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Home My WebLink About20091236 Ver 2_Year 2 Monitoring Report_20170418LOWER CAPE FEAR UMBRELLA MITIGATION BANK BRUNSWICK COUNTY, NORTH CAROLINA YEAR 2 MONITORING REPORT WHITE SPRINGS TRACT Prepared For: U.S. Army Corps of Engineers. Wilmington District and Inter -Agency Review Team (IRT) Prepared By: LMG LAND MANAGEMENT GROUP. - Land Management Group, Inc. Wilmington, NC www.lmgroup.net April 2017 TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY.................................................................................................................. 2.0. PROJECT OVERVIEW.....................................................................................................................2 A. Introduction................................................................................................................................2 B. Mitigation Goals and Objectives..............................................................................................2 C. Project Implementation.............................................................................................................2 3.0. MONITORING REQUIREMENTS A. Wetland Restoration............ B. Stream Restoration ............ .4 .4 .5 4.0 MONITORING RESULTS.................................................................................................................7 A. Vegetation Monitoring...............................................................................................................7 B. Hydrologic Monitoring (Wetlands)...........................................................................................8 1. Summary of Precipitation...................................................................................................8 2. Pocosin.............................................................................................................................9 3. Wet Pine Savanna..............................................................................................................9 4. Small Stream Swamp.......................................................................................................12 C. Stream Monitoring...................................................................................................................12 1. Photo-Documentation.......................................................................................................12 2. Ecological Function..........................................................................................................12 3. Channel Stability/Survey Procedures...............................................................................12 (a.) Cross -Sections (First Order Channel).......................................................................12 (b.) Longitudinal Profile (First Order Channel).................................................................14 (c.) Stream Flow Monitoring (First Order Channel).........................................................14 D. Contingency Measures...........................................................................................................15 5.0 CONCLUSION................................................................................................................................16 LIST OF FIGURES, TABLES, AND APPENDICES Figure1................................................................................................................. White Springs Vicinity Map Figure 2.....................................................Aerial Photograph with Site Boundary Overlay (Pre -Construction) Figure 3A...............................................................................................Aerial Photograph with Well Overlay Figure 3B........................................................................ Aerial Photograph with Stream Monitoring Overlay Figure4.................................................................................................................Wetland Community Types Table 1................................................................................. Vegetation Plots and Wells by Community Type Table2...................................................................................................................... Vegetation Data by Plot Table 3................................................................ Summary of Year 2 Hydrologic Monitoring Data (Pocosin) Table 4 ....................................... Summary of Year 2 Hydrologic Monitoring Data (Non -Riparian Reference) Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract Year 2 Annual Monitoring Report (April 2017) Table 5 ................................................ Summary of Year 2 Hydrologic Monitoring Data (Wet Pine Savanna) Table 6 .......................................... Summary of Year 2 Hydrologic Monitoring Data (Small Stream Swamp) Table 7........................................................................ Summary of Year 2 Bankfull Event Monitoring (2016) AppendixA.......................................................................................................................... Site Photographs Appendix B............................................................................................... Vegetative Monitoring Data (2016) Appendix C....................................................................................... Palmer Hydrologic Drought Index Maps Appendix D............................................................................................ North Carolina Drought Status Maps AppendixE....................................................................................................................... Hydrographs (2016) Appendix F........................................................................................................... Stream Morphological Data Appendix G...............................................................................................OHWM Indicators in Stream Valley Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract Year 2 Annual Monitoring Report (April 2017) 1.0 EXECUTIVE SUMMARY LCFUMB LLC (Bank Sponsor), has completed Year 2 annual monitoring of the White Springs Tract of the Lower Cape Fear Umbrella Mitigation Bank. The White Springs Tract encompasses 72 acres, including 66.1 acres of non -riparian (i.e. pocosin and wet pine savanna) wetland restoration and 1.8 acres of riparian wetland restoration (small stream swamp). In addition, 1,312 If of first -order stream channel has been restored near the down -gradient section of the site. A total of 72 acres have been placed into a perpetual conservation easement for the long-term protection of the site. Restoration activities included Priority II restoration of the first order single -thread stream channel. Upstream of the first -order stream restoration, the existing, incised channel was widened, and its bed elevation raised. Lateral ditches that flowed into the channel (including both the first -order stream and the ditch upstream) were backfilled with spoil from the channel work and plugged with clay material. The restored riparian wetland valley associated with the restored first -order stream was planted with characteristic wetland trees. All restoration work (including earthwork and plantings) was completed in April 2015. (Refer to the As -Built Report submitted June 2015 for more detailed information regarding the implementation of the White Springs Tract). Per the approved restoration plan, monitoring of the site includes the assessment of both hydrologic and vegetative conditions over the course of a seven-year monitoring period. Following the completion of the earthwork, a total of three (3) 0.05 acre plots were established in the riparian wetland planted area. A total of thirteen (13) shallow groundwater monitoring wells were installed throughout the site (including 2 gauges within the first -order stream channel). Hydrologic monitoring was conducted throughout the year (January 1 through December 31, 2016). The annual vegetation monitoring was conducted in September 2016. Based upon the data collected, planted areas exhibit a high rate of survivorship of characteristic wetland tree seedlings. The hydrologic response to restoration efforts is also evident via groundwater and surface water data collected. Hydrologic residency times have been increased, and wetland hydroperiods have been re- established across the majority of the site. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract Year 2 Annual Monitoring Report (April 2017) 2.0 PROJECT OVERVIEW A. Introduction Construction of the White Springs Tract (72 acre project area) portion of the Lower Cape Fear Umbrella Mitigation Bank was initiated in February 2015. The tract is located east of NC Hwy 133 (River Road SE) and immediately north of the Military Ocean Terminal at Sunny Point (MOTSU) Access Road approximately 4 miles north of Southport, NC (Figure 1). The site boundary is depicted in Figure 2.1 The project includes approximately 66.1 acres of non -riparian (i.e. pocosin and wet pine savanna) wetland restoration, 1.8 acres of riparian (small stream swamp) wetland restoration, and 1,312 linear feet of first -order stream restoration. Restoration activities included earthwork (back -filling lateral ditches, installing reinforced clay plugs, and the Priority II restoration of the first order single - thread stream channel); raising and widening the incised channel above the first -order stream; planting of characteristic riparian wetland vegetation; and the installation of monitoring devices. The White Springs portion of the Lower Cape Fear Umbrella Mitigation Bank is intended to provide suitable, high- quality wetland mitigation for authorized impacts within the Lower Cape Fear River Basin (Cataloging Unit 03030005). B. Mitigation Goals and Objectives The objective of the White Springs restoration project is to provide for the functional restoration and ecological up -lift of wetland and stream habitat via the re-establishment of characteristic hydrologic conditions and vegetative assemblages. It is anticipated that a number of key wetland functions and values will be restored including floodwater retention/abatement, sediment retention, nutrient transformation, and increased habitat connectivity. The project offers the unique opportunity to restore a wetland complex that includes a first -order single thread stream, riparian small -stream swamp, non - riparian pocosin, and non -riparian pine savanna. C. Project Implementation Restoration activities were initiated in February 2015. Restoration work included Priority II restoration of the first order single -thread stream channel. Upstream of the first -order stream restoration, the ' Note that a conservation easement for the property was recorded and conveyed to the Land Trust for America. The recorded conservation easement plat was submitted with the Mitigation Banking Instrument. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 2 Year 2 Annual Monitoring Report (April 2017) existing, incised channel was widened, and its bed elevation raised. Grading work (including the removal of spoil piles) along this segment of the reach has resulted in the establishment of a low flow valley contiguous with restored first order reach. Lateral ditches that flowed into the channel (including both the first -order stream and the ditch upstream) were backfilled with spoil from the channel work and plugged with clay material. Backfilling of ditches and the primary outlet canal in conjunction with the restoration of the stream channel is intended to restore characteristic wetland hydroperiods for non -riparian wetlands of the site. Planting of the restored riparian wetland valley associated with the restored first -order stream was conducted by Land Management Group, Inc. in April 2014. Plant material was provided by South Carolina SuperTree Nursery (Blenheim, SC). Bald cypress (Taxodium distichum) were planted in the valley bottom while Atlantic white cedar (Chamaecyparis thyoides) were planted on the valley slopes. A total of 3,000 seedlings were planted across the 1.8 acre riparian wetland restoration area. As part of the implementation of the restoration plan, LMG installed a total of eleven (11) automated shallow groundwater monitoring wells (RDS, Inc. WM-40s) within the 67.9 -ac restoration area (Figure 3A). The number of monitoring wells installed was proportional to the area of each community type. Per the restoration plan, seven (7) wells were installed in pocosin, two (2) wells were installed in pine savanna, and two (2) wells were installed in riparian wetlands. These wells were installed on March 26 and April 14 (2015). In addition, a total of three (3) automated wells have been installed within the identified non -riparian reference wetland area immediately east of the mitigation site (Figure 3A). Data from the reference wells will be used for comparative analyses to evaluate the hydrology of the wetland restoration areas. In addition to the groundwater monitoring wells, two (2) stream gauges were installed in the restored first -order stream channel (Figure 3B). These gauges will document bankfull events. The stream gauges were installed on March 26, 2015 (SG2) and April 14, 2015 (SG1). Three (3) permanent 0.05 -ac vegetation plots were randomly established within the 1.8 -ac riparian wetland restoration area. The four (4) corners of each plot are marked with rebar and flagged PVC. GPS coordinates are provided in Figure 3B. The number of wells and vegetation plots by community type are provided in Table 1. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 3 Year 2 Annual Monitoring Report (April 2017) Table 1. Vegetation Plots and Wells by Community Type Community Type Area/Length (ac/ft) Vegetation Plots Monitoring Wells Wet Pine Savanna 7.3 0 2 Pocosin 58.8 0 7 Riparian Wetland 1.8 3 2 First -Order Stream 1,312 (If) 0 2 (gauges) Non -restorable Areas 4.1 0 0 TOTAL 72 3 13 3.0 MONITORING REQUIREMENTS A. Wetland Restoration Annual monitoring is being conducted near the end of each growing season for a period of seven years. This monitoring includes both a vegetative and hydrologic component per the approved restoration plan. The vegetative component includes an assessment of the conditions within each of the three 0.05 -ac permanent monitoring plots that have been established in the riparian wetland restoration area. Hydrologic monitoring is being conducted via the 11 wells installed throughout the wetland restoration areas. The following are the specific success criteria for both the vegetation and hydrologic monitoring of the wetland restoration areas. (1) Demonstrated density of planted species to meet or exceed 210 trees per acre at the end of 7 years (post -planting). (2) No single volunteer species (most notably, red maple, loblolly pine, and sweet gum) will comprise more than 50% of the total composition at year 2 or 3. If this occurs, remedial procedures will be implemented. During years 4 &5, no single volunteer species, comprising Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 4 Year 2 Annual Monitoring Report (April 2017) over 50% of the total composition, may be more than half the height of the planted trees. If this occurs, remedial procedures will be implemented. (3) The hydrologic criterion is premised on the specific community type to be restored. (a) For the riparian small stream swamp community, the hydrologic criterion will be the establishment of a static water table at, or within, 12" of the soil surface for 12% of the growing season (equivalent to 36 days based upon a growing season between February 1st and November 30th)2 during periods of normal precipitation conditions. (b) For the non -riparian pocosin community, the hydrologic criterion will be the establishment of a static water table at, or within, 12" of the soil surface for 10% of the growing season (equivalent to 30 days based upon a growing season between February 1st and November 301h)2 during periods of normal precipitation conditions. (c) For the non -riparian pine savanna community, the hydrologic criterion will be the establishment of a static water table at, or within, 12" of the soil surface for 7% of the growing season (equivalent to 21 days based upon a growing season between February 1st and November 301h)2 during periods of normal precipitation conditions. B. Stream Restoration The primary success criteria for the First Order Stream are: Documentation of 2 bankfull events using techniques discussed below within a normal rainfall year in 3 of the 5 years of monitoring. Additional monitoring may be necessary in the event of abnormal climatic conditions. Level 1 Monitoring will be employed as detailed in the Stream Mitigation Guidelines, April 2003. Monitoring will occur every year for the five year monitoring period. Monitoring reports will be prepared each monitoring year and will include a discussion of any deviations and whether they are indicative of a stabilizing or destabilizing situation. Level 1 Monitoring includes the following: 2 Growing season based upon direction of IRT. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract Year 2 Annual Monitoring Report (April 2017) (1) Photo -Documentation Extensive photo documentation is included in the stream monitoring phase of this project. Photos will be taken at all permanent cross-sections on a bi-annual basis (winter and summer) in addition to any problem areas that may develop after construction is completed. Photos will be georeferenced to the corresponding cross-section and/or problem area as part of the submitted report. Photo documentation will also be used to document the health of the riparian area plantings and the effectiveness of any erosion control measures. (2) Ecological Function The health of the riparian vegetation will be documented as part of the wetland restoration monitoring efforts. Three 0.05 -acre permanent monitoring plots have been established throughout the riparian wetland restoration including areas directly adjacent to the restored channel. The success criteria for wetland restoration are provided in Section 3A above. (3) Channel Stability/Survey Procedures a. Cross -Sections (First Order Channel) The White Springs Tract includes the restoration of 1,312 If of first order Coastal Plain stream. The restoration mimics low gradient, low velocity stream reaches characteristic of the outer Coastal Plain. No hardened materials (i.e. rock structures) were used. Rather, natural materials (such as root wads and log vanes) will assist with channel stabilization and grade control. Given the size, uniform design, and gentle slope (0.36%) of the project, four permanent cross-sections have been established on approximate 330 -ft intervals of stream length. Placement of these stations has been designed to assess the performance of potential problem areas (e.g. severe erosion, structural failure, etc.). These stations are also distributed between riffles and pools (two in riffles and two in pools) throughout the project. Refer to Figure 313 depicting the approximate location of the cross-sections. b. Longitudinal Profiles (First Order Channel) Given the length of the restored channel (1,312 If), a longitudinal profile of the entire restored reach will be performed. Data presented in the annual monitoring reports will be shown in comparison to as -built conditions. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 6 Year 2 Annual Monitoring Report (April 2017) c. Stream Flow Monitoring (First Order Channel) Documentation of stream flow within the project will also be conducted. Following stream construction activities, two (2) stream gauges were installed (Figure 313). These gauges will measure the elevation of water in the channel on an hourly basis and will be used to determine the cross-sectional area of the channel under a variety of flow conditions. 