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HomeMy WebLinkAbout20160979 Ver 1_Instrument Mod-Prospectus_20160701Neu -Con Stream and Wetland Umbrella Mitigation Bank Poplar Creek Site INSTRUMENT MODIFICATION Neuse River Basin HUC 03020201 Prepared by: Resource Environmental Solutions, LLC Bank Sponsor: EBX-Neuse I, LLC 302 Jefferson Street, Suite 110 Raleigh, NC 27605 919-209-1056 July 2016 Table of Contents IINTRODUCTION.....................................................................................................................1 1.1 Project Description........................................................................................................................1 1.2 Project Location............................................................................................................................1 1.3 Service Area..................................................................................................................................1 1.4 Identified Watershed Needs..........................................................................................................1 1.5 Purpose and Objectives................................................................................................................. 2 1.6 Technical Feasibility.....................................................................................................................3 1.7 Site Ownership.............................................................................................................................. 3 2 QUALIFICATIONS..................................................................................................................3 2.1 Bank Sponsor................................................................................................................................3 2.2 Bank Sponsor Qualifications........................................................................................................ 4 2.3 Consultant..................................................................................................................................... 5 2.4 Consultant Qualifications.............................................................................................................. 5 3 EXISTING CONDITIONS........................................................................................................5 3.1 Existing Jurisdictional Waters of the U.S..................................................................................... 5 3.2 Soil Survey....................................................................................................................................5 3.2.1 General Soil Characteristics................................................................................................. 5 3.2.2 Site Mapped Soil Series......................................................................................................... 6 3.3 Endangered/Threatened Species................................................................................................... 6 3.4 Vegetation and Wildlife................................................................................................................7 3.5 Cultural Resources........................................................................................................................ 7 3.6 Constraints.................................................................................................................................... 7 4 PROPOSED BANK CONDITIONS..........................................................................................7 4.1 Conceptual Mitigation Plan.......................................................................................................... 8 4.1.1 Project Development............................................................................................................. 9 4.1.2 Stream Restoration and Enhancement................................................................................10 4.1.3 Monitoring.......................................................................................................................... 26 5 BANK ESTABLISHMENT AND OPERATION.....................................................................28 5.1 Establishment and Operation of the Bank................................................................................... 28 5.2 Proposed Credit Release Schedule.............................................................................................. 28 5.2.1 Initial Allocation of Released Credits............................................................................... 299 5.2.2 Subsequent Credit Releases................................................................................................ 30 5.3 Financial Assurances..................................................................................................................30 5.4 Proposed Ownership and Long -Term Management ................................................................... 30 5.5 Assurance of Water Rights......................................................................................................... 30 Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank i July 2016 List of Figures Figure 1. Project Vicinity Map Figure 2. USGS Topographic Map Figure 3. Historical Aerial Photography Figure 4. Soils Map Figure 5. NWI Wetlands Map Figure 6. Constraints Map Figure 7. Conceptual Design Plan Appendix — Landowner Authorization Forms Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank ii July 2016 I INTRODUCTION 1.1 Project Description The Poplar Creek Mitigation Site (the "Site") is located approximately three miles north of Smithfield and contains approximately 60 acres of conservation easement on parcels in Johnston County, NC. The Site will involve the restoration and enhancement of streams along an unnamed tributary to the Neuse River. The Site was identified by EBX-Neuse I, LLC as having potential to help meet the compensatory mitigation requirements for stream impacts in hydrologic unit 03020201 of the Neuse River Basin. This proposed Site will result in significant ecological improvements including water quality improvement, habitat restoration and a decrease in non -point source pollution from stormwater and agricultural practices. The Site is consistent with the 2010 Neuse RBRP. The conceptual design presents an opportunity to restore/ enhance 13,424 linear feet of stream and riparian corridor generating 9,206 Stream Mitigation Units (SMU). 1.2 Project Location The Site is located in Johnston County approximately three miles north of Smithfield, NC (Figure 1). The GPS coordinates of the site are 35.555200°N and -78.356735°W. The Site can be accessed from Lee Youngblood Loop, and Wilson Mills Road. 1.3 Service Area The Site will provide mitigation credits to offset unavoidable impacts to stream resources within the Upper Neuse subbasin (8 -digit USGS HUC 03020201). The Site is located within Neuse River Basin (8 -digit USGS HUC 03020201, 14 -digit USGS 03020201100040). The project area is comprised of four unnamed tributaries to Poplar Creek that flow north to south to their confluence with Poplar Creek (Figure 2). Poplar Creek flows to the Neuse River approximately two river -miles downstream. A combination of impoundment removal, stream restoration, and stream enhancement is proposed to increase hydrologic and ecological function and protect these features in perpetuity. The project's watershed is primarily rural with limited residential and concentrated animal feed operation (CAFO) development. The project parcels have been in agricultural use for several decades (Figure 3). Water quality stressors currently affecting the Site include livestock access, impoundment, forestry activities, CAFO, and impervious surface. There are no current conservation easements or options that conflict with the proposed full delivery project. All waters in the Neuse River basin are Impaired on an evaluated basis in the Fish Consumption category for mercury contamination. This is based on fish consumption advice from the NC Department of Health and Human Services (NC DHHS). Downstream in the Neuse River, low dissolved oxygen levels are present. 1.4 Identified Watershed Needs The North Carolina Division of Mitigation Services (DMS) develops River Basin Restoration Priorities (RBRP) to guide its restoration activities within each of the state's 54 cataloging units. The 2010 Neuse River Basin RBRP identified several restoration needs for the entire Neuse River Basin, as well as for Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 1 July 2016 HUC 03020201, specifically. Goals include promoting nutrient and sediment reduction in agricultural areas by restoring and preserving streams, wetlands, and riparian buffers. The proposed Site is designed to help meet these goals. The project will address stressors identified in the watershed through nutrient removal, sediment removal, runoff filtration, and improved aquatic and terrestrial habitat. These project goals will be achieved through stream enhancement and restoration. 