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20040325 Ver 1_Mitigation Plans_20050510
e.?l?Q/l?.l!' ????'GlJ/lZGG?'P/l7ZP/!Z? ?9?1?UfL, V92!i. Environmental Consultants MAILING ADDRESS P.O. Box 2522 Wilmington, N.C. 28402 SHIPPING ADDRESS: 3805 Wrightsville Ave., #14 Wilmington, N.C. 28403 TELEPHONE: office (910) 452-0001 fax (910) 452-0060 May 9, 2005 Mr. Mickey Sugg U.S. Army Corps of Engineers, Wilmington District Regulatory Division P.O. Box 1890 Wilmington, NC 26402-1890 Dear Mr. Sugg: On behalf of ECOBANK (Bank Sponsor), Land Management Group, Inc. (LMG) is pleased to submit to you, and other members of the Mitigation Bank Review Team (MBRT), the updated Wetland Mitigation Plan for the Barra Farms Cape Fear Regional Mitigation Bank (Phase II) located in Cumberland County, North Carolina. The enclosed document reflects those modifications to the plan as coordinated through the MBRT over the last year. If you have any questions or comments regarding the enclosed plan, please contact me either by phone at 910-452-0001 or by email me at cpreziosi@lmgroup.net. We look forward to continuing to work with the MBRT in the development and implementation of a successful Barra Farms, Phase II project. Sincerely, Land agemen oup, Inc. Christian Prezios Environmental Scientist Enclosures CC. Ms. Becky Fox, USEPA Ms. Cyndi Karoly, NCDWQ Mr. Howard Hall, USFWS Mr. Melissa Carle, NCDCM Ms. Maria Tripp, NCWRC Q?c??oeL22:2 ID MAY 1 0 p005 WETLANDS AND sTORMWgTERITM 9R, H WETLAND MITIGATION PLAN BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK IN CUMBERLAND COUNTY, NORTH CAROLINA PHASE II Submitted by: Ecosystems Land Mitigation Bank Corporation 1555 Howell Branch Road Winter Park, FL 91 ECOBA NK All 1 a dSP \ 1,ke 63 +. i PAY CSp! Feat Prepared by: Land Management Group, Inc. P.O. BOX 2522 Wilmington, NC December 2004 I TABLE OF CONTENTS EXECUTIVE SUMMARY ...........................................................................................................1 1. INTRODUCTION .......:......................................................................................................3 II. MITIGATION GOALS .....................................................................................................5 III. SITE DESCRIPTION ........................................................................................................5 A. WETLAND GEOMORPHOLOGY ........................................................................6 B. PRIOR ANTHROPOGENIC IMPACTS ................................................................7 C. GENERAL SOIL CHARACTERISTICS ............................................................10 D. VEGETATION ......................................................................................................11 E. WETLAND FUNCTIONS ....................................................................................12 F. SITE SUITABILITY .............................................................................................12 Service Area Considerations ..........................................................................12 Replacement of Wetland Functions and Values ..........................................14 IV. PROPOSED MITIGATION ...........................................................................................17 A. BANK SECTIONING ...........................................................................................18 B. RESTORATION ....................................................................................................19 C. ENHANCEMENT .................................................................................................24 D. PRESERVATION ..................................................................................................24 V. MONITORING PLAN ....................................................................................................24 A. VEGETATION MONITORING ...........................................................................25 B. HYDROLOGY MONITORING ...........................................................................26 C. ANNUAL MONITORING REPORTS .................................................................27 VI. CONTINGENCY PLAN ................................................................................................27 VII. IMPLEMENTATION SCHEDULE AND FINANCIAL ASSURANCES ................29 VIII. CREDIT RATIOS AND CREDIT RELEASE SCHEDULE .......................................30 IX. FINAL PROPERTY DISPENSATION .........................................................................32 X. SOURCES OF INFORMATION ...................................................................................33 1Q?c??on?p MAY 1 0 2005 DENR - WATER QUALITY WETLANDS AND STOWMTER BRANCH i TABLES 1. LIST OF ELEVEN-DIGIT HYDROLOGIC UNITS OF GEOGRAPHIC SERVICE AREA (GSA) 2. MITIGATION ACREAGE & CREDITS BY SECTION 3. WATER BUDGET 4. PLANTING REGIME 5. PERFORMANCE AND MONITORING / MAINTENANCE BONDS 6. MITIGATION CREDIT RELEASE SCHEDULE (SECTION 1) FIGURES L. SITE VICINITY MAP 2. USGS TOPOGRAPHIC QUADRANGLE 3. USGS 8-DIGIT HYDROLOGIC UNIT MAP 4. 1998 NAPP COLOR AERIAL PHOTOGRAPH 5. EXISTING DRAINAGE NETWORK MAP 6. MAP OF JURISDICTIONAL WETLANDS/WATERS OF THE U.S. 7. PC/CC STATUS MAP 8. USDA-SCS GENERALIZED COUNTY SOIL SURVEY 9. MAP OF GEOGRAPHIC SERVICE AREA (GSA) 10. MITIGATION PLAN MAP .' 11. BANK SECTIONS 12. GRADING PLAN 13. MONITORING PLAN APPENDICES A. MITIGATION BANKING INSTRUMENT - BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK B. BARRA I FIFTH ANNUAL MONITORING REPORT C. DUKE UNIVERSITY WETLAND CENTER RESEARCH - ABSTRACTS AND CONCLUSIONS DERIVED FROM BARRA I STUDY SITE D. ECOREGIONS OF NORTH CAROLINA E. LMG DRAINMOD ANALYSIS OF BARRA II F. BARRA II SITE PHOTOGRAPHS G. THREATENED & ENDANGERED SPECIES REPORT H. SAMPLE FINANCIAL ASSURANCE DOCUMENTS I. PROPERTY BOUNDARY SURVEY ii sk, U) D i EXECUTIVE SUMMARY Ecosystems Land Mitigation Bank Corporation (ECOBANK) has established Phase I of the Barra Farms Cape Fear Regional Mitigation Bank (Bank) within the Middle Atlantic Coastal Plain Ecoregion (Ecoregion 63) of the Cape Fear River Basin. Phase I consists of the successful restoration, enhancement and preservation of 623 acres (out of a total of 2,435 acres) within the headwaters of Harrison Creek, a first-order tributary of the Cape Fear Rivera The Phase I restoration and enhancement activities included filling 100,000+ linear feet of ditches and canals and planting 192,000 native tree species. These activities were completed in January, 1998, and five years of monitoring have demonstrated hydrologic and vegetative success. Further, scientific research conducted by the Duke University Wetland Center, under the direction of Dr. Curtis J. Richardson, has demonstrated the downstream water quality benefits that the restored Phase I site has provided. The Bank is composed of approximately 2,435 acres of interstream flats, former Carolina bays, historic stream origins, and floodplains that were ditched, leveled, and drained to support agriculture production and logging activities. ECOBANK developed a mitigation plan in 1997 that described existing conditions and presented a plan for restoring wetlands in a phased approach. A Mitigation Banking Instrument (MBI) establishing the Barra Farms Bank was adopted between ECOBANK and the appropriate federal and state regulatory agencies in March 1999. The NMI provides for expanding the Bank to incorporate the remaining 1,812 acres (Phase I1), which continue to be farmed and logged. The MBI also provides for expanding the Bank's service area with the addition of Phase II. ECOBANK is submitting this Barra Farms, Phase II Wetland Mitigation Plan in order to add the adjacent Phase II land (1,812 acres) to the Bank. The Phase H site includes 907 acres of wetland restoration, 215 acres of wetland enhancement, and 621 acres of wetland preservation. On-site evaluations and DRAINMOD computer modeling have been used to determine the extent of restoration, enhancement, and preservation. Based upon these acreages, the Barra Farms, Phase II site provides for 1,139 bank credits. The Sponsor proposes to implement the Phase II bank site in three sections. The following plan provides site-specific information pertaining to bank sections, existing conditions, proposed mitigation activities, and performance monitoring. In addition, the plan contains provisions for bank credit ratios, credit-release schedule, financial assurances, and final property dispensation. 2 ? - D Z C z I. INTRODUCTION On March 5, 1999, a Mitigation Banking Instrument (MBI) was executed by ECOBANK (Bank Sponsor), and the U.S. Army Corps of Engineers (USACE), the U.S. Environmental Protection Agency (EPA), the U.S. Fish and Wildlife Service (USFWS), the North Carolina Wildlife Resources Commission (NCWRC), and the North Carolina Division of Water Quality (NCDWQ), collectively comprising the Mitigation Banking Review Team (MBRT). The MBI was developed in accordance with the Federal Guidance for the Establishment, Use and Operation of Mitigation Banks, 60, Federal Register, 58605, November 28, 1995 (Guidance). The purpose of the MBI was to establish Phase I of the Barra Farms Cape Fear Regional Mitigation Bank (Barra I) in Cumberland County, NC (refer to Appendix A). Phase I consisted of restoration, enhancement, and preservation of 623 acres adjacent and contiguous to 1,812 acres (totaling 2,435 acres) of pocosin/Carolina bay wetlands which comprise the headwaters of Harrison Creek (a first-order tributary of the Cape Fear River). All wetland restoration and enhancement activities were completed on Barra I from October, 1997 to January, 1998. Restoration of wetland hydrology consisted of filling 100,000+ linear feet of major canals and lateral ditches to redirect groundwater slope to the restored section of Harrison Creek. In addition, more than 192,000 plants, consisting of 19 swamp forest, wet hardwood forest and upland pine species were planted in January, 1998. 3 Hydrologic and vegetative success criteria have been met and documented over the duration of the five year monitoring period since implementation of site restoration. The Fifth Annual Monitoring Report is included as Appendix B for reference. Natural hydrologic regimes and water quality benefits have been documented by research scientists from the Duke Wetland Center, Nicholas School of the Environment, Dube University under the direction of Dr. Curtis I Richardson (refer to Appendix Q. The MBI (Appendix A, Paragraph 2.2) provides for the expansion of the Barra Farms Bank to incorporate the remaining Phase II Barra land (1,812 acres). Adding Phase II to the Bank will significantly improve the water quality, wildlife habitat, and ecosystem benefits already achieved in Phase I. Phase H restoration and enhancement activities will include filling approximately 149,550 linear feet of ditches/canals and planting approximately 405,000 native trees. The proposed mitigation project is intended to compensate for those wetland losses authorized by applicable federal and state permits via the restoration, enhancement, and preservation of 1,812 acres at the Barra H mitigation site. Barra II is located at the headwaters of Harrison Creek in Cumberland. County, North Carolina (Figure 1). The Barra II mitigation plan serves as an extension of the MBI for the 623-acre Barra I site initiated in March 1999. The following plan provides detailed information related to project goals and objectives, existing site conditions, proposed mitigation activities, site- success criteria, financial assurances, property dispensation, and annual monitoring as provided in the Barra I MBI. 4 II. MITIGATION GOALS The objective of the Barra II project is to provide for the establishment of a compensatory wetland mitigation bank suitable for offsetting unavoidable wetland impacts authorized by state and federal permits. The long-term goal of the project is to establish pocosin and associated pine flatwood/savannah habitat via the restoration, enhancement, and preservation of 1,743 acres of wetlands situated at the headwaters of Harrison Creek (a first-order tributary of the Cape Fear River). Mitigation activities will provide for intact, functional habitat (pocosin and pine flatwood/savannah) characteristic of the Middle Atlantic Coastal Plain Ecoregion (refer to Appendix D). Ultimately, the mitigation bank will provide for increased floodwater storage capacity, enhanced nutrient filtration/transformation, and increased habitat for species utilizing headwater wetland systems. The mitigation area will be preserved in perpetuity through a conservation easement and transferred through fee simple title to an approved public land management organization (refer to Section VIII of the mitigation plan for more detailed information regarding property dispensation). III. SITE DESCRIPTION The 1,812-acre Barra II mitigation site is located immediately south of the junction of NC Highway 210 and State Route 2003 in Cumberland County, NC (UTM 17-710519 E; 3868292 N) (Figure 2). The tract consists of 1,788 acres of previously altered and/or disturbed nonriverine (i.e. pocosin/Carolina bay) wetlands and 24 acres of non-hydric soil. In conjunction with Barra I lands, the tract forms nearly the entire headwater wetland system of Harrison Creek (a first-order tributary of the Cape Fear River Basin). 5 The project site is located within the Lower Cape Fear River Basin (USGS 8-digit Hydrologic Unit 03030005, Cape Fear River Subbasin 030616) (refer to Figure 3). A. WETLAND GEOMORPHOLOGY Characteristic geomorphic features of the Middle Atlantic Coastal Plain Ecoregion - including elliptical Carolina bays (with deep organic soils), sandy uplands, and incised blackwater streams are common in the vicinity of the project area. The mitigation site is situated within Harrison Creek Bay, a relatively large headwater Carolina bay. Elevations typically range from -120 to -125 feet above mean sea level (amsl). Thus, topography is relatively level (0-2% slopes), with slight undulations from edges of the bay rims. The Barra H mitigation site is situated within the interior portions of the bay with slopes of 0-1 %. Natural drainage of the area is by rapid permeability through sandy upland areas to the concave organic Carolina bay, where permeability and water movement slows. Barra II's natural drainage and water movement is in a south to southwest direction towards Harrison Creek. Prior to anthropogenic disturbance, wetland systems of the Barra II site were typical of natural pocosins/Carolina bay systems occurring along interstream divides throughout the entire Coastal Plain. Indeed, the Barra tract is part of a larger ecoregion, the Middle Atlantic Coastal Plain, as defined by Griffith et al. (2002) " Bcoregions of North Carolina" (Appendix D). 6 B. PRIOR ANTHROPOGENIC IMPACTS Agricultural and silvicultural drainage improvements have been historically established within the Barra 11 tract. Please refer to Figure 4 (1998 aerial photograph of the site) depicting wooded and field conditions of the tract. Initial clearing and ditching of the tract began in the mid 1960's in order to convert Harrison Creek Bay into agricultural fields. A system of lateral and collector ditches was installed throughout the farm in the 1970's. The drainage network consists of 2 to 4 ft-deep lateral (i.e. tertiary) open ditching on approximate 300-ft spacing, which connect to 4 to 6 ft-deep collector (i.e. (secondary) ditches, ultimately draining off-site through large (6 to 8 ft-deep) canals (i.e. primary ditches). There are approximately 88,690 linear feet (If) (equivalent to 16.8 miles) of lateral ditches on the tract. An additional 60,8601f (equivalent to 11.5 miles) of collector ditches and canals drain Barra II (refer to Figure 5). All of the artificial drainage is in a southwest direction to an outlet canal draining to Harrison Creek through a water-control structure. Much of the tract's original hydrology has been modified to varying degrees depending upon position relative to existing ditches. On-site ditches function in two capacities: (1) drawdown of groundwater via lateral drainage effect; and (2) interception of surface flow associated with storm or flood events. The effect of each ditch is related to its size (i.e. depth), landscape position/elevation, and surrounding soil properties (e.g. hydraulic conductivity and drainable porosity). Based upon site evaluations and DRAINMOD analysis, the lateral drainage effect of the ditches typically ranges between 150 ft to 255 ft. Please refer to the DRAINMOD drainage study (Appendix E) conducted by Land 7 Management Group, Inc. (LMG) for more specific information related to effective drainage distances of ditches located on the tract. Other land-disturbing activities on the tract have included clearing/conversion to agricultural fields and timber management. Approximately 440 acres of Barra II is currently in use for agricultural production. An additional 260 acres have been historically cleared and ditched. These areas, however, are not currently in agricultural use and have become overgrown with opportunistic vegetative species. The remainder of the tract is in active silvicultural production (primarily for loblolly pine). Based upon site evaluations and DRAINMOD analysis, 212 acres of wooded areas have been effectively drained (refer to Figure 6 for mapped jurisdictional wetlands and waters of the U.S.). On-going silvicultural activities on the tract include ditching, construction of temporary forestry roads, and logging. It should be noted that these activities are exempt from Clean Water Act (CWA) Section 404 permitting with an approved forestry plan. Therefore, such practices continue on Barra II even within jurisdictional 404 wetlands. During recent site evaluations, LMG staff observed foresters excavating a large interior ditch (approximately 8 ft deep, 10 ft wide, and 300 ft in length) for the construction of a temporary forestry road (refer to site photographs, Appendix F). Such land-use activities are evidence that natural wetland functions continue to be compromised on the tract even within jurisdictional areas and serve as a testament to the importance of the preservation component of the mitigation site. 8 Based upon the extent of agricultural fields and land-use practices, the Natural Resources Conservation Service (MRCS) provided Prior-Converted (PC) and Commenced Conversion (CC) determinations for the tract. Prior-converted wetlands are those areas that were converted to agricultural fields prior to December 23, 1985. These areas can be continued to be farmed and maintained and include those areas granted a CC determination. Approximately 440 acres have been designated as PC areas by NRCS. For areas granted a CC determination, the producer was to have finished the commenced conversion by January 1., 1995. The Cumberland County Farm Service Agency (FSA) verified these determinations for the Barra II tract as was required in 1995. Based upon FSA site visits in March 1995, approximately 260 acres of the CC areas had been completed. Approximately 410 acres of approved commenced areas were not completed by January 1, 1995. Refer to Figure 7 for a map of PC and CC designations for the Barra R site. Due to previous site disturbance and intensive land-use practices, functional wetland habitat of the tract has been severely compromised. Much of the site does not exhibit conditions suitable for naturally occurring vegetative and faunal assemblages. In particular, it is unlikely that disturbed areas of the site offer suitable habitat for federally- listed threatened or endangered species. While the potential presence of these species has been identified (see Appendix G), land-use practices likely prevent their occurrence within the project area. Refer to Appendix G for more detailed information regarding the potential presence of federally-listed threatened or endangered species. 9 C. GENERAL SOIL CHARACTERISTICS Basic geomorphic processes have determined the type and nature of existing soils located on the Barra 11 site. The tract is located in the center of an ancient estuary created when sea level occurred at elevations of 100'to 170 ft amsl during the late Miocene to Pliocene geologic epoch, 10 to 25 millions years before present (MMBP) (Oaks and DuBar 1974, Thom 1967). Sediments deposited during this era are largely fine clays and silts transported from Piedmont and Mountain regions of the Cape Fear River. Subsequent fluvial migration of the Cape Fear River channel during inter-glacial periods resulted in thick deposits of sands from the Sandhills region on top of the finer-textured basal sediments. This event represents the starting point for modern soil-forming factors in the broad sandsheet located between the existing channels of the South and Cape Fear Rivers. As depicted in the Soil Survey of Cumberland and Hoke Counties, North Carolina, USDA-SCS (1984), Map 19 (Figure 8), the tract consists predominantly of Croatan muck. Evaluations of the Barra II tract confirmed the USDA-SCS.mapping to be representative of the soil types located at the site. It should be noted that land use practices have altered soil conditions to varying degrees depending upon the extent of drainage. In some areas, the organic surface characteristic of Croatan muck soil series has been oxidized. In its natural state, Croatan muck consists of very poorly drained organic soils. These soils typically have an organic surface and subsurface to depths of 2 to 3 ft, where loamy sand to sandy loam substratums are encountered. These land types (in undisturbed conditions) exhibit 404 wetland hydric soil and vegetative characteristics, 10 but significant areas have been altered through prescribed drainage improvements (refer to Appendix E). Smaller perimeter areas of the tract are mapped as Torhunta and Leon soils (Figure 8). These soil types generally occur around the perimeter of, and drain into, organic soils (e.g. Croatan) of slightly lower topography. The Torhunta series consist of very poorly drained soils occurring in broad interstream areas. Surface runoff is very slow. The Leon series consist of poorly drained soils of broad interstream flats and depressions. Surface runoff for these soils is slow. D. - VEGETATION Agricultural and silvicultural practices have significantly altered natural vegetative assemblages of the wetland system. Undisturbed bays typically have dense, impenetrable vegetation with characteristic species including loblolly bay (Gordonia lasianthus), American titi (Cyrilla racemiflora), fetterbush (Lyonia lucida), gallberry (Ilex glabra), pond pine (Pinus serotina), red maple (Acer rubrum), black gum (Nyssa sylvatica), and catbrier (Smilax species). PC fields (approximately 440 acres) are currently in agricultural production for corn, soybean, and winter wheat rotation. Some CC fields that were previously cleared and ditched have reverted to vegetation consisting of more opportunistic species such as broom sedge (Andropogon spp.), catbrier, and saplings of red maple and sweet gum (Liquidambar styraciflua). In general, areas that are influenced by drainage effect of 11 ditches exhibit a drier-end species assemblage. Species indicative of slightly drier conditions resulting from drainage (and not typically found in Croatan muck soils) include sweet gum, winged sumac (Rhus copallinum), loblolly pine (Pinus taeda), bracken fern (Pteridium aquilinum), and dog fennel (Eupatorium capillifolium). E. WETLAND FUNCTIONS Undisturbed pocosins and Carolina bays have been recognized to support a variety of functions important for the local watershed and the regional basin in which they are located. Documented functions include, but are not limited to, the following: (1) nutrient retention/transformation; (2) surface water/groundwater storage; and (3) refuge/feeding habitat for variety of resident and migratory fauna (Richardson 1983; Sharitz and Gibbons 1982; Walbridge 1993). Carolina bays, in particular, represent a landscape feature unique to the southeastern Coastal Plain and supporting vital habitat for migratory songbirds and endemic species (Shantz and Gibbons 1982). Associated human-based values provided by intact pocosin/bay systems include (1) stormwater storage/flood attenuation; (2) enhanced water quality/pollutant removal; and (3) recreational value (Mitsch and Gosselink 1993; Richardson 1983; Shantz and Gibbons 1982; Walbridge 1993). F. SITE SUITABILITY Service Area Considerations: The Barra II Wetland Mitigation Bank is located in the lower Cape Fear River Basin (USGS Hydrologic Unit 03030005) (refer to Figure 3). This hydrologic unit has been 12 rated as a Category I (needing restoration) according to NC DWQ's Unified Watershed Assessment. The headwaters of Harrison Creek are characterized by the presence of wetland community types (i.e. bay forest/Carolina bay - as defined by Schafale and Weakley, 1990) occurring throughout the lower Cape Fear River Basin. In addition, the Barra 11 tract is located within the Middle Atlantic Coastal Plain (Ecoregion 63) as defined by Griffith et al. (2002) "Ecoregions of North Carolina" (refer to Appendix D). This ecoregion encompasses the area defined as the `Carolina Flatwoods' - a subregion occurring along nearly level, poorly drained areas and exhibiting characteristic landforms including pocosins and Carolina bays. The "Ecoregions of North Carolina" is a collaborative effort between the NRCS, EPA, NCDENR, U.S. Geological Service (USGS), U.S. Forestry Service (USFS), and the University of North Carolina (UNC). The Ecoregions Project has identified areas of North Carolina consisting of ecosystems that are similar in type, quantity, and quality of environmental resources. Characteristics of ecoregions include similar geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology. Ecoregion 63 (Middle Atlantic Coastal Plain) and subregion 63h (Carolina Flatwoods) includes all 2,435 acres of Barra Farms and extends south to the mouth of the Cape Fear River in New Hanover County. The Geographic Service Area (GSA) is the designated area wherein a bank can reasonably be expected to provide appropriate compensation for impacts to similar wetland and/or other stream or aquatic functions. Based upon the decision of MBRT 13 members, the GSA for the Barra II Wetland Mitigation Bank will be the same of that identified for Phase I of the Bank. Specifically, the eastern and western limits of the GSA are defined by the outer boundaries of the Cape Fear River Basin contained with the following Cataloging Units: 03030004, 03030005, and 03030006. The MBRT has restricted the service area to the south by excluding watersheds in the Wilmington area due to Karst geomorphology and expected development patterns in the region. To the north, the GSA has been reduced along 11-digit watersheds to exclude the Raleigh belt portions of the Cape Fear River Basin. The GSA is inclusive of the 11-digit watersheds listed in Table 1. Refer to Figure 9 for the location and extent of the restricted GSA. The lower Cape Fear River hydrologic unit extends south to the coast in New Hanover County (Figure 3). Based upon standard state mitigation guidelines (including those set forth by NCDENR and the NC Wetland Restoration Program (WRP)), the Barra II bank may be suitable for providing compensatory mitigation for wetland impacts occurring anywhere within the same 8-digit hydrologic unit (i.e. the lower Cape Fear River Basin). Therefore, use of the Bank for compensatory mitigation will also be considered outside of the designated GSA if this option is preferable to other mitigation alternatives during the course of the permit review process. Replacement of Wetland Functions and Values: Implementation of the proposed Barra II mitigation bank and successful restoration of such a large headwater wetland complex will benefit not only the local watershed (i.e. Harrison Creek), but the regional lower Cape Fear River Basin as well. These benefits 14 are expected in light of the tangible and well-documented functions and values attributed to headwater wetland systems (as described above). Natural hydrologic and vegetative conditions of nearly the entire Harrison Creek Bay system will be restored and/or enhanced. Like other small, blackwater streams of the Coastal Plain, Harrison Creek is susceptible to water quality impairment resulting from non-point source discharges of contaminants - including nitrogen (1), phosphorous (P), and a suite of organophosphate-based herbicides and pesticides. Currently, agricultural and silvicultuml practices of Barra II contribute to decreased water quality of downstream waters. Ditches and canals drain 1,812 acres of agricultural fields and forest stands. These surface waters serve as direct conduits for sediment, nutrients, and other pollutants entering Harrison Creek. Nutrient loading (in the form of excess nitrogen and/or phosphorous) may manifest in a variety of water quality problems including hypoxia/anoxia, aquatic weed infestations, and toxic algal blooms. Water quality impairments, in turn, can negatively affect resident macroinvertebrate and fish assemblages. Biological indices measuring benthos and-fish community structure are used by DWQ as a means of recording trends in water quality impairment. According to data from the NC DWQ's Basinwde Assessment Report (1999), Harrison Creek is rated `Good-Fair' for fish community and benthos bioclassifications. The benthos bioclassification improved from `Fair' to `Good-Fair" since the previous report data in 1993. 