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9204_Wake_Sorrell_MSWLF_GW_FID1286620_20190319
pENR USE ONLY ❑Paper Report [:]Electronic Data - Email CD (data loaded: Yes / No Doc/Event #: C DENR Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: • Prepare one form for each individually monitored unit. • Please type or print legibly. • Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). • Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. • Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). • Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): S&ME, Inc. (consultant) Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Sam Watts Phone: (919) 872-2660 E-mail: swatts@smeinc.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006) Sorrells Landfill SR 1303 (near 8000 Smith Road) E2-04 .1600 October 9, 2018 Apex, NC 27539 Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring ❑ Detection Monitoring ® Assessment Monitoring ❑ Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells ❑ Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data Surface water monitoring data ❑ Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. x Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. ❑ Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Samuel P. Watts, P.G. Project Manager / S&ME, Inc. Facility Repre entati me (P nt) Title �3 / /,9 Signature Date 3201 Spring Forest Road, Raleigh, NC 27616 Facility Representative Address F-0176 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 (919)872-2660 (Area Code) Telephone Number Affix NC Licensed/ Professional Geologist Seal =0 March 14, 2019 NCDEQ — DWM, Solid Waste Section 1646 Mail Service Center Raleigh, NC 27699 Attention: Ms. Jaclynne Drummond Reference: April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 Dear Ms. Drummond: via email: jaclynne.drummond@ncdenr.gov S&ME is pleased to submit this report documenting the October 2018 semiannual groundwater/surface water sampling conducted at Sorrell Landfill. This report is provided as a portable document file (PDF) and includes the laboratory data as an excel file following the Solid Waste Section's electronic data deliverable (EDD) template. Our services were performed in general accordance with S&ME Proposal No. P4258-07V, dated April 25, 2007, and S&ME's letter Cost Estimate for 2017 Semiannual Groundwater and Surface Water Sampling Events, dated March 16, 2017. S&ME appreciates the opportunity to provide our services on this project. Please contact us if you have any questions regarding this report, or if we may be of further assistance. Sincerely, S&ME, Inc. 0111� 6bt�_ Ashley Bents, P.W.S. Samuel P. Watts, P.G. Natural Resources Professional Senior Project Manager abentz@smeinc.com swatts@smeinc.com Cc: James Easthom Oeasthom@kennoncraver.com) Eddie Sorrell (esorreII1955@nc.rr.com) S&ME, Inc. 13201 Spring Forest Road I Raleigh, NC 27616 1 p 919.872.2660 1 www.smeinc.com s October 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina s S&ME Project No. 1054-07-251 I Table of Contents ♦ EXECUTIVE SUMMARY................................................................................................1 1.0 Introduction.......................................................................................................................3 1.1 Background................................................................................. Error! Bookmark not defined. 2.0 General Physiography......................................................................................................4 2.1 Site Topography.............................................................................................................................4 2.2 Regional Geology...........................................................................................................................4 2.3 Site Geology and Hydrogeology.................................................................................................. 5 2.4 Groundwater Table........................................................................................................................ 5 2.5 Hydraulic Gradient and Groundwater Flow Velocity Calculations ....................................... 6 HydraulicGradient....................................................................................................................................................6 GroundwaterFlow Velocity.......................................................................................................................................7 2.6 Surface Water..................................................................................................................................8 3.0 Sampling Program............................................................................................................8 4.0 Field Parameters................................................................................................................9 4.1 Specific Conductivity.....................................................................................................................9 4.2 pH..................................................................................................................................................... 9 4.3 Temperature..................................................................................................................................10 4.4 Turbidity........................................................................................................................................10 5.0 Analytical Results...........................................................................................................10 5.1 Groundwater.................................................................................................................................11 5.2 Surface Water................................................................................................................................11 6.0 Quality Control Samples...............................................................................................12 7.0 Statistical Analysis..........................................................................................................12 8.0 Summary...........................................................................................................................12 8.1 Groundwater Results...................................................................................................................13 8.2 Surface Water Samples................................................................................................................13 9.0 Recommendations...........................................................................................................13 Appendices Appendix I — Figures Appendix II — Tables Appendix III — Laboratory Reports Appendix IV — Hydraulic Gradient/ Groundwater Flow Velocity Calculations March 13, 2019 ii April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 EXECUTIVE SUMMARY S&ME, Inc. (S&ME) was contracted by the Sorrell Grading Company and The Estate of Mr. Clyde E. Sorrell, Senior, (Sorrell) to provide semi-annual groundwater and surface water monitoring services at Sorrell Landfill located off of Smith Road (S.R 1303) near Apex, North Carolina. This monitoring event was performed on October 19, 2018. These services were performed in general accordance with the Water Quality Monitoring Plan (WQMP) prepared in June 1996 by Trigon Engineering Consultants, Inc. as modified by the request for additional sampling locations made by representatives of NCDEQ-DWM, and NCDEQ's Water Quality Monitoring Requirements Letter, dated April 29, 2003. The landfill is currently in an assessment monitoring program because of the detection of contaminants in monitor well samples in excess of North Carolina Groundwater Protection Standards. During the October 2018 monitoring event, one background well (MW-1R), one deep and four shallow compliance wells (DW-1, MW-5, MW-6, MW-8 and MW-9), one off -site assessment well (GP-8) and two surface water sampling locations (SW-1 and SW-2) were sampled. Based on groundwater elevations measured during the October 2018 sampling event, the overall groundwater flow at the landfill is to the east-northeast at an average velocity of 34.74 feet per year (ft/yr). Deep well DW-1 was installed within the bedrock aquifer near MW-8 along the facility's southern boundary to delineate the vertical extent of landfill contaminants that may be migrating from the landfill cell. A comparison of groundwater elevations in DW-1 and MW-8 indicates that an upward gradient continues to exist between the two water -bearing zones in the vicinity of these wells. Due to the upward gradient in the vicinity of DW-1, contaminants are unlikely to migrate downward. Current analytical data of groundwater quality at DW-1 supports this premise. Groundwater and surface water samples were analyzed for constituents listed in 40 CFR 258, Appendix I Constituents for Detection Monitoring (Appendix I). In addition, the groundwater samples from monitor wells MW-8 and GP-8 were also analyzed for the Appendix II List of Hazardous Inorganic and Organic Constituents (Appendix II) for assessment monitoring. The laboratory analytical results for the groundwater samples were compared to the maximum allowable concentrations promulgated in the State of North Carolina groundwater standards as presented in 15A North Carolina Administrative Code, Subchapter 2L (15A NCAC 2L), hereafter referred to as the 2L Standards or the Solid Waste Groundwater Protection Standards (GWPST) established in accordance with the Solid Waste Rules Section .1634(h). The surface water sample analytical results were compared to the maximum allowable concentrations promulgated in the North Carolina Surface Water Class C standards found in 15A NCAC 2B (2B Standards). From groundwater samples collected in October 2018, six constituents were reported at concentrations greater than their respective 2L Standards or GWPSTs: benzene, tetrachloroethene, trichloroethene, vinyl chloride, cobalt, and vanadium. Dichlorodifluoromethane is the only organic constituent on the Appendix II list that was detected above the laboratory method detection limits (MDLs). For surface water samples, the metals barium, cobalt, lead, vanadium, and zinc were detected above their MDLs in the sample from the upstream (SW-1) surface water monitoring location. Barium, cobalt, and vanadium were March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 detected in the downstream (SW-2) surface water sample. None of applicable metals were at concentrations that exceeded its respective 2B Standard. The frequency and number of metals detected at the site have declined since low -flow sampling procedures were implemented in 1999. It is recommended that the use of low flow sampling methods be continued and that monitoring for inorganics be limited to Appendix I inorganic constituents (no cyanide or sulfide) at the facility's monitor wells and surface water monitoring points. VOCs have been detected in samples collected from well MW-8 since the well was installed in 2001. The consistent detection of VOCs at MW-8 indicates that a source or sources of VOCs may be present at or near this well. Additional assessment of surrounding properties was conducted in October 2008 to further evaluate the extent of the groundwater plume in the area of MW-8. VOCs were detected above the 2L Standards in the off -site groundwater assessment monitor wells in October 2008 and subsequent monitoring events. An assessment of corrective measures and corrective action should be performed to address the groundwater contamination in the area of MW-8. In the meantime, it is recommended that groundwater monitoring at MW-8 continue to monitor for Appendix II VOCs. Sampling of the off -site assessment wells in the vicinity of MW-8 (i.e., GP-9 and /or GP-10) should continue to be included as part of the regular compliance monitoring to monitor the extent, movement and concentration of off -site groundwater contamination. S&ME recommends that semi-annual assessment monitoring of groundwater and surface water be continued at the Sorrell Landfill. Currently, six monitor wells and two surface water locations are sampled at Sorrell Landfill to fulfill the monitoring requirements as required by North Carolina Solid Waste Management Rule .1634. It is our understanding that the Wake County Department of Environmental Services, Water Quality Division regularly samples the potable wells on the adjacent properties to the south of the landfill (Dye and Herndon properties) as a precautionary measure to protect the users of these potable wells. S&ME recommends the results of this sampling event be provided to Wake County for consideration in deciding protective measures for the potable wells and their users. March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 1.0 Introduction S&ME, Inc. (S&ME) was contracted by the Sorrell Grading Company and The Estate of Mr. Clyde E. Sorrell, Senior, (Sorrell) to provide groundwater and surface water monitoring services at Sorrell Landfill located off of Smith Road (S.R 1303) near Apex, North Carolina (Figure 1). The sampling for this monitoring event was completed on October 19, 2018. The services were performed in accordance with the facility's revised Water Quality Monitoring Plan (WQMP) prepared in February 1996 by Trigon Engineering Consultants, Inc. Section 4.0 of the WQMP outlined the sampling and analysis plan (SAP) to be used to monitor groundwater and surface water in the vicinity of the landfill. The landfill is currently in an assessment monitoring program because of the detection of contaminants in monitor well samples at concentrations exceeding 2L Standards. In accordance with the approved WQMP, four baseline sampling events were performed in May, June, July, and August 1999. During each of those sampling events, groundwater samples were collected from two upgradient (background) wells (MW-1R and MW-4), and three downgradient (compliance) wells (MW-5, MW-6, and MW-7). A surface water sample was collected at one down -gradient surface water monitoring point (SW-2). Groundwater and surface water samples collected during the four 1999 sampling events were analyzed for constituents listed in 40 CFR 258, Appendix I Constituents for Detection Monitoring (Appendix I). The sample results and subsequent statistical analyses performed for the 1999 sampling rounds constitute the baseline for the semi-annual sampling events being conducted during the post -closure period. The baseline sample results submitted to the North Carolina Department of Environmental Quality, Division of Waste Management (NCDEQ-DWM) on April 9, 2001, indicated that one or more constituents listed in Appendix I were detected at statistically significant levels. Based on the results of the baseline sampling events, assessment monitoring was conducted at Sorrell Landfill during four subsequent sampling events (April 2001, December 2001, April/May 2002, November 2002) for the constituents listed in 40 CFR 258, Appendix II List of Hazardous Inorganic and Organic Constituents (Appendix II) as promulgated in Section .1634. At the request of the DWM, beginning with the December 2001 sampling event and continuing with the April/May 2002 and November 2002 events, S&ME also collected groundwater samples from two new monitor wells- one shallow well (MW-8) and one deep well (DW-1), installed along the facility's southern property boundary. Both wells are located approximately between the southern edge of the landfill cell and the closest residential well. Based on measured monitor well water elevations obtained during performance of the 2001 and 2002 sampling events, and potentiometric mapping of the shallow aquifer, it appears that monitor wells DW-1 and MW-8 may be hydraulically upgradient of the landfill. However, for the purposes of this report, wells MW-8 and DW-1 are reported as compliance wells. Following the November 2002 sampling event, S&ME recommended revising the number of sampling locations, the sampling frequency, and the laboratory analysis performed at each sampling location. In a letter dated April 23, 2003, the Section approved these revisions. Based on the revised monitoring plan, one background well (MW- 1R), five compliance wells (DW-1, MW-5, MW-6, MW-7, and MW-8), and two surface water locations (SW-1 and SW-2) were to be monitored. Subsequently, S&ME determined that monitor well MW-7 was located either in or immediately adjacent to the landfill wastes. Therefore, S&ME requested, on behalf of the owners, that the March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 sampling of MW-7 be suspended and that a new compliance well be installed in that area. In a letter dated May 10, 2004, the Section concurred with that opinion. Monitor well MW-9 was installed on September 18, 2007 and has replaced MW-7 as the compliance well along the northern portion of the landfill. Well MW-7 remains in place for measuring water levels. This report presents the methods used and the results of the sampling event conducted by S&ME during the October 2018 sampling event at the facility, which included the sampling of one background well (MW-1R), one deep and four shallow compliance wells (DW-1, MW-5, MW-6, MW-8 and MW-9), one off -site assessment well (GP-8) and two surface water sampling locations (SW-1 and SW-2). 2.0 General Physiography Some of the general background information presented in this section has been compiled from the Water Quality Monitoring Plan prepared in June 1996 by Trigon Engineering Consultants, Inc., from the Preliminary Explanatory Text for the 1985 Geologic Map of North Carolina (1988) prepared by The North Carolina Geological Survey; and from Geology of the Carolinas (1991) by Horton and Zullo. The information presented herein has been modified for brevity and is intended to provide general background information, particularly in regards to regional topography, geology, and hydrogeology. 2.1 Site Topography The landfill site is located southeast of Apex, North Carolina in southwestern Wake County (Figure 1). At its highest point, the landfill extends approximately 30 to 45 feet in elevation above the surrounding natural ground surface. The natural ground surface elevations at the site prior to construction of the landfill ranged from 400 to 460 feet above Mean Sea Level (MSL). The current landfill cap surface slopes gently downward to the southwest to an approximate elevation of 490 feet above MSL (Figure 2). 2.2 Regional Geology The site is located in the eastern portion of the Piedmont physiographic province. In Wake County, the land surface is evenly divided between flat to gently rolling inter -stream areas and valleys. Soils and weathered rock typically extend downward to depths up to 60 feet below ground surface (ft-bgs). Outcrops of hard bedrock are rare and most are confined to streambeds and excavations. Bedrock at the site area has been characterized as part of the Carolina Slate Belt. The Carolina Slate Belt in this portion of the county consists primarily of predominately low-grade felsic metavolcanic and meta-epiclastic rocks, presumed to have originated from a sub -aqueous, volcanic arc environment. Primary rock types include metamorphosed argillites, mudstone, volcanic sandstone, and conglomerate. Approximately one-half mile to the west, an unconformity identified as the Jonesboro Fault separates the Carolina Slate Belt from Triassic claystone and siltstone sediments. March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 Cretaceous -age Coastal Plain sediments immediately overlie the basement rocks in the southern and eastern portion of the site. Middendorf units include deposits of sand, sandstone, and mudstone. Beds are laterally discontinuous with inter -fingering cross -bedding common in the upper units. 2.3 Site Geology and Hydrogeology The site lies on the western edge of the Neuse River basin. Surface water run-off from the site flows to the west into Middle Creek. Surface water then flows to the south and east toward the confluence of Middle Creek and the Neuse River near Smithfield, NC. The unconfined aquifer in western Wake County is typically present in the unconsolidated subsurface residual soils to an approximate depth of 30 ft-bgs, depending on the topography. Shallow groundwater flow patterns in the vicinity of the landfill have been evaluated through a series of shallow downgradient monitor wells finished at depths ranging between approximately 14 to 27 ft-bgs and approximately 45 ft-bgs in an upgradient well (MW- 1R). The depth to groundwater varies from just below the ground surface in the downgradient wells located on the western side of the landfill to approximately 34 ft-bgs on the eastern (upgradient) side of the landfill at MW- 1 R. A nested well pair, one shallow well (MW-8) and one deep well (DW-1) is approximately located between the edge of the landfill cell and residential wells installed along the facility's southern property boundary line (Figure 2). The shallow monitor well (MW-8) was installed into the overlying sandy silt and is believed to monitor the same shallow unconfined aquifer monitored by the other wells previously installed at the site. Monitor well DW-1 is the only well installed into the bedrock aquifer at the site. At the location of DW-1, the soil immediately beneath the ground surface was classified as sandy silt and silt to a depth of approximately 54 feet bgs. Underlying the sandy silt and silt is partially weathered metavolcanic and metasedimentary rock of various degrees of weathering, extending to approximately 66 feet bgs, where more competent bedrock was encountered. The underlying competent rock is bluish schist with quartz, muscovite, biotite, and hornblende minerals, and was observed to a depth of 101 feet bgs, where the deep boring was terminated. During drilling activities, water -bearing fractures were observed in the bedrock at 78 feet bgs and 99 feet bgs. Based on field estimates by S&ME, the water -bearing zone at 78 feet bgs produced approximately one gallon per minute (gpm) and the water -bearing zone at 99 feet produced approximately six gpm. 2.4 Groundwater Table Prior to sampling for this monitoring event, each well was examined for its general integrity, including protection from surface water inflow, well identification tag, vented cap, lock, and general well security. Each well was opened and the depth to the water in the well was measured from a referenced mark on the top of the PVC well casing using an electronic water level indicator. The water elevation at each well was calculated by subtracting the depth measurement from the elevation of the referenced top of casing. Table 1 presents data on the depth to groundwater measurements and groundwater elevation calculations for each of the monitor wells sampled during March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 the October 2018 sampling event and the groundwater elevation calculations at each of the methane monitor wells. The shallow groundwater is defined in this report as the water -bearing zone located in the soil regime beneath and in the vicinity of the landfill. The depth to the shallow groundwater was measured in the background wells (MW-1R, MW-4) and in the compliance wells (MW-5, MW 6, MW-7, MW-8 and MW-9) during the sampling event. Depth to groundwater was also measured in the deep well DW-1. However, this well monitors a separate water - bearing zone within the bedrock aquifer and is not representative of the shallow groundwater. In addition to the depth -to -water measurements taken at these groundwater monitor wells, depth -to -water measurements were also taken at thirteen groundwater piezometers (GP-7, GP-7D,GP-8, GP-9, GP-10, GP-10D, GP-11, GP-12, GP-12D, GP-13, GP-14, GP-15 and GP-16) installed along the southern boundary of the landfill that were used to assess groundwater quality and groundwater elevations in the vicinity of MW-8 and methane gas monitor wells to supplement the water elevation data. A complete list of monitor wells and methane gas monitor wells with the associated groundwater elevation calculation is presented on Table 1. 