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HomeMy WebLinkAbout20080868 Ver 2_Sage Gut Mitigation Plans_20080820AUG ` 0 2008 DENR - VgATER. 4UAUTY WETLANDS AND STORWA'ATER BWCH • Sage Gut Swamp Mitigation Site Beaufort County, North Carolina Pamlico River Basin: 8-digit HUC 03020104 Prepared" for: • PCs Phosphate AURORA PCS Phosphate - Aurora 1530 NC Highway 27806 Aurora, NC 27806 On behalf of ALBEMARLE RESTORATIONS, LLC", 404 Court Street Gatesville, NC 27938 Contact information: Ed Temple, Principal Albemarle Restorations, LLC. Office: 800-509-0190 Fax: 252-357-0300 JULY 2008 • VOW ??"°?f,?r?r`"'. ???'?h,, ? D4?'"?,1?'?t ????` ?. ? ? ? ?? Syra?rlw.'!?a v:i. t r ? N at i; Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • • • Table of Contents 1.0 Introduction and Site Location ......................................................................................................1 2.0 Project Goals and Objectives .........................................................................................................1 3.0 General Watershed Description .....................................................................................................2 4.0 Existing Site Conditions .................................................................................................................3 4.1 Soils .........................................................................................................................3 4.2 Hydrology ................................................................................................................5 4.3 Topography and Adjoining Land Uses ....................................................................6 4.4 Threatened/Endangered Species and Existing Vegetation .......................................6 4.5 Jurisdictional Wetlands ............................................................................................7 4.6 Historic Preservation ................................................................................................7 5.0 Restoration Plan ....................................... 7 5.1 . ...................................................................................... Hydrologic Modifications ........................................................................................8 5.2 Soil Restoration .......................................................................................... ..............9 5.3 Plant Community Restoration .................................................................... ..............9 5.4 Plant Material ............................................................................................. ..............9 5.4.1 Planting Specifications ........................................................................... ..............9 5.4.2 Storage and Delivery .............................................................................. ............10 5.4.3 Products .................................................................................................. ............10 5.4.4 Planting Procedures ................................................................................ ............10 5.4.5 Maintenance and Guarantee ................................................................... ............11 5.5 Seeding ....................................................................................................... ............11 5.5.1 Final Grading .......................................................................................... ............ 11 5.5.2 Soil Amendment ..................................................................................... ............11 5.5.3 Seedbed Preparation ............................................................................... ............ 11 5.5.4 Seed Specification .................................................................................. ............12 5.5.5 Methods of Seeding ................................................................................ ............12 6.0 Monitoring and Success Criteria ...................................................................................................12 6.1 Swamp Run Monitoring ........................................................................................13 6.2 Wetland Monitoring ..............................................................................................13 6.3 Reference Stream Reach/Riparian Headwater System ........................ 14 6.4 Reference Forest Wetland ......................................................... 15 7.0 Adaptive Management Strategies .........................................................................15 7.1 Adaptive Management ............................................................................ 15 7.2 Long Term Management ......................................................................... 16 8.0 Final Dispensation of Site ................................................................................. 16 9.0 References .................................................................................................. 10.0 Supporting Documents Exhibit A - Vicinity Map Exhibit B - Project Area in Relation to Sub basin Exhibit C - USGS and Project Area in Relation to Existing Features Exhibit D - Soils Map Exhibit E - Historic Aerials Exhibit F - Fishery Nursery Map Exhibit G - Site Photographs Exhibit H - Soils Report and Map Exhibit I - Hydric Soils Exhibit J - Mapped Alluvial Soils Exhibit K - Man-Made Drainage Features Exhibit L - Historic Preservation Letter Exhibit M - Swamp Run Reach in Relation to Drainage Area 11.0 Restoration Plan Sheets ALBEMARLE RESTORATIONS, LLC. ................................17 Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 Sage Gut Wetland and Stream Mitigation 1.0 Introduction and Site Location Albemarle Restorations, LLC (AR), in partnership with PCS Phosphate Company, Inc. (PCS) has selected the property owned by Thad E. Tankard Jr. Holding, LLC, c/o Thad E. Tankard Jr. for the restoration of up to 5,401 linear feet of swamp run, 71.1 acres of riparian wetland, 40.2 acres of non-riparian wetland, 8.0 acres of riparian buffer, and the preservation of 856 linear feet of stream and 2.02 acres of wetland. The Tankard property is located on State Road 1717 (Hoff Road) near Winsteadville, Beaufort County, North Carolina. Exhibit A is a vicinity map showing the site location. An option agreement has been executed between AR and the current owner of the site for the purchase and ultimate conservation easement recordation of the project area by Albemarle Restorations, LLC. This option agreement has been recorded in the Land Records of Beaufort County, North Carolina in Deed Book 1615, Pages 533-536. The mitigation project is proposed to be part of the overall compensatory mitigation for the PCS Mine Continuation Environmental Impact Statement, dated May 2008. The Tankard Property is located within the Pungo River sub-watershed (USGS Catalog Unit 03020104110020). Exhibit B shows the proposed 132 acre project's location within • the watershed. The current USGS topographic map, Exhibit C, and the Beaufort County Soil Survey, Exhibit D, show the proposed stream restoration sites as headwater streams to Sage Gut, a tributary to Jack Creek, which flows to Pungo Creek. The site has been chosen in part because it is located in close proximity to the Pamlico/Pungo River estuary, it is suitable for swamp run (headwater riparian system), riparian buffer, and riparian and non-riparian wetland restoration, and the ability exists to preserve existing natural stream corridors adjacent to proposed restoration areas to create a large contiguous restored system. The project is located in the Pamlico Hydrologic Unit 03020104 and more specifically within the Pungo Creek watershed. Historical aerial photographs (Exhibits E-1, E-2 & E-3) reveal the site was previously drained by an extensive network of wooded swamp runs. Additionally, the site was selected because of the presence of hydric soils, and the extensive drainage system designed to provide surface and subsurface drainage of highly degraded headwater streams and wetlands. Previous site visits also revealed high water marks from frequent overbank flooding and widespread wet soil conditions. 