMS PERACRE AND A MINIMUM OF 50 FEET FROM THE TOP OF RESTORED STREAM BANKSAND TO THE REVEGETATION LIMITS. EXACT PLACEMENT OF THE SPECIES WILL BEDETERMINED BY THE CONTRACTOR’S VEGETATION SPECIALIST PRIOR TO SITEPLANTING AND BASED ON THE WETNESS CONDITIONS OF PLANTING LOCATIONS. 4. SUPPLEMENTAL PLANTING ACTIVITIES SHALL BE PERFORMED WITHIN THECONSERVATION EASEMENT IN ANY DISTURBED AREAS USING NATIVE SPECIESVEGETATION DESCRIBED IN RIPARIAN BUFFER PLANT MIXTURE. 5. ANY INVASIVE SPECIES VEGETATION, SUCH AS CHINESE PRIVET (LIGUSTRUMSINENSE) AND MULTIFLORA ROSE (ROSA MULTIFLORA) WILL BE INITIALLY TREATEDAS DESCRIBED IN THE CONSTRUCTION SPECIFICATIONS PRIOR TO PLANTINGACTIVITIES TO ALLOW NATIVE PLANTS TO BECOME ESTABLISHED WITHIN THECONSERVATION EASEMENT. 6. LARGER NATIVE TREE SPECIES TO BE PRESERVED WILL BE FLAGGED BY THEENGINEER PRIOR TO CONSTRUCTION ACTIVITIES. ANY TREES HARVESTED FORWOODY MATERIAL WILL BE UTILIZED TO PROVIDE BED AND BANK STABILIZATION,COVER AND/OR NESTING HABITAT. 7. ALL DISTURBED AREAS WILL BE STABILIZED USING MULCHING AND SEEDING ASDEFINED IN THE CONSTRUCTION SPECIFICATIONS AND THE APPROVEDSEDIMENTATION AND EROSION CONTROL PLANS. 8. ALL AREAS SHOWN AS BUFFER RESTORATION PLANTING SHALL BE RIPPED ORDISKED TO PREPARE GROUND FOR HERBACEOUS AND WOODY VEGETATION. PROPOSED BUFFERRESTORATION PLANTING(680 STEMS/ACRE) PLANTING LEGEND 16 PL A N T I N G T A B L E S A N D N O T E S PLANTING SCHEDULE PROPOSED BUFFERRESTORATION PLANTING(302 STEMS/ACRE) SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : G - S W I F T I E _ P L A N T I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 EXISTING FORESTED AREASUPPLEMENTAL PLANTING(AS NEEDED) 9 + 7 8 1 0 + 0 0 1 1 + 0 0 1 2 + 0 0 1 3 + 0 0 1 4 + 0 0 15+0 0 NOW OR FORMERLY TAR RIVER LAND CONSERVANCY PIN: 4812-33-5285 DB 1723 PG 0936 NOW OR FORMERLY PALUSTRINE GROUP, LLC PIN: 4812-20-1970 DB 1733 PG 0006 5 0 0 Y R 500Y R 500YR 50 0 Y R 500YR 10 0 Y R 100Y R C E C E C E C E CE CE CE CE CE CE CE CE CE CE CE CE C E C E C E C E CE CE CE C E C E C E CE CE CE CE NORTH S 1 0 0 17 PL A N T I N G P L A N 00 HORIZONTAL SCALE IN FEET 04080 80 MA T C H L I N E S E E S H E E T 1 8 MATCH LINE SEE SHEET 19 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : G - S W I F T I E _ P L A N T I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 10 + 0 0 11 + 0 0 12 + 0 0 13 + 0 0 14+ 0 0 15+ 0 0 16+ 0 0 17 + 0 0 18 + 0 0 19+ 0 0 20 + 0 0 21+ 0 0 22 + 0 0 23+00 2 4 + 0 0 25+00 26 + 0 0 27 + 0 0 28+ 0 0 2 9 + 0 0 3 0 + 0 0 3 1 + 0 0 32 + 0 0 77 7 6 7 5 NOW OR FORMERLY PALUSTRINE GROUP, LLC PIN: 4812-20-1970 DB 1733 PG 0006 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE C E C E C E CE CE CE CE CE CE C E C E CE CE CE NORTH S 2 0 0 18 PL A N T I N G P L A N 00 HORIZONTAL SCALE IN FEET 04080 80 MATCH LINE SEE SHEET 20 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM. IC HER SPREL I M I N A R Y PLA N S NO T F O R CON S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : G - S W I F T I E _ P L A N T I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . DE S C R I P T I O N DA T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 MA T C H L I N E S E E S H E E T 1 7 16 + 0 0 1 7 + 0 0 18 + 0 0 19+00 20+0 0 2 1 + 0 0 21+5 4 47+00 48+00 49+0 0 50+00 51+00 52+00 53+0 0 54+ 0 0 55 + 0 0 NOW OR FORMERLY PALUSTRINE GROUP, LLC PIN: 4812-20-1970 DB 1733 PG 0006 50 0 Y R 5 0 0 Y R 500 Y R 50 0 Y R 5 0 0 Y R 500 Y R 50 0 Y R 5 0 0 Y R 5 0 0 Y R 50 0 Y R 5 0 0 Y R 500YR 5 0 0 Y R 5 0 0 Y R 5 0 0 Y R 5 0 0 Y R 50 0 Y R 500YR 50 0 Y R 500Y R 500YR 500YR 5 0 0 Y R 50 0 Y R 500 Y R 5 0 0 Y R 50 0 Y R 5 0 0 Y R 50 0 Y R 5 0 0 Y R 500YR 500YR500Y R500YR 5 0 0 Y R 10 0 Y R 100 Y R 100Y R 10 0 Y R 1 0 0 Y R 10 0 Y R 100YR 10 0 Y R 10 0 Y R 1 0 0 Y R 100 Y R 100YR 100YR 1 0 0 Y R 100YR 10 0 Y R 1 0 0 Y R 1 0 0 Y R 1 0 0 Y R 1 0 0 Y R 10 0 Y R 100YR 100YR 1 0 0 Y R 100YR 10 0 Y R 100Y R 100YR 100Y R 1 0 0 Y R 1 0 0 Y R 1 0 0 Y R 1 0 0 Y R 100Y R 100 Y R 100YR 1 0 0 Y R 100YR 100 Y R 100YR 100YR 10 0 Y R CE CE CE CE CE C E C E CE CE C E CE CE CE CE CE CE CE CE CE CE CE CE CE C E CE CE CE NORTH S10 0 19 PL A N T I N G P L A N 00 HORIZONTAL SCALE IN FEET 04080 80 MA T C H L I N E S E E S H E E T 2 0 MATCH LINE SEE SHEET 17 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : G - S W I F T I E _ P L A N T I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 S30 0 32 + 0 0 33+ 0 0 34+ 0 0 35+ 0 0 36+ 0 0 37+ 0 0 38+ 0 0 39+ 0 0 40+00 41+00 42+00 43+0 0 44+ 0 0 45+0 0 46+00 47+00 NOW OR FORMERLY PALUSTRINE GROUP, LLC PIN: 4812-20-1970 DB 1733 PG 0006 50 0 Y R 500YR500YR 500Y R 100YR 100YR 100Y R 100 Y R 100YR CE CE CE CE CE CE CE CE CE CE CE CECE CE CE CE CE CE C E C E CE CE CE CE CE CE C E NORTH 20 PL A N T I N G P L A N 00 HORIZONTAL SCALE IN FEET 04080 80 MA T C H L I N E S E E S H E E T 1 9 MATCH LINE SEE SHEET 18 SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RI S TOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : G - S W I F T I E _ P L A N T I N G . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 S300 DE T A I L S 21 HEADWATER STREAM VALLEY SECTION A-A NOT TO SCALE HEADWATER VALLEY BOTTOM WIDTH VARIES(APPROX. 15' TO 30') MEAN CHANNEL DEPTH (APPROX. 0.4' TO 0.7') HEADWATER VALLEY SIDE SLOPES VARY BASED ON GRADING PLAN. GRADED HEADWATER VALLEY ELEVATION PRIOR TO ROUGHING A A PLAN VIEW OF CHANNEL PATTERN 1. GRADE HEADWATER STREAM VALLEY AND BOTTOM WIDTH TO DESIGN CONTOURS AS SHOWN ON GRADING PLAN. 2. GRADE MICROTOPOGRAPHY USING STANDARD TILLAGE EQUIPMENT AS DESCRIBED IN THE SPECIFICATIONS. ALTERNATIVE CONSTRUCTION METHODS SHALL BE APPROVED BY THE ENGINEER PRIOR TO CONSTRUCTION. 3. THE HEADWATER STREAM VALLEY GRADING SHALL BE APPROVED BY ENGINEER FOLLOWING COMPLETION OF THE MICROTOPOGRAPHY ROUGHENING. 4. THE HEADWATER STREAM VALLEY WILL BE GRADED TO FORM SMOOTH TRANSITIONS AT THE CONFLUENCE. 5. UPON GRADING COMPLETION OF THE HEADWATER STREAM VALLEY, APPLY MULCH, TEMPORARY AND PERMANENT SEED IN ACCORDANCE WITH THE TECHNICAL SPECIFICATIONS. NOTES: PRIMARY CHANNEL PRIMARY CHANNEL HEADWATER STREAM VALLEY ALIGNMENT AND CENTERLINE STATIONING 15+00 LC RESTORED HEADWATER VALLEY BOTTOM WIDTH VARIES FLOODPLAIN DEPRESSION VARIE S B B A A FL O W COMPACTED WOODY DEBRIS AND LOGS BEGIN INVERT ELEVATION END INVERT ELEVATION HEADER LOGS TO BE ANGLED TOE OF STREAM BANK TOP OF STREAM BANK PLAN NOTES: 1. WOODY DEBRIS DEPTH SHALL BE NO LESS THAN 24". 2. WOODY DEBRIS MATERIAL SHOULD BE A MIX OF SMALL AND LARGE LIMBS AND LOGS. LOGS SHALL BE AT LEAST 4" IN DIAMETER AND NO LARGER THAN 10" AND EXTEND INTO THE BANK 3' ON EACH SIDE. WOODY DEBRIS MATERIAL SHALL BE VARYING DIAMETER TO ALLOW MATERIAL TO BE COMPACTED. 3. NON-WOVEN GEOTEXTILE FABRIC SHOULD BE NAILED TO THE HEADER LOG BELOW THE BACKFILL. 4. AFTER TRENCH HAS BEEN EXCAVATED LOGS AND WOODY DEBRIS SHOULD BE PLACED WITH MINIMAL GAPS. A LAYER OF ON-SITE ALLUVIUM SHOULD BE APPLIED TO FILL VOIDS BETWEEN LOGS AND WOODY DEBRIS BEFORE ADDITIONAL LAYERS ARE PLACED. 5. SEE TYPICAL SECTION FOR CHANNEL DIMENSIONS. CONSTRUCTED BRUSHY RIFFLE NOT TO SCALE EROSION CONTROL MATTING TRANSPLANTS OR LIVE STAKES SET INVERT BASED ON DESIGN PROFILE BANKFULL STAGE BASEFLOW 3' MINIMUM BURIED INTO BANK 3' MINIMUM BURIED INTO BANK TOP OF STREAM BANK HEADER LOG FOOTER LOG SECTION A-A 4' MIN. 4' MIN. NON-WOVEN GEOTEXTILE FABRIC (TYP.) BACKFILL WITH ON-SITE ALLUVIUM BACKFILL WITH ON-SITE ALLUVIUM 24" MIN. DEPTH FLOW STREA M B E D BANKFULL S T A G E BASEFLOW H ≤ 0.3' H ≤ 0.3' HEADER LOG COMPACTED WOODY DEBRIS AND LOGS FOOTER LOG SECTION B-B SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : H _ S W I F T I E L _ D E T A I L S . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 FLOODPLAIN DEPRESSION PER LOCATIONS SHOWN ON PLANS. CHANNEL BLOCK CHANNEL TO BE RELOCATED A A O L D F L O W 5 0 ' M I N I M U M PLAN VIEW PLACE UNCOMPACTED FILL A MIN. 1.0' ABOVE PROPOSED GRADE COMPACTED BACKFILL NEW STREAMBANK SHALL BE TREATED AS SPECIFIED IN PLANS CHANNEL BOTTOM/ INVERT ELEVATION 2 1 SECTION A-A 1. COMPACT CHANNEL BLOCK MATERIAL FOR BACKFILL USING HEAVY EQUIPMENT IN 10 INCH LIFTS. 2. CONSTRUCT CHANNEL BLOCK WITH COMPACTED SOIL USING SUITABLE MATERIAL IN ACCORDANCE WITH THE TECHNICAL SPECIFICATIONS. 3. PLACE FILL MATERIAL IN LOCATIONS SHOWN ON PLANS OR AS DIRECTED BY ENGINEER TO ALLOW FOR SETTLING. CHANNEL BLOCK NOTES: NEW TOP OF STREAM BANK NOT TO SCALE FLOODPLAIN DEPRESSION DEPTHS SHALL NOT EXCEED 8"-12". CHANNEL FILL OLD FLOW NEW FLOW DIRECTION DE T A I L S 22 A A 24" MAX. TYP. (TRENCH ONLY)TRENCH LIMITS TOP OF STREAM BANK SMALL MATTING STAKES 36" MAX. TYP.LARGE MATTING STAKES EROSION CONTROL MATTING TO BE EXTENDED TO TOE OF SLOPE. KEY IN NO LESS THAN 5 INCHES. PLAN VIEW OF STREAM BANK INSTALL EDGE OF EROSION CONTROL MATTING IN 6 INCH DEEP TRENCH, AND SECURE BY STAKING, BACKFILL, AND COMPACTING SOIL TO FINISH GRADE TOP OF STREAM BANK BANKFULL STAGE TOE OF STREAM BANK BANKFULL STAGE SMALL MATTING STAKES (TYP.) RESTORED STREAMBED INSTALL EROSION CONTROL MATTING AT TOE OF SLOPE BY KEYING IN MATTING NO LESS THAN 6 INCHES AND SECURING WITH LARGE MATTING STAKES. LARGE MATTING STAKES (TYP.) SECTION A-A TYPICAL LARGE MATTING STAKE TYPICAL SMALL MATTING STAKE 2.5 INCH GALVANIZED ROOFING NAIL LENGTH 24.00 IN (60.96 CM) (TAPERED TO POINT) WIDTH 1.5 IN (3.81 CM) THICKNESS 1.5 IN (3.81 CM) LEG LENGTH 11.00 IN (27.94 CM) HEAD WIDTH 1.25 IN (3.16 CM) HEAD THICKNESS 0.40 IN (1.02 CM) LEG WIDTH 0.60 IN (1.52 CM) (TAPERED TO POINT) LEG THICKNESS 0.40 IN (1.02 CM) TOTAL LENGTH 12.00 IN (30.48 CM) NOTES: 1. RESTORED STREAM BANKS MUST BE SEEDED AND MULCHED PRIOR TO PLACEMENT OF EROSION CONTROL MATTING. 2. SEE TECHNICAL SPECIFICATIONS FOR MATTING STAKE SPACING REQUIREMENTS. 3. PLACE LARGE STAKES ALONG ALL MATTING SEAMS, IN THE CENTER OF STREAM BANK, AND TOE OF SLOPE. EROSION CONTROL MATTING NOT TO SCALE DITCH BLOCK AA PLAN VIEW 2 1 SECTION A-A DITCH TO BE FILLED 100' MINIMUM FINISHED GRADE PLACE UNCOMPACTED FILL 1.0' ABOVE FINISHED GRADE COMPACTED SUITABLE BACKFILL MATERIAL DITCH BOTTOM/ INVERT ELEVATION 1. COMPACT DITCH BLOCK MATERIAL FOR BACKFILL USING HEAVY EQUIPMENT IN 10 INCH LIFTS. 2. CONSTRUCT DITCH BLOCK WITH COMPACTED SOIL USING SUITABLE MATERIAL IN ACCORDANCE WITH THE TECHNICAL SPECIFICATIONS. 3. PLACE FILL MATERIAL IN LOCATIONS SHOWN ON PLANS OR AS DIRECTED BY ENGINEER TO ALLOW FOR SETTLING. DITCH BLOCK WITH SUITABLE COMPACTED BACKFILL NOTES: N.T.S TOP OF DITCH TOP OF BANK SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : H _ S W I F T I E L _ D E T A I L S . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 A AEDGE OF WATER AT NORMAL FLOW PLAN FLOW POOL POINT OF CURVATURE (PC) FOOTER LOGS (12"-18" DIA. MIN.) RIPARIAN PLANTINGS AND LIVE STAKES RIPARIAN PLANTINGS AND LIVE STAKES TOE WOOD (SEE NOTE 2) POINT OF TANGENCY (PT) BANKFULL 1 8 " M I N . 4 ' - 6 ' FLOW TOE OF STREAM BANK MINIMUM OF 20 TO 50 LIVE BRANCHES PER SQ. YD. (2.5 INCH MAX BRANCH DIAMETER) SECURE BIODEGRADABLE TWINE OR ROPE TO DEAD STAKES DEAD STAKES MAX SPACING 3 FT O.C. WOOD STAKE OPTIONS 2"X4"X18" WOODEN STAKE NOTE: STAKE MAY BE MADE BY SAWING A 2X4 DIAGONALLY IN HALF NOTES: 1. IF AN APPROVED ON-SITE SOURCE IS AVAILABLE, SOD MATS LAYERS MAY BE USED INSTEAD OF GEOLIFT. SOD MATS MAY ALSO BE OBTAINED FROM CLEARING AND EXCAVATION WORK ASSOCIATED WITH THE PROJECT. THE NUMBER OF LAYERS OF GEOLIFT OR SOD MATS MAY VARY WITH THE BANK HEIGHT. 2. TOE WOOD CONSISTS OF A MIX OF LOGS, BRANCHES, BRUSH, AND OTHER WOODY VEGETATION INSTALLED AT VARIOUS ANGLE, BUT NOT PARALLEL TO THE FLOW. LAYER THE WOOD WITH LARGER MATERIAL ON THE BOTTOM AND A MAT OF BRANCHES AS THE TOP LAYER. THE TOP LAYER OF TOE WOOD SHALL BE AT THE ESTABLISHED NORMAL FLOW ELEVATION. 3. LAYER GEOLIFTS AND CUTTINGS TO BANKFULL. 4. LIVE STAKES SHALL BE USED IN LIEU OF LIVE CUTTINGS IF CONSTRUCTION OCCURS OUTSIDE THE DORMANT PLANTING SEASON. LIVE STAKES SHALL BE INSTALLED AFTER GEOLFITS ARE CONSTRUCTED BUT DURING DORMANT PLANTING SEASON. 5. THE NUMBER OF GEOLIFTS DEPENDS ON THE HEIGHT OF THE STREAM BANK. MINIMALLY ONE (1) GEOLIFT SHALL BE INSTALLED. GEOLIFT W/ TOE WOOD NOT TO SCALE EXISTING GROUND NORMAL FLOW WATER SURFACE (EL. OF DOWNSTREAM RIFFLE) GEOLIFT RESTORE DISTURBED AREA WITH TOPSOIL, SEEDING, MULCHING, AND PLANTING LIVE STAKES (SEE NOTE 4) BANKFULL (TOP OF REINFORCED EARTH) 12 1 2 TOE WOOD (SEE NOTE 2) EXCAVATION LIMITS FOOTER LOGS SECTION A-A NOTE: 2"X2" WOODEN STAKE TAPERED TO A POINT 2.5 INCH GALVANIZED ROOFING NAIL GEOLIFT WOOD STAKES FOR ANCHORING PLACE MULCH INSIDE FABRIC WRAP FABRIC WRAP 6" MIN. LIVE STAKES (SEE NOTE 4) LIVE CUTTINGS THE ELEVATION OF THE TOP OF TOE WOOD SHALL BE ESTABLISHED AT APPROXIMATELY 2 INCHES ABOVE THE DOWNSTREAM RIFFLE ELEVATION. IF THE CHANNEL SIZE DOES NOT ALLOW THIS THE ELEVATION CAN BE SET TO THE SAME ELEVATION AS THE DOWNSTREAM RIFFLE. DE T A I L S 23 2" BARE ROOT PLANTING DETAIL NOT TO SCALE 1. INSERT PLANTING BAR AS SHOWN AND PULL HANDLE TOWARD PLANTER. PLANTING METHOD USING THE PLANTING BAR 2. REMOVE PLANTING BAR AND PLACE SEEDLING AT CORRECT DEPTH. 3. INSERT PLANTING BAR 2 INCHES TOWARD PLANTER FROM SEEDLING. 4. PULL HANDLE OF BAR TOWARD PLANTER, FIRMING SOIL AT BOTTOM. 5. PUSH HANDLE FORWARD FIRMING SOIL AT TOP. 6. LEAVE COMPACTION HOLE OPEN. WATER THOROUGHLY. NOTES: PLANTING BAG PLANTING BAR 1. PLANT BARE ROOT VEGETATION TO THE WIDTH OF THE BUFFER/PLANTING ZONE AS SHOWN ON THE PLANS. 2. ALLOW FOR 8-15 FEET SPACING BETWEEN PLANTINGS, AS DEFINED IN THE TECHNICAL SPECIFICATIONS. 3. LOOSEN COMPACTED SOIL. 4. PLANT IN HOLES MADE BY A MATTOCK, DIBBLE, PLANTING BAR OR OTHER APPROVED MEANS. 5. PLANT IN HOLES DEEP AND WIDE ENOUGH TO ALLOW THE ROOTS TO SPREAD OUT AND DOWN WITHOUT J-ROOTING. 6. KEEP ROOTS MOIST WHILE DISTRIBUTING OR WAITING TO PLANT BY MEANS OF WET CANVAS, BURLAP OR STRAW. 7. HEEL-IN PLANTS IN MOIST SOIL OR SAWDUST IF NOT PROMPTLY PLANTED UPON ARRIVAL TO THE PROJECT SITE. 8. DURING PLANTING, SEEDLINGS SHALL BE KEPT IN A MOIST CANVAS BAG OR SIMILAR CONTAINER TO PREVENT ROOT SYSTEMS FROM DYING. 9. PLANTING BAR SHALL HAVE A BLADE WITH A TRIANGULAR CROSS SECTION AND SHALL BE 12 INCHES LONG, 4 INCHES WIDE AND 1 INCH THICK AT CENTER. 10. ALL SEEDLINGS SHALL BE PRUNED IF NECESSARY, SO THAT NO ROOTS EXTEND MORE THAN 10 INCHES BELOW THE ROOT COLLAR. HEALING IN 1. LOCATE A HEALING-IN SITE IN A SHADY, WELL PROTECTED AREA. 2. EXCAVATE A FLAT BOTTOM TRENCH 12 INCHES DEEP AND PROVIDE DRAINAGE. 3. BACKFILL TRENCH WITH 2 INCHES WELL ROTTED SAWDUST. PLACE A 2 INCH LAYER OF WELL ROTTED SAWDUST AT A SLOPING ANGLE AT ONE END OF THE TRENCH. 4. PLACE A SINGLE LAYER OF PLANTS AGAINST SLOPING END SO THAT THE ROOT COLLAR IS AT GROUND LEVEL. 5. PLACE A 2 INCH LAYER OF WELL ROTTED SAWDUST OVER THE ROOTS MAINTAINING A SLOPING ANGLE. 6. REPEAT LAYERS OF PLANTS AND SAWDUST AS NECESSARY AND WATER THOROUGHLY. SW I F T I E M I T I G A T I O N P R O J E C T PRO F E S SIONA LSEAL 36916 ENGI N E E R NO R T H C AROLINA C H RISTOP A TOM . IC HER SPRE L I M I N A R Y PLA N S NO T F O R CO N S T R U C T I O N EN G I N E E R I N N G S E R V I C E P R O V I D E B Y : WL S E N G I N E E R I N G P L L C 6 D U L A S P R I N G S R D . , W E A V E R V I L L E , N C 2 8 7 8 7 FI R M L I C E N S E N O . P - 1 4 8 0 77 2 1 S i x F o r k s R d . , S u i t e 1 3 0 Ra l e i g h , N C 2 7 6 1 5 (9 1 9 ) 6 1 4 - 5 1 1 1 wa t e r l a n d s o l u t i o n s . c o m WA T E R & L A N D S O L U T I O N S DR A W I N G I N F O FI L E N A M E : H _ S W I F T I E L _ D E T A I L S . D W G ED G E C O M B E C O U N T Y , N O R T H C A R O L I N A SHEET NO. PR O J E C T N A M E SH E E T N A M E DE S I G N E D B Y : DR A W N B Y : AP P R O V E D B Y : SC A L E : DA T E : PR O J E C T N O . : 18 - 0 0 1 9- 1 5 - 2 0 2 3 AS N O T E D CA T AL JP H NO . D E S C R I P T I O N D A T E 9- 1 5 - 2 0 2 3 DR A F T M I T P L A N RE V I S I O N S 1 C C B B A A POOL POOL POOL POOL FL O W BANKFULL ELEVATION LARGE STONE BANK PROTECTION ANCHOR BOULDERS BURY LOGS INTO BANK 5' MIN. (TYP.) NOTES: 1. LOGS SHOULD BE AT LEAST 12 INCHES IN DIAMETER, RELATIVELY STRAIGHT HARDWOOD AND RECENTLY HARVESTED. 2. LOGS >24 INCHES IN DIAMETER MAY BE USED AT THE HEAD OF RIFFLE ALONE WITHOUT AN ADDITIONAL LOG. FILTER FABRIC SHOULD STILL BE USED TO SEAL AROUND LOG. LOGS SHOULD EXTEND INTO THE BANKS 5' ON EACH SIDE. 3. SOIL SHALL BE WELL COMPACTED AROUND BURIED PORTION OF FOOTER LOGS WITH BUCKET OF TRACK HOE. 4. EXCAVATE TRENCH BEHIND HEADER AND FOOTER LOGS AT HEAD OF RIFFLE TO DEPTH OF BOTTOM OF FOOTER LOGS AND MINIMALLY 4' UPSTREAM. 5. INSTALL GEOTEXTILE FILTER FABRIC BY OVERLAPPING ON TOP OF FOOTER LOG APPROXIMATELY 4". EXTEND THE FABRIC DOWN TO THE DEPTH OF THE BOTTOM OF THE FOOTER LOG AND UPSTREAM MINIMALLY 4'. 6. INSTALL SUBSTRATE RESTORATION TO THE DEPTH OF THE BOTTOM OF THE FOOTER LOG AND EXTENDING MINIMALLY 4' UPSTREAM. 7. UNDERCUT POOL BED ELEVATION 8 INCHES TO ALLOW FOR LAYER OF STONE. 8. INSTALL EROSION CONTROL MATTING ALONG COMPLETED BANKS SUCH THAT THE EROSION CONTROL MATTING AT THE TOE OF THE BANK EXTENDS DOWN TO THE UNDERCUT ELEVATION. 9. INSTALL STONE BACKFILL OR SUITABLE SOIL MATERIAL ALONG SIDE SLOPES. 10. SUBSTRATE RESTORATION MATERIAL SHALL BE USED IN THE RIFFLES TO CHINK GAPS IN THE ANCHOR LOGS. ALLUVIUM FROM THE EXISTING STREAM BED MEETING THE SIZE CLASSIFICATION IS ACCEPTABLE. 11. FINAL CHANNEL BED SHAPE SHOULD BE ROUNDED, COMPACTED, AND CONCAVE, WITH THE ELEVATION OF THE BED BASED ON THE DESIGN PROFILE 12. AVERAGE POOL TO POOL SPACING SHALL BE SHOWN ON THE PROFILE OR SPECIFIED BY ENGINEER BASED ON EXISTING CONDITIONS SUCH AS SLOPE AND SUITABLE FILL MATERIAL. RIFFLE STEP POOLS BE SUBSTITUTED IN AREAS WHERE EXISTING SLOPES EXCEED 10% AS DETERMINED BY THE ENGINEER. 13. BOULDERS SHALL BE USED TO ANCHOR LOGS UNLESS DIRECTED BY ON-SITE CONSTRUCTION MANAGER. 14. LOGS SILLS SHALL OVERLAP AND ANCHOR THE LOG SILL DIRECTLY UPSTREAM. 15. THE LOG SILLS SHALL ALL BE DESIGNED TO BE SUBMERGED OR COVERED AT LOW FLOWS. 16. THE MAX DROP FROM ONE MINI-VANE TO THE NEXT SHALL BE NO GREATER THAN 0.1 FT. THE TOTAL AMOUNT OF DROP OVER ALL MINI-VANES SHALL NOT EXCEED THE AMOUNT OF DROP IN THE RIFFLE SLOPE. 17. ALL VANES SHALL BE EQUALLY SPACED ALONG THE LENGTH OF THE RIFFLE. 18. ALL MATERIALS ARE TO BE APPROVED BY ENGINEER OR ENGINEER'S ONSITE CONSTRUCTION MANAGER. 19. ITEMS IN THIS DETAIL ARE A GRAPHICAL ILLUSTRATION AND DO NOT SPECIFY THE ACTUAL QUANTITY OF MATERIALS (I.E. LOGS, BOULDERS, STONE, ETC.) TO BE USED FOR CONSTRUCTION. SECTION A-A 0.10' MAX ABOVE STREAM BED HEADER AND FOOTER LOG TO BE PLACED AT HEAD OF RIFFLE NON-WOVEN GEOTEXTILE FABRIC TO EXTEND 4' MIN. UPSTREAM SUBSTRATE RESTORATION TO EXTEND 4' MIN. UPSTREAM BANKFULL ELEVATION 2-4% S L O P E TOP OF STREAMBANK SECTION B-B BANKFULL ELEVATION BASEFLOW SET INVERT ELEVATION BASED ON DESIGN PROFILE TRANSPLANTS OR LIVE STAKES TOP OF STREAMBANK HEADER LOG FOOTER LOG 1% - 2% CROSS SLOPEBURY LOGS INTO BANK 5' MIN. (TYP.) SECTION C-C LOG RIFFLE NOT TO SCALE PLAN A A PLAN VIEW OF STREAM BANK LIVE STAKE TOP OF STREAMBANK PLANT LIVE STAKES FROM TOP OF STREAM BANK TO TOE OF STREAM BANK IN A DIAMOND SHAPED, STAGGERED PATTERN TO SPECIFIED SPACING RESTORED STREAMBED TOE OF STREAMBANK 6' SPACING 3' SPACING NO LIVE STAKES ON POINT BAR TOE OF STREAMBANK TOP OF STREAMBANK THALWEG LIVE STAKE SPACING PLAN VIEW BASE FLOW RESTORED STREAMBED TOE OF STREAMBANK LIVE STAKE BANKFULL STAGE TOP OF STREAMBANK SECTION A-A SQUARE CUT TOP BUDS FACING UPWARD LIVE CUTTING MINIMUM 1/2" DIAMETER ANGLE CUT 30 TO 45 DEGREES 2' TO 3' LENGTH LIVE STAKE DETAIL NOTES: 1. LIVE STAKES SHOULD BE CUT AND INSTALLED ON THE SAME DAY. 2. DO NOT INSTALL LIVE STAKES THAT HAVE BEEN SPLIT. 3. LIVE STAKES MUST BE INSTALLED WITH BUDS POINTING UPWARDS. 4. LIVE STAKES SHOULD BE INSTALLED PERPENDICULAR TO BANK. 5. LIVE STAKES SHOULD BE 1/2 TO 2 INCHES IN DIAMETER AND 2 TO 3 FEET LONG. 6. LIVE STAKES SHOULD BE INSTALLED LEAVING 1/5 OF THE LENGTH OF THE LIVE STAKE ABOVE GROUND. LIVE STAKING NOT TO SCALE Appendix B - Existing Conditions Data Swiftie Mitigation Project Existing Cross-Section Data Particle Size Distribution Hydric Soils Report Pre-restoration Gauge Data NC DWR Stream Identification Forms Reference Reach Survey Data Cross Section XS-1 Bankfull Dimensions Flood Dimensions Materials 1.6 x-section area (ft.sq.)6.6 W flood prone area (ft)0.31 D50 Riffle (mm) 4.4 width (ft)1.5 entrenchment ratio 0.81 D84 Riffle (mm) 0.4 mean depth (ft)2.4 low bank height (ft)8 threshold grain size (mm): 0.5 max depth (ft)4.7 low bank height ratio 4.7 wetted parimeter (ft) 0.3 hyd radi (ft) 11.9 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 3.3 velocity (ft/s)0.020 Manning's roughness 0.79 channel slope (%) 5.3 discharge rate (cfs)0.07 D'Arcy-Weisbach fric.0.17 shear stress (lb/sq.ft.) 0.98 Froude number 15.4 resistance factor u/u*0.30 shear velocity (ft/s) 138.3 relative roughness 0.59 unit strm power (lb/ft/s) 90.5 91 91.5 92 92.5 93 93.5 94 94.5 95 95.5 96 0 20406080100120 El e v a t i o n Width Swiftie, Riffle, S100 Cross Section XS-2 Bankfull Dimensions Flood Dimensions Materials 4.7 x-section area (ft.sq.)50.0 W flood prone area (ft)0.31 D50 Riffle (mm) 6.0 width (ft)8.3 entrenchment ratio 0.81 D84 Riffle (mm) 0.8 mean depth (ft)1.4 low bank height (ft)0 threshold grain size (mm): 1.4 max depth (ft)1.0 low bank height ratio 6.7 wetted parimeter (ft) 0.7 hyd radi (ft) 7.7 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.7 velocity (ft/s)0.014 Manning's roughness 0.007 channel slope (%) 3.2 discharge rate (cfs)0.03 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.15 Froude number 17.3 resistance factor u/u*0.04 shear velocity (ft/s) 293.4 relative roughness 0.0023 unit strm power (lb/ft/s) 92.5 93 93.5 94 94.5 95 95.5 96 0 102030405060 El e v a t i o n Width Swiftie, Riffle, Ditch 4 Cross Section XS-3 Bankfull Dimensions Flood Dimensions Materials 0.8 x-section area (ft.sq.)88.5 W flood prone area (ft)0.31 D50 Riffle (mm) 6.5 width (ft)13.5 entrenchment ratio 0.81 D84 Riffle (mm) 0.1 mean depth (ft)0.6 low bank height (ft)--- threshold grain size (mm): 0.6 max depth (ft)1.0 low bank height ratio 6.6 wetted parimeter (ft) 0.1 hyd radi (ft) 51.4 width-depth ratio Bankfull Flow Flow Resistance Forces & Power --- velocity (ft/s)0.040 Manning's roughness --- channel slope (%) --- discharge rate (cfs)0.37 D'Arcy-Weisbach fric.--- shear stress (lb/sq.ft.) --- Froude number 13.8 resistance factor u/u*--- shear velocity (ft/s) 47.8 relative roughness --- unit strm power (lb/ft/s) 93.5 94 94.5 95 95.5 96 96.5 97 0 20 40 60 80 100 120 140 El e v a t i o n Width Swiftie, Riffle, S200 Cross Section XS-4 Bankfull Dimensions Flood Dimensions Materials 4.0 x-section area (ft.sq.)5.8 W flood prone area (ft)0.31 D50 Riffle (mm) 5.6 width (ft)1.0 entrenchment ratio 0.81 D84 Riffle (mm) 0.7 mean depth (ft)3.7 low bank height (ft)0 threshold grain size (mm): 1.0 max depth (ft)3.7 low bank height ratio 6.1 wetted parimeter (ft) 0.6 hyd radi (ft) 7.8 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.3 velocity (ft/s)0.030 Manning's roughness 0.0055 channel slope (%) 1.1 discharge rate (cfs)0.12 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.06 Froude number 16.9 resistance factor u/u*0.03 shear velocity (ft/s) 267.2 relative roughness 0.00067 unit strm power (lb/ft/s) 88 89 90 91 92 93 94 95 96 0 5 10 15 20 25 30 35 40 45 El e v a t i o n Width Swiftie, Riffle, S300 (upper) Cross Section XS-5 Bankfull Dimensions Flood Dimensions Materials 3.8 x-section area (ft.sq.)8.9 W flood prone area (ft)0.31 D50 Riffle (mm) 3.1 width (ft)2.9 entrenchment ratio 0.81 D84 Riffle (mm) 1.2 mean depth (ft)3.6 low bank height (ft)0 threshold grain size (mm): 1.6 max depth (ft)2.3 low bank height ratio 3.8 wetted parimeter (ft) 1.0 hyd radi (ft) 2.6 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.2 velocity (ft/s)0.050 Manning's roughness 0.0038 channel slope (%) 0.7 discharge rate (cfs)0.29 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.03 Froude number 18.0 resistance factor u/u*0.03 shear velocity (ft/s) 457.3 relative roughness 0.00053 unit strm power (lb/ft/s) 88 89 90 91 92 93 94 95 96 0 5 10 15 20 25 30 35 40 45 El e v a t i o n Width Swiftie, Riffle, S300 (lower) Cross Section XS-6 Bankfull Dimensions Flood Dimensions Materials 8.1 x-section area (ft.sq.)14.0 W flood prone area (ft)0.31 D50 Riffle (mm) 8.3 width (ft)1.7 entrenchment ratio 0.81 D84 Riffle (mm) 1.0 mean depth (ft)5.8 low bank height (ft)0 threshold grain size (mm): 1.6 max depth (ft)3.6 low bank height ratio 9.1 wetted parimeter (ft) 0.9 hyd radi (ft) 8.6 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.3 velocity (ft/s)0.050 Manning's roughness 0.009 channel slope (%) 2.1 discharge rate (cfs)0.30 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.05 Froude number 17.9 resistance factor u/u*0.05 shear velocity (ft/s) 365.4 relative roughness 0.0014 unit strm power (lb/ft/s) 87 88 89 90 91 92 93 94 95 96 0 102030405060 El e v a t i o n Width Swiftie, Riffle, S400 (no credit) Cross Section XS-7 Bankfull Dimensions Flood Dimensions Materials 8.5 x-section area (ft.sq.)95.6 W flood prone area (ft)0.25 D50 Riffle (mm) 15.6 width (ft)6.1 entrenchment ratio 0.86 D84 Riffle (mm) 0.5 mean depth (ft)1.0 low bank height (ft)0 threshold grain size (mm): 1.0 max depth (ft)1.0 low bank height ratio 15.7 wetted parimeter (ft) 0.5 hyd radi (ft) 28.3 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.1 velocity (ft/s)0.045 Manning's roughness 0.0014 channel slope (%) 0.7 discharge rate (cfs)0.29 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.02 Froude number 16.5 resistance factor u/u*0.02 shear velocity (ft/s) 194.6 relative roughness 0.00004 unit strm power (lb/ft/s) 53 53.5 54 54.5 55 55.5 56 0 20406080100120 El e v a t i o n Width Swiftie, Riffle, S500 Cross Section XS-8 Bankfull Dimensions Flood Dimensions Materials 8.9 x-section area (ft.sq.)95.7 W flood prone area (ft)0.25 D50 Riffle (mm) 14.1 width (ft)6.8 entrenchment ratio 0.86 D84 Riffle (mm) 0.6 mean depth (ft)1.3 low bank height (ft)0 threshold grain size (mm): 1.3 max depth (ft)1.0 low bank height ratio 14.4 wetted parimeter (ft) 0.6 hyd radi (ft) 22.3 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.1 velocity (ft/s)0.045 Manning's roughness 0.0024 channel slope (%) 1.1 discharge rate (cfs)0.28 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.03 Froude number 16.9 resistance factor u/u*0.02 shear velocity (ft/s) 224.5 relative roughness 0.00011 unit strm power (lb/ft/s) 50.5 51 51.5 52 52.5 53 53.5 54 0 20 40 60 80 100 120 El e v a t i o n Width Swiftie, Riffle, S600 Cross Section XS-9 Bankfull Dimensions Flood Dimensions Materials 2.0 x-section area (ft.sq.)29.2 W flood prone area (ft)0.25 D50 Riffle (mm) 9.8 width (ft)3.0 entrenchment ratio 0.86 D84 Riffle (mm) 0.2 mean depth (ft)0.4 low bank height (ft)0 threshold grain size (mm): 0.4 max depth (ft)1.0 low bank height ratio 9.9 wetted parimeter (ft) 0.2 hyd radi (ft) 49.3 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 0.1 velocity (ft/s)0.045 Manning's roughness 0.006 channel slope (%) 0.2 discharge rate (cfs)0.40 D'Arcy-Weisbach fric.0.00 shear stress (lb/sq.ft.) 0.03 Froude number 14.1 resistance factor u/u*0.02 shear velocity (ft/s) 70.8 relative roughness 0.000065 unit strm power (lb/ft/s) 54.5 55 55.5 56 56.5 57 57.5 58 58.5 0 102030405060 El e v a t i o n Width Swiftie, Riffle, S700 12% 12% 16% 21% 16% 11% 6% 2% 1% 1% 2% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Type D16 0.078 mean 0.4 silt/clay 12% D35 0.2 dispersion 4.5 sand 76% D50 0.35 skewness 0.00 gravel 12% D65 0.59 cobble 0% D84 1.6 boulder 0% D95 4.9 Size (mm) Size Distribution silt/clay sand gravel cobble boulder 0% 5% 10% 15% 20% 25% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.01 0.1 1 10 100 1000 10000 we i g h t e d p e r c e n t o f p a r t i c l e s i n r a n g e pe r c e n t f i n e r t h a n particle size (mm) Weighted pebble count by bed features Swiftie, S100 weighted percent Riffle Pool Run Glide # of particles 90% riffle 10% pool 14% 9% 12% 19% 20% 18% 4% 1% 2% 1% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Type D16 0.072 mean 0.3 silt/clay 14% D35 0.25 dispersion 4.7 sand 78% D50 0.43 skewness -0.10 gravel 8% D65 0.73 cobble 0% D84 1.5 boulder 0% D95 3.4 Size (mm) Size Distribution silt/clay sand gravel cobble boulder 0% 5% 10% 15% 20% 25% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.01 0.1 1 10 100 1000 10000 we i g h t e d p e r c e n t o f p a r t i c l e s i n r a n g e pe r c e n t f i n e r t h a n particle size (mm) Weighted pebble count by bed features Swiftie, S200 weighted percent Riffle Pool Run Glide # of particles 90% riffle 10% pool 13% 10% 14% 24% 26% 13% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Type D16 0.077 mean 0.3 silt/clay 13% D35 0.23 dispersion 3.6 sand 87% D50 0.36 skewness -0.13 gravel 0% D65 0.56 cobble 0% D84 0.92 boulder 0% D95 1.5 Size (mm) Size Distribution silt/clay sand gravel cobble boulder 0% 5% 10% 15% 20% 25% 30% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.01 0.1 1 10 100 1000 10000 we i g h t e d p e r c e n t o f p a r t i c l e s i n r a n g e pe r c e n t f i n e r t h a n particle size (mm) Weighted pebble count by bed features Swiftie, S300 weighted percent Riffle Pool Run Glide # of particles 80% riffle 20% pool FINAL Detailed Hydric Soils Study Swiftie Mitigation Bank Edgecombe County NC Prepared for: Catherine Roland Water & Land Solutions 7721 Six Forks Rd., Suite 130 Raleigh, NC 27615 Prepared by: George K Lankford Soil Scientist, LSS #1223 George K Lankford, LLC 238 Shady Grove Rd Pittsboro, NC 27312 July 2023 Soil Scientist Seal This report provided to Water & Land Solutions describes the results of the soil evaluation performed at the Swiftie Mitigation Bank in Edgecombe County, NC. Any subsequent transfer of the report by the user shall be made by transferring the complete report, including figures, maps, appendices, all attachments, and disclaimers. FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 2 of 13 GEORGE K LANKFORD, LLC Study Objectives and Scope The purpose of the study was to evaluate the site soils and delineate the extent of hydric soils potentially suitable for hydrologic restoration and mitigation. The capacity for hydrologic restoration is evaluated considering both historic and existing land uses, current management, modifications of hydrology and soils, and the potential for establishing a hydroperiod appropriate for its landscape setting and soils. This evaluation focuses on the use of practical technical solutions to support re-establishing and enhancing the natural hydrology at this site. The potential for restoration assumes the ability to develop an appropriate design and capability to construct site modifications necessary to restore adequate hydrology. Practical modifications may include, but are not limited to reversal of drainage modifications such as plugging drainage ditches, removal of fill materials, roughening surfaces, and creation/enhancement of existing depressions. Recommendation for re-establishment and rehabilitation of wetland follows the Principles of Wetland Restoration (USEPA 2000) that promote successful development of a functioning wetland community by restoring ecological integrity by re-establishment of natural structure and function. Based upon the three criteria for defining wetlands, hydrology, soils, and vegetation, this report focuses on soils and their potential for supporting hydrology and vegetation. A detailed field investigation of soils for the purpose of confirming the presence of and delineating the extent of hydric soil for the suitability for wetland mitigation was conducted at the Swiftie Mitigation Bank (Swiftie Site). This report describes these findings, conclusions, and recommendations for wetland re-establishment at the Swiftie Site. The observations and opinions stated in this report reflect conditions apparent on the subject property at the time of the site evaluation. My findings, opinions, conclusions, and recommendations are based on professional experience, observed soil morphology, landscape position, drainage patterns, site conditions, and boundaries of the property as evident in the field. Project Information and Background The Swiftie Site is located approximately 7.5 miles northwest of Tarboro, NC. This site lies south of Highway 33 and southeast of White Oak Swamp Road (SR 1428) (Figure 1). Land use of the contributing watershed community is rural, consisting of agricultural farmland and undeveloped forest land (Figure 2). Also, the site is adjacent to an existing mitigation bank to the south on the floodplain of Swift Creek. The Swiftie Site extends from near Highway 33 south to the floodplain of Swift Creek. This report is limited to approximately 45 acres closer to Highway 33 and does not address the portion of the project along Swift Creek. The area evaluated includes the headwaters of an unnamed tributary to Swift Creek, forested jurisdictional wetlands, and cultivated agricultural fields. A site soil evaluation such as described within this report is necessary to determine soil characteristics relevant to the success of the desired land use. The site evaluation and hydric soil delineation included both drained hydric soils and jurisdictional wetlands within the project boundary. At the time of this report the jurisdictional wetland boundaries are awaiting US Army Corps of Engineers concurrence. NRCS Soil Mapping The NRCS Soil Survey provides county level data that can be used in general planning for farms and larger areas (NRCS). The soil survey provides maps displaying soil map units and gives a brief description for each of the major soil types along with their characteristics. These descriptions are produced at the county level that may give additional local management concerns. Soil mapping units identify areas of soil having similarly defined soil properties and physical characteristics with similar management criteria based upon these properties. Due to mapping scale, these soil map units cannot completely describe a map unit, but provide general information related to management and potential use limitations. Each unit describes a range of soils characteristics that may be found within a landscape or landscape position characteristic of the region. A Soil Survey map unit often correlates closely with FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 3 of 13 GEORGE K LANKFORD, LLC general soil characteristics observed at a location, but have limitations because soils represent the natural conditions and gradients that are influenced by geology, slope, and past land management practices. The properties described provide a useful background for interpreting soil that may be encountered at the site and are the starting point for this soil evaluation. NRCS Map Units This site is within the Southern Coastal Plain physiographic region (MLRA 133A). This MLRA is bordered by the fall line to the west and it is an erosional landscape that formed as the ocean receded during the Quaternary period. Subsequent changes in sea level created terraces in younger deposits, creating a benched appearance (USDA-NRCS 2006). The topography consists of nearly level ridges with gently undulating valleys with gently to steeply sloping uplands. Smaller, headwater streams are narrow with larger streams becoming broad with meandering channels. The unconsolidated sediments underlying the soils originated in the hills of the Piedmont to the west and are made up of unconsolidated coastal plain sediments of clay, silt, sand, and gravel deposited from the west. Soils are formed within the geologic materials present. The site is below the crest of an interstream divide within a concave backwater on an old stream terrace where shallow valleys converge. The project landscape is nearly level to concave. Soil mapping units in the area generally follow landscape position and slope. Across most of the project the NRCS soil survey has an extensive map unit of a poorly drained Roanoke (Ro) that is surrounded by well drained Wagram (WaB) and Norfolk (NoB) soil upslope and well drained Conetoe (CeB) and State (StB) soils downslope. Also located within the landscape is a moderately well drained Altivista (AaA) that may contain various poorly drained inclusions. A poorly drained Rains (RaA) soils occupy similar landscape as the Roanoke, but exhibits slightly more slope. Most map units have potential inclusions of soils that may be better or poorer drained, often found where slopes become more complex, textures differ, or there are changes in groundwater. Within the project, Roanoke and Rains soils are classified as hydric by the