2.5 Hydraulic Gradient and Groundwater Flow Velocity Calculations The well water elevations and our interpretation of the water table surface expressed as a potentiometric map along with groundwater flow direction are shown on Figure 2. Based upon the groundwater elevations in the vicinity of the landfill cell, groundwater in this area is projected to flow north-northwest toward an unnamed tributary of Middle Creek, which is consistent with previous groundwater data. Hydraulic Gradient The average horizontal hydraulic gradient was calculated from three point calculation solutions using two well sets of groundwater elevation data measured during the October 18, 2018 sampling event and by applying the following equation (Driscoll, 1986): i=hl-h2 Where: i = Hydraulic gradient hl - h2 = Difference in hydraulic head (feet) L = Distance along flow path (feet) The three point calculation is used to estimate the hydraulic gradient perpendicular to a groundwater potentiometric contour of equal elevation determined from high, intermediate and low groundwater elevations at three monitor wells. The gradient calculated perpendicular to the equal elevation contour plotted from the well set is representative of a true gradient rather than the apparent gradient that is estimated from a two point gradient calculation. Based on the Driscoll gradient equation and using a third groundwater elevation to plot the equal elevation contour, the distance L can be measured between hl and h2 perpendicular to the equal elevation contour to estimate the true hydraulic gradient for the three groundwater elevation data points. The average horizontal hydraulic gradient from two three point solutions using well sets MW-1R, MW-9, and MW-4, and MW- March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 8, MW-5 and MW-6 is estimated to be 0.0275 ft/ft. This gradient is similar to the hydraulic gradient previously calculated for the site. The hydraulic gradient calculations are included in Appendix IV. Groundwater Flow Velocity An approximate average linear groundwater flow velocity (v) may be calculated by the equation (Freeze and Cherry, 1979): v = Ki Where: v = Average linear groundwater flow velocity [feet per day (ft/day)] K = Hydraulic conductivity (ft/day) i = Flow gradient as a ratio (ft/ft), n = Effective soil porosity (percent) Aquifer slug tests were previously performed in monitor wells MW-6, MW-7, MW-8, MW-9 and DW-1 at the site by S&ME using rising and falling head test techniques. The slug test data were used to estimate the hydraulic conductivity of the sediments in the surficial aquifer intersected by the screened intervals of the monitor wells tested. The aquifer test data were analyzed by the Bouwer and Rice Method. As summarized on Table 2, the average hydraulic conductivity values previously measured at the site ranged from 4.00x10-4 centimeters per second (cm/sec) to 1.86x10-4 cm/sec. The groundwater flow velocity was calculated for the site using the average hydraulic conductivity values measured at the site; the average hydraulic gradient of 0.0275 ft/ft, calculated from the three point calculation described above; and an effective porosity of 20%. Groundwater flow velocities calculated during the October 2018, sampling event ranged from 26.52 feet per year (ft/yr) between monitor wells MW-8 and MW-5 to 45.50 ft/yr between monitor wells MW-1R and MW-9. Calculations performed using the equation and input values above estimate the average groundwater flow velocity for the site was approximately 34.74 ft/yr. This velocity is similar to previous groundwater velocities calculated for the site. The calculated hydraulic gradients and groundwater flow velocities are presented in Table 3. As previously discussed, monitor wells MW-8 and DW-1 were installed in December 2001 along the facility's southern boundary based on hydrologic data available at the time and the relative position of the landfill and the nearby potable wells. Monitor well MW-8 was intended to serve as a point of compliance between the landfill and residential wells installed adjacent to the site's southern property boundary. However, as shown on Figure 2, static water levels measured during the October 2018 sampling event indicate that MW-8 may be located hydraulically upgradient of the landfill cell. DW-1 is the only well installed on site within a separate water -bearing zone contained within the bedrock aquifer, and was installed to delineate the vertical extent of landfill contaminants that may be migrating from the landfill cell. As shown on Table 1, the groundwater elevation in DW-1 was observed to be 2.81 feet higher than the groundwater elevation in MW-8 during the October 2018 sampling event. This difference in groundwater March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 elevations, representing hydraulic head, indicates that an upward gradient exists between the two water -bearing zones in the vicinity of these two wells. This upward flow component has been observed at these two wells since they were installed in December 2001. 2.6 Surface Water The site is located just south of an unnamed tributary that flows southwest into Middle Creek. Middle Creek flows to the southeast, eventually emptying into the Neuse River near Smithfield, North Carolina. The unnamed tributary is the only surface body to receive surface water runoff from the landfill. S&ME selected two surface water collection points along the unnamed tributary. One sample collection point (SW-1) is located hydraulically upgradient from the landfill. The other sample collection point (SW-2) is located hydraulically downgradient from the landfill. During the April 2018 sampling event, surface water samples were collected from both sample locations. Surface water sample collection points SW-1 and SW-2 are shown on Figure 2. 3.0 Sampling Program In accordance with 15A NCAC 13 B, § .1632, and the approved groundwater and surface water SAP for the facility, the following sections describe the procedures used for the collection of groundwater and surface water samples during the sampling event. S&ME sampled surface water from the up -gradient and down -gradient collection points along an unnamed tributary of Middle Creek (SW-1 and SW-2), one background well (MW-1R), four shallow and one deep compliance wells (MW-5, MW-6, MW-8, MW-9 and DW-1) on October 18, 2018. One shallow off -site groundwater assessment well (GP-8) was also sampled during the October 2018 sampling event. The monitor wells at the landfill were sampled using a low -flow peristaltic pump equipped with polyethylene tubing. Prior to sampling each of the wells, the groundwater was purged at a rate of approximately 150 milliliters per minute until the turbidity was reduced to less than 10 Nephelometric Turbidity Units (NTUs) where it was achievable. Stabilization of the selected field parameters was defined as a variance of less than 10 percent in three successive readings recorded two minutes apart. Monitor well MW-1R was sampled with a polyethylene bailer due to an increased depth -to -water. The surface water samples from the creek were collected using laboratory -supplied 1-liter bottles dipped directly into the stream as collection devices. The water was then poured into laboratory -prepared vials and bottles. At the completion of sampling, S&ME delivered the samples to Environmental Conservation (ENCO) Laboratories in Cary, North Carolina for analysis according to the following: • MW-1R, MW-5, MW-6, MW-8, MW-9, DW-1, SW-1, and SW-2 were analyzed for constituents listed in Appendix I (40 CFR 258); and • MW-8 and GP-8 were analyzed for constituents listed in Appendix II (40 CFR 258). March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 Laboratory analytical methods for Appendix I constituents included EPA Method 6010C/6020A (metals) and Method 8260B volatile organic compounds (VOCs). Laboratory analytical methods for Appendix II constituents included the Appendix I constituent list, plus Method 8270D (SVOCs), Method 7470A (mercury), Method 9014 (cyanide) and SM18 4500-5 D (sulfide). The analytical results reported from this sampling event are discussed in subsequent sections of this report. 4.0 Field Parameters Specific conductivity, pH, temperature, dissolved oxygen, oxygen reduction potential and turbidity were measured in the field during well purging prior to sample collection. The normal sampling protocol includes purging the shallow monitor wells with a peristaltic pump at a rate of approximately 150 milliliters per minute until the turbidity is reduced to less than 10 NTUs and the selected field parameters stabilize. Field parameters recorded just prior to collecting the groundwater samples are summarized in Table 4 and discussed in the following sections. 4.1 Specific Conductivity Specific conductivity (conductance) is a measurement of the ability of a solution to pass an electrical current. Dissolved inorganic anions and cations such as chloride, nitrate, sulfate, phosphate, sodium, calcium, aluminum, and iron increase the ability of water to carry a current. Therefore, conductivity is related to the amount of total dissolved solids in the water. Waters percolating through a landfill cell typically become enriched with dissolved solids, which are reflected by increased conductivity values. Typically, specific conductivity measures the presence of common ions such as chloride and sulfate that are not necessarily indicative of hazardous constituents. During the October 2018 sampling event, the specific conductance measured in the background well (MW-1R) was 0.029 milliSiemens per centimeter (mS/cm). Measurements in the four shallow compliance wells (MW-5, MW- 6, MW-8, and MW-9) ranged from 0.033 mS/cm (MW-9) to 0.900 mS/cm (MW-6). The specific conductance measured in the off -site monitoring well (GP-8) was recorded as 0.66 mS/cm. The specific conductance measured in the deep compliance well (DW-1) was recorded as 0.072 mS/cm. The highest groundwater conductivity value (0.900 mS/cm) was measured in well MW-6. In general, conductivity readings are within the typical range of values that would be expected to occur in shallow groundwater flow under natural conditions in the Eastern Piedmont region. 4.2 pH The pH is a measurement of the hydrogen ion concentration. Values lower than pH=7 indicate increasingly acidic conditions and values higher than pH=7 indicate increasingly alkaline conditions. The pH may strongly influence the activity of certain chemical reactions and the solubility and mobility of metals. March 14, 2019 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 The pH of the groundwater in the landfill wells was measured just prior to sample collection. The pH reading in the background well (MW-1R) was measured as 4.90. The pH measured in the four shallow compliance wells ranged from 4.70 (MW-8 and MW-9) to 6.20 (MW-5). The pH values are within the range that would be expected for shallow groundwater conditions in the Eastern Piedmont region. The pH in the off -site monitoring well (GP-8) was recorded as 4.80. The pH measured in the deep compliance well (DW-1) was recorded as 6.10. 4.3 Temperature Groundwater temperature collected from the background well was 16.99 °C (MW-1R). Groundwater temperatures recorded from samples collected from four shallow compliance wells ranged from 16.7 °C (MW-9) to 18.30 °C (MW-6). Temperature measured from the deep compliance well (DW-1) was 18.20 °C. Temperature measured from the off -site assessment well (GP-8) was recorded as 18.00 IC. Where the aquifer is in close proximity to the ground surface, groundwater temperatures may be closely related to seasonal temperature variations and the presence or absence of vegetative ground cover. Groundwater temperature directly affects the solubility of oxygen and other geochemical constituents. The solubility of dissolved oxygen is temperature -dependent, with oxygen being more soluble in cold water than in warm water. Groundwater temperature also affects the metabolic rate of bacteria. Rates of biodegradation almost double for every 100 C increase in temperature between 5 °C and 25 IC. Elevated temperatures may also be an indication of significant microbiological activity. 4.4 Turbidity Nephelometric turbidity was added to the list of field parameters for selected wells after the May 1999 sampling event detected higher than expected concentrations of metals. Because the samples collected from monitor wells MW-1R and MW-6 during the initial baseline sampling event were turbid, the suspended soil particles present in the groundwater could contribute to elevated concentrations of metals reported by the laboratory. Therefore, a turbidity value of 10 NTUs or less was established as a goal while purging and prior to collecting a groundwater sample. During the October 2018 sampling event, the target value of 10 NTUs was not achieved in monitor well MW-1R. Groundwater turbidity recorded just prior to sample collection in the four shallow compliance wells ranged from 0.4 NTUs (MW-9) to 8.1 NTUs (MW-5). The turbidity level measured in the deep compliance well (DW-1) was recorded as 1.2 NTUs. The turbidity level measured in the off -site assessment well (GP-8) was recorded as 9.4 NTUs. 5.0 Analytical Results S&ME sampled one upgradient (background) well; four shallow and one deep downgradient (compliance) wells; two surface water locations; and one off -site groundwater assessment well on October 18, 2018. The samples were analyzed by ENCO Laboratories for constituents listed in Appendix I of 40 CFR 258. The groundwater sample March 14, 2019 10 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 from compliance well MW-8 and the off -site assessment well GP-9 were additionally analyzed for Appendix II SVOCs, mercury, cyanide and sulfide. Laboratory analytical methods included EPA Method 6010C/6020A (metals), Method 8260B (VOCs), Method 8270D (SVOCs), Method 7074A (mercury), Method 9014 (cyanide), and SM18 4500-5 D (sulfide). The analytical results for the groundwater and surface water samples collected and analyzed in April 2018 are detailed below. A copy of the analytical laboratory report is provided in Appendix III. 5.1 Groundwater Groundwater sample analytical results were compared to North Carolina groundwater standards as presented in 15A North Carolina Administrative Code, Subchapter 2L (15A NCAC 2L), hereafter referred to as the 2L Standards and the Solid Waste Groundwater Protection Standards (GWPST) established in accordance with the Solid Waste Rules Section .1634(h). The analytical results for the October 2018 sampling event are summarized on Table S. For the October 2018 sampling event, six constituents were detected at concentrations greater than their respective 2L Standards, or GWPSTs: benzene (4.8 µg/L in MW-8), tetrachloroethene (52 µg/L in MW-8 and 42 µg/L in GP-8), trichloroethene (15 µg/L in MW-8 and 8.4 µg/L in GP-8), vinyl chloride (4.8 pg/L in MW-8 and 4.6 µg/L in GP-8), cobalt (4.2 pg/L at MW-8, 2.5 µg/L at MW-9, and 4.99 µg/L in GP-8), and vanadium (2.92 pg/L in MW-1R, 4.2 pg/L in MW-5, 6.76 pg/L in MW-6, and 1.5 µg/L in DW-1). The laboratory analytical results indicated that the concentrations of cobalt (in MW-8, MW-9, and GP-8); and vanadium (in MW-1R, MW-5, MW-6, and DW- 1); were below their respective laboratory reporting limits. Constituents reported at concentrations below the reporting limit are flagged with a "J" and are considered to be an estimate. It is important to note that the laboratory method detection limit (MDL) for vinyl chloride is 0.32 pg/L which is greater than the 2L Standard of 0.03 pg/L. Therefore, vinyl chloride may have been present at concentrations above the 2L Standard but reported below the MDL. 5.2 Surface Water The surface water samples were compared to the North Carolina Class C surface water standards as promulgated in 15A NCAC 2B (2B Standards). The surface water sample results for the October 2018 sampling event are summarized in Table 5. Of the organic constituents analyzed, only 1,4-dioxane was detected at a concentration above the respective MDLs from the surface water samples collected during the October 2018 sampling event. The inorganic constituents, barium, cobalt, lead, vanadium, and zinc were detected above their MDLs in the sample from the upstream (SW-1) surface water monitoring location during the October 2018 monitoring event. Barium, cobalt, and vanadium were detected in the downstream (SW-2) surface water sample location in October 2018. With the exception of 1,4-dioxane (SW-2), no constituents were detected above their respective 2B Standards in the sample collected from the upstream SW-1 or the downstream SW-2 location. However, detected constituent concentrations of cobalt and lead for the samples from both SW-1 and SW-2 location were reported with a "J" laboratory qualifier indicating that the values are estimated concentrations below the lowest calibration point. The detected constituent concentration of vanadium was reported with a "J" laboratory qualifier for the downstream SW-2 location only. March 14, 2019 11 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 6.0 Quality Control Samples Quality control samples are required by the WQMP to demonstrate consistency of the laboratory analytical processes and field sampling methods. During the October 2018 sampling event, in addition to the groundwater sample collected from monitor well DW- 1 and identified as DW-1 on the chain -of -custody (record sample), a blind duplicate sample was also collected from monitor well DW-1 (duplicate sample). As shown on Table 5, similar analytes were reported for the record sample and the duplicate sample. Additionally, to assess the efficacy of the field equipment decontamination procedures, an equipment rinse sample was taken by dipping the probe of the decontaminated water level meter into a laboratory supplied bottle of deionized water. The equipment blank sample was analyzed for the full Appendix I analyte list. No constituents were detected above the laboratory's method detection limit (MDL). The results of the quality control sampling are presented with the analytical results in Appendix III of this report. 7.0 Statistical Analysis Previous monitoring reports submitted to the Section for this facility have included a statistical evaluation of groundwater monitoring data. Statistical analysis was performed to determine whether or not a statistically significant increase (SSI) above statistically computed Upper Limits calculated from the upgradient background data set had occurred. For this sampling event, no statistical analysis was performed on the data. 8.0 Summary S&ME was contracted by Sorrell to provide groundwater and surface water monitoring services at Sorrell Landfill located just off Smith Road (S.R. 1303) near Apex, North Carolina. Groundwater samples were collected from one upgradient (background) well (MW-1R), four shallow and one deep downgradient (compliance) wells (MW-5, MW- 6, MW-8, MW-9 and DW-1), and one off -site assessment well (GP-9). Surface water samples were collected from the up -gradient and down -gradient surface water monitoring points (SW-1 and SW-2). The depth to the groundwater was measured in each monitor well and landfill methane well located at the site. As shown on the potentiometric map (Figure 2), groundwater in the vicinity of the landfill is projected to flow north-northwest toward an unnamed tributary of Middle Creek. It should be noted that static water levels measured during the October 2018 sampling event indicate that MW-8 may be located hydraulically upgradient of the landfill cell. In addition, the groundwater elevation in DW-1 was observed to be higher than the groundwater elevation in MW-8 during the October 2018 sampling event. This difference in groundwater elevations indicates that an upward gradient exists between the two water -bearing zones in the vicinity of these two wells. These findings are consistent with historical data. March 14, 2019 12 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina S&ME Project No. 1054-07-251 Groundwater and surface water samples were analyzed by ENCO Laboratories for constituents listed in Appendix I. The sample from monitor well MW-8 and off -site assessment monitor well GP-9 were also analyzed for constituents listed in Appendix II. Laboratory analytical methods included EPA Method 6010C/6020A (metals), Method 8260B (VOCs), Method 8270D (SVOCs), Method 7470A (Mercury), and Method 9014 (cyanide). 8.1 Groundwater Results From groundwater samples collected during the April 2018 sampling event, six constituents were detected at concentrations greater than their respective 2L Standards, or GWPSTs: benzene (4.8 µg/L in MW-8), tetrachloroethene (52 µg/L in MW-8 and 42 µg/L in GP-8), trichloroethene (15 µg/L in MW-8 and 8.4 µg/L in GP- 8), vinyl chloride (4.8 µg/L in MW-8 and 4.6 µg/L in GP-8), cobalt (4.2 µg/L at MW-8, 2.5 µg/L at MW-9, and 4.99 µg/L in GP-8), and vanadium (2.92 µg/L in MW-1R, 4.2 µg/L in MW-5, 6.76 µg/L in MW-6, and 1.5 µg/L in DW-1). The detected analytes from the October 2018 sampling event are summarized on Table S. It is important to note that the laboratory method detection limit (MDL) for vinyl chloride is 0.32 µg/L which is greater than the 2L Standard of 0.03 µg/L. Therefore, vinyl chloride may have been present at concentrations above the 2L Standard but reported below the MDL. 8.2 Surface Water Samples The inorganic constituents barium, cobalt, lead, vanadium and zinc, were detected above their MDLs in the sample from the upstream (SW-1) surface water monitoring location during the October 2018 monitoring event. Barium cobalt, lead, vanadium, and zinc were detected in the downstream (SW-2) surface water sample location in October 2018. Detected constituent concentrations of cobalt and lead for the samples from both SW-1 and SW-2 location were reported with a "J" laboratory qualifier indicating that the values are estimated concentrations below the lowest calibration point. The detected constituent concentration of vanadium was reported with a "J" laboratory qualifier for the downstream SW-2 location only. None of the listed metals exceed its applicable 2B Standard. Organic constituents in surface water samples collected during the October 2018 sampling event were not detected at concentrations above their MDLs with the exception of 1,4-dioxane (SW-2). Detected constituent concentrations in the upstream sample were similar to, or less than, concentrations in the downstream sample. No 2B Standard is listed for 1,4-dioxane. 