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Home My WebLink About9201_Wake_CityofRaleigh_WIldersGrove_MSWLF_CAER_FID1280902_20190215February 15, 2019 Ms. Jaclynne Drummond North Carolina Department of Environmental Quality Asheville Regional Office RE: Corrective Action Evaluation Report City of Raleigh Wilders Grove Landfill Permit No. 92-01 Dear Ms. Drummond: On behalf of the City of Raleigh, URS Corporation — North Carolina is pleased to submit one copy of the Corrective Action Evaluation Report for the Wilders Grove Landfill. This report provides details of the 2010 Corrective Action Plan, groundwater and surface water monitoring, permanganate injections, and modifications to the Corrective Action Plan. If you have any questions regarding this submittal, please contact the undersigned at (919) 461- 1100. Sincerely, URS Corporation — North Carolina Mike Ranck, P.G. Jasen Zinn a, P.E. Project Manager Senior Engineer cc: Stan Joseph, City of Raleigh REPORT CORRECTIVE ACTION EVALUATION REPORT CITY OF RALEIGH WILDERS GROVE LANDFILL PERMIT NO. 92-01 Prepared for City of Raleigh Solid Waste Services 630 Beacon Lake Drive Raleigh, NC 27602 February 15, 2019 L0110 ;:� )k , .-A URS Corporation — North Carolina 1600 Perimeter Park Drive Morrisville, NC 27560 Tel. (919) 461-1100 TABLE OF CONTENTS 1.0 INRODUCTION................................................................................................................................1 1.1 Facility Background.................................................................................................1 1.2 Aquifer Characteristics............................................................................................1 1.3 Contaminant Distribution........................................................................................2 1.3.1 Historical Groundwater Conditions.............................................................2 1.3.2 Current Groundwater Conditions.................................................................2 1.3.3 Current Surface Water Conditions...............................................................2 1.4 Regulatory Status.....................................................................................................2 1.5 Limiting Conditions.................................................................................................3 1.6 Registered Professional Statement...........................................................................3 2.0 MONITORING AND INJECTION PROGRAM..................................................................................4 2.1 Groundwater Monitoring.........................................................................................4 2.1.1 Assessment Monitoring...............................................................................4 2.1.2 MNA Sampling............................................................................................4 2.1.3 Corrective Action Monitoring.....................................................................5 2.2 Surface Water Monitoring.......................................................................................5 2.3 Injection History......................................................................................................5 3.0 CORRECTIVE ACTION SUMMARY................................................................................................ 7 3.1 Physical and Chemical Changes In Aquifer Conditions..........................................7 3.2 Physical and Chemical Changes In Plume Characteristics......................................8 3.2.1 Groundwater Trend Analysis.......................................................................8 3.2.2 Groundwater Geochemistry.......................................................................15 4.0 CORRECTIVE ACTION PLAN MODIFICATIONS.........................................................................16 4.1 Modifications To Selected Remedy.......................................................................16 4.2 Modifications To groundwater monitoring............................................................17 4.2.1 Assessment.................................................................................................17 4.2.2 MNA..........................................................................................................17 5.0 REFERENCES...............................................................................................................................18 TABLE OF CONTENTS TABLES Table 1 Calculated Groundwater Flow Velocities — March 2018 Table 2 Historical Assessment Monitoring Results — VOCs Table 3 Historical Corrective Action Monitoring Results — VOCs Table 4a Historical Assessment Monitoring Results - SVOCs Table 4b Historical Assessment Monitoring Results - Pesticides, Herbicides, and PCB Table 5 Historical Assessment Monitoring Results - Metals Table 6 Historical Surface Water Results - VOCs Table 7 Historical Surface Water Results - Metals Table 8 Current Groundwater Sampling Parameters and Schedule Table 9 Historical MNA and Direct Oxidation Results Table 10 Historical Field Parameters Table 11 Individual Well Mann -Kendall Analysis Results Table 12 Bulk Plume Mann -Kendall Analysis Results Table 13 Proposed Assessment Sampling Parameters and Schedule Table 14 Proposed MNA Sampling Parameters and Schedule FIGURES Figure 1 Site Plan Figure 2 Groundwater Elevation Map, September 2018 Figure 3 Injection Well Locations SECTIONONE Introduction 1.0 INRODUCTION This report has been prepared for submittal to the North Carolina Department of Environmental Quality (NCDEQ) by URS Corporation — North Carolina (URS) on behalf of the City of Raleigh Solid Waste Services. The report provides an evaluation of the groundwater corrective action plan (CAP) and recommends modifications to the CAP for the Wilders Grove Landfill (Site). 1.1 FACILITY BACKGROUND The Site opened in 1972 under permit number 92-01 and is owned and operated by the City of Raleigh. The facility received municipal solid waste (MSW) from Wake County and parts of Johnston County through 1997. The disposal area is approximately 120 acres, separated into three different units. All disposal units are unlined, with no leachate collection system. A site plan is included as Figure 1. An active landfill gas (LFG) extraction system was originally installed in 1987 and operates under a Title V Air Permit (No. 08835T04), issued April 11, 2016. Gas is extracted from 77 wells and is oxidized utilizing a flare located south of the disposal units. Additionally, approximately 21 of the gas extraction wells recover condensate, which is discharged from the site via the sanitary sewer. 1.2 AQUIFER CHARACTERISTICS The Site is located in the Piedmont Physiographic Province of North Carolina. The facility is located within the "Raleigh Belt", which consists of metamorphic rocks of Precambrian to Paleozoic age and granitic intrusions of late Paleozoic -age. Granitic bedrock has been observed at various locations within and immediately adjacent the facility. The uppermost aquifer is unconfined, and consists of unconsolidated, residual soils derived from the underlying bedrock. In general, the landfill is underlain by sandy silts and clays. Groundwater generally flows from the north of the landfill to the south and likely discharges into Crabtree Creek located near the southern property boundary. Crabtree Creek generally flows to the east and discharges into the Neuse River. The average hydraulic gradient in the uppermost aquifer in the vicinity of each well was computed on the basis of the potentiometric contours. Average flow velocity in the vicinity of each well was computed using the hydraulic gradient at each well as well as available hydraulic conductivity and effective porosity data. The hydraulic conductivity and effective porosity are characteristics of the aquifer at each well and are not dependent on groundwater depths. Hydraulic data for each well are presented in Table 1. Additionally, a groundwater elevation map depicting groundwater flow to the south is included as Figure 2. SECTIONONE Introduction 1.3 CONTAMINANT DISTRIBUTION 1.3.1 Historical Groundwater Conditions The Assessment of Corrective Measures (ACM) submitted in October 2008 (Hazen and Sawyer, 2008) mentioned that groundwater monitoring has been performed at the Site since September 1994. The ACM identified benzene and 1,4-dichlorobenzene as the primary contaminants of concern that exceeded the Solid Waste Section Limit (SWSL) and Groundwater Quality Standard (GQS). The standards were updated in January 2010 and as a result, additional organic compounds exceeded their respective SWSL or GQS. In most monitoring wells, concentrations of the organic compounds have decreased over time because of natural attenuation. Historical groundwater analytical concentrations for volatile organic compounds (VOCs) and semi -volatile organic compounds (SVOCs) plus pesticides, herbicides, and polychlorinated biphenyls (PCBs) for assessment monitoring and corrective action are summarized in Table 2, Table 3, Table 4a, and Table 4b, respectively. Inorganic compounds have also historically been detected at concentrations exceeding their SWSL or GQS since January 2010. Historical groundwater analytical concentrations for metals for assessment monitoring are summarized in Table 5. 1.3.2 Current Groundwater Conditions Water samples were collected from 30 monitoring wells and three surface water locations as part of the Assessment and Corrective Action monitoring in September 2018. Prior to purging and sampling activities, the static water levels were gauged in each well to evaluate groundwater flow direction. Details and results of the September 2018 monitoring event were documented in the September 2018 Semi -Annual Groundwater Sampling Report prepared by URS, dated February 15, 2019, and indicate that constituent of concern (COC) concentrations are generally stable or decreasing in most wells, and were consistent with historical results. 1.3.3 Current Surface Water Conditions No constituents were detected above their respective surface water standards in the collected samples during the September 2018 sampling event. However, zinc has occasionally exceeded the surface water standard in the sample collected at SW-1. Current and historical surface water analytical concentrations for VOCs and metals are summarized in Table 6 and Table 7, respectively. 1.4 REGULATORY STATUS Assessment monitoring began in 1994 with the approved Water Quality Management Plan and updated in 2000 as part of the Assessment Monitoring Program. In October 2010, NCDEQ issued approval of the Groundwater Corrective Action Permit Modification Application. SECTIONONE 1.4 REGULATORY STATUS Introduction Assessment monitoring began in 1994 with the approved Water Quality Management Plan and updated in 2000 as part of the Assessment Monitoring Program. In October 2010, NCDEQ issued approval of the Groundwater Corrective Action Permit Modification Application. Subsequently, a CAP for the facility was submitted in December 2010, which recommended monitored natural attenuation (MNA) upgradient with oxidant injections at select locations (downgradient). MNA sampling has been conducted semi-annually since March 2012. 1.5 LIMITING CONDITIONS Historical site information presented in this report was obtained primarily from review and interpretation of available historical data and reports. URS does not assume or accept any responsibility or liability for the quality, accuracy, or completeness of the data included in this report that was not generated by, or on behalf of, URS. 1.6 REGISTERED PROFESSIONAL STATEMENT I, Jasen Zinna, P.E., a Professional Engineer for URS Corporation — North Carolina, do certify that the information contained in this report is correct and accurate to the best of my knowledge. In 15, Jasen Zi a, P.E. = 8 Z Z 0 b 0 = Date URS Co oration — h Carolina �,1i%11aV01\�`\\\`� III SECTIONTWO Monitoring Program 2.0 MONITORING AND INJECTION PROGRAM 2.1 GROUNDWATER MONITORING According to the ACM, groundwater monitoring has been performed at the Site since September 1994. Assessment monitoring began with the approved Water Quality Management Plan and was updated in 2000 as part of the Assessment Monitoring Program. In October 2010, NCDEQ issued approval of the Groundwater Corrective Action Permit Modification Application. Subsequently, a CAP for the facility was submitted in December 2010 (Hazen and Sawyer, 2010), which recommended MNA upgradient with oxidant injections at select locations (downgradient). The complete groundwater monitoring plan is summarized in Table 8 and is detailed in the following subsections. 2.1.1 Assessment Monitoring Assessment groundwater monitoring has been conducted on a semi-annual basis through September 2018, with the exception of annual sampling in 2014. Assessment monitoring includes the semi-annual sampling of 18 compliance groundwater monitoring wells: MW-1, MW-2, MW-3, MW-4, MW-6, MW-8, MW-9, MW-11, MW-12, MW-100S, MW-1001), MW- 1011), MW-102S, MW-103S, MW-104S, MW-104D, MW-105S, and MW-106S. Monitoring well MW-10 was originally included in the sampling plan; however, it was damaged beyond repair by operations equipment in 2011 and was ultimately abandoned by an NC licensed driller. Each groundwater sample is analyzed for all constituents listed in Appendix I plus the additional constituents listed in Appendix II that were detected during the preceding sampling event semi- annually and all constituents listed in Appendix II annually. Additionally, 1,4-dioxane has been added to the sampling list beginning with the September 2018 event per SWS memo dated May 29, 2018. 2.1.2 MNA Sampling MNA sampling has been conducted semi-annually since March 2012 and includes monitoring wells located immediately downgradient of the closed MSW unit and showing exceedances of Groundwater Quality Standards: MW-6, MW-100S, MW-104S, and MW-106S. NCDEQ requires analysis of groundwater samples obtained from MNA wells for the following parameters: nitrate, iron, sulfate, sulfide, methane, ethene/ethane, total organic carbonibiochemical oxygen demand/chemical oxygen demand (TOC/BOD/COD), carbon dioxide, alkalinity, chloride, hydrogen, and volatile fatty acids. Historical MNA analytical data is summarized in Table 9. SECTIONTWO Monitoring Program 2.1.3 Corrective Action Monitoring After the submission of the ACM report to NCDEQ, monitoring wells MW-201 S, MW- 202S/MW-202D, MW-203S, MW-204S, MW-205S/MW-205D, and MW-206D were constructed within the southern portion of the facility. These wells were originally proposed for use as corrective action sentinel wells but VOCs were detected in groundwater samples from these wells, so these wells have since functioned as performance wells. Additionally, because VOCs were observed in these wells, additional monitoring wells MW-207S/MW-207D and MW-208S/MW-208D were constructed closer to Crabtree Creek and a groundwater injection program was implemented in the immediate vicinity of wells MW-202S/MW-202D, MW-203S, MW-205S/MW-205D, and MW-206D. The groundwater injection program is discussed in detail in Section 2.3. Thus, a total of 12 Corrective Action monitoring wells (MW-201 S, MW- 202S/MW-202D, MW-203S, MW-204S, MW-205S/MW-205D, MW-206D, MW-207S/MW- 207D, and MW-208S/MW-208D) are sampled quarterly for parameters included in the approved CAP. Implementation of the groundwater injection program (potassium permanganate) necessitated chemical analyses of the following additional constituents prior to the initial injection event, and during regularly scheduled groundwater sampling events: carbon dioxide, chloride, manganese, and potassium. Monitoring wells (MW-202S/MW-202D, MW-203S, MW-205S/MW-205D, MW-206D, MW-207S/MW-207D, and MW-208S/MW-208D) targeted by the direct oxidation remedy are sampled for these parameters. Historical direct oxidation analytical data is summarized in Table 9. 2.2 SURFACE WATER MONITORING Surface water sampling is conducted semi-annually at two locations along Crabtree Creek and one location along a perennial stream that discharges into Crabtree Creek. The water samples are analyzed for all Appendix I constituents and 1,4-dioxane. Surface water sampling locations are depicted in Figure 1. 2.3 INJECTION HISTORY Potassium permanganate injections for the direct oxidation of contaminants in the area of wells targeted by the oxidant remedy (MW-202S/MW-202D, MW-203S, MW-205S/MW-205D, and MW-206D) began in November 2012. Four permanent injection wells were installed; IW-15 was installed upgradient of MW-202S/MW-202D; IW-12 was installed upgradient of MW-203 S; IW-5 was installed upgradient of MW-205S/MW-205D; and IW-4 was installed upgradient of MW-206D. Injection well locations are depicted in Figure 3. SECTIONTWO Monitoring Program The first injection, which was performed on November 19, 2012, involved the injection of 400 gallons of six percent by weight potassium permanganate fluid into injection wells IW-4, IW-5, IW-12, and IW-15 (100 gallons per well). The second injection, performed on May 15, 2013, included 100 gallons of six percent by weight potassium permanganate fluid into IW-5, and 50 gallons each into IW-4, IW-12, and IW-15. Injection events three through seven were performed on April 24, 2014, July 29, 2014, February 9, 2016, August 29, 2017, and December 21, 2017, respectively. Each of these injection events involved the injection of 400 gallons of six percent by weight potassium permanganate fluid into wells IW-4, IW-5, IW-12, and IW-15, with 100 gallons injected into each well. SECTIONTHREE Corrective Action Summary 3.0 CORRECTIVE ACTION SUMMARY The selected and approved remedy is chemical oxidation of organic constituents in groundwater with active LFG extraction and MNA. The gas extraction system was expected to remove moisture and VOCs from the waste mass to help concentrations in the groundwater decrease. MNA sampling was approved for MW-6, MW-100S, MW-104S, and MW-106S and direct oxidation monitoring was approved for MW-202S, MW-2021), MW-203 S, MW205 S, MW- 2051), MW-2061), MW-207S, MW-2071), MW-208S, and MW-2081). After four baseline sampling events were completed, a revised MNA parameter list was to be approved, however, this was never completed and thus a full list of MNA parameters has been sampled for each event. The CAP proposed the installation of permanent injection wells near MW-202D (IW-15), MW- 203S (IW-12), MW-205D (IW-5), and MW-206D (IW-4). Injection wells IW-4 (55 feet below ground surface [bgs]) and IW-5 (55 feet bgs) were to be installed in bedrock and IW-12 (40 feet bgs) and IW-15 (43 feet bgs) were to be installed in saprolite. Additionally, if any COC exceeded their respective GQS or SWSL for multiple consecutive sampling events in MW-202S, MW-2021), MW-203S, MW-204S, MW-205S, MW-2051), and MW-2061), then additional injection wells would be installed. No additional injection wells have been installed to date. In order to monitor effects from the direct oxidation, groundwater samples collected from the area monitoring wells were analyzed for chloride, carbon dioxide, potassium, and manganese. If elevated levels of manganese were detected in any of the monitoring wells following an injection event, it would indicate the oxidant was influencing the well. Elevated manganese levels were consistently detected in MW-202D while elevated manganese levels were occasionally detected in MW-207S. All other correction action monitoring wells did not have a significant increase in manganese levels to indicate permanganate influence. 3.1 PHYSICAL AND CHEMICAL CHANGES IN AQUIFER CONDITIONS The source of impacted groundwater is presumed to be the unlined MSW landfill. The contamination is transported via LFG and/or precipitation that percolates through the waste and migrates down to the groundwater. Since groundwater monitoring began in 1994, concentrations of contaminants have decreased. Field parameters pH, temperature, conductivity, dissolved oxygen, and oxidation-reduction potential (ORP) have been collected from monitoring wells semi-annually since March 2012. The values have fluctuated; however, they have remained stable. Historical field parameters are included in Table 10. SECTIONTHREE Corrective Action Summary 3.2 PHYSICAL AND CHEMICAL CHANGES IN PLUME CHARACTERISTICS As of 2010, the following organic constituents exceeded their GQS and were considered a COC: - Benzene - BHC-alpha - BHC-beta - BHC-gamma - Bis(2-thylhexyl) phthalate - 1,4-dichlorobenzene - 1,2-dichloroethane - 1,2-dichloropropane - Heptachlor - Naphthalene - Tetrachloroethene - Trans-1,2-dichloroethene - Trichloroethene - Vinyl chloride Additionally, the following inorganic constituent was considered a COC: - Cobalt Based on recent groundwater sampling events, the following organic constituents are considered COCs: - Benzene - 1,4-dichlorobenzene - 1,2-dichloroethane - 1,2-dichloropropane - 1,1-dichloroethane - Tetrachloroethene - Vinyl chloride - 1,4-dioxane Additionally, the following inorganic constituents are considered COCs: - Cobalt -Thallium Since vanadium has routinely exceeded the Interim Maximum Allowable Concentration (IMAC) in the background well (MW-4) it was not considered a COC. Additionally, since natural concentrations of barium are typically high in the Raleigh area, barium is not considered a COC. 3.2.1 Groundwater Trend Analysis Groundwater data collected from September 2012 to September 2018 were subjected to trend analysis using the Monitoring and Remediation Optimization System (MAROS) software. The MAROS software was utilized to perform the following: • Non -parametric trend analysis (Mann -Kendall) for tetrachloroethene, trichloroethene, vinyl chloride, benzene, 1,4-dichlorobenzene, 1,2-dichloropropane, 1,1-dichloroethane, 1,2-dichloroethane, barium, cobalt, and thallium for each individual well. • Bulk plume analysis in which the total dissolved mass, center of mass, and spread of mass about the center of the plume were calculated. These parameters were then SECTIONTHREE Corrective Action Summary subjected to a Mann -Kendall analysis to evaluate trends. Bulk plume parameters were calculated for the chemicals listed above. The results of the Mann -Kendall analysis for each individual well and surface water sampling point are summarized in Table 11. This analysis demonstrates that the majority of sampling points have concentration trends that are stable, decreasing, or exhibits no discernible trend for each chemical. Furthermore, of the well/chemical combinations that exhibit increasing concentrations, the majority of these instances have chemical concentrations that are below applicable GQS or IMAC. The only instances of increasing trends above applicable GQS or IMAC are vinyl chloride, benzene, and 1,1-dichlorethane at MW-104D; cobalt at MW-105S, MW-204S, MW-9, and MW-12; and thallium at MW-105S and MW-11. Cobalt has an increasing trend at surface water sample SW-2, but this location is located upstream of the landfill, and thus this trend is likely indicative of natural fluctuation of the surface water. The results of the Mann -Kendall analysis for the bulk plume statistics are summarized in Table 