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HomeMy WebLinkAbout20130455 Ver 1_Year 2 Monitoring Report_2015_20160328Monitoring Report Twin Bays Wetland Restoration Site DMS Contract 004739 DMS Project Number 95363 "% T , • t 7 a/% Prepared for: NCDMS, 1652 Mail Service Center, Raleigh, NC 27699-1652 Construction Completed: March 2014 Data Collection: 2015 Submitted: January 2016 Design and Monitoring Firm KCI ASSOCIATES OF NC Landmark Center II, Suite 220 4601 Six Forks Road Raleigh, NC 27609 Phone: (919) 278-2514 Fax: (919) 783-9266 Project Contact: Tim Morris Email: tim.morris(a)kci.com KCI Project No: 20122265 TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY/PROJECT ABSTRACT................................................................1 2.0 MONITORING RESULTS..........................................................................................................2 2.1 Vegetation Monitoring..............................................................................................................2 2.2 Hydrology Monitoring..............................................................................................................2 3.0 METHODOLOGY.......................................................................................................................3 4.0 REFERENCES.............................................................................................................................4 Appendix A — Project Vicinity Map and Background Tables Figure 1. Project Site Vicinity Map............................................................................................................. 5 Figure 2. Project Site Mitigation Plan View................................................................................................6 Table1 — Project Components..................................................................................................................... 7 Table 2 — Project Activity and Reporting History....................................................................................... 7 Table3 — Project Contacts........................................................................................................................... 8 Table4 — Project Attributes......................................................................................................................... 9 Appendix B — Visual Assessment Data Figure 3. Current Condition Plan View..................................................................................................... 10 Table 5 — Vegetation Condition Assessment............................................................................................. 11 PhotoPoint Photos..................................................................................................................................... 12 VegetationPlot Photos............................................................................................................................... 16 Appendix C — Vegetation Plot Data Table 6 — Vegetation Plot Criteria Attainment.......................................................................................... 19 Table 7 — CVS Vegetation Plot Metadata.................................................................................................. 20 Table 8 — CVS Stem Count Total and Planted by Plot and Species.......................................................... 21 Appendix D — Hydrologic Data PercentSaturation Figure........................................................................................................................... 24 30-70 Percentile Graph.............................................................................................................................. 25 Precipitation and Water Level Plots........................................................................................................... 26 Table 9 — Wetland Hydrology Criteria Attainment.................................................................................... 