15 Predominant land-use practices associated with agriculture and forestry are sources of impairment that may negatively impact faunal communities downstream. It is expected that removal of sources of impairment and restoration of wetland habitats will enhance the quality of waters draining into Harrison Creek. Restoration of natural groundwater conditions will promote enhanced uptake/filtration of potentially nutrient-enriched agricultural run-off and associated contaminants. As documented by researchers at the Duke University Wetland Center (under the direction of Dr. Curtis J. Richardson),. mitigation activities on Barra I resulted in a significant decrease in nitrogen run-off from restored agricultural fields (refer to Appendix Q. Clearly, such work has discernible benefits to the water quality of downstream waters including the lower Cape Fear River Basin. In addition, enhanced water quality directly benefits residents of New Hanover County, since municipal water supplies are drawn from the Cape Fear River just above Lock and Dam #1 in Elizabethtown, NC. Due largely to physiographic characteristics, the restored wetland will increase the buffering capacity of storm water runoff, thereby reducing the danger of flooding downstream. Episodic peak runoff will be intercepted and discharged slowly over time. Existing fields in agricultural production do not provide this flood attenuation value. The restored habitat will also serve as refuge for resident and migratory fauna providing the opportunity for increased recreational activity (including bird watching and/or 16 hunting). It should be noted that the entire 2,435-acre Barra Farms site is part of a wild turkey restoration area. In addition, this area will continue to serve as an ideal setting for academic groups to conduct research and/or teaching. Currently, the Duke University Wetland Center uses Barra I for wetland research. Research can be expanded to encompass Barra II upon initiation of the mitigation activities. Indeed, there are numerous benefits to the local and regional community inherent in a project of this scope and magnitude. IV. PROPOSED MITIGATION A total of 1,812 acres of existing or previously altered wetlands will be restored, enhanced, or preserved through the implementation of the mitigation plan. The proposed location and extent of restoration, enhancement, and preservation is depicted in Figure 10. The areas currently in agricultural production and/or within the effective drainage distance of existing canals/ditches will be restored via filling of ditches and vegetative plantings. Based upon site evaluations and the corresponding DRAINMOD study, the effective drainage distances has been determined to be up to 170 ft for small lateral (i.e. tertiary) ditches (2 to 3 ft deep), and up. to 255 ft for collector ditches and canals (i.e. primary and secondary) ditches (4 to 7 ft deep). Areas within the lateral drainage effect of ditches will be restored via filling of ditches, grading, and plantings. Areas beyond the lateral drainage effect that are have been previously cleared will be considered enhancement. All other areas (including those actively timbered) will be preserved. The 17 entire Barra II mitigation site will be placed within a conservation easement - the terms of which will prohibit any land-disturbing activity. A. BANK SECTIONING As mentioned previously, the Sponsor is proposing to divide the Phase H bank site into three sections that will be implemented over a period of time. Bank sectioning will not affect the overall scope of the mitigation effort - nor will it affect total bank acreage and credits. Rather, the sequence of mitigation activities to be implemented will be staggered such that credit supply is paced with credit demand. The location and extent of the three sections is graphically depicted in Figure 11. Table 2 outlines the acreage, mitigation type and amount of credits yielded per section. Each of the sections will be surveyed and conservation easement deeds conveyed to a third parry beneficiary to ensure long-term protection of the entire Phase II bank site. Prior to the initiation of a new section, the Bank Sponsor will provide written notification to the MBRT requesting authorization to proceed. This notification will identify any amendments to the approved mitigation plan that may be incorporated based upon the documented results of the previous section(s). Section 1 (1,171 ac total) will be the first to be implemented. A total of 21,370 If of ditches will be backfilled as part of this effort. All collector and lateral ditches will be backfilled with the exception of those adjoining Section 2. Similar to the phasing between Barra I and Barra II, the adjoining ditches and roadbeds/berms will be left in place until such time that the next section is implemented. More than 132,000 seedlings of characteristic tree and shrub species will be planted. Approximately 304 acres of 18 nonjurisdictional areas will be functionally restored via grading and planting within Section 1. Section 2 (335 acres) consists entirely of PC fields currently in crop production. Approximately 62,100 if of collector and lateral ditches will be backfilled and over 142,000 seedlings of characteristic tree and shrub species planted. Mitigation activities in this section will result in the restoration of 328 acres of headwater wetlands. The final section to be implemented consists of PC fields located just north of the Phase I bank site. Of the 306 total acres, 299 acres will be restored via the backfilling of approximately 58,000 if of collector and lateral ditches and the planting of over 130,000 seedlings. In addition, the primary ditch (main outlet canal) situated between Phase I and Phase II will be backfilled. The north-south outlet canal located along the western boundary of all three sections will remain in place to maintain drainage for up-gradient properties. The following is more specific information pertaining to mitigation activities occurring throughout the Bank II site (according to mitigation type): B. RESTORATION A total of 907 acres of the Barra II tract is targeted for restoration. Initial site preparation will include grubbing and herbicide application of former agricultural fields. A water soluble herbicide mixture (e.g. Accord, Rodeo, Chopper, Garlon 4, or equivalent) will be 19 applied with standard rates and methodology suitable for wetland mitigation site development. Herbicide application will be conducted during a period considered optimum for treatment (i.e. July/August). Prior to grading, elevations of field crowns relative to adjacent ditch banks will be recorded. This information will help identify specific grading and planting requirements in areas that exhibit significant crowning. Backfilling of ditches/canals and associated grading activities will restore the natural wetland hydroperiod of the bay system. Initial grading work will focus on the filling of lateral (i.e. tertiary) and collector (i.e. secondary) ditches on the tract. Once lateral and collector ditches have been completely filled, larger canals (i.e. primary ditches) will be backfilled. Plugs consisting of finer, compacted material will be used at prescribed intervals to reduce potential subsurface drainage within the larger backfilled ditches. In addition, earthen berms (approximately 12" to 18") will be installed perpendicular to filled ditches to prevent gully erosion of former drainageways during periods of increased surface runoff. These berms will be spaced approximately 300 to 400 ft apart from each other. Specific grading activities are illustrated in Figure 12. Fill material will come from existing roadbeds and spoil piles. Removing roadbeds will also prevent access to the tract from trucks, SW's and other vehicles. Small paths will be kept open with bush hogs to facilitate mitigation site monitoring and management. Disking of former agricultural fields will be conducted as needed prior to site planting. 20 The restored wetland is intended to exhibit hydrologic conditions characteristic of relatively undisturbed bay forest/Carolina bay systems occurring within the ecoregion. A water budget summarizing expected total monthly hydrologic inputs and outputs (during dry, average, and wet years) is provided in Table 3. Bay wetlands receive hydrologic input primarily via precipitation. Generally, there are no additional surface water inputs or outputs. Therefore, the change in water volume for this type of wetland system can be best approximated by changes in precipitation, evapotranspiration, and infiltration rates. In addition, hydrologic response to restoration activities on the site can be more accurately predicted from the DRAINMOD analysis provided in Appendix E. DRAINMOD is an effective tool for predicting site hydrology since the model evaluates daily climatic conditions over a thirty year, long-term analysis. Based upon site-specific DRAINMOD analysis, wetland hydrology is met when parallel ditches (averaging 3-ft depths) are spaced at intervals greater than 300 ft apart. Considering the lack of hydrologic outputs (i.e. surface water outflow or lateral seepage) of Carolina bay systems, removal of interior drainage features (i.e. ditches) will provide for a significant increase in water storage and the establishment of wetland hydrology across the site. Proposed restored areas are divided into two distinct plant communities based upon soil characteristics, landscape position, and restored hydrologic conditions. The location and extent of the restored communities, bay forest/Carolina bay and wet pine flatwood/savannah, are depicted in Figure 10. The bay forest/Carolina bay community will be planted within deep organic soils (i.e. Croatan series) of lower landscape positions while the wet pine flatwood/savannah community will be planted in slightly higher 21 topographic areas of the site (mapped as Torhunta and Leon soil series). Aerial topographic survey data of the bank site has been acquired. These data are currently being processed prior to final map production. In addition, a boundary map of Torhunta/Leon soils will be produced and submitted as an addendum to this document upon completion. Both the topographic survey and the soil delineation map will be used to identify more accurately the boundary of the wet pine flatwood/savannah habitat to be restored. Planting for both habitat types will be conducted concurrently or immediately after grading work during the winter or early spring (i.e. January 15 to March 15). As defined by Schafale and Weakley (1990), Carolina bays are a subset of high pocosins and/or bay forests occupying lower landscape positions within organic-rich deposits. These wetlands are characteristically nutrient poor (i.e. ombrotrophic) and are subject to seasonal saturation or flooding. Characteristic species include loblolly bay, sweet bay (Magnolia virginiana), red bay (Persea borbonia), pond pine, swamp tupelo (Nyssa bitlora), red maple, loblolly pine and Atlantic white cedar (Chamaecyparis thyoides). Understory species typically include fetterbush, American titi, and gallberry (Schafale and Weakley 1990). Planted species of the restored bay will be consistent with those typically found in undisturbed bay forests. Target planted species will include pond pine, American white cedar, black gum, swamp tupelo, water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum). Tree species will be planted on 10-ft spacings, corresponding to 435 trees per acre. (Refer to Table 4 for a list of plant species and quantities targeted for 22 J the bay wetland restoration.) It is expected that characteristic shrub species (including ( sweet bay, loblolly bay, gallberry, American tiff, and fetterbush) will recruit naturally into these restored areas. Wet pine flatwoods/savannahs of slightly higher landscape position and mineral soils will also be restored as part of Barra II. As defined by Schafale and Weakley (1990), these communities occur in seasonally wet conditions on flat (or nearly flat) Coastal Plain sediments. Canopy species typically include longleaf pine (Pinus palustris), loblolly pine, and pond pine. Characteristic understory shrub species include gallberry, sweet bay, red bay, giant cane (Arundinaria gigantea), and creeping blueberry (Vaccinium crassifolium). According to Schafale and Weakley (1990), the association between pine flatwoods and savannahs is generally not well defined. Savannahs and flatwoods may represent shifts in vegetation composition in response to long-term fire regimes. Savannahs typically exhibit higher herbaceous diversity and less dense shrub understory (Schafale and Weakley 1990). Characteristic species to be planted within the restored pine flatwood/savannah habitat of the mitigation site include longleaf pine (Pinus palustris) and water oak (Quercus nigra). (Refer to Table 4 for a list of plant species/quantities in these restored areas.) Herbaceous and understory vegetation characteristic of the restored habitat are expected to recruit naturally. 23 C. ENHANCEMENT A total of 215 acres of partially drained wetlands will be enhanced via the removal of drainage ditches and the reestablishment of characteristic wetland vegetation. Areas of proposed enhancement are depicted in Figure 10. Enhancement areas that are unvegetated at the time of construction will be planted with characteristic tree species at a density of 435 trees per acre. D. PRESERVATION A total of 621 acres of non-drained wetlands are targeted for preservation (Figure 10). These wetlands will be preserved through appropriate legal covenants. These covenants will assure that the wetlands will be protected in their natural state in perpetuity (refer to Section VIII). The preservation area consists of relatively undisturbed jurisdictional wetlands. Wetland hydrology of this area remains unaltered by drainage features of the site. As such, these wetlands exhibit seasonal saturation and inundation characteristic of natural, undisturbed bay wetlands located in the region. The reference plot will be located within this relatively undisturbed preservation area (refer to Section V). V. MONITORING PLAN Upon agency concurrence of the final wetland mitigation plan, mitigation site activities will be initiated during the following summer in Section 1. Staff environmental scientists will be present during project construction to ensure that the work is consistent with the proposed design. An `as-built' survey will be prepared to document site conditions immediately post-construction. The mitigation site will be monitored annually for a 24 period of 5 years (or until such time deemed successful) to document site development over time. The site will be evaluated based upon performance criteria related to vegetative density and wetland hydrology. The primary success criteria for the Barra II mitigation site will be: (1) Demonstrated density of planted species to meet or exceed 320 trees per acre at the end of 3 years (post-planting) and/or 260 trees per acres at the end of 5 years (post planting). r (2) No single volunteer species (most notably, red maple, loblolly pine, and sweet gum) will comprise more than 50% of the total composition at year 2 or 3. If this occurs, remedial procedures/protocols outlined in the contingency plan (refer to Section VI of this document) will be implemented. During year 4 & 5, no single volunteer species, comprising over 50% of the total composition, may be more than twice the height of the planted trees. If this occurs, remedial procedures outlined in the contingency plan will be implemented (3) If, within thefirst three years, any species exhibits greater than 50% mortality, the species will be either replanted or an acceptable replacement species will be planted in its place as specified in the contingency plan. (4) Hydrology during the growing season must be szfficient to meet the guidelines set forth within the 1987 Corps of Engineers Wetlands Delineation Manual (Technical Report Y-87-1). Therefore, the hydrologic criterion will be the establishment of a static water table at, or within, 12" of the soil surface for 5% of the growing season (equivalent to 12 days based upon SCS-established growing season dates) during periods of normal rainfall for the restored wet pine flatwoodlsavannah and 12.5% of the growing season for the restored bay forest/Carolina bay (equivalent to 30 days). A. VEGETATION MONITORING The vegetation monitoring protocol is based upon accepted methods used for the Barra I site. One-hundred and eighty-five (185) permanent 0.1-acre plots (equivalent to 1 Volunteer species can be counted toward meeting the success criteria upon evaluation of site-specific conditions and concurrence by MBRT members. 25 approximately 2% of the restored wetland area) will be established and monitored for vegetative success criteria. A proportional number of monitoring plots will be located within each of the three sections. Within each section, plots will be located via stratified random sampling (allowing also for a proportional number of plots per area of habitat type restored). A subset of the vegetation plots will be paired with groundwater monitoring well (refer to Figure 13). GPS coordinates for the centers of each sampling plot will be recorded and included with the `as-built' survey and subsequent annual monitoring reports. During monitoring, surviving planted individuals and volunteer individuals will be enumerated within each plot. B. HYDROLOGY MONITORING Shallow groundwater hydrology will be monitored via twenty-four (24) automated wells (RDS, Inc. Ecotone-20s) located within the restoration and enhancement areas (refer to Figure 13). The distribution of these wells will be representative of the acreage monitored per section. Wells will be installed in accordance with installation methods outlined in the Wetlands Regulatory Assistance Program (WRAP) Technical Note 00-02 (Sprecher 2000). Water levels will be recorded once daily. Data will be downloaded from the wells every three months (i.e. once quarterly). Data from well downloads will be compiled and graphically displayed to demonstrate hydroperiods of monitored areas. As stated above the primary hydrologic success criteria will be the establishment of a static water table at, or within, 12" of the soil surface for 5% of the growing season 2 As defined by the Soil Conservation Service, the growing season for Cumberland County is 241 days (beginning March 17 and ending November 12). 26 (equivalent to 12 days based upon SCS-established growing season dates) during periods of normal rainfall within the restored wet pine flatwood/savannah community and 12.5% of the growing season (equivalent to 30 days of the growing season) during periods of normal rainfall for the restored bay forest/Carolina bay community. Three permanent reference wells will be installed within the preservation area of the northern portion of the mitigation site. This area consists of an approximate 500-acre block of relatively undisturbed jurisdictional wetlands. Wetland hydrology of this area remains unaltered by drainage features of the site. As such, these wetlands exhibit seasonal saturation and inundation characteristic of natural, undisturbed bay wetlands located in the ecoregion. The location of the reference wells are depicted in Figure 13. C. ANNUAL MONITORING REPORTS Annual monitoring reports will provide quantitative data of vegetative success, comparative hydrographs (restoration area vs. reference area), qualitative observations, and conclusions pertaining to mitigation site development per section. Each section will be monitored and evaluated independently for the purpose of determining appropriate credit release. However, all sections will be submitted under one cover. Monitoring reports will be submitted no later than November 30th of each year. VI. CONTINGENCY PLAN Annual monitoring will help to identify site maintenance needs over time. If the site does not fulfill established success criteria, it will be necessary to evaluate causative factors 27 resulting in site deficiencies and to identify (and subsequently implement) appropriate contingency measures. Any remedial efforts will be implemented based upon site- specific conditions and project objectives. Most often, contingency measures are prompted by deficiencies related to vegetative success and/or site hydrology. If the vegetative success criteria are not achieved, then monitoring data and field conditions will be evaluated to identify the reason for the deficiency. For instance, if certain plant species demonstrate high mortality in a particular location of the site, then an appropriate replacement species may be planted. If species mortality is attributed to unsuitable conditions related to microtopography or hydrology, then selective re-grading or the use of water-control structures may be needed to remedy site hydrology. If opportunistic species (most notably red maple, loblolly pine, or sweet gum) are of an abundance and height that would potentially compromise the health and success of planted species, then these individuals may be removed either through mechanical means and/or herbicidal application. Physical removal of undesirable species may involve either hand cutting or mowing depending on the abundance and frequency of these individuals. A ground-applied water soluble herbicide (suitable for forest management) may be used in addition to, or in place of, mechanical removal. During the winter subsequent to monitoring, a basal bark mixture (consisting of Garlon 4 or equivalent) may be used to treat small, multiple stem individuals (characteristic of early volunteer species on wetland mitigation sites). If the contingency measures are implemented during the summer, then r? a cut stump treatment may be more appropriate. Either way, herbicide mixtures will be l 28 applied with standard rates and methodology suitable for wetland mitigation site management. Based upon stated success criteria, no single volunteer species, comprising over 50% of the total vegetative composition, may be more than twice the height of the planted trees. If this threshold is exceeded, then the remedial actions outlined above will be implemented. In addition to contingency measures related to vegetative success, well monitoring data will be evaluated to identify potential deficiencies related to site hydrology. If the stated success criteria are not achieved, then contingency measures (e.g. selective re-grading) will be implemented. If the site exhibits excessive ponding (such that vegetative success is compromised), then the use of water-control structures or grading may be necessary to reduce the extent or duration of surface inundation. Grading may also be needed if former ditch corridors exhibit significant galley erosion or subsurface drainage. Ultimately, monitoring data and field evaluations will be used to determine the need for specific contingency measures to be implemented. VII. IMPLEMENTATION SCHEDULE AND FINANCIAL ASSURANCES It is anticipated that initial mitigation site activities (i.e. grubbing and herbicide application) will be initiated in July 2005. Currently, the Barra II bank site is under an option to purchase that is valid until June 23, 2005. Upon acceptance of this site-specific restoration plan, the tract will be purchased through fee simple title and a conservation easement recorded on Section 1. Subsequent to the initial site preparation, grading will 29 be conducted (anticipated October 2005). Based upon this implementation schedule, planting of Section 1 will occur during January 2006 and an `as-built' survey will be completed during the Spring of 2006. The bank sponsor is responsible for securing adequate performance, monitoring and maintenance bonds for each Bank section as a form of financial assurance to cover contingency actions in the event of the Phase II Bank default or failure (See Table 5). Monitoring and maintenance bonds will be obtained to ensure monitoring for a five-year period and to ensure that contingency actions are implemented in the event of wetland restoration failure. Sample financial assurance documents in the form of monitoring and Maintenance bonds are included in Appendix H. A separate, long-term trust fund will be provided by the Sponsor for long-term maintenance, management, and remedial actions acceptable to the MBRT. The trust fund will be established upon completion of debiting of the Bank or at the end of the monitoring period; whichever is longer. VIII. CREDIT RATIOS AND CREDIT RELEASE SCHEDULE The Mitigation Plan is intended to result in the forms and amounts, in acres, of wetland compensatory mitigation depicted in Table 2. The credit release schedule (Table 6) is adjusted to reflect the sectioning of the Barra H bank site. Successful implementation of all three section of the mitigation bank site will result in the creation of 1,139 nonriverine 30 wetland credits. As. agreed to by MBRT members, the following ratios have been used to calculate available bank credits: Restoration 1:1 Enhancement 2:1 Preservation 5:1 The credit release schedule for the Bank, as depicted in Table 6, will be based upon successful completion of the following tasks for each of the three Bank sections: Task 1: Task 1 entails acquisition and protection of the Barra Farms (Phase II) Bank Site (Section 1), completion of detailed mitigation planning, review of plan parameters by the MBRT, and signing of the MBI Amendment. Protective covenants, easements, and bonds on the property acceptable to the MBRT will also be obtained. Upon completion of Task 1, 15% of the Bank credits for that section will be released. Completion of Task 1 is a prerequisite for release of any credits from the Barra H Bank, not withstanding completion of other tasks described below. Task 2: Task 2 includes completion of all construction activities within a section of the Phase II Bank. Ditches will be filled and spoil/roadbed material will be recontoured within ditch corridors. Subsequently, soil preparation (if needed) and planting of characteristic wetland trees will be completed. Documentation will be submitted to the MBRT certifying completion of Task 2. Upon completion of Task 2, 15% of the section bank credits will be released (30% cumulative). Task 3: Task 3 involves implementation of the monitoring plan and submittal of annual reports to the MBRT for a five-year monitoring period, or until success criteria have been fulfilled, whichever period is longer. Hydrology and vegetation sampling will be completed toward the end of each growing season (between September 1 and October 31 31). The data will be compiled and success/failure documented within the Bank. The data will be submitted to the MBRT as an Annual Wetland Monitoring Report (AWMR). Upon submittal of the AWMR demonstrating that success criteria are being fulfilled, wetland credits in the section will be released as follows: First AWMR (February 2006): Second AWMR (February 2007): Third AWMR (February 2008): Fourth AWMR (February 2009): Fifth AWMR (February 20010): 10% (40% cumulative) 15% (55% cumulative) 15% (70% cumulative) 10% (80% cumulative) 20% (100% cumulative) Credit releases for Task 3 will occur only if success criteria are fulfilled as stipulated in Section V of this plan. IX. FINAL PROPERTY DISPENSATION Ownership of the Bank will reside with the Sponsor who intends to provide fee simple transfer of the property to the Sandhills Area Land Trust (SALT). Fee simple transfer will occur upon completion of debiting of the Bank or the end of the monitoring period; whichever is longer. A Conservation Easement Deed will be recorded on each section of the Bank Site prior to the implementation of restoration activities. As the grantee of this easement, SALT will be responsible for maintaining the Bank in strict accordance with the provisions expressed therein and will be responsible for protection of the Bank Site in perpetuity. A copy of the Conservation Easement Deed is attached in Appendix I. 32 X.. SOURCES OF INFORMATION Griffith et al. 2002. Ecoregions of North Carolina. U.S. Environmental Protection Agency, Corvallis, OR. Mitsch, W.J. and J.G. Gosselink. 1993. Wetlands (Second Edition). Van Nostrand Reinhold, New York. Oaks, R.Q., Jr. and J.R. Dubar. 1974. Post-Meiocene Stratigraphy, Central and Southern Atlantic Coastal Plain. Utah State University Press. Logan, UT. Richardson, C.J. 1983. Pocosins: Vanishing wastelands or valuable wetlands? BioScience 33 (10): 626-633. Schafale, M.P. and A.S. Weakely. 1990. Classification of the Natural Communities of North Carolina. Third approximation. N.C. Natural Heritage Program, Raleigh, N.C. Sharitz R.R. and J.W. Gibbons. 1982. The ecology of southeastern shrub bogs (pocosins) and Carolina bays: a community profile. U.S. Fish and Wildlife Service, Office of Biological Sciences. FWS/OBS-82/04. 103 pp. Skaggs, R.W. et al. 1995. Reference Simulations for Evaluating Wetland Hydrology, in Campbell, K. (ed.), Versatility of Wetlands in the Agricultural Landscape. American Society of Agricultural Engineers, pp. 1-10. Sprecher, S. W. (2000). "Installing Monitoring Wells/Piezometers in Wetlands," ERDC TN-WRAP-00-02, U.S. Army Research and Development Center, Vicksburg, MS. Thomwaite, C.W. and J.R. Mather. The Water Balance. Philadelphia, PA; Drexel Institute of Technology, Climatological Laboratory, Publication No. 8. Thom, B.G. 1967. Coastal and Fluvial Landforms: Horry and Marion Counties, South Carolina. Louisiana State University Coastal Studies Institute. Coastal Studies Series 19, Technical Report 44. Baton Rouge, LA. USDA-SCS. 1984. Soil Survey of Cumberland County, North Carolina. U.S. Army Corps of Engineers. 2001. Regulatory Guidance Letter (RGL) 01-01. Guidance for the Establishment and Maintenance of Compensatory Mitigation Projects under the Corps Regulatory Program Pursuant to Section 404(a) of the Clean Water Act and Section 10 of the Rivers and Harbors Act of 1899. 13 pp. C 33 U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, Natural Resources Conservation Service, U.S. Fish and Wildlife Service, and National Marine Fisheries Service. 1995. Federal Guidance for the Establishment, Use and Operation of Mitigation Banks; Notice. Vol. 60, No. 228. l Opp. Walbridge, M.R. 1993. Functions and values of forested wetlands in the southern United States. Journal of Forestry 91: 15-19. Walton, W.C. 1989. Analytical Groundwater Modeling. Lewis Publishers: Chelsea, Michigan. 173 pp. 34 ?D rnr rn U, TABLE 1: ELEVEN-DIGIT HYDROLOGIC UNITS IN GEOGRAPHIC SERVICE AREA OF BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK (PHASE II)1 03030006010 03030004060 03030006020 03030006090 03030004110 03030004090 03030004070 03030004080 03030004120 03030004100 03030004130 03030004140 03030006030 03030006080 03030006060 03030006040 03030006110 03030006100 03030006050 03030005020 03030006120 03030006130 03030005030 03030006140 03030004150 03030005010 i Based upon standard mitigation guidelines (including those set forth by NCDENR and the NC WRP, the Barra II bank may be suitable for providing compensatory mitigation for wetland impacts occurring anywhere within the same 8-digit hydrologic unit (03030005 - Lower Cape Fear). Therefore, use ofthe Bank for compensatory mitigation will also be considered outside of the 11-digit units listed above upon review and analysis of other mitigation alternatives at the time of permit issuance. TABLE 2. MITIGATION ACREAGE & CREDITS BY SECTION - BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK, PHASE H Replacement Section Mitigation Type Area Mitigation Credit (acre (acres) Credit Ratio credits Nonriverine 1 Pocosin/Carolina Bay 304 1:1 304 Restoration 1 Nonriverine Wetland 152 2:1 76 Enhancement 1 Nonriverine Wetland 660 5:1 132 Preservation 1 Upland Buffer 55 ---- ---- Subtotal 1,171 512 Section 1 Nonriverine 2 Pocosin/Carolina Bay 304 1:1 304 Restoration Nonriverine Pine 2 Flatwoods/Savannah 24 1:1 24 Restoration 2 Upland Buffer 7 ---- ---- Subtotal 335 328 Section 2 Nonriverine 3 Pocosin/Carolina Bay 299 1:1 299 Restoration 3 Upland Buffer 7 ---- Subtotal 306 299 Section 3 TOTAL . 