12. Bulk plume statistics were calculated separately for shallow and deep wells. The bulk plume parameters calculated for each chemical are described below. Additional information regarding each of these parameters is presented in GSI Environmental, Inc. (GSI, 2012). • Zeroth Moment — an estimate of total dissolved mass based on groundwater concentrations and assumed soil porosity. The trend analysis of this parameter indicates the change in plume mass over time and is the key parameter in interpreting overall plume stability. • First Moment — an estimate of the center of mass of each chemical, presented in State Plane northing/easting coordinates. The trend analysis of this parameter indicates if the center of mass is moving over time, relative to the prevailing groundwater flow direction. An increasing first moment trend can occur in plumes that have increasing, decreasing, or stable plume mass (zeroth moment). From a plume stability perspective, an increasing first moment is only of concern if the plume also has an increasing zeroth moment or is near a downgradient receptor. • Second Moment — an estimate of the spread of the chemical relative to the center of mass. The trend analysis of this parameter is indicative of the spreading of the chemical over time. This value is presented as two separate values, X and Y, which indicate the spreading axially or perpendicularly (respectively) to the prevailing groundwater flow direction. Similar to the first moment, an increasing second moment trend can occur in plumes that have increasing, decreasing, or stable plume mass (zeroth moment). From a plume stability perspective, an increasing second moment is only of concern if the plume also has an increasing zeroth moment or is near a downgradient receptor. SECTIONTHREE Corrective Action Summary No shallow wells were observed to have an increasing plume mass for site COCs (zeroth moment). An increasing first moment (center of mass location) trend was observed for tetrachloroethene, trichloroethene, and cobalt. Several compounds also had increasing second moment trends over the analysis period (Table 12). The increasing first and second moment trends indicate that some constituents are slightly expanding, which is a common occurrence and can be attributed to advection and dispersion mechanisms. However, these changes in plume dimension do not pose a risk to off -site transport as only cobalt exceeds its GQS in shallow wells located closest to Crabtree Creek (200 series monitoring wells), but this compound does not have a surface water standard (North Carolina 15A NCAC 02B). For deep wells, only cobalt had an increasing plume mass trend over the analysis period. However, the GQS is only consistently exceeded for this compound in monitoring wells MW- 100D and MW-208D. Many VOCs had probably increasing/increasing first and second moment trends (Table 12). The increasing first and second moment trends indicate that some constituents are slightly expanding, which is a common occurrence and can be attributed to advection and dispersion mechanisms. However, these changes in plume dimension do not pose a risk to off -site transport as only vinyl chloride in well MW-205D and cobalt in MW-208D have been detected above their GQS in wells located closest to Crabtree Creek. Vinyl chloride was not detected in surface water throughout the sampling period and cobalt does not have a surface water standard. A summary of the COCs and trends since 2012 in each well that has had detections/exceedances are discussed below: • MW-1 o Cobalt is stable, ranging between 0.38 and 12 parts per billion (ppb). o Thallium is stable, ranging between non -detect and 0.39 ppb. The IMAC has only been exceeded once (September 2017). • MW-2 o Benzene has been decreasing, ranging between 1.7 and 4.4 ppb. 0 1,4-dichlorobenzene is stable, ranging between 6.8 and 13 ppb. 0 1,2-dichloroethane has been decreasing, ranging between non -detect and 2.4 ppb. 0 1,4-dioxane exceeds but has only been sampled once so no trends have been established. o Vinyl chloride has been decreasing, ranging between non -detect and 1.4 ppb. o Cobalt has been decreasing, ranging between 2.8 and 11 ppb. SECTIONTHREE Corrective Action Summary • MW-3 o Benzene has been stable, ranging between 0.80 and 2.7 ppb. 0 1,4-dichlorobenzene has been stable, ranging between 9.3 and 15 ppb. • MW-6 0 1,4-dichlorobenzene has been decreasing, the GQS has not been exceeded since September 2013. 0 1,4-dioxane exceeds but has only been sampled once so no trends have been established. o Cobalt has no trend, ranging between 16 and 86 ppb. • MW-8 0 1,4-dichlorobenzene has been stable, the GQS has not been exceeded since September 2013. o Cobalt has no trend, ranging between 1.2 and 17 ppb. • MW-9 o Cobalt has an increasing trend, ranging between 4.7 and 23 ppb. • MW-11 o Benzene has no trend, ranging between 0.30 and 1.9 ppb. 0 1,4-dichlorobenzene has no trend, the GQS has not been exceeded since September 2013. o Cobalt has no trend, ranging between 6.7 and 344 ppb. o Thallium has an increasing trend ranging from non -detect to 5.0 ppb, however, the IMAC has not been exceeded since September 2017. • MW-12 o Benzene has been stable, ranging between non -detect and 2.7 ppb. The GQS has not been exceeded since March 2016. 0 1,4-dichlorobenzene has been probably decreasing, ranging between non -detect and 11 ppb. The GQS has not been exceeded since March 2016. o Cobalt has been probably increasing, ranging between 2.3 and 66 ppb. o Thallium has no trend, ranging between 0.07 and 0.86 ppb. The IMAC has not been exceeded since September 2017. SECTIONTHREE Corrective Action Summary • MW-100S o Cobalt has no trend, ranging between non -detect and 4.3 ppb. The IMAC has not been exceeded since September 2016. o Thallium has been stable, ranging between non -detect and 0.27 ppb. The IMAC has only been exceeded once (September 2016). • MW-100D (bedrock) o Benzene has been decreasing, ranging between 0.70 and 2.2 ppb. The GQS has not been exceeded since March 2014. 0 1,4-dichlorobenzene has been decreasing, ranging between 6.3 and 14 ppb. 0 1,2-dichloroethane has been decreasing, ranging between non -detect and 2.6 ppb. 0 1,4-dioxane exceeds but has only been sampled once so no trends have been established. o Cobalt has a decreasing trend, ranging between 7.4 and 18 ppb. • MW-101D o 1,4-dioxane exceeds but has only been sampled once so no trends have been established. • MW-102S o Benzene has been stable, ranging between 3.6 and 6.8 ppb. 0 1,4-dichlorobenzene has no trend, ranging between 22 and 32 ppb. 0 1,2-dichloropropane has been decreasing, ranging between non -detect and 0.80. The GQS has not been exceeded since September 2016. o Cobalt has a decreasing trend, ranging between 23 and 202 ppb. o Thallium has a decreasing trend, ranging between non -detect and 0.61 ppb. The IMAC has not been exceeded since September 2016. • MW-103S o Cobalt has been stable, ranging between 0.45 to 5.7 ppb. The IMAC was not exceeded in September 2018. o Thallium has no trend, ranging between non -detect and 0.81 ppb. The IMAC was not exceeded in September 2018. SECTIONTHREE Corrective Action Summary • MW-104S o Benzene has no trend, ranging between non -detect and 3.7 ppb. The GQS was not exceeded in September 2018. 0 1,2-dichloroethane has no trend, ranging between non -detect and 1.8 ppb. The GQS was not exceeded in September 2018. o Vinyl chloride has no trend, ranging between non -detect and 1.3 ppb. The GQS was not exceeded in September 2018. 0 1,4-dioxane exceeds but has only been sampled once so no trends have been established. o Cobalt has a decreasing trend, ranging between 0.60 and 7.1 ppb. The IMAC was not exceeded in September 2018. • MW-104D (bedrock) o Benzene has been increasing, ranging between 1.8 and 3.1 ppb. 0 1,1-dichloroethane has been increasing, ranging between 13 and 21 ppb. 0 1,2-dichloroethane has no trend, ranging between non -detect and 0.80 ppb. 0 1,2-dichloropropane has no trend, ranging between 1.2 and 1.8 ppb. o Tetrachloroethene has been decreasing, ranging between non -detect and 1.6 ppb. o Trichloroethene has been decreasing, the GQS has not been exceeded since March 2012. o Vinyl chloride has been probably increasing, ranging between 6.9 and 17 ppb. 0 1,4-dioxane exceeds but has only been sampled once so no trends have been established. • MW-105S o Benzene has been stable, the GQS has not been exceeded since March 2014. 0 1,4-dichlorobenzene has been decreasing, the GQS has not been exceeded since March 2014. o Tetrachloroethene has been decreasing, the GQS has not been exceeded since May 2015. o Trichloroethene has been decreasing, the GQS was not exceeded. o Cobalt has an increasing trend, ranging between 0.35 and 3.3 ppb. o Thallium has an increasing trend, ranging between 0.09 and 0.31 ppb. SECTIONTHREE Corrective Action Summary • MW-106S o 1,4-dioxane exceeds but has only been sampled once so no trends have been established. • MW-202D (bedrock) o Tetrachloroethene has been stable, ranging between non -detect and 3.5 ppb. The GQS has not been exceeded since September 2017. o Trichloroethene has been probably decreasing, the GQS has not been exceeded since December 2015. • MW-203S o Tetrachloroethene has been decreasing, the GQS has not been exceeded since March 2012. • MW-205S o Benzene has no trend, the GQS has not been exceeded since March 2016. o 1,4-dichlorobenzene has no trend, the GQS has not been exceeded since March 2016. o 1,4-dioxane exceeds but has only been sampled once so no trends have been established. • MW-205D (bedrock) o Vinyl chloride has been decreasing, ranging between non -detect and 1.9 ppb. 0 1,4-dioxane exceeds but has only been sampled once so no trends have been established. • MW-207S o Tetrachloroethene has been decreasing, the GQS has not been exceeded since December 2013. • MW-207D (bedrock) o Tetrachloroethene has been decreasing, the GQS has not been exceeded since September 2016. o Vinyl chloride has been non -detect excluding one exceedance in September 2017. • MW-208S o 1,4-dichlorobenzene has been probably decreasing, the GQS has not been exceeded since September 2012. SECTIONTHREE Corrective Action Summary o 1,4-dioxane exceeds but has only been sampled once so no trends have been established. • MW-208D (bedrock) o 1,4-dioxane exceeds but has only been sampled once so no trends have been established. 3.2.2 Groundwater Geochemistry The geochemistry data collected as part of MNA monitoring suggests that conditions within the groundwater are primarily aerobic/oxidizing. The average DO for all monitoring well data during the analysis period was 2.3 milligrams per liter (mg/L) (median 1.3 mg/L), and the average ORP was 136 millivolts (mV) (median 104 mV), which is also indicative of aerobic conditions. Additional parameters collected as part of the MNA sampling further suggests that anaerobic processes are limited (Table 9). Specifically, only monitoring well MW-104S has geochemical data suggestive of predominantly anaerobic conditions. The concentration of iron and methane are elevated, and the concentration of sulfate depleted relative to the other MNA monitoring wells (Table 9). This observation is suggestive of the occurrence of iron reduction, methanogenesis and sulfate reduction (anaerobic processes) in the vicinity of MW-104S. These geochemistry parameters were relatively stable during the monitoring period (Mann -Kendall analysis for these parameters were not performed). SECTIONFOUR Corrective Action Plan Modifications 4.0 CORRECTIVE ACTION PLAN MODIFICATIONS 4.1 MODIFICATIONS TO SELECTED REMEDY It is proposed to eliminate chemical oxidation injections at the facility and continue with MNA across the entire area in conjunction with continued operation of the LFG extraction system. Since the groundwater VOC concentrations in the chemical oxidation wells (MW-201 through MW-206) are either below GQS or stable/decreasing (Table 11) and remaining VOC concentrations are not a threat to surface water, the injection of additional permanganate is not recommended. The primary monitoring well to target for injections has been MW-202D based on a maximum concentration of 3.5 ppb of tetrachloroethene in March 2014. After an injection at the site, the concentration of tetrachloroethene had decreased to below detection levels, but has still sporadically exceeded its GQS 0.7 ppb. However, the concentration of tetrachloroethene in MW-202D has been below its GQS over the last three sampling events. It is expected that additional oxidant injections will not further reduce tetrachloroethene concentrations because the concentration is low. Thus, it is proposed to only perform MNA going forward. In addition to the wells near chemical oxidant injection wells, the majority of individual well and bulk plume metrics demonstrate that the VOC plume is stable and/or decreasing (Tables 11 and 12). Cobalt is currently the only compound that is consistently detected above its GQS or IMAC in groundwater monitoring wells located closest to Crabtree Creek. However, it is detected at low levels in the upgradient surface water sample (SW-2) and it is also detected in upgradient (e.g., MW-102S and MW-9) and side -gradient wells (e.g., MW-8, MW-11, and MW-12). Therefore, it is possible that the source of cobalt in groundwater may be due to another source apart from the landfill or naturally occurring. A former electroplating facility, for example, operated at 1020 Corporation Parkway, which is located upgradient of monitoring well MW-102S, which has the highest detection of cobalt at the site. In order to evaluate background metal concentrations, an Alternative Source Demonstration (ASD) plan will be prepared and submitted for approval in order to prepare an ASD report for the site. Since only MNA would be performed, it is also proposed to continue operating the LFG extraction system, which also recovers condensate from select extraction wells. By removing condensate from extractions wells across the landfill, the system extraction of LFG is enhanced and fewer COCs are able to leach into the groundwater. LFG is a potential source of VOCs for groundwater as VOCs present in LFG can partition into groundwater. Since groundwater concentrations have remained stable or are decreasing at the facility, the LFG extraction system appears to be an effective control as a groundwater remedy. Additionally, the dissolved methane concentrations in wells downgradient from the landfill (MW-6, MW-100S, MW-104S, and MW- 16 SECTIONFOUR Corrective Action Plan Modifications 106S) are low and the downgradient boundary probes (B-56 and B-58) have not had methane gas detected in them. 4.2 MODIFICATIONS TO GROUNDWATER MONITORING 4.2.1 Assessment No changes have been proposed/approved to the assessment and corrective action monitoring plan since CAP approval. It is proposed to reduce some of the laboratory analysis and/or frequency for select monitoring wells because constituents have reported concentrations below detection limits for multiple sampling events. Additionally, since it is proposed to cease permanganate injections, the need to collect groundwater samples quarterly from select monitoring wells is not necessary. Those select monitoring wells will only be sampled semi- annually going forward and the laboratory analysis will be reduced once approval is granted under the Underground Injection Control permit. The proposed assessment monitoring plan is summarized in Table 13. 4.2.2 MNA Since the CAP approval, a full list of geochemical parameters has been analyzed on a semi- annual basis. After a discussion with NCDEQ, it was evaluated that some of these parameters can be reduced from semi-annual sampling to every three or five years. It is proposed to analyze groundwater samples from MNA wells (MW-6, MW-100S, MW-104S, and MW-106S) on the schedule included in Table 14. 17 SECTIONSIX REFERENCES 5.0 REFERENCES Hazen and Sawyer, 2008. Assessment of Corrective Measures Hazen and Sawyer, 2010. Corrective Action Plan GSI Environmental, Inc., 2012. Monitoring and Remediation Optimization System (MAROS) Software Version 3.0. User's Guide and Technical Manual TABLES Table 1 Calculated Groundwater Flow Velocities - March 2018 Wilders Grove Landfill Monitoring Well Designation Hydraulic Conductivity * ft/day Gradient Effective porosity* Average Linear Velocity (ft/day) General Flow Direction MW-1 2.7 0.012 0.2 1.62E-01 SSW MW-2 10.5 0.064 0.2 3.37E+00 SSW MW-3 13.2 0.028 0.2 1.83E+00 SSW MW-4 (B) 10.3 0.015 0.2 7.88E-01 SSW MW-6 1.1 0.051 0.2 2.82E-01 S MW-8 1.8 0.018 0.2 1.58E-01 SSW MW-9 12.4 0.031 0.2 1.92E+00 SSW MW-10** 17.1 -- 0.2 -- SSE MW-11 45.9 0.009 0.2 2.07E+00 SSW MW-12 67.2 0.056 0.2 1.87E+01 SSW MW-100S -- 0.044 0.2 -- SSW MW-100D -- -- -- -- -- MW-101 D -- -- -- -- -- MW-102S 6.2 0.016 0.2 4.99E-01 SSW MW-103S -- 0.031 0.2 -- SSW MW-104S -- 0.058 0.2 -- SSE MW-104D -- -- -- -- -- MW-105S -- 0.007 0.2 -- S MW-106S -- 0.029 0.2 -- SSW ft/day - feet per day SSW - South/Southwest S - South SSE - South/Southeast - ' Not Evaluated This Period Hydraulic Conductivity and Effective Porosity obtained from February 2000 Hydraulic Assessment Report Prepared by Civil and Environmental Consultants, Inc. ** Damaged Piezometer 1of1 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E 16 U) U a U N In Na E OOO CO d m N E E E y s E 6 5 m N a) w O (a m O F (a w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r 16 7 d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O Oy VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-1 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 31-Jul-95 14 <5 <10 <5 <1 <1 <1 <1 <1 <1 25 2.6 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 MW-1 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <5 <10 <5 <5 <5 <100 <5 5.5 7.3 <5 <5 <5 <5 <5 MW-1 30-Sep-96 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 MW-1 24-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 28-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1^^ 26-May-00 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 6.93 <5 <5 <5 <5 <5 <5 MW-1 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 17-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 18-Oct-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 18-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 31-Mar-04 <25 <20 <10 <100 <10 <1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-1 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-1 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-1 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-1 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-1 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-1 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 22-Sep-09 1.3 U U U U U U U U U 2.4 U U U U U 0.3 U U U U U U U U U U U U U U U U MW-1 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 23-Mar-11 U U U U U U U U U U U U U U U U 2.7" U U U U U U U U U U U U U U U U U MW-1 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 18-Sep-12 MW-1 13-Mar-13 MW-1 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U Ulu U U U U U U U U MW-1 20-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 1 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill '� O ❑f6 Q. £ M fn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d R cCo U C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q � d LL O d O N N N o = U = - = N= = d °°° r R0 L HH = r N N 2 O d 6RC L E 3 2 C = Q O°- tO Ft A N = ° NC p U , d NQ �( d T Xw r0 U). +7 N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-1 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-1 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-1 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-1 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-1 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 MW-1 29-Mar-96 <5 <5 <5 <5 <5 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-1 30-Sep-96 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 28-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1^^ 26-May-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 17-Sep-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 18-Oct-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 18-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 31-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-1 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-1 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-1 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-1 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-1 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-1 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-1 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-1 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-1 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-1 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 18-Sep-12 MW-1 13-Mar-13 MW-1 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U Ulu U U U MW-1 20-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 2 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E 16 U) U a U N In Na E OOO CO d m 4) E E E y s E 6 5 m N a) :2OsL O (a m O F (a w �O OO O d RN O CL O :E U C R 4) E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r 16 7 d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O Oy VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 1 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-2 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 7 <5 <5 <5 <5 <5 <5 MW-2 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 8.4 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 7.1 <5 <5 <5 <5 <5 <5 MW-2 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 9.6 <5 <5 <5 <5 <5 MW-2 31-Jul-95 26 <5 <10 <5 <1 3 <1 <1 <1 <1 55 <1 <1 1.4 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 2.8 <1 <1 7.8 <1 <1 1.1 <1 <1 <1 MW-2 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <5 <10 <5 <5 <5 <100 <5 5.5 <5 <5 <5 <5 <5 <5 MW-2 20-Sep-96 <50 <50 9.2 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 <100 <5 <5 7.3 <5 <5 <5 <5 MW-2 30-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 7.3 <5 <5 <5 <5 <5 MW-2 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 23.7 <5 <5 <5 <5 <5 <5 MW-2 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6.69 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 5.18 23.3 <5 <5 <5 <5 <5 <5 MW-2 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2^^ 26-May-00 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 27.1 <5 <5 5.52 <5 <5 <5 MW-2 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 17.7 <5 <5 <5 <5 <5 <5 MW-2 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 6.38 <5 <5 <5 <5 <5 <5 MW-2 17-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 30-Mar-04 <25 <20 <10 <10 <10 6 <1 <1 <1 <1 <25 <1 <1 <5 <1 <1 <1 <100 <1 <5 <1 <1 8.7 <1 <10 <1 14.6 <1 <1 2.7 <1 <1 <1 MW-2 24-Sep-04 <50 <50 <50 5.69 <5 <5 <5 <10 <5 <5 5.43 <10 <5 <10 <5 <25 <10 <5 <5 6.95 <100 <5 8.63 <5 <5 <5 <5 <5 <5 MW-2 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 7.1 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6.4 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 9.2 <100 <5 5.4 5.2 <5 <5 <5 <5 <5 MW-2 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 