43 Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 2015— MY02 1.0 EXECUTIVE SUMMARY / PROJECT ABSTRACT The Twin Bays Wetland Restoration Site, (TBWRS) completed in March 2014, restored 10.6 acres of non -riparian wetland along with 0.4 acre of upland preservation. The TBWRS is a non -riparian wetland system in the Cape Fear Basin (03030007 8 -digit HUC) in southern Duplin County, North Carolina. The project is located in the 14 -digit HUC 03030007090040 (Rock Fish Creek), which DMS has identified as a Targeted Local Watershed (TLW) (NCDENR, EEP 2009). The project site is protected by an 11.72 -acre permanent conservation easement held by the State of North Carolina. TBWRS is located on a single parcel located off of Cornwallis Road approximately two miles northwest of Wallace, North Carolina. The project site is bounded by Cornwallis Road to the west, a ditch along the property line to the south, and agricultural land to the east and north. Prior to construction, the site was actively used for row crop farming. The site had a long history of hydrologic modification in order to allow for farming to take place on the property. The Cape Fear River Basin Restoration Priorities state the goals for the TBWRS's 14 -digit HUC are to expand restoration opportunities and repair riparian buffers (NCDENR EEP, 2009). The project goals for TBWRS are in line with the basin priorities and include the following: - Slow and treat the runoff of upslope agricultural drainage. - Restore a Hardwood Flats Community. - Develop valuable wetland habitat niches within a drained agricultural landscape. The project goals will be addressed through the following objectives: - Fill field ditches to restore surface flow retention and elevate local groundwater levels. - Redevelop longer wetland flow patterns to increase surface flow retention time. - Modify an existing pond to its natural seep condition to feed the downslope wetland. - Restore a native forested hardwood wetland community using natives trees and seed mixes. There are three non-credit generating areas on the site. There is 0.4 -acre of uplands located in the forested northeastern corner of the project boundary. This area remained undisturbed and is included in the TBWRS conservation easement. There is a 0.2 acre utility easement on the west side of the site along Cornwallis Road that remained undisturbed. Additionally, the southernmost ditch, located adjacent to project easement, was left open and not filled. It is anticipated that leaving this ditch open will have minimal impacts to the overall hydrologic performance of the site. The hydrologic influence of this ditch was modeled using Lateral Effect, a software program that determines the lateral effect of a drainage ditch or borrow pit on adjacent wetland hydrology (NCSU BAE, 2011). This analysis determined that the potential horizontal drainage influence averages 76'. Due to the fact that the southern ditch cannot be filled because of the potential for hydrologic trespass, the area immediately adjacent to the ditch will not be a credit generating part of the site. It is assumed that with the onsite modifications, such as filling ditches and surface roughening, the entire site will have more surface and groundwater, which may decrease the effect of the ditch. For this reason, the non-credit generating portion of the site is assumed to be half of the zone of influence for the ditch. The TBWRS provided mitigation for wetland impacts within Hydrologic Unit 03030007 by restoring 10.6 acres of wetland and preserving 0.4 -acre of uplands, generating 10.6 riparian wetland mitigation units (WMU's). The TBWRS will be monitored to determine if the project is on -track to meeting jurisdictional wetland status. The wetland site will be deemed successful once hydrology is established and vegetation success criteria are met. Summary information/data related to the occurrence of items such as beaver or encroachment and statistics related to performance of various project and monitoring elements can be found in the tables and Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 1 2015— MY02 figures in the report appendices. Narrative background and supporting information formerly found in these reports can be found in the Baseline Monitoring Report and in the Mitigation Plan documents available on the DMSs website. All raw data supporting the tables and figures in the appendices are available from DMS upon request. 2.0 MONITORING RESULTS The TBWRS will be monitored to determine if the project is on -track to meeting jurisdictional wetland status. The wetland restoration area will be deemed successful once hydrology is established and vegetation success criteria are met. The site will be monitored for at least seven years or until the success criteria are achieved. 