2.0 Project Goals and Objectives The baseline goals of the proposed project are to create naturally functioning headwater systems with braided diffuse flow patterns across a narrow floodplain of riparian wooded wetlands and buffers, surrounded by forested wetland flats, similar to unaltered coastal plain headwater stream systems. The relatively low valley slope is indicative of historical • riparian wetlands adjacent to the swamp runs. The headwater riparian system to be ALBEMARLE RESTORATIONS, LLC. Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • utilized as swamp run restoration will be restored in the bases of the shallow drainage valleys found on site. Adjacent to the headwater riparian systems, riparian and non- riparian wetlands will be restored by minimal grading to remove field crowns, manmade drainage patterns, and restore wetland hydrology. Additional goals are to provide water quality improvement through sediment, toxicant, and nutrient retention and reduction, organic matter production and export, groundwater recharge, production and export of food sources, enhancement of wildlife habitat, some degree of floodflow attenuation, and recreational opportunities. The conversion of the land in the restoration project area from active agricultural crop fields to a diverse forested stream and wetland complex will virtually eliminate any sediment, nutrient and toxicant loading from the project site because of the removal of sediment and nutrient sources associated with agricultural uses. In addition, shading provided by forest cover will reduce algae growth, and associated low dissolved oxygen levels in surface water moving through the site. By grading the site to create a continuous headwater swamp run/riparian wetland complex and planting the entire area with woody vegetation and a native wetland seed mix, the project will slow overland runoff flow rates and provide storage and desynchronization of overland flow before it reaches Sage Gut, a tributary to the Pungo River running through the south-central portion of the property. The plant species chosen for the project will be native to the area, and an emphasis will • be placed on planting species that will provide a viable, yearlong food source for a wide range of animal and plant species. Surrounding areas are home to wild turkey, whitetail deer, raccoon, squirrel, fox, migrating waterfowl, and a wide variety of amphibian and reptile species, and the project is intended provide food and habitat to complement and enhance the existing ecosystem. The project will add acreage to the Pungo River wetland network, and nutrient attenuation and uptake by dense vegetation interspersed with shallow diffuse flows will help reduce the amount of nutrient contamination in receiving waters, thus improving downstream habitat. Improving water quality will enhance fishing, hunting, bird watching, and other forms of passive recreational use on the site as well as in adjacent areas. Earthwork is proposed to occur in 2009, with tree planting in early 2010. 3.0 General Watershed Description The project is located in the Pungo River sub-basin 03-03-07 and more specifically within the Pungo Creek watershed, which is listed as impaired in the aquatic life category according to the "2004 Tar-Pamlico River Basinwide Water Quality Plan." The same literature also notes excessive chlorophyll-a and low pH in Pungo Creek, and recommends efforts "to reduce nutrient loading into Pungo Creek that may be causing algal blooms that result in exceedances of the chlorophyll-a standard." The following information was extrapolated from the Tar-PamlicoRiver Basinwide Water Quality Plan, 2004. Lower Pungo Creek is also a Special Secondary Nursery Area (SSNA) designated • by the North Carolina Division of Marine Fisheries (Exhibit F). Forest/wetlands constitute 55.5% of the land area in Sub-basin 03-03-07, while 25.5% is agricultural, and PCS Compensatory Mitigation Plan 2 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • 17.5% is surface water. In 2000, the population in this 1,192 square mile sub-basin was estimated at 44,232 people. 4.0 Existing Site Conditions The project site is currently in agricultural row crop production. The use of the site as agricultural crop fields has the potential to cause excessive nutrient and sediment loading on the adjacent tributaries and downstream water resources, which is a source of degradation to the receiving waters. Exhibit G is a series of photos taken during a site visit, showing the site and ditches created to drain the former wetland areas for agriculture. Extensive ditching and drainage manipulation has been performed in the past to drain the site sufficiently to allow agricultural uses. Historical aerial photographs, provided as Exhibits E-1, E-2 and E-3, showing site conditions in 1964, 1979 and 1998, as well as topography shown on the design sheets, clearly show a discernible valley and dendritic system of contributing forested swamp run tributaries draining the site. The current site photos in Exhibit G show typical existing conditions within the proposed project area, including the channelized mainstem of Sage Gut on-site and several of the ditched tributaries proposed for restoration. It should be noted that although the ditched tributaries shown in Photos 2 and 3 of Exhibit G do not exhibit flow, these photos were taken in fall 2007 during an extended drought period, and these ditches clearly show evidence of frequent flow under normal conditions, including alluvial deposition and • pronounced ordinary high water mark indicators. Virtually no native vegetation exists within the proposed project areas on the site, which is seasonally dominated by planted cotton. Any native vegetation present is incidental and on a scale that is not measurable for the purposes of this report. Prior to 1979, the site was forested according to the current landowner. 4.1 Soils Soils in the proposed restoration area examined in winter of 2007 exhibited strong hydric indicators, including deep gray color, and saturated soil conditions have been widespread on the site during past site visits. The majority of the site soils are mapped in the United States Department of Agriculture, Natural Resource Conservation Service (MRCS) publication Soil Survey of Beaufort County, North Carolina (September, 1995) with the Tomotley Series and Roanoke Series, with the Altavista (non-hydric), Cape Fear, Muckalee, and Portsmouth Series also mapped within smaller portions of the project site (Exhibit E). With the exception of the Altavista series, these mapped soils are all listed as hydric on the North Carolina Hydric Soils List. The following soils information is derived from the Soil Survey of Beaufort County, North Carolina: Altavista fine sandy loam is a moderately well drained soil and is formed from • loamy marine and fluvial sediments that occur on stream and marine terraces. Areas with this soil are usually long and narrow and range from 4 to 20 acres. PCS Compensatory Mitigation Plan 3 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • This soil is sandy in nature and slopes range from 0-2 percent. Permeability and available water capacity are moderate. The seasonal high water table during the winter and early spring is apparent at a depth of 1.5 to 2.5 feet. Inclusions consist of the well drained Conetoe and State soils and the somewhat poorly drained Augusta soils which consist of about 15% of mapped areas. Forested areas for this soil support mixed hardwoods including loblolly pine, sweet gum, white oak, dogwood, American holly, and red maple. Additionally, the Altavista Series is known to normally