7.2 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-2 11-Sep-07 <100 <50 <50 <200 <10 4.8 <3 <1 <3 <10 <100 <100 <1 6.8 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 8.4 <100 <5 <5 3.1 <5 <5 <5 <1 <1 MW-2 19-Mar-08 <100 <50 <50 <200 <10 4 <3 <1 <3 <10 <100 <100 <1 4.4 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 11.5 <100 <5 <5 5.8 <5 <5 <5 <1 <1 MW-2 23-Sep-08 <100 <50 <50 <200 <10 4.1 <3 <1 <3 <10 <100 <100 <1 4.1 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 8.6 <100 <5 <5 5.4 <5 <5 <5 <1 <1 MW-2 18-Mar-09 2.1 U U U U 2.5 U U U U U U U U U U 0.2 U U U U U 0.5 U 8.1 U U 1.5 3.8 0.4 U U U MW-2 22-Sep-09 1.8 U U U U 4.7 U U U U 1.1 U U 6.4 U U U U U U U U U U 5.3 U U 0.4 1.3 0.2 U U U MW-2 23-Mar-10 U U U U U 2.7 U U U U 28.5 U U 4.9 U U U U U U U U U U 6.7 U U 1.3 3.2 U U U U U MW-2 21-Sep-10 U U U U U 5 U U U U U U U 8.5 U U U U U U U U U U 7.6 U U 0.4 1.1 U U U U U MW-2 23-Mar-11 U U U U U 3.5 U U U U U U U 5 U U 4.4" U U U U U 0.5 U 9.6 U U 0.7 4.3 U U U U U MW-2 26-Sep-11 U U U U U 3.3 U U U U U U U 4 U U U U U U U U 0.5 U 10.1 U U U 3.6 U U U U U MW-2 27-Mar-12 U U U U U 2.9 U U U U U U U 4.3 U U U U U U U U 0.5 U 10.9 U U 0.6 2 U U U U U MW-2 18-Sep-12 U U U U U 3.1 U U U U U U U 3.9 U U U U U U U U 0.5 U 10.1 U U U 2.4 U U U U U MW-2 13-Mar-13 U U U U U 3 U U U U U U U 4 U U U U U U U U 0.4 U 9.5 U U 0.5 2.3 U U U U U MW-2 24-Sep-13 U U U U U 2.4 U U U U U U U U U U U U U U 7.5 U 0.5 U 9.7 U U 0.3 1.5 U U U U U MW-2 25-Mar-14 U U U U U 4.40 U U U U U U U 8.20 U U U U U U U U U U 7.20 U U 0.40J 1.00 U U U U U MW-2 27-May-15 U U U U U 1.90 U U U U U U U 6.40 U U U U U U U U 0.40J U 9.10 U U 0.30J 1.10 U U U U U MW-2 29-Sep-15 U U U U U 3.40 U U U U U U U 10.60 U U U U U U U U 0.50J U 8.00 U U 0.20J U U U U U U MW-2 15-Mar-16 U U U U U 2.00 U U U U U U U 5.90 U U U U U U U U 0.40J U 8.50 U U 0.40J 0.80J U U U U U MW-2 27-Sep-16 U U U U U 2.50 U U U U U U U 8.40 U U U U U U U U 0.40J U 6.80 U U U U U U U U U MW-2 22-Mar-17 U U U U U 2.10 U U U U U U U 6.00 U U U U U U U U 0.40J U 12.80 U U 0.30J 1.10 U U U U U MW-2 28-Sep-17 U U U U U 2.10 U U U U U U U 6.40 U U U U U U U U U U 10.40 U U 0.20J 0.80J U U U U U MW-2 14-Mar-18 U U U U U 2.50 U U U U U U U 5.90 U U U U U U U U U U 9.10 U U 0.20J 0.60J U U U U U MW-2 20-Sep-18 1 U U U U U 1.65 U U U U U U U 5.01 U U U U U U U U 0.43J U 10.701 U U U 1 0.62 1 U U U 0.05J U Page 3 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill '� O ❑f6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d R cCo U C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > N M > d O = � d N Q (aOCI! Z Q V) d LL O d O N N N o = U = - = N= = d °°° r R0 L HH = r N N 2 O d 6RC L E 3 2 C = Q O°- tO Ft A N = ° p NC U , d NQ �( d T Xw r0 U). +7 N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-2 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 3.8 7.9 MW-2 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-2 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-2 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-2 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 2 1.1 <2 MW-2 29-Mar-96 <5 <5 <5 <5 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-2 20-Sep-96 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-2 30-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2^^ 26-May-00 <5 <5 <5 <5 <5 <10 <50 <10 <5 <30 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 25-Sep-01 <5 <5 <5 <5 <5 <5 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 7.47 <5 <15 <50 <10 <5 <5 MW-2 20-Mar-02 <5 <5 <5 <5 <5 <5 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <10 <10 <5 <5 MW-2 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 17-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 4.5 <5 <5 MW-2 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-2 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-2 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-2 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-2 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-2 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 1.6 <4 MW-2 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 1.6 <5 MW-2 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 1.5 <5 MW-2 18-Mar-09 U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U 1.1 U MW-2 22-Sep-09 U U U U U U U U U U U U U U U U U U U U 0.2 U U U U U U U 0.7 U MW-2 23-Mar-10 U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U 1 U MW-2 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 23-Mar-11 U U U U U U U U U U U U U U U U U U U U 0.4 U U U U U U U 1.2 U MW-2 26-Sep-11 U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U 1.1 U MW-2 27-Mar-12 U U U U U U U U U U U U U U U U U U U U 0.4 U U U U U U U 0.7 1.2 U MW-2 18-Sep-12 U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U 1.2 U MW-2 13-Mar-13 U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U 0.901 U MW-2 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1 U MW-2 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.801 U U U MW-2 1 20-Sep-18 UIUIUI U135.601 UIUIUIUIUIUIUIUIUI U I U U U U I U U U I U U U U U U U 0.3 1 U U U Page 4 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m 4) E E m E In y E m 6 5 m N a) w O m O F w �O OO O d RN O CL O :E U C R 4) E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-3 20-Sep-94 <10 <10 <10 5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 8 19.4 <5 <5 18.5 <5 <5 <5 MW-3 7-Dec-04 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 14 <5 <5 <5 10 <5 <5 MW-3 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 6.8 <5 <5 <5 5.3 <5 <5 MW-3 31-Jul-95 16 <5 <10 <5 <1 3.6 <1 <1 <1 <1 59 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 1.4 <1 1.8 <1 <1 10 <1 <1 7.6 <1 <1 <1 MW-3 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <10 <5 <5 <5 <100 <5 <5 <5 7.7 <5 <5 <5 MW-3 30-Sep-96 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <10 <5 <5 <100 <5 <5 <5 <5 7.6 <5 MW-3 24-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 8.5 <5 <5 <5 <5 <5 <5 M W-3 15-Sep-97 MW-3 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 15.2 <5 <5 <5 6.96 <5 <5 MW-3 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6.43 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 25-Sep-01 <50 <100 <50 <50 <10 5.28 <5 <5 <5 <10 <5 <5 5.62 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 11.7 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 10 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 17-Sep-02 <50 <50 <50 5.21 <5 <5 <5 <10 <5 <5 6.55 <10 <5 <10 <5 <25 <5 <10 <5 <5 13.6 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <20 <5 <25 <10 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 17-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 31-Mar-04 <25 <20 <10 <10 <10 4.6 <1 <1 <1 <1 <25 <1 <1 5.9 <1 <1 <1 <100 <1 <5 <1 <1 <1 12.9 <10 <1 2.4 <1 <1 <1 <1 <1 <1 MW-3 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 6.54 <10 <5 <10 <5 <25 <10 <5 <5 17 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 6.7 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 16.2 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 5.2 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 16.8 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 6.3 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 20.8 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-3 21-Mar-07 <100 <50 <50 <200 <10 4.5 <3 <3 <3 <10 <100 <100 <5 5.4 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 21.1 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-3 11-Sep-07 <100 <50 <50 <200 <10 3.7 <3 <1 <3 <10 <100 <100 <1 5 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 20.7 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-3 19-Mar-08 <100 <50 <50 <200 <10 4.5 <3 <1 <3 <10 <100 <100 <1 5.4 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 19.6 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-3 23-Sep-08 <100 <50 <50 <200 <10 2.7 <3 <1 <3 <10 <100 <100 <1 3.7 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 17.8 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-3 18-Mar-09 U U U U U 3.5 U U U U U U U 3.8 0.8 U U U U U U U 0.9 U 21.7 U 0.8 1.1 U 0.2 U U U MW-3 22-Sep-09 2.7 U U U U 2.8 U U U U 1.5 U U 3.5 0.4 U U U U U U U 1 U 21.4 U 0.2 0.9 U 0.2 U U U MW-3 23-Mar-10 U U U U U 2.1 U U U U U U U 3.1 U U U U U U U U 0.8 U 18.5 U U 0.6 U U U U U U MW-3 21-Sep-10 11.1 U U U U 2.9 U U U U 2.6 U U 3.3 U U U U U U U U 0.8 U 18.8 U U 1.1 U U U U U U MW-3 23-Mar-11 U U U U U 4 U U U U U U U 3.8 0.5 U 2.7" U U U U U 0.8 U 19.7 U 1.2 1.4 U U U U U U MW-3 26-Sep-11 U U U U U 3.7 U U U U U U U 3.9 0.5 U U U U U U U 0.8 U 18.9 U U U U 1.3 U U U U MW-3 27-Mar-12 U U U U U 2.2 U U U U U U U 2.3 U U U U U U U U 0.5 U 11 U U 0.9 U U U U U U MW-3 18-Sep-12 U U U U U 2.3 U U U U U U U 2.5 U U U U U U U U 0.5 U 12.5 U U 0.7 U U U U U U MW-3 13-Mar-13 U U U U U 2.2 U U U U U U U 2.7 U U U U U U U U 0.4 U 12 U U 0.5 U U U U U U MW-3 24-Sep-13 U U U U U 2.7 U U U U U U U U U U U U U U 2.9 U 0.5 U 13.1 U U 0.5 U U U U U U MW-3 25-Mar-14 U U U U U 1.70 U U U U U U U 2.40J U U U U U U U U 0.50J U 12.50 U U 0.30J U U U U U U MW-3 27-May-15 U U U U U 0.80J U U U U U U U U U U U U U U U U 0.50J U 12.60 U U U U U U U U U MW-3 29-Sep-15 U U U U U 1.20 U U U U U U U 1.60J U U U U U U U U 0.50J U 14.50 U U U U U U U U U MW-3 15-Mar-16 U U U U U 0.80J U U U U U U U 1.60J U U U U U U U U 0.40J U 10.10 U U U U U U U U U MW-3 27-Sep-16 U U U U U 1.70 U U U U U U U 1.901 U U U U U U U U 0.60J U 14.40 U U 0.20J U U U U U U MW-3 22-Mar-17 U U U U U 1.70 U U U U U U U 1.801 U U U U U U U U 0.40J U 11.20 U U 0.30J U U U U U U MW-3 28-Sep-17 U U U U U 2.70 U U U U U U U 2.50J U U U U U U U U 0.50J U 13.30 U U 0.40J U U U U U U MW-3 14-Mar-18 U U U U U 1.90 U U U U U U U 2.10J 0.50J U U U U U U U U U 9.40 U U 0.50J U U U U U U MW-3 20-Sep-18 U U U U U 1.20 U U U U U U U 1.57J U U U U U U U U U U 9.30 U U U 0.06J U U U U U Page 5 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill '� O ❑f6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d R cCo U C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > N M > d O = � d N Q (aO Z Q V) d LL O d O N N N o = U = - = N= = d °°° r R0 L HH = r N N 2 O d 6RC L E 3 2 C = Q O°- tO Ft A N = ° NC p U , d NQ �( d T Xw r0 U). +7 N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-3 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 12.4 <5 <5 <5 <10 <5 <5 MW-3 7-Dec-04 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 9.1 <5 <5 <5 <10 <5 <5 MW-3 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-3 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-3 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 1.1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 4.6 <1 <1 <1 2.8 <1 <2 MW-3 29-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 30-Sep-96 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-3 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 15-Sep-97 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 240 <150 <5 <5 <5 <5 <5 <10 <5 <5 13.5 <5 <15 <50 <10 <5 <5 MW-3 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 3 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 17-Sep-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 17-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 31-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-3 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-3 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-3 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-3 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-3 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-3 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-3 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-3 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-3 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-3 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 15-Mar-16 U U U U U U U U U U U U U U U U U 1.60J U U U U U U U U U U U U MW-3 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-3 I 20-Sep-181 UIUIUI U1 U I UIUIUIUIUIUIUIUIUI U I U U U U I U U U U U U U U U Jul U U U U Page 6 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E 16 U) U a U N In Na E OOO CO d m N E E E y s E 6 5 m N a) w O (a m O F (a w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r 16 7 d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O Oy VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-4 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 31-Jul-95 7.6 <5 <10 <5 <1 <1 <1 <1 <1 <1 36 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 4.3 <1 <1 <1 <1 <1 <1 <1 MW-4 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 5.9 <10 <5 <5 <20 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 30-Sep-96 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 6.8 <10 <5 <10 <5 <25 <5 <10 <5 <5 13 <100 6.7 <5 <5 <5 <5 <5 <5 MW-4 24-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4^^ 26-May-00 <50 <50 <50 <5 <5 <5 <5 <10 <50 24.2 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 29-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 20-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 17-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 18-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 30-Mar-04 <25 <20 <10 <10 <10 <1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-4 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-4 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-4 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-4 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-4 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-4 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 22-Sep-09 U U U U U U U U U U 1 U U U U U U U U U U U U U U U U U U U U U U U MW-4 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 23-Mar-11 U U U U U U U U U U U U U U U U 3.5" U U U U U U U U U U U U U U U U U MW-4 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U Ulu U U U U U U U U MW-4 20-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 7 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill wQ. O f6 ❑ £ M (n C M O o L U ❑ N N C N O o L U ❑ d d Q O t U 0 M 0 U d O O O L `—' ❑ M C ` m = K O ❑ N C d T t W « L N T L W G7 = d R 7 c C U X y 2 a C C X N 2 N C l0 L E O 'O 2 O t c°� Q .. d O A ` �, E M « N Gl 'O O v N >. ._. N N M i U N >. N d O = •�+ = a N s d a C N R= s Q m Z " �, O O' Q N = i � d L N O O L H N d L N O C L H N N N N t o = U N F y = 7 O - = N = d O ° r U H N N = R d O ° L U H N = l0 N O ° r U H N N = N O O V H d 16 L E 3 O C U H = R Q O- O ° t V H A N V Q >. = > N ° p L U , C_ > d N T �( O N d T X Q aS E _^ R r0+ N N 47 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-4 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-4 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-4 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-4 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-4 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 MW-4 29-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 30-Sep-96 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4^^ 26-May-00 <5 <5 <5 <5 <5 <10 <50 <10 <5 <30 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 29-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 20-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 17-Sep-02 <5 <5 <5 <5 <5 <50 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 18-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-4 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-4 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-4 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-4 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-4 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-4 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-4 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-4 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-4 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-4 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-4 28-Sep-17 U U U U U U U U U U U U U U 0.90J U U U U U U U U U U U U U U U MW-4 14-Mar-18 U U U U U U U U U U U U U U 0.70J U U U U U U U U U U U U U U U U U MW-4 20-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 8 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) w O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-6 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 5.6 <10 6.2 <5 <5 <5 <5 <5 7.1 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 7-Dec-94 10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 11 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 5.5 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 31-Jul-95 26 <5 <10 <5 <1 2.3 <1 <1 <1 <1 47 <1 <1 5.7 <1 <1 <1 <5 <1 <1 <1 <1 2.1 <1 7.5 <1 <1 1.1 <1 <1 <1 <1 <1 <1 MW-6 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 5.9 <10 <5 <5 <20 <5 <10 <5 <5 7.7 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 30-Sep-96 <50 <50 7.8 <5 <5 <5 <10 <50 <5 <5 6.8 <10 <5 <10 <5 <25 <5 <10 <5 <5 13 <100 6.7 <5 <5 <5 <5 <5 <5 MW-6 24-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 9.7 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 6.84 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 8.46 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 5.31 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 11.1 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 5.28 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 10.4 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 10.2 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 10.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14.1 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 13 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 30-Mar-04 <25 <20 <10 <10 <10 2.4 <1 <1 <1 <1 <25 <1 <1 5.8 <1 <1 <1 <100 <1 <5 <1 2.9 <1 16.4 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-6 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 6.92 <10 <5 <10 <5 <25 <10 <5 <5 15.8 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 5.3 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 17 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 5.3 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 13.9 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 5.6 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 16 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 16.5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-6 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 6 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 17.6 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-6 11-Sep-07 <100 <50 <50 <200 <10 1.7 <3 <1 <3 <10 <100 <100 <1 6.3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 20.2 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-6 19-Mar-08 <100 <50 <50 <200 <10 1.7 <3 <1 <3 <10 <100 <100 <1 5.8 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 18.4 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-6 23-Sep-08 <100 <50 <50 <200 <10 1.5 <3 <1 <3 <10 <100 <100 <1 5.4 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 18.2 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-6 18-Mar-09 3.7 U U U U 1.5 U U U U U U U 5.6 U U U U U U U U 3.1 0.6 21.6 U U 0.3 U 0.2 U 0.3 U MW-6 22-Sep-09 1.6 U U U U 0.9 U U U U 1.1 U U 3.8 U U U U U U U U 1.9 0.4 14.4 U U U U U U 0.2 U MW-6 23-Mar-10 U U U U U 0.8 U U U U U U U 2.8 U U U U U U U U 1.7 U 13.7 U U U U U U U U U MW-6 21-Sep-10 U U U U U 0.7 U U U U U U U 2.8 U U U U U U U U 1.6 U 13.1 U U U U U U U U U MW-6 23-Mar-11 U U U U U 0.7 U U U U U U U 3.3 U U 2.4** U U U U U 1.5 U 10.9 U U U U U 0.3 U U U MW-6 26-Sep-11 U U U U U 0.6 U U U U U U U 2.3 U U U U U U U U 1.2 U 8.3 U U U U U U U U U MW-6 27-Mar-12 U U U U U 0.7 U U U U U U U 2.5 U U U U U U U U 1.2 U 8.9 U U U U U 0.3 U U U MW-6 18-Sep-12 U U U U U 0.8 U U U U U U U 2.2 U U U U U U U U 1.3 U 9.5 U U U U U U U U U MW-6 13-Mar-13 U U U U U 0.6 U U U U U U U 1.6 U U U U U U U U 1 U 8.5 U U U U U U U U U MW-6 24-Sep-13 U U U U U 0.6 U U U U U U U 1.3 U U U U U U U U 0.8 U 6.1 U U U U U U U U U MW-6 25-Mar-14 U U U U U 0.30J U U U U U U U 0.70J U U U U U U U U 0.50J U 4.20 U U U U U U U U U MW-6 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U 0.70J U U U U U U U U U MW-6 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U 1.60 U U U U U U U U U MW-6 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U 0.501 U U U U U U U U U MW-6 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U 1.40 U U U U U U U U U MW-6 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U 1.30 U U U U U U U U U MW-6 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U 1.20 U U U U U U U U U MW-6 15-Mar-18 U U U U U 0.30J U U U U U U U 0.501 U U U U U U U U U U 1.90 U U 0.30J U U 0.60J U U U MW-6 24-Sep-18 U U U U U U U U U U U U U U U U U U U U U U I U I U 1 1.20 U U U U I U U U U U Page 9 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill '� O ❑f6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d R cCo U C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = - = N= = d °°° r R0 L HH = r N N 2 O d 6RC L E 3 2 C = Q O°- tO Ft A N = ° NC p U , d NQ �( d T Xw r0 U). +7 N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-6 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-6 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-6 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-6 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-6 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 MW-6 29-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 30-Sep-96 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 16-Sep-02 <5 <5 <5 <5 <5 <50 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-6 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-6 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-6 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-6 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-6 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-6 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-6 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-6 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-6 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-6 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U 0.4 U 0.2 U U U U U U MW-6 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 15-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-6 24-Sep-18 U U U U 3.75 U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 10 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-8 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 31-Jul-95 27 <5 <10 <5 <1 <1 <1 <1 <1 <1 34 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 8.1 <1 <1 <1 <1 <1 <1 <1 MW-8 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <5 <20 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 30-Sep-96 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 12.2 <10 <5 <25 <5 <10 <5 <5 13 <100 6.7 <5 <5 <5 <5 <5 <5 MW-8 24-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 5.13 <5 <5 MW-8 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8^^ 26-May-00 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 17-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 18-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 30-Mar-04 <25 <20 <10 <10 <10 1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-8 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-8 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-8 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 1.2 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-8 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 1.1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-8 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 1.1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-8 18-Mar-09 U U U U U 0.3 U U U U U U U 0.6 U U U U U U U U U U 1.1 U 0.3 U U 0.3 U U U MW-8 22-Sep-09 U U U U U 0.4 U U U U U U U 1.2 U U U U U U U U U U 1.3 U 0.3 U U U U U U MW-8 23-Mar-10 U U U U U U U U U U U U U 0.6 U U U U U U U U U U 0.8 U U U U U U U U U MW-8 21-Sep-10 U U U U U 0.3 U U U U U U U 0.9 U U U U U U U U U U 1.4 U U U U U U U U U MW-8 23-Mar-11 U U U U U 0.3 U U U U U U U 1 U U 2.8** U U U U U U U 1.2 U U U U U U U U U MW-8 26-Sep-11 U U U U U U U U U U U U U 1.3 U U U U U U U U U U 1.7 U U U U U U U U U MW-8 27-Mar-12 U U U U U 0.3 U U U U U U U 1.1 U U U U U U U U U U 1.4 U U U U U U U U U MW-8 18-Sep-12 U U U U U 0.5 U U U U U U U 1.9 U U U U U U U U U U 2.1 U U U U U U U U U MW-8 13-Mar-13 U U U U U 0.4 U U U U U U U 1.5 U U U U U U U U U U 1.7 U U U U U U U U U MW-8 24-Sep-13 U U U U U U U U U U U U U U U U U U U U 1.5 U U U 2 U U U U U U U U U MW-8 25-Mar-14 U U U U U U U U U U U U U 0.60J U U U U U U U U U U 0.80J U U U U U U U U U MW-8 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 29-Sep-15 U U U U U U U U U U U U U 0.60J U U U U U U U U U U 0.80J U U U U U U U U U MW-8 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 27-Sep-16 U U U U U U U U U U U U U 0.60J U U U U U U U U U U 0.80J U U U U U U U U U MW-8 22-Mar-17 U U U U U 0.30J U U U U U U U 0.901 U U U U U U U U U U 0.901 U U U U U U U U U MW-8 28-Sep-17 U U U U U 0.40J U U U U U U U 1.10J U U U U U U U U U U 1.00 U U U U U U U U U MW-8 14-Mar-18 U U U U U 0.30J U U U U U U U 1.20J U U U U U U U U U U 0.80J U U U U U U U U U MW-8 20-Sep-18 U U U U U U U U U U U U U 1.14J U U U U U U U U O. U 1.03 U U U U U U U U U Page 11 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > N M > d O = � d N Q (aOCI! Z Q V] d LL O d O N N N o = U = - N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-8 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-8 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-8 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-8 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-8 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 MW-8 29-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 30-Sep-96 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-8 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8^^ 26-May-00 <5 <5 <5 <5 <5 <10 <50 <10 <5 <30 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 17-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 18-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-8 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-8 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-8 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-8 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-8 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-8 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-8 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-8 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-8 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-8 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-8 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U Ulu U U U MW-8 20-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 12 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-9 20-Sep-94 <10 <10 <10 8.8 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 16.8 <5 <5 <5 <5 260 <5 <5 <5 MW-9 7-Dec-94 <10 <10 <10 7.5 <10 <5 <5 <10 <5 <5 9 <10 <5 <5 <5 <5 8.8 <5 20.6 <5 <5 <5 <5 <5 132 <5 <5 MW-9 24-Feb-95 <10 <10 <10 7.5 <10 <5 <5 <10 <5 <5 9.1 <10 <5 <5 <5 <5 <5 <5 13.1 <5 <5 <5 <5 <5 225 <5 <5 MW-9 17-Mar-95 <10 <10 <10 8.3 <10 <5 <5 <10 <5 <5 8.9 <10 <5 <5 <5 <5 <5 <5 12.9 <5 <5 <5 <5 <5 242 <5 <5 MW-9 31-Jul-95 <50 <50 <100 <50 <10 <10 <10 <10 <10 <10 <50 <10 <10 <10 <10 <10 10 <50 <10 <10 <10 <10 <10 <10 10 <10 <10 <10 <10 <10 120 <10 <10 <10 MW-9 29-Mar-96 <50 <100 <50 <50 <10 6.9 <5 <5 <5 <10 <50 <5 <5 6.1 <10 <5 <5 <20 <5 <10 <5 10.2 <5 <100 <5 <5 <5 <5 <5 221 <5 <5 MW-9 30-Sep-96 <50 <50 11.4 <5 <5 <5 <10 <50 <5 <5 7.1 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 7.1 184 <5 <5 MW-9 24-Mar-97 <50 <100 <50 <50 <10 5.1 <5 <5 <5 <10 <50 <5 <5 8.2 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 13.5 <100 <5 <5 <5 <5 <5 174 <5 <5 MW-9 15-Sep-97 <50 <100 <50 <50 <10 6.4 <5 <5 <5 <10 <50 <5 <5 7.1 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 9.1 <100 <5 <5 <5 <5 <5 248 <5 <5 MW-9 30-Mar-98 52.7 <100 <50 <50 <10 5.58 <5 <5 <5 <10 <50 <5 <5 9.95 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14.5 <100 <5 <5 <5 <5 <5 190 <5 <5 MW-9 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 13.8 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 22.6 <100 <5 <5 <5 <5 141 <5 <5 <5 MW-9 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 13.6 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 19.7 <100 <5 <5 <5 <5 83.7 <5 <5 <5 MW-9 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-9 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 9.01 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 11.2 <100 <5 <5 <5 <5 45.6 <5 <5 <5 MW-9 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 8.07 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 9.83 <100 <5 <5 <5 <5 51 <5 <5 <5 MW-9 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 8.54 <10 <5 <10 <20 <5 <25 <5 <10 <5 7.41 11.7 <100 <5 <5 <5 <5 36.7 <5 <5 <5 MW-9 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 23.5 <5 7.81 <10 <5 <10 <20 <5 <25 <5 <10 <5 7.41 9.23 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-9 19-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 7.42 <10 <5 <10 <5 <25 <5 <10 <5 <5 8.6 <100 <5 <5 <5 <5 29.2 <5 <5 <5 MW-9 12-Mar-03 135 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 8.87 <5 <5 <5 MW-9 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 6.56 <5 <5 <5 MW-9 31-Mar-04 <25 <20 <10 <10 <10 1.6 <1 <1 <1 <1 <25 <1 <1 6.9 <1 <1 <1 <100 <1 <5 <1 1.1 <1 10.4 <10 <1 <1 <1 <1 20.7 <1 <1 <1 MW-9 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 5.57 <10 <5 <10 <5 <25 <10 <5 <5 7.44 <100 <5 <5 <5 <5 11.4 <5 <5 <5 MW-9 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 7.9 <100 <5 <5 <5 <5 13.6 <5 <5 <5 MW-9 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 9.5 <100 <5 <5 <5 <5 19.9 <5 <5 <5 MW-9 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6.7 <100 <5 <5 <5 <5 13.7 <5 <5 <5 MW-9 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 10.2 <5 <5 <5 MW-9 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 3.4 <100 <5 <5 <3 <5 5.6 <5 <3 <3 MW-9 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 4.7 <100 <5 <5 <1 <5 6.1 <5 <1 <1 MW-9 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 2 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-9 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 2.4 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-9 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U 0.9 U U U U 1.2 U 0.2 U MW-9 22-Sep-09 U U U U U U U U U U 1.3 U U U U U U U U U U U 0.2 U 1.3 U U U U 0.9 U 0.2 U MW-9 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 U 0.4 U MW-9 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 U MW-9 23-Mar-11 U U U U U U U U U U U U U U U U 2.6** U U U U U U U 0.5 U U U U U U U U U MW-9 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 20-Sep-18 U U U U U U U U U U U U U U I U U U U U U U U U I U I U I U I U I U I U U U U U U Page 13 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill '� O ❑f6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d R cCo U C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > N M > d O = � d N Q (aOCI! Z Q V) d LL O d O N N N o = U = - = N= = d °°° r R0 L HH = r N N 2 O d 6RC L E 3 2 C = Q O°- tO Ft A N = ° NC p U , d NQ �( d T Xw r0 U). +7 N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-9 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 11.3 <5 <5 MW-9 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 5.4 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 5.6 <5 <5 MW-9 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 12.3 <5 <5 MW-9 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 8.2 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 12.3 <5 <5 MW-9 31-Jul-95 <10 <10 <10 <10 <10 <10 <50 <10 <10 <10 <10 <50 <100 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <20 MW-9 29-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 30-Sep-96 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-9 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 19-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 12.4 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 31-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 1.3 <1 <1 <1 <1 1.6 <1 <1 <10 2.3 <5 <5 MW-9 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-9 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-9 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-9 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-9 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-9 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-9 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-9 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-9 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-9 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 22-Sep-09 U U U U U U U U U U U U U U U U U U U 0.2 U U U U U U U U U U MW-9 23-Mar-10 U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U U U U MW-9 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 23-Mar-11 U U U U U U U U U U U U U U U U U U U 0.2 U U U U U U U U U U MW-9 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 14-Mar-18 U U U U U U U U U U U U U U U U U Ulu U U U U U U U U U U U U U MW-9 20-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 14 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-10 20-Sep-94 7890 <10 <10 10.9 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 4.5 <5 16.7 <5 11.8 <5 <5 144 <5 <5 <5 MW-10 7-Dec-94 932 <10 <10 10.7 <10 <5 <5 2260 <5 <5 8.9 <10 <5 <5 <5 <5 10.3 <5 21.1 <5 <5 <5 <5 <5 14.5 <5 <5 MW-10 24-Feb-95 423 <10 <10 10.7 <10 <5 <5 377 <5 <5 8.9 <10 <5 <5 <5 <5 7.1 <5 24 <5 9.3 <5 <5 <5 <5 <5 <5 MW-10 16-Mar-95 175 <10 <10 18.4 <10 <5 <5 <10 <5 <5 8.9 <10 <5 <5 <5 <5 12.4 <5 38.2 <5 <5 <5 <5 <5 55.1 <5 <5 MW-10 31-Jul-95 2400 <250 <500 <250 <50 <50 <50 <50 <50 <50 2200 <50 <50 <50 <50 <50 55 <250 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 70 <50 <50 <50 MW-10 29-Mar-96 861 <100 <50 <50 <10 14.1 <5 <5 <5 <10 548 <5 <5 6.1 <10 <5 <5 <20 <5 <10 7.7 10.2 32.1 <100 <5 <5 <5 <5 <5 22.9 7 <5 MW-10 30-Sep-96 271 <50 12.6 <5 <5 <5 <10 266 <5 <5 7.1 <5 <5 <10 <5 <25 <5 <10 <5 32.9 <5 <100 <5 <5 <5 <5 <5 <5 <5 MW-10 24-Mar-97 105 <100 <50 <50 <10 8.1 <5 <5 <5 <10 191 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 6.4 <5 25.9 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 12.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 30-Mar-98 <50 <100 <50 <50 <10 6.97 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 5.23 <5 20.1 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 21-Sep-98 <50 <100 <50 <50 <10 6.57 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 7.12 <5 26.1 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 5.75 <5 19.2 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 7.41 11.4 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 19-Mar-01 <50 <100 <50 <50 <10 7.1 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 7.41 10.9 <100 <5 16.4 <5 <5 <5 <5 <5 <5 MW-10 25-Sep-01 <50 <100 <50 <50 <10 11.8 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 7.41 12 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 3 <25 <5 <10 <5 7.41 12.8 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 16-Sep-02 <50 <50 <50 15 <5 <5 <5 <10 <50 <5 <5 7.42 11.7 <5 <10 <5 <25 <5 <10 <5 <5 10.7 <100 <5 30.9 <5 <5 <5 <5 <5 <5 MW-10 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 17.8 <5 <5 <5 <5 <5 <5 MW-10 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-10 30-Mar-04 <25 <20 <10 <10 <10 10.3 <1 <1 <1 <1 <25 <1 <1 3.2 <1 <1 <1 <100 <1 <5 <1 2.4 <1 16.8 <10 3.3 24.2 <1 <1 <1 2.4 4.6 <1 MW-10 24-Sep-04 <50 <50 <50 8.1 <5 <5 <5 <10 <5 <5 6.72 <10 <5 <10 <5 <25 <10 <5 <5 19.9 <100 <5 15 <5 <5 <5 <5 <5 <5 MW-10 15-Mar-05 <100 <100 <100 <200 <10 9.3 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 18.4 <100 <5 20.4 <5 <5 <5 <5 <5 <5 MW-10 20-Sep-05 <100 <100 <100 <200 <10 10.6 <5 <5 <5 <10 <100 <100 <10 7 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 15.9 <100 <5 20.3 <5 <5 <5 <5 <5 <5 MW-10 23-Mar-06 <100 <100 <100 <200 <10 10.6 <5 <5 <5 <10 <100 <100 <10 10.2 14.6 <5 <10 <20 <5 <25 <5 <10 <5 <5 18.3 <100 <5 7.9 <5 <5 <5 <5 <5 <5 MW-10 26-Sep-06 <100 <100 <100 <200 <10 9.8 <5 <5 <5 <10 <100 <100 <10 14.4 13.5 <5 <10 <20 <5 <25 <5 <10 <5 <5 20.2 <100 <5 5.9 <5 <5 <5 <5 <5 <5 MW-10 21-Mar-07 <100 <50 <50 <200 <10 10 <3 <3 <3 <10 <100 <100 <5 11.5 9.1 <5 <5 <20 <3 <13 <3 <10 <5 <5 19.7 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-10 11-Sep-07 <100 <50 <50 <200 <10 7.8 <3 <1 <3 <10 <100 <100 <1 16.7 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 23.8 <100 <5 <5 1.5 <5 <5 <5 <1 <1 MW-10 19-Mar-08 <100 <50 <50 <200 <10 12.1 <3 <1 <3 <10 <100 <100 <1 3 21.3 <5 <1 <20 <3 <13 <1 <10 <5 <5 14.4 <100 <5 <5 1.2 <5 <5 5 <1 <1 MW-10 23-Sep-08 <100 <50 <50 <200 <10 11.9 <3 <1 <3 <10 <100 <100 <1 4.1 23.9 <5 <1 <20 <3 <13 <1 <10 <5 <5 15.9 <100 <5 <5 1.2 <5 <5 5 <1 <1 MW-10 18-Mar-09 2.9 U U U U 9.3 U U U 14.7 U U U 4.8 U U U U U U U U 1.5 U 17.2 U 3 0.7 0.9 U 3.3 0.5 U MW-10 22-Sep-09 2 U U U U 7.1 U U U U 1.6 U U 8.1 7.5 U U U U U U U 1.9 U 18.8 U 2.4 0.6 0.8 U 2.1 0.4 U MW-10 23-Mar-10 U U U U U 5.1 U U U U U U U 9 5.5 U U U U U U U 1.4 U 14.2 U 1 0.4 U U U 1.5 0.4 U MW-10 21-Sep-10 12 U U U U 7.8 U U U U U U U 14.7 U U U U U U U U 1.9 U 19.1 U 1 0.5 1.5 U U 2.1 0.5 U MW-10 23-Mar-11 12.2 U U U U 9.4 U U U U U U U 8.2 12.8 U 4.2** U U U U U 1.5 U 16.2 U 2.1 U 1.3 0.9 U 3.8 0.6 U MW-10 26-Sep-11 I - - - - - - - - -- - -- - - -- -- -- -- -- -- -- -- - -- -- - -- -- - - - -- -- - - Page 15 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = - N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-10 20-Sep-94 <5 <5 <5 <5 16.7 <10 <10 <5 618 <5 <5 <5 <5 796 <5 <5 <5 <5 <5 <5 21.3 38.7 103 MW-10 7-Dec-94 <5 <5 <5 <5 32.4 <10 <10 <5 202 <5 <5 <5 <5 763 <5 <5 <5 <5 <5 <5 5.6 28.4 77.5 MW-10 24-Feb-95 <5 <5 <5 <5 25 <10 <10 <5 88 <5 <5 <5 <5 144 <5 <5 <5 <5 <5 <5 5.6 24 41 MW-10 16-Mar-95 <5 <5 <5 <5 36.3 <10 <10 8.2 46.6 <5 <5 <5 <5 202 <5 <5 <5 <5 <5 <5 12.3 34.1 10.5 MW-10 31-Jul-95 <50 <50 <50 <50 <50 <50 <250 <50 <50 <50 <50 <250 <500 <50 <50 <50 <50 240 <50 <50 <50 <50 <50 <50 <50 <50 <50 <100 MW-10 29-Mar-96 <5 <5 <5 <5 61 <10 <10 <50 <10 <100 <100 <5 <30 100 13.6 <150 <5 <5 <5 <5 663 <5 <5 <5 <5 <15 <50 15.2 44.7 134 MW-10 30-Sep-96 <5 <5 <5 <5 51.7 <50 <10 <5 <50 <5 <5 <5 <5 393 <5 <5 <5 <5 <15 <50 <10 <5 <5 147 MW-10 24-Mar-97 <5 <5 <5 <5 39.2 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 139 <10 <5 <5 <5 <5 <15 <50 <10 32.9 85.2 MW-10 15-Sep-97 <5 <5 <5 <5 28 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 15.3 <10 <5 <5 <5 <5 <15 <50 <10 20.6 66 MW-10 30-Mar-98 <5 <5 <5 <5 44.7 <10 <10 <50 <10 <100 <100 <5 <30 <50 18.9 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 32.2 46.8 MW-10 21-Sep-98 <5 <5 <5 <5 49.1 <10 <10 <50 <10 <100 <100 <5 <30 <50 13.7 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 38 105 MW-10 22-Mar-99 <5 <5 <5 <5 43.1 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 34.8 49.6 MW-10 20-Sep-99 <5 <5 <5 <5 23.5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 67.8 MW-10 28-Sep-00 <5 <5 <5 <5 12.7 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 21.3 63.4 MW-10 19-Mar-01 <5 <5 <5 <5 8.93 <10 <10 <50 <10 <100 <100 <5 <30 <50 16.3 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 17 49.7 MW-10 25-Sep-01 <5 <5 <5 <5 12 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 18.1 54 MW-10 22-Mar-02 <5 <5 <5 <5 9.21 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 13.5 61.3 MW-10 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 14.6 67.8 MW-10 12-Mar-03 <5 <5 <5 <5 5.28 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 5.4 42.9 MW-10 16-Oct-03 <5 <5 <5 <5 6.17 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-10 30-Mar-04 <1 <1 <1 <1 15 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 15.4 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-10 24-Sep-04 <5 <5 <5 <5 11.8 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-10 15-Mar-05 <15 <5 <10 <10 17.4 <10 <10 <50 <10 <100 <100 <10 <30 <100 18.8 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 63.6 MW-10 20-Sep-05 <15 <5 <10 <10 16.7 <10 <10 <50 <10 <100 <100 <10 <30 <100 12 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 53.3 MW-10 23-Mar-06 <15 <5 <10 <10 16.6 <10 <10 <50 <10 <100 <100 <10 <30 <100 13.5 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 61.2 MW-10 26-Sep-06 <15 <5 <10 <10 9.1 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 51.4 MW-10 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 12 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 58.2 MW-10 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 12.4 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 65.1 MW-10 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 1 <10 <1 <1 <1 <1 <1 <50 1.7 21.7 MW-10 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 2.2 27 MW-10 18-Mar-09 U U U U 0.6 U U U U U U U U U 11 U U U U U 0.6 U U 0.3 U U U U 1.1 19.4 MW-10 22-Sep-09 U U U U 0.6 U U U U U U U U U 12.5 U U U U U 0.6 U U U U U U U 0.8 U 27.1 MW-10 23-Mar-10 U U U U 0.3 U U U U U U U U U 7.1 U U U U U 0.4 U U U U U U U U U 12.7 MW-10 21-Sep-10 U U U U U U U U U U U U U U 8.9 U U U U U 0.6 U U U U U U U 0.7 U 20.5 MW-10 23-Mar-11 U U U U 0.4 U U U U U U U U U 10.4 U U U U U 0.8 U U U U U U U 1.7 U 14 MW-10 26-Sep-11 1 - - - - - - - - - - - - - - - -- -- -- -- -- -- -- -- - - -- I - - Page 16 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m 4) E E m E In y s E m 6 5 m N a) w O m O F w �O OO O d RN O CL O :E U C R 4) E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O Oy VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-11 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 6.5 <5 <5 <5 MW-11 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 24-Feb-95 <10 <10 <10 4.8 <10 <5 <5 <10 <5 <5 <5 20.3 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 5.9 <5 <5 MW-11 17-Mar-95 <10 <10 <10 5.5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 6.7 <5 <5 MW-11 31-Jul-95 <5 <5 <10 <5 <1 5 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 4 <1 <1 7 <1 <1 <1 MW-11 30-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <5 <20 <5 <10 <5 10.2 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 30-Sep-96 50 <50 7.7 <5 <5 <5 <10 <50 <5 <5 <20 <5 <5 <10 <5 <25 <5 <10 <5 <5 <100 <5 <5 <5 <5 7.4 <5 <5 MW-11 24-Mar-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11^ 28-Sep-00 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-11 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 29-Oct-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 18-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 30-Mar-04 <25 <20 <10 <10 <10 2.2 <1 <1 <1 <1 <25 <1 <1 2.1 1.1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 1.2 <1 <1 <1 MW-11 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-11 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-11 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-11 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-11 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-11 18-Mar-09 U U U U U 0.8 U U U U U U U 1.8 1 U U U 0.2 U U U U U 0.7 U U U U 0.6 U U U MW-11 22-Sep-09 1.3 U U U U 0.8 U U U U U U U 1.8 0.5 U U U U U U U U U 0.3 U 0.2 U U 0.3 U U U MW-11 23-Mar-10 U U U U U 1.2 U U U U U U U 1.1 1.6 U U U U U U U U U 0.5 U U U U U 0.9 U U U MW-11 21-Sep-10 U U U U U 0.6 U U U U U U U 1.2 0.6 U U U U U U U U U 0.5 U U U U U U U U U MW-11 23-Mar-11 U U U U U 1.2 U U U U U U U 1.2 1.2 U 2.8** U U U U U U U 0.6 U U U U U 0.5 U U U MW-11 26-Sep-11 U U U U U 0.7 U U U U U U U 0.9 U U U U U U U U U U 0.5 U U U U U U U U U MW-11 27-Mar-12 U U U U U 0.3 U U U U U U U 0.4 U U U U U U U U U U U U U U U U U U U U MW-11 18-Sep-12 U U U U U 0.4 U U U U U U U 0.7 U U U U U U U U U U 0.5 U U U U U U U U U MW-11 13-Mar-13 U U U U U 0.8 U U U U U U U 1.1 U U U U U U U U U U 0.8 U U U U U U U U U MW-11 24-Sep-13 U U U U U 1.9 U U U U U U U 2.7 2.9 U U U U U U U U U 1.8 U U U U U 0.4 U U U MW-11 25-Mar-14 21.00J U U U U 1.20 U U U U U U U 1.60J 2.20J U U U U U U U U U 1.10 U U U U U 0.40J U U U MW-11 27-May-15 U U U U U 0.901 U U U U U U U 0.70J 1.20J U U U U U U U U U U U U U U U U U U U MW-11 29-Sep-15 50.90J U U U U 1.30 U U U U U 0.30J U 1.60J 1.20J U U U U U U U U U 0.80J U U U U U U U U U MW-11 15-Mar-16 U U U U U 1.30 U U U U U U U 0.80J 1.10J U U U U U U U U U U U U U U U U U U U MW-11 27-Sep-16 U U U U U 1.10 U U U U U U U 1.10J 0.50J U U U U U U U U U U U U U U U U U U U MW-11 22-Mar-17 U U U U U 1.40 U U U U U U U 1.60J U U U U U U U U U U 0.60J U U U U U U U U U MW-11 28-Sep-17 U U U U U 1.50 U U U U U U U 2.20J 1.10J U U U U U U U U U 0.901 U U U U U U U U U MW-11 14-Mar-18 U U U U U 0.70J U U U U U U U 1.901 U U U U U U U U U U 0.80J U U U U U U U U U MW-11 20-Sep-18 9.65J U U U U 0.30J U U U U U U U 0.81J U U U U U U U U U U 0.40J U U U O. 0 U U U U Page 17 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q (aOCI! Z Q V) d LL O d O N N N o = U = - N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-11 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-11 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-11 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 5.3 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-11 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-11 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 3 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 2 <1 <2 MW-11 30-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 30-Sep-96 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-11 24-Mar-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 MW-11 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11^ 28-Sep-00 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-11 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 29-Oct-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 18-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <100 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-11 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-11 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-11 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-11 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-11 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-11 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-11 