NRCS. Better drained soils are not classified as hydric, but may contain hydric inclusions. The Wagram map unit may contain wetter soils, often within linear concave landforms that can transition into low gradient valleys. The soils present can potentially be drained with ditching and limited surface contouring typical of agricultural practices. The dominate NRCS Map Units are briefly described below. Roanoke The Roanoke map unit are locally mapped on slightly concave landforms of backswamps and depressions on stream terraces. It is naturally wet and when drained, it is classified as Farmland of Statewide Importance. Forming in clayey fluvial sediments, this soil typically has a dark grayish brown surface higher in organics underlain by depleted, gray clay subsoils. Surfaces are loamy textures and underlain with the clayey subsoil horizons commonly having redoximorphic mottles. They are naturally poorly drained soils with the water table within 12 inches of the surface. They can be frequently flooded for brief periods between November and May. A high water table and flooding are the main limitations for use with drainage modifications a common management practice. Permeability ranges from moderately low to moderately high and runoff is low. Rains The Rains map unit occurs on the nearly level to slightly depressional flatwoods of broad interstream divides and along linear, concave, valley like features. Where drained, it is classified as Prime Farmland. Forming in loamy marine deposits, surfaces are loamy textures with the clayey subsoil horizons. The surface color is a very dark gray high in organics and is underlain by depleted, gray sandy clay loam subsoils exhibiting yellowish brown and red redoximorphic concentrations of oxidized iron. This poorly drained soil has a water table within 12 inches of the surface between November and April. Permeability ranges from moderately high to high and runoff is naturally low unless ditched and crowned. A high FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 4 of 13 GEORGE K LANKFORD, LLC water table and flooding are the main limitations for use with drainage modifications a common management practice. Altivista The Altivista map unit is found on stream terraces and is classified as Prime Farmland. Forming in fine textured loamy alluvial sediments, this soil typically has a grayish brown loamy surface of mostly unmasked soil particles. The surface is underlain by bright brownish yellow or yellowish-brown clay loams. They are moderately well drained soils with a water table at 18 to 30 inches December through March. Potential wetness is a moderate limitation for use and management with drainage modifications common. Permeability ranges from moderately high to high and runoff is low. Within this unit are potential inclusions of poorly drained Roanoke, Tomotley, Wehadkee, and Bibb. Additional upland soil map units are on present surrounding the project, but are not discussed here. General characteristics of these mapping units are summarized in Table 1. Table 1. NRCS Hydric Soil Map Units at the Swiftie Mitigation Bank. Series Taxonomic Class Drainage Class Hydric (Hydric Rating) Landscape setting (down across) (Ro) Roanoke loam (Consociation) Farmland of statewide importance – (Backswamps on stream terraces, depressions on stream terraces) Parent material: old clayey alluvium derived from igneous and metamorphic rock Depth to water table: 0 to 12 inches Flooding: none to occasional Ponding: rare Roanoke (100%) Typic Endoaquults poorly Yes (C/D) concave - linear (AaA) Altavista fine sandy loam, 0 to 3 percent slopes (Consociation) Prime Farmland– (stream terraces, depression, floodplains, toe slopes) Parent material: old loamy alluvium derived from igneous and metamorphic rock Depth to water table: 18 to 30 inches Flooding: rare Ponding: none Altavista (91%) Aquic Hapludults moderately well No (C) concave - linear Roanoke (5%) Typic Endoaquults poorly Yes (C/D) Tomotley (2%) Yes (B/D) linear - linear Wehadkee (1%) Fluvaquentic Endoaquepts concave - linear Bibb (1%) Typic Fluvaquents Yes (A/D) (RaA) Rains fine sandy loam, 0 to 2 percent slopes, Southern Coastal Plain (Consociation) Prime farmland if drained – (broad interstream divides on marine terraces, Carolina bays on marine terraces, flats on marine terraces) Parent material: Loamy marine deposits Depth to water table: 0 to 12 inches Flooding: none Ponding: none Rains (86%) Typic Paleaquults poorly Yes (B/D) linear - linear Pantego (6%) Umbric Paleaquults very poorly Yes (A/D) linear - concave Source-NRCS Web Soil Survey (2023 06 13) FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 5 of 13 GEORGE K LANKFORD, LLC Project Approach A project goal is to enhance biological functions common to riparian wetland systems and improve downstream water quality. The mitigation proposed is to re-establish and enhance the hydroperiod where drainage conditions have been modified that reduce and remove wetland hydrology in hydric soils. A hydric soil with restored hydrology should sustain hydroperiods appropriate for the landscape and available hydrology sources. Soils were evaluated using visible morphologic features, landscape position, and hydric soil indicators verifying the occurrence of historical or current hydroperiods common to wetlands. Past land use and modifications to drainage are considered relative to the current hydroperiods and the practicality of removing modifications to restore wetland hydrology. Potentially suitable sources of hydrology were identified and evaluated for ability to construct and provide adequate hydrology. Where the drainage has resulted in the complete loss of wetland hydroperiods, the area is considered suitable for re-establishment. Where the modifications have reduced or limits a natural hydroperiod, the mitigation is considered suitable for rehabilitation or enhancement. Methodology A detailed hydric soil investigation for the Swiftie site was completed in April of 2022. A series of approximately 162 soil borings were performed across the site to described and verify the presence and estimate the extent of hydric soil. Additionally, drainage modifications and potential for hydrologic modifications were assessed. The site also contains areas with current wetland hydrology that have been delineated. Within appropriate landscapes the soils were evaluated for potential to support a wetland hydrology. Soil boring descriptions are not intended for classification to an individual soil series, but is generally referenced to the local NRCS Soil Mapping Units. Evaluation Criteria Hydric soil indicators were evaluated using observed morphologic characteristics following criteria based on "Field Indicators of Hydric Soils in the United States" (USDA, NRCS, 2018, Version 8.2). Hydrology was evaluated utilizing observed morphologic features, potential permeability, potential restrictive horizons, current drainage modifications and professional experience. The presence of hydric soil indicators may not reflective the current hydrology where drainage, surface contouring, and tillage have and altered historic hydrologic condition changed soils morphology. This leads to a potentially relict hydric indicator or the loss of indicators. The morphological interpretation of relict indicators follows Vepraskas (1994). A hydroperiod success criteria is proposed based upon Corps mitigation guidelines (US Army Corps of Engineers 2016) along with specific site conditions where appropriate. Hydric soil indicators used are valid for the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region Version 2.0 within Major Land Resource Area (MLRA) 136 (Southern Piedmont) and Land Resource Region (LRR) P - South Atlantic and Gulf Slope Cash Crops, Forest, and Livestock Region. Soil boring locations examined were approximately located using the Terrain Navigator Pro smart phone application by Trimble and figures were produced from the same software (Figure 3). All boundaries shown are based on the detailed field delineation. The delineated boundary points were located using EOS Arrow 100Pro, a submeter GNSS (Global Navigation Satellite System). An official concurrence with the US Corps of Engineers is being sought to verify wetland boundaries. Soil Evaluation Hand auger soil borings were utilized to identify current soil characteristics and determine the extent of soil suitable for re-establishment, rehabilitation, and enhancement. Hydric indicators typically occur within the upper 18 inches, but selected borings extended to greater than 40 inches in depth to evaluate potential deeper drainage or locate restrictive horizons able to perch a water table. FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 6 of 13 GEORGE K LANKFORD, LLC The current hydrologic condition was evaluated by: • an assessment of the existing drainage modifications (both anthropogenic and natural), • the visible pattern and presentation of soil color and mottles, • existing vegetation and vegetation patterns, • the current water table where observed, • location within the landscape, • soil surface shape and slope impacting flow paths Borings can extend beyond the proposed project boundaries to evaluate the wider range of site conditions. Soils suitable for wetland re-establishment or rehabilitation typically exhibit one or more hydric indicators. These indicators persist and are considered active where hydrology is present and relict where drainage is effective. Under the loss of suitable hydrologic conditions, redevelopment or maintaining visible hydric indicators is difficult. A relict indicator occurs in areas where the historic hydrology has been altered by drainage modifications and land surface disturbances. Hydric indicators are obscured or lost due to long-term drainage conditions, tillage, and other earth work. General conditions and patterns representative of this landscape were observed. Relevant soil characteristics, land management, and current hydrology were noted and modifications that may affect potential hydrologic restoration were evaluated. Representative profiles are described to document the range of characteristics observed (Appendix A). Selected photographs of soils and the landscape are shown in Appendix B. This report describes these findings, conclusions, and recommendation for wetland mitigation at the Swiftie Site. The discussion identifies the observed relevant soil characteristics, current hydrology, and land management with observed modifications that may affect potential hydrologic restoration. Constraints on stream restoration may limit the extent of potential hydrologic restoration shown (property boundaries, hydrologic trespass, design limitations, and constructability). Results and Discussion Landscape Setting This project is in the Southeastern Plains physiographic region (ecoregion level III) and in the Southeastern Floodplains and Low Terraces level IV ecoregion (65p) where the riverine landscapes provide important wildlife corridors and habitat. (USEPA 2003). Streams tend to be large, sluggish rivers and backwaters with ponds, swamps, and oxbow lakes. The low terraces are mostly forested with cropland or pasture occurring in areas that are better drained. Soils are mostly alluvial with terrace deposits of sand, clay, and gravel. Highway 33 to the north is the general divide between this ecoregion and the Rolling Coastal Plain (ecoregion 65m) to the north where the relief, elevation, dissection, and stream gradients are generally greater and the soils tend to be better drained. Geology within the project and surrounding area is sedimentary rocks of the Yorktown Formation. Soil parent material of this geologic formation consists of fossiliferous clay with varying amounts of fine- grained sand, bluish gray, shell material commonly concentrated in lenses. Soil of the project area are derived from these geologic constituents through additional weathering and alluvial deposition. The Soil Survey of Edgecombe County describes this area as nearly level and gently sloping on broad flats and smooth to slightly rounded, low ridges and depressions. Soils are described to range from very poorly drained, poorly drained, and well drained. On the stream terraces, soils have a clayey to sandy subsoil (Soil Survey of Edgecombe County). The dominant soil orders in this MLRA (Southern Coastal Plain - 133A) are Ultisols, Entisols, and Inceptisols (USDA-NRCS 2006). Within the project boundary, soils are mostly mapped as Roanoke, Conetoe and Portsmouth. Soil moisture within this region is sufficiently high year-round in most years for good crop production with poorly drained landscapes developing hydric FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 7 of 13 GEORGE K LANKFORD, LLC indicators. Land use for most of the project area and the contributing watershed is in agricultural row crops with patches of undeveloped forest land. Farm buildings and residential homes are scattered. Site Conditions The project site lies in a depressional landform of an old terrace where it receives hydrology along two distinct drainage features. The area is an old backwater floodplain landscape that is now elevated above the active floodplain of Swift Creek. Currently hydrology sources are a small stream that enters from the northwest and what appears to be extensive areas of groundwater discharge along the toe of slope. Most of the project is underlain by a dense, restrictive clayey subsoil that seasonally perched a water table prior to drainage modifications for agricultural uses. To the north across Highway 33 is a nearly level ridge that is the watershed for a small tributary to Swift Creek (S200) (Figure 2). The S200 tributary begins to the northwest of the project below Highway 33 within a forested headwater valley. There appears to be significant groundwater discharge along portion of the valley edges where shallow ditches have been excavated to intercept runoff and discharge. A second, smaller, forested valley to the east does not support a stream, but areas having groundwater discharge were observed. Wetlands are present within the forested area, but evidence of old fencing suggest that the area was used for livestock prior to regeneration of the trees. To the east is a cultivated field located within a shallow, concave basin. Based on the ditching pattern, groundwater discharge is also occurring along the toe of slope. The wetlands were delineated prior to this field work and reverification by the Corps is anticipated. The wetlands area is entirely within this forested landscape. The cultivated fields are used for row crops where cotton was previously observed). The site has an extensive network of ditches draining both the forested and cultivated landscapes. Larger channels within the project are three to five feet deep. The smaller ditches located along the toe of slope intercept runoff and groundwater discharge, contributing to the low water table and limits hydroperiods. Ditches within the fields are well maintained and vegetation is limited to herbaceous species. Currently most of the flows exit the site to the southeast through an excavated ditch, draining into S300. The S300 stream flows to the floodplain of Swift Creek to the south. The floodplain of Swift Creek contains large areas of wetlands. The historic soil disturbing activities included tree clearing and grubbing, the extensive ditching, and crowning, or contouring to increase runoff to the ditches, along with other activities associated with agricultural operations. These types of disturbances create a more uniform soil surface, smoothing the transitions from higher elevations to lower elevations to improve surface runoff. This activity removes typical landscape features of shallow depressions and hummocks. The observed modifications have resulted in a loss of surface organic content due to increased oxidation of soil carbon, increased soil temperature, and reduce organic inputs. This is easily observed within the cultivated areas. Increased oxidation of organics due to the drainage appears to have resulted in the loss of some hydric indicators and is prevalent along the edges of the historical wetland. This is observed in loss of black color in the surface horizons and absence of redoximorphic features within the tilled/disturbed surface horizon. Site Soils The soils within this project have experienced various impacts due to manipulation and management. The existing wetland adjacent to the cultivated field provides context to interpret potential impacts of cultivation on soil. Relative to the wetland, the surface soils exhibit browner coloration due to loss of organics. Wetland soil have a black surface horizon regardless of surface textures and depressional areas may contain a mucky surface layer. Surface soils in cultivated areas were also found to be compacted and difficult to auger when dry. A few borings along the edges of the hydric soils are underlain by deeper sandy loams or sand, but generally the subsoils consist mostly a dense sandy clay loam or sandy clay that is restrictive. These deeper sandy textures occur near the transition to the better drained soils of Conetoe. This restrictive subsoil can perch a water table, but with the observed drainage modifications it is likely FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 8 of 13 GEORGE K LANKFORD, LLC subject to droughty periods late in the summer and fall once the available water has been transpired. The subsoils are depleted throughout and contain redoximorphic mottles of dark yellowish brown and yellowish-brown iron masses. Project soils are within the observed range of characteristics corresponding to the NRCS mapping unit descriptions of the Roanoke or Rains series. A loamy or sandy surface over a clayey textured subsoil is characteristic of both the Roanoke and Rains soils. Representative soil profiles are shown in Appendix A. The hydric indicators observed are common in concave landforms found on backwaters and depressional areas of the project. Hydric Soil Indicators The most common hydric soil indicators across this site are the A11 – Depleted Below Dark Surface and S7- Dark Surface. All hydric soil profiles recorded meet a dark surface indicator. In addition to these indicators, soil borings exhibited multiple indicators including A9-1-cm muck, A12-Thick Dark Surface, S5- Sandy Redox, F3 - Depleted Matrix, F6 - Redox Dark Surface, and F13 – Umbric Surface. Subsoils below the dark surface often exhibited distinct redoximorphic mottles. The deep dark surfaces observed contain high organic content and required long periods of saturation or inundation for development. Historically shallow depressions and mucky textured surfaces were likely more common prior to cultivation. To form thick black surfaces and mucky layer of these soil indicators suggest this site was historically very wet and contained areas having long term seasonal saturation to semipermanently flooded conditions. Drainage and tillage of soils results in increased aeration of surface horizons, leading to higher soil temperatures that increase microbial oxidation of organic carbon. Cultivation destroys indicators such as the A9, S5, and F6 indicators by destruction of mottles and mixing of thinner layers of organic muck. Historically mucky textured surfaces were likely more common prior to cultivation due to the concave topography of this site. The loss of soil organic material eventually results in a loss of the darker surface color. This loss of organic matter was observed in the black surface color in the wetland areas compared to soils found the field. Current Hydrologic Alterations Historically, the primary hydrology was a high groundwater table due to the nearly level to the concave landscape and the restrictive, clayey subsoil perching a water table. In addition to a small unnamed tributary (S200), the groundwater discharge along the toe of slope maintained a shallow groundwater table in this landform. The extensive network of ditches was constructed to intercept the groundwater and runoff, draining these soils to allow mechanized agriculture. In addition to the ditching, surface smoothing and gentle contouring increase surface runoff. In a natural, undrained condition, soils would have very slow runoff and the low gradient landscape would have supported appropriate conditions for lengthy periods of saturation. Due soils having a moderately low internal drainage (low Ksat), a more extensive ditch network is required to overcome the wetness limitation. Within the cultivated fields, surface modifications include spreading of spoil/fill from the ditch excavation and slight crowning to improve surface runoff from the fields. Potential Hydroperiod for Restored Soils The hydric soils at the site are characteristics of the NRCS Roanoke map unit. This soil forms in conditions supporting long periods of saturation or inundation. Using the US Army Corps of Engineers (2016) mitigation guidance for Common Coastal Plain Soil Series (associated with wetlands), the Roanoke (Typic Endoaquults) is expected to have a natural hydroperiod of between 9 and 12 percent during the growing season where the water table is within 12 inches of the surface (Table 2). Along the edges of the toe of slope soils appear to be most similar to the Rains series. Mitigation guidance for a Rains soil (Typic Paleaquults) is expected to have a natural hydroperiod of between 10 and 12 percent. FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 9 of 13 GEORGE K LANKFORD, LLC After restoration, due to natural variations in local topography and internal drainage of soils in the floodplain, a local hydroperiod slightly higher or lower than this guidance is expected. Areas having slightly higher elevations may experience slightly lower hydroperiods while depressional areas should exceed 16 percent. Localized hydroperiods will depend on surface topography, especially depressional features, the project design approach, and construction practices. Near areas with groundwater discharge, the hydroperiods may also exceed 16 percent depending on the seasonality of the discharge. The final location and elevation of tributary may also significantly influence wetland hydrology and saturation ranges of the surrounding landscape. Areas having existing wetland hydrology may show some increase in hydroperiod, especially near to drainage features and plugged ditches. The surrounding upland soils are not anticipated to have significant increases in hydroperiods. Table 2. Swiftie Mitigation Bank Potential Hydrologic Success Criteria Soil Series Taxonomic Classification Seasonal High Water Table Topographic Slope Setting (down/across) Drainage Classification *Hydroperiod Range Roanoke Typic Endoaquults 0 to 12 inches concave - linear poorly 9-12% Rains Typic Paleaquults 0 to 12 inches linear - linear poorly 10-12% Tomotley (inclusion) Typic Endoaquults 0 to 12 inches concave - linear poorly 10-12% Bibb (inclusion) Typic Fluvaquents 0 to 12 inches concave - linear poorly 12-16% Altavista Aquic Hapludults 18 to 30 inches concave - linear moderately well 6-8% *Hydroperiod follows US Army Corps of Engineers. 2016. Wilmington District Stream and Wetland Compensatory Mitigation Update. North Carolina Interagency Review Team - October 24, 2016. For the first year after construction, it is realistic to expect a shorter hydroperiod within the areas of re- establishment, especially if rainfall patterns are below normal. The deeper soil horizons may take time to become fully saturated and establish a high groundwater table. The potential hydroperiods in the Corps guidance are subject to localized factors related to stream design and frequency of flooding, construction practices, site specific topography, and drainage inputs after construction. Functional Uplift from Hydric Soil Re-establishment The stream and wetland mitigation proposed will restore a seasonally high local groundwater in drained hydric soil, re-establishing a more natural hydrologic cycle and the associated functional uplift. The watershed is primarily agricultural and sylvicultural land use with potential sediments, nutrients, and pollutants entering the Swiftie site. There may be additional pollutants from Highway 33 just upslope of the project boundary. Plugging excavated ditches, removal of spoil, and connecting the stream to the floodplain will restore wetland functions, including the biogeochemical cycling processes across the site. The presence of the existing wetland and drained hydric soil indicates a potential to rapidly restore natural biological processes and chemical transformations of wetland soils. Successful hydrologic restoration at this site will provide functional uplift related to soils that can improve downstream water quality. This project will provide a more functional corridor between the existing stream and wetland complex, riparian buffer, and the project, and the high-quality habitat found the in the Swift Creek floodplain. Re-establishment of the appropriate hydroperiod will restore the important soil processes of oxidation- reduction cycling, improve nutrient and chemical transformations (especially nitrates), and potentially immobilize phosphorus. With re-establishment of an appropriate wetland vegetative community, additional project benefits include protection of soil surfaces, reducing erosion, increase infiltration, and FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 10 of 13 GEORGE K LANKFORD, LLC raise available water capacity. Vegetative cover reduces soil temperatures leading to a slower oxidation of organic matter and cooler water temperature in the stream. The project is expected to increase organic carbon sequestration and improve diversity of beneficial microbial and fungal populations essential for wetland soil health. Healthy microbial populations in fully functioning wetlands mediate many important biogeochemical processes such as biochemical transformations of ammonia, molecular nitrogen, nitrite and nitrate and other complex organic substances. Large scale benefits are peak flood control, diversify and increase wildlife habitat, and provide connectivity of existing natural aquatic communities. The inclusion of the existing wetland communities within the project provides a readily available pool of appropriate soil fungal and microbial species, macroinvertebrates, and seeds while increasing habitat connectivity. Recommendations This site has excellent potential to restore an appropriate hydrology to large areas in this landscape. It provides opportunities for Wetland Re-establishment, Wetland Rehabilitation, and Wetland Enhancement. Practical methods for hydrologic restoration and enhancement would include raising of local ground water table. Plugging/filling the ditch network, removal of spoil berms, creation of a rough surfaces, and the enhancement/creation of small depressions will further enhance the hydrologic cycling. Establishing an appropriate vegetative community will provide many additional benefits such as reducing soil temperatures, stabilization of soils, and enhancing soil microbiological diversity and geochemical process. Based on the soil properties, a general hydroperiod success criterion of 10 to 12 percent may be expected. Where possible, all heavy equipment and construction schedules should be limited to dryer periods or the use of tracked equipment to limit compaction, especially within any existing wetland. In the agricultural fields, shallow ripping to at least 12 inches along the contours is needed to improve infiltration and improve planting survival. The wetland and stream design should promote floodplain and stream connectivity with enhancement of surface storage. Due to the current drainage modifications, it may take up to a year for the site to become completely saturated and reach the target hydroperiods. For at least the first year after construction, in the drained soil it may be reasonable to expect a hydroperiod between 9 and 10 percent, depending on timing of final construction and rainfall patterns (assuming at least average seasonal rainfall, antecedent conditions, and over bank flow frequency). Summary Observations The Swiftie Site is located within a suitable landscape position within the concave backwaters of a floodplain terrace. It supports small, unnamed tributaries and appears to have significant groundwater discharge. A large, contiguous area of hydric soil was delineated. This area contained existing wetlands that is fragmented from the original wetland community. At the project site, stream excavation/incision, and ditching for agricultural have lowered the water table. Within agricultural fields, crowing and surface modification have increased the rates of runoff. Other observed hydrologic modifications include, shallow ditches that improve drainage, spoil berms, and compacted soil surfaces. Drainage appears to be effective due to an extensive network of ditches and surface crowning. The existing wetland abuts the drained hydric soil and is a fragment of the historical wetland that covered this site. The soil surfaces are typically a thicker, very dark gray to black surface with a sandy or loamy texture and high in accumulated organic matter. The most common hydric soil indicators observed are the A11 - Depleted Below Dark Surface and the S7- Dark Surface, with many soil borings exhibited two or more indicators. The surfaces are mostly underlain by a restrictive clayey horizon below 12 inches that extends typically extend greater than 24 inches. Extended periods of saturation or inundation are required for the development for the accumulation of organics that create the dark surfaces. The subsoils have a more FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 11 of 13 GEORGE K LANKFORD, LLC restrictive sandy clay loam or sandy clay that perches a water table. The NRCS soil mapping indicates a high potential for the occurrence of hydric soils in this landscape that includes a hydric Roanoke and Rains with adjacent soils having hydric inclusions. The Swiftie Site will provide a consistent source of hydrology after the removal of the drainage modifications. Potential sources of hydrological include a small tributary and groundwater discharge along the toe of slope. Conclusions At the Swiftie Site, the topographic and landscape setting have a hydric soil appropriate for a successful hydrologic mitigation project. The hydric soil indicators observed across this floodplain reflect historically wet conditions prior to conversion to agricultural use. Stream restoration and other practical drainage modifications can raise the local groundwater. This project can restore lost and degraded aquatic resources. This project can provide significant functional uplift, establish natural habitat, and restore a large historical wetland community. Given the observed hydric soil characteristics within a favorable landscape position, this site is suitable for hydrologic Wetland Re-establishment, Wetland Rehabilitation, and Wetland Enhancement of degraded aquatic resources. Not discussed in this report is the potential for Wetland Preservation along the floodplain of Swift Creek just south of the area discussed and to which this project is hydrologically connected. Based upon this detailed study of soils and current conditions observed at this site, this appears to be a site with appropriate conditions for Wetland Mitigation. This report describes the results of the soil evaluation performed at the Swiftie Site in Edgecombe County, NC. Any subsequent transfer of the report by the user shall be made by transferring the complete report, including figures, maps, appendices, all attachments, and disclaimers. References NTCHS. 2003. Technical Note 13: Altered Hydric Soils. Deliberation of: National Technical Committee for Hydric Soils. Soil Survey Staff. USDA-NRCS. Web Soil Survey. Available online at the following link: https://websoilsurvey.sc.egov.usda.gov/. Accessed [June/2023]. Swanson, Kratz, Caine, and Woodmansee. 1988. Landform Effects on Ecosystem Patterns and Processes. Bioscience -Volume 38: 91-98. U.S. Army Corps of Engineers. 2016. Wilmington District Stream and Wetland Compensatory Mitigation Update. North Carolina Interagency Review Team - October 24, 2016. SAW-2013-00668-PN http://www.saw.usace.army.mil/Missions/RegulatoryPermitProgram/. U.S. Army Corps of Engineers. 2012. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region Version 2.0, ed. J. F. Berkowitz, J. S. Wakeley, R. W. Lichvar, C. V. Noble. ERDC/EL TR-12-9. Vicksburg, MS: U.S. Army Engineer Research and Development Center. USDA-SCS 1985. Soil Survey of Edgecombe County North Carolina. (November 1979). USDA-NRCS. 2006. Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. USDA-NRCS. 2017. Soil Survey Manual 4th Edition. USDA Handbook 18. Soil Survey Division Staff. FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 12 of 13 GEORGE K LANKFORD, LLC USDA-NRCS. 2018. Field Indicators of Hydric Soils in the United States, Version 8.2. L.M. Vasilas, G.W. Hurt, and J.F. Berkowitz (eds.). USDA, NRCS, in cooperation with the National Technical Committee for Hydric Soils Vepraskas, M. J. 1994. Redoximorphic Features for Identifying Aquic Conditions. Tech. Bulletin 301. North Carolina Ag. Research Service, North Carolina State Univ., Raleigh, North Carolina. USEPA. 2000. Principles for the Ecological Restoration of Aquatic Resources. EPA841-F-00-003. Office of Water (4501F). United States Environmental Protection Agency. Washington, DC. 4 pp. (https://www.epa.gov/wetlands/principles-wetland-restoration). USEPA. 