9.0 Recommendations As required by North Carolina Solid Waste Management Rule .1634, these results should be forwarded to the owner/operator of Sorrell Landfill for inclusion in the operating record and to the NCDEQ Division of Waste Management for their review. In addition to the conclusions presented in previous chapters of this report, S&ME provides the following recommendations: March 14, 2019 13 April 2018 Semi -Annual Monitoring Sorrell Landfill (DWM Permit No. 92-04) Apex, Wake County, North Carolina I S&ME Project No. 1054-07-251 Analytical data since 1999 have demonstrated that the use of low -flow sampling techniques has successfully reduced reported inorganics in the samples to more accurate results. Accordingly, it is recommended that monitoring for inorganics continue to be limited to Appendix I inorganic compounds at the facility's monitor wells (no cyanide or sulfide). VOCs have been detected in samples collected from well MW-8 since the well was installed in 2001. The consistent detection of VOCs at MW-8 indicates that a source, or sources, of VOCs may be present at, or near, this well. Additional assessment of surrounding properties was conducted in October 2008 to further evaluate the extent of the groundwater plume in the area of MW-8. VOCs were detected above the 2L Standards in the off -site groundwater assessment monitor wells in October 2008 and subsequent monitoring events. To monitor the off -site groundwater contamination, off -site piezometer, GP-8, was sampled during the October 2018 sampling event. Of the VOCs detected in nearby compliance well MW- 8, VOCs were also detected in a sample collected from piezometer GP-9 during the October 2018 sampling event. An assessment of corrective measures and corrective action should be performed to address the groundwater contamination in the area of MW-8. Groundwater monitoring at MW-8 should continue to be analyzed for Appendix II VOCs and sampling of the off -site assessment wells in the vicinity of MW-8 (i.e., GP-8, GP-9 and /or GP-10) continue to be included as part of the regular compliance monitoring, to monitor the extent, movement and concentration of off -site groundwater contamination. Surface water quality is monitored upstream and downstream in the vicinity of the landfill at sampling locations SW-1 and SW-2, respectively. None of the Appendix I targeted compounds or metals exceeded its respective 2B Standard. Samples from surface water sampling locations SW-1 and SW-2 should continue to be monitored for the Appendix I organic and inorganic compounds required for detection monitoring. It is our understanding that the Wake County Department of Environmental Services, Water Quality Division regularly samples the potable wells on the adjacent properties to the south of the landfill (Dye and Herndon properties) as a precautionary measure to protect the users of these potable wells. S&ME recommends the results of this sampling event be provided to Wake County for consideration in deciding protective measures for the potable wells and their users. March 14, 2019 14 Appendices Appendix I - Figures v 0 rn N L) N L LL J J LL z Q J J J W 0 N L!'1 N C) O V C) O Appendix II - Tables Table 1 Static Groundwater Elevations Semi -Annual Assessment Monitoring - October 18, 2018 Sorrell Landfill, Apex, North Carolina S&ME Project No.1054-07-251 Well Number TOC Elevation (Feet MSL) Screened Interval (feet below TOC) Depth to Groundwater (Feet below TOC) Groundwater Elevation (Feet MSL) Groundwater Monitoring Wells MW-1R 482.92 25-45 35.44 447.48 Background Wells MW-4 445.30 12-22 4.64 440.66 MW-5 393.63 7-17 4.08 389.55 MW-6 407.15 7-17 2.95 404.20 MW-7 423.42 13-28 13.92 409.50 Compliance Wells MW-8 463.33 21.9-31.9 26.19 437.14 MW-9 425.82 14-34 16.84 408.98 Off -site Groundwater Monitoring Wells DW-1 GP-7 463.18 Groundwater 471.32 96-101 Piezometers 25-35 23.23 25.05 439.95 ME!!!!! 446.27 GP-7D 471.33 55-65 25.30 446.03 GP-8 460.39 23-33 24.76 435.63 GP-9 462.19 20.1-30.1 25.35 436.84 GP-10 456.15 15-25 19.98 436.17 GP-101) 456.20 78-88 18.53 437.67 GP-11 461.77 23-33 20.38 441.39 GP-12 466.71 23-33 29.96 436.75 GP-12D 466.72 58-68 28.41 438.31 GP-13 453.70 20-30 19.08 434.62 GP-13D 453.56 59-69 17.45 436.11 GP-14 463.45 25-35 27.70 435.75 GP-15 454.32 18-28 17.67 436.65 GP-16 MMW-2 449.99 00 Methane 471.71 18-28 Monitoring Wells 5-20 9.78 DRY 440.21 DRY MMW-3 452.50 3-18 17.40 435.10 Methane Monitoring Wells MMW-4 445.60 3-13 8.41 437.19 MMW-5 437.81 3.5-13.5 15.77 422.04 MMW-6 419.04 5-15 DRY DRY Notes: TOC = Top of Casing MSL = Mean Sea Level NM = Not Measured TOC Elevations measured by Bateman Civil Survey, June, 2007. GP-7 - GP-16 installed by S&ME between September 5 & 11, 2008, casing elevations by Bateman Civil Survey, September 11, 2008. Monitoring wells MW-4, MW-5, andMW-6 installed by Law Engineering in October 1991. All other wells were installed by S&ME. MW-9 installed by S&ME on September 18, 2007, casing elevation by Bateman Civil Survey, October 5, 2007. T:1Projects120071ENV107-251 Sorrell LandflllReports12018 October GW SamplinglDeliverableslSorrell Landfill October 2018 Tables.xlsx Table 2 Summary of Hydraulic Conductivity Values Semi -Annual Assessment Monitoring - October 18, 2018 Sorrell Landfill, Apex, North Carolina S&ME Project No. 1054-07-251 Well Number Screened Interval (ft-bgs) T Hydraulic Conductivity (K) cm/sec ft/sec ft/day ft/year Background Wells MW-1R 25 - 45' -- -- -- -- MW-4 12 - 22' -- -- -- -- Compliance Wells MW-5 7.0 - 17' -- -- -- -- MW-6 7.0 - 17' 1.86E-04 6.07E-06 0.525 191.47 MW-7 13 - 28' 3.25E-04 1.06E-05 0.917 334.59 MW-8 22 - 32' 4.00E-04 1.31E-05 1.130 412.49 MW-9 14 - 34' 3.86E-04 1.26E-05 1.090 397.85 DW-1 96 - 101' 3.28E-04 1.07E-05 0.924 337.44 Notes: ft-bgs = feet below ground surface ft/sec = feet per second ft/yr = feet per year -- = no site specific hydraulic conductivity values available Hydraulic conductivity for MW-6 and MW-7 obtained from slug tests by S&ME, April 1999. Hydraulic conductivity for MW-8, MW-9 and DW-I obtained from slug tests by S&ME, January/March 2008. Hydraulic conductivity for DW-1 was calculated from transmissivity value using the Cooper-Bredehoeft-Papadopulos solution where K=T/b. T:\Projects\2007\ENV\07-251 Sorrell Landfill\Reports\2018 October GW Sampling\Deliverables\Sorrell Landfill October 2018 Tables.xlsx Table 3 Groundwater Velocity Calculations Semi -Annual Assessment Monitoring - October 18, 2018 Sorrell Landfill, Apex, NC S&ME project Number 1054-07-251 Gradient Horizontal Effective Hydraulic Gradient Calculation Monitoring Flow Gradient Segment Segment Velocity Gradient Porosity Conductivity Segment Wells Direction Length (feet) Elevations (Vgw, feet/year) (i, feet) (ne) (K, cm/sec) feet MW-1 R to 447.48 MW-9 408.98 i 1 NNW 1690 0.0272 0.2 3.25E-04 45.50 Intermediate 440.66 Well MW-4 MW-8 to 437.14 ------------------- MW-5 38955_ i 2 WNW 1695 0.0277 0.2 1.86E-04 26.52 Intermediate 404.20 Well MW-6 Average Hydraulic Gradient= 0.0275 Avg. Velocity = 34.74 feet/year Notes: Horizontal velocities based on the modified Darcy equation Vgw — Ki/ne. Porosity (n,) estimated for residual soils in Carolina Slate Belt Average K value used for background wells and compliance wells Hydraulic Gradient (i) calculated by measuring linear feet between selected contour intervals Ave. Linear Velocity (v) = (1.035E06)K*i/n for units shown To convert cm/sec to ft/yr, multiply n by L035E06 TVrojectsMOnEMA07-251 Sorrell Landfi111Reports12018 October GW SamplinglDeliverableslSorrell Landfill October 2018 Tables.xlsx Table 4 Summary of Field Parameters Semi -Annual Assessment Monitoring - October 18, 2018 Sorrell Landfill, Apex, North Carolina S&ME Project No. 1054-07-251 Field Parameter Well Number Conductivity2 0 3 Temperature (C) 6 Turbidity (NTUs) (MS/Cm) .too R 4.90 0.029 16.99 28.4 x � v Cd GG MW-5 6.20 0.127 18.00 8.1 MW-6 6.00 0.900 18.30 5.6 MW-8 4.70 0.074 18.20 1.9 MW-9 4.70 0.033 16.70 0.4 0 U DW-I 6.10 0.072 18.20 1.2 GP-8 4.80 0.066 18.00 9.4 O SW-1 5.44 0.046 17.98 77.0 zi SW-2 6.30 0.206 14.78 2.8 Notes: pH reported in standard units mS/cm = miliSiemens per centimeter °C = degrees Celsius mg/L = milligrams per liter my = millivolts NTUs = nephelometric turbidity units NM = Not Measured T:1Projects120071ENV107-251 Sorrell LandfilllReports12018 October GW SamplinglDeliverableslSorrell Landfill October 2018 Tables.xlsx Table 5 Detected Analytes Semi -Annual Assessment Monitoring - October 18, 2018 Sorrell Landfill, Apex, North Carolina S&ME Project No. 1054-07-251 Sample Type Background Well Compliance Wells Off -site Assessment Well Quality Control Samples Surface Water Sample Sampling Location MW-1R MW-5 MW-6 MW-8 MW-9 DW-1 GP-8 Equip. Blank Duplicate*** SW-1 SW-2 Sampling Date 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 EPA Appendix I Volatile Organic Compounds (µg/L) 15A NCAC 2L 15 NCAC 2B upstream downstream 1, 1, 1,2-Tetrachloroethane I* <0.17 <0.17 0.78J <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 NE <0.17 <0.17 1, 1 -dichloroethane 6 <0.13 <0.13 <0.13 2 <0.13 <0.13 <0.13 <0.13 <0.13 no std. <0.13 <0.13 1, 1 -dichloroethene 350 <0.21 <0.21 <0.21 0.45J <0.21 <0.21 <0.21 <0.21 <0.21 no std. <0.21 <0.21 1,4-dichlorobenzene 6 <0.19 <0.19 <0.19 1.1 <0.19 <0.19 <0.19 <0.19 <0.19 no std. <0.19 <0.19 Benzene 1 <0.15 <0.15 <0.15 4.8 <0.15 <0.15 <0.15 <0.15 <0.15 1.19 <0.15 <0.15 Cis-1,2-dichloroethene 70.0 <0.15 <0.15 <0.15 24 <0.15 <0.15 <0.15 <0.15 <0.15 no std. <0.15 <0.15 Dibromomethane 70* <0.27 <0.27 1.9 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 no std. <0.27 <0.27 Tetrachloroethene 0.7 <0.17 <0.17 <0.17 52 <0.17 <0.17 42 <0.17 <0.17 0.7 <0.17 <0.17 Trichloroethene 3 <0.15 <0.15 <0.15 15 <0.15 <0.15 8.4 <0.15 <0.15 2.5 <0.15 <0.15 Vinyl chloride 0.03 <0.32 <0.32 <0.32 4.8 <0.32 <0.32 4.6 <0.32 <0.32 0.025 <0.32 <0.32 X lenes total 500 <0.45 <0.45 <0.45 2.2J <0.45 <0.45 <0.45 <0.45 <0.45 no std. <0.45 <0.45 Methylene chloride 5 <0.23 <0.23 <0.23 2.1 <0.23 <0.23 0.63J <0.23 <0.23 no std. <0.23 <0.23 EPA Appendix I Inorganic Compounds Method 6010B/6020 /I, 15A NCAC 2L MW-1R MW-5 MW-6 MW-8 MW-9 DW-1 GP-8 Equip. Blank Duplicate*** 15 NCAC 2B SW-1 SW-2 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 Barium 700 10 34.3 38.3 89.4 25.8 9.76J 60.8 <1.10 9.6J 1,000 36.8 78.9 Beryllium 4* <0.160 <0.160 <0.160 0.271J <0.160 <0.160 0.233 <0.160 <0.160 6.5 0.199 <0.160 Cadmium 2 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.815J <0.360 <0.360 8.8 <0.360 <0.360 Cobalt I* <1.40 <1.40 <1.40 4.2J 2.5J <1.40 4.99J <1.40 <1.40 no std. 1AJ 1.46J Lead 15 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 13.88 4.32J <3.10 Vanadium 0.3* 2.92J 4.2J 6.76J <1.40 <1.40 1.5J <1.40 <1.40 5.0 J no std. 10.6 1.71J Zinc 1000 <4.40 <4.40 <4.40 11.1 7.24J <4.40 168 <4.40 <4.40 36.0 9.16 <4.40 EPA Appendix II Volatile Organic Compounds (µg/L) 15A NCAC 2L MW-1R MW-5 MW-6 MW-8 MW-9 DW-1 GP-8 Equip. Blank Duplicate*** 15 NCAC 2B SW-1 SW-2 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 Dichlorodifluoromethane 1000 NA NA NA 5.8 NA NA 28 NA NA no std. NA NA State Mandated Organic Compounds (µg/L)# 15A NCAC 2L MW-1R MW-5 MW-6 MW-8 MW-9 DW-1 GP-8 Equip. Blank Duplicate 15 NCAC 211 SW-1 SW-2 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 10/18/2018 1,4-Dioxane 3 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 no std. <1.2 2 Notes: ug/L = micrograms per liter (parts per billion). SWSL = NC Department of Environmental Quality Solid Waste Section Limit established 2007 15A NCAC 2L = North Carolina Groundwater Quality Standards (Updated January 2010) GWPST = Solid Waste Section Groundwater Protection Standard Bold and shaded indicates above 15A NCAC 2L or GWPST or 2L IMAC NE = Not Established NA = Not Analyzed J = Detected, but below the Reporting Limit, therefore, result is an estimated concentration 15A NCAC 2B = North Carolina Water Quality Standards for Surface Waters [Freshwater Aquatic Life (AL) or Human Health, September 22, 2017] Target analytes not shown were not detected above the laboratory method detection limits. * Indicates there is currently no 2L Standard. The target analyte was compared to the Solid Waste Section Groundwater Protection Standard (GWPST). ** Laboratory reported m-cresol and p-cresol combined. (m-cresol 2L Std. = 400 ug/L, p-cresol 2L Std. = 40 ug/L) *** October 18, 2018 sampling event - a blind duplicate sample was collected from monitor well DW-1 at the same time as the record sample. # Indicates a target analyte mandated for testing by the NC Division of Waste Management, Solid Waste Section in a Memorandum dated May 29, 2018. no std. - There is no North Carolina Surface Water Quality Standard listed in 15A NCAC 2B T:1Projects120071ENV107-251 Sorrell LandfilllReports12018 October GW SamplinglDeliverableslSorrell Landfill October 2018 Tables.xlsx Appendix III - Laboratory Reports Environmental Conservation Laboratories, Inc. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Monday, November 5, 2018 S&ME, Inc. (SM001) Attn: Sam Watts 3201 Spring Forest Road Raleigh, NC 27616 RE: Laboratory Results for Project Number: 1054-07-251, Project Name/Desc: Sorrell Landfill - Semi -Annual ENCO Workorder(s): CB16079 Dear Sam Watts, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, October 19, 2018. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, 00, (/ L_ - C�_ A Chuck Smith Project Manager Enclosure(s) (� �Go www.encolabs.com The total number of pages in this report, including this page is 83. PROJECT NARRATIVE Client: S&ME, Inc. (SM001) Project: Sorrell Landfill - Semi -Annual Lab ID: CB16079 Overview (� 0a www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The Sulfide spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on an acceptable LCS (QM-07). The Silver post -digestion spike did not meet method requirementsdue to confirmed matrix effects (QM-08). Quality Control Remarks The associated CCV standard exhibited high bias; since the results id ND, there is no impact (QV-01). The associated CCV standard exhibited low bias; the reproted result should be considered to be a minimum estimate (QV-02). Other Comments The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Chuck Smith Project Manager Page 2 of 83 (� 0a www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 9204-MW1R Lab ID: CB16079-01 Sampled: 10/18/18 18:30 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 12:46 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 11:53 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 09:46 10/25/18 21:44 Client ID: 9204-MW1R Lab ID: CB16079-01RE1 Sampled: 30/18/18 18:30 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/30/18 14:09 10/31/18 04:17 Client ID: 9204-MW5 Lab ID: CB16079-02 Sampled: 10/18/18 12:00 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:20 EPA 6020B EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 11:57 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 09:46 10/25/18 22:17 Client ID: 9204-MW5 Lab ID: CB16079-02RE1 Sampled: 10/18/18 12:00 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/30/18 14:09 10/31/18 04:54 Client ID: 9204-MW6 Lab ID: CB16079-03 Sampled: 10/18/18 11:20 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:23 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:01 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 09:46 10/25/18 22:49 Client ID: 9204-MW6 Lab ID: CB16079-03RE1 Sampled: 10/18/18 11:20 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 17:02 Client ID: 9204-MW8 Lab ID: CB16079-04 Sampled: 10/18/18 14:15 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:25 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:06 EPA 7470A EPA 7470A 11/15/18 11/01/18 12:42 11/02/18 14:06 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 09:46 10/25/18 23:21 EPA 8270D EPA 3510C_MS 10/25/18 12/02/18 10/23/18 06:13 10/30/18 20:36 EPA 9014 EPA 9010C 11/01/18 10/25/18 10:55 10/30/18 18:03 SM 4500S2 D-2011 NO PREP 10/25/18 10/22/18 18:10 10/22/18 18:20 Client ID: 9204-MW8 Lab ID: CB16079-04RE1 Sampled: 10/18/18 14:15 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 17:38 Client ID: 9204-MW9 Lab ID: CB16079-05 Sampled: 10/18/18 10:45 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:27 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:10 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 09:46 10/25/18 23:53 Page 3 of 83 (� 0a www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 9204-MW9 Lab ID: CB16079-OSRE3 Sampled: 10/18/18 10:45 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 18:14 Client ID: 9204-DWI Lab ID: CB16079-06 Sampled: 10/18/18 15:05 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:30 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:14 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 13:06 10/26/18 13:31 Client ID: 9204-DWI Lab ID: CB16079-06RE1 Sampled: 10/18/18 15:05 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 18:51 Client ID: 9204-GP8 Lab ID: CB16079-07 Sampled: 10/18/18 17:15 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:32 EPA 6020B EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:41 EPA 7470A EPA 7470A 11/15/18 11/01/18 12:42 11/02/18 14:08 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 10:03 10/26/18 02:14 EPA 9014 EPA 9010C 11/01/18 10/25/18 10:55 10/30/18 18:04 SM 450052 D-2011 NO PREP 10/25/18 10/22/18 18:10 10/22/18 18:20 Client ID: 9204-GP8 Lab ID: CB16079-07RE1 Sampled: 10/18/18 17:15 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 19:27 EPA 8270D EPA 3510C_MS 10/25/18 12/02/18 10/23/18 06:13 10/31/18 12:44 Client ID: 9204-SW1 Lab ID: CB16079-08 Sampled: 10/18/18 15:45 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:42 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:45 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 10:03 10/26/18 02:44 Client ID: 9204-SW1 Lab ID: CB16079-08RE1 Sampled: 10/18/18 15:45 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 20:04 Client ID: 9204-SW2 Lab ID: CB16079-09 Sampled: 10/18/18 12:20 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/27/18 12:51 10/29/18 13:44 EPA 6020B EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:49 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 10:03 10/26/18 03:14 Client ID: 9204-SW2 Lab ID: CB16079-09RE1 Sampled: 10/18/18 12:20 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 20:40 Client ID: 9204-Duplicate Lab ID: CB16079-10 Sampled: 10/18/18 00:00 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/29/18 13:07 10/30/18 13:54 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:53 EPA 8260B EPA 5030B_MS 11/01/18 10/25/18 10:03 10/26/18 03:44 Page 4 of 83 (� 0a www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 9204-Duplicate Lab ID: CB16079-30RE3 Sampled: 10/18/18 00:00 Received: 10/19/18 19:05 Parameter Preoaration Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 14:43 11/01/18 00:55 Client ID: 9204-EquipmentBlank Lab ID: CB16079-11 Sampled: 10/18/18 17:50 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/29/18 13:07 10/30/18 13:56 EPA 6020E EPA 3005A 04/16/19 10/27/18 12:54 10/30/18 12:57 EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 10:03 10/26/18 04:15 Client ID: 9204-EquipmentBlank Lab ID: CB16079-11RE1 Sampled: 10/18/18 17:50 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 14:43 11/01/18 01:32 Client ID: 9204-TripBlank Lab ID: CB16079-12 Sampled: 10/18/18 10:45 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260E EPA 5030B_MS 11/01/18 10/25/18 10:03 10/26/18 04:45 Client ID: 9204-TripBlank Lab ID: CB16079-12RE1 Sampled: 10/18/18 10:45 Received: 10/19/18 19:05 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 10/31/18 00:00 10/31/18 16:25 Page 5 of 83 (� �C-O www.encolabs.com NORTH CAROLINA SWS SAMPLE DETECTION SUMMARY lient ID: 9204-MWlR Lab ID: CB16079-01 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - - - - Barium - Total - - - - - - - - - 10.0 - - - - 1 - - - - 1.10 - - 10.0 NE ug/L - - - - - EPA 6010D - - - - - Vanadium - Total 2.92 3 1 1.40 10.0 NE ug/L EPA 6010D lient ID: 9204-MWS Lab ID: CB16079-02 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - - - - Barium - Total - - - - - - - - - 34.3 - - - - 1 - - - - 1.10 - - - - - 10.0 - - - - - NE - - - - ug/L - - - - - - - EPA 6010D - - - - - Vanadium - Total 4.20 3 1 1.40 10.0 NE ug/L EPA 6010D lient ID: 9204-MW6 Lab ID: CB16079-03 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - - - - 1,1,1,2-Tetrachloroethane - - - - - - - - - 0.78 - - - 3 - 1 - - - - 0.17 - - - - - 1.0 - - - - - NE - - - - ug/L - - - - - - - EPA 8260E - - - - - Barium - Total 38.3 1 1.10 10.0 NE ug/L EPA 6010D Dibromomethane 1.9 1 0.27 1.0 NE ug/L EPA 8260E Vanadium - Total 6.76 1 1 1.40 10.0 NE ug/L EPA 6010D lient ID: 9204-MW8 Lab ID: CB16079-04 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - 1,1-Dichloroethane - - - - - - - - 2.0 - 1 - - - - 0.13 - - - - 1.0 - - - - NE - - - - ug/L - - - - - - - EPA 8260E - - - - - 1,1-Dichloroethene 0.45 3 1 0.21 1.0 NE ug/L EPA 8260E 1,4-Dichlorobenzene 1.1 1 0.19 1.0 NE ug/L EPA 8260E Barium - Total 89.4 1 1.10 10.0 NE ug/L EPA 6010D Benzene 4.8 1 0.15 1.0 NE ug/L EPA 8260E Beryllium - Total 0.271 3 1 0.160 1.00 NE ug/L EPA 6010D cis-1,2-Dichloroethene 24 1 0.15 1.0 NE ug/L EPA 8260E Cobalt - Total 4.20 1 1 1.40 10.0 NE ug/L EPA 6010D Dichlorodifluoromethane 5.8 1 0.20 1.0 NE ug/L EPA 8260E Methylene chloride 2.1 1 0.23 1.0 NE ug/L EPA 8260E Tetrachloroethene 52 1 0.17 1.0 NE ug/L EPA 8260E Trichloroethene 15 1 0.15 1.0 NE ug/L EPA 8260E Vinyl chloride 4.8 1 0.32 1.0 NE ug/L EPA 8260E Xylenes (Total) 2.2 3 1 0.45 3.0 NE ug/L EPA 8260E Zinc - Total 11.1 1 4.40 10.0 NE ug/L EPA 6010D lient ID: 9204-MW9 Lab ID: CB16079-05 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - - - - Barium - Total - - - - - - - - - 25.8 - - - - 1 - - - - 1.10 - - - - - 10.0 - - - - - NE - - - - ug/L - - - - - - - EPA 6010D - - - - - Cobalt - Total 2.50 3 1 1.40 10.0 NE ug/L EPA 6010D Zinc - Total 7.24 3 1 4.40 10.0 NE ug/L EPA 6010D lient ID: 9204-DWI Lab ID: CB16079-06 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - - - - Barium - Total - - - - - - - - - 9.76 - - - 3 - 1 - - - - 1.10 - - - - - 10.0 - - - - - NE - - - - ug/L - - - - - - - EPA 6010D - - - - - Vanadium - Total 1.50 1 1 1.40 10.0 NE ug/L EPA 6010D IientID: 9204-GP8 Lab ID: CB16079-07 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - - - - 1,1-Dichloroethane - - - - - - - - - 2.3 - 1 0.13 - - 1.0 - - - - - NE - - - - ug/L - - - - - - - EPA 8260E - - - - - Barium - Total 60.8 1 1.10 10.0 NE ug/L EPA 6010D Page 6 of 83 (� �C_O www.encolabs.com IientID: 9204-GP8 Lab ID: CB16079-07 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - Beryllium - Total - - - - - - - - 0.233 - - - 3 - 1 - - - - 0.160 1.00 - - - - - NE - - - - ug/L - - - - - - - EPA 6010D Cadmium - Total 0.815 3 1 0.360 1.00 NE ug/L EPA 6010D cis-1,2-Dichloroethene 3.0 1 0.15 1.0 NE ug/L EPA 8260B Cobalt - Total 4.99 3 1 1.40 10.0 NE ug/L EPA 6010D Dichlorodifluoromethane 28 1 0.20 1.0 NE ug/L EPA 8260B Methylene chloride 0.63 J 1 0.23 1.0 NE ug/L EPA 8260B Tetrachloroethene 42 1 0.17 1.0 NE ug/L EPA 8260B Trichloroethene 8.4 1 0.15 1.0 NE ug/L EPA 8260B Vinyl chloride 4.6 1 0.32 1.0 NE ug/L EPA 8260B Zinc - Total 168 1 4.40 10.0 NE ug/L EPA 6010D lient ID: 9204-SW3 Lab ID: CB16079-08 jo Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes Barium - Total 36.8 1 1.10 10.0 NE ug/L EPA 6010D Beryllium - Total 0.199 3 1 0.160 1.00 NE ug/L EPA 6010D Cobalt - Total 1.40 3 1 1.40 10.0 NE ug/L EPA 6010D Lead - Total 4.32 J 1 3.10 10.0 NE ug/L EPA 6010D Vanadium - Total 10.6 1 1.40 10.0 NE ug/L EPA 6010D Zinc - Total 9.16 J 1 4.40 10.0 NE ug/L EPA 6010D lient ID: 9204-SW2 wLab ID: CB16079-09 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - - - - Barium - Total - - 78.9 1 1.10 10.0 - NE - - - - ug/L - - - - - - - EPA 6010D - - - - - Cobalt - Total 1.46 J 1 1.40 10.0 NE ug/L EPA 6010D Vanadium - Total 1.71 J 1 1.40 10.0 NE ug/L EPA 6010D lient ID: 9204-SW2 Lab ID: CB36079-09RE3 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - 1,4-Dioxane - - - - - - - - 2.0 - - - - 1 - - - - 1.2 2.0 - - - - - NE - - - - ug/L - - - - - - - EPA 8260C - - - - - lient ID: 9204-Duplicate Lab ID: CB16079-10 Analyte Results Flag DF MDL MRL NC SWSL Units Method Notes - - - - - - - - Barium - Total - - - - - 9.60 J 1 - - - - 1.10 - - - 10.0 - - - - - NE - - - - ug/L - - - - - - - EPA 6010D - - - - - Page 7 of 83 (� �C_o www.encolabs.com ANALYTICAL RESULTS Description: 9204-MWIR Lab Sample ID: CB16079-01 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 18:30 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte [CAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ft Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 21:44 REF 1,1,1-Trichloroethane [71-55-6] ^ 0.12 u ug/L 1 0.12 1.0 EPA 8260B 10/25/18 21:44 REF 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 u ug/L 1 0.28 1.0 EPA 8260B 10/25/18 21:44 REF 1,1,2-Trichloroethane [79-00-5] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/25/18 21:44 REF 1,1-Dichloroethane [75-34-3] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/25/18 21:44 REF 1,1-Dichloroethene [75-35-4] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/25/18 21:44 REF 1,2,3-Trichloropropane [96-18-4] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/25/18 21:44 REF 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 u ug/L 1 0.48 1.0 EPA 8260B 10/25/18 21:44 REF 1,2-Dibromoethane [106-93-4] ^ 0.66 u ug/L 1 0.66 1.0 EPA 8260B 10/25/18 21:44 REF 1,2-Dichlorobenzene [95-50-1] ^ 0.19 u ug/L 1 0.19 1.0 EPA 8260B 10/25/18 21:44 REF 1,2-Dichloroethane [107-06-2] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/25/18 21:44 REF 1,2-Dichloropropane [78-87-5] ^ 0.10 u ug/L 1 0.10 1.0 EPA 8260B 10/25/18 21:44 REF 1,4-Dichlorobenzene [106-46-7] ^ 0.19 u ug/L 1 0.19 1.0 EPA 8260B 10/25/18 21:44 REF 2-Butanone [78-93-3] ^ 1.3 u ug/L 1 1.3 5.0 EPA 8260B 10/25/18 21:44 REF 2-Hexanone [591-78-6] ^ 0.88 u ug/L 1 0.88 5.0 EPA 8260B 10/25/18 21:44 REF 4-Methyl-2-pentanone [108-10-1] ^ 1.1 u ug/L 1 1.1 5.0 EPA 8260B 10/25/18 21:44 REF Acetone [67-64-1] ^ 10 u ug/L 1 10 20 EPA 8260B 10/25/18 21:44 REF Acrylonitrile [107-13-1] ^ 3.5 u ug/L 1 3.5 10 EPA 8260B 10/25/18 21:44 REF Benzene [71-43-2] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/25/18 21:44 REF Bromochloromethane [74-97-5] ^ 0.48 u ug/L 1 0.48 1.0 EPA 8260B 10/25/18 21:44 REF Bromodichloromethane [75-27-4] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 21:44 REF Bromoform [75-25-2] ^ 0.22 u ug/L 1 0.22 1.0 EPA 8260B 10/25/18 21:44 REF Bromomethane [74-83-9] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/25/18 21:44 REF Carbon disulfide [75-15-0] ^ 1.5 u ug/L 1 1.5 5.0 EPA 8260B 10/25/18 21:44 REF Carbon tetrachloride [56-23-5] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 21:44 REF Chlorobenzene [108-90-7] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 21:44 REF Chloroethane [75-00-3] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/25/18 21:44 REF Chloroform [67-66-3] ^ 0.18 u ug/L 1 0.18 1.0 EPA 8260B 10/25/18 21:44 REF Chloromethane [74-87-3] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/25/18 21:44 REF cis-1,2-Dichloroethene [156-59-2] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/25/18 21:44 REF cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 u ug/L 1 0.20 1.0 EPA 8260B 10/25/18 21:44 REF Dibromochloromethane [124-48-1] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 21:44 REF Dibromomethane [74-95-3] ^ 0.27 u ug/L 1 0.27 1.0 EPA 8260B 10/25/18 21:44 REF Ethylbenzene [100-41-4] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/25/18 21:44 REF Iodomethane [74-88-4] ^ 1.7 u ug/L 1 1.7 5.0 EPA 8260B 10/25/18 21:44 REF Methylene chloride [75-09-2] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/25/18 21:44 REF Styrene [100-42-5] ^ 0.11 u ug/L 1 0.11 1.0 EPA 8260B 10/25/18 21:44 REF Tetrachloroethene [127-18-4] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 21:44 REF Toluene [108-88-3] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/25/18 21:44 REF trans-1,2-Dichloroethene [156-60-5] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/25/18 21:44 REF trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/25/18 21:44 REF trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 u ug/L 1 0.70 1.0 EPA 8260B 10/25/18 21:44 REF Trichloroethene [79-01-6] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/25/18 21:44 REF Trichlorofluoromethane [75-69-4] ^ 0.24 u ug/L 1 0.24 1.0 EPA 8260B 10/25/18 21:44 REF Vinyl acetate [108-05-4] ^ 0.95 u ug/L 1 0.95 5.0 EPA 8260B 10/25/18 21:44 REF Vinyl chloride [75-01-4] ^ 0.32 u ug/L 1 0.32 1.0 EPA 8260B 10/25/18 