1.5 Purpose and Objectives The purpose of the proposed Site is to generate compensatory mitigation credits for inclusion in the Neu - Con Umbrella Mitigation Bank in hydrologic unit 03020201 of the Neuse River Basin. The project goals address stressors identified in the watershed, and include the following: • Nutrient removal, • Sediment removal, • Invasive species removal, • Filtration of runoff, • Wildlife corridor enhancement and preservation, and • Improved aquatic and terrestrial habitat. The project goals will be addressed through the following project objectives: • Elimination and control of exotic invasive species, • Restoration of riparian forested stream buffers • Stabilization of eroding stream banks due to lack of vegetation, • Addition of large woody debris such as log vanes, log weirs, and root wads, and • Restoration of appropriate pattern, dimension, and profile in stream channels. The Site is located in the Poplar Creek Watershed (03020201100040), a Targeted Local Watershed (TLW). The Site supports many of the Neuse RBRP and TLW goals and presents an opportunity to restore/enhance 13,424 linear feet of stream and riparian corridor. The proposed Site will provide numerous ecological and water quality benefits within the Neuse River Basin. These benefits are not limited to the project area, but have more far-reaching effects throughout the Neuse River. The Site will provide improvements to water quality, hydrologic function, and habitat. As stated in the Neuse River Basin Restoration Priorities report (2010), the following restoration and protection goals are listed for the watershed: 1. Promote nutrient reduction in municipal areas through the implementation of stormwater best management practices, 2. Promote nutrient and sediment reduction in agricultural areas by restoring and preserving wetlands, streams, and riparian buffers, 3. Continue targeted implementation of projects under Nutrient Offset and Buffer programs, as well as focusing DOT -sponsored restoration in areas where they will provide the most functional improvement to the ecosystem, 4. Support the Falls Lake Watershed Management Plan; a separate prioritization process for DMS that will be developed in next 1-2 years, S. Continue to implement planning initiatives including DMS Phase LVL WP for the Upper Neuse (incorporates updated plans for the Ellerbe Creek, Lake Rogers/Ledge Creek, Lick Creek, Little Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 2 July 2016 Lick Creek, and Upper Swift Creek) and the Upper Neuse River Basin Association's Upper Neuse Watershed Management Plan, 6. Protect, augment, and connect Natural Heritage Areas and other conservations lands. The Site supports all of these listed goals and presents an opportunity to restore/enhance over 13,424 linear feet of stream and riparian corridor. 1.6 Technical Feasibility The technical feasibility of the Site is supported by EBX-Neuse I, LLC's extensive experience with stream and wetland restoration and enhancement in North Carolina and throughout the Southeast. Further preliminary survey, investigations, and design has been performed to ensure the feasibility of the proposed project. The absence of fatal flaws such as hydrologic trespass, historic/cultural resources, and protected species means the project is unlikely to be impeded by resource issues, or by objections from adjacent landowners. 1.7 Site Ownership The land required for the construction, management, and stewardship of this mitigation project includes portions of the parcels listed in Table 1. Table 1. Summary of Poplar Creek Site Current Land Ownership Owner of Record Agreement Date Agreement Expiration Date PIN E&F Properties, Inc. October 9, 2015 December 31, 2016 169500-17-3683 (Johnston County) 169500-27-6486; 169500-16-5546; 169500-25-0748; Dwight Youngblood Jr. September 10, 2015 December 31, 2016 169500-25-9195; 169500-36-5192; 169500-36-8766; 169500-47-2720 (Johnston County) The Agreement allows EBX-Neuse I to acquire permanent conservation easements on behalf of the State of North Carolina on a portion of the Site, which is needed for the Restoration Plan. EBX-Neuse I is prepared to convey an easement to the State, per the requirements of the RFP, on the acreage necessary to achieve the restoration objectives outlined in the restoration plan. 2 QUALIFICATIONS 2.1 Bank Sponsor The Poplar Creek Mitigation Site shall be established under the terms and conditions of the Neu -Con Umbrella Mitigation Bank made and entered into by EBX Neuse I, LLC, acting as the Bank Sponsor. Company Name: EBX Neuse I, LLC Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 3 July 2016 Company Address: 302 Jefferson Street, Suite 110, Raleigh, NC 27605 Contact Name: Daniel Ingram Telephone: (919) 209-1056 Email: dingram@res.us 2.2 Bank Sponsor Qualifications Resource Environmental Solutions, LLC (RES) was founded in February 2007 and grew organically from its roots restoring Louisiana wetlands to deliver mitigation solutions across Louisiana, Texas, Pennsylvania, West Virginia, Maryland, Virginia, North Carolina and South Carolina. In December 2014, RES acquired industry pioneer Environmental Banc & Exchange, LLC (EBX) and EBX-Neuse I, LLC (a partnership), expanding the RES knowledge base and geographic and technical delivery capabilities. RES develops and supplies ecological offsets to help public and private sector clients obtain required permits for unavoidable, project -related impacts to wetlands, streams, and habitats. RES helps clients proactively manage risk from operations in environmentally sensitive areas by providing proactive impact analyses, streamlining permitting processes, and limiting liability and regulatory exposure. • RES is the premier provider of ecological offset solutions in the US • RES founded in 2007 / EBX founded in 1997 • 110 mitigation sites permitted/in process • Conservation easements protecting roughly 400 sites • 32,000 restored wetland acres • 4,000 acres of custom mitigation solutions • 155 miles of stream restoration • Reduced over 240 tons of nutrients • Rehabilitated and preserved over 3,700 acres of endangered species habitats In North Carolina, RES and its affiliated companies have won over $70 million in mitigation contracts with North Carolina state agencies. With a regional office in Raleigh staffed with full-time professionals, RES has the ability to carry out existing projects, as well as secure and carry out new projects and banks in the State. A few representative projects implemented by RES are presented below. Neu -Con Umbrella Mitigation Bank (North Carolina): One of the first approved wetland and stream banks in North Carolina. The service area of the Bank is the entire Neuse River Basin. The Bank was established in April 2001. Initial contract: 22,964 linear feet of stream mitigation units (SMU) sold to North Carolina DOT based on credits produced from 3 stream restoration sites (initiated November 2000; sold all credits in November 2000; design initiated December 2001; construction completed on all sites Spring 2005; monitoring completed on all sites in Fall 2009). Additional sites added starting in 2008. Chesapeake Wetland Mitigation Bank (City of Chesapeake, Virginia): 545 -acre wetland mitigation bank in the Lower James Watershed in Virginia. The service territory of the Bank includes HUCs 02080206 and 02080208. The Bank was established in July 2009. The remainder of the 1,156 -acre property will be sold to the Great Dismal Wildlife Refuge (MBI finalized Spring 2009; construction completed Spring 2011; in the monitoring phase). Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 4 July 2016 Conoconnara Swamp Site (Halifax County, North Carolina): 87.0 WMU of wetland restoration and 5,050 SMU of stream restoration (initiated July 2005; construction completed Spring 2007; monitoring completed Fall 2011). 2.3 Consultant The Designer for the Site will be W.K. Dickson & Co., Inc (WK Dickson). Company Name: Company Address: Contact Name: Telephone Email: 2.4 Consultant Qualifications W.K. Dickson & Co., Inc. 720 Corporate Center Drive, Raleigh, NC 27607 Scott Sigmon (919) 782-0495 ssigmon@wkdickson.com For more than eighty years, WK Dickson has been providing engineering and consulting services throughout the southeastern United States. WK Dickson is an innovative, diversified organization of 108 professionals serving the total planning and design needs of their clients. WK Dickson has built a reputation of superior client satisfaction, technical competence, innovation, and integrity. WK Dickson has over ten years of experience with regional stream and wetland mitigation programs. They have participated in a variety of projects related to stream and wetland assessments and mitigation. WK Dickson also has project experience with NC buffer rules, buffer mitigation, and nutrient uptake mitigation. In total, WK Dickson has completed over 16 stream and wetland mitigation projects in North Carolina, and is currently implementing and designing mitigation projects in North Carolina, South Carolina, and Virginia. 3 EXISTING CONDITIONS 3.1 Existing Jurisdictional Waters of the U.S. Detailed wetland delineation has not been performed. The Site will be delineated and approved by the USACE during the design phase of the project. The stream channels were classified using North Carolina Division of Water Resources methodology. 3.2 Soil Survey 3.2.1 General Soil Characteristics The Site is located in the Rolling Coastal Plains Physiographic Province. Existing soil information from the Natural Resource Conservation Service (NRCS) shows the property is located within the Norfolk - Goldsboro -Rains soil association. This association is found on nearly level and gently sloping well drained to poorly drained soils on uplands of the coastal plain region. This soil association is located at the edge of broad interstream areas or on moderately broad to broad ridges in the upland areas. This soils association is dissected by a few intermittent and perennial streams (Figure 5). Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 5 July 2016 3.2.2 Site Mapped Soil Series Site soils are mapped by the NRCS as Marlboro -Cecil complex, Marlboro, Nason, Norfolk, Rains and Wehadkee on the low lying depressions and floodplains at the project Site (Figure 4). Rains and Wehadkee soils are generally poorly drained sandy loam to loamy soils and range from 0 to 2 percent slopes. Marlboro, Nason, and Norfolk are loamy well -drained soils typically located on slopes ranging from 2 to 15 percent. Rains and Wehadkee soils are listed on the NRCS hydric soil list as hydric or having hydric inclusions. The surrounding upland soils are mapped as Marlboro, Cowarts, Norfolk, and Wagram. Marlboro, Norfolk, and Wagram soils are well drained and have moderate permeability. Cowarts is also a well - drained soil; however, it has a moderate slow to slow permeability. Cowarts and Marlboro soil types are generally found on slopes ranging from 2 to 8 percent while Norfolk and Wagram are found on less steep slopes ranging from 0 to 6 percent. 