2002. Ecoregions of North Carolina. G. E. Griffith et. al. EPA, USDA, NRCS Regional collaborative. Available online at https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-state. August 31, 2002. FINAL - Detailed Hydric Soils Study – Swiftie Mitigation Bank July 2023 Page 13 of 13 GEORGE K LANKFORD, LLC FIGURES APPENDICES Appendix A Soil Boring Log Appendix B Photos Appendix C NRCS Web Soil Survey Report SCALE 1:24000 0 1000 2000 3000 4000 Feet 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Miles (C) Copyright 2016, Trimble Navigation Limited, OpenStreetMap contributors Declination MN 9.89° WGN 1.52° W  MNGN Legend Project Area - Proposed Easement Map Name: DRAUGHN Scale: 1 inch = 2,000 ft.Base Map Scale: 24,000 Figure 1. USGS Vicinity Map Swiftie Mitigation Bank Edgecombe County, NC Prepared for Water and Land Solutions SCALE 1:3000 0 1000 Feet 0.0 0.1 0.2 Miles 5 01 5 06 5 12 5 16 5 20 5 17 5 47 5 101 5 102 5 103-B 5 182 5 183 5 184 Yj Yj YjYj Yj Yj Yj YjYj Yj Yj Yj Yj S200 WA WA HS HS (C) Copyright 2016, Trimble Navigation Limited, OpenStreetMap contributors NE SESW NW N E S W LEGEND Proposed Easement Stream Ditch Wetland Jurisdictional Potential Wetland Reestablishement p Groundwater Discharge Area (potentia 5 Soil Boring-Profile Scale: 1 inch = 250 ft.Horizontal Datum: WGS84 Figure 2. Project Aerial Overview Swiftie Mitigation Bank Edgecombe County, NC Produced for Water and Land Solutions SCALE 1:3000 0 1000 Feet 0.0 0.1 0.2 Miles 402403 407 408 414 415 499 4100 4103 4105 41064107410841094110 4111 4116 41174118 41214122 4124 41254126 4127 4128413041314132 4134413541364139 4142 41434144 4146 414841494151 415241534154 4156 4157 4159 41614162 4163 4164 41664167 4168 4170 4171 4173 41744175417641774178 4179 41804181 422 423 425 426 427 428429 430 434 441 442 445 446 448 450 451 452 453454 455 456457 459 460 461 463 464 465 466 468 469 470 471 473 475 476 477 478 481 482 705 709710 711 713 7104 71127113 7114 7115 71197120 7123 71297133 7137 7138 7140 7141 7145 7147 7150 7155 7158 7160 7165 7169 7172 718 719 721 724735 736 737 738 739 740 743 744 749 758 762 767 772 774 779 780 784 5 01 5 06 5 12 5 16 5 20 5 17 5 47 5 101 5 102 5 103-B 5 182 5 183 5 184 Yj Yj YjYj Yj Yj Yj YjYj Yj Yj Yj Yj S200 WA WA HS HS (C) Copyright 2016, Trimble Navigation Limited, OpenStreetMap contributors NE SESW NW N E S W LEGEND Proposed Easement Stream Ditch Wetland Jurisdictional Potential Wetland Reestablishement p Groundwater Discharge Area (potentia 5 Soil Boring-Profile 4 Soil Boring-Hydric 7 Soil Boring-Non-Hydric Scale: 1 inch = 250 ft.Horizontal Datum: WGS84 Figure 3. Soil Boring Locations Swiftie Mitigation Bank Edgecombe County, NC Produced for Water and Land Solutions Appendix A Swiftie Mitigation Bank, Edgecombe County NC Soil Boring Descriptions Appendix A Page 1 of 3 June 2023 Representative Soil Profiles at the Swiftie Mitigation Bank Site (Grouped by map unit) Depth (inches) Color Mottle Percentage (Location*) Texture** Notes Matrix Mottle SB 01 - (HS 1) July 26, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface S7- Dark Surface 0-4 10 YR 3/1 LS low organic content due to drainage& tillage 4-8 10 YR 3/1 LS 8-14 10 YR 5/1 10 YR 3/2 20% (PL) LS 14-18 10 YR 5/1 SL no redox features observed 18-22 10 YR 5/1 10 YR 4/6 25% (PL) SL SB 06 - (HS 1) July 26, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface S7- Dark Surface 0-11 10 YR 3/1 LS 11-14 10 YR 4/1 10 YR 5/2 20% (PL) LS 14-18 10 YR 5/2 10 YR 4/1 20% (PL) LS 18-21 10 YR 5/2 10 YR 4/1 10 YR 4/6 20% (PL) 5% (PL) SCL SB 12 - (HS 1) July 26, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface S7- Dark Surface 0-11 10 YR 3/1 LS plow layer 11-16 10 YR 4/1 LS 16-20 10 YR 5/2 10 YR 5/8 5% (PL) SCL 20-24 10 YR 5/2 10 YR 5/8 20% (PL) SC SB 16 - (HS 1) July 26, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface S7- Dark Surface 0-16 10 YR 3/1 LS 16-25 10 YR 5/2 10 YR 4/6 10% (PL) SCL SB 17 - (HS 1) July 26, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface S7- Dark Surface 0-9 10 YR 3/1 LS 9-19 10 YR 5/2 10 YR 3/1 10% (PL) LS 19-25 10 YR 4/1 10 YR 4/4 15% (PL) SC Appendix A Swiftie Mitigation Bank, Edgecombe County NC Soil Boring Descriptions Appendix A Page 2 of 3 June 2023 Representative Soil Profiles at the Swiftie Mitigation Bank Site (Grouped by map unit) Depth (inches) Color Mottle Percentage (Location*) Texture** Notes Matrix Mottle SB 20 - (HS 1) July 26, 2023 Hydric Indicators WT Not observed A12-Thick Dark Surface S7- Dark Surface 0-14 10 YR 3/1 LS 14-18 10 YR 5/1 10 YR 4/2 15% (PL) SL SB 47 - (Wetland) July 26, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface F3-Depleted Matrix 0-3 10 YR 2/1 L 3-11 10 YR 5/2 10 YR 4/4 5% (PL) SL 11-21 10 YR 6/1 10 YR 5/8 20% (M) SCL restrictive SB 101 - (WA) March 1, 2023 Hydric Indicators WT -9" A12-Thick Dark Surface S7- Dark Surface 0-3 10 YR 2/1 SL 3-14 10 YR 3/1 LS 14-25 10 YR 4/1 10 YR 3/3 10% (PL) S SB 102 - (HS 1) March 1, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface (relict) S5-Sandy Redox S7- Dark Surface (relict) 0-4 10 YR 3/2 LS 4-7 10 YR 3/2 10 YR 3/4 5% (PL) LS 7-12 10 YR 4/1 10 YR 3/4 2% (PL) LS 12-24 10 YR 5/6 SC SB 103B - (HS 1) (in field) April 12, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface (relict) F3-Depleted Matrix 0-6 10 YR 3/2 10 YR 4/6 3% (PL) SL 6-14 10 YR 4/1 10 YR 5/8 5% (PL) SL 14-21 10 YR 5/1 10 YR 5/8 10% (PL) SL SB 182 - (HS 1) (in field) April 25, 2023 Hydric Indicators WT Not observed A11-Depleted Below Dark Surface F3-Depleted Matrix 0-10 10 YR 2/1 SL 10-17 10 YR 4/1 10 YR 4/6 5% (PL) SC restrictive 17-27 10 YR 4/1 10 YR 5/6 10 YR 5/1 8% (PL) 5% (PL) SC restrictive Appendix A Swiftie Mitigation Bank, Edgecombe County NC Soil Boring Descriptions Appendix A Page 3 of 3 June 2023 Representative Soil Profiles at the Swiftie Mitigation Bank Site (Grouped by map unit) Depth (inches) Color Mottle Percentage (Location*) Texture** Notes Matrix Mottle SB 183 - (HS 1) (in field) April 25, 2023 Hydric Indicators WT Not observed A12-Thick Dark Surface F6-Redox Dark Surface 0-8 10 YR 3/1 LS 8-18 10 YR 3/1 10 YR 5/6 4% (PL) SC restrictive 18-30 10 YR 3/1 10 YR 4/6 8% (PL) SC restrictive-massive structure SB 184 - (WA) (forested) April 25, 2023 Hydric Indicators WT -29" A9-1 cm muck A12-Thick Dark Surface F13- Umbric Surface 0-1 10 YR 2/1 muck 1-5 10 YR 3/1 SL 5-10 10 YR 2/1 SL 10-30 10 YR 2/1 10 YR 4/6 10 YR 5/1 15% (PL) 15% (PL) SCL »Indicators valid for NRCS Land Resource Region 136 (Southern Piedmont) and Land Resource Region P. WT = observed apparent water table *PL =pore lining, M = matrix, UCSG = uncoated sand grains **Texture (follows USDA textural classification) S = sand, L = loam, Si = silt, C = clay f = fine, c = coarse (textural modifiers for sandy soils) Soil Scientist Seal Appendix B Swiftie Mitigation Bank Site – Edgecombe County, NC Photo Log April 2023 B-1 GEORGE K LANKFORD, LLC 1. Hydric profile (wetland WA). Meets A11-Depleted Below Dark Surface the and F3-Depleted Matrix indicators. SB#47. 2. Landscape looking across wetland toward field below Highway 33. SB#47. 9 Appendix B Swiftie Mitigation Bank Site – Edgecombe County, NC Photo Log April 2023 B-2 GEORGE K LANKFORD, LLC 3. Hydric profile (wetland WA). Meets the A12-Thick Dark Surface and S7- Dark Surface indicators. SB#101. 4. Landscape looking across floodplain toward UT S200. SB#101. Appendix B Swiftie Mitigation Bank Site – Edgecombe County, NC Photo Log April 2023 B-3 GEORGE K LANKFORD, LLC 5. Hydric profile. Meets A12-Thick Dark Surface and F6-Redox Dark Surface indicators. SB#183. 6. Landscape facing across field south toward Swift Creek. Ditch located at near line of trees. SB#183. Soil Map—Edgecombe County, North Carolina (Swiftie Mitigation Bank) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/13/2023 Page 1 of 3 39 8 5 6 0 0 39 8 6 0 0 0 39 8 6 4 0 0 39 8 6 8 0 0 39 8 7 2 0 0 39 8 7 6 0 0 39 8 8 0 0 0 39 8 5 6 0 0 39 8 6 0 0 0 39 8 6 4 0 0 39 8 6 8 0 0 39 8 7 2 0 0 39 8 7 6 0 0 263700 264100 264500 264900 265300 265700 266100 266500 266900 267300 263700 264100 264500 264900 265300 265700 266100 266500 266900 267300 36° 0' 28'' N 77 ° 3 7 ' 1 9 ' ' W 36° 0' 28'' N 77 ° 3 4 ' 4 8 ' ' W 35° 59' 9'' N 77 ° 3 7 ' 1 9 ' ' W 35° 59' 9'' N 77 ° 3 4 ' 4 8 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 500 1000 2000 3000 Feet 0 250 500 1000 1500 Meters Map Scale: 1:17,300 if printed on A landscape (11" x 8.5") sheet. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:20,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Edgecombe County, North Carolina Survey Area Data: Version 20, Sep 8, 2022 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: May 9, 2022—Jun 5, 2022 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—Edgecombe County, North Carolina (Swiftie Mitigation Bank) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/13/2023 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI AaA Altavista fine sandy loam, 0 to 3 percent slopes 145.2 10.9% Ba Ballahack fine sandy loam 14.9 1.1% BB Bibb soils 5.5 0.4% Ca Cape Fear loam 3.6 0.3% Cc Chewacla silt loam 33.0 2.5% CeB Conetoe loamy sand, 0 to 4 percent slopes 66.4 5.0% DgA Dogue fine sandy loam, 0 to 3 percent slopes 122.5 9.2% GoA Goldsboro fine sandy loam, 0 to 2 percent slopes 32.6 2.4% LyA Lynchburg fine sandy loam, 0 to 2 percent slopes, Southern Coastal Plain 12.1 0.9% NoA Norfolk loamy sand, 0 to 2 percent slopes 18.7 1.4% NoB Norfolk loamy sand, 2 to 6 percent slopes 11.6 0.9% RaA Rains fine sandy loam, 0 to 2 percent slopes, Southern Coastal Plain 24.3 1.8% Ro Roanoke loam 360.2 27.0% StB State loamy sand, 0 to 4 percent slopes 44.9 3.4% TaB Tarboro loamy sand, 0 to 6 percent slopes 236.0 17.7% W Water 4.6 0.3% WaB Wagram loamy sand, 0 to 6 percent slopes 97.0 7.3% We Wahee fine sandy loam 31.4 2.4% Wh Wehadkee silt loam 41.7 3.1% WkB Wickham sandy loam, 0 to 4 percent slopes 28.6 2.1% Totals for Area of Interest 1,334.8 100.0% Soil Map—Edgecombe County, North Carolina Swiftie Mitigation Bank Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/13/2023 Page 3 of 3 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 -50 -40 -30 -20 -10 0 3/ 8 / 2 0 2 3 3/ 1 5 / 2 0 2 3 3/ 2 2 / 2 0 2 3 3/ 2 9 / 2 0 2 3 4/ 5 / 2 0 2 3 4/ 1 2 / 2 0 2 3 4/ 1 9 / 2 0 2 3 4/ 2 6 / 2 0 2 3 5/ 3 / 2 0 2 3 5/ 1 0 / 2 0 2 3 5/ 1 7 / 2 0 2 3 5/ 2 4 / 2 0 2 3 5/ 3 1 / 2 0 2 3 6/ 7 / 2 0 2 3 6/ 1 4 / 2 0 2 3 6/ 2 1 / 2 0 2 3 6/ 2 8 / 2 0 2 3 7/ 5 / 2 0 2 3 Da i l y R a i n f a l l ( i n c h e s ) Gr o u n d w a t e r D e p t h ( i n c h e s ) Swiftie GW-1 Daily Rainfall Groundwater Depth Ground Level 12" Below Surface Maximum Consecutive Hydroperiod 1 days, 0.4% of Growing Season 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 -30 -25 -20 -15 -10 -5 0 5 3/ 8 / 2 0 2 3 3/ 1 5 / 2 0 2 3 3/ 2 2 / 2 0 2 3 3/ 2 9 / 2 0 2 3 4/ 5 / 2 0 2 3 4/ 1 2 / 2 0 2 3 4/ 1 9 / 2 0 2 3 4/ 2 6 / 2 0 2 3 5/ 3 / 2 0 2 3 5/ 1 0 / 2 0 2 3 5/ 1 7 / 2 0 2 3 5/ 2 4 / 2 0 2 3 5/ 3 1 / 2 0 2 3 6/ 7 / 2 0 2 3 6/ 1 4 / 2 0 2 3 6/ 2 1 / 2 0 2 3 6/ 2 8 / 2 0 2 3 7/ 5 / 2 0 2 3 Da i l y R a i n f a l l ( i n c h e s ) Gr o u n d w a t e r D e p t h ( i n c h e s ) Swiftie GW-2 Daily Rainfall Groundwater Depth Ground Level 12" Below Surface Maximum Consecutive Hydroperiod 68 days, 26.7% of Growing Season 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 -30 -25 -20 -15 -10 -5 0 5 3/ 8 / 2 0 2 3 3/ 1 5 / 2 0 2 3 3/ 2 2 / 2 0 2 3 3/ 2 9 / 2 0 2 3 4/ 5 / 2 0 2 3 4/ 1 2 / 2 0 2 3 4/ 1 9 / 2 0 2 3 4/ 2 6 / 2 0 2 3 5/ 3 / 2 0 2 3 5/ 1 0 / 2 0 2 3 5/ 1 7 / 2 0 2 3 5/ 2 4 / 2 0 2 3 5/ 3 1 / 2 0 2 3 6/ 7 / 2 0 2 3 6/ 1 4 / 2 0 2 3 6/ 2 1 / 2 0 2 3 6/ 2 8 / 2 0 2 3 7/ 5 / 2 0 2 3 Da i l y R a i n f a l l ( i n c h e s ) Gr o u n d w a t e r D e p t h ( i n c h e s ) Swiftie GW-3 Daily Rainfall Groundwater Depth Ground Level 12" Below Surface Maximum Consecutive Hydroperiod 20 days, 7.8% of Growing Season 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 -25 -20 -15 -10 -5 0 5 10 15 3/ 8 / 2 0 2 3 3/ 1 5 / 2 0 2 3 3/ 2 2 / 2 0 2 3 3/ 2 9 / 2 0 2 3 4/ 5 / 2 0 2 3 4/ 1 2 / 2 0 2 3 4/ 1 9 / 2 0 2 3 4/ 2 6 / 2 0 2 3 5/ 3 / 2 0 2 3 5/ 1 0 / 2 0 2 3 5/ 1 7 / 2 0 2 3 5/ 2 4 / 2 0 2 3 5/ 3 1 / 2 0 2 3 6/ 7 / 2 0 2 3 6/ 1 4 / 2 0 2 3 6/ 2 1 / 2 0 2 3 6/ 2 8 / 2 0 2 3 7/ 5 / 2 0 2 3 Da i l y R a i n f a l l ( i n c h e s ) Gr o u n d w a t e r D e p t h ( i n c h e s ) Swiftie GW-4 Daily Rainfall Groundwater Depth Ground Level 12" Below Surface Maximum Consecutive Hydroperiod 22 days, 8.6% of Growing Season 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 -30 -25 -20 -15 -10 -5 0 5 3/ 8 / 2 0 2 3 3/ 1 5 / 2 0 2 3 3/ 2 2 / 2 0 2 3 3/ 2 9 / 2 0 2 3 4/ 5 / 2 0 2 3 4/ 1 2 / 2 0 2 3 4/ 1 9 / 2 0 2 3 4/ 2 6 / 2 0 2 3 5/ 3 / 2 0 2 3 5/ 1 0 / 2 0 2 3 5/ 1 7 / 2 0 2 3 5/ 2 4 / 2 0 2 3 5/ 3 1 / 2 0 2 3 6/ 7 / 2 0 2 3 6/ 1 4 / 2 0 2 3 6/ 2 1 / 2 0 2 3 6/ 2 8 / 2 0 2 3 7/ 5 / 2 0 2 3 Da i l y R a i n f a l l ( i n c h e s ) Gr o u n d w a t e r D e p t h ( i n c h e s ) Swiftie GW-5 Daily Rainfall Groundwater Depth Ground Level 12" Below Surface Maximum Consecutive Hydroperiod 5 days, 1% of Growing Season !. !. !. !. !. 33 W01 W02 W03 W04 W05 S300 S6 0 0 Swift Cr e e k S500 S400 S20 0 S10 0 GW-4 GW-5GW-3 GW-2 GW-1 FigureXPre-existing Monitoring Well Locations Date: 8/31/2023 Approximate Project Boundary Parcel Boundary Existing Roads !.Pre-Restoration Wells Existing Stream Existing Ditches Wetland Mitigation Existing Wetland Existing Hydric Soil Open Water Feature ´0 750 1,500375 Feet 1 inch = 750 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina RIVERMORPH PROFILE SUMMARY ---------------------------------------------------------------------- River Name: Hornpipe Branch Reach Name: South Reference Reach Profile Name: South RefReach Long Pro Survey Date: 01/08/2020 ---------------------------------------------------------------------- Survey Data DIST CH WS BKF P1 P2 P3 P4 ---------------------------------------------------------------------- 0 94.63 3 93.65 4.9 94.65 7.3 93.69 11.4 93.75 16 93.85 19.5 93.45 26 93.85 32 94.2 36 94.23 42 93.6 50 93.55 57 93.95 64 93.8 66.7 93.1 69 93.55 73 92.65 79 92.51 84 92.8 90 93.05 100 92.85 105 92.8 106 92.55 109.5 92.71 113 92.68 120 92.8 123 92.79 123.5 92.3 125 92.8 127 92.76 131 92 139 92.58 148 92.5 158 92.3 164 92.2 168 92.81 172 91.9 176.5 91.37 180 90.55 189 91 193 91.4 198 91.53 Cross Section / Bank Profile Locations Name Type Profile Station ---------------------------------------------------------------------- XS @ STA 100.8 Riffle XS 100.8 Measurements from Graph Bankfull Slope: 0 Variable Min Avg Max ---------------------------------------------------------------------- S riffle 0 0 0 S pool 0 0 0 S run 0 0 0 S glide 0 0 0 S step 0 0 0 P - P 0 0 0 Pool length 0 0 0 Riffle length 0 0 0 Dmax riffle 0 0 0 Dmax pool 0 0 0 Dmax run 0 0 0 Dmax glide 0 0 0 Dmax step 0 0 0 Low bank ht 0 0 0 Length and depth measurements in feet, slopes in ft/ft. RIVERMORPH PROFILE SUMMARY Notes ---------------------------------------------------------------------- River Name: Hornpipe Branch Reach Name: South Reference Reach Profile Name: South RefReach Long Pro Survey Date: 01/08/2020 DIST Note ---------------------------------------------------------------------- 3 TW# max p 4.9 log inv 7.3 TW# max p 11.4 TOP RIF 16 END RIF 19.5 TW# max p 26 Top RIF 32 TW# 36 step 42 TOP RIF 50 TW# 57 END RIF 64 TW# 66.7 TW# max p 69 TOP RIF 73 TW# pool 79 TW# pool 84 TW# 90 TOP RIF 100 TW# rif 105 END RIF 106 TW# max pool 109.5 TW# 113 TW# 120 TW# 123 END RIF 123.5 TW# max pool 125 TOP RIF 127 END RIF 131 TW# max pool 139 TOP RIF 148 158 164 168 172 176.5 180 189 193 198 TW# riff TW# TW# step/head pool TW# TW# max pool TW# TW 8.42 TOP RIF END RIF RIVERMORPH CROSS SECTION SUMMARY ---------------------------------------------------------------------- River Name:Hornpipe Branch Reach Name:South Reference Reach Cross Section Name: XS @ STA 100.8 Survey Date: 01/08/2020 ---------------------------------------------------------------------- Cross Section Data Entry BM Elevation:50 ft Backsight Rod Reading: 50 ft TAPE FS ELEV NOTE ---------------------------------------------------------------------- 0 4.21 95.79 LEP 6 5.22 94.78 14 5.55 94.45 19 6.15 93.85 26 6.31 93.69 28 6.35 93.65 31 6.36 93.64 31.5 6.8 93.2 32.5 7 93 33.5 6.8 93.2 34.3 6.4 93.6 36.5 5.8 94.2 high spot between braided channel 39.3 6.2 93.8 41 6.5 93.5 BKF - LB 41.9 6.95 93.05 LEC 43 7.03 92.97 TW 44 6.73 93.27 REC 44.9 6.33 93.67 RB 47 5.95 94.05 FP 51 5.35 94.65 60 4.45 95.55 65 4.22 95.78 REP ---------------------------------------------------------------------- Cross Sectional Geometry ---------------------------------------------------------------------- Channel Left Right Floodprone Elevation (ft) 94.03 94.03 94.03 Bankfull Elevation (ft) 93.5 93.5 93.5 Floodprone Width (ft) 27.58 ----- ----- Bankfull Width (ft) 6.46 3.23 10.13 Entrenchment Ratio 4.27 ----- ----- Mean Depth (ft)0.33 0.32 0.34 Maximum Depth (ft)0.53 0.5 0.53 Width/Depth Ratio 19.58 10.09 29.79 Bankfull Area (sq ft) 2.12 0.94 1.18 Wetted Perimeter (ft) 6.88 3.16 3.72 Hydraulic Radius (ft) 0.31 0.3 0.32 Begin BKF Station 31.16 31.16 41 End BKF Station 44.52 34.1 44.52 South Ref Reach Long Pro CH WS BKF P1 P2 P3 P4 El e v a t i o n ( f t ) Distance along stream (ft) 90 91 92 93 94 95 0 50 100 150 200 XS @ S T A 1 0 0 . 8 SOUTH REF REACH XS @ STA 100.8 Ground Points Bankfull Indicators Water Surface Points El e v a t i o n ( f t ) Horizontal Distance (ft) 92.0 95.3 15.0 58.6 Wbkf = 6.46 Dbkf = .33 Abkf = 2.12 reach 0.98 ---222.5 (40.4 channel widths)--------- riffle 2.35 (1.8 - 2.9) 2.4 (1.8 - 3)-16.2 (8 - 23)2.7 (1.5 - 4.2)------ pool 0.2 (0 - 3.2)0.2 (0 - 3.3)13.0 (11 - 17)2.4 (2 - 3.1)19.0 (14 - 25) 3.5 (2.5 - 4.5) run 1.3 (2.3 - 5.5) 1.3 (2.3 - 5.6 7.0 (4 - 8)1.3 (0.7 - 1.5)------ glide 1.2 (0.7 - 2.1) 1.2 (0.7 - 2.1 9.0 (5 - 11)1.6 (0.9 - 2)------ p-p ratiopool-pool spacing (ft)slope (%)slope ratio length (ft)length ratio 193.186.546.4 58 59 60 61 62 63 64 65 0 25 50 75 100 125 150 175 200 225 Channel Distance (ft) Turtle Creek: S300 Ref Reach - Longitudinal Profile bed water srf bankfull x-section riffle crest pool run glide LTB RTB c Meander Pattern - Channel Plan Form Dimensions (ft) Ratios Bankfull Width: 5.5 Sinuosity: 1.2 Meander Length: 32 (24 - 39 ) Meander Length Ratio: 5.8 (4.4 - 7.1 ) Belt Width: 16 (13 - 19 ) Meander Width Ratio: 2.9 (2.4 - 3.5 ) Radius of Curvature: 11 (7 - 17 )Radius / BkF Width: 2 (1.3 - 3.1 ) 434360 434380 434400 434420 434440 434460 434480 434500 434520 434540 2424860 2424880 2424900 2424920 2424940 2424960 2424980 2425000 2425020 No r t h S o u t h D i s t a n c e East West Distance 18% 9% 14% 24% 22% 13% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Type D16 0.062 mean 0.2 silt/clay 18% D35 0.19 dispersion 4.0 sand 82% D50 0.32 skewness -0.12 gravel 0% D65 0.5 cobble 0% D84 0.91 boulder 0% D95 1.5 Size (mm) Size Distribution silt/clay sand gravel cobble boulder 0% 5% 10% 15% 20% 25% 30% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.01 0.1 1 10 100 1000 10000 we i g h t e d p e r c e n t o f p a r t i c l e s i n r a n g e pe r c e n t f i n e r t h a n particle size (mm) Weighted pebble count by bed features S300 Ref Reach weighted percent Riffle Pool Run Glide # of particles 70% riffle 30% pool Cross Section XSP1 Bankfull Dimensions Flood Dimensions Materials 7.5 x-section area (ft.sq.)33.0 W flood prone area (ft)0.33 D50 Bed (mm) 8.3 width (ft)4.0 entrenchment ratio 0.85 D84 Bed (mm) 0.9 mean depth (ft)1.5 low bank height (ft)24 threshold grain size (mm): 1.5 max depth (ft) 1.0 low bank height ratio 9.1 wetted parimeter (ft) 0.8 hyd radi (ft) 9.1 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 1.8 velocity (ft/s)0.070 Manning's roughness 0.94 channel slope (%) 13.5 discharge rate (cfs)0.61 D'Arcy-Weisbach fric.0.48 shear stress (lb/sq.ft.) 0.35 Froude number 17.6 resistance factor u/u*0.50 shear velocity (ft/s) 324.1 relative roughness 0.96 unit strm power (lb/ft/s) 60 61 62 63 64 65 0 5 10 15 20 25 30 35 40 El e v a t i o n ( f t ) Width (ft) 0 + 85 S300 Ref Reach, pool Cross Section XSR1 Bankfull Dimensions Flood Dimensions Materials 2.9 x-section area (ft.sq.)8.8 W flood prone area (ft)0.33 D50 Bed (mm) 5.6 width (ft)1.6 entrenchment ratio 0.85 D84 Bed (mm) 0.5 mean depth (ft)0.9 low bank height (ft)15 threshold grain size (mm): 0.9 max depth (ft) 1.0 low bank height ratio 6.0 wetted parimeter (ft) 0.5 hyd radi (ft) 11.0 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 1.3 velocity (ft/s)0.070 Manning's roughness 0.98 channel slope (%) 3.8 discharge rate (cfs)0.72 D'Arcy-Weisbach fric.0.30 shear stress (lb/sq.ft.) 0.33 Froude number 16.2 resistance factor u/u*0.39 shear velocity (ft/s) 184.4 relative roughness 0.41 unit strm power (lb/ft/s) 58 59 60 61 62 63 64 65 0 5 10 15 20 25 30 35 40 El e v a t i o n ( f t ) Width (ft) 1 + 93 S300 Ref Reach, riffle Elevation (ft) Cross Section XSR2 Bankfull Dimensions Flood Dimensions Materials 4.7 x-section area (ft.sq.)19.6 W flood prone area (ft)0.33 D50 Bed (mm) 5.3 width (ft)3.7 entrenchment ratio 0.85 D84 Bed (mm) 0.9 mean depth (ft)1.3 low bank height (ft)22 threshold grain size (mm): 1.3 max depth (ft) 1.0 low bank height ratio 6.1 wetted parimeter (ft) 0.8 hyd radi (ft) 5.9 width-depth ratio Bankfull Flow Flow Resistance Forces & Power 1.7 velocity (ft/s)0.070 Manning's roughness 0.94 channel slope (%) 8.1 discharge rate (cfs)0.62 D'Arcy-Weisbach fric.0.45 shear stress (lb/sq.ft.) 0.35 Froude number 17.3 resistance factor u/u*0.48 shear velocity (ft/s) 320.1 relative roughness 0.91 unit strm power (lb/ft/s) 60 61 62 63 64 65 66 0 5 10 15 20 25 30 El e v a t i o n ( f t ) Width (ft) 0 + 50 S300 Ref Reach, riffle 0 0.5 1 1.5 2 2.5 3 6/ 1 8 / 2 0 1 9 6/ 2 0 / 2 0 1 9 6/ 2 2 / 2 0 1 9 6/ 2 4 / 2 0 1 9 6/ 2 6 / 2 0 1 9 6/ 2 8 / 2 0 1 9 6/ 3 0 / 2 0 1 9 7/ 2 / 2 0 1 9 7/ 4 / 2 0 1 9 7/ 6 / 2 0 1 9 7/ 8 / 2 0 1 9 7/ 1 0 / 2 0 1 9 7/ 1 2 / 2 0 1 9 7/ 1 4 / 2 0 1 9 7/ 1 6 / 2 0 1 9 7/ 1 8 / 2 0 1 9 7/ 2 0 / 2 0 1 9 7/ 2 2 / 2 0 1 9 7/ 2 4 / 2 0 1 9 7/ 2 6 / 2 0 1 9 7/ 2 8 / 2 0 1 9 7/ 3 0 / 2 0 1 9 8/ 1 / 2 0 1 9 8/ 3 / 2 0 1 9 8/ 5 / 2 0 1 9 8/ 7 / 2 0 1 9 8/ 9 / 2 0 1 9 Ra i n f a l l ( i n c h e s ) Daily Rainfall -Cherry Research Station 0 0.2 0.4 0.60.8 1 1.2 1.4 1.61.8 6/ 1 8 / 2 0 1 9 6/ 2 0 / 2 0 1 9 6/ 2 2 / 2 0 1 9 6/ 2 4 / 2 0 1 9 6/ 2 6 / 2 0 1 9 6/ 2 8 / 2 0 1 9 6/ 3 0 / 2 0 1 9 7/ 2 / 2 0 1 9 7/ 4 / 2 0 1 9 7/ 6 / 2 0 1 9 7/ 8 / 2 0 1 9 7/ 1 0 / 2 0 1 9 7/ 1 2 / 2 0 1 9 7/ 1 4 / 2 0 1 9 7/ 1 6 / 2 0 1 9 7/ 1 8 / 2 0 1 9 7/ 2 0 / 2 0 1 9 7/ 2 2 / 2 0 1 9 7/ 2 4 / 2 0 1 9 7/ 2 6 / 2 0 1 9 7/ 2 8 / 2 0 1 9 7/ 3 0 / 2 0 1 9 8/ 1 / 2 0 1 9 8/ 3 / 2 0 1 9 8/ 5 / 2 0 1 9 8/ 7 / 2 0 1 9 8/ 9 / 2 0 1 9 Wa t e r D e p t h ( f e e t ) Hollowell -Flow Gage 1 (HF1) Water Depth (feet)Thalweg -0.5 0 0.5 1 1.5 2 2.5 3 6/ 1 8 / 2 0 1 9 6/ 2 0 / 2 0 1 9 6/ 2 2 / 2 0 1 9 6/ 2 4 / 2 0 1 9 6/ 2 6 / 2 0 1 9 6/ 2 8 / 2 0 1 9 6/ 3 0 / 2 0 1 9 7/ 2 / 2 0 1 9 7/ 4 / 2 0 1 9 7/ 6 / 2 0 1 9 7/ 8 / 2 0 1 9 7/ 1 0 / 2 0 1 9 7/ 1 2 / 2 0 1 9 7/ 1 4 / 2 0 1 9 7/ 1 6 / 2 0 1 9 7/ 1 8 / 2 0 1 9 7/ 2 0 / 2 0 1 9 7/ 2 2 / 2 0 1 9 7/ 2 4 / 2 0 1 9 7/ 2 6 / 2 0 1 9 7/ 2 8 / 2 0 1 9 7/ 3 0 / 2 0 1 9 8/ 1 / 2 0 1 9 8/ 3 / 2 0 1 9 8/ 5 / 2 0 1 9 8/ 7 / 2 0 1 9 8/ 9 / 2 0 1 9 Wa t e r D e p t h ( f e e t ) Hollowell - Flow Gage 2 (HF2) Thalweg Water Depth (feet) Referance Wetland Data- Hollowell -35 -30 -25 -20 -15 -10 -5 0 6/ 1 8 / 2 0 1 9 6/ 2 0 / 2 0 1 9 6/ 2 2 / 2 0 1 9 6/ 2 4 / 2 0 1 9 6/ 2 6 / 2 0 1 9 6/ 2 8 / 2 0 1 9 6/ 3 0 / 2 0 1 9 7/ 2 / 2 0 1 9 7/ 4 / 2 0 1 9 7/ 6 / 2 0 1 9 7/ 8 / 2 0 1 9 7/ 1 0 / 2 0 1 9 7/ 1 2 / 2 0 1 9 7/ 1 4 / 2 0 1 9 7/ 1 6 / 2 0 1 9 7/ 1 8 / 2 0 1 9 7/ 2 0 / 2 0 1 9 7/ 2 2 / 2 0 1 9 7/ 2 4 / 2 0 1 9 7/ 2 6 / 2 0 1 9 7/ 2 8 / 2 0 1 9 7/ 3 0 / 2 0 1 9 8/ 1 / 2 0 1 9 8/ 3 / 2 0 1 9 8/ 5 / 2 0 1 9 8/ 7 / 2 0 1 9 8/ 9 / 2 0 1 9 Gr o u n d w a t e r D e p t h ( i n c h e s ) Hollowell - Groundwater Gage 1 (HW1) Groundwater Depth (inches)Ground Level Cutoff -14 -12 -10 -8 -6 -4 -2 0 6/ 1 8 / 2 0 1 9 6/ 2 0 / 2 0 1 9 6/ 2 2 / 2 0 1 9 6/ 2 4 / 2 0 1 9 6/ 2 6 / 2 0 1 9 6/ 2 8 / 2 0 1 9 6/ 3 0 / 2 0 1 9 7/ 2 / 2 0 1 9 7/ 4 / 2 0 1 9 7/ 6 / 2 0 1 9 7/ 8 / 2 0 1 9 7/ 1 0 / 2 0 1 9 7/ 1 2 / 2 0 1 9 7/ 1 4 / 2 0 1 9 7/ 1 6 / 2 0 1 9 7/ 1 8 / 2 0 1 9 7/ 2 0 / 2 0 1 9 7/ 2 2 / 2 0 1 9 7/ 2 4 / 2 0 1 9 7/ 2 6 / 2 0 1 9 7/ 2 8 / 2 0 1 9 7/ 3 0 / 2 0 1 9 8/ 1 / 2 0 1 9 8/ 3 / 2 0 1 9 8/ 5 / 2 0 1 9 8/ 7 / 2 0 1 9 8/ 9 / 2 0 1 9 Gr o u n d w a t e r D e p t h ( i n c h e s ) Hollowell - Groundwater Gage 2 (HW2) Groundwater Depth (inches)Ground Level Cutoff -30 -25 -20 -15 -10 -5 0 5 10 6/ 1 8 / 2 0 1 9 6/ 2 0 / 2 0 1 9 6/ 2 2 / 2 0 1 9 6/ 2 4 / 2 0 1 9 6/ 2 6 / 2 0 1 9 6/ 2 8 / 2 0 1 9 6/ 3 0 / 2 0 1 9 7/ 2 / 2 0 1 9 7/ 4 / 2 0 1 9 7/ 6 / 2 0 1 9 7/ 8 / 2 0 1 9 7/ 1 0 / 2 0 1 9 7/ 1 2 / 2 0 1 9 7/ 1 4 / 2 0 1 9 7/ 1 6 / 2 0 1 9 7/ 1 8 / 2 0 1 9 7/ 2 0 / 2 0 1 9 7/ 2 2 / 2 0 1 9 7/ 2 4 / 2 0 1 9 7/ 2 6 / 2 0 1 9 7/ 2 8 / 2 0 1 9 7/ 3 0 / 2 0 1 9 8/ 1 / 2 0 1 9 8/ 3 / 2 0 1 9 8/ 5 / 2 0 1 9 8/ 7 / 2 0 1 9 8/ 9 / 2 0 1 9 Gr o u n d w a t e r D e p t h ( i n c h e s ) Hollowell - Groundwater Gage 3 (HW3) Groundwater Depth (inches)Ground Level Cutoff Referance Wetland Data- Hollowell Appendix C - Site Analysis Data Swiftie Mitigation Project Stream Design Parameters and Morphology Tables NC Coastal Plain Regional Curve Comparison NC Coastal Plain Headwater Channel Form Comparison Bankfull Velocity and Discharge Estimates Sediment Transport Calculations Parameter MIN MAX MIN MAX MIN MAX Stream Length (ft) Drainage Area, DA (sq mi) Stream Type (Rosgen) Bankfull Discharge, Qbkf (cfs)------ Bankfull Riffle XSEC Area, Abkf (sq ft)------ Bankfull Mean Velocity, Vbkf (ft/s)------ Bankfull Riffle Width, Wbkf (ft)------ Bankfull Mean Depth, Dbkf (ft)------ Width to Depth Ratio, W/D (ft/ft)10.0 15.0 Width of Floodprone Area, Wfpa (ft)------16.0 46.0 Entrenchment Ratio, Wfpa/Wbkf (ft/ft)2.2 >2.2 3.9 11.2 Riffle Max Depth @ bkf, Dmax (ft)------ Riffle Max Depth Ratio, Dmax/Dbkf (ft/ft)1.1 1.5 Max Depth @ tob, Dmaxtob (ft)------ Bank Height Ratio, Dmaxtob/Dmax (ft/ft)1.0 1.1 Meander Wavelength, Lm (ft)N/A N/A ------28.76 57.51 Meander Wavelength Ratio, Lm/Wbkf (ft/ft)N/A N/A N/A 14.0 7.00 14.00 Radius of Curvature, Rc (ft)N/A N/A ------8.22 12.32 Rc Ratio, Rc/Wbkf (ft/ft)N/A N/A N/A 3.0 2.00 3.00 Belt Width, Wblt (ft)N/A N/A ------14.38 32.86 Meander Width Ratio, Wblt/Wbkf (ft/ft)N/A N/A N/A 8.0 3.50 8.00 Sinuosity, K (Sval/Schan) 1.20 1.60 Valley Slope, Sval (ft/ft)0.0050 0.0150 Channel Slope, Schan (ft/ft) ------ Riffle Slope, Sriff ------------0.0037 0.0060 Riffle Slope Ratio, Sriff/Schan ------1.2 1.7 1.1 1.8 Pool Slope, Spool (ft/ft)------------0.0000 0.0013 Pool Slope Ratio, Spool/Schan ------0.0 0.2 0.0 0.4 Pool Max Depth @ bkf, Dmaxpool (ft)------------ Pool Max Depth Ratio, Dmaxpool/Dbkf (ft/ft)------1.5 3.5 Pool Width, Wpool (ft)------------ Pool Width Ratio, Wpool/Wbkf (ft/ft)------1.2 1.70 Pool Spacing, Lps (ft)------------14.4 28.8 Pool-Pool Spacing Ratio, Lps/Wbkf (ft/ft)------3.5 7.0 3.5 7.0 D50 (mm) Swiftie - S100 Reach 1 Existing Stream Values Composite Reference Values Proposed Stream Values 668 ---703 0.04 ---0.04 G5 DA/E5 DA 1.50 1.50 1.60 1.25 0.94 1.20 4.40 4.11 0.36 0.30 12.10 13.5 6.60 1.50 0.50 0.43 1.38 1.40 3.50 2.40 0.43 4.80 1.00 1.00 1.06 0.0058 0.0060 0.0034 0.0034 1.07 6.98 1.70 <2.0 <2.0 <2.0 Parameter MIN MAX MIN MAX MIN MAX Stream Length (ft) Drainage Area, DA (sq mi) Stream Type (Rosgen) Bankfull Discharge, Qbkf (cfs)------ Bankfull Riffle XSEC Area, Abkf (sq ft)------ Bankfull Mean Velocity, Vbkf (ft/s)------ Bankfull Riffle Width, Wbkf (ft)------ Bankfull Mean Depth, Dbkf (ft)------ Width to Depth Ratio, W/D (ft/ft)10.0 15.0 Width of Floodprone Area, Wfpa (ft)------50.8 61.0 Entrenchment Ratio, Wfpa/Wbkf (ft/ft)12.4 14.8 Riffle Max Depth @ bkf, Dmax (ft)------ Riffle Max Depth Ratio, Dmax/Dbkf (ft/ft)1.1 1.5 Max Depth @ tob, Dmaxtob (ft)------ Bank Height Ratio, Dmaxtob/Dmax (ft/ft)1.0 1.1 Meander Wavelength, Lm (ft)N/A N/A ------28.76 57.51 Meander Wavelength Ratio, Lm/Wbkf (ft/ft)N/A N/A N/A 14.0 7.00 14.00 Radius of Curvature, Rc (ft)N/A N/A ------8.22 12.32 Rc Ratio, Rc/Wbkf (ft/ft)N/A N/A N/A 3.0 2.00 3.00 Belt Width, Wblt (ft)N/A N/A ------14.38 32.86 Meander Width Ratio, Wblt/Wbkf (ft/ft)N/A N/A N/A 8.0 3.50 8.00 Sinuosity, K (Sval/Schan) 1.20 1.60 Valley Slope, Sval (ft/ft)0.0050 0.0150 Channel Slope, Schan (ft/ft) ------ Riffle Slope, Sriff ------------0.0195 0.0243 Riffle Slope Ratio, Sriff/Schan ------1.2 1.7 1.2 1.5 Pool Slope, Spool (ft/ft)------------0.0000 0.0032 Pool Slope Ratio, Spool/Schan ------0.0 0.2 0.0 0.2 Pool Max Depth @ bkf, Dmaxpool (ft)------------ Pool Max Depth Ratio, Dmaxpool/Dbkf (ft/ft)------1.5 3.5 Pool Width, Wpool (ft)------------ Pool Width Ratio, Wpool/Wbkf (ft/ft)------1.2 1.7 Pool Spacing, Lps (ft)------------14.4 28.8 Pool-Pool Spacing Ratio, Lps/Wbkf (ft/ft)------3.5 7.0 3.5 7.0 D50 (mm) Swiftie - S100 Reach 2 Existing Stream Values Composite Reference Values Proposed Stream Values 272 ---297 0.050 ---0.050 G5 E5/C5 C 1.50 1.5 1.60 1.25 0.94 1.20 1.38 1.40 4.40 4.11 0.36 0.30 12.10 13.5 6.60 1.50 >2.2 0.50 0.43 3.5 2.40 0.43 4.80 1.00 1.13 1.23 0.0207 0.0207 0.0165 0.0162 1.1 7.0 1.7 <2.0 <2.0 <2.0 Parameter MIN MAX MIN MAX MIN MAX Stream Length (ft) Drainage Area, DA (sq mi) Stream Type (Rosgen) Bankfull Discharge, Qbkf (cfs)------ Bankfull Riffle XSEC Area, Abkf (sq ft)------ Bankfull Mean Velocity, Vbkf (ft/s)------ Bankfull Riffle Width, Wbkf (ft)------ Bankfull Mean Depth, Dbkf (ft)------ Width to Depth Ratio, W/D (ft/ft)10.0 15.0 Width of Floodprone Area, Wfpa (ft)------59.0 87.0 Entrenchment Ratio, Wfpa/Wbkf (ft/ft)2.2 >2.2 11.0 16.3 Riffle Max Depth @ bkf, Dmax (ft)------ Riffle Max Depth Ratio, Dmax/Dbkf (ft/ft)1.1 1.5 Max Depth @ tob, Dmaxtob (ft)------ Bank Height Ratio, Dmaxtob/Dmax (ft/ft)1.0 1.1 Meander Wavelength, Lm (ft)N/A N/A ------37.44 74.87 Meander Wavelength Ratio, Lm/Wbkf (ft/ft)N/A N/A N/A 14.0 7.00 14.00 Radius of Curvature, Rc (ft)N/A N/A ------10.70 16.04 Rc Ratio, Rc/Wbkf (ft/ft)N/A N/A N/A 3.0 2.00 3.00 Belt Width, Wblt (ft)N/A N/A ------18.72 42.78 Meander Width Ratio, Wblt/Wbkf (ft/ft)N/A N/A N/A 8.0 3.50 8.00 Sinuosity, K (Sval/Schan) 1.20 1.60 Valley Slope, Sval (ft/ft)0.0050 0.0150 Channel Slope, Schan (ft/ft) ------ Riffle Slope, Sriff ------------0.0175 0.0218 Riffle Slope Ratio, Sriff/Schan ------1.2 1.7 1.20 1.50 Pool Slope, Spool (ft/ft)------------0.0000 0.0029 Pool Slope Ratio, Spool/Schan ------0.0 0.2 0.00 0.20 Pool Max Depth @ bkf, Dmaxpool (ft)------------ Pool Max Depth Ratio, Dmaxpool/Dbkf (ft/ft)------1.5 3.5 Pool Width, Wpool (ft)------------ Pool Width Ratio, Wpool/Wbkf (ft/ft)------1.2 1.70 Pool Spacing, Lps (ft)------------6.4 9.1 Pool-Pool Spacing Ratio, Lps/Wbkf (ft/ft)------3.5 7.0 1.2 1.7 D50 (mm) 9.09 1.70 <2.0 <2.0 <2.0 0.0107 0.0190 0.0070 0.0146 1.44 3.50 0.64 0.56 1.00 1.00 1.02 1.00 88.50 13.62 0.640 0.56 5.20 1.35 6.50 5.35 0.12 0.41 52.81 13.0 3.50 3.50 0.80 2.20 4.38 1.59 0.17 ---0.17 G5/DA DA/E5 DA Swiftie - S200 Reach 1 Existing Stream Values Composite Reference Values Proposed Stream Values 287 ---264 Parameter MIN MAX MIN MAX MIN MAX Stream Length (ft) Drainage Area, DA (sq mi) Stream Type (Rosgen) Bankfull Discharge, Qbkf (cfs)------ Bankfull Riffle XSEC Area, Abkf (sq ft)------ Bankfull Mean Velocity, Vbkf (ft/s)------ Bankfull Riffle Width, Wbkf (ft)------ Bankfull Mean Depth, Dbkf (ft)------ Width to Depth Ratio, W/D (ft/ft)10.0 15.0 Width of Floodprone Area, Wfpa (ft)------41.0 94.0 Entrenchment Ratio, Wfpa/Wbkf (ft/ft)2.2 >2.2 6.3 14.5 Riffle Max Depth @ bkf, Dmax (ft)------ Riffle Max Depth Ratio, Dmax/Dbkf (ft/ft)1.1 1.5 Max Depth @ tob, Dmaxtob (ft)------ Bank Height Ratio, Dmaxtob/Dmax (ft/ft)1.0 1.1 Meander Wavelength, Lm (ft)N/A N/A ------45.37 90.73 Meander Wavelength Ratio, Lm/Wbkf (ft/ft)N/A N/A N/A 14.0 7.00 14.00 Radius of Curvature, Rc (ft)N/A N/A ------12.96 19.44 Rc Ratio, Rc/Wbkf (ft/ft)N/A N/A N/A 3.0 2.00 3.00 Belt Width, Wblt (ft)N/A N/A ------22.68 51.85 Meander Width Ratio, Wblt/Wbkf (ft/ft)N/A N/A N/A 8.0 3.50 8.00 Sinuosity, K (Sval/Schan) 1.20 1.60 Valley Slope, Sval (ft/ft)0.0050 0.0150 Channel Slope, Schan (ft/ft) ------ Riffle Slope, Sriff ------------0.0046 0.0058 Riffle Slope Ratio, Sriff/Schan ------1.2 1.7 1.20 1.50 Pool Slope, Spool (ft/ft)------------0.0000 0.0008 Pool Slope Ratio, Spool/Schan ------0.0 0.2 0.00 0.20 Pool Max Depth @ bkf, Dmaxpool (ft)------------ Pool Max Depth Ratio, Dmaxpool/Dbkf (ft/ft)------1.5 3.5 Pool Width, Wpool (ft)------------ Pool Width Ratio, Wpool/Wbkf (ft/ft)------1.2 1.70 Pool Spacing, Lps (ft)------------3.2 32.4 Pool-Pool Spacing Ratio, Lps/Wbkf (ft/ft)------3.5 7.0 0.5 5.0 D50 (mm) 11.02 1.70 <2.0 <2.0 <2.0 0.0021 0.0021 0.0043 0.0038 1.89 3.50 0.64 0.73 1.00 1.00 1.02 1.02 88.50 13.62 0.640 0.73 5.20 1.35 6.50 6.48 0.12 0.54 52.81 12.0 4.00 4.00 0.80 3.50 5.00 1.14 0.20 ---0.20 G5/DA DA/E5 DA Swiftie - S200 Reach 3/4 Existing Stream Values Composite Reference Values Proposed Stream Values 1439 ---1432 y = 14.52x0.66 R² = 0.88 y = 9.43x 0.74 R² = 0.9 1.0 10.0 100.0 1000.0 0.01 0.10 1.00 10.00 100.00 Ba n k f u l l X - S e c . A r e a (S q . F t . ) Drainage Area (Sq. Mi.) NC Coastal Plain Regional Curve Doll, et al. (2003) Sweet and Geratz (2003) S100-R1 S100-R2 S200-R1 S200-R2 S200 R3-4 S300 S400 S500 S600 S700 TURTLE CREEK S300 REF Power (Doll, et al. (2003)) Power (Sweet and Geratz (2003)) 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 0.022 0.024 10 100 1000 Va l l e y S l o p e ( f t / f t ) Drainage Area (acres) Poorly Defined Moderately Defined Well Defined Mill Swamp-UT1a Mill Swamp-UT1b Mill Swamp-UT1c UTJR-UT1a UTJR-UT1b UTJR-UT1c Duke Swamp-UT1a UTHB South Ref Reach U/S UTHB North Ref Reach U/S UTHB North Ref Reach D/S Turtle Crk S300 REF SWIFTIE S100 SWIFTIE S200 SWIFTIE S300 SWIFTIE S400 Channel Form Data Comparisons for CP Headwater Stream References Moderately Defined  Channels Well Defined  Channels Poorly Defined  Channels Ref Reach S200S100 S300 S400 Ref Reach Ref Reach Site Description: Drainage % Impervious I24H50Y Drainage Area (sq mi):0.04 0.55 7.79 Retun Interval (yr)Peak Discharge (cfs)Notes 1.0 1.41 extrapolated. Need to use equation generated below. 1.2 3.32 extrapolated. Need to use equation generated below. 1.5 5.65 extrapolated. Need to use equation generated below. 2 10.1 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 5 18.4 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 10 25.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 25 34.1 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 50 41.3 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 100 49.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 200 57.2 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 500 68.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) Swiftie S100-R1 y = 10.473ln(x) + 1.408 1.0 10.0 100.0 1 10 100 1000 Di s c h a r g e ( c f s ) Return Interval (years) Peak Discharge Estimate versus Return Interval Site Description: Drainage % Impervious I24H50Y Drainage Area (sq mi):0.05 0.45 7.79 Retun Interval (yr)Peak Discharge (cfs)Notes 1.0 1.38 extrapolated. Need to use equation generated below. 1.2 3.58 extrapolated. Need to use equation generated below. 1.5 6.26 extrapolated. Need to use equation generated below. 2 11.4 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 5 21.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 10 28.4 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 25 38.9 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 50 47.2 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 100 56.1 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 200 65.5 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 500 78.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) Swiftie S100-R2 y = 12.044ln(x) + 1.3792 1.0 10.0 100.0 1 10 100 1000 Di s c h a r g e ( c f s ) Return Interval (years) Peak Discharge Estimate versus Return Interval Site Description: Drainage % Impervious I24H50Y Drainage Area (sq mi):0.17 1.49 7.78 Retun Interval (yr)Peak Discharge (cfs)Notes 1.0 2.50 extrapolated. Need to use equation generated below. 1.2 7.26 extrapolated. Need to use equation generated below. 1.5 13.08 extrapolated. Need to use equation generated below. 2 24.6 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 5 45.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 10 61.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 25 83.5 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 50 101.6 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 100 120.9 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 200 141.5 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 500 169.1 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) Swiftie S200-R1_R2 y = 26.108ln(x) + 2.4991 1.0 10.0 100.0 1000.0 1 10 100 1000 Di s c h a r g e ( c f s ) Return Interval (years) Peak Discharge Estimate versus Return Interval Site Description: Drainage % Impervious I24H50Y Drainage Area (sq mi):0.20 1.29 7.78 Retun Interval (yr)Peak Discharge (cfs)Notes 1.0 2.15 extrapolated. Need to use equation generated below. 1.2 7.43 extrapolated. Need to use equation generated below. 1.5 13.89 extrapolated. Need to use equation generated below. 