2.1 VEGETATION MONITORING The success criteria for the planted species in the mitigation area will be based on survival. The site will demonstrate the re-establishment of targeted vegetative communities based on survival and growth of planted species and volunteer colonization, with an average stem density of 320 stems/acre after three years, 288 stems/acre after four years, 260 stems/acre after five years, and 210 stems/acre after seven years to be considered successful. To determine the success of the planted mitigation area, ten permanent vegetation monitoring plots (10 by 10 meters) have been established in the wetland restoration area at a density that represents the total mitigation acreage. The average density of these plots will determine whether the site meets the success criterion. The second -year vegetation monitoring was based on the Level 2 CVS-EEP vegetation monitoring protocol. The site's average density for this monitoring period was 983 planted stems/acre. This represents an increase from the first year of monitoring, which is due to a supplemental planting that KCI conducted in March 2015. All ten plots had greater than 320 planted stems/acre. Including volunteers, the site averaged 1,117 total stems/acre. In general the site is well vegetated, with widespread herbaceous coverage and healthy planted stems. 2.2 HYDROLOGY MONITORING Wetland hydrology will be monitored with a series of automatic gauges that record water table depth. The site must present continuous saturated or inundated hydrologic conditions for at least 8% of the growing season with a 50% probability of reoccurrence during normal weather conditions. A "normal" year is based on NRCS climatological data for Duplin County using the 30th to 70th percentile thresholds as the range of normal as documented in the USACE Technical Report "Accessing and Using Meteorological Data to Evaluate Wetland Hydrology, April 2000." The soil survey for Duplin County does not contain growing season data; therefore, due to its close proximity, the Sampson County soil survey was used. The estimated growing season begins March 18 and ends November 11 (239 days). The water table of the restored wetlands must be within 12" of the soils surface continuously for at least 8% (19 days) of the 239 -day growing season. Wetland hydrology will be monitored with sixteen automatic gauges that record water table depth. Daily data will be collected from the automatic gauges over the 7 -year monitoring period. Due to the inherent variability in the site's soils and associated drainage characteristics, it is unlikely that the project will exhibit uniform hydrologic conditions across the site, making a single hydrologic performance criterion unrepresentative of the site's performance. As such, the gauge data can be evaluated and presented as a spatial average with each gauge representing the area half the distance to adjacent gauges. The spatial average will be the calculated value for comparison with the performance standard for credit validation. Gauges representing areas not achieving a minimum of 6.5% saturation will Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 2 2015— MY02 be considered non -attaining even if the spatial average exceeds the credit validation performance standard. To monitor the effect of the unfilled ditch described in Section 1.0, four sets of coupled gauges were installed perpendicular to the unfilled ditch. Each set includes a gauge that is 40' from the open ditch and another that is 75' from the ditch. An additional two gauges were installed between the coupled gauges to monitor hydrology less than 40' from the open ditch in the non-credit bearing zone. The daily rainfall data were obtained from the NC State Climate Office for a local weather station in Jacksonville, NC. In 2015, the months of February, May, October and November experienced above average rainfall, while January, April, June, August, and September experienced average rainfall. The months of March, and July recorded below average rainfall for the site. Overall, the area experienced average rainfall during the 2015 growing season. During the site's second growing season, all four of the gauges located 75' from the ditch had continuous saturation within 12 inches of the ground surface for 8% (19 days) of the 239 day growing season (March 18 to November 11). All four of the gauges located 40' from the ditch also met this metric while only one of the two gauges located less than 40' from the ditch achieved 8% continuous saturation. A new gauge (Gauge 17) was installed in the restoration area before the start of the 2015 growing season. No gauges in the restoration area were below 8% saturation. Since no gauges were below 6.5% continuous saturation, all gauges were used in the analysis to determine the spatial average for the hydrology of the entire site. This analysis is based off percent saturation contours for the restoration area calculated from the gauge data. Following the method described above and as illustrated in the figure in Appendix D, it is determined that based on the spatial average, the site was continuously saturated for 30.6% of the growing season and met the hydrology success criteria of 8% for the second year of monitoring. 3.0 METHODOLOGY The CVS-EEP protocol, Level 2 (http://cvs.bio.unc.edu/methods.htm) was used to collect vegetation data from the site. The vegetation monitoring was completed on June 30, 2015. Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 3 2015— MY02 4.0 REFERENCES Lee, M.T., R.K. Peet, S.D. Roberts, and T.R. Wentworth. 2008. CVS-EEP Protocol for Recording Vegetation, Version 4.2 (http://cvs.bio.unc.edu/methods.htm) NCDENR, Ecosystem Enhancement Program. 2009. Lower Yadkin Pee -Dee River Basin Priorities 2009. Raleigh, NC. hiip://www.nceep.net/services/restplans/Yadkin_ Pee_Dee _RBRP_2009_Final.pdf NCSU BAE. North Carolina State University, Biological and Agricultural Engineering. 2011. Method to Determine Lateral Effect of a Drainage Ditch on Adjacent Wetland Hydrology. Last accessed 11/2012 at: hqp://www.bae.ncsu.edu/soil wateL/projects/lateral_effect.html USACE. 2003. Stream Mitigation Guidelines. USACE, NCDENR-DWQ, USEPA, NCWRC. Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 4 2015— MY02 Appendix A Project Vicinity Map and Background Tables Twin Bays Wetland Restoration Site KCl Associates of'NC, PA DMS Project # 95363 5 2015— MY02 WAYNE LENOIR JONES SAMPSON OUPLIN /Jl ONSLOW a r ROSE LL GREENEV RS PENOER Charity Rd m � a 4 MURPHY FARMS t1 i cr V h arrs�� { TEACHEY 41 SAFE FIELD - tY g m Y WA E iver Rd - HENDERSON FIELD F � �ve1Rd Tareach the site from Raleigh: proceed east on I-40 for approximately 69 miles. Then travel on US 17 south toward U Wallace. Turn rightonto NC -41 South/East Main Street. Travel for two miles (East Main Street turns into West Main Street and then Wallace Highway). Next, take a slight right onto Cornwallis 11 Road. The site will be approximately 0-5 mile ahead on the right. 4� 4— ' f The subject project site is an environmental restoration site of the � NCOENR Ecosystem Enhancement Program (EEP) and is ar encompassed by a recorded conservation easement,. but is G bordered by land under private ownership- Accessing the site may `r require traversing areas near or along the easement boundary and therefore access by the general public is not permitted. Access by by authorized personnel of state and federal agencies or their designeesfcontractors Involved In the development, oversight and 40�stem stewardship of the restoration site is permitted within the terms andtimeframes of their defined rules Any intended site visitation oractivity by any person outside of these previously sanctioned roles '�xpient and activities requires prior coordination with EEP. , rrur enM FIGURE 1. PROJECT SITE VICINITY MAP I9 1 0.5 0 1 TWIN SAYS WETLAND RESTORATION SITE Miles EEP PROJECT #95363, DUPLIN COUNTY, NC Twin Bays Wetland Restoration Site KCl Associates of'NC, PA DMS Project # 95363 6 2015— MY02 Table 1. Project Components and Mitigation Credits Twin Bays Wetland Restoration Site, DMS Project # 95363 Miti ation Credits Nitrogen Phosphoro Stream Riparian Non -riparian Buffer Nutrient us Wetland Wetland Offset Nutrient Offset Type R RE R RE R RE Acres 10.6 Credits 10.6 TOTAL 10.6 CREDITS Project Components Restoratio Project Existing n -or- Restoratio Component Stationing/ Footage/ Approach Restoratio n Footage Mitigation -or- Location Acreage (PI, PH etc.) n or Ratio Reach ID Equivalen Acreage t Central and Wetland Area Southern portion 10.6 acres - Restoration 10.6 acres 1:1 of project easement Component Summation Restoration Stream Riparian Wetland Non -riparian Buffer Upland Level (linear feet) (acres) Wetland (acres) (square (acres) feet) Riverme Non- Riverine Restoration 10.6 acres Enhancement Enhancement I Enhancement II Creation Preservation 0.4 acre High Quality Preservation TOTAL - - - 10.6 acres - 0.4 acre TOTAL _ _ _ 10.6 - - WMU Twin Bays Wetland Restoration Site KCl Associates of NC, PA DMS Project # 95363 7 2015— MY02 Table 2. Project Activity & Reporting History Twin Bays Wetland Restoration Site, DMS Project # 95363 Twin Bays Wetland Restoration Site, DMS Project # 95363 Design Firm Activity or Report Data Collection Complete Actual Completion or Deliver Mitigation Plan 4601 Six Forks Rd. Oct 13 Final Design - Construction Plans Dec 13 Construction Phone: (919) 278-2512 Feb/March 14 Planting Construction Contractor March 14 Baseline Monitoring/Report April 14 May 14 Year 1 Monitoring Nov 14 Dec 14 Supplemental Planting Raleigh, NC 27609 March 15 Year 2 Monitoring July 15 Jan 16 Table 3. Project Contacts Twin Bays Wetland Restoration Site, DMS Project # 95363 Design Firm KCI Associates of North Carolina, PC Landmark Center 11, Suite 220 4601 Six Forks Rd. Raleigh, NC 27609 Contact: Mr. Tim Morris Phone: (919) 278-2512 Fax: (919) 783-9266 Construction Contractor KCI Environmental Technologies and Construction, Inc. Landmark Center 11, Suite 220 4601 Six Forks Rd. Raleigh, NC 27609 Contact: Mr. Tim Morris Phone: (919) 278-2512 Fax: (919) 783- 9266 