contain streams according to the information paper provided by the US Army Corps of Engineers, Wilmington District, Regulatory Division and the North Carolina Department of Environment and Natural Resources, Division of Water Quality, entitled Information Regarding Stream Restoration in the Outer Coastal Plain of North Carolina Version 2 (April 4, 2007). The +/- 0.81 acre area of Altavista soil which occurs within the easement boundary is not included in any of the restoration acreage totals. The Cape Fear fine sandy loam is a very poorly drained soil found in shallow depressions on low marine terraces with a slope that ranges from 0 to 2 percent. The areas where this soil occurs usually range from 120 to more than 200 acres in size and are irregular in shape. It has a slow permeability and a moderate or high water capacity with a seasonably high water table during the winter and early spring within a depth of 1.5 feet. This soil supports forested areas of mixed • hardwoods and pine species such as water tupelo, willow oak, bald cypress, loblolly pine, southern bayberry, and inkberry. Wetness and slow permeability are the limitations for the Cape fear fine sandy loam. The Muckalee Series is frequently flooded for brief periods and is a poorly drained soil found on flood plains along small streams with a slope of 0 to 1 percent. Areas with this soil are 5 to 50 acres in size and are usually oblong in shape. Permeability and available water capacity are moderate with a seasonal high water table within 0.5 to 1.5 feet during the winter to early spring. Mixed hardwoods and pines supported by this soil include bald cypress, sweetgum, green ash, loblolly pine, ironwood, and inkberry. Flooding and wetness are the main limitations for this soil. The Muckalee Series is also known to normally contain streams according to the publication Information Regarding Stream Restoration in the Outer Coastal Plain of North Carolina Version 2. Portsmouth loam is a very poorly drained soil with a slope of 0 to 1 percent that is found on broad flats and in shallow depressions on river and stream terraces. These soils can be found in oblong areas that vary in size from 25 to 300 acres. Available water capacity is moderate while the permeability is moderate in the subsoil and rapid in the underlying material. During the winter and early spring the seasonal high water table is apparent within a depth of 1 foot. This soil supports forested areas with mixed hardwoods and pine species such as loblolly pine, water oak, sweetgum, inkberry, redbay, and sweetbay. PCS Compensatory Mitigation Plan 4 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • The Roanoke fine sandy loam is a poorly drained soil found on broad flats and shallow depressions on river and stream terraces with slopes 0 to 1 percent. Areas with this soil are irregular in shape and range from 10 to larger than 100 acres in size. The permeability for this soil is slow and the available water capacity is moderate with low areas susceptible to rare flooding. The seasonal high water table is apparent within a depth of 1 foot during the winter and early spring. The forested areas of this soil support mixed hardwoods and pine species such as yellow-poplar, sweetgum, loblolly pine, American holly, and blueberry. The main limitation of this soil is its wetness. Tomotley fine sandy loam is found in shallow depressions on stream and marine terraces and is a poorly drained soil with slopes of 0 to 1 percent. Areas with this soil are irregular in shape and range from 5 to greater than 100 acres in size. The available water capacity for this soil is high and permeability is moderate with a seasonal high water table within a depth of 1 foot. Forested areas supported by this soil contain mixed hardwoods and pine species including loblolly pine, sweetgum, willow oak, southern bayberry, and large gallberry. The main limitation for this soil type is wetness. A detailed soil investigation has been conducted for the project site by Mr. Gene Aston, a State of North Carolina Licensed Soil Scientist. The soils report letter • and associated map documenting his findings are attached as Exhibit H. This investigation revealed that soils occurring on-site were consistent with the Altavista, Tomotley, Roanoke, and Portsmouth Series, and that the entire site is underlain with hydric soils, with the exception of an approximately 0.81-acre area underlain with the non-hydric Altavista series (Exhibit I). As part of his investigation, Mr. Aston conducted a field determination of the approximate limits of alluvial soils on the project site (Exhibit J). This mapping of alluvial soils provides substantial corroboration and support of the information derived from USGS, NRCS, and aerial mapping sources regarding the historic locations and extents of streams on-site prior to the agricultural conversion. The map included in Exhibit H was prepared by Mr. Aston and provides a graphic portrayal of his findings. 4.2 Hydrology The project site contains an interconnected network of drainage ditches. Exhibit K shows the extent and direction of flow of all drainage ditches on the project site. The hydrology of the project wetlands is to be derived from high water tables, restored by eliminating the man-made drainage features, and from periodic overbank flooding of the swamp runs. The ditches within the easement which are north of Sage Gut will be filled to the proposed elevations shown on the plan sheets in order to restore the water table to its historic range. These ditches • currently flow into drainage ditches along the perimeter of the easement area. The perimeter ditches and Sage Gut proper will not be altered in order to prevent PCS Compensatory Mitigation Plan 5 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • the backing of water onto adjacent properties and to maintain the drainage of surrounding agricultural fields. The proposed design also calls for the restoration of several swamp runs with shallow banks within the site to restore natural drainage patterns to the project site. The swamp run inverts are slightly depressed, broad flat drainage courses with low gradients. The drainage ditch which flows into Sage Gut from the south will not be filled but will be graded to produce the desired swamp run morphology. The proposed grading required to restore swamp run morphology will also eliminate the man-made field crowns. 4.3 Topography and Adjoining Land Uses The topography of the project site is extremely flat, with slightly lower elevations on the western and southern sides. Elevations of the project area vary from 5.0 feet to 6.0 feet at the bottom of the ditches and in Sage Gut, to 8.0 feet at the highest points of the project area. Surrounding properties of the project site that are within the project site's drainage area are mapped as agricultural fields or timberland. 