21:44 REF Xylenes(Total) [1330-20-7] ^ 0.45 u ug/L 1 0.45 3.0 EPA 8260B 10/25/18 21:44 REF Page 8 of 83 (� �Eo www.encolabs.com Description: 9204-MWlR Lab Sample ID: CB16079-01 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 18:30 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed By Notes Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-8mmofluorobenzene 44 1 50.0 89 % 53-136 8725018 EPA 82608 10125118 21:44 REF Dibromofluoromethane 45 1 50.0 91 % 67-129 8725018 EPA 82608 10125118 21:44 REF Toluene-d8 48 1 50.0 95 % 59-134 8725018 EPA 82608 10125118 21:44 REF Page 9 of 83 Description: 9204-MW 1 R Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-01 Sampled: 10/18/18 18:30 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte [CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 u ug/L 5 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 Barium [7440-39-3] ^ 10.0 ug/L 1 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 Chromium [7440-47-3] ^ 1.40 u ug/L 1 Cobalt [7440-48-4] ^ 1.40 u ug/L 1 Copper [7440-50-8] ^ 1.60 u ug/L 1 Lead [7439-92-1] ^ 3.10 u ug/L 1 Nickel [7440-02-0] ^ 2.20 u ug/L 1 Selenium [7782-49-2] ^ 4.55 u ug/L 5 Silver [7440-22-4] ^ 1.90 u ug/L 1 Thallium [7440-28-0] ^ 0.550 u ug/L 5 Vanadium [7440-62-2] ^ 2.92 ug/L 1 Zinc [7440-66-6] ^ 4.40 u ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 11:53 7.60 10.0 EPA 6010D 10/29/18 12:46 1.10 10.0 EPA 6010D 10/29/18 12:46 0.160 1.00 EPA 6010D 10/29/18 12:46 0.360 1.00 EPA 6010D 10/29/18 12:46 1.40 10.0 EPA 6010D 10/29/18 12:46 1.40 10.0 EPA 6010D 10/29/18 12:46 1.60 10.0 EPA 6010D 10/29/18 12:46 3.10 10.0 EPA 6010D 10/29/18 12:46 2.20 10.0 EPA 6010D 10/29/18 12:46 4.55 5.00 EPA 6020B 10/30/18 11:53 1.90 10.0 EPA 6010D 10/29/18 12:46 0.550 5.00 EPA 6020B 10/30/18 11:53 1.40 10.0 EPA 6010D 10/29/18 12:46 4.40 10.0 EPA 6010D 10/29/18 12:46 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 10 of 83 (� 0a www.encolabs.com Description: 9204-MWIR Lab Sample ID: CB16079-01 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 18:30 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 u ug/L 1 1.2 2.0 EPA 8260C 10/31/18 04:17 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.6 1 5.00 93 % 75-125 8J30030 EPA 8260C 10131116 04:17 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 11 of 83 (� �C_o www.encolabs.com Description: 9204-MW5 Lab Sample ID: CB16079-02 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 12:00 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:17 REF 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/25/18 22:17 REF 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/25/18 22:17 REF 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 22:17 REF 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 22:17 REF 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 22:17 REF 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 22:17 REF 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/25/18 22:17 REF 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/25/18 22:17 REF 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/25/18 22:17 REF 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 22:17 REF 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/25/18 22:17 REF 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/25/18 22:17 REF 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/25/18 22:17 REF 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/25/18 22:17 REF 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/25/18 22:17 REF Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/25/18 22:17 REF Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/25/18 22:17 REF Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:17 REF Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/25/18 22:17 REF Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:17 REF Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/25/18 22:17 REF Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 22:17 REF Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/25/18 22:17 REF Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:17 REF Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:17 REF Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 22:17 REF Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/25/18 22:17 REF Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 22:17 REF cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:17 REF cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/25/18 22:17 REF Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:17 REF Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/25/18 22:17 REF Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 22:17 REF Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/25/18 22:17 REF Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 22:17 REF Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/25/18 22:17 REF Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:17 REF Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 22:17 REF trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 22:17 REF trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:17 REF trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/25/18 22:17 REF Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:17 REF Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/25/18 22:17 REF Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/25/18 22:17 REF Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/25/18 22:17 REF Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/25/18 22:17 REF Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 8J25018 EPA 8160E 10125118 22:17 REF Dibromofluoromethane 46 1 50.0 92 % 67-129 8J25018 EPA 8260E 10125118 22:17 REF Page 12 of 83 (� 0a www.encolabs.com Description: 9204-MW5 Lab Sample ID: CB16079-02 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 12:00 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 46 1 50.0 93 % 59-134 8J25018 EPA 82603 10125116 22:17 REF Page 13 of 83 Description: 9204-M W 5 Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-02 Sampled: 10/18/18 12:00 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte [CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 u ug/L 5 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 Barium [7440-39-3] ^ 34.3 ug/L 1 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 Chromium [7440-47-3] ^ 1.40 u ug/L 1 Cobalt [7440-48-4] ^ 1.40 u ug/L 1 Copper [7440-50-8] ^ 1.60 u ug/L 1 Lead [7439-92-1] ^ 3.10 u ug/L 1 Nickel [7440-02-0] ^ 2.20 u ug/L 1 Selenium [7782-49-2] ^ 4.55 u ug/L 5 Silver [7440-22-4] ^ 1.90 u ug/L 1 Thallium [7440-28-0] ^ 0.550 u ug/L 5 Vanadium [7440-62-2] ^ 4.20 ug/L 1 Zinc [7440-66-6] ^ 4.40 u ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 11:57 7.60 10.0 EPA 6010D 10/29/18 13:20 1.10 10.0 EPA 6010D 10/29/18 13:20 0.160 1.00 EPA 6010D 10/29/18 13:20 0.360 1.00 EPA 6010D 10/29/18 13:20 1.40 10.0 EPA 6010D 10/29/18 13:20 1.40 10.0 EPA 6010D 10/29/18 13:20 1.60 10.0 EPA 6010D 10/29/18 13:20 3.10 10.0 EPA 6010D 10/29/18 13:20 2.20 10.0 EPA 6010D 10/29/18 13:20 4.55 5.00 EPA 6020B 10/30/18 11:57 1.90 10.0 EPA 6010D 10/29/18 13:20 0.550 5.00 EPA 6020B 10/30/18 11:57 1.40 10.0 EPA 6010D 10/29/18 13:20 4.40 10.0 EPA 6010D 10/29/18 13:20 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 14 of 83 Description: 9204-M W 5 Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-02 Sampled: 10/18/18 12:00 Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 Results Flaa Units DF MDL MRL NC SWSL Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 EPA 8260C 10/31/18 04:54 KKW Results DF Spike L vl %Rec % Rec Limits Batch Method Analyzed By Notes 4.5 1 5.00 90 % 75-125 8.730030 EPA 8260C 10131118 04:54 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 of 83 (� �C_o www.encolabs.com Description: 9204-MW6 Lab Sample ID: CB16079-03 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 11:20 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] 0.78 ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:49 REF 1,1,1-Trichlorcethane [71-55-6] ^ 0.12 u ug/L 1 0.12 1.0 EPA 8260B 10/25/18 22:49 REF 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 u ug/L 1 0.28 1.0 EPA 8260B 10/25/18 22:49 REF 1,1,2-Trichlorcethane [79-00-5] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/25/18 22:49 REF 1,1-Dichloroethane [75-34-3] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/25/18 22:49 REF 1,1-Dichloroethene [75-35-4] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/25/18 22:49 REF 1,2,3-Trichloropropane [96-18-4] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/25/18 22:49 REF 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 u ug/L 1 0.48 1.0 EPA 8260B 10/25/18 22:49 REF 1,2-Dibromoethane [106-93-4] ^ 0.66 u ug/L 1 0.66 1.0 EPA 8260B 10/25/18 22:49 REF 1,2-Dichlorobenzene [95-50-1] ^ 0.19 u ug/L 1 0.19 1.0 EPA 8260B 10/25/18 22:49 REF 1,2-Dichloroethane [107-06-2] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/25/18 22:49 REF 1,2-Dichloropropane [78-87-5] ^ 0.10 u ug/L 1 0.10 1.0 EPA 8260B 10/25/18 22:49 REF 1,4-Dichlorobenzene [106-46-7] ^ 0.19 u ug/L 1 0.19 1.0 EPA 8260B 10/25/18 22:49 REF 2-Butanone [78-93-3] ^ 1.3 u ug/L 1 1.3 5.0 EPA 8260B 10/25/18 22:49 REF 2-Hexanone [591-78-6] ^ 0.88 u ug/L 1 0.88 5.0 EPA 8260B 10/25/18 22:49 REF 4-Methyl-2-pentanone [108-10-1] ^ 1.1 u ug/L 1 1.1 5.0 EPA 8260B 10/25/18 22:49 REF Acetone [67-64-1] ^ 10 u ug/L 1 10 20 EPA 8260B 10/25/18 22:49 REF Acrylonitrile [107-13-1] ^ 3.5 u ug/L 1 3.5 10 EPA 8260B 10/25/18 22:49 REF Benzene [71-43-2] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:49 REF Bromochloromethane [74-97-5] ^ 0.48 u ug/L 1 0.48 1.0 EPA 8260B 10/25/18 22:49 REF Bromodichloromethane [75-27-4] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:49 REF Bromoform [75-25-2] ^ 0.22 u ug/L 1 0.22 1.0 EPA 8260B 10/25/18 22:49 REF Bromomethane [74-83-9] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/25/18 22:49 REF Carbon disulfide [75-15-0] ^ 1.5 u ug/L 1 1.5 5.0 EPA 8260B 10/25/18 22:49 REF Carbon tetrachloride [56-23-5] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:49 REF Chlorobenzene [108-90-7] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:49 REF Chloroethane [75-00-3] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/25/18 22:49 REF Chloroform [67-66-3] ^ 0.18 u ug/L 1 0.18 1.0 EPA 8260B 10/25/18 22:49 REF Chloromethane [74-87-3] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/25/18 22:49 REF cis-1,2-Dichloroethene [156-59-2] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:49 REF cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 u ug/L 1 0.20 1.0 EPA 8260B 10/25/18 22:49 REF Dibromochloromethane [124-48-1] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:49 REF Dibromomethane [74-95-3] ^ 1.9 ug/L 1 0.27 1.0 EPA 8260B 10/25/18 22:49 REF Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 22:49 REF Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/25/18 22:49 REF Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 22:49 REF Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/25/18 22:49 REF Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 22:49 REF Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 22:49 REF trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 22:49 REF trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:49 REF trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/25/18 22:49 REF Trichlorcethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 22:49 REF Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/25/18 22:49 REF Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/25/18 22:49 REF Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/25/18 22:49 REF Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/25/18 22:49 REF Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 8725018 EPA 8260E 10125118 22:49 REF Dibromofluoromethane 45 1 50.0 90 % 67-129 8725018 EPA 8160E 10125118 22:49 REF Page 16 of 83 (� 0a www.encolabs.com Description: 9204-MW6 Lab Sample ID: CB16079-03 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 11:20 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 47 1 50.0 95 % 59-134 8J25018 EPA 82603 10125116 22:49 REF Page 17 of 83 Description: 9204-M W 6 Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-03 Sampled: 10/18/18 11:20 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte [CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 u ug/L 5 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 Barium [7440-39-3] ^ 38.3 ug/L 1 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 Chromium [7440-47-3] ^ 1.40 u ug/L 1 Cobalt [7440-48-4] ^ 1.40 u ug/L 1 Copper [7440-50-8] ^ 1.60 u ug/L 1 Lead [7439-92-1] ^ 3.10 u ug/L 1 Nickel [7440-02-0] ^ 2.20 u ug/L 1 Selenium [7782-49-2] ^ 4.55 u ug/L 5 Silver [7440-22-4] ^ 1.90 u ug/L 1 Thallium [7440-28-0] ^ 0.550 u ug/L 5 Vanadium [7440-62-2] ^ 6.76 ug/L 1 Zinc [7440-66-6] ^ 4.40 u ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 12:01 7.60 10.0 EPA 6010D 10/29/18 13:23 1.10 10.0 EPA 6010D 10/29/18 13:23 0.160 1.00 EPA 6010D 10/29/18 13:23 0.360 1.00 EPA 6010D 10/29/18 13:23 1.40 10.0 EPA 6010D 10/29/18 13:23 1.40 10.0 EPA 6010D 10/29/18 13:23 1.60 10.0 EPA 6010D 10/29/18 13:23 3.10 10.0 EPA 6010D 10/29/18 13:23 2.20 10.0 EPA 6010D 10/29/18 13:23 4.55 5.00 EPA 6020B 10/30/18 12:01 1.90 10.0 EPA 6010D 10/29/18 13:23 0.550 5.00 EPA 6020B 10/30/18 12:01 1.40 10.0 EPA 6010D 10/29/18 13:23 4.40 10.0 EPA 6010D 10/29/18 13:23 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 18 of 83 Description: 9204-M W 6 Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-03 Sampled: 10/18/18 11:20 Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 Results Flaa Units DF MDL MRL NC SWSL Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 EPA 8260C 10/31/18 17:02 KKW Results DF Spike L vl %Rec % Rec Limits Batch Method Analyzed By Notes 4.7 1 5.00 94 % 75-125 8381025 EPA 8260C 10/31/18 17:02 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 19 of 83 (� �C_o www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:21 REF 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/25/18 23:21 REF 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/25/18 23:21 REF 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:21 REF 1,1-Dichloroethane [75-34-3] ^ 2.0 ug/L 1 0.13 1.0 EPA 8260B 10/25/18 23:21 REF 1,1-Dichloroethene [75-35-4] ^ 0.45 ug/L 1 0.21 1.0 EPA 8260B 10/25/18 23:21 REF 1,1-Dichloropropene [563-58-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:21 REF 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 23:21 REF 1,2,4-Trichlorobenzene [120-82-1] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:21 REF 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/25/18 23:21 REF 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/25/18 23:21 REF 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/25/18 23:21 REF 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 23:21 REF 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/25/18 23:21 REF 1,3-Dichlorobenzene [541-73-1] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:21 REF 1,3-Dichloropropane [142-28-9] ^ 0.16 U ug/L 1 0.16 1.0 EPA 8260B 10/25/18 23:21 REF 1,4-Dichlorobenzene [106-46-7] ^ 1.1 ug/L 1 0.19 1.0 EPA 8260B 10/25/18 23:21 REF 2,2-Dichloropropane [594-20-7] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/25/18 23:21 REF 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/25/18 23:21 REF 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/25/18 23:21 REF 3-Chloropropene [107-05-1] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/25/18 23:21 REF 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/25/18 23:21 REF Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/25/18 23:21 REF Acetonitrile [75-05-8] ^ 5.0 U ug/L 1 5.0 10 EPA 8260B 10/25/18 23:21 REF Acrolein [107-02-8] ^ 4.0 U ug/L 1 4.0 10 EPA 8260B 10/25/18 23:21 REF Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/25/18 23:21 REF Benzene [71-43-2] ^ 4.8 ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:21 REF Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/25/18 23:21 REF Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:21 REF Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/25/18 23:21 REF Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:21 REF Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/25/18 23:21 REF Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:21 REF Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:21 REF Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 23:21 REF Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/25/18 23:21 REF Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 23:21 REF Chloroprene [126-99-8] ^ 0.64 U ug/L 1 0.64 1.0 EPA 8260B 10/25/18 23:21 REF cis-1,2-Dichloroethene [156-59-2] ^ 24 ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:21 REF cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/25/18 23:21 REF Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:21 REF Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/25/18 23:21 REF Dichlorodifluoromethane [75-71-8] ^ 5.8 ug/L 1 0.20 1.0 EPA 8260B 10/25/18 23:21 REF Ethyl Methacrylate [97-63-2] ^ 0.38 U ug/L 1 0.38 1.0 EPA 8260B 10/25/18 23:21 REF Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 23:21 REF Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/25/18 23:21 REF Isobutyl alcohol [78-83-1] ^ 11 U ug/L 1 11 50 EPA 8260B 10/25/18 23:21 REF Methacrylonitrile [126-98-7] ^ 4.9 U ug/L 1 4.9 10 EPA 8260B 10/25/18 23:21 REF Methyl Methacrylate [80-62-6] ^ 0.51 U ug/L 1 0.51 1.0 EPA 8260B 10/25/18 23:21 REF Methylene chloride [75-09-2] ^ 2.1 ug/L 1 0.23 1.0 EPA 8260B 10/25/18 23:21 REF Naphthalene [91-20-3] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/25/18 23:21 REF Page 20 of 83 (� �C_o www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed Ay Notes Propionitrile [107-12-0] ^ 5.0 U ug/L 1 5.0 10 EPA 8260B 10/25/18 23:21 REF Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/25/18 23:21 REF Tetrachloroethene [127-18-4] ^ 52 ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:21 REF Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:21 REF trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 23:21 REF trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:21 REF trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/25/18 23:21 REF Trichloroethene [79-01-6] ^ 1s ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:21 REF Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/25/18 23:21 REF Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/25/18 23:21 REF Vinyl chloride [75-01-4] ^ 4.8 ug/L 1 0.32 1.0 EPA 8260B 10/25/18 23:21 REF Xylenes (Total) [1330-20-7] ^ 2.2 ug/L 1 0.45 3.0 EPA 8260B 10/25/18 23:21 REF Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 8725018 EPA 8160E 10125118 23:21 REF Dibromofluoromethane 45 1 50.0 90 % 67-129 8725018 EPA 8260E 10125118 23:21 REF Toluene-d8 47 1 50.0 9496 59-134 8725018 EPA 8260E 10125118 23:21 REF Page 21 of 83 (� �C_o www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed Ay Notes 1,2,4,5-Tetrachlorobenzene [95-94-3] ^ 3.4 U ug/L 1 3.4 10 EPA 8270D 10/30/18 20:36 DFM 1,3,5-Trinitrobenzene [99-35-4] ^ 3.0 U ug/L 1 3.0 10 EPA 8270D 10/30/18 20:36 DFM 1,3-Dinitrobenzene [99-65-0] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM 1,4-Naphthoquinone [130-15-4] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM 1,4-Phenylenediamine [106-50-3] ^ 4.0 U ug/L 1 4.0 10 EPA 8270D 10/30/18 20:36 DFM QV-02 1-Naphthylamine [134-32-7] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM 2,3,4,6-Tetrachlorophenol [58-90-2] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM 2,4,5-Trichlorophenol [95-95-4] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM 2,4,6-Trichlorophenol [88-06-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM 2,4-Dichlorophenol [120-83-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM 2,4-Dimethylphenol [105-67-9] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/30/18 20:36 DFM 2,4-Dinitrophenol [51-28-5] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM QV-01 2,4-Dinitrotoluene [121-14-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM 2,6-Dichlorophenol [87-65-0] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/30/18 20:36 DFM 2,6-Dinitrotoluene [606-20-2] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM 2-Acetylaminofluorene [53-96-3] ^ 3.1 U ug/L 1 3.1 10 EPA 8270D 10/30/18 20:36 DFM 2-Chloronaphthalene [91-58-7] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/30/18 20:36 DFM 2-Chlorophenol [95-57-8] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM 2-Methyl-4,6-dinitrophenol [534-52-1] ^ 3.3 U ug/L 1 3.3 10 EPA 8270D 10/30/18 20:36 DFM 2-Methylnaphthalene [91-57-6] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/30/18 20:36 DFM 2-Methylphenol [95-48-7] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/30/18 20:36 DFM 2-Naphthylamine [91-59-8] ^ 3.0 U ug/L 1 3.0 10 EPA 8270D 10/30/18 20:36 DFM 2-Nitroaniline [88-74-4] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM 2-Nitrophenol [88-75-5] ^ 1.1 U ug/L 1 1.1 10 EPA 8270D 10/30/18 20:36 DFM 3 & 4-Methylphenol [108-39-4/106-44-5] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/30/18 20:36 DFM 3,3'-Dichlorobenzidine [91-94-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8270D 10/30/18 20:36 DFM 3,3'-Dimethylbenzidine [119-93-7] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM 3-Methylcholanthrene [56-49-5] ^ 1.3 U ug/L 1 1.3 10 EPA 8270D 10/30/18 20:36 DFM 3-Nitroaniline [99-09-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM QV-02 4-Aminobiphenyl [92-67-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8270D 10/30/18 20:36 DFM 4-Bromophenyl-phenylether [101-55-3] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM 4-Chloro-3-methylphenol [59-50-7] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM 4-Chloroaniline [106-47-8] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/30/18 20:36 DFM 4-Chlorophenyl-phenylether [7005-72-3] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM 4-Nitroaniline [100-01-6] ^ 3.2 U ug/L 1 3.2 10 EPA 8270D 10/30/18 20:36 DFM 4-Nitrophenol [100-02-7] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/30/18 20:36 DFM 5-Nitro-o-toluidine [99-55-8] ^ 3.2 U ug/L 1 3.2 10 EPA 8270D 10/30/18 20:36 DFM 7,12-Dimethylbenz(a)anthracene [57-97-6] 1.4 U ug/L 1 1.4 10 EPA 8270D 10/30/18 20:36 DFM Acenaphthene [83-32-9] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/30/18 20:36 DFM Acenaphthylene [208-96-8] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM Acetophenone [98-86-2] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/30/18 20:36 DFM Anthracene [120-12-7] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Benzo(a)anthracene [56-55-3] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Benzo(a)pyrene [50-32-8] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Benzo(b)fluoranthene [205-99-2] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/30/18 20:36 DFM Benzo(g,h,i)perylene [191-24-2] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Benzo(k)fluoranthene [207-08-9] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Benzyl alcohol [100-51-6] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Bis(2-chloroethoxy)methane [111-91-1] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Bis(2-chloroethyl)ether [111-44-4] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM Bis(2-chloroisopropyl)ether [108-60-1] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM Page 22 of 83 (� �C_o www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed Ay Notes Bis(2-ethylhexyl)phthalate [117-81-7] ^ 1.9 U ug/L 1 1.9 5.0 EPA 8270D 10/30/18 20:36 DFM Butylbenzylphthalate [85-68-7] ^ 3.8 U ug/L 1 3.8 10 EPA 8270D 10/30/18 20:36 DFM QV-01 Chlorobenzilate [510-15-6] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Chrysene [218-01-9] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Diallate [2303-16-4] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/30/18 20:36 DFM Dibenzo(a,h)anthracene [53-70-3] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/30/18 20:36 DFM Dibenzofuran [132-64-9] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM Diethylphthalate [84-66-2] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/30/18 20:36 DFM Dimethoate [60-51-5] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/30/18 20:36 DFM Dimethylphthalate [131-11-3] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM Di-n-butylphthalate [84-74-2] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/30/18 20:36 DFM Di-n-octylphthalate [117-84-0] ^ 3.1 U ug/L 1 3.1 10 EPA 8270D 10/30/18 20:36 DFM Disulfoton [298-04-4] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/30/18 20:36 DFM Ethyl methanesulfonate [62-50-0] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Famphur [52-85-7] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/30/18 20:36 DFM Fluoranthene [206-44-0] ^ 3.1 U ug/L 1 3.1 10 EPA 8270D 10/30/18 20:36 DFM Fluorene [86-73-7] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM Hexachlorobenzene [118-74-1] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/30/18 20:36 DFM Hexachlorobutadiene [87-68-3] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/30/18 20:36 DFM Hexachlorocyclopentadiene [77-47-4] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/30/18 20:36 DFM Hexachloroethane [67-72-1] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM Hexachloropropene [1888-71-7] ^ 6.8 U ug/L 1 6.8 10 EPA 8270D 10/30/18 20:36 DFM Indeno(1,2,3-cd)pyrene [193-39-5] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Isodrin [465-73-6] ^ 1.5 U ug/L 1 1.5 10 EPA 8270D 10/30/18 20:36 DFM Isophorone [78-59-1] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM Isosafrole [120-58-1] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Kepone [143-50-0] ^ 7.2 U ug/L 1 7.2 20 EPA 8270D 10/30/18 20:36 DFM Methapyrilene [91-80-5] ^ 4.8 U ug/L 1 4.8 10 EPA 8270D 10/30/18 20:36 DFM Methyl Methanesulfonate [66-27-3] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Methyl parathion [298-00-0] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM Nitrobenzene [98-95-3] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM N-Nitrosodiethylamine [55-18-5] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/30/18 20:36 DFM N-Nitrosodimethylamine [62-75-9] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/30/18 20:36 DFM N-Nitrosodi-n-butylamine [924-16-3] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/30/18 20:36 DFM N-Nitroso-di-n-propylamine [621-64-7] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/30/18 20:36 DFM N-nitrosodiphenylamine/Diphenylamine 2.5 U ug/L 1 2.5 10 EPA 8270D 10/30/18 20:36 DFM [86-30-6/122-39-4] ^ N-Nitrosomethylethylamine [10595-95-6] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/30/18 20:36 DFM N-Nitrosopiperidine [100-75-4] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/30/18 20:36 DFM N-Nitrosopyrrolidine [930-55-2] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/30/18 20:36 DFM 0,0,0-Triethyl phosphorothioate [126-68-1] 2.2 U ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM o-Toluidine [95-53-4] ^ 1.6 U ug/L 1 1.6 10 EPA 8270D 10/30/18 20:36 DFM Parathion [56-38-2] ^ 1.7 U ug/L 1 1.7 10 EPA 8270D 10/30/18 20:36 DFM p-Dimethylaminoazobenzene [60-11-7] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM Pentachlorobenzene [608-93-5] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/30/18 20:36 DFM Pentachloronitrobenzene [82-68-8] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/30/18 20:36 DFM Phenacetin [62-44-2] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/30/18 20:36 DFM Phenanthrene [85-01-8] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/30/18 20:36 DFM Phenol [108-95-2] ^ 1.7 U ug/L 1 1.7 10 EPA 8270D 10/30/18 20:36 DFM Phorate [298-02-2] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/30/18 20:36 DFM Pronamide [23950-58-5] ^ 1.7 U ug/L 1 1.7 10 EPA 8270D 10/30/18 20:36 DFM Page 23 of 83 (� �C_o www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Semivolatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed gy Notes Pyrene [129-00-0] ^ 3.5 u ug/L 1 3.5 10 EPA 8270D 10/30/18 20:36 DFM Safrole [94-59-7] ^ 2.2 u ug/L 1 2.2 10 EPA 8270D 10/30/18 20:36 DFM Thionazin [297-97-2] ^ 2.3 u ug/L 1 2.3 10 EPA 8270D 10/30/18 20:36 DFM Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 2,4,6-Tribromophenol 89 1 100 89 % 10-179 8723001 EPA 8270D 10130118 20:36 DFM 2-Fluombipheny4 47 1 50.0 9496 10-149 8723001 EPA 8270D 10130118 20:36 DFM 2-Fluomphenol 56 1 100 56 % 10-110 8723001 EPA 8270D 10130118 20:36 DFM Nitrobenzene-d5 41 1 50.0 8291. 