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HomeMy WebLinkAbout20180181 Ver 1_Year 1 Monitoring Report_2021_FINAL_20211022ID#* 20180181 Select Reviewer: Erin Davis Initial Review Completed Date 10/22/2021 Mitigation Project Submittal - 10/22/2021 Version* 1 Is this a Prospectus, Technical Proposal or a New Site?* Type of Mitigation Project:* Stream Wetlands Buffer Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Cara Conder Project Information ID#:* 20180181 Existing ID# Project Type: DMS Mitigation Bank Project Name: Scarborough County: Wayne Document Information O Yes O No Email Address:* cara@waterlandsolutions.com Version:* 1 Existing Version Mitigation Document Type:* Mitigation Monitoring Report File Upload: Scarborough_USACE_MY1_2021_FINAL.pdf 52.38MB Please upload only one PDF of the complete file that needs to be submitted... Signature Print Name: * Cara Conder Signature: * Monitoring Report— MY1 Scarborough Mitigation Project WLS Neuse 02 Umbrella Mitigation Bank Monitoring Year 1 Calendar Year of Data Collection: 2021 Private Commercial Mitigation Bank for Stream and Riparian Wetland Compensatory Mitigation Credits Neuse River Basin (CU 03020202) USACE Action ID Number: SAW-2017-02527 Wayne County, NC Data Collection Period: September/October 2021 Submission Date: October 2021 Prepared for: U.S. Army Corps of Engineers, Wilmington District 69 Darlington Avenue Wilmington, North Carolina 28403-1343 Prepared by: WATER & LAND SOLUTIONS 7721 SIX FORKS ROAD, SUITE 130, RALEIGH, NC 27615 {919) 614 - 5111 I waterlandsclutions.com Table of Contents 1 Project Summary...................................................................................................................................1 1.1 Project Location and Description..................................................................................................1 1.2 Project Goals and Objectives........................................................................................................1 1.3 Project Success Criteria.................................................................................................................2 1.3.1 Single -Thread Streams..........................................................................................................2 1.3.2 Headwater Streams.............................................................................................................. 3 1.3.3 Wetlands...............................................................................................................................4 1.3.4 Vegetation.............................................................................................................................4 1.3.5 Visual Assessment.................................................................................................................4 2 Project Mitigation Components............................................................................................................4 2.1 Project Components.....................................................................................................................4 3 Monitoring Year 1 Assessment and Results.......................................................................................... 5 3.1 Morphological Assessment...........................................................................................................6 3.1.1 Stream Horizontal Pattern & Longitudinal Profile................................................................6 3.1.2 Stream Horizontal Dimension...............................................................................................6 3.2 Stream Hydrology......................................................................................................................... 6 3.2.1 Stream Flow.......................................................................................................................... 6 3.2.2 Bankfull Events......................................................................................................................6 3.2.3 Headwater Stream Channel Formation................................................................................6 3.2.4 Wetland Hydrology...............................................................................................................7 3.3 Vegetation.....................................................................................................................................7 4 Methods................................................................................................................................................7 LIST OF APPENDICES Appendix A Background Tables Table 1 Project Mitigation Components Table 2 Project Activity and Reporting History Table 3 Project Contacts Table 4 Project Information and Attributes Appendix B Visual Assessment Data Figures la-c Current Condition Plan View (CCPV) Photos Stream Station Photographs Vegetation Plot Photographs Crossing and Enhancement II Photographs Appendix C Vegetation Plot Data Table 5a Stem Counts and Densities Table 5b Vegetation Plot Mitigation Success Summary Table 5c Red -line Planting List Appendix D Stream Measurement and Geomorphology Data MY1 Cross -Sections Table 6a Baseline Stream Data Summary Table 6b Cross-section Morphology Data Table 6c Stream Reach Morphology Data Table 6d Evidence of Headwater Channel Formation Appendix E Hydrologic Data Table 7 Verification of Bankfull Events Figure 2 Surface Flow Data Figure 3 Flow Gauge and Crest Gauge Survey Diagram Figure 4 Rainfall Data Figure 5 Groundwater Gauge Data Figure 6 Groundwater Gauge Installation Soil Notes 1 Project Summary 1.1 Project Location and Description The Scarborough Mitigation Project ("Project") is a mitigation bank under the WLS Neuse 02 Umbrella Mitigation Bank. The Project is located approximately four miles southwest of the Town of Goldsboro in Wayne County, NC (35.3211000,-77.98972222). The Project is located within the 8-digit HUC 03020202, in the NC Department of Environmental Quality (NCDEQ) sub -basin 03-04-05 (Warm Water Thermal Regime. The Project involved the restoration, enhancement, and permanent protection of seven stream reaches and their riparian buffers totaling approximately 11,306 linear feet of streams. The Project also included the preservation, re-establishment, and enhancement of riparian wetlands totaling 117.95 acres on the site. The mitigation plan provides a detailed project summary and Table 1 provides a summary of project assets. Figures 1a, 1b, and 1c illustrate the project mitigation components. Monitoring Year 1 (MY1) activities occurred in September and October 2021. This report presents the data for MY1. The Project meets the MY1 success criteria for stream hydrology, stream horizontal and vertical stability, streambed condition and stability, stream flow, and wetland hydrology. All 26 fixed vegetation plots are meeting success criteria. Six of the 15 random vegetation transects are meeting success criteria. Based on these results, the Project is on a trajectory to meet success criteria in Monitoring Year 2 (MY2). For more information on the chronology of the project history and activity, refer to Appendix A, Table 2. Relevant project contact information is presented in Table 3 and project background information is presented in Table 4. 1.2 Project Goals and Objectives The Project will meet the goals and objectives described in the Scarborough Final Approved Mitigation Plan and will address general restoration goals and opportunities outlined in the NC DMS Neuse River Basin RBRP (DEQ 2010). More specifically, watershed goals and management strategies will be met by: • Reducing sediment, soil erosion, turbidity, and nutrient inputs such as nitrogen and phosphorus to the Neuse River Watershed. • Restoring, enhancing, preserving, and protecting headwater streams, wetlands, riparian buffers, and aquatic habitat functions. • Improving riparian corridor management and targeting restoration of impacted streams and riparian buffer areas. To accomplish these project -specific goals, the following objectives will be measured to document overall project success: • Provide a floodplain connection to the incised/channelized Project stream reaches by maintaining bank height ratios (BHRs) between 1.0-1.2, thereby promoting a more natural headwater flow regime and overbank flood flows; • Improve wetland hydrology and vegetation to degraded wetlands by plugging ditches and establishing wet tolerant native species vegetation; • Improve channel bedform diversity by increasing scour pool spacing and depth variability; • Improve aquatic habitat and fish species diversity and migration through the addition of in - stream cover and native woody debris; and • Site protection through a 230.838-acre conservation easement with a minimum width of 50 feet from the top of the restored stream banks. The easement protects all project streams, wetlands, and aquatic resources in perpetuity. 