1,812 1,139 TABLE 3: WATER BUDGET - BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK, PHASE H Year Precipitation PETS Seepage Loss (Ezfdtration 4 Change in Storage D Year -1976 Jan-76 3.44 1.01 0.04 2.39 Feb-76 1.29 2.58 -0.04 -1.33 Mar-76 2.82 1.73 0.04 1.05 Apr-76 0.18 1.06 0.04 -0.92 May-76 6.75 4.80 0.04 1.91 Jun-76 3.51 4.86 0.04 -1.39 Jul-76 2.37 5.69 0.04 -3.36 Aug-76 3.66 4.29 0.04 -0.67 Sep-76 2.84 3.82 0.04 -1.02 Oct-76 4.65 1.74 0.04 2.87 Nov-76 4.06 0.94 0.04 3.08 Dec-76 5.00 0.75 0.04 4.21 Annual Totals 40.57 33.28 0.48 6.81 AveraLye Year -1980 Jan-80 3.77 1.13 0.04 2.60 Feb-80 1.77 1.09 0.04 0.64 Mar-80 5.93 2.17 0.04 3.72 Apr-80 3.61 3.06 0.04 0.51 May-80 1.77 4.83 0.04 -3.10 Jun-80 6.16 4.91 0.04 1.21 Jul-80 2.64 3.28 0.04 -0.68 Aug-80 2.46 4.76 0.04 -234 Se 80 7.91 2.74 0.04 5.13 Oct-80 4.99 1.11 0.04 3.84 Nov-80 2.52 0.79 0.04 1.69 Dec-80 2.55 0.65 0.04 1.86 Annual Totals 46.08 30.52 0.48 15.08 Wet Year -1975 Jan-75 5.72 1.57 0.04 4.11 Feb-75 5.45 1.98 0.04 3.43 Mar-75 5.76 3.00 0.04 2.72 Apr-75 2.27 3.51 0.04 -1.28 May-75 3.69 5.65 0.04 -2.00 Jun-75 1.99 5.73 0.04 -3.78 Jul-75 9.08 5.07 0.04 3.97 Aug-75 1.12 5.35 0.04 4.27 Sep-75 10.28 2.89 0.04 7.35 Oct-75 1.52 2.48 0.04 -1.00 Nov-75 2.20 1.67 0.04 0.49 Dec-75 4.70 0.98 004 3.68 Annual Totals 53.78 39.88 0.48 13.42 2 Values obtained from WETS Tables (Cumberland County). 3 Potential evapotranspiration (PET) calculated using temperature-based Thornwaite PET formula (Thornwaite, 1955) 4 Hydrologic conductivity rate of confining layer obtained from Walton (1989). TABLE 4: PLANTING REGIME'- BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK, PHASE II Nonriverine Pine Flatwood/ Community Type Pocosin/ Savannah TOTAL Carolina Bay Stem Target: 435/acre 435/acre Area (acres): (907) (24) (931) SPECIES # planted # planted #planted (Wetland Indicator (% of total) (% of total) Status Atlantic White 39,454 (10) 39,454 Cedar (OBL) Bald Cypress 78,909 (20) 78,909 (OBL) Black Gum 39,454 (10) 1,044 (10) 40,498 (FAC) Pond Pine 78,909 (20) 78,909 (FACW+) Swamp Tupelo 78,909 (20) 78,909 (OBL) Red Bay 78,909 (20) 78,909 (FACW) Longleaf Pine 7,308 (70) 7,308 (FACU+) Water Oak 1,044 (10) 1,044 (FAC) Willow Oak 1,044 (10) 1,044 (FACW-) TOTAL TREES 394,544 10,440 404,984 'Please note that plant material will be ordered at least six months prior to planting from nurseries providing trees/shrubs of local genetic stock. Plant material will be obtained primarily from the NC Forest Tree Seedling Nursery Program (Claridge Nursery in Goldsboro, NC). Other nurseries may include Coastal Plain Nursery (Edenton, NC) and Cill Ide Nursery (Raleigh, NC). If the nurseries fail to deliver the ordered plant material, acceptable replacement plant species characteristic of bay/pocosin wetlands (e.g. loblolly bay, sweet bay, etc.) will be used. TABLE 5. PERFORMANCE AND MONITORING / MAINTENANCE BONDS BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK, PHASE H Section Performance Bond Amount Monitoring / Maintenance Bond Amount 1 $80,000 $50,000 2 $160,000 $100,000 3 $225,000 $120,000 TABLE 6. MITIGATION CREDIT RELEASE SCHEDULE - BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK, PHASE H (SECTION 1) Task Projected Percentage Credits Cumulative Completion of Credits Released Credits Released Date Released (% cumulative 1.0 Signing of the MBI 4/2005 15(15) 76.8 76.8 Amendment 2.0 Completion of all 3/2006 15(30) 76.8 153.6 Restoration Activities 3.0 Monitoring Plan ___ __ ___ e 3.1 Year 1: Fulfill Success 2/2007 10(40) 51.2 204.8 Criteria 3.2 Year 2: Fulfill Success 2/2008 15(55) 76.8 281.6 Criteria 3.3 Year 3: Fulfill Success 2/2009 15(70) 76.8 358.4 Criteria 3.4 Year 4: Fulfill Success 2/2010 10(80) 51.2 409.6 Criteria 3.5 Year 5: Fulfill Success 2/2011 20(100) 102.4 512 Criteria TOTAL 100 512 I ? W rn nu ' " - H011 SCALE I"= 2.4 miles Barra Farms Cape Fear Regional EC®BANK Mitigation Bank, Phase 11 Land Management Group, Inc. Figure 1. Vicinity map. Cumberland County, NC December 2004 Barra Farms I Mitigation Bank PIN -- SCALE I"= 3000' Barra Farms Cape Fear Regional ECOBANK Figure 2. USGS topographic Mitigation Bank, Phase II Land Management Group, Inc. map. Site located within Cumberland County, NC December 2004 the Autryville quad. UWA Categories For 8-Digit Hydrologic Units in North Carolina &EW WATALIGA ^?£+aA'at user Y.v}(-n L _ _ t! •, '01DWAN ?' _ 1 O+C 4;'J7 1.102 mks "`'"t'• - __ '^ 704?: -3C9G2D",' •:aW•^• is ' ti:dC1C? - td?.JxxxJ vADKJN `'xs ROANOKE PASQVOTANK _... ^ i OE a•_ _a:.a>2 TAR-PAMLICO Lim- ax- .. finds Yrd:A '.• _ CATA}4BA ??t -we,?... •..i... r e•ik.: 91 WIILW?t L-1 Ttl . -_:" .%' t_•.._-,. i 03CCF?• •r=02103 _. -. _ rat :le.xa:a- - 70th i1'_G':CJ CY:_1?3 NELrSE • :.?. Yv,bma LIE.. FRE*M BROAD •?xc2c2c'. :. - evt. ?r .1 ?• Ps?tca ., _..,:•,? to i 1 ,3050705 BROAD R- r B-1 CAPE FEAR Lt 203 s: 1 tsv,.:L.e_• woe „1'+ ... W(W10 E020CY`< 0E0+G231 ?lc:u'v--'o4 - " • "t'- _ _L1 -? / SITE LUMBER ;WTEC/1rK i NC River Basin Boundary Lower Cape Fear UWACategones ®?®?®®O? Category 6 - Need'snq Restoration - High Pri®rky c t J Category G - Naedinq Restoration Category H - Watersheds Meeting Goa% ?nCRUdiaiq Those Needing Action to Sustain Water Quaky x4'wa is r Category IR - Having Pr sfine,Sensitive Aquatic Condi'tucns on Lands Adat,ilni,stered by GovernlEnt Category i`J - 'nsutfi:cient Data to Assesw ti ICU a 100 fN' k+ Barra Farms Cape Fear Regional EC®BANK Mitigation Bank, Phase II Land Management Group, Inc. Figure 3. 8-Digit Hydrologic Unit Map. Cumberland County, NC December 2004 Project boundary Barra Farms I Mitigation Bank Barra Farms Cape Fear Regional Mitigation Bank, Phase 11 Cumberland County, NC EC®BANK Lund Management Group, Inc. December 2004 SCALE I"= 3000' Figure 4. 1998 aerial infra-red photograph of the Barra Farms Tract. NC Highway 210 -------------- ---------- LEGEND Existing Soil Roads Existing Collector Ditch (4'-7' deep) Existing Lateral Ditch (2'-4' deep) Drainage Canal (ie. primary ditch) Property Boundary --- Existing Roads ?- Direction of Surface Flow + 1 t, t I T T T Not to kale Barra Farms Cape Fear Regional Mitigation Bank, Phase II Cumberland County, NC EcC®BANK Land Management Croup, Inc. December 2004 Figure 5. Drainage network showing direction of surface flow. SCALE I"= 3000' LEGEND Nora-jurisdictional areas Jurisdictional 404 Wetlands Existing Barra I Mitigation Bank Note: Results of mapping are based on DRAIN MOD studies and site evaluations. Barra Farms Cape Fear Regional Mitigation Bank, Phase II Cumberland County, NC EC®BANK Laud Management Group, Inc. December 2004 Figure 6. Mapped jurisdictional wetlands. LEGEND CC Approved commenced areas that were not completed by January 1, 1995 CC Commence conversion areas completed by January 1, 1995 PC PC Areas (wetlands converted prior to December 23, 1985) SCALE 1" = 3000' EC®BANK Land Management Group, Inc. Figure 7. PC/CC status. Barra Farms Cape Fear Regional Mitigation Bank, Phase 11 Cumberland County, NC December 2004 1 ?j i- J} ??'0' i Barra Farms Cape Fear Regional Mitigation Bank, Phase II Cumberland County, NC Ij r' ? rvb ? ? _ ? A4A EC®BANK Land Management Group, Inc. December 2004 V i SCALE I"= 3000' Figure R. SCS soil survey for Cumberland County. Barra Farms I Mitigation Bank z? ? •? ' } 1's\. ` r? , ? .;? ?? ? ?ti,.'• a ? v ??`.l'?,?-' : ? . i J'? (,, ?. ? / 7?? ?',.. ?,??;-`r J?.-\? .risc.?i ,.?zi? _ 1 - ??'.._?,.??`? ?. /mil / J' ( •? Y `?`+. ?' ate( (r , , ?¢ r y, /\ /? ' a - 10 ( o.r'ir'e nw?.? .. . \.:... a..i? _' r? ?• ?? 1 ' _ 1?Y? (? ? J i:.?Gi is.r..,T, >11 . . ?. h 0303 40 _s 17 Miti gation Bank Service Area Barra Farms Cape Fear Regional Mitigation Bank Legend - ` -1 Service Area IN 0 T CJ Municipality 14-Digit Boundary 11-Digit Boundary _ r - 8-Digit Boundary ?? --? -3" V ° s ?o eats Hydirogralt'hy p x Figure 9 LEGEND PocosinBay restoration (883 acres) PocosinBay Enhancement (215 acres) PocosinBay Preservation (621 acres) Pine Flatwoods/Savannah restoration (24 acres) Remaining Uplands (69 acres) Existing Barra 1 Mitigation Bank NOTE: All restoration areas will be planted with characteristic species at a density of 435 trees/acre (see Table I in mitigation plan) SCALE 1" = 3000' Barra Farms Cape Fear Regional EC®BANK Mitigation Bank, Phase 11 Land Management (croup, Inc. Figure 10. Mitigation plan for site. Cumberland County, NC December 2004 SECTION 3: 306 ac total (Yield = 299 credits) SCALE I" = 3000' ECOBANK Land Management Group, Inc. December 2004 Figure 11. Phase II Bank Sections Barra Farms Cape Fear Regic Mitigation Bank, Phase 11 Cumberland County, NC SECTION 1: 1,171 ac total (Yield = 512 credits) SECTION 2: 335 ac total (Yield = 328 credits) Exi Vertical Scale: I"- 3' Horizontal Scale: I ° , 3' L,ECEND Areas of restored grade (ditch backfill) Berm (12"-18" in height; 2-3' in width) Property Boundary Barra Farms Cape Fear Regional ECOBANK Mitigation Bank, Phase 11 Land Management Croup, Inc. Cumberland County, NC December 2004 SCALE I"= 3000' Figure 12. Grading plan. W* W' W• ?i w w LEGEND Existing Barra I Mitigation Bank W Well station only (reference wells denoted by W*) SCALE 1" = 3000' NOTE: Vegetation plots and wells within restored areas will be located via stratified random sampling at the time of planting. Plots and wells within enhancement and preservation areas will be located in representative sites. Color Designation Habitat Tye Mitigation Type Size (Acres) # of Veg. Plots # of Wells Pocosin/Bay Restoration 908 181 18 Pocosin/Bay Enhancement 153 - 4 Pocosin/Bay Preservation 676 - 3 ® Pine Flatwoods/Savannah Restoration 24 4 2 TOTAL 185 27 Barra Farms Cape Fear Regional EC®BANK Mitigation Bank, Phase II Land Management Group, Inc. Cumberland County, NC December 2004 Figure 13. Monitoring plan. D Drn z 0 x MITIGATION BANKING. INSTRUMENT AGREEMENT TO ESTABLISH THE BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK IN CUMBERLAND COUNTY, NORTH CAROLINA i Prepared for: I Ecosystems Land Mitigation Bank Corporation 6200 Falls of Neuse Rd. Raleigh, NC 27609 i 1555 Howell Branch Road Winter Park, Florida 32789 i Prepared by: I EcoScience Corporation 612 Wade Avenue, Suite 200 Raleigh, North Carolina .27605 EcoScience becernber 1998 MITIGATION BANKING INSTRUMENT AGREEMENT TO ESTABLISH THE BARRA FARMS CAPE FEAR RllGIONAL MITIGATION BANK IN CUMBERLAND COUNTY, NORTH CAROLINA 1=0 RHgAMIBLE This agreement made and entered into on the day of.JW 1991, by Ecosystems Land Mitigation Rank Corporation, hereinafter Sponsor, and the U.S. Army Corps of Engineers (USACE)•, the U.S. Environmental Protection Agency (USEPA), the U. S. Fish and Wildlife Service (USFWS), the North Carolina Wildlife Resources Commission (NCWRC), and the North Carolina Division of `V.*dtor Quality (NCDWQ), hereinafter collectively refers-; to as the Mitigation Bank Review Team (MBRT). The purpose of this Agreement is to establish a mitigation bank designed to provide t - compensatory mitigation for unavoidable wetland and stream impacts authorized by Section ` - 404 Clean Water Act permits or Section 401 Water Quality CartificatiOns in appropriate circumstances. The Sponsor is the record owner of that certain parcel of land containing approximately 623 acres located in Cumberland County, North Carolina described in the Barra Farms Cape Fear Regional Mitigation Bank Stream and Wetlsnd Mitigation Plan (Mitigation Plan). The Mitigation Plan is attached hereto. The Mitigation Plan is hereto revised as described in Exhibit A of this Banking Instrument (Supplemental Appendix to the Mitigation Plan. Response to MRRT Comments and Revisions to the Mitigation Plan). The agencies comprising the MBRT agree that the Bank Site is a suitable mitigation bank site, avid that implementation of the !Mitigation Plan is likely to result in net gains in wetland and stream functions at the Funk Site. Therefore, it is mutually agreed among the parties to this agreement that the fallowing provisions are adopted and will be implemented upon signature of this agreement- Paga 1 of 14 1 MB I f s i 2.0 GENERAL PRO 2.1 Goals: The goal of the mitigation bank is to restore and enhance streams, riverine wetlands, nonrivenne wetlands, and their functions and values. Restoration and enhancement activities are designed to compensate in appropriate circumstances for unavoidable wetland and stream impacts authorized by Clean Water Act permits or Water Quality Certifications in circumstances deemed appropriate by USACE or NCDWQ after consultation with members of the MBRT. 2.2 Additions to the Bank Site; The Sponsor may request the addition of adjacent lands to the Bank Site. Such a request shall be accompe-isd by a Site-Specific Restoration Plan which follows the general format.of the Mitigation Plan and depicts the location and describes the hydraulic interaction between the addition and th's existing Bank Site, In addition, the Site- Specific Restoration Plan shall include specific provisions concerning oredit.ratios, a schedule i" for release of credits, financial assurances, and property disposition.. The MBRT shall review the Site-Specific Restoration Plan, request. additional information if needed, and approveldisapprove the request for addition within 90 days of submittal. In the event.the request for addition is not approved, specific modification suggestions may be provided by the MBRT to the Sponsor. In the event of approval, the additional area shall be deemed a portion of the Bank Site and the contents of this agreement not inconsistent with the approved Site-Specific Restoration flan shall apply to that area: An updated mitigation credit determination will subsequently be submitted which depicts the amount of credit, type of credit, and credit release schedule generated by approved additions to the Bank Site. 2.3 Use of Credits: Use of credits from the Bank to offset wetland and stream impacts authorized by Cleary Water Act permits or Water Quality Certifications must be in compliance with the Clean Water Act and implementing regulations, including but not limited to the 404(b)(1) Guidelines, and the National Environmental Policy Act, and all other applicable Federal and State legislation, rules, regulations, and policies. This agreement has been drafted following the guidelines set forth in the "Federal Guidance forthe Establishment, Use, and Operation of Mitigation Banks," 60 Fed. Rec. 58606, .November 28, 1995 (Guidance). Page 2 of 14 IMB 1 2 2.4 Role of the M613D The MBRT shall be chaired by the representative from USACE, Wilmington District. The MBRT shall review monitoring and accounting reports more fully described in Sections 3.3 and 4.4 below. In addition, the MBRT will review requests for additions to the Bank (Section 2.2), or proposals for remedial actions proposed by the Sponsor, or any of the agencies represented on the MBRT. The MBRT's role and responsibilities are more fully setforth in Sections ii.C. 3 & 6 of the-Guidance. The MBRT will work to reach consensus on its actions. USACE, after any required notice and comment process, shall make all decisions concerning the amount and type of compensatory mitigation to be required for unavoidable, permitted wetland and stream ' impaC~, and whether-or not the use of credits from the R:ink is appropriate to offset those impacts. The parties to this agreement understand that, where practicable, on-site, in-kind (? J compensatory mitigation is preferred, unless use of the Rank is determined by USACE to be t environmentally preferable orit is determined by USACI_ that practicable on-site andlor in-kind mitigation opportunities are not available. 3.0 MiTtCATION PLAN 3.1 General pas -dotion. The Bank Site is composed of approximately 623 acres (ac) of interstream flats, former Carolina Says, and historic stream origins which have been ditched and drained to support agricultural and siivicultural activities. This size offers opportunities for nonriverine wetland, rivedne (riparian) Wetland, and stream restoratian and enhancement. _ j In addition, surrounding areas within the former wetland complex are available for expansion of the Rank Site which can be phased over a period of time. A more detailed description of the baseline conditions on the site is contained in Sections 1.0 through 4.0 of the Mitigation Plan. 3.2 Site Modifications: The Sponsor has completed all work described in Section 6.0 of the l mitigation Plan, Stream repair and ephemeral pool construction has been completed and ditch flaws diverted into the restored floodplain where planned. Ditches have been backfilled and Page 3 of 14 MS 1 3 spoidroadway fill recontoured within the ditch corridors. Soil preparation and planting of characteristic wetland trees has been completed. The purpose of the modifications, and the objective of the Bank., is to re-direct the watershed into 2400 linear feet of historic stream channel; to restore 451 acres of drained former wetlands to riverine and nonriverine wetlands, and to enhance 172 acres of disturbed wetlands (Table 1, copied from Table 10 in the Mitigation Plan), 3.3 Site Monitoring: The Sponsor shall monitor the Bank Site as described in Section 7.0 of the Mitigation Plan- (Monitoring Plan ) and as amended in Exhibit A (Revisions to the (Mitigation Plan). The Bank Site will be monitored for a five year period after implementation is completed or until such time as the MBRT determir_ =-s that the Success Criteria have been met, whichever occurs later. The Sponsor is responsible for assuring the success of the restoration and enhancement activities at the Bank Site, and for the overall operation and management of the bank. The Sponsor shall provide the reports described in Section 7.0 of the Mitigation Plan to each member of the MBRT. 3.4 Contingency: USAGE shall review said reports, and may, at any time, after consultation with the Sponsor and the MBRT, direct the Sponsor to take remedial action at the Bank Site. Remedial action required by USAGE shall be designed to achieve the success criteria specified in Section 7.0 of the Mitigation Plan and Exhibit A. All remedial actions required under this paragraph shall include a schedule, which shall take into account physical and climatic conditions. The Sponsor shall implement any remedial measures required pursuant to the above paragraph. in the event the Sponsor determines that remedial action may be necessary to achieve the required monitoring and maintenance criteria, it shall provide notice of such proposed remedial action to all members of the MBRT. No remedial actions shall be taken without the concurrence of USAGE, in consultation with the MBRT. [Z___ A -,C 1 A ru H (A TABLE 1 MITIGATION CREDIT BARRA FAR?t s CAFE FEAR REGIONAL MITIGATION BANK Mitigation Design Unit Area (acres) Mitigation Credit Ratio' Replacement Credit (acre credits) stream Restoration (2400 linear fleet) 1:1 2400 linear feet Riparian (Riuerinel Wetland 14 1.9:1 7 Restoration Headwater Slope Wetland Restoration 38 1.90 20 (cropland) Headwater Slope Welland 60 41 15 Enhdnoement (forested landl Nonriuerlne Groundwater Fiat Wetland 324. 1.8;1 170 Restoration, (cropland and forested' land within-60 to 100 f.t from ditches) NDridverine Groundwater Flat. Wetland 112 4:1 28 Enhancement (forested land) Upland/Wetland Ecotone Restoration 49 ----? ---? Wetland Drainage Buffers2 26 --- ----Z TOTAL 623 2.8:1 240 1: Mitigation credit ratios denote mitigation acres : impact acres 2: Restoration of upland.ecotones and wetland buffers generates reduced credit ratios for wetiand restoration in the complex, Based'on MBRT discussions, mitigation ratios in restored wetiand areas are reduced to. 1.9 : t to reflect wetiand functional benefits resulting from upland buffers, aootones, and streamside management : Ones (SMZ5l. 4.0 USE OF MITIGATION CREDITS 4.1 Geographic Service Aiea: The Geographic Service Area (GSA) is the designated area wherein a bank can reasnnably be expected to provide appropriate compensation for impacts to similar wetland aridlor other stream or aquatic resources. The, geomorphic setting of the Bank includes rionriverihe flats, nonriverine depressions, and riverine, first order blackwater streams within the Coastal Plain region of the Cape Fear River Basin. The Bank is located in proximity to, or -on the boundary between three hydrophysiographic cataloging units depicted on the "Hydrologic Unit Map - 1374 State of North Carolina", prepared by the U.S, Geological Survey. Cataloging units, located within the inner Coastal Plan region of the river basin, inc:.:de 03030004, 03030006, and 03030008 as depicte in Figure 15 of the Mitigation Plan. These Cataloging Units support similar Coastal Plain-natural communities, wetlands, and drain into the lower Cape Fear River. Therefore, the eastern and western limits of the service area are defined by the outer boundaries of the Cape Fear River Basin contained within the above-listed Cataloging Units. The southem and riorthem boundaries of these river sub-basins have been modified based primarily upon 11 digit watersheds in the region. To the south, watersheds in the Wilmington Area have been excluded due to Karst geomorphology and regional aquifer issues identified by the MBRT. The MBRT has further restricted the service area north of Wilmington due to expected development patterns in the region and the, potential for wetland compensatory mitigation in proximity to these developments. To the north, the service area has been reduced along 11 digit watershed boundaries to exclude Raleigh Belt portions of the Cape Fear basin (Figure 15 of the Mitigation Plani. The service .area is inclusive of the 11 digit watersheds listed in Table 2, Use of the Hank for compensatory mitigation may also be considered outside of the designated Geographic Service Area if this option is preferable to other mitigation alternatives: It is understood that Geographic Service Area expansion will be considered if the area of the Bank is expanded. Page 6 of 14 MBI 6 ?V\ A 2 ELEVEN DIGIT ROL©GICAL TWITS IN BARR.A FARMS CAFE FEAR REGIONAL BANK SERVICE AREA 03030006010 03030004060 03030006020 03030006040 03030004110 03030004040 03030004070 03030004080 03030004120 03030004100 03030064130 03030004140 03030006030 030300060&0 03030006060 03030006040 03030006110 03030006100 03030006060 03030005020 03030006120 03030006130 _ 03030005030 03030006140 03036004150 03030005010 . MA'r 7 4.2 Arnount and Typo of Credit= The Mitigation Plan is intended to resurr in the forms and amounts, in acres, of wetland compensatory mitigation depicted in Table t (copied from Table 10 of the Mitigation-Plan). Successful implementation of the Mitigation Plan will result in the creation of_ 240 riparian (riverine) and nonriverine wetiand mitigation credits, In addition, 2400 linear feet of first order, stream channel credit will be generated (Table 11. It is anticipated by the parties to this Agreement that use of mitigation credits shall be "in- kind"; riparian (riverine) wetland, nonriverine wetland, and first order, stream channel credits will be used to offset riverine wetland, nonriverine wetland, and first order, stream channel impacts. It is anticipated by the parties to this agreement that in most cases in which USACE, after consultation with members of the MBRT, has determined that mitigation credits from the bank may be used to offset wetland and stream impacts authorized by Department of the Army permits, for every acre of impact, one credit will be debited from the Bank. Deviations from the one to one compensation ratio will be based on considerations of value of the wetlands impacted, the severity of the impacts to wetlands, whether this compensatory mitigation is in-kind, and physical proximity of the wetland impacts to the Bank Site. All decisions concerning the appropriateness of using credits from the Bank to offset impacts to waiters and wetlands, as well as all decisions concerning the amount and type of such credits to be used to offset wetland and water impacts authorized by Department of the Army permits, shall be made by USACE,. pursuant to the Clean Water Act. and implementing regulations and guidance, after notice of any proposed use of the Bank to the members of the MBRT, and consultation with the members of the MBRT concerning such use. 4.3 Credit Release Schadule. The credit release schedule for the Bank, as depicted in Table 3, will be based upon successful completion of the following tasks: Page B of 14 ME 1 H 6 H lD TABLE 3 MITIGATION CREDIT HELEASE SCHEDULE BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK Projected Percent of Wetland Cumulative Stream Cumulative Task Completion Credit Allotted Credit Wetland Channel Stream Date f% cmiriulative) Allotted Credo Credit Channel Allotted Allotted Allotted 1.0 Signing of the MBI 1211998 15115) 36 36 --- -- 2.0 Completion of all ' 311998 15(301 36 72 -- --- Restoration Activities 9.0 Monitoring Plan 3,1 Year 1: FulfiJI Success 1111996 10 (401 24• 96 - -- Criteria 3.2 Year 2t Fulfill -Success 4111999 15(65) 36 132 960 960 Criteria 3.3 Year .3: Fulfill Success 11/2000 11151170) 36 168 720 1660 Criteria 3.4 YearA: Fulfill Success 11/2001 10(801 24 192 240 1920 Criteria . , 3.13 Year 9. Fulfill Success 1112002 20 (10UM 48 240 480 2400 Criteria Insufficient data has tmen collected to fulfil success criteria for the Year I AWMR. Therefore, release of stream credit will, begin at the end of Year 2-monitoring as depicted When sufficient data has been collected to evaluate restoration success. r i? J!? i? Task 1: Task. 1 entails acquisition and protection of the Bank site, completion of detailed mitigation planning, review of plan parameters by the MBRT, and signing of the MBI. Protective covenants, easements, and bonds on the property acceptable to the MBRT will also be obtained. Upon completion of Task I, 15% of the wetland Bank credits will be released. r _ Completion of_ Task 1 Is a prerequisite for release of any credits from the Bank, not withstanding completion of other tasks described below. Task 2: Task 2 includes completion of all mitigation implementation activities at the Bank. Stream repair and ephemeral pool construction will be completed and ditch flows diverted into the restored r'.:odplain where planned. Ditches will be backfilled and ::poilfroadway fill will be recontoured within the ditch corridors. Subsequently, soil preparation and planting of characteristic wetland trees will be completed. Documentation will be submitted to the MBRT certifying completion of Task 2. Upon completion of Task 2, 15 OA of the wetland Bank credits will be released (30% cumulative), but no stream credits. i ask 3; Task 3 involves implementation of the monitoring plan and submittal of annual reports to the MBRT for a five year monitoring period, or until success criteria have been fulfilled, whichever period is longer. Stream, hydrology, and vegetation sampling will be completed towards the end of each growing season (between September 1 and October 31), The data will be compiled and success/failure documented within the Bank. The data will be submitted to the MBRT as an Annual Wetland Monitoring Report (AWMR). Upon submittal of the AWMR showing that success criteria are being fulfilled, wetland credits will be released as follows. First AWMR {November 19"58): 10% (40% cumulative) Second AWMR (November 1599): 15% (55% cumulative) Third AWMR (November 2000): 15% (70% cumulative) Fourth AWMR (November 2001): 10% (80% cumulative). Fifth AWMR (November 270021; 20% (100% cumulative) Page 10 of 14 MHz 10 ? - e Credit releases for Task 3 will only occur if success criteria are fulfilled as stipulated in the Mitigation Plan and Exhibit A. Stream credit release will begin at the and of the second year of monitoring, assuming all success criteria are met. The released credits will be cumulative to total 40% of the available straan credit at the en-d of the Second AWMR and corresponding to the percent of wetland credit released in years 3,4, and 6 (Table 3), If wetland or-stream recovery for the applicable year is delayed (i.e. lacking wstland plants, in= stream aquatic fauna, or hydrology), the credit will be reserved for release upon submittal of a subsequent report which verifies restoration success. The final credit allotment will be released upon completion of the fifth AWMR, fulfillment of success criteria, and provisions for dispensation/for:. term management of the property acceptable to,the MBRT. ECOBANK reserves the right to request an expedited release of credits if wetland restoration success is apparent over a period of time, and success criteria are met and exceeded. 4.4 Accomdria Pmeadgraw - The. Sponsor shall develop accounting procedures for maintaining accurate records of debits made from the.Bank, acceptable to the MBRT. Such procedures shall include the generation of a report by the Sponsor showing-credits used at the time they are debited from the Bank, which the Sponsor shall provide within 30 days of the debit to each member of the MBRT. In addition, the Sponsor shall prepare an annual report on each anniversary of the date of execution of thin agreement, showing all credits used, and the balance of credits remaining, to each member of the MBRT, until such time as all of the credits have been utilized, Dr. this agreement is otherwise terminated. All reports will identify credits debited and remaining by type of credit (e.g., nonriverine forested watland), and shall -include for each reported debit the USAGE Action 10 slumber for the permit for which the credits were used, Exhibit B comprises a sample master credit ledger which will be used to track and report Bank debits. 5.0 PROPERTY OtSPOSMON Ownership of the Sank will reside with the Sponsor who intends to provide fee simple transfer of the property to the appropriate land tmanagament-organization-as deterrninsd 11y - the MBRT. Fee simple transfer will occur upon completion of debiting of the Bank or the and Page 11 of 14 NCI of the monitoring period, whichever is longer. The transferee will be responsible for maintaining the Bank in accordance with a Conservation Easement placed on the Bank Site for perpetual protection as described in Section 8.0 of the Mitigation Plan. 6.0 FINANCIAL ASSURANCES 6.1 Monitoring and Maintenance Bonds: The Sponsor is responsible for securing adequate construction, monitoring, and maintenance bonds as a form of financial assurance to cover contingency actions in the event of Bank default or failure. Construction and implementation activities at the Bank Site were completed in January 1998; therefore, construction bonds are no longer necc-7ary. However, monitoring and maintenance bonds ha;•^ been obtained to ensure monitoring for a five year period and to ensure that contingency actions are implemented in the event of wetland or stream restoration failure. Financial Assurance Documents in the form of Monitoring and Maintenance Bonds are included as Exhibit C. 6.2 Management`Trust Fund A separate, long-term trust fund will be provided by the Sponsor for long-term maintenance, management, and remedial actions acceptable to the iVIBRT. The trust fund will be established upon completion of debiting of the Bank or at the end of the monitoring period, which ever is longer. 