4.0 MONITORING RESULTS (YEAR 2) A. Vegetation Monitoring A total of 104 planted stems were enumerated throughout the three 0.05 -ac plots. For planted species, the total number of stems identified corresponds to an average density of 700 stems per acre (35 stems per 0.05 -ac plot) within the riparian wetland restoration area (Table 2). All of the plots exceeded the Year 7 minimum of 11 stems. As indicated above, bald cypress were planted in the valley bottom while Atlantic white cedar were planted on the valley slopes. Therefore, bald cypress is the only planted species in the vegetation monitoring plots. Several woody volunteers, including inkberry (Ilex glabra), fetterbush (Lyonia lucida), and redbay (Persea borbonia) were identified throughout the riparian wetland corridor. The presence of these desirable volunteer species has contributed increased diversity and is indicative of the targeted wetland community type. No single volunteer species comprised more than 50% of the total composition in any of the monitoring plots. Refer to Appendix A for photographs of current site conditions. A comprehensive plot data table is provided in Appendix B. Table 2. Vegetation Data by Plot3 3 Plots are 0.05 -acre in size (20m X 10m). Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 7 Year 2 Annual Monitoring Report (April 2017) Plot 1 Plot 2 Plot 3 Planted (P) Species Common Name or N o C4 o N o Volunteer Taxodium distichum bald cypress P 44 44 31 34 29 30 TOTAL 44 44 31 34 29 30 3 Plots are 0.05 -acre in size (20m X 10m). Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 7 Year 2 Annual Monitoring Report (April 2017) B. Hydrologic Monitoring (Wetlands) As indicated above, a total of thirteen (13) hydrologic monitoring wells/gauges were installed throughout the site. Of these thirteen (13) wells/gauges, eleven (11) wells are located within the restored wetland areas. The number of wells installed within each restoration community type (pocosin, wet pine savanna, and riparian small stream swamp) is proportional to the acreage of each community type. 1. Summary of Precipitation Regional drought indices, including the Palmer Drought Index and the North Carolina Division of Water Resources (DWR) Drought Status Maps, were examined to interpret precipitation patterns and predicted subsurface water storage conditions relative to long-term climatic data. In particular, the Palmer Hydrological Drought Index maps depict hydrological (long-term cumulative) drought and wet conditions, which more accurately reflect groundwater conditions. Based upon the 2016 index maps, the Brunswick County area of North Carolina exhibited normal groundwater conditions on a monthly basis during July and August. The area was considered to be moderately moist in March, April, June, and September. Groundwater conditions were considered to be very moist in January, May, November, and December. The area was considered to be extremely moist in February and October. The Palmer Hydrologic Drought Index maps for 2016 are included in Appendix C. The NC Drought Status Monitoring Program compares existing data to long-term (1965-2013) climatic conditions for well data, stream baseflow data, and combined well and baseflow data. Contoured percentile data (30th/70th percentiles) are graphically displayed on monthly drought images. Based upon these maps, subsurface storage (i.e. groundwater) conditions were considered normal during April through August, October, and November. Subsurface storage conditions were considered above normal during January through March, September, and December. The NC DWR Drought Status Maps for 2016 are included in Appendix D. The nearest rain gauge (Sunny Point - NSUN) documented variable rainfall conditions throughout the year. Local rainfall data are included in the hydrographs in Appendix E. Rainfall conditions were generally normal in mid-April through early May, June through early October, early November, and December. Rainfall conditions were below normal (<30th percentile) in most of May. Precipitation was Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract g Year 2 Annual Monitoring Report (April 2017) generally above normal (>70th percentile) from January through early April, October, and late November. Total rainfall for the year was 67.23 inches. According to the WETS long-term climatic data, mean annual rainfall for Southport, NC is 60.71 inches (with a 30% chance of having less than 55.73 inches of annual precipitation and a 30% chance of having more than 65.88 inches of annual precipitation). As a result, total annual precipitation for the 2016 calendar year is considered above normal based upon the data from the Sunny Point (NC) CRONOS station. 2. Pocosin Within the areas targeted for pocosin restoration, six (6) of the seven (7) wells exhibited hydroperiods of greater than 10% of the growing season (the hydrologic success criterion for pocosin). The observed mean length of the hydroperiod during the growing season (February 1 through November 30) for these wells was 73 days (equivalent to 24.0% of the growing season). The observed hydroperiods for these wells ranged between 16.8% of the growing season (Well #3) and 29.9% of the growing season (Well #6). The one well not meeting success criteria (Well #10) exhibited a water table within 12 inches of the soil surface for only 2 consecutive days during the growing season. Well #10 is situated on the shoulder slope of the stream valley. As a result, there is more rapid discharge of groundwater toward the stream at this location and corresponding decreased hydroperiods. With the exception of Well #10, hydroperiods of the pocosin restoration wells closely resemble the non -riparian reference wells. Refer to Table 3 for a summary of the hydrologic data for the pocosin restoration wells. Refer to Table 4 for a summary of the hydrologic data for the non -riparian reference wells. Hydrographs are provided in Appendix E. 3. Wet Pine Savanna Both of the wells in the wet pine savanna restoration areas exhibited hydroperiods greater than 7% of the growing season (the hydrologic success criterion for wet pine savanna). The observed mean length of the hydroperiod during the growing season (February 1 through November 30) for these wells was 55 days (equivalent to 18.1 % of the growing season). The observed hydroperiods were 11.8% of the growing season (for Well #11) and 24.0% of the growing season (for Well #7). Refer to Table 5 for a summary of the hydrologic data for the wet pine savanna restoration wells. Refer to Table 4 for a summary of the hydrologic data for the non -riparian reference wells. Hydrographs are provided in Appendix E. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 9 Year 2 Annual Monitoring Report (April 2017) Table 3. Summary of Year 2 Hydrologic Monitoring (Pocosin) 2016 Growing Season February 1 - November 30 1 Well malfunction Jun 9 — Sep 6 Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 10 Year 2 Annual Monitoring Report (April 2017) Longest Number Of Percentage of 10% Total Number of Consecutive Days Dates of Longest Number of Growing Success >6 - 12.5 25- Well Number days within 12" Meeting Wetland Consecutive Days Meeting Season Criteria (30 ° 12.5 /0 - ° 75 /o ° >75/0 (Jan 1— Dec 31) Hydrology Criteria Wetland Hydrology Criteria (Feb 1 — Days) 25% Nov 30) 1 261 83 Feb 1 - Apr 23 27.3 Yes -- -- X -- 2 183 56 Sep 2 - Oct 27 18.4 Yes -- X -- -- 3 172 51 Sep 2 - Oct 22 16.8 Yes -- X -- -- 4 226 78 Feb 1 - Apr 18 25.7 Yes -- -- X -- 5 211 76 Feb 1 - Apr 16 25.0 Yes -- -- X -- 6 323 91 Sep 1 - Nov 30 29.9 Yes -- -- X -- 10' 5 2 Feb 4 - 5 / Feb 7-8 0.7 No -- -- -- -- 1 Well malfunction Jun 9 — Sep 6 Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 10 Year 2 Annual Monitoring Report (April 2017) Table 4. Summary of Year 2 Hydrologic Monitoring (Non -Riparian Reference Wells) 2016 Growing Season February 1 - November 30 Table 5. Summary of Year 2 Hydrologic Monitoring (Wet Pine Savanna) 2016 Growing Season February 1 - November 30 Longest Number Of Percentage 7% Total Number of Consecutive Days Dates of Longest Number of of Growing Success >6 - 12.5 25- Well Number days within 12" Meeting Wetland Consecutive Days Meeting Wetland Season Criteria (21 ° 12.5 /° - ° 75 /° ° >75/° (Jan 1—Dec 31) Hydrology Criteria Hydrology Criteria (Feb 1— Days) 25% Nov 30) Ref 1 226 74 Feb 1 - Apr 14 24.3 Yes -- X -- -- Ref 2 208 53 Feb 1 - Mar 24 / Sep 2 - Oct 24 17.4 Yes -- X -- -- Ref 3 249 77 Feb 1 - Apr 17 25.3 Yes -- -- X -- Table 5. Summary of Year 2 Hydrologic Monitoring (Wet Pine Savanna) 2016 Growing Season February 1 - November 30 1 Well malfunction Jan 5 — Jan 9, Jan 16, and Jan 9 — Mar 15 Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 11 Year 2 Annual Monitoring Report (April 2017) Longest Number Of Percentage of Total Number of Consecutive Days Dates of Longest Number of Growing ° 7% Success >6 - 12.5 25- Well Number days within 12" Meeting Wetland Consecutive Days Meeting Season Criteria (21 12'5% - 75% ° >75/° (Jan 1 — Dec 31) Hydrology Criteria Wetland Hydrology Criteria (Feb 1— Days) 25% Nov 30) 7' 265 73 Sep 1 — Nov 12 24.0 Yes -- X -- -- 11 126 36 Sep 13 — Oct 18 11.8 Yes X -- -- -- 1 Well malfunction Jan 5 — Jan 9, Jan 16, and Jan 9 — Mar 15 Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 11 Year 2 Annual Monitoring Report (April 2017) 4. Small Stream Swamp Both of the wells in the small stream swamp restoration area exhibited hydroperiods greater than 12% of the growing season (the hydrologic success criterion for small stream swamp). The observed mean length of the hydroperiod during the growing season (February 1 through November 30) for these wells was 138 days (equivalent to 45.4% of the growing season). The observed hydroperiods were 44.4% of the growing season (for Well #9) and 46.4% of the growing season (for Well #8). Refer to Table 6 for a summary of the hydrologic data for the small stream swamp restoration wells. Hydrographs are provided in Appendix E. C. Stream Monitoring 1. Photo -Documentation Extensive photo documentation was implemented during Year 2 for the stream monitoring phase of this project. Site visits were conducted and photographs were taken at all permanent cross-sections and potential problem areas on several occasions during Year 2 monitoring. Photos were geo- referenced to the corresponding cross-section and potential problem area. Photo documentation was also used to document the health of the riparian area plantings and the effectiveness of erosion control measures. Refer to Appendix A for photographs of site conditions throughout Year 2 monitoring. 