Planting Contractor Forestree Management Co. 1280 Maudis Road Bailey, NC 27807 Contact: Mr. Tony Cortez Phone: (252) 243-2513 Monitoring Performers MY -00-02 KCI Associates of North Carolina, PC Landmark Center 11, Suite 220 4601 Six Forks Rd. Raleigh, NC 27609 Contact: Mr. Adam Spiller Phone: (919) 278-2514 Fax: (919) 783-9266 Twin Bays Wetland Restoration Site KCl Associates of NC, PA DMS Project # 95363 8 2015— MY02 Table 4. Project Information Twin Bas Wetland Restoration Site, DMS Project # 95363 Project Name Twin Bays Wetland Restoration Site County Duplin County Project Area (acres) 11.72 acres Project Coordinates (lat. and long.) 34.748418 N, -78.027129 W Project Watershed Summary Information Physiographic Province Coastal Plain River Basin Cape Fear USGS Hydrologic Unit 8-digit 03030007 USGS Hydrologic Unit 14-digit 0303000709004 0 DWQ Sub-basin 18-74-29b Project Drainage Area (acres) 25.4 acres Project Drainage Area Percentage of Impervious Area 2% CGIA Land Use Classification 1 93% Cultivated, 2% Mixed Shrubland, and 5% Low-Intensity Development Wetland Summary Information (Post-Restoration Parameters Wetland Area Size of Wetland (acres) 10.6 acres Wetland Type (non-riparian, riparian riverine or riparian non- riverine) Non-riparian Mapped Soil Series Rains (Torhunta, Murville/Leon and Udorthents by detailed soil investigation) Drainage class Poorly drained Soil Hydric Status Drained Hydric Source of Hydrology Hillside seepage / precipitation Hydrologic Impairment Ditching and Crops Native vegetation community Hardwood Flats Community Percent composition of exotic invasive vegetation 0% Regulatory Considerations Regulation Applicable? Resolved? Supporting Documentation Waters of the United States — Section 404 Yes Yes, received 404 permit N/A Waters of the United States — Section 401 Yes Yes, received 401 permit N/A Endangered Species Act* No N/A N/A Historic Preservation Act* No N/A N/A Coastal Zone Management Act (CZMA)/ Coastal Area Management Act CAMA No N/A N/A FEMA Floodplain Compliance No N/A FEMA Floodplain Checklist Essential Fisheries Habitat* No N/A N/A Twin Bays Wetland Restoration Site KCl Associates of NC, PA DMS Project # 95363 9 2015— MY02 Appendix B Visual Assessment Data Twin Bays Wetland Restoration Site KCl Associates of'NC, PA DMS Project # 95363 10 2015— MY02 r'�rt 1 + i `. 1133/1093 } 648/648 �i4 eft 12951 9 1 ff/ f l Aw F1 700/1578 890 / 728'.. L 1416/1131'. LEGEND- CONSERVATION EASEMENT .............................. VEG PLOT ACHIEVING DENSITY CRITERION VEG PLOT BELOW DENSITY CRITERION 0 VEG PLOT TOTAL / PLANTED STEM DENSITY • • • • • • • . • . . 11171983 o w a WETLAND GAUGE ACHIEVING HYDROLOGIC CRITERION WETLAND GAUGE BELOW HYDROLOGIC CRITERION PHOTO POINT ................................................. LA //IOAGE"SOURCE NC2910ORT1-1011L4GERY CURRENT CONDITION PLAN VIEW ET 1 OF Table 5. Vegetation Condition Assessment Twin Bays Restoration Site, DMS Project #95363 Planted Acreage 10.6 Easement Acreage 11.7 CCPV Number of Combined Vegetation Categgu Definitions MappingThresholdDe fiction Pol ons Acrea e % of Planted Acreage Very limited cover of both woody and Pattern and 1. Bare Areas 0.1 acre 0 0.00 0.0% herbaceous material. Color Woody stem densities clearly below 2. Low Stem Density Pattern and target levels based on MP3, 4, or 5 0.1 acre 0 0.00 0.0% Areas Color stem count criteria. Total 0 0.00 0.0% 3. Areas of Poor GrowthAreas with woody stems of a size class Pattern and that are obviously small given the Imonitorin 0.25 acre 0 0.00 0.0% Rates or Vigor Color a year. Cumulative Totall 0 1 0.00 1 0.0% 4. Invasive Areas of Areas or points (if too small to render Pattern and las 1,000 SF 0 0.00 0.0% Concern polygons at ma scale). Color 5. Easement Areas or points (if too small to render Pattern and Encroachment Areas las polygons at ma scale). none Color 0 0.00 0.0% Twin Bays Wetland Restoration Site KCl Associates of NC, PA DMS Project # 95363 12 2015— MY02 Photo Reference Points PPIaMY-004/10/14 PPIaMY027/30/15 PPlb— MY -00 — 4/10/14 PP2a — MY -00 — 4/10/14 Twin Bays Wetland Restoration Site DMS Project # 95363 13 PPIb — MY02 — 7/30/15 PP2a — MY02 — 7/30/15 m KCI Associates of NC, PA 2015— MY02 PP2b MY -00 4/10/14 PP3 — MY -00 — 4/10/14 PP2b — MY02 — 7/30/15 PP3 — MY02 — 7/30/15 PP4a — MY -00 — 4/10/14 Twin Bays Wetland Restoration Site DMS Project # 95363 14 PP4a MY02 — 7/30/15 KCI Associates of NC, PA 2015— MY02 PP4b — MY -00 4/10/14 PP4b MY02 7/30/15 Ma — MY -00 — 4/10/14 PP5b — MY -00 — 4/10/14 Twin Bays Wetland Restoration Site DMS Project # 95363 15 Ma — W02 — 7/30/15 PP5b — MY02 — 7/30/15 KCI Associates of NC, PA 2015— MY02 PP6a MY -00 4/10/114 PP6a MY02 7/30/15 PP6b— MY -00 — 4/10/14 Twin Bays Wetland Restoration Site DMS