7.0 MISCELLANEOUS This agreement may be amended with the written consent of all the parties: Notices, requests, and required reports shall be sent by regular mail to each of the parties at their respective addresses provided below: Sponsor: Alan G. Fickett, Ph.D. Ecosystems Land Mitigation Bank Corporation 1555 Howell Branch Road Winter Park, Florida 32789 Page 12 of 14 MBI 12 USACE: Scott McLendon U. S. Army Corps of Engineers Post Office Box 1890 Wilmington, NC 27889-1000 USEPA: Kathy Matthews Environmental Protection Agency Atlanta Federal Center 61 Forsythe St. Atlanta, GA 30303 USFWS: Kevin Moody L-1. S. Fish and Wildlife Service P.O. Box 3326 Raleigh, NC 27636 NCWRC: Bennett Wynne North Carolina Wildlife Resources Commission 901 Laroque Ave. Kinston, NC 28501 NCDWQ: Mac Haupt North Carolina Division of Water Quality P.O. Box 29535 Raleigh, NC 27626-0535 I k-- Page 13 of 14 MBI 13 IN WITNESS WHEREOF, the parties hereto have executed this Agreement for the Barra Farms Cape Fear Regional Mitigation Bank. (See Attached Page 14c) Col. T rry R. Y n Bluth William L. Cox Wilm" gton Dis ict Engineer Chief, Wetland Section, Wetlands U. S. Army Co ps of Engineers Coastal, and Water Quality Grants Branch, Water Management Division U.S. Environmental Protection Agency (See AttachedPage 14a) John M. Hefner Ecological Services Supervisor U.S. Fish and Wildlife Service (See Attached Page 14b) Frank McBride Director North Carolina Wildlife Resource Commission (See Attached Page 14d) Preston Howard, Jr., P.E. Director North Carolina Division of Water Quality & It" Miller McCarthy President Ecosystems Land Mitigation Bank Corporation Alan G. Fickett Secretary Ecosystems Land Mitigation Bank Corporation (Corporate Sea[) Page 14 of 14 IN WITNESS WHEREOF, the parties hereto have executed this Agreement for the Barra Farms Gape Fear Regional Mitigation Bank. Z' 22_ John M. Hef er Ecological ervices Supervisor U.S_ Fish and Wildlife Service Page 14a IN WITNESS WHEREOF, the parties hereto have executed this Agreement for the Barra Farms Cape Fear Regional Mitigation Bank (t - Frank McBride DiFeetor t'c w` ACt-?cL8C? North Carolinaldlife Resources Commission Page 14b ?r IN WITNESS WHEREOF, the parties hereto have executed this Agreement for the Barra Farms Cape Fear Regional Mitigation Bank. tlI m L. Cox Chief, Wetlands Section, Wetlands, Coastal, and Water Quality Grants Branch, Water Management Division U. S. Environmental Protection Agency t- l Page 14c IN WITNESS WHEREOF, the parties hereto have executed this Agreement for the Barra Farms Cape Fear Regional Mitigation Bank. A. Preston Howard, Jr., P.E. Director North Carolina Division of Water Quality (t Page 14d D co rn z 0 x ir. i ANNUAL WETLAND MONITORING REPORT (YEAR 5) BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK CUMBERLAND COUNTY, NORTH CAROLINA Prepared for: Ecosystems Land Mitigation Bank Corporation 1555 Howell Branch Road Winter Park, Florida 32789 (407) 629-7774 Prepared by: Land Management Group, Inc. P.O. Box 2522 Wilmington, North Carolina. 28402 (910) 452-0001 November 2002 TABLE OF CONTENTS LIST OF FIGURES AND TABLES .........................................................................................ii 1.0 INTRODUCTION ................:..............................................................................................1 2.0 HYDROLOGY MONITORING ........................................................................................ 4 2.1 Monitoring Program ....................................................................:...........................4 2.2 Monitoring Results ..................................................................................................6 Groundwater Flats (GI) ..................................................................................... 6 Riverine Hoodplains (RF) .................................................................................. 7 Headwater Slopes (HS) ....................................................................................... 8 2.3 Evaluation of Success Criteria ................................................................................ 8 3.0 VEGETATION MONITORING ................................................................................12 3.1 Monitoring Program ..........................................................................................:...12 3.2 Monitoring Results ...............................................................................................13 Herbaceous Vegetation .....................................................................................13 Groundwater Flats ............................................................................................13 Headwater Slope ...............................................................................................13 3.3 Evaluation of Success Criteria ..............................................................................14 4.0 WETLAND FUNCTIONAL ATTRIBUTES AND MITIGATION CREDIT ........... 18 4.1 Pre-Restoration Conditions (January 1997 to November 1997) .................. ....... 18 4.2 Wetland Construction Activities (November 1997 to January 1998) ..................18 4.3 Post-Restoration Conditions (January 1998 to November 1998) ......................... 18 4.4 Post-Restoration Conditions (October 1998 to October 1999) ............................20 4.5 Post-Restoration Conditions (October 1999 to October 2000) ............................ 21 4.6 Post-Restoration Conditions (October 2000 to October 2001) ...........:................ 22 4.7 Post-Restoration Conditions (October 2001 to October 2002) ............................ 22 5.0 SUMMARY ................................................................................................................. 24 6.0 REFERENCES ................................................................................... 25 7.0 APPENDICES Appendix A: Mitigation Credit Release Schedule Appendix B: Wetland Hydrology Data and Hydrographs for 2002 Appendix C: Wetland Vegetation Data for 2002 Appendix D: Summary of Hydrology and Vegetation Data (1999-2002) Appendix E: Summary of Monitoring Plan Appendix F: Photographs of Barra Farms Appendix G: Heterogeneity in Soil and Vegetation Properties of a Restored Carolina Bay Wetland LIST OF FIGURES Figure 1. Vicinity map ................................................................................................................ 3 Figure 2. Location of vegetation plots and wells ......................................................................... 5 LIST OF TABLES Table 1. Summary of hydrology monitoring data ......................................................................10 Table 2. Woody species found in groundwater flats habitat .......................................................16 Table 3. Woody species found in headwater slope habitat ....:....:...............................................17 ii ANNUAL WETLAND MONITORING REPORT (YEAR 5) BARRA FARMS CAPE FEAR REGIONAL MITIGATION BANK CUMBERLAND COUNTY, NORTH CAROLINA 1.0 INTRODUCTION ECOBANK, a private sector mitigation banking company, has established the Barra Farms Cape Fear Regional Mitigation Bank (the Bank) within the Coastal Plain region of the Cape Fear River Basin. The Bank comprises 623 acres located along upper reaches of Harrison Creek in Cumberland County (Figure 1). Wetland restorationlenhancement activities were completed in the winter of 1997-1998 as described in the detailed mitigation plan. A mitigation banking instrument has also been prepared through ongoing coordination with the mitigation banking review team (MBRT) as outlined in the Federal Guidance on the Establishment, Use, and Operation of Mitigation Banks (60 FR 12286-12293, 1995). Hydrological and vegetation monitoring are important components of a successful mitigation plan and are required for release of compensatory mitigation credits. The Barra Farms monitoring plan requires annual monitoring for a five-year period and analysis of the data to evaluate success in the establishment and maintenance of diagnostic wetland parameters. The mitigation credit schedule and monitoring plan are attached for reference in Appendices A and E. This document represents the Annual Wetland Monitoring Report (AWMR) for Year 5 of the monitoring plan. Monitoring was performed during the 2002 growing season for hydrology and vegetation, consisting primarily of a comparison between hydrology model predictions, reference wetlands, and wetland restoration areas in the Bank. Subsequently, the success criteria are analyzed and verified to facilitate issuance of mitigation credit designated in the MBI at the end of Year 5 monitoring. J. In the beginning of the restoration process at the Bank, extremes in weather made achieving success criteria difficult. Heavy rainfall in the winter/spring of 1998 and in the fall of 1999 created ponding over much of the site and contributed to seedling mortality. As expected, Year 2 monitoring performed in the fall of 1999 revealed low seedling survivability, and subsequent contingency measures were employed to increase survivorship. Six drainage pipes were installed to alleviate ponding and over 40,000 seedlings were planted in the winter of 2000 to increase species abundance and achieve success criteria. Because of these measures and subsequent achievement of success criteria in 2000, Year 2, 3, and 4 credits were released and the Bank is on schedule for release of Year 5 credits. Year 5 hydrologic monitoring at the Bank has been occurring throughout the year, with regular checks of manual and automated wells within the Bank and adjacent reference areas. Vegetation monitoring was conducted in October of 2002 and consisted of identifying woody and herbaceous species within 344 plots that are each 0.1-acre in size. After compiling and analyzing the data, it has been determined that the hydrology and vegetation success criteria identified in the mitigation plan have been achieved. This will be the final monitoring report for the Barra Farms Mitigation Bank. :? 2 Barra Farms Cape Fear Regional Mitigation Bank ECOBANK Figure 1. Vicinity Map Cumberland County, NC Land Management Group, Inc. 2.0 HYDROLOGY MONITORING 2.1 Monitoring Program Twenty three surficial monitoring wells (manual recording) were located throughout the Barra Mitigation Bank to provide representative coverage and flow gradients extending through each of the four physiographic landscape areas: 1) uplands; 2) groundwater flats; 3) headwater slope; and 4) riverine floodplain. Figure 2 depicts the approximate location of monitoring wells in the Bank. In addition, five automated recording wells were placed on site to provide continuous data that can be extrapolated to manual recording devices. Monitoring wells were installed and downloaded by a subcontractor in accordance with specifications in U.S. Corps of Engineers' Installing Monitoring Wells / Piezometers in Wetlands (WRP Technical Note HY-IA 3.1, August 1993). The manual monitoring wells are-set to a depth of approximately 24 inches below the soil surface and had bentonite . plugs to prevent surface flow introduction. Five manual monitoring wells and two automated recording wells were placed in reference wetlands to compare hydrology between the Bank and relatively undisturbed wetlands in the region. Four wells (3 manual and 1 automated) were located in the reference groundwater flats along the northwestern periphery of the Bank. Three additional wells (2 manual and 1 automated) were located in the reference riverine wetland along Colly Creek in the Bushy Lake/Horse Shoe Lake Natural Area. These wells provided comparative annual hydroperiods within the organic soil flat and riverine floodplain physiographic areas of the site. The headwater slope physiographic area was interpolated from the two adjacent systems as described in the mitigation plan and the MBI. Hydrological data continue to be collected at weekly intervals on site and within the reference sites. The data extending from March 17, 2002 (1s reading within the growing season) to September 28, 2002 (last reading prior to submission of this report) have been utilized is this Year 5 monitoring report. 4 OOQ5 0 0 0 ll W LU N Room I P4 0 ? U PT- d U ? w U 0 5 0 0 ?n 0 0 U O Q? T3 1-44 cl, 0 Pt N 0 w 0 C'7 m a 2.2 Monitoring Results The raw well data are depicted in hydro graph and tabular format in Appendix B. Wetland hydrology criteria in number of consecutive days and percent of the growing season are also summarized in Table 1. Dine intersection at 12 inches below the surface was used as the cut off for wetland hydrology, following the regulatory wetland criterion requiring saturation (free water) within one foot of the soil surface. As in previous years, groundwater levels were highest in early spring, followed by dry periods during summer months. Well data have been subdivided into three wetland physiographic wetland types: 1) groundwater flats (G F); 2) headwater slopes (HS); and 3) riverine floodplains (RF). Groundwater Flats (GF) Three wells located within reference groundwater flats provided a general indication of the average 2002 hydroperiod on groundwater flats supporting steady state forest structure and organic soils. Data indicated that the reference groundwater flats habitat maintained wetland hydrology during 15.1% of the growing season. The automated reference well located within this same reference area was not functioning for most of the growing season and did not document wetland hydrology (Appendix B). The groundwater flats data from the restoration wetland area had an average wetland hydrology of 14.3% of the growing season and ranged from 9.2 to 15.1% (Table 1). Year 1 and Year 2 monitoring indicated that the wetland hydrology within this habitat correlated with vegetation cover and soil organic matter content, with the wettest hydrology in areas of high organic matter and low vegetation cover and the driest hydrology in areas with mineral soil flats. Year 5 results are similar to Years 3 and 4 in that there was no significant difference between the average hydrology of former farmland and pocosin vegetation, or between that of mineral soil flats and organic soil flats. This is likely because as more vegetation becomes established within the bank, causing evapotranspiration, hydrological differences between these areas are diminished. None of the automated monitoring wells located within groundwater flats habitat at the Bank (wells A, B, and E; Figure 2) documented wetland hydrology (Appendix B). All of these wells did not read during the early part of the growing season, and may have confirmed wetland hydrology had data been collected throughout this time period. According to data from the manual wells, the early part of the growing season in 2002 was the most likely time for wetland hydrology to be demonstrated due to below normal rainfall during the summer months (Please see section 2.3 for more information on automated well problems.) Riverine Floodplains (RF) Two manual wells are located in reference riverine floodplain habitat. The data from these wells indicated that the average wetland hydrology for small stream swamps was approximately 18.0% of the growing season. The two reference hydrology wells had the same number of consecutive saturation days and therefore no difference in hydrology due to proximity of well to stream channel was noted. The automated well located in the reference riverine floodplain habitat documented wetland hydrology for 11% of the growing season (26 continuous days; see Appendix B). Data from the two manual wells located in the restoration riverine floodplain habitat showed that wetland hydrology averaged 13.6% of the growing season. Headwater Slopes (HS) Reference wetland hydrology for the headwater slope habitat was simulated by averaging wetland hydrology exhibited by adjacent riverine floodplain and groundwater flats. The average amount of time the reference headwater slope habitat met wetland hydrology was 16.3% of the growing season and ranged from 15.1 % (groundwater flats) to 18.0% 7 (riverine floodplain). Headwater slope in the restoration wetlands supported wetland hydrology averaging 13.3% of the growing season, and ranged from 12.1% to 15.1%. Hydrology did not appear to be influenced by landscape position within the headwater storage area or vegetation cover. The automated monitoring wells located within the headwater slope habitat are wells C and D (Figure 2). Well C was only functioning for approximately one month (mid-June to mid-July) during 2002 and did not document wetland hydrology during this period. (Please see section 2.3 for more information on automated well problems.) Well D documented wetland hydrology for 71 continuous days, between mid-March until the end of May. 2.3 Evaluation of Success Criteria Success in the restoration of wetland hydrology in the Bank required saturation (free water) within one foot of the soil surface for at least 50% of the time the reference habitat achieved wetland hydrology. This criterion was applied separately to each of the restored habitats. The reference groundwater flats, riverine floodplain, and headwater slope habitats exhibited wetland hydrology for a period averaging 15.1%, 16.3%, and 18.0%, respectively. In the Bank, restoration wetlands supported wetland hydrology averaging 14.3% (94.7% of reference), 13.6% (75.6% of reference), and 13.3% (81.6% of reference), respectively. Therefore, all three habitat types fulfilled the wetland hydrology criterion in 2002. Automated wells are dependable and accurate ways of recording hydrology. It should be noted, however, that in 2041 and 2002 it became increasingly difficult to keep the automated wells at the Bank functioning continuously because of black bears in the area. They use these wells as scratching posts and often chew the caps off of the tops of the wells. A subcontractor reads both the manual and automated wells frequently and repairs any problems promptly. However, gaps in the data have occurred. Most of the gaps that have occurred in data at the Bank are due to natural circumstances that actually demonstrate that the mitigation site is providing habitat for wildlife. 9 _ rnnnn Aata af- flies Rank 1aule 1. 0 Well Number vt /-VV- y..y?v Maximum Consecutive Saturation Days. E'J Percent of Growing Season (Saturat'n Daps/239) Comments Groundwater Flats Restored Wetland WI 36 15.1 former farmland (FF) W2 36 15.1 FF W4 36 15.1 FF W5 36 15.1 FF, mineral soil flat W6 36 15.1 FF, mineral soil flat W7 36 15.1 FF W10 36 15.1 FF WI1 36 15.1 FF W12 36 15.1 FF, mineral soil flat W14 29 12.1 FF, mineral soil flat W17 36 15.1 FF, located on fill material in back8lied ditch W20 29 12.1 FF W21 36 15.1 Existing pocosin vegetation (PV), end organic soil flat (targeted swamp forest community) W22 36 15.1 PV W23 22 9.2 PV Average 34.1 14.3 Range: 9.2-15.1% Reference Wetland JBI 36 15.1 Existing forest vegetation (FV), mineral soils JB2 36. 15.1 FV, organic soils JB3 36 IS.I FV, organic soils Average 36 15.1 Range: none 10 m , t _ 1 'kTTAV^In(TTT mnnltnri-ncr (iatn. st he Ban 1 aDIC 1 C O.ULMUG WeltNumber U. L3 S t iuwa y vi c vv?. Maximum Consecutive Saturation Days ai7.,y. Percent of Growing Season (Saturat'n Days/239) Comments 77 Riverine Floodplain Restored Wetland W15 29 12.1 existing forest vegetation (FV), upstream each, outer floodplain W18 36 15.1 FV, downstream terminus, inner floodplain Average 32.5 13.6 Range: 12.1-15.1% Reference Wetland SSI 43 18.0 FV, outer floodplain SS2 43 18.0 FV, inner floodplain Average 43 T _L8-0 Range: none _ Headwater Slope Restored Wetland W3 36 15.1 Former farmland (FF), upper reaches W8 29 12.1 FV, interior slope W9 36 15.1 FF, interior slope w16 29 12.1 FV, interior slope W19 29 12.1 existing pocosin vegetation (PV), upper reaches Average 31.8 133 Range: 12.1-15.1% Reference hydroperiod* 38.8 16.3 Average of riverine and groundwater flats The reference hydroperiod for the headwater- slope physiographic area is calculated as the average hydroperiod exhibited by both the groundwater and riverine floodpiain reference wells. 1 3.0 VEGETATION MONITORING 3.1 Monitoring Program Quantitative sampling of vegetation was conducted in October of 2002 and was similar to the sampling performed in previous years. Thirty-four plots that were each 0.1-acre in size were sampled resulting in 3.4 total acres of former cropland being surveyed (Figure 2). The center of each plot has been permanently established with a labeled, white polyvinyl chloride (PVC) pipe marked with orange flagging. The coordinates of each of these plot centers has been identified with a global positioning system (GPS) unit. Plot centers are located within two community types at the Bank: groundwater flats habitat, which represents 324 acres, and headwater slope habitat, which comprises approximately 39 acres. No plots are located within the riverine habitat since none of this habitat type was formerly cropland. Twenty-nine plots are located within the groundwater flats and 5 plots are located within the headwater slope. At each plot center, woody species within a 37.2-foot radius of the plot center were flagged, identified, and measured for height. Diameter at breast height (DBIT) measurements equal to or greater than one inch were also recorded. In most cases, clumps of multiple black willow (Salix nigra) stems originating from a common root source were counted as a single stem_ Although differences between the two 1Vyssa species that were planted (Nyssa biflora and Nyssa aquadca) are beginning to appear, such as leaf size and serrations, we continued to group them into one category because these differences were still difficult to distinguish in many trees. Herbaceous vegetation at each plot was recorded and assigned to one of seven cover classes: 1 = 0-0.5%, 2 = 0.5-1%, 3 =1-3%, 4 = 3-15%, 5 =15-33%, 6 = 33-66%, 7 = 66- 99%. Cover classes for all species were determined by visually estimating the area of ground surface covered by its vertical projection. 12 3.2 Monitoring Results Herbaceous Vegetation During year 5 monitoring, a total of 25 herbaceous species were identified within the 34 sample plots (Appendix Q. As in previous years, the most common were woolgrass (Scirpus cyperinus), goldenrod (Solidago spp.) and broomsedge (Andropogon virginicus). The headwater slope and wetter groundwater flats plots, located within the center of the site, contained dense stands of woolgrass. The drier plots, located at the western and eastern ends of the site, supported more aster, goldenrod, and panic grass. Broomsedge was found throughout the Bank in areas not exceptionally wet or dry. Groundwater Flats r -. Within the groundwater flats habitat, 28 woody species were surveyed among the 29 plots. Of the 28 species, 21 were tree species and 7 were shrub species. Of the tree species, 14 were planted and 7 were volunteer. All shrubs were volunteer. As in previous years, the most common tree species included red maple (Acer rubrum), bald cypress (Taxodium distichum), swamp tupelo and/or water tupelo (Nyssa biflora, N. aquatica), and black willow (Sal ix nigra). The vegetation observed within groundwater flats averaged 972.8 trees/acre with approximately 233.4 trees/acre from planted species. When using the number of trees/acre by species that can be applied to the trees/acre criterion (s 20% of 320 trees/acre for hardwoods and < 10% of 320 treesiacre for softwoods), the total number of trees that can be counted per acre was 372.9 (see Table 3, column 5). Headwater Slope A total of 14 woody species was identified within this habitat, of which 8 were planted and 6 were volunteer. The most common tree species included red maple (Acer rubrum), black 13 willow (Salix nigra), and swamp tupelo and/or water tupelo (Nyssa bflora, N. aquatica). Density averaged 1848.0 trees/acre, with 286.0 trees/acre resulting from planted species. When success criteria percentages were used (_< 20% of 320 trees/acre for hardwoods and 10% of 320 trees/acre for softwoods), the total number of trees that can be counted per acre was 384.0 (see Table 4, column 5). 3.3 Evaluation of Success Criteria Success criteria for the Barra Farms Mitigation Plan included a minimum mean density of 320 characteristic trees/acre. At least five character tree species must be present, and no hardwood species can comprise more than 20 percent of the 320 stems/acre (64 stems). Softwood species cannot comprise more than 10 percent of the 320 stems/acre (32 stems). As in Year 4, several plots within both the groundwater flats habitat (P7, P14, P32, and P35) and the headwater slope habitat (P8) contained an abundance of red maple stems, which elevated the average number of maple stems well above 20% of the total number of stems. These plots are located near the forest edge, where the seedlings are growing opportunistically in areas of open sunlight. The effect that these seedlings may have on planted species was evaluated by comparing vegetation data in 2000, 2001, and 2002, specifically the number of trees observed in each plot and the average height of each species in all three years (Appendix D). As was shown from a similar analysis in the Year 4 Monitoring Report that compared 2000 and 2001 data, it was determined that although a few plots continue to support large amounts of maple, this species is not inhibiting the number or height of planted species. In fact, the average height of most planted species within these plots continues to increase. Observations made in plots that support many maple seedlings demonstrate that they are growing in place of herbaceous vegetation and are having no greater effect on planted trees than any other herbaceous species. Furthermore, research has shown that red maple is a typical component of early successional forest regeneration of a bay forest community type (Sharitz and Gibbons, 1982). 14 When evaluating the success criteria, only 20% of the 320 trees/acre criterion (64 stems) was used for maple or any other hardwood that exceeded this value. Only 10% of the 320 trees/acre criterion was used for softwood species. Tables 2 and 3 show the number of trees/acre by species that can be applied to the trees/acre criterion. For groundwater flats, a mean density of 972.8 trees/acre was found across 21 character wetland tree species, with an average of 8.6 tree species/plot. An average of 372.9 trees/acre cant be applied to the vegetation success criterion. In the headwater slope habitat, a mean density of 1848.0 trees/acre was found across 14 wetland tree species, with an average of 8.4 tree species/plot. An average of 3 84.0 trees/acre in this habitat can be applied to the vegetation success criterion. Therefore, both of these wetland community types meet the vegetation success criteria. 15 Table 2. Woody species found in groundwater flats habitat, average number of trees/acre, and the number oftrees alInaaetl in err"r"ace eriteria_ C_ ommon name Scientific Dame Avg # of trees/ acre % of total # of trees/ac # trees/ac allowed in criteria Comments Red Maple Acer rubrum 519.7 53.4 64 Volunteer hardwood, three plots had many seedlings (see Appendix D) Winged Sumac Rhus copallina 117.6 12.1 32 Volunteer softwood, mostly from 2 plots Bald Cypress Taxodium distichum 88.3 9.1 64 Piantedhardwood Black Willow ,SaIN nigra 66.6 6.8 32 Volunteer softwood Swamp/ Water Tupelo Nyssa spp. 65.9 6.8 65.9 Planted hardwood Overcup Oak Quercus lyrata 24.5 2.5 24.5 Planted hardwood Wi71ow Oak Quercus phellos 17.8 1.8 17.8 Plantedhardwood Sweetgum Liquidambar styraciflua 15.2 1.6 15.2 Volunteer hardwood Atlantic V/hite Cedar Chamaecyparis thymdes 14.1 1.4 14.1 Planted Loblolly Pine Rni s taeda 10.3 1.1 10.3 Volunteer softwood Red Bay Persea borbonla 9.3 1.0 9.3 Volunteer softwood Swamp Chestnut Oak Quercus michazWi 5.2 0.5 5.2 Planted hardwood Green Ash Fraxinus pennsylvanica 3.8 0.4 3.8 Planted hardwood Longleaf Pine Phw palustris 3.8 0.4 3.8 Planted softwood Pond Cypress Taxodium ascenders 3.8 0.4 3.8 Planted hardwood Tulip Poplar Liriodendron tulipifera 3.1 0.3 3.1 Planted hardwood Pond Pine Ph= serotina 1.4 0.1 1.4 Planted softwood Swamp Cottonwood Populus heterophylla 1.0 0.1 1.0 Volunteer hardwood Water Oak Quercus nigra 1.0 0.1 1.0 Planted hardwood Eastern Sycamore Platanus occidentalis 0.7 0.1 0.7 Planted hardwood TOTAL 972.8 100 3729 16 Table 3_ Woody species found in headwater slope habitat, average number of treeslacre, and the number of 4 ciCr3 EtL[Ei W v(2 itt .?c.cvwu Common name u v Scientific Dame Average # of trees/ acre % of total # of trees/ac . % of total/ at allowed in criteria Comments Red Maple Acer rubrum 1316.0 71.2 64 Volunteer hardwood; one plot had many seedlings (see Appendix D) Black Willow Salix n1gra 218.0 11.8 32 Volunteer softwood swamp/water Tupelo My= spp. 154.0 83 128 Plantedhardwood Bald Cypress Taxodium distichum 52.0 2.8 52 Plantedhardwood Overcup Oak Quercus lyrata 28.0 1.5 28 Planted hardwood LoblollyPine Pinus taeda 22.0 12 22 Volunteer softwood Green Ash Fraxinus penns*anica 18.0 1.0 18 Planted hardwood Atlantic White Cedar Chamaecyparis thyoides 12.0 0.6 12 Planted hardwood Swamp Cottonwood Populus heterophylla 8.0 0.4 8 Volunteer hardwood Willow Oak Quercusphellos 8.0 0.4 8 Plantedhardwood Eastern, Sycamore Platanusoccidentalis 4.0 0.2 4 Plantedhardwood Sweetgum Liquidambarstyracrflua 4.0 0.2 4 Vofinteerhardwood Pond Cypress Taxodiumaseendens 2.0 0.1 2 Plantedsoftwood Winged Sumac Rhus copallina 2.0 0.1 2 Volunteer softwood TOTAL 1848 100 384 17 4.0 WETLAND FUNCTIONAL ATTRIBUTES AND MITIGATION CREDIT (Information taken from previous monitoring reports written by EcoScience and Land Management Group, Inc.) 4.1 Pre-Restoration Conditions (January 1997 to November 1997) The 623-acre Bank is located on lower portions of a broad coastal plain interstream divide, which includes the historic origin of Harrison Creek. Adjacent flats and ridges comprise a watershed encompassing approximately 9.8 square miles of land with groundwater and surface water discharging from these flats and terraces towards the Bank. A majority of the Bank was cleared, ditched and drained in the last 30 years with wetlands and streams effectively eliminated. The drainage network included approximately 100,000 linear feet of ditches and canals. The drainage area that historically flowed through the Bank was diverted into constructed canals, which bypassed Harrison Creep and the riverme wetland corridor. Drainage networks effectively eliminated stream and wetland functional attributes in the Bank. 4.2 Wetland Construction Activities (November 1997 to January 1998) Restoration activities included placement of impervious plugs and backfilling of all ditches and canals in the Bank. Former canal flows from the upper watershed were diverted into the headwater slope physiographic area of the Bank through construction of ephemeral or intermittent drainage ways. The headwater slope and former floodplam were reconnected through berm removal and cleaning of the relict stream channel. Soil surfaces on former cropland were scarified to increase microtopography and surface water storage. Subsequently, the site was planted with 192,000 diagnostic tree seedlings as detailed in the mitigation plan. 4.3 Post-Restoration Conditions (January 1998 to November 1998) In February 1998, surface water from the upper watershed inundated the entire Bank. Depth of water generally ranged from saturation to elevations approximately 4 feet above the soil surface. Due to the extent of inundation and flow velocities, two canal 18 plugs in northern reaches of the Bank were blown out during this period and subsequently reconstructed to prevent overtopping by surface water. Significant stream flows of greater than 20 cubic feet per second were initiated in the headwater slope and riverine floodplain physiographic areas of the Bank during the early spring of 1998. Inundation and influent surface waters generally continued from February through June 1998. Blooms of algae and large populations of amphibians and fish developed within the Bank. Characteristic species associated with aquatic wetland habitats included sunfish (Lepomis sp.), lesser siren (Siren interrnedia), southern cricket frog (Acris gryllus), grey treefrog (Hyla chrysoscelis), green treefrog (Hyla cinerea), spring peeper (Pseudacris crucifer), pine woods treefrog (Hyla femoralis), snapping turtle (Chelydra serpentina), spotted turtle (Clemmys guttata), and water snake (Heradia sp.). Fish populations became stranded in isolated pools during the summer and attracted a large population of wetland dependent avifauna to the Bank. On 9 July 1998, over 1000 coastal birds were observed feeding in desiccating pools, including great egret (Casmerodius album), cattle egret (Bubulcus ibis), great blue heron (4rdea herodias), green heron (Butorides striatus), wood duck (Aix sponsa), mallard (Antis platyrhynchos), red-tailed hawk (Buteo jamaicensis), belted kingfisher (Megaceryle alcyon), and merlin (Falco columbarius). Black bear (Ursus americanus) also frequent protected portions of the Bank. In late June 1998, rapid groundwater draw-down occurred during a period of negligible rainfall. During this period, wetland hydrological patterns were similar in the Bank and in the reference wetland sites. Drought conditions caused strearn flows to cease at the Bank and within the reference stream reach. However, isolated pools and i termittent storm flows persisted through the stream reaches during the late summer months. Water tables generally remained over two feet below the soil surface in the Bank and reference until 9 September 1998. Surface flows from the upper watershed have (J subsequently re-inundated portions of the Banks in September. 