1.3 Project Success Criteria The success criteria for the Project will follow approved performance standards and monitoring protocols from the final approved mitigation plan; which was developed in compliance with the USACE October 2016 Guidance, USACE Stream Mitigation Guidelines (April 2003 and October 2005), and 2008 Compensatory Mitigation Final Rule. Cross-section and vegetation plot data will be collected in Years 0, 1, 2, 3, 5, and 7. Stream and wetland hydrology data and visual monitoring will be reported annually. Specific success criteria components and evaluation methods are described below. 1.3.1 Single -Thread Streams Stream Hydrology: Four separate bankfull or over bank events must be documented within the seven- year monitoring period and the stream hydrology monitoring will continue until four bankfull events have been documented in separate years. Stream hydrology monitoring will be accomplished with pressure transducers installed in pools and correlating sensor depth to top of bank elevation. Recorded water depth above the top of bank elevation will document a bankfull event. The devices will record water depth hourly and will be inspected quarterly. In addition to the pressure transducers, traditional cork gauges were installed at bankfull elevation and will be used to document bankfull events with photographs. Stream Profiles, Vertical Stability, and Floodplain Access: Stream profiles, as a measure of vertical stability and floodplain access will be evaluated by looking at BHR. In addition, observed bedforms should be consistent with those observed for channels of the design stream type(s). The BHR shall not exceed 1.2 along the restored Project stream reaches. This standard only applies to restored reaches of the channel where BHRs were corrected through design and construction. Vertical stability will be evaluated with visual assessment, cross -sections and, if directed by the IRT, longitudinal profile. Stream Horizontal Stability: Cross -sections will be used to evaluate horizontal stream stability on restored streams. There should be little change expected from as -built restoration cross -sections. If measurable changes do occur, they will be evaluated to determine if the changes represent a movement toward a more unstable condition (e.g., downcutting, erosion) or a movement towards increased stability (e.g., settling, vegetation establishment, deposition along the streambanks, decrease in width/depth ratio). Cross -sections shall be classified using the Rosgen Stream Classification method and all monitored cross - sections should fall within the quantitative parameters defined for channels of the design stream type. Reference photo transects will be taken at each permanent cross-section. Lateral photos should not indicate excessive erosion or continuing degradation of the streambanks. Photographs will be taken of both streambanks at each cross-section. A survey tape stretched between the permanent cross-section monuments/pins will be centered in each of the streambank photographs. The water elevation will be shown in the lower edge of the frame, and as much of the streambank as possible will be included in each photo. Photographers will attempt to consistently maintain the same area in each photo over time. 4 Additional photo points will be taken annually at the culvert crossings located on the project at Casey Mill Road and Arrington Bridge Road, and in the Enhancement II section on upper UT2. Streambed Material Condition and Stability: There should be minimal change in the particle size distribution of the streambed materials, over time, given the current watershed conditions and limited upstream sediment supply. Because the streambed material and sediment supply is predominantly sand with minimal gravel, significant changes in particle size distribution and channel substrate are not expected. Jurisdictional Stream Flow: Monitoring of stream flow will be conducted to demonstrate that the restored stream systems, classified as intermittent, exhibit surface flow for a minimum of 30 consecutive days throughout some portion of the year, during a year with normal or below normal rainfall conditions. Stream flow monitoring will be accomplished with pressure transducers installed in pools and correlating sensor depth to the downstream top of riffle elevation. If the pool water depth is at or above the top of riffle elevation, then the channel will be assumed to have surface flow. The devices will record water elevation twice per day and will be inspected quarterly to document surface hydrology and provide a basis for evaluating flow response to rainfall events. A diagram of the flow gauge installation and measurements can be found in Appendix E. 1.3.2 Headwater Streams Seasonal Flow: Surface flow must be documented using automatic pressure transducers (flow gauges). Continuous surface water flow within the valley or crenulation must be documented to occur every year for at least 30 consecutive days during the prescribed monitoring period. This will be accomplished in the same approach as Jurisdictional Stream Flow above. Channel Formation: During monitoring years 1 through 4, a preponderance of evidence must demonstrate a concentration of flow indicative of channel formation within the topographic low -point of the valley or crenulation as documented by the following indicators: • Scour (indicating sediment transport by flowing water) • Sediment deposition (accumulations of sediment and/or formation of ripples) • Sediment sorting (sediment sorting indicated by grain -size distribution within primary flow path) • Multiple observed flow events (must be documented by gauge data and/or photographs) • Destruction of terrestrial vegetation • Presence of litter and debris • Wracking (deposits of drift material indicating surface water flow) • Vegetation matted down, bent, or absent (herbaceous or otherwise) • Leaf litter disturbed or washed away During monitoring years 5 through 7, the stream must successfully meet the requirements above and in addition must demonstrate the development of stream bed and banks as documented by the following indicators: • Bed and banks (may include the formation of stream bed and banks, development of channel pattern such as meander bends and/or braiding at natural topographic breaks, woody debris, or plant root systems) • Natural line impressed on the bank (visible high-water mark) 4 • Shelving (shelving of sediment depositions indicating transport) • Water staining (staining of rooted vegetation) • Change in plant community (transition to species adapted for flow or inundation for a long duration, including hydrophytes) • Changes in character of soil (texture and/or chroma changes when compared to the soils abutting the primary path of flow) 1.3.3 Wetlands Wetland Hydrology: The performance standard for wetland hydrology will be at least 12 percent in the lower elevations (i.e. floodplain areas) and 10 percent along the ridges where hydric soils transition to upland areas. These hydroperiod ranges are based on the suggested wetland saturation thresholds for soils taxonomic subgroups provided by the IRT and as compared with on -site wetland reference data. The proposed success criteria for wetland hydrology will be when the soils are saturated within 12 inches of the soil surface for 10 to 12 percent (23 to 27 days) of the growing season (March 21 through November 6) based on WETS data table for Wayne County, NC. The saturated conditions should occur during a period when antecedent precipitation has been normal or drier than normal for a minimum frequency of 5 years in 10. Precipitation data will be obtained from Seymour -Johnson AFB Airport in Goldsboro, which is approximately one mile northeast from the Project site. A tipping bucket rain gauge was installed on- site for reference data. 1.3.4 Vegetation Vegetation monitoring will occur in the fall each required monitoring year, prior to leaf drop. Plots will be monitored in years 1, 2, 3, 5, and 7. Vegetative success for the Project during the intermediate monitoring years will be based on the survival of at least 320, three -year -old planted stems per acre at the end of Year 3 of the monitoring period; and at least 260, five -year -old, planted stems per acre that must average seven feet in height at the end of Year 5 of the monitoring period. The final vegetative restoration success criteria will be achieving a density of no less than 210, seven -year -old planted stems per acre that must average 10 feet in height in Year 7 of monitoring. 