4.4 Threatened/Endangered Species • A review of Beaufort County's Threatened and Endangered Species list shows one threatened and five endangered species exist in the county. The Atlantic species of the Kemp's Ridley sea turtle (Lepidochelys kempii) is one of the endangered species which occurs in the county. Due to the project sites distance from saltwater, neither a food source nor any suitable nesting habitat exists on the property. The West Indian Manatee (Trichechus manatus) is also an endangered species which occurs in Beaufort County but could not physically inhabit the shallow waters on site due to their size. Red Wolves (Canis rufus) are another endangered species occurring within the county but due to their experimental population status, their presence cannot legally establish critical habitat. The red- cockaded woodpecker (Picoides borealis) is listed as endangered in the county. However, the mature stands of Longleaf pine which the woodpecker requires do not exist anywhere on the property. The final endangered species found in the county, Rough-leaved loosestrife (Lysimachia asperulaefolia), is only extant in one location which is south of the Pamlico River. The only threatened species found in Beaufort County is the sensitive joint-vetch (Aeschynomene virginica) which is an inter-tidal species and therefore could not occur on site. A letter will be sent to the U.S. Fish and Wildlife Service Ecological Services Office and the North Carolina Wildlife Resources Commission requesting a project review for coordination under the Endangered Species Act, the Fish and Wildlife Coordination Act, and the Migratory Bird Treaty Act and the results will be • provided. PCS Compensatory Mitigation Plan 6 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • 4.5 Jurisdictional Wetlands Aerial photographs reviewed from the Beaufort County Soil Conservation Office for the years 1964, 1979 and 1998 (Exhibits E-1, E-2 & E-3) show that the Tankard property was previously forested. According to the current property owner, the land was converted to cropland between 1978 and 1980. The extensive ditching and soil classes on site indicate that the project area was historically a swamp run and wetland complex. As with other similar projects, an application will be made to the U.S. Army Corps of Engineers (COE) and the North Carolina Division of Water Quality when the Restoration Plan has been completed and approved. Impacts to the stream/ditches are considered a conversion of wetland type from waters to vegetated wetlands. Normally this conversion and relocation of Waters is authorized under Nationwide Permit #27, Stream and Wetland Restoration Activities. AR is presently coordinating a jurisdictional determination with the US Army Corps of Engineers and the North Carolina Division of Water Quality to verify the limits and extent of jurisdictional resources on the site. Based upon the results of the jurisdictional determination, the extent of proposed restoration activities will be refined, if necessary. • 4.6 Historic Preservation On July 8, 2008 Ecotone, Inc. sent a letter (see Exhibit L) to the North Carolina Department of Cultural Resources State Historic Preservation Office concerning the subject site. The reply letter from the above agency will be made available when it is received. 5.0 Restoration Plan The proposed mitigation, as stated above, calls for the restoration of 5,401 linear feet of swamp run, 71.1 acres of riparian wetlands, 40.2 acres of non-riparian wetlands, 8.0 acres of riparian buffers, and the preservation of 856 linear feet of stream and 2.0 acres of existing forested wetlands. The Restoration Plan Sheets, provided with this report shows the conversion of existing cropland to non-tidal wetlands. Also shown is the restoration of four natural headwater/swamp run communities with diffuse flow patterns and multi- thread channels with a minimum drainage area of 25 acres (Exhibit M). The riparian wetlands will be constructed within the existing valley slope and directly adjacent to the headwater/swamp run communities and will interact hydrologically with the communities in its entirety. On the northern portion of the project site, non-riparian wetlands will be restored to function as non-riverine wet hardwood forests on broad flats consistent with the historical natural state of the property. • The headwater swamp run/riparian wetland grading will eliminate the farm drainage ditches and result in a roughened surface to create diffuse flow patterns through what will PCS Compensatory Mitigation Plan 7 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • ultimately be a wooded riparian corridor. The design criteria will be consistent with recent information provided by the US Army Corps of Engineers, Wilmington District, Regulatory Division and the North Carolina Department of Environment and Natural Resources, Division of Water Quality, entitled Information Regarding Stream Restoration in the Outer Coastal Plain of North Carolina Version 2 (April 4, 2007). Vegetation has been chosen to create diverse wetland communities including Cypress- Gum Swamps and Bottomland Hardwood Forests, and Non-Riverine Wet Hardwood Forests as described in the Classification of the Natural Communities of NC, 3rd Approximation. Sage Gut would be identified in this publication as a Coastal Plain Small Stream Swamp, blackwater subtype. In selecting vegetation, we have evaluated wetland areas adjacent to the site and Dominant Plants for Major Wetland Types published by the North Carolina Division of Water Quality. Consideration has been given to food source and wildlife habitat potential in the final plant species selection. 5.1 Hydrologic Modifications The goal of the proposed restoration plan is to create a continuous headwater swamp run/riparian wetland system typically found in the middle to upper reaches of first or zero order tributary systems by restoring to a more natural state the channelized and straightened ditches bisecting the project site. The proposed swamp runs will have a width ranging from 25 to 100 feet and an overall slope of • 0.1 percent. The flow will be through a broad series of intertwined sinuous micro-channels. The majority of the water flowing through the site under normal conditions will be concentrated in the swamp runs by leaving the elevation on average of 0.5 to 1.25 feet below the adjacent riparian wetlands. The target plant community is a varied wetland forest surrounding a cypress-dominated swamp that will provide a continuous forested and diverse greenway along the tributary. Any invasive or exotic species found on the site while earth work is being completed will be removed through physical and/or chemical means. The site will consist of four swamp run/wetland systems surround by riparian wetlands along with contiguous non-riparian wetlands located on the northern portion of the site. The main source of inflow to the site is the ditch (Sage Gut) entering from the eastern edge of the project area. The ditches on the southwest, northwest, and northeast corners of the site also contribute flow. Throughout the project area, the proposed restoration will include grading to create wide swamp run morphology with a gradient of less than 0.5 percent slope and multiple sinuous interconnected channels. Adjacent to the swamp run on both banks will be riparian wetlands at an elevation between 0.5 and 1.25 feet above the mean elevation of the swamp run. The design proposes swamp run elevations of 3.5 to 6.5 feet and riparian wetland elevations from 5.5 to 7.0 feet. Elevations for the non-riparian wetlands on the northern part of the site will range from 7.25 to 7.5 feet. Periodic flooding from the swamp run, the seasonally high water table, and • the extremely slow permeability of the soils will provide the ample hydrology for the adjacent wetlands. PCS Compensatory Mitigation Plan 8 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020 104 1 10020 Beaufort County, North Carolina - July 2008 5.2 Soil Restoration Soils found in the project area currently exhibit hydric characteristics and will remain. Any topsoil required for removal during restoration will be stockpiled and redistributed over disturbed areas. Because minimal grading is proposed, some areas will not require the stockpiling of topsoil. Because sufficient organic material appears to be present to a significant depth, no amendments are specified. Any large woody debris encountered within the project area will be placed throughout the created wetlands to add variety to soil conditions and encourage diversity of volunteer species. 