2. Ecological Function The health of the riparian vegetation was documented as part of the wetland restoration monitoring efforts. Three (3) 0.05 ac. permanent monitoring plots were established throughout the riparian wetland restoration area including areas directly adjacent to the restored channel. Reference the vegetation monitoring section for monitoring results. 3. Channel Stability/Survey Procedures (a.) Cross -Sections (First Order Channel) The Lower Cape Fear Umbrella Mitigation Bank has restored 1,312 If of Coastal Plain stream on the White Springs Tract. The restoration has mimicked low gradient, low velocity stream reaches characteristic of the outer Coastal Plain. No hardened materials (i.e. rock structures) were used. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 12 Year 2 Annual Monitoring Report (April 2017) Table 6. Summary of Year 2 Hydrologic Monitoring (Small Stream Swamp) 2016 Growing Season February 1 - November 30 1 Well malfunction Jan 5 — Mar 15 Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 13 Year 2 Annual Monitoring Report (April 2017) Longest Number Of Percentage of Total Number of Consecutive Days Dates of Longest Number of Growing ° 12% Success >6 - 12.5 25- Well Number days within 12" Meeting Wetland Consecutive Days Meeting Season Criteria (36 12.5% - 75% ° >75/° (Jan 1 — Dec 31) Hydrology Criteria Wetland Hydrology Criteria (Feb 1— Days) 25% Nov 30) 8 339 141 Feb 1 — Jun 20 46.4 Yes -- -- X -- 9' 290 135 Mar 16 — Jul 28 44.4 Yes -- -- X -- 1 Well malfunction Jan 5 — Mar 15 Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 13 Year 2 Annual Monitoring Report (April 2017) Rather, natural materials (such as root wads and log vanes) have assisted with channel stabilization and grade control. Given the size, uniform design, and gentle slope (0.36%) of the project, cross-sections were established on approximate 330 -ft intervals of stream length (totaling 4 permanent stations). Placement of these stations was designed to assess the performance of potential problem areas (i.e. severe erosion, structural failure). These stations were also evenly distributed between riffles and pools throughout the project. Refer to Figure 3B for the locations of the cross-section monitoring stations. Year 2 and baseline cross-section surveys are provided in Appendix F. A dimensional morphology summary table comparing Year 2 data to as - built (baseline) data is also provided in Appendix F. Reference the As -Built Report for more detailed information regarding baseline conditions. (b.) Longitudinal Profile (First Order Channel) Given the length of the restored channel (1,312 If), a longitudinal profile of the entire restored reach was performed. The Year 2 and baseline longitudinal surveys are provided in Appendix F. A stream survey data summary table comparing Year 2 data to as -built (baseline) data is also provided in Appendix F. Reference the As -Built Report for more detailed information regarding baseline conditions. (c.) Stream Flow Monitoring (First Order Channel) As indicated above, a total of two (2) gauges were installed within the stream channel to document bankfull events on an hourly basis. These gauges capture the upper and middle sections of the stream. Gauge SG1 was placed furthest up -gradient (third stream meander from source) in order to capture bankfull events at the head of the restored stream reach. Gauge SG2 is located approximately 600 feet further down the stream. Refer to Figure 3A for a map depicting the locations of these gauges. Surface water and flow were documented in each of the two (2) gauges over several periods during the monitoring year. The valley exhibits a gentle slope (0.36%) from the upper end to the lowest end. The amplitude of the surface water varied at each gauge. Gauge SG1 exhibited a bankfull event six (6) times during the monitoring period. Gauge SG2 recorded four (4) bankfull events during the monitoring period. Both gauges exhibited bankfull events simultaneously during four (4) time periods (Feb 4-5, Feb 7-8, Sep 2-3, and Oct 8-9). The duration of each bankfull event ranged from several hours to three (3) consecutive days. The three-day antecedent rainfall recorded prior to bankfull events ranged from 2.33 inches to 9.38 inches. Refer to Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 14 Year 2 Annual Monitoring Report (April 2017) Table 7 for a summary of bankfull events during Year 2 monitoring. Hydrographs are included in Appendix E. Hourly hydrographs are included for the dates where both stream gauges recorded overbank flooding. Video and/or photographic evidence of flow was recorded following rainfall events several times throughout the monitoring year. Video evidence of flow is provided on the enclosed DVD. General site photographs which include evidence of flow are provided in Appendix A. Ordinary High Water Mark (OHWM) indicators within the stream channel and floodplain were also observed during multiple site visits. Observed physical indicators of an OHWM consisted of the following: (1) natural line impressed on the bank; (2) changes in the character of soil; (3) presence of litter and debris; (4) wracking; (5) vegetation matted down, bent, or absent; (6) sediment sorting; (7) scour; (8) deposition; (9) multiple observed flow events; (10) bed and banks; (11) water staining; and (12) change in plant community. OHWM photos are provided in Appendix G. Table 7. Summary of Year 2 Bankfull Event Monitoring (2016) D. Contingency Measures Stream banks and in -stream structures (i.e. root wads, log vanes, etc.) were monitored for evidence of surface bank erosion (i.e. down -cutting) several times throughout the monitoring year. Some bank erosion was observed adjacent to the log vanes. These log vanes are located between the two downstream cross-sections Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 15 Year 2 Annual Monitoring Report (April 2017) Longest Gauge Number Total Number of Bankfull Events Number of Consecutive Days During Dates of Bankfull Event(s) 3 -Day Antecedent Rainfall (Inches) (Sunny Point - NSUN) Bankfull Event Feb 4-5 4.39 (through 2/5) Feb 7-8 3.51 (through 2/7) SG1 6 3 Aug 3 4.42 (through 8/3) Sep 2-4 9.38 (through 9/3) Oct 1 2.33 (through 10/1) Oct 8-9 3.24 (through 10/8) Feb 4-5 4.39 (through 2/5) Feb 7-8 3.51 (through 2/7) SG2 4 2 Sep 2-3 9.38 (through 9/3) Oct 8-9 3.24 (through 10/8) D. Contingency Measures Stream banks and in -stream structures (i.e. root wads, log vanes, etc.) were monitored for evidence of surface bank erosion (i.e. down -cutting) several times throughout the monitoring year. Some bank erosion was observed adjacent to the log vanes. These log vanes are located between the two downstream cross-sections Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 15 Year 2 Annual Monitoring Report (April 2017) (XS3 and XS4). Refer to the As -Built Report for more specific information regarding the location of these in - stream structures. There is an increase in the slope of the stream along this portion of the reach that is contributing to increased erosive forces. Therefore, some bank erosion is expected as the restored stream adjusts to dynamic equilibrium. However, bank stabilization contingency measures were recently employed to reduce basal erosion of banks in these localized areas. Transplants of local riparian vegetation (i.e. fetterbush) were recently planted on the stream bank slopes to provide a buffer during high flow events. These contingency measure appear to be effectively aiding bank stabilization. Also as a result of higher velocity flow in this relatively steeper portion of the stream, some minor aggradation has been documented in the pool at the cross-section located furthest downstream (XS4). Based on comparisons of cross-section survey data between baseline and Year 2 monitoring, this aggradation appears to be relatively minor and does not appear to have any significant adverse effects on stream geomorphology or function. Hydrologic data confirm the re-establishment of hydrology characteristic of the target habitats across the vast majority of the site as a result of the earthwork completed during the early growing season. Removal of the large outlet canal in conjunction with the re -contouring of the first -order stream valley has resulted in the connection of headwater wetland areas to White Springs Creek. There has been a discernible hydrologic response indicating the restoration of key hydrologic functions relating to water storage and groundwater recharge within the system. Vegetation and hydrologic monitoring of the project area indicate that the site is progressing well during the second yearfollowing the implementation of the restoration activities. Vegetation data document high rates of survivorship among the planted species (R stem density = 700 stems per acre). No significant vegetation issues were noted. Overall, the site appears to be progressing well toward the targeted wetland community types. The restoration site is already providing key wetland functions via the reduction of sediment/nutrient runoff; increased nutrient