3.3 Endangered/Threatened Species Plants and animals with a federal classification of endangered or threatened are protected under provisions of Sections 7 and 9 of the Endangered Species Act of 1973, as amended. The US Fish and Wildlife Service (USFWS) database (accessed 23 October 2015) lists four endangered species for Johnston County, North Carolina: Red -cockaded woodpecker (Picoides borealis), Tar River spinymussel (Elliptio steinstansana), Dwarf wedgemussel (Alismidonta heterodon) and Michaux's sumac (Rhus michauxii). No protected species or potential habitat for protected species was observed during preliminary site evaluations (Table 2). No protected species or potential habitat for protected species was observed during preliminary site evaluations. In addition to the USFWS database, the NC Natural Heritage Program (NHP) GIS database was consulted to determine whether previously cataloged occurrences of protected species are mapped within one mile of the project Site. Results from NHP indicated that there are two known occurrences within a one -mile radius of the project Site. The NHP database shows an occurrence of Kidney Sedge (Carex reniformis) historically mapped in 1949. Also documented in the database is an occurrence of Virginia Least Trillium (Virginia pusillum var. virginianum) which was mapped in 1992. Based on initial site investigations, no impacts to federally protected species are anticipated as a result of the proposed project. The environmental screening phase of the project will include USFWS coordination to confirm these findings. The proposed project offers some potential to improve or create suitable habitat for several Federal Species of Concern. Habitat may be improved or created for species that require riverine habitat by improving water quality, in -stream and near -stream forage, and providing stable conditions not subject to regular maintenance. The decision phase of the project will include USFWS coordination to confirm these findings. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 6 July 2016 Table 2. Federally Protected Species in Johnston County Common Name Scientific name Federal Status Habitat Present Record Status Vertebrate: Red -cockaded woodpecker Picoides borealis E No Current Invertebrate• Tar River spinymussel Elliptio steinstansana E No Current Dwarf wed emussel Alismidonta heterodon E No Current Vascular Plant: Michaux's Sumac Rhus Michauxii E No Current Kidney Sedge Carex reniformis E No Historical Virginia Least Trillium Virginia pusillum var. virginianum E No Historical 3.4 Vegetation and Wildlife Current land use around the project is primarily forest, pasture, and row crop. There are low-density residential lots, small agricultural impoundments, maintained vegetation, and two-lane roads also present in the immediate project vicinity. Forested riparian areas have been intermittently grazed or logged over time over time. As a result, the midstory and understory strata are highly variable. These areas most closely resemble disturbed Coastal Plain small stream swamp on low gradient areas and Coastal Plain Mesic Mixed Hardwood Forest. Common canopy species include loblolly pine (Pinus taeda), tuliptree (Liriodenon tulipera), red maple (Acer rubrum), white oak (Quercus alba), willow oak (Quercus phellos), and sweetgum (Liquidambar styraciflua). Sub -canopy species include Chinese privet (Ligustrum sinense), greenbriar (Smilax sp) muscadine (Vitus rotundifolia), flowering dogwood (Cornus florida), and spicebush (Lindera benzoin). Some exotics were noted, including Chinese privet, Nepalese browntop (Microstegium vimineum), and Japanese honeysuckle (Lonicera japonica). Chinese privet is widespread and locally moderately dense. National Wetland Inventory (NWI) mapping depicts some wetlands in the project area (Figure 6). During the initial evaluation, riparian wetlands were identified but are not prevalent. The Poplar Creek floodplain contains significant riparian wetlands. All potential wetland areas in the project corridor will be delineated during the mitigation plan phase of the project. 3.5 Cultural Resources A review of North Carolina State Historic Preservation Office (SHPO) GIS Web Service (accessed 25 October 2015) database revealed two state listed historic or archeological resources in the proposed project vicinity. The two historic state listed sites are JT1017-Robert Napoleon Youngblood House and JT -0880 -Nathaniel Mitchiner House both of which were listed in 1982. No impacts are anticipated from project activities to these potential surveyed listed sites. The environmental screening phase of the project will include SHPO coordination to confirm these findings. 3.6 Constraints Few potential constraints are present on the proposed Poplar Creek Site. One crossing is proposed for landowner access in an easement break between reaches F2 and F4. Lee Youngblood Loop Road (NCDOT) crosses Reach YB2. The existing culvert will be utilized and the proposed stream design will Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 7 July 2016 tie-in with the elevation in a stable manner. The Poplar Creek Site is located within five miles of Johnston County Airport; a General Aviation airport. The Site is not located on the extended runway centerline (approach) and will not interfere with any airspace exclusion zones. RES will coordinate with Johnston County Airport Authority to ensure potential conflicts are eliminated or minimized. Two gas pipeline easements cross the project area. RES will coordinate with pipeline representatives and regulatory staff to determine the appropriate actions to minimize impacts to the mitigation project. The project reaches are not FEMA regulated floodways. However, the lower portion of the project area is located on the Poplar Creek floodplain (Figure 7). RES and WK Dickson Project Engineer will coordinate with the Johnston County Floodplain Administrator to determine the appropriate level of study. If required, RES will conduct a FEMA flood study to either obtain a No -Rise Certification or CLOMR/LOMR. Construction access is slightly constrained in some areas by existing mature hardwood vegetation. A tree survey will be conducted to design the mitigation measures and access to minimize impacts to specimen trees. 4 PROPOSED BANK CONDITIONS 4.1 Conceptual Mitigation Plan The proposed Site will provide numerous ecological and water quality benefits within the Poplar Creek Watershed and Neuse River Basin. A combination of impoundment removal, stream restoration, and stream enhancement is proposed to increase hydrologic and ecological function and protect these features in perpetuity. The Poplar Creek Site presents the opportunity to provide up to 9,206 stream mitigation units. These will be derived from various combinations of Restoration, Enhancement Levels I and II, and Buffer Enhancement/ Stream Preservation. Table 3 details the mitigation types and SMUs generated per reach. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 8 July 2016 Table 3. Proposed Mitigation Summary by Stream Reach Reach ID Stream Classification Mitigation Type Linear Feet Ratio Buffer Multiplier SMUs F1 Intermittent Enhancement I 455 1.5 to 1 1.12 338 F2 Intermittent Buffer Enhancement 809 5 to 1 1.12 181 F4 Perennial Enhancement I 1,636 1.5 to 1 1.12 1,222 F5 Perennial Buffer Enhancement 732 5 to 1 1.10 160 F6 Perennial Restoration 1,085 1 to 1 1.14 1,237 F7 Perennial Restoration 1,274 1 to 1 1.14 1,452 F8 Perennial Buffer Enhancement 636 5 to 1 1.16 148 YB1-C Perennial Restoration 738 1 to 1 1.12 823 YB1-D Perennial Enhancement II 672 2.5 to 1 1.10 294 YB1-E Perennial Buffer Enhancement 807 5 to 1 1.16 187 YB2-A Perennial Restoration 1,072 1 to 1 1.12 1,201 YB2-B Perennial Enhancement 1 1,767 1.5 to 1 1.10 1,290 YB2-C Perennial Buffer Enhancement 475 5 to 1 1.12 106 YB3 Intermittent Enhancement I1 1,266 2.5 to 1 1.12 567 13,424 Total SMUs 9,206 4.1.1 Project Development Proposed mitigation for the Site involves Restoration, Enhancement Level I, Enhancement Level ll, and Buffer Enhancement/Stream Preservation. The stream system is situated on an unnamed tributary to the Neuse River. Current stream conditions along the proposed restoration reaches demonstrate significant habitat degradation as a result of impacts from livestock, forestry activities, ditching, and historic land uses. The proposed mitigation approach is based on preliminary data collected, functional considerations, and generally accepted practices in North Carolina. Over 25 cross sections were measured across the Site to assess the stability of the stream bed and banks. Photographs were taken at all cross sections and at selected locations throughout the Site to record general site conditions, including vegetation, stability, and water quality issues. Restoration reaches will typically include a meandering single -thread stream pattern constructed to mimic the natural planform of a low -gradient, sand/gravel bed channel. Proposed sinuosity will depend on local reference reach conditions and hydrologic and hydraulic modeling. As a result of the restoration of planform and dimension, periodic flooding and restored riparian buffer will provide the appropriate hydrology and sediment transport throughout this watershed (mitigation ratio 1:1). Impoundment removal is also proposed on two small agricultural ponds. These restoration areas will include a passive approach that will allow a natural channel to form with minimal intervention. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 9 July 2016 Enhancement Level I will include adjustments to the cross-sectional area of the existing channel and floodplain; as well as installation of wood and rock structures to adjust and enhance bedform (mitigation ratio 1.5:1). Enhancement Level 1I treatments include livestock exclusion and bank stabilization (mitigation ratio 2.5:1). Buffer Enhancement/Stream Preservation allows high quality aquatic habitat to be protected and enhanced through invasive species treatments and supplemental plantings in the riparian buffer (mitigation ratio 5:1). Invasive species treatment will occur throughout the easement area as needed. The Poplar Creek Site easement areas are non-contiguous as proposed. However, each of the four easement areas contains an entire tributary catchment from origin to Poplar Creek. These easement areas contribute to the protection and enhancement of water quality and habitat improvements on Poplar Creek and downstream habitats. Poplar Creek is functionally stable and provides high quality habitat in the Project area. The presence of extensive floodplain wetlands and riparian buffers offers protection from future development, negating the need for formal easement protection. As such, the four distinct project reaches, coupled with the existing high quality Poplar Creek, form an extensive aquatic system that will be fully functional and protected following implementation of the Poplar Creek full delivery project. 