19 Wetland vegetation began to colonize the site after inundation ceased in late June. Characteristic hydrophytic species include panicum grasses, sedges, cat tail, seedbox, knotweed, Ludwigia, and wool grass. In wetland restoration areas, planted trees exhibited, on average, an 83% survival rate. Survival rates were highest among seedlings that supported well developed above-ground stems extending more than 3 feet above the soil surface (primary bald cypress, swamp tupelo, water tupelo, and oak species). Atlantic white cedar seedlings supported little or no above ground stems; therefore, the extent of inundation appears to have induced mortality of greater than 70% for this planted species. In sue, the Bank developed wetland habitat that exhibited hydrological characteristics similar to the reference wetlands. Functional attributes exhibited include long-term surface water storage, energy dissipation, retention of nutrients and particulates, and establishment of characteristic wetland species populations. Although isolated pockets of emergent wetlands may develop, a majority of the Bank appears to support hydroperiods and successional patterns conducive to establishment of forested habitat. Although the Year 1 monitoring report concluded that the Bank had fulfilled success criteria for wetland hydrology and wetland vegetation in 1998, the MBRT disagreed and credits were not released. 4.4 Post-Restoration Conditions (October 1998 to October 1999) Heavy rainfall in the winter/spring of 1998 and in the fall of 1999 has created ponding over much of the site and contributed greatly to seedling mortality. Steps have since been taken to alleviate this ponding but these actions were not taken in time to affect Year 2 monitoring results and vegetation success criteria were not achieved in 1999. Year 2 monitoring was, therefore, used to pinpoint areas at Barra Farms that need more planting and to ascertain what species should be planted. 20 4.5 Post-Restoration Conditions (October 1999 to October 2000) Three hurricanes affected the coast of North Carolina in September and October of 1999, producing large amounts ofrainfall that inundated most of Barra Farms. This rainfall was heavy enough to produce standing water on both the former crop land on-site and forested sections within the reference site. In. October of 1999, six drainage pipes (18" diameter) were placed through the northern farm road/berm to drain the standing water from the restoration areas. Despite these efforts, water levels were still aboveground in some places during November and December. These pipes significantly reduced, standing water at Barra. Because of the ponding, seedling survival did not meet success criteria in 1999. To compensate for this, over 40,000 seedlings of twelve different woody species were planted at Barra in February of 2000. These seedlings have been able to survive in strong numbers and vegetation success criteria have been met. Some ponding still exists in the middle of the tract, which provides a freshwater marsh habitat for certain bird species like the great blue heron and the American bittern. However, these areas are not as extensive or as deep as they were in 1998 and 1999, and tree species like bald cypress, water tupelo, and swamp tupelo have been able to survive. The remainder of the tract is no longer ponded and supports a variety of planted and volunteer trees, shrubs, and herbaceous plants. Many of the trees are greater than 7 feet tall, Species noted this past year: great blue heron (Ardea herodias), American kestrel (Falco sparverius), American bittern (Botaurus lentiginosus), white-tailed deer (Odocoileus virginianus), coyote (Canis latrans), quad, black bear (Ursus a7nericanus) tracks (Picture b), otter feces, crayfish remains, mallard (Anas platyrhynchos), and belted kingfisher (Megaceryle alcyon). In addition, there are a 21 great deal of insects throughout the tract including grasshoppers, dragonflies, and butterflies. 4.6 Post-Restoration Conditions (October 2000 to October 2001) Species noted this past year. great blue heron (Ardea herodias), American kestrel (Falco sparverius), white-tailed deer (Odocoileus virginianus), quail, black bear (Ursus americanus) tracks, mallard (Anas platyrhynchos), and belted kingfisher (Megaceryle alcyon). In addition, many insects were observed throughout the tract . including grasshoppers, dragonflies, and butterflies. Compared to Years 1 through 3, Year 4 at the Bank has been uneventful. Rainfall has been at normal levels for a majority of the year and the tract is no longer ponded. This change was also noted in the duration of wetland hydrology across the tract, which was shorter than in previous years- Many trees throughout the tract are continuing to f lourish. The average heights of most species are considerably higher than last year. The preponderance of black willow, which was noted in Years 1 and 2, has lessened considerably and other species, including red maple, winged sumac, groundsel bush, and sweet pepperbush are volunteering into the tract. 4.7 Post-Restoration Conditions (October 2001 to October 2002) Species noted this past year: American kestrel (Falco sparverius), white-tailed deer (Ddocoileus virginianus), quad, raccoon tracks and black bear (Ursus americanus) tracks. As in past years, many insects were observed throughout the tract including grasshoppers, dragonflies, and butterflies. The Bank experienced below average rainfall between 2001 and 2002. According to the rational Climatic Data Center, North Carolina had its driest recorded year 22 between September of 2001 and August of 2002 (NCDC). This is reflected in the rainfall analysis for 2002 (Appendix B). The 30-day running total shows below normal rainfall for approximately four months; March, May, Jane, and July. The lack of rainfall has affected the hydrology at the Barra Farms tract, including the reference areas, and explains the large difference in hydrology results between 2002 and previous years at this site. Fortunately, the planted trees at Barra Farms were at least 3 years old and able to withstand the stress of short-term drought. Year 5 vegetation monitoring found a majority of the trees throughout the tract continuing to flourish. The average heights of most species are considerably higher than last year. Although the preponderance of black willow and winged sumac, which was noted in previous years, has lessened, the number of red maple continues to be high. However, it still appears that the red maple trees are not negatively affecting the survivability of the planted species. 23 5.0 SUMMARY Success in the restoration of wetland hydrology in the Bank required saturation (free water) within one foot of the soil surface for at least 50% of the time that the reference wetland exhibited wetland hydrology_ The reference groundwater flats, riverine floodplam, and headwater slope habitats exhibited wetland hydrology for a period averaging 15.1%, 163%, and 18.01/o, respectively. In the Bank, restoration wetlands supported wetland hydrology averaging 14.3% (94.7% of reference), 13.6% (75.6% of reference), and 13.3% (81.6% of reference), respectively, when comparing data from manual wells. Therefore, a0. three habitat types achieved the wetland hydrology success criterion in 2002. The wetland vegetation success criterion was met during Year 5 monitoring. According to the mitigation plan, at least 320 trees/acre and at least five character wetland species must survive in order to meet success criteria. Amer factoring in acceptable percentages of hardwoods and softwoods, the groundwater flats habitat contained 372.9 stems/acre across 21 wetland tree species. Headwater slope habitat supported 384 stems/acre and 14 character wetland species. Although the number of red maples in several plots within the Bank is above the 20% hardwood threshold, these maples are not inhibiting the growth or survival of planted species. Year 5 monitoring found both hydrology and vegetation at the Barra Fauns Cape Fear Regional Mitigation-Bank to meet the success criteria stated in the mitigation plan. Therefore, the conclusion of this monitoring report is that this mitigation site is successful and Year 5 credits should be released. Based on this conclusion, this is the final monitoring report for the Barra Farms Cape Fear Regional. Mitigation Bank. 24 6.0 References Sharitz, R.R. & J.W. Gibbons. 1982. The Ecology of Southeastern Shrub Bogs (Poeosins) and Carolina Bays: A Community Profile. U.S. Fish and Wildlife Service, November, 1982. 25 Trees within a typical plot at ]Barra. Many trees are greater than 8' tall. Barra Farms Mitigation Site Year 5 Cumberland County, NC Willow Oak Bald Cypress a Lund Management GFoup9 Inc. Environmental Consultants Wilmington, N.C. November 2002 Pictures of site. Typical plots at Barra ]Farms. Barra Farms Mitigation Site Land Management Group, Inc. ]Environmental Consultants Year 5 Wilmington, N.C. Cumberland County, NC November 2002 Pictures of site. D Z C7 rr R z c Abstract and conclusions from a research gager entitled: "Effects of agriculture and wetland restoration on hydrology, soils, and water quality of a Carolina bay complex" by Gregory L. Breland, Matthew F. Hanchey, and. Curtis I. Richardson Duke University Wetland Center Nicholas School of the Environment and Earth Sciences Durham, NC Accepted for publication in the scientific journal.: Wetlands Ecology and Management 4?? S* Effects of agriculture and wetland restoration on hydrology, soils, and water quality of a Carolina bay complex Gregory L. Breland, Matthew F. Hanchey, and Curtis J. Richardson Duke University Wetland Center Nicholas School of the Environment and Earth Sciences Box 90328 Durham, North Carolina, USA 27708-0328 Phone: (919) 613-8047 Fax. (919) 613-8101 E-mail: glb5Cduke.edu Key Words.: Agriculture, Carolina bay, hydrology, land-use, North Carolina, soil properties, wetland restoration, water quality 1 Abstract We compared hydrology, soils, and water quality of an agricultural field (AG), a two-year-old restored wetland (RW), and two reference ecosystems (a non-riverine swamp forest (NRSF) and a tall pocosin forest (POC)) located at the Barra Farms Regional Wetland Mitigation Bank, a Carolina bay complex in Cumberland County, North Carolina. Our main objectives were to: 1) determine if the RW exhibited hydrology comparable to a reference ecosystem, 2) characterize the soils of the AG, RW, and reference ecosystems, and 3) assess differences in water quality in the surface outflow from the AG, RW, and reference ecosystems. Water table data indicated that the hydrology of the RW has been successfully reestablished as the hydroperiod of the RW closely matched that of the NRSF in 1998. and 1999. Jurisdictional hydrologic success -criterion was also met by the RW in both years. To characterize soil properties, soil cores from each ecosystem were analyzed for bulk density (Db), total carbon (CO, nitrogen (N), and phosphorus (PO, extractable phosphate (PO4w), nitrogen (NeO, and cations (Ca,,,, Mg,,,, Ke., Naeo, as well as pH. Bulk density, Pt, Ca,-,, Mg,,,,, and pH were greatly elevated in the AG and RW compared to the reference ecosystems. Water quality monitoring consisted of measuring soluble reactive phosphorus (SRP), total phosphorus (TP), nitrate + nitrite (NOX), and total nitrogen (TN) concentrations in surface water from the AG, RW, and reference outflows. Outflow concentrations of SRP, TP, and NOX were highest and most variable in the AG, while TN was highest in the reference. This study suggested that while restoration of wetland hydrology has been successful in the short term, alteration of wetland soil properties by agriculture was so intense, that changes due to restoration were not apparent for most soil parameters. Restoration also appeared to provide water quality benefits, as outflow concentrations -of SRP, TP, NOX, and TN were lower in the RW than the AG. 2 Introduction Wetland restoration is a promising strategy for alleviating water quality problems in watersheds dominated by agriculture. The effectiveness of the wetland at improving water quality will depend on the flow of the water through the system (hydrology), as well as the forms and amounts of nutrients in the soil (soil properties). We report here the early results of a study investigating the effects of agriculture and wetland restoration on hydrology, soil properties, and water quality of the Barra Farms Regional Wetland Mitigation Bank, a Carolina bay complex in Cumberland County, North Carolina. The conversion of a wetland to agricultural production has implications for all components of the ecosystem. In terms of hydrology, the establishment of networks of drainage ditches lowers the water table, promotes rapid drainage during and after precipitation, and creates conditions of continuous surface water flow; in contrast, prior to ditching, water tables would be higher, drainage would be slower, and only intermittent flow would occur (Sharitz and Gibbons, 1982; Richardson and Gibbons, 1993). Reversal of these effects, to reestablish wetland hydrology is often cited as the most critical component to wetland restoration success (Kusler and Kentula, 1990); as hydrology has been considered the master variable controlling redox status, pH, nutrient cycling, community composition, and wetland development (Bridgham and Richardson, 1993). Thus, the first objective of our paper was to determine if the restored wetland (RW) exhibited representative wetland hydrology and met jurisdictional hydrologic* success criteria. This was accomplished by comparing the seasonal pattern of water table depths of the RW to that of the reference non-riverine swamp forest (NRSF). 3 Upon conversion to agriculture, wetland soils that were once subjected to reducing conditions and low rates of decomposition are subjected to oxidizing conditions and high rates of decomposition (Armentano and Menges, 1986; Schlesinger, 1986). Artificial drainage leads to the loss of organic matter and subsequent soil subsidence (Lilly, 1981): Following the initial impacts of ditching and clearing, come the secondary impacts that result from tillage, liming and fertilization. Tillage has been shown to increase compaction of wetland soils (Brady and Weil, 1999; Braekee, 1999). Liming increases soil pH and elevates base cation content (Simmons et al., 1996; Braakee, 1999). This, in turn, can further increase decomposition (Lilly, 1981; Compton and Boone, 2000). Fertilization often leads to over-saturation of agricultural soils with inorganic nutrients such as nitrate and phosphate. This occurs as more nutrients are applied as fertilizer than are taken up by crops during the growing season. Like hydrology, the restoration of wetland soil properties is another important factor in restoration, as soils are the physical foundation of wetland ecosystems (Stolt at al., 2000). Our second objective was to characterize and compare the soils of the agricultural (AG), restored wetland (RV), and two reference ecosystems to assess the impacts of land-use on wetland soil properties. Unlike hydrology, soil properties are more difficult to restore, less often considered in restoration plans, and rarely monitored in years following restoration (Shaffer and Ernst, 1999). Conversion-of wetland to agriculture in the North Carolina coastal plain has also been shown to affect surface water quality (Sharitz and Gibbons, 1982; Ash et al., 1983; Richardson, 1981; Richardson and Gibbons, 1993). Specifically, conductivity, pH, sediment, phosphorous and nitrogen concentrations have been shown to be much higher in agricultural ditches draining converted wetlands compared to streams draining unaltered wetlands in the coastal plain (Kuenzler et al., 1977; Kirby-Smith and Barber, 1979; Sharitz and Gibbons, 1982; Ash et al., 4 1983). Channelized streams are also more likely to be located in heavily managed areas that tend to export large amounts of nutrients as a result of fertilization and liming (Sharitz and Gibbons, 1982). The third objective of our paper was to assess the differences in water quality in the outflow from the AG, RW, and reference ecosystems at Barra Farms. Characteristics of Unaltered Carolina Bays Carolina bays are elliptical depressions found on the southeastern coastal plain that are consistently oriented in a northwest-southeast direction (Sharitz and Gibbons, 1982). Common features of these bays include an ovate shape with the large end at the northwest, a sand rim prevalent at the southeast margin, the presence of shrub bog communities, and a water table dependent on precipitation and evapotranspiration (Shantz and Gibbons, 1982). According the United States Fish and Wildlife Service system, Carolina bays are classified by the U.S. Fish and Wildlife Service as either forested or scrub-shrub palustrine wetlands (Cowardin et al., 1979). However, due to their variability in size,, depth, and substrate conditions, Carolina bays do not have a single characteristic cover type and may contain woody, shrub-scrub, herbaceous, and even aquatic vegetation (Shantz and Gibbons, 1982). Although the general features and vegetative communities of Carolina bays have been characterized, few in-depth studies have been conducted on these ecosystems (Richardson and Gibbons, 1993) and thus, despite their abundance in the southeast, relatively little is known about their hydrology, community structure, succession, trophic dynamics, and mineral cycling (Schalles and Shure, 1989). When land-use effects are overlaid upon the complex pattern of natural succession in Carolina bays, the ecosystem structure, function, and successional patterns become difficult to predict or quantify. For instance, over the last 300 years, Carolina bays have been frequently burned by Native Americans (Wells and Boyce, 1953), and more recently l? 5 drained for agriculture, forestry, industry, and other land management activities (Kirkman and Shantz, 1994). Study Site The four ecosystems chosen for our research.were all part of a 975 hectare (ha) Carolina bay complex located in Cumberland County, North Carolina (Figure 1). Clearing and ditching beginning in the 1960's converted the natural vegetative communities into a large-scale farm operation (Land Management, 2000a). A system of primary and secondary ditches was established with tertiary ditches added later in the 1970s (Land Management, 2000a). During the 1970s and early 80s, Barra Farris was one of the largest farming operations in the North Carolina coastal plain (J. Bullard, personal communication). For the last 10 years, the site has been farmed much less intensively. During a four-month period, from October 1997 to January 1998, 250 ha at the southern end of the site were restored from agriculture to wetland, creating the Barra Farms Cape Fear Regional Mitigation Bank (Figure 1). The restoration was conducted by Ecosystems Land Mitigation Bank Corporation (ELMBC), a mitigation banking firm based in Winter Park, Florida, USA. The restoration process consisted of two main components: 1) filling 3,360 in of linear ditches to reestablish surface and groundwater flow through the restored wetland, and, 2) planting 192,000 individual woody seedlings (see below). Secondary activities included stream restoration in Harrison Creek and supplemental planting in an adjacent riparian forest. Prior-to agricultural activity, the bay complex comprised the majority of the 2,500 ha drainage area for Harrison Creek. However, the network of agricultural ditches used to drain the site reduced the drainage area of Harrison Creek to 130 ha (Environmental Services, 1997). 6 After restoration, the drainage area of Harrison Creek was increased from 130 ha to 380 ha. Surface runoff and subsurface flow from the RW pass through the riparian forest before exiting the system. Improvements to water quality most likely result from the filling of ditches in the restored wetland and the redirection of flow through the riparian forest. Thus, in terms of water quality, we considered the restored wetland and the riparian forest a unit and will refer to them as the RW. Seedlings planted in the RW are typically found in these bay complexes and included bald cypress (Taxodium distichum [L.] Richard), Tupelo (Nyssa ssp.), Atlantic White Cedar (Chamaecypw is thyoides [L.] BSP.), water ash (Fraxinus caroliniana Miller), red bay (Persea borbonia [L.] Sprengel), tulip poplar (Liriodendron tulipifera, L.), cherrybark oak (Quercus pagoda Raf.), overcup oak (Quercus lyrata Walter), willow oak (Quercus phellos L.), swamp chestnut oak (Quercus michauxii Nuttall), and laurel oak (Quercus laurifolia Michaux). Interestingly, while T. distichum might have been found in the near-stream area or the floodplain of the riparian forest, it probably would not have occurred in the central portions of the bay removed from the stream (Rheinhardt and Brinson, 2000). In these areas, it may have been more appropriate to plant Taxodium ascendens, a more fire-tolerant species. To protect seedlings from flood stress during the fall of 1999, ELM_BC installed a series of culverts to drain standing water from the RW. Supplemental planting of an additional 43,300 seedlings was performed February 8-11, 2000 to replace dead seedlings and maintain a tree density of 320 per ha (Land Management, 2000b). Very little information is available to characterize the original status of the bay complex. A historic timber map of the site identified areas of hardwood in central portion of the bay !( complex, and areas of pine and juniper at the periphery (Flowers, 1924). The original Soil 7 Survey of Cumberland County classified the soils of the bay complex as Portsmouth loam, a Typic Umbraquult (Perkins et al., 1925). Soils of this series are described as poorly drained and range from dark-gray loam to muck. They are underlain by silty to sandy clay, and, in many places, have accumulated large quantities of organic matter (Perkins et al., 1925). The survey states that Portsmouth loam soils in Cumberland County supported forests of cypress, gum, and maple with an understory of gallberry, huckleberry, and bay bushes (Perkins et al., 1925). The most recent County Soil Survey of Cumberland and Hoke Counties reclassified the soils of the bay complex as Croatan muck, a Terric Haplosaprist (Hudson, 1984). This is a very poorly drained, organic soil that is formed of highly decomposed organic material and underlain by loamy textured marine and fluvial sediment. Intensive agricultural activities at the study site have caused massive changes in the Croatan muck soils. Much of the organic matter has been lost, and mineral subhorizons have been brought to the surface by plowing. For these reasons, when choosing a reference soil, both a true Croatan muck and an organic rich mineral soil might be considered appropriate. It the absence of other more specific historical information about the vegetation of the site, the nature of the vegetative communities that existed prior to cultivation must be inferred from the surrounding ecosystems. However, due to the heterogeneity of vegetative communities within Carolina bays, the restoration site may not have been originally identical to the adjacent agricultural area. Therefore, sampling several local reference wetlands can provide information about the range of values characteristic of regional reference conditions. Thus, we included in this study two reference communities, each with different soil and vegetative characteristics. Both reference areas are part of the bay complex, and are typical of communities observed in other unaltered bays of this region (Schafale and Weakley, 1990). Following the classification 1 8 scheme of Schafale and Weakley, we refer to them as the high pocosin (POC) and the non- riverine swamp forest (NRSF). The vegetation of the POC was characterized by a thick understory of Lyonia lucida (fetterbush), Ilex glabra (low gallberry), Smilax lawifolia (green briar), with emergent tree species such as Pinus serotina (pond pine), Magnolia virgiana (sweetbay), and Gordonia lasianthus (loblolly bay). The vegetation of the NRSF consisted of a much more open shrub layer of L. lucida, and S. laurifolia, with a closed canopy of tree species such as Acer rubrum 3 (red maple), T. distichum, M. virgiana, Liriodendron tulipifera (tulip poplar), and Pinus taeda (loblolly pine). Importantly, recent management practices in-the study area have involved long-term fire suppression. Thus, our control sites may not represent truly unaltered conditions. However, at the time of the study, no other reference areas were available that had been subjected to any other type of fire regime. ?I Conclusions Despite 30. years of intensive drainage anal agricultural land-use. at Barra Farms, wetland hydrology was quickly and effectively reestablished in the RW by filling in ditches. Both the seasonal pattern of water table depths and duration of time that water table depths were within 30 cm of the soil surface were very similar in the restored and reference monitoring wells. The major effects of agricultural land-use on wetland soil properties were to increase Db, Pt, Ca,, Mg,,, and pH of the AG and RW soils. Upon comparing the soils of the AG to RW, the main differences between the two ecosystems were in Ct, Nf, and P04, which were higher.in the - upper 0-440 cm of the AG. Interestingly, the soils of the RW had relatively' high amounts of Ct that may enhance ecosystem function in the early years of development. Even though large changes in most soil properties weren't observed following restoration, it appeared that restoration activities did provide water quality benefits as shown by the 30, 27, 97, and 19 % lower concentrations of TP, SRP, NOX, and TN respectively, in the RW as compared to the AG. Further process=level research is necessary to determine which mechanisms are responsible for nroviding these water duality benefits. O utline o f Carolina bay Bay Forest Reference Q ,ha) Reference Outflow ? R,ocosln ReNrence (270'ha) \? p AgricitRral Outflow V Wet a (AG) % `? • Riparian Forest 250 Up] • `(S-0-Ira • Barra Farms Cape (UPL) 0 Fear Regional ' Restored Wetland Mitigation Bank Outflow 0 ;Ilk N • Water quality monitoring outflow point Harrison Creek • Water table monitoring well -r Direction of surface water flow T 1 Km V? 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O G" F' Scores Y' Q? ?•? fD i-h ? i ' A• o ? ? ?.? P.1 ?? tt N O N ?", O O ?, p? ((pp P W p r P M ? { ?p ? R• ? ?• y ?? " y qO q O. W N p ...Ftt"' •. q • y O P? ?d p ?. W i4.lll? •'r, .Y? M? ?W z • H , h?l FI Z Z rnR L C_ Twva,4(a??? 5waA, Jwc. god §Pce am 252,2 Vim, Sodh Vwwk'na 2840,2 9e? 9Y0-452-0001 gzded _T. A 111d GN! .?fefl. a& DATE: August 15, 2002 .wife 14 .9805 wuk&d.- idle a4m= %66;d?, . M 28403 SUBJECT: Land & soils evaluation and hydrologic drainage study *of Barra-II (1110 acres) within the Barra Farms Tract to determine potential 404 Wetland areas vs Drained- Altered_ Wetland areas. Tract located within Harrison Creek Bay, south of NC Hwy 210 & NCSR 2033 intersection, Cedar Creek area, Cumberland County, North Carolina. (UTM 17=710519 E; 3868292 N) TO: ECOBANK Mr. Alan Fickett_ 1555 Howell Branch Road, Suite C-2 Winter Park, FL 32789 (888)`629-7774; (407) 629-7774; 629-6044 [fx] INTRODUCTION - The lands of Barra-II (1110 acres) within the Barra Farms Tract were evaluated and inventoried to determine- general soil/land types, drainage alterations, and their locations. ' Soil characterization, present drainage conditions, and general geohydrologic conditions were also used as inputs for a computer modeling drainage study ("DrainMod v.5.0). The results of these evaluations were compiled to determine the degree of historic drainage alterations to the site, and to determine potential areas that appear to function hydrologically as potential 404 Wetlands, versus those areas that should not meet the hydrologic criteria to be defined as 404 Wetlands. LAND & SOILS EVALUATION Barra-II is a portion of the Barra Farms Tract which is within southeastern Cumberland County, North Carolina (see general USGS topo and USDA soil maps). The general area's geomorphology. is characterized by organic Carolina Bays", sandy uplands, and slightly incised black-water streams. The Barra-11 study site is within a. relatively large Carolina Bay named "Harrison Creek Bay". The elevation of this entire area -varies between X120 to. -125 feet amsl (see USGS topo map). Thus, topography is predominantly level (0-2% slopes), with very slight undulations from edges of the bay rims. The Barra-II study site is situated within the interior portions of the Carolina Bay with 0-1% slopes. Natural drainage of the general. area is by rapid permeability through sandy upland areas to a concave organic "Carolina Bay", Where permeability and water movement slows. Barra-[ I's natural drainage and water movement appears to-be in a south to southwest direction towards an un- named tributary that has truncated the southwest edge of the bay. Agricultural and silvicultural drainage improvements have been historically established within portions of the study site. This drainage consists of.