5.3 Plant Community Restoration C7 The plant species chosen for the project are native to the area, with an emphasis on species that will provide habitat and a viable, yearlong food source for a wide range of animal and plant species. Surrounding areas are home to bear, whitetail deer, raccoon, squirrel, fox, migrating waterfowl, and a wide variety of amphibian and reptile species, and the project is intended to provide food and habitat to complement and enhance the existing ecosystem. Hydrophytic species shown on the planting plan were selected to create a diverse matrix of wetland communities including shrub/scrub wetlands, areas of open water, emergent, and forested wetlands. Invasive and exotic species will not be planted on the site. Any invasive or exotic species found on the site will be removed through physical or chemical means during the planting phase. In selecting vegetation, we have considered reference riparian wetland areas adjacent to the site and "Dominant Plants for Major Wetland Types" published by the North Carolina Department of Environment and Natural Resources, Division of Water Quality. Sheet P-2 contains detailed planting and seeding schedules for the site. An average of 435 stems per acre are proposed for planting in both the swamp run and wetland restoration areas. 5.4 Plant Material 5.4.1 Planting Specifications 1. Planting material will conform to the current issue of the "American Standards for Nursery Stock", published by the "American Association of Nurserymen". 2. The root system of plant material shall be well-developed and undamaged, and the plant size must conform to the size specified. Plants not meeting these criteria will be rejected. PCS Compensatory Mitigation Plan 9 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • 3. Foliage of non-dormant plants shall appear healthy, with no leaf spots, damage, discoloration, or wilting, and no evidence of insects on the plant. Plants not meeting these criteria will be rejected. 4. Planting materials may be substituted upon written approval from Albemarle Restorations, LLC. 5.4.2 Storage and Delivery 1. Seed shall be delivered in containers having labels reporting the origin, purity, and germination percentage of the seed, and the date of germination testing of the seed. 2. All bare root plants shall be clearly and correctly labeled to allow confirmation of species and quantities. At least 25% of each species in every shipment shall have legible labels securely attached prior to delivery to the site. 3. All plants delivered to the project site must have thoroughly moist soil/root masses. Dry or light-weight plants shall be rejected. 4. All rejected material shall be immediately removed from the project site. 5. All plants delivered to the project site shall be stored in a cool, shaded location, and watered regularly so that roots are kept moist until time of • planting. 5.4.3 Products 1. Planting Schedules specifying quantity, species, size, condition, and spacing can be found on Sheet P-2 of the Restoration Design Plan Sheets. 2. Straw shall be from small grain species such as wheat or barley, and shall be free of rot, mildew, and noxious weed seeds. 5.4.4 Planting Procedures 1. Planting shall be performed in accordance with the current edition of the Landscape Contractors Association "Landscape Specification Guidelines" and as specified below. 2. Plants shall be randomly installed within the planting area, using the plant spacing specified in the plant schedule as a guide. 3. Planting will occur during the period of January 1 - April 15. Planting outside of these specified dates is not permissible without approval from Albemarle Restorations, LLC. 4. Planting shall not occur during periods of sub-freezing temperatures, when the ground is frozen or excessively wet or dry, or when other • conditions not generally accepted as suitable for planting persist. 5. Seedlings shall be planted within two days of shipment. PCS Compensatory Mitigation Plan 10 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • 6. Seedlings and whips shall be minimum 1/4" to 1/2" caliper. 7. Seedlings and whips shall be planted in accordance with the detail provided on Sheet P-2 of the Restoration Design Plan Sheets unless otherwise approved by Albemarle Restorations, LLC. 8. All woody material must be planted erect. Plants leaning greater than 10 degrees from perpendicular must be straightened or replanted by the Contractor. 5.4.5 Maintenance and Guarantee • 1. Plant material shall be maintained by the Contractor for one full year from the date of final inspection and acceptance by Albemarle Restorations, LLC. 2. The Contractor shall guarantee an 80% survival of all plants for the one year period stated above, except in the case of damage by fire, animal damage, vandalism, or other events beyond the Contractors ability to control. 3. Plants which are 25% dead or more shall be considered dead. 4. Replacement plants shall be of the same type, size, and variety as the plants specified herein, or substitutions approved by Albemarle Restorations, LLC. Replacement plants shall be provided and installed subject to the requirements of these plans and specifications. 5.5 Seeding 5.5.1 Final Grading 1. Seeding of wetland areas is to be according to the Wetland Seed Mix detail on Sheet P-2 of the Restoration Design Plan Sheets. Seed shall be spread with a broadcast spreader and may be mixed with dry sand to facilitate even spreading. 5.5.2 Soil Amendments 1. Soil tests must be performed to determine if lime and/or fertilizer are required within seeding areas. Soil analysis may be performed by the N.C. Department of Agriculture and Consumer Services Agronomic Division or a recognized commercial laboratory. 2. Amend soil as needed based on N.C. Department of Agriculture and Consumer Services Agronomic Division recommendations. 5.5.3 Seedbed Preparation • PCS Compensatory Mitigation Plan 11 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • 1. If needed, seedbed preparation shall consist of loosening soil to a depth of 3-5" by means of suitable agricultural or construction equipment such as disc harrows or chisel plows or rippers mounted in construction equipment. After the soil is loosened it should not be rolled or dragged smooth but left in the roughened condition. Sloped areas (Exceeding 3:1) should be tracked leaving an irregular surface with ridges running parallel to the contour of the slope. 2. Apply fertilizer and lime if required. 3. If required, incorporate lime and fertilizer into the top 3-5" of soil by disking or other suitable means. 5.5.4 Seed Specification All seed shall be free of noxious weeds. All seed shall be subject to re- testing by a recognized seed laboratory. All seed shall have been tested within the 6 months immediately preceding the date of sowing such materials on this job. Seed tags shall be made available to the inspector to verify type and rate of seed used. 5.5.5 Methods of Seeding • • 1. Dry seeding: This includes use of conventional drop or broadcast spreaders. a) Seed spread dry shall be incorporated into the subsoil at the rates prescribed on the temporary or permanent seeding recommendations. b) Where practical, seed should be applied in two directions perpendicular to each other. Apply half the seeding rate in each direction. 2. Drill or cultipacker seeding: Mechanized seeders that apply and cover seed with soil. a) Cultipacking seeders are required to bury the seed in such a fashion as to provide at least 1/4 inch of soil covering. Seedbed must be firm after planting. b) Where practical, seed should be applied in two directions perpendicular to each other. Apply half the seeding rate in each direction. 6.0 Monitoring and Success Criteria Following construction, As Built Drawings will be prepared for the site and submitted. The site management plan will identify potential invasive species as defined in the "North Carolina Noxious Weed List", identify site constraints, and provide for a two-part control plan. The first part of the two-part plan will suppress the establishment of noxious plants through eradication of existing species seen on site and installation of sufficient densities of native woody and herbaceous species. The second part will be to PCS Compensatory Mitigation Plan 12 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • implement an early detection and rapid response program, to identify and remove invasive species before they become established. 