1.3.5 Visual Assessment WLS will conductvisual assessments in support of mitigation performance monitoring. Visual assessments of all stream reaches will be conducted twice per monitoring year with at least five months in between each site visit for each of the seven years of monitoring. Photographs will be used to visually document system performance and any areas of concern related to streambank and bed stability, condition of in - stream structures, channel migration, excess sediment, active headcuts, live stake mortality, invasive plant species or animal browsing, easement boundary encroachments, and general streambed conditions. Permanent photo points will be at the cross -sections, culvert crossings, and Enhancement II reaches. 2 Project Mitigation Components 2.1 Project Components The Project mitigation components included a combination of Stream Restoration and Enhancement, as well as Riparian Wetland Restoration (Re-establishment), Enhancement, and Preservation activities. The mitigation types and approved credits are summarized Table 1. Table 1. As -Built Stream Mitigation Credits (SMCs) Stream Restoration (PI/PII) 1,450 1,861 1:1 1,822 Stream Restoration (PII) 1,176 1,485 1:1 1,485 Stream Restoration 237 241 (PI) 1:1 241 Stream Restoration 1,261 1,166 (HW/PI) 1:1 1,166 Stream Enhancement UT2 (Upper) 590 586 (HW/PI) 4:1 147 Stream Restoration UT2 (Lower) (HW/PI) 1,662 1,712 1:1 1,712 Stream Restoration (HW/PI) 997 1,483 1:1 1,483 Totals 10,181 11,342i Note 1: No mitigation credits were calculated outside the conservation easement boundaries. Note 2: Headwater (HW) stream credits calculated using valley length. Note 3: Credits were adjusted from the mitigation plan at As -built due to an amended conservation easement boundary. Table 1b. As -Built Wetland Mitigation Credits (WMCs) Wetland Preservation 1.180 10:1 0.120 Wetland Re-establishment 107.400 1:1 106.7003 Wetland Enhancement 7.920 3:1 2.640 Note 1: No mitigation credits were calculated outside the conservation easement boundaries. Note 2: No wetland mitigation credits were calculated within the 100 foot wide HW stream corridor. 3 Monitoring Year 1 Assessment and Results The dates of Year 1 monitoring activities are detailed in Appendix A, Table 2. All Year 1 monitoring data is presented in this report and in the appendices. The Project is on track for meeting stream success criteria. Vegetation on the site is doing well overall, but a portion of the random vegetation plots are not meeting criteria. All monitoring device locations are depicted on the CCPV (Figure la-1c). 3.1 Morphological Assessment 3.1.1 Stream Horizontal Pattern & Longitudinal Profile Visual assessment was utilized for assessment of MY1 horizontal and vertical stream stability. The visual assessments for each stream reach document MY1 stream channel pattern and longitudinal profiles, and in -stream structure location/function, which align with the profile design parameters and MYO/baseline conditions (Appendix D). The MY1 planform geometry and dimensions fall within acceptable ranges of the design parameters for all restored reaches. Minor channel adjustments in riffle slopes, pool depths and pattern were observed based on appropriate sediment transport and stream bank vegetation establishment. 3.1.2 Stream Horizontal Dimension The MY1 channel dimensions generally match the design parameters and are within acceptable and stable ranges of tolerance. Eight of the 14 cross -sections are located in coastal headwater restoration reaches and the remaining six cross -sections are located in Priority 1/11 single -thread restoration channels. All six of the PI/II cross -sections show little to no change in the bankfull area and bank height ratios are less than 1.2. It is expected that over time that some pools may accumulate fine sediment and organic matter; however, this is not an indicator of channel instability. Maximum riffle depths are also expected to fluctuate slightly throughout the monitoring period as the channels adjust to the new flow regime and catchment conditions. Headwater cross -sections are expected to fluctuate throughout the initial monitoring years 1-4 as the headwater streams exhibit channel formation. 3.2 Stream Hydrology 3.2.1 Stream Flow The flow gauges on UT1-RI, UT1B, UT3, and UT2 (upper) document that the stream exhibited surface flow for a minimum of 30 consecutive days throughout the monitoring year (Appendix E, Figure 2). Flow gauges 2 and 3 (UT1B and UT2) had data download malfunctions resulting in a loss of data beginning August 5tn 2021. Both gauges were reset with a functioning shuttle on October 15Y, 2021. Additionally, to determine if rainfall amounts are normal for the given year, precipitation data was obtained from the onsite rain gauge, and compared with data from the NC State Climate Office station KGSB, located at Seymour - Johnson AFB approximately one mile northeast of the site. 3.2.2 Bankfull Events During MY1, bankfull events were recorded on both pressure transducers (and the associated crest gauges). UT1-R2 gauge recorded seven events with a maximum event of 1.6 feet above bankfull elevation occurring between June 3 and June 6, 2021. UT2-R2 gauge recorded six events with a maximum event of 1.9 feet above bankfull occurring between June 3 and June 6, 2021. CG-1 (UT1-R2) experienced a data download malfunction that resulted in lost data beginning on August 5tn, 2021. CG-2 (UT2-R2) experienced a gauge malfunction that resulted in lost data beginning June 20tn, 2021. Both gauges were reset with a functioning shuttle on October 15Y, 2021. The associated data is in Appendix E. 3.2.3 Headwater Stream Channel Formation During MY1, streams UT1-RI, UT1B, UT2, and UT3 all exhibited evidence indicative of channel formation within the topographic low -point of the valley. See appendix D (Table 6d) for channel forming evidence documentation. 4 3.2.4 Wetland Hydrology Data for the twenty-six groundwater wells installed is available in Appendix E. All 26 wells are in creditable wetland areas. Thirteen groundwater wells are located within wetlands with a proposed minimum hydroperiod of 10 percent. Of these thirteen, seven are meeting the wetland hydrology criterion. The other thirteen wetland groundwater wells are located within wetlands with a proposed minimum hydroperiod of 12 percent. Of these thirteen, eleven are meeting the wetland saturation threshold. We will continue to monitor the wetland gauges closely and do not plan on taking any remedial actions at this time. Groundwater well locations are shown on Figures la-1c and data is included in Appendix E (Figures 5A and 5B). 3.3 Vegetation Monitoring of the 26 permanent vegetation plots (joint 404/401) and 15 random vegetation transects (50m x2m) was completed during the last week of September 2021. Vegetation data can be found in Appendix C with the associated photos located in Appendix B. The MY1 average planted density is 451 stems per acre, which exceeds the interim measure of vegetative success of at least 320 planted stems per acre at the end of the third monitoring year. All 26 fixed vegetation plots met the interim measure of success for stems per acre. Six of the 15 random vegetation transects met the interim measure of success for stems per acre. Dense herbaceous vegetation made it difficult to locate trees along the random transects. At this time no remedial action is proposed and the areas with lower stem counts will be monitored closely in MY2. Bald cypress (Taxodium distichum) volunteers were noted in MY1, and more species are expected to establish in upcoming years. Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is becoming well established throughout the project. A significant population of kudzu (Pueraria montana) was documented west of UT2 (upper) prior to construction. Initial spray treatments occurred in September 2020. This area will be closely monitored during MY2, and re -sprouts will be treated as needed to prevent further establishment. During MY1 monitoring activities, WLS staff noted the presence of small, isolated populations of common cattail (Typha latifolia) on the project site. There are no adverse effects associated with the cattail (i.e., aggradation, competition). WLS staff will treat cattails during the appropriate treatment window during MY2, as needed. Any subsequent vegetation management for problem or invasive species will be included in the MY2 report. 