retention/transformation; increased floodwater storage; and the enhancement and protection of wildlife habitat. With the exception of the area around Well #10, wetland hydrology has been reestablished across the site. Well #10 is located on the shoulder slope of the stream valley and consists of sandier soils contributing to more Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 16 Year 2 Annual Monitoring Report (April 2017) rapid discharge of groundwater to the stream valley. The site will be continued to be monitored over the next five years (through Year 7), and the findings of such will be provided in subsequent annual monitoring reports for agency review and concurrence. Lower Cape Fear Umbrella Mitigation Bank — White Springs Tract 17 Year 2 Annual Monitoring Report (April 2017) FIGURES MISS I �P I r �runm f �4 133 87 ' } I SITE I LIT a *Boundaries are approximate and are not meant to be absolute. Map Source: DeLorme: North Carolina Atlas and Gazetteer., 1997 p. 87. Lower Cape Fear Umbrella Mitigation Bank (White Springs Tract) 0 1 2 Brunswick County Miles Figure 1. White Springs Vicinity Map LMGLAND MANAl�2MHh•T CROUP E��I,o��.e�Ga, Cu�fYl1011fa = clot is -_ -• f�k ows Pt • +IPpi1Pp.' _4y 5utxta t i J :� '`�' � � � �1f '� ,�. I � ' Prig`s CreeIc ,�-• Lighthouse P, 9, D 977 *Boundaries are approximate and are not meant to be absolute. Map Source: DeLorme: North Carolina Atlas and Gazetteer., 1997 p. 87. Lower Cape Fear Umbrella Mitigation Bank (White Springs Tract) 0 1 2 Brunswick County Miles Figure 1. White Springs Vicinity Map LMGLAND MANAl�2MHh•T CROUP E��I,o��.e�Ga, Cu�fYl1011fa e s4..Y , l .. • ,�'H x 06 a.. Y Y(1F ^r - •, -, SkSck y„ kLP _ r tit i� a M1 r wqi 5 - 1�1ss g O 7K � AL vi Y �} J Tr` 1k +a- _ zZ t4 R4:4''jW r � '� �.. :;f4'Fi�x.'°°; s .� tx +! � * ��• � ':.7i` . d u.: - •,.•° - � , ' - i � -: � ' ��. 'f�.. �• � �� k,yK.A°-_� , _ • .e t � R�4 .. �. •��i„ 7 ri..a1�4!!. ., -. s *Boundaries are approximate and are not meant to be absolute. SCALE 1" = 300' Map Source: 2012 NC OneMap Aerial Photography (when printed at 11"x1T) Lower Cape Fear Umbrella LM+G Figure 2. 1.ANUR1ANAG.r,MfNTGROUPr - Mitigation Bank � F��r,aR�erl,e,Co,t, 011 1s Aerial Photograph Brunswick County, NC www.lmgroui).net with Site Boundary Overlay 3805 Wrightsville Avenue (Pre -Construction) LMG # 01-13-038A Wilmington, NC 28403 Phone: 910.452.0001 Fax: 910.452.0060 Boundaries are approximate and are not meant to be absolute. Map Source: 2012 NC OneMap Aerial Photography SCALE 1" = 300' (when printed at 11"x1T) Lower Cape Fear Umbrella LMG ,�Np MANAGWEM GROUP we Mitigation Bank r�w.a��A,o1�oR,v nnr Figure 3A. Brunswick County, NC www.lmgroup.net Aerial Photograph 3805 Wrightsville Avenue with Well Overlay LMG # 01-13-038A Wilmington, NC 28403 Phone: 910.452.0001 Fax: 910.452.0060 t ® Reference well O Stream Gauge Vegetation Plot R ° Cross -Section Profile p Stream Restoration *Boundaries are approximate and are not meant to be absolute. SCALE 1" = 150' Map Source: 2012 NC OneMap Aerial Photography (when printed at 11"x17r') Lower Cape Fear Umbrella LM+� 1.ANV MANAi 6;WTNf GROUP cuc Mitigation Bank Fn Y.a�� o1�oR,ukYnnr Figure 313. Brunswick County, NCAerial Photograph www.lm�roup.net 3805 Wrightsville Avenue with Stream Monitoring Overlay LMG # 01-13-038A Wilmington, NC 28403 Phone: 910.452.0001 Fax: 910.452.0060 GPS Coordinates VPI VP2 VP3 33.987720 corner 1 33.987345 corner 1 33.987107 corner 1 -78.028097 -78.027242 -78.026653 33.987623 corner 2 33.987265 corner 2 33.987022 corner 2 -78.028152 -78.027323 -78.026678 33.987658 corner 33.987185 corner 33.987068 corner -78.027895 -78.027122 -78.026443 33.987592 corner4 33.987138 corner4 33.986992 corner4 -78.027928 -78.027178 -78.026480 t ® Reference well O Stream Gauge Vegetation Plot R ° Cross -Section Profile p Stream Restoration *Boundaries are approximate and are not meant to be absolute. SCALE 1" = 150' Map Source: 2012 NC OneMap Aerial Photography (when printed at 11"x17r') Lower Cape Fear Umbrella LM+� 1.ANV MANAi 6;WTNf GROUP cuc Mitigation Bank Fn Y.a�� o1�oR,ukYnnr Figure 313. Brunswick County, NCAerial Photograph www.lm�roup.net 3805 Wrightsville Avenue with Stream Monitoring Overlay LMG # 01-13-038A Wilmington, NC 28403 Phone: 910.452.0001 Fax: 910.452.0060 Stream Restoration Riparian Wetland Restoration 1.8 ac Pine • • -0-0- • • Savannah Non Riparian Wetland Restoration 58.8 ac Pocosin Non Restorable Areas 4.1 ac Total Mitigation Bank Site 72 ac (Conservation Easement) Monitoring Well (11) O PRELIMINARY NOTE: This Is Not An Engineered, Survey, or Architectural Drawing. Linear Measurements and Area Calculations are Approximate. Reference Well (3) ® NOTE: Parcel Boundaries From Brunswich County GIS. Aerial is dated 2014. 0 200 400 800 APPENDIX A. SITE PHOTOGRAPHS (1) View of bald cypress at Vegetation Plot 2 (June 2016) (2) View of riparian plantings (November 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP—. Environmental Consultants Site Photographs Annual Monitoring (Year 2) (3) View of Vegetation Plot 1 (September 2016) (4) View of Vegetation Plot 2 (September 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP—. Environmental Consultants Site Photographs Annual Monitoring (Year 2) (5) View of overbank flooding (June 2016) (6) View of overbank flooding (June 2016) N Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP— Environmental Consultants Site Photographs Annual Monitoring (Year 2) s tE} s`�� k X33, �•`.� Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP— Environmental Consultants Site Photographs Annual Monitoring (Year 2) (7) View of overbank flooding (June 2016) (8) View of overbank flooding (June 2016) p Al. Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP—. Environmental Consultants Site Photographs Annual Monitoring (Year 2) (9) View of inundated floodplain during bankfull event (September 2016) (10) View of overbank flooding (September 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP iNc. Environmental Consuhan[s Site Photographs Annual Monitoring (Year 2) (11) View of restored stream (June 2016) (12) View of restored stream (June 2016) -, , i Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP—. Environmental Consultants Site Photographs Annual Monitoring (Year 2) (13) View of restored stream (June 2016) L2 (14) View of restored stream (June 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP— Environmental Consuhants Site Photographs Annual Monitoring (Year 2) (15) View of restored stream (June 2016) (16) View of restored stream (June 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP— Environmental Consultants Site Photographs Annual Monitoring (Year 2) w ♦ t �`. .j :M a i,• X + t •. : � haw � ��'t `-. +M ry i, �.. ,�• J ' �'a-�K►r ttfF - �i M� �- :�� v.� yam. ,A+.yr Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP— Environmental Consultants Site Photographs Annual Monitoring (Year 2) (17) View of cross-section XS1 looking upstream (June 2016) (18) View of cross-section XS1 looking upstream (November 2016) 1-1 a mm�'-A Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP i Environmental Consuhants Site Photographs Annual Monitoring (Year 2) (19) View of cross-section XS2 looking upstream (June 2016) (20) View of cross-section XS2 looking upstream (November 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP-. . Environmental Consultants Site Photographs Annual Monitoring (Year 2) (21) View of cross-section XS3 (June 2016) t9' (22) View of cross-section XS3 (November 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP—. Environmental Consultants Site Photographs Annual Monitoring (Year 2) (23) View of cross-section XS4 looking upstream (June 2016) (24) View of cross-section XS4 looking upstream (November 2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP i Environmental Consuhants Site Photographs Annual Monitoring (Year 2) (25) View of log sill in restored stream (November 2016) W. r..a V * f xift ,•ti (26) View of bank scour areas stabilized with vegetation (November 2016) iz —®rlet 7 _ Lower Cape Fear Umbrella Mitigation Bank White Springs Tract LMG LAND MANAGEMENT GROUP ., Environmental Consuhan[s Site Photographs Annual Monitoring (Year 2) APPENDIX B. VEGETATIVE MONITORING DATA (2016) Lower Cape Fear Umbrella Mitigation Bank White Springs Tract Appendix B. Vegetation Data by Plot Year 2 (2016) Species Name Common Name Planted (P) Volunteer (V) r w a N w 0 M a Taxodium distichum bald cypress P 44 31 29 Pinus spp. unidentified pine V 4 2 Vaccinium corymbosum highbush blueberry V 1 5 30 Nyssa sylvatica black gum V 9 Lyonia lucida fetterbush V 11 18 18 Ilex glabra inkberry V 4 8 1 Ilex coriacea gallberry V 4 Morella cerifera wax myrtle V 6 1 Cyrilla racemiflora swamp titi V 9 5 8 Rhus copallinum winged sumac V 2 1 Persea borbonia red bay V 8 14 14 Gordonia lasianthus loblolly bay V 2 Itea virginica Virginia sweetspire V 3 2 Total Stems of Planted Species 44 31 29 Total Stems of Planted Species + Volunteer Species 85 106 73 BASELINE r N M 0 w 0 w 0 a a a 44 34 30 APPENDIX C. PALMER HYDROLOGIC DROUGHT INDEX MAPS Palmer Hydrological Drought Index January, 2016 WOW - .U4 - .94 +1.99 t2.99 +M d49Me Palmer Hydrological Drought Index February, 2016 -4-00 -3.p8 -2.M -1.99 4-00 +3.08 +4 DO and to to to to 10 and wpw -3.419 -2.94 +1.99 +7.99 +3.$9 " Palmer Hydrological Drought Indy March, 2016 -4.00 -3.9y9} -2.J* -1.99 +2.914 +3.4D +A.p9 aru to to to 10 to aM bg4w -3.99 -2.94 +1.99 +2.99 +3.99 a Palmer Hydrological Drought Index April, 2016 ---1 _� L i -4-00 -3.9(F -2.1)0 -1.99 +2.04 +3.4D ADD ares to to b to ane wfi>W -3.99 -2.94 +1.84 +299 +3294 a4m Palmer HydrologicaC Drought Index May, 2016 -440 -3.0a -2.eo —1.99 +2_W +3.09 W4 45 U Ia l0 16 8MM bei+ —3.99 —2.94 +1.99 +299 +3.99 a4(>we Palmer Hydrological Drought Index June, 2016 �F_qq -3-C4 -2.dJ9 -1.99 +2Ap +3.'09 +9.09 ard bo to ID to 10 ar —3.99 —2:94 +1.94 +2.99 +3.89 agp'cg Palmer Hydrological Drought Index July, 2016 -4-0a -5-9i► -2.CO -1.99 +-2.00 +3-00 +4 and ba z 1.5 10 b and tOrm -3.99 -2.99 +1.99 4-299 43.99 aw-N, Palmer Hydrological Drought Index August, 2016 -4-90 -3.00 -2.00 -199 +2-00 400 ADO to to 10 DO 10 and -3.9q -2.99 +1.99 +2-99 +3." atNm Palmer Hydrological Drought Indy September, 2016 M � = C_ 1 M M -4A4 -.co -2.40 -1.s4 .2.00 +3.40 +1 .40 00 16 15 w 10 to aqui -3.99 -2.94 +1.94 *2.99 +3.94 Palmer Hydrological Drought Index October, 2016 x+_00 -3-OD -2.