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HomeMy WebLinkAbout20081367 Ver 1_Conetoe Buffer Restoration_20080715 Prepared for: ANNUAL MONITORING REPORT YEAR 3 (2008) CONETOE BUFFER RESTORATION SITE PITT COUNTY, NORTH CAROLINA (Contract Number D05026-1) ? nl'1? c NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES ECOSYSTEM ENHANCEMENT PROGRAM RALEIGH, NORTH CAROLINA r ~ ? l??COSstem?? Prepared by: Restoration Systems, L.L.C. 1101 Haynes Street, Suite 211 Raleigh, North Carolina 27604 And Axiom Environmental, Inc. RECEIVED JUN 2 0 2008 NC ECOSYSTEM ENHANCEMENTPROGRAM Willow Spring, North Carolina 27592 Axiom Environmental, June 2008 il!l ? 5 ?_008 Inc. ?;?acH EXECUTIVE SUMMARY Restoration Systems, LLC (Restoration Systems) has completed riparian buffer restoration at the Conetoe Buffer Restoration Site (hereafter referred to as the "Site") to assist the North Carolina Ecosystem Enhancement Program (EEP) in fulfilling restoration goals in the region. The Site is located approximately 10 miles northwest of Greenville, in Pitt County. This portion of Pitt County is located centrally within Tar-Pamlico River Basin 14-digit Targeted Local Watershed 03020103050050. The Site encompasses approximately 10.19 acres immediately adjacent to unnamed tributaries to Conetoe Creek. A total of 10.19 Buffer Mitigation Units, resulting from 10.19 acres of buffer restoration, were completed in February 2006. Prior to restoration, Site land use was characterized by spray fields utilized for sewage sludge application. The Site was cleared of native forest vegetation, ditched to reduce the impacts of groundwater on land use, and planted with herbaceous ground cover. Site streams were ditched and received periodic vegetative maintenance, resulting in eroding banks. Site reforestation, consisting of a Mesic Pine Flatwoods community, was implemented within the entire 10.19-acre Site. The primary goals of this buffer restoration project focused on reforestation of the Site with native species to 1) improve water quality; 2) enhance flood attenuation; 3) reduce sedimentation/siltation; 4) increase channel bank stability; 5) filter and reduce pollutants prior to entering Conetoe Creek; 6) serve as a wildlife corridor by providing connectivity to forested areas adjacent to the Site; 7) provide increased habitat for aquatic and terrestrial wildlife; 8) increase organic matter, carbon export, and woody debris in the stream corridor; 9) restore shade to open waters of the Site; 10) increase potential for appropriate mussel habitat; and 11) enhance macroinvertebrate species populations in the channel. As a whole, the densities of four vegetation plots across the Site were above the required 320 stems per acre with an average of 1432 tree stems per acre in the Third Monitoring Year (Year 2008). In addition, each individual plot met success criteria and had increasing species diversity with 8 to 10 species present within each plot. Conetoe Buffer Restoration Site page i Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) TABLE OF CONTENTS 1.0 INTRODUCTION .............................................................................................................. 1 2.0 VEGETATION MONITORING PROGRAM ................................................................... 3 2.2.1 Vegetation Success Criteria .................................................................................... 5 2.2.2 Vegetation Sampling Results and Comparison to Success Criteria ........................ 6 3.0 CONCLUSIONS .................................................................................................................6 4.0 REFERENCES ................................................................................................................... 8 LIST OF TABLES Table 1. Character Tree Species .................................................................................................... 5 Table 2. 2008 Vegetation Monitoring Data and Results ................................................................ 7 Table 3. Summary of Vegetation Plot Results ............................................................................... 6 LIST OF FIGURES Figure 1. Site Location ................................................................................................................... 2 Figure 2. Monitoring Plan .............................................................................................................. 