6.1 Swamp Run Monitoring Monitoring of flow within the headwater swamp run system created on site will be conducted for the entire 5 year period and will not be tied to the growing season. Monitoring will consist of continuous water elevation documentation, vegetation plot monitoring, and methods to assess flow patterns and duration of inundation. Photographs and/or video footage of major flow events, to the extent possible, will be included in each year's monitoring report. Surface and sub-surface hydrology within the swamp run will be monitored using continuous recording pressure transducer type water level loggers suspended in monitoring wells within the limits of the swamp run. These wells shall be arranged longitudinally up the lowest point in the valley to capture slope and will consist of 3 wells per 1,000 feet of swamp run. Wells will be set perpendicular to the valleys in the upper, middle, and lower portions of the valleys at specific contours and will extend to the valley edge. Water table depth hydrographs in conjunction with longitudinal profile/slope will be used as supporting evidence of flow. • Flow success will be based upon 2 documented flow events at any point in a valley 3 years out of the 5 year monitoring period using normal rainfall periods. These events will be used to calibrate, correlate, and infer flow of unobserved events in well hydrographs. Linear feet of success will be determined by the most upstream successful flow point. Additional supporting evidence of success shall include photo documentation of sediment deposits, debris flows, (may GPS actual event edges) and channel feature formation. Vegetation plot sampling for the swamp runs will coincide with that of the wetland vegetation plots and continue for the duration of the 5-year monitoring period with success based upon a total of 320 trees per acre (TPA) at the end of monitoring, in order to meet DWQ buffer success criteria. 6.2 Wetland Monitoring Monitoring of the constructed wetlands shall take place during Beaufort County's 282 day growing season (February 28th-December 6`h). Monitoring of hydrology on the restoration site will be completed using semi-continuous recording water level loggers suspended in two-inch PVC monitoring wells. Due to the size and extremely flat nature of the site, well density shall be one per twenty acres. The wells will be arranged perpendicular to the valley axis and will be located to • assess subsurface water levels at various elevations on the site planned as PCS Compensatory Mitigation Plan 13 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • seasonally saturated or temporarily flooded. Data will be downloaded from each monitoring well monthly, and during each site visit hand measurements will be taken to ensure the accuracy of the water level loggers. Groundwater elevation data collected from each monitoring well will be presented relative to the ground surface elevation at the well location in graph form. In addition to measurements of sub-surface water elevations, a visual estimate of the extent of inundation will also be made and documented. Hydrological success shall be based upon the wells measuring at least a 6 percent hydroperiod within the non-riparian wetlands, and X percent within riparian wetlands, during periods of normal rainfall. Rainfall data will be collected on site through an event rainfall logger. This gauge will be placed at the edge of the project site and will record rainfall intensity, duration, time, and quantity. Collected rainfall data will be compared to normal rainfall amounts to determine the deviation from climatologically normal rainfall in the area. The normal rainfall amount for the site will be determined by using the long term (PCS Phosphate maintains a 30 year record) monthly average to develop a 3 month rolling average (weighted more heavily toward the current month). The rainfall data will be assessed to determine degree to which climatologic extremes (i.e. drought or excessive rainfall) affect project hydrology. Vegetation monitoring plots will be 10 meter by 10 meter square, and installed to • provide a representative sample of forested wetland communities. Plot density will be such that at least 2 percent of the total planted area on site is sampled. The initial plot sampling will occur following the completion of construction, with successive vegetative monitoring occurring once per year for 5 years, or until the site is deemed successful. Success density will be 260 planted trees per acre at the end of monitoring. The annual monitoring report will be submitted by February 1St each year. 6.3 Reference Stream Reach/Riparian Headwater System The reference reach analysis performed on coastal headwater systems in NC by Baker Engineering was used to develop an appropriate design approach for the riparian headwater valleys on the Sage Gut site. These streams vary in slope, watershed size, landscape location, riparian maturity, and soils, and therefore may not be directly comparable to the conditions on the newly constructed Sage Gut site. A well array will be installed on the poorly and moderately defined valley segments on the UT to Bailey Creek and UT to South Creek reference sites, due to their close proximity and similar landscape position. This well data will be used to document surface water and flow events during the monitoring period. .7 PCS Compensatory Mitigation Plan 14 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • Data collected from stream reference sites will be used as a guide to infer and compare flow events of the mitigation site. Because of differences in maturity and disturbance characteristics of the mitigation site, these data will not be used for strict success or performance parameters. 6.4 Reference Forest Wetland An approximately 34-acre mature forested portion of the Hell Swamp mitigation site, located approximately 4.5 miles northwest of the Sage Gut site, provides a reference forest for the upper portions of Sage Gut vegetation and hydrology. Two years worth of hydrology data will have been collected for this site by the time restoration monitoring is anticipated to begin, although 2007 was a severe drought year. Michael P. Schafale, biologist with the NC Natural Heritage Program, has identified this site as potentially one of the best remaining examples of the nonriverine wet hardwood forests depending on fate of other comparable sites. Although "fairly small", this forest is in "excellent condition". 7.0 Adaptive Management Strategies Principles of adaptive management have become increasingly used as a tool to elevate the • likelihood of success of wetland mitigation projects throughout the United States. Since ecosystem behavior and natural disturbances cannot always be accurately predicted nor can human mistakes always be identified in advance, adaptive management provides a somewhat formalized process for the iterative and interactive approach to assessment and management of wetland mitigation projects. However, adaptive management does not equate to perpetual maintenance. 