4 Methods Stream cross-section monitoring was conducted using a Topcon RL-H5 Laser Level. Morphological data were collected at 14 cross -sections. Survey data were imported into Microsoft Excel® for data processing and analysis. The stage recorders include an automatic pressure transducer set in PVC piping in the channel. The elevation of the bed and top of bank at each stage recorder location was recorded to be able to document presence of water in the channel and out of bank events. Visual observations (i.e. wrack or debris lines) and traditional cork crest gauges will also be used to document overbank flow bank events. Vegetation success is being monitored at a total of 26 permanent vegetation plots (each 10m x 10m) and 15 random vegetation plots/transects (each 2m x 50m). The 26 permanent vegetation plots are joint 404/401 and the 15 transects are 404 only. Vegetation plot monitoring follows the CVS-EEP Level 2 4 Protocol for Recording Vegetation, version 4.2 (Lee et al. 2008) and includes analysis of species composition and density of planted species. Data are processed using the CVS data entry tool. In the field, the four corners of each fixed plot were permanently marked with PVC at the origin and rebar at all corners. Random transects were marked in the field with flagging tape on each end of the transect and each stem was marked with flagging tape. Photos of each fixed plot are to be taken from the origin each monitoring year. Tree species and height will be recorded for each planted stem. Random transects will be GPS located/mapped and new locations will be monitored in subsequent years. Wetland hydrology is monitored to document success in wetland restoration and enhancement areas where hydrology was affected. This is accomplished with 26 recording pressure transducer gauges (located in groundwater wells) that record twice daily groundwater levels. Pressure transducers are HOBO Water Level (13ft) Data Loggers made by Onset. Twenty-six data loggers have been installed within the wetland crediting area. Of the 26 located in the credited areas, one was installed within a reference wetland area. One automatic pressure transducer is installed above ground for use as a barometric reference. Gauges are downloaded quarterly and wetland hydroperiods are calculated during the growing season. Gauge installation followed current regulatory guidance. Visual observations of primary and secondary wetland hydrology indicators are also recorded during quarterly site visits. Of the 26 wetland gauges, 15 experienced lost data due to a malfunctioning data download shuttle (Onset HOBO U-DTW-1 Waterproof Shuttle Data Transporter) beginning on August 5t", 2021. All the gauges were reset with a functioning shuttle on October 15Y, 2021. No data was lost during the growing season. Appendix A: Background Tables Table 1: Project Mitigation Components Table 2: Project Activity and Reporting History Table 3: Project Contacts Table 4: Project Information and Attributes EE E E E E E E E _ E _ N N N N N r N N W LU W LU CO N LUI CO m m a tla oT O oT O U U U U U 22 d m m m °- •. aOi .a .. o 0 m m 0] CO CO CO x m x E .. .. .a a 2 'O r r C O N N N O N O m w w 49 wd -O N a'_ W .O- !0 a N d W N N N N N N a a a a o a o c w w 0 0 0 o o E l a m o E o 0 0 0 a` o a a` o o. o. a a m aNi aNi m N N N N O N .� .O E E O t0 N O tp N N N N t0 t0 t0 t0 U U U U O_ N U E d owo w o wo- _ d m E _ E LL LL LL LL ❑ a (/7 U LL C) a a s J J O W N W .T.- N M O O O O O 07 N W W V N r N V N r N W N (p O O O O O O O O O 00 O 00 O O O O O O O O O O CD O O O O O O O O O O 0 0 O O a a x a x x x x LU a a LLI w O co 1") _ (O (D N M O O O O O W (O N co 7 (O W r N V u") co V N W N N N r O r N O O LO (O r r (O O N O r O O coQ O N N � (O 0 N Z W N N N a 3 Scarborough Mitigation Project NumberTable 2. Project Activity and Elapsed Time Since grading complet% Elapsed Time Since planting complet(71 of -•• • Lctivity or Deliverable L 2A. Reporting History (SAW-2017-02527) 11 months 8 months Data Collection CompleteDelivery Completion J� Date N/A 10/4/2018 404 permit date N/A 2/18/2020 Restoration Plan N/A 11 /22/2019 Final Design — Construction Plans N/A 11 /22/2019 Construction N/A 10/21 /2020 Planting N/A 2/20/2021 As -built (Year 0 Monitoring — baseline) 2/22/2021 2/23/2021 Year 1 Monitoring 10/1/2021 10/22/2021 Year 2 Monitoring Year 3 Monitoring Year 4 Monitoring Year 5 Monitoring Year 6 Monitoring Year 7 Monitoring/ Close Out = The number of reports or data points produced excluding the baseline 3. Project Contacts Table ScarboroughTable .. Designer Water & Land Solutions, LLC 7721 Six Forks Rd, Suite 130, Raleigh, NC 27615 Primary project design POC Kayne Van Stell Phone: 919-818-8481 Construction Contractor Wright Contracting, LLC PO Box 545, Siler City, NC 27344 Construction contractor POC Ross Kennedy Phone: 866-809-9276 Survey Contractor WithersRavenel 115 MacKenan Drive, Cary, NC 27511 Survey contractor POC Marshall Wight Phone: 919-469-3340 Planting Contractor Ripple EcoSolutions, LLC 215 Moonridge Road, Chapel Hill, NC 27516 Planting contractor POC George Morris Phone: 919-818-3984 Seeding Contractor Wright Contracting, LLC PO Box 545, Siler City, NC 27344 Contractor point of contact Ross Kennedy Phone: 866-809-9276 Seed Mix Sources Green Resource Phone: 336-588-6363 Nursery Stock Suppliers (Bare Roots Trees) Native Forest Nursery Phone: 706-843-3397 Nursery Stock Suppliers (Bare Roots/Plugs Mellow Marsh Farm Phone: 919-742-1200 Shrubs) Nursery Stock Suppliers (Live Stakes) Mellow Marsh Farm Phone: 919-742-1200 Monitoring Performers Water & Land Solutions, LLC 7721 Six Forks Rd, Suite 130, Raleigh, NC 27615 Stream Monitoring POC Emily Dunnigan Phone: 269-908-6306 Vegetation Monitoring POC Emily Dunnigan Phone: 269-908-6306 Wetland Monitoring POC Emily Dunnigan Phone: 269-908-6306 Project Nerve Scarborough Mitigation Project county Wayne Pmlect Area (sties) 230.838 Project Coordinates (latitude and longitude) 35.319631,-77.985795 Planted Acreage (Acres of Woody Stems Planted) 146.2 acres Physiographic Province Inner Coastal Plain Rmer Grim Neuse U SG S Hydrologic U nit 8Aigit 03020202 U SGS Hydrologic U nit 12Aigd 03020202010 DM Sub -basin 03-04-05 Pmlect Drainage Area (Acresand Square Miles) 603 acres and 0.942 sq. miles Project DrainageA— Percentageoflmpervious Area <1% 2.01.01, 312, 413 (85 % row crop, 10%, CGIA Land use Classification grassland/herbaceous, 5% woody wetland) Parameters Reach UTt-RI Reach UTi-R2 Reach UTi-R3 Length of reach (linear feet) 2,808 1,822 1,485 vaney confinemerd(Confined, moderately confined, unconrmcd) unconfined unconfined unconfined Drainage area (Acresand square Mdes) 214 ac and 0.334 528 ac and 0.825 603 ac and 0.94 sq mi sq mi sq mi Intermittent/ Peren mat, mterminent, Ephemeral Perennial Perennial Perennial NCDM Waterouality Cl.-Matron C, NSW C, NSW C, NSW Stream Classification (e.shng) E5 E5 (incised) E5 (incised) Stream Classification (proposed) DA E5/C5 E5/C5 Evolutionarytmnd (Simon) FEMA classification AE AE AE Parameters W1 Ws swi size of W.U.nd (acres) 2.15 1.18 106.70 Welland Type (non-dpadao, npadan n-nne or np—n non-riverine) RR RR RR Lv, Na, Dr, La, Mapped Soil Series Lv, KaE Lv, Na Le, WkB2 poody drained, somewhat poody drained, poorly drained, poody drained, somewhat poorly Drainage class moderatly well somewhat poorly drained, drained drained excessivly drained, poorly drained, well drained Hydric, Non- Hydric, Non- Hydric,Non- soilHydricstams Hydric, Non-hydri Hyrdic Hydric,Non- Hydric, Hydric, Non-Hydric Groundwater, Groundwater, Sourceof Hydrology Groundwater, Surface Surface Surface HydrologyHydrology Hydrology Resmmfion or enhancement memm (hydrmogc, -getat—etc.) Preservation Preservation RE: Hydr7yeg Parameters Applicable? Resolved? Supporting Docs? Water fthe Unded States - Secbon 404 Yes Yes NWP27 Water fthe Unded Slates - Section 401 Yes Yes NWP27 Endangered Species Act No Yes Prospectus Historic Preservation Act Yes Yes Prospectus Coastal Zone Management Act(CZMA or CAMA) NO N/A INA FEMA Floodplain Compliance Yes Yes Floodplain develop pe-it Essential Fshenes Habitat No N/A N/A Reach UT1A i Reach UTiB i UT2 (Upperl t UT2 (Lower) t UT3 71 ac and 0.111 155 ac and 0.086 sq 113 ac and 0.1771 176 ac and 186 ac and 0.134 sD mi mi sD mi 0.275 so mi sD mi Intermittent I Intermittent I Perennial I Perennial I Intermittent SW2 7.92 RR Lv, Na, Dr poody drained, somewhat poody drained, somewhat poody drained Hydric, Non- Hydric, Non- Hydric Groundwater, Surface Hydrology Appendix B: Visual Assessment Data Figure 1a, 1b, & 1c: Current Condition Plan View (CCPV) Stream Station Photographs (Cross -Sections and Photo Points) Vegetation Plot Photographs w cr (7 LL 3 v� d N a o w c} n� Q .LD 0) �z a_ Co C O O 'E rn o C U O o ci zr z° U d n E 7 N z - N 0Oo O O Q U N O wQ<O r ci R .O •O a� cU •O � L O)O Cr C r r O OU L O N n ,c V/ F Z Lo Q JO 06 - Cie D W J Q0 3 w cr 0 LL 3 > v� N ao a `m w °� V U } n� Q O 0) � a co.ko C: O = O rn o ' U O C z o z D U E = N Z_ N N N 0 0_ 0 N _ _ � } C 0 O w Q 0 U cn Q V R N a O .O a� cU ,O R � O)O } Z A r t r O OU L O N V/,U^) F Z Q 06 JO Cie W J Q O 3 � w macr D 0 LL 3 > v� N ao a `m w °� V U } n� Q O 0) � a co.ko C: O = O rn o ' U O C z o z D U E = N Z_ N N N 0 0_ 0 N _ _ � } C 0 O w Q 0 U cn Q V R N a O .O a� cU ,O R � O)O } Z A r t r O OU L O N V/,U) i Z Q 06 JO W J a0 3 � w cr LL 3 > v� N ao a `m w °� V U } n� Q O 0) � a co.ko C: O = O rn o ' U O C z o z D U E = N Z_ N N N 0 0_ 0 N _ _ � } C 0 O w Q 0 U cn Q V R N a O .O a� cU ,O R � O)O } Z A r t r O OU L O N V/,U) i Z Q 06 JO W J a0 3 � 00 5 {{ i .,•r_�`.w�r:.