4.1.1 Stream Restoration and Enhancement Stream restoration efforts will be accomplished through analyses of geomorphic conditions and watershed characteristics. The design approach will apply a combination of analytical and reference reach based design methods that meet objectives commensurate with both ecological and geomorphic improvements. Proposed treatment activities may range from minor bank grading and planting to re-establishing stable planform and hydraulic geometry. For reaches requiring full restoration or extensive enhancement, natural design concepts will be applied and verified through rigorous engineering analyses and modeling. The objective of this approach is to design a geomorphically stable channel that provides habitat improvements and ties into the existing landscape. The Site design approach will begin with a thorough study of existing conditions, including the on-site streams and ditches, valleys, and watershed. Design parameters, including active channel, habitat and floodplain features will be developed from analysis of suitable reference streams. Analytical design techniques will be an important element of the project, and will be used to determine the design discharge and to verify the design as a whole. Engineering analysis will be performed using various hydrologic and hydraulic models to verify the reference reach -based design. A combination of methods, including HEC -HMS, Hydraflow Hydrographs, and flood frequency analysis, will be used to calculate flows received by the channel for bankfull and other significant storm events. A HEC -RAS model will then be used to simulate water surface elevations of flows generated by the hydrologic analysis. The development of the HEC models is an important component to the design; therefore, model input parameters are field verified when possible. Through this hydrologic analysis, the design discharge (typically referenced as bankfull or dominant discharge) will be determined. The subsequent design will be based on this calculated discharge. Design parameters developed through the analyses of reference reach data and hydrologic and hydraulic modeling will be confirmed using the Stable Channel Design function and/or the Sediment Transport Analysis components within HEC -RAS. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 10 July 2016 Engineering analyses are performed concurrently with geomorphic and habitat studies. While stream design will be verified by simulations of hydrology and fluvial processes, analogs of desirable habitat features will be derived from reference sites and integrated into the project design. Both in -stream and riparian habitat features will be designed. In -stream structures such as root wads, log structures, and cross weirs will be used throughout the project to act as grade control and for bank stabilization by dissipating and redirecting the stream's energy. Bank stability may be further enhanced through the installation of brush mattresses and cuttings bundles consisting of species such as black willow (Salix nigra) and silky dogwood (Cornus amomum). In -stream habitat is highly dependent on available cover and organic material. A quantitative habitat assessment method will be used to measure type, location, and quantity of habitat in the reference streams. During design, the habitat assessment results will be scaled appropriately to the design parameters such that the quantity and placement of the habitat features along the restored channel will mimic reference conditions. This process provides a natural channel design that addresses aquatic function improvements in addition to stability. Stream banks will be stabilized using a combination of grading, erosion control matting, plantings, native material revetment techniques (i.e., bioengineering), and structure placement. The stream and adjacent riparian areas will be protected by a minimum 50 -foot permanent conservation easement which will be fenced to exclude livestock as needed. In most areas the riparian buffer width will exceed 100 feet on each bank. The individual Reach Worksheets provide specific attributes for each reach and rationale for proposed interventions. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 11 July 2016 Project Name: Poplar Creek Mitigation Type: Enhancement I Reach Length: 455 Reach ID: F1 Mitigation Ratio: 1.5 : 1 Buffer Multiplier: 1.12 SMU Yield: 338 Reach Data Hydrology: Intermittent Bank Height: 1.0 ft. Channel Class. Score: 21.5 Drainage Area: 97.3 Ac. Channel Width: 3.0 ft. Channel Habitat Score: 44 Measured XS Area: 2.5 ft2 Bank Angle: 800 LB Buffer Width: 15-30 Regional CurveXSArea: 4.2 ftz Bed Material: Sand RB Buffer Width: 50-100 Watershed Conditions Impairments Iv+ Sediment r Nutrients r Riparian Buffer r Biological (%0 Hydrological Function W Stability W Instream Habitat r Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: 30-70 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors r Livestock r Stormwater r CAFO r Maintained Vegetation F_ Tiles/Ditches r Row Crops r Impervious Surfaces r Invasivespecies l Channelization r Impoundment r Debris/Trash 7 Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: High Hydrologic: Moderate FEMA Floodplain: No Sediment: High Geomorphic: Low Utilities: No Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Low Wetlands: No Design Notes: Reach F1, a sand bed intermittent channel, flows in a westerly direction along the edge of an agricultural field. The channel has been channelized along the upstream segment, and spoil piles are located intermittentlyjustoff the top of banks. The reach lacks beciform features, and is oversized. The riparian buffer is in poor condition and consists of scrubby vegetation, few hardwoods, and privet. Enhancement activities will include invasive species treatment and regrading the channel by widening the banks and raising the bed such that cut and fill will be balanced. In -channel structures, such as brush beds and log sills will be installed to increase organic matter in the system, while also providing stability and reductions in sediment loads. The riparian buffers will be planted with native vegetation thatwill filter runoff from adjacent cultivated areas. An agricultural BMP will be installed atthe upper end of the reach to provide nutrient/sediment control and flow attenuation from the adjacent agricultural fields. a r, a i� Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 12 July 2016 Project Name: Poplar Creek Mitigation Type: Buffer Enhancement Reach Length: 809 Reach ID: F2 Mitigation Ratio: 5.0 : 1 Buffer Multiplier: 1.12 SMU Yield: 181 Reach Data Hydrology: Intermittent Bank Height: 2.0 ft. Channel Class. Score: 26 Dra i nage Area: 155 Ac. Channel Width: 4.0 ft. Channel Habitat Score: 71 Measured XS Area: 6.0 ft' Bank Angle: 800 LB Buffer Width: >100 Regional Curve XS Area: 5.7 ftz Bed Material: Sand RB Buffer Width: >100 Watershed Conditions Impairments Fyo Sediment W Nutrients FY-0 Riparian Buffer ry—O Biological F Hydrological Function r%O— Stability FW Instream Habitat tv_� Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiopusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On-Site Water Quality/Habitat Stressors Livestock ry—o Stormwater r— CAFO r Maintained Vegetation Tiles/Ditches ty-1 Row Crops Impervious Surfaces ty—O Invasive Species WO Channelization r Impoundment Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: No Sediment: Moderate Geomorphic: Moderate Utilities: No Stormwater: Low Physiochemical: Moderate Crossings: Yes Habitat: Moderate Wetlands: No Design Notes: Reach F2 is an intermittent channel thatflows to the southwest, starting atthe confluence of F1 and an ephemeral reach and terminates at a farm path crossing. The reach is a stable sand/gravel stream, having low banks and frequent access to a wide floodplain. The riparian buffer averages over 100 feet wide along the entire reach and is composed of a mix of mature and young hardwoods and localized areas of privet. Enhancement activities will include buffer plantings of native species and invasive species treatment. Proposed buffer activities will improve riparian areas that will filter runoff from adjacent agricultural areas, thereby reducing nutrient and sediment loads to the channel. The improvement and protection ofthe riparian areas will also maintain wildlife corridors throughout the project area. 1 t , J Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 13 July 2016 Project Name: Poplar Creek Mitigation Type: Enhancement I Reach Length: 1,636 Reach ID: F4 Mitigation Ratio: 1.5 : 1 Buffer Multiplier: 1.12 SMU Yield: 1,222 Reach Data Hydrology: Intermittent Bank Height: 3.5 ft. Channel Class. Score: 26.5 Dra i nage Area: 198.2 Ac. Channel Width: 12.5 ft. Channel Habitat Score: 57 Measured XS Area: 28.9 ft2 Bank Angle: 700 LB Buffer Width: >100 Regional Curve XS Area: 6.7 ftz Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments W/ sediment r Nutrients r Riparian Buffer r Biological 7 Hydrological Function r Stability r Instream Habitat r Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: 30-70 1 Percent Channel Incision: 30-70 On -Site Water Quality/Habitat Stressors r Livestock r Stormwater r CAFO r Maintained Vegetation r— Tiles/Ditches r— Row Crops 7 Impervious Surfaces r Invasive Species r Channelization r Impoundment 7 Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: No Sediment: High Geomorphic: Low Utilities: No Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: No Design Notes: Reach F4, a sand/gravel bed channel, begins atthe existing crossing atthe reach F2 break and flows to the south. The channel is incised and over widened in some areas. The channel exhibits moderate bank erosion throughout as most banks appear to be unstable. The riparian buffer averages over 100 feet wide along the