{?¢ -t.�9 +204 w3.00 +a.00 -3.w 2." A.99 42es ah e Palmer Hydrological Drought Index November, 2016 M M L M r -4.00 -3.CA -2.W -1.99 *2.()17 +3.00 +4.0� W4 to to to LD b and Y -3.99 -2.94 +1.94 *2.99 +3.94 ChM Palmer Hydrological Drought Index December, 2016 I �4_Q70 -3.4 -2.u6 -1.99 *2_00 +3.DD ADD and to to- to to to ane W" -3.99 -2.94 +1.94 +299 +3.94 ahV4 APPENDIX D. NORTH CAROLINA DROUGHT STATUS MAPS North Carolina Division of Water Resources January 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 D1 10 D2 D3 D4 n North Carolina Division of Water Resources February 29, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 D1 10 D2 D3 D4 It n North Carolina Division of Water Resources March 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 Dl 10 D2 D3 D4 0 North Carolina Division of Water Resources April 30, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 D1 10 D2 D3 D4 91 n North Carolina Division of Water Resources May 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 Dl 10 D2 D3 D4 n North Carolina Division of Water Resources June 30, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 D1 10 D2 D3 D4 n North Carolina Division of Water Resources July 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 Dl 10 D2 D3 D4 n North Carolina Division of Water Resources August 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 Dl 10 D2 D' D4 0 North Carolina Division of Water Resources September 30, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 Dl 10 D2 D' D4 0 North Carolina Division of Water Resources October 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 D1 10 D2 D3 D4 n North Carolina Division of Water Resources November 30, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 Dl 10 D2 D3 D4 n North Carolina Division of Water Resources December 31, 2016 DWR Drought Image Percentile 100 90 80 70 60 50 40 30 DO 20 D1 1 D26- 0 D3 D4 n APPENDIX E. HYDROGRAPHS (2016) 90 day Precipitation Assessment 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 ■ . 1 — ■_ ■ ■_■ >a� "k "k raj, >Sat NSUN Raingauge 90 Day NSUN Total 30% 70% March 2016 LMGPrecipitaion Data Obtained from: Sunny Point - Station NSUN (www.nc-climate.ncsu.edu) F.MHN'T GROUP 30% and 70% precipitaion normals obtained from: WETS Station SOUTHPORT 5 N, 1971-2000 (wcc.nres.usda.gov) 30 28 26 24 22 20 18 16 2"a 14 12 10 8 6 4 2 0 -- ti`O ti`O ti 90 day Precipitation Assessment -- L -- —0 --- ti`O ti`O ti`O h; N" N ti� ti`O ti`O baa �aA NSUN Raingauge 90 Day NSUN Total 30% 70% June 2016 LMGPrecipitaion Data Obtained from: Sunny Point - Station NSUN (www.nc-climate.ncsu.edu) F.MHN'T GROUP 30% and 70% precipitaion normals obtained from: WETS Station SOUTHPORT 5 N, 1971-2000 (wcc.nres.usda.gov) 90 day Precipitation Assessment 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 ' 1 — ■—' — --- II — — ■ ■■ — 0 ti� ti� ti� ti� ti� ti� ti� 1 ti10 tido\ ��` ti�i�J` titi��` ti�i�J` hQJ¢o y�;QJ¢o y�Pp4o ao ti`'eQ NSUN Raingauge 90 Day NSUN Total 30% 70% September 2016 ti(0 C�' LMGPrecipitaion Data Obtained from: Sunny Point - Station NSUN (www.nc-climate.ncsu.edu) F.MHN'T GROUP 30% and 70% precipitaion normals obtained from: WETS Station SOUTHPORT 5 N, 1971-2000 (wcc.nres.usda.gov) December 2016 90 day Precipitation Assessment 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 ti`O ti`O ti`O ti`O ti`0 ti`O ti`O ti`O ti`O ti`O ti`0 ti`O ti`O ti`O ��: ��- ��: ��: of of do Vo o o �o y� ti ti �� ,�o 00 ti ti ti ti ti ti ti 3 NSUN Raingauge 90 Day NSUN Total 30% 70% LMGPrecipitaion Data Obtained from: Sunny Point - Station NSUN (www.nc-climate.ncsu.edu) F.MHN'T GROUP 30% and 70% precipitaion normals obtained from: WETS Station SOUTHPORT 5 N, 1971-2000 (wcc.nres.usda.gov) 12 6 0 March 2016 Hydrology Assessment tit, -36 -42 I ay 8 7 6 O s u 5 '= r- 0 O f6 4 Q 3 2 1 1 1 1 0 1111 1 111 _1_ - 0 ti( ti(0 ti� ti� ti� ti(0 ti� ti� ti� ti� ti� ti(0 >a� �a� �a� �a� ��•° ice•° ��a lea fat, `Sai `Sa` ��c Date IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge —Well 1 (14EKAB) --*–Well 2 (14EB5F7E) ®0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAND.MANAUMHN7GROUP Wells 1, 2 - Ecotone WM40 - January 1, 2016 to March 31, 2016 - One reading per day at 7:00 am 12 6 0 d -12 Me 36 Hydrology Assessment .. _ .._ .. .) 1.1 ti(0 �aJ NIP w 11 AVIV "o "orAVY do Date June 2016 9 8 7 6 VI t v 5 = C O 4 Q 3 2 1 IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge Well 1 (14EKIBB) —N --Well 2 (14EB5F7E) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 1, 2 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am 0 IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge Well 1 (14EKIBB) —N --Well 2 (14EB5F7E) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 1, 2 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am September 2016 Hydrology Assessment 12 9 6 8 0 7 Z �1 t v -6 6 d � > Cl � t v d -12 5QP = 3 O -18 4 Q L � v N i � a C -24 3 3 O L C7 -30 2 -36 1 �_ I■ _■ .�� _ �■ ■ I ■� I II I I _■II_ I 42 0 do do ti`O do ti`O o ti`O do do do do do do do Q�10 ti w by tiff ti� � tip' ti� ti� �: C�r Date MNSUN Raingauge --*--Well 1 (14E1C1BB) --m—Well 2 (14EB5F7E) —0" Ground Surface -12" Threshold Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 1, 2 - Ecotone WM40 - July 1, 2016 to September 30, 2016 - One reading per day at 7:00 am 12 6 0 December 2016 Hydrology Assessment 'a -24 C -30 -36 -42 ■ ■ - 9 8 7 6 Z d s v 5 C 4 Q 'v CJ L a 3 2 1 ■ I _ ■ ■1 I_I I ■�_ _I 0 ti�ti(0 �o� �o� �o� �o� O�c; OeC OeC oec: O�c: titi ti°� ti� �i y0 ti� 1•�` ,�ti Date MNSUN Raingauge Well 1 (14E1C1BB) —Well 2 (14EB5F7E) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 1, 2 - Ecotone WM40 - October 1, 2016 to December 31, 2016 - One reading per day at 7:00 am March 2016 Hydrology Assessment 12 9 6 8 0 7 6 ►E -30 4 Q 3 2 -36 1 -42 I I I ■■ I■ I - - - 0 'y�O 'y(0 y(0 'yrO ,yro 'y(0 'y�O 'yrO 'y(0 7rO 'y�O 7ro 'y�O NIP 'y ti ti `� titi sq tip" yti y� ti� Date MNSUN Raingauge --*--Well 3 (14EB15E1) +Well 4 (14EBB9C2) —at—Well 5 (14EB5F56) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 3, 4, 5 - Ecotone WM40 - January 1, 2016 to March 31, 2016 - One reading per day at 7:00 am June 2016 Hydrology Assessment 12 9 6 8 0 N s V C -6 v N J -12 M N M -18 7 6 -30 -36 -42 '■ _ ■■ _ ■■_ ■■ .I■� �'� �_' ti� ti� ti1b til ti� IV PQM PQM .P�t, .P�i, .PQM �aJ baa �a� 40o� �i� ,y4� Date 4 a 3 2 1 V d L CL MNSUN Raingauge --*--Well 3 (14EB15E1) tWell 4 (14EBB9C2) —*—Well 5 (14EB5F56) 0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAN D.MANMI EMHNTGROUP ir. Wells 3, 4, 5 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am I_I _. ■ 0 ,y1' tib` V d L CL MNSUN Raingauge --*--Well 3 (14EB15E1) tWell 4 (14EBB9C2) —*—Well 5 (14EB5F56) 0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAN D.MANMI EMHNTGROUP ir. Wells 3, 4, 5 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am September 2016 Hydrology Assessment 12 9 6 8 0 7 Z O t v -6 6 d � > Cl � t v d -12 5 = O JT -18 4 Q L 3 v N i � a C -24 3 3 O L C7 -30 2 -36 1 �_ I■ _■ .�� _ �■ ■ I ■� I II I I _■II_ I 42 0 ;y�O ,ti`O ti`O ti`O ti`O `O ti`O '10 ti`O ti`O ti`O ti`O ,'yrO ti`O ti w by tiff ti� y tip' ti� ti� �: 4 Date MNSUN Raingauge --*--Well 3 (14EB15E1) tWell 4 (14EBB9C2) --Well 5 (14EB5F56) 0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 3, 4, 5 - Ecotone WM40 - July 1, 2016 to September 30, 2016 - One reading per day at 7:00 am Hydrology Assessment 12 6 0 -30 December 2016 9 8 7 6 1A d s V 5 4 Q 3 PA -36 1 -42 IN _I I I _ a .1 I I I . I I .._ _I . p ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`0 Gc G+c: G� G� OJ OJ OJ OJ r eC: eC: eC eC y,0 �A �, 0 �A IV yti� y�� ,,�0 N5Y 0 Date 1111111111111111111111111INSUN Raingauge --*--Well 3 (14EB15E1) tWell 4 (14EBB9C2) —Well 5 (14EB5F56) 0" Ground Surface -12" Threshold Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 3, 4, 5 - Ecotone WM40 - October 1, 2016 to December 31, 2016 - One reading per day at 7:00 am 12 6 0 March 2016 Hydrology Assessment 9 8 7 6 -12 _ -24 3 O /L^ V El 4 Q 3 -36 1 -42 I I 1 ■■ I■ I ISI - 0 ti`O ti`O ti`O ti`O N10 ti`O ti`O ti`O ti`O ti`O ti`O ti`O ti`O R% V ti, ti� by Date IIIIIIIIIIIIIIIIIIINSUN Raingauge --d— Well 6 (14E 13334E) --*—Well 7 (14EB1637) —Well 8 (14EB7E88) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAN D.MA NMI EMHN7 G&OU V ir. Wells 6, 7, 8 - Ecotone WM40 - January 1, 2016 to March 31, 2016 - One reading per day at 7:00 am June 2016 Hydrology Assessment 12 9 6 8 0 V) d s v C -6 v d J -12 7 6 -30 -36 -42 1■ _ ■■ ■■_ ■■ .I■� �I� ��I ti10 Phi Pit Phi Pit P�j, �a� �a� baa ,yI; ,L� Date 4 Q 3 2 1 MNSUN Raingauge Well 6 (14EB334E) --*—Well 7 (14EB1637) —*—Well 8 (14EB7E88) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) 1.AND.M A NMEMHH7 GROUP ir. Wells 6, 7, 8 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am ISI _■ ■ 0 MNSUN Raingauge Well 6 (14EB334E) --*—Well 7 (14EB1637) —*—Well 8 (14EB7E88) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) 1.AND.M A NMEMHH7 GROUP ir. Wells 6, 7, 8 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am September 2016 Hydrology Assessment 12 9 6 8 0 7 I �1 t v -6 6 d 1 > CJ W _ v y -12 s = C O -18 4 L L 3 v � a C -24 3 3 O /L^ V -30 2 -36 1 �_ I■ _■ .