5 APPENDICES Appendix A. Vegetation Plot Photographs Appendix B. Wildlife Observations Conetoe Buffer Restoration Site page ii Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) CONETOE BUFFER RESTORATION SITE ANNUAL MONITORING REPORT YEAR 3 (2008) PITT COUNTY, NORTH CAROLINA 1.0 INTRODUCTION Restoration Systems, LLC (Restoration Systems) has completed the restoration of riparian buffer at the Conetoe Buffer Restoration Site (hereafter referred to as the "Site") to assist the North Carolina Ecosystem Enhancement Program (EEP) in fulfilling restoration goals in the region. The Site is located approximately 10 miles northwest of Greenville, in Pitt County (Figure 1). The Site conservation easement encompasses 10.19 acres immediately adjacent to unnamed tributaries to Conetoe Creek within subbasin 03-03-03 of the Tar-Pamlico River Basin. The Site is part of United States Geological Survey Catalogue Unit 03020203 of the South Atlantic/Gulf Region and is encompassed within a Hydrologic Unit that has been targeted for restoration needs (Targeted Local Watershed 03020103050050) (EEP 2004). A Detailed Buffer Restoration Plan was completed for the Site in July 2005. The plan outlined methods designed to reforest the entire 10.19-acre Site with native species. Prior to implementation, the entire Site was composed of sewage sludge spray fields. The following objectives provide 10.19 Buffer Mitigation Units as requested under the EEP Request for Proposal (RFP) 16-DO5026 dated October 22, 2004: Restoration of approximately 10.19 acres of riparian buffer through planting with native forest species. Protection of the Site in perpetuity with a conservation easement which is held by the State of North Carolina. The primary goals of this buffer restoration project focused on reforestation of the entire 10.19- acre Site with native species to 1) improve water quality; 2) enhance flood attenuation; 3) reduce sedimentation/siltation; 4) increase channel bank stability; 5) filter and reduce pollutants prior to entering Conetoe Creek; 6) serve as a wildlife corridor by providing connectivity to forested areas adjacent to the Site; 7) provide increased habitat for aquatic and terrestrial wildlife; 8) increase organic matter, carbon export, and woody debris in the stream corridor; 9) restore shade to open waters of the Site; 10) increase potential for appropriate mussel habitat; and 11) enhance macro invertebrate species populations in the channel. The primary goals were accomplished by: 1. Removing nonpoint sources of pollution associated with land use practices including a) removal of spray field application of sewage sludge into and adjacent to Site streams and b) cessation of broadcasting fertilizer, pesticides, and other agricultural materials into and adjacent to Site streams. 2. Reducing sedimentation within onsite and downstream receiving waters through a) a reduction of bank erosion associated with ditch vegetation maintenance, b) filtering and reducing surface runoff from adjacent spray fields, and c) planting a forest buffer adjacent to Site streams. Conetoe Buffer Restoration Site page 1 Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) 'I M'W' r , 1 ? y 4i... - ? QI ?r f 1 - r 4s ?_ • I ? ? ? ?3'y J r l:. ... r . 11 M1 xl 64 MIUY ? A .. ? Ij ? ?, r Jl ?' i _ _ .L.. -/'f rt `1 a '•r d' \ ?'\ ngs?_J J /`_.[-? Qw,1 {?4r nn tr. x c ac: .v, .4 r 41 IVY ZIr Site Location !,` "?? Q?.,q..`• .lt, ' -? ?; `? ? / to q.?E '. ,f , +Fw a a zrz ti t ?o? _ dt, ia? x, a f? 'r % ?^ a ? 1 ?"1 .?M rvrvln fA I '? ? R1. 4 J`M14 .l _?_ F. r A r ' Sy 1 H1? fJ ? 13 µ+?' _ i 121 ,a,p4 d. •?. J.,? \ .4. _ FO a ? ? r ? -.____ nub 26 r 4.. . ^?py ??j( lY ? ? n ? ? I !F 1 n5) ,mot -yyt,'?o?Ille 0 1 mi. 4 mi. 1:158,400 Source: 1977 North Carolina Atlas and Gazetteer, pp. 43. Dwn. by: 2128 RoWand Pond Dr SITE LOCATION Ckdby: CLF FIGURE WillowS"Vs, NC 27%2 WGL (919) 215.1 OW CONETOE BUFFER RESTORATION SITE Date: (919) 341-IM fax Pitt County, North Carolina June 2008, Axiom Emkonmenlal, Inc. 11 11 Project: 08-007 3. Increasing floodwater attenuation by revegetating Site streams thereby promoting increased frictional resistance on floodwaters crossing the Site. 4. Providing wildlife habitat including a forested riparian corridor. As constructed, the Site provides 10.19 acres of riparian buffer restoration (10.19 Buffer Mitigation Units). On June 27, 2005, EEP contracted with Restoration Systems to complete restoration of the Site. A Detailed Buffer Restoration Plan was completed for the project in July 2005. Upon completion of the detailed plan, Carolina Silvics planted the Site during the first week of February 2006. An As- built Mitigation Plan was completed by Axiom Environmental, Inc. in May 2006. Information on project