entire reach and is composed of a mix of mature and young hardwoods and localized areas of privet. Enhancement activities will include bank grading and stabilization, installation of log grade control structures to increase channel bed elevations, engineered debris jams, brush toes, and live stakes. The riparian area will be supplemented with plantings of native species and invasive species treatment will be applied to areas of privet. A 60' easement break and upgraded culvert crossing is proposed atthe upstream end ofthe reach. Stabilization through in stream structures and bank treatments will enhance hydrologic function and reduce sediment loads to downstream channels. R. r A P Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 14 July 2016 Project Name: Poplar Creek Mitigation Type: Buffer Enhancement Reach Length: 732 Reach ID: F5 Mitigation Ratio: 5.0 : 1 Buffer Multiplier: 1.10 SMU Yield: 160 Reach Data Hydrology: Intermittent Bank Height: 2.0 ft. Channel Class. Score: 26.5 Dra i nage Area: 211 Ac. Channel Width: 10.5 ft. Channel Habitat Score: 77 Measured XS Area: 12.7 ft2 Bank Angle: 700 LB Buffer Width: >100 Regional Curve XS Area: 7.0 ftz Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments Fyo Sediment W Nutrients FY-0 Riparian Buffer P Biological F Hydrological Function r%O- Stability FY-0 Instream Habitat tv_� Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On-Site Water Quality/Habitat Stressors Livestock Stormwater I- CAFO F_ Maintained Vegetation Tiles/Ditches r Row Crops r Impervious Surfaces ty-O Invasive Species i✓ Channelization r Impoundment r Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: No Sediment: Moderate Geomorphic: Moderate Utilities: Yes Stormwater: Low Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: No Design Notes: Reach F5 is an intermittent channel thatflows to the south, starting atthe break with F4 and terminates atthe intersection oftwo gas line easements. The reach is a stable sand/gravel stream, riffle dominated, and has low banks and frequent access to a widefloodplain. The riparian buffer averages over 100 feetwide along the entire reach and is composed of a mix of mature and young hardwoods and privet is moderate throughout. Enhancement activities will include buffer plantings of native species and invasive species treatment. Proposed buffer activities will improve riparian areas that will filter runoff from adjacent agricultural areas, thereby reducing nutrient and sediment loads to the channel. The improvement and protection ofthe riparian areas will also maintain wildlife corridors throughout the project area. r t rr J L ..i,f ria �. 7 . t w f •� +' t M4 y ni' 3+' Sy Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 15 July 2016 Project Name: Poplar Creek Mitigation Type: Restoration Reach Length: 1,085 Reach ID: F6 Mitigation Ratio: 1.0: 1 Buffer Multiplier: 1.14 SMU Yield: 1,237 Reach Data Hydrology: Impoundment Bank Height: NA Channel Class. Score: NA Drainage Area: 268 Ac. Channel Width: NA Channel Habitat Score: NA Measured XS Area: NA Bank Angle: NA LB Buffer Width: 0-15 Regional CurveXSArea: 8.2 ft2 Bed Material: Pond RB Buffer Width: 0-15 Watershed Conditions Impairments i4ol Sediment r Nutrients W Riparian Buffer r Biological W Hydrological Function W Stability r Instream Habitat r Terrestrial Habitat Conservation Areas: No Notes: Rare Species: No Notes: Kidney Sedge (Corexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginia pusillum var. virginianum ) historically mapped 1.0 mile away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 Cn-Site Water Quality/Habitat Stressors r_ Livestock r Stormwater (° CAFQ r Maintained Vegetation F_ Tiles/Ditches r Row Crops r Impervious Surfaces r Invasive Species W Channelization r Impoundment Debris/Trash 7 Aquatic Passage Land Use Im acts Functional Condition Constraints Nutrient: Moderate Hydrol ogi c:1 Low FEMA Floodplain:1 No Sediment: Moderate Geomorphic: Low Utilities: Yes Stormwater: Moderate Physiochernical:1 Moderate Crossings:1 No Habitat: Moderate Wetlands: Yes Design Notes: Reach F6 correlates to the existing online impoundment located just southeast of a gas line easement and reach F5. The pond is approximately 3 acres in size and was constructed between 1950 and 1961. The current WSELwithin the pond is well below normal pool as the outlet structure is in disrepair and is no longer functioning properly. There is a wooded buffer that borders the pond on all sides except along the south side, wherethere is an agricultural field. Restoration activities will include draining the pond and removing the associated dam. Construction activities will be suspended after breaching to allow for the pond bed to dry out and stabilize, also allowing for a channel to cut naturally through the bed. After a channel has formed, in -stream structures such as log grade controls, brush toes, and log sills will be installed for stability where needed, and channel banks will begraded to ensure hydraulic capacity is appropriate. Buffer improvements will include revegetating the pond bed with native species that will filter runoff from adjacent agricultural areas, thereby reducing nutrient and sediment loads to the channel. An agricultural BMP will be installed atthe upper end of the reach to provide nutrient/sediment control and flow attenuation from runoff received from the gas line easement. ME Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 16 July 2016 Project Name: Poplar Creek Mitigation Type: Restoration Reach Length: 1,274 Reath ID: F7 Mitigation Ratio: 1.0 : 1 Buffer Multiplier: 1.14 SMU Yield: 1,452 Reach Data Hydrology: Perennial Bank Height: 3.0 ft. Channel Class. Score: 31 Dra i nage Area: 283 Ac. Channel Width: 12.5 ft. Channel Habitat Score: 43 Measured XS Area: 27.8 ft2 Bank Angle: 70° LB Buffer Width: >100 Regional Curve XS Area: 8.6 ftz Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments r Sediment r Nutrients rv— Riparian Buffer r Biological 7 Hydrological Function 7 Stability r Instream Habitat r Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carex reniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile RareS ecies: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: 30-70 Percent Channel Incision: 30-70 On -Site Water Qua lity/Habi tat Stressors 7 Livestock 7 Stormwater 7 CAFO 7 Maintained Vegetation r Tiles/Ditches r Row Crops r Impervious Surfaces r Invasive Species Channelization rv— Impoundment r Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Low FEMA Floodplain: Yes Sediment: Moderate Geomorphic: Low Utilities: No Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Low Wetlands: Yes Design Notes: Reach F7 flows in a southerly direction below the existing dam associated with reach F6. Due to the impoundment, this reach does not consistently receive flow and therefore does not exhibit consistent channel features along the entire reach. Channel bed and bank features are present for approximately 350 to 400 feet downstream of the dam, and features occur intermittently down to the confluence with reach F8. The riparian buffer averages over 100 feet wide along the entire reach and is composed of a mix of mature and young hardwoods and localized areas of privet. Restoration activities will include constructing a new channel within the natural valley with appropriate dimensions and pattern. In -stream structures such log grade controls, log sills, and woody debris will be installed for stability and to improve habitat. Buffer improvements will consist of planting of native species and invasive species treatment. The improvement and protection of the riparian areas will also maintain wildlife corridors throughout the project area. s. r r r'. i Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 17 July 2016 Project Name: Poplar Creek Mitigation Type: Buffer Enhancement Reach Length: 636 Reach ID: F8 Mitigation Ratio: 5.0 : 1 Buffer Multiplier: 1.16 SMU Yield: 148 Reach Data Hydrology: Perennial Bank Height: 1.0 ft. Channel Class. Score: 31 Dra i nage Area: 291 Ac. Channel Width: 10.0 ft. Channel Habitat Score: 76 Measured XS Area: 9.8 ft' Bank Angle: 450 LB Buffer Width: >100 Regional Curve XS Area: 8.6 ft' Bed Material: Sand RB Buffer Width: >100 Watershed Conditions Impairments ry—O Sediment r Nutrients r Riparian Buffer r Biological r_ Hydrological Function W Stability W Instream Habitat r Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors r Livestock ry—, Stormwater 7 CAFO Maintained Vegetation r Tiles/Ditches r Row Crops r Impervious Surfaces W Invasive Species 7 Channelization r Impoundment r Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: Yes Sediment: Moderate Geomorphic: Moderate Utilities: No Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: Yes Design Notes: Reach F8 is a perennial channel that originates ata seep just south ofthe impoundment associated with reach F6 and flows in a southeasterly direction to the confluence with Poplar Creek. The project reach encompasses the section between the confluences with reach F7 and Poplar Creek. The channel is stable with low banks and readily accesses thefloodplain characteristic of a stream/swamp system. The riparian buffer averages over 100 feet wide along the entire reach and is composed of mature hardwoods and localized areas of privet. Enhancement activities will include buffer plantings of native species and invasive species treatment. The improvement and protection ofthe riparian areas will also maintain wildlife corridors throughoutthe project area. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 18 July 2016 Project Name: Poplar Creek Mitigation Type: Restoration Reach Length: 738 Reach ID: Y1131 -C Mitigation Ratio: 1.0: 1 Buffer Multiplier: 1.12 SMU Yield: 823 Reach Data Hydrology: Intermittent Bank Height: 2.0 ft. Channel Class. Score: 24 Drai nage Area: 51 Ac. Channel Width: 8.0 ft. Channel HabitatScore: 50 Measured XS Area: 12.0 ft' Bank Angle: 700 LB Buffer Width: 50-100 Regional Curve XS Area: 2.7 ftZ Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments I_ Sediment NO Nutrients r Riparian Buffer r Biological IW Hydrological Function Fv Stability r Instream Habitat r Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: >70 Percent Channel Incision: 30-70 On -Site Water Quality/Habitat Stressors r Livestock r7o Stormwater r CAFO r Maintained Vegetation r_ Tiles/Ditches r Row Crops Impervious Surfaces r Invasive Species V_ Channelization r7o Impoundment r Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: High Hydrologic: Low FEMA Floodplain: No Sediment: High Geomorphic: Low Utilities: Yes Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Low Wetlands: No Design Notes: Reach YB1-C flows in a southwesterly direction below the existing impoundmentjust south of Lee Youngblood Loop. This reach does not consistently receive flow as there does not appear to be a functioning outlet structure within the pond. However, there is a small pipe that regulates normal pool elevation located at the western edge of the dam. This pipe conveys flowthrough an actively eroding gully down to the valley floor below the dam. As a result, there are no well defined channel features for approximately 200 feet downstream of the dam. Where the channel is defined, the degree of incision and bank stability significantly increases as the reach approaches the existing gas line easement. The banks are irregular shaped throughout dueto hoof shear and cattle access. The riparian buffer is in good condition and is a mix of hardwoods and disturbed understory. Restoration activities will include cattle exclusion and constructing a new channel within the natural valley with appropriate dimensions and pattern. In -stream structures such as log grade controls, log sills, and woody debris will be installed for stability and to improve habitat. Buffer improvements will include plantings of native species and invasive species treatment. Stabilization through in -stream structures and bank treatments will enhance hydrologic function and reduce sediment loads to downstream channels. 9 Y A' {+ ♦ Y. T S ��i,• J Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 19 July 2016 Project Name: Poplar Creek Mitigation Type: Enhancement II Reach Length: 672 Reach ID: YB1-D Mitigation Ratio: 2.5 : 1 Buffer Multiplier: 1.10 SMU Yield: 294 Reach Data Hydrology: Intermittent Bank Height: 2.0 ft. Channel Class. Score: 26 Drainage Area: 68.4 Ac. Channel Width: 10.0 ft. Channel Habitat Score: 65 Measured XS Area: 12.5 ft2 Bank Angle: 600 LB Buffer Width: >100 Regional Curve XS Area: 3.3 ft2 Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments Sediment ry—O Nutrients h+ Riparian Buffer Biological F%70 Hydrological Function I✓ Stability � Instream Habitat ry-1 Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: 30-70 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors F Livestock I✓ Stormwater CAFO Maintained Vegetation F Tiles/Ditches r Row Crops Impervious Surfaces r%0_ Invasive Species Fy—' Channelization V Impoundment h Debris/Trash Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: Yes Sediment: Moderate Geomorphic: Moderate Utilities: Yes Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: No Design Notes: Reach YB1-D begins just downstream of a gas line easement and flows to the south. The channel bed is comprised primarily of sand with some gravel and cobble and is relatively stable within the upper segment. The downstream portion ofthe reach is slightly incised and exhibits minor bank erosion. Also, sediment deposition is present throughout this section. The riparian buffer is in good condition and is a mix of young and mature hardwoods and pines. Enhancement/stabilization activities will include adding a few in -stream structures to increase bedform diversity, minimal bank grading, and invasive species treatment. Stabilization through minor bank grading and in -stream structures will enhance hydrologic function and reduce sediment loads to downstream channels. � 6 t r _ Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 20 July 2016 Project Name: Poplar Creek Mitigation Type: Buffer Enhancement Reach Length: 807 Reach ID: YB1-E Mitigation Ratio: 5.0 : 1 Buffer Multiplier: 1.16 SMU Yield: 187 Reach Data Hydrology: Intermittent Bank Height: 1.5 ft. Channel Class. Score: 26 Drainage Area: 83.3 Ac. Channel Width: 6.0 ft. Channel Habitat Score: 76 Measured XS Area: 6.0 ft2 Bank Angle: 600 LB Buffer Width: >100 Regional Curve XS Area: 3.8 ftz Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments r%1 Sediment P1 Nutrients ry_� Riparian Buffer r Biological r Hydrological Function r Stability rv— Instream Habitat W_ Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors r Livestock (W Stormwater r— CAFO r Maintained Vegetation r— Tiles/Ditches r— Row Crops r Impervious Surfaces W Invasive Species IY1 Channelization W Impoundment r Debris/Trash Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: Yes Sediment: Moderate Geomorphic: Moderate Utilities: No Stormwater: Low Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: Yes Design Notes: Reach YB1-E, an intermittent stream, flows to the southeast within the Poplar Creek floodplain. This sand/gravel bed channel is stable having low banks and frequentaccess to thefloodplain. The channel flows through an old beaver impoundment towards the downstream end. The riparian buffer averages over 100 feet wide along the entire reach and is composed of young mature hardwoods and localized areas of privet. Enhancement activities will include buffer plantings of native species and invasive species treatment. The i mprovement a nd of the riparian areas will also maintain wildlife corridors throughoutthe project area. �protection yy 1' a `yv SE 4' Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 21 July 2016 Project Name: Poplar Creek Mitigation Type: Restoration Reach Length: 1,072 Reach ID: YB2-A Mitigation Ratio: 1.0: 1 Buffer Multiplier: 1.12 SMU Yield: 1,201 Reach Data Hydrology: Impoundment Bank Height: NA Channel Class. Score: NA Drainage Area: 49.8 Ac. Channel Width: NA Channel Habitat Score: NA Measured XS Area: NA Bank Angle: NA LB Buffer Width: 0-15 Regional Curve XS Area: 2.7 ft' Bed Material: Pond RB Buffer Width: 0-15 Watershed Conditions Impairments r Sediment W Nutrients r Riparian Buffer W Biological Ir Hydrological Function rv— Stability IO Instream Habitat W Terrestrial Habitat Conservation Areas: No Notes: Rare Species: No Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginia pusillum var. virginianum ) historically mapped 1.0 mile away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors Livestock h Stormwater V CAFO P Maintained Vegetation Tiles/Ditches Row Crops W Impervious Surfaces rvl Invasive Species Channelization t% Impoundment I— Debris/Trash r% -O' Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: High Hydrologic: I Low FEMA Floodplain: I No Sediment: Moderate Geomorphic: Low Utilities: Yes Stormwater: Moderate Phys i ochemi ca 1 71 Low Crossings: Yes Habitat: I Low Wetlands: No Design Notes: Reach YB2-A correlates to the existing online impoundment located just north of Lee Youngblood Loop within a cattle pasture. The upstream limits of the pond is approximately 3 acres in size and was constructed between 1983 and 1993. The pond outlet is a riser/barrel system that discharges atthe culvert under Lee Youngblood Loop. Restoration activities will include draining the pond, removing the associated dam, and daylightingthe piped portion of the reach. Construction activities will be suspended after breaching to allow for the pond bed to dry out and stabilize, also allowing for a channel to cut naturally through the bed. After a channel has formed, in -stream structures such as log grade controls, brush toes, and log sills will be installed for stability where needed, and channel banks will be graded to ensure hydraulic capacity is appropriate. Buffer improvements will include revegetating the pond bed and areas within the easement with native species that will filter runoff from adjacent pastures, thereby reducing nutrient and sediment loads to the channel. Two agricultural BMPs will be installed at the upper end of the reach to provide nutrient/sediment control and flow attenuation from runoff received from the gas line easement and adjacent CAFO facilities. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 22 July 2016 Project Name: Poplar Creek Mitigation Type: Enhancement I Reach Length: 1,767 Reach ID: YB2-B Mitigation Ratio: 1.5 :1 Buffer Multiplier: 1.10 SMU Yield: 1,290 Reach Data Hydrology: Perennial Bank Height: 3.0 ft. Channel Class. Score: 35.5 Drainage Area: 88.4 Ac. Channel Width: 11.0 Channel Habitat Score: 60 Measured XS Area: 24.0 ft2 Bank Angle: 800 LB Buffer Width: 50-100 Regi ona I Curve XS Area: 3.9ft2 Bed Material: Sand/Gravel RB Buffer Width: 50-100 Watershed Conditions Impairments Sediment rv7 Nutrients lv Riparian Buffer r Biological Hydrological Function [✓ Stability W Instream Habitat ry-1 Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum vor. virginianum ) historically mapped 1.0 mile Rare Species: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: 30-70 1 Percent Channel Incision: 30-70 On -Site Water Quality/Habitat Stressors Livestock W/ Stormwater t1_0 CAFO r Maintained Vegetation F Tiles/Ditches W Row Crops W Impervious Surfaces tv_� Invasive Species I++ Channelization r1_0 Impoundment ry-1 Debris/Trash Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: No Sediment: Moderate Geomorphic: Low Utilities: Yes Stormwater: High Physiochemical: Moderate Crossings: Yes Habitat: Low Wetlands: No Design Notes: Reach YB2-B, a perennial channel, begins downstream of Lee Youngblood Loop and flows in a southerly direction. The channel is incised, and bank erosion is moderate to severethroughoutthe reach. The reach is steep compared to other project streams with slopes ranging from 1%to 2%. The channel substrate is composed of sand and gravel with frequent bedrock outcrops. The riparian buffer is in good condition with widths averaging over 50 feet and is a comprised of hardwoods with a few localized areas of privet. Enhancement activities will include laying back banks and benching, along with the installation of in -stream wood and rock structures to raise bed elevations and providegrade control. Buffer improvements will include plantings of native species and invasivespecies treatment. Stabilization through instream structures and banktreatments will enhance hydrologic function and reduce sediment loads to