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-11 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-11 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-11 18-Mar-09 U U U U U U U U U U U U U U 1.3 U U U U U U U U U U U U U U U MW-11 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 21-Sep-10 U U U U U U U U U U U U U U 1.1 U U U U U U U U U U U U U U U MW-11 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-11 20-Sep-18 I U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 18 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m 4) E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R 4) E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-12 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 12.1 <5 <5 <5 12.6 <5 <5 MW-12 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 6 <5 <5 <5 5.8 <5 <5 MW-12 31-Jul-95 <5 <5 <10 <5 <1 2 <1 <1 <1 <1 <5 <1 <1 <1 1 <1 <1 <5 <1 <1 <1 <1 <1 <1 1 <1 <1 6 <1 <1 11 <1 <1 <1 MW-12 29-Mar-96 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <5 <20 <5 <10 <5 10.2 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12^ 30-Sep-96 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-12 15-Sep-97 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 30-Mar-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 21-Sep-98 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 7.1 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 5.12 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 22-Mar-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 20-Sep-99 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 35.9 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 17-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 18-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 30-Mar-04 <25 <20 <10 <10 <10 1.8 <1 <1 <1 <1 <25 <1 <1 4.1 <1 <1 <1 <100 <1 <5 <1 <1 <1 5.2 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-12 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-12 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 4,2 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-12 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-12 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 1.7 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-12 23-Sep-08 <100 <50 <50 <200 <10 2.6 <3 <1 <3 <10 <100 <100 <1 10 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 7 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-12 18-Mar-09 1.6 U U U U 1.1 U U U U U U U 4.1 0.3 U 0.2 U U U U U U U 3.1 U U 0.2 U 0.5 U U U MW-12 22-Sep-09 U U U U U 1 U U U U U U U 4 U U U U U U U U U U 2.7 U U U U 0.3 U U U MW-12 23-Mar-10 U U U U U 1.3 U U U U U U U 3.6 U U U U U U U U U U 3.7 U U U U U U U U U MW-12 21-Sep-10 U U U U U 0.4 U U U U U U U 1.7 U U U U U U U U U U 1 U U U U U U U U U MW-12 23-Mar-11 10.6 U U U U U U U U U U U U 1 U U 2.3** U U U U U U U 0.7 U U U U U U U U U MW-12 26-Sep-11 U U U U U 0.9 U U U U U U U 3.5 U U U U U U U U U U 2.5 U U U U U U U U U MW-12 27-Mar-12 U U U U U 0.8 U U U U U U U 3.2 U U U U U U U U U U 3.8 U U U U U U U U U MW-12 18-Sep-12 27.6 U U U U 1.3 U U U U U U U 4.5 U U U U U U U U U U 3.1 U U U U U U U U U MW-12 13-Mar-13 27.6 U U U U 1.1 U U U U U U U 4 U U U U U U U U 0.6 U 3.4 U U U U U U U U U MW-12 24-Sep-13 19.1 U U U U 1 U U U U U U U 3.7 U U U U U U U U 0.5 U 3.1 U U U U U U U U U MW-12 25-Mar-14 11.00J U U U U 0.901 U U U U U U U 2.30J U U U U U U U U U U 2.80 U U U U U U U U U MW-12 27-May-15 123.00 U U U U 2.00 U U U U 11.50J U U 7.30 0.60J U U U U U U U 1.20J U 8.40 U U U U U U U U U MW-12 29-Sep-15 67.00J U U U U 2.70 U U U U 6.60J U U 10.20 U U U U U U U U 2.40J U 10.80 U U U U U U U U U MW-12 15-Mar-16 15.00J U U U U 2.60 U U U U U U U 10.20 U U U U U U U U 3.20J 0.60J 9.90 U U 0.20J U U U U U U MW-12 27-Sep-16 U U U U U 1.40 U U U U U U U 5.90 U U U U U U U U 2.10J U 5.50 U U U U U U U U U MW-12 22-Mar-17 U U U U U 0.60J U U U U U U U 2.10J U U U U U U U U 0.60J U 2.10 U U U U U U U U U MW-12 28-Sep-17 U U U U U 0.40J U U U U U U U 1.60J U U U U U U U U U U 1.00 U U U U U U U U U MW-12 14-Mar-18 U U U U U U U U U U U U U 0.801 U U U U U U U U U U U U U U U U U U U U MW-12 20-Sep-18 1 11.50J I U U U U 0.54J U U U U I U U U 2.32J I U U U U U U U U 0.63J U 1.45 1 U U U I 0.03J U U U U U Page 19 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M cc = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a Q ccO Z Q V) d LL O d O N N N o = U = - N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (I) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-12 20-Sep-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-12 7-Dec-94 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-12 24-Feb-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-12 17-Mar-95 <5 <5 <5 <5 <5 <10 <10 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <5 <5 MW-12 31-Jul-95 <1 <1 <1 <1 <1 <1 <5 <1 <1 2 <1 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 2 2 <2 MW-12 29-Mar-96 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12^ 30-Sep-96 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-12 15-Sep-97 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 30-Mar-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 21-Sep-98 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 22-Mar-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 20-Sep-99 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 17-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 18-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 22.7 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 30-Mar-04 <1 <1 <1 <1 <1 <1 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-12 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-12 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-12 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-12 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-12 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-12 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-12 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-12 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-12 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-12 18-Mar-09 U U U U U U U U U U U U U U 0.2 U U U U U U U U U U U U U U U MW-12 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-12 1 20-Sep-18 1 UjUjUj U U I U IUIUIUIUIUIUIUIUI U I U U U U I U U U U U U U U U Jul U U U U Page 20 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-100S 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 14.2 <5 <5 <5 <5 <5 <5 MW-100S 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <20 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 22.1 <5 <5 <5 <5 <5 <5 MW-100S 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 17-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 30-Mar-04 <25 <20 <10 <10 <10 3.9 <1 <1 <1 <1 <25 <1 <1 2.6 7 <1 <1 <100 <1 <5 <1 <1 <1 6.7 <10 <1 10.2 1.4 <1 1.1 <1 <1 <1 MW-100S 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 8.43 <5 <5 <5 <5 <5 <5 MW-100S 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100S 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-100S 11-Sep-07 <100 <50 <50 <200 <10 1.4 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 7.3 <100 <5 <5 1.4 <5 <5 <5 <1 <1 MW-100S 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-100S 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 2.2 <100 <5 <5 1.3 <5 <5 <5 <1 <1 MW-100S 18-Mar-09 2.1 U U U U U U U U U 2 U U U U U U U U U U U U U U U U U U U U U U MW-100S 22-Sep-09 U U U U U 0.8 U U U U 0.9 U U 1 U U U U U U U U 0.3 U 5.1 U U 0.8 1.4 U U U U MW-100S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U 0.9 U U 0.2 U U U U U U MW-100S 23-Mar-11 U U U U U U U U U U U U U U U U 2 U U U U U U U U U U U U U U U U U MW-100S 26-Sep-11 U U U U U 1 U U U U U U U 1.5 U U U U U U U U 0.5 U 7.5 U U 0.6 1.3 U U U U U MW-100S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 18-Sep-12 U U U U U U U U U U U U U 0.4 U U U U U U U U U U 2 U U U 0.3 U U U U U MW-100S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U 0.6 U U U U U U U U U MW-100S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 28-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 30-Sep-15 U U U U U U U U U U U U U 0.40J U U U U U U U U U U 1.70 U U U U U U U U U MW-100S 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U 0.80J U U U U U U U U U MW-100S 23-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U 0.60J U U U U U U U U U MW-100S 15-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 24-Sep-18 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 21 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q (aOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-100S 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 17-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 2 <5 <5 MW-100S 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100S 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100S 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100S 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100S 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100S 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-100S 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-100S 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-100S 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-100S 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 28-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 23-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 15-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100S 1 24-Sep-18 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 22 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y s E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O Oy VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-100D 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 20-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 6.11 <5 <5 <5 <5 <5 <5 MW-100D 17-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 30-Mar-04 <25 <20 <10 <10 <10 <1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 1.1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-100D 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-100D 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6.6 <100 <5 7.7 <5 <5 <5 <5 <5 <5 MW-100D 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 6.7 <100 <5 8.8 <5 <5 <5 <5 <5 <5 MW-100D 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 7.2 <100 <5 8.1 <5 <5 <5 <5 <5 <5 MW-100D 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 8.5 <100 <5 8.1 <5 <5 <5 <5 <5 <5 MW-100D 21-Mar-07 <100 <50 <50 <200 <10 3.2 <3 <3 <3 <10 <100 <100 <5 3.2 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 9.8 <100 <5 5.1 3.5 <5 <5 <5 <3 <3 MW-100D 11-Sep-07 <100 <50 <50 <200 <10 2.8 <3 <1 <3 <10 <100 <100 <1 3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 9.5 <100 <5 <5 3.2 <5 <5 <5 <1 <1 MW-100D 19-Mar-08 <100 <50 <50 <200 <10 2.9 <3 <1 <3 <10 <100 <100 <1 3.4 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 10 <100 <5 <5 3.3 <5 <5 <5 <1 <1 MW-100D 23-Sep-08 <100 <50 <50 <200 <10 2.9 <3 <1 <3 <10 <100 <100 <1 3.7 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 11 <100 <5 <5 4.6 <5 <5 <5 <1 <1 MW-100D 18-Mar-09 1.7 U U U U 2.5 U U U U U U U 3 1 U U U U U 3 U 0.8 U 11.5 U U 3 4.8 0.7 U 0.4 U MW-100D 22-Sep-09 1.3 U U U U 2.3 U U U U U U U 3 0.4 U U U U U U U 0.8 U 11.8 U 0.7 2.2 4.7 0.7 U 0.4 U MW-100D 23-Mar-10 U U U U U 2.5 U U U U U U U 2.6 0.6 U U U U U U U 0.7 U 9.9 U U 2.3 U U 0.7 U 0.4 U MW-100D 21-Sep-10 U U U U U 2.1 U U U U U U U 2.7 U U U U U U U U 0.7 U 11.2 U U 1.5 2.9 U 0.8 U 0.3 U MW-100D 23-Mar-11 U U U U U 1.9 U U U U U U U 3.1 U U 3.8" U U U U U 0.8 U 11.7 U U 1.3 2.7 U 0.4 U 0.3 U MW-100D 26-Sep-11 U U U U U 2.1 U U U U U U U 3.3 U U U U U U U U 0.7 U 10.4 U U 1.4 2.7 U 0.4 U U U MW-100D 27-Mar-12 U U U U U 2.2 U U U U U U U 3.7 U U U U U U U U 0.7 U 11.8 U U 1.1 2.7 U 0.3 U U U MW-100D 18-Sep-12 U U U U U 2 U U U U U U U 3.6 U U U U U U U U 0.8 U 13.4 U U 3 1.1 U 0.3 U 0.3 U MW-100D 13-Mar-13 U U U U U 2 U U U U U U U 3.5 U U U U U U U U 0.8 U 14.2 U U U 2.6 U U U U U MW-100D 24-Sep-13 U U U U U 1.5 U U U U U U U 3.7 U U U U U U U U 0.5 U 9.9 U U 0.8 2.4 U 0.3 U U U MW-100D 25-Mar-14 U U U U U 1.60 U U U U U U U 2.90J U U U U U U U U 0.70J U 12.70 U U 0.70J 1.90 U U U U U MW-100D 27-May-15 U U U U U 1.00 U U U U U U U 2.00J U U U U U U U U 0.40J U 8.90 U U 0.40J 0.80J U U U U U MW-100D 29-Sep-15 12.50 U U U U 0.901 U U U U U U U 1.70J U U U U U U U U U U 7.80 U U 0.30J U U U U U U MW-100D 15-Mar-16 U U U U U 1.20 U U U U U U U 2.30J U U U U U U U U 0.40J U 8.50 U U 0.50J 0.70J U U U U U MW-100D 27-Sep-16 U U U U U 0.70J U U U U U U U 1.50J U U U U U U U U 0.40J U 7.30 U U 0.20J 0.50J U U U U U MW-100D 22-Mar-17 U U U U U 0.801 U U U U U U U 1.60J U U U U U U U U 0.40J U 7.80 U U 0.30J U U U U U U MW-100D 28-Sep-17 U U U U U 0.901 U U U U U 2.40J U 1.70J U U U U U U U U U U 6.60 U U 0.30J U U U U U U MW-100D 14-Mar-18 U U U U U 1.20 U U U U U U U 2.10J U U U U U U U U U U 6.30 U U 0.30J O.50J U U U U U MW-100D 20-Sep-18 1 U I U U U U 1.22 U U U U U U U 3.64 U U U U U U U U 0.54J U 9.59 1 U U U 0.056J U I U U 0.07J U Page 23 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-100D 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 20-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 17-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-100D 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-100D 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100D 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100D 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100D 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-100D 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-100D 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 1.6 <4 MW-100D 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 1.6 <5 MW-100D 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 1.8 <5 MW-100D 18-Mar-09 U U U U U U U U U U U U U U 0.4 U U U U U 0.3 U U U 0.3 U U U 1.3 U 0.5 MW-100D 22-Sep-09 U U U U U U U U U U U U U U 0.3 U U U U U 0.3 U U U 0.3 U U U 1.4 U U MW-100D 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U 0.3 U U U 1.4 U U MW-100D 21-Sep-10 U U U U U U U U U U U U U U U U U U U U 0.3 U U U 0.3 U U U 1.5 U U MW-100D 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 3.9 U MW-100D 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1.3 U MW-100D 27-Mar-12 U U U U U U U U U U U U U U U U U U U 0.2 U U U U U U U U 0.9 U MW-100D 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1 U MW-100D 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1.1 U MW-100D 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1.2 U MW-100D 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.70J U MW-100D 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100D 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100D 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100D 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100D 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100D 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U 6.60 U U U MW-100D 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-100D 20-Sep-18 U U I U I U 148.101 U I U I U I U I U U I U I U I U I U U U U U U U U U U U U U U U 1 0.31 1 U U U Page 24 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) w O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-101D 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 30-Mar-04 <25 <20 <10 <10 <10 <1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-101D 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-101D 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-101D 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-101D 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-101D 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-101D 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.2 U U U U U MW-101D 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U 0.7 0.2 U U 0.3 U U MW-101D 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 23-Mar-11 U U U U U U U U U U U U U U U U 2.8" U U U U U U U U U U U U U U U U U MW-101D 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.2 U U 0.3 U U U MW-101D 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U MW-101D 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.2 U U U U U U MW-101D 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U MW-101D 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U MW-101D 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U U MW-101D 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.20J U U U U U U MW-101D 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U MW-101D 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-101D 1 20-Sep-181 U I U I U U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U Page 25 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q (aOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-101D 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-101D 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-101D 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-101D 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-101D 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-101D 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-101D 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-101D 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-101D 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-101D 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-101D 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U MW-101D 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U 0.4 U U U U U MW-101D 23-Mar-10 U U U U U U U U U U U U U U 0.6 U U U U 0.2 U U U U 0.5 U U U U U MW-101D 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U MW-101D 23-Mar-11 U U U U U U U U U U U U U U U U U U U 0.2 U U U U 0.5 U U U U U MW-101D 26-Sep-11 U U U U U U U U U U U U U U U U U U U 0.2 U U U U 0.5 U U U U U MW-101D 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U 0.4 U U U U U MW-101D 18-Sep-12 U U U U U U U U U U U U U U U U U U U 0.3 U U U U 0.6 U U U U U MW-101D 13-Mar-13 U U U U U U U U U U U U U U U U U U U 0.3 U U U U 0.5 U U U U U MW-101D 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U 0.4 U U U U U MW-101D 25-Mar-14 U U U U U U U U U U U U U U U U U U U 0.20J U U U U 0.60J U U U U U MW-101D 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U MW-101D 29-Sep-15 U U U U U U U U U U U U U U U U U U U 0.20J U U U U 0.50J U U U U U MW-101D 15-Mar-16 U U U U U U U U U U U U U U U U U U U 0.20J U U U U 0.60J U U U U U MW-101D 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U MW-101D 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U MW-101D 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U MW-101D 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U U MW-101D 20-Sep-18 U U U U 4.07 U U U U U U U U U U U U U U U 0.22 U U U U 0.23J U U U U U U U Page 26 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y s E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O Oy VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-102S 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 19-Mar-01 <50 <100 <50 <50 <10 7.77 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 15.5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 17.2 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 18.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 16-Sep-02 <50 <50 <50 7.18 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 13.3 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 9.73 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 7.88 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 31-Mar-04 <25 <20 <10 <10 <10 9.2 <1 <1 <1 <1 <25 <1 <1 3.7 <1 <1 <1 <100 <1 <5 <1 2.1 <1 30.6 <10 <1 3.4 <1 <1 <1 1.4 <1 <1 MW-102S 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 15.8 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 20.9 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 17.8 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 23-Mar-06 <100 <100 <100 <200 <10 5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 18 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 26-Sep-06 <100 <100 <100 <200 <10 5.7 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 19.7 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-102S 21-Mar-07 <100 <50 <50 <200 <10 5.7 <3 <3 <3 <10 <100 <100 <5 3.8 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 25.3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-102S 11-Sep-07 <100 <50 <50 <200 <10 4.6 <3 <1 <3 <10 <100 <100 <1 3.4 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 20 <100 <5 <5 <1 <5 <5 <5 1.3 <1 MW-102S 19-Mar-08 <100 <50 <50 <200 <10 4.8 <3 <1 <3 <10 <100 <100 <1 3.8 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 20.1 <100 <5 <5 <1 <5 <5 <5 1.3 <1 MW-102S 23-Sep-08 <100 <50 <50 <200 <10 5.9 <3 <1 <3 <10 <100 <100 <1 4.3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 24.2 <100 <5 <5 <1 <5 <5 <5 1.3 <1 MW-102S 18-Mar-09 1.3 U U U U 5.4 U U U U 1.2 U U 4.1 U U 0.3 U U U U U 2.6 U 27.9 U 0.7 0.7 U U 0.5 1 U MW-102S 22-Sep-09 2.1 U U U U 5.9 U U U U 2.7 U U 4.7 U U U U U U U U 2.4 U 24.7 U 0.2 0.8 U U 0.4 1.1 U MW-102S 23-Mar-10 U U U U U 6.7 U U U U U U U 4.7 U U U U U U U U 2.5 U 27.8 U U 0.9 U U U 0.5 1.2 U MW-102S 21-Sep-10 U U U U U 6.6 U U U U 2.3 U U 4.9 U U U U U U U U 2.7 U 31.3 U 0.7 0.9 U U U 0.5 1.3 U MW-102S 23-Mar-11 U U U U U 5.4 U U U U U U U 5.1 U U 2.8" U U U U U 2.6 U 26.4 U U 0.8 U U U 0.4 1.1 U MW-102S 26-Sep-11 U U U U U 4.6 U U U U U U U 4.4 U U U U U U U U 2 U 22 U U 0.7 U U U 0.3 0.9 U MW-102S 27-Mar-12 U U U U U 4.6 U U U U U U U 4.4 U U U U U U U U 2.1 U 24.4 U U 0.5 U U U 0.4 0.8 U MW-102S 18-Sep-12 U U U U U 5.1 U U U U U U U 4.9 U U U U U U U U 2.4 U 25.7 U U 0.5 U U U 0.4 0.7 U MW-102S 13-Mar-13 U U U U U 5 U U U U U U U 5.1 U U U U U U U U 2.5 U 26.6 U U 0.4 U U U 0.3 0.7 U MW-102S 24-Sep-13 U U U U U 6.4 U U U U U U U 5.4 U U U U U U U U 2.7 U 28.6 U U U U U U 0.4 0.8 U MW-102S 25-Mar-14 U U U U U 6.80 U U U U U U U 5.90 U U U U U U U U 2.70J U 30.20 U U 0.50J U U U 0.40J 0.70J U MW-102S 27-May-15 U U U U U 6.40 U U U U U U U 6.60 U U U U U U U U 2.90J U 31.40 U U 0.40J U U U 0.40J 0.70J U MW-102S 29-Sep-15 U U U U U 6.30 U U U U U U U 6.10 U U U U U U U U 3.00J U 31.90 U U 0.40J U U U 0.30J U U MW-102S 15-Mar-16 U U U U U 5.30 U U U U U U U 5.80 U U U U U U U U 2.30J 0.60J 26.30 U U U U U U 0.30J 0.70J U MW-102S 27-Sep-16 U U U U U 5.20 U U U U U U U 6.70 U U U U U U U U 3.10J U 32.40 U U 0.30J U U U U 0.70J U MW-102S 22-Mar-17 U U U U U 5.70 U U U U U U U 7.20 U U U U U U U U 2.80J U 31.40 U U 0.50J U U U 0.30J 0.60J U MW-102S 28-Sep-17 U U U U U 4.20 U U U U U U U 6.40 U U U U U U U U 2.40J U 26.80 U U 0.40J U U U U 0.60J U MW-102S 14-Mar-18 U U U U U 4.60 U U U U U U U 5.90 U U U U U U U U 2.10J U 23.10 U 0.80J 0.40J U U U U 0.50J U MW-102S 20-Sep-18 1 U U U U U 3.56 U U U U U U U 5.10 U U U U U U U U 1.99J U 21.90 U U 0.27J 0.11J U U U 0.36 U Page 27 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M (1) M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-102S 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 