7.1 Adaptive Management Certain expected natural hazards which might affect successful restoration are fire, flood, erosion, invasive species, and herbivory. Construction mistakes could also affect performance and function of the restored area. Strategies to minimize effects from natural hazards and human mistakes include: ¦ Any flooding from beaver activity will be noted during the monitoring period and beavers will be removed by trapper(s). ¦ Sections affected by wildfire during the monitoring period will be assessed for degree of damage and replanted at a spacing calculated to restore specified tree density. ¦ Herbivory on seedlings by rabbits, rice and cotton rats, and field mice will be reduced by the foxes, feral dogs and cats, hawks and owls resident in nearby natural areas. Reductions in rodent herbivory will be achieved by • the erection of simple perches at interior locations on the site to encourage PCS Compensatory Mitigation Plan 15 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • • raptor use. If monitoring indicates deer numbers are jeopardizing tree survival, decisions will be made, in coordination with appropriate agencies on what, if anything, can be done. ¦ Construction errors will be identified early in the mitigation process with an as-built report which contains spot elevations and topographic data. Any correction effort will be coordinated with permitting agencies such that the intended water regime is met. ¦ Planting errors in spacing density or diversity will be avoided by diligent monitoring of and coordination with planting crews to ensure fidelity to the planting plan. An accounting of tree plot and monitoring well numbers and locations will be included in the as-built. ¦ Design flaws may not be caught as early in the process, but if monitoring or observation (i.e., excessive standing water) indicates a potential design problem, remediation options will be explored with permitting agencies. ¦ Parker Farm monitoring wells were subject to frequent disturbance and occasional destruction by black bears, despite efforts to armor the wells against them. It is expected that bear problems will be most pronounced in the first year or two of monitoring when the animals are becoming accustomed to the lack of crops on the site. Barbed wire fences may be constructed around the more expensive continuous monitoring wells. ¦ Common reed management may be necessary for lower Sage Gut and this species could appear elsewhere on the site. During the regular monitoring tasks, biologists will be tasked to be observant of any invasive species that may take root. Similar to practice in Florida against the invasive Melaluuca, during well checks or vegetation plot set up and monitoring, biologists will be instructed to uproot any seedling loblolly pines. 7.2 Long Term Management Long term management will be aided by controlled-access gates on the entrance road of the property. It is anticipated that once the area begins to naturalize, that no long term management will be needed. • 8.0 Final Dispensation of Site With agency concurrence of success of the site, arrangements with a suitable non- governmental organization or government agency will be made such that a conservation easement in perpetuity is transferred to such organization or agency. Permitting agencies will be consulted during the decision and negotiation of final dispensation. PCS Compensatory Mitigation Plan 16 Hell Swamp/Scott Creek Watershed Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • 9.0 References Albemarle Restorations, LLC. Albemarle Restorations field data collection within Beaufort County, North Carolina. 2007-2008. American Association of Nurserymen. The American Standard for Nursery Stock. 1250 I Street, N.W., Suite 500, Washington, DC. 1986. Landscape Contractor's Association of Metropolitan Washington. Landscape Specification Guidelines. LCAMW. Rockville, Maryland. 1993. Lynch, Karen M. "Common Wetland Plants of North Carolina." NCDENR, Division of Parks and Recreation Department of Environment, Health and Natural Resources Division of Water Quality Water Quality Section. Raleigh, North Carolina: Report # 97-01, August 1997. North Carolina Department of Agriculture and Consumer Services Plant Industry Division-Plant Protection Section. "North Carolina Noxious Weed List." http://www.agr.state.nc.us/plantind/plant/weed/noxweed.htm. September 2005. NCDENR, Division of Coastal Management. "GIS Wetland Type Mapping for the North is Carolina Coastal Plain." GIS Data Guidance Document. http://dcm2.enr.state nc us/Wetlands/wtype>;uidanceweb Jpddf. September 2005. North Carolina Natural Heritage Program, NCDENR, Division of Parks and Recreation. "Natural Heritage Program List of the Rare Animal Species of North Carolina." 1999. North Carolina Natural Heritage Program, NCDENR, Division of Parks and Recreation. "Natural Heritage Program List of the Rare Plant Species of North Carolina." 1999. North Carolina Department of Environment and Natural Resources. "2004 Tar-Pamlico River Basinwide Water Quality Plan." http://h2o.enr.state.nc.us/basinwide/taKpam draft dec2003.html. June 2008. Schafale, Michael P. and Weakley, Alan S. "Classification of the Natural Communities of North Carolina, 3rd Approximation." North Carolina Natural Heritage Program Division of Parks and Recreation and NCDENR. 1990 United States Department of Agriculture Natural Resources Conservation Service. • "Beaufort County Soil Survey." September, 1995. 17 ALBEMARLE RESTORATIONS, LLC. Sage Gut Swamp Mitigation Site Pungo River, 03020104110020 Beaufort County, North Carolina - July 2008 • United States Fish and Wildlife Service. "Endangered Species, Threatened Species,Federal Species of Concern, and Candidate Species, Beaufort County, North Carolina." http://www.fws.gov/nces/es/cntylistibeaufort.html. June 2008. US Army Corps of Engineers, US Environmental Protection Agency, USDA Natural Resources Conservation Service, North Carolina Wildlife Resources Commission and NCDENR Division of Water Quality. Stream Mitigation Guidelines. April 2003. U. S. Army Corps of Engineers, Wilmington District Regulatory Division and North Carolina Department of the Environment and Natural Resources, Division of Water Quality. Information Regarding Stream Restoration with Emphasis on the Coastal Plain, Version 2. April 4, 2007 • • 18 ALBEMARLE RESTORATIONS, L.LC. • 10.0 Supporting Documents 0 ? 0 • ? {'nntvyu _ P ., rF?A2Y ,. ,,, 1Sar•. rte. ., , FPOJ?Cf ARC A - ftin? t(i _? H-- - - any - - °rerf III, n? - t w f N? ff y? - ??CF _. `.t:Y y'„?• Nei, f, Map from DeLorme's North Carolina Atlas 6 Gazetteer fl' Co ri ht © DeLorme, Yarmouth, Maine. ?Wiff rANWe Sirs V CIN TY MAP 5AG? GUT 5WAMP Scale: 1" = 1010007 7/ 2008 brawn ?q: CFN MILANb & 5TP? AM PVbr-G -?r FT5TOp, ON ALA v, A1'L E RE <' ? c?? s, SCALD ppOJFC1 WETLAND RES: Mimi 404 DC- .z ?TAUFR' - , '.J INA - 11 0 z QK ?O M ? X ?O 0 o CL ? ? .9s ? ? _ ? 1L1 too ' z lJ NF /M U .9 ? Z C' m G ,n ? z s m W ? mN U NN- - w L Q 10 ,- Ar,hbeli vX ?~" 3 c. `x r a . r 1 U X • • FXHOlf C TANW,,,b 511 U565 ANb TOlCT MEA iN 5A6F Gut" 5WAMF p??AT ION TO FX15TIN6 FFATNF5 Scale: I" = 2,000' 71 2008 Prawr Chu; CFN WFTI,AM & 51PTAM p?5TOPWION ProlcT SCALD 404 (52) 3W ItMr 0PT COUNTY, NOpTN CAPOI-INA • ? 0 ?_ ?L s 1 AG _ A0 Ds J '\J AG / Sb ( 'Sb AaA AIA 0S c i c At At ?4511M 5TP\?AM Ec -? At At 1 \ /! W, SYMBOL SERIES Altavista fine sandy loam Ro 0-2% slopes Cape Fear fine sandy loam >? J ru Muckalee loam Portsmouth loam \ Roanoke fine sandy loam j/ Tomotley fine sandy loam r` SJI ', CON5EI;VA110N rE.'VICE 01, 1"ANK/ n 511 (yEAllFOlrcouNrv I?/?I I V ?/ SAGS GU1? SWAM SEP1"EM6Ek '995 50L5 MAC 5CA,?? I" = 2,000'' 712008 Craws f q, CFN WETI.ANb & STP?AM FT 5TOPAION A) BE M?,i?; SCA?? pPOJ?CT ItAUFOPT COUNT`(, NOPTH CAPOLINA • • ti f rem )j 3;5 e all I P i ?"°P j.'it ..'`+-..M- •ti! F•, 'J t?4' `1 .tit r y? p t.? 1,r, .. rt ?' ?3ir. t`:. ?_, .l a. ?•-? -'..4 w vk, ! ?•'t( /. ?:`? ?P ±,?+?'? 7 is "p's ? s YA -y. r I. ?f t. f z t f ' ? P NI5TOpIC A?pIA? - 1964 7/ 2008 brawn ? CAN p? per roe fsL kiiARLE ki .` NS, LL C, (/ ? WETLAND RES'.` Nof f0 5C/AU/r! V STREAM RED'; fANKA,b 51TF 5AGF Af 5WAMF MTLANP & 5T FAM p?5TRATION PPIOJFCT ?FAUFOpT COUNTY, NOr?TH CAp01NA • • t ti < , fd ?r n•Y 1? ?'<,1 'K.r4"I t { Y- C If 'r- d y I T 7- Tw-- .44 > tlt'.T' ?xi a 7 J? j F t4+1?'t" Y f d sJ e ? .Tf e' A? . X r • ? x e d• r] UUUUU'''" 4T w ? MVIT ?-2 fAKAM 511 5A6? GUT 5WAMF NI5TOplIC A?pIAL - 1979 71 2008 Prawn ?u CFN WMANn & 5TI AM ,_;<,?; ; ; r p? STOp?ATION ppOJ?CT NOT TO 5ck ?FAUFOpT COUNTY, NOPTH CAPOAA ? 0 ? 0 0 998 r ? A r tx AMA 1 r ? , .. f• . _ f y . ?XHIC?I? ?-3 ?"ANKA?b 51? 