2 26.9 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 5 49.3 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 10 67.0 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 25 91.9 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 50 111.9 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 100 133.3 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 200 156.3 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) 500 187.1 USGS regional regression, 2011 (small streams, HR4, 0.10≤53.5 sq. mi.) Swiftie S200-R3-4 y = 28.95ln(x) + 2.1525 1.0 10.0 100.0 1000.0 1 10 100 1000 Di s c h a r g e ( c f s ) Return Interval (years) Peak Discharge Estimate versus Return Interval y = -1280x + 13.7 R2 = 0.57 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 0 0.005 0.01 0.015 0.02 W/ D R a t i o Slope (ft/ft) CP Sand Bed Reference Reaches Swiftie S100-R1 Swiftie S100-R2 Swiftie S200-R1 Swiftie S200-R3/R4 Width to Depth Ratio (W/D) Versus Channel Slope y = 37.55x + 0.03 R2 = 0.96 0.000 0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 0 0.005 0.01 0.015 0.02 Sh e a r S t r e s s ( l b / f t ^ 2 ) Slope (ft/ft) CP Sand Bed Reference Reaches Swiftie S100-R1 Swiftie S100-R2 Swiftie S200-R1 Swiftie S200-R3/R4 Bankfull Shear Stress Versus Channel Slope y = 1941.8x - 0.92R2= 0.90 0.000 5.000 10.000 15.000 20.000 0 0.005 0.01 0.015 0.02 St r e a m P o w e r ( W / m ^ 2 ) Slope (ft/ft) CP Sand Bed Reference Reaches Swiftie S100-R1 Swiftie S100-R2 Swiftie S200-R1 Swiftie S200-R3/R4 Stream Power Versus Channel Slope Appendix D - Site Protection Instrument Swiftie Mitigation Project Property General Warranty Deed Long-term Steward Engagement Letter & Fee Breakdown Conservation Easement Template RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: SPACE ABOVE THIS LINE FOR RECORDER’S USE PERMANENT CONSERVATION EASEMENT THIS CONSERVATION EASEMENT (“Conservation Easement”) made this day ____ of _______________, 202__ by _______________ and between (“Grantor”) and _______________ (“Grantee”). The designation Grantor and Grantee as used herein shall include said parties, their heirs, successors and assigns, and shall include singular, plural, masculine, feminine or neuter as required by context. RECITALS WHEREAS, Grantor owns in fee simple certain real property situated, lying and being in _______________ County, North Carolina, more particularly described in Exhibit A attached hereto and incorporated herein (the “Property”); WHEREAS, Grantee is a charitable, not-for-profit or educational corporation, association, or trust qualified under § 501 (c)(3) and § 170 (h) of the Internal Revenue Code, and N.C. Gen. Stat. § 121-34 et seq., the purposes or powers of which include one or more of the purposes (a) – (d) listed below; (a) retaining or protecting natural, scenic, or open-space aspects of real property; (b) ensuring the availability of real property for recreational, educational, or open-space use; (c) protecting natural resources; (d) maintaining or enhancing air or water quality. WHEREAS, Grantor and Grantee recognize the conservation, scenic, natural, or aesthetic value of the property in its natural state, which includes the following natural communities: [add or delete as appropriate: coastal wetlands, non-riparian wetlands, riparian wetlands, perennial and intermittent streams and riparian buffers]. The purpose of this Conservation Easement is to maintain streams, wetlands and riparian resources and other natural values of approximately _______________ acres, more or less, and being more particularly described in Exhibit B attached hereto and incorporated fully herein by reference (the “Conservation Easement Area”), and prevent the use or development of the Conservation Easement Area for any purpose or in any manner that would conflict with the maintenance of its natural condition. WHEREAS, the restoration, enhancement and preservation of the Conservation Easement Area is a condition of the approval of the Mitigation Banking Instrument (MBI) and Mitigation Plan for the _______________ Mitigation Bank, Department of the Army (DA) Action ID Number SAW- _______________, entitled “Agreement to Establish the _______________ Mitigation Bank in the _______________ River Basin within the State of North Carolina”, entered into by and between [enter Sponsor name], acting as the Bank Sponsor, and the Wilmington District Corps of Engineers (Corps), in consultation with the North Carolina Interagency Review Team (IRT). The _______________ Mitigation Site has been approved by the Corps for use as a mitigation bank to compensate for unavoidable stream and wetland impacts authorized by DA permits. WHEREAS, the restoration, enhancement and preservation of the Conservation Easement Area is also a condition of the approval of the _______________ Riparian Buffer and Nutrient Offset Mitigation Banking Instrument (MBI) and Bank Parcel Development Package (BPDP) or Mitigation Plan for the_______________ Riparian Buffer and Nutrient Offset Mitigation Bank, North Carolina Division of Water Resources (NCDWR) Project ID# _______________, which was approved by the NCDWR, and will be made and entered into by and between [enter Sponsor name], acting as the Bank Sponsor, and the NCDWR. The _______________ Riparian Buffer and Nutrient Offset Site is intended to be used to compensate for riparian buffer and nutrient impacts to surface waters. WHEREAS, Grantor and Grantee agree that third-party rights of enforcement shall be held by the North Carolina Division of Water Resources (NCDWR) and U.S. Army Corps of Engineers, Wilmington District (“Third- Parties,” to include any successor agencies), and may be exercised through the appropriate enforcement agencies of the United States and the State of North Carolina, and that these rights are in addition to, and do not limit, the rights of enforcement under the NCDWR Project ID# _______________ and the Department of the Army instrument number SAW-_______________ (“Mitigation Banking Instrument”), or any permit or certification issued by the Third-Parties. NOW, THEREFORE, for and in consideration of the covenants and representations contained herein and for other good and valuable consideration, the receipt and legal sufficiency of which is hereby acknowledged, Grantor hereby unconditionally and irrevocably grants and conveys unto Grantee, its heirs, successors and assigns, forever and in perpetuity a Conservation Easement of the nature and character and to the extent hereinafter set forth, over the Conservation Easement Area described on Exhibit B, together with the right to preserve and protect the conservation values thereof, as follows: ARTICLE I. DURATION OF EASEMENT This Conservation Easement shall be perpetual. This Conservation Easement is an easement in gross, runs with the land and is enforceable by Grantee against Grantor, Grantor’s personal representatives, heirs, successors and assigns, lessees, agents and licensees. ARTICLE II. PROHIBITED AND RESTRICTED ACTIVITIES Any activity on, or use of, the Conservation Easement Area inconsistent with the purpose of this Conservation Easement is prohibited. The Conservation Easement Area shall be preserved in its natural condition and restricted from any development that would impair or interfere with the conservation values of the Conservation Easement Area. Without limiting the generality of the foregoing, the following activities and uses are expressly prohibited, restricted or reserved as indicated hereunder: A. Disturbance of Natural Features. Any change disturbance, alteration or impairment of the natural features of the Conservation Easement Area or any introduction of non-native plants and/or animal species is prohibited. B. Construction. There shall be no constructing or placing of any building, mobile home, asphalt or concrete pavement, billboard or other advertising display, antenna, utility pole, tower, conduit, line, pier, landing, dock or any other temporary or permanent structure or facility on or above the Conservation Easement Area, except as set forth in item F of Article II. C. Industrial, Commercial and Residential Use. Industrial, residential and/or commercial activities, including any rights of passage for such purposes are prohibited. D. Agricultural, Grazing and Horticultural Use. Agricultural, grazing, animal husbandry, and horticultural use of the Conservation Easement Area are prohibited. E. Vegetation. There shall be no removal, burning, destruction, harming, cutting or mowing of trees, shrubs, or other vegetation in the Conservation Easement Area except as provided in the Mitigation Plan and BPDP/Mitigation Plan, and item F of Article II. Mowing of invasive and herbaceous vegetation for purposes of enhancing planted or volunteer trees and shrubs approved in the Mitigation Plan and BPDP/Mitigation Plan is allowable once a year for no more than five consecutive years from the date on page 1 of this Conservation Easement, except where mowing will negatively impact vegetation or disturb soils. Mowing activities shall only be performed by [enter Sponsor name] and shall not violate any part of Item L of Article II. F. Roads and Trails. There shall be no construction of roads, trails or walkways on the Conservation Easement Area; nor enlargement or modification to existing roads, trails or walkways, except that the Grantor reserves the right to establish natural surface trails in the Conservation Easement Area for the purpose of hiking and non-motorized bicycling. Natural surface trails are defined as having tread that is the product of shaping the native mineral soils. All trail work involving soil disturbance must follow best practices for sustainable trail design and must have prior written approval by the Corps. Natural surface trails must be located a minimum distance of 30 feet from the top of the bank of all streams and ponds, unless such locations are physically impracticable, and must be located so as not to impair the conservation values of the Conservation Easement Area, and in a manner that complies with the Mitigation Plan. When required by the terrain, natural surface trails may include boardwalks, footbridges, ramps, and handrails to the extent necessary. Grantor must have prior written approval by the Corps before constructing boardwalks, footbridges, ramps, and handrails that cross wetlands, streams or ponds. The Grantor may also install and maintain park benches, litter receptables, and trail/feature signs along natural surface trails. All necessary care shall be taken to establish and maintain such features and natural surface trails in a manner so as not to impair any conservation values of the Conservation Easement Area, and to comply with the Mitigation Plan. G. Signage. No signs shall be permitted on or over the Conservation Easement Area, except the posting of no trespassing signs, signs identifying the conservation values of the Conservation Easement Area, signs giving directions or proscribing rules and regulations for the use of the Conservation Easement Area and/or signs identifying the Grantor as owner of the Conservation Easement Area. H. Dumping or Storage. Dumping or storage of soil, trash, ashes, garbage, waste, abandoned vehicles, appliances, machinery or hazardous substances, or toxic or hazardous waste, or any placement of underground or aboveground storage tanks or other materials on the Conservation Easement Area is prohibited. I. Excavation, Dredging or Mineral Use. There shall be no grading, filling, excavation, dredging, mining or drilling; no removal of topsoil, sand, gravel, rock, peat, minerals or other materials, and no change in the topography of the land in any manner on the Conservation Easement Area, except to restore natural topography or drainage patterns. For purposes of restoring and enhancing streams and wetlands within the Conservation Easement Area, [enter Sponsor name] is allowed to perform grading, filling, and excavation associated with stream and wetland restoration and enhancement activities as described in the Mitigation Plan and authorized by Department of the Army Nationwide Permit 27. J. Water Quality and Drainage Pattern. There shall be no diking, draining, dredging, channeling, filling, leveling, pumping, impounding or related activities, or altering or tampering with water control structures or devices, or disruption or alteration of the restored, enhanced, or created drainage patterns. In addition, diverting or causing or permitting the diversion of surface or underground water into, within or out of the easement area by any means, removal of wetlands, polluting or discharging into waters, springs, seeps, or wetlands, or use of pesticide or biocides is prohibited. K. Development Rights. No development rights that have been encumbered or extinguished by this Conservation Easement shall be transferred pursuant to a transferable development rights scheme or cluster development arrangement or otherwise. [Not required, but may be added if Grantor and Grantee agree:] L. Subdivision. The Grantor and Grantee agree that the Conservation Easement Area currently consists of _______________ within _______________ separate parcels. The Grantor may not further subdivide the Conservation Easement Area, except with the prior written consent of the Grantee. If Grantor elects to further subdivide any portion of the Conservation Easement Area, Grantor must provide the Grantee the name, address, and telephone number of new owner(s) of all property within the Conservation Easement Area, if different from Grantor. No subdivision of the Conservation Easement Area shall limit the right of ingress and egress over and across the Property for the purposes set forth herein. Further, in the event of any subdivision of the Property (whether inside or outside of the Conservation Easement Area) provision shall be made to preserve not only Grantee’s perpetual rights of access to the Conservation Easement Area, as defined herein, but also Grantee’s right of perpetual access to any conservation easements on properties adjacent to the Property which form a part of or are included in the Mitigation Plan or BPDP/Mitigation Plan. Creation of a condominium or any de facto division of the Conservation Easement Area is prohibited. Lot line adjustments or lot consolidation without the prior written consent of the Grantee is prohibited. The Grantor may convey undivided interests in the real property underlying the Conservation Easement Area. The Grantor shall notify the Grantee immediately of the name, address, and telephone number of any grantee of an undivided interest in any property within the Conservation Easement Area. M. Vehicles. The operation of mechanized vehicles, including, but not limited to, motorcycles, dirt bikes, all-terrain vehicles, cars and trucks is prohibited other than for temporary or occasional access by the [enter Sponsor name], the Grantee, its employees and agents, successors, assigns, NCDWR, and the Corps for purposes of constructing, maintaining and monitoring the restoration, enhancement and preservation of streams, wetlands and riparian areas within the Conservation Easement Area. The use of mechanized vehicles for monitoring purposes is limited to only existing roads and trails as shown in the approved in the Mitigation Plan and BPDP/Mitigation Plan. N. Other Prohibitions. Any other use of, or activity on, the Conservation Easement Area which is or may become inconsistent with the purposes of this grant, the preservation of the Conservation Easement Area substantially in its natural condition, or the protection of its environmental systems, is prohibited. ARTICLE III. GRANTOR’S RESERVED RIGHTS The Grantor expressly reserves for himself, his personal representatives, heirs, successors or assigns, the right to continue the use of the Conservation Easement Area for all purposes not inconsistent with this Conservation Easement, including, but not limited to, the right to quiet enjoyment of the Conservation Easement Area, the rights of ingress and egress, the right to hunt, fish, and hike on the Conservation Easement Area, the right to sell, transfer, gift or otherwise convey the Conservation Easement Area, in whole or in part, provided such sale, transfer or gift conveyance is subject to the terms of, and shall specifically reference, this Conservation Easement. The Grantor reserves the right to allow public access and use of the Conservation Easement Area for the purpose of passive recreational activities that are not inconsistent with this Conservation Easement. Notwithstanding the foregoing Restrictions, Grantor reserves for Grantor, its successors and assigns, including [enter Sponsor name] acting as the Bank Sponsor, the right to construct and perform activities related to the restoration, enhancement, and preservation of streams, wetlands and riparian areas within the Conservation Easement Area in accordance with the approved _______________ Mitigation Plan, the approved _______________ BPDP/Mitigation Plan, and the two Mitigation Banking Instruments described in the Recitals of this Conservation Easement. Notwithstanding the foregoing Restrictions, Grantor reserves for Grantor, its successors and assigns, the following rights in the areas labeled as “Internal Crossing” on the plat [insert plat name and recorded plat book page number] in the Conservation Easement Area: vehicular access, livestock access, irrigation piping and piping of livestock waste. All Internal Crossings that allow livestock access will be bounded by fencing and will be over a culvert. ARTICLE IV. GRANTEE’S RIGHTS The Grantee or its authorized representatives, successors and assigns, the Corps and NCDWR, shall have the right to enter the Property and Conservation Easement Area at all reasonable times for the purpose of inspecting the Conservation Easement Area to determine if the Grantor, or his personal representatives, heirs, successors, or assigns, is complying with the terms, conditions, restrictions, and purposes of this Conservation Easement. The Grantee, [enter Sponsor name], and its authorized representatives, successors and assigns, the Corps and NCDWR shall also have the right to enter and go upon the Conservation Easement Area for purposes of making scientific or educational observations and studies, and taking samples. Grantee is granted and shall have a perpetual, non-exclusive right of access, ingress, and regress to and from the Conservation Easement over and across the area labeled as “________________________” and that area labeled as “____________________” on the Plat of record referenced in Exhibit B. ARTICLE V. ENFORCEMENT AND REMEDIES A. To accomplish the purposes of this Easement, Grantee, the Corps, and NCDWR are allowed to prevent any activity on or use of the Conservation Easement Area that is inconsistent with the purposes of this Easement and to require the restoration of such areas or features of the Conservation Easement Area that may be damaged by such activity or use. Upon any breach of the terms of this Conservation Easement by Grantor that comes to the attention of the Grantee, the Grantee shall notify the Grantor in writing of such breach. The Grantor shall have 30 days after receipt of such notice to correct the conditions constituting such breach. If the breach remains uncured after 30 days, the Grantee may enforce this Conservation Easement by appropriate legal proceedings including damages, injunctive and other relief. Notwithstanding the foregoing, the Grantee reserves the immediate right, without notice, to obtain a temporary restraining order, injunctive or other appropriate relief if the breach of the terms of this Conservation Easement is or would irreversibly or otherwise materially impair the benefits to be derived from this Conservation Easement. The Grantor and Grantee acknowledge that under such circumstances damage to the Grantee would be irreparable and remedies at law will be inadequate. The rights and remedies of the Grantee provided hereunder shall be in addition to, and not in lieu of, all other rights and remedies available to Grantee in connection with this Conservation Easement. The costs of a breach, correction or restoration, including the Grantee’s expenses, court costs, and attorneys’ fees, shall be paid by Grantor, provided Grantor is determined to be responsible for the breach. The Corps and the NCDWR shall have the same rights and privileges as the said Grantee to enforce the terms and conditions of this Conservation Easement. B. No failure on the part of the Grantee to enforce any covenant or provision hereof shall discharge or invalidate such covenant or any other covenant, condition, or provision hereof or affect the right to Grantee to enforce the same in the event of a subsequent breach or default. C. Nothing contained in this Conservation Easement shall be construed to entitle Grantee to bring any action against Grantor for any injury or change in the Conservation Easement Area resulting from causes beyond the Grantor’s control, including, without limitation, fire, flood, storm, war, acts of God or third parties, except Grantor’s lessees or invitees; or from any prudent action taken in good faith by Grantor under emergency conditions to prevent, abate, or mitigate significant injury to life, damage to property or harm to the Conservation Easement Area resulting from such causes. ARTICLE VI. MISCELLANEOUS A. Warranty. Grantor warrants, covenants and represents that it owns the Property in fee simple, and that Grantor either owns all interests in the Property which may be impaired by the granting of this Conservation Easement or that there are no outstanding mortgages, tax liens, encumbrances, or other interests in the Property which have not been expressly subordinated to this Conservation Easement. Grantor further warrants that Grantee shall have the use of and enjoy all the benefits derived from and arising out of this Conservation Easement, and that Grantor will warrant and defend title to the Property against the claims of all persons. B. Subsequent Transfers. The Grantor agrees to incorporate the terms of this Conservation Easement in any deed or other legal instrument that transfers any interest in all or a portion of the Conservation Easement Area. The Grantor agrees to provide written notice of such transfer at least sixty (60) days prior to the date of the transfer. The Grantor and Grantee agree that the terms of this Conservation Easement shall survive any merger of the fee and easement interests in the Conservation Easement Area or any portion thereof and shall not be amended, modified or terminated without the prior written consent and approval of the Corps. C. Assignment. The parties recognize and agree that the benefits of this Conservation Easement are in gross and assignable provided, however that the Grantee hereby covenants and agrees, that in the event it transfers or assigns this Conservation Easement, the organization receiving the interest will be a qualified holder pursuant to 33 CFR 332.7 (a)(1), N.C. Gen. Stat. § 121-34 et seq. and § 501 (c)(3) and § 170 (h) of the Internal Revenue Code, and the Grantee further covenants and agrees that the terms of the transfer or assignment will be such that the transferee or assignee will be required to continue in perpetuity the conservation purposes described in this document. D. Entire Agreement and Severability. The combined Mitigation Banking Instruments: MBI with corresponding Mitigation Plan, and MBI with corresponding BPDP/Mitigation Plan, and this Conservation Easement sets forth the entire agreement of the parties with respect to the Conservation Easement and supersedes all prior discussions, negotiations, understandings or agreements relating to the Conservation Easement. If any provision is found to be void or unenforceable by a court of competent jurisdiction, the remainder shall continue in full force and effect. E. Obligations of Ownership. Grantor is responsible for any real estate taxes, assessments, fees, or charges levied upon the Property. Grantor shall keep the Property free of any liens or other encumbrances for obligations incurred by Grantor, except those incurred after the date hereof, which are expressly subject and subordinate to the Conservation Easement. Grantee shall not be responsible for any costs or liability of any kind related to the ownership, operation, insurance, upkeep, or maintenance of the Property, except as expressly provided herein. Nothing herein shall relieve the Grantor of the obligation to comply with federal, state or local laws, regulations and permits that may apply to the exercise of the Reserved Rights. F. Long-Term Management. Grantor is responsible for all long-term management activities associated with fencing. These activities include the maintenance and/or replacement of fence structures to ensure the aquatic resource functions within the boundaries of the Protected Property are sustained. G. Extinguishment. In the event that changed conditions render impossible the continued use of the Conservation Easement Area for the conservation purposes, this Conservation Easement may only be extinguished, in whole or in part, by judicial proceeding. H. Eminent Domain. Whenever all or part of the Conservation Easement Area is taken in the exercise of eminent domain so as to substantially abrogate the Restrictions imposed by this Conservation Easement, Grantor and Grantee shall join in appropriate actions at the time of such taking to recover the full value of the taking, and all incidental and direct damages due to the taking. I. Proceeds. This Conservation Easement constitutes a real property interest immediately vested in Grantee. In the event that all or a portion of the Conservation Easement Area is sold, exchanged, or involuntarily converted following an extinguishment or the exercise of eminent domain, Grantee shall be entitled to the fair market value of this Conservation Easement as determined at the time of the extinguishment or condemnation. J. Notification. Any notice, request for approval, or other communication required under this Conservation Easement shall be sent by registered or certified mail, postage prepaid, to the following addresses (or such address as may be hereafter specified by notice pursuant to this paragraph): To Grantor: [Name, address and fax number] To Grantee: [Name, address and fax number] To Sponsor: To the Corps: US Army Corps of Engineers Wilmington District, Regulatory Division 69 Darlington Avenue Wilmington, NC 28403 To NCDEQ -DWR: NCDEQ – Division of Water Resources 401 & Buffer Permitting Branch 1617 Mail Service Center Raleigh, NC 27699-1601 K. Failure of Grantee. If at any time Grantee is unable or fails to enforce this Conservation Easement, or if Grantee ceases to be a qualified grantee, and if within a reasonable period of time after the occurrence of one of these events Grantee fails to make an assignment pursuant to this Conservation Easement, then the Grantee’s interest shall become vested in another qualified grantee in accordance with an appropriate proceeding in a court of competent jurisdiction. L. Amendment. This Conservation Easement may be amended, but only in a writing signed by all parties hereto, and provided such amendment does not affect the qualification of this Conservation Easement or the status of the Grantee under any applicable laws, and is consistent with the conservation purposes of this grant. M. Present Condition of the Conservation Easement Area. The wetlands, scenic, resource, environmental, and other natural characteristics of the Conservation Easement Area, and its current use and state of improvement, are described in Section _____ of the Mitigation Plan, prepared by Grantor and acknowledged by the Grantor and Grantee to be complete and accurate as of the date hereof. Both Grantor and Grantee have copies of the Mitigation Plan. The Conservation Easement Area’s characteristics, its current use, and its state of improvement are also described in a Baseline Documentation Report (“BDR”), which report has been prepared by Grantee. Both Grantor and Grantee have copies of the BDR. Grantor and Grantee acknowledge that Section ____ of the Mitigation Plan and the BDR will be used by the parties to assure that any future changes in the use of the Conservation Easement Area will be consistent with the terms of this Conservation Easement. However, this report is not intended to preclude the use of other evidence to establish the present condition of the Conservation Easement Area if there is a controversy over its use. TO HAVE AND TO HOLD the said rights and easements perpetually unto Grantee for the aforesaid purposes. IN TESTIMONY WHEREOF, the Grantor has hereunto set his hand and seal, the day and year first above written. [Signatures of the Grantor and Grantee in appropriate form] Appendix E - USACE Assessment Forms Swiftie Mitigation Project NC SAM Forms NC WAM Forms NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project – S100 2. Date of evaluation:9-15-2022 3. Applicant/owner name:Water and Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad: Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):36.000434, -77.605733 STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S100 10. Length of assessment reach evaluated (feet):315 11. Channel depth from bed (in riffle, if present) to top of bank (feet):2.5 Unable to assess channel depth. 12. Channel width at top of bank (feet):10 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12. Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13. Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14. Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15. Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16. Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18. Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19. Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20. Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21. Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22. Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23. Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24. Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25. Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: Did not have YSI Sensor 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project – S100 Date of Assessment 9-15-2022 Stream Category la1 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Intermittent Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology LOW LOW (2) Baseflow HIGH HIGH (2) Flood Flow LOW LOW (3) Streamside Area Attenuation LOW LOW (4) Floodplain Access MEDIUM MEDIUM (4) Wooded Riparian Buffer LOW LOW (4) Microtopography LOW LOW (3) Stream Stability LOW LOW (4) Channel Stability MEDIUM MEDIUM (4) Sediment Transport LOW LOW (4) Stream Geomorphology LOW LOW (2) Stream/Intertidal Zone Interaction NA NA (2) Longitudinal Tidal Flow NA NA (2) Tidal Marsh Stream Stability NA NA (3) Tidal Marsh Channel Stability NA NA (3) Tidal Marsh Stream Geomorphology NA NA (1) Water Quality HIGH HIGH (2) Baseflow HIGH HIGH (2) Streamside Area Vegetation LOW LOW (3) Upland Pollutant Filtration LOW LOW (3) Thermoregulation LOW LOW (2) Indicators of Stressors NO NO (2) Aquatic Life Tolerance NA NA (2) Intertidal Zone Filtration NA NA (1) Habitat LOW LOW (2) In-stream Habitat LOW LOW (3) Baseflow HIGH HIGH (3) Substrate LOW LOW (3) Stream Stability MEDIUM MEDIUM (3) In-stream Habitat LOW LOW (2) Stream-side Habitat LOW LOW (3) Stream-side Habitat LOW LOW (3) Thermoregulation LOW LOW (2) Tidal Marsh In-stream Habitat NA NA (3) Flow Restriction NA NA (3) Tidal Marsh Stream Stability NA NA (4) Tidal Marsh Channel Stability NA NA (4) Tidal Marsh Stream Geomorphology NA NA (3) Tidal Marsh In-stream Habitat NA NA (2) Intertidal Zone NA NA Overall LOW LOW NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S200- Lower 2. Date of evaluation:9-15-2022 3. Applicant/owner name:Water & Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad:Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):36.002093°, -77.601302° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S200 - upper 10. Length of assessment reach evaluated (feet):380 11. Channel depth from bed (in riffle, if present) to top of bank (feet):1 Unable to assess channel depth. 12. Channel width at top of bank (feet):4 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12.Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13.Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14.Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15.Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16.Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18.Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19.Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20.Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21.Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22.Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23.Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24.Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25.Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S200-Lower Date of Assessment 9-15-2022 Stream Category Ia1 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Intermittent Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology MEDIUM MEDIUM (2) Baseflow HIGH HIGH (2) Flood Flow MEDIUM MEDIUM (3)Streamside Area Attenuation HIGH HIGH (4) Floodplain Access MEDIUM MEDIUM (4) Wooded Riparian Buffer HIGH HIGH (4) Microtopography MEDIUM MEDIUM (3) Stream Stability LOW LOW (4) Channel Stability MEDIUM MEDIUM (4) Sediment Transport LOW LOW (4) Stream Geomorphology LOW LOW (2) Stream/Intertidal Zone Interaction NA NA (2) Longitudinal Tidal Flow NA NA (2) Tidal Marsh Stream Stability NA NA (3) Tidal Marsh Channel Stability NA NA (3) Tidal Marsh Stream Geomorphology NA NA (1) Water Quality HIGH HIGH (2) Baseflow HIGH HIGH (2) Streamside Area Vegetation HIGH HIGH (3) Upland Pollutant Filtration HIGH HIGH (3) Thermoregulation HIGH HIGH (2) Indicators of Stressors NO NO (2) Aquatic Life Tolerance NA NA (2) Intertidal Zone Filtration NA NA (1) Habitat LOW LOW (2) In-stream Habitat LOW LOW (3) Baseflow HIGH HIGH (3) Substrate LOW LOW (3) Stream Stability MEDIUM MEDIUM (3) In-stream Habitat LOW LOW (2) Stream-side Habitat HIGH HIGH (3) Stream-side Habitat HIGH HIGH (3) Thermoregulation HIGH HIGH (2) Tidal Marsh In-stream Habitat NA NA (3) Flow Restriction NA NA (3) Tidal Marsh Stream Stability NA NA (4) Tidal Marsh Channel Stability NA NA (4) Tidal Marsh Stream Geomorphology NA NA (3) Tidal Marsh In-stream Habitat NA NA (2) Intertidal Zone NA NA Overall MEDIUM MEDIUM NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S200- Upper 2. Date of evaluation:9-15-2022 3. Applicant/owner name:Water & Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad:Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):36.003311°, -77.600513° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S200 - upper 10. Length of assessment reach evaluated (feet):330 11. Channel depth from bed (in riffle, if present) to top of bank (feet):1.5 Unable to assess channel depth. 12. Channel width at top of bank (feet):12 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12. Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13. Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14. Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15. Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16. Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18. Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19.Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20.Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21.Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22.Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23.Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24.Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25.Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S200-Upper Date of Assessment 9-15-2022 Stream Category Ia1 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Intermittent Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology MEDIUM MEDIUM (2) Baseflow HIGH HIGH (2) Flood Flow MEDIUM MEDIUM (3)Streamside Area Attenuation HIGH HIGH (4) Floodplain Access MEDIUM MEDIUM (4) Wooded Riparian Buffer HIGH HIGH (4) Microtopography MEDIUM MEDIUM (3) Stream Stability LOW LOW (4) Channel Stability MEDIUM MEDIUM (4) Sediment Transport LOW LOW (4) Stream Geomorphology LOW LOW (2) Stream/Intertidal Zone Interaction NA NA (2) Longitudinal Tidal Flow NA NA (2) Tidal Marsh Stream Stability NA NA (3) Tidal Marsh Channel Stability NA NA (3) Tidal Marsh Stream Geomorphology NA NA (1) Water Quality HIGH HIGH (2) Baseflow HIGH HIGH (2) Streamside Area Vegetation HIGH HIGH (3) Upland Pollutant Filtration HIGH HIGH (3) Thermoregulation HIGH HIGH (2) Indicators of Stressors NO NO (2) Aquatic Life Tolerance NA NA (2) Intertidal Zone Filtration NA NA (1) Habitat LOW LOW (2) In-stream Habitat LOW LOW (3) Baseflow HIGH HIGH (3) Substrate LOW LOW (3) Stream Stability MEDIUM MEDIUM (3) In-stream Habitat LOW LOW (2) Stream-side Habitat HIGH HIGH (3) Stream-side Habitat HIGH HIGH (3) Thermoregulation HIGH HIGH (2) Tidal Marsh In-stream Habitat NA NA (3) Flow Restriction NA NA (3) Tidal Marsh Stream Stability NA NA (4) Tidal Marsh Channel Stability NA NA (4) Tidal Marsh Stream Geomorphology NA NA (3) Tidal Marsh In-stream Habitat NA NA (2) Intertidal Zone NA NA Overall MEDIUM MEDIUM NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S300-lower 2. Date of evaluation: 9-15-2022 3. Applicant/owner name:Water & Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad:Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):35.994990°, -77.603146° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S300-lower 10. Length of assessment reach evaluated (feet):300 11. Channel depth from bed (in riffle, if present) to top of bank (feet):3.5 Unable to assess channel depth. 12. Channel width at top of bank (feet):12 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12.Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13.Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14.Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15.Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16.Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18.Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19.Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20.Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21.Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22.Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23.Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24.Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25.Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S300-lower Date of Assessment 9-15-2022 Stream Category Ia2 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Perennial Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology HIGH (2) Baseflow HIGH (2) Flood Flow HIGH (3) Streamside Area Attenuation HIGH (4) Floodplain Access HIGH (4) Wooded Riparian Buffer HIGH (4) Microtopography MEDIUM (3) Stream Stability HIGH (4) Channel Stability HIGH (4) Sediment Transport HIGH (4) Stream Geomorphology HIGH (2) Stream/Intertidal Zone Interaction NA (2) Longitudinal Tidal Flow NA (2) Tidal Marsh Stream Stability NA (3) Tidal Marsh Channel Stability NA (3) Tidal Marsh Stream Geomorphology NA (1) Water Quality HIGH (2) Baseflow HIGH (2) Streamside Area Vegetation HIGH (3) Upland Pollutant Filtration HIGH (3) Thermoregulation HIGH (2) Indicators of Stressors NO (2) Aquatic Life Tolerance NA (2) Intertidal Zone Filtration NA (1) Habitat HIGH (2) In-stream Habitat HIGH (3) Baseflow HIGH (3) Substrate HIGH (3) Stream Stability HIGH (3) In-stream Habitat MEDIUM (2) Stream-side Habitat HIGH (3) Stream-side Habitat HIGH (3) Thermoregulation HIGH (2) Tidal Marsh In-stream Habitat NA (3) Flow Restriction NA (3) Tidal Marsh Stream Stability NA (4) Tidal Marsh Channel Stability NA (4) Tidal Marsh Stream Geomorphology NA (3) Tidal Marsh In-stream Habitat NA (2) Intertidal Zone NA Overall HIGH NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S300- upper 2. Date of evaluation: 9-15-2022 3. Applicant/owner name: Water & Land Solutions 4. Assessor name/organization: Daniel Ingram 5. County: Edgecombe 6. Nearest named water body on USGS 7.5-minute quad: Swift Creek 7. River basin: White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach): 36.002093°, -77.601302° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map): S200 - upper 10. Length of assessment reach evaluated (feet): 830 11. Channel depth from bed (in riffle, if present) to top of bank (feet): 4 Unable to assess channel depth. 12. Channel width at top of bank (feet): 12 13. Is assessment reach a swamp steam? Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated? Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached? Yes No 1. Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2. Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3. Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4. Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5. Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12. Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13. Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14. Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15. Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16. Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18. Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19.Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20.Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21.Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22.Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23.Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24.Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25.Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S300-upper Date of Assessment 9-15-2022 Stream Category Ia1 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Intermittent Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology LOW LOW (2) Baseflow HIGH HIGH (2) Flood Flow LOW LOW (3)Streamside Area Attenuation MEDIUM MEDIUM (4) Floodplain Access MEDIUM MEDIUM (4) Wooded Riparian Buffer MEDIUM MEDIUM (4) Microtopography LOW LOW (3) Stream Stability LOW LOW (4) Channel Stability MEDIUM MEDIUM (4)Sediment Transport LOW LOW (4) Stream Geomorphology LOW LOW (2) Stream/Intertidal Zone Interaction NA NA (2) Longitudinal Tidal Flow NA NA (2) Tidal Marsh Stream Stability NA NA (3) Tidal Marsh Channel Stability NA NA (3) Tidal Marsh Stream Geomorphology NA NA (1) Water Quality HIGH HIGH (2) Baseflow HIGH HIGH (2) Streamside Area Vegetation MEDIUM MEDIUM (3) Upland Pollutant Filtration MEDIUM MEDIUM (3) Thermoregulation MEDIUM MEDIUM (2)Indicators of Stressors NO NO (2) Aquatic Life Tolerance NA NA (2) Intertidal Zone Filtration NA NA (1) Habitat LOW LOW (2) In-stream Habitat LOW LOW (3) Baseflow HIGH HIGH (3) Substrate LOW LOW (3) Stream Stability MEDIUM MEDIUM (3) In-stream Habitat LOW LOW (2) Stream-side Habitat LOW LOW (3) Stream-side Habitat MEDIUM MEDIUM (3) Thermoregulation LOW LOW (2) Tidal Marsh In-stream Habitat NA NA (3) Flow Restriction NA NA (3)Tidal Marsh Stream Stability NA NA (4) Tidal Marsh Channel Stability NA NA (4) Tidal Marsh Stream Geomorphology NA NA (3) Tidal Marsh In-stream Habitat NA NA (2) Intertidal Zone NA NA Overall LOW LOW NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S500 2. Date of evaluation:9-15-2022 3. Applicant/owner name:Water & Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad:Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):35.995367°, -77.606366° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S500 10.Length of assessment reach evaluated (feet):300 11. Channel depth from bed (in riffle, if present) to top of bank (feet):1.5 Unable to assess channel depth. 12.Channel width at top of bank (feet):10 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12. Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13. Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14. Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15. Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16. Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18. Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19.Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20.Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21.Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22.Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23.Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24.Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25.Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S500 Date of Assessment 9-15-2022 Stream Category Ia2 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Perennial Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology HIGH (2) Baseflow HIGH (2) Flood Flow HIGH (3) Streamside Area Attenuation HIGH (4) Floodplain Access HIGH (4) Wooded Riparian Buffer HIGH (4) Microtopography HIGH (3) Stream Stability HIGH (4) Channel Stability HIGH (4) Sediment Transport HIGH (4) Stream Geomorphology HIGH (2) Stream/Intertidal Zone Interaction NA (2) Longitudinal Tidal Flow NA (2) Tidal Marsh Stream Stability NA (3) Tidal Marsh Channel Stability NA (3) Tidal Marsh Stream Geomorphology NA (1) Water Quality HIGH (2) Baseflow HIGH (2) Streamside Area Vegetation HIGH (3) Upland Pollutant Filtration HIGH (3) Thermoregulation HIGH (2) Indicators of Stressors NO (2) Aquatic Life Tolerance NA (2) Intertidal Zone Filtration NA (1) Habitat HIGH (2) In-stream Habitat HIGH (3) Baseflow HIGH (3) Substrate HIGH (3) Stream Stability HIGH (3) In-stream Habitat HIGH (2) Stream-side Habitat HIGH (3) Stream-side Habitat HIGH (3) Thermoregulation HIGH (2) Tidal Marsh In-stream Habitat NA (3) Flow Restriction NA (3) Tidal Marsh Stream Stability NA (4) Tidal Marsh Channel Stability NA (4) Tidal Marsh Stream Geomorphology NA (3) Tidal Marsh In-stream Habitat NA (2) Intertidal Zone NA Overall HIGH NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S600 2. Date of evaluation:9-15-2022 3. Applicant/owner name:Water & Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad:Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):35.991081°, -77.610516° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S600 10.Length of assessment reach evaluated (feet):300 11. Channel depth from bed (in riffle, if present) to top of bank (feet):1.5 Unable to assess channel depth. 12.Channel width at top of bank (feet):10 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12.Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13.Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14.Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15.Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16.Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18.Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19. Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20. Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21. Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22. Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23. Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24. Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25. Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S600 Date of Assessment 9-15-2022 Stream Category Ia3 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Perennial Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology HIGH (2) Baseflow HIGH (2) Flood Flow HIGH (3) Streamside Area Attenuation HIGH (4) Floodplain Access HIGH (4) Wooded Riparian Buffer HIGH (4) Microtopography HIGH (3) Stream Stability HIGH (4) Channel Stability HIGH (4) Sediment Transport HIGH (4) Stream Geomorphology HIGH (2) Stream/Intertidal Zone Interaction NA (2) Longitudinal Tidal Flow NA (2) Tidal Marsh Stream Stability NA (3) Tidal Marsh Channel Stability NA (3) Tidal Marsh Stream Geomorphology NA (1) Water Quality HIGH (2) Baseflow HIGH (2) Streamside Area Vegetation HIGH (3) Upland Pollutant Filtration HIGH (3) Thermoregulation HIGH (2) Indicators of Stressors NO (2) Aquatic Life Tolerance NA (2) Intertidal Zone Filtration NA (1) Habitat HIGH (2) In-stream Habitat HIGH (3) Baseflow HIGH (3) Substrate HIGH (3) Stream Stability HIGH (3) In-stream Habitat HIGH (2) Stream-side Habitat HIGH (3) Stream-side Habitat HIGH (3) Thermoregulation HIGH (2) Tidal Marsh In-stream Habitat NA (3) Flow Restriction NA (3) Tidal Marsh Stream Stability NA (4) Tidal Marsh Channel Stability NA (4) Tidal Marsh Stream Geomorphology NA (3) Tidal Marsh In-stream Habitat NA (2) Intertidal Zone NA Overall HIGH NC SAM FIELD ASSESSMENT RESULTS Accompanies User Manual Version 2.1 USACE AID #: NCDWR #: INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions and explanations of requested information. Record in the “Notes/Sketch” section if supplementary measurements were performed. See the NC SAM User Manual for examples of additional measurements that may be relevant. NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area). PROJECT/SITE INFORMATION: 1. Project name (if any): Swiftie Mitigation Project - S700 2. Date of evaluation:9-15-2022 3. Applicant/owner name:Water & Land Solutions 4. Assessor name/organization:Daniel Ingram 5. County:Edgecombe 6. Nearest named water body on USGS 7.5-minute quad:Swift Creek 7. River basin:White Oak 8. Site coordinates (decimal degrees, at lower end of assessment reach):35.996781°, -77.614483° STREAM INFORMATION: (depth and width can be approximations) 9. Site number (show on attached map):S700 10.Length of assessment reach evaluated (feet):300 11. Channel depth from bed (in riffle, if present) to top of bank (feet):1 Unable to assess channel depth. 12.Channel width at top of bank (feet):8 13. Is assessment reach a swamp steam?Yes No 14. Feature type: Perennial flow Intermittent flow Tidal Marsh Stream STREAM CATEGORY INFORMATION: 15. NC SAM Zone: Mountains (M) Piedmont (P) Inner Coastal Plain (I) Outer Coastal Plain (O) 16. Estimated geomorphic 19 valley shape (skip for Tidal Marsh Stream): A B (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope) 17. Watershed size: (skip Size 1 (< 0.1 mi2) Size 2 (0.1 to < 0.5 mi2) Size 3 (0.5 to < 5 mi2) Size 4 (≥ 5 mi2) for Tidal Marsh Stream) ADDITIONAL INFORMATION: 18. Were regulatory considerations evaluated?Yes No If Yes, check all that apply to the assessment area. Section 10 water Classified Trout Waters Water Supply Watershed (I II III IV V) Essential Fish Habitat Primary Nursery Area High Quality Waters/Outstanding Resource Waters Publicly owned property NCDWR Riparian buffer rule in effect Nutrient Sensitive Waters Anadromous fish 303(d) List CAMA Area of Environmental Concern (AEC) Documented presence of a federal and/or state listed protected species within the assessment area. List species: Designated Critical Habitat (list species) 19. Are additional stream information/supplementary measurements included in “Notes/Sketch” section or attached?Yes No 1.Channel Water – assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams) A Water throughout assessment reach. B No flow, water in pools only. C No water in assessment reach. 2.Evidence of Flow Restriction – assessment reach metric A At least 10% of assessment reach in-stream habitat or riffle-pool sequence is severely affected by a flow restriction or fill to the point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams, beaver dams). B Not A 3.Feature Pattern – assessment reach metric A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert). B Not A 4.Feature Longitudinal Profile – assessment reach metric A Majority of assessment reach has a substantially altered stream profile (examples: channel down-cutting, existing damming, over widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these disturbances). B Not A 5.Signs of Active Instability – assessment reach metric Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include active bank failure, active channel down-cutting (head-cut), active widening, and artificial hardening (such as concrete, gabion, rip-rap). A < 10% of channel unstable B 10 to 25% of channel unstable C > 25% of channel unstable 6.Streamside Area Interaction – streamside area metric Consider for the Left Bank (LB) and the Right Bank (RB). LB RB A A Little or no evidence of conditions that adversely affect reference interaction B B Moderate evidence of conditions (examples: berms, levees, down-cutting, aggradation, dredging) that adversely affect reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching]) C C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access [examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an interstream divide 7.Water Quality Stressors – assessment reach/intertidal zone metric Check all that apply. A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam) B Excessive sedimentation (burying of stream features or intertidal zone) C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem D Odor (not including natural sulfide odors) E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in “Notes/Sketch” section. F Livestock with access to stream or intertidal zone G Excessive algae in stream or intertidal zone H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc) I Other: (explain in “Notes/Sketch” section) J Little to no stressors 8.Recent Weather – watershed metric (skip for Tidal Marsh Streams) For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought. A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours B Drought conditions and rainfall exceeding 1 inch within the last 48 hours C No drought conditions 9.Large or Dangerous Stream – assessment reach metric Yes No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition). 10.Natural In-stream Habitat Types – assessment reach metric 10a. Yes No Degraded in-stream habitat over majority of the assessment reach (examples of stressors include excessive sedimentation, mining, excavation, in-stream hardening [for example, rip-rap], recent dredging, and snagging) (evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12) 10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams) A Multiple aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) B Multiple sticks and/or leaf packs and/or emergent vegetation C Multiple snags and logs (including lap trees) D 5% undercut banks and/or root mats and/or roots in banks extend to the normal wetted perimeter E Little or no habitat F 5% oysters or other natural hard bottoms G Submerged aquatic vegetation H Low-tide refugia (pools) I Sand bottom J 5% vertical bank along the marsh K Little or no habitat *********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************** 11.Bedform and Substrate – assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) 11a. Yes No Is assessment reach in a natural sand-bed stream? (skip for Coastal Plain streams) 11b. Bedform evaluated. Check the appropriate box(es). A Riffle-run section (evaluate 11c) B Pool-glide section (evaluate 11d) C Natural bedform absent (skip to Metric 12, Aquatic Life) 11c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach – whether or not submerged. Check at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare (R) = present but < 10%, Common (C) = > 10-40%, Abundant (A) = > 40-70%, Predominant (P) = > 70%. Cumulative percentages should not exceed 100% for each assessment reach. NP R C A P Bedrock/saprolite Boulder (256 – 4096 mm) Cobble (64 – 256 mm) Gravel (2 – 64 mm) Sand (.062 – 2 mm) Silt/clay (< 0.062 mm) Detritus Artificial (rip-rap, concrete, etc.) 11d. Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams) Ch e c k f o r T id a l Ma r s h S t r e a m s On l y 12.Aquatic Life – assessment reach metric (skip for Tidal Marsh Streams) 12a. Yes No Was an in-stream aquatic life assessment performed as described in the User Manual? If No, select one of the following reasons and skip to Metric 13. No Water Other: 12b. Yes No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that apply. If No, skip to Metric 13. 1 >1 Numbers over columns refer to “individuals” for Size 1 and 2 streams and “taxa” for Size 3 and 4 streams. Adult frogs Aquatic reptiles Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats) Beetles Caddisfly larvae (T) Asian clam (Corbicula) Crustacean (isopod/amphipod/crayfish/shrimp) Damselfly and dragonfly larvae Dipterans Mayfly larvae (E) Megaloptera (alderfly, fishfly, dobsonfly larvae) Midges/mosquito larvae Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea) Mussels/Clams (not Corbicula) Other fish Salamanders/tadpoles Snails Stonefly larvae (P) Tipulid larvae Worms/leeches 13.Streamside Area Ground Surface Condition – streamside area metric (skip for Tidal Marsh Streams and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff. LB RB A A Little or no alteration to water storage capacity over a majority of the streamside area B B Moderate alteration to water storage capacity over a majority of the streamside area C C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction, livestock disturbance, buildings, man-made levees, drainage pipes) 14.Streamside Area Water Storage – streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types) Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area. LB RB A A Majority of streamside area with depressions able to pond water ≥ 6 inches deep B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep C C Majority of streamside area with depressions able to pond water < 3 inches deep 15.Wetland Presence – streamside area metric (skip for Tidal Marsh Streams) Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal wetted perimeter of assessment reach. LB RB Y Y Are wetlands present in the streamside area? N N 16.Baseflow Contributors – assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams) Check all contributors within the assessment reach or within view of and draining to the assessment reach. A Streams and/or springs (jurisdictional discharges) B Ponds (include wet detention basins; do not include sediment basins or dry detention basins) C Obstruction passing flow during low-flow periods within the assessment area (beaver dam, leaky dam, bottom-release dam, weir) D Evidence of bank seepage or sweating (iron in water indicates seepage) E Stream bed or bank soil reduced (dig through deposited sediment if present) F None of the above 17. Baseflow Detractors – assessment area metric (skip for Tidal Marsh Streams) Check all that apply. A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation) B Obstruction not passing flow during low-flow periods affecting the assessment reach (ex: watertight dam, sediment deposit) C Urban stream (≥ 24% impervious surface for watershed) D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach E Assessment reach relocated to valley edge F None of the above 18.Shading – assessment reach metric (skip for Tidal Marsh Streams) Consider aspect. Consider “leaf-on” condition. A Stream shading is appropriate for stream category (may include gaps associated with natural processes) B Degraded (example: scattered trees) C Stream shading is gone or largely absent 19. Buffer Width – streamside area metric (skip for Tidal Marsh Streams) Consider “vegetated buffer” and “wooded buffer” separately for left bank (LB) and right bank (RB) starting at the top of bank out to the first break. Vegetated Wooded LB RB LB RB A A A A ≥ 100 feet wide or extends to the edge of the watershed B B B B From 50 to < 100 feet wide C C C C From 30 to < 50 feet wide D D D D From 10 to < 30 feet wide E E E E < 10 feet wide or no trees 20. Buffer Structure – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Vegetated” Buffer Width). LB RB A A Mature forest B B Non-mature woody vegetation or modified vegetation structure C C Herbaceous vegetation with or without a strip of trees < 10 feet wide D D Maintained shrubs E E Little or no vegetation 21. Buffer Stressors – streamside area metric (skip for Tidal Marsh Streams) Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet). If none of the following stressors occurs on either bank, check here and skip to Metric 22: Abuts < 30 feet 30-50 feet LB RB LB RB LB RB A A A A A A Row crops B B B B B B Maintained turf C C C C C C Pasture (no livestock)/commercial horticulture D D D D D D Pasture (active livestock use) 22. Stem Density – streamside area metric (skip for Tidal Marsh Streams) Consider for left bank (LB) and right bank (RB) for Metric 19 (“Wooded” Buffer Width). LB RB A A Medium to high stem density B B Low stem density C C No wooded riparian buffer or predominantly herbaceous species or bare ground 23. Continuity of Vegetated Buffer – streamside area metric (skip for Tidal Marsh Streams) Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide. LB RB A A The total length of buffer breaks is < 25 percent. B B The total length of buffer breaks is between 25 and 50 percent. C C The total length of buffer breaks is > 50 percent. 24. Vegetative Composition – streamside area metric (skip for Tidal Marsh Streams) Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to assessment reach habitat. LB RB A A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species, with non-native invasive species absent or sparse. B B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native species. This may include communities of weedy native species that develop after clear-cutting or clearing or communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or communities missing understory but retaining canopy trees. C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities with non-native invasive species dominant over a large portion of expected strata or communities composed of planted stands of non-characteristic species or communities inappropriately composed of a single species or no vegetation. 25. Conductivity – assessment reach metric (skip for all Coastal Plain streams) 25a. Yes No Was conductivity measurement recorded? If No, select one of the following reasons. No Water Other: 25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter). A < 46 B 46 to < 67 C 67 to < 79 D 79 to < 230 E ≥ 230 Notes/Sketch: Draft NC SAM Stream Rating Sheet Accompanies User Manual Version 2.1 Stream Site Name Swiftie Mitigation Project - S700 Date of Assessment 9-15-2022 Stream Category Ia1 Assessor Name/Organization Daniel Ingram Notes of Field Assessment Form (Y/N) NO Presence of regulatory considerations (Y/N) NO Additional stream information/supplementary measurements included (Y/N) NO NC SAM feature type (perennial, intermittent, Tidal Marsh Stream) Intermittent Function Class Rating Summary USACE/ All Streams NCDWR Intermittent (1) Hydrology HIGH HIGH (2) Baseflow HIGH HIGH (2) Flood Flow HIGH HIGH (3)Streamside Area Attenuation HIGH HIGH (4) Floodplain Access HIGH HIGH (4) Wooded Riparian Buffer HIGH HIGH (4) Microtopography HIGH HIGH (3) Stream Stability HIGH HIGH (4) Channel Stability HIGH HIGH (4) Sediment Transport HIGH HIGH (4) Stream Geomorphology HIGH HIGH (2) Stream/Intertidal Zone Interaction NA NA (2) Longitudinal Tidal Flow NA NA (2) Tidal Marsh Stream Stability NA NA (3) Tidal Marsh Channel Stability NA NA (3) Tidal Marsh Stream Geomorphology NA NA (1) Water Quality HIGH HIGH (2) Baseflow HIGH HIGH (2) Streamside Area Vegetation HIGH HIGH (3) Upland Pollutant Filtration HIGH HIGH (3) Thermoregulation HIGH HIGH (2) Indicators of Stressors NO NO (2)Aquatic Life Tolerance NA NA (2) Intertidal Zone Filtration NA NA (1) Habitat HIGH HIGH (2) In-stream Habitat HIGH HIGH (3) Baseflow HIGH HIGH (3) Substrate HIGH HIGH (3) Stream Stability HIGH HIGH (3) In-stream Habitat HIGH HIGH (2) Stream-side Habitat HIGH HIGH (3) Stream-side Habitat HIGH HIGH (3) Thermoregulation HIGH HIGH (2) Tidal Marsh In-stream Habitat NA NA (3) Flow Restriction NA NA (3) Tidal Marsh Stream Stability NA NA (4) Tidal Marsh Channel Stability NA NA (4) Tidal Marsh Stream Geomorphology NA NA (3) Tidal Marsh In-stream Habitat NA NA (2) Intertidal Zone NA NA Overall HIGH HIGH Appendix F - WOTUS Information Swiftie Mitigation Project Page 1 of 2 U.S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action Id. SAW-2019-00631 County: EDGECOMBE U.S.G.S. Quad: DRAUGHN NOTIFICATION OF JURISDICTIONAL DETERMINATION Requestor: Palustrine Group, LLC Address: Post Office Box 603 Pittsboro, North Carolina 27312 Size (acres) ~593 Nearest Town Leggett Nearest Waterway White Oak Swamp River Basin Tar River USGS HUC 03020101 Coordinates Latitude: 36.997454 Longitude: -77.606565 Location description: The project area is identified as an approximate 593 acre tract of land, located between NC Highway 97 and NC Highway 33, near Leggett, Edgecombe County, North Carolina. Waters on-site drain into White Oak Swamp and Swift Creek; all tributaries of the Tar River (8-digit HUC: 03020101) Indicate Which of the Following Apply: A. Preliminary Determination X There are waters, including wetlands, on the above described project area, that may be subject to Section 404 of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403). The waters, including wetlands, have been delineated, and the delineation has been verified by the Corps to be sufficiently accurate and reliable. Therefore this preliminary jurisdiction determination may be used in the permit evaluation process, including determining compensatory mitigation. For purposes of computation of impacts, compensatory mitigation requirements, and other resource protection measures, a permit decision made on the basis of a preliminary JD will treat all waters and wetlands that would be affected in any way by the permitted activity on the site as if they are jurisdictional waters of the U.S. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331). However, you may request an approved JD, which is an appealable action, by contacting the Corps district for further instruction. There are wetlands on the above described property, that may be subject to Section 404 of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403). However, since the waters, including wetlands, have not been properly delineated, this preliminary jurisdiction determination may not be used in the permit evaluation process. Without a verified wetland delineation, this preliminary determination is merely an effective presumption of CWA/RHA jurisdiction over all of the waters, including wetlands, at the project area, which is not sufficiently accurate and reliable to support an enforceable permit decision. We recommend that you have the waters of the U.S. on your property delineated. As the Corps may not be able to accomplish this wetland delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that can be verified by the Corps. B. Approved Determination There are Navigable Waters of the United States within the above described property subject to the permit requirements of Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403) and Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. There are waters of the U.S., including wetlands, on the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA) (33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. We recommend you have the waters of the U.S. on your property delineated. As the Corps may not be able to accomplish this wetland delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that can be verified by the Corps. SAW-2019-00631 SWIFT CREEK MITIGATION SITE The waters of the U.S., including wetlands, on your project area have been delineated and the delineation has been verified by the Corps. We strongly suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. Once verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years. The waters of the U.S., including wetlands, have been delineated and surveyed and are accurately depicted on the plat signed by the Corps Regulatory Official identified below on . Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. There are no waters of the U.S., to include wetlands, present on the above described project area which are subject to the permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA). You should contact the Division of Coastal Management in Morehead City, NC, at (252) 808-2808 to determine their requirements. Placement of dredged or fill material within waters of the US, including wetlands, without a Department of the Army permit may constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). Placement of dredged or fill material, construction or placement of structures, or work within navigable waters of the United States without a Department of the Army permit may constitute a violation of Sections 9 and/or 10 of the Rivers and Harbors Act (33 USC § 401 and/or 403). If you have any questions regarding this determination and/or the Corps regulatory program, please contact Ms. Samantha Dailey at 919-554-4884, ext. 22 or by email at Samantha.J.Dailey@usace.army.mil. C. Basis For Determination: N/A. An Approved JD has not been completed. D. Remarks: Refer to the enclosed Preliminary JD Form, and the enclosed Figure 6. Jurisdictional Waters Map for a detailed evaluation of the aquatic resources on-site. E. Attention USDA Program Participants This delineation/determination has been conducted to identify the limits of Corps’ Clean Water Act jurisdiction for the particular site identified in this request. The delineation/determination may not be valid for the wetland conservation provisions of the Food Security Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work. F. Appeals Information for Approved Jurisdiction Determinations (as indicated in Section B. above) If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed you will find a Notification of Appeal Process (NAP) fact sheet and Request for Appeal (RFA) form. If you request to appeal this determination you must submit a completed RFA form to the following address: US Army Corps of Engineers South Atlantic Division Attn: Jason Steele, Review Officer 60 Forsyth Street SW, Room 10M15 Atlanta, Georgia 30303-8801 In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you decide to submit an RFA form, it must be received at the above address by . SAW-2019-00631 SWIFT CREEK MITIGATION SITE It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence. Corps Regulatory Official: ______________________________________________________ Date: April 15, 2019 Expiration Date: N/A The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so, please complete our Customer Satisfaction Survey, located online at http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0. DAILEY.SAMANTHA.J .1387567948 Digitally signed by DAILEY.SAMANTHA.J.1387567948 Date: 2019.04.15 11:41:38 -04'00' SAW-2019-00631 SWIFT CREEK MITIGATION SITE NOTIFICATION OF ADMINISTRATIVE APPEAL OPTIONS AND PROCESS AND REQUEST FOR APPEAL Applicant: Palustrine Group, LLC File Number: SAW-2019-00631 Date: April 15, 2019 Attached is: See Section below INITIAL PROFFERED PERMIT (Standard Permit or Letter of permission) A PROFFERED PERMIT (Standard Permit or Letter of permission) B PERMIT DENIAL C APPROVED JURISDICTIONAL DETERMINATION D PRELIMINARY JURISDICTIONAL DETERMINATION E SECTION I - The following identifies your rights and options regarding an administrative appeal of the above decision. Additional information may be found at http://www.usace.army.mil/Missions/CivilWorks/RegulatoryProgramandPermits.aspx or Corps regulations at 33 CFR Part 331. A: INITIAL PROFFERED PERMIT: You may accept or object to the permit. x ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. x OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that the permit be modified accordingly. You must complete Section II of this form and return the form to the district engineer. Your objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify the permit having determined that the permit should be issued as previously written. After evaluating your objections, the district engineer will send you a proffered permit for your reconsideration, as indicated in Section B below. B: PROFFERED PERMIT: You may accept or appeal the permit x ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. x APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein, you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or provide new information. x ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of this notice means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD. x APPEAL: If you disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. SAW-2019-00631 SWIFT CREEK MITIGATION SITE E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps regarding the preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an approved JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new information for further consideration by the Corps to reevaluate the JD. SECTION II - REQUEST FOR APPEAL or OBJECTIONS TO AN INITIAL PROFFERED PERMIT REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an initial proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons or objections are addressed in the administrative record.) ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record. However, you may provide additional information to clarify the location of information that is already in the administrative record. POINT OF CONTACT FOR QUESTIONS OR INFORMATION: If you have questions regarding this decision and/or the appeal process you may contact: District Engineer, Wilmington Regulatory Division Raleigh Regulatory Field Office Attn: Samantha Dailey 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 If you only have questions regarding the appeal process you may also contact: Mr. Jason Steele, Administrative Appeal Review Officer CESAD-PDO U.S. Army Corps of Engineers, South Atlantic Division 60 Forsyth Street, Room 10M15 Atlanta, Georgia 30303-8801 Phone: (404) 562-5137 RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15 day notice of any site investigation, and will have the opportunity to participate in all site investigations. ________________________________________ Signature of appellant or agent. Date: Telephone number: For appeals on Initial Proffered Permits send this form to: District Engineer, Wilmington Regulatory Division, Attn: Ms. Samantha Dailey, 69 Darlington Avenue, Wilmington, North Carolina 28403 For Permit denials, Proffered Permits and approved Jurisdictional Determinations send this form to: Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Jason Steele, Administrative Appeal Officer, CESAD-PDO, 60 Forsyth Street, Room 10M15, Atlanta, Georgia 30303-8801 Phone: (404) 562-5137 APPENDIX 2 PRELIMINARY JURISDICTIONAL DETERMINATION FORM BACKGROUND INFORMATION A. REPORT COMPLETION DATE FOR PRELIMINARY JURISDICTIONAL DETERMINATION (JD): April 15, 2019 B. NAME AND ADDRESS OF PERSON REQUESTING PRELIMINARY JD: Requestor: Palustrine Group, LLC Address: Post Office Box 603 Pittsboro, North Carolina 27312 C. DISTRICT OFFICE, FILE NAME, AND NUMBER: Wilmington District, Swift Creek Mitigation Site, Palustrine Group, LLC, Edgecombe County, SAW-2019-00631 D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION: (USE THE ATTACHED TABLE TO DOCUMENT MULTIPLE WATERBODIES AT DIFFERENT SITES) State: NC County/parish/borough: Edgecombe County City: Leggett Center coordinates of site (lat/long in degree decimal format): Lat. 36.997454°N, Long. -77.606565° W. Universal Transverse Mercator: Name of nearest water body: Tar River (8-digit HUC: 03020101) E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLIES): Office (Desk) Determination. Date: April 15, 2019 Field Determination. Date(s): January 2017 1. The Corps of Engineers believes that there may be jurisdictional aquatic resources in the review area, and the requestor of this PJD is hereby advised of his or her option to request and obtain an approved JD (AJD) for that review area based on an informed decision after having discussed the various types of JDs and their characteristics and circumstances when they may be appropriate. 