-,.';;fir=- -.•� - _� � � r r � l g D Ln x M H IL LO t ? f CCV� N � +w mco af`'- CLJ �,. 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N Co N CD i 04 CD O F } 11 . I W N LLI ol n y r �r %J . Gt�i p cu r ICU o CID s 14, Y I ' o.; Q r L p _ iti ^r o0 p O � � � � r CV � _ � S� v i Fv N hH .. Mir i Y �. �� ��` M _ x r. on ICU> T , v O tir ..; O t , ro ro w try n `.{ � r � Ia< . . ..��wa � � - -� � � . 2:« y <� /\� � � �. \\\��� <: f: . . -.� � \ d� \ \��� dd®~. . <� , � �y . »� \ � y \�$��� .� . . , �� } - m� m«,� z. »m-����\.%& � . ? — \ \.� \� \�� 4"A w 1 _ • O ro ai Q _ O LU N Appendix C: Vegetation Monitoring Plot Data Table 5a: Stem Counts and Densities Table Table 5b: Vegetation Mitigation Success Summary Table 5c: Red -line Planting List a) N c-I c-I c-I r-i M —i —i —1 00 rV o � � O N c-I c-I c-I c1 M —i —i —1 00 r4 N O � N N c-I c-I c-I c1 M 00 N O O C a � c-I c-I c-I c-I N l0 l0 c-I Ln 00 O H � r-I O O c-I c-I c-I c-I N l0 l0 O N00 r-I N N c a l0 l0 C O Ln +° a 00 m c ci c I c I N N r-i r-i � N l0 O Ln 41 r-i � � a c 41 O c-I c-I c-I N ci N r-i r-i r-i Ln O I- L0 r-I O r-I O O O U 00 d N r I c I c I N c1 N rl r I c I Ln O O MIS C a O H c-I c-I c-I N N c-I c-I c-I M N Ln O I- _ N � O k.0 o a o o0 N N N m N Ln o o O �0 C a O O C VI C lJJ LM= U (1) w a `; Q L Q) Q) Q) Q) Q) Q) U U U L N Q C NI al 41 t al � C Z C C C (D CL a) O Y ° O a� O- E m O Y E i O Q- a) O t }' O a) p a) m > +' Y C v�i m O v� U t O 3 + O T Q m O Y p Q U m m O Q t U_ Q CL m Q Q U_ Q O O Q O� 3 u E L a"' E E c � E = a) i E " i O � � i Q o 3 3"> 3 3 3 Q 3 o 3 3 u .3 n C� U C Z m vm c j 7 °> v� m X m v u tuo t E � o m O O Oaaj 41 _ (D `" m u u m (D ° i 'u .� m n m O n C m L i 7 i0 p Q v 7 v 7 v 7 v 7 v 7 v 7 v 7 m m W O i i i i i i i O L c.7 a) m > a) m > m �y �y �y �_ Vi 00 U U U Lu LL Z o o C7 C7 C Cf Cf C V F-> 0) r-i r-i r-i m cn ri N N r- k.0 Li 00 00 O O c-I c-I -i M m r-i N N I� l0 ' � N o a o 00 r-i r-i r-i M r+1 r-i f V I� l0 0 J O 00 C � a r-I r-I r-I N N N M N I� l0 c I Lfl 00 � O H O N N N M N I� l0 N O r-I _ r i N p L6 a o 00 00 } 0 r-I r-I r-I N N N M C l0 J Ln O 00 +° a m p En � r1 r1 N m k.o � ri a c QD 41 Q r- O o � r1 r1 N m �o Ln Qj N O f6 0 u 00 a � r1 r1 N m � Ln cJ O � c 1° a r-I c-I N c-I N r-I 00 l0 I" cn N o m O O c-I c-I N c-I N c-I 00 l0 r- ' N p m a o m 000 r-I c-I N -i N -1 00 (.D r- C'n -i rn O N O `n a c ,;� N c LU QJ a 7 O Lu 7 U ° u ° a a Q (D (D ° ° w ° w w (D (D (D w w w w w w ° E N Gl CL N NQj1A Q E In G1 41 G1 v E f6 � Z W Y O Q O a� O Y O O V O Y O UO QT(� T v O WYL t Y Y (U u 'dOA U m m 0 tE U_ 0- CL Q Q U Q O Q O - Qv O co co O dA O co c O m L W � +' i Q o 3 3 a°�o > 3 3 3 Q 3 0 3 3 u .3 n Hai m E m co c co c co co c coE t ° co O C -T o (6 -0 �a OcO E OU O Gl (� •O u O U 'E >° 7 U i u ao " u Q m o-E E c CL Q E E O In v c� co L v i , 7 i0 p Q 7 7 7 7 7 7 7 L > W i i i i i i i O L 7 Q _ 0 °Co V 5. O O t�7Y 7Y 7( 7Y Cn 0O U U U W L.L } Z 0- D V V V V V V V i NO O O � t t +� O NO o VI ° v E E r E E a a L O L E E � � 6 O O O O O d O X X m m U W W Ll Ll 0) N Ln rNi H O � O �� Q a o Lr) O J � �6 O N C Ln`^ a N N r-I N r-I N f j —i m 00 r-1 r-I � fV � ri O O N N r� N r-1 f lj N r1 M 00 r-i _ N N O O LNn � � a N r-I M 00 r-1 O N :° m ac p m r1 N r1 N N M � � � o 4 � a Ln 41 c O O M —i N —i N N M l0 i� — r-I N O O O L1nn U 00 d M r-i N —i N N M C J O Ln C 11j a N M c--1 Ln —1 1-1 N Ln � r-1 O O H N M e-i Ln r-I r-1 N Ln I� r- 'IOb - r I N O l0 o a o vJ N cn r-1 Ln r1 r1 N Ln O O J r-1 O LL c a c -�z N c LLI a 7 O LuQJ 7 U° u o a a Q (3) (3) c c (3) c (3) a) a] a) a a) a a a) a) a) (D c E N Qj al (n (n N +-� N N NQj IA N Q E VI al N al E c m z C E L a) Y Cco Qa) 'Q 0 E O YO EO cC o U (D O t T v v U c Y O U Q Q Q Q U Q O Q O- Q E a) m m O dA a) m m O m i" m+ i Q 0 3 3 oz. z > 3 3 3 Q 3 0 3 3 u .3 n ai E U m m c E z �O - t ;F c m E m c n '� O m 'O v qA —� 0_ U n c �_ O m m u m O +J 0 m E c U m 00..0 i u ao '' u n c> m} m O-E E c n n E E O N c m m L i 7 > p Q 7 7 7 7 7 7 7 m > m m a) i i i i i i i O L 7 Q _ co oz 0co Vi c0 u u u Lu Li- }' :E z a 1 a 0. 0 0 0 > NO ol O rI O O o v E E r E E a 1r L O L E E � � 6 O O O O W W v v O X X m m U W W LL. 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Cf. 0 F-> NO NO ol O r0i O � m t O to E o v E E r cr cr 0 c c O dd L L C C � � C 6 O O O O O d O X X m m U W W Ll Ll 0) cri 00 N N M �--I rl rl N N r� Lfl M OC N M 00 00 a o J O M co N a rl rl N N � Ql O �••� co M r-I ri N N N OC N � o N r-I — o 0 00 a W O C} J 61 O O +° a °° m p m M I:t a+ ri O N d MC ~ r-I ar rl rl rl M m = N UQj d 0 J ri m m p O r' O N rl N N c-I rl c-I rl Ql I� N m m N rl N N rl rl rl rl Ql � N OC N CD— m oob a o c-I N fV rl rl —i rl m I� N CJ O c 10 a "-' L LU c QJ N c 41 W O i D O U Q VI L t L t L t (D (D (D (D (D (D . (D (D (D a) . a . L t C N 41 G1 i i . . . . . . . . . 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Planted Ih lqv"6b Plot Mitigation Success Summarym Success A17verag Volunteers/ Total Criteria Ste 46 Met Heigh Fixed 1 607 0 607 Yes 1.6 Fixed 2 607 0 607 Yes 2.1 Fixed 3 485 0 485 Yes 1.9 Fixed 4 445 0 445 Yes 1.6 Fixed 5 323 0 323 Yes 1.5 Fixed 6 647 0 647 Yes 1.4 Fixed 7 485 0 485 Yes 1.9 Fixed 8 485 0 485 Yes 1.7 Fixed 9 607 0 607 Yes 1.9 Fixed 10 566 0 566 Yes 2.0 Fixed 11 526 0 526 Yes 1.4 Fixed 12 526 0 526 Yes 2.0 Fixed 13 485 0 485 Yes 1.2 Fixed 14 526 0 526 Yes 1.4 Fixed 15 526 0 526 Yes 1.8 Fixed 16 647 0 647 Yes 1.0 Fixed 17 526 0 526 Yes 2.0 Fixed 18 566 0 566 Yes 1.8 Fixed 19 485 0 485 Yes 1.5 Fixed 20 809 0 809 Yes 1.4 Fixed 21 485 0 485 Yes 2.0 Fixed 22 445 0 445 Yes 1.8 Fixed 23 485 0 485 Yes 1.9 Fixed 24 566 0 566 Yes 1.3 Fixed 25 566 0 566 Yes 1.8 Fixed 26 688 0 688 Yes 2.0 Random 27 485 0 485 Yes 1.9 Random 28 283 0 283 No 2.1 Random 29 364 0 364 Yes 1.7 Random 30 121 0 121 No 2.0 Random 31 80 0 80 No 2.2 Random 32 283 0 283 No 2.3 Random 33 364 0 364 Yes 1.8 Random 34 404 0 404 Yes 1.8 Random 35 80 0 80 No 2.0 Random 36 607 0 607 Yes 1.9 Transect 1 283 0 283 No 1.6 Transect 2 283 0 283 No 2.0 Transect 3 202 0 202 No 1.9 Transect 4 202 0 202 No 2.2 Transect 5 323 0 323 Yes 2.2 Project Average 451 0 451 Yes 1.8 Table Sc: Scarborough Mitigation Project Red -line Planting List C mmon Name Stems % Planted Mitigation Betula nigra River birch 8600 7.81% 7% Fraxinus pennsylvanica Green Ash 5000 4.54% 4% Platanus occidentalis American sycamore 9700 8.80% 8% Quercus nigra Water Oak 6600 5.99% 44% T- 9-.9��0� ��'�7%� \A/h\A/ic !a11 CY`C `+7C Quercus michauxii Swamp chestnut oak 8600 7.81% 4% Nyssa biflora Swamp black gum 5700 5.17% 4% Quercus bicolor Swamp white oak 8600 7.81% 4% Taxodium distichum Bald cypress 9000 8.17% 4% Quercus phellos Willow Oak 7500 6.81% 7% Clethra alnifolia Sweet pepperbush 3014 2.74% 6% Carpinus caroliniana Ironwood 3200 2.90% 6% Persea palustris Red bay 2983 2.71% 6% Eubotrys recemosus Swamp doghobble 540 0.49% 6% Magnolia virginiana Sweet bay magnolia 3200 2.90% 6% Cyrilla racimiflora Swamp titi 1900 1.72% 6% Itea virginica Virginia sweetspire 3298 2.99% 6% Quercus pagoda Cherrybark oak 5600 5.08% 0% Quercus laurifolia Laurel oak 7500 6.81% 0% Quercus lyrata Overcup oak 5600 5.08% 0% Viburnum nudum Possomhaw viburnum 4048 3.67 , 0% Total 110,183 100 * changes from mitigation plan in red Appendix D: Stream Measurement and Geomorphology Data MY1 Cross -Sections Table 6a: Baseline Stream Data Summary Table 6b: Cross-section Morphology Data Table 6c: Stream Reach Morphology Data Table 6d: Evidence of Headwater Channel Formation 0 O O O O O r N O N Y O O W a m E y ' I.d _ Y Q •_� 3 � W L w O = ,� .o L Gl L •0 Y 0 S 2 r Ix3 y m C O w ;a a>X 'o m _ 0 C w m w m= w R R O R O R V 5 m J m J m o o 0 co , , , , , , , , , , , , , ' i O ti , , , , , , , , , 1 1 CD (. 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CD CO 'It o o o a/ CD o&/ a /\\ \ CD w w 't CD \ co9 / CD / CD / / / CD co CDg w CD coe % / / , a \ 2 � 6 < § = a � < < n _ S a 2 g fCl Cl f cm a) _ =o g n g=_� 7/ f= = 3 = n _ / \ _ 7= $cl _ \ _� f = \ o= ) 75 c X ® cl ® > 9 / 7 6 ° 0% ° J a ® ^ / ± o= § § \ o ƒ ± o °>J n I g= = n 2 _ _ / O> ._ m == o/ 5 »/ E _ o $ _° ®® D 7 ) g� e a$/\ ■ n 17= / _- 3 D= n o i f _ n= _ = \$ \° 5 / m E= f? = f k a 2� f o f ± f %$LU /\ 0 m> 7 2 n i j n 7 @ n c CO e I I= $% E co 0 o m 7 E / E 2 = i u42 \ f ® .§ _ . § j $ ƒ 7 § m ƒ 2 D § E § k . . ■ o a < )${{}}{tg }\)k}\) )${{}}{, 2E§/t#t} }\)k}\) \j\j )${{}}{tg 2s2xM t} };))}\) co (S ccvi . •� \\\\ .' 25 `©t©i \\ g§;!{ e\{§! )_ !E)£®{!) - ��-- 2/-_f :;o E/®3Lb �)k) k) 0 •. ))!ƒ •' \�)FFH ��\\ ;\\;\ ..... co(D !\ )- - ��-- c 2/:;- {6 �f°) , )\0 o §k) k) \af \ \ 6 � \ ) � k d= a - o O O o � M Q O O O O w w Y o m p w 'o .