Project # 95363 16 PP6b — MY02 — 7/30/15 KCI Associates of NC, PA 2015— MY02 Vegetation Plot Photos ;q 4 Veg Plot #1— MY02 — 7/30/15 Vcg Plot #3 MY02 — 7/30/15 S Veg Plot #5 — MY02 — 7/30/15 Twin Bays Wetland Restoration Site DMS Project # 95363 -•r Veg Plot #2 — MY02 — 7/30/15 Veg Plot #6 MY02 7/30/15 KCI Associates of NC, PA 17 2015— MY02 Veg Plot #7 MY02 7/30/15 Veg Plot #9 — MY02 — 7/30/15 Veg Plot #8 — MY02 — 7/30/15 r Veg Plot #10 — MY02 — 7/30/15 Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 18 2015— MY02 " i ? Veg Plot #7 MY02 7/30/15 Veg Plot #9 — MY02 — 7/30/15 Veg Plot #8 — MY02 — 7/30/15 r Veg Plot #10 — MY02 — 7/30/15 Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 18 2015— MY02 Appendix C Vegetation Plot Data Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 19 2015— MY02 Table 6. Vegetation Plot Criteria Attainment Twin Bays Restoration Site DMS Project #95363 Vegetation Plot ID Vegetation Survival Threshold Met? Monitoring Year 02 Planted Stem Density (stems/acre) Monitoring Year 02 Total Stem Density (stems/acre) 1 Yes 1,093 1,174 2 Yes 971 1,295 3 Yes 647 647 4 Yes 1,093 1,133 5 Yes 931 1,012 6 Yes 1,578 1,700 7 Yes 769 809 8 Yes 728 890 9 Yes 1,133 1,416 10 Yes 890 1,093 Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 20 2015— MY02 Table 7. CVS Vegetation Plot Metadata Twin Bays Restoration Site DMS Project #95363 Report Prepared By Bethany Williams Date Prepared 7/31/2015 11:32 database name KCI -2014-95363 Twin Ba s.mdb database location M:\2012\20122265 TwinBa s\Monitorin \Ve etation CVS Database computer name 12-3ZV4FP1 file size 162296064 DESCRIPTION OF WORKSHEETS IN THIS DOCUMENT------------ Metadata Description of database file, the report worksheets, and a summary of project(s) and project data. Proj, planted Each project is listed with its PLANTED stems per acre, for each year. This excludes live stakes. Proj, total stems Each project is listed with its TOTAL stems per acre, for each year. This includes live stakes all planted stems and all natural/volunteer stems. Plots List of plots surveyed with location and summary data (live stems, dead stems, missing, etc.). Vigor Frequency distribution of vigor classes for stems for all plots. Vigor bSpp Frequency distribution of vigor classes listed by species. Damage List of most frequent damage classes with number of occurrences and percent of total stems impacted by each. Damage by Spp Damage values tallied by type for each species. Damage by Plot Damage values tallied by type for each plot. Planted Stems by Plot and Spp A matrix of the count of PLANTED living stems of each species for each plot; dead and missing stems are excluded. ALL Stems by Plot and spp A matrix of the count of total living stems of each species (planted and natural volunteers combined) for each lot dead and missing stems are excluded. PROJECT SUMMARY ------------------------------------- Project Code 95363 project Name Twin Bas Restoration Site Description Wetland restoration site River Basin Cape Fear area (s m) 24523.92 Required Plots calculated 10 Sampled Plots 10 Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 21 2015— MY02 Table 8. CVS Stem Count Total and Planted by Plot and Species DMS Project Code 95363. Project Name: Twin Bays Restoration Site Twin Bays Wetland Restoration Site KCI Associates of'NC, PA DMS Project 4 95363 22 2015— MY02 Current Plot Data (MY2 2015) Scientific Name Common Name Species Type 95363-01-0001 95363-01-0002 95363-01-0003 95363-01-0004 95363-01-0005 95363-01-0006 1 95363-01-0007 95363-01-0008 95363-01-0009 95363-01-0010 Pnol-STP-all T Pnol-S P -all T Pnol-S P -all T PnoLS P -all T Pnol-S P -all T Pnol-S P -all T Pnol-S P -all T PnoLS P -all T Pnol-S P -all T Pnol-S P -all T Acer rubrum Red maple Tree 1 2 1 1 1 1 1 1 2 2 2 Aronia arbutifolia Red Chokeberry Shrub 5 5 5 1 2 2 2 Baccharis halimifolia Eastern Baccharis Shrub 1 5 1 1 1 1 2 Betula nigra River Birch Tree 5 5 S 1 1 1 3 3 3 6 6 6 16 16 16 1 1 1 5 5 5 11 11 11 Fraxinus pennsylvanica Green Ash Tree 11 11 11 1 1 1 3 3 3 8 8 8 2 2 2 1 1 1 Liquidambarsty racifIua Sweetgum Tree 1 Liriodendron tulipifera Tuliptree Tree 2 2 2 1 1 1 Magnolia virginiana Sweetbay Tree 1 1 1 6 6 6 3 3 3 5 5 5 Nyssa biflora Swamp Tupelo Tree 3 2 Platanus occidentalis American Sycamore Tree 3 3 3 4 Quercus michauxii Swamp Chestnut Oak Tree 7 7 7 4 4 4 6 6 6 8 8 8 3 3 3 7 7 7 12 12 12 10 10 10 2 2 2 Quercus pagoda Cherrybark Oak Tree 11 11 11 1 1 1 2 2 2 3 3 3 4 4 5 Quercus phellos Willow Oak Tree 4 4 4 2 2 2 1 1 1 9 9 9 4 4 4 Salix nigra Black Willow Tree 2 Sambucus canadensis Common Elderberry Shrub 3 Taxodium distichum Bald Cypress Tree 6 6 6 1 1 1 8 8 8 1 1 1 Ulmus americana American Elm Tree Unknown Shrub or Tree Vaccinium corymbosum