managers, owners, and contractors follows: Owner Information Restoration Systems, L.L.C. George Howard and John Preyer 1101 Haynes Street, Suite 211 Raleigh, North Carolina 27604 (919) 755-9490 Designer and Monitoring Performer Information Axiom Environmental, Inc. W. Grant Lewis 2126 Rowland Pond Drive Willow Spring, North Carolina 27592 (919) 215-1693 2.0 VEGETATION MONITORING PROGRAM Planting Contractor Information Carolina Silvics Dwight McKinney 908 Indian Trail Road Edenton, North Carolina 27932 919) 523-4375 Monitoring procedures for vegetation were designed in accordance with Stream Mitigation Guidelines (USACE et al. 2003) and the Draft Internal Guidance for Vegetation Monitoring Plans for NCWRP Riparian Buffer and Wetland Restoration Projects (undated). A general discussion of the plant community restoration monitoring program is provided. Monitoring of restoration efforts will be performed for a minimum of 5 years or until success criteria are fulfilled. The locations of monitoring plots are depicted in Figure 2. During the first year, vegetation received visual evaluation on a periodic basis to ascertain the degree of overtopping of planted species by nuisance species. Subsequently, quantitative sampling of vegetation will be performed between June 1 and September 30 of each monitoring year for five years or until the vegetation success criteria are achieved. Conetoe Buffer Restoration Site page 3 Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) ¦ *A w CV a ? a o •- F- a. a? o °? O n o z `•° -o F- j L U .. 1 C LO _ W N N Lo (7 t O W„ •-o O `. U II W(Z) M i >o . (O 0 I- 00 0 00 WN LL ? O U N ? 0 a o a` w F-- U) z O? zQ Q0? m aJ0 ?- U z o z O w ti c zLL o 0 C CO C) C W a O I- w z O U C o-. N °z LO rgw_ O s e Four sample transects were installed within planted areas of the Site shortly after replanting to equally represent the Site (Figure 2). Each transect is 300 feet in length and 8 feet in width (0.055 acre). In each sample plot, vegetation parameters to be monitored include species composition and species density. Visual observations of the percent cover of shrub and herbaceous species were also noted. Photographs of the four vegetation plots are included in Appendix A. 2.2.1 Vegetation Success Criteria Success criteria have been established to verify that the vegetation component is dependent upon density and growth of "Character Tree Species." Character Tree Species include planted species, those observed in forest stands near the Site, and those listed in the Mesic Pine Flatwood community descriptions from Classification of the Natural Communities of North Carolina (Schafale and Weakley 1990). All planted canopy tree species and those identified in Schafale and Weakley (1990) will be utilized to define "Characteristic Tree Species" as termed in the success criteria. Table 1. Character Tree Species Planted Species Examples of Mesic Pine Flatwood Species* River Birch (Betula nigra) Mockernut Hickory (Carya alba) Loblolly Pine (Pinus taeda) Sand Hickory (Carya pallida) White Oak (Quercus alba) Sweetgum (Liguidambar styraciflua) Southern Red Oak (Quercus falcata) Longleaf Pine (Pinus palustris) Swamp Chestnut Oak (Quercus Bluejack Oak (Quercus incana) Water Oak (Quercus nigra) Post Oak (Quercus stellata) Cherrybark Oak (Quercus pagoda) Blackjack Oak (Quercus marilandica) Willow Oak (Quercus phellos) Black Cherry (Prunus serotina) Northern Red Oak (Quercus rubra) * Species described in Schafale and Weakley (1990) and observed within adjacent sites; this is not a comprehensive list. Vegetation success criteria for the Site will be the existence of an overall density of at least 320 stems per acre five years after the initial planting. Additional seedlings are expected to be recruited to the Site from adjacent forested communities. These individuals may also be counted in the overall success rate for the Site provided they are native hardwood tree species. If vegetation success criteria are not achieved based on average density calculations from combined plots over the entire restoration area, supplemental planting may be performed with Character Tree Species. Supplemental planting will be performed as needed until achievement of vegetation success criteria. No quantitative sampling requirements are proposed for herb assemblages as part of the vegetation success criteria. Development of floodplain forests over several decades will dictate the success in recruitment and establishment of desired understory and groundcover populations. Visual Conetoe Buffer Restoration Site page 5 Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) estimates