- � � N m m Y a � L m U J o J a n N '� U 3 m 6 m a_� Z 3> �'n m u- '-° c c m o o NFU` m - m m cam° a o o A u o o o o K a o m m c UY2J10 o `o a �UU m U and U uoi w`= a s o o 0 a10i a o o o e o .3 _ m c n iE N a `o m c a a a N\ U IT a - Hm 0 0 o m O o 0 0 co o 0 v O O N O 7N O W O O O w V o O w Y L J o J a a U o 3 m m Z a_�- 3> 'n o 10 c o m NC7 m m cam° 9 o o m tam o �UY3°o o mv� U ma U s= o K o d a r m a a10i E- o U o c o m cn o o a a a a � y � 111111111111 � � � 111111111111 IIIII111III 111 c Y a 1111 11111 111 E } ; IIIII111III � � � 1111 fn OI = 11111 +R' cC N � 1111 � � � � 111�111�1111 ` O � 11111 ' 11111 IIIII111III 111 11111 IIII111III 111 11111 � � � d 11111 • 2 - ? O - A a16i . arc :' Table 6d. Evidence of Headwater Channel Scarborough Mitigaiton Project Scour (indicating sediment transport by flowing water) Yes Formation Sediment deposition (accumulations of sediment and/or formation of ripples) Na Sediment sorting (sediment sorting indicated by grain -size distribution within primary flow path) No Multiple observed flow events (must be documented by gauge data and/or photographs) Yes Destruction of terrestrial vegetation Yes Presence of litter and debris No Wracking (deposits of drift material indicating surface water flow) No Vegetation matted down, bent, or absent (herbaceous or otherwise) Na Leaf litter disturbed or washed away No Scour (indicating sediment transport by flowing water) Yes Sediment deposition (accumulations of sediment and/or formation of ripples) Na Sediment sorting (sediment sorting indicated by grain -size distribution within primary flow path) No Multiple observed flow events (must be documented by gauge data and/or photographs) Yes Destruction of terrestrial vegetation Yes Presence of litter and debris No Wracking (deposits of drift material indicating surface water flow) No Vegetation matted down, bent, or absent (herbaceous or otherwise) Yes Leaf litter disturbed or washed away Channel Forming Indicators - UT2 No Scour (indicating sediment transport by flowing water) Yes Sediment deposition (accumulations of sediment and/or formation of ripples) Na Sediment sorting (sediment sorting indicated by grain -size distribution within primary flow path) No Multiple observed flow events (must be documented by gauge data and/or photographs) Yes Destruction of terrestrial vegetation Yes Presence of litter and debris No Wracking (deposits of drift material indicating surface water flow) No Vegetation matted down, bent, or absent (herbaceous or otherwise) Yes Leaf litter disturbed or washed away Yes Scour (indicating sediment transport by flowing water) Yes Sediment deposition (accumulations of sediment and/or formation of ripples) Na Sediment sorting (sediment sorting indicated by grain -size distribution within primary flow path) No Multiple observed flow events (must be documented by gauge data and/or photographs) Yes Destruction of terrestrial vegetation No Presence of litter and debris No Wracking (deposits of drift material indicating surface water flow) No Vegetation matted down, bent, or absent (herbaceous or otherwise) Na Leaf litter disturbed or washed away No Appendix E: Hydrologic Data Table 7A and 713: Verification of Bankfull Events Figure 2: Surface Flow Data Figure 3: Flow Gauge & Crest Gauge Diagrams Figure 4: Rainfall Data Figure 5A and 513: Groundwater Gauge Data Figure 6: Groundwater Gauge Soil Notes Date of Collection 3/30/2021 Table 7A: Verification of Bankfull Scarborough Date of Occurrence 1/3/2021 - 1/12/2021 Transducer Events: CG-1 (UT1-R2) i *Backwater from Neuse River* Measurement abovebankfull 3.486 3/30/2021 2/15/2021- 2/27/2021 Transducer *Backwater from Neuse River* 3.947 3/30/2021 3/16/2021 Transducer Bankfull as a result of rainfall 0.388 8/5/2021 6/3/2021-6/5/2021 Transducer Bankfull as a result of rainfall 1.681 8/5/2021 6/10/2021 Transducer Bankfull as a result of rainfall 0.147 8/5/2021 Unknown Crest Gauge Yes 2.2 8/5/2021 7/19/2021-7/20/2021 Transducer Bankfull as a result of rainfall 0.537 8/5/2021 8/4/2021 Transducer Bankfull as a result of rainfall 0.136 10/1/2021 Unknown Crest Gauge Yes 0.8 8/5/2021 10/1/2021 D. 3/30/2021 VerificationTable 7B: Scarborough D. • 1/1/2021 - 1/13/2021 of Bankfull .. la Transducer Events: CG-2 (UT2-112) Photos/Notes A&I *Backwater from Neuse River* Measurement .. bankfull 4.209 3/30/2021 2/4/2021 - 2/6/2021 Transducer Bankfull as a result of rainfall 0.14 3/30/2021 2/13/2021 - 2/28/2021 Transducer *Backwater from Neuse River* 4.66 3/30/2021 3/17/2021 Transducer Bankfull as a result of rainfall 0.85 8/5/2021 6/3/2021 - 6/5/2021 Transducer Bankfull as a result of rainfall 1.984 8/5/2021 6/10/2021 - 6/12/2021 Transducer Bankfull as a result of rainfall 0.212 8/5/2021 Unknown Crest Gauge Yes 2.3 101112021 Unknown Crest Gauge Yes 1.1 8/5/2021 10/1/2021 Figure 2: Surface Flow Diagrams Scarborough Flow Gauge FG-1: UT1-R1 (upper) 3.5 10/1/2021 4 Maximum Days of Consecutive Flow: 260 days (1/15/2021- 10/1/2021) End of MY1 Data 3.5 3 3 +� 2.5 Ln v 2.5 u 2 =— t C a Gj 2 c E 1.5 f6 L— 1.5 `� 1 0 1 0.5 0.5 o �. Ill ��,. d l l 0 N O N O N O N O N N O O N O N O N N N N O O O O N N N O O O N N O O N N O O N O N O N O N N N O O O N N O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! a) N lOO N l\0 00) M n -1 'T 0000 N l\0 n O M n O 'T 00 N L! 01 M N I, ci �--� \ ci \ ci \ N \ \ N m \ m � \ L! \ l\0 ZT Ln \ \ l0 I, \ \ n 00 \ \ 00 Ol \ Ol O ci \ O ci \ r- I r-� r- I ci N N ci ci Rainfall Stream Depth Flow Depth Scarborough Flow Gauge FG-2: UT113 4.5 Ma 4 3.5 3 2.5 a C) 0 E 2 N 1.5 1 0.5 0 ximum Days of Consecutive Flow: 145 days (1/1/2021- 5/25/2021) 4 0. 10/1/2021 End of MY1 Data 4.5 4 3.5 3 a U U C 2.5 c a 1.5 .� 0 1 0.5 0 PV O fV O fV O fV O fV O fV O fV O fV O fV O fV f4 O O f4 O f4 fV fV fV O O O O fV O fV fV fV O O O N O N O N O N O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! a) N lOO N l\0 00) M n -1 'T 0000 N l\0 O n M n O 'T 00 N L! 01 M N I, ci rn �--� \ ci \ ci \ N \ N \ m \ m � \ 'T L! \ Ln lOO \ \ \ l0 I, n \ 00 \ \ \ 00 Ol Ol O ci \ O ci _1 \ _1 ci -1 N ci N ci Rainfall Stream Depth Flow Depth 4.5 4 3.5 a 3 2.5 a C) 0 2 E 1.5 1 0.5 0 Scarborough Flow Gauge FG-3: UT2 ivaaximum ua s or Lonsecunve riow 117 days (1/1/2021- 4/27/2021) Lost data due to download malfunction 10/1/2021 End of MY1 Data ILI 3.5 3 1 0 0.5 0 -i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-1-1-1-1-1 rV O rV O rV O rV O rV O rV O rV O rV O rV rV rV O O O rV O rV rV rV O O O rV O rV O rV rV rV O O O N O N O N O N O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N N rl \ L! c-I O0) N N r1 l\0 N N r1 l\0 N O1 \ rn I, -1 N \ N \ 0000 N lOO r1 \ r1 O rn rn r1 n O 'T N r1 N 00 \ N N L! \ O1 -1\ rn I, -1 r1 rn rl \ r1 \ N \ N \ rn \ rnM T \ Ln \ l0 \ r` \ lO I, \ n \ 00 \ \ \ 00 Ol Ol O r1 \ O rl r1 r1 \ r1 rl N r1 \ N rl \ N rl Rainfall Stream Depth Flow Depth Scarborough Flow Gauge FG-4: UT3 6 Maximum Days of Consecutive Flow: 203 days (1/15/2021 - 8/5/2021) Lost data due to download 5 malfunction 4 L ci 3 0 E cc Gj N 2 — W 1 10/1/2021 End of MY1 Data 3.5 3 2.5 U U 2 c 1.5 a 0 1 0.5 o o ri ri N N O O ri ri ri N N N O O O ri N O ri N O ri ri N N O O ri ri N N O O ri N O ri N O ri ri ri N N N O O O ri N O ri N O ri N O ri N O ri N O ri N O ri N O ri N O ri N O ri N O ri N O N N N N N N N N N N N N N N N N N N N N N N N N N N N rl L! \ c-I \ Oa) N Q00 N r1 N \ \ \ N r1 \ Q00 N \ O1 rn \ N \ I, -1 \ N U) \ 'T \ l0 0000 r1 \ N Q00 O \ r1 rn r` \ \ rn r1 \ n N \ O r1 \ 'T N \ 00 \ O N N \ U' \ r1 O1 c-I \ rn \ N I, -1 \ r1 rn \ rl r1 N N m m Lfl l0 I, n 00 00 Ol Ol r1 O rl r1 r1 rl r1 N rl N rl Rainfall Stream Depth Flow Depth Crest Gauge 6 0 _ 4 t C a C) M 3 E cc L Ln 2 x G 1 Scarborough Crest Gauge CG-1 (UT1-R2) Lost data due to download malfunction 10/1/2021 End of MY1 Data 4 3.5 3 Ln 2.5 U c 2 ZO c cc 1.5 >. 1 0.5 0 �..