Highbush Blueberry Shrub 5 5 5 4 4 4 4 4 4 41 4 4 2 2 2 1 1 1 1 11 1 11 11 1 Stem count size (ares) size (ACRES) Species count Stems per ACRE 27 27 29 24 24 32 16 16 16 27 27 28 231 231 25 39 39 42 19 19 20 18 18 22 28 281 35 221 221 27 1 1 1 1 1 1 1 1 1 1 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 5 -51 7 41 41 7 71 71 7 51 5 6 71 71 9 61 61 83 3 4 7 7 8 6 6 9 6 6 8 1093 1093 1174 971 971 1295 647 647 647 1093 1093 1133 931 931 1012 1578 1578 1700 769 7691 809 7281 7281 8901 11331 11331 1416 8901 8901 1093 Twin Bays Wetland Restoration Site KCI Associates of'NC, PA DMS Project 4 95363 22 2015— MY02 Table 8. CVS Stem Count Total and Planted by Plot and Species DMS Proiect Code 95363. Proiect Name: Twin Bays Restoration Site Twin Bays Wetland Restoration Site KCIAssociates of NC, PA DMS Project # 95363 23 2015— MY02 Annual Means Scientific Name Common Name MY2 (2015) Species Type PnoLS[P-all T MY1 (2014) PnoLS P -all T MYO (2014) PnoLS P -all T Acer rubrum Red Maple Tree 31 3 9 3 3 7 5 5 5 Aronia arbutifolia Red Chokeberry Shrub 7 7 7 8 8 8 11 11 11 Baccharis halimifolia Eastern Baccharis Shrub 11 7 Betula nigra River Birch Tree 48 48 48 48 48 48 47 47 47 Fraxinus pennsylvanica Green Ash Tree 26 26 26 24 24 24 5 5 5 Liquidambarstyraciflua Sweetgum Tree 1 1 Liriodendron tulipifera Tuliptree Tree 3 3 3 1 1 1 18 18 18 Magnolia virginiana Sweetbay Tree 15 15 15 13 13 13 17 17 17 Nyssa biflora Swamp Tupelo Tree 5 Platanus occidentalis American Sycamore Tree 3 3 7 3 3 3 Quercus michauxii Swamp Chestnut Oak Tree 59 59 59 54 54 54 Quercus pagoda Cherrybark Oak Tree 21 21 22 23 23 23 22 22 22 Quercus phellos Willow Oak Tree 20 20 20 9 9 9 Salix nigra Black Willow Tree 2 3 Sambucus canadensis Common Elderberry Shrub 3 Taxodium distichum Bald Cypress Tree 16 16 16 6 6 6 1 1 1 Ulmus americana American Elm Tree 8 8 8 Unknown Shrub or Tree 10 10 10 104 104 104 Vaccinium corymbosum Highbush Blueberry Shrub 22 22 22 20 20 20 22 22 22 Stem count size (ares) size (ACRES) Species count Stems per ACRE 243 121 9831 24-31 10 0.25 121 983 276 17 1117 2221 13 8981 2221 10 0.25 13 8981 237 16 9.591 260 111 10521 260 10 0.25 11 1052 260 11 1052 Twin Bays Wetland Restoration Site KCIAssociates of NC, PA DMS Project # 95363 23 2015— MY02 Appendix D Hydrologic Data Twin Bays Wetland Restoration Site KCI Associates of NC, PA DMS Project # 95363 24 2015— MY02 j �s. GA17 43.5% { GA13 30.8% GA12 43.1%• 1631.8% GA11 41.8% Af GA1 _ GA5 41 4 GA8 31.2% A 1 GA3 7.3%-G 438.5% 1 F {GA70 9.2 GA731.4% �e)eltiljy5Ll 0 Or GA6 17.2% GA9 38.3 y INC OneMap, INC Center for Geographic Information and Analysis, INC 911 Board ® Gauges �� Non -Riparian Wetland Restoration (10.6 ac) OEasement Area (11.7 ac) Upland Preservation (0.4 ac) Division of Non -Credit Bearing Zone (0.88 ac) Average Percent Saturation for Percent Saturation Wetland Restoration Area = 30.59% Mitigation ^� ^� IP'�k Services TWIN BAYS PERCENT SATURATION N 0 50 100 200 TWIN BAYS RESTORATION SITE Source: Eastern Piedmont Feet DMS PROJECT #95363, DUPLIN COUNTY, NC Orthoimagery, 2013. 9.0 8.0 7.0 6.0 5.0 w 4.0 3.0 2.0 1.0 0.0 Twin Bays Wetland Restoration Site 30-70 Percentile Graph WETS Station Name: KOAJ - Albert Ellis Airport ti w � Date Z 2015 Rainfall f 30% Less Than —M— 30% Greater Than 502 501 500 w 0 ca W 499 v 3 c 498 A" 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 1 N C1 t.) 'A U Y Z .r t t t Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 7 m 2 1.5 1 0.5 0 502 501 i, 500 w Twin Bays Restoration Site Hydrograph Wetland Gauge 2 N% 497 496 v o C tj v " N v N w i, w v, � � w `� o �o 0o a� v, N O O o Z Z Z d C1 C7 _ � � � �_ a- Q. '` �, � F , � � � � � � •r � � � � :, � °� ac ac _ acs � a ^. � � � < < < �, Date Sensor Depth Groundwater Depth Ground Surface 12 Inches Below Ground Surface Rainfall 4 3.5 3 2.5 7 m 2 a d 1 0.5 0 502 501 Twin Bays Restoration Site Hydrograph Wetland Gauge 3 - non-credit bearing W 499 PCa a 0 U 498 497 496 vC', N v N.- " v N w N W o N v, N N N w N W �C N In -F,Go O `O 0O ? W O W 41 c.n N �—. O J ? W ~ O Oo D\ l.n N OW L J w w w c coo Y Y w c a Y Y O O o Z Z Z d t7 t7 Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 500 w c 499 W 6 e 498 3 Twin Bays Restoration Site Hydrograph Wetland Gauge 4 C7 497 496 N a N v N N � N w N w o N v N N � N w N w o N O IO Ir Yn A A w .- O 'P oo T c.n N .- O Co v A w .