+2=4 fl.deep lateral open ditching on -300 ft spacing, which.connectto 4-7 ft deep collector drainage canals. All of the artificial drainage drains is in a southwest direction° l Page 1 of to an outlet canal with a water_control structure. Portions of Barra-li's original hydrology has been altered to various degrees where the historic ditching exists (see Barra-11 map showing existing roads & ditching). Evaluations of the Barra-11 site confirmed the USDA-SCS mapping to be representative of the soil types within the site being studied. The enclosed USDA-SCS soils map shows the major soil type areas found within this area (see enclosed USDA-SCS soils map). The following is a brief discussion of the major land & soil type areas found within the 1110 acre tract evaluated: The "CT" Soil Areas (see SCS soils map & description) predominate within the study area. In their natural state, they consist of very poorly drained organic soils of "Croatan". These soils typically have an organic (+20% o.m.) surface and subsurface to +2-3 ft depths, where loamy sand to sandy loam substratums are encountered (see enclosed USDA-SCS data). These land types in their natural state have 404 Wetland hydric soil and vegetative characteristics, but significant areas have been altered through prescription drainage improvements. The "TR" Soil Areas (see SCS soils map) are minor and within the perimeter of the study area. In their natural state,.they consist of very poorly drained mineral soils of "Torhunta". These soils typically have an organic (+20% o.m.) surface and subsurface to <1-2 ft depths, where loamy sand to sandy loam substratums are encountered. These land types in their natural state have 404 Wetland hydric soil and vegetative characteristics, but significant areas have been altered through prescription drainage improvements. The "Le" Soil Areas (see SCS soils map) are minor within the study area.- In their natural state, they consist of somewhat poorly to poorly drained soils of "Leon". These soils typically have a thin surface horizon over sandy substratums with hardpans or spodic horizons. These land types.in their natural state have non-hydric 404 Wetland soil and vegetative characteristics, and typically would be classified as uplands. The "Pa" Soil Areas (see SCS soils map) are minor within the study area. In their natural state,. they consist of moderately well to somewhat poorly drained soils of ?actolus". These soils typically have a very thin surface horizon over sandy substratums. These land types in their natural state have non-hydric404 Wetland soil and vegetative characteristics, and typically would be classified as uplands. A hydrologic analysis and drainage modeling were performed to determine which areas of the Barra-II Tract should or should not meet 404 Wetland hydrologic criteria. This is principally within the bay areas of the tractwhere there is +2 to 7 ft deep historic open ditching. In order to assess which portions of these tracts currently do or do not meet the hydrologic criteria to be defined as jurisdictional 404 Wetlands, the soil, site, and drainage parameters were simulated using the "DrainMod" hydrologic computer model; developed by R.W. Skaggs' - NCSU-MRCS version 5.0. This hydrologic drainage model is one of the latest computer simulations to evaluate drainage and its' impacts within an area. Various DrainMod analysis were performed using the known and representative site characteristic inputs to run various scenarios that reflect the various drainage depths and. existing drainage patterns that occur across the tract. The DrainMod model is capable of querying the results to determine the time periods and durations & depths of seasonal saturation from the ground surface to determine those areas that would meet the minimum hydrologic criteria to be hydrolocaliy defined or not defined as jurisdictional 404 Wetlands. All units within the models are in centimeters, hours, and days. All "DrainMod modeling analysis were ran for a 31 year time period 1951-1981 using Wilmington, NC climatological data which is quite similarto Cumberland County's rainfall periods, evapotranspirational rates, and temperatures (see enclosed Cumberland & New Hanover County climatological date). The 404 Wetland hydrologic parameters for Cumberland Page 2 of 5 County, NC ate soil saturation at depths <12" from the surface, for +12 consecutive days during ° th h ' which is M the "growing season F; a 240 (5% of growing season @>28 thru Nov 12 arch 17 day time period). The following DrainMod inputs were used in the wetlands analysis for the Barra-11 Tract ,with Croatan soil/land types. Climate Data = Wilmington, NC climatological data Time Period Analyzed = Years 1951 thru 1981 Annual Start/End Time = Day 76 and Day 316 Depth To Saturation = 30.5 cm (12") Ditch Spacings Evaluated = 300 ft (9144 cm spacing) 400 ft (12194 cm spacing) 460 ft (14021 cm spacing) 510 ft (15545 cm spacing) Ditch Depths Evaluated = 2 ft = 61 cm ?3 ft= 76 cm 4 ft = 107 cm 5ft=138cm 6 ft = 183 cm Depth Of Surface Ponding = 1.2 in = 3 cm Surface Storage To Drain = .1.2 in = 3 cm Depth To Impermeable Layer = 10 ft = 305 cm Effective Drain Radius = 7.0 -1-0:0 cm Drainage Coefficient = 5.0 cm/day Soil Ksat Rates = "Croatan Soils" [USDA-SCS data: Used lower values] 00-15 cm (00-06"); 2.54 cm/hr (1.0 in/hr) 15-91 cm (06-36'); 1.02 cm/hr (0.4 in/hr) 91-279.2 cm (36-110'x; 7.62 cm/hr (3.0 in/hr) - Lateral Seepage = 0 cm/hr Vertical Seepage = 0 cm/hr Slope Seepage = 0 cm/hr Initial Potentiometric Surface = 30 cm (beginning in year 1951) Kirkam G-Factor = 4.72 Wetland Queries = Water-table <30.5 cm (12" from surface for>12 day time period,. between day 76 and day 316. The various runs of the model incorporate soil characteristics, precipitation, evapotranspiration, surface storage, surface infiltration, and drainage influences on the fluctuation & duration of the unconfined aquifer`s potentiometric surface. All inputs are fixed except drainage depths and spacing. The data of each model is gcaeried.to tell how many times over a 31 year time period the water table is less than 12" (30.5 cm) for durations of >12 consecutive days, during the growing season of Cumberland County, NC (March 17t'thru November 12th). When >50% of the 31 years meet these conditions (1-6 yrs out of 31 yrs), it hydrologically meets the criteria to be defined as 404 Wetlands. The enclosed data summary and graphs show these results (see Croata_ n DrainMod data). Within "Croatan" soil types of the Barra=ll Tract the following results were obtained within areas of aarallel ditching: Drainage Depths with 300 ft Spacing Number of Yrs 404 Wetland Criteria Met (%) 2.0 ft 21 out of 31 years (67.7%) 3.0 ft 15 out of 31 years (48.4%) Page 3 of 5 Based upon the above results, when drainage depth: ditch spacing the 404 Wetland hydrologic criteria will types. Within Barra-11, the areas with parallel pattern i maintained to these depths. The land areas with par, hydrologic criteria within Barra-11 are shown on the en conditions "white-shaded" areas). 3:0 ft or greater with parallel <300 ft met within these "Croatan" land/soil e have ditch depths of >3.0 ft or are Ching that do not meet 404 Wetland map (see map, hydrologic drainage For the collector ditching within Barra-11, which are non-pa. rallel' and/orwith variable ditch depths, DrainMod _is ran several times, varying only the ditch spacing -input, to determine the lateral drainage effects of a single ditch at a specified depth. When 404 Wetland hydrological criteria are not met (<50% of the 31 year time period), then Y of the ditch spacing is the lateral drainage influence of a single ditch at the specified depth. The enclosed data summary and graphs show these .results (see Croatan DraihMod data). Within "Croatan" soil types of the Barra-11 Tract the following results were obtained for the lateral riminaaP PffPrtG of single collector ditches- Depth of Collector- Ditch Ditch Spacing In Model Number of Years 404 Wetland Criteria Met (%) Lateral Drainage Effect in Feet ('/ Ditch Spacing) 4.0 ft 400 ft 15 out of 31 yrs (48.4%) 200 ft 5.0 ft - = 460 ft 15 out of 31 yrs (48.4%) 230 ft 6.0 ft 510 ft 15 out of 31 yrs (48.4°/x) 255 ft Based upon the above results, the lateral drainage effects of single collector ditches at various t depths were determined for the "Croatan" land/soil types within Barra-11. The land areas with collector ditching that do not meet 404 Wetland hydrologic criteria within Barra-ll are shown on the enclosed map (see map, -hydrologic drainage conditions "yellow-shaded" areas). -SUMMARY A land, soils, and hydrologic evaluation was completed to evaluate the drainage effects within the Barra-I1 Tract (1100 acres). The bay areas have the hydric soil & vegetative indicators to be defined as 404 Wetlands, but have significantly altered drainage conditions through historic, open, parallel and collector ditching at various depths. The site was characterized through land/soils mapping, aerial photo interpretation, qualitative determinations of soil properties, research of existing reference materials, and "DrainMod" computer modeling. These evaluations were used to further determine the general acreage that would or would not meet the minimum hydrologic criteria to be defined as jurisdictional 404 Wetlands. Representative soil characterizations, conservative hydraulic conductivity rates, and known ditch depths & spacing inputs were utilized in the DrainMod drainage/hydrology model Based upon the various DrainMod models ran with the Croatan land/soil types, 404 Wetland hydrology is not met when parallel ditch depths are 3.0 ft deep or greater with 300 ft spacing. Also the lateral drainage effects of collector ditches were determined at various depths and for conditions when 404 Wetland hydrologic criteria were not met. Afinal map is enclosed that shows the areas and planimetered acreage of potential jurisdictional 404 Wetlands vs drained wetland areas (see map "Hydrologic Drainage Conditions"). ?L. Page 4 of 5 Hydrologic 404 Wetland Status Acreage' ***"` Inside Tract Outside Tract TOTAL Non-Hydric 404 Hydrologic Conditions 315 acs 130 acs 445 acs Based Upon DrainMod "Yellow-Shaded" PC and Non-Hydric 404 Hydrologic Conditions Based Upon USDA-ASCS 440 acs 0 acs 440 acs Class & DrainMod "White-Shaded" Meets Hydric 404 Hydrologic Conditions 355 acs 355 acs Based Upon DrainMod "Not Shaded" TOTAL ACREAGE 1110 acs 130 acs 1240 ac 1 Acreage is planimetered & approximate. Based upon the soils evaluation and "DrainMod" hydrological analysis, there are -755 acres that do not meet 404 Wetland hydrology criteria within the Barra-11 Tract. In addition, there are -130 acres directly adjacent to and outside of the Barra-li Tract that also do not meet 404 Wetland, hydrology criteria. Thus, there is a total of -885 acres that do not meet 404 Wetland hydrology This report, maps, and evaluations should be used for land planning purposes only. The U.S. -Army Corps of Engineers-EPA and NCDENR-DWQ have final regulatory authority over 404 Wetland determinations, and permitted/non-permitted activities within 404 Wetland areas. This 4 information should be used as a supportive document to determine drained vs undrained wetlands, potential jurisdictional 404 Wetland areas, and areas for possible wetland mitigation credits within the Barra-11 Tract. Larry F. Baldwin, CPSSJSC ARCPACS #2183-1, NCLSS #1040 Page 5 of 5 U O QJ tY W Q J? C ?O rn L V (? Z U 2 .? U? F- o oz U = O 0'a U _ cu I I E L9 Z ? L co X a cu U m Z_ Y d O L V) 0 0 ?L L L tLS V co 05 t ? L U ?- a? (t O Q. co 4 0 co ri) a m 0 ?0^ UJ 0) Cl) X LU w LL. N Fa O C ui 0 ° C? C4 IN E c c Q ? ? CC ?2c!) Z_ 1 LU _n W F- M ci O V 0 O 00 °.cu Z U. O? CL o oz w . Lo M O O0 H ? 0 cu z d O .a Z ? a? ?Q v U m O- =1 d O p U = cn L V CIS Z = .3-006 O ,? = QY SD NV L cc a) C3 co T t U Q III Q CCl U- Q cr y c 0 a c O 00 O c o 'co L L mom Q o .>, cu Zmm m v LO 0 2 U_ Q 0.6 N O ca =U CO C) C) U Q o< 2j o c z 0 c? -0 (D a) co m c co a 00 U L CL dU m U O N c O 0 U c U o O +. 00 co Nt U p t) cu It LO c U 0 v L Q =a 0 Z? 41 LL N ? N O QN d C gI ?$ V) to = Q s Cc M O r -3 20 - - -_.?... BARRA II 300 ft Spacing 2 ft Depth ------------------------------------------------ DRAINMOD version 5.0 -- --- Copyright 1990-94 North Carolina state university -------------=--------------------------------------- 404 WETLANDS ANALYSIS BARRA-II; Croatan Soils; 2` Depth @300` Ditch Spacing ^^^_^^_^_^^__^^^^^^^^_------ -- WILN(INOTON,^NC^WEATHER^DATA^1951-1981^TIME ^PERIOD ----------RUN STATISTICS `------- time: 8/20/2002 @ 16:34 input file: C:\orainmod\inputs\Barra-I1.lis parameters: free drainage and yields not calculat drain spacing = 9144. cm drain depth = 61.0 cm ------------------------------------------------------------------------ Number of periods with water table closer than 30.50 cm for at least 12 days. Counting starts on day 76 and ends on day 316 of each year YEAR Number of Periods Longest consecutive of 12 days or Period in Days more with WTD < 30.50 cm ------------------ -------------------- 1951 0. 10. 1952 2. 16. 1953. .. Q. . 7. 1954 0. 7. 1955 2. 25. 1956 1. 16. 1957 0. 11. 1958 3. 38. 1959 2. 16. 1960 4. 14. 1961 2. 24. 1962 3. 15. 1963 2. 18. 1964 1. 21. 1965 3. 16. 1966 4. 16. 1967 0. 6. 1968 0. 3. 1969 4. 27. 1970 2. 27. 1971 2. 23. 1972 0. 4. 1973 3. 20. 1974 2. 29. 7975 0. 11. . 1976 0. 11. 1977 1. 18. 1978 0. 8. 1979 2. 35. 1980 1. 22. 1981 1. 13. Number of Years with at least one period= 21. out of 31 years. Page 1 -- _ ? - _ BARRA = 30D ft Spacing 3 ft Depth ° ----------------------------------------------------- `0 _ DRAINMOD version 5.0 Copyright-1990_94 North Carolina State University 404 WETLANDS ANALYSIS sARRA-II; Croatan soils; 3` Depth @300` Ditch Spacing ^^^^^^^^^^_^_^^-^_^^^^^^?-? WILMINGTON, -NC^WEATHER ^DATA ^1951-1981^TIME ^PERIOD ----------RUN STATISTICS ---------- time: 8/20/2002 @ 16:55 input file: C:\Drainmod\inputs\sarra-11-lis parameters: free drainage and yields not calculat' drain spacing = 9144. cm drain depth = 91.4 cm ------------------------------------------------------------ Number of periods with water table closer than 30.50 cm for at least 12 days. Counting starts on day 76 and ends on day 316 of each year YEAR Number of Periods Longest Consecutive of 12 days or Period in Days more with WTD < 30.50 cm ------------------ -------------------- 1951 0. 7. 1952 0. 6. 1953 0. 6. 1954 0. 4. 1955 2. 24. 1956 1. 13. 1957 0.. 8. 1958 2. 20. 1959 0. 6. 1960 1. 12. 1961 2. 18. 1962 0. 11. 1963 1. 14. 1964 0. 10. 1965 3. :.: 14. 1966 1. 14. 1967 0 4. 1968 00 , 2. -1969 1. 25. 1970 2. 20. 1971 1. 16. 1972 0. 0. 1973 1. 14. 1974 1. 27. 1975 0. 8. 1976 0. 11. . 1977 0. 8. 1978 0. 0. 1979 1. 32. 1980 0• 7. 1981 1: 12. Number of Years with at least one period = 15. out of 31 years. Page 1 4 zt Depth -200 ft Dral- age Int -aence ---------------DRAINMOD version 5.0 Copyright 1990-94 North Carolina-State University ----------------------------------------------------- 404 WETLANDS ANALYSIS BARRA-II; Croatan soils; 4' Depth @400` Ditch Spacing ^^^^^^^^^^^^y^^^?^?,^??^^?????^ WILMINGi-ON,^NC^WEATHER ^DATA ^1951-1981^TIME ^PERIOD - --RUN STATISTICS ---------- time: 8/20/2002 @ 17: 4 input file: C.\Drainmod\inputs\Barra-II.liselds not calculat parameters: free drainage and Yfi drain spacing = 12194. cm drain depth = 122.0 cm ----------------------------------------------------- Number of periods with water table closer than 30.50 cm -for at least 12 days. counting starts on day 76 and * ends on day 316 of each year YEAR Number of-Periods Longest Consecutive of 12 days or Period in Days more with WTD < 30.50 cm ------------------ -------------------- 1951 0. 7. 1952 0. 10. 1953 0. 7. 1954 0. 0. 1955 2. 25. 1956 0. 7. 1957 0. 10. 1958 3. 38. - 1959 0. 6. 1960 2. 13. 1961 2. 19. 1962 1. 12. 1963 0. 10. 1964 1. 17. 1965 3. 16. 1966 2. 14. 1967 0. 0. _ 1968 0. 1. 1969 3. 26. 1970 2. 24. 1971 1. 16. 1972 0. 0. 1973 1. 14. 1974 2. 25 1975 0. 4. 1976 0.' 11. 1977 0. 8. 1978 0. 0. 1979 2. 35. 1980 0. 9. 1981 1. 13. Number of Years with at least one period = 15. out of 31 years. Page 1 5- ft Depth -2-'30 ft Dra-i rage Influence ----------------------------------------------------- DRAINMOD version 5.0 ° Copyright 1990-94 North Carolina State University ° 404 WETLANDS ANALYSIS BARRA-II; Croatan soils; 5r Depth-@460 Ditch Spacing WILMINGTON, NC WEATHER.DATA 1951-1981 TIME PERIOD -------=--RUN STATISTICS ---------- time: 8/20/2002 @ 17:19 input file: C:\Drai nmod\inputs\Barra-I1.lis parameters : free drainage and yields not cal cul at drain spacing = 14021. cm drain depth = 152.4 cm ------------------------------------------------------------------------ Number of periods with water table closer than 30.50 cm for at least 12 days. Counting starts on day 76 and ends on day 316 of each year YEAR Number of Periods Longest consecutive of 12 days' or Period in Days more with WTD < 30.50 cm ------------------ -------------------- 1951 0. 7. 1952 0. 10. 1953 0. 5. 1954 0. 0. 1955 2. 25. 1956 0- 8, 1957 0. 10. 1958 3. 38. 1959 0- 6. 1960 2. 13, 1961 2. 19. 1962 1. 12. 1963 0. 9, 1964 1. 18. 1965 3. 16. 1966.. 3_ 14, 1967 0. 0, 1968 0. 0. 1969 3. 27. 1970 2. 24. 1971 1. 12. 1972 0. 0. 1973 1. 14. 1974 2. 25. 1975 0. 4. 1976 0. 11. 1977 0. 8, 1978 0: 0- 1979 2, 35. 1980 0, 8. 1981 1. 13. Number of Years with at least one period = 15. out of 31 years. l Page 1 •6 f-t Depfi?i -255 ft Drainage Inf-1nenze ----------------------------------------------------- DRAINMOD version 5.0 Copyright- 1990-94 North Carolina state University ----------------------------------------------------- 404 WETLANDS ANALYSIS SARRA-11f Croatari soils; 6` Depth @510` Ditch Spacing WILMINGTON, NC WEATHER DATA 1951-1981 TIME PERIOD ----------RUN STATISTICS ---------- time: 8/20/2002 @ 18:38 input file: C:\Drainmod\inputs\Barra-I1.lis parameters : free drainage and yields not cal cul at drain spacing = 15545. cm drain depth = 182.9 cm ------------------------------------------- ------------------- Number of periods with water table closer than 30.50 cm for at least 12 days. Counting starts on day 76 and ends on day 316 of each year YEAR Number of Periods Longest Consecutive of 12 days or Period in Days more with WTD < 30.50 cm ------------------ ------------------- 1951 0. 7. 1952 1. 15. 1953 0. 3. 1954 0. 0. 1955 2. 25. 1956 0. 8. 1957 0. 11. 1958 3. 38. 1959 0. 6. 1960 4. 14. '1961 2. 19. 1962 1. 12. 1963 0. 9. 1964 1. 18. 1965 3. 16. 1966 3. 16. 1967 0. 0. 1968 0. 0. 1969 2. 27. 1970 2. 25. 1971 1. 12. 1972 0. 0. 1973 1. 16. 1974. 2. 25. 1975 0. 5. 1976 0. 11. 1977 0. 8. 1978 0. 0. 1979 2. 35. 1980 0. 8. 1981 0. 11. Number of Years with at least one period = 15. out of 31 years. Page 1 =U-TS =RA-I1 WETLAND A=Y.SZS D R. A I N -M O D Copyright 1990-91 North Carolina State University" VERSION: NORTH CAROLINA MICRO-UNIX 5.0 LAST UPDATE: FEB. 1994 LANGUAGE: MS FORTRAN v 5.0 & UNIX f77 DRAINMOD IS A FIELD-SCALE HYDROLOGIC MODEL DEVELOPED FOR THE DESIGN OF SUBSURFACE DRAINAGE SYSTEMS. THE MODEL WAS DEVELOPED BY RESEARCHERS AT THE DEPT. OF BIOLOGICAL AND AGRICULTURAL ENGINEERING, NORTH CAROLINA STATE UNIVERSITY UNDER THE DIRECTION OF R. W. SKAGGS. = D R A I" N" M 0 D -- 5.0 ° DATA READ FROM INPUT FILE: C:\Drainmod\inputs\Barra-I1.lis cream selector (0=no, 1=yes) = 0 TITLE OF RUN 404 WETLANDS ANALYSIS BARRA-II; Croatan Soils; 2 to 6 ft Depths @300` Ditch Spacing WILMINGTON, NC WEATHER DATA 1951-1981 TIME PERIOD CLIMATE INPUTS DESCRIPTION (VARIABLE) ------------------- VALUE --------- UNIT ---------- ----------------------------------------- FILE FOR RAINDATA ..............C:\DRAINMOD\WEATHER\NWILMING.RAI FILE FOR TEMPERATURE/PET DATA ..C:\DRAINMOD\WEATHER\NWILMING .TEM RAINFALL STATION NUMBER ....... ....................(RAINID) 319457 TEMPERATURE/PET STATION NUMBER ...................(TEMPID) 319457 STARTING YEAR OF SIMULATION ... ...............(START YEAR) 1951 YEAR STARTING MONTH OF SIMULATION .. ..............(START MONTH) 1 MONTH ENDING YEAR OF SIMULATION ..... .................(END YEAR) 1981 YEAR ENDING MONTH OF SIMULATION .... ................(END MONTH) 12 MONTH TEMPERATURE STATION LATITUDE.. ..." ..............(TEMP LAT) 34.16 DEG.MIN HEAT INDEX .................... ......................(HID) 85.00 ET MULTIPLICATION FACTOR FOR EACH MONTH 2.01 2.32" 2.10 1.72 1.23 1.00 .86 .82 .92 1.05 1.22 1. 44 DRAINAGE,SYSTEM DESIGN CONVENTIONAL DRAINAGE =^ JOB TITLE: 404 WETLANDS ANALYSIS BARRA-II; Croatan Soils; 2`-6` Depth @300 WILMINGTON, NC WEATHER DATA 1951-1981 TIME PERIOD STMAx = 3.00 CM SOIL SURFACE Page 1 J INPUTS BARRA-II WETLAND ANALYSIS ADEPTH-=305. CM DDRAIN = 61 to 183 CM 0------------- SDRAIN = 9144. CM -----------0 - EFFRAD CM HDRAIN =218. CM - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - IMPERMEABLE LAYER DEPTH SATURATED HYDRAULIC CONDUCTIVITY CCM) (CM/HR) .0 - 15.0 2.540 15.0 - 91.0 1.020 91.0 - 279.2 7:620 DEPTH TO DRAIN = 61.0 to 183 CM EFFECTIVE DEPTH FROM DRAIN TO IMPERMEABLE LAYER = 218.2 CM DISTANCE BETWEEN DRAINS = 9144.0 CM MAXIMUM DEPTH OF. SURFACE PONDING = 3.00 CM EFFECTIVE DEPTH TO IMPERMEABLE LAYER = 279.2 CM DRAINAGE COEFFICIENT(AS LIMITED BY SUBSURFACE OUTLET) = 5.00 CM/DAY MAXIMUM PUMPING CAPACITY CSUBIRRIGATION MODE) = 2.50 CM/DAY ACTUAL DEPTH FROM SURFACE TO IMPERMEABLE LAYER = 305.0 CM SURFACE STORAGE THAT MUST BE FILLED BEFORE WATER CAN MOVE TO DRAIN = 3.00 CM FACTOR -G- IN KIRKHAM EQ. 2-17 = 4.72 °== SEEPAGE LOSS INPUTS No seepage -due to field slope No seepage due to vertical deep seepage No seepage due to lateral deep seepage end of seepage inputs WIDTH OF DITCH BOTTOM = 91.0 CM SIDE SLOPE OF DITCH (HORIZ:VERT) = 1.00 1.00 INITIAL WATER TABLE DEPTH = 30,0 CM SOIL INPUTS TABLE 1 DRAINAGE TABLE VOID VOLUME WATER TABLE DEPTH (CM) .0 1.0 2.0 3.0 4.0 5.0 6.0 (CM) .0 3-6.5 47.2 55.5 63.0 69.4 75.7 Page 2 INPUTS BARRA-II WETLAND ANALYSIS 7.0 81.2 8.0 86.7 9.0 91.9 10.0 96.6 11.0 101.4 12.0 106.1 13.0 110.9 14.0 115.7 15.0 120.5 16.0 - 125.3 17.0 130.2 18.0 135.1 19.0 140.0 20.0 144.9 21.0 149.8 22.0 155.4 23.0 161.0 24.0 166.5 25.0 172.1 26.0 177.7 27.0 183.3 28.0 188.8 29.0 194.4 30.0- 200.0 35.0 223.8 40.0 247.7 45.0 271.5 50.0 295.4 60.0 343.1 70.0 390.7 80.0 438.4 90.0 486.1 TABLE 2 SOIL WATER CHARACTERISTIC VS VOID VOLUME VS UPFLUX HEAD CCM) '.0 10.0 20.0 30.0 40.0 50.0 60.0 - 70.0 80.0 90.0 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0 190.0 200.0 210.0 220.0 230.0 240.0 250.0 260.0 270.0 280.0 WATER CONTENT CCM/CM) .4500 .4420 .4340 .4260 .4180 .4100 .4080 .4060 .4040 .4020 .4000 .3980 .3960 .3940 .3920 .3900 .3880 .3860 .3840 .3820 .3800 .3780 .3760 .3740 .3720 .3700 .3690 .3680 .3670 VOID VOLUME ECM) .00 .04 .18 .58 1.27 2.34 3.54 5.09 6.78 8.61 10.71 12.81 14.91 16.95 18.99 21.03 22.83 24.62 26.42 28.21 30.00 32,10 34.20 36.29 38.39 40.49 42.58 44.68 46.78 UPFLUX CCM/HR) .5000 .5000 .2167 .0777 .0331 .0170 .0071 .0040 .0020 .0010 .0008 . 000 5 .0003 .0002, .0001 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 Page 3 INPUTS BARRA-II WETLAND ANALYSIS 290.0 i .3660 48.88 .0000 t 300.0 .3650 50.97 .0000 350.0 .3600 61.46 .0000 400.0 .3567 71.94 .0000 450.0 .3533 82.43 .0000 500.0 .3500 92.91 .0000 600.0 .3440 94.33 .0000 700.0 .3380 95.75 .0000 800.0 .3320 97.16 .0000 900.0 .3260 98.58 .0000 GREEN AMPT INFILTRATION PARAMETERS W.T.D. A B (CM) (CM) (CM) .000 .000 2.540 10.000 .250 2.540 20.000 .430 2.160 40.000 .630 1.590- 60.000 .830 1.590 80.000 .910 1.590 100.000 .990 1.590 150.000 2.970 1.590 200.000 2.970 1.590 1000.000 2.970 1.590 WASTEWATER IRRIGATION NO WASTEWATER IRRIGATION SCHEDULED: ----------------------------------- . _ ..* wetlands Parameter Estimation *. .. Start Day = 76 End Day = 316 Threshold water Table Depth Ccm) = 30.5 Threshold Consecutive Days = 12 Fixed Monthly Pet values 1 1.00 2 1.00 3 1.00 4 1.00 5 1.00 6 1.00 7 1.00 8 1.00 9 1.00 10 1.00 11 1.00 12 1.00 Mrank indicator = 0 OF INPUTS -----=----RUN STATISTICS -------- time: 8%20/2002 @ 16:34 input file:- C:\Drainmod\inputs\Barra-Il.lis parameters: free drainage and yields not calculat drain spacing = 9144, cm- drain depth = 61.0 cm -------------------------------------- ------------------------ -------- FOR 7/1953, NUMBER DAYS MISSING TEMPERATURE= 1 FOR 2/1956, NUMBER DAYS MISSING TEMPERATURE= 3 FOR 9/1965, NUMBER DAYS MISSING TEMPERATURE= 1 **> COinpUtational Statistics . l** **> Start Computations = 994.745 *> End computations = 994.840 =*> Total simulation time = 5.7 seconds. Page 4 '?•. 38 - SOIL SIIRwY =E F.' TABLE 1 .--TEMPEP,ATURE AND PREC IPITATION DATA t. I l _ I 1 Temperature) l i 1 Preeipitationl i i 2 years in 12 years in 1D 1 ' Month A vera e A 10 will, have-- Average ;will have-- , Average , s;! I r g daily l verage, ,.daily , Averagel daily , Maximum , ;number oflAvera e; g ; Minimum 1 growing 1 { Less I ; More ' !number of,Aver; ;days withlsn w: E iinaximumlminimum l i 1 ltemperature itemperaturel degree ; o ;than--)than--;0.10 inch; 1-: higher ; lower ; days2 ; ; ; l ; or more • than-- than-- r F. F 1 F I F i In i In ; In I h a January"--- , 1 57.9 1 35.3 F ! I 45.6 I 77 , 17 , ! 57 1 3.41 i 1.94 i 4_61 F i 7 ; February---1 58.3- , 1 37.1 ; { 47.7 79 I i 1 19 1 69 i '1 3.66 .i 1 2.40 -1 4.80 1 ' 7 ; Mar6h----__? 64.3 1 43.0 1 53.7 84 1 26 180 1 4.09 1 2.25 1. 5.58 8 April------1 73.7 1 51.6 1 62:7 1 91 ; 34 1 381 1 3.07 1 1.36 1 4.46 1 5 1 May-------- I 80.8 1 60.1 1 70.5 1 95 1 43 ? 636 1 4.09 1 2.27 1 5.57 1 6 Jurle ------- 1 86.2 1 67.2 1. 76.7 1 99 1 53 1 801 I 5.63 1 2.84 ' 17-89 ' ' 1 8 1 July ---- 89.0 1 71.2 1 80:1 1 98 1 61 1 933 1 7.72 1 4.47 110.36 1 10 August-----1 88.3 1 70.5 1 79.4 1 98 1 6o 911 1 , 6.80 1 , 4.10 1 , 9.21 1 1 , 9 , 1 1 • September— 1 1 -83.7 1 65.2 1 1 , 74.5 ; 94 , 50 1 735 1 5.55 1 2.66 1 7-40 , 1 6 1 October--=-1 75.5 1 54.6 1 65:0 1 89 1 33 i 465 i 3-16 1 1 07 1 4 84 1 . . 5 1 November---1 t 66.5 i 43-7 1 1 1 55.1 1 82 1 25 i i 162 1 3.19 I 1 1.28 I 1 4.73 1 5 1 - December---1 1 59.1 1 37.4 1 L 1 I 48.3 1 ! 78 1 18 1 115 1 1 3-17 1 1.59 1 1 1 4.44 1 1 1 1 6 , Year-----1 ' 73.4 1 53.1 1 -63.3 1 F 99 1 15 1 1 5,445 1 1 53.514 1 147.28 1 1 1 . 82 4 1 1 11fecorded in the period 1 9522-74 at Wilmington, N.C. 2A growing degree day is by adding the maximum and min an index imum dail of. the amount of heat available t for pla nt growth. It can be dalculat below which growth is minimal for th y emperatures, dividing the sum by 2, in ip and subtracting th-e tempera£ur e pr c al crops in the area (5d degrees F). R {{p 102 TABLE 1.--TEMPERATURE AND PRECIPITATION [Recorded in the period 1951-73' at Fayetteville, North Carolina, in Cumberland County] Soil survey Temperature ; Precipitation 2 years in i .10 will have-- ; i Average ; 12 years in 10; ; will have-- ; A Month , Average,A verage, Averag e ; verage ; ; ? daily 1 daily ; , daily ; Maximum 1 Minimum ;n 1 umber oflAvera e' g r i r r age maximumlrainimum, ' ? !temperature ,t mperatur l ow ng g , degree ; , Less ;than- , More ,d -;than--;0 s withis ays s .10 inch' no no wf all i ; higher ; lower ; daysl ; 1 ; than-- ; , than-- or more ; of 1 of o F 1 F 1 ; , ; Units ; In , In , In ; r In January----; 54.0 1 30.0 1 42.0 1 78 ; 12 25 1 3451 2 22 4 67 8 . , . " February---i 57.0 1 32.9 1 44.9 1 80. 15 ? 22 4.10 2 42 5 59 i , . . 8 i .5 March.-------1' 63.9 1 38.5 1 51.2 1 84 23 ? 111 ; 4.10 2 59 ; 5 45 ; . . 8 April------1 73:5 1 47.4 ; 60.5 ; 91 30 315 1 3.21 1 1 87 4'0 ; 1 4 1 . . 5 D MaY--- ----' 80.7 1 56.3 1 68.5 96, 37 "57h 1 3.5.4 ; 2 20 ; 4 74 ; 6 . . 1 .D June-------; , 87.5 64:7 ; 76.1 1 ; 100 4 4 1 783 1 4.56 1 2.50 1 6.37 , " 7 1 July=------; 90. ; 68.9 1 79.6 ; 16l ; 57 1 418 ; 4.94 ; 3.02 ; 6:66 ; g ; .D August-----1 89.1 ; 67.9 1 78.5 1 99 1 55 1 884 1 5.67 1 3.8i 1 7.36 1 8 0 o September--'. 84.5 j -61.8 73.2 96 45 1 69,6 ; 3.53 1 1.41 5.36 ; " 5 ; . October---; 1 75.4 1 50.1 1 62.7 1 90 1 28 , 394 1 5..15 1 .78 1 5603 1 5 1 .0 November---1 1 1 66.0 1 ? 38.4 1 52.2 1 ' , 84 9 , 03 i .40 .94 ` 61 ; 1 3 1-- 4 ; -0 December---1 1 1 56.0 1 30.8 ; 43.4 79 ! 12 ? 78 f 2.85 1 1 1.27 . " 4 19 1 b 1 .0 1 . 149 Yearly: , Average:-; 73.1 1 49.0 ; 61.1 , , - --- Extreme-=; --- ; -=- 1 --- 1 101 ; 12 --; Total----'. --- 1 -- ; " --- 1 1 4,9D3 1 45.55 137.72 1 1? 79 1 3-2 lA growing degree day is a unit of heat available for-plant growth. It can be calculated maximum and mini.muin daily temperatures dividin the s b by adding the growth is tinimal for the pri ncipal , g um y cr ps i ° 2, and subt ractin g the t emperature below whi ch o n the a • rea (50 F). TABLE 2.--FREEZE DATES IN SPRING AND FALL [Recorded in the period 1951-73 at Fayetteville, - North Carolina in Cumberland County] i Temperature Probability ; 24 F ; 28 F ; 32 F ;. or lower ; or lower, i or lower ? F F Last freezing ; temperature in spring: ; , 1 year in 10 ; later than-- ; March Z7 ; April 13 ; April 30 , , 2 years in 10 later than-- ; March 17 ; April 4 ; April 19 I I ? I 1 'S years in 10 later than-- ; February 25 i March 17 ; March 30 , I First freezing ; temperature in fall: ; i ` 1 year in 10 r earlier than__ November 5 i October 27 ; October 20 2 years in 10 earlier than- ; November 17 ; November 1 ; October 24 'S years in 10 earlier than- November 22 ; November 12 October 31 [Recorded in the period 1951-73 at Pinehurst, North Carolina, in Moore County] i Temperature r Probability- ; 24 F ; 280-F ; 32 F or lower ;. or itwer ; or lower .Last freezing temperature ; in spring: 1 - , I 1 year in 10 later than-- ; March 27 1 April 2 ; April 24 , l 2 Years-in 10 later than-- ; March 19 ; March 30 ; April 18 5- ye ars in 10 later than-- ; March 5 ; March' 23 1 April 5 First freezing ; l l temperature ; i in fall: ; r ; l F i - 1 year in 1b ; earlier than-- i November 4 ; October 23 ; October 14 F I 2 years in 10 f i earlier than=- l November 9 ; October 28 ; October 19 F I 5 years in 10 earlier than-- ; November 19 1 November 7 Octnhor 9R 104 Soil survey Dumberland and Hoke Counties, North Carolina TABLE 3•--GROWING SEASON [Recorded in the period 1951-73, Fayetteville, North Carolina, in Cumberland County] Daily minimum temperature ' during growing season Probability i Higher ; Higher ; Higher i than ; than ; than 240 F i 280 F . 