5A6? AT 5WAMr H15TOI?IC A?PIAL - 1998 712008 brawn Nu CFN MfLAW & 5TP,?AM ° ° rOK p? 5TORN ION ALBEna ppOICT ' Of 1 0 5CA ? , o-, ' CAFOLINA • • This map was produced for Illustrabve purposes as a general guide to Fl assist the public. Informational data used for this map were collected nreao / from federal, state. county, and private orgenbm"ons. While every - effort is made to keep this ma accurate and p up-to-date, it is not . ° , intended to replace e-,y official source. Under no circumstances shall the Its State of North Carolina be liable for any actions taken or omissions made , I from reliance on any information oonlained herein from whatever source not ?^ shall the State be liable for any other consequencos from any such reliance. ? 1 r q,F? .. Quenec - Fe i _ hr ' ? i . a • ? a d I • ' mtow a Br ? ? sArdnn., + tO0k0df°` ' ' r ^ Pungo Creek 0105 2 a? -7 A f` • f a ? .. I 1. t th L - " n -\ Y Unnamed Tributary East Fork of East Fork 1. - l I .0103 4 a - 1, Al .01034a1'.8) J LNorth Creel: .0103 4 a I " ? 1 rsnya.i , Ki7by ? - island _ l little Ease Creek .0103 4 a iv L vainly North Creek .0104 3 d _ 01034agil i I - Lrying Pan Creek I r Wd"D • Survey'1:100,000-aCple parametric nape. Prinmary rlsnM. ' IYUr"Fen' Arer.c C Permanent Secondary Map Datum: NAD83 GI Spcmal secondary ?{? r?` { Map Pr*ctbn: NC Stale Plane Military Danger J ;, X ff 1Rj? 1.1' I t. • Map Date: July 2006 A??$ Zones and 1000 0 1DD0 2000 Yards Resmied Naas « 4" ^?P OS 0 0.5 1 1.5 Was IMand WAOM(wRC)mPodbeon) Map 3 Exhibit G • .7 Typical Views of Sage Gut Y?t A .. ? r Photo 2: Alluvial deposits on proposed Reach 3, facing west. October 2007 Photo 1: Side view of Sage Gut Swamp and cropland, facing west. October 2007 Exhibit G Typical Views of Sage Gut • • • RY / - r r M, `„ram _ •?,?7 ? ? tir i. ' I ?? .,?,? •1 - Ji7? y Y?'n.I A? E•'i-t, ,3•r '?+ ^I ;? 'a? -jar .,,4:-{' ,r rates ^a•- rr •. - Ye 4iic -- cr +iV6'.'•7r .`,3A "r•±7?,iSa7AYt'? Photo 3: Proposed Reach 3, facing east. October 2007 Photo 4: Channelized portion of Sage Gut, facing north. October 2007 C7 • Exhibit G Typical Views of Sage Gut Photo 5: Drainage pattern of proposed Reach 1, facing west. October 2007 Photo 6: Drainage pattern of proposed Reach 4, facing east. October 2007 EXHIBIT H Aston Soil Works, Inc. P.O. Box 86 Simpson, SIC 27879 Decemtw 12.2007 Albemarle Restorations LLC Ed Temple P.O. Box 394 Galesville, NC 27938 Re: Alluvial soil determination at Sage Gut Swamp Site in Beaufort County, NC Dear Mr. Temple, As requested the referenced property was evaluated for the presence of alluvial soils along natural drains that feed Sage Gut Swamp. The site consisted of approximately 130 acres predominately in farm land. Soils contained on this site were most like the Alta Vista, Tomotley, Roanoke, and Portsmouth series, The Altavista series consist of moderately well drained soils that forrned in loamy marine and fluvial sediments. The Tomotley series consist of poorly drained soils that formed in loamy marine and fluvial sediments. The Roanoke series consists of poorly drained soils that fonried in loamy and clayey marine and fluvial sediments. The Portsmouth series consists of very poorly drained soils that formed in loamy marine and fluvial sediments. The evaluation involved methodically conducting hand auger borings across the property to locate the approximate alluvial soil boundary. The alluvial soil r'ine was derived based on an interpolation method between soil findings at each Global Positioning System (gps) located boring. A boring log provides general soil descriptions at each boring location. The basis of alluvial soil classification was a loamy sand to sandy loam surface texture to a minimum depth of 18 inches. Soil texture was field estimated based on the United States Department of Agriculture (USDA) system of nomenclature. Borings were located by using a Trimble gps unit capable of sub-meter accuracy. All gps data was post processed using a continuously operating reference station in Washington, NC. The findings of this investigation suggest there is a correlation between natural drains and alluvial deposits. As the distance from drain convergence increased, the evidence of alluvial soils declined, which is normal for natural systems. However, the lack of alluvial sails in the headwaters of these drainages could be attributed to agricultural ditching that cut across the natural drainage paths, which have diverted runoff in opposite directions The enclosed alluvial soil map identifies the approximate boundary of alluvial soils. Also contained on this map are boring locations and the approximate distribution of Alta Vista soils. • page 2 December 12. 2007 The spatial distribution of soils with respect to series generally corresponds to that of the Beaufort County Soil Survey. Due to the scale of the Beaufort County soil survey, some error should be expected with this soil survey or any surrey at this scale. If you have any further questions, please contact me at (252) 341-9707. Sincerely, Gene Aston Licensed Soil Scientist # 1261 C,'.. (..?._. Alluvial Soil Map for Sage Cut Site 0 0 +/- 130 Acres, Hoff Road Beaufort County, NC Legend • Approximate Alluvlal Line Field Border Altavista (moderately well drained) D - Hydric Solis Note, See Report for More Detail 0 300' wm" SCALE: 1"= 300' ilsfon Soil Work-,, lrc, 2841 f Edword5 give 5i p-,on, NG 27877 0 ; • • 4 6 U 6 O r Nl'hplC 501 L5 MINT I TANWb 511 H ???s A 5A6? NYnpIC 5015 o??s GUr 5WAMP 5calc I'' = 500' I/ 2008 brawn Chu; W5 MILANb & 5-R M pT5TOPA110N SCALD WE>uNU STREAb & WIIDUEE ,. .? COURT STREET 02 >? or ?FAUFOFf COUNTY, OPTH CMOAA ?6? 6 n 6 6 n 6 i ?XNIC?11 J TMKAFb 511 WMP A Luv1A- 5O L5 ALLUVIN 50'L-5 5A6F GUf 5WAMF 5cale 1" - 500' 712008 brawn ?H: W5 MIANb & 5TTAM pUpap `O' F?5TOWION " l ?w R 6 6 6 Ra ??uvi?. sons ? io ??oW 6 U 6 BEMARLE RESTORATI0?1;, LLC ppOJ?CT SCALD WETLAND RESTORATION, STREAM RESTORATION do NiLDLJFE HABITAT OREA`11(NI?'1, Ir ?j \/ ?j /??j p 404 CGURT STREET • GATESNLLE, NC 27976 [t AUI 0P\T COUV I , NOf?TI? C/??OL VA (232) 413-0249- FAX (252) 357-48<, ? 0 • • 4 ? o . CD C? ?? 6 6 I 6 ?? ? II 6 ?? 6 -b 4 ? 6 U TL, 6 41 MINT K 0 jo -ECI MF A fANQP\p 511 MAN-MADE WA1N/W FFATUFT5 r)MNA6F 5A6F GUS" SWAMP Plr\)FCTION 5cale 1" = 500' 712008 Crawr [3 : W5 M I,AW & 5TTAM n r r??? FF5TOPMON AL, I:r 1; f 0o = ,?° .. ppOJFCT SCA ?STORATIv) %STORATIO?. e'TAT CRF i `LGr- GATESMLLE „` `'AM FAX (252) 357-4M2 7 c,ryy <;;. I?fAUFRT COUNTY; NOFTH CAPUINA Ecotone Yt EXHIBIT L urt1. Car(3liria I listoric 13rc-crt :Lti(,n Office -16 i N; ail Sen ice (,enter Italci li. N'(; 27699 Re. Request for Hrstorirvi Revic•?r Statement - Tankard Proper-o-, Beaufor, Gotmuy. N`rrh C 11uhn a Ih•ar Vii) ,3r "!Iadanl. t? t ::e rCtilt:mmi,,_ k2 tine a•,i£t et)1ltjuct all I lhkwkgl Re'rttm m 1mir N-.i:le A 1 icriti?,. ur.': ''t am rt' ziriivd E."",+r;m:I (,"-orch,k,I,)i!xal re,(mrccs ttn ihr l ;'.iLard It(Ipl'1'ti, t?lltch ;.? tUt`acc .? ):. 100d "SR nt,rihv-Cv of Wwwatiriilc- Beatlft)ti (;0unn. Xwih (.arOlina. -alt i(,, t! t;rirttr. ctntct,?rtts?C (hs.t M) (1 t*iblt: pmpedcs wdl In hirip;cted as s rcmh t)f this r;-( mi This 1-Cylcst is I)CInst made v) hard:ill} fulfill l-edcral .rt:ciuircmcn;s is,so c iat(•(? v,,idi i fic N,)ti•t 7, is 1 i j Prescrt"au(m Aci, ,,ocri(in 106 rt,v.iety (;f the subicct prOi)crtt-. Tke hrt)tcct cIU"ail. ;,:,tor rig S,4111 Iincar iect 41M'2111'11 n"L 111 acres Of 6poi an nytl,)ntl, -;t i. m , t non rip.Iris:rt ,x, t load. 80) acres J riparian buffer, and the prescn;itit,n 4 456 liner feet" , ---I pwsm inn 2.?Wo-c i,f v'cc ila"dk bile' ' 33O- !- aclcs quill be peI1?imient11 j)r(3imwd m±h z nn4 p v.- .. C t'LT1,C.'l:_ \..'- slnlcrures arc IS+C::iL'tl V, £thin 1I1C lrt'Olt"ct :irvo, nor will sm ttiZlCMTLC be r',!% E't,, - result t f A pn tjcct. I hwxc cilt'itwca 1:L'7fy m "p id on acthl 11114r1tY mph <tt tile' tic. If Attu at. win tut" l m, 0411111UM?, jilt ?t tilt f71tt 1;C:-tr?tC t.U Cl3maci Litt? r,Ifi('C. i Ilatll: Cou b,r,.( tui rtrr:r ,T)d attCntlt.f v MY, m. tul. Sincere(',. , (:urt 1 (all I?nvirt?nmcnt.al Scienn,t Lnch3Qires • • • SAL Cf-/ -, 6 nA - 25,E AC I? ?C67 PA - I' rnrn? 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