10-149 8723001 EPA 8270D 10130118 20:36 DFM Phenol-d5 46 1 100 46 % 10-88 8723001 EPA 8270D 10130118 2036 DFM Terphen)4-d14 63 1 50.0 126 % 10-188 8723001 EPA 8270D 10130118 20:36 DFM J-04 Page 24 of 83 (� 0a www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Metals by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certlNed analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Mercury [7439-97-61 A 0.150 u ug/L 1 0.150 0.200 EPA 7470A 11/02/18 14:06 NMN Page 25 of 83 (� �C_o www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results FlaO Units DF MDL MRL NC SWSL Method Analyzed Antimony [7440-36-0] ^ 1.85 U ug/L 5 1.85 5.00 EPA 6020B 10/30/18 12:06 Arsenic [7440-38-2] ^ 7.60 U ug/L 1 7.60 10.0 EPA 6010D 10/29/18 13:25 Barium [7440-39-3] ^ 89.4 ug/L 1 1.10 10.0 EPA 6010D 10/29/18 13:25 Beryllium [7440-41-7] ^ 0.271 ug/L 1 0.160 1.00 EPA 6010D 10/29/18 13:25 Cadmium [7440-43-9] ^ 0.360 U ug/L 1 0.360 1.00 EPA 6010D 10/29/18 13:25 Chromium [7440-47-3] ^ 1.40 U ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:25 Cobalt [7440-48-4] ^ 4.20 ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:25 Copper [7440-50-8] ^ 1.60 U ug/L 1 1.60 10.0 EPA 6010D 10/29/18 13:25 Lead [7439-92-1] ^ 3.10 U ug/L 1 3.10 10.0 EPA 6010D 10/29/18 13:25 Nickel [7440-02-0] ^ 2.20 U ug/L 1 2.20 10.0 EPA 6010D 10/29/18 13:25 Selenium [7782-49-2] ^ 4.55 U ug/L 5 4.55 5.00 EPA 6020B 10/30/18 12:06 Silver [7440-22-4] ^ 1.90 U ug/L 1 1.90 10.0 EPA 6010D 10/29/18 13:25 Thallium [7440-28-0] ^ 0.550 U ug/L 5 0.550 5.00 EPA 6020B 10/30/18 12:06 Tin [7440-31-5] ^ 2.90 U ug/L 1 2.90 10.0 EPA 6010D 10/29/18 13:25 Vanadium [7440-62-2] ^ 1.40 U ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:25 Zinc [7440-66-6] ^ 11.1 ug/L 1 4.40 10.0 EPA 6010D 10/29/18 13:25 By Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH JDH Page 26 of 83 (� 0a www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Classical Chemistry Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certlNed analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Cyanide (total) [57-12-5] ^ 0.0049 u mg/L 1 0.0049 0.010 EPA 9014 10/30/18 18:03 JLI Sulfide [18496-25-8] ^ 0.010 u mg/L 1 0.010 0.10 SM 4500S2 10/22/18 18:20 Joc D-2011 Page 27 of 83 (� 0a www.encolabs.com Description: 9204-MW8 Lab Sample ID: CB16079-04 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 14:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 u ug/L 1 1.2 2.0 EPA 8260C 10/31/18 17:38 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 5.3 1 5.00 106 % 75-125 8J31025 EPA 8260C 10131116 17:38 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 28 of 83 (� �C_o www.encolabs.com Description: 9204-MW9 Lab Sample ID: CB16079-05 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 10:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:53 REF 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/25/18 23:53 REF 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/25/18 23:53 REF 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:53 REF 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 23:53 REF 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 23:53 REF 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 23:53 REF 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/25/18 23:53 REF 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/25/18 23:53 REF 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/25/18 23:53 REF 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 23:53 REF 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/25/18 23:53 REF 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/25/18 23:53 REF 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/25/18 23:53 REF 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/25/18 23:53 REF 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/25/18 23:53 REF Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/25/18 23:53 REF Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/25/18 23:53 REF Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:53 REF Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/25/18 23:53 REF Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:53 REF Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/25/18 23:53 REF Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:53 REF Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/25/18 23:53 REF Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:53 REF Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:53 REF Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 23:53 REF Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/25/18 23:53 REF Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 23:53 REF cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:53 REF cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/25/18 23:53 REF Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:53 REF Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/25/18 23:53 REF Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/25/18 23:53 REF Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/25/18 23:53 REF Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/25/18 23:53 REF Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/25/18 23:53 REF Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/25/18 23:53 REF Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/25/18 23:53 REF trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/25/18 23:53 REF trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:53 REF trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/25/18 23:53 REF Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/25/18 23:53 REF Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/25/18 23:53 REF Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/25/18 23:53 REF Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/25/18 23:53 REF Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/25/18 23:53 REF Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 8725018 EPA 8260E 10125118 23:53 REF Dibromofluoromethane 45 1 50.0 89 % 67-129 8725018 EPA 8260E 10125118 23:53 REF Page 29 of 83 (� 0a www.encolabs.com Description: 9204-MW9 Lab Sample ID: CB16079-05 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 10:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 47 1 50.0 95 % 59-134 8J25018 EPA 82603 10125116 23:53 REF Page 30 of 83 Description: 9204-M W9 Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-05 Sampled: 10/18/18 10:45 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte [CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 u ug/L 5 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 Barium [7440-39-3] ^ 25.8 ug/L 1 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 Chromium [7440-47-3] ^ 1.40 u ug/L 1 Cobalt [7440-48-4] ^ 2.50 ug/L 1 Copper [7440-50-8] ^ 1.60 U ug/L 1 Lead [7439-92-1] ^ 3.10 U ug/L 1 Nickel [7440-02-0] ^ 2.20 U ug/L 1 Selenium [7782-49-2] ^ 4.55 U ug/L 5 Silver [7440-22-4] ^ 1.90 U ug/L 1 Thallium [7440-28-0] ^ 0.550 U ug/L 5 Vanadium [7440-62-2] ^ 1.40 U ug/L 1 Zinc [7440-66-6] ^ 7.24 ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 12:10 7.60 10.0 EPA 6010D 10/29/18 13:27 1.10 10.0 EPA 6010D 10/29/18 13:27 0.160 1.00 EPA 6010D 10/29/18 13:27 0.360 1.00 EPA 6010D 10/29/18 13:27 1.40 10.0 EPA 6010D 10/29/18 13:27 1.40 10.0 EPA 6010D 10/29/18 13:27 1.60 10.0 EPA 6010D 10/29/18 13:27 3.10 10.0 EPA 6010D 10/29/18 13:27 2.20 10.0 EPA 6010D 10/29/18 13:27 4.55 5.00 EPA 6020B 10/30/18 12:10 1.90 10.0 EPA 6010D 10/29/18 13:27 0.550 5.00 EPA 6020B 10/30/18 12:10 1.40 10.0 EPA 6010D 10/29/18 13:27 4.40 10.0 EPA 6010D 10/29/18 13:27 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 31 of 83 (� 0a www.encolabs.com Description: 9204-MW9 Lab Sample ID: CB16079-05 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 10:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 u ug/L 1 1.2 2.0 EPA 8260C 10/31/18 18:14 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.8 1 5.00 97 % 75-125 8J31025 EPA 8260C 10131116 16:14 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 32 of 83 (� �C_o www.encolabs.com Description: 9204-DW1 Lab Sample ID: CB16079-06 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 15:05 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 13:31 REF 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/26/18 13:31 REF 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 13:31 REF 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 13:31 REF 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 13:31 REF 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 13:31 REF 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 13:31 REF 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 13:31 REF 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/26/18 13:31 REF 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 13:31 REF 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 13:31 REF 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/26/18 13:31 REF 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 13:31 REF 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/26/18 13:31 REF 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/26/18 13:31 REF 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/26/18 13:31 REF Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/26/18 13:31 REF Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/26/18 13:31 REF Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 13:31 REF Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 13:31 REF Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 13:31 REF Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/26/18 13:31 REF Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 13:31 REF Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/26/18 13:31 REF Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 13:31 REF Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 13:31 REF Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 13:31 REF Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/26/18 13:31 REF Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 13:31 REF cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 13:31 REF cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/26/18 13:31 REF Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 13:31 REF Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/26/18 13:31 REF Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 13:31 REF Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/26/18 13:31 REF Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 13:31 REF Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 13:31 REF Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 13:31 REF Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 13:31 REF trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 13:31 REF trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 13:31 REF trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/26/18 13:31 REF Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 13:31 REF Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/26/18 13:31 REF Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/26/18 13:31 REF Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/26/18 13:31 REF Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/26/18 13:31 REF Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 8725036 EPA 82608 1012611813:31 REF Dibromofluoromethane 45 1 50.0 90 % 67-129 8725036 EPA 82608 10126118 13:31 REF Page 33 of 83 (� 0a www.encolabs.com Description: 9204-DWI Lab Sample ID: CB16079-06 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 15:05 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 48 1 50.0 96 % 59-134 8J25036 EPA 82603 10/26/18 13.,31 REF Page 34 of 83 (� �C_o www.encolabs.com Description: 9204-DW1 Lab Sample ID: CB16079-06 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 15:05 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed Antimony [7440-36-0] ^ 1.85 u ug/L 5 1.85 5.00 EPA 6020B 10/30/18 12:14 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 7.60 10.0 EPA 6010D 10/29/18 13:30 Barium [7440-39-3] ^ 9.76 ug/L 1 1.10 10.0 EPA 6010D 10/29/18 13:30 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 0.160 1.00 EPA 6010D 10/29/18 13:30 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 0.360 1.00 EPA 6010D 10/29/18 13:30 Chromium [7440-47-3] ^ 1.40 u ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:30 Cobalt [7440-48-4] ^ 1.40 u ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:30 Copper [7440-50-8] ^ 1.60 u ug/L 1 1.60 10.0 EPA 6010D 10/29/18 13:30 Lead [7439-92-1] ^ 3.10 u ug/L 1 3.10 10.0 EPA 6010D 10/29/18 13:30 Nickel [7440-02-0] ^ 2.20 u ug/L 1 2.20 10.0 EPA 6010D 10/29/18 13:30 Selenium [7782-49-2] ^ 4.55 u ug/L 5 4.55 5.00 EPA 6020B 10/30/18 12:14 Silver [7440-22-4] ^ 1.90 u ug/L 1 1.90 10.0 EPA 6010D 10/29/18 13:30 Thallium [7440-28-0] ^ 0.550 u ug/L 5 0.550 5.00 EPA 6020B 10/30/18 12:14 Vanadium [7440-62-2] ^ 1.50 ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:30 Zinc [7440-66-6] ^ 4.40 u ug/L 1 4.40 10.0 EPA 6010D 10/29/18 13:30 By Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 35 of 83 (� �C_o www.encolabs.com Description: 9204-DW1 Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-06 Sampled: 10/18/18 15:05 Sampled By: Bob Bryant Received: 10/19/18 19:05 Work Order: CB16079 Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - Analyte MAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed Notes 1,4-Dioxane [123-91-1] 1.2 U ug/L 1 1.2 2.0 EPA 8260C 10/31/18 18:51 KKW Surrogates Results DF Spike L vl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-& 4.7 1 5.00 94 % 75-125 8.731025 EPA 8260C 10/31/18 18:51 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 36 of 83 (� �C_o www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:14 ref 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/26/18 02:14 ref 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 02:14 ref 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:14 ref 1,1-Dichloroethane [75-34-3] ^ 2.3 ug/L 1 0.13 1.0 EPA 8260B 10/26/18 02:14 ref 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 02:14 ref 1,1-Dichloropropene [563-58-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:14 ref 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 02:14 ref 1,2,4-Trichlorobenzene [120-82-1] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:14 ref 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 02:14 ref 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/26/18 02:14 ref 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 02:14 ref 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 02:14 ref 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/26/18 02:14 ref 1,3-Dichlorobenzene [541-73-1] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:14 ref 1,3-Dichloropropane [142-28-9] ^ 0.16 U ug/L 1 0.16 1.0 EPA 8260B 10/26/18 02:14 ref 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 02:14 ref 2,2-Dichloropropane [594-20-7] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 02:14 ref 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/26/18 02:14 ref 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/26/18 02:14 ref 3-Chloropropene [107-05-1] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 02:14 ref 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/26/18 02:14 ref Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/26/18 02:14 ref Acetonitrile [75-05-8] ^ 5.0 U ug/L 1 5.0 10 EPA 8260B 10/26/18 02:14 ref Acrolein [107-02-8] ^ 4.0 U ug/L 1 4.0 10 EPA 8260B 10/26/18 02:14 ref Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/26/18 02:14 ref Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:14 ref Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 02:14 ref Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:14 ref Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/26/18 02:14 ref Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:14 ref Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/26/18 02:14 ref Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:14 ref Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:14 ref Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 02:14 ref Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/26/18 02:14 ref Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 02:14 ref Chloroprene [126-99-8] ^ 0.64 U ug/L 1 0.64 1.0 EPA 8260B 10/26/18 02:14 ref cis-1,2-Dichloroethene [156-59-2] ^ 3.0 ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:14 ref cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/26/18 02:14 ref Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:14 ref Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/26/18 02:14 ref Dichlorodifluoromethane [75-71-8] ^ 28 ug/L 1 0.20 1.0 EPA 8260B 10/26/18 02:14 ref Ethyl Methacrylate [97-63-2] ^ 0.38 U ug/L 1 0.38 1.0 EPA 8260B 10/26/18 02:14 ref Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 02:14 ref Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/26/18 02:14 ref Isobutyl alcohol [78-83-1] ^ 11 U ug/L 1 11 50 EPA 8260B 10/26/18 02:14 ref Methacrylonitrile [126-98-7] ^ 4.9 U ug/L 1 4.9 10 EPA 8260B 10/26/18 02:14 ref Methyl Methacrylate [80-62-6] ^ 0.51 U ug/L 1 0.51 1.0 EPA 8260B 10/26/18 02:14 ref Methylene chloride [75-09-2] ^ 0.63 ug/L 1 0.23 1.0 EPA 8260B 10/26/18 02:14 ref Naphthalene [91-20-3] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 02:14 ref Page 37 of 83 (� �C_o www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte fNC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed By Notes Propionitrile [107-12-0] ^ 5.0 U ug/L 1 5.0 10 EPA 8260B 10/26/18 02:14 ref Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 02:14 ref Tetrachloroethene [127-18-4] ^ 42 ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:14 ref Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:14 ref trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 02:14 ref trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:14 ref trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/26/18 02:14 ref Trichloroethene [79-01-6] ^ 8.4 ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:14 ref Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/26/18 02:14 ref Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/26/18 02:14 ref Vinyl chloride [75-01-4] ^ 4.6 ug/L 1 0.32 1.0 EPA 8260B 10/26/18 02:14 ref Xylenes (Total) [1330-20-7] ^ 0.45 u ug/L 1 0.45 3.0 EPA 8260B 10/26/18 02:14 ref Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 38 1 50.0 77 % 53-136 8725019 EPA 8260E 10126118 02:14 ref Dibromofluoromethane 48 1 50.0 97 % 67-129 8725019 EPA 8260E 10126118 02:14 ref Toluene-d8 44 1 50.0 87 % 59-134 8725019 EPA 8260E 10126118 02:14 ref Page 38 of 83 (� �C_o www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed Ay Notes 1,2,4,5-Tetrachlorobenzene [95-94-3] ^ 3.4 U ug/L 1 3.4 10 EPA 8270D 10/31/18 12:44 DFM 1,3,5-Trinitrobenzene [99-35-4] ^ 3.0 U ug/L 1 3.0 10 EPA 8270D 10/31/18 12:44 DFM 1,3-Dinitrobenzene [99-65-0] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM 1,4-Naphthoquinone [130-15-4] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM 1,4-Phenylenediamine [106-50-3] ^ 4.0 U ug/L 1 4.0 10 EPA 8270D 10/31/18 12:44 DFM 1-Naphthylamine [134-32-7] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM 2,3,4,6-Tetrachlorophenol [58-90-2] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM 2,4,5-Trichlorophenol [95-95-4] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM 2,4,6-Trichlorophenol [88-06-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM 2,4-Dichlorophenol [120-83-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM 2,4-Dimethylphenol [105-67-9] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/31/18 12:44 DFM 2,4-Dinitrophenol [51-28-5] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM 2,4-Dinitrotoluene [121-14-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM 2,6-Dichlorophenol [87-65-0] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/31/18 12:44 DFM 2,6-Dinitrotoluene [606-20-2] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM 2-Acetylaminofluorene [53-96-3] ^ 3.1 U ug/L 1 3.1 10 EPA 8270D 10/31/18 12:44 DFM 2-Chloronaphthalene [91-58-7] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/31/18 12:44 DFM 2-Chlorophenol [95-57-8] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM 2-Methyl-4,6-dinitrophenol [534-52-1] ^ 3.3 U ug/L 1 3.3 10 EPA 8270D 10/31/18 12:44 DFM 2-Methylnaphthalene [91-57-6] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/31/18 12:44 DFM 2-Methylphenol [95-48-7] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/31/18 12:44 DFM 2-Naphthylamine [91-59-8] ^ 3.0 U ug/L 1 3.0 10 EPA 8270D 10/31/18 12:44 DFM 2-Nitroaniline [88-74-4] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM 2-Nitrophenol [88-75-5] ^ 1.1 U ug/L 1 1.1 10 EPA 8270D 10/31/18 12:44 DFM 3 & 4-Methylphenol [108-39-4/106-44-5] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/31/18 12:44 DFM 3,3'-Dichlorobenzidine [91-94-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8270D 10/31/18 12:44 DFM 3,3'-Dimethylbenzidine [119-93-7] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM 3-Methylcholanthrene [56-49-5] ^ 1.3 U ug/L 1 1.3 10 EPA 8270D 10/31/18 12:44 DFM 3-Nitroaniline [99-09-2] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM QV-02 4-Aminobiphenyl [92-67-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8270D 10/31/18 12:44 DFM 4-Bromophenyl-phenylether [101-55-3] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM 4-Chloro-3-methylphenol [59-50-7] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM 4-Chloroaniline [106-47-8] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/31/18 12:44 DFM 4-Chlorophenyl-phenylether [7005-72-3] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM 4-Nitroaniline [100-01-6] ^ 3.2 U ug/L 1 