6.29 MW-102S 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 31-Mar-04 <1 <1 <1 <1 9.8 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-102S 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-102S 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-102S 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-102S 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-102S 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-102S 21-Mar-07 <15 <5 <5 <5 9.1 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 13.3 MW-102S 11-Sep-07 <15 <5 <1 <1 1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-102S 19-Mar-08 <15 <5 <1 <1 3.5 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-102S 23-Sep-08 <15 <5 <1 <1 1.6 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-102S 18-Mar-09 U U U U 3.1 U U U U U U U U U 1 U U U U U U U U U U U U U U 1.5 MW-102S 22-Sep-09 U U U U 1.4 U U U U U U U U U 0.7 U U U U U U U U U U U U U U U MW-102S 23-Mar-10 U U U U 3.1 U U U U U U U U U 0.9 U U U U U U U U U U U U U U 1.2 MW-102S 21-Sep-10 U U U U 0.5 U U U U U U U U U 0.9 U U U U U U U U U U U U U U U MW-102S 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 18-Sep-12 U U U U 0.3 U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 27-May-15 U U U U 4.80 U U U U U U U U U U U U U U U 0.40J U U U U U U U U 2.50J MW-102S 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U 0.901 U U U U U MW-102S 15-Mar-16 U U U U 0.60J U U U U U U U U U U U U U U U U U U U 0.70J U U U U U MW-102S 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-102S 1 20-Sep-18 1 U U U U U I U I U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 28 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) w O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO OsL G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-103S 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 18-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 30-Mar-04 <25 <20 <10 <10 <10 <1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-103S 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-103S 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-103S 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-103S 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-103S 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-103S 18-Mar-09 U U U U U U U U U U U U U U U U 0.2 U U U U U U U U U U U U U U U U U MW-103S 22-Sep-09 1.5 U U U U U U U U U 2.4 U U U U U U U U U U U U U U U U U U U U U U U MW-103S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 23-Mar-11 U U U U U U U U U U U U U U U U 3.5" U U U U U U U U U U U U U U U U U MW-103S 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 20-Sep-18 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 29 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q (aOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-103S 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 18-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 1.6 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-103S 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-103S 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-103S 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-103S 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-103S 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-103S 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-103S 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-103S 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-103S 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-103S 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 27-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 29-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 15-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 27-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 22-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 1 20-Sep-18 I U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 30 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-104S 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 19.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104S 19-Mar-01 <50 <100 <50 <50 <10 5.55 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 22.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104S 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 26.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104S 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 22.6 <5 <5 <5 <5 <5 <5 <5 MW-104S 16-Sep-02 <50 <50 <50 8.29 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 19.5 <100 <5 24 <5 <5 <5 <5 <5 <5 MW-104S 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 20.9 <100 <5 8.73 <5 <5 <5 <5 <5 <5 MW-104S 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 8.87 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104S 30-Mar-04 <25 <20 <10 <10 <10 4.1 <1 <1 <1 <1 <25 <1 <1 5.7 <1 <1 <1 <100 <1 <5 <1 2.6 <1 23 <10 4.4 11.8 2 <1 <1 1.8 <1 <1 MW-104S 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 5.22 <10 <5 <10 <5 <25 <10 <5 <5 17 <100 <5 10.6 <5 <5 <5 <5 <5 <5 MW-104S 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 9 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 39.5 <100 <5 6.1 <5 <5 <5 <5 <5 <5 MW-104S 20-Sep-05 <100 <100 <100 <200 <10 5.1 <5 <5 <5 <10 <100 <100 <10 6.9 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 35.5 <100 <5 11.8 <5 <5 <5 <5 <5 <5 MW-104S 23-Mar-06 <100 <100 <100 <200 <10 5.8 <5 <5 <5 <10 <100 <100 <10 7.4 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 31.4 <100 <5 13.1 <5 <5 <5 <5 <5 <5 MW-104S 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 10.3 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 43.6 <100 <5 9.9 <5 <5 <5 <5 <5 <5 MW-104S 21-Mar-07 <100 <50 <50 <200 <10 3.5 <3 <3 <3 <10 <100 <100 <5 10.7 <5 <5 <5 <20 <3 <13 <3 <10 4.1 <5 36 <100 <5 6.6 <3 <5 <5 <5 <3 <3 MW-104S 11-Sep-07 <100 <50 <50 <200 <10 3.9 <3 <1 <3 <10 <100 <100 <1 14.9 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 38.3 <100 <5 6.4 1.6 <5 <5 <5 1.7 <1 MW-104S 19-Mar-08 <100 <50 <50 <200 <10 6.1 <3 <1 <3 <10 <100 <100 <1 10.3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 21.2 <100 <5 17.2 2.7 <5 <5 <5 2.3 <1 MW-104S 23-Sep-08 <100 <50 <50 <200 <10 4.8 <3 <1 <3 <10 <100 <100 <1 11.9 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 24.9 <100 <5 11.5 2.3 <5 <5 <5 2.3 <1 MW-104S 18-Mar-09 U U U U U 3.5 U U U U U U U 11.1 U U U U U U U U 2.8 U 24 U 0.8 7.3 1.5 U 1.5 1 U MW-104S 22-Sep-09 U U U U U 2.1 U U U U 1.1 U U 5.1 U U U U U U U U 2 U 19.8 U 0.6 4.6 1.3 U 1 1.1 U MW-104S 23-Mar-10 U U U U U 0.3 U U U U U U U 0.7 U U U U U U U U 0.4 U 7 U U 0.9 U U U U U U MW-104S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U 8.7 U U 0.6 U U U U U U MW-104S 23-Mar-11 U U U U U 2.3 U U U U U U U 2.6 2.5 U 4.1" U U U U U 0.9 U 9.1 U U 2.8 1.6 U U 1.6 0.6 U MW-104S 26-Sep-11 U U U U U 3.6 U U U U U U U 4.3 2.8 U U U U U U U 0.8 U 9.4 U 0.8 4.6 1.8 U U 2.3 0.8 U MW-104S 27-Mar-12 U U U U U 3.7 U U U U U U U 6.8 3 U U U U U U U 1.1 U 13.6 U U 2.4 1.8 U U 2.1 0.5 U MW-104S 18-Sep-12 U U U U U 0.5 U U U U U U U 1 U U U U U U U U U U 3.2 U U 0.8 0.3 U U U U U MW-104S 13-Mar-13 U U U U U 1.6 U U U U U U U 3.2 1.3 U U U U U U U 0.6 U 8.4 U U 1.5 U U U 0.8 0.3 U MW-104S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 25-Mar-14 U U U U U 1.10 U U U U U U U 1.00i U U U U U U U U 0.40J U 3.90 U U 3.90J U U U 0.80J 0.40J U MW-104S 28-May-15 U U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U U U U U MW-104S 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 23-Mar-17 U U U U U 0.80J U U U U U U U 1.30J 0.90J U U U U U U U U U 3.40 U U 2.10J U U U 0.50J 0.40J U MW-104S 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U 0.80J U U U U U U U U U MW-104S 15-Mar-18 U U U U U 1.80 U U U U U U U 2.10J 2.60J U U U U U U U 0.70J U 6.00 U U 1.60J 0.60J U U 0.80J 0.50J U MW-104S 24-Sep-18 U U U U U U U U U U U U U U U U U U U U U U U U 0.76J U U 0.26J 0.14J U U U 0.09J U Page 31 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-104S 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 20.3 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 6.18 MW-104S 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 30-Mar-04 <1 <1 <1 <1 1.6 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 6.4 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 1.4 <5 <5 MW-104S 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104S 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 16.3 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104S 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 10.1 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104S 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104S 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104S 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-104S 11-Sep-07 <15 <5 <1 <1 1.4 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 <1 <4 MW-104S 19-Mar-08 <15 <5 <1 <1 1.2 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-104S 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-104S 18-Mar-09 U U U U 0.5 U U U U U U U U U 6.1 U U U U U U U U U U U U U U U MW-104S 22-Sep-09 U U U U U U U U U U U U U U 4.6 U U U U U U U U U U U U U U U MW-104S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 23-Mar-11 U U U U 0.4 U U U U U U U U U 1.1 U U U U U U U U U U U U U 0.9 U MW-104S 26-Sep-11 U U U U 0.4 U U U U U U U U U 1.2 U U U U U 0.3 U U U U U U U 1.3 U MW-104S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 13-Mar-13 U U U U U U U U U U U U U U 1 U U U U U U U U U U U U U U U MW-104S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.70J U MW-104S 28-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 23-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1.30 U MW-104S 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-104S 15-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1.1 U U U MW-104S 1 24-Sep-18 1 U U U U 7.81 U U U U U U U U U U U U U U U U U U U U U U U U I U I U U U Page 32 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO CO d m N E E m E In y E m 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-104D 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104D 19-Mar-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104D 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104D 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-104D 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 10.8 <5 <5 <5 <100 <5 6.78 <5 <5 <5 <5 <5 <5 MW-104D 29-Oct-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 8.33 <5 <5 <5 <5 <5 <5 MW-104D 12-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 9.2 <5 <5 <5 <5 <5 <5 <5 MW-104D 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 13.8 <5 <5 <5 <5 <5 <5 <5 MW-104D 30-Mar-04 <25 <20 <10 <10 <10 1.8 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <10 9.8 <1 <1 <1 5.6 <1 <1 <1 MW-104D 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 10.1 <5 <5 5.66 <5 <5 MW-104D 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 13 10.1 <5 <5 6.8 <5 <5 <5 MW-104D 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 9.8 <5 <5 5.7 <5 <5 <5 MW-104D 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 12.8 15.8 <5 <5 8.8 <5 <5 <5 MW-104D 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 16.3 21 <5 <5 10.8 <5 <5 <5 MW-104D 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 7.8 16.3 <3 <5 8.7 <5 <3 <3 MW-104D 11-Sep-07 <100 <50 <50 <200 <10 1.9 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 1 <100 8.5 16.8 <1 <5 8.2 <5 1.3 <1 MW-104D 19-Mar-08 <100 <50 <50 <200 <10 1.9 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 1.2 <100 7.1 15.8 <1 <5 7.5 <5 1.3 <1 MW-104D 23-Sep-08 <100 <50 <50 <200 <10 2 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 1.3 <100 10.6 17.4 <1 <5 8 <5 1.3 <1 MW-104D 18-Mar-09 U U U U U 1.8 U U U U U U U U U U U U U U U U U U 1.6 U 8.1 13.7 0.5 6.9 1.4 1.2 U MW-104D 22-Sep-09 U U U U U 1.8 U U U U 1.1 U U U U U U U U U U U U U 1.3 U 13.1 13.6 0.5 7 U 1.1 U MW-104D 23-Mar-10 U U U U U 2.2 U U U U U U U U U U U U U U U U U U 1.4 U 9.2 17 0.6 U 8.3 1.9 1.5 U MW-104D 21-Sep-10 U U U U U 2.4 U U U U U U U U U U U U U U U U U U 1.9 U 10.7 18.8 0.7 U 8.8 2.3 1.6 U MW-104D 23-Mar-11 U U U U U 2 U U U U U U U U U U 3** U U U U U U U 1.7 U 7.3 15.4 0.7 U 7.7 1.7 1.4 U MW-104D 26-Sep-11 U U U U U 1.8 U U U U U U U U U U U U U U U U U U 1.7 U 7.9 13.7 0.6 U 6.4 1.5 1.4 U MW-104D 27-Mar-12 U U U U U 1.8 U U U U U U U U U U U U U U U U U U 1.5 U 3.5 13.3 0.5 U 5.5 1.6 1.2 U MW-104D 18-Sep-12 U U U U U 2 U U U U U U U U U U U U U U U U U U 2 U 5.5 13.5 0.6 U 5.2 1.7 1.4 U MW-104D 13-Mar-13 U U U U U 1.9 U U U U U U U U U U U U U U U U U U 1.6 U 4.8 14.3 U U 5.6 1.5 1.4 U MW-104D 24-Sep-13 U U U U U 2.1 U U U U U U U U U U U U U U U U U U 2 U 4.5 14 0.7 U 5.2 1.6 1.3 U MW-104D 25-Mar-14 U U U U U 2.40 U U U U U U U U U U U U U U U U U U 2.20 U U 17.30 0.80J U 6.50 1.80J 1.70 U MW-104D 27-May-15 U U U U U 1.80 U U U U U U U U U U U U U U U U U U 2.10 U U 12.60 0.60J U 4.50J 1.10J 1.20 U MW-104D 29-Sep-15 U U U U U 3.00 U U U U U U U 0.30J U U U U U U U U U U 2.70 U U 16.60 U U 6.30 1.70J 1.80 U MW-104D 15-Mar-16 U U U U U 2.70 U U U U U U U U U U U U U U U U U U 2.40 U 2.70J 14.90 0.70J U 5.70 1.40J 1.50 U MW-104D 27-Sep-16 U U U U U 2.50 U U U U U U U 0.40J U U U U U U U U U U 2.70 U 2.40J 14.50 U U 5.80 1.40J 1.30 U MW-104D 22-Mar-17 U U U U U 3.10 U U U U U U U 0.40J U U U U U U U U U U 2.90 U 3.20J 20.90 U U 8.80 2.00J 1.70 U MW-104D 28-Sep-17 U U U U U 2.00 U U U U U U U U U U U U U U U U U U 2.30 U U 14.30 0.60J U 5.40 1.00J 1.40 U MW-104D 14-Mar-18 U U U U U 2.10 U U U U U U U U U U U U U U U U U U 2.00 U 4.20J 15.90 0.60J U 6.60 1.10J 1.40 U MW-104D 20-Sep-18 U U U U U 2.61 U U U U U U U 0.38J U U U U U U U U U U 2.88 U U 17.30 0.68 U 7.85 1.60J 1.53 U Page 33 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M rn M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U > d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-104D 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 29-Oct-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 14.6 <5 <5 MW-104D 30-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 2 <1 <1 <1 <1 3.8 <1 <1 <10 2.8 <5 <5 MW-104D 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-104D 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104D 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104D 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104D 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-104D 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 3.5 <5 <8 <50 7 <5 <5 <4 MW-104D 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 1.8 <1 <10 <1 <5 3.7 <1 <1 <5 8.1 <4 MW-104D 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 1.3 <1 <10 <1 <1 3.9 <1 <1 <50 8 <5 MW-104D 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 1.4 <1 <10 <1 <1 3.9 <1 <1 <50 11.2 <5 MW-104D 18-Mar-09 U U U U U U U U U U U U U U 0.8 U U U U 1.6 U U U U 3.1 0.2 U U 9.1 U MW-104D 22-Sep-09 U U U U U U U U U U U U U U 1 U U U U 0.9 U U U U 3.8 U U U 10 U MW-104D 23-Mar-10 U U U U U U U U U U U U U U U U U U U 1.8 U U U U 3.4 0.7 U U 10.9 U MW-104D 21-Sep-10 U U U U U U U U U U U U U U U U U U U 2.1 U U U U 3.6 U U U 14.5 U MW-104D 23-Mar-11 U U U U U U U U U U U U U U U U U U U 1.9 U U U U 3.1 U U U 8.5 U MW-104D 26-Sep-11 U U U U U U U U U U U U U U U U U U U 1.5 U U U U 2.6 U U U 8.6 U MW-104D 27-Mar-12 U U U U U U U U U U U U U U U U U U U 0.2 U U U U 3.5 U U U 6.9 U MW-104D 18-Sep-12 U U U U U U U U U U U U U U U U U U U 1.6 U U U U 2.4 U U U 8.1 U MW-104D 13-Mar-13 U U U U U U U U U U U U U U U U U U U 1.2 U U U U 2.1 U U U 8 U MW-104D 24-Sep-13 U U U U U U U U U U U U U U U U U U U 1.4 U U U U 2.4 U U U 12.8 U MW-104D 25-Mar-14 U U U U U U U U U U U U U U U U U U U 1.10 U U U U 2.20 U U U 9.90 U MW-104D 27-May-15 U U U U U U U U U U U U U U U U U U U 1.00 U U U U 1.90 U U U 7.30 U MW-104D 29-Sep-15 U U U U U U U U U U U U U U U U U U U 1.30 U U U U 2.20 U U U 13.80 U MW-104D 15-Mar-16 U U U U U U U U U U U U U U U U U U U 0.80J U U U U 2.20 U U U 7.40 U MW-104D 27-Sep-16 U U U U U U U U U U U U U U U U U U U 0.70J U U U U 2.10 U U U 9.10 U MW-104D 22-Mar-17 U U U U U U U U U U U U U U U U U U U 0.70J U U U U 1.6 U U U 17.10 U MW-104D 28-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U 1.90 U U U 7.60 U MW-104D 14-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U 1.40 U U U 10.70 U U U MW-104D 20-Sep-18 U U U U 7.49 U U U U U U U U U U U U U U U 1 0.83 U U U U 1 1.90 1 U I U I U 113.20, U I U U Page 34 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N In Na E OOO Ca d m N E E m E In y E m 6 5 m N a) w O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r Ca d s EO OsL G CN a) O O Cd C O C N CN s a) O C c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 1 0.4 0.04 0.02 70(1)1 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-105S^^ 26-May-00 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <5 <25 <5 <10 <5 <5 12 <100 <5 <5 <5 <5 37.3 <5 <5 <5 MW-105S 28-Sep-00 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 11.4 <100 <5 <5 <5 <5 77.8 <5 <5 <5 MW-105S 19-Mar-01 <50 <100 <50 <50 <10 5.48 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 11.2 <100 <5 <5 <5 <5 65.2 <5 <5 <5 MW-105S 25-Sep-01 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14.2 <100 <5 <5 <5 <5 42.6 <5 <5 <5 MW-105S 22-Mar-02 NO Data MW-105S 17-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 10.8 <5 <5 8.87 <100 <5 6.78 <5 <5 18.2 <5 <5 <5 MW-105S 12-Mar-03 724 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 10.6 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-105S 16-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 18.8 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-105S 31-Mar-04 <25 <20 <10 <10 <10 3 <1 <1 <1 <1 <25 <1 <1 3.4 <1 <1 <1 <100 <1 <5 <1 1.3 <1 23.8 <10 <1 <1 <1 <1 4.5 <1 <1 <1 MW-105S 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 17.8 <100 <5 <5 <5 <5 20.1 <5 <5 <5 MW-105S 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 18.7 <100 <5 <5 <5 <5 34.2 <5 <5 <5 MW-105S 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 17.4 <100 <5 <5 <5 <5 26.8 <5 <5 <5 MW-105S 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 14.4 <100 <5 <5 <5 <5 38 <5 <5 <5 MW-105S 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 13.1 <100 <5 <5 <5 <5 39 <5 <5 <5 MW-105S 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 3.4 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 11.6 <100 <5 <5 <3 <5 24.7 <5 <3 <3 MW-105S 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 3.6 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 10.7 <100 <5 <5 <1 <5 12.7 <5 <1 <1 MW-105S 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 8.3 <100 <5 <5 <1 <5 6 <5 <1 <1 MW-105S 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 4.6 <100 <5 <5 <1 <5 5.3 <5 <1 <1 MW-105S 18-Mar-09 2.4 U U U U U U U U U 1.5 U U 1.4 U U U U U U U U 0.7 U 5.1 U U 0.4 U 3.9 U U U MW-105S 22-Sep-09 2.4 U U U U U 0.3 U U U 1.1 U U 1.8 U U 1 U U U U U 0.7 U 4.4 U 0.3 0.6 U 6.2 U U U MW-105S 23-Mar-10 U U U U U 0.6 U U U U U U U 1.4 U U U U U U U U 0.5 U 3.5 U U 0.6 U U 5.1 U U U MW-105S 21-Sep-10 MW-105S 23-Mar-11 MW-105S 26-Sep-11 MW-105S 27-Mar-12 MW-105S 18-Sep-12 MW-105S 13-Mar-13 MW-105S 24-Sep-13 U U U U U 1.7 U U U U U U U 6.1 U U U U U U U U 2.3 U 7.5 U U 0.8 U U 9 U U U MW-105S 25-Mar-14 U U U U U 1.60 U U U U U U U 5.80 U U U U U U U U 2.00J U 7.50 U U 0.70J U U 7.90 U U U MW-105S 27-May-15 U U U U U 0.70J U U U U U U U 1.20J U U U U U U U U 0.40J U 2.30 U U U 0.40J 2.40J U U U MW-105S 29-Sep-15 U U U U U 0.70J U U U U U U U 1.10J U U U U U U U U U U 1.90 U U 0.30J U U 1.901 U U U MW-105S 15-Mar-16 U U U U U 0.50J U U U U U U U 0.80J U U U U U U U U U U 1.40 U U U U U 1.70J U U U MW-105S 27-Sep-16 U U U U U 0.501 U U U U U U U 0.80J U U U U U U U U U U 1.40 U U U U U 1.40J U U U MW-105S 22-Mar-17 U U U U U 0.50J U U U U U U U 0.70J U U U U U U U U U U 1.20 U U 0.30J U U 2.10J U U U MW-105S 28-Sep-17 U U U U U 0.60J U U U U U 0.30J U 0.80J U U U U U U U U U U 1.30 U U 0.30J U U 2.00J U U U MW-105S 14-Mar-18 U U U U U 0.90J U U U U U U U 1.50J U U U U U U U U U U 2.20 U U 0.30J U U 2.80J U U U MW-105S 20-Sep-18 U U U U U 0.61J U U U U U 1.01J U 1.17J U U U U U U U U U U 1.81 U U 0.27J 0.04J U 2.26J U 0.06J U Page 35 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill wQ. O f6 ❑ £ M (n C M O o L U ❑ N N C N O o L U ❑ d d Q O t U 0 M 0 U d O O O L `-' ❑ M C 1° m = K O ❑ N C d T t W « L N T L W G7 = d R 7 c C U X y 2 a C C X N 2 N C l0 L E O 'O 2 O t c°� Q .. d O A ` �, E M « N Gl 'O O v N >. ._. N N M i U N >. N d O = •�+ = a N s d a C N R= s Q m Z " �, O O' Q N = i V) d L N O O L H N d L N O C L H N N N N t o = U N F y = 7 O H = N = d O ° r U H N N = R d O ° L U H N = l0 N O ° r U H N N = N O O V H d 16 L E 3 O C U H = R Q O- O ° t V H A N V Q >. = > N ° p L U , C_ > d N T �( O N d T X Q aS E _^ R r0+ N N 47 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-105S^^ 26-May-00 <5 <5 <5 <5 <5 <10 <50 <10 <5 <30 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-105S 28-Sep-00 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 7.37 6.16 MW-105S 19-Mar-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 19.2 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 10.5 <5 <15 <50 <10 7.2 <5 MW-105S 25-Sep-01 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 11.2 <5 <15 <50 <10 <5 <5 MW-105S 22-Mar-02 <5 <5 MW-105S 17-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-105S 12-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-105S 16-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-105S 31-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 1.4 <1 <1 <10 <1 <5 <5 MW-105S 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 6.61 <50 <5 <5 <5 <5 <5 <10 <5 <5 6.64 <5 <15 <50 <10 <5 <5 MW-105S 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 8 <5 <15 <50 <10 <5 <5 <5 MW-105S 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 5.8 <5 <15 <50 <10 <5 <5 <5 MW-105S 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 7.7 <5 <15 <50 <10 <5 <5 <5 MW-105S 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 7.4 <5 <15 <50 <10 <5 <5 <5 MW-105S 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 5 <5 <8 <50 <5 <5 <5 <4 MW-105S 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 1.1 <1 <10 <1 <5 2.7 <1 <1 <5 <1 <4 MW-105S 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 1.5 <1 <1 <50 <1 <5 MW-105S 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 1.5 <1 <1 <50 <1 <5 MW-105S 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U 1.1 U U U U U MW-105S 22-Sep-09 U U U U U U U U U U U U U U U U U U U 1.1 U U U U 2.1 U U U U U MW-105S 23-Mar-10 U U U U U U U U U U U U U U U U U U U 0.6 U U U U 2.5 U U U U U MW-105S 21-Sep-10 MW-105S 23-Mar-11 MW-105S 26-Sep-11 MW-105S 27-Mar-12 MW-105S 18-Sep-12 MW-105S 13-Mar-13 MW-105S 24-Sep-13 U U U U U U U U U U U 1.2 U U 0.9 U U U U 1.7 U U U U 2.5 U U U U U MW-105S 25-Mar-14 U U U U U U U U U U U 1.00 U U 1.00i U U U U 1.40 U U U U 2.30 U U U U U MW-105S 27-May-15 U U U U U U U U U U U U U U U U U 0.80J U U U U 1.10 U U U U U MW-105S 29-Sep-15 U U U U U U U U U U U U U U U U U U U 0.501 U U U U 0.801 U U U U U MW-105S 15-Mar-16 U