`� 0 N O N O N O N O N O N O N O N O N N N N O O O O N N N O O O N O N O N N N O O O N O N O N O N O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i LM a) N lOO N l\0 00) M n -1 'T 0000 N l\0 n O M n O q4 00 N L! 01 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ LM \ l\0 Ln \ \ l0 I, \ n \ 00 \ \ \ 00 Ol 01 O ci \ O ci \ ci N ci N ci Rainfall Stream Depth Bankfull Depth Scarborough Crest Gauge CG-2 (UT1-R3) 5 t a 4 C) 0 E L 3 x c 2 1 3.5 3 2.5 Ln U U 2 c 1.5 a 1 � 0.5 0 0 N O N O N O N O N O N O N O N O N N O O N O N O N N N O O O N O N O NN N OOO N O N OOOO N N N O N O NNNNNNNNNNNNNNNNNN N NNN N N N N N rH Ln rH\rH\-1\\ 00) N Q00 N lOO a) M n -1 00 N Q00 O M n O� 00 N Ln 01 M NM , ci ci N N m m \ Ln lOO \nrH\rH\-1 l0 , n 00 \\ 00 Ol Ol ci OrHrH ci rH \N ci rH N ci N ci Rainfall Stream Depth Bankfull Depth Z N Ib Oil 0 LU LL J OLL LL Z ry O N u C C C u u C 0 C F N 4- 0 c O co L ; C CL a) CL L1J CL Q r 0 N + pp Q co N F_ I 0 � L M N N t LJJ N 6i U) LO� Q II II II Q Q Q 0 0 0 O J O O O LL LL LL LL �C O„ 0 L LL J OLL LL Z O N N 4— O c O :7 co N w CL O H m + (C; O N N O i 0 N it N + LU rn �o Q u u u CLCLCL o00 O J O O O LL LL LL LL z0 O„ 0L LL J OLL LL z FY O H N 4— O c O :7 co N W CL O O N +CL co � p it N + W � rn co U) Loo Q u u u CLCLCL o00 O J O O O LL LL LL LL zo 3: r--: O„ 0L LL J OLL LL Z O N N 4- O c O :7 co N w CL O CM O (Y) + L i D Q N N CN i 0 N N + CN LU LO U) Loo Q u u u CLCLCL o00 O J O O O LL LL LL LL w C� Q � (C) w U n w H O= n Ow ry F_ � U (n 0 �Q a-ry F- LU c� Q c� Y ry O IJ J ID LL oZ d �LLJ Im 0 = Hld�]4 2JOSN�IS Q - N r) 4- ca m Q N L O - N U) N ca C� O QL N � 0 - o U a o 0 � W W U m m 75 Q W ry CO H >O W J Z O U W CO CO CO ry U w C� Q C/) M W ry Lo oil w H O= n Ow ry F_ � U U) 0 � Q a-ry F- w c� Q c� Y ry O IJ J LL ID rnZ d Q W 00100 0 = Hld�]4 2JOSN�IS Q N r) 4- ca m Q N L O a) U) N ca C� O QL L M � 70 rn N O I U o 0 W W N U m m 12.00 10.00 8.00 a s v 6.00 RX1117 0.00 Jan-21 Monthly Rainfall Feb-21 Mar-21 Apr-21 May-21 Jun-21 Jul-21 Aug-21 Sep-21 Oct-21 Nov-21 Dec-21 Observed Monthly Rainfall -30th Percentile -70th Percentile *30th and 70th percentile data collected from weather station KGSB- Seymour -Johnson AFB Airport (approximately 1 mi. NE of site) **Incomplete Month Month Jan-21 30th Percentile 3.34 70th Percentile 5.05 Observed Monthly Rainfall 5.97 Feb-21 2.24 4.18 5.86 Mar-21 2.36 4.05 4.87 Apr-21 2.67 4.41 1.33 May-21 2.91 4.86 2.64 Jun-21 2.60 4.97 11.63 Jul-21 4.33 6.26 7.55 Aug-21 4.62 6.39 5.78 Sep-21 4.26 8.31 3.43 Oct-21 1.42 4.00 ** Nov-21 1.61 3.96 ** Dec-21 2.44 4.42 ** Figure 5A Max Consecutive Hydroperiod Saturation within 12 Inches of Soil Surface (Percent of Growing Season ff i of WETS Table for Wayne County, North Carolina Proposed Hydroperiod of 10 % MY1 MY2 MY3 MY4 MY5 MY6 2021 2022 2023 2024 2025 2026 MY7 2027 A Mean Groundwater Gauge 1 15.56% 15.56% Groundwater Gauge 4 8.89% 8.89% Groundwater Gauge 7 87.11% 87.11% Groundwater Gauge 8 87.11% 87.11% Groundwater Gauge 10 8.44% 8.44% Groundwater Gauge 12 28.44% 28.44% Groundwater Gauge 19 4.44% 4.44% Groundwater Gauge 20 5.78% 5.78% Groundwater Gauge 21 4.89% 4.89% Groundwater Gauge 23 5.78% 5.78% Groundwater Gauge 24 26.22% 26.22% Groundwater Gauge 25 28.44% 28.44% Groundwater Gauge 26 28.44% 28.44% Proposed Hydroperiod of 12 % MY1 2021 MY2 2022 MY3 2023 MY4 2024 MY5 2025 MY6 2026 MY7 2027 Mean Groundwater Gauge 2 38.67% 38.67% Groundwater Gauge 3 40.00% 40.00% Groundwater Gauge 5 87.11% 87.11% Groundwater Gauge 6 55.56% 55.56% Groundwater Gauge 9 55.56% 55.56% Groundwater Gauge 11 38.22% 38.22% Groundwater Gauge 13 13.33% 13.33% Groundwater Gauge 14 13.33% 13.33% Groundwater Gauge 15 28.44% 28.44% Groundwater Gauge 16 4.89% 4.89% Groundwater Gauge 17 28.44% 28.44% Groundwater Gauge 18 20.00% 20.00% Groundwater Gauge 22 1 2.22% 1 1 1 1 1 2.22% Fails to meet proposed Groundwater hydroperiod Meets proposed Groundwater hydroperiod Figure 5113: Groundwater Gauge Graphs Scarborough Groundwater Gauge GW-1 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 _30 ■ r■ ■ �u rL u L __ aw .0 ■ u. u u ■■ u■ ■■. ■_ a N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! Oa) N lOO N lOO Oa) M n -1 'T 0000 N n l\O O M n O 'T 00 N L! 01 M N I, �--� \ ci \ ci \ N \ N \ m \ m � \ LM \ m lOO \ lO \ I, \ n \ 00 \ 00 \ Ol \ Ol O ci \ O ci \ ci N ci Rainfall Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-2 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 -30 ■ r■� �� ■ �■� aL ■�■■ ■ i�u .�■■�r nn ■■ ■� ■ u■ ur ■ a 0 O O 0 rI40 O rI40 O rI40 O rI40 O rI40 O rI40 O rI40 O rI40 O 0 O O 0 0 O O 0 O 0 rI40 O rI40 O rI40 O rI40 O rI40 O N O rI40 O rI40 O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! Oa) N lOO N lOO O0) M n -1 'T 0000 N n l\O O M n O 'T 00 N L! 01 M N I, �--� \ ci \ ci \ N \ N \ m \ m � \ LM \ m lOO \ lO \ r, \ n \ 00 \ 00 \ Ol \ Ol O ci \ O ci \ ci N ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 IC 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � 0 Scarborough Groundwater Gauge GW-3 15 10 5 U U 0 L fl- -5 0 L -10 3 15 0 L 0 -20 -25—I— -1—� 1.-- ----� — -30 - -- -- - ..- --- - — --- — - - — - - - - --- — -- -- N O N O N O N O N N O O N O N O N O N O N N O O N O N O N O N N O O N O N O N O N O N O N O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! a) N loo N loo a) M n ! -1 'T 0000 N l\0 O M n O 'T 00 N L! 0) M I, �--� \ ci \ ci \ N \ \ N m \ m T \ L \ loo Ln \n-1\-1\-1\\ l0 r` r` 00 00 01 0) ci \N ci N ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-4 3.5 3 2.5 N U C 2 c 1.5 cc a 1 � 0.5 IC 15 20 days: 8.89% of Growing Season 10/1/2021: End of MY1 Data 3.5 10 H 3 ; 5 U 2.5 N 0 Cj t -C a _5 2 U C Cj- o Cj -10 1.5 Aft of C -15 c 1 M 0 L 0 -20 .5 0 -25 -30 0 N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 U' 0\1 N Q00 N l\0 0\1 M n -1 'T 0000 N n loo O M n O 'T 00 N Ul 01 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ L! \ Lfl QOO \ l0 -- I, \ r` \ 00 \ 00 \ 01 \ 01 O ci \ O ci \ ci N ci r 4 ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-5 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -30 - - -- -- - - -- --- — --- ...—.. - - — - - - - - ---- - — -- -- I' 0 N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N N N N N N N N fV N N N N N N N N N N N N N N N N N N c\i L! a) N lOO N l\0 00) M n -1 'T 0000 N n l\0 O M n O 'T 00 N L! O1 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ zT Lt \ Ln l\0 \ l0 \ I, \ n \ 00 \ 00 \ Ol \ Ol O ci \ O ci c1 \ -1 ci c1 N ci N ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-6 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � N N N N N rI40 rI40 rI40 rI40 rI40 N N N N N N N O O O O O O 0 O 0 O O 0 0 O O 0 0 O O O 0 O O O 0 O 0 O 0 O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 L! 00) N l\0 N l\0 00) M n -1 0000 N lOO O M n O 'T 00 N L! O1 M I, ci �--� \ \ \ \ \ \!\\n-1\-1\-1\\\N T \ L \ l0 ci ci N N m m zT Ln l0 I, n 00 00 Ol Ol ci O c-I c1 ri c-I c-I N c-I fV c-I Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-7 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -30 - - -- -- - - -- --- — --- ...—.. - - — - - - - - ---- - — -- -- I' 0 N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N N N N N N N N fV N N N N N N N N N N N N N N N N N N c\i L! Oa) N loo N l\0 00) M n -1 'T 0000 N n l\0 O M n O 'T 00 N L! O1 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ zT Lt \ Ln l\0 \ l0 \ I, \ r` \ 00 \ 00 \ 0) \ 0) O ci \ O ci c1 \ -1 ci c1 N ci N ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-8 196 days: 87.11% of Growine Season 15 10 5 5 U U 0 L fl- -5 0 �Cj -10 3 -15 0 0 -20 -25 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 ■ .■ . ■ �■ �L ., . , �L .� ■ ■ L. �L ■� ■■ ■■■ u . L 0 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 rI40 N N N N N N N O 0 O O O O O O O O O 0 O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! 00) N l\0 N l\0 00) M n -1 'T 0000 N l\0 O M n O 'T 00 N L! 0) M I, ci �--� \ \ \ \ \ \ \ L! \ l\0 \ n \ \ \ \ \ \ O \ \ N ci ci N N m m Ln l0 I, r` 00 00 0) 0) ci O ci -1 -1 ci -1 N ci fV ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-9 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -30 - - -- -- - - -- --- — --- ...—.. - - — - - - - - ---- - — -- -- I' 0 N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N O N N N N N N N N fV N N N N N N N N N N N N N N N N N N c\i L! a) N lOO N l\0 00) M n -1 'T 0000 N n l\0 O M n O 'T 00 N L! O1 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ zT L! \ Ln l\0 \ l0 \ I, \ n \ 00 \ 00 \ Ol \ Ol O ci \ O ci c1 \ -1 ci c1 N ci N ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-10 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 ■ �■i ■i ■ �u �� ii i�l a i r��a u■� Dui_ ■■ ■i i iu �L i a 0 rI40 rI40 rI40 rI40 rI40 rI40 rI40 N N N N N N N O 0 0 O O 0 O O O O O O O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O O 0 0 O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 L! 0\1 N lOO N lOO a) M n -1 'T 0000 N Q00 O M n O 'T 00 N L! O1 M I, ci �--� \ \ \ \ \ \ � \ L! \ lOO \ n \ \ \ \ \ \ O \ rH \ N c-I c-I N N m m m lO I, n 00 00 Ol Ol c-I O c-I ­1 ri c-I c-I N c-I fV c-I Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-11 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -30 - - -- -- - - -- --- — --- ...—.. - - — - - - - - ---- - — -- -- I' 0 ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O N N N N N N N N fV N N N N N N N N N N N N N N N N N N c\i L! a) N to N l\0 00) M n -1 'T 0000 N n l\0 O M n O 'T 00 N L! O1 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ zT Lt \ Ln l\0 \ l0 \ I, \ r` \ 00 \ 00 \ 0) \ 0) O ci \ O ci ci \ ci ci ci N ci N ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 Scarborough Groundwater Gauge GW-12 64 days: 28.44% of Growing Season 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -3O 0 ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci r140 r140 r140 r140 r140 N N N N N N N N N N N O 0 0 O 0 O O O O O O 0 O 0 O 0 O 0 O 0 O O 0 0 O 0 O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! 