3.2 10 EPA 8270D 10/31/18 12:44 DFM 4-Nitrophenol [100-02-7] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/31/18 12:44 DFM 5-Nitro-o-toluidine [99-55-8] ^ 3.2 U ug/L 1 3.2 10 EPA 8270D 10/31/18 12:44 DFM 7,12-Dimethylbenz(a)anthracene [57-97-6] 1.4 U ug/L 1 1.4 10 EPA 8270D 10/31/18 12:44 DFM Acenaphthene [83-32-9] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/31/18 12:44 DFM Acenaphthylene [208-96-8] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM Acetophenone [98-86-2] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/31/18 12:44 DFM Anthracene [120-12-7] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Benzo(a)anthracene [56-55-3] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Benzo(a)pyrene [50-32-8] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Benzo(b)fluoranthene [205-99-2] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/31/18 12:44 DFM Benzo(g,h,i)perylene [191-24-2] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Benzo(k)fluoranthene [207-08-9] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Benzyl alcohol [100-51-6] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Bis(2-chloroethoxy)methane [111-91-1] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Bis(2-chloroethyl)ether [111-44-4] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM Bis(2-chloroisopropyl)ether [108-60-1] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM Page 39 of 83 (� �C_o www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed Ay Notes Bis(2-ethylhexyl)phthalate [117-81-7] ^ 1.9 U ug/L 1 1.9 5.0 EPA 8270D 10/31/18 12:44 DFM Butylbenzylphthalate [85-68-7] ^ 3.8 U ug/L 1 3.8 10 EPA 8270D 10/31/18 12:44 DFM Chlorobenzilate [510-15-6] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Chrysene [218-01-9] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Diallate [2303-16-4] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/31/18 12:44 DFM Dibenzo(a,h)anthracene [53-70-3] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/31/18 12:44 DFM Dibenzofuran [132-64-9] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM Diethylphthalate [84-66-2] ^ 2.4 U ug/L 1 2.4 10 EPA 8270D 10/31/18 12:44 DFM Dimethoate [60-51-5] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/31/18 12:44 DFM Dimethylphthalate [131-11-3] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM Di-n-butylphthalate [84-74-2] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/31/18 12:44 DFM Di-n-octylphthalate [117-84-0] ^ 3.1 U ug/L 1 3.1 10 EPA 8270D 10/31/18 12:44 DFM Disulfoton [298-04-4] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/31/18 12:44 DFM Ethyl methanesulfonate [62-50-0] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Famphur [52-85-7] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/31/18 12:44 DFM Fluoranthene [206-44-0] ^ 3.1 U ug/L 1 3.1 10 EPA 8270D 10/31/18 12:44 DFM Fluorene [86-73-7] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM Hexachlorobenzene [118-74-1] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/31/18 12:44 DFM Hexachlorobutadiene [87-68-3] ^ 2.8 U ug/L 1 2.8 10 EPA 8270D 10/31/18 12:44 DFM Hexachlorocyclopentadiene [77-47-4] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/31/18 12:44 DFM Hexachloroethane [67-72-1] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM Hexachloropropene [1888-71-7] ^ 6.8 U ug/L 1 6.8 10 EPA 8270D 10/31/18 12:44 DFM Indeno(1,2,3-cd)pyrene [193-39-5] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Isodrin [465-73-6] ^ 1.5 U ug/L 1 1.5 10 EPA 8270D 10/31/18 12:44 DFM Isophorone [78-59-1] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM Isosafrole [120-58-1] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Kepone [143-50-0] ^ 7.2 U ug/L 1 7.2 20 EPA 8270D 10/31/18 12:44 DFM Methapyrilene [91-80-5] ^ 4.8 U ug/L 1 4.8 10 EPA 8270D 10/31/18 12:44 DFM QV-01 Methyl Methanesulfonate [66-27-3] ^ 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Methyl parathion [298-00-0] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM Nitrobenzene [98-95-3] ^ 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM N-Nitrosodiethylamine [55-18-5] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/31/18 12:44 DFM N-Nitrosodimethylamine [62-75-9] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/31/18 12:44 DFM N-Nitrosodi-n-butylamine [924-16-3] ^ 2.0 U ug/L 1 2.0 10 EPA 8270D 10/31/18 12:44 DFM N-Nitroso-di-n-propylamine [621-64-7] ^ 2.3 U ug/L 1 2.3 10 EPA 8270D 10/31/18 12:44 DFM N-nitrosodiphenylamine/Diphenylamine 2.5 U ug/L 1 2.5 10 EPA 8270D 10/31/18 12:44 DFM [86-30-6/122-39-4] ^ N-Nitrosomethylethylamine [10595-95-6] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/31/18 12:44 DFM N-Nitrosopiperidine [100-75-4] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/31/18 12:44 DFM N-Nitrosopyrrolidine [930-55-2] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/31/18 12:44 DFM 0,0,0-Triethyl phosphorothioate [126-68-1] 2.2 U ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM o-Toluidine [95-53-4] ^ 1.6 U ug/L 1 1.6 10 EPA 8270D 10/31/18 12:44 DFM Parathion [56-38-2] ^ 1.7 U ug/L 1 1.7 10 EPA 8270D 10/31/18 12:44 DFM p-Dimethylaminoazobenzene [60-11-7] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM Pentachlorobenzene [608-93-5] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/31/18 12:44 DFM Pentachloronitrobenzene [82-68-8] ^ 1.9 U ug/L 1 1.9 10 EPA 8270D 10/31/18 12:44 DFM Phenacetin [62-44-2] ^ 2.7 U ug/L 1 2.7 10 EPA 8270D 10/31/18 12:44 DFM Phenanthrene [85-01-8] ^ 2.6 U ug/L 1 2.6 10 EPA 8270D 10/31/18 12:44 DFM Phenol [108-95-2] ^ 1.7 U ug/L 1 1.7 10 EPA 8270D 10/31/18 12:44 DFM Phorate [298-02-2] ^ 2.1 U ug/L 1 2.1 10 EPA 8270D 10/31/18 12:44 DFM Pronamide [23950-58-5] ^ 1.7 U ug/L 1 1.7 10 EPA 8270D 10/31/18 12:44 DFM Page 40 of 83 (� �C_o www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Semivolatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed gy Notes Pyrene [129-00-0] ^ 3.5 u ug/L 1 3.5 10 EPA 8270D 10/31/18 12:44 DFM Safrole [94-59-7] ^ 2.2 u ug/L 1 2.2 10 EPA 8270D 10/31/18 12:44 DFM Thionazin [297-97-2] ^ 2.3 u ug/L 1 2.3 10 EPA 8270D 10/31/18 12:44 DFM Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 2,4,6-Tribromophenol 90 1 100 90 % 10-179 8723001 EPA 8270D 10131118 12:44 DFM 2-Fluorobipheny4 38 1 50.0 75 % 10-149 8723001 EPA 8270D 10131118 12:44 DFM 2-Fluomphenol 44 1 100 44 % 10-110 8723001 EPA 8270D 10131118 12:44 DFM Nitrobenzene-d5 34 1 50.0 68 % 10-149 8723001 EPA 8270D 10131118 12:44 DFM Phenol-d5 37 1 100 37 % 10-88 8723001 EPA 8270D 10131118 12:44 DFM Terpheny4-d14 48 1 50.0 96 % 10-188 8723001 EPA 8270D 10131118 12:44 DFM Page 41 of 83 (� 0a www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Metals by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certlNed analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Mercury [7439-97-61 A 0.150 u ug/L 1 0.150 0.200 EPA 7470A 11/02/18 14:08 NMN Page 42 of 83 (� �C_o www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed Antimony [7440-36-0] ^ 1.85 U ug/L 5 1.85 5.00 EPA 6020B 10/30/18 12:41 Arsenic [7440-38-2] ^ 7.60 U ug/L 1 7.60 10.0 EPA 6010D 10/29/18 13:32 Barium [7440-39-3] ^ 60.8 ug/L 1 1.10 10.0 EPA 6010D 10/29/18 13:32 Beryllium [7440-41-7] ^ 0.233 ug/L 1 0.160 1.00 EPA 6010D 10/29/18 13:32 Cadmium [7440-43-9] ^ 0.815 ug/L 1 0.360 1.00 EPA 6010D 10/29/18 13:32 Chromium [7440-47-3] ^ 1.40 U ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:32 Cobalt [7440-48-4] ^ 4.99 ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:32 Copper [7440-50-8] ^ 1.60 U ug/L 1 1.60 10.0 EPA 6010D 10/29/18 13:32 Lead [7439-92-1] ^ 3.10 U ug/L 1 3.10 10.0 EPA 6010D 10/29/18 13:32 Nickel [7440-02-0] ^ 2.20 U ug/L 1 2.20 10.0 EPA 6010D 10/29/18 13:32 Selenium [7782-49-2] ^ 4.55 U ug/L 5 4.55 5.00 EPA 6020B 10/30/18 12:41 Silver [7440-22-4] ^ 1.90 U ug/L 1 1.90 10.0 EPA 6010D 10/29/18 13:32 Thallium [7440-28-0] ^ 0.550 U ug/L 5 0.550 5.00 EPA 6020B 10/30/18 12:41 Tin [7440-31-5] ^ 2.90 U ug/L 1 2.90 10.0 EPA 6010D 10/29/18 13:32 Vanadium [7440-62-2] ^ 1.40 U ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:32 Zinc [7440-66-6] ^ 168 ug/L 1 4.40 10.0 EPA 6010D 10/29/18 13:32 By Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH JDH Page 43 of 83 (� 0a www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Classical Chemistry Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certlNed analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Cyanide (total) [57-12-5] ^ 0.0049 u mg/L 1 0.0049 0.010 EPA 9014 10/30/18 18:04 JLI Sulfide [18496-25-8] ^ 0.010 u mg/L 1 0.010 0.10 SM 4500S2 10/22/18 18:20 Joc D-2011 Page 44 of 83 (� 0a www.encolabs.com Description: 9204-GP8 Lab Sample ID: CB16079-07 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 17:15 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 u ug/L 1 1.2 2.0 EPA 8260C 10/31/18 19:27 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.5 1 5.00 90 % 75-125 8J31025 EPA 8260C 10131116 19:27 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 45 of 83 (� �C_o www.encolabs.com Description: 9204-SWI Lab Sample ID: CB16079-08 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 15:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:44 ref 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/26/18 02:44 ref 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 02:44 ref 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:44 ref 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 02:44 ref 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 02:44 ref 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 02:44 ref 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 02:44 ref 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/26/18 02:44 ref 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 02:44 ref 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 02:44 ref 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/26/18 02:44 ref 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 02:44 ref 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/26/18 02:44 ref 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/26/18 02:44 ref 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/26/18 02:44 ref Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/26/18 02:44 ref Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/26/18 02:44 ref Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:44 ref Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 02:44 ref Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:44 ref Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/26/18 02:44 ref Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:44 ref Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/26/18 02:44 ref Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:44 ref Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:44 ref Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 02:44 ref Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/26/18 02:44 ref Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 02:44 ref cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:44 ref cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/26/18 02:44 ref Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:44 ref Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/26/18 02:44 ref Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 02:44 ref Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/26/18 02:44 ref Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 02:44 ref Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 02:44 ref Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 02:44 ref Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 02:44 ref trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 02:44 ref trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:44 ref trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/26/18 02:44 ref Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 02:44 ref Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/26/18 02:44 ref Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/26/18 02:44 ref Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/26/18 02:44 ref Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/26/18 02:44 ref Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 38 1 50.0 77 % 53-136 8725019 EPA 82608 10126118 02:44 ref Dibromofluoromethane 51 1 50.0 101 % 67-129 8725019 EPA 82608 10126118 02:44 ref Page 46 of 83 (� 0a www.encolabs.com Description: 9204-SW1 Lab Sample ID: CB16079-08 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 15:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 44 1 50.0 89 % 59-134 8J25019 EPA 82603 10126116 02:44 ref Page 47 of 83 (� �C_o www.encolabs.com Description: 9204-SWI Lab Sample ID: CB16079-08 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 15:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL INC SWSL Method Analyzed Antimony [7440-36-0] ^ 1.85 U ug/L 5 1.85 5.00 EPA 6020B 10/30/18 12:45 Arsenic [7440-38-2] ^ 7.60 U ug/L 1 7.60 10.0 EPA 6010D 10/29/18 13:42 Barium [7440-39-3] ^ 36.8 ug/L 1 1.10 10.0 EPA 6010D 10/29/18 13:42 Beryllium [7440-41-7] ^ 0.199 ug/L 1 0.160 1.00 EPA 6010D 10/29/18 13:42 Cadmium [7440-43-9] ^ 0.360 U ug/L 1 0.360 1.00 EPA 6010D 10/29/18 13:42 Chromium [7440-47-3] ^ 1.40 U ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:42 Cobalt [7440-48-4] ^ 1.40 ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:42 Copper [7440-50-8] ^ 1.60 U ug/L 1 1.60 10.0 EPA 6010D 10/29/18 13:42 Lead [7439-92-1] ^ 4.32 ug/L 1 3.10 10.0 EPA 6010D 10/29/18 13:42 Nickel [7440-02-0] ^ 2.20 U ug/L 1 2.20 10.0 EPA 6010D 10/29/18 13:42 Selenium [7782-49-2] ^ 4.55 U ug/L 5 4.55 5.00 EPA 6020B 10/30/18 12:45 Silver [7440-22-4] ^ 1.90 U ug/L 1 1.90 10.0 EPA 6010D 10/29/18 13:42 Thallium [7440-28-0] ^ 0.550 U ug/L 5 0.550 5.00 EPA 6020B 10/30/18 12:45 Vanadium [7440-62-2] ^ 10.6 ug/L 1 1.40 10.0 EPA 6010D 10/29/18 13:42 Zinc [7440-66-6] ^ 9.16 ug/L 1 4.40 10.0 EPA 6010D 10/29/18 13:42 By Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 48 of 83 (� 0a www.encolabs.com Description: 9204-SW1 Lab Sample ID: CB16079-08 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 15:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 u ug/L 1 1.2 2.0 EPA 8260C 10/31/18 20:04 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 5.3 1 5.00 106 % 75-125 8J31025 EPA 8260C 1013111820:04 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 49 of 83 (� �C_o www.encolabs.com Description: 9204-SW2 Lab Sample ID: CB16079-09 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 12:20 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:14 ref 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/26/18 03:14 ref 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 03:14 ref 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 03:14 ref 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 03:14 ref 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 03:14 ref 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 03:14 ref 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 03:14 ref 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/26/18 03:14 ref 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 03:14 ref 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 03:14 ref 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/26/18 03:14 ref 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 03:14 ref 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/26/18 03:14 ref 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/26/18 03:14 ref 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/26/18 03:14 ref Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/26/18 03:14 ref Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/26/18 03:14 ref Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:14 ref Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 03:14 ref Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:14 ref Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/26/18 03:14 ref Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 03:14 ref Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/26/18 03:14 ref Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:14 ref Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:14 ref Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 03:14 ref Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/26/18 03:14 ref Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 03:14 ref cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:14 ref cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/26/18 03:14 ref Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:14 ref Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/26/18 03:14 ref Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 03:14 ref Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/26/18 03:14 ref Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 03:14 ref Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 03:14 ref Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:14 ref Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 03:14 ref trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 03:14 ref trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:14 ref trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/26/18 03:14 ref Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:14 ref Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/26/18 03:14 ref Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/26/18 03:14 ref Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/26/18 03:14 ref Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/26/18 03:14 ref Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 37 1 50.0 75 % 53-136 8725019 EPA 8160E 10126118 03:14 ref Dibromofluoromethane 49 1 50.0 98 % 67-129 8725019 EPA 8160E 10126118 03:14 ref Page 50 of 83 (� 0a www.encolabs.com Description: 9204-SW2 Lab Sample ID: CB16079-09 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 12:20 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 43 1 50.0 86 % 59-134 8J25019 EPA 82603 10126116 03:14 ref Page 51 of 83 Description: 9204-SW2 Matrix: Surface Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-09 Sampled: 10/18/18 12:20 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte [CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 U ug/L 5 Arsenic [7440-38-2] ^ 7.60 U ug/L 1 Barium [7440-39-3] ^ 78.9 ug/L 1 Beryllium [7440-41-7] ^ 0.160 U ug/L 1 Cadmium [7440-43-9] ^ 0.360 U ug/L 1 Chromium [7440-47-3] ^ 1.40 U ug/L 1 Cobalt [7440-48-4] ^ 1.46 ug/L 1 Copper [7440-50-8] ^ 1.60 U ug/L 1 Lead [7439-92-1] ^ 3.10 U ug/L 1 Nickel [7440-02-0] ^ 2.20 U ug/L 1 Selenium [7782-49-2] ^ 4.55 U ug/L 5 Silver [7440-22-4] ^ 1.90 U ug/L 1 Thallium [7440-28-0] ^ 0.550 U ug/L 5 Vanadium [7440-62-2] ^ 1.71 ug/L 1 Zinc [7440-66-6] ^ 4.40 U ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 12:49 7.60 10.0 EPA 6010D 10/29/18 13:44 1.10 10.0 EPA 6010D 10/29/18 13:44 0.160 1.00 EPA 6010D 10/29/18 13:44 0.360 1.00 EPA 6010D 10/29/18 13:44 1.40 10.0 EPA 6010D 10/29/18 13:44 1.40 10.0 EPA 6010D 10/29/18 13:44 1.60 10.0 EPA 6010D 10/29/18 13:44 3.10 10.0 EPA 6010D 10/29/18 13:44 2.20 10.0 EPA 6010D 10/29/18 13:44 4.55 5.00 EPA 6020B 10/30/18 12:49 1.90 10.0 EPA 6010D 10/29/18 13:44 0.550 5.00 EPA 6020B 10/30/18 12:49 1.40 10.0 EPA 6010D 10/29/18 13:44 4.40 10.0 EPA 6010D 10/29/18 13:44 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 52 of 83 (� 0a www.encolabs.com Description: 9204-SW2 Lab Sample ID: CB16079-09 Received: 10/19/18 19:05 Matrix: Surface Water Sampled: 10/18/18 12:20 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 2.0 ug/L 1 1.2 2.0 EPA 8260C 10/31/18 20:40 KKW Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 5.6 1 5.00 ill % 75-125 8J31025 EPA8260C 1013111620:40 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 53 of 83 (� �C_o www.encolabs.com Description: 9204-Duplicate Lab Sample ID: CB16079-10 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 00:00 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:44 ref 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/26/18 03:44 ref 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 03:44 ref 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 03:44 ref 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 03:44 ref 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 03:44 ref 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 03:44 ref 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 03:44 ref 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/26/18 03:44 ref 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 03:44 ref 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 03:44 ref 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/26/18 03:44 ref 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 03:44 ref 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/26/18 03:44 ref 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/26/18 03:44 ref 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/26/18 03:44 ref Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/26/18 03:44 ref Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/26/18 03:44 ref Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:44 ref Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 03:44 ref Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:44 ref Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/26/18 03:44 ref Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 03:44 ref Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/26/18 03:44 ref Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:44 ref Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:44 ref Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 03:44 ref Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/26/18 03:44 ref Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 03:44 ref cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:44 ref cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/26/18 03:44 ref Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:44 ref Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/26/18 03:44 ref Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 03:44 ref Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/26/18 03:44 ref Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 03:44 ref Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 03:44 ref Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 03:44 ref Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 03:44 ref trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 03:44 ref trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:44 ref trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/26/18 03:44 ref Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 03:44 ref Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/26/18 03:44 ref Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/26/18 03:44 ref Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/26/18 03:44 ref Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/26/18 03:44 ref Notes Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 41 1 50.0 83 % 53-136 8725019 EPA 8160E 10126118 03:44 ref Dibromofluoromethane 51 1 50.0 102 % 67-129 8725019 EPA 8260E 10126118 03:44 ref Page 54 of 83 (� 0a www.encolabs.com Description: 9204-Duplicate Lab Sample ID: CB16079-10 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 00:00 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 46 1 50.0 92 % 59-134 8J25019 EPA 82603 10126116 03:44 ref Page 55 of 83 Description: 9204-Duplicate Matrix: Ground Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-10 Sampled: 10/18/18 00:00 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte [CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 u ug/L 5 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 Barium [7440-39-3] ^ 9.60 ug/L 1 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 Chromium [7440-47-3] ^ 1.40 u ug/L 1 Cobalt [7440-48-4] ^ 1.40 u ug/L 1 Copper [7440-50-8] ^ 1.60 u ug/L 1 Lead [7439-92-1] ^ 3.10 u ug/L 1 Nickel [7440-02-0] ^ 2.20 u ug/L 1 Selenium [7782-49-2] ^ 4.55 u ug/L 5 Silver [7440-22-4] ^ 1.90 u ug/L 1 Thallium [7440-28-0] ^ 0.550 u ug/L 5 Vanadium [7440-62-2] ^ 1.40 u ug/L 1 Zinc [7440-66-6] ^ 4.40 u ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 12:53 7.60 10.0 EPA 6010D 10/30/18 13:54 1.10 10.0 EPA 6010D 10/30/18 13:54 0.160 1.00 EPA 6010D 10/30/18 13:54 0.360 1.00 EPA 6010D 10/30/18 13:54 1.40 10.0 EPA 6010D 10/30/18 13:54 1.40 10.0 EPA 6010D 10/30/18 13:54 1.60 10.0 EPA 6010D 10/30/18 13:54 3.10 10.0 EPA 6010D 10/30/18 13:54 2.20 10.0 EPA 6010D 10/30/18 13:54 4.55 5.00 EPA 6020B 10/30/18 12:53 1.90 10.0 EPA 6010D 10/30/18 13:54 0.550 5.00 EPA 6020B 10/30/18 12:53 1.40 10.0 EPA 6010D 10/30/18 13:54 4.40 10.0 EPA 6010D 10/30/18 13:54 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 56 of 83 (� 0a www.encolabs.com Description: 9204-Duplicate Lab Sample ID: CB16079-10 Received: 10/19/18 19:05 Matrix: Ground Water Sampled: 10/18/18 00:00 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 u ug/L 1 1.2 2.0 EPA 8260C 11/01/18 00:55 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.7 1 5.00 93 % 75-125 8J31029 EPA 8260C 11/01/16 00:55 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 