2. In any circumstance where a permit applicant obtains an individual permit, or a Nationwide General Permit (NWP) or other general permit verification requiring “pre-construction notification” (PCN), or requests verification for a non-reporting NWP or other general permit, and the permit applicant has not requested an AJD for the activity, the permit applicant is hereby made aware that: (1) the permit applicant has elected to seek a permit authorization based on a PJD, which does not make an official determination of jurisdictional aquatic resources; (2) the applicant has the option to request an AJD before accepting the terms and conditions of the permit authorization, and that basing a permit authorization on an AJD could possibly result in less compensatory mitigation being required or different special conditions; (3) the applicant has the right to request an individual permit rather than accepting the terms and conditions of the NWP or other general permit authorization; (4) the applicant can accept a permit authorization and thereby agree to comply with all the terms and conditions of that permit, including whatever mitigation requirements the Corps has determined to be necessary; (5) undertaking any activity in reliance upon the subject permit authorization without requesting an AJD constitutes the applicant’s acceptance of the use of the PJD; (6) accepting a permit authorization (e.g., signing a proffered individual permit) or undertaking any activity in reliance on any form of Corps permit authorization based on a PJD constitutes agreement that all aquatic resources in the review area affected in any way by that activity will be treated as jurisdictional, and waives any challenge to such jurisdiction in any administrative or judicial compliance or enforcement action, or in any administrative appeal or in any Federal court; and (7)whether the applicant elects to use either an AJD or a PJD, the JD will be processed as soon as practicable. Further, an AJD, a proffered individual permit (and all terms and conditions contained therein), or individual permit denial can be administratively appealed pursuant to 33 C.F.R. Part 331. If, during an administrative appeal, it becomes appropriate to make an official determination whether geographic jurisdiction exists over aquatic resources in the review area, or to provide an official delineation of jurisdictional aquatic resources in the review area, the Corps will provide an AJD to accomplish that result, as soon as is practicable. This PJD finds that there “may be” waters of the U.S. and/or that there “may be” navigable waters of the U.S. on the subject review area, and identifies all aquatic features in the review area that could be affected by the proposed activity, based on the following information: SUPPORTING DATA. Data reviewed for preliminary JD (check all that apply): Checked items should be included in subject file. Appropriately reference sources below where indicated for all checked items: 1 Districts may establish timeframes for requestor to return signed PJD forms. If the requestor does not respond within the established time frame, the district may presume concurrence and no additional follow up is necessary prior to finalizing an action. Maps, plans, plots or plat submitted by or on behalf of the PJD requestor: Palustrine Group, LLC submitted a jurisdictional determination to our office in May 2017. Data sheets prepared/submitted by or on behalf of the PJD requestor. Office concurs with data sheets/delineation report. Office does not concur with data sheets/delineation report. Data sheets prepared by the Corps: . Corps navigable waters’ study: . U.S. Geological Survey Hydrologic Atlas: . USGS NHD data. USGS 8 and 12 digit HUC maps. U.S. Geological Survey map(s). Cite scale & quad name: 1:24K, NC-Draughn USDA Natural Resources Conservation Service Soil Survey. Citation: Web Soil Survey: January 2017. National wetlands inventory map(s). Cite name: Corps of Engineers SimSuite – January 2017. State/Local wetland inventory map(s): . FEMA/FIRM maps: . 100-year Floodplain Elevation is: (National Geodetic Vertical Datum of 1929) Photographs: Aerial (Name & Date): . or Other (Name & Date): . Previous determination(s). File no. and date of response letter: . Other information (please specify): . IMPORTANT NOTE: The information recorded on this form has not necessarily been verified by the Corps and should not be relied upon for later jurisdictional determinations. _________________________ __________________________ Signature and date of Signature and date of Regulatory Project Manager person requesting preliminary JD (REQUIRED) (REQUIRED, unless obtaining the signature is Impracticable) DAILEY.SAMA NTHA.J.138756 7948 Digitally signed by DAILEY.SAMANTHA.J.138 7567948 Date: 2019.04.15 11:39:46 -04'00' Waters_Name Cowardin_Code HGM_Code Meas_Type Amount Units Waters_Type Latitude Longitude Wetland 1 PFO DEPRESS Area 12.65 ACRE DELINEATE 36.00189266 -77.60004634 Wetland 2 PFO DEPRESS Area 2.83 ACRE DELINEATE 36.00538919 -77.60662202 Wetland 6 PFO DEPRESS Area 164.81 ACRE DELINEATE 35.99874203 -77.60965487 Wetland 7 PFO DEPRESS Area 3.17 ACRE DELINEATE 35.99886832 -77.6150322 Wetland 8 PFO DEPRESS Area 0.17 ACRE DELINEATE 35.99353759 -77.60954705 UT-A R4 RIVERINE Linear 6761 FOOT DELINEATE 36.003274 -77.60762 UT-A2 R4 RIVERINE Linear 962 FOOT DELINEATE 35.99522873 -77.60655554 UT-A2a R6 RIVERINE Linear 1107 FOOT DELINEATE 35.99202743 -77.60785587 UT-A3 R4 RIVERINE Linear 1390 FOOT DELINEATE 35.99038359 -77.60938663 UT-B R3 RIVERINE Linear 1662 FOOT DELINEATE 36.002349 -77.61214 UT-C R4 RIVERINE Linear 473 FOOT DELINEATE 35.99916105 -77.60590432 UT-D R4 RIVERINE Linear 2619 FOOT DELINEATE 35.99666818 -77.60185663 UT-E R4 RIVERINE Linear 582 FOOT DELINEATE 36.00363082 -77.60052288 UT-F R6 RIVERINE Linear 787 FOOT DELINEATE 35.99162254 -77.61091152 UT-G R6 RIVERINE Linear 1082 FOOT DELINEATE 35.99350434 -77.60990616 UT-H (14)R4 RIVERINE Linear 642 FOOT DELINEATE 35.99487031 -77.59821667 UT-I R4 RIVERINE Linear 477 FOOT DELINEATE 36.004962 -77.60754 UT-J R4 RIVERINE Linear 802 FOOT DELINEATE 35.99693689 -77.6135545 UT-K1 R3 RIVERINE Linear 598 FOOT DELINEATE 36.000804 -77.61376 UT-K2 R3 RIVERINE Linear 151 FOOT DELINEATE 36.000326 -77.61407 Ditch 1 R6 RIVERINE Linear 830 FOOT DELINEATE 36.005191 -77.60412 Ditch 2 R6 RIVERINE Linear 673 FOOT DELINEATE 36.004419 -77.60358 Ditch 3 R6 RIVERINE Linear 700 FOOT DELINEATE 36.002813 -77.60934 Ditch 4 R6 RIVERINE Linear 344 FOOT DELINEATE 36.003294 -77.60921 Ditch 5 R6 RIVERINE Linear 1186 FOOT DELINEATE 36.001178 -77.61057 Ditch 6 R6 RIVERINE Linear 1453 FOOT DELINEATE 35.999089 -77.60769 Ditch 7 R6 RIVERINE Linear 512 FOOT DELINEATE 36.00149647 -77.60510101 Ditch 8 R6 RIVERINE Linear 1496 FOOT DELINEATE 36.00061605 -77.60563947 Ditch 9 R6 RIVERINE Linear 1104 FOOT DELINEATE 35.99820554 -77.60591717 Ditch 10 R6 RIVERINE Linear 1137 FOOT DELINEATE 35.994827 -77.60838197 Ditch 11 R6 RIVERINE Linear 94 FOOT DELINEATE 35.99513972 -77.60960731 Ditch 12 R6 RIVERINE Linear 158 FOOT DELINEATE 35.99444705 -77.60923373 Ditch 13 R6 RIVERINE Linear 261 FOOT DELINEATE 35.99470117 -77.60778056 Ditch 14 R6 RIVERINE Linear 1648 FOOT DELINEATE 35.99200564 -77.60591366 Ditch 15 R6 RIVERINE Linear 2379 FOOT DELINEATE 36.00074164 -77.60087448 Ditch 16 R6 RIVERINE Linear 694 FOOT DELINEATE 36.00178872 -77.60261636 Ditch 17 R6 RIVERINE Linear 598 FOOT DELINEATE 36.00099793 -77.60270194 Ditch 18 R6 RIVERINE Linear 1437 FOOT DELINEATE 36.00208248 -77.60093925 Ditch 19 R6 RIVERINE Linear 742 FOOT DELINEATE 36.00146481 -77.59925073 Ditch 21 R6 RIVERINE Linear 870 FOOT DELINEATE 36.00120284 -77.59642404 Ditch 22 R6 RIVERINE Linear 867 FOOT DELINEATE 36.00005797 -77.59714172 Ditch 23 R6 RIVERINE Linear 511 FOOT DELINEATE 36.00097489 -77.59720966 Ditch 24 R6 RIVERINE Linear 481 FOOT DELINEATE 36.00038377 -77.59789421 Ditch 25 R6 RIVERINE Linear 789 FOOT DELINEATE 35.99953176 -77.59658245 Ditch 26 R6 RIVERINE Linear 934 FOOT DELINEATE 35.99861452 -77.59698282 Ditch 27 (11a)R6 RIVERINE Linear 768 FOOT DELINEATE 35.99598738 -77.59744274 Ditch 28 R6 RIVERINE Linear 2161 FOOT DELINEATE 35.99776809 -77.6123882 Ditch 29 R6 RIVERINE Linear 247 FOOT DELINEATE 35.998514 -77.61199 Ditch 30 R6 RIVERINE Linear 212 FOOT DELINEATE 35.998147 -77.61228 Ditch 31 R6 RIVERINE Linear 454 FOOT DELINEATE 35.997846 -77.61143 Ditch 32 R6 RIVERINE Linear 570 FOOT DELINEATE 35.9988321 -77.60662375 Ditch 33 R6 RIVERINE Linear 160 FOOT DELINEATE 36.004583 -77.60697 Ditch 34 R6 RIVERINE Linear 640 FOOT DELINEATE 35.99621958 -77.60534943 Ditch 35 R6 RIVERINE Linear 841 FOOT DELINEATE 35.99290386 -77.610531 White Oak Swamp R3 RIVERINE Linear 2294 FOOT DELINEATE 35.99455507 -77.61517552 Swift Creek R3 RIVERINE Linear 3298 FOOT DELINEATE 35.98937583 -77.61340567 UT- K -2 U T-B U T -B UT- B U T -C UT -I U T - E UT - K - 1 U T - J UT - H UT -F UT - GW H I T E O A K S WAMP W H I T E OA K S W A M P UT-A U T- A UT - A U T-D UT-D UT-D S WIFTCR E E K SWIFTCREEK SWIFT CREEK UT-A UT - A U T - A U T -A UT - A Dit ch2 0 D i t c h 1 1 Ditc h 1 2 Ditch 3 3 Ditch30 Ditch2 9 Di t c h 1 3 Ditc h 9 D i t c h 4 Ditch 3 1 Ditch24 Ditch 2 3 Ditc h 7 Ditch 3 2 D i t c h 1 7 Ditch 2 D i t c h 1 6 Ditch 3 Dit c h 19 Ditch27 Dit c h 2 5 Ditch 1 Ditc h 22 Ditch 21 Ditch 26 Ditch14 Ditc h 8 Dit c h 10 Ditch 5 Ditch 1 8 Ditch 6 D i t c h 2 8 Ditch 15 Wetland No. 1 Wetland No. 2 Wetland No. 6 Wetland No. 6 Wetland No. 6 Wetland No. 6 Wetland No. 7 Wetland No. 7 Wetland No. 8 I 0 0.50.25 Miles Legend APPROXIMATE PROJECT BOUNDARY EVALUATED WETLANDS (5-11-2017) JURISDICTIONAL WETLANDS (~183.6 Acres) EVALUATED STREAMS (5-11-2017) JURISDICTIONAL STREAMS (~22,054 Feet) EXISTING DITCHES (~25,056 Feet) Imagery Source: USDA NAIP 2015 I 0 105 Miles P: \ E n v i r o n m e n t a l \ 2 0 1 2 + P r o j e c t s \ 0 1 2 7 - P a l u s t r i n e G r o u p P R M - C C X \ G I S \ J u r i s d i c t i o n a l D e t e r m i n a t i o n M a p s - R a l e i g h \ 6 _ J u r i s d i c t i o n a l W a t e r s M ap . m x d Waters of the U.S. Disclaimer: This drawing represents the jurisdictional waters boundary identified in the field by Amec Foster Wheeler Environment & Infrastructure. All jurisdictional boundaries are subject to verification by the U.S. Army Corps of Engineers (USACE). This map should be used for preliminary planning purposes only. Swift Creek - Permittee Responsible Mitigation Plan Edgecombe County, North Carolina Job No. 6250170127 Drawn By: WAR Reviewed By: RH Date: 05/15/2017 The map shown here has been created with all due and reasonable care and is strictly for use withAmec Foster Wheeler project number 6250170127. Amec Foster Wheeler assumes no liability, direct or indirect, whatsoever for any such third party or unintended use. Figure 6. Jurisdictional Waters Map AREA FEATURE TYPE WetlandNo.1 Jurisdictional Wetland 12.65 Acres WetlandNo.2 Jurisdictional Wetland 2.43 Acres WetlandNo.3 Jurisdictional Wetland 0.01 Acres WetlandNo.4 Jurisdictional Wetland 0.06 Acres WetlandNo.5 Jurisdictional Wetland 0.34 Acres WetlandNo.6 Jurisdictional Wetland 164.81 Acres WetlandNo.7 Jurisdictional Wetland 3.17 Acres WetlandNo.8 Jurisdictional Wetland 0.17 Acres UT- A Intermittent/Perennial RPW 6,761 Feet UT- B Perennial RPW 1,662 Feet UT- C Intermittent/Perennial RPW 473 Feet UT- D Intermittent/Perennial RPW 2,619 Feet UT- E Intermittent/Perennial RPW 582 Feet UT- F Perennial RPW 787 Feet UT- G Perennial RPW 1,075 Feet UT- H Perennial RPW 642 Feet UT- I Intermittent/Perennial RPW 477 Feet UT- J Perennial RPW 635 Feet UT- K-1 Perennial RPW 598 Feet UT- K-2 Perennial RPW 151 Feet White Oak Swamp Perennial RPW 2,294 Feet SwiftCreek Perennial RPW 3,298 Feet Ditch 1 830 Feet Ditch 2 673 Feet Ditch 3 700 Feet Ditch 4 344 Feet Ditch 5 1,186 Feet Ditch 6 1,453 Feet Ditch 7 512 Feet Ditch 8 1,496 Feet Ditch 9 300 Feet Ditch 10 1,137 Feet Ditch 11 94 Feet Ditch 12 158 Feet Ditch 13 261 Feet Ditch 14 952 Feet Ditch 15 2,379 Feet Ditch 16 694 Feet Ditch 17 598 Feet Ditch 18 1,437 Feet Ditch 19 742 Feet Ditch 20 86 Feet Ditch 21 870 Feet Ditch 22 867 Feet Ditch 23 511 Feet Ditch 24 481 Feet Ditch 25 789 Feet Ditch 26 934 Feet Ditch 27 768 Feet Ditch 28 2,161 Feet Ditch 29 247 Feet Ditch 30 212 Feet Ditch 31 454 Feet Ditch 32 570 Feet Ditch 33 160 Feet Uplands ~409.4 Acres Total Easement Acreage ~593 Acres ACREAGE/LINEAR FEET ~183.6 ac./~22,054 LFTotal Jurisdictional Wetlands Total Ditches 25,056 LF Wetland No. 3 Wetland No. 4 Wetland No. 5 Appendix G - Agency Correspondence Swiftie Mitigation Project Initial Evaluation Letter Meeting Minutes- NCIRT Draft Prospectus Site Meeting Floodplain Coordination with Edgecombe County Planning Director DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARLINGTON AVENUE WILMINGTON, NORTH CAROLINA 28403-1343 March 28, 2023 Regulatory Division Action ID No. SAW-2019-00631 Re: NCIRT Initial Review of the Swiftie Mitigation Bank (Site) Prospectus Ms. Catherine Roland Water & Land Solutions 7721 Six Forks Rd. Suite 130 Raleigh, NC 27699 Dear Ms. Roland: This letter is regarding your prospectus document dated January 2023, for the proposed Swiftie Mitigation Bank (Site). The proposal consists of the establishment of a new 343-acre mitigation bank known as the Swiftie Mitigation Bank (Site), located in Leggett, Edgecombe County, North Carolina (35.998400° N, -77.606200° W). The proposed Swiftie Mitigation Site would include stream restoration, enhancement, and preservation, in addition to wetland restoration activities within the Tar River watershed (8-digit hydrologic unit code (HUC): 03020101). The Corps determined the Prospectus was complete and issued a public notice (P/N # SAW-2019-00631) on February 06, 2023. The purpose of this notice was to solicit the views of interested State and Federal agencies and other parties either interested in or affected by the proposed work. Incorporated in this email and attached are comments received in response to the public notice from the North Carolina Department of Natural and Cultural Resources State Historic Preservation Office and the US Fish and Wildlife Service. IRT COMMENTS TO BE ADDRESSED IN THE DRAFT MITIGATION PLAN 1.USACE Comments, Kim Isenhour: a.) IRT would like to see a flow gauge on S200. B.) IRT requested a lateral drainage effect analysis on the ditch to remain open adjacent to W02/03. c.) Discussed adjusting the northwest corner of the easement boundary on S100 to abut the PRM easement boundary. Also discussed potentially adjusting the easement boundary near the preservation areas (S700/S500) so open pockets of forest wouldn't be left unprotected. REPLY TO ATTENTION OF: The Corps has considered the comments received from members of the Interagency Review Team (IRT) and information that was discussed during an IRT site review on January 17, 2023. We have determined that the proposed mitigation bank appears to have the potential to restore aquatic resources within the 8-digit HUC 03020101 of the Tar River Basin; however, we request that you address the enclosed agency concerns in the draft mitigation plan. Please provide a response to the attached comments with your draft mitigation plan submittal. We appreciate your interest in restoring and protecting waters of the United States. If you have questions regarding this letter, please contact me at (919) 946-5107 or by email at Kimberly.D.Browning@usace.army.mil. Sincerely, Kim Isenhour Mitigation Project Manager Regulatory Division - Wilmington District Electronic Copies Furnished: NCIRT Distribution List For North Carolina Department of Natural and Cultural Resources State Historic Preservation Office Ramona M. Bartos, Administrator Governor Roy Cooper Office of Archives and History Secretary D. Reid Wilson Deputy Secretary, Darin J. Waters, Ph.D. Location: 109 East Jones Street, Raleigh NC 27601 Mailing Address: 4617 Mail Service Center, Raleigh NC 27699-4617 Telephone/Fax: (919) 814-6570/814-6898 February 23, 2023 Kim Isenhour Kimberly.D.Browning@usace.army.mil The Corps of Engineers-Wilmington District Raleigh Regulatory Field Office 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 Re: Establish PG Tar 01 Umbrella Mitigation Bank, Swift (Swiftie) Creek Mitigation Site, Edgecombe County, ER 19-2626 Dear Ms. Isenhour: Thank you for your letter of February 06, 2023, regarding the above-referenced undertaking. We have reviewed the submittal and offer the following comments. We have conducted a review of the project and are aware of no historic resources which would be affected by the project. Therefore, we have no comment on the project as proposed. The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the Advisory Council on Historic Preservation’s Regulations for Compliance with Section 106 codified at 36 CFR Part 800. Thank you for your cooperation and consideration. If you have questions concerning the above comment, contact Renee Gledhill-Earley, environmental review coordinator, at 919-814-6579 or environmental.review@ncdcr.gov. In all future communication concerning this project, please cite the above referenced tracking number. Sincerely, Ramona Bartos, Deputy State Historic Preservation Officer January 30, 2022 Kim Isenhour 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Re: Water and Land Solutions LLC; Swiftie Mitigation Site/ SAW-2019-00630/ Edgecombe County Dear Ms. Isenhour: The U.S. Fish and Wildlife Service (Service) has reviewed the draft mitigation prospectus for the Swiftie Mitigation Site. Water and Land Solutions LLC (WLS) proposes a wetland and stream mitigation project along Swift Creek, in the Tar River basin near L eggett, Edgecombe County, North Carolina. The project includes potential stream restoration, enhancement, and preservation of approximately 9,265 linear feet of stream reaches and the restoration, enhancement, and preservation of 140.47 acres of riparian and non-riparian wetlands. We regret that Service staff were unable to participate in the field meeting at the site on January 17, 2023. Federally Listed Species The site is adjacent to occupied habitat for the Neuse River waterdog (NRWD) (threatened), and the Carolina madtom (endangered), as well as critical habitat for both species. In addition, mist - net surveys in July of 2018 captured a tricolored bat (Perimyotis subflavus) (TCB) close to the project boundary. Tricolored Bat The TCB is proposed for listing as endangered and a decision to list may be made as soon as September 2023. If work is not completed (particularly tree removal and any culvert modification/removal) before the listing decision, the U.S. Army Corps of Engineers (C orps) will need to consult with the Service on impacts from the project construction to TCB. The prospectus and mitigation plan should document the occurrence of TCB on the property and acknowledge that reinitiation of consultation will be required if the TCB is listed prior to completion of the project. The Service hopes to have programmatic solutions in place prior to a listing decision. In the piedmont, TCB roost in trees during warmer months and roost or hibernate in culverts and potentially bridges year-round. It is not well-known whether they may come out of the culvert roost on warm winter nights, or whether they may roost in trees for any part of the winter. Tree removal and culvert removal or modification may affect TCB if individuals of the species are present. Until we have more information, we will probably treat the TCB similar to the northern long-eared bat in the piedmont and rangewide. This means (if and when it is listed) that there will be time of year restrictions on tree-cutting and also probably an acreage threshold in order to make a determination of "may affect, not likely to adversely affect." I n general, the Service will 2 expect tree cutting to avoid the late spring/summer pupping season. The pup season may begin earlier in Edgecombe County than other parts of the range. For areas in the coastal plain (not far east of this project) we will also likely have time of year restrictions to avoid the coldest months when bats may be hibernating in trees and culverts (which makes it hard er for them to wake up and flee a felled tree or culvert that is being removed/modified). However, Edgecombe County is not currently considered part of this year-round active area. Neuse River Waterdog and Carolina Madtom The Service is pleased to see the proposed restoration, enhancement, and preservation of wetlands and buffers within and adjacent to the Swift Creek floodplain. No direct impacts are anticipated to NRWD and Carolina madtom or the critical habitat for those species. The project will likely benefit the aquatic species. In Section 4.2.6 of the prospectus, the Service recommends adding a statement that the NRWD and Carolina madtom are present in Swift Creek adjacent to the project, and there is the potential for both species to be found in the lower tributaries of the site. The designation of critical habitat for NRWD and Carolina madtom in this stretch of Swift Creek should also be discussed in Section 4.2.6. The Service recommends deletion of the following sentence: “No potential protected species occurrences were observed during initial site investigations.” Because NRWD and Carolina madtom are relatively small aquatic species that live on or near the bottom of streams, the Service would not expect anyone to observe them during basic site investigations without entering the water and conducting rigorous surveys. In addition, the last sentence of the section should acknowledge that during the permitting process for the PRM project, the NRWD and Carolina madtom were not listed, and critical habitat was not yet designated . The Service recommends that the mitigation plan commit to implement stringent erosion control measures during construction, including: • A double row of silt fence, to ensure that erosion is captured effectively. • Silt fence and other erosion control devices should not include outlets that discharge closer than 50 feet to the top of bank of any stream. • Silt fence outlets for each row of silt fence should be offset to provide additional retention of water and sediment in the outer row. • Conduct twice-weekly inspections of all erosion and sedimentation controls. In addition to twice-weekly inspections, inspect also within 24-hours of rain events (including a 1-inch total rain event or an event where rainfall rates are 0.3 inch/hour or greater). I nspect all of the erosion and sedimentation controls to ensure the integrity of the devices. • Maintain all controls as necessary to ensure proper installation and function . Repair and replace sections of controls as needed to minimize the potential for failure. • Revegetate with native species as soon as possible. • Any spills of motor oil, hydraulic fluid, coolant, or similar fluids into the riparian wetlands or floodplain must be reported to the Corps and Service immediately. • Educate the construction crew about the presence of sensitive species by providing information or installing signs on the silt fence . Attached is an example of such a sign. 3 The Service appreciates the opportunity to review and provide comments on the mitigation site prospectus. Should you have any questions regarding the project, please contact Kathy Matthews at kathryn_matthews@fw s.gov. Sincerely, Pete Benjamin, Field Supervisor waterlandsolutions.com | 7721 Six Forks Rd, Ste 130, Raleigh, NC 27615 | 919-614-5111 Meeting Minutes Swiftie Mitigation Bank Subject: NCIRT Draft Prospectus Site Meeting Date Prepared: January 18, 2023 Meeting Date and Time: January 17, 2023 @ 10:00 am Meeting Location: On Site (Edgecombe County, NC) 35.9984° N, -77.6062° W Attendees: USACE: Kim Isenhour, Casey Haywood (NCIRT) WRC: Travis Wilson, Maria Dunn (NCIRT) WLS: Kayne VanStell, Catherine Roland George Lankford, LSS Recorded By: Catherine Roland These meeting minutes document notes and discussion points from the North Carolina Interagency Review Team (NCIRT) Draft Prospectus Site Meeting for the Swiftie Mitigation Bank (project, site). The project site is located within Tar River Basin (CU 03020101) in Edgecombe County, near Leggett, North Carolina. The meeting began at 10:00am with a general summary of the overall project concepts and site background. After the site overview, attendees toured the project site to review existing conditions, proposed mitigation types, design concepts and approaches. In general, the project site review notes are presented below in the order they were visited. S100 • The meeting started with S100, the group walked from the start of the reach into the wood line where the project connects into a ditch and then the PRM Swift Creek Site. The group agreed to the headwater restoration approach at a 1:1 ratio. There was a discussion to pay particular attention to the removal of privet in this area during construction and emphasized importance of a stable connection with the PRM reach. S500 • The group then drove down to S500 and stopped at the first existing culvert. • There was discussion about the removal of the two culvert crossings and limited ditch fill along S500. Kim stated that in the mitigation plan WLS should note how many feet of in channel work is proposed and then propose a credit ratio for those areas we are working to remove the culverts. In the mitigation plan WLS should call out the stations in the text and write an explanation waterlandsolutions.com | 7721 Six Forks Rd, Ste 130, Raleigh, NC 27615 | 919-614-5111 justifying the proposed credit ratio. • The IRT agreed with the preservation approach for S500 and S600 and connection with the PRM reach. Travis and Maria stated that the 7.5:1 ratio was appropriate for the area considering the quality of the preservation area. • Kim stated that re-delineating the bottom of the project in the preservation area was not necessary. Kim was going to look into the PJD files to see if the application was ever officially signed. • IRT requested that WLS show existing roads and existing culvert locations on the maps. • WLS to remove small wetland area from mitigation credit along road and change to ‘open water’ that used to be a borrow pit. S300 • The group then drove across the field to lower S300 and began walking the stream preservation area. The group agreed that even though this section of the channel was incised, there was excellent vegetation establishment on the banks as well as adequate bedform diversity. The group agreed with the preservation approach and proposed credit ratio. • The group then walked upstream to the enhancement area. There was a general agreement that enhancement was the appropriate approach. Kayne noted a combination of localized bank stabilization, installing log/woody structures and privet removal would be implemented in this reach section. Kim would like to know the percentage and type of work being done on the banks in this reach. Knowing the percentage of work completed will determine the appropriate credit ratio. This will be described in more detail within the mitigation plan stage of the project. • The old house adjacent to reach will be removed from the easement. • Discussion at the top of S300 about how the culvert will be removed and the ditch will be left open to convey the water flowing out of W03 into S300. W02/W03 • The group then walked along the ditch at the bottom edge of W02 and W03. • Kim suggested a bump out of the easement of 50ft along the edge in order to protect the wetland areas and limit crop loss/groundwater influence, if possible. Kayne noted that WLS owned the property and can adjust the easement boundary as necessary. • Kim mentioned that WLS might need to call some of the diches something else (i.e., drainage swale) if they are considered jurisdictional ditches. WLS would still get 1:1 ratio for wetland re- establishment but, would have to show them differently on a figure. • In the mitigation plan WLS to show which ditches will be filled, which will be modified/partially filled, and which will be left open. • Kim requested pre-restoration wetland gauges in this area. • Group discussion of the existing ditch network and how it flows out at a point into S300. The group agreed that this was an appropriate concept approach for the site. waterlandsolutions.com | 7721 Six Forks Rd, Ste 130, Raleigh, NC 27615 | 919-614-5111 S200 • The group walked along the drainage swale towards S200. The IRT agreed to the enhancement approach for the bottom of S200 and also agreed to the headwater restoration approach and connection with lower S200 at the top of the reach. • Kim noted that there should be a discussion in the mitigation plan about the DOT culvert at the top of the project, is it appropriately sized, vertical profile impacts, etc.? WLS to include a photo and brief discussion. • WLS noted that the powerline from highway ROW to house would be relocated outside of the easement and spoil/floodplain areas would be regraded. IRT requested a call out on a map of the power line. Overall Notes • Kim will look into existing PJD application from 2019 and coordinate with Catherine on the next steps concerning the PJD. • Travis suggested ongoing coordination with the TRLC to see how the plans for the property outside the easement have changed since the original site plan, including the adjacent PRM site. Include any land use changes and property management objectives in the mitigation plan. • Catherine/WLS will coordinate nutrient/riparian buffer plan with Katie Merritt/DWR. • Overall, the IRT agreed with the revised mitigation approaches proposed by WLS. WLS will submit any updates and suggestions with the final prospectus. IRT Meeting Minute Comments • Please note that credit ratios are not agreed on until the draft MP stage. • IRT would like to see a flow gauge on S200. • IRT requested a lateral drainage effect analysis on the ditch to remain open adjacent to W02/03. • Discussed adjusting the northwest corner of the easement boundary on S100 to abut the PRM easement boundary. Also discussed potentially adjusting the easement boundary near the preservation areas (S700/S500) so open pockets of forest wouldn't be left unprotected. The above minutes represent Water & Land Solutions’ interpretation and understanding of the meeting discussion and actions. If recipients of these minutes should find any information contained in these minutes to be in error, incomplete, please notify the author with appropriate corrections and/or additions within five (5) business days to allow adequate time for correction and redistribution. From:Katina Braswell To:Christopher Tomsic Cc:Catherine Roland; Kayne Van Stell; Jordan Hessler Subject:Re: Stream Mitigation Project Date:Tuesday, August 22, 2023 12:00:14 PM Attachments:image001.png Outlook-crqsp01k.png Chris, Thanks for sharing the attached information. I agree it's important to bring awareness to the jurisdiction where project is located. No questions or concerns at this time. Take care, Katina Braswell, CFM Edgecombe County Planning Director 201 St Andrew St Suite 205 PO Box 10 Tarboro, NC 27886 (p)252-641-7808 www.edgecombecountync.gov From: Christopher Tomsic <tomsic@waterlandsolutions.com> Sent: Tuesday, August 22, 2023 10:41 AM To: Katina Braswell <katinabraswell@edgecombeco.com> Cc: Catherine Roland <catherine@waterlandsolutions.com>; Kayne Van Stell <kayne@waterlandsolutions.com>; Jordan Hessler <jordan@waterlandsolutions.com> Subject: RE: Stream Mitigation Project Your attachment(s) were cleaned by Check Point Sandblast Threat Extraction. Click here to restore the original(s) or contact your system administrator. You may be required to authenticate, in that case follow these instructions: 1. You will be directed to a page where you would be requested to specify your email address. 2. An email with verification code will be sent to you. 3. Copy the code and return to the attachment recovery page. 4. The email with original attachments will be released to your mailbox. Please exercise discretion when requesting to release suspicious attachments. Katina, Thanks for taking the time to speak with me as well. As mentioned on the phone my company is working on a stream/wetland mitigation project close to Leggett, NC off of NC Hwy 33. The project involves restoring, enhancing, and protecting both streams and wetlands on the subject parcel. Our work is close to the Swift Creek regulatory floodplain. However, none our work (design or construction) will impact the Swift Creek regulatory floodplain. I wanted to contact you to inform you of the work occurring in you jurisdiction. Please review the attached documents and let me know if you have any questions or additional information requests. Take Care, CHRISTOPHER TOMSIC SENIOR PROJECT ENGINEER, PE, CFM tomsic@waterlandsolutions.com + 1 (828) 493 3287 6 Dula Springs Road Weaverville, NC 28787 United States www.waterlandsolutions.com From: Katina Braswell <katinabraswell@edgecombeco.com> Sent: Tuesday, August 22, 2023 10:12 AM To: Christopher Tomsic <tomsic@waterlandsolutions.com> Subject: Stream Mitigation Project Chris, It was a pleasure speaking with you earlier. I look forward to receiving additional information on the above referenced project. Thank you, Katina Braswell, CFM Edgecombe County Planning Director 201 St Andrew St Suite 205 PO Box 10 Tarboro, NC 27886 (p)252-641-7808 www.edgecombecountync.gov This email message, and any attachment(s), as well as any email message(s) that may be sent in response to it, may be considered Public Record per NC General Statute §132, and may be released to third parties without prior notice. This email has been scanned for spam and viruses by Proofpoint Essentials. Click here to report this email as spam. CAUTION: This email originated from outside your organization. Exercise caution when opening attachments or clicking links, especially from unknown senders. This email message, and any attachment(s), as well as any email message(s) that may be sent in response to it, may be considered Public Record per NC General Statute §132, and may be released to third parties without prior notice. This email has been scanned for spam and viruses by Proofpoint Essentials. Click here to report this email as spam. August 22, 2023 Edgecombe County Attn: Katin a Braswell, Planning Director 201 St Andrew St, Suite 205 PO Box 10 Tarboro, NC 27886 Dear Ms. Braswell: I am a duly qualified engineer registered to practice engineering in the State of North Carolina (license # 036916). My company Water and Land Solutions will be constructing a Stream and Wetland Mitigation project adjacent to Swift Creek in the Town of Leggett, NC. This project involves restoring, enhancing, and preserving both streams and wetlands within a permanent 326-acre conservation easement (Figure 1). The conservation easement will incorporate some of the Swift Creek Floodplain/Floodway. Although this project will increase local groundwater tables adjacent to Swift Creek thereby restoring/enhancing wetland hydrology and will allow previously incised streams access to newly constructed floodplains, there will be no impacts or adverse effects to the Swift Creek floodplain/floodway on the affected parcel. Should you have any questions about this determination please contact me via phone at 828-493-3287 or by email at tomsic@waterlandsolutions.com. Sincerely, Christopher A. Tomsic, PE, CFM Senior Project Engineer CC: Catherine Roland Kayne Van Stell Jordan Hessler White OakSwamp Rd 33 W01 W02 W03 W04W06 W05 S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Figure1Proposed Mitigation Features Map Date: 8/16/2023 Approximate Project Boundary Parcel Boundary Stream Mitigation Restoration Enhancement Preservation No Credit Existing Ditches Wetland Mitigation Non-riparian Wetland Re-establishment Riparian Wetland Enhancement Non-riparian Wetland Enhancement Preservation FEMA Floodzone 100-yr (Zone AE) Floodway (Zone AE) 500-yr (Zone X) ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Appendix H - Site Photographes Swiftie Mitigation Project S100 looking downstream showing channelization and adjacent agricultural fields with lack of native buffer vegetation S200 looking upstream towards restoration section showing ditched conditions with poor bed and bank definition S200 looking downstream towards enhancement section showing ditched conditions with poor bed and bank definition S300 looking upstream at enhancement section showing incised channel conditions S300 looking upstream within preservation area S400 looking upstream showing channelization with wooded buffer S500 road crossing and culvert S500 looking upstream showing stable, meandering channel S600 looking downstream demonstrating native woody vegetation and stable stream channel S700 looking downstream showing vegetated buffer Ditch 2 looking downstream to confluence with S100.Ditch 12 looking downstream to transition to S300. Appendix I – DWR Buffer Mitigation and Nutrient Offset Plan Swiftie Mitigation Project Swiftie Buffer Mitigation & Nutrient Offset Plan Riparian Buffer & Nutrient Offset Mitigation Bank DWR #20230026 v1 Edgecombe, North Carolina Tar River Basin (HUC 03020101) DRAFT September 2023 Prepared by: Swiftie Buffer Mitigation & Nutrient Offset Plan Page 2 Table of Contents 1 Introduction ............................................................................................................................................... 