U U U U U U U U U U U U U U U U U U 0.40J U U U U 0.80J U U U U U MW-105S 27-Sep-16 U U U U U U U U U U U U U U U U U U U 0.40J U U U U 0.60J U U U U U MW-105S 22-Mar-17 U U U U U U U U U U U U U U U U U U U 0.40J U U U U 0.60J U U U U U MW-105S 28-Sep-17 U U U U U U U U U U U U U U U U U U U 0.40J U U U U 0.70J U U U U U MW-105S 14-Mar-18 U U U U U U U U U U U U U U U U U U U 0.30J U U U U 0.60J U U U U U U U MW-105S 20-Sep-18 1 U U U U U U U U U U U U I U I U U I U I U U U U 1 0.45 1 U U U U 0.60J U U Jul U U U U Page 36 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill O . E U) N Na E OOO CO d m N E E m E In y E 6 5 m N a) :2OsL O m O F w �O OO O d RN O CL O :E U C R N E O 4 0 OOC O N a E N C OO N C CI) N C a NC t r CO d s EO G CN a) O O Cd C O 0 N CN s a) O 0 c L O V U C t NO VO � c cc Q. O CO O. VE N QCO. O O ON VO M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 (1) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 (I)l 20 200 6 NE 1000 6 0.4 350 70 100 0.6 0.4 MW-106S 22-Mar-02 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 16-Sep-02 <50 <50 <50 <5 <5 <5 <5 <10 <50 <5 <5 <5 <5 <5 <10 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 13-Mar-03 <50 <100 <50 <50 <10 <5 <5 <5 <5 <10 <50 <5 <5 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 17-Oct-03 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 31-Mar-04 <25 <20 <10 <10 <10 <1 <1 <1 <1 <1 <25 <1 <1 <1 <1 <1 <1 <100 <1 <5 <1 <1 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <1 MW-106S 24-Sep-04 <50 <50 <50 <5 <5 <5 <5 <10 <5 <5 <5 <10 <5 <10 <5 <25 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 15-Mar-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 20-Sep-05 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 23-Mar-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 26-Sep-06 <100 <100 <100 <200 <10 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 <10 <5 <5 <5 <100 <5 <5 <5 <5 <5 <5 <5 <5 MW-106S 21-Mar-07 <100 <50 <50 <200 <10 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <20 <3 <13 <3 <10 <5 <5 <3 <100 <5 <5 <3 <5 <5 <5 <3 <3 MW-106S 11-Sep-07 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <1 <1 <1 <10 <5 <5 4.5 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-106S 19-Mar-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-106S 23-Sep-08 <100 <50 <50 <200 <10 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <20 <3 <13 <1 <10 <5 <5 <1 <100 <5 <5 <1 <5 <5 <5 <1 <1 MW-106S 18-Mar-09 1.7 U U U U U U U U U 2.3 U U U U U 0.3 U U U U U U U U U U U U U U U U MW-106S 22-Sep-09 U U U U U 0.3 U U U U 1.1 U U 1 0.4 U U U U U U U U U 3.4 U 0.3 0.8 U 0.9 U U U MW-106S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 21-Sep-10 U U U U U 0.4 U U U U U U U 0.7 0.8 U U U U U U U U U 2 U U 0.9 U U 1.1 U U U MW-106S 23-Mar-11 U U U U U U U U U U U U U U U U 4.3** U U U U U U U U U U U U U U U U U MW-106S 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U MW-106S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 28-May-15 U U U U U U U U U U U U U 0.30J U U U U U U U U U U 0.70J U U U U U U U U U MW-106S 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 28-Sep-16 U U U U U U U U U U U U U 2.00J U U U U U U U U U U 3.50 U U 0.50J U U 0.60J U U U MW-106S 23-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 27-Sep-17 U U U U U U U U U U U U U 2.20J U U U U U U U U U U 3.80 U U 0.50J U U 0.50J U U U MW-106S 15-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 24-Sep-18 9.62J U U U U U U U U U 3.43J U U U U U U U U U U U U U U U U U U U U U U U Page 37 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill �'�, O ❑°f:6 Q. £ M n M O L U ❑ N N CQO N O L U ❑ d d O 0 0 d L M 1° = KC N W d cCo RU C X 2 N l0 E O 'O 2 O`O d A M Gl 'O > M > d O = � d a N Q ccOCI! Z Q V) d LL O d O N N N o = U = H N= r= = d °°° R0 L HH = r N N 2 O d 6RC L E 3 2 C Q t= O°. O Ft A N = N p U , d NQ NT d Xw _^r0 R+7 U). N 4 X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (I) 100 (I) 6 NE 70 1 (I) 0.2 0.7 600 70 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 500 500 MW-106S 22-Mar-02 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-106S 16-Sep-02 <5 <5 <5 <5 <5 <50 <10 <100 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-106S 13-Mar-03 <5 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <50 <10 <150 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-106S 17-Oct-03 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-106S 31-Mar-04 <1 <1 <1 <1 <1 <10 <1 <5 <10 <50 <20 <2.5 <5 <5 <5 <20 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <1 <5 <5 MW-106S 24-Sep-04 <5 <5 <5 <5 <5 <50 <10 <5 <50 <5 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 MW-106S 15-Mar-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-106S 20-Sep-05 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-106S 23-Mar-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-106S 26-Sep-06 <15 <5 <10 <10 <5 <10 <10 <50 <10 <100 <100 <10 <30 <100 <10 <150 <10 <5 <5 <5 <5 <10 <5 <5 <5 <5 <15 <50 <10 <5 <5 <5 MW-106S 21-Mar-07 <15 <5 <5 <5 <5 <10 <10 <50 <10 <100 <100 <5 <30 <100 <10 <150 <10 <5 <5 <3 <5 <10 <5 <5 <3 <5 <8 <50 <5 <5 <5 <4 MW-106S 11-Sep-07 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <1 <1 <1 <10 <1 <5 <1 <1 <1 <5 1 <4 MW-106S 19-Mar-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-106S 23-Sep-08 <15 <5 <1 <1 <1 <10 <10 <50 <10 <100 <100 <1 <30 <100 <10 <150 <1 <5 <3 <1 <1 <10 <1 <1 <1 <1 <1 <50 <1 <5 MW-106S 18-Mar-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 22-Sep-09 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.9 U MW-106S 23-Mar-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1.1 U MW-106S 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 18-Sep-12 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 25-Mar-14 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 28-May-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 30-Sep-15 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 16-Mar-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 28-Sep-16 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 23-Mar-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 27-Sep-17 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 15-Mar-18 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-106S 24-Sep-18 1 U U U U 5.8 U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 38 of 39 Table 2 Historical Assessment Monitoring Results - VOCs Wilders Grove Landfill Notes: All units are in micrograms per liter (Ng/L). ^ Damaged well; Did Not Sample (DNS) ^^ Retested data from 5/26/2000 < #: Indicates the analyte was analyzed for, but not detected at the associated limit. NA: Not analyzed for. NE: No standard established. J: Estimated value U: Not detected NC 2L Groundwater Protection Standards, effective April 2013 (1) - Interim Maximum Allowable Concentrations ** Suspected chloromethane contamination during analysis Bold concentrations exceed the NC 2L Groundwater Protection Standards. MW-10 was damaged beyond repair by operations equipment in 2011. URS is not responsible for data generated or tabulated prior to September 2013. Page 39 of 39 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E y " Q = ¢ 01 c CO .. o L E m c c E 2 0 L L O E o m E 2 0 E °° c £ O E ° m Y ? a O « m' a m o a u v o m S F a o d $ c O O � G E ° o L cl c % 0 O r; c E o = O E o a G o 0 o r n o G N 10 .. E o o L o c s m E O O �_ G m d a o L U 'o m d a o L U 'o d n ° t Y O v l .r. o L V o £ 0 L V 0 ` 0 2 "'- m V c : o u 'p c ? n Y 0 c o. t H p "' w $ o o u - c c K ° G "c .5 L w a °c N = r r E 9 o — = � °' d T r m o a ). £ y "c m �' N m o `o " m o `o ° f y G d ~ ' o f m t 'C m t 'C i o L .3 c E o O `o R H o •� ci ^1 Q C > t1 C '> N N X INC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-201S 9/22/2009 U U U U U U U U 0.2 U U U U U U U U U U 0.4 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 12/17/2009 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/22/2010 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/2112010 U U U U U U U U U U U U U U U U U U U 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/23/2011 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/2612011 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/28/2012 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/1912012 U U U I U I U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/13/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/2512013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U I U U U U U I U U U U U U U U U U U U U MW-201S 3/25/2014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 5/2812015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/30/2015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/1612016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/29/2016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/2312017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 9/29/2017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-201S 3/1512018 U U U U U U U U U U U U U I U U U U U I U I U U U U U U U U U U U U I U U U U U U U U U U U U U U U MW-201S 9/25/2018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 9/22/2009 U U U U U U U 1.4 U U U U U U U U U U U U U 0.2 U 0.2 U U U U U U U U U U U U 0.2 U U U 0.6 U U U U U MW-202S 12/17/2009 U U U U U U U U U U U U U U I U U U U U U U U U U U U U U U U U U U U U U 0.2 U U U 0.3 U U U U U MW-202S 3/22/2010 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 9/21/2010 U U U U U U U 2.6 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U MW-202S 3/2312011 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 9/26/2011 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 3/3812012 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 9/1912012 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 3/13/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 6/2612013 U U U U U U U U U U U U U U U U U U U U U U U 0.3J U U I U U U U U U U U U U U U U U U U U U U U MW-202S 9/25/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U I U U U U U I U U U U U U U U U U MW-202S 12/31/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 3/25/2014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 6/2612014 U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U U U U MW-202S 5/28/2015 U U U U U U U U U U U U I U U U U U U U U U U U 0.40J U U U U U U U U U U U U 0.20J U U U 0.30J U U U U U MW-202S 9/3012015 1 U U U U U U U U U U U U U I U U U U U U U U U U 0.40J U U U U U U U U U U U U U U U U 0.30J U U U U U MW-202S 12/10/2015 U U U U U U U U U U U U U U U U U U U U U U U 0.60J U U U U U U U U U U U U 0.20J U U U 0.40J U U U U U MW-202S 3/1612016 U U U I U I U U U U U U U U U U U U U I U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 6/22/2016 U U U U U U U U U U U U 0.30J U U U U U U U U 0.30J U 1.20J U U U U U U U I U U U U U 0.501 U U U 0.70J U U U U U MW-202S 9/2912016 U U U U U U U U U U U U U U U U U U U U U 0.301 U 1.60J U U U U U U U U U U U U 0.60J U U U 0.801 U U U U U MW-202S 12/21/2016 U U U U U U U U U U U U U U U U U U U U U 0.20J U 1.10J U U U U U U U U U U U U U U U U 0.60J U U U U U MW-202S 3/2312017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 6/27/2017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 9/2912017 U U U U U U U U U U U U U U U U U U U U U U U 0.30JI U I U I U U U U U U U U U U U U U U U U U U U U MW-202S 3/15/2018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 6/6/2018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-202S 9/25/2018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 1 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E N " Q = Q 01 c CO o L E m c 2 0 L L O E o m 2 0 E m c £ O E m ? a O « m m o a u o m S F a o $ c O O iJ � G V E ° o L U c 0 O r; c E o = O E o a G o o r n O G N .. E o o L G s m E O O L G m d a o L U O m d a o L U O d ° t Y O 4 l .r. o L V O £ 0 L V O ` 0 2 "'- m V c : o u 'p c ? n Y G c n t H p "' w $ o o u _ c c K ° G "c a L W a °c N = N r E 9 O - = � °' d T r m o a ). .t+ y "c m �' N m o `o " F m o `o ° f F y G d ~ ' o f m t 'C F m t 'C F i o L ,O c E o O O R H a o •� F ci ^1 m Q C a t1 C N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-202D 9/22/2009 U U U U U U U 1.4 U U U U 0.2 U U U U U U U U U U 0.5 U U U U U U U U U U U U 1.0 U U U 1.3 U U U U U MW-202D 12/17/2009 U U U U U U U U U U U U U U U U U U U U U 0.4 U 0.5 U U U U U U U U U U U U 1.2 U U U 1.5 U U U U U MW-202D 3/22/2010 U U U U U U U U U U U U U U U U U U U U U 0.6 U 0.9 U U U U U U U U U U U U 1.8 U U U 2.2 U U U U U MW-202D 9/21/2010 U U U U U U U U U U U U U U U U U U U U U 0.7 U 1.4 U U U U U U U U U U U U 2.2 U U U 2.8 U U U U U MW-202D 3/2312011 U U U U U U U U U U U U U U U U U U U U U 0.9 U 2.0 U U U U U U U U U U U U 2.3 U U U 3.1 U U U U U MW-202D 9/26/2011 U U U U U U U U U U U U U U U U U U U U U 0.9 U 2.7 U U U U U U U U U U U U 2.5 U U U 3.6 U U U U U MW-202D 3/2812012 U U U U U U U U U U U U U U U U U U U U U 1.0 U 2.7 U U U U U U U U U U U U 2.8 U U U 3.8 U U U U U MW-202D 9/19/2012 U U U U U U U U U U U U U U U U U U U U U 1.0 U 2.7 U U U U U U U U U U U U 2.6 U U U 3.5 U U U U U MW-202D 3/1312013 U U U U U U U U MW-202D 6/26/2013 U U U U U U U U U U U U U U U U U U U U U 1.2J U U U U U U U U U U U U U U U U U U U U U U U U MW-202D 9/2512013 U U U U U U U U U U U U U U U U U U U U U 0.9 U U U U U U U U U U U U U U 1.4 U U U U U U U U U MW-202D 12/31/2013 U U U U U U U U U U U U U U U U U U U U U 1.01 U 1.11 U U U U U U U U U U U U 2.2 U U U 1.6 U U U U U MW-202D 3/2512014 U U U U U U U U U U U U U U U U U U U U U 1.30J U 3.40J U U U U U U U U U U U U 3.50 U U U 4.50 U U U U U MW-202D 6/26/2014 14.60J U U U U U U U U U U U U U U U U U U U U 1.301 U U U U U U U U U 0.80J U U U U U U U U U U U U U U MW-202D 5/2812015 U U U U U U U U U U U U U U U U U U U 0.50J U 1.20J U 1.30J U U U U U U U 1.00 U U U U 2.70 U U U 1.90 U U U U U MW-202D 9/30/2015 U U U U U U U U U U U U U U U U U U U 0.40J U 1.00J U 2.10J U U U U U U U U U U U U 2.40 U U U 2.60 U U U U U MW-202D 12/10/2015 U U 0.30J U U U U U U U U U U U U U U U U 0.50J U 1.40J U 4.30J U U U U U U U 1.00 U U U U 3.10 U U U 4.10 U U U U U MW-202D 3/16/2016 U U 0.30J U U 0.30J U U U U U U U U U U U U U 0.60J U 1.40J U U U U U U U U U 1.20 U U U U 0.30J U U U U U U U U U MW-202D 6/22/2016 U U 0.30J U U U U U U U U U 0.301 U U U U U U 0.60J U 1.30J U U U U U U U U U 1.20 U U U U U U U U U U U U U U MW-202D 9/29/2016 U U 0.30J U U U U U U U U U U U U U U U U 0.60J U 1.40J U U U U U U U U U 1.20 U U U U U U U U U U U U U U MW-202D 12/21/2016 U U 0.40J U U U U U U U U U U U U U U U U 0.70J U 1.50J U U U U U U U U U 1.40 U U U U 1.80 U U U U U U U U U MW-202D 3/23/2017 U U 0.30J U U U U U U U U U U U U U U U U 0.50J U 1.40J U U U U U U U U U 1.40 U U U U 1.20 U U U U U U U U U MW-202D 6/2712017 U U 0.40J U U U U U U U U U U U U U U U U 0.70J U 1.50J U 3.60J U U U U U U U 1.30 U U U U 3.30 U U U 3.4 U U U U U MW-202D 9/29/2017 U U 0.40J U U U U U U U U U U U U U U U U 0.70J U 1.70J U 3.301 U U U U U U U 1.40 U U U U 2.80 U U U 2.90 U U U U U MW-202D 3/1512018 U U 0.30J U U 3.80 U U U U U U U U U U U U U 0.60J U 1.60J U U U U U U U U U 1.60 U U U U U U U U U U U U U U MW-202D 6/6/2018 9.10J U 0.40J U U 1.40J U U U U U U 0.30J U U U U U U 0.90J U 1.901 U U U U U U U U U 2.00 U U U U U U U U U U U U U U MW-202D 9/2512018 U U 0.40J U U 5.14 U U U U U U U U 0.07J U U U U 0.801 U 1.711 0.05J U U 0.121 U U U U U U 1.78 U U U U 0.52 U U U U U U U U U Page 2 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E y " Q = ¢ 01 c CO o L E m c 2 0 L L O E o m 2 0 E °° c £ O E ° m ? a O « m' m o a u o m S F a o $ c O O � G E ° o L c1 c 0 O r; c E o = O E o a G o o r n o G N .. E o o L o s m E O O �_ G m d a o L U 'o m d a o L U 'o d ° t Y O v l .r. o L V o £ 0 L V 0 ` 0 2 "'- m V c : o u 'p c ? n Y 0 c o. t H p "' w $ o o u - c c K ° G "c a L w a °c N = r r E 9 o - ° � °' d T r m o a ). £ y "c m �' N m o `o " m o `o ° f y G d ~ ' o f m t 'C m t 'C i o L .3 c E o O `o R H o •� ci ^1 Q C > t1 C '> N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-203S 9/22/2009 1.8 U 0.3 U U U U 2.1 0.2 U 0.6 U U U U U U U 0.5 2.5 U 1.3 U 7.5 0.2 0.2 U U U U U 1.0 U U U U 1.9 U U U 3.8 U U U U U MW-203S 12/17/2009 U U 0.3 U U U U U U U 0.7 U U U U U U U 0.5 2.6 U 1.3 U 7.0 U 0.3 U U U U U 0.9 U U U U 1.7 U U U 3.7 U U U U U MW-203S 3/22/2010 U U 0.7 U U U U U U U 0.8 U U U U U U U 0.5 3.0 U 1.6 U 9.5 0.3 0.3 U U U U U 1.7 U U U U 2.2 U U U 4.7 U U U U U MW-203S 9/21/2010 U U 0.5 U U U U U U U 0.8 U U U U U U U U 2.5 U U U 4.8 U U U U U U U 0.8 U U U U 1.1 U U U 2.3 U U U U U MW-203S 3/2312011 U U 0.3 U U U U U U U 0.6 U U U U U U U U U U 0.5 U 2.8 U U U U U U U U U U U U 0.7 U U U 1.4 U U U U U MW-203S 3/28/2012 U U 0.4 U U U U U U U 0.7 U U U U U U U 0.4 2.3 U 0.7 U 4.0 U U U U U U U 0.9 U U U U 1.0 U U U 2.2 U U U U U MW-203S 9/1912012 U U 0.3 U U U U U U U 0.5 U U U U U U U U 1.4 U 0.3 U 1.7 U U U U U U U U U U U U 0.5 U U U 1.0 U U U U U MW-203S 3/13/2013 U U U U U U U U U U 1 0.4 U U U U U U U U 1.2 U U U 1.3 U U U U U U U U U U U U 0.4 U U U 0.7 U U U U U MW-203S 6/2612013 U U U U U U U U U U 0.4J U U U U U U U U 1.2 U 0.3J U 1.5J U U U U U U U U U U U U 0.4J U U U 0.7J U U U U U MW-203S 9/25/2013 U U U U U U U U U U U U U U U U U U U 0.8 U U U 0.9 U I U U I U I U U I U I U U U U U U U U U 0.3 U U I U U U MW-203S 12/31/2013 U U U U U U U U U U U U U U U U U U U 0.8J U U U 0.81 U U U U U U U U U U U U U U U U 0.51 U U U U U MW-203S 3/25/2014 U U U U U U U U U U 0.40J U U U U U U U U 0.90J U 0.20J U 1.30J U U U U U U U U U U U U 0.20J U U U 0.70J U U U U U MW-203S 6/2612014 U U U U U U U U U U U U U U U U U U U 0.70J U U U 0.50J U U U U U U U U U U U U U U U U 0.30J U U U U U MW-203S 5/28/2015 U U U U U U U U U U U U U U U U U I U I U 0.50J U U U 0.41J U U U U U U U U U U U U U I U U U U U U U U U MW-203S 9/3012015 U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U U U U MW-203S 12/10/2015 U U U U U U U U U U U U U U U U U U U 0.40J U U I U 0.60J U U U U U U U U U U I U U U U U I U U U U U U U MW-203S 3/1612016 U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U U U U U U U U U U U U U U U U U U MW-203S 6/22/2016 U U U U U U U U U U U U 0.30J U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U U U U MW-203S 9/2912016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-203S 12/21/2016 U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U U U U MW-203S 3/22/2017 U U U U U U U U U U U U U U U U U U U U U U U 0.30J U U I U U U I U I U U U U U U U U U U U U U I U U U MW-203S 6/27/2017 U U U U U U U U U U U U U U U I U U I U I U U U U U 10.30JI U I U U U I U U U U U U U I U U U U U U U U U U U MW-203S 9/2912017#UU U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-203S 3/15/2018 U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U MW-203S 6/6/2018 U U U U U U U U U U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U ium MW-203S 9/25/2018 U U U U U U U U U U U U U U U U U U U U U U 0.02J U U U U U U U U U U U U U U U U U U U U U Page 3 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E y " Q = ¢ 01 c CO o L E m c 2 0 L L O E o m 2 0 E °° c £ O E ° m ? a O « m' m o a u o m S F a o $ c O O � G E ° o L c1 c 0 O r; c E o = O E o a G o o r n o G N .. E o o L o s m E O O �_ G m d a o L U 'o m d a o L U 'o d ° t Y O v l .r. o L V o £ 0 L V 0 ` 0 2 "'- m V c : o u 'p c ? n Y 0 c o. t H p "' w $ o o u - c c K ° G "c a L w a °c N = r r E 9 o - ° � °' d T r m o a ). £ y "c m �' N m o `o " m o `o ° f y G d ~ ' o f m t 'C m t 'C i o L .3 c E o O `o R H o •� ci ^1 Q C > t1 C '> N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-204S 9/22/2009 1.5 U 0.3 U U U U 1.7 U U 0.2 U 0.2 0.2 U U U U U 0.7 U 3.8 U 5.0 0.2 0.2 U U U U U U U U U U 0.5 U U U U U U U U U MW-204S 12/17/2009 U U 0.6 U U U U U U U 0.4 U U U U U U U U 1.1 U 4.7 U 4.4 U 0.3 U U U U U U U U U U 0.6 U U U U U U U U U MW-204S 3/22/2010 U U 0.5 U U U U U U U 0.4 U U U U U U U U 1.0 U 5.0 U 5.5 0.3 0.4 U U U U U U U U U U 0.8 U U U U U U U U U MW-204S 9/21/2010 U U 0.9 U U U U U U U 0.7 U U U U U U U U 2.0 U 7.0 U 6.1 U 0.5 U U U U U U U U U U 0.9 U U U U U U U 0.7 U MW-204S 3/2312011 U U 0.6 U U U U U U U 0.6 U U U U U U U U 1.5 U 5.5 U 3.9 U 0.4 U U U U U U U U U U 0.9 U U U U U U U U U MW-204S 9/26/2011 U U 1.3 U U U U U U U 1.4 U U U U U U U 0.4 1.8 U 6.6 U 4.6 0.4 0.5 U U U U U U U U U U 0.8 U U U 0.4 U U U 0.9 U MW-204S 3/2812012 U U U U U U U U U U U U U U U U U U U 0.8 U 2.2 U 1.1 U U U U U U U U U U U U 0.6 U U U U U U U U U MW-204S 9/19/2012 U U U U U U U U U U U U U U U U U U U U U 2.0 U 0.7 U U U U U U U U U U U U 0.6 U U U U U U U U U MW-204S 3/1312013 U U U U U U U U U U U U U U U U U U U U U 1.5 U 0.5 MW-204S 9/25/2013 U U U U U U U U U U U U U U U U U U U U U 0.6 U U U U U U U U U U U U U U U U U U U U U U U U MW-204S 3/2512014 U U U U U U U U U U U U 0.901 U U U U U U U U 0.601 U 0.30J U U U U U U U U U U U U 0.50J U U U U U U U U U MW-204S 5/28/2015 U U U U 0.30J U U U U U U U 1.60J U U U U U U U U 0.90J U 0.301 U U U U U U U U U U U U 0.40J U U U U U U U U U MW-204S 9/3012015 U U U U 0.60J U U U U U 0.40J U 3.301 U U U U U U U U 0.70.1 U 0.301 U U U U U U U U U U U U 0.50J U U U U U U U U U MW-204S 3/16/2016 U U U U U U U U U U U U 0.901 U U U U U U U U 0.40J U U U U U U U U U U U U U I U I U U U U U U U U U U MW-204S 9/2912016 U U U U U U U U U U U U 1.501 U U U U U U U U 0.60.1 U U U U U U U U U U U U U U 0.50J U U U U U U U U U MW-204S 3/23/2017 U U U U U U U U U U U U 1.40J U U U U U U U U 1.00J U 0.30J U U U U U U U U U U U U 0.60J U U U U U U U U U MW-204S 9/2912017 U U 0.70J U U U U U I U I U 12.20J U I 0.601 U U U U U U 2.7 U 2.10.1 U 1.00J U 0.30J U U U U U U U U U U 0.40J U U U U U U U U U MW-204S 3/15/2018 U U U U U U U U U U U U 0.60J U U U U U U U U 1.40J U 0.30J U U I U U U U U U U U U U 0.60J U U U U U U U U U MW-204S 9/2512018 U U U U U U U U U U U U U U U U U U U U U 0.96.11 0.02J U U 0.08J U U U U U U U U U U U 0.62 U U U U U U U U U MW-205S 9/22/2009 1.4 U U U U U U 1.3 U U U 0.5 U U U U U U U U U 0.4 U 0.3 U U U U U U U U U U U U U U U U U U U U U U MW-205S 12/17/2009 U U U U U U U U U U U 0.5 U U U U U U U 0.4 U 0.3 U U U U U U U U U U U U U U U 1.1 U U U U U U U U MW-205S 3/22/2010 U U U U U U U U U U U U U U U U U U U 0.6 U 0.2 U U U U U U I U U U I U U U U I U U U U U U U U U U U MW-205S 9/2112010 U U U U U U U U U U U 0.7 U U U U U U U U U 0.4 U U U U U U U U U U I U U U U U U U U U U U U 2.0 U MW-205S 3/23/2011 U U U U U U U U U U U U U U U U U U U U U 0.3 U U U U U U U U U U U U U U I U U U U U U U U U U MW-205S 9/2612011 U U U U U U U U U U U 0.6 U U U U U U U 3.0 U 0.3 U 0.3 U U U U U U U U U U U U U U U U U U U U U U MW-205S 3/28/2012 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 9/1912012 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 3/13/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 6/2612013 U U 1.2 U U U U U U U 8.6 1.5J U U U U U U 0.8J 5.5 U 0.6J U U U U U U U U U U U U U U U 0.8J U U U U U U U U MW-205S 9/25/2013 U U U U U U U U U U U U U U U U U I U I U 0.4 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 12/31/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 3/25/2014 U U 1.50 U U U U U U U 4.50 1.30J U U U U U U 1.201 8.10 U 0.60J U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 6/2612014 U U 1.30 U U U U U U U 4.20 1.20J U U U U U U 1.201 8.40 U 0.60.1 