- O 'O oo O\ to N — O co J w w �� 4 Y Y Y w sr C Y Y coo O O o Z Z Z d t7 C7 Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 500 Twin Bays Restoration Site Hydrograph Wetland Gauge 5 LN CLIA 496 � O �O 00 t/i ? ? W ~ O �O 00 O\ lh � N � O Oo v � ? W ~ O �O 0o O� lh N i—• O � Oo v m ti ITJ ny Y Y Y w c c c c Y Y coo rn rn O O o Z Z Z d d d r s �, v, iA " `" v v ^ in v in Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 77 s� 2 1.5 1 0.5 0 502 501 500 w 0 a� W 499 a 0 498 LN CLIA 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 6 - non-credit bearing � O �O 00 t/i ? ? W ~ O �O 00 O\ lh � N � O Oo v � ? W ~ O �O 0o O� lh N i—• O � Oo v m ti ITJ ny Y Y Y w c c c c Y Y coo rn rn O O o Z Z Z d d d Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 s� 2 1.5 1 0.5 0 IN 502 501 500 499 498 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 7 `--• N a, � N W N � N J N w N w �O � N W N '-- O �O 00 Vi A A W O 'O 00 01 Vi N �-` O 00 J A W O 'O Y`" Y Y rn rn O O o Z Z Z d d C7 �_ 6 a �a w w 9 w o ❑ b c o 0 0 ? n Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 m 1.5 1 0.5 0 502 501 500 w C 0 499 W 498 0 C7 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 8 N N 1 i N N J N W N W �O N In N N J N W N W Vp N O IO 00 In � � W .-+ O 'P Oo T (,n N O W g ? W .- O � W T V� N rte. O Go J m w w c�Irl Y Y c c c a Y Cn rn O O o Z Z Z d t7 Cd Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 500 w 0 499 W a� 498 0 is 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 9 .-. N� O '0 00 y, A A w O lO 00 In N O DD J A '7- O 'O 00 Vi N O DD J w m w w Y a Y Y O O o Z Z Z C7 Cd Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 61111 w 0 '? 499 W c 498 C7 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 10 O �O oo Y, A A w O 'O oo T . m w nIrlITJ a Y Y Y c c Y Y o C U O O o Z Z Z d C7 t7 CD i? in �, (.A Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 500 Twin Bays Restoration Site Hydrograph Wetland Gauge 11 V 497 496 N 01 N Vi N N J N W N W �O N to N N J N W N W �D N o oo iy v w D o 00 v N o ti oo w o oo O v Z N . o C7 00 w w a` a c7o coo o Y ��Y c coo rn O O o Z Z Z co d d E E. °Q oma ao cs cs is c< 0 0 o Q Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 o' 2 1.5 1 0.5 0 LAP] 502 501 500 499 498 497 EL14 Twin Bays Restoration Site Hydrograph Wetland Gauge 12 1p Ir O� cn N -• O oo v .A w O 'O oo T rn CA O O o Z Z Z d C7 d Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface — Sensor Depth Rainfall 4 3.5 3 2.5 2 m 1 0.5 0 502 501 500 w C 0 499 W 498 0 C7 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 13 N N 1 i N N J N W N W �O N In N N J N W N W Vp N O IO 00 In � � W .-+ O 'P Oo T (,n N O W g ? W .- O � W T V� N rte. O Go J m w w c�Irl Y Y c c c a Y Cn rn O O o Z Z Z d t7 Cd Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 500 w C 0 499 W a� 498 0 is 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 14 .-. N � .-. N � �. N .-. .- N J .-. N W .-� N w �p .-� N Vi N .-.-. O '0 00 c, A A w O �O 00 In N O DD J A w O �O Vi N O DD J w m w w Y a Y Y O O o Z Z Z C7 Cd Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 61111 w a 0 °? 499 W c 498 C7 497 496 Twin Bays Restoration Site Hydrograph Wetland Gauge 15 O �O oo Y, A A w O 'O oo T . m w nIrlITJ a Y Y Y c c Y Y o C U O O o Z Z Z d C7 t7 CD i? in �, (.A Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 2 1.5 1 0.5 0 502 501 500 Twin Bays Restoration Site Hydrograph Wetland Gauge 16 V 497 496 N ON Vi N N J N W N W �O N to N N J N W N W �D N o oo iy v w D o 00 v N o ti oo w o oo O v Z N . o C7 00 w w a` a c7o coo o Y ��Y c coo rn O O o Z Z Z co d d E E. °Q oma ao cs cs is c< 0 0 o Q Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 o' 2 1.5 1 0.5 0 502 501 500 Twin Bays Restoration Site Hydrograph Wetland Gauge 17 V 497 496 N 01 N Vi N N J N W N W �O N Ch N N J N W N W \G N o oo iy v w D o 00 v N o ti oo w o oo O v Z N . o C7 00 w w a` a c7o coo o Y ��Y c coo rn O O o Z Z Z co d d E E. °Q oma ao cs cs is c< 0 0 o Q Date Groundwater Depth Ground Surface 12 Inches Below Ground Surface Sensor Depth Rainfall 4 3.5 3 2.5 o' 2 1.5 1 0.5 0 Table 9. Wetland Hydrology Attainment Table Twin Bays Restoration Site, DMS Project #95363 Greater than 8% Continuous Saturation/Max Consecutive Days During Growing Season (Percentage) Gauge # MY -01 MY -02 MY -03 MY -04 MY -05 MY -06 MY -07 2014 2015 2016 2017 2018 2019 2020 Yes/25 Yes/105 Gauge 1 (10.5%) (43.9%) No/16 Yes/75 Gauge 2 (6.5%) (31.4%) No/13 No/18 Gauge 3* (5.2%) (7.3%) Yes/26 Yes/92 Gauge 4 (10.9%) (38.5%) Yes/27 Yes/98 Gauge 5 (11.1%) (41.0%) No/13 Yes/41 Gauge 6* (5.4%) (17.2%) Yes/27 Yes/75 Gauge 7 (11.1%) (31.4%) Yes/24 Yes/75 Gauge 8 10.0% (31.4%) No/17 Yes/92 Gauge 9 (6.9%) (38.3%) Yes/24 Yes/22 Gauge 10 (9.8%) (9.2%) Yes/28 Yes/100 Gauge 11 (11.7%) (41.8%) No/o14 Yes/103 Gauge 12 (5.9%) (43.1%) No/15 Yes/74 Gauge 13 (6.1%) (30.8%) Yes/22 Yes/19 Gauge 14 (9.0%) (8.0%) Yes/27 Yes/76 Gauge 15 (11.1°%) (31.8%) Yes/49 Yes/76 Gauge 16 20.3% (31.8%) Gauge 17`* _ Yes/104 (43.5%) * = Gauge in the non-credit bearing zone ** = Gauge installed 3/8/2015 Twin Bays Wetland Restoration Site KCIAssociates of NC, PA DMS Project # 95363 44 2015- MY02