4 1.1 Project Location ............................................................................................................................ 4 1.2 Project Description ........................................................................................................................ 4 2 Project Area - Existing Conditions .............................................................................................................. 5 2.1 Reach Descriptions ........................................................................................................................ 5 2.2 Existing Wetlands .......................................................................................................................... 6 2.3 Soils ............................................................................................................................................... 6 2.4 Existing Vegetative Communities ................................................................................................. 8 2.5 Threatened and Endangered Species ........................................................................................... 9 2.6 Cultural Resources ...................................................................................................................... 10 2.7 Constraints .................................................................................................................................. 10 2.8 FEMA Floodplain / Floodway Mapping ....................................................................................... 10 3 Proposed Tar-Pamlico Buffer & Nutrient Offset Restoration Plan .......................................................... 10 3.1 Parcel Preparation ...................................................................................................................... 11 3.3 Riparian Restoration ................................................................................................................... 11 3.4 Riparian Preservation .................................................................................................................. 12 3.6 Planting ....................................................................................................................................... 12 4 Monitoring and Maintenance Plan .......................................................................................................... 13 4.1 Monitoring Protocol .................................................................................................................... 13 4.2 Performance Standards for Vegetation Adjacent to Single-Thread Streams ............................. 14 4.3 Performance Standards for Vegetation Adjacent to Coastal Headwater Streams ..................... 14 4.4 Performance Standard for Coastal Headwater Streams ............................................................. 14 4.5 Photo Reference Stations ........................................................................................................... 15 4.6 Visual Assessment ....................................................................................................................... 15 4.7 Reporting Performance Criteria .................................................................................................. 16 4.8 Adaptive Management Plan........................................................................................................ 16 4.9 Conservation Easement and Long-Term Management Plan ...................................................... 16 4.10 Financial Assurances ................................................................................................................... 17 5 Credit Release Schedule ........................................................................................................................... 18 6 Mitigation Potential ................................................................................................................................. 19 7 Citations ................................................................................................................................................... 22 Swiftie Buffer Mitigation & Nutrient Offset Plan Page 3 Figures Figure 1 ............................................................................................................................... Service Area Map Figure 2 ......................................................................................................................... Project Location Map Figure 3 .................................................................................................................................. NRCS Soils Map Figure 4 .................................................................................................................................. Floodplain Map Figure 5 ............................................................................................................................. Existing Conditions Figure 6 ................................................................................ Proposed Buffer and Nutrient Restoration Plan Figure 7 ............................................................................. Stream and Wetland Mitigation Conceptual Plan Figure 8 ................................................................................................................ Proposed Monitoring Map Attachments Attachment A ........................................................................................... DWR Determinations and Viability Attachment B .................................................................................................................................. Photo Log Swiftie Buffer Mitigation & Nutrient Offset Plan Page 4 1 Introduction The Swiftie Nutrient Offset and Buffer Mitigation Bank Parcel (“Parcel”) is proposed under the terms and conditions of the Swiftie Nutrient Offset and Buffer Mitigation Banking Instrument (MBI), made and entered into by Water and Land Solutions, LLC (WLS), acting as Bank Sponsor (“Sponsor”), and the North Carolina Department of Environmental Quality (NCDEQ) Division of Water Resources (DWR). The Parcel shall be planned and designed according to the MBI, 15A NCAC 02B .0240, and the Consolidated Buffer Mitigation Rule 15A NCAC 02B .0295, which became effective on November 1, 2015. The Buffer Mitigation & Nutrient Offset Plan (“Plan”) will be designed in concurrence with the Swiftie Mitigation Bank (SAW- 2019-00631). The mitigation plan for the Swiftie Mitigation Bank has been submitted to the Interagency Review Team and a prospectus has been approved. This Parcel is proposed to provide riparian buffer and nutrient offset mitigation credits for unavoidable impacts due to development in the Tar-Pamlico River Basin, United States Geologic Survey (USGS) 8-digit Hydrologic Unit Code (HUC) 03020101. The Parcel service area is depicted in Figure 1. 1.1 Project Location The Parcel (35.9984° N, -77.6062° W) is located in Edgecombe County, North Carolina (Figure 2) within the Upper Tar River Basin (8-digit HUC 03020101). The Parcel will have an estimated conservation easement of 327 acres. The Parcel is located directly adjacent to and on the same property as the Swift Creek Permittee Responsible Mitigation (PRM) project (SAW-2016-02338). The Swift Creek PRM site is being used to mitigate impacts associated with the CSX Transportation, Inc’s Carolina Connector Intermodal Terminal project, located along the western edge of Edgecombe County and north of the City of Rocky Mount. To access the site from Raleigh, NC, follow I-40 East, take exit 14 for US-64 E/US-264 E toward Rocky Mt/Wilson, then continue onto I-87. Continue onto US-64 E, take exit 470 for NC-97/Atlantic Ave, turn right onto NC-97 E/Atlantic Ave, then turn right onto NC-97 E. Turn left onto New Hope Church Rd, turn right onto Battleboro-Leggett Rd, turn left onto Speights Chapel Rd, turn right onto White Oak Swamp Rd, and finally turn right onto NC-33 E. The site will be on the right in four miles between the existing CSX mainline and Old Battleboro Road. 1.2 Project Description The Parcel encompasses land along unnamed tributaries to the Tar-Pamlico River in Edgecombe County, NC and is in row crop agricultural and silvicultural land use. Historically, the project stream reaches have been extensively ditched to promote rapid drainage from the adjacent farm fields. This disturbance has resulted in stream channel incision and a permanent disconnection from the streams’ relic floodplain. Most of the project stream reaches have been completely or partially cleared with some areas of forested or successional riparian buffer. Currently, the project reaches act as significant sources of nutrient contamination to the project watershed and Swift Creek. The project will restore Tar-Pamlico buffers and other riparian areas in order to reduce non-point source discharge of contaminants into streams and agricultural ditch channels within the Tar-Pamlico River basin. The project area is comprised of two easement sections and is approximately 327 acres, which includes Swiftie Buffer Mitigation & Nutrient Offset Plan Page 5 the stream and wetland mitigation areas. The Parcel streams drain directly to White Oak Swamp and Swift Creek which are listed as ‘WS-IV’ and ‘NSW’ (Water Supply, Nutrient Sensitive Waters) waters according to the North Carolina Division of Water Resources (NCDWR) (2018). Out of the 327 acres, 26.7 acres will be restored for Tar-Pamlico buffer credit and 24.1 acres will be restored for nutrient offset restoration credit. In general, Tar-Pamlico buffer widths will extend a minimum width of 50 feet from the top of stream banks, while nutrient offset restoration area widths will extend out to a maximum of 200 feet from the top of the channel or ditch bank. The buffer restoration credit adjacent to coastal headwater stream mitigation is classified as alternative mitigation under Rule 15A NCAC 02B .0295 (o)(2) and is discussed in Section 3.2. The DWR performed an onsite Site Viability for Buffer Mitigation and Nutrient Offset on March 8, 2023 (letter dated June 26, 2023) for the Parcel (Attachment A). The buffer mitigation and nutrient offset viability will be based on the proposed site conditions. 2 Project Area - Existing Conditions 2.1 Reach Descriptions S100: S100 is a small headwater tributary that has been historically manipulated and channelized; however, appears to generally be within the natural valley/low point along most of its length. The valley slope is approximately 0.8 percent, and the drainage area is 41 acres. The majority of the drainage area for S100 is in active agricultural management. The riparian buffer along upper S100 is actively maintained within agricultural fields and woody vegetation in the lower end. The lower section in the wooded area has downcut to the natural floodplain elevation but remains mostly stable. S100 drains into the PRM project easement. S200: S200 is a small headwater tributary that begins at an existing culvert crossing under NC Hwy 33 and flows southeast as an intermittent headwater tributary. S200 has a valley slope of 0.7 percent and drainage area of 90 acres. Based on field observations, the headwater channel and floodplain have been ditched in an attempt to drain surface hydrology for agricultural use. The historic channel manipulation in the upper section has led to poor bedform diversity. The lower reach is mostly stable with limited bank erosion observed in a few localized areas. Successional native woody vegetation was observed along most of this reach; however, Chinese privet was also documented along the reach. S300: S300 is a headwater tributary that originates from a heavily ditched area containing hydric soils. The stream has been channelized and straightened along its upper length. The upper portion of S300 is highly incised and lacks natural bedform features. The valley slope is approximately 0.5 percent, and the natural drainage area is 44 acres which excludes the ditched non-riparian wetland area. Although the lower reach is moderately incised, it is mostly stable and experiencing minimal lateral instability and bank erosion. The riparian buffer along the entire length of S300 is partially to mostly wooded, and the understory contains limited invasive species vegetation, mainly Chinese privet. S400: S400 begins downstream of an existing culvert under a farm access road. S400 has been channelized and straightened along much of its length, as evidenced by the spoil piles and levees along the floodplain. S400 lacks natural bedform features until the stream begins downcutting towards the Swift Creek floodplain and meander cutoff. This reach exhibits localized streambank erosion and associated soil loss. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 6 The valley slope is approximately 0.9 percent, and the drainage area is 468 acres. The majority of the drainage area for S400 is within active agricultural fields with an adjacent forested area. The riparian buffer along the entire length is partially wooded. This reach is not proposed for stream mitigation credit. S500: S500 begins immediately downstream of the PRM project boundary and connects with a restored stream system that flows towards the Swift Creek floodplain. S500 has a valley slope of 0.3 percent and drainage area of 279 acres. Based on field observations, the channel gently meanders across relic meander cutoffs and backwater sloughs, although portions of the channel and floodplain areas appear to have been historically ditched. The reach is stable and native woody vegetation was observed along a majority of this area. S600: S600 continues downstream of S500 and eventually flows off the project boundary towards its confluence with Swift Creek. S600 has a valley slope of 0.3 percent and drainage area of 348 acres. Similar to S500, the channel gently meanders across relic meander cutoffs and backwater sloughs, although some channel and floodplain areas appear to have been historically ditched. The reach is stable and native woody vegetation was observed along most of this section. S700: S700 is a small headwater tributary that flows directly into White Oak Swamp. The valley slope is approximately 0.9 percent, and the drainage area is 33 acres. The reach is stable and exhibits minimal bank erosion. The channel appears to be within its natural valley and the existing buffer is well vegetated. This headwater stream and wetland system is considered to be high functioning and the existing riparian buffer helps to filter pollutants (nutrients) that would otherwise drain to White Oak Swamp. 2.2 Existing Wetlands Based on preliminary site investigations, including hand-augered soil borings, it is likely that jurisdictional wetlands were once present throughout the headwater stream valleys. The extent of the existing wetland areas was determined by the valley crenulations and overall bottom widths. When on-site streams were straightened and/or dredged, groundwater elevations were altered such that many of the historic wetlands along the stream fringe were drained and lost. These areas have been utilized for agriculture (row crop) production over the past fifty years and have lost most of their historic wetland function. A preliminary jurisdictional determination package is provided in Appendix F of the Stream and Wetland Mitigation Plan. 2.3 Soils The Parcel is located in the Inner Coastal Plain Physiographic Region. As shown on the NRCS Soils Map (Figure 3), there are fifteen main soil types on the Parcel: Altavista fine sandy loam (AaA), Ballahack fine sandy loam (Ba, hydric), Chewacla silt loam (Cc), Conetoe loamy sand (CeB), Dogue fine sandy loam (DgA), Goldsboro fine sandy loam (GoA), Norfolk loamy sand (NoB), Rains fine sandy loam (RaA, hydric), Roanoke loam (Ro, hydric), State loamy sand (StB), Tarboro loamy sand (TaB), Wagram loamy sand (WaB), Wahee fine sandy loam (We), Wehadkee silt loam (Wh, hydric), and Wickham sandy loam (WkB). The Parcel soils are commonly defined by a sandy loam surface layer, with predominantly sandy and loamy subsoil alluvium located along floodplains and stream terraces. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 7 Table 1. Project Soil Types Soil Name Hydric % of easement Description Altavista fine sandy loam (AaA) No 9.2 Moderately well drained soil on stream terraces. Slopes from 0 to 3 percent. Hydrologic Soil Group (HSG): C and runoff class is low. Ballahack fine sandy loam (Ba) Yes 2.3 Very poorly drained soil in floodplains and flats on stream terraces. Slopes from 0 to 2 percent. HSG: B/D and runoff class is very high. Chewacla silt loam (Cc) No 9.7 Somewhat poorly drained soil in floodplains. Slopes from 0 to 2 percent HSG: B/D and runoff class is low. Can have frequent flooding. Conetoe loamy sand (CeB) No 4.8 Well drained soil on ridges of stream terraces. Slopes from 0 to 4 percent HSG: A and runoff class is very low. Dogue fine sandy loam (DgA) No 7.1 Moderately well drained soil on flats of stream and marine terraces. Slopes from 0 to 3 percent. HSG: C and runoff class is low. Goldsboro fine sandy loam (GoA) No 0.3 Moderately well drained soil on broad interstream divides & flats of marine terraces. Slopes from 0 to 2 percent. HSG: B and runoff class is low. Norfolk loamy sand (NoB) No 0.9 Well drained soil on broad interstream divides & flats of marine terraces. Slopes from 2 to 6 percent. HSG: A and runoff class is medium. Rains fine sandy loam, Southern Coastal Plain (RaA) Yes 0.1 Poorly drained soil on broad interstream divides, Carolina bays, & flats of marine terraces. Slopes from 0 to 2 percent. HSG: B/D and runoff class is low. Roanoke loam (Ro) Yes 33.0 Poorly drained soil on backswamps and depressions of stream terraces. Slopes from 0 to 2 percent. HSG: C/D and runoff class is low. Frequent ponding for brief periods is common. State loamy sand (StB) No 3.9 Well drained soil on stream terraces. Slopes from 0 to 4 percent. HSG: B and runoff class is low. Tarboro loamy sand (TaB) No 19.6 Somewhat excessively drained soil on ridges of stream terraces. Slopes from 0 to 6 percent. HSG: A and runoff class is very low. Wagram loamy sand (WaB) No 1.6 Well drained soil on ridges & broad interstream divides of marine terraces. Slopes from 0 to 6 percent. HSG: A and runoff class is low. Wahee fine sandy loam (We) No 1.8 Somewhat poorly drained soil on flats of marine & stream terraces. Slopes from 0 to 2 percent. HSG: C/D and runoff class is very high. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 8 Wehadkee silt loam (Wh) Yes 3.0 Poorly drained soil in depressions on floodplains. Slopes from 0 to 2 percent. HSG: B/D and runoff class is very high. Frequently flooded. Wickham sandy loam (WkB) No 0.9 Well drained soil on stream terraces. Slopes from 0 to 4 percent. HSG: B and runoff class is low. 2.4 Existing Vegetative Communities The current use within the project area is primarily agriculture fields and forested wetlands. The northeastern portion on the site closest to Highway 33 has a horseshoe-shaped area of forested wetlands that encompasses S200. The natural community in the agricultural fields adjacent to the project area has been effectively removed through tillage, ditching, agriculture, and silviculture. These practices have removed native vegetation and altered the hydrology of the site in order for row-crops to be successful. The southwestern portion of the proposed easement includes large wetlands, located within the floodplain of Swift Creek & White Oak Swamp. Prior to anthropogenic land disturbances, the riparian vegetation community likely consisted of Bottomland Hardwoods in the floodplain of Swift Creek/White Oak Swamp and a Mesic Mixed Hardwood community in the existing agricultural fields and forested area encompassing S200 (Schafale, 2012). Swiftie Buffer Mitigation & Nutrient Offset Plan Page 9 Table 2. Existing Site Vegetation Common Name Scientific Name Canopy Vegetation Red maple Acer rubrum Sweetgum Liquidambar styraciflua River birch Betula nigra Loblolly pine Pinus taeda Tulip poplar Liriodendron tulipifera Slippery elm Ulmus rubra Understory & Woody Shrubs Sweetgum Liquidambar styraciflua Red maple Acer rubrum Southern wax myrtle Morella cerifera American sycamore Platanus occidentalis River birch Betula nigra Loblolly pine Pinus taeda Slippery elm Ulmus rubra White oak Quercus alba Chinese privet Ligustrum sinense Herbaceous & Vines Giant cane Arundinaria gigantea Switchgrass Panicum virgatum Netted chain fern Woodwardia areolata Japanese stiltgrass Microstegium vimineum Roundleaf greenbrier Smilax rotundifolia Cinnamon fern Osmundastrum cinnamomeum False nettle Boehmeria cylindrica Poison ivy Toxicodendron radicans Invasives Chinese privet Ligustrum sinense Invasive Species There is not a significant presence of invasive species vegetation in the buffer and nutrient credit areas. Within the wooded areas there are small clusters of Chinese privet (Ligustrum sinense). After restoration, these areas will be monitored, and any invasive plants found within the project boundary will be treated to prevent expansion and establishment of a substantial invasive community. This will allow for a healthy, native riparian and upland plant community to dominate the area and help prevent future establishment of invasive species vegetation. 2.5 Threatened and Endangered Species Based on a review of the US Fish and Wildlife Service (USFWS) database and IPAC, there are currently five federally listed threatened and endangered species known to occur in Edgecombe County: Neuse River Waterdog (Necturus lewisi), Carolina Madtom (Noturus furiosus), Atlantic Pigtoe (Fusconaia masoni), Tar River Spinymussel (Parvaspina steinstansana), and Yellow Lance (Elliptio lanceolata). The Neuse River Waterdog and the Carolina Madtom are present in Swift Creek adjacent to the Bank, and there is the potential for both species to be found in the lower tributaries of the Bank. The stretch of Swift Creek Swiftie Buffer Mitigation & Nutrient Offset Plan Page 10 adjacent to the Bank is also critical habitat for the Neuse River Waterdog and Carolina Madtom. A net survey in July 2018 captured a Tricolored bat (Perimyotis subflavus) near the Bank bounday. The Tricolored bat is proposed for listing as an endangered species and a decision to list may be made as soon as September 2023. If the Tricolored bat is listed prior to the construction of the Bank, WLS will reinitiate the consultation of USFWS. Project implementation is not anticipated to have a negative impact on these listed species. 2.6 Cultural Resources In accordance with the National Historic Preservation Act, WLS investigated and confirmed that the proposed project area and property do not contain, nor are they adjacent to, any properties listed in the National Register of Historic Places or the North Carolina State Historic Preservation Office (NCSHPO). The nearest site is the Edward Cotton House (HPO Site ID: ED0721) which is approximately 0.8 miles from the project site. On-site investigations and discussions with the previous landowners have not disclosed any potential resources or occurrences of this type on the property. Therefore, the proposed project activities should have no effect on any historic properties eligible for listing in the National Register, and SHPO did not have any comments. 2.7 Constraints The Bank conservation easement is located on the same parcel as the conservation easement of the Swift Creek Mitigation Bank. The Swiftie Bank easement will abut the Swift Creek Bank easement in a few areas. There are no existing utility corridors on the Parcel. There is an overhead powerline easement located outside of the conservation easement at the top of S200. 2.8 FEMA Floodplain / Floodway Mapping A majority of the Parcel is located within a FEMA regulated floodplain (Zone ‘AE’ and the Floodway) (Figure 4). While it is not anticipated that there will be issues associated with FEMA permitting or documentation, WLS will coordinate with the local floodplain administrator as needed and prepare the required documentation to obtain approval for any FEMA regulated impacts. In addition, the project will be designed so that any increase in flooding will be contained within the project boundary and will not impact adjacent landowners; therefore, hydrologic trespass will not be a concern. 3 Proposed Tar-Pamlico Buffer & Nutrient Offset Restoration Plan Riparian restoration adjacent to the streams was approved by the DWR in their letter dated June 26, 2023 (Attachment A). This site is also being proposed as a stream and wetland mitigation bank, and restoration of riparian areas will be accomplished through the goals and methods outlined by the Swiftie Mitigation Banking Instrument (MBI), Swiftie Mitigation Plan (SAW-2019-00631) and the Swiftie Riparian Buffer and Nutrient Offset Mitigation Banking Instrument. All riparian restoration mitigation activities along channels will begin from the tops of the banks and extend a maximum of 200 feet perpendicular to the stream channel where possible pursuant to 15A NCAC 02B .0295 (effective November 1, 2015) and for nutrient offset credits pursuant to 15A NCAC 02B .0240. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 11 All applicable federal, state, and local documentation, permits, and/or authorizations will be acquired as part of implementing the above-mentioned mitigation plan and will be provided to DWR as part of the As-Built Report, including Section 401, Section 404 and Sediment and Erosion Control permits. The restoration of the Parcel will require converting existing agriculture land use practices within riparian areas adjacent to streams and ditches into a dense and diverse vegetated riparian forest. The riparian areas will be replanted with appropriate native tree species. The restoration of the riparian buffer will provide stabilization and improve water quality to tributaries that drain directly to Swift Creek and White Oak Swamp. 3.1 Parcel Preparation The current land uses adjacent to the streams and ditches proposed for riparian restoration are primarily non-forested croplands (Figure 5). The riparian restoration areas will require limited site preparation in addition to the stream and wetland construction. Headwater stream restoration activities will include excavating a broader floodplain at or slightly above the existing bed elevation and will seek to restore groundwater hydrology and connection of surface flows. The design concept will address the current channel’s dimension, pattern, and profile to create stable conditions. Wetland restoration activities will include minimal grading and blending of microtopography. After construction activities, the subsoil will be ripped and disked, and the topsoil will be placed back over the site. Site preparation will also include select herbicide treatments or mechanical clearing to remove undesirable underbrush or invasive species as needed. Diffuse flow will be maintained in the buffers. The Sponsor might utilize mechanical equipment periodically in the first few years after planting to enhance vegetative growth. Mowing will not take place within the first 50 feet (Zone A) of restored buffer after planting unless absolutely necessary. Additionally, selective applications of a pre-emergent herbicide will be used to control weedy competition. 3.3 Riparian Restoration A coastal headwater valley restoration approach is proposed for S100 and S200. Headwater stream restoration activities will seek to restore groundwater hydrology and connection of surface flows. All existing ditches within the buffer and nutrient offset areas will be filled such that diffuse flow and positive site drainage will be maintained as shown on the proposed grading plan in the Mitigation Plan. The coastal headwater valley restoration of S100 will end near the field edge as the valley turns southwest towards White Oak Swamp. At this location, the channel will gradually transition into a single thread channel. On S200, coastal headwater valley restoration will end as the stream flows into Ditch 3. At the end of Ditch 3, the S300 channel transitions into a single thread channel. At the bottom of S100, the stream will transition into a ‘C5’ stream type using appropriate riffle-pool morphology and grade control to accommodate vertical drops towards the remnant meander cutoff Starting at the upstream end of S300, structures such as geolifts with brush toes and brushy riffles in combination with bank grading will be strategically placed along the reach to stabilize the banks and stream. Ditches 1, 2, 3, and 4 are viable for nutrient offset credits per 15A NCAC 0295 (o)(8). Figure 6 depicts the nutrient and buffer restoration plan based on existing top of bank conditions. Figure 7 depicts the stream and wetland conceptual plan. The riparian buffer credits that are located adjacent to coastal Swiftie Buffer Mitigation & Nutrient Offset Plan Page 12 headwater valley restoration will be based on the centerline of the channel and will be reported in the As-Built Report. These credits will be withheld until the As-Built survey has been finalized. The revegetation plan for the entire riparian restoration area will include permanent seeding, planting bare root trees, live stakes, and controlling invasive species growth. If temporary seeding is applied from November through April, rye grain will be used and applied at a rate of 130 pounds per acre. If applied from May through October, temporary seeding will consist of browntop millet, applied at a rate of 40 pounds per acre. The permanent seed mix will consist of a riparian seed mix and wetland seed mix. The riparian restoration efforts along the project streams will be adjacent to reconstructed stream banks and will extend perpendicular from top of bank a minimum of 50 feet to a maximum of 200 feet. The riparian restoration efforts along the project ditches will extend perpendicular from top of bank a minimum width of 50 feet to a maximum width of 200 feet. Riparian buffer restoration efforts along ditches will be less than 50 feet in width. The riparian restoration activities will occur at the same time as the stream mitigation activities and not before. Therefore, the mitigation area where riparian restoration is being performed may be altered slightly depending on the implementation of the Swiftie Mitigation Bank. The riparian restoration areas will be surveyed, and the resulting information provided in the As-Built report and As-Built Survey. The As-Built report will also include any deviations that were made to the approved BPDP. 3.4 Riparian Preservation Riparian buffer preservation will include permanently protecting existing forested riparian areas with a conservation easement. This will include the left and right bank on the bottom section of S100, the left and right bank of the bottom of S300 and the left bank of S400. No more than 25 percent of the total area of buffer mitigation will be used for preservation credit pursuant to 15A NCAC 0295 (o)(5) and 15A NCAC 0295 (o)(4), and preservation buffer areas in excess will be protected in the conservation easement and not applied for credit. Buffer preservation can only generate buffer mitigation credit and is not transferrable into nutrient offset credits. 3.6 Planting The specific species composition to be planted was selected based on the community type, observation of occurrence of species in riparian buffers adjacent to the Parcel, and best professional judgement on species establishment and anticipated site conditions in the early years following project implementation. Trees will be planted at a density sufficient to meet the performance standards outlined in Rule 15A NCAC 02B 0295 of 260 hardwood trees per acre at the end of five years for the nutrient offset areas. The performance standards for the buffer restoration areas on the coastal headwater streams will be 210 hardwood trees per acre at the end of seven years. No one tree species will be greater than 50 percent of the established stems. An appropriate riparian seed mix will also be applied to provide temporary ground cover for soil stabilization and reduction of sediment loss during rain events in areas disturbed by stream and wetland construction as necessary. This will be followed by an appropriate permanent seed mixture. Planting is scheduled for Winter 2025 and the list of species proposed are shown in Table 3; however, the actual planting list will be provided in the As-Built report. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 13 Table 3. Tree Planting and Seed Mix List Scientific Name Common Name Tree Type Wetland Tolerance Riparian Bare Root Plantings – Primary Species List (Proposed 8’ x 8’ Planting Spacing @ 680 Stems/Acre) Betula nigra River birch Canopy FACW Nyssa sylvatica Black gum Canopy FAC Platanus occidentalis American sycamore Canopy FACW Ulmus americana American elm Canopy FAC Liriodendron tulipifera Tulip poplar Canopy FACU Quercus alba White oak Canopy FACU Quercus michauxii Swamp chestnut oak Canopy FACW Quercus phellos Willow oak Canopy FACW Quercus nigra Water oak Canopy FAC Taxodium distichum Bald cypress Canopy OBL Quercus lyrata Overcup oak Canopy OBL Cornus amomum Silky dogwood Canopy FACW Asimina triloba Pawpaw Canopy FAC Carpinus caroliniana Ironwood Canopy FAC Scientific Name Common Name Wetland Tolerance Seeding Rate (lb/acre) Permanent Seed Mix Scirpus cyperinus Woolgrass OBL 1.5 Dichanthelium clandestinum Deer tongue FACW 1.5 Elymus virginicus Virginia wildrye FAC 1.5 Panicum virgatum Switchgrass FAC 2.5 Schizachyrium scoparium Little blue stem FACU 2.5 Rudbeckia hirta Black-eyed susan FACU 1.5 Echinacea purpurea Coneflower NI 1.5 Juncus effusus Soft rush OBL 1.0 Note: Final species selection may change due to refinement or availability at the time of planting. Species substitutions will be coordinated between WLS and planting contractor prior to the procurement of seeding stock. 