320 F. Days i Days Days 9 years in 10 i 231 i 202 175 8 years in 10 ; 215 i 215 , 189 ' i ? 5 years in 10 ; 270 ? 239 214 , 2 years in 10 i 295 i 262 i 239 1 year in 10 i 308 275 ; 253 [Recorded in the period 1951-73 at Pinehurst, North Carolina, in Moore County] Daily minimum temperature i during growing season i Probability i Higher , Higher I• Higher ' than i than i than Z40. F. i 280 F i. 32° F Da Z40.. Days i Davy 9 years in 10 i 228 i 210 i 180 8 years in 10 ; 238 i 216 189 205 5 years in 10 i .258 i 228 ' i ; 2 years in 10 1 278 i 240 ; 221 247 i 229 1 year in 10 G 288 I 105 Curnberiand and Hoke Counties, Norm Cardina soil is suited to loblolly pine. The dominant trees a lolly pine, sweetgum, yellow-poplar, and white ok.he main understory includes holly, sourwood, red -maple, and dogwood. Wetness restricts the use of equipment and damages seedlings. This soil is suited to most urban and recreational uses. Wetness and slow permeability are the main limitations: Erosion can be a problem on slopes if disturbed sites are not revegetated promptly. This soil is in capability subclass llle and woodland suitability group 3w. CT-Croatan muck. This nearly level, very poorly drained, organic soil is mostly in large, oval depressions the southeastern part of Cumberland 25 be difficult during very wet periods when the organic surface layer becomes soggy. Croatan soil is poorly suited to trees. Because the soil u is poorly suited to other uses, many areas of it probably will remain in native woodland for many years. The dominant trees are pond pine, water tupelo, baldcypress, loblolly pine, sweetgum, swamp tupelo, and Atlantic white-cedar. The understory includes sweetbay, greenbrier, and gallbeny.. In, its natural, undrained state, R this soil provides good habitat for wetland wildlife. This soil is poorly suited to most urban and recreational uses. Wetness and low strength are the main limitations. This soil is in capability subclass Vliw and woodland suitability group 4w. or Carolina bays in County. Most areas of this unit have thick, almost De_.Deloss .loam: This nearly level, very poorly impenetrable undergrowth; therefore, the soils were examined mostly along canals, trails, and loggirig roads. drained soil is on terraces of the Cape Fear and Lower In selected areas, transects were made across the land, Little Rivers and their tributaries in Cumberland County: and borings- were made at specific points to verify the Individual ua and ra gof this nit gene all areore long and acres soils. The boundaries of the soils were drawn from limited field observations, using aerial photographs as in size the surface layer is black loam 10 inches aids for interpretation. Although this unit-was mapped Typically, with fewer detailed observations than were most other thick The subsurface layer is dark grayish brown loamy units in the survey, the resulting delineations meet the sand 3 inches thick. The subsoil to a depth of 72 inches needs for the major anticipated uses of the soil. is grayish brown, light brownish gray, and light gray Individual areas of this unit range from 100 acres to sandy clay loam in the upper part and gray sandy loam than 500 acres in size. in the lower part pical[y, the soil is black muck to a depth of 37 Permeability is moderate. Reaction ranges from very acid all h The F` es. The underlying material to a depth of 80 inches strongly asonal highhwaterhtablle is at or near the surface during -=;:> dark gray sandy loam. 'Permeability is slow to moderately rapid. Where the the winter and early in spring. This soil is subject to rare soil is drained, permeability is moderate in the organic flooding, are small areas of layer and moderate or moderately slow in the mineral Included with this soil in, mapping better drained Roanoke and Where soils and more layer. Reaction is extremely acid, except where the clayey Cape e Fear soils. Also included are small areas of surface had been limed. Except where the soil is drained, P .the seasonal high water table is at or near the surface sandy soils that have thin subhorizons high in organic from 8 months to the full year. matter content. These sandy soils are on small, narrow, Included with this soil in mapping are small areas of slightly elevated ridges that have distinctive, gray or white surfaces. Johnston, Torhunta, Lynn Haven, and Leon soils. All of these are mineral soils. They typically are on the outer Several large areas of this soil have been cleared to edges of oval-shaped delineations of Croatan soils. They grow corn and soybeans. The rest are in woodland. may be in slightly elevated areas located randomly within This soil is suited to growing cultivated crops, such as rhapped areas. Also included are small areas of similar cork, soybeans, and small grains. Good yields are soils that have an organic surface tier thinner than. 16 common n drared and protected l which ha eg. Open inches or thicker than 51 inches. These soils are properly randomly intermingled with Croatan soil. Included soils ditches .are the most common method used to drain this make up less than 20 percent of most unit. soil. Most areas of this soil are in woodland. A small Delos§ soil is well suited to grasses and legumes for acreage has been cleared for growing corn and hay and pasture. If this soil is used for pasture, proper soybeans. stocking rates, pasture rotation, timely deferment of This soil is poorly suited to growing cultivated crops grazing, and restricted use during wet periods help to anal to pasture. Wetness is the main limitation. If the soil keep the pasture and soil in good condition. Grazing : is drained, com and soybeans can be grown. Suitable when the soil is too wet can cause surface compactiari " drainage outlets, however, usually are unavailable. and poor filth. This soil is suited to hardwoods and pines- Water m. fetness also limits the use of this soil for pasture or spy. Even with proper drainage, grazing probably would tupelo and sweetgum can be grown without artificial r.. +iri r ?nr?m m®arm?® 74 Soil Survey Ap-O to 7 inches; brown (1 CYR 5/3) loam; weak fine granular structure; friable; common fine and medium roots; strongly acid; clear smooth boundary. -.W-7 to 23 inches; yellowish brown (10YR 516) clay; moderate fine and medium angular blocky and subangular blocky structure; firm, sticky, plastic; common fine and medium roots; few discontinuous clay films on faces of'peds and in. pores; very shiny ped faces; very strongly acid; gradual wavy boundary. Bt2-23 to 44 inches; yellowish brown (10YR 5/4) clay; common medium distinct gray (1 CYR 611) mottles; moderate medium angular and subangular blocky structure, firm, sticky, plastic; few fine and medium roots; few discontinuous clay films on faces of ,peds and in pores; very shiny ped faces; very strongly acid;_ gradual wavy boundary.' Cg1-44 to 58 inches; gray (10YR 611) clay, common fine prominent strong brown (7.5YR 5/8) mottles; massive; firm, sticky, plastic;-very strongly acid; gradual wavy boundary. Cg2-58"t6 80 inches; gray (1OYR 6/1) clay loam; common fine distinct strong brown (7.5YR 5/6) mottles; massive; firm, sticky, plastic; very. strongly acid. - The loamy and clayey horizons are 40 to 60 inches deep to stratified deposits of the Coastal Plain. Reaction is very strongly acid or strongly acid, except where the surface has been limed. The A or Ap horizon has flue of 10YR, value of 5, and chroma of i through 3; or it has value of 4 and chroma of 1 or 2. The E horizon, where present,, hag hue of 1 CYR, value of 6 or 7, and chroma of 3 or 4. The BA horizon, where present, has hue of 1 CYR or 2.5Y, value of 5 or 6, and chroma of 4. It is loam, clay loam; or silty clay loam. The Bt horizon has hue of 10YR, value of 5 or 6, and chroma of 4 through 8; hue of 2.5Y, value of 5 or 6, and chroma of 4 through 6;'or hue of 7.5YR, value of 5, and ch.rorna of 6 through 8. The lower part of the Bt horizon is mottled with gray, brown; or red, or it is dominantly gray. The Bt horizon is clay, silty clay, silty clay loam, or clay loam. The Cg horizon is gray with red, yeitow, or brown mottles. It is clay, clay loam, sandy clay loarri, or sandy loam-. Croatan Series The Croatan series consists of very poorly drained organic soils that formed in highly decomposed organic- material underlain by loamy sediment. The Croatan soils are in the Carolina bays Slope is less than 2 percent. Typical pedon of Croatan muck, in Cumberland County, approximately 15 miles southeast of Fayetteville, 1:1 miles northeast of the intersection of State Road 2041 and 2042 along State Road 2041, and 1.1 miles southeast, in a large bay.- ,- Oat-0 to 4 inches; black (10YR 2/1 broken face and rubbed) sapric material; about 10 percent fibers unrubbed and 3,-percent rubbed; moderate fine granular structure; very friable; many fine and medium roots; common grains of clean sand; about 50 percent organic material; extremely acid; gradual wavy boundary. . Oa2--4 to 37 inches; black (1 OYR 2/1 broken face and rubbed) sapric material; about 8 percent fibers unrubbed; less than 4 percent rubbed; massive; very friable; common medium roots; few grains of clean sand; about 50 percent organic material; extremely acid; gradual wavy boundary. Cg-37 to 80 inches; dark gray (1OYR 4/1) sandy loam; massive; friable; extremely acid. Croatan soils have organic horizons that total 16 to 51 inches in thickness: They are extremely acid, except where the surface has been limed. Logs, stumps, and fragments of wood make up 0 to 10 percent of the organic tiers. Fiibet content is less than 25 percent unrubbed and less than 10 percent rubbed: The underlying mineral horizon is extremely acid through slightly acid. The organic tiers have hue of 7.5YR through 5Y, value of 2 or 3, and chroma of 0 to 2. They typically are - rriassive under natural conditions: When drained and cultivated; granular or blocky structure develops in all.-'or part of the organic tiers. The mineral horizon-has hue of 7.5YR through 5Y, value of 2 through 6, and chroma of 1 through 3. It typically is. sandy loam or sandy clay loam: Some pedon§ contain thin strata of sand or loamy sand. Delass Series The Deloss series consists of very poorly drained soils that formed in loamy sediment on terraces along the Cape Fear and Lower Little-Rivers' These soils are in Cumberland County. Slope is less than 2 percent. . Typical pedon of Deloss loam, in Cumberland County, is 2 miles south of Fayetteville on N.C. Highway 87, 0.3 mile west on East Mountain- Drive, 150 feet south of the road: Ap=O to 10 inches; black N 210) loam; weak fine granular structure; friable; strongly acid; abrupt smooth boundary. E-10 to 13 inches; dark grayish brown (10YR 4/2) loamy sand; weak medium granular structure; friable; strongly acid; clear smooth boundary. Btg1-13 to 24 inches; grayish brown (10YR 5/2) sandy clay loam; weak medium subangular blocky structure; friable; common fine flakes of mica; few medium pockets of sandy loam; strongly acid; gradual wavy boundary. TABLE 15---PHYSICAL AND CHEMICAL PROPERTi-S OF THE SOILS Symbol < means less than; > means more than. Entries under "Erosion factors--TIT apply to the entire profile. Entries under "Organic matter" apply only to the surface layer. Absence of an entry indicates -that data were not available or were not estimated] -name and 1 Depth 1 Permeability ;Available; Soil 1 symbol i ; ; water ireaction; capacity 1 i A--------------; 0-il i 2.0=6.0 ltavista ; 11-37 ! 0.6-2.0 ! 37-80 1 --- ?` I 1 ![uA------=------ 1 0-25 ! >6. 0 ,Atitryville 1 25-39 1 2.0-6.0 i 39-59 i >6.0 1 59-80 ! ! 0.6-2.0 ! AYB-=------------l. 0-13 ! 2.0-6.0 Aycock ! 13-80 1 0.6-2.0 i BaB, BaD=--=-----1 l 0-25 1 >6.0 Blaney 1 25-34 ! 0.2-0.6 ', 34-80• 1 i 0.2-0.-6 1 Blaney----------1 0-25 ! >6.0 1 25-34 ! 0:2-0.6 ; 34-80 1 0.2-0.6 I Urban land. , ! ! BrB-------- ------i 0-6 i 2.0=6.0 Bragg ! 6-30 ; 0.2-0.6 1 30-80 1 0.2-0.6 ! ----1 ! 0-9 t 6.0=20 tters- 1 9-37 1 2.0-6.0 ! 37-58 1 6.0-20 1 58-80 1 0.6-2.0 By---------------; 0-18 ! 0.6-2.0 Byars ! ! 18-80 1 ! 0.06-0.2 CaB, CaD--------- 1 0-20 .1 6.0-20 Candor ! 20-30 ! 6.0-20 ! 60-80 1 0.6-2.0 i Cf-------------- -', 1 0-16 1 o.6-6•.0 Cape Fear ! 16-52 1 0.06-0.2 1 52-62 1 ! --- ! Ch---------------! 0-25 ! 6.6-2.0 Chewacla 1 25-48 ! 0.6-2.0 ; 48=64 1 0.6-2.0 Co--------------! 0-7 ; 0.6-2.0 Coxville 1 7-55 1 0.2-0.6 1 55-72 1 --- ! CrB-------------- ! ', 0-7 ! 0.6-2.0 Craven ! 7-58 ; 0.06-0.2 ! 58-80 1 , 0.2-6.0 i CT--------------- i , 0-37 1 0.06-6.0 Croatan 1 37-80 ! 0.2-6.0 De---- =----------i 0-13 i 2.0-6.0 Deloss ; 13-48 1 0.6-2.0 , ! 48-72 1 ', --- See footnote at end of table. Shrink-swell ! potential ; ! Erosion i factors ; Organic i ; matter 1 Infin i pn -i + + ' i r + - ;0.12-0.2014.5-6.0 1Low------------ ' ! 0.24 10.i2-0.2014.5-6.0 ;Low------------ ! -=- ! --- l--------------- ! 0.24 ', ---- 10.D4-0.•0914.5-6.5 ]Low------------ 1 1 0.10 10.08-0-1314.5-5.5 1Low---- -------- 0.10 10.03-0:0814.5-5.5 !Low --------- --= 1 0:10 10.10-0.1514.5-5.5 !Low------------ i 1 0.17 , i i 10.15-0.2014.5-6.0 1Loii=------------ ' 1 0-37 10.15=0.2014.5-5.5 iLow------------ 1 0.43 10.05-0.0614.5-5.0 ;Low------------ ! 0.15 10.05-0:1014.5-5.5 !Low------------ ! 0.28 10.03-0.0814.5-5.5 ;Low---=-------- ' ! 0.28 ' ;D.03-0.06;4.5-6.D 1Low=--=-------- 1 0.15 10.05-0:1014.5-5.5 ',Low------------ ! 0.28 10.03-0.0814•.5-5.5 !Low------------ ! 0.28 10.06-0.1214.5-5.5 !Low------------ ! 0.20 10.10-0.1514.5-5:5 lLow--=--------- 1 0.28 10.10-0.1514.5-5.5 !Low------------ ! 0.28 + 1 10.05-0-1014.5-5.5 !Low---------=-= 1 0.15 1 1.0.10-0.1414.5-5.5 1 Low ------------ 0 .15 ' 10.03-0.0814.5-6.5 ;Low------------ 0.10 1 . 10.10-0.1514.5-5.5 !Low------------ + 1 0 17 i I + 10.15-0.2013.6-5.5 !Low------------ 1 0.28 10.14-0.1813.6-5.5 ;Moderate------- 1 0.32 1 + 10.03-0.06!3.6=6.0 !Low--------- ! 0.10 10.06-0.1013.6-5.5 ]Low------------ ! 0.10 10.12-0.1613.6-5.5 !Low------------ ' i 1 0.20 ' 10.15-0.2214.5-6.5 lLow--=--------- l 0.15 ;0.12-0.2214.5=6.0 !Moderate------- 1 0.32 -- I 10.15-0.24 14.5-6.5 ;Low------------ 0.28 10.12-0.2014.5-6.5 1Low------------ 28 1 0. 10.15-0.2414:5-6.5 !Low---=-------- ' i 0.32 F 10.12=0.17!3.6-5.5 !Low------------ 1 0.24 10.14-0.1813.6-5.5 !Moderate------= ' ! --- 1--------------- 1 0.32 I ---- 10.12=0.1814.5-6.5 !Low------------ ! 0.37 ;0.12-0. 15!3.6-5.5 !Moderate------- ! 0.32 10.08-0.1413.6-5.5 !Low------------ 1 0.32 ' ' , I ! 10.35-0.451 <4.5 ;Low------------ ! ---- 10.10-0.1513.6-6.5 !Low------------ 1 ---- i i i ' 10.10-0.1614:5-6.5 !Low------------ 1 10.12-0.1814.5-5.5 !Low ------------ =------------= 24 It 0. ---- T i Pct ! 5 ! 5-3 , ! 5 i -5-1 , , ! 5 ! 1-4 , , 1 ! 5 1 <1 ! ! ! 5 ! 0-2 1 ! 5 1 5-2 , , , 5 ', 2-9 1 ! 5 1 .5-1 i ! 5 i 5-i5 i 5 ! 1-4 ! ! 5 2-4 , , ! ! 5 i .5-2 1 --- ! 25-60 ! 5 ! 2-5 ! , , TABLE 14.--FNGINEFRTNG.IND PROPPPT=FS--Ocitinued • 1 1 , name and IDepth! USDA texture I symbol Unified E ; anion irrag- lments AASHTO 1 > 3 finches i In i , 1 ct , 1 1 aB, CO-------! 0-20 !Sand---------! SP-SM, SM 1A-3, 1 0-2 andor ' ' ` ` A-2-4 120-30' loamy sand-----ISM, SP-SM IA-2-4 ! 0=2 130=60ISand- ---ISP-SM, SM !A-3, ! 0-7 1 1 1 1 A-2-4 1 '60-80'Sandy clay loam, IN, SM-SC, IA-4, 1 0-7 { + sandy loam, I SM I A-2, sandy clay. ! 1.A-7- 6 --~-- , I 1 1 ---! 0-161Laam----------lML, CL-M1,IA-4, , A-6 1 f - Cape Fear ! ! ! CL I I 116-52!Clay loam, clay, iML; CL, IA-7 I I ! silty clay. I MH, CH 152-6.2!Variable------ --! --- ! -- - 1 I • 1 .Ch ---- --! 0-2511oam------ IML, CL, !A-4, A-6 Chewacla ! ! I CL-ML I 125-6413andy clay loam, ISM iA=4, A-6 i clay loam, loam-ICI, SC, M11 Co-------- -=-! 0-7 !Loam------------ iSM, ML, 1A-4, A-6,! Coxville ! I i Cl-ML, C11 A-7 I 7-551C1ay loam, sandy lCL, CH IA-6, A-7 1 1 clay, clay. I 1: 155-721Variable --- i 1 --- -- 1 1 - ` 1CrB ---- --! 0-7 !Loam----------!ML, CL-YL,1A-4 Craven i I 1 SM, smI SC I ! 7-58ICl1iy, silty clay,ICH 1A•-7 I silty clay loam.: 158-80I3andy clay loam, ISM, SM-30,1A-2, A-4,1 sandy loam, 1 SC 1 A-6 1 I I ! clay loam. 1 1 1 ?, '`. CST-------- f 1 I 1 -i 0-371Muck !Pi ! - I -- Croatan 137-80!Sandy loam, fine, ISM, SC, 1A-2, A-4 I : sandy loam, 1 SM-SC I ' mucky sandy I 1 , I loam. __- De-------- _--? 0-131Loam ------ - ----- ISM, SM-SC,I1A-2, A-4 ! Deloss 1 I 1 1 ML, CL-ML1 113-48[Sandy clay loam, ,SIi-SC, SC,IA-4, A-6,1 1 ! clay loam, fine 1 CL=ML, CL! A-7 1 1 ! sandy loam. 148-721 Variable---------1 --- i - - 1 DgA--------- 1 --=! 0-4 !Fine sandy loam 1SM, SC, IA-2, A-4 1 Dogue ! I I SM-Sc I 1 4-55IClay loam, clay, 1CL, CH, SCIA-6, A-7 sandy clay loam.1 155-721Stratified sand 1SM, SC, !A-21 A=4,! r , to sandy clay I SP-SM, I A-1 1 ! loam. ! sM-Sc , I I 1 DhA----------- ! 0-11 !Loamy sand----ISM IA-2 Dothan 111-3BSandy clay loam, 1SM-SC, SC,IA-2, A-4, I 1 sandy loam. 1 SM - I A-6 138-72 !Sandy clay loam, 1314-SC, SC,1A-2, A-4, sandy clay. 1 SM, CL I A-6 I I _ , 1 , A-7 Dn------- ---- ! 0-10 I Loam------- : SM, SM-SC 1A-2, A-4- Dunbar 110-72!Sandy clay, clay ICL, CH 1A-6, A-7 loan, clay. ! 1 DpA------------! 0-6 (Sandy loam-----'SMSM-SC !A-2, 1 ' A-4 Duplin 1E, -CH, SCIA-6, 1 6-6513andy clay, clay A-7 loam, clay. : I r ! 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 ' 0 1 ' 0 1 0 1 , 1 - , 1 1 0 0 i ! 0 0 .100 100 9o-100 90-100 100 100 rcentage passi sieve number- 10 I 40 1- 200 100 155-90 1 5-15 100 165-90 110-25 I , 90=100155-90 1 5-15 190-100155-90 125-49 ! ! 195-100185-100160-90 ! ! ! 195-100190-100160-85 Liquid 1 Plas- limit ; ticity index c-G I. 1 ' NP --- ! i NP ! , <45 1 1 NP-25 1 20-40 1 3=15 41-65 i 15-35 1 i 1 NP-2b 98-1:00195-100;70-10055-90 1 25-40 96-100195-100160-80 136-76 I <35 1 NP-28 ? 1 i 1 1 1 100 1 100 185-97 146--75 1 1 100 ; 100 185-98 150=85 1 1 , r 1 I 1 , I r 1 100 1 100 175-100145-90 100 1 100 190-100165-98 1 100 195-100150-100115-49 1 r , , I 1 1 r 1 1100 1100 160-85 125-49 1 1 1 1 20-46 1 3-15 I 30-55 ! 12-35 , 1 <35 ! NP-7 ! 51-70 124-43 ! <35 i NP-15 I 1 ! , <30 1 NP-10 , 1 1 , 1 1 1 100 i 100 170-95 130-65 1 <35 1 NP-7 1 1o6 1 100 175-98 136-70 1 16-45 1 4-22 11 , I ? 1 I , , r 1 1 195-100175-100150-100120-50 1 <25 1 NP-10 195=100175-100165-100140-90 135-60 1 16-40 180-100160-100135-100110-40 1 <30-1 NP-10 195-100192-1001'60=80 113-30 I --- NP 195-100192-100158-90 123-49 I <40 1 NP-16 195-100,92-100170-95 b0-53 1 25-45 1 4-23 , 1 100 1 100 150-95 120-50 1 <30 I NP-7 1 100 1 100 1185-95 150-70 1 36-60 118-35 , t 1 1 i ! 1 1,00 1 100 167-98 120-49 1 <26 1 NP-7 1 100 19B-100180-100145-75 1 24-54. 1 13-35 I , I I ! 1 1 r 1 aee footnote at end of table. 164 Soil survey TABLE 17.--ENGINEERING INDEX TEST DATA [Dashes indicate oata were not available. NP means nonplastie] Grain size distribution ; i ;Moisture Classification density Soil name, Percentage i Percentage report number,, passing sieve-- ;smaller than--1 -? 114 xl horizon, and r` ; o a?1 s_ ?',s z depth in inches ! I 1 l 1 1 i l l , .,:1 I y C 1 ,-1 I E y 11 AASHTO {Unified{ No., No.1 No.! No.1.02 1.0051-0021 3 im -4 it -a °x i l 1 I 1 1 F I Cr I CO x r_ ? -4 1 1 1 4 1 10 t 1 40 1 -200] 1 mm 1 mm 1 mm 1 +1 , •••1 1 I 0 I1cl. o { 1 , r l 1• T 1 1 [ -.I 1 ?` f? 9 1D E t 7 I 1 ,t ! 1 1 i 1 i G 1 ;P ct i ? i ft3iPet ? ' 1 Blaney. • - 1 1 I t 1 1 l ! 1 1 1 t 1 1 f 1 1 1 f [ / 1 I , 1 t t t 1 I { 1 1 1 i 1 l I 1 1 I t I ; r. y (S74NCO93-008) I 11 1 i 1 11 1 1 I 11 1 1 1 ( 11 1 I 11 1 11 1 :.. 3 1 1 1 1 t , 1 1 ! 1 F , l E-----=---7 to 27 1 A-1-6 1 SP-SM 1100 1 92 1 40 11 9 1 7 1 4- i ' 2 1 - 1 NP 1 11411 12 ? Bt1------ 27 to 39 1 A-2-7 1 SM 1100 1 95 1 34 1 22 1 21 11 19 1 17 1 46 1 19 1201 12 Bt2------ 48 to 64 1 A-2-4 1 SC 1100 i 91 i 33 1 19 1 18 1 15 1 13 i 33 1 10 1 1241 11 1 t 1 , 1 1 I , i , 1 1 I 1 1 t 1 1 1 , 1 , t t 1 1 1 1 -"' } Cando.r:2 (874NC051-002) 1 , 1 1 , 1 1 1 1 1 1 , 1 t I 1 , { 1 l t 1 I l 1 1 1 1 t 1 1 ; E1-------=8 to 33 1 A-2-4 1 SP-SM 1100 1100 1 72 i 12 1 7.1 4 1 3 1 - 1 NP 11 1161 10 Btl------ 43 to 50 .1 A-2-4 1 SM 1100 1100 1 74 1 22 1 18 11 15 1 13 1 21 1 3 i 1161 10 Bt3=-----60 to 80 1 1 I A-7-6 i , [ SC 1100 -I ? 1100 1 1 1 81 1 1 1 1 I 41 1 , 1 33 1 1 i 30 1 , t 28 1 t 1 44 1 1 , 22 1 1 1 1121 { 1 16 Croa-tan:3 t 1 I l 1 1 1 1 1 1 , 1 f , , , ' , 1 I t 1 , 1 1 1 l 1 [ 1 1 i 1 i , I I 1 , t I , i 1 1 , i I 1 1 1 (S74NC051-003) 1 i i i i i Cg-------37 to 52 1 A-2-4 SM 1100 1100 A 76 1 25 i 10 1 5 1 4 1 - 1 NP i 1181 10 CS-------52 to 64 1 r 1 1 A-4 1 1 I t SM 1100 1 1 1 1100 1 1 , 1 81 I •1 1 i 1 i , 42 i , 1 , 1b 11 , 1 , 4 1 t I 1 3 11 I 1 , - 1 1 I NP 1 t 1 I I 12211 i i , 8 _ . Dothan:3 (S749CO93-009) 1 1 - t It 1 1 t 1 t 11 i I It t 1 i 11 i 1 t 11 t 1 1 1 Ap-=----- 0 to 7 11 A-.2-4 1 SM 1100 1100 t 77 1 27 i 13 1 7 1 4 11 - 1 NP 1 12011 09 Btl---- :-11 to 25 , A-6 i Sc 1100 1 99 1 77 1 46 1 36 1 30 1 26 1 33 1 16 1 1161 13 Bt2------ 25 to 38 1 A-7-6 1 CL 1100 1100 1 82 i 53 i 46 1 40 1 37 1, 45 1 23 If 108; 18 Bt3-----38 to 63 1 1 t A-7-6 1 1 I CL 1100 1 i. 1 99 1 I 11 81 I 1 1 1 1 50 1 , 1 43 1 , 1 37 1 r I 34 1 1 1 44 1. 1 1 19 1 [ i 10911 , t 17 Faceville: 1 { , , f 1 i 1 1 I l 1 1 , I 1 { , 1 , a 1 1 1 1 , I i I I I 1 1 I I 1 I I 1 (S741fCO51-006) i Ap7------- 0 to 7 1 A=2-4 1 SM 1100 1106 1 84 1 22 1 8 1 4 11 2 1 - i NP 11 11211 10 Bt1----_-17 to 52 .1 A-7-6 1 CL 1100 1100 1 84 1 52 11 46 i 43 1 41.1 49 i 23 1 1071 18 Bt2------ 52 to 70 1 1 1 I A-7-6 i I , Sc 1100 l 1 1100 , , i 86 1- , 1 t 1 46 1 i 1 37 1 [ t 34 1 i 1 33 1 1 , 46 1 l - I 21 1 1 i 1091 I 1 17 P'u ua q Y' (S74NCO93-o07) 1 1 t 1 1 , t 1 7 1 11 1 I 11 1 r I 1 1 1 1 1 I 1 1 1 1 1 , I 11 1 k 1 1 { 1 1 1 t 1 1 1 1 1 1 E---------3 to 29 1 A-2-4 1 SM 11100 1100 1 80 1 18 1 8 1 4 11 2 11 - i NP i 1151 10 Be-------29 to 42 11 A-2-4 11 SM 1100 1100 1 79 11 26 1 19 1 15 1 13 1 20 1 2 1 124, 10 - Bt1------ 42 to 60 1 t 1 A-7-6 - i 1 I SC 1100 l 1 1TOO 1 ? 1 81 1 ! 1 1 1 41 1 i , 34 1 1 1 30 1 f , 28 i 1 1 45 1 I 1 21 1 Y 1 •1071 , t 18 .. - - Woodington:3 . 1 1 , , 1 1 { 1 I 1 1 , t I , I t 1 , 1 l 1 1 i 1 I 1 1 I 1 { 1 1 1 1 I t 1 , I I 1 , 1 k f I 1 t 1 r , ' _ ` (S74NC051-004) A-------- 0 to 5 i A-2-4 1 SM 1100 1100 i 71 i 26 i 19 1 11 11 6 1 - i NP 'r 1081 14' _ Btg------11 to 28 i A-2=4 i SM 1100 1100 i 63 1 25.11 21 i 15 1 11 i 17 1 3 1' 1261 10 BCgl----- 28 to 37 i 1 1 A-2-4 1 , 7 SM 1100 , 1 110.0 { , i 65 1 . I 1 , ! 22 1 1 1 18 1 1 t 13 1 1 l 9 i ( I 14 1 1 { 1 12711 1 i 69 - I I I 1 1 1 1 f t f .1 I. 1 1 This pedon is a taxadjunct to the Blaney series, because the medium and ooarse sand content in the A hor izon an d t he liq uid l imit of the Bt ho rizon are higher tha n all owed for the series- Pedon l ocatedd, abo rt 8 miles west of Ra eford i n Hok e Cou nty:, from the _ -= intersection of Stat e Road 121 8 and 1214, 1.5 miles southe ast a long State Road 12 14 , the n 200 feet northwest o f the r oad . 2 Pedon located about 1 mi le eas t of Inter state 95 int erchange a t Hope Mil ls al ong State Road 2252, 0 .7 mile n ort heast along a fi eld road and 100 feet north of f ield road in an idle field in Cum berland Co unty. 3 This is a typi cal ped on for the ser ies. See the sec tion, soil series an d the ir 1'? morphology for the l ocation of the pedon. TopoZone - The Web's Topographic Map Page 1 of 2 A L-l ca; MI Target is UTM 17 709778E 3869088N - AUTRYVILLE quad FQuad Infol ht-tp:INTww_topozone.com/printasp?z=17&n=3869088&e=709778&s=50&size=m . 8/20/02 0 f -0M 43M mete mI i I € 3as I E TopoZone - The Web's Topographic Map Page 1 of 2 WRIB'Com; -- Tom- Target is UTM 17 714519E 3868292N - AUTRYVILLE quad rQuad Info1 http://ww«.topozone.com/print.asp?z=17&n=3868292&e=714 19&s=25&size=m 8/20/02 ? 0 Soo low I r_ t TT9 ?? '?.I? I r D -v T mm z 0 X Large outlet canal (i.e. Primary ditch) Barra Farms Cape Fear regional Mitigation Bank, Phase H Cumberland County, NC lEODBANK Land Management Gromp, Inc. September 2002 Pictures of site. Collector (i.e. Secondary) ditch with adjacent road bed to be graded. Existing PC fields in agricultural production. Barra Farms Cape Fear Regional IE(C®IBA NK Mitigation Bank, Phase H Land Management Group, Inc. Pictures of site. Cumberland County, NC September 2002 Cleared CC areas with existing lateral (i.e. Tertiary) ditches. D -v ?rn z 0 x Threatened and Endangered Species Report Barra Farms Cape Fear Regional Mitigation Bank, Phase II Cumberland County, NC Introduction Most of the 1812-acre Barra Farms Cape Fear Regional Mitigation Bank, Phase II . tract has been cleared and drained over the past several decades in order to convert Harrison Creek Bay into agricultural fields. Approximately 440 acres of Barra H are currently in use for agricultural production for a corn, soybean, and winter wheat rotation. An additional 260 acres have been historically cleared and ditched but are not currently in agricultural use. This area has become overgrown with opportunistic vegetative species such as broom sedge (Andropogon spp.), catbrier, and saplings of red maple and sweet gum (Liquidambar styracif lua). The remainder of the tract is in active silvicultural production, primarily for loblolly pine. On-going silvicultural activities include ditching, construction of temporary forestry roads, and logging. A search of the North Carolina Natural Heritage Program database did not locate any federal- or state-listed species within or adjacent to the site and it is unlikely that this site contains any rare species because of its intensive land use history. However, since certain sections of the tract are vegetated, the likelihood of observing federally protected species known to occur in the area is discussed below. 1 Ta1,iP. 1 Ti-qt nffedernlly protected species observed in Cumberland Countv. NC. Saint Francis' Satyr (Neonympha mitchellii francisca) This small species of butterfly is dark brown with conspicuous eyespots KEY: Status Scientific Name Common Name Status Animals Neonympha mitchellii francisci Saint Francis' Satyr E Picoides borealis Red-cockaded woodpecker E Plants Isotria medeoloides* Small-whorled pogonia T Lindera melissifolia Pondberry E Lysimachia asperulaefolia Rough leaf loosestrife E Rhus michauxii Michaux's sumac E Schwalbea americans American chaffseed T * Has not been observed within Cumberland County for over lu years. Definition Endangered A taxon "in danger of extinction throughout all or a significant portion of its range." Threatened A taxon "likely to become endangered within the foreseeable future throughout all or a significant portion of its range." Species on the lower surfaces of the wings (USFWS, 2002). According to USFWS data, only one metapopulation of this butterfly is known to exist in the sandhills of North Carolina, in Cumberland and Hoke Counties. Habitat for this satyr consists of wide, wet meadows containing a high diversity of wetland sedges. Although some wetland areas currently exist within the tract (enhancement and preservation areas), these areas are either densely vegetated or former cropland and would not support the Saint Francis' Satyr. 2 Red-Cockaded Woodpecker (Picoides borealis) The red-cockaded woodpecker is generally found in old-growth pine forests (minimum age of 80 to 120 years) and prefers mature longleaf pines with at least a 10" DBH for nesting and foraging (USFWS, 2002). Pine stands within this site are dominated by loblolly pine (Pinus taeda) and have been timbered periodically. Therefore, appropriate habitat for this species does not exist within the tract. Small-Whorled Pogonia (Isotria medeoloides) This perennial orchid has a smooth, hollow stem terminating in a whorl of five or six pale green leaves that are somewhat pointed (Russo & Sweeney, 2000).. One or two yellowish green flowers are produced at the top of the stem Flowering occurs from mid-May to mid-June, with the flowers lasting only a few days to a week. This species is generally found in open, dry, deciduous woods with acid soil. It should be noted that this plant has not been observed within Cumberland County for over 20 years. This tract contains cleared and drained agriculture fields and pine stands and would not support this species. Pondberry (Lindera melissifolia) This deciduous shrub grows to approximately six feet and spreads vegetatively by stolons. Pale yellow flowers appear in the spring and the bright red, oval-shaped fruit mature in the fall. Pondberry grows in wetland habitats such as the interior of bottomland hardwoods, poorly drained swampy depressions, and 3 but may be found in full sun. Because of the site's intensive land use history, appropriate habitat for this species does not currently exist within the tract. However, proposed mitigation activities, such as ditch-filling, could create suitable habitat for the plant. Rough leaf Loosestrife (Lysimachia asperulaefolia) Rough-leaf loosestrife generally occurs in the ecotones between pine savannas and pocosins, on moist to seasonally saturated sands, and on shallow organic soils overlaying sand (USFWS, 1993). Because this plant is shade- intolerant, moist areas exposed to sunlight, provide suitable habitat. Because of the site's intensive land use-history, appropriate habitat for this species does not exist within the tract. Michaux's Sumac (Rhus michauxii, Michaux's sumac is a low growing, deciduous shrub. Leaves emerge in April and May. Small greenish-yellow to white, four- to five- parted flowers are borne in dense, erect, terminal clusters from April to June. This species prefers full sun or the light shade of open stands. Therefore, it is found in open areas such as roadsides, powerline rights-of-way, and areas where forest canopies have been opened up by harvest, blowdowns, or hurricane damage (Russo & Sweeney, 2000). Timbered pine stands within the tract may provide suitable habitat for 4 Michaux's sumac. However, proposed grading activities will only be conducted within fields and, therefore, the project would not negatively affect this plant. American Chaffseed (Schwalbea americana) American chaffseed is an erect, fuzzy, perennial herb with unbranched stems and large, purplish-yellow, tubular flowers that are borne singly on the uppermost leaves. The leaves are alternate, lance-shaped to elliptic, and entire (Russo & Sweeney, 2000). Flowering occurs from April to June. This plant occurs in sandy, acidic, seasonally moist to dry soils. It is generally found in open, moist pine flatwoods, fire-maintained savannas, ecotonal areas between peaty wetlands and xeric sandy soils, and other open grass-sedge systems. Because of its previous, intensive land use, it is unlikely that suitable habitat for this species exists within this site. Summary A majority of the 1812-acre Barra Farms Cape Fear Regional Mitigation Bank, Phase II in Cumberland County, NC does not provide appropriate habitat for federally- protected species because of its intensive land-use history. However, it is possible that marginally-suitable habitat for Michaux's sumac exists within timbered pine stands, where harvesting may have created open areas within the forest canopy. Despite this possibility, proposed grading activities will not occur in pine stands and this species would not be affected by the mitigation actions. Therefore, it is the conclusion of this 5 l report that federally-protected species known to occur witbin Cumberland County will not be negatively affected by this proposed mitigation project. 