of the percent cover of herbaceous species will be noted and documented through periodic photographs. Photographs of the vegetation plots are included in Appendix A. 2.2.2 Vegetation Sampling Results and Comparison to Success Criteria Quantitative sampling of vegetation was conducted in June 2008. Results are provided in Table 2. Vegetation success criteria for year 3 (320 stems per acre) were exceeded for the 2008 annual monitoring year with 1432 tree stems per acre across the Site. In addition, each individual plot met success criteria and had increasing species diversity with 8 to 10 species present within each plot. 3.0 CONCLUSIONS As a whole, vegetation plots across the Site were above the required 320 stems per acre with an average of 1432 tree stems per acre in the Third Monitoring Year (Year 2008). In addition, each individual plot met success criteria and had decent species diversity with 8 to 10 species present within each plot. Average stems per acre and species diversity has increased since the first year of monitoring. Table 3. Summary of Vegetation Plot Results Stems/Acre Coun tin Towards Success Criteria Plot Year 1 2006 Year 2 2007 Year 3 2008 Year 4 2009 Year 5 2010 1 764 945 1091 2 1473 2327 1345 3 655 1309 1236 4 1673 1655 2055 Average Plots 1-4 1141 1547 1432 Documented animal species that utilize the developing wetland ecosystem are listed in Appendix B. Conetoe Buffer Restoration Site page 6 Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) H z d H A N Z W? I? o Hz 0 O ?I H d H W CJ 00 0 0 N N N C U N N 0 6 4 Y a 0 a U cd W N O z Fw VJ d ? bA u ? r\i, D O ' tr) O in a\ N N N 00 W te) N o N L L p ) tn U 3 U v tom. H d h kn N Vl Ol, h N et l? N N OC a, h N ? o N ff ti "q a - - N N N M c? N M CD cq kn M CO p L ar C .ti M ,? 00 M ,--? M b ? M rl ? .? a ,.y ?••? N d M r+ N 00 00 M N a N .? N '1 M M O ? 0 M It H ? b 14 O a v cue W F U F U C7? O y °u ( t(U G C L6 G O d ^O aS 5?+1 i ? Q ? (A Q a -- 3 o i ° 8 a . c q c N U U a°i x o 3 ° i o (U O W ai y ?? aS .. cl = y L .J? . . 7 .? ?? U N L 80 .0 06 0 1 5 Ll y % CO) h y y cl ? h h h h h h h h H • '?" ice. U ? O N • ? ? .{ .1' '.S '.S .l' .? Z' ? d • ? O o ? ? ? QO U ti N ? rY y ? F H U ? U ? 4.0 REFERENCES Ecosystem Enhancement Program (EEP). 2004. Tar-Pamlico River Basin Watershed Restoration Plan. North Carolina Department of Environment and Natural Resources, Raleigh. North Carolina Wetlands Restoration Program (NCWRP). Undated. Draft Internal Guidance for Vegetation Monitoring Plans for NCWRP Riparian Buffer and Wetland Restoration Projects. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. Schafale, M. P., A.S. Weakley. 1990. Classification of the Natural Communities of North Carolina: Third Approximation, NC Natural Heritage Program, Division of Parks and Recreation, NC DEM, Raleigh NC. United States Army Corps of Engineers (USACE), United States Environmental Protection Agency (USEPA), North Carolina Wildlife Resources Commission (NCWRC), Natural Resources Conservation Service (MRCS), and North Carolina Division of Water Quality (NCDWQ). 2003. Stream Mitigation Guidelines. State of North Carolina. Conetoe Buffer Restoration Site page 8 Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) APPPENDIX A VEGETATION PLOT PHOTOGRAPHS Conetoe Buffer Restoration Site Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) Conetoe Buffer Restoration Site Year 3 (2008) Annual Monitoring Vegetation Plot Photos Taken June 2008 Conetoe Buffer Restoration Site Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) 30 G1k? 4 APPPENDIX B WILDLIFE OBSERVATIONS Conetoe Buffer Restoration Site Annual Monitoring Report Restoration Systems, LLC Year 3 (2008) WILDLIFE OBSERVED AT SITE CONETOE RESTORATION SITE BIRDS*: August June 2006 2008 Red-tailed Hawk Buteo "amaicensis x Turkey Vulture Cathartes aura x x Northern Bobwhite Colinus vir inianus x Killdeer Charadrius vociferus x Mourning Dove Zenaida macroura x x Barn Swallow Hirundo rustica x Common Crow Corvus brach rh nchos x Eastern Bluebird Sialia sialis x x Starling Sturnus vul aris x Northern Cardinal Cardinalis cardinalis x Indigo Bunting Passerina c anea x American Goldfinch Cardeulis tristis x Field Sparrow S izella ussila x Red-winged Blackbird A elaius hoeniceus x REPTILES and AMPHIBIANS: Green Fro Rana clamitans x Black Snake -- x Bullfrog Rana catesbeiana x *Bird list: The Sibley Guide to Birds by David Allen Sibley. National Audubon Society. 2000. Chanticleer Press, Inc. August 2006/June 2008 - incidental to other fieldwork. Conetoe Buffer Restoration Site Annual Monitoring Report Restoration Systems, LLC Year 3 (2008)