4 Monitoring and Maintenance Plan 4.1 Monitoring Protocol Permanent vegetation monitoring plots will be installed and evaluated within the buffer restoration and/or nutrient offset areas to measure the survival of the planted trees. Riparian buffer vegetation monitoring will be based on the Carolina Vegetation Survey-Ecosystem Enhancement Program Protocol for Recording Vegetation: Level 1-2 Plot Sampling Only Version 4.2 (Lee, 2006). Annual vegetation monitoring will occur each year for a minimum of five years on the nutrient offset areas and seven years on the coastal headwater buffer restoration areas and will be conducted during the fall season with the first year occurring at least five months from initial planting. Twenty-seven vegetation monitoring plots will be installed, and will be 100 meters squared in size, and will cover at least two percent of the riparian restoration area. Plots will be randomly placed throughout the planted riparian areas. The approximate Swiftie Buffer Mitigation & Nutrient Offset Plan Page 14 location of the plots is shown in Figure 8. Photos will be taken from all photo points each monitoring year and provided in the annual reports. All planted stems will be marked with flagging tape and recorded. All of the vegetation plots in Figure 8 will be monitored for both the buffer/nutrient bank and the stream/wetland bank. There will be additional vegetation plots for the stream/wetland bank. Planting is scheduled for winter 2025. The first annual monitoring activities will commence at the end of the first growing season, at least five months after planting has been completed and no earlier than the fall season. The following data will be recorded for all trees in the plots: species, common name, height, planting date (or volunteer), and grid location. The total number of volunteer woody stems will also be documented and reported. 4.2 Performance Standards for Vegetation Adjacent to Single-Thread Streams The measures of vegetative success for the Parcel will be the survival of at least four native hardwood tree species, where no one species is greater than 50 percent of the established stems, established at a density of at least 260 planted trees per acre at the end of Year 5. Appropriate native volunteer stems of native hardwood tree species may be included to meet the performance standards upon DWR approval. The Sponsor shall submit the annual monitoring report to DWR by December 31st of each year for five consecutive years and will follow the terms and conditions of the MBI. 4.3 Performance Standards for Vegetation Adjacent to Coastal Headwater Streams The measures of vegetative success for the Parcel will be the survival of at least four native hardwood tree species, where no one species is greater than 50 percent of the established stems, established at a density of at least 260 planted trees per acre at the end of Year 5 and 210 hardwood trees per acre at the end of Year 7 for riparian restoration areas adjacent to coastal headwater stream restoration. The seven years of monitoring only applies to the areas receiving credit under Rule 15A NCAC 02B .0295 (o)(2) for buffer mitigation. Appropriate native volunteer stems of native hardwood tree species may be included to meet the performance standards upon DWR approval. The Sponsor shall submit the annual monitoring report to DWR by December 31st of each year for seven consecutive years and will follow the terms and conditions of the MBI. 4.4 Performance Standard for Coastal Headwater Streams The performance standards for the coastal headwater streams will be detailed in the Stream Mitigation Plan in Sections 8.2 and 9.1.4. Performance standards must be met each monitoring year for a minimum of seven years to comply with 15A NCAC 02B .0295 (o)(2) for buffer mitigation. Confirmation from the USACE that stream performance standards have been met will need to be provided to DWR by the Bank Sponsor prior to issuance of credit releases for riparian buffer credit along the coastal headwater streams. The success criteria for the coastal headwater streams include channel formation within the valley or crenulation that must be documented through identification of field indicators consistent with those listed below, and continuous surface water flow within the valley or crenulation must be documented to occur every year for at least 30 consecutive days during the prescribed monitoring period. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 15 Headwater Stream Monitoring Channel Formation: During monitoring years 1 through 4, the preponderance of evidence must demonstrate a concentration of flow indicative of channel formation within the topographic low point of the valley or crenulation as documented by the following indicators: • Scour (indicating sediment transport by flowing water) • Sediment deposition (accumulations of sediment and/or formation ripples) • Sediment sorting (sediment sorting indicated by grain-size distribution with the primary path of flow) • Multiple observed flow events (must be documented by gauge data and/or photographs) • Destruction of terrestrial vegetation • Presence of litter and debris • Wracking (deposits of drift material indicating surface water flow) • Vegetation matted down, bent, or absent (herbaceous or otherwise) • Leaf litter disturbed or washed away During monitoring years 5 through 7, the stream must successfully meet the requirements above and the preponderance of evidence must demonstrate the development of stream bed and banks as documented by the following indicators: • Bed and banks (may include the formation of stream bed and banks, development of channel pattern such as meander bends and/or braiding at natural topographic breaks, woody debris, or plant root systems) • Natural line impressed on the bank (visible high-water mark) • Shelving (shelving of sediment depositions indicating transport) • Water staining (staining of rooted vegetation) • Change in plant community (transition to species adapted for flow or inundation for a long duration, including hydrophytes) • Changes in character of soil (texture and/or chroma changes when compared to the soils abutting the primary path of flow). 4.5 Photo 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 that the same locations and view directions on the Parcel are photographed each year. Visual inspections and photos will be taken to ensure that restored riparian areas are being maintained and compliant. 4.6 Visual Assessment Visual assessments should support the specific performance standards for each metric as described above. Visual assessments will be performed within the Parcel on a semi-annual basis during the five-year monitoring period. Problem areas with vegetative health will be noted (e.g., low stem density, vegetation mortality, invasive species, or encroachment). Areas of concern will be mapped and photographed accompanied by a written description in the annual report. Problem areas will be re-evaluated during Swiftie Buffer Mitigation & Nutrient Offset Plan Page 16 each subsequent visual assessment. Should remedial actions be required, recommendations will be provided in the annual monitoring report. 4.7 Reporting Performance Criteria Within 30 calendar days after the Parcel has been completed and all buffer and nutrient offset areas have been planted, WLS will submit a written notification to NCDWR that documents that all buffer and nutrient offset activities have been completed and that the conservation easement has been marked. The documentation will include the following: • Short summary of activities completed as required per the approved BPDP; • Figures representing all riparian restoration, riparian enhancement and riparian preservation activities where applicable; • Figures representing location of all monitoring plots installed; • Detailed planting plan- including type of species planted, density of species planted, and any modifications to the planting plan from what was approved in the BPDP; • Description of how the conservation easement boundaries were marked; • Any major changes to the conservation easement boundary or to the amount of Nutrient Offset Credits from what was proposed in the approved in the BPDP. Complete monitoring reports will be prepared in the fall of each monitoring year and submitted to NCDWR. Annual monitoring reports will be based on the most recent NCDWR Template. The monitoring period will extend five years beyond the completion of site planting or until performance criteria have been met. 4.8 Adaptive Management Plan In the event the site or a specific component of the site fails to achieve the necessary performance standards as specified in the approved Plan, the Sponsor shall notify and coordinate with NCDWR to develop a remedial action plan. The remedial action plan should describe the source or reason for the failure, a concise description of the corrective measures that are proposed, and a time frame for the implementation of the corrective measures. 4.9 Conservation Easement and Long-Term Management Plan The Bank Parcel will be protected in perpetuity by a recorded conservation easement. The conservation easement is designed to ensure that Ditches 1, 2, 3 and 4 remain hydrologically connected to Streams S100, S200, S300 and S400. The conservation easement will allow for annual monitoring and maintenance of the Project during the monitoring phase. Upon DWR issuance of the final credit release as described in the credit release schedule of the MBI, the Project stewardship will be transferred to a DWR approved long-term steward. WLS has partnered with Tar River Land Conservancy (TRLC) as the long-term steward for the Project site (See Appendix D of the Swiftie Mitigation Plan for conservation easement template and long term stewardship agreement letter). Swiftie Buffer Mitigation & Nutrient Offset Plan Page 17 Tar River Land Conservancy Attn: Derek Halberg 121 N. Main Street P.O. Box 1161 Louisburg, NC 27549 This party shall serve as conservation easement holder and long-term steward for the property and will conduct periodic inspection of the Project to ensure that restrictions required in the conservation easement are upheld. Any endowment funds for the conservation easement and deed restrictions shall be negotiated prior to transfer to the responsible party. Funding will be supplied by the responsible party on a yearly basis until such time and endowments are established. The use of funds from the Endowment Account is governed by NC General Statute GS 113A-232(d) (3). Payments and interest gained by the endowment fund may be used only for stewardship, monitoring, stewardship administration, and land transaction costs, if applicable. The management activities will be conducted in accordance with the terms and conditions of the approved MBI as agreed to by WLS. The conservation easement plat will depict all relevant ditch centerlines, top of banks, and riparian zones. The conservation easement boundaries will be identified in the field to ensure a clear distinction between the Bank Parcel and adjacent properties. Boundaries may be identified by a fence, marker, bollard, post, tree blazing, or other means as allowed by site conditions and/or conservation easement. Boundaries will be marked with signs identifying the property as a conservation site and will include the name of the long- term steward. All boundary markers will be installed prior to the submittal of Task 2 of the MBI. The easement boundary will be checked annually as part of monitoring activities, and the conditions, as well as any maintenance performed, will be reported in the annual monitoring reports. The land required for riparian area planting, management, and stewardship of the project includes portions of the parcel listed in Table 4. Palustrine Group LLC owns the property. WLS will place a conservation easement of 327 acres on the parcel and it will be recorded at the Edgecombe County Register of Deeds. TRLC will be noted on the conservation easement as the Grantee. Table 4. Existing Property Owner Owner of Record N/F PIN County Site Protection Instrument Deed Book and Page Numbers Acreage Protected Palustrine Group LLC (Owned by WLS) 4812-20-1970 Edgecombe Conservation Easement Book: 1773 Page: 0006 327 4.10 Financial Assurances Following approval of the BPDP, WLS will provide financial assurances in the form of a Performance Bond from a surety that is rated no less than “A-” as rated by A.M. Best. Financial assurances will be payable at the direction of the NCDWR to its designee or to a standby trust. The initial performance bond will be for 100 percent of the implementation costs, but not less than $150,000. In lieu of posting the performance bond, the Sponsor may elect to construct the project prior to the first credit release. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 18 After completion of the construction and monitoring devices, a monitoring bond for $100,000 will be secured to implement the monitoring and maintenance of the riparian restoration areas for a minimum of seven years. Performance bonds for monitoring shall be renewed to cover the next year’s monitoring period, with confirmation of renewal provided to NCDWR with each annual monitoring report when applicable. NCDWR reserves the right to alter the credit release schedule if monitoring reports are submitted without proof of bond renewals when applicable. 5 Credit Release Schedule Upon submittal of all appropriate documentation by the Sponsor, and subsequent approval by DWR, it is agreed that the mitigation credits associated with the Parcel will be released as described in the MBI and Table 5. The total buffer credits proposed adjacent to constructed coastal headwater valley streams will be dependent on the approval of the IRT to construct. The stream site will have to be constructed in its entirety and an As-Built Report and survey submitted to the IRT prior to DWR granting approval to generate buffer credits under Rule 15A NCAC 02B .0295 (o)(2). The area of the buffer credits shall be measured perpendicular to the length of the valley being restored. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 19 Table 5. Credit Release Schedule for Riparian Buffer and Nutrient Offset Credits Task Project Milestone % Nutrient Offset and Riparian Buffer Credit Release % Riparian Buffer Credit Release within Coastal Headwater Areas 1 Instrument and Plan Approved by DWR, Conservation Easement Recorded and Assigned*, Financial Assurance Posted, and Draft Stream & Wetland Mitigation Plan Approved by IRT 25 No Credit 2 Mitigation Site Earthwork, Planting and Installation of Monitoring Devices Completed, and all Applicable Permits Obtained 20 No Credit 3 Monitoring Financial Assurance Posted and Approval of As- Built Report 10 30 4 Monitoring Report #1 Approved by the DWR** and financial assurance renewed 10 10 5 Monitoring Report #2 Approved by the DWR** and financial assurance renewed 10 10 6 Monitoring Report #3 Approved by the DWR** and financial assurance renewed 10 5 7 Monitoring Report #4 Approved by the DWR** and financial assurance renewed 5 5 8 Monitoring Report #5 Approved by the DWR*, financial assurance renewed for coastal headwater buffer areas, and final site visit by DWR has been conducted for nutrient offset areas 10 20 9 Monitoring Report #6 Approved by the DWR** and financial assurance renewed for coastal headwater buffer areas N/A 10 10 Monitoring Report #7 Approved by the DWR** and final site visit by DWR has been conducted for coastal headwater buffer areas N/A 10 Total 100 100 * For specification, please see Section V of the MBI **DWR approval provided upon a determination that the site is meeting success criteria contained within the approved Plan 6 Mitigation Potential Out of 327 acres that will be protected with a permanent conservation easement, 26.7acres (1,164,026 ft²) are proposed to generate riparian buffer credits, and 24.1 acres (59,504.310 lbs. Nitrogen and 3,832.538 lbs. Phosphorus) are proposed to generate nutrient offset credits. Of the 24.1 acres proposed for nutrient offset credits, 2.1 acres are suitable for buffer mitigation credits at a ratio of 1:1 and at 100% full credit. The Sponsor may use the 2.1 acres of riparian restoration mentioned above for either nutrient offset credit or buffer mitigation credit, but not both. The remaining acres within the Conservation Easement will be used for wetland and stream mitigation pursuant to the Swiftie Mitigation Bank. Swiftie Buffer Mitigation & Nutrient Offset Plan Page 20 The Sponsor must request and receive approval from DWR prior to any credit conversions and transfers to the credit ledgers. With each conversion and transfer request submitted to the DWR, the Sponsor will provide all updated credit ledgers showing all transactions that have occurred up to the date of the request. The Sponsor will maintain two credit ledgers: one for coastal headwater buffer credits and one for Nitrogen nutrient offset credits and buffer credits. The total potential nutrient offset mitigation credits and riparian buffer credits that the Parcel will generate is summarized in Table 6. Table 6. [Swiftie Mitigation Bank], [20230026 v1], Project Credits Project Area N Credit Conversion Ratio (ft2/pound) P Credit Conversion Ratio (ft2/pound) Credit Type Location Subject? (enter NO if ephemeral or ditch 1) Feature Type Mitigation Activity Min-Max Buffer Width (ft)Feature Name Total Area (ft2) Total (Creditable) Area of Buffer Mitigation (ft2) Initial Credit Ratio (x:1)% Full Credit Final Credit Ratio (x:1) Convertible to Riparian Buffer? Riparian Buffer Credits Convertible to Nutrient Offset? Delivered Nutrient Offset: N (lbs) Delivered Nutrient Offset: P (lbs) Nutrient Offset Rural No Ephemeral Restoration 0-100 Ditch 1 81,991 81,991 1 100%1.00000 No —Yes 4,278.400 275.562 Nutrient Offset Rural No Ephemeral Restoration 101-200 Ditch 1 101,356 101,356 1 33%3.03030 No —Yes 5,288.892 340.646 Nutrient Offset Rural No Ditch Restoration 0-100 Ditch 2 97,359 97,359 1 100%1.00000 No —Yes 5,080.323 327.212 Nutrient Offset Rural No Ditch Restoration 101-200 Ditch 2 105,531 105,531 1 33%3.03030 No —Yes 5,506.749 354.677 Buffer Rural Yes Coastal Headwater Restoration 0-100 S100 140,381 140,381 1 100%1.00000 Yes 140,381.000 No —— Buffer Rural Yes Coastal Headwater Restoration 101-200 S100 116,031 116,031 1 33%3.03030 Yes 38,290.268 No —— Buffer Rural Yes I / P Restoration 0-100 S100 17,102 17,102 1 100%1.00000 Yes 17,102.000 Yes 892.405 57.478 Nutrient Offset Rural Yes I / P Restoration 101-200 S100 21,062 21,062 1 33%3.03030 Yes 6,950.467 Yes 1,099.043 70.787 Nutrient Offset Rural No Ditch Restoration 0-100 Ditch 3 95,108 95,108 1 100%1.00000 No —Yes 4,962.863 319.647 Nutrient Offset Rural No Ditch Restoration 101-200 Ditch 3 117,412 117,412 1 33%3.03030 No —Yes 6,126.715 394.608 Buffer Rural Yes I / P Restoration 0-100 S300 73,707 73,707 1 100%1.00000 Yes 73,707.000 Yes 3,846.130 247.720 Nutrient Offset Rural Yes I / P Restoration 101-200 S300 153,927 153,927 1 33%3.03030 Yes 50,795.961 Yes 8,032.117 517.330 Nutrient Offset Rural No Ditch Restoration 0-100 Ditch 4 118,526 118,526 1 100%1.00000 No —Yes 6,184.845 398.352 Nutrient Offset Rural No Ditch Restoration 0-100 Ditch 4 157,256 157,256 1 100%1.00000 No —Yes 8,205.828 528.519 Buffer Rural Yes Coastal Headwater Restoration 0-100 S200 3,421 3,421 1 100%1.00000 Yes 3,421.000 No —— Buffer Rural Yes Coastal Headwater Restoration 101-200 S200 121,073 121,073 1 33%3.03030 Yes 39,954.130 No —— ——— ——— ——— Totals (ft2):1,521,243 1,521,243 370,601.826 59,504.310 3,832.538 Total Buffer (ft2):471,715 471,715 Total Nutrient Offset (ft2):1,049,528 N/A Total Ephemeral Area (ft2) for Credit:0 0 Total Eligible Ephemeral Area (ft2):291,007 0.0%Ephemeral Reaches as % TABM Enter Preservation Credits Below Total Eligible for Preservation (ft2):157,238 110.1%Preservation as % TABM Credit Type Location Subject?Feature Type Mitigation Activity Min-Max Buffer Width (ft)Feature Name Total Area (sf) Total (Creditable) Area for Buffer Mitigation (ft2) Initial Credit Ratio (x:1)% Full Credit Final Credit Ratio (x:1) Riparian Buffer Credits Buffer Rural Yes I / P 0-100 S300 277,452 277,452 10 100%10.00000 27,745.200 Rural Yes I / P 101-200 S300 202,656 202,656 10 33%30.30303 6,687.648 Rural Yes I / P 0-100 S400 84,140 84,140 10 100%10.00000 8,414.000 Rural Yes I / P 101-200 S400 93,599 93,599 10 33%30.30303 3,088.767 Rural Yes I / P 0-100 S100 12,962 12,962 10 100%10.00000 1,296.200 Rural Yes I / P 101-200 S100 21,502 21,502 10 33%30.30303 709.566 Preservation Area Subtotals (ft2):692,311 692,311 Square Feet Credits 471,715 312,855.398 0 0.000 692,311 47,941.381 1,164,026 360,796.779 Square Feet Credits Nitrogen:54,765.775 Phosphorus:3,527.3401,049,528 TOTAL AREA OF BUFFER MITIGATION (TABM) TOTAL NUTRIENT OFFSET MITIGATION Mitigation Totals Nutrient Offset: Preservation: Total Riparian Buffer: Tar-Pamlico 03020101 19.16394 297.54099 Restoration: Enhancement: Mitigation Totals 1. The Randleman Lake buffer rules allow some ditches to be classified as subject according to 15A NCAC 02B .0250 (5)(a). last updated 08/03/2020 Swiftie Buffer Mitigation & Nutrient Offset Plan Page 22 7 Citations Lee, T.L, Peet, R.K., Roberts, S.D., and Wentworth, T.R. 2006. CVS-EEP Protocol for Recording Vegetation, Version 4.2. http://cvs.bio.unc.edu/protocol/cvs-eep-protocolv4.2- lev1-2.pdf. NC Environmental Management Commission. 2014. Rule 15A NCAC 02B.0295 - Mitigation Program Requirements for the Protection and Maintenance of Riparian Buffers. 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. United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS) Soil Survey Division. 1979. Soil Survey, Edgecombe County, NC. United States Department of Interior, Fish and Wildlife Service (USFWS). Threatened and Endangered Species in North Carolina (County Listing). Edgecombe County. 2023. Figures Figure 1 ............................................................................................................................... Service Area Map Figure 2 ......................................................................................................................... Project Location Map Figure 3 .................................................................................................................................. NRCS Soils Map Figure 4 .................................................................................................................................. Floodplain Map Figure 5 ............................................................................................................................. Existing Conditions Figure 6 ................................................................................ Proposed Buffer and Nutrient Restoration Plan Figure 7 ............................................................................. Stream and Wetland Mitigation Conceptual Plan Figure 8 ................................................................................................................ Proposed Monitoring Map !( SiteLocation Figure1Service Area Map Date: 9/1/2023 !(Site Location Service Area (HUC8 - 03020101) ´0 10 205 Miles 1 inch = 10 miles Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Palustrine Group LLC 4812-20-1970 Tar River Land Conservancy 4812-33-5285 ±0 1,500 3,000 Feet Figure2Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Map Projection: NAD_1983_StatePlane_NC_FIPS_3200_Feet Project Location Map !( o o PITT CO HALIFAX CO NASH CO MARTIN CO EDGECOMBE CO Lower Tar03020103 Fishing03020102 Upper Tar03020101 Lower Roanoke03010107 Contentnea03020203 Proposed Conservation Easement Parcel Boundary !(Project Location Vicinity Streams (NHD) HUC-8 5-Mile Aviation Zone o Airport Edgecombe County NC Counties 0 5 10 Miles075150Miles Project is located in: HUC8 - 03020101 HUC12 - 030201010803 Date: 9/8/2023 Legend Service Layer Credits: Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, (c) OpenStreetMap contributors, and the GIS User Community 36.00490, -77.60111 Figure3NRCS Soil Survey Map Date: 9/8/2023 Approximate Project Boundary Parcel Boundary ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Imagery data source: EDR Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina White OakSwamp Rd 33 S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Figure4FEMA Floodplain Map Date: 9/8/2023 Approximate Project Boundary Parcel Boundary Existing Stream FEMA Floodzone 100-yr (Zone AE) Floodway (Zone AE) 500-yr (Zone X) ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina "/" "/" White OakSwamp Rd 33 W01 W04 W02 W06 W05 Hydric Soil(W03) Ditc h 3 S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Dit c h 4 Ditch 2 D i t c h 1 Figure5Existing Conditions Map Date: 9/19/2023 Approximate Project Boundary Parcel Boundary Existing Roads Existing Stream Existing Ditches Existing Wetland (verified) Existing Hydric Soil Open Water Feature "/"Existing Culverts Existing Utility (powerline) ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina White OakSwamp Rd 33 W01 W02 W03 W04W06 W05 S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Figure6Proposed Buffer Map Date: 9/18/2023 Approximate Project Boundary Parcel BoundaryStream Mitigation Restoration HWV Restoration Enhancement Preservation No Credit Existing Ditches Buffer and Nutrient Mitigation Coastal HWV Buffer Restoration 0-100 ft Coastal HWV Buffer Restoration 101-200 ft Buffer Restoration 0-100 ft Buffer Preservation 0-100ft Buffer Preservation 101-200ft Nutrient 0-100 ft Nutrient 101-200 ft ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina "/" "/" White OakSwamp Rd 33 W01 W02 W03 W04W06 W05 Swift Creek MitigationBank As-built Stream S300 S6 0 0 Swift Cr e e k S500 S400 Wh i t e O a k S w a m p S700 S20 0 S 1 0 0 Figure7Proposed Mitigation Features Map Date: 9/18/2023 Approximate Project Boundary Parcel Boundary Existing Utility (powerline) "/"Existing Culverts (to remain) Existing Roads Existing Ditches Open Water Feature Wetland Mitigation Riparian Enhancement Non-Riparian Enhancement Riparian Re-establishment Non-Riparian Re-establishment Preservation Stream Mitigation Restoration HWV Restoration Enhancement Preservation No Credit ´0 1,000 2,000500 Feet 1 inch = 1,000 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Swift Creek Mitigation Bank Easement Boundary Swift Creek Mitigation Bank As-built Stream ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") !. !. !. !! !!!! !!!! !! !! !! !! !! !! !! 33 W01 W02 W03 W04 S300 S500 S400 S20 0 S 1 0 0 Figure8Proposed Monitoring Map Date: 9/19/2023 Stream Mitigation Restoration HWV Restoration Enhancement Preservation No Credit Existing Ditches Buffer and Nutrient Mitigation Coastal HWV Buffer Restoration 0-100 ft Coastal HWV Buffer Restoration 101-200 ft Buffer Restoration 0-100 ft Buffer Preservation 0-100ft Buffer Preservation 101-200ft Nutrient 0-100 ft Nutrient 101-200 ft Wetland Mitigation Riparian Enhancement Non-Riparian Enhancement Riparian Re-establishment Non-Riparian Re-establishment Preservation ´0 500 1,000250 Feet 1 inch = 500 feet Map Projection: NAD_1983_StatePlane_North_Carolina_FIPS_3200_Feet Swiftie Mitigation Project HUC8 Tar-Pam 01 - 03020101 Edgecombe County, North Carolina Approximate Project Boundary Parcel BoundaryProposed Vegetation Plots ")Fixed Vegetation Plots (7) ")Fixed Additional DWR Vegetation Plots (20) !.Flow Gauge !!Groundwater Gauge !.Crest GaugeCross Section Headwater Valley Riffle Pool Attachment A – DWR Determination and Viability ROY COOPER Governor ELIZABETH S. BISER Secrerary RICHARD E. ROGERS, JR . NORTH CAROLINA Environmental Quality D/recror June 26, 2023 Water & Land Solutions, LLC Attn: Catherine Roland (via electronic mail: cat herine(a),waterl an dsolutions.com ) Re: Site Viability for Buffer Mitigation and Nutrient Offset -Swiftie Site Near 35.996211, -77.6053 located off NC 33W in Tarboro, NC Tar-Pamlico 03020101 Edgecombe County Dear Ms. Roland, On February l, 2023, Katie Merritt, with the Division of Water Resources (DWR), received a request from you on behalf of Water & Land Solutions, LLC (WLS) for a site visit near the above-referenced site in the Tar-Pamlico River Basin within the 8-digit Hydrologic Unit Code 03020 IO I. The site visit was to determine the potential for nutrient offset and buffer mitigation within a proposed conservation easement boundary, which is more accurately depicted in the attached map labeled "Figure 9 -Proposed Buffer Map" (Figure 9) prepared by WLS and edited by DWR. The proposed easement boundary on the Figure 9, includes all riparian areas intended to be proposed as part of the mitigation site. This site is also being proposed as a stream and wetland mitigation site and therefore stream bank instability or presence of erosional rills within riparian areas were not addressed. Figure 1 labeled "Existing Aquatic Resources Map" prepared by WLS and edited by DWR was also used for this site viability assessment and is attached to this letter. On March 8, 2023, Ms. Merritt performed a site assessment of the subject site. Staff with WLS were also present. Ms. Merritt's evaluation of the features onsite and their associated mitigation determination for the riparian areas are provided in the table below. This evaluation was made from Top of Bank (TOB) and landward 200' from each feature for buffer mitigation pursuant to I SA NCAC 02B .0295 and for nutrient offset credits pursuant to 15A NCAC 02B .0703 using I SA NCAC 02B .0295 to define the mitigation type determinations. North C'arol111a D�partment of l·m 1ron111ental Qualtt) I DI\ ision of Water Hes ourc·es 512 North Salisbul) St reet I 1611 Mail Sm ice ( enter I Ralei gh North Carolina 27 69Q-1611 919 707 90()() DocuSign Envelope ID: 445ACE81-B3B0-4327-9B65-22142C79D570 Feature Classification Subject onsite !Q Buffer Rule 1 DI Ephemeral No D2 Ditch <3' No SI00 Stream Yes (starts at confluence w/DI & D2) S200 Stream No D3 Ditch >3' No Ends at S300 origin S300 Stream Yes (see map) D4 Ditch >3' No Ril!arian Land uses Buffer adjacent to Feature Credit (0-200') Viable Non-forested agricultural Yes6 fields Non-forested agricultural *see note fields Mostly non-forested Yes 2 agricultural fields; Forested at field edge to W04 label Combination of mature Yes2 forest with row crop agriculture beyond the wood line. A benn and lateral ditches are present that require removal (see maps) Existing utility line is present Non-forested agricultural No fields Combination of non-Yes2 forested agricultural fields and forested areas Combination of non-No forested agricultural fields and mature forest (see map) Page 2 of 4 Nutrient Offset Viable3 Yes Yes Yes (non- forested ag fields only) Yes (non- forested ag fields only) Yes Yes (non- forested ag fields only) Yes (non- forested ag fields only) Swiftie Site EBX June 26, 2023 Miti�ation T:rne Determination w/in riparian areas 4•5•8 Non-forested fields -Restoration Site per I SA NCAC 028 .0295 (o)(7) Non-forested fields -Restoration Site per 15A NCAC 028 .0295 (0)(8) *Buffer Mitigation Note -Assessment concludes the ditch meets I SA NCAC 028 .0295 (0)(8) (A, B, C, D & E). More infonnation is required to be provided in a mitigation plan for complete assessment. See rule. Non-forested fields -Restoration Site per ISA NCAC 028 .0295 (n) Forested areas -Preservation Site per 15A NCAC 02B .0295 (o)(5) Non-forested fields -Restoration Site per 15A NCAC 028 .0295 (o)(3) Forested areas -Preservation Site per ISA NCAC 028 .0295 (o)(4) Viable for generating only if berm is graded down and ditches within riparian areas are fi lied and planted. No credits within existing utility line. Non-forested fields -Restoration Site per I SA NCAC 02B .0295 (n) Non-forested fields -Restoration Site per I SA NCAC 02B .0295 (n) Forested areas -Preservation Site per 15A NCAC 028 .0295 (o)(5) Non-forested fields -Restoration Site per I SA NCAC 028 .0295 (n) DocuSign Envelope ID: 445ACE81-B3B0-4327-9B65-22142C79D570 Feature Classification Subject Riparian Land uses onsite !Q adjacent to Feature Buffer (0-200') Rule 1 S400 Stream Yes Right Bank is forested; Left Bank in non-forested agricultural fields but is not included in the project Buffer Nutrient Credit Offset Viable Viable3 Yes2 No Swiftie Site EBX June 26, 2023 Miti11ation T:rne Determination w/in riparian areas 4•5•8 Preservation Site per I SA NCAC 02B .0295 (o)(5) 1Subjectivity calls and stream origins for the features were determined by DWR in correspondence dated May 3, 2017 (DWR# 2016- 1271) and June 16, 2017 using the I :24,000 scale quadrangle topographic map prepared by USGS and the most recent printed version of the soil survey map prepared by the NRCS. 2The area of preservation credit within a buffer mitigation site shall comprise of no more than 25 percent (25%) of the total area of buffer mitigation per 15A NCAC 0295 (o)(5) and 15A NCAC 0295 (o)(4). Site cannot be a Preservation Only site to comply with this rule. 3NC Division of Water Resources -Methodology and Calculations/or determining Nutrient Reductions associated with Riparian Buffer Establishment 4 Determinations made for this Site are detennined based on the proposal provided in maps and figures submitted with the request.5 All features proposed for buffer mitigation or nutrient offset, must have a planted conservation easement established that includes the tops of channel banks when being measured perpendicular and landward from the banks, even if no credit is viable within that riparian area. 6The area of the mitigation site on ephemeral channels shall comprise no more than 25 percent (25%) of the total area of buffer mitigation per I SA NCAC 02B .0295 (o)(7). 7The area described as an Enhancement Site was assessed and detennined to comply with all of I SA NCAC 02B .0295(0)(6). Cattle exclusion fencing is required to be installed around the mitigation area to get buffer credit under this part of the rule. 8The confluence of a ditch to a stream is required to be secured with a conservation easement to preserve the hydrologic connectivity of ditches to streams to be viable to generate buffer and/or nutrient offset credits Determinations provided in the table above were made using a proposed easement boundary showing proposed mitigation areas and features shown on Figure 9 and Figure 1. The maps representing the proposal for the site are attached to this letter and initialed by Ms. Merritt on June 26, 2023. Substantial changes to the proposed easement boundary as well as any site constraints identified in this letter, could affect the Site's potential to generate buffer mitigation and nutrient offset credits. This letter does not constitute an approval of this Site to generate buffer and nutrient offset credits. Pursuant to I SA NCAC 02B .0295, a mitigation proposal and a mitigation plan shall be submitted to DWR for written approval prior to conducting any mitigation activities in riparian areas and/or surface waters for buffer mitigation credit. Pursuant to 15A NCAC 02B .0703, a proposal regarding a proposed nutrient load-reducing measure for nutrient offset credit shall be submitted to DWR for approval prior to any mitigation activities in riparian areas and/or surface waters. All vegetative plantings, perfotmance criteria and other mitigation requirements for ripa1ian restoration, enhancement and preservation must follow the requirements in I SA NCAC 02B .0295 to be eligible for buffer and/or nutrient offset mjtigation credits. For any areas depicted as not being viable for nutrient offset credit above, one could propose a different measure, along with supporting calculations and sufficient detail to suppo11 estimates of load reduction, for review by the DWR to determine viability for nutrient offset in accordance with I SA NCAC 02B .0703. Page 3 of 4 DocuSign Envelope ID: 445ACE81-B3B0-4327-9B65-22142C79D570 Swiftie Site EBX June 26, 2023 This viability assessment will expire on June 26, 2025 or upon approval of a mitigation plan by the DWR, whichever comes first. This letter should be provided in any nutrient offset, buffer, stream or wetland mitigation plan for this Site. Please contact Katie Merritt at (919) 707-3637 if you have any questions regarding this correspondence. Sincerely, Stephanie Goss, Supervisor 40 I and Buffer Permitting Branch Attachments: Figure I -Existing Aquatic Resources Map (edited by DWR); Figure 9-Proposed Buffer Map cc: File Copy (Katie Merritt) Page 4 of 4 DocuSign Envelope ID: 445ACE81-B3B0-4327-9B65-22142C79D570 500 1,000 2,000 ---c::::===:1-----•Feet 1 inch = 1,000 feet Existing Aquatic Resources Map Figure 1 DocuSign Envelope ID: 445ACE81-B3B0-4327-9B65-22142C79D570 Riparian Restoration Riparian Restoration Riparian Restoration Riparian Preservation Riparian Preservation 0 Map Projection: NAO_ 1983_StatePlane_Nor1h_Carobna_FIPS_3200_Feet 500 1,000 1 inch = 1,000 feet Proposed Buffer Map Date: 1/2512023 2,000 � Feet N Figure 9 DocuSign Envelope ID: 445ACE81-B3B0-4327-9B65-22142C79D570 Attachment B – Photo Log Ditch 1 looking downstream at transition to S100.Ditch 2 looking downstream at confluence with S100. Ditch 3 looking downstream at transition to S300.Ditch 4 looking downstream towards S400.