57 of 83 (� �C_o www.encolabs.com Description: 9204-EquipmentBlank Lab Sample ID: CB16079-11 Received: 10/19/18 19:05 Matrix: Water Sampled: 10/18/18 17:50 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed ly 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:15 ref 1,1,1-Trichloroethane [71-55-6] ^ 0.12 U ug/L 1 0.12 1.0 EPA 8260B 10/26/18 04:15 ref 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 U ug/L 1 0.28 1.0 EPA 8260B 10/26/18 04:15 ref 1,1,2-Trichloroethane [79-00-5] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 04:15 ref 1,1-Dichloroethane [75-34-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 04:15 ref 1,1-Dichloroethene [75-35-4] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 04:15 ref 1,2,3-Trichloropropane [96-18-4] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 04:15 ref 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 04:15 ref 1,2-Dibromoethane [106-93-4] ^ 0.66 U ug/L 1 0.66 1.0 EPA 8260B 10/26/18 04:15 ref 1,2-Dichlorobenzene [95-50-1] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 04:15 ref 1,2-Dichloroethane [107-06-2] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 04:15 ref 1,2-Dichloropropane [78-87-5] ^ 0.10 U ug/L 1 0.10 1.0 EPA 8260B 10/26/18 04:15 ref 1,4-Dichlorobenzene [106-46-7] ^ 0.19 U ug/L 1 0.19 1.0 EPA 8260B 10/26/18 04:15 ref 2-Butanone [78-93-3] ^ 1.3 U ug/L 1 1.3 5.0 EPA 8260B 10/26/18 04:15 ref 2-Hexanone [591-78-6] ^ 0.88 U ug/L 1 0.88 5.0 EPA 8260B 10/26/18 04:15 ref 4-Methyl-2-pentanone [108-10-1] ^ 1.1 U ug/L 1 1.1 5.0 EPA 8260B 10/26/18 04:15 ref Acetone [67-64-1] ^ 10 U ug/L 1 10 20 EPA 8260B 10/26/18 04:15 ref Acrylonitrile [107-13-1] ^ 3.5 U ug/L 1 3.5 10 EPA 8260B 10/26/18 04:15 ref Benzene [71-43-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:15 ref Bromochloromethane [74-97-5] ^ 0.48 U ug/L 1 0.48 1.0 EPA 8260B 10/26/18 04:15 ref Bromodichloromethane [75-27-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:15 ref Bromoform [75-25-2] ^ 0.22 U ug/L 1 0.22 1.0 EPA 8260B 10/26/18 04:15 ref Bromomethane [74-83-9] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 04:15 ref Carbon disulfide [75-15-0] ^ 1.5 U ug/L 1 1.5 5.0 EPA 8260B 10/26/18 04:15 ref Carbon tetrachloride [56-23-5] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:15 ref Chlorobenzene [108-90-7] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:15 ref Chloroethane [75-00-3] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 04:15 ref Chloroform [67-66-3] ^ 0.18 U ug/L 1 0.18 1.0 EPA 8260B 10/26/18 04:15 ref Chloromethane [74-87-3] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 04:15 ref cis-1,2-Dichloroethene [156-59-2] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:15 ref cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 U ug/L 1 0.20 1.0 EPA 8260B 10/26/18 04:15 ref Dibromochloromethane [124-48-1] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:15 ref Dibromomethane [74-95-3] ^ 0.27 U ug/L 1 0.27 1.0 EPA 8260B 10/26/18 04:15 ref Ethylbenzene [100-41-4] ^ 0.13 U ug/L 1 0.13 1.0 EPA 8260B 10/26/18 04:15 ref Iodomethane [74-88-4] ^ 1.7 U ug/L 1 1.7 5.0 EPA 8260B 10/26/18 04:15 ref Methylene chloride [75-09-2] ^ 0.23 U ug/L 1 0.23 1.0 EPA 8260B 10/26/18 04:15 ref Styrene [100-42-5] ^ 0.11 U ug/L 1 0.11 1.0 EPA 8260B 10/26/18 04:15 ref Tetrachlorcethene [127-18-4] ^ 0.17 U ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:15 ref Toluene [108-88-3] ^ 0.14 U ug/L 1 0.14 1.0 EPA 8260B 10/26/18 04:15 ref trans-1,2-Dichloroethene [156-60-5] ^ 0.21 U ug/L 1 0.21 1.0 EPA 8260B 10/26/18 04:15 ref trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:15 ref trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 U ug/L 1 0.70 1.0 EPA 8260B 10/26/18 04:15 ref Trichloroethene [79-01-6] ^ 0.15 U ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:15 ref Trichlorofluoromethane [75-69-4] ^ 0.24 U ug/L 1 0.24 1.0 EPA 8260B 10/26/18 04:15 ref Vinyl acetate [108-05-4] ^ 0.95 U ug/L 1 0.95 5.0 EPA 8260B 10/26/18 04:15 ref Vinyl chloride [75-01-4] ^ 0.32 U ug/L 1 0.32 1.0 EPA 8260B 10/26/18 04:15 ref Xylenes(Total) [1330-20-7] ^ 0.45 U ug/L 1 0.45 3.0 EPA 8260B 10/26/18 04:15 ref Notes Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 39 1 50.0 77 % 53-136 8725019 EPA 8160E 10126118 04:15 ref Dibromofluoromethane 50 1 50.0 99 % 67-129 8725019 EPA 8160E 10126118 04:15 ref Page 58 of 83 (� 0a www.encolabs.com Description: 9204-EquipmentBlank Lab Sample ID: CB16079-11 Received: 10/19/18 19:05 Matrix: Water Sampled: 10/18/18 17:50 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 44 1 50.0 89 % 59-134 8J25019 EPA 82603 10126116 04:15 ref Page 59 of 83 Description: 9204-Eq uipmentBlan k Matrix: Water Project: Sorrell Landfill - Semi -Annual Lab Sample ID: CB16079-11 Sampled: 10/18/18 17:50 Sampled By: Bob Bryant Metals (total recoverable) by EPA 6000/7000 Series Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified anaiyte [NC 591] Analyte I'CAS Numberl Results Flag Units DF Antimony [7440-36-0] ^ 1.85 u ug/L 5 Arsenic [7440-38-2] ^ 7.60 u ug/L 1 Barium [7440-39-3] ^ 1.10 u ug/L 1 Beryllium [7440-41-7] ^ 0.160 u ug/L 1 Cadmium [7440-43-9] ^ 0.360 u ug/L 1 Chromium [7440-47-3] ^ 1.40 u ug/L 1 Cobalt [7440-48-4] ^ 1.40 u ug/L 1 Copper [7440-50-8] ^ 1.60 u ug/L 1 Lead [7439-92-1] ^ 3.10 u ug/L 1 Nickel [7440-02-0] ^ 2.20 u ug/L 1 Selenium [7782-49-2] ^ 4.55 u ug/L 5 Silver [7440-22-4] ^ 1.90 u ug/L 1 Thallium [7440-28-0] ^ 0.550 u ug/L 5 Vanadium [7440-62-2] ^ 1.40 u ug/L 1 Zinc [7440-66-6] ^ 4.40 u ug/L 1 (� �C_o www.encolabs.com Received: 10/ 19/ 18 19:05 Work Order: CB16079 MDL MRL NC SWSL Method Analyzed 1.85 5.00 EPA 6020B 10/30/18 12:57 7.60 10.0 EPA 6010D 10/30/18 13:56 1.10 10.0 EPA 6010D 10/30/18 13:56 0.160 1.00 EPA 6010D 10/30/18 13:56 0.360 1.00 EPA 6010D 10/30/18 13:56 1.40 10.0 EPA 6010D 10/30/18 13:56 1.40 10.0 EPA 6010D 10/30/18 13:56 1.60 10.0 EPA 6010D 10/30/18 13:56 3.10 10.0 EPA 6010D 10/30/18 13:56 2.20 10.0 EPA 6010D 10/30/18 13:56 4.55 5.00 EPA 6020B 10/30/18 12:57 1.90 10.0 EPA 6010D 10/30/18 13:56 0.550 5.00 EPA 6020B 10/30/18 12:57 1.40 10.0 EPA 6010D 10/30/18 13:56 4.40 10.0 EPA 6010D 10/30/18 13:56 Ay Notes CMK JDH JDH JDH JDH JDH JDH JDH JDH JDH CMK JDH CMK JDH JDH Page 60 of 83 (� 0a www.encolabs.com Description: 9204-EquipmentBlank Lab Sample ID: CB16079-11 Received: 10/19/18 19:05 Matrix: Water Sampled: 10/18/18 17:50 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: Bob Bryant Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 U ug/L 1 1.2 2.0 EPA 8260C 11/01/18 01:32 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.3 1 5.00 85 % 75-125 8J31029 EPA 8260C 11/01/16 01:32 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 61 of 83 (� �C_o www.encolabs.com Description: 9204-Trip Blank Lab Sample ID: CB16079-12 Received: 10/19/18 19:05 Matrix: Water Sampled: 10/18/18 10:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified anaiyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL MRL NC SWSL Method Analyzed Ay Notes 1,1,1,2-Tetrachloroethane [630-20-6] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:45 ref 1,1,1-Trichloroethane [71-55-6] ^ 0.12 u ug/L 1 0.12 1.0 EPA 8260B 10/26/18 04:45 ref 1,1,2,2-Tetrachloroethane [79-34-5] ^ 0.28 u ug/L 1 0.28 1.0 EPA 8260B 10/26/18 04:45 ref 1,1,2-Trichloroethane [79-00-5] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/26/18 04:45 ref 1,1-Dichloroethane [75-34-3] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/26/18 04:45 ref 1,1-Dichloroethene [75-35-4] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/26/18 04:45 ref 1,2,3-Trichloropropane [96-18-4] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/26/18 04:45 ref 1,2-Dibromo-3-chloropropane [96-12-8] ^ 0.48 u ug/L 1 0.48 1.0 EPA 8260B 10/26/18 04:45 ref 1,2-Dibromoethane [106-93-4] ^ 0.66 u ug/L 1 0.66 1.0 EPA 8260B 10/26/18 04:45 ref 1,2-Dichlorobenzene [95-50-1] ^ 0.19 u ug/L 1 0.19 1.0 EPA 8260B 10/26/18 04:45 ref 1,2-Dichloroethane [107-06-2] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/26/18 04:45 ref 1,2-Dichloropropane [78-87-5] ^ 0.10 u ug/L 1 0.10 1.0 EPA 8260B 10/26/18 04:45 ref 1,4-Dichlorobenzene [106-46-7] ^ 0.19 u ug/L 1 0.19 1.0 EPA 8260B 10/26/18 04:45 ref 2-Butanone [78-93-3] ^ 1.3 u ug/L 1 1.3 5.0 EPA 8260B 10/26/18 04:45 ref 2-Hexanone [591-78-6] ^ 0.88 u ug/L 1 0.88 5.0 EPA 8260B 10/26/18 04:45 ref 4-Methyl-2-pentanone [108-10-1] ^ 1.1 u ug/L 1 1.1 5.0 EPA 8260B 10/26/18 04:45 ref Acetone [67-64-1] ^ 10 u ug/L 1 10 20 EPA 8260B 10/26/18 04:45 ref Acrylonitrile [107-13-1] ^ 3.5 u ug/L 1 3.5 10 EPA 8260B 10/26/18 04:45 ref Benzene [71-43-2] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:45 ref Bromochloromethane [74-97-5] ^ 0.48 u ug/L 1 0.48 1.0 EPA 8260B 10/26/18 04:45 ref Bromodichloromethane [75-27-4] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:45 ref Bromoform [75-25-2] ^ 0.22 u ug/L 1 0.22 1.0 EPA 8260B 10/26/18 04:45 ref Bromomethane [74-83-9] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/26/18 04:45 ref Carbon disulfide [75-15-0] ^ 1.5 u ug/L 1 1.5 5.0 EPA 8260B 10/26/18 04:45 ref Carbon tetrachloride [56-23-5] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:45 ref Chlorobenzene [108-90-7] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:45 ref Chloroethane [75-00-3] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/26/18 04:45 ref Chloroform [67-66-3] ^ 0.18 u ug/L 1 0.18 1.0 EPA 8260B 10/26/18 04:45 ref Chloromethane [74-87-3] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/26/18 04:45 ref cis-1,2-Dichloroethene [156-59-2] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:45 ref cis-1,3-Dichloropropene [10061-01-5] ^ 0.20 u ug/L 1 0.20 1.0 EPA 8260B 10/26/18 04:45 ref Dibromochloromethane [124-48-1] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:45 ref Dibromomethane [74-95-3] ^ 0.27 u ug/L 1 0.27 1.0 EPA 8260B 10/26/18 04:45 ref Ethylbenzene [100-41-4] ^ 0.13 u ug/L 1 0.13 1.0 EPA 8260B 10/26/18 04:45 ref Iodomethane [74-88-4] ^ 1.7 u ug/L 1 1.7 5.0 EPA 8260B 10/26/18 04:45 ref Methylene chloride [75-09-2] ^ 0.23 u ug/L 1 0.23 1.0 EPA 8260B 10/26/18 04:45 ref Styrene [100-42-5] ^ 0.11 u ug/L 1 0.11 1.0 EPA 8260B 10/26/18 04:45 ref Tetrachlorcethene [127-18-4] ^ 0.17 u ug/L 1 0.17 1.0 EPA 8260B 10/26/18 04:45 ref Toluene [108-88-3] ^ 0.14 u ug/L 1 0.14 1.0 EPA 8260B 10/26/18 04:45 ref trans-1,2-Dichloroethene [156-60-5] ^ 0.21 u ug/L 1 0.21 1.0 EPA 8260B 10/26/18 04:45 ref trans-1,3-Dichloropropene [10061-02-6] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:45 ref trans-1,4-Dichloro-2-butene [110-57-6] ^ 0.70 u ug/L 1 0.70 1.0 EPA 8260B 10/26/18 04:45 ref Trichloroethene [79-01-6] ^ 0.15 u ug/L 1 0.15 1.0 EPA 8260B 10/26/18 04:45 ref Trichlorofluoromethane [75-69-4] ^ 0.24 u ug/L 1 0.24 1.0 EPA 8260B 10/26/18 04:45 ref Vinyl acetate [108-05-4] ^ 0.95 u ug/L 1 0.95 5.0 EPA 8260B 10/26/18 04:45 ref Vinyl chloride [75-01-4] ^ 0.32 u ug/L 1 0.32 1.0 EPA 8260B 10/26/18 04:45 ref Xylenes(Total) [1330-20-7] ^ 0.45 u ug/L 1 0.45 3.0 EPA 8260B 10/26/18 04:45 ref Surrogates Results DF Spike Lvi % Rec % Rec Limits Batch Method Analyzed By Notes 4-Bromofluorobenzene 38 1 50.0 76 % 53-136 8725019 EPA 8160E 10126118 04:45 ref Dibromofluoromethane 49 1 50.0 99 % 67-129 8725019 EPA 8160E 10126118 04:45 ref Page 62 of 83 (� 0a www.encolabs.com Description: 9204-TripBlank Lab Sample ID: CB16079-12 Received: 10/19/18 19:05 Matrix: Water Sampled: 10/18/18 10:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: ENCO Volatile Organic Compounds by GCMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed IX Notes Surrogates Results DF Spike Lvl %Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 43 1 50.0 87 % 59-134 8J25019 EPA 82603 10126116 04:45 ref Page 63 of 83 (� 0a www.encolabs.com Description: 9204-TripBlank Lab Sample ID: CB16079-12 Received: 10/19/18 19:05 Matrix: Water Sampled: 10/18/18 10:45 Work Order: CB16079 Project: Sorrell Landfill - Semi -Annual Sampled By: ENCO Volatile Organic Compounds by GCMS SIM Isotope Dilution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Analyte rCAS Numberl Results Flaa Units DF MDL MRL NC SWSL Method Analyzed AX Notes 1,4-Dioxane [123-91-1] 1.2 U ug/L 1 1.2 2.0 EPA 8260C 10/31/18 16:25 KKW Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.6 1 5.00 92 % 75-125 8J31025 EPA 8260C 10131116 16:25 KKW This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 64 of 83 QUALITY CONTROL Volatile Organic Compounds by GCMS - Quality Control Batch 8J25018 - EPA 5030E MS (� 0a www.encolabs.com Blank (8725018-BLK1) Prepared: 10/25/2018 09:46 Analyzed: 10/25/2018 15:23 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,1-Dichloropropene 0.15 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2,4-Trichlorobenzene 0.14 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,3-Dichlorobenzene 0.15 U 1.0 ug/L 1,3-Dichloropropane 0.16 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2,2-Dichloropropane 0.28 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 3-Chloropropene 0.11 U 1.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acetonitrile 5.0 U 10 ug/L Acrolein 4.0 U 10 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Chloroprene 0.64 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Dichlorodifluoromethane 0.20 U 1.0 ug/L Ethyl Methacrylate 0.38 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Isobutyl alcohol 11 U 50 ug/L Methacrylonitrile 4.9 U 10 ug/L Methyl Methacrylate 0.51 U 1.0 ug/L Page 65 of 83 QUALITY CONTROL Volatile Organic Compounds by GCMS - Quality Control Batch SJ25018 - EPA 5030E MS (� �C-O www.encolabs.com Blank (8125018-BLK1) Continued Prepared: 10/25/2018 09:46 Analyzed: 10/25/2018 15:23 inalyte %REC AL Flag MRL Units %REC Limits Notes Methylene chloride 0.23 U 1.0 ug/L Naphthalene 0.11 U 1.0 ug/L Propionitrile 5.0 U 10 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Surrogate.4-8romofluorobenzene 45 ug/L 50.0 90 53-136 Surrogate. Dibromofluoromethane 45 U91L 50.0 90 67-129 Surrogate. Toluene-d8 46 ug/L 50.0 93 59-134 LCS (8125018-BS3) Prepared: 10/25/2018 09:46 Analyzed: 10/25/2018 13:15 7A..Iyte EJ�Result Spike Source %REC RPD Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 100 75-133 Benzene 23 1.0 ug/L 20.0 115 80-134 Chlorobenzene 21 1.0 ug/L 20.0 104 80-120 Toluene 20 1.0 ug/L 20.0 99 71-120 Trichloroethene 23 1.0 ug/L 20.0 114 74-120 - - - - - - - - - - - - - - Matrix Spike (8125018-MS1) - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/25/2018 - - - - - - - - - - - 09:46 Analyzed: 10/25/2018 14:19 - - - - - - - - Source:CB16362-07 �nalyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 94 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 114 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 Toluene 19 1.0 ug/L 20.0 0.14 U 95 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 112 74-120 - - - - - - Matrix Spike Dup (8]25018-MSD1) - - - - - - - - - - - - - - - - Prepared: - - - - 10/25/2018 - - - - - - - - - - - 09:46 Analyzed: 10/25/2018 13:47 - - - - - - - - Source:CB16362-07 lAnalvte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 3 20 Benzene 23 1.0 ug/L 20.0 0.15 U 114 80-134 0.09 17 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 104 80-120 2 16 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 4 17 Trichloroethene 23 1.0 ug/L 20.0 0.15 U 116 74-120 4 22 Page 66 of 83 QUALITY CONTROL Volatile Organic Compounds by GCMS - Quality Control Batch 8J25019 - EPA 5030B M5 (� 0a www.encolabs.com Blank (8325019-BLK1) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 20:40 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,1-Dichloropropene 0.15 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2,4-Trichlorobenzene 0.14 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,3-Dichlorobenzene 0.15 U 1.0 ug/L 1,3-Dichloropropane 0.16 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2,2-Dichloropropane 0.28 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 3-Chloropropene 0.11 U 1.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acetonitrile 5.0 U 10 ug/L Acrolein 4.0 U 10 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Chloroprene 0.64 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Dichlorodifluoromethane 0.20 U 1.0 ug/L Ethyl Methacrylate 0.38 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Isobutyl alcohol 11 U 50 ug/L Methacrylonitrile 4.9 U 10 ug/L Methyl Methacrylate 0.51 U 1.0 ug/L Page 67 of 83 QUALITY CONTROL Volatile Organic Compounds by GCMS - Quality Control Batch SJ25019 - EPA 5030E MS (� �C-O www.encolabs.com Blank (8125019-BLK1) Continued Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 20:40 inalyte %REC AL Flag MRL Units %REC Limits Notes Methylene chloride 0.23 U 1.0 ug/L Naphthalene 0.11 U 1.0 ug/L Propionitrile 5.0 U 10 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Surrogate.4-8romofluorobenzene 41 ug/L 50.0 81 53-136 Surrogate. Dibromofluoromethane 47 U91L 50.0 93 67-129 Surrogate. Toluene-d8 43 ug/L 50.0 87 59-134 LCS (8125019-BS3) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 18:39 7A..Iyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 109 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 - - - - - - - - - - - - - - Matrix Spike (8125019-MS1) - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/25/2018 - - - - - - - - - - - 10:03 Analyzed: 10/25/2018 19:09 - - - - - - - - Source:CB16362-08 �nalyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 113 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 116 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 103 74-120 - - - - - - Matrix Spike Dup (8]25019-MSD1) - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/25/2018 - - - - - - - - - - - 10:03 Analyzed: 10/25/2018 19:39 - - - - - - - - Source:CB16362-08 lAnalvte IF Spike Source IF %REC 11 RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 106 75-133 6 20 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 3 16 Toluene 19 1.0 ug/L 20.0 0.14 U 95 71-120 3 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 3 22 Page 68 of 83 QUALITY CONTROL Volatile Organic Compounds by GCMS - Quality Control Batch 8J25036 - EPA 5030B M5 (� 0a www.encolabs.com Blank (8325036-BLK1) Prepared: 10/25/2018 13:06 Analyzed: 10/26/2018 12:59 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Surrogate:4-Bromofluorobenzene 45 ug/L 50.0 91 53-136 Page 69 of 83 QUALITY CONTROL Volatile Organic Compounds by GCMS - Quality Control Batch 8J25036 - EPA 5030E MS (� 0a www.encolabs.com Blank (8325036-BLK1) Continued Prepared: 10/25/2018 13:06 Analyzed: 10/26/2018 12:59 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Surrogate: Dibromofluoromethane 45 ug/L 50.0 91 67-129 Surrogate: Toluene-d8 46 ug/L 50.0 92 59-134 - - - - - - - - - - - - - - LCS (8325036-BSI) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/25/2018 13:06 Analyzed: 10/26/2018 10:51 - - - - - - - - �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 102 75-133 Benzene 23 1.0 ug/L 20.0 116 80-134 Chlorobenzene 20 1.0 ug/L 20.0 102 80-120 Toluene 19 1.0 ug/L 20.0 95 71-120 Trichloroethene 23 1.0 ug/L 20.0 114 74-120 - - - - - - - - - - - - - - Matrix Spike (8325036-MS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/25/2018 13:06 Analyzed: 10/26/2018 11:23 - - - - - - - - Source: CB16520-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 101 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 116 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 103 80-120 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 Trichloroethene 23 1.0 ug/L 20.0 0.15 U 116 74-120 - - - - - - - - - - - - - - Matrix Spike Dup (8325036-MSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/25/2018 13:06 Analyzed: 10/26/2018 11:55 - - - - - - - - Source: CB16520-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 95 75-133 6 20 Benzene 22 1.0 ug/L 20.0 0.15 U 110 80-134 5 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 100 80-120 3 16 Toluene 19 1.0 ug/L 20.0 0.14 U 94 71-120 4 17 Trichloroethene - - - - - - - - - - - - - - 22 - - - - - - - 1.0 - - - - ug/L - - - - 20.0 - - - - 0.15 U - - - - 112 - - - - 74-120 4 - - - - - - - - 22 - - - - - - - Semivolatile Organic Compounds by GCMS - Quality Control Batch 8J23001 - EPA 3510C MS Blank (8323001-BLKI) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes 1,2,4,5-Tetrachlorobenzene 3.4 U 10 ug/L 1,3,5-Trinitrobenzene 3.0 U 10 ug/L 1,3-Dinitrobenzene 2.5 U 10 ug/L 1,4-Naphthoquinone 2.5 U 10 ug/L 1,4-Phenylenediamine 4.0 U 10 ug/L 1-Naphthylamine 2.2 U 10 ug/L 2,3,4,6-Tetrachlorophenol 2.4 U 10 ug/L 2,4,5-Trichlorophenol 2.5 U 10 ug/L 2,4,6-Trichlorophenol 2.6 U 10 ug/L Page 70 of 83 QUALITY CONTROL Semivolatile Organic Compounds by GCMS - Quality Control Batch 8J23001 - EPA 3510C MS (� �C-O www.encolabs.com Blank (8123001-BLK1) Continued Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 �Analyte %REC RPD Result Flag MRL Units %REC Limits Limit Notes 2,4-Dichlorophenol 2.6 U 10 ug/L 2,4-Dimethylphenol 2.3 U 10 ug/L 2,4-Dinitrophenol 2.6 U 10 ug/L QV-01 2,4-Dinitrotoluene 2.6 U 10 ug/L 2,6-Dichlorophenol 2.0 U 10 ug/L 2,6-Dinitrotoluene 2.5 U 10 ug/L 2-Acetylaminofluorene 3.1 U 10 ug/L QV-01 2-Chloronaphthalene 2.8 U 10 ug/L 2-Chlorophenol 2.2 U 10 ug/L 2-Methyl-4,6-dinitrophenol 3.3 U 10 ug/L 2-Methylnaphthalene 2.8 U 10 ug/L 2-Methylphenol 2.0 U 10 ug/L 2-Naphthylamine 3.0 U 10 ug/L 2-Nitroaniline 2.5 U 10 ug/L 2-Nitrophenol 1.1 U 10 ug/L 3 & 4-Methylphenol 2.1 U 10 ug/L 3,3'-Dichlorobenzidine 3.5 U 10 ug/L 3,3'-Dimethylbenzidine 2.2 U 10 ug/L 3-Methylcholanthrene 1.3 U 10 ug/L 3-Nitroaniline 2.6 U 10 ug/L QV-02 4-Aminobiphenyl 3.5 U 10 ug/L 4-Bromophenyl-phenylether 2.4 U 10 ug/L 4-Chloro-3-methylphenol 2.4 U 10 ug/L 4-Chloroaniline 2.0 U 10 ug/L 4-Chlorophenyl-phenylether 2.6 U 10 ug/L 4-Nitroaniline 3.2 U 10 ug/L 4-Nitrophenol 2.8 U 10 ug/L 5-Nitro-o-toluidine 3.2 U 10 ug/L QV-01 7,12-Dimethylbenz(a)anthracene 1.4 U 10 ug/L Acenaphthene 2.7 U 10 ug/L Acenaphthylene 2.6 U 10 ug/L Acetophenone 2.0 U 10 ug/L Anthracene 2.4 U 10 ug/L Benzo(a)anthracene 2.4 U 10 ug/L Benzo(a)pyrene 2.2 U 10 ug/L Benzo(b)fluoranthene 2.8 U 10 ug/L Benzo(g,h,i)perylene 2.4 U 10 ug/L Benzo(k)fluoranthene 2.4 U 10 ug/L Benzyl alcohol 2.4 U 10 ug/L Bis(2-chloroethoxy)methane 2.4 U 10 ug/L Bis(2-chloroethyl)ether 2.6 U 10 ug/L Bis(2-chloroisopropyl)ether 2.5 U 10 ug/L Bis(2-ethylhexyl)phthalate 6.3 5.0 ug/L 0-01 Butylbenzylphthalate 3.8 U 10 ug/L Chlorobenzilate 2.4 U 10 ug/L Chrysene 2.2 U 10 ug/L Diallate 1.9 U 10 ug/L Dibenzo(a,h)anthracene 2.3 U 10 ug/L Dibenzofuran 2.6 U 10 ug/L Page 71 of 83 QUALITY CONTROL Semivolatile Organic Compounds by GCMS - Quality Control Batch 8J23001 - EPA 3510C M5 (� 0a www.encolabs.com Blank (8323001-BLK1) Continued Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Diethylphtha late 2.4 U 10 ug/L Dimethoate 2.3 U 10 ug/L Dimethylphthalate 2.5 U 10 ug/L Di-n-butylphthalate 2.8 U 10 ug/L Di-n-octylphthalate 3.1 U 10 ug/L Disulfoton 2.0 U 10 ug/L Ethyl methanesulfonate 2.2 U 10 ug/L Famphur 2.7 U 10 ug/L Fluoranthene 3.1 U 10 ug/L Fluorene 2.5 U 10 ug/L Hexachlorobenzene 2.3 U 10 ug/L Hexachlorobutadiene 2.8 U 10 ug/L Hexachlorocyclopentadiene 2.7 U 10 ug/L Hexachloroethane 2.6 U 10 ug/L Hexachloropropene 6.8 U 10 ug/L Indeno(1,2,3-cd)pyrene 2.2 U 10 ug/L Isodrin 1.5 U 10 ug/L Isophorone 2.5 U 10 ug/L Isosafrole 2.2 U 10 ug/L Kepone 7.2 U 20 ug/L Methapyrilene 4.8 U 10 ug/L QV-01 Methyl Methanesulfonate 2.2 U 10 ug/L Methyl parathion 2.5 U 10 ug/L Nitrobenzene 2.5 U 10 ug/L N-Nitrosodiethylamine 2.1 U 10 ug/L N-Nitrosodimethylamine 1.9 U 10 ug/L N-Nitrosodi-n-butylamine 2.0 U 10 ug/L N-Nitroso-di-n-propylamine 2.3 U 10 ug/L N-nitrosodiphenylamine/Diphenylamine 2.5 U 10 ug/L N-Nitrosomethylethylamine 1.9 U 10 ug/L N-Nitrosopiperidine 2.1 U 10 ug/L N-Nitrosopyrrolidine 1.9 U 10 ug/L 0,0,0-Triethyl phosphorothioate 2.2 U 10 ug/L o-Toluidine 1.6 U 10 ug/L Parathion 1.7 U 10 ug/L QV-01 p-Dimethylaminoazobenzene 2.6 U 10 ug/L Pentachlorobenzene 2.7 U 10 ug/L Pentachloronitrobenzene 1.9 U 10 ug/L Phenacetin 2.7 U 10 ug/L Phenanthrene 2.6 U 10 ug/L Phenol 1.7 U 10 ug/L Phorate 2.1 U 10 ug/L Pronamide 1.7 U 10 ug/L Pyrene 3.5 U 10 ug/L Safrole 2.2 U 10 ug/L Thionazin 2.3 U 10 ug/L Surrogate: 2,4,6-Tribromophenol 84 ug/L 100 84 10-179 Surrogate:2-Fluorobiphenyl 56 ug/L 50.0 112 10-149 Page 72 of 83 QUALITY CONTROL Semivolatile Organic Compounds by GCMS - Quality Control Batch 8J23001 - EPA 3510C MS (� �C-O www.encolabs.com Blank (8123001-BLK1) Continued Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 �Analyte Spike Source %REC RPD Result Flag Level Result %REC Limits RPD-1 Limit Notes Surrogate: 2-Fluorophenol 58 ug/L 100 56 10-110 Surrogate: Nitrobenzene-d5 44 ug/L 50.0 88 10-149 Surrogate: Phenol-d5 42 ug/L 100 42 10-88 Surrogate: Terphenyl--d14 55 ug/L 50.0 110 10-188 - - - - - - - - - - - LCS (8323001-BS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:50 - - Spike Source %REC IIIW RPD Result MRL Units Level Result %REC Limits Limit Notes 2-Chlorophenol 42 10 ug/L 50.0 83 40-109 4-Chloro-3-methylphenol 45 10 ug/L 50.0 90 58-121 4-Nitrophenol 39 10 ug/L 50.0 79 33-105 Acenaphthene 51 10 ug/L 50.0 102 39-125 N-Nitroso-di-n-propylamine 47 10 ug/L 50.0 95 48-126 Phenol 26 10 ug/L 50.0 52 19-78 Pyrene 56 10 ug/L 50.0 112 44-137 Surrogate:2,4,6-Tribromophenol 120 ug/L 100 123 