6 References Amoroso, J.L. and A.S. Weakley. 1999. Natural Heritage Program list of the rare plant species of North Carolina. North Carolina Natural Heritage Program, Division of Parks and Recreation. N.C. Department of Environment and Natural Resources. 85 pp. Frantz, V.L. 1984. Reproduction biology of the Atlantic Coastal Plain endemic, Lysimachia asperulaefolia (Primulaceae). Report to the North Carolina. Plant Conservation Program, Raleigh. LeGrand, H.E. Jr. and S.P. Hall. 1999. Natural Heritage Program list of the rare animal species of North Carolina. North Carolina Natural Heritage Program, Division of Parks and Recreation. N.C. Department of Environment and Natural Resources. 91 pp. Russo, M. and J.M. Sweeney. 2000. Threatened and Endangered Species in Forests of North Carolina: A Guide to Assist with Forestry Activities. International Paper Co. U. S. Fish and Wildlife Service. 2002. Pondberry (Southern Spicebush) in North Carolina. http://nc-es.fws.gov/plant/pondberry html.. U.S. Fish and Wildlife Service. 2002. Red-cockaded woodpeckers in North Carolina.. http://ne-es.fws. g?ov/birds/rcwood. html. U.S. Fish and Wildlife Service. 2002. Saint Francis Satyr in North Carolina. h ://nc- es.fws. goy/insect/stfrancis.html. U.S. Fish and Wildlife Service. 1993. Technical draft rough-leaved loosestrife recovery plan. U.S. Fish and Wildlife Service, Atlanta, GA. 41 pp. 7 D -v =rn z 0 X -- CONTRACT PERFORMANCE BOND Date of Contract Performance Bond Execution: + Name of Principal: (Contractor) Name of Surety: Name of Contracting Body: Amount of Bond : Project Number : County Name (s) : KNOW ALL MEN BY THESE PRESENTS, That we, the PRINCIPAL and SURETY above named, are held and firmly bound unto the above named Contracting Body, hereinafter called the Contracting Body, in the penal sum of the amount stated above for the payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, administrators, and successors, jointly and severally, firmly by these presents. THE CONDITION OF THIS OBLIGATION IS SUCH, that whereas the principal entered into a certain contract with the Contracting Body, numbered as shown above and hereto attached: NOW THEREFORE, if the principal shall well and truly perform and fulfill all the undertakings, covenants, terms, conditions, and agreements of said contract during the original term of said contract and any extensions thereof that may be granted by the Contracting Body, with or without notice to the Surety, and during the life of any guaranty required under the contract, and shall also well and truly perform and fulfill all the undertakings, co?renants, terms, conditions, and agreements of. any and all duly authorized modifications of said contract that may hereafter be made, notice of which modifications to the surety being hereby waived, then this obligation to be void; otherwise to remain in full force and virtue. IN WITNESS WHEREOF, the.above-bounden parties have executed this ±nz trument under their several seals on the date indicated above, the name and corporate seal of each corporate party being hereto affixed and these presents duly signed by its undersigned representative, pursuant to authority of its governing body- -4- CONTRACT PERFORMANCE BOND (Seas of Surety Company) (Surety Company) By Attorney-in-Fact (Print, Stamp, or Type Signer's Name) Signature of Attorney-in-Fact Witness (Print or Type Signer's Name) Address of Attorney-in-Fact -5- CONTRACT PERVOMI.NCE BOND SIGNATURE OF CONTRACTOR (PRINCIPAL) (If a Corporation, use this sheet.) Ecosystems Land Mitigation Bank Corporation (Print full name of Corporation) (Seal) D7 rat : 11e, m `Ca.rT toV (Print or Type Signer's Name) f .Attest/'P'er Secretary or (Delete inappropriate title) (Print or Type Signer's Name) Affix Corporate Seal -6- (Delete inappropriate title) CONTRACT PAYMENT BOND Date of Contract pax,rment Bond Execa3tion Name of Principal: (Contractor) Name of Surety: Name of Contracting Body: Amount of Bond: Project Nbmber: County Name(s): KNOW ALL MEN BY THESE PRESENTS, that we, the PRINCIPAL and SURETY above named, are held and firmly bound unto the above named Contracting Body, hereinafter called the Contracting Body, in the penal sum of the amount stated above for the payment of which sum well and truly to be made, we hind ourselves, our heirs, executors, administrators, and successors, jointly and severally, firmly by these presents_ THE CONDITION OF THIS OBLIGATION IS SUCH, that whereas the principal entered into a certain contract with the Contracting Body, numbered as shown above and hereto attached: NOW THEREFORE, if the principal shall promptly make payment to all persons supplying labor and material in the, prosecution of the work provided for in said contract, and any and all duly authorized modifications of said contract that may hereafter be made, notice of which modifications to the surety being hereby waived, then this obligation to be void; otherwise to remain in full force and virtue. IN WITNESS WHEREOF, the above-bounden parties have executed this instrument under their several seals on the date indicated above, the name and corporate seal of each corporate party being hereto affixed and these presents duly signed by its undersigned representative, pursuant to authority of its governing body. -1- CONTRACT PAYMENT BOND (Seal of Surety Company) (Surety Company) By Attorney-in-Fact (Print, Stamp, or Type Signer's Xame) Signature of Attorney-ice.-Fact / witness (Print or Type Signer's Name) Address of Attorney-in-Fact -2- CONTRACT PAYMENT BOND SIGNATURE OF CONTRACTOR (PRINCIPAL) (if a Corporation, use this sheet.) Ecosystems Land Mitigation Bank Company (Print full name of Corporation,) (Seal) D. NI : it., M?Cc?r r(ay (Print or Type Signer's Name) Attest V -{ f c z Secretary ret - y (Delete inappropriate title) (Print or Type Signer's Name) Affix Corporate Seal ?e rresz?errs?, (Delete inappropriate title) I 1 MONITORING ANDAWNTENANCE BOND DOCUMENTATION MITIGATION MONITORING ANCE PERFORMANCE BOND Date bond executed: Effective date: Principal: Ecosystems Land Mitigation Bank Corporation 1555 Howell Branch Road Winter Park Florida 32789 Type of Organization: Individual Joint Ventum- Partnership X Corporation State of Incorporation: Florida Surety(ies): Cumberland Casualty & Sure Company 4311 West Waters Avenue, Suite 401 Tampa, Florida. 33614 Scope of Coverage: Task 3 of the Cape Fear Mitigation Banking Instrument ("MBI") for the Barra Farms property in Cumberland County, North Carolina ('Mitigation Project"). Total penal sum of bond: $200,000.00 Surety's Bond Number: XXX)Q= KNOW ALL PERSONS BY THESE PRESENTS, That we, the Principal and Surety(ies) hereto are firmly bound to the United States Army Corps of Engineers ("USACE")/State of North Carolina Department of Environment and Natural Resources - Wet Lands Restoration Program, Division of Water Quality ("DENR") in the above penal sum for the payment of which we bind ourselves, our heirs, executors, administrators, successors, and assigns jointly and severally; provided that, where the Sureties are corporations acting as co-sureties, we, the Sureties, bind ourselves in such sum jointly and severally" only for the purpose of allowing a joint action or actions against any or all of us, and for all other purposes each Surety binds itself, jointly and severally with the Principal, for the-payment of such sum only as is set forth opposite the name of such Surety, but if no limit of liability is indicated, the limit of liability shall be full amount of the penal sum. WI=REAS, said Principal is required to provide financial assurance for Task 3 of the MBI or the Mitigation Project as further described in the scope of coverage above, and WHEREAS, said Principal shall establish a standby trust fund as is required when a surety bond is used to provide such financial assurance; NOW, THEREFORE, the conditions of the obligation are such that if the Principal shall faithfully perform completion of Task 3 of the Mitigation Project as further described in the scope of coverage herein, for which this bond guarantees completion, in accordance with the NMI as such may be amended, pursuant to all applicable laws, statutes, rules, and regulations, as such laws, statutes, rules and regulations may be amended; Or, if the Principal shall provide alternate financial assurance and obtain the USACE/DENR's written approval of such assurance within 90 days after the date notice of cancellation is received by both the Principal and the USACE/DENR from the Surety(ies), then this obligation shall be null and void, otherwise it is to remain in full force and effect. Such obligation does not apply to any of the following: (a) Any obligation of Ecosystems Land Mitigation Bank Corporation under a workers' compensation, disability benefits, or employment compensation law or other similar law; (b) Bodily injury to an employee of Ecosystems Land Mitigation Bank Corporation arising from, and in the course of, employment by Ecosystems Land Mitigation Bank Corporation; (c) Bodily injury or property damage arising from the ownership, maintenance, use of, or entrustment to others of any aircraft, motor vehicle, or watercraft; (d) Property damage to any property owned, rented, loan to, in the care, custody, or control of, occupied by Ecosystems Land Mitigation Bank Corporation that is not the direct result of a construction or implementation activity for the NMI. (e) Bodily injury or property damage for which Ecosystems Land Mitigation Bank Corporation is obligated to pay damages by reason of the assumption of liability in a contractor agreement other than a contract or agreement entered into to meet the requirements of the NMI. The Surety(its) shall become liable on this bond obligation only when the Principal has failed to fulfill the conditions described above. Upon notification by the USACE/DENR that the Principal has been found in violation of the requirements of NMI for completion of Task 3 of the Nfitigation -Project for which this bond guarantees performance, the Surety(ies) shall within sixty (60) days of receiving such notice either perform completion in accordance with the MBI and pursuant to the written directions of the USACE/DENR or place the bond amount guaranteed for Task 3 of the Mitigation Project into the standby trust fund as directed by the DENR. Upon notification by the USACE/DENR that the Principal has failed to provide alternate financial assurance and obtain written approval of such assurance from the USACE/DENR during the 90 days following receipt, by both the Principal and the USACE/DENR, of a notice of cancellation of the bond, the Surety(ies) shall place funds in the total penal sum of this bond guaranteed for the completion of Task 3 of the Mitigation Project in accordance with the NMI into the standby trust fund as directed by the DENR. The Surety(ies) hereby waive(s) notification of amendments ro the MEI permits, applicable laws, statutes, rules and regulation and agrees that no such amendment shall in any way alleviate its (their) obligation on this bond. The Liability of the Surety(ies) shall not be discharged by any payment or succession of payments hereunder, unless and until such payment or payments shall amount in the aggregate to the penal sum of the bond, but in no event shall the obligation of the Surety(ies) hereunder exceed the amount of said penal sum- The Surety(ies) may cancel the bond by sending notice of cancellation by certified mail to the Principal and the USACE/DENR; provided, however that cancellation shall not occur during the 120 days beginning on the date of receipt of the notice of cancellation by both the Principal and the USACE/DENR, as evidence by the return receipts. The Principal may terminate this bond by sending written notice to the Surety(ies); provided, however, that no such notice shall become effective until the Surety(ies) receive(s) written authorization for termination of the bond by the USACE/DENR: Principal and Surety(its) hereby agree to adjust the penal sum of the bond yearly so that it guarantees increased or decreased completion costs provided that no decrease in the penal sum takes place without the written permission of the USACE/DENR. IN WITNESS WBEREOF, the Principal and Surety(ies) have executed this Performance Bond and have affixed their seals on the date set forth above. The persons whose signatures appear below hereby certify that they are authorized to execute this surety bond on behalf of the Principal and Surety(ies). - PRINCIPAL CORPORATE SURETY(]ES) ECOSYSTEMS LAND MITIGATION BANK CORPORATION D- Miller McCarthy, President (Corporate Seal) CUMBERLAND CASUALTY & SURETY COMPANY By::. President 4311 West Waters Avenue, Suite 401 Tampa, Florida 33614 Florida State of Incorporation Liability Limit:, MOb.000.00 (Corporate Seal) I MITIGATION BANK STANDBY TRUST FUND AGREEMENT TO DEMONSTRATE MONITORING NANCE FINANCIAL ASSURANCE TRUST AGREEMENT, the "Agreement,' entered into as of Date by and between Ecosystems Land Mitigation Bank Corporatio„ Name of the Owner or Operator a Florida _ Corporation (the Grantor,) Name of State Insert "corporation, partnership association, or proprietorship and SouthTrust Asset Management Company of Florida N.A. Name and Address of Corporate Tncrtee a National Bank (the Trustee.) Insert 'incorporated in the state of 'or' a national bank' WHEREAS, Grantor is the owner of certain real property in Cumberland County, North Carolina, and has received from the United States Army Corps of Engineers ("USACE")/State of North Carolina Department of Environment and Natural Resources - Wet Lands Restoration Program, Division of Water Quality ("DENR") that Mitigation Banking Instrument ("MBI") Number ("Permit") which authorizes the construction, operation and implementation of a wetland mitigation bank known as Cape Fear Mitigation Bank. WHEREAS, the USACE/DENR, have established certain regulations applicable to the Grantor, requiring that an owner of a wetland mitigation bank provide assurance that funds will be available when needed for the monitoring and maintenance of this mitigation bank if Grantor fails to monitor and maintain this-mitigation bank pursuant to the terms of the above referenced permit. WHEREAS, the Grantor has elected to establish a performance bond to provide such financial assurance for the monitoring and maintenance of the mitigation bank identified herein and is requested to establish a standby trust fund able to accept payments from the performance bond. WHEREAS, the Grantor, acting through its duly authorized officers, has selected the Trustee to be the trustee under this agreement, and the Trustee is willing to act as trustee, NOW, THEREFORE, the Grantor and the Trustee agree as follows: Section 1. Definitions. As used in this Agreement: (a) The term "Grantor" means Ecosystems Land Mitigation Bank Corporation who enters into this Agreement and any successors or assigns of the Grantor. (b) The term "Trustee" means SouthTrust Asset Management Company of Florida, N, A., the Trustee who enters into this Agreement and any successor Trustee. (c) The term "USACE/DENR" means the United States Army Corps of Engineers and the North Carolina Department of Environment and Natural Resources - Wet Lands Restoration Program, Division of Water Quality or any successor thereof. Section 2. Identification of Facilities and Cost Estimates. This Agreement pertains to the Facilities and cost estimates identified on attached Schedule A. ection 3. Standby Trust. This Trust shall remain dormant until funded-with the proceeds from the Surety Bond as listed on Insert "Letter of Credit' or 'Surety Bond' Schedule B. The Trustee shall have no duties or responsibilities beyond safekeeping this Document. Upon funding this Trust shall become active and be administered pursuant to the terms of this instrument- Section 4. Establishment of Fund. The Grantor and the Trustee hereby establish a trust fund (the Fund), for the benefit of the DENR_ The Grantor and the Trustee intend that no third party have access to the Fund except as herein provided- The Fund is established initially as a standby to receive payments and shall not consist of any property. Payments made by the provider of the Surety Bond listed on Schedule: B pursuant to the DENR's instructions are transferred to the Trustee and are referred. to as the Fund, together with all earnings and profits thereon, less any payments or distributions made by the Trustee pursuant to this Agreement- The Fund shall be held by the Trustee, _IN TRUST, as hereinafter provided. The Trustee shall not be responsible nor shall it undertake any responsibility for the amount or adequacy of, nor any duty to collect from the Grantor, any payments necessary to discharge any liabilities of the Grantor established by the DENR_ Section 5. Payment for Completing Monitorinz and Maintenance. The Trustee shall make payments from the Fund as the Director of the DENR's Division of Water Quality shall direct, in writing, to provide for the payment of the costs of completing monitoring and maintenance of Task 3 - Cape Fear Mitigation Banking Instrument including any modifications or amendments to that Banking Instrument. The Trustee shall reimburse such persons as specified by the DENR from the Fund for monitoring and maintenance expenditures in such amounts as the DENR shall direct in writing. In addition, the Trustee shall refund to the Grantor such amounts as the DENR specifies in writing. Upon refund, such funds shall no longer constitute part of the Fund as defined herein. The Fund may not be drawn upon to cover any of the following: (a) Any obligation of Ecosystems Land Mitigation Bank Corporation under a workers' compensation, disability benefits, or unemployment compensation law or other similar law; (b) Bodily injury to an employee of Ecosystems Land Mitigation Bank Corporation arising . frnm nnri in f1,P rnTtrcP ?-F oT,-...t..<.,... - t,_. ... T . I . _. . rom the ownership, maintenance, use, or (c) Bodily injury or property damage arising f entrustment to others of any aircraft, motor vehicle, or watercraft; (d) Property damage to any property owned, rented, loaned to, in the care, custody, or control of, or occupied by Ecosystems Land Mitigation Bank Corporation that is not the direct result of the monitoring and maintenance of the mitigation bank; (e) Bodily injury or property damage for which Ecosystems Land Mitigation Bank Corporation is obligated to pay damages by reason of the assumption of liability in a contract or agreement other than a contract or agreement entered into to meet the requirements of USACE Mitigation Banking Instrument. Section 6. Payments Comprising the Fund. Payments made to the Trustee for the Fund shall consist of cash or securities acceptable to the Trustee and shall consist solely of proceeds from the Surety Bc - id Insert "Lever of Credit" or "Surety Bond'. Section 7. Trustee Mana ement. The Trustee shall invest and reinvest the principal and income of the Fund and keep the Fund invested as a single fund, without distinction between principal and income, in accordance with general investment policies and guidelines which the Grantor may communicate in writing to the Trustee from time to time, subject, however, to the provisions of this Section. In investing, reinvesting, exchanging, selling, and managing the Fund, the Trustee shall discharge his duties with respect to the trust fund solely in the interest of the beneficiary, and with the care, skill, prudence, and diligence under the circumstances then prevailing which persons of prudence, acting in a like capacity and familiar with such matters, would use in the conduct of an enterprise of a like character and with like aims; except that: (a) Securities or other obligations of the Grantor, or any other owner or operator of the mitigation bank, or any of their affiliates as defined in the Investment Company Act of 1940, as amended, 15 U.S.C. 80a-2.(a), shall not be acquired or held, unless they are securities or other obligations of the Federal or a State government; (b) The Trustee is authorized to invest the Fund in time or demand deposits of the Trustee, to the extent insured by an agency of the Federal or a State government; and (c) The Trustee is authorized to hold cash awaiting investment or distribution uninvested for a reasonable time and without liability for the payment of interest thereon. Section 8. Commingiin!and Investment. The Trustee is expressly authorized in its discretion: (a) To transfer from time to time any or all of the assets of the Fund to any common, commingled, or collective trust fund created by the Trustee in which the Fund is eligible to participate, subject to all of the provisions thereof, to be commingled with the assets of other trusts participating therein; and (b) To purchase shares in any investment company registered under the Investment Company Act of 1940,15 U.S.C. 80a-1 et seq., including one which may be created, managed, underwritten, or to which investment advice is rendered or the shares of which are sold by the Trustee. The Trustee may vote such shares in its discretion. Section . Express Power of Trustee. Without in any way limiting the powers and discretion conferred upon the Trustee by the other provisions of this Agreement or by law, the Trustee is expressly authorized and empowered: (a) To sell, exchange, convey, transfer, or otherwise dispose of any property held by it, by public or private sale. No person dealing with the Trustee shall be bound to see to the application of the-purchase money or to inquire into the validity or expediency of any such sale or other disposition; (b) To make, execute, acknowledge, id deliver any and all documents of transfer and conveyance and any and all other instruments that may be necessary or appropriate to carry out the powers herein granted; (c) To register any securities held in the Fund in its own name or in the name of a nominee and to hold any security in bearer form or in book entry, or to combine certificates representing such securities with certificates of the same issue held by the Trustee in other fiduciary capacities, or to depositor arrange for the deposit of such securities in a qualified central depository even though, when so deposited, such securities may be merged and held in bulk in the name of the nominee of such depository with other securities deposited therein by another person, or to deposit or arrange for the deposit of any securities issued by the United States Government, or any agency or instrumentality thereof, with a Federal Reserve bank, but the books and records of the Trustee shall at all times show that all such securities are part of the Fund; (d) To deposit any cash in the Fund in interest-bearing accounts maintained or savings certificates issued by the Trustee, in its separate corporate capacity, or in any other banking institution affiliated with the Trustee, to the extent insured by an agency of the Federal or a State government; and (e) To compromise or otherwise adjust all claims in favor of or against the Fund. Section 1 . Taxes and E2Menses. All taxes of any kind that may be assessed or levied against or in respect of the Fund and all brokerage commissions incurred by the Fund shall be paid - from the Fund. All other expenses incurred by the Trustee in connection with the administration of this Trust, including fees for legal services rendered to the Trustee, the compensation of the Trustee to the extent not paid directly by the Grantor, and all other proper charges and disbursements of the Trustee shall be paid from the Fund. Section 11. Annual Valuation. The Trust shall annually, at least 30 days prior to the a statement confirming the value of the Trust. Any securities in the Fund shall be valued at market value as of no more than 60 days prior to the anniversary date of establishment of the fund. The failure of the Grantor to object in writing to the Trustee within 90 days after the statement has been furnished to the Grantor and the USACE/DENR shall constitute a conclusively binding assent by the Grantor, barring the Grantor from asserting any claim or liability against the Trustee with respect to matters disclosed in the statement. Section 12. Advice of Counsel. The Trustee may from time to time consult with counsel, who may be counsel to the Grantor, with respect to any question arising as to the monitoring of this Agreement or any action to be taken hereunder. The Trustee shall be fully protected, to the extent permitted by law, in acting upon the advice of counsel. Section 13. Trustee Compensation. The Trustee is authorized to charge against the principal of the Trust its published Trust fee schedule in effect at the time services are rendered. Section 14. Successor Trustee. The Trustee may resign or the Grantor may replace the Trustee, but such resignation or replacement shall not be effective until the Grantor has appointed a successor Trustee, the successor Trustee is approved by the USACE/DENR, and this successor accepts the appointment. The successor trustee shaII have the same powers and duties as those conferred upon the Trustee hereunder. Upon the successor trustee's acceptance of the appointment, the Trustee shall assign, transfer, and pay over to the successor trustee the funds and properties then constituting the Fund. If for any reason the Grantor cannot or does not act in the event of the resignation of the Trustee, the Trustee may apply to a court of competent jurisdiction for the appointment of a successor trustee or for instructions. The Trustee shall notify the USACE/DENR in writing of such event. The successor trustee shall specify the date on which it assumes administration of the trust in a ;writing sent to the Grantor, USACE/DENR, and the present Trustee by certified mail 10 days before such change becomes effective. Any expenses incurred by the Trustee as a result of any of the acts contemplated by this Section shall be paid as provided in Section 10. Section 15. Instructions to the Trustee. AII orders, requests, and instructions by the Grantor to the Trustee shall be in writing, signed by such persons as are designated in the attached Exhibi t A or such other designees as the Grantor may designate by amendment to Exhibit A The Trustee shall be fully protected in acting without inquiry in accordance with the Grantor's orders, requests, and instructions. AIl orders, requests, and instructions by the DENR to the Trustee shall be in writing, signed by the DENR's Division Director of Water Quality, or the designee, and the Trustee shall act and shall be fully protected in acting in accordance with such orders, requests, and instructions. The Trustee shall have the right to assume, in the absence of written notice to the contrary, that no event constituting a change or a termination of the authority of any person to act on behalf of the Grantor or the DENR hereunder has occurred. The Trustee shall have no duty to act in the absence of such orders, requests, and instructions from the Grantor and/or the DENR, except as provided for herein. Section 1 6. Amendment of Agrtment. This Agreement may be amended by an instrument in writing executed by the Grantor, the Trustee, and the USACE/DENR, or by the Trustee and the USACE/DENR if the Grantor ceases to exist. Section 17. Irrevocability and Termination. Subject to the right of the parties to amend this Agreement as provided in Section 16, this Trust shall be irrevocable and shall continue until terminated at the written agreement of the Grantor, the Trustee, and the USACE/DENR, or by the Trustee and the USACE/DENR, if the Grantor ceases to exist. Upon termination of the Trust, all remaining trust property, less final trust administration expenses, shall be delivered pursuant to the written agreement terminating the Trust &ction 18. Immunity and Indemnification. The Trustee shall not incur personal liability of any nature in connection with any act or omission, made in good faith, in the administration of this Trust, or in carrying out any directions by the Grantor or the USACE/DENR issued in accordance with this Agreement. The Trustee shall be indemnif ?d and saved harmless by the Grantor or from the Trust Fund, or both, from and against any personal liability to which the Trustee may be subjected by reason of any act or conduct in its official capacity, including all expenses reasonably incurred in its defense in the event the Grantor fails to provide such defense. Section 19. Choice of Law. This Agreement shall be administered, construed, and enforced according to the laws of the State of FIorida. ection 20. Interpretation. As used in this Agreement, words in the singular include the plural and words in the plural include the singular. The descriptive headings for each Section of this Agreement shall not affect the interpretation or the legal efficacy of this Agreement. IN WITNESS WHEREOF the parties have caused this Agreement to be executed by their respective officers duly authorized and their corporate seals to be hereunto affixed and attested as of the date first above written. ATTEST GRANTOR ECOSYSTEMS LAND MITIGATION BANK CORPORATION Signature D. Miller McCarthy, President (CORPORATE SEAL) ATTEST TRUSTEE SOUTHTRUST ASSET MANAGEMENT COMPANY OF FLORIDA, N.A. . Signature (CORPORATE SEAL) NOTARY ACKNOWLEDGMENT OF GRAN'10R'S SIGNATURE STATE OF FLORIDA COUNTY OF ORANGE .On this _ day of 1998, personally appeared D. Miller McCarthy, who being by me duly sworn, acknowledged said instrument to be his free act and deed. Mr. McCarthy is personally known to me, or has produced her (state) driver's license bearing number IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal. Signature Printed Name (NOTARIAL SEAL) NOTARY PUBLIC, STATE OF Commission expiration date Serial Number, If any NOTARY ACKNOWLEDGMENT OF TRUSTEE'S SIGNATURE STATE OF FLORIDA COUNTY OF PINELLAS On this _ day of 1998, personally appeared , who being by me duly sworn, acknowledged said instrument to be his/her free act and deed. is personally known to me, or has produced his/her (state) driver's license bearing number IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal. Signature Printed Name (NOTARIAL SEAL) NOTARY PUBLIC, STATE OF Commission expiration date D m z 0 x • :jF::f a : ` Ki ?'fY -.._ .. . - r::':.s • : f;::<v11; ? ? ' f e:: .. I ' „n a., .Y'a:sf'+w4q.?j..?• "h:7`.. a'.p? ::) ?• ,? .. Jk l?A'9"''1??5 a $?? D00O Z CRI: D ors=mrn-I N S.bF ?` 1?. ..? ? •.o ..?$• .. •.4 -°i.9•. `?p'y?+ '. _ • =fn 1. .y ?•N ?:u 7 ?a1 '!U? ?? Px ? r i10 ?: Z Ahr2{i I n- c o W OOM ?n y4?•. R 1E a mz Q? Rz K Q ° h ? ..1. ? •.. ?? ?:??'r Q • o an a3 gg'??. 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