downstream channels. .s s OF tT_ f Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 23 July 2016 Project Name: Poplar Creek Mitigation Type: Buffer Enhancement Reach Length: 475 Reach ID: Y132 -C Mitigation Ratio: 5.0 :1 Buffer Multiplier: 1.12 SMU Yield: 106 Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 24 July 2016 Reach Data Hydrology: Perennial Bank Height: 2.5 ft. Channel Class. Score: 36 Dra i na ge Area: 96.8 Ac. Channel Width: 6.0 ft. Channel Habitat Score: 77 Measured XS Area: 12.5 ft2 Bank Angle: 800 LB Buffer Width: >100 Regional Curve XS Area: 4.2 ftz Bed Material: Sand/Gravel RB Buffer Width: >100 Watershed Conditions Impairments Wi Sediment 1—%i Nutrients r Riparian Buffer I✓ Biological r Hydrological Function h Stability tv— Instream Habitat 1—y' Terrestrial Habitat Conservation Areas: No Notes: Notes: Kidney Sedge (Carex reniformis) historically mapped 1.5 miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile Rare Spec ies: No away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors r Livestock rv— Stormwater r CAFO r Maintained Vegetation r Tiles/Ditches r Row Crops F Impervious Surfaces Invasive Species Channelization r%_0 Impoundment r Debris/Trash r Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: Yes Sediment: Moderate Geomorphic: Moderate Utilities: Yes Stormwater: Low Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: Yes Design Notes: Reach Y132 -C, a sand/gravel bed channel, flows to the south beginning at a gas line easement and ending at the confluence with Poplar Creek. The reach is stable throughout having low banks and frequent access to the floodplain. The channel flows through the Poplar Creek floodplain, and the buffer is in good condition with widths averaging over 100 feet. Enhancement activities will include buffer plantings of native species and invasive species treatment. The improvement and protection of the riparian areas will also maintain wildlife corridors throughout the project area. a l �3F a. . o 146Y• Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 24 July 2016 Project Name: Poplar Creek Mitigation Type: Enhancement II Reach Length: 1,266 Reach ID: YB3 Mitigation Ratio: 2.5 : 1 Buffer Multiplier: 1.12 SMU Yield: 567 Reach Data Hydrology: Intermittent Bank Height: 0.5 ft. Channel Class. Score: 22.5 Drainage Area: 10.5 Ac. Channel Width: 3.0 ft. Channel Habitat Score: 64 Measured XS Area: 2.5 ft2 Bank Angle: 450 LB Buffer Width: >100 Regional Curve XS Area: 1.0 ftz Bed Material: Sand RB Buffer Width: >100 Watershed Conditions Impairments W Sediment W Nutrients I++ Riparian Buffer WO Biological F_ Hydrological Function r Stability ry-, Instream Habitat P' Terrestrial Habitat Conservation Areas: Notes: Rare Species: Notes: Kidney Sedge (Carexreniformis) historically mapped 1.S miles away (NHP 1949), Virginia Least Trillium (Virginiapusillum var. virginianum) historically mapped 1.0 mile away (NHP 1992) Water Supply: Yes LWP Area: No RWP Area: Yes Reach Conditions Percent Active Bank Erosion: <30 1 Percent Channel Incision: <30 On -Site Water Quality/Habitat Stressors I++ Livestock r% -o Stormwater F CAFO r Maintained Vegetation F_ Tiles/Ditches t;� Row Crops i- Impervious Surfaces W Invasive Species W Channelization F_ Impoundment r Debris/Trash Aquatic Passage Land Use Impacts Functional Condition Constraints Nutrient: Moderate Hydrologic: Moderate FEMA Floodplain: No Sediment: Moderate Geomorphic: Moderate Utilities: Yes Stormwater: Moderate Physiochemical: Moderate Crossings: No Habitat: Moderate Wetlands: No Design Notes: Reach YB3, an intermittent channel, flows south downstream of Lee Youngblood Loop and is fed by two seeps. The channel bed is comprised primarily of sand, and is relatively stable throughout having low banks and easy access to the adjacent floodplain. The downstream portion of the reach is slightly incised and exhibits minor bank erosion. Also, sediment deposition is present throughout this section. The riparian buffer is in good condition and is a mix of hardwoods and disturbed understory with wi dths avera gi ng over 100 feet a I ong the enti re rea ch. Enhancement/stabilization activities will include minor bank grading, adding a few in -stream structures to increase bedform diversity, livestock exclusion, and invasive species treatment. Stabilization through minor bank grading and livestock exclusion will enhance hydrologic function and reduce sediment loads to downstream channels. o' Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 25 July 2016 4.1.3 Monitoring Stream stability and vegetation survival will be monitored across both the restoration and enhancement areas of the site to determine the success of the stream and buffer mitigation. Stream stability will be monitored with cross section surveys and visual assessment stream walks. Vegetation survival rates will be monitored using vegetation plots over approximately two percent of the planted area. 4.1.3.1 As -Built Survey An as -built survey will be conducted immediately following construction to document channel planform, profile, and dimension. The survey will include a complete profile of thalweg, water surface, bankfull, and top of bank to compare with future geomorphic data. Longitudinal profiles will not be required in annual monitoring reports unless requested by DMS or USACE. 4.1.3.2 Visual Monitoring Visual monitoring of all mitigation areas will be conducted a minimum of twice per monitoring year by qualified individuals. A Current Conditions Plan View (CCPV) and associated tables will be submitted every monitoring year in the annual monitoring report. The Current Condition Plan View (CCPV) provides the spatial distributions and qualitative performance ratings for certain monitoring features. Visual assessments will include vegetation density, vigor, invasive species, and easement encroachments. Visual assessments of stream stability will include a complete stream walk and structure inspection. Digital images will be recorded at fixed representative locations during each monitoring event, as well as at any noted problem areas or areas of concern. Results of visual monitoring will be presented in a plan view exhibit with a brief description of problem areas and digital images. Photographs will be used to subjectively evaluate channel aggradation or degradation, bank erosion, success of riparian vegetation and effectiveness of erosion control measures. Longitudinal photos should indicate the absence of developing bars within the channel or an excessive increase in channel depth. Lateral photos should not indicate excessive erosion or continuing degradation of the banks over time. A series of photos over time should indicate successional maturation of riparian vegetation. 4.1.3.3 Cross Sections Permanent cross sections will be installed at a minimum of one per 20 bankfull widths with half in pools and half in riffles on all reaches that include restoration or significant channel stabilization. If present, constructed flood plain channels will be included in cross section surveys. All cross section measurements will include bank height ratio and entrenchment ratio. There should be minimal changes in the annual monitoring cross sections from the as -built cross-sections. If changes do take place, they will be evaluated to determine if they represent a movement toward a less stable condition (for example down -cutting or erosion), or are minor changes that represent an increase in stability (for example settling, vegetative changes, deposition along the banks, or decrease in width/depth ratio). Channel stability should be demonstrated through a minimum of two bankfull events documented in the seven- year monitoring period. Cross section surveys will occur in monitoring Years 1, 2, 3, 5, and 7. 4.1.3.4 Vegetative Success Criteria Specific and measurable success criteria for plant density within the riparian buffers on the Site will follow DMS Guidance dated February 2014. The following data will be recorded for all trees/shrubs in Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 26 July 2016 the plots: species, height, and planting date (or volunteer). Vegetation monitoring will occur in Years 1, 2, 3, 5, and 7. The interim measures of vegetative success for the Site will be the presence of at least 320 three-year or older trees/shrubs per acre at the end of Year 3, and 260 five-year or older trees/shrubs per acre at the end of Year 5. The final vegetative success criteria will be the survival of 210 seven-year-old or older trees/shrubs per acre at the end of Year 7 of the monitoring period. Invasive and noxious species will be monitored and controlled so that none become dominant or alter the desired community structure of the Site. If necessary, RES will develop a species-specific control plan. 4.1.3.5 Adaptive Management The Mitigation Plan will include a detailed adaptive management plan that will address how potential problems are resolved. In the event that the site, or a specific component of the site, fails to achieve the defined success criteria, RES will develop necessary adaptive management plans and/or implement appropriate remedial actions for the site in coordination with DMS and the review agencies. Remedial actions will be designed to achieve the success criteria specified previously, and will include identification of the causes of failure, remedial design approach, work schedule, and monitoring criteria that will take into account physical and climatic conditions. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 27 July 2016 5 BANK ESTABLISHMENT AND OPERATION 5.1 Establishment and Operation of the Bank This Bank Parcel shall be established under the terms and conditions of the Neu -Con Umbrella Mitigation Bank made and entered into by and among EBX-Neuse I, LLC, and the U.S. Army Corps of Engineers and the U.S. Environmental Protection Agency, the U.S. Fish and Wildlife Service, the National Marine Fisheries Services, the North Carolina Department of the Environment and Natural Resources, the North Carolina Division of Water Resources, and the North Carolina Wildlife Resources Commission, collectively, the Mitigation Banking Review Team. 5.2 Proposed Credit Release Schedule All credit releases will be based on the total credit generated as reported by the as -built survey of the Mitigation Site. The pre -construction credit release (15 percent) will be based on the credit total in the Final Mitigation Plan. The second credit release will be based on the As -Built survey, and will adjust the total released credits based on the actual constructed channel lengths. Under no circumstances shall any mitigation project be debited until the necessary DA authorization has been received for its construction or the District Engineer (DE) has otherwise provided written approval for the project in the case where no DA authorization is required for construction of the mitigation project. The DE, in consultation with the Interagency Review Team (IRT), will determine if performance standards have been satisfied sufficiently to meet the requirements of the release schedule below. In cases where some performance standards have not been met, credits may still be released depending on the specifics of the case. At the direction of the DE, in consultation with the IRT, monitoring may be required to be extended, depending on the extent to which the site fails to meet the specified performance standard. The release of project credits will be subject to the criteria described in Table 4. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 28 July 2016 Table 4. Credit Release Schedule Release Credit Release Activity Interim Total Released Milestone Release Site Establishment (includes all required criteria 15% 15% 1 stated above) Baseline Monitoring Report and As -built Survey 15% 30% 2 First year monitoring report demonstrates 10%40% 3 performance standards are being met. Second year monitoring report demonstrates 10/° ° 50% 4 performance standards are being met. (60%**) Third year monitoring report demonstrates 10% 60% 5 performance standards are being met. (70%**) 6 Fourth year monitoring report demonstrates ° 5 /° 65% performance standards are being met. (80%**) Fifth year monitoring report demonstrates ° 10 /° 75% 7 performance standards are being met. ° * (85 /o ) 8 Sixth year monitoring report demonstrates ° 5 /° 80% performance standards are being met. (90%**) Seventh year monitoring report demonstrates 90% 9 performance standards are being met, and project 10% has received close-out approval. (100%**) * *10% reserve of credits to be held back until the bankfull event performance standard has been met. 5.2.1 Initial Allocation of Released Credits The initial allocation of released credits, as specified in the mitigation plan can be released by the IRT with written approval of the DE upon satisfactory completion of the following activities: 1. Approval of instrument modification by the DE, in consultation with the IRT; 2. Approval of a final Mitigation Plan; 3. Confirmation that the Bank site has been secured; 4. Delivery of executed financial assurances as specified in the Mitigation Plan; 5. Delivery of a copy of the recorded long-term protection mechanism as described in the Mitigation Plan, as well as a title opinion covering the property acceptable to the DE; and 6. Issuance of any DA permits necessary for construction of the Bank site (if necessary). Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 29 July 2016 5.2.2 Subsequent Credit Releases The second credit release will occur after the completion of implementation of the Mitigation Plan and submittal of the Baseline Monitoring Report and As -built Survey. All subsequent credit releases must be approved by the DE, in consultation with the IRT, based on a determination that required performance standards have been achieved. As projects approach milestones associated with credit release, the Sponsor will submit a request for credit release to the DE along with documentation substantiating achievement of criteria required for release to occur. This documentation will be included with the annual monitoring report. 5.3 Financial Assurances The Sponsor shall provide financial assurances in the form of a Performance Bond to the IRT sufficient to assure completion of all mitigation work, required reporting and monitoring, and any remedial work required. Financial assurances shall be payable at the direction of the USACE to his designee or to a standby trust. Financial assurances structured to provide funds to the USACE in the event of default by the Bank Sponsor are not acceptable. A financial assurance must be in the form that ensures that the USACE receives notification at least 120 days in advance of any termination or revocation. 5.4 Proposed Ownership and Long -Term Management EBX-Neuse I, LLC, acting as the Bank Sponsor, will establish a Conservation Easement, and will monitor the Site for a minimum of seven years. The Mitigation Plan will provide detailed information regarding bank operation, including long term management and annual monitoring activities, for review and approval by the Interagency Review Team (IRT). Upon approval of the Sites by the IRT, the site will be transferred to a long-term land steward (to be determined in the Mitigation Plan). The long-term steward shall be responsible for periodic inspection of the site to ensure that restrictions required in the Conservation Easement or the deed restriction document(s) are upheld. Endowment funds required to uphold easement and deed restrictions shall be negotiated prior to site transfer to the responsible party. The Bank Sponsor will ensure that the Conservation Easement will allow for the implementation of an initial monitoring phase, which will be developed during the design phase and conducted by the Bank Sponsor. The Conservation Easement will allow for yearly monitoring and, if necessary, maintenance of the Site during the initial monitoring phase. These activities will be conducted in accordance with the terms and conditions of the Neu -Con Wetland and Stream Umbrella Mitigation Bank made and entered into by EBX-Neuse I, LLC, USACE, and NCDWQ. 5.5 Assurance of Water Rights Sufficient water rights exist to support the long-term sustainability of the site, as there are no "severed" rights on the property. Poplar Creek Site INSTRUMENT MODIFICATION Neu -Con Umbrella Bank 30 July 2016 #Ir Uzzle Site t1 Poplar Creek Site �j Meadow Spring I Site �PI dim a h� 4 Al eld r 4,1,b Legend ' _ © Airport •` Polecat Site a ,r • Proposed RES Sites 5 Mile Aviation Zone Easement. TLW 03020201100040 I „Basemap'Souce', r^' ESRI World Street Map Baselayer Natural Heritage Areas eru+� Natural Heritage Area Shapefile Source: ' 0J u NC Department of Environment and Natural Resources Figure 1. DIVIS Watershed Projects Map Poplar Creek Mitigation SiteJohnston County0 1 2 4 res1 in. = 2 mile 0 N , "I 324 Ac. „_+ )) 149 Ac..,,l NJ mlb !, yy jpy�,y Legend --f� ,,:�,�". _ �� -• �`�� '� -; Proposed Poplar Creek Site Easement (]Ac..) Poplar Creek Drainage Area (631 Ac.) may *t Source:, Wilsons Mills Quadrangle X21 Figure 2. USGS Map Poplar Creek Mitigation Site 0 1,000 2,000 4,000 Feet 1 in. = 2,000 ft. 1965 s 1971 d -' r �1✓y �T ��` i AM La(v I ! r, a��7a�ooa G3c9 • • • 17 ��� # \' •, •• 0 O i Source: Johnston Co. Historical Photography 'Source: Johnston Co. Historical Photography 1988 2006 ,t �r ! k LIQl& o i � • • vAt 4 Legend Figure 3. Historical Aerial Photography Poplar Creek Poplar Creek Mitigation Site Proposed Easement 0 1,000 2,000 4,000 re - Parcels Feet 1 in. = 2,000 ft. +ate`0 500 1,000 2,000 res NnB AmB W W NnD NoA CoB Iv CoB Ly Ra NoA GM�MaB AmB NnB Ra `a B NoB NnD NoA Ly AmB MaB NnE NnD Le F NoA. 9' MaA NoBCL NOB VrA , NnB NnE Cob Ra GoA MaA Ra NoB WaB W McB NoB C ' Noq ► W� Bb NoA NnE` / CoB lJd� NnD GoA NoB NoA GoA Ly Wag y GoA GoA NnD NoB 0 •0' 1 NnD •, NoA Wag AaA Ra NoA 0�/ Source:,Jo-� hnston;Count-- y:SoilfSurvey IVUb I\JB AaA Altavista fine sandy loam, 0 to 2 percent slopes, occasionally flooded NnD Nason silt loam, 8 to 15 percent slopes AsA Augusta sandy loam, 0 to 2 percent slopes, occasionally flooded NnE Nason silt loam, 15 to 25 percent slopes AuA Autryville sand, 0 to 2 percent slopes NoA Norfolk loamy sand, 0 to 2 percent slopes Bb Bibb sandy loam, 0 to 2 percent slopes, frequently flooded NoB Norfolk loamy sand, 2 to 6 percent slopes BnA Blanton sand, 0 to 3 percent slopes Ra Rains sandy loam, 0 to 2 percent slopes CeB Cecil loam, 2 to 6 percent slopes Ro Roanoke loam, 0 to 2 percent slopes, occasionally flooded Ch Chewacla loam, 0 to 2 percent slopes, frequently flooded To Tomotley sandy loam, 0 to 2 percent slopes, rarely flooded CoB Cowarts loamy sand, 2 to 6 percent slopes UcB Uchee loamy coarse sand, 2 to 6 percent slopes GeB Gilead sandy loam, 2 to 8 percent slopes VrA Varina loamy sand, 0 to 2 percent slopes GoA Goldsboro sandy loam, 0 to 2 percent slopes W Water Ly Lynchburg sandy loam, 0 to 2 percent slopes WaB Wagram loamy sand, 0 to 6 percent slopes McB Marlboro-Cecil complex, 2 to 8 percent slopes Wt Wehadkee loam, 0 to 2 percent slopes, frequently flooded Legend Figure 5. Poplar Creek Proposed Easement Soils Map Poplar Creek Mitigation Site r^s 0 Hydric SoilsFeet 500 1,000 2,000 1 in = 1,000 ft. Figure 6. NWI Wetlands• Poplar Creek Mitigation Site res+ate` 0 00 000 000 rr,�m Feet ol 30 ft. Crossing � e • 0 l �x LL 66 YO 04, '41 a, ir► , �r � "�+ 3 4i'�COlr .• • • • .•- 1 •:.11 1 •••11140 -k r -. � r1-4. . Ir qq ares Dr INI )0 N �1 J-6 F6 F4 F5 Legend Proposed Poplar Creek Easement Percent Incision <30% � 30-70 Percent Bank Erosion - <30% -j 30-70 - >70 .a�:C_•.m�.ri �:rA ♦�a,.►r I' W, Reach F1 F2 F4 F5 F6 F7 F8 YB1 - C Y131 -D YB1 - E YB2 -A YB2 - B YB2 - C YB3 ®l�)}1111 � •������ • Hydrology Percent Incision Percent Bank Erosion Intermittent <30 30-70 Intermittent <30 <30 Intermittent 30-70 30-70 Intermittent <30 <30 Impounded <30 <30 Perennial 30-70 30-70 Perennial <30 <30 Intermittent 30-70 >70 Intermittent <30 30-70 Intermittent <30 <30 Impounded <30 <30 Perennial 30-70 30-70 Perennial <30 <30 Intermittent <30 <30 Figure 9. Channel Conditions Map Poplar Creek Mitigation Site 0 500 1,000 2,000 Feet 1 in. = 1,000 ft. Mitigation Approach linear Feet Enhancement 455 Buffer Enhancement 809 Enhancement 1,636 Buffer Enhancement 732 Restoration 1,086 Restoration 1,274 Buffer Enhancement 636 Restoration 738 Enhancement II 672 Buffer Enhancement 807 Restoration 1,072 Enhancement 1,766 Buffer Enhancement 475 Enhancement 11 1,266