0\1 N to N to a) M n -1 'T 0000 N Q00 O M n O 'T 00 N U' O1 M I, ci �--� \ \ \ \ \ \ � \ LM \ lOO \ n \ \ \ \ \ \ O \ c\i \ N ci ci N N m m m l0 I, r` 00 00 Ol Ol ci O ci ci ri ci ri N ci fV ci Rainfall - Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-13 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 L! Oa) N lOO N lOO Oa) M n -1 'T 0000 N l\O O M n O 'T 00 N L! 01 M I, ci �--� \ \ \ \ \ \\n\\-1\-1\\\N T \ M \ lOO ci ci N N m m m lO I, n 00 00 Ol Ol ci O ci ci ci ci ci N ci N ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-14 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 0 ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! O\1 N lOO N lOO Oa) M n -1 'T 0000 N l\O O M n O 'T 00 N U' O1 M I, ci �--� \ \ \ \ \ \ � \ LM \ lOO \ n \ \ \ \ \ \ O \ c\i \ N ci ci N N m m m lO I, n 00 00 Ol Ol ci O ci ci ri ci ri N ci fV ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season 15 item 5 5 �Cj -10 3 -15 0 0 -20 -25 Scarborough Groundwater Gauge GW-15 64 days: 28.44% of Growine Season Lost data due to download 10/1/2021 - End of MY1 Data malfunction 141i 3.5 3 2.5 N L C 2 c 1.5 m a 1 M 0.5 -30 0 ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O ci N O N N N N N N N N rV N N N N N N N N N N N N N N N N N N c\i LM a) N loo N t\0 00) M n -1 'T 0000 N r, t\0 O M n O 'T 00 N LM O1 M N n ci �--� \ ci \ ci \ N \ N \ m \ m � \ zT Lt \ Ln t\0 \ l0 \ n \ n \ 00 \ 00 \ Ol \ Ol O ci \ O ci \ -1 ci N ci N ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-16 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 ■ L L L■■ L 0 ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci r140 r140 r140 r140 r140 N N N N N N N N N N N 0 O 0 O 0 O O O O O O 0 O 0 O 0 O O 0 0 O O 0 O 0 O 0 O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i LM 0\1 N loo N loo a) M n -1 'T 0000 N to O M n O 'T 00 N U' O1 M n ci �--� \ \ \ \ \ \ � \ LM \ tOO \ n \ \ \ \ \ \ O \ c\i \ N ci ci N N m m M to n n 00 00 Ol Ol ci O ci ci ri ci ri N ci r4 ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-17 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 dew Ell .. ■ L ,.7I1111111111111 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O -i N O N N N N N N N N fV N N N N N N N N N N N N N N N N N N c\i L! a) N to N l\0 00) M n -1 'T 0000 N n l\0 O M n O 'T 00 N L! O1 M N I, ci �--� \ ci \ ci \ N \ N \ m \ m � \ ZT Lt \ Ln l\0 \ l0 \ I, \ r` \ 00 \ 00 \ 0) \ 0) O ci \ O ci ci \ ci ci ci N ci N ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 Scarborough Groundwater Gauge GW-18 45 days: 20.00% of Growing Season 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 0 ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! 0\1 N to N to a) M n -1 'T 0000 N Q00 O M n O 'T 00 N U' O1 M I, ci �--� \ \ \ \ \ \ � \ LM \ lOO \ n \ \ \ \ \ \ O \ c\i \ N ci ci N N m m Lfl l0 I, r` 00 00 Ol Ol ci O ci ci ri ci ri N ci fV ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-19 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! a) N lOO N lOO a) M n -1 'T 0000 N l\0 O M n O 'T 00 N L! 01 M I, ci �--� \ \ \ \ \ \ � \ LM \ lOO \ n \ \ \ \ \ \ O \ \ N ci ci N N m m Ln l0 I, n 00 00 Ol Ol ci O ci c1 -1 ci c1 N ci N ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-20 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 L! 00) N l\0 N l\0 00) M n -1 'T 0000 N lOO O M n O 'T 00 N L! O1 M I, ci �--� \ \ \ \ \ \!\\n T \ L \ l0 N ci ci N N m m zT Ln l0 I, n 00 00 Ol Ol ci O c-I -1 -1 c-I c1 N c-I fV c-I Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-21 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -30 0 c-I c-I c-I ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 L! 00) N to N to a) M n -1 0000 N l\0 O M n O 'T 00 N L! 01 M I, ci �--� \ \ \ \ \ \ T \ M \ lOO \n\\-1\-1\\\N ci ci N N m m m to I, r` 00 00 Ol Ol ci O ci ci ci ci ci N ci N ci 15 10 5 5 0 -20 -25 Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-22 5 days: 2.22% of Growing Season 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 0 ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci r140 r140 r140 r140 N N N N N N N N N N N 0 O O 0 O 0 0 O O 0 0 O O O O O 0 O 0 O 0 O O 0 0 O 0 O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! 0\1 N to N to a) M n -1 'T 0000 N Q00 O M n O 'T 00 N U' O1 M I, ci �--� \ \ \ \ \ \ � \ LM \ lOO \ n \ \ \ \ \ \ O \ c\i \ N ci ci N N m m Lfl l0 I, r` 00 00 Ol Ol ci O ci ci ri ci ri N ci fV ci Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-23 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 -30 0 N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! a) N loo N loo a) M n -1 'T 0000 N l\o O M n O 'T 00 N L! 01 M I, ci �--� \ \ \ \ \ \ � \ LM \ lO \ n \ \ \ \ \ \ O \ \ N ci ci N N m m Ln to I, r` 00 00 Ol Ol ci O ci c1 -1 ci c1 N ci N ci 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-24 59 days: 26.22% of Growing Season 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 0 N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N -1 U' O\1 N loo N loo a) M n -1 'T 0000 N l\o O M n O 'T 00 N U' O1 M I, ci �--� \ \ \ \ \ \ � \ LM \ lO \ n \ \ \ \ \ \ O \ rH \ N c-I c-I N N m m m to I, r` 00 00 Ol Ol c-I O c-I ­1 ri c-I c-I N c-I fV c-I Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-25 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 3.5 3 2.5 N U C 2 c 1.5 of a 1 � 0.5 N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! O\1 N loo N loo a) M n -1 'T 0000 N l\o O M n O 'T 00 N L! O1 M I, ci �--� \ \ \ \ \ \ \ M \ lO \n-1\-1\-1\\ rH \ N� ci ci N N m m Lr) to I, r` 00 00 Ol Ol c-I O c-I c1 r1 c-I ci N ­1 N ­1 15 10 5 5 U U 0 L fl- -5 0 0 -20 -25 Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Scarborough Groundwater Gauge GW-26 64 days: 28.44% of Growing Season 3.5 3 2.5 -- N U C 2 c 1.5 of a 1 � -30 11 Lb1 J 1 ll_IL 7l■■li LLl ■■ ■L L L■■ L 0 N N N N N N N N N N N N N N N N N N N N N N N N O O O O 0 O O O O O O O O 0 O O O O O O O O O O O O 0 N N N N N N N N N N N N N N N N N N N N N N N N N N N c\i L! O\1 N loo N loo a) M n -1 'T 0000 N l\o O M n O 'T 00 N L! O1 M I, ci c-1 \ \ \ \ \ \ \ M \ lO \n\\-1\-1\\ rH \ N� ci ci N N m m m to I, r` 00 00 Ol Ol c-1 O c1 ci ci c1 ci N c1 fV c1 Rainfall — Groundwater Depth Ground Level 12" Below Surface Growing Season Figure 6: Groundwater Gauge Soil Conditions at Installation (MYO) • • .. GW-1 0-8 10 YR 2/2 100 Clay Loam 8-16 10 YR 2/2 100 Clay Loam 16-32 10 YR 3/1 80 10 YR 5/8 20 Clay 32-48 10 YR 5/1 50 10 YR 6/8 50 Clay GW-2 0-30 10 YR 4/1 75 10 YR 2/1 20 Sandy Clay 10 YR 5/6 5 30-36 10 YR 4/1 90 10 YR 5/6 10 Sandy Clay 36-48 10 YR 4/1 70 10 YR 5/6 30 Sand GW-3 0-18 10 YR 2/1 100 Clay Loam 18-22 10 YR 5/2 80 10 YR 5/6 20 Clay 22-36 10 YR 6/1 90 10 YR 6/6 10 Clay 36-42 10 YR 6/1 100 Loamy Clay 42-48 10 YR 6/2 100 Sand GW-4 0-8 10 YR 2/1 100 Clay Loam 8-20 10 YR 3/1 90 10 YR 5/8 10 Clay 20-36 10 YR 5/1 80 10 YR 6/8 20 Clay 36-48 10 YR 5/1 98 10 YR 5/6 2 Clay GW-5 0-18 10 YR 2/1 100 Loamy Clay 18-32 10 YR 4/1 100 Clay 32-48 10 YR 5/1 100 Sandy Clay GW-6 0-24 10 YR 2/1 100 Clay 24-40 10 YR 4/1 70 10 YR 5/8 30 Clay GW-7 0-36 10 YR 2/1 100 Sand GW-8 0-6 10 YR 2/1 100 Clay Loam 6-12 10 YR 2/1 100 Clay 12-36 10 YR 4/1 100 Sand GW-9 0-18 10 YR 5/1 80 10 YR 5/6 20 Loamy Clay 18-44 10 YR 4/1 90 10 YR 5/3 10 Sandy Clay Loam 44-48 10 YR 6/1 100 Loamy Sand GW-10 0-15 10 YR 2/1 100 Clay 15-30 10 YR 2/1 60 10 YR 5/1 30 Sandy Clay 10 YR 4/6 10 30-48 10 YR 3/1 100 Sand GW-11 0-3 10 YR 2/2 100 Clay 3-24 10 YR 4/1 75 10 YR 5/8 25 Clay 24-36 10 YR 4/1 100 Sandy Clay GW-12 0-16 10 YR 3/1 100 Clay 16-28 10 YR 4/1 65 10 YR 6/2 30 Clay 10 YR 3/6 5 28-34 10 YR 4/1 90 10 YR 4/4 10 Sandy Loam 34-48 10 YR 6/1 100 Sand GW-13 0-12 10 YR 2/1 100 Clay Loam 12-22 10 YR 4/1 90 10 YR 5/4 10 Clay 22-30 10 YR 3/2 100 Loamy Sand 30-48 10 YR 5/1 100 Sand GW-14 0-10 10 YR 3/2 100 Clay 10-24 10 YR 4/2 70 10 YR 5/6 30 Clay 24-36 10 YR 4/3 100 Sand GW-15 0-6 10 YR 3/1 100 Clay 6-18 10 YR 5/2 85 10 YR 5/8 15 Clay 18-36 10 YR 5/2 100 Sand GW-16 0-24 10 YR 3/2 80 10 YR 4/6 20 Sandy Clay 24-36 10 YR 3/2 100 Sand GW-17 0-18 2.5 YR 2/1 100 Clay 18-26 2.5 YR 2/1 100 Sandy Clay 26-36 10 YR 3/1 95 10 YR 3/6 5 Sandy Loam 36-48 10 YR 5/1 100 Sand GW-18 0-16 10 YR 2/1 95 10 YR 3/4 5 Clay 16-26 10 YR 5/1 90 10 YR 4/6 10 Clay 26-38 10 YR 4/2 100 Sandy Loam 38-48 10 YR 5/4 100 Sand GW-19 0-22 10 YR 3/1 100 Sandy Clay 22-36 10 YR 5/1 100 Sand GW-20 0-32 10 YR 2/1 100 Loamy Clay 32-36 10 YR 4/2 100 Sandy Loam 36-48 10 YR 5/2 100 Sand GW-21 0-22 10 YR 4/2 70 10 YR 5/8 30 Clay 22-36 10 YR 4/2 70 10 YR 5/8 30 Sandy Clay GW-22 0-36 10 YR 5/2 60 10 YR 5/8 40 Clay GW-23 0-14 5 YR 2.5/1 100 Loamy Clay 14-18 10 YR 2/1 80 10 YR 3/6 20 Sandy Loam 18-28 10 YR 3/1 95 10 YR 4/6 5 Clay 28-34 10 YR 4/1 90 10 YR 2/1 10 Sandy Clay 34-48 10 YR 3/1 100 Sand GW-24 0-18 10 YR 2/2 100 Clay 18-36 10 YR 3/4 80 10 YR 2/2 20 Clay GW-25 0-36 10 YR 6/2 60 10 YR 5/8 40 Clay GW-26 0-30 10 YR 3/1 100 Clay 30-48 10 YR 5/1 90 10 YR 5/6 10 Clay