10-179 Surrogate.2-Fluorobiphenyl 50 ug/L 50.0 101 10-149 Surrogate: 2-Fluorophenol 61 ug/L 100 61 10-110 Surrogate: Nitrobenzene-d5 46 ug/L 50.0 91 10-149 Surrogate: Phenol-d5 49 ug/L 100 49 10-88 Surrogate: Terphenyl-d14 63 ug/L 50.0 127 10-188 Matrix Spike (8323001-MS3) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 16:22 Source:CB16363-01 Spike Source %REC RPD Result F1 Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 43 10 ug/L 50.0 2.2 U 86 40-109 4-Chloro-3-methylphenol 46 10 ug/L 50.0 2.4 U 91 58-121 4-Nitrophenol 40 10 ug/L 50.0 2.8 U 80 33-105 Acenaphthene 51 10 ug/L 50.0 2.7 U 101 39-125 N-Nitroso-di-n-propylamine 47 10 ug/L 50.0 2.3 U 95 48-126 Phenol 29 10 ug/L 50.0 1.7 U 58 19-78 Pyrene 50 10 ug/L 50.0 3.5 U 100 44-137 Surrogate.,2,4,6-Tribromophenol 120 ug/L 100 120 10-179 Surrogate.2-Fluorobiphenyl 51 ug/L 50.0 101 10-149 Surrogate:2-Fluorophenol 66 ug/L 100 66 10-110 Surrogate: Nitrobenzene-d5 45 ug/L 50.0 91 10-149 Surrogate: Phenol-d5 55 ug/L 100 55 10-88 Surrogate: Terphenyl-d14 57 ug/L 50.0 113 10-188 Matrix Spike Dup (8J23001-MSD1) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 16:53 Source:CB16363-01 Spike Source %REC RPD Analyte Flag MRL Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 44 10 ug/L 50.0 2.2 U 88 40-109 2 22 4-Chloro-3-methylphenol 49 10 ug/L 50.0 2.4 U 97 58-121 7 22 4-Nitrophenol 48 10 ug/L 50.0 2.8 U 96 33-105 18 27 Page 73 of 83 QUALITY CONTROL Semivolatile Organic Compounds by GCMS - Quality Control Batch 8J23001 - EPA 3510C M5 (� 0a www.encolabs.com Matrix Spike Dup (8323001-MSD3) Continued Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 16:53 Source: CB16363-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Acenaphthene 51 10 ug/L 50.0 2.7 U 103 39-125 1 25 N-Nitroso-di-n-propylamine 48 10 ug/L 50.0 2.3 U 96 48-126 2 23 Phenol 30 10 ug/L 50.0 1.7 U 59 19-78 2 18 Pyrene 54 10 ug/L 50.0 3.5 U 108 44-137 7 24 Surrogate: 2,4,6-Tribromophenol 130 ug/L 100 127 10-179 Surrogate:2-Fluorobiphenyl 50 ug/L 50.0 100 10-149 Surrogate:2-Fluorophenol 65 ug/L 100 65 10-110 Surrogate: Nitrobenzene-d5 46 ug/L 50.0 93 10-149 Surrogate: Phenohd5 55 ug/L 100 55 10-86 Surrogate: Terphenyl-d14 60 ug/L 50.0 120 10-168 - - - - - - - - - - - - - - - - - - - - - - - Metals by EPA 6000/7000 Series Methods - Quality Control Batch SK01028 - EPA 245.1 Blank (8K03028-BLK3) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:26 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury - - - - - - - - - - - - - 0.150 - - - - - U - - - 0.200 - - - - ug/L - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LCS (8K01028-BS1) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:28 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury 5.51 0.200 ug/L 5.00 110 80-120 - - - - - - - - - - - - - Matrix Spike (8K03028-MS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:33 - - - - - - - - Source: CB15729-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury 5.11 0.200 ug/L 5.00 0.150 U 102 75-125 Matrix Spike Dup (8K01028-MSD1) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:36 Source: CB15729-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury - - - - - - - - - - - - - - 5.07 - - - - - - - 0.200 - - - - ug/L - - - - 5.00 - - - - 0.150 U - - - - 101 75-125 0.8 - - - - - - - - - - - - 25 - - - - - - - - Post Spike (8K03028-PS1) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:38 Source: CB15729-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Mercury 5.28 0.200 ug/L 5.00 0.0710 104 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8J27003 - EPA 3005A Page 74 of 83 (� 0a www.encolabs.com QUALITY CONTROL Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8J27003 - EPA 3005A Blank (8727003-BLK1) Prepared: 10/27/2018 12:51 Analyzed: 10/29/2018 12:43 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.85 3 10.0 ug/L Silver 1.90 U 10.0 ug/L Tin 2.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L - - - - - - - - - - - - - LCS (8727003-BS1) - - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/27/2018 - - - - - - - - - - - 12:51 Analyzed: 10/29/2018 12:48 - - - - - - - - �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 176 10.0 ug/L 200 88 80-120 Barium 189 10.0 ug/L 200 94 80-120 Beryllium 18.8 1.00 ug/L 20.0 94 80-120 Cadmium 19.0 1.00 ug/L 20.0 95 80-120 Chromium 182 10.0 ug/L 200 91 80-120 Cobalt 184 10.0 ug/L 200 92 80-120 Copper 180 10.0 ug/L 200 90 80-120 Lead 189 10.0 ug/L 200 95 80-120 Nickel 185 10.0 ug/L 200 93 80-120 Silver 189 10.0 ug/L 200 95 80-120 Tin 181 10.0 ug/L 200 90 80-120 Vanadium 178 10.0 ug/L 200 89 80-120 Zinc 189 10.0 ug/L 200 94 80-120 - - - - - - - - - - - - - Matrix Spike (8327003-MS1) - - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/27/2018 - - - - - - - - - - - 12:51 Analyzed: 10/29/2018 12:51 - - - - - - - - Source: CB16079-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 181 10.0 ug/L 200 7.60 U 90 75-125 Barium 196 10.0 ug/L 200 10.0 93 75-125 Beryllium 18.3 1.00 ug/L 20.0 0.160 U 92 75-125 Cadmium 18.6 1.00 ug/L 20.0 0.360 U 93 75-125 Chromium 179 10.0 ug/L 200 1.40 U 89 75-125 Cobalt 183 10.0 ug/L 200 1.40 U 91 75-125 Copper 176 10.0 ug/L 200 1.60 U 88 75-125 Lead 181 10.0 ug/L 200 3.10 U 90 75-125 Nickel 182 10.0 ug/L 200 2.20 U 91 75-125 Silver 185 10.0 ug/L 200 1.90 U 92 75-125 Tin 179 10.0 ug/L 200 2.90 U 90 75-125 Vanadium 178 10.0 ug/L 200 2.92 88 75-125 Zinc 187 10.0 ug/L 200 4.40 U 94 75-125 Page 75 of 83 (� �C-O www.encolabs.com QUALITY CONTROL Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8J27003 - EPA 3005A - - - - - - - - - - - - - - Matrix Spike Dup (8327003-MSD1) - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/27/2018 - - - - - - - - - - - 12:51 Analyzed: 10/29/2018 13:01 - - - - - - - - Source:CB16079-01 �Analyte Spike Source %REC Result FMJ MRL Units Level Result %REC Limits Arsenic 191 10.0 ug/L 200 7.60 U 96 75-125 6 20 Barium 209 10.0 ug/L 200 10.0 99 75-125 6 20 Beryllium 19.1 1.00 ug/L 20.0 0.160 U 95 75-125 4 20 Cadmium 20.0 1.00 ug/L 20.0 0.360 U 100 75-125 7 20 Chromium 186 10.0 ug/L 200 1.40 U 93 75-125 4 20 Cobalt 195 10.0 ug/L 200 1.40 U 98 75-125 7 20 Copper 184 10.0 ug/L 200 1.60 U 92 75-125 5 20 Lead 197 10.0 ug/L 200 3.10 U 99 75-125 9 20 Nickel 189 10.0 ug/L 200 2.20 U 95 75-125 4 20 Silver 189 10.0 ug/L 200 1.90 U 94 75-125 2 20 Tin 195 10.0 ug/L 200 2.90 U 98 75-125 9 20 Vanadium 185 10.0 ug/L 200 2.92 91 75-125 4 20 Zinc 203 10.0 ug/L 200 4.40 U 101 75-125 8 20 - - - - - - - - - - - - - - Post Spike (8327003-PSI) - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/27/2018 - - - - - - - - - - - 12:51 Analyzed: 10/29/2018 13:03 - - - - - - - - Source:CB16079-01 �Analyte Spike Source %REC RPD Units Level Result %REC Limits RPD Limit Notes Arsenic 0.189 0.0100 mg/L 0.200 0.00236 93 80-120 Barium 0.207 0.0100 mg/L 0.200 0.0100 98 80-120 Beryllium 0.0193 0.00100 mg/L 0.0200 8.30E-5 96 80-120 Cadmium 0.0197 0.00100 mg/L 0.0200 0.000162 98 80-120 Chromium 0.190 0.0100 mg/L 0.200 -0.000139 95 80-120 Cobalt 0.193 0.0100 mg/L 0.200 0.000828 96 80-120 Copper 0.186 0.0100 mg/L 0.200 -0.000106 93 80-120 Lead 0.193 0.0100 mg/L 0.200 0.00170 96 80-120 Nickel 0.193 0.0100 mg/L 0.200 0.000228 97 80-120 Silver 0.288 0.0100 mg/L 0.200 0.000467 144 80-120 QM-08 Tin 0.193 0.0100 mg/L 0.200 0.00181 95 80-120 Vanadium 0.186 0.0100 mg/L 0.200 0.00292 92 80-120 Zinc - - - - 0.201 - - - - - - - 0.0100 - - - - mg/L - - - - 0.200 - - - - 0.00168 - - - - - 99 - - - 80-120 - - - - - - - - - Batch 8J27004 - EPA 3005A Blank (8J27004-BLK1) Prepared: 10/27/2018 12:54 Analyzed: 10/30/2018 10:47 �Analyte INK Spike Source %REC RPD Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Selenium 0.910 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L - - - - - - - - - - - - - - LCS (8127004-BSI) - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/27/2018 - - - - - - - - - - - 12:54 Analyzed: 10/30/2018 10:55 - - - - - - - - Spike Source %REC RPD Analyte Result Flag Units Level Result %REC Limits RPD Limit Notes Antimony 19.9 1.00 ug/L 20.0 99 80-120 Selenium 19.2 1.00 ug/L 20.0 96 80-120 Page 76 of 83 (� 0a www.encolabs.com QUALITY CONTROL Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8J27004 - EPA 3005A LCS (8127004-BS3) Continued Prepared: 10/27/2018 12:54 Analyzed: 10/30/2018 10:55 Spike Source %REC RPD �Analyte Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Thallium 19.8 1.00 ug/L 20.0 99 80-120 Matrix Spike (8327004-MS3) Prepared: 10/27/2018 12:54 Analyzed: 10/30/2018 10:59 Source: CB13757-01REI �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Antimony 99.2 5.00 ug/L 100 1.85 U 99 75-125 Selenium 95.8 5.00 ug/L 100 4.55 U 96 75-125 Thallium 98.1 5.00 ug/L 100 0.550 U 98 75-125 - - - - - - - - - - - - - - Matrix Spike Dup (8327004-MSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/27/2018 12:54 Analyzed: 10/30/2018 11:04 - - - - - - - - Source: CB13757-01RE1 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Antimony 97.7 5.00 ug/L 100 1.85 U 98 75-125 1 20 Selenium 89.4 5.00 ug/L 100 4.55 U 89 75-125 7 20 Thallium 100 5.00 ug/L 100 0.550 U 100 75-125 2 20 - - - - - - - - - - - - - - Post Spike (8727004-PS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/27/2018 12:54 Analyzed: 10/30/2018 11:08 - - - - - - - - Source: CB13757-01REI �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Antimony 20.6 1.00 ug/L 20.0-0.00708 103 75-125 Selenium 17.9 1.00 ug/L 20.0 0.100 89 75-125 Thallium - - - - - - - - - - - - - - 20.3 - - - - - - - 1.00 - - - - ug/L - - - - 20.0 0.00461 101 75-125 - - - - - - - - - - - - - - - - - - - - - - - - - - - - Batch SJ29026 - EPA 3005A Blank (8729028-BLKI) Prepared: 10/29/2018 13:07 Analyzed: 10/30/2018 12:47 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (8129028-BSI) Prepared: 10/29/2018 13:07 Analyzed: 10/30/2018 12:52 Spike Source %REC RPD �Analyte Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Page 77 of 83 (� �C-O www.encolabs.com QUALITY CONTROL Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8J29028 - EPA 3005A LCS (8329028-BSI) Continued Prepared: 10/29/2018 13:07 Analyzed: 10/30/2018 12:52 Lalyte Spike Source %REC Rak Flag MRL Units Level Result %REC Limits RP Notes Arsenic 175 10.0 ug/L 200 88 80-120 Barium 189 10.0 ug/L 200 95 80-120 Beryllium 18.2 1.00 ug/L 20.0 91 80-120 Cadmium 18.3 1.00 ug/L 20.0 91 80-120 Chromium 180 10.0 ug/L 200 90 80-120 Cobalt 183 10.0 ug/L 200 91 80-120 Copper 176 10.0 ug/L 200 88 80-120 Lead 179 10.0 ug/L 200 90 80-120 Nickel 182 10.0 ug/L 200 91 80-120 Silver 183 10.0 ug/L 200 92 80-120 Vanadium 175 10.0 ug/L 200 87 80-120 Zinc 189 10.0 ug/L 200 95 80-120 - - - - - - - - - - - - - - Matrix Spike (8329028-MS1) - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/29/2018 - - - - - - - - - - - 13:07 Analyzed: 10/30/2018 12:55 - - - - - - - - Source:CB15858-02 Spike Source %REC ir RPD al a MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 173 10.0 ug/L 200 7.60 U 87 75-125 Barium 266 10.0 ug/L 200 87.2 90 75-125 Beryllium 18.4 1.00 ug/L 20.0 0.160 U 92 75-125 Cadmium 17.9 1.00 ug/L 20.0 0.360 U 90 75-125 Chromium 181 10.0 ug/L 200 1.40 U 91 75-125 Cobalt 183 10.0 ug/L 200 2.14 90 75-125 Copper 179 10.0 ug/L 200 1.84 89 75-125 Lead 178 10.0 ug/L 200 3.10 U 89 75-125 Nickel 182 10.0 ug/L 200 2.20 U 91 75-125 Silver 182 10.0 ug/L 200 1.90 U 91 75-125 Vanadium 179 10.0 ug/L 200 1.40 U 89 75-125 Zinc 190 10.0 ug/L 200 4.40 U 95 75-125 - - - - - - - - - - - - - - Matrix Spike Dup (8329028-MSD1) - - - - - - - - - - - - - - - - - - - - Prepared: - - - - 10/29/2018 - - - - - - - - - - - 13:07 Analyzed: 10/30/2018 12:57 - - - - - - - - Source:CB15858-02 Spike Source %REC WF RPD ff MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 172 10.0 ug/L 200 7.60 U 86 75-125 1 20 Barium 266 10.0 ug/L 200 87.2 89 75-125 0.3 20 Beryllium 18.3 1.00 ug/L 20.0 0.160 U 92 75-125 0.6 20 Cadmium 18.1 1.00 ug/L 20.0 0.360 U 90 75-125 0.7 20 Chromium 180 10.0 ug/L 200 1.40 U 90 75-125 0.7 20 Cobalt 184 10.0 ug/L 200 2.14 91 75-125 0.6 20 Copper 182 10.0 ug/L 200 1.84 90 75-125 1 20 Lead 183 10.0 ug/L 200 3.10 U 91 75-125 3 20 Nickel 181 10.0 ug/L 200 2.20 U 90 75-125 0.4 20 Silver 183 10.0 ug/L 200 1.90 U 92 75-125 0.5 20 Vanadium 177 10.0 ug/L 200 1.40 U 89 75-125 1 20 Zinc - - - - - - - - - - - - - - 193 - - - - 10.0 - - - - - - - ug/L - - - - 200 - - - - - 4.40 U - - - - 96 - - - 75-125 - - - - 1 - - - - 20 - - - - - - - - Page 78 of 83 (� 0a www.encolabs.com QUALITY CONTROL Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8J29028 - EPA 3005A Post Spike (8729028-PS3) Source: CB15858-02 Prepared: 10/29/2018 13:07 Analyzed: 10/30/2018 13:00 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.192 0.0100 mg/L 0.200 -0.00350 96 80-120 Barium 0.279 0.0100 mg/L 0.200 0.0872 96 80-120 Beryllium 0.0195 0.00100 mg/L 0.0200 -6.50E-5 98 80-120 Cadmium 0.0197 0.00100 mg/L 0.0200 -0.000225 98 80-120 Chromium 0.192 0.0100 mg/L 0.200 -3.59E-5 96 80-120 Cobalt 0.197 0.0100 mg/L 0.200 0.00214 97 80-120 Copper 0.191 0.0100 mg/L 0.200 0.00184 94 80-120 Lead 0.194 0.0100 mg/L 0.200 -0.00279 97 80-120 Nickel 0.193 0.0100 mg/L 0.200 0.000880 96 80-120 Silver 0.232 0.0100 mg/L 0.200 -0.000710 116 80-120 Vanadium 0.188 0.0100 mg/L 0.200 0.000846 94 80-120 Zinc - - - - - - - - - - - - 0.208 - - - - - - - - - 0.0100 - - - - mg/L - - - - 0.200 - - - - 0.00307 - - - - - 102 - - - 80-120 - - - - - - - - - - - - - - - - Classical Chemistry Parameters - Quality Control Batch SJ22035 - NO PREP Blank (8322035-BLKI) Prepared: 10/22/2018 18:10 Analyzed: 10/22/2018 18:20 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Sulfide 0.010 U 0.10 mg/L - - - - - - - - - - - - - - LCS (8322035-B51) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/22/2018 18:10 Analyzed: 10/22/2018 18:20 - - - - - - - - �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Sulfide - - - - - - - - - - - - - - 0.35 - - - - - - - 0.10 - - - - mg/L - - - - 0.401 87 80-120 - - - - - - - - - - - - - - - - - - - - - - - - - - - - Duplicate (8322035-DUP1) Prepared: 10/22/2018 18:10 Analyzed: 10/22/2018 18:20 Source: CB15732-09 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Sulfide 0.010 U 0.10 mg/L 0.010 U 25 Matrix Spike (8322035-MS3) Prepared: 10/22/2018 18:10 Analyzed: 10/22/2018 18:20 Source: CB15732-09 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Sulfide 0.092 J 0.10 mg/L 0.401 0.010 U 23 80-120 QM-07 - - - - - - - - - - - - - - Matrix Spike Dup (8322035-MSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/22/2018 18:10 Analyzed: 10/22/2018 18:20 - - - - - - - - Source: CB15732-09 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Sulfide - - - - - - - - - - - - - - 0.093 - - - - 1 - - - 0.10 - - - - mg/L - - - - 0.401 0.010 U 23 80-120 0.6 - - - - - - - - - - - - - - - - - - - - 25 - - - - QM-07 - - - - Batch 8J25012 - Same Page 79 of 83 QUALITY CONTROL Classical Chemistry Parameters - Quality Control (� �C-O www.encolabs.com Blank (8325012-BLK1) Prepared: 10/25/2018 10:55 Analyzed: 10/30/2018 17:30 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 0.0049 U 0.010 mg/L - - - - - - - - - - - - - - LCS (8325012-BS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/25/2018 10:55 Analyzed: 10/30/2018 17:46 - - - - - - - - �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 0.15 0.010 mg/L 0.150 99 85-115 - - - - - - - - - - - - - - Matrix Spike (8325012-MS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/25/2018 10:55 Analyzed: 10/30/2018 17:49 - - - - - - - - Source: CB15854-01 �Analyte Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 0.15 0.010 mg/L 0.150 0.0049 U 101 85-115 - - - - - - - - - - - - - - Matrix Spike Dup (8325012-MSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/25/2018 10:55 Analyzed: 10/30/2018 17:51 - - - - - - - - Source:CB15854-01 �Analyte IF Spike Source %REC RPD Result Flag MRL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) - - - - - - - - - - - - - - 0.14 - - - - - - - 0.010 - - - mg/L - - - - - - 0.150 0.0049 U 95 85-115 6 - - - - - - - - - - - - - - - - - - - 20 - - - - - - - - QUALITY CONTROL Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch SJ30030 - EPA 5030E MS Blank (8330030-BLK1) Prepared: 10/30/2018 14:09 Analyzed: 10/31/2018 02:29 �Analyte Spike Source %REC RPD Result Flag MRL Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Surrogate. Toluene-d8 4.8 ug/L 5.00 95 75-125 - - - - - - - - - LCS (8330030-BSI) - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/30/2018 14:09 Analyzed: 10/31/2018 01:16 - - - - - - - - �Analyte Spike Source %REC RPD Level Result %REC Limits RPD Limit N 1,4-Dioxane 28 2.0 ug/L 25.0 112 80-133 Surrogate: Toluene-d8 5.8 ug/L 5.00 115 75-125 - - - - - - - - LCS Dup (8330030-BSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/30/2018 14:09 Analyzed: 10/31/2018 01:53 - - - - - - - - �Analyte EWUnits Spike Source %REC RP Level Result %REC Limits RPD Li 1,4-Dioxane 27 2.0 ug/L 25.0 109 80-133 2 19 QM-10 Surrogate: Toluene-d8 - - - - - - - - - - - - - 5.0 - - - - - - - - - - - - ug/L - - - - 5.00 100 75-125 - - - - - - - - - - - - - - - - - - - - - - QM-10 - - - - Batch 8J31025 - EPA 50308 MS Blank (8331025-BLK1) Prepared: 10/31/2018 00:00 Analyzed: 10/31/2018 12:25 Spike Source RPD Result Flag MRL Units Level Result D Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Page 80 of 83 (� �Eo www.encolabs.com QUALITY CONTROL Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 8J31025 - EPA 5030E MS Blank (8333025-BLK1) Continued Prepared: 10/31/2018 00:00 Analyzed: 10/31/2018 12:25 �Analyte mMff Spike Source I %REC Result Flag MRL Units Level Result %REC Limits RP Limit Notes Surrogate: Toluene-d8 4.7 u9/L 5.00 94 75-125 - - - - - - - - - - - - - - LCS (8331025-BS1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/31/2018 00:00 Analyzed: 10/31/2018 11:19 - - - - - - - - Lalyte Spike Source %REC RPD Result Level Result %REC Limits IV Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 99 80-133 Surrogate: Toluene-d8 4.8 ug/L 5.00 95 75-125 - - - - - - - - - - - - - - LCS Dup (8331025-BSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/31/2018 00:00 Analyzed: 10/31/2018 11:52 - - - - - - - - Spike Source %REC RPD Analyte Result Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 102 80-133 2 19 QM-10 Surrogate: Toluene-& - - - - - - - - - - - - - 4.7 - - - - - - - - - - - - ug/L - - - - 5.00 94 75-125 - - - - - - - - - - - - - - - - - - - - - - - - QM-10 - - - - Batch 8J31029 - EPA 5030B MS Blank (8333029-BLKI) Prepared: 10/31/2018 14:43 Analyzed:11/01/2018 00:18 �Analyte Spike Source %REC RPD Result Level Result %REC Limits RPD Limit Not 1,4-Dioxane 1.2 U 2.0 ug/L Surrogate: Toluene-d8 5.0 ug/L 5.00 100 75-125 - - - - - - - - - - - - - LCS (8331029-BSI) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/31/2018 14:43 Analyzed: 10/31/2018 22:28 - - - - - Spike Source %REC RPD Analyte Result Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 29 2.0 ug/L 25.0 116 80-133 Surrogate: Toluene-& 5.1 ug/L 5.00 103 75-125 - - - - - - - - - - - - - LCS Dup (8331029-BSD1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prepared: 10/31/2018 14:43 Analyzed: 10/31/2018 23:05 - - - - - rAnalyte Spike Source %REC RPD dh Result Flag MRL Units Level Result %REC Limits RPD Limit Note 1,4-Dioxane 28 2.0 ug/L 25.0 113 80-133 3 19 QM-10 Surrogate: Toluene-& - - - - - - - - - - - - - 4.8 - - - - - - - - - - - - ug/L - - - - 5.00 96 75-125 - - - - - - - - - - - - - - - - - - - - - - - QM-10 - - - - Page 81 of 83 (� 0a www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDQ and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. J-04 Result may be biased high. Associated calibration verification standard exceeded the upper control limit. 0-01 This compound is a common laboratory contaminant. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test). QM-10 LCS/LCSD were analyzed in place of MS/MSD. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. QV-02 The associated continuing calibration verification standard exhibited low bias; the reported result should be considered to be a minimum estimate. Page 82 of 83 E cn uj cc O am U Z m a O N y 7 O y CS cc W N O1 w Q � o a Z w 0 Z aLT O u�� c C L T Z b W '0 o C - T T5 CL -a E v d M x W w m m -2 r U w j m o V U) Z Q .O (6 J ❑ S-OogtVVS aplllnS x x c f)H x x r tgO6 lejol oplueA x x $ x x x x x x x x x Q � `o ErZ A LL uS X X Z xlpuaddd ❑OM x x C) x! �1 WIS �o4Z8'Zueddy go9Z8 p X x ° QI WIS :Do9Z8'6 x!Pueddb 8o9Z9 X x x x X x x X x X v �E U i C7 0 0 0 Ca 0 Ry R' LO N CL n `9 � l(j 1tl L rn L o ,� a a bCn o mCl) t' 0 co 0 CD L Jt e1 U , CD � Y} e x G TO ; CQ A — m �y i1. Qa Y Lo d cv ••^^ � Y e. � � � Ycl CL Q @ CL m m �� C N N La O N Q! z m �'+ mJJI� '\-T �C�7] V+ �O (C�J Vl O! (� Vf iN� L+ (i�� VJ � O� mU) ❑. CD U � �I f tlf� E 1 m 41 � QI F= IY 0 0 d n N m °- � N U � a c O U m ff Q Q In 0 E E E 1 CJ 1, Mo C n m � N m N m v C � E m C m VJ Q : � °)�� Ir d m m t 0 m a a m � ui m _ q U Sample Preservation Verification ENCO Cagy 9 9�: I cEN, 9D Work Order: CB1W79 Project: Sorrell Landfill - Semi -Annual Client: S&ME, Inc. (SM001) Project #: 1054-07-251 Logged In: 20-Oct-18 07:56 Logged By: Rachel Ann Yo ish Preservation Check Performed By: Date/Time: CB16079-01 Cont Type Pres (pH) pH Checked / DatelTme pH Adjusted Reagent Used/Comments M'� Requirement In Control Adjusted A 250mLP+HNO3 <2 Y 1 N/ NA Y N/ NA CB16079-02 Cont ype Type (pH) Requirement pH Checked / In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y f N/ NA Y I N') NA CB16079-03 Cont Type yp Pres (pH) Requirement pH Checked/ In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y 1 N/ NA Y I .,N / NA CB16079-04 Cant Type Pres (pH) pH Checked I In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 N I NA Y/ TN y NA C 250mLP+NaOH >12 N / NA Y / N / NA D 250mLP+ZnAc+NaOH >9 N/ NA Y I I NA CB16079-05 Cant Typ Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time - Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 1 Y I N I NA Y/ N I NA CB16079-06 Cant Type Pres (pH) Requirement pH Checked / Jn Control pH Adjusted Datemme Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y / N I NA Y 1,N / NA CB16079-07 Cont Type yp Pres (pH) Requirement pH Checked 1 in Control Date/Time pH Adjusted Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y/ N I NA Y/ N NA C 250mLP+NaOH >12 Y N/ NA Y N NA D 250mLP+ZnAc+NaOH J 9 Y N/ NA Y N NA CB16079-08 Cant Type Pres (pH) Requirement pH Checked f In Control PH Adjusted DatelT'ime Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 'Y,'1 N I NA Y /',N 1 NA CAelmntlPrintlwko_Preservation Check. rpt Page 1 of 2 Sample Preservation Verification ENCO Ca9 :19D Work Order: C616079 Project: Sorrell Landfill - Semi -Annual Client: S&ME, Inc. (SM001) Project#: 1054-07-251 Logged In: 20-Oct-1$ 07:56 Logged By: Rachel Ann Y�nish I + � �� Preservation Check Performed By: Dateffime: t1,L�11 �7�lrJ,{ 1 CB16079-09 Cant Type ties (pH) Requirement pH Checked / in Control pH Adjusted DateMme Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 Y J N/ NA Y f N :1 NA CB16079-10 Cant Type Pres (pH) pH Checked 1 pH Adjusted Date/Time Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 k Y .i N I NA Y 1', N I NA C816079-11 Cant Type Pres (pH) Requirement pH Checked / In Control pH Adjusted DateMme Adjusted Reagent Used/Comments A .250mLP+HNO3 <2 Y I N/ NA Y I N/ NA Reagent Name ID 1 2 Reagent Name ID 3 4 Rea ent Name ID 5 6 pH Strip ID:. PH Strips C710820 CAelmnt\Printlwko_I`reservdL1U11 1 Nt A Page 2 of 2 Appendix IV - Hydraulic Gradient/ Groundwater Flow Velocity Calculations JOB NAME Sorrell Landfill JOB NO. 1054-07-251 SUBJECT Hydraulic Gradient SHEET NO. 1 of 1 DATE 11/16/2018 PURPOSE: COMPUTED BY AB To determine the average true hydraulic gradient CALCULATION FOR HYDRAULIC GRADIENT r i = (hl-h2)/L 1 Given: Well GW Elevation kA ZONE: hydraulic conductivity 0.25 to 1.13 FT/DAY MW-1R 447.48 D: porosity 0.2 dimensionless MW-9 408.98 'AVG.: AVERAGE HYDRAULIC GRADIENT 0.0270 FT/FT MW-4 440.66 MW-8 437.14 CALCULATED FROM THE AVERAGE OF THREE POINT SOLUTIONS MW-5 389.55 USING MONITOR WELLS MW-1R, MW-9, and MW-4 or MW-8, MW-5 and MW-6 MW-6 404.20 GRADIENT: distance DETERMINED FROM 3 POINT PROBLEM BY PROJECTION iq = MW-1R - MW-9 = 447.48 - 408.98 = 0.0228 distance 1690 Use Elevation of Groundwater at MW-4 to establish elevation between MW-1R and MW-9 MW-1R - MW-4 - 447.48 - 440.66 = 299.37 gradient (MW-lR and MW-9) 0.0228 Draw line from MW-4 to point located 385.10 feet from MW-1R to MW-9. Measure new distance between MW-1R and MW-9 perpendicular to line plotted for the contour. Recalculate Gradient i4 = MW-1R - MW-9 = 447.48 - 408.98 = 0.0272 New Distance 1414 True Hydraulic Gradient = 0.0272 i4 = MW-8 - MW-5 = 437.14 - 389.55 = 0.0274 distance 1734 Use Elevation of Groundwater at MW-6 to establish elevation between MW-8 and MW-5 MW-8 - MW-6 - 437.14 - 404.2 = 1135.86 gradient (MW-8 and MW-5) 0.0290 Draw line from MW-6 to point located 1244.83 feet from MW-8 to MW-5. Measure new distance between MW-8 and MW-5 perpendicular to line plotted for the contour. Recalculate Gradient i4 = MW-8 - MW-5 = 437.14 - 389.55 = 0.0277 New Distance 1719 True Hydraulic Gradient = 0.0277 Average True Hydraulic Gradient = 0.0275 T:1Projectst200TENVt07-251 Sorrell LandfihReports12018 October GW SamplingTeliverableslSorrell Landfill October 2018 Tables.xlsx