�� _ �■ ■ I ■� I II I I _■I'_ I 42 0 ti`O ti10 ti10 ti10 Date MNSUN Raingauge --0-- Well 6 (14EB334E) Well 7 (14EB1637) --Well 8 (14EB7E88) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 6, 7, 8 - Ecotone WM40 - July 1, 2016 to September 30, 2016 - One reading per day at 7:00 am 12 6 December 2016 Hydrology Assessment C -24 30 -36 9 8 7 6 tA d s v 5 C 4 Q 3 PA -42 ■ _ ■ _ ■ ■ _ ■ _ _ 0 ti(0 ti� ti� ti� ti(0 ti� ti� ti� ti� ti� ti� ti� ti� ti(0 04 O O O- p�� peg peg peg peg Date MNSUN Raingauge Well 6 (14EB334E) --*—Well 7 (14EB1637) —+—Well 8 (14EB7E88) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) 1.AND.M A NMEMHH7 GROUP Wells 6, 7, 8 - Ecotone WM40 -.October 1, 2016 to December 31, 2016 - One reading per day at 7:00 am Well 9 Malfunction: Data Gap 1/5 to 3/15 12 6 0 d s U C -6 d d J March 2016 Hydrology Assessment d -18 L 3 H C -24 3 O /L^ V -30 -36 -42 9 8 7 6 d U u 5 C O c0 4 Q �V N L a 3 2 1 0 ti`° ,ti`° ti`0 ,ti`° ti`° ti`° ti`O ti`° ti`° ti`° ti`° ti`° fat bac ti ti ti `� titi ti� ti� � titi tiw tiff Date IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge Well 9 (14EB7F06) +Well 10 (14EB95B4) Well 11 (14EBC2B0) —0" Ground Surface -12" Threshold Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGe�vo'M. Wells 9, 10, 11 - Ecotone WM40 - January 1, 2016 to March 31, 2016 - One reading per day at 7:00 am Well 10 Malfunction: Data Gap 6/9 to 9/6 Hydrology Assessment June 2016 12 9 6 8 0 A.7 I d s v -6 6 v 7 > CJ -12 5 = 3 O -18 4 Q L � a C -24 3 3 O /L^ V -30 2 -36 1 -42 1■ _ ■ _ ■ _ . �I %10 0 ti( ti� Phi P�� Pit Pit P�j, eA �aA baa J�, ti' ,yh titi ti°' ti'' ,yp ,L1, 3 do -IN',tion Date IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge Well 9 (14EB7FOB) Well 10 (14EB95B4) Well 11 (14EBC2BO) —0" Ground Surface -12" Threshold Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGe�vo'M. Wells 9, 10, 11 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am Well 10 Malfunction: Data Gap 6/9 to 9/6 Hydrology Assessment September 2016 12 9 6 8 0 7 I �1 .i v -6 6 d � > CJ v y -12 5E C O -18 - 4:t L 3 v � a C -24 3 3 O C7 -30 2 -36 1 �_ I■ _■ .�■ ■ I ■� II I I _■I'_ I 42 0 .ti`O ti`O ti`O ti`O ti`O .ti`O '10 '10 ti`O ti`O ti`O ti`O .ti`O ti`O C�r Date IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge --*--Well 9 (14EB7FOB) tWell 10 (14EB95B4) Well 11 (14EBC2BO) —0" Ground Surface -12" Threshold Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGe�vo'M. Wells 9, 10, 11 - Ecotone WM40 - July 1, 2016 to September 30, 2016 - One reading per day at 7:00 am December 2016 Hydrology Assessment 12 9 6 8 0 7 d s v -6 6 d tA > CJ � s v -12 5 O -18 - 4 Q L � a 'a -24 3 C 3 O /L^ V -30 - - 2 -36 1 -42 '■ _� ■ _ ■ ■ I_I I ■�_ _I 0 ti� ti� ti� ti10 O4� O°� O�� 0, O�� °J °J °J °J p�� peg peg p�� peg Date IIIIIIIIIIIIIIIIIIIINSUN Raingauge Well 9 (14EB7FOB) +Well 10 (14EB95B4) Well 11 (14EBC2BO) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Wells 9, 10, 11 - Ecotone WM40 - October 1, 2016 to December 31, 2016 - One reading per day at 7:00 am March 2016 Hydrology Assessment 12 9 6 8 0 -30 -36 -42 I ay 7 6 4A N s v 5 = r- 0 O t0 4 7M 3 011 1 ■■ 1101 1 111 -1- - 0 y� y� y( y(0 y� y(0 y� ,y�o y� y� y� y(0 ti ti ti `� titi ti°' ti`O" � titi ti� tih Date MNSUN Raingauge --O--Ref 1 (EBDDCDF) --N—Ref 2 (9DE68CC) —f—Ref 3 (EBD36B8) —0" Ground Surface -12" Threshold U d L CL 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGeGUp Reference Wells 1, 2, 3 - Ecotone WM20 - January 1, 2016 to March 31, 2016 - One reading per day at 7:00 am June 2016 Hydrology Assessment 12 9 6 8 0 V) d s v C -6 v d J -12 7 6 4 Q -30 -36 -42 1■ _ ■■ ■�_ �■ ■I �� I� ��I ti`° Pit Pit Pit Pit' Pit' ell baa baa AVIV It v ti'' If AIV 3 do Date 3 2 1 MNSUN Raingauge Ref 1 (EBDDCDF) --w-Ref 2 (9DE68CC) -*-Ref 3 (EBD36B8) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) 3.AND.M F NA6EMHN7 GROUP ir. Reference Wells 1, 2, 3 - Ecotone WM20 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am ISI _■ 0 y,�.�Jt` MNSUN Raingauge Ref 1 (EBDDCDF) --w-Ref 2 (9DE68CC) -*-Ref 3 (EBD36B8) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) 3.AND.M F NA6EMHN7 GROUP ir. Reference Wells 1, 2, 3 - Ecotone WM20 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am September 2016 Hydrology Assessment 12 9 6 8 0 7 I �1 .i v -6 6 d � > CJ v y -12 5 = C O -18 4 L L 3 v � a C -24 3 3 O /L^ V -30 2 -36 1 �_ I■ _■ .�� _ �■ ■ I ■� I II I ' _■II_ I 42 0 ti`O ti`O ti`O ti`O ti`O ,ti`Oti`O ti`O ,ti`O ti`O ti`O ti`O ti`O el Illy do do �: o tip' ti3 ,,p Date MNSUN Raingauge --*--Ref 1 (EBDDCDF) --*--Ref 2 (9DE68CC) —*—Ref 3 (EBD36B8) —0" Ground Surface -12" Threshold LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAN D.M A NMI EMHN7 GROUP ix. Reference Wells 1, 2, 3 - Ecotone WM20 - July 1, 2016 to September 30, 2016 - One reading per day at 7:00 am 12 6 0 C -24 30 -36 Hydrology Assessment December 2016 9 8 7 6 tA d s v 5 C 4 Q 3 ■ -42 ■ _ ■ _ ■ ■ ■ _ _ 0 ti(0 ti� ti� ti� ti(0 ti� ti� ti� ti� ti(0 ti� ti� ti� ti(0 0'+v �a` �04 BOJ OV �0V O�c; OeC OAC OeC OeC c� -y ,tiro Date MNSUN Raingauge Ref 1 (EBDDCDF) --w-Ref 2 (9DE68CC) --Ref 3 (EBD36B8) —0" Ground Surface -12" Threshold 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGeGUp Reference Wells 1, 2, 3 - Ecotone WM20 - October 1, 2016 to December 31, 2016 - One reading per day at 7:00 am 12 6 0 March 2016 Hydrology Assessment tit, -36 -42 I I ti ti� ti� ti� ti� ti� ti� ti� ti ,ate�Ce`p `a ac/ ai ai Date 111111111111111111111111INSUN Raingauge --*--Well SG1 (14EB7E85) --*--Well SG2 (14EBC215) —0" Top of Bank 9 8 7 6 v t U 5 C O M 4 Q 3 2 1 0 at'y LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAND.MANAUMHN7GROUP Stream Gauges 1 and 2 - Ecotone WM40 - January 1, 2016 to March 31, 2016 - One reading per day at 7:00 am Hydrology Assessment 12 6 0 June 2016 -12 O -18 El 36 -42 ' • ti(0 ti _ ■■ � ■�_ ■■ �I �� I� ISI ,yro y� tiro ti� tirO N10,yro yro yro Pit P�� Pit baa a baa ,� > > ,yh ,1ti ,y�i ro ti3 ,Lp AVIV Al 8 7 6 Ln Q) s u 5 4 Q 3 2 1 Date IIIIIIIIIIIIIIIIIIINSUN Raingauge —Well SG1 (14EB7E85) —a—Well SG2 (14EBC215) —0" Top of Bank LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAND.M A NAUMHN7 GROUP a.. Stream Gauges 1 and 2 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am I_1 -■ I ■ 0 ti( ti(0 >P Date IIIIIIIIIIIIIIIIIIINSUN Raingauge —Well SG1 (14EB7E85) —a—Well SG2 (14EBC215) —0" Top of Bank LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAND.M A NAUMHN7 GROUP a.. Stream Gauges 1 and 2 - Ecotone WM40 - April 1, 2016 to June 30, 2016 - One reading per day at 7:00 am 12 6 0 t/f �1 .i v __ -6 d O y -12 September 2016 Hydrology Assessment -30 -36 -42 10 9 8 7 6 d t v 5 = C O ro 4 Q 'v O L a 3 2 1 0 ti� ti� ti� ti� ti`O ti`O ti� ti`O ti`O ti`O ti� ti� ti� �J�Ne Date MNSUN Raingauge --*--Well SG1 (14EB7E85) --*--Well SG2 (14EBC215) —0" Top of Bank Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Stream Gauges 1 and 2 - Ecotone WM40 - July 1, 2016 to September 30, 2016 - One reading per day at 7:00 am 12 6 0 December 2016 Hydrology Assessment 'a -24 C -30 -36 -42 1 ■ _ (0 ti N10 9 8 7 6 Z d s v 5 C 4 Q 'v CJ L a 3 2 1 ti(0 ti� ti� ti� ti� ti� ti� ti� ti� ti� ti(0 C'� L't J J J 0 10 � �o �o �o �o tip' 11�y Date MNSUN Raingauge -Well SG1 (14EB7E85) --w-Well SG2 (14EBC215) —0" Top of Bank 4Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LMGQcUo. Stream Gauges 1 and 2 - Ecotone WM40 - October 1, 2016 to December 31, 2016 - One reading per day at 7:00 am 12 6 March 2016 Hydrology Assessment AP 18 111111 IIIIIIIIIIIIIIIIIIIIIN 24 .I..IIII ........ 0000000 OO OO00000000Ooa000000000OOOO00000000OO0000°00000 III 4 -Feb -16 5 -Feb -16 6 -Feb -16 7 -Feb -16 8 -Feb -16 Date IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge --*--Well SG1 (14EB7E85) —a—Well SG2 (14EBC215) 0" Top of Bank 1 LM�x Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) ANDMANA13111HN76RCIP- Stream Gauges 1 and 2 - Ecotone WM40 - February 4, 2016 to February 8, 2016 - One reading per hour 24 18 Hydrology Assessment September 2016 2 &P -6 12 0p �, �1 �� 0, �1 �1 �� (P 0� 4p 4p �1 �, �� 0, �1 �, �� 0P (P �P �, (P �, 0, 0P o. N. % ,�,L. ��. moo. o. N. b. tiy. ��. moo. o. N. %. yy. ��. moo. ). N. %. tiy. 1�. moo. o. N. b. yy. 1�. §S- 31 -Aug -16 1 -Sep -16 2 -Sep -16 Date 3 -Sep -16 IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge Well SG1 (14EB7E85) —a—Well SG2 (14EBC215) 0" Top of Bank 4 -Sep -16 N LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAND.MANAUMHN7GROUP Stream Gauges 1 and 2 - Ecotone WM40 - August 31, 2016 to September 4, 2016 - One reading per hour Hydrology Assessment 24 18 AP -6 12 i OIZIIZI 0- 4i' 11, * ,y�o. 'ZIP,LO''ZIP O'ZIP 011§11 Ri' ,yl•. ,y�o If,* 41",O' 0�' 'b 11, 1 -yS* ,LO 0 0 0 0 0 0 0 0 5 -Oct -16 6 -Oct -16 7 -Oct -16 8 -Oct -16 Date IIIIIIIIIIIIIIIIIIIIIIIIIINSUN Raingauge Well SG1 (14EB7E85) --m—Well SG2 (14EBC215) —0" Top of Bank October 2016 2 0 0 00 00 00 9 -Oct -16 LMG Lower Cape Fear Umbrella Mitigation Bank at White Springs (01-13-038a) LAND.MANAUMHN7GROUP Stream Gauges 1 and 2 - Ecotone WM40 - October 5, 2016 to October 9, 2016 - One reading per hour APPENDIX F. STREAM MORPHOLOGICAL DATA White Springs Longitudinal Profile - Year 2 gybed • bankfull o x -section 0 200 400 600 800 1000 1200 Channel Distance (ft) White Springs Longitudinal Profile - Baseline --m-- bed • bankfull o x -section 0 200 400 600 800 1000 1200 Channel Distance (ft) 35 34 33 32 31 30 29 28 27 35 34 33 32 31 30 29 28 White Springs Longitudinal Profile - Year 2 (Sta 0+00 to 0+200) --m--bed • bankfull o x -section 0 20 40 60 80 100 120 140 160 180 Channel Distance (ft) White Springs Longitudinal Profile - Baseline (Sta 0+00 to 0+200) {bed • bankfull o x -section 34.5 34 33.5 33 32.5 32 200 0 20 40 60 80 100 120 140 160 180 Channel Distance (ft) 34.5 34 33.5 33 32.5 32 200 White Springs Longitudinal Profile - Year 2 (Sta 0+200 to 0+400) {bed • bankfull o x -section 200 220 240 260 280 300 320 340 360 380 Channel Distance (ft) White Springs Longitudinal Profile - Baseline (Sta 0+200 to 0+400) —m-- bed • bankfull 0 x -section 34.5 34 33.5 33 32.5 32 31.5 400 200 220 240 260 280 300 320 340 360 380 Channel Distance (ft) 34.5 34 33.5 33 32.5 32 31.5 400 White Springs Longitudinal Profile - Year 2 (Sta 0+400 to 0+600) --m— bed • bankfull o x -section 400 420 440 460 480 500 520 540 560 580 Channel Distance (ft) White Springs Longitudinal Profile - Baseline (Sta 0+400 to 0+600) --m—bed • bankfull o x -section 34 33.5 33 32.5 32 31.5 31 600 400 420 440 460 480 500 520 540 560 580 Channel Distance (ft) 34 33.5 33 32.5 32 31.5 31 600 White Springs Longitudinal Profile - Year 2 (Sta 0+600 to 0+800) {bed • bankfull o x -section 600 620 640 660 680 700 720 740 760 780 Channel Distance (ft) White Springs Longitudinal Profile - Baseline (Sta 0+600 to 0+800) --m-- bed • bankfull o x -section 34 33.5 33 32.5 32 31.5 31 800 600 620 640 660 680 700 720 740 760 780 Channel Distance (ft) 34 33.5 33 32.5 32 31.5 31 800 White Springs Longitudinal Profile - Year 2 (Sta 0+800 to 0+1000) --m— bed • bankfull o x -section �• • A f 0 m a� m 33 32.5 32 31.5 31 30.5 30 29.5 29 28.5 800 820 840 860 880 900 920 940 960 980 1000 Channel Distance (ft) White Springs Longitudinal Profile - Baseline (Sta 0+800 to 0+1000) --w–bed • bankfull o x -section 800 820 840 860 880 900 920 940 960 980 Channel Distance (ft) 33 32.5 32 31.5 31 30.5 30 1000 White Springs Longitudinal Profile - Year 2 (Sta 0+1000 to 0+1315) f bed • bankfull o x -section 1000 1050 1100 1150 1200 1250 1300 Channel Distance (ft) w White Springs Longitudinal Profile - Baseline (Sta 0+1000 to 0+1317) —m --bed • bankfull o x -section 32 31.5 31 30.5 30 29.5 29 28.5 28 27.5 27 1350 32 31.5 31 30.5 30 _ 29.5 29 28.5 28 1000 1050 1100 1150 1200 1250 1300 1350 Channel Distance (ft) • D I 32 31.5 31 30.5 30 _ 29.5 29 28.5 28 1000 1050 1100 1150 1200 1250 1300 1350 Channel Distance (ft) 37 36 35 C 34 w 33 32 31 XS1 Pool -Year 2 Ground Year 2 Bankfull Baseline Ground 0 2 4 6 8 10 12 14 16 18 Year 2 Bankfull elevation (ft) 33.63 Pool width, Wbkfp (ft) 8.8 Pool cross-section area, Abd (sq ft) 5.6 Mean pool depth, dbkfp (ft) 0.6 Max pool depth, dmbkfp (ft) 1.2 Width (ft) Baseline Bankfull elevation (ft) 33.77 Pool width, Wbkr (ft) 10.5 Pool cross-section area, Abkfp (sq ft) 6.7 Mean pool depth, dbkfp (ft) 0.6 Max pool depth, dmblf'p (ft) 1.3 37 36 35 34 C 0 33 w 32 31 30 XS2 Riffle —Year 2 Ground Year 2 Bankfull Baseline Ground 0 2 4 6 8 10 12 14 16 Width (ft) Year 2 Width flood -prone area, Wfpa (ft) 111.5 Bankfull elevation (ft) 33.14 Riffle width, Wbkf (ft) 9.3 Entrenchment ratio, ER [Wfpa/Wbkf] 12.0 Riffle cross-section area, Abkf (sq ft) 6.5 Mean riffle depth, dbkf (ft) 0.7 Width -to -depth ratio, [Wbkf/dbkf] 13.3 Max riffle depth, dmbkf (ft) 1.7 Max riffle depth ratio, [dmbkf/dbkf] 2.4 Bankfull wetted perimeter, P (ft) 10.7 Low bank height, LBH (ft) 1.7 Low bank height ratio, BHR [LBH/dmbkf] 1.01 Baseline Width flood -prone area, Wfpa (ft) 104.1 Bankfull elevation (ft) 33.21 Riffle width, Wbkf (ft) 9.2 Entrenchment ratio, ER [Wfpa/Wbkf] 11.4 Riffle cross-section area, Abkf (sq ft) 5.5 Mean riffle depth, dbkf (ft) 0.6 Width -to -depth ratio, [Wbkddbkf] 15.3 Max riffle depth, dmbkf (ft) 1.3 Max riffle depth ratio, [dmbkf/dbkf] 2.2 Bankfull wetted perimeter, P (ft) 9.6 Low bank height, LBH (ft) 1.3 Low bank height ratio, BHR [LBH/dmbkf] 1.00 37 36 35 34 C 33 cc w 32 31 30 XS3 Riffle - -Year 2 Ground Year 2 Bankfull Baseline Ground 0 2 4 6 8 10 12 14 16 Width (ft) Year 2 Width flood -prone area, Wfpa (ft) 94.3 Bankfull elevation (ft) 32.19 Riffle width, Wbkf (ft) 10.3 Entrenchment ratio, ER [Wfpa/Wbkf] 9.2 Riffle cross-section area, Abkf (sq ft) 7.0 Mean riffle depth, dbkf (ft) 0.7 Width -to -depth ratio, [Wbkddbkf] 14.7 Max riffle depth, dmbkf (ft) 1.4 Max riffle depth ratio, [dmbkf/dbkf] 2.0 Bankfull wetted perimeter, P (ft) 11.6 Low bank height, LBH (ft) 1.4 Low bank height ratio, BHR [LBH/dmbkf] 1.02 Baseline Width flood -prone area, Wfpa (ft) 94.6 Bankfull elevation (ft) 32.36 Riffle width, Wbkf (ft) 9.90 Entrenchment ratio, ER [Wfpa/Wbkf] 9.6 Riffle cross-section area, Abkf (sq ft) 7.0 Mean riffle depth, dbkf (ft) 0.7 Width -to -depth ratio, [Wbkf/dbkf] 14.0 Max riffle depth, dmbkf (ft) 1.2 Max riffle depth ratio, [dmbkf/dbkf] 1.7 Bankfull wetted perimeter, P (ft) 10.3 Low bank height, LBH (ft) 1.2 Low bank height ratio, BHR [LBH/dmbkf] 1.00 33 32.5 32 31.5 c 31 0 X30.5 m ED 30 29.5 29 28.5 XS4 Pool —Year 2 Ground Year 2 Bankfull Baseline Ground 0 2 4 6 8 10 12 14 16 18 Year 2 Bankfull elevation (ft) 29.88 Pool width, Wbkfp (ft) 9.3 Pool cross-section area, Abd (sq ft) 4.8 Mean pool depth, dbkfp (ft) 0.5 Max pool depth, dmbkfp (ft) 0.9 Width (ft) Baseline Bankfull elevation (ft) 29.82 Pool width, Wbkfr (ft) 8.5 Pool cross-section area, Abkfp (sq ft) 5.5 Mean pool depth, dbkfp (ft) 0.6 Max pool depth, dmblf'p (ft) 1.3 Dimensional Morphology Summary (Dimensional Parameters - Cross Section) Lower Cape Fear Umbrella Mitigation Bank - White Springs Tract Year 02 Monitoring Pool Dimensions Dimension based on current bankfull elevation Cross Section 1 (Pool) Cross Section 4 (Pool) B.s7 MY1 MY2 MY3 MY4 MYS MY+ Base MY1 MY2 MY3 MY4 MYS MY+ Pool Width (ft) 10.5 9.8 8.8 8.5 9.1 9.3 Pool Cross Sectional Area (ft z) 6.7 7.2 5.6 5.5 4.5 4.8 Mean Pool Depth (ft) 0.6 0.7 0.6 0.6 0.5 0.5 Max Pool Depth (ft) 1.3 2.0 1.2 1.3 1.0 0.9 Riffle Dimensions Dimension based on current bankfull elevation Cross Section 2 (Riffle) Cross Section 3 (Riffle) Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Bankfull width (ft) 9.2 11.1 9.3 9.9 10.8 10.3 Floodprone width (ft) 104.1 110.2 111.5 94.6 92.6 94.3 Bankfull mean depth (ft) 0.6 0.7 0.7 0.7 0.7 0.7 Bankfull max depth (ft) 1.3 1.7 1.7 1.2 1.3 1.4 Bankfull Cross Sectional Area (ft 2) 5.5 7.8 6.5 7.0 7.2 7.0 Width/Depth Ratio 15.3 15.9 13.3 14.0 16.3 14.7 Entrenchment Ratio 11.4 9.9 12.0 9.6 8.6 9.2 Bank Height Ratio 1.0 1.0 i 1.0 1.0 1.0 1.0 Stream Survey Data Summary Lower Cape Fear Umbrella Mitigation Bank - White Springs Tract Year 02 Monitoring Parameter Baseline MY-1 MY-2 MY- 3 MY- 4 MY- 5 Dimension - Riffle only Min Mean Max Min Mean Max Min Mean Max Min Mean Max Min Mean Max Min Mean Max Rosgen Classification C5 C5 C5 Bankfull Width (ft) 9.2 9.6 9.9 10.8 11.0 11.1 9.3 9.8 10.3 Floodprone Width (ft) 94.6 99.4 104.1 92.6 101.4 110.2 94.3 102.9 111.5 Bankfull Mean Depth (ft) 0.6 0.65 0.7 0.7 0.7 0.7 0.7 0.7 0.7 Bankfull Max Depth (ft) 1.2 1.25 1.3 1.3 1.5 1.7 1.4 1.6 1.7 Bankfull Cross Sectional Area (ft2) 5.5 6.3 7.0 7.2 7.5 7.8 6.5 6.8 7.0 Width/Depth Ratio 14.0 14.7 15.3 15.9 16.1 16.3 13.3 14.0 14.7 Entrenchment Ratio 9.6 10.5 11.4 8.6 9.3 9.9 9.2 10.6 12.0 Bank Height Ratio 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Profile Min Median Max Min Median Max Min Median Max Min Median Max Min Median Max Min Median Max Valley Slope (ft/ft) 0.0032 0.0036 0.0036 Average Water Surface Slope (ft/ft) 0.0027 0.0029 0.0029 Riffle Length (ft) 13.7 16.4 17.1 6.1 15.0 21.8 6.8 15.8 22.6 Riffle Length Ratio 1.4 1.7 1.8 0.6 1.4 2.0 0.7 1.6 2.3 Pool Length (ft) 16.6 16.8 27.5 11.0 16.6 25.9 11.3 21.4 25.8 Pool Length Ratio 1.7 1.8 2.9 1.0 1.5 2.4 1.2 2.2 2.6 Pool - Pool Spacing (ft) 29.1 36.2 44.1 29.1 37.7 44.7 28.4 34.5 52.2 Pool-Pool Spacing Ratio 3.1 1 3.8 1 4.6 1 2.6 1 3.4 1 4.1 1 2.9 1 3.5 1 5.3 APPENDIX G. OHWM INDICATORS IN STREAM VALLEY *A 4 (1) View of OHWM along restored stream in June 2016 (2) View of OHWM along restored stream in June 2016 White Springs Tract LCFUMB Year 2 AMR LMG LAND MANAGEMENT GROUP r r: enwranme�ml co.�.vlrunr� OHWM INDICATORS 1 - Natural line impressed on bank 2 - Presence of litter & debris 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events OHWM INDICATORS 1 - Natural Line Impressed On Bank 2 - Vegetation matted, bent, Or absent 3 - Water Staining 4 - Multiple Observed Flow Events Appendix G: OHWM Indicators in Stream Valley y1 7 (1) View of OHWM along restored stream in June 2016 (2) View of OHWM along restored stream in June 2016 White Springs Tract LCFUMB Year 2 AMR LMGLAND MANAGEM EHlGROUP EnvV�anmenm7 Cansu7tan is OHWM INDICATORS 1 - Natural line impressed on bank 2 - Presence of litter & debris 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events OHWM INDICATORS 1 - Natural Line Impressed On Bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple Observed flow events Appendix G: OHWM Indicators in Stream Valley (1) View of OHWM along restored stream in June 2016 .�! r .� rx -V: NA (2) View of OHWM along restored stream in June 2016 White Springs Tract LCFUMB Year 2 AMR LMGLAND MANAGEM EHl' GROUP EnvV�anmen 1u0 Can,u71- OHWM INDICATORS 1 - Natural line impressed on bank 2 - Water staining 3 - Change in plant community 4 - Multiple observed flow events OHWM INDICATORS 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events Appendix G: OHWM Indicators in Stream Valley (1) View of OHWM along restored stream in June 2016 1r, J. x' f2 (2) View of OHWM along restored stream in June 2016 White Springs Tract LCFUMB Year 2 AMR LMGLANDMANAGEMEHl'GROUP" EnvV�anmenm7 Cansu7tan is OHWM INDICATORS 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events OHWM INDICATORS 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events 6 - Scour Appendix G: OHWM Indicators in Stream Valley (1) View of OHWM along restored stream in June 2016 , -Opt- (2) - (2) View of OHWM along restored stream in June 2016 White Springs Tract LCFUMB Year 2 AMR LMGLAND MANAGEM EHlGROUP EnvV�anmenm7 Cansu7tan is OHWM INDICATORS 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events OHWM INDICATORS 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events 6 - Deposition Appendix G: OHWM Indicators in Stream Valley (1) View of OHWM along restored stream in June 2016 F51 (2) View of OHWM along restored stream in September 2016 White Springs Tract LCFUMB Year 2 AMR LMGLAND MANAGEM EHlGROUP EnvV�anmenm7 Cansu7tan is M 0 UiTl M 1101171 �G�_ti]_C . 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events 6 - Deposition OHWM INDICATORS 1 - Natural line impressed on bank 2 - Vegetation matted, bent, or absent 3 - Water staining 4 - Change in plant community 5 - Multiple observed flow events 6 - Scour Appendix G: OHWM Indicators in Stream Valley