U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 5/28/2015 U U 1.20 U U U U U 0.90J U 3.50 U U U U U U U 1.101 8.20 U 0.60J U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 9/3012015 U U U U U U U U U U U U U U U U U U U 1.5 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 12/10/2015 U U U U U U U U I U I U 10.50J U U U U U U U U 1.40 U I U I U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 3/16/2016 U U 1.4 U U U U U U U 3.90 U U U U U U U 1.201 9.10 U 0.70.11 U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 6/22/2016 U U 0.30J U U U U U U U 1.20J U 0.30J U U U U U 0.40J 3.00 U U U U U U U U U U U U I U U U U I U U U U U U U U U U MW-205S 9/2912016 U U U U U U U U U U 0.30J U U U U U U I U I U 1.10 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 12/21/2016 U U U U U U U U U U 0.30J U U U U U U U U 1.00 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 3/2312017 U U U U U U U U U U U U U U U U U U U 0.801 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 6/27/2017 U U U U U U U U U U 0.501 U U U U U U U U 1.2 U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 9/2912017 U U U U U U U U U U 0.5MUU U U U U U U 1.30 U U U U U U U U U U U U U U U U 0.50J U U U U U U U U U MW-205S 3/15/2018 U U U U U U U U U U UU U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 6/6/2018 U U U U U U U U U U UU U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-205S 9/25/2018 U U U U U U U U U U UU U U U U U 0.52J U U 0.03J U U U U U 16.30 U U U U U U U U U U U U U U U U U U Page 4 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E y " Q n ¢ 01 c CO e L E m c 2 0 L L O E o m 2 0 E °° c £ O E ° m ? a O « m' m o a u o m S F a o $ c O O it � G E o o L cl c 0 O r; c E o = O E o a G o o r n o G N .. E o o L o s m E O O �_ G m d a o L U 'o m d a o L U 'o d ° t Y O v l .r. $ L V o £ e L V 0 ` o 2 "'- m V c : o u 'p c ? n Y 0 c o. t H p "' w $ o o u - c c K ° G "c a L w a °c N = r r E 9 o - = ; °' d T r m o a ). £ y "c m �' N m o 5 " m o `o ° f y G d ~ ' o f m t 'C m t 'C i o L .3 c E o O `o R H g •� ci ^1 Q C > t1 C '> N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-205D 9/22/2009 1.6 U 0.2 U U U U 1.8 U U 0.3 U 0.2 U U U U U U 0.4 U 1.0 U 2.2 U U U U U U U U U U U U U U U U 0.3 U U U 0.6 U MW-205D 12/17/2009 U U 0.4 U U U U U U U 1.2 U U U U U U U U 2.2 U 2.9 0.6 6.5 0.4 0.4 U U U U U U U U U U 0.4 U U U 1.3 U U U 1.7 U MW-205D 3/22/2010 U U 0.4 U U U U U U U 1.2 U U U U U U U U 2.3 U 3.1 0.3 6.9 0.4 0.4 U U U U U U U U U U 0.4 U U U 1.4 U U U 1.9 U MW-205D 9/21/2010 U U 0.4 U U U U U U U 1.2 U U U U U U U U 2.4 U 3.0 0.3 6.7 0.5 0.4 U U U U U U U U U U 0.3 U U U 1.3 U U U 2.0 U MW-205D 3/2312011 U U 0.5 U U U U U U U 1.1 U U U U U U U U 1.9 U 2.6 U 5.5 0.3 0.3 U U U U U U U U U U 0.3 U U U 1.1 U U U 1.3 U MW-205D 9/26/2011 U U 0.4 U U U U U U U 1.3 U U U U U U U U 2.1 U 2.8 0.3 6.0 0.4 0.4 U U U U U U U U U U 0.4 U U U 1.2 U U U 1.7 U MW-205D 3/2812012 U U 0.4 U U U U U U U 1.2 U U U U U U U U 2.3 U 2.3 U 5.2 0.4 0.4 U U U U U U U U U U 0.3 U U U 1.1 U U U 1.2 U MW-205D 9/19/2012 U U U U U U U U U U 1.6 U U U U U U U U 3.0 U 2.4 0.4 5.3 0.4 0.4 U U U U U U U U U U 0.2 U U U 1.1 U U U 1.6 U MW-205D 3/13/2013 U U 0.4 U U U U U U U 1.7 U U U U U U U U 3.6 U 2.2 U 5.4 0.3 0.3 U U U U U U U U U U U U U U 1.0 U U U 1.2 U MW-205D 6/26/2013 U U 0.4 J U U U U U U U 1.7 J U U U U U U U U 3.2 U 2.3 J U 5.9 0.3 J 0.3 J U U U U U U U U U U U U U U 1.1 U U U 1.5 U MW-205D 9/2512013 U U 0.4 U U U U U U U 1.7 U U U U U U U U 3.3 U 2.1 U 5.4 0.3 0.3 U U U U U U U U U U 0.2 U U U 1.0 U U U 1.9 U MW-205D 12/31/2013 U U 0.4 U U 0.4J U U U U 1.8J U U U U U U U U 3.3 U 2.2J U 6.1 U 0.4J U 0.41 U U U U U U U U U U U U 1.0 U U U 1.5 U MW-205D 3/2512014 U U 0.40J U U U U U U U 1.70J U U U U U U U U 3.20 U 2.301 0.30J 5.40 0.40J U U U U U U U U U U U U U U U 1.10 U U U 0.901 U MW-205D 6/26/2014 15.10J U U U U 0.70J U U U U 1.60J U U U U U U U U 3.00 U 2.10J U U U 0.30J U U U U U U U U U U U U U U U U U U U U MW-205D 5/2812015 U U 0.30J U U U U U U U 1.20J U U U U U U U U 2.50 U 1.501 U 2.70J U 0.30J U U U U U U U U U U U U U U 0.50J U U U U U MW-205D 9/30/2015 U U 0.40J U U U U U U U 1.70J U U U U U U U 0.40J 3.60 U 2.00J U 4.50J 0.30J 0.40J U U U U U U U U U U 0.20J U U U 0.80J U U U 0.901 U MW-205D 12/10/2015 U U 0.40J U U U U U U U 1.90J U U U U U U U 0.401 3.70 U 2.301 0.30J 5.90 0.40J 0.40J U U U U U U U U U U 0.30J U U U 0.901 U U U 1.00 U MW-205D 3/16/2016 U U 0.30J U U U U U U U 1.10J U U U U U U U U U U 1.50J U 3.20J U 0.30J U U U U U U U U U U U U U U U U U U U U MW-205D 6/22/2016 12.001 U 0.40J U U U U U U U 1.80J U 0.301 U U U U U U 3.20 U 2.101 U U U 0.30J U U U U U U U U U U U U U U U U U U U U MW-205D 9/29/2016 U U U U U U U U U U 0.60J U U U U U U U U 1.30 U 0.60J U 0.60J U U U U U U U U U U U U U U U U U U U U U U MW-205D 12/21/2016 U U U U I U U U U U U U U U U U U U U U U U U U 0.30J U I U U U U U U U U U U U U U U U U U U U U U MW-205D 3/23/2017 U U U U U U U U U U U U U U U I U I U I U I U U U U U U U U U I U I U U U U U U U U I U U U U U U U U U U MW-205D 6/2712017 U U U U U U U U U U 0.60J U U U U U U U U 1.2 U 0.70J U 1.601 U U U U U U U U U U U U U U U U 0.30J U U U U U MW-205D 9/29/2017 U U 0.30J U U U U U U U 1.20J U U U U U U U U 2.0 U 1.401 U 3.20J U 0.30J U U U U U U U U U U U U U U 0.501 U U U 0.701 U MW-205D 3/1512018 U U 0.30J U U U U U U U 1.50J U U U U U U U U 2.60 U 1.601 U 4.00J U U U U U U U U U U U U U U U U 0.70J U U U 0.70J U MW-205D 6/6/2018 U U U U U U U U U U 1.60J U U U U U U U U 2.90 U 1.701 U 4.00J U U U U U U U U U U U U U U U U 0.70J U U U U U MW-205D 9/2512018 U U U U U U U U U U 0.68J U U U U U U U U 1.58 U 1.061 0.15J 2.14' U 0.70 U U 10.70 U U U U U U U U 10.14JI U I U I U 0.37J U U U 0.16.1 U Page 5 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f '1 Do p E y " Q = ¢ 01 c CO o L E m c 2 0 L L O O m 2 0 E °° c £ O E ° ? a O « m' m o a u o m S F a U $ c O O � G E ° o L c1 c 0 O c E o = O E o o r n o G .. E o o L o s m E O O �_ m d a o L U 'o m d a o L U 'o �H d ° t Y O v .r. o L V o £ 0 L V 0 cL ` 0 2 �O c : o u 'p c ? n Y 0 c o. t H p a 'O o o u - c c K ° G "c a L w a °c N = r r E 9 o = � °' d T r o a ). £ a "c m �' N m o `o " m o `o ° f y G ~ ' o f m t 'C m t 'C i o L .3 c E o O `o ._ f o •� Q C > t1 C '> N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-206D 9/22/2009 2.4 U U U 6.4 U U 2.0 U U U U 23.5 0.4 1.7 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 12/17/2009 U U U U U U U U U U U U U U U U U U U 1.0 U 0.8 U 0.3 U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/22/2010 U U U U U U U U U U U U U U U U U U U 0.6 U 0.3 U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/21/2010 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/2312011 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/26/2011 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/2812012 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/19/2012 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/1312013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 6/27/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/2512013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 12/31/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/2512014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 6/26/2014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 5/2812015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/30/2015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 12/10/2015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/16/2016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 6/22/2016 U U U U U U U U U U U U 0.301 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/29/2016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 12/21/2016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/23/2017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 6/2712017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/29/2017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 3/1512018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 1 6/6/2018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-206D 9/2512018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 6 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E y " Q = ¢ 01 c CO o L E m c 2 0 L L O E o m 2 0 E °° c £ O E ° m ? a O « m' m o a u o m S F a o $ c O O i1 � G E ° o L c1 c 0 O r; c E o = O E o a G o o r n o G N .. E o o L o s m E O O �_ G m d a o L U 'o m d a o L U 'o d ° t Y O v l .r. o L V o £ 0 L V 0 ` 0 2 "'- m V c : o u 'p c ? n Y 0 c o. t H p "' w $ o o u - c c K ° G "c a L w a °c N = r r E 9 o - = � °' d T r m o a ). £ y "c m �' N m o `o " m o `o ° f y G d ~ ' o f m t 'C m t 'C i o L .3 c E o O `o R H o •� ci ^1 Q C > t1 C '> N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-207S 2/1012012 U U U U U U U U U U U U U U U U U U U U U 1.2 U 4.7 U U U U U U U U U U U U 1.4 U U U 2.7 U U U U U MW-207S 3/28/2012 U U U U U U U U U U U U U U U U U U U U U 0.9 U 3.9 U U U U U U U U U U U U 1.6 U U U 2.8 U U U U U MW-207S 9/1912012 U U U U U U U U U U U U U U U U U U U U U 1.0 U 4.0 U U U U U U U U U U U U 1.5 U U U 2.7 U U U U U MW-207S 3/13/2013 U U U U U U U U U U U U U U U U U U U U U 0.3 U 1.1 U U U U U U U U U U U U U U U U 0.6 U U U U U MW-207S 6/2712013 U U U U U U U U U U U U U U U U U U U U U 0.6J U 2.3J U U U U U U U U U U U U 1.0 U U U 1.6 U U U U U MW-207S 9/25/2013 U U U U U U U U U U U U U U U U U U U U U 0.6 U 3.1 U U U U U U U U U U U U 1.2 U U U 2.2 U U U U U MW-207S 12/31/2013 U U U U U U U U U U U U U U U U U U U U U 0.6J U 2.5J U U U U U U U U U U U U 1.0 U U U 1.8 U U U U U MW-207S 3/25/2014 U U U U U U U U U U U U U U U U U U U U U 0.30J U 0.70J U U U U U U U U U U U U 0.60J U U U 0.80J U U U U U MW-207S 6/2612014 U U U U U U U U U U U U U U U U U U U U U 0.401 U 1.40JI U U U U U U U U U U U U 0.60J U U U 1.30 U U U U U MW-207S 5/28/2015 U U U U U U U U U U U U U U U U U U U U U 0.30J U 0.80J U U I U I U I U U U I U U U I U U 0.40J U U I U 0.70J U U I U I U U MW-207S 9/3012015 U U U U U U U U U U U U U U U U U U U U U 0.301 U 0.90J U U U U U U U U U U U U 0.30J U U U 0.60J U U U U U MW-207S 12/10/2015 U U U U U U U U U U U U U U U U U U U U U U U 0.60J U U U U U U U U U U U U 0.20J U U U 0.40J U U U U U MW-207S 3/1612016 U U U U U U U U U U U U U U U U U U U U U U U 0.70J U U U U U U U U U U U U 0.30J U U U 0.40J U U U U U MW-207S 6/22/2016 U U U U U U U U U U U U 0.301 U U U U U U U U U U 0.60J U U U U U U U U U U U U 10.30J U U U 0.50J U U U U U MW-207S 9/2912016 U U U U U U U U U U U U U U U U U U U U U U U 0.60J U U U U U U U U U U U U 0.30J U U U 0.50J U U U U U MW-207S 12/21/2016 U U U U U U U U U U U U U U U U U U U U U U U 0.70J U U U U U U U U U U U U 0.30J U U U 0.501 U U U U U MW-207S 3/2312017 U U U U U U U U U U U U U U U U U U U U U U U 0.70J U U U U U U U U U U U U 0.30J U U U 0.50J U U U U U MW-207S 6/27/2017 U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U U U U U U U U 0.201 I U I U U 0.40J U U I U U U MW-207S 9/2912017 U U U U U U U U U U U U U U U U U U U U U U U 0.60J U U U U U U U U U U U U 0.20J U U U 0.50J U U U U U MW-207S 3/15/2018 U U U U U U U U U U U U U I U U U U U U U U U I U 0.60J U I U U U U U U U U U U U 0.20J U U U 0.40J U U U U U MW-207S 6/6/2018 U U U U U U U U U U U U U U U U U U U U U U U 0.50J U U U U U U U U U U U U U U U U 0.40J U U U U U MW-207S 9/25/2018 U U U U U U U U U U U U U U I U U U U U U U U U U U U U U I U U U U I U U U U U 0.19J U U U U U U U U U MW-207D 2/1012012 U U U U U U U U U U U U U U U U U U U 0.8 U 1.1 U 5.1 U U U U U U U 1.6 U U U U 0.9 U U U 2.3 U U U U U MW-207D 3/28/2012 U U 0.5 U U U U U U U U U U U U U U U U U U 0.3 U 1.2 U U U U U U U U U U U U 0.5 U U U 0.7 U U U U U MW-207D 9/1912012 U U U U U U U U U U U U U U U U U U U U U 0.3 U 0.9 U U U U U U U U U U U U 0.4 U U U 0.5 U U U U U MW-207D 3/13/2013 U U U U U U U U U U U U U U U U U U U U U 0.3 U 1.1 U U U U U U U U U U U U 0.5 U U U 0.6 U U U U U MW-207D 6/2712013 U U U U U U U U U U U U U U U U U U U U U 0.4J U 1.5J U U U U U U U U U U U U 0.5J U U U 0.7J U U U U U MW-207D 9/25/2013 U U U U U U U U U U U U U U U U U U U U U 0.4 U 1.7 U U U U U U U U U U U U 0.7 U U U 0.9 U U U U U MW-207D 12/31/2013 U U U U U U U U U U U U U U U U U U U U U 0.5J U 2.2J U U U U U U U U U U U U 0.8J U U U 1.2 U U U U U MW-207D 3/25/2014 U U U U U U U U I U U U U U U U U U U U U U 0.40J U 1.70J U U U U U U U U U U U U 0.50J U U U 1.00 U I U U U U MW-207D 6/2612014 U U U U U U U U U U U U U U U U U U U U U 0.60.11 U 2.70J U U U U U U U U U U U U 0.801 U U U 1.70 U U U U U MW-207D 5/28/2015 U U U I U I U U U U U U U U U U U U U U U U U 0.40J U 11.60J U U U U I U U U I U U U U U 0.40J U U U 0.80J U U U U U MW-207D 9/3012015 U U U U U U U U U U U U U U U U U U U U U 0.601 U 2.00J U U U U U U U U U U U U 0.60J U U U 1.10 U U U U U MW-207D 12/10/2015 U U U U U U U U U U U U U U U U U U U U U 0.70J U 2.60J U U U U U U U U U U U U 0.70J U U U 1.20 U U U U U MW-207D 3/1612016 U U U U U U U U U U U U U U U U U U U U U 0.401 U 1.90J U U U U U U U U U U U U 0'20J U U U 0.901 U U U U U MW-207D 6/22/2016 U U U U U U U U U U U U 0.30J U U U U U U U U 0.50J U 2.30J U U U U U U U U U U U U 0.60J U U U 1.00 U U U U I U MW-207D 9/2912016 U U U U U U U U U U U U U U U U U U U U U 0.601 U 3.00J U U U U U U U U U U U U 0.801 U U U 1.40 U U U U U MW-207D 12/21/2016 U U U U U U U U U U U U U U U U U U U U U U U 0.40J U U U U U U U U U U U U U U U U 0.30J U U U U U MW-207D 3/2312017 U U U U U U U U U U U U U U U U U U U U U U U 0.50J U U U U U U U U U U U U U U U U 0.30JI U U U U U MW-207D 6/27/2017 U U U U U U U U U U U U U U U U U U U U U 0.50JI U 1.80J U U U U U U U U U U U U 0.30J U U I U 1.0 1 U I U I U U U MW-207D 9/2912017 U U U U U U U U U U U U U U U U U U U U U 0.701 U 2.00J U U U U U U U U U U U U U U U U 1.40 U U U 1.00 U MW-207D 3/15/2018 U U U U U U U U U U U U U U U U U U U U U 0.801 U 0.701 U U U U U U U U U U U U U U U U 0.50J U U U U U MW-207D 6/6/2018 U U U U U U U U U U U U U U U U U U U U U 0.70. U 0.501 U U U U U U U U U U U U U U U U U U U U U U MW-207D 9/25/2018 U U U U U U U U U U U U U U U U U U U U U 0.70. 0.03J 0.45J U 0.10J U U U U U U U U U U U U U U U U U U U U Page 7 of 8 Table 3 Historical Corrective Action Monitoring Results - VOCs Wilders Grove Landfill 3 !' p f Do p E rn " Q = ¢ 01 c CO .. o L E m c c E 2 0 L L O o m E 2 0 E °° c £ O E ° Y ? a O « m' a m o a u v o m S F a o a, $ c O O � G E ° o L cl c % 0 O c E o = E E a o 0 o r n o G 10 .. E o o L o c s m E O O �_ Gci m d a o L U 'o m d a o L U 'o d n ° t Y O v E L V o £ o L V 0 ` 0 2 m c : o u 'p c ? n Y 0 c o. t Y p w o o u - c c K ° G "c .5 L w a E N = r r E 9 o = � °' d T r o a T £ y "c m �' N m E `o " m E `o ° f y G ~ a, ' o f m t 'C ~ m t 'C 1- i o L .3 c E o O `o R o •� I` N Q C > t1 C '> N N X NC 2L Standard " 6000 NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 0.4 0.04 0.02 70 (I) 20 6 NE 6 0.4 70 100 0.6 0.4 0.4 3.0 600 40 (I) NE 5 100 (I) 70 1 (I) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-208S 2/1012012 U U U U 0.3 U U U U U 0.5 0.8 0.5 U U U U U U 1.7 U 1.2 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 3/28/2012 U U U U U U U U U U U U U U U U U U U 3.9 U 1.5 U U U U U U U U U U U 0.3 U U U U U U U U U U U U MW-208S 9/1912012 U U U U U U U U U U 2.2 1.3 U U U U U U 0.8 6.4 U 1.8 0.4 0.3 0.3 U U U U U U U U U U U U U U U U U U U U U MW-208S 3/13/2013 U U U U U U U U U U 0.5 U U U U U U U U 2.6 U 1.6 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 6/2712013 U U U U U U U U U U U U U U U U U U U U U 0.2J U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 9/25/2013 U U U U U U U U U U 1.7 1.1 U U U U U U 0.6 4.5 U 1.5 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 12/31/2013 U U U U U U U U U U 2.3J U U U U U U U 0.8J 5.8 U 1.4J U 0.3J U U U U U U U U U U U U U U U U U U U U U U MW-208S 3/25/2014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 6/2612014 U U U U U U U U U U 0.60J U U U U U U U U 1.70 U U 0.60J U U U U U U U U U U U U U U U U U U U U U U U MW-208S 5/28/2015 U U U U U U U U UL U U U U U U U U U U U U U U U U U U U I U U U U U U I U U U U U U U U U U U U MW-208S 9/3012015 U U U U U U U U U U 2.40J U U U U U U U 0.701 4.9 U 1.001 U U U U U U U U U U U U U U U U U U U U I U I U U U MW-208S 12/10/2015 U U U U U U U U UL U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 3/1612016 U U U U U U U U U U 0.801 U U U U U U U U 1.70 U 0.501 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 6/22/2016 U U U U U U U U U U 1.50J U 0.40J U U U U U 0.40J 3.00 U I 0.80J U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 9/2912016 U U U U U U U U U U 2.00J U U U U U U U 0.501 3.90 U 0.801 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 12/21/2016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 3/2312017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 6/27/2017 U U U U U U U U U U 1.10J U U U U U U U U 2.2 U 0.50J U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 9/2912017 U U U U U U U U U U 2.10J U U U U U U U 0.601 4.10 U 0.601 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 4/11/2018 U U U U U U U U U U U U U U U U U U U 0.50J U 0.20J U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 6/6/2018 U U U U U U U U U U LOW U U U U U U U U 2.60 U 0.501 U U U U U U U U U U U U U U U U U U U U U U U U MW-208S 9/25/2018 U U U U U U U U U U U U U U U U U U U U U 0.26J 0.02J U U U U U 4.25 U U U U U U U U U U U U U U U U U U MW-208D 2/1012012 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 3/28/2012 U U U U U U U U U U U U U U U U U U U 0.5 U 0.3 U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 9/1912012 U U U U U U U U U U U U U U U U U U U 0.5 U 0.4 U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 3/13/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 6/2712013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 9/25/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 12/31/2013 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 3/25/2014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 6/2612014 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 5/28/2015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 9/3012015 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 12/10/2015 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 3/1612016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 6/22/2016 U U U U U U U U U U U U 0.30J U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 9/2912016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 12/21/2016 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.251 I U U U U U U MW-208D 3/2312017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 6/27/2017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 9/2912017 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 4/11/2018 U U U U U U U 2.50J U U U U U aff U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 6/6/2018 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-208D 9/25/2018 U U U U U U U U U U U U U U U U U U U U U U U U 4.80 U U U U U U U U U U U U U U U U U U Notes: All units are in micrograms per liter (pg/L) (pans per billion). J: Estimated value U: Not detected "NC 2L Groundwater Protection Standards, affective April 2013 Shaded and bolded concentrations exceed the NC 2L Groundwater Protection Standards. URS is not responsible for data generated or tabulated prior to September 2013. Table 4a Historical Assessment Monitoring Results - SVOCs Wilder's Grove Landfill Monitoring Well Number Detected Constituent NC 2L Standard Recorded Concentration` Recorded Concentration* Recorded Concentration* Recorded Concentration* Recorded Concentration* Recorded Concentration* Recorded Concentration* 3/18/2009 3/23/2010 3/23/2011 3/27/2012 3/13/2013 9/24/2013 3/25/2014 MW-1 None MW-2 None MW-3 Di-N-Octyl Phthalate 100 µg/L MW-4 Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 11.70 10.80 10.13 MW-6 Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 96.00 MW-8 None MW-9 None MW-10 4-Chloroaniline NE 6.55 MW-11 None MW-12 Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 19.10 MW-100S None MW-100D Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 22.70 15.60 20.80 Di-N-Octyl Phthalate 100 µg/L MW-101 D Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 14.10 24.20 249.00 MW-102S None MW-103S None MW-104S None MW-104D Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 61.00 17.00 34.60 297.00 18.60 Di-N-Octyl Phthalate 100 µg/L MW-105S Bis-(2- Ethyl hexyl) Phthalate 3 pg/L 13.10J MW-106S None Notes: -NC 2L Standards: NC 2L Groundwater Protection Standards, effective April 2013 -*Concentrations in parts per billion (ppb). -NE: No standard established -J: Estimated value -U: Analyte was below method detection limit - --": Indicates well was not sampled Indicates well was not sampled. MW-10 was damaged beyond repair by operations equipment in 2011. MW-105S went dry before samples could be collected for 8270 analysis. -URS is not responsible for data generated or tabulated prior to September 2013. Page 1 of 2 Table 4a Historical Assessment Monitoring Results - SVOCs Wilder's Grove Landfill Monitoring Well Number Detected Constituent NC 2L Standard Recorded Concentration` Recorded Concentration* Recorded Concentration` Recorded Concentration* Recorded Concentration* Recorded Concentration* Recorded Concentration* Recorded Concentration* 5/27/15-5/28/15 9/29/15-09/30/15 3/15/16-03/16/16 9127116-09126116 3/22/17-3/23/17 9/27/17-9/29/17 3114118-3115118 9/20/18-9124118 MW-1 None -- MW-2 None -- MW-3 Di-N-Octyl Phthalate 100 µg/L 4.30 J - MW-4 Bis-(2-Ethylhexyl) Phthalate 3 pg/L U U -- MW-6 Bis-(2-Ethylhexyl) Phthalate 3 pg/L U U -- MW-8 None -- MW-9 None -- MW-10 4-Chloroaniline NE -- -- -- -- MW-11 None -- MW-12 Bis-(2- Ethyl hexyl) Phthalate 3 pg/L U -- MW-100S None -- MW-100D Bis-(2- Ethyl hexyl) Phthalate 3 pg/L U U -- Di-N-Octyl Phthalate 100 µg/L 7.80 J MW-101 D Bis-(2- Ethyl hexyl) Phthalate 3 pg/L U U MW-102S None MW-103S None MW-104S None MW-104D Bis-(2- Ethyl hexyl) Phthalate 3 pg/L U U Di-N-Octyl Phthalate 100 µg/L 5.10 J MW-105S Bis-(2- Ethyl hexyl) Phthalate 3 pg/L U MW-106S None Notes: -NC 2L Standards: NC 2L Groundwater Protection Standards, effective April 2013 -*Concentrations in parts per billion (ppb). -NE: No standard established -J: Estimated value -U: Analyte was below method detection limit - --": Indicates well was not sampled ": Indicates well was not sampled. MW-10 was damaged beyond repair by operations equipment in 2011. MW-105S went dry before samples could be collected for 8270 analysis. -URS is not responsible for data generated or tabulated prior to September 2013. Page 2 of 2 Table 4b Historical Assessment Monitoring Results - Pesticides, Herbicides, and PCB Wilders Grove Landfill Monitoring Well Number Detected Constituent Recorded Concentration' September 22, 2009 March 23, 2010 September 21, 2010 September 28-30, 2015 March 15-16, 2016 September 27-29, 2016 March 22-23, 2017 September 27-29, 2017 March 14-15, 2018 September 20-24, 2018 Dinoseb DNA DNA DNA NS U U U U U U MW-1 2,4,5-T DNA DNA DNA NS U U U U U U 2,4,5-TP -- NS U U U U U U MW-2 Beta-BHC 0.047 U U U U U U U MW-3 2,4,5-T DNA DNA DNA NS U U U U U U MW-4 none Aldrin 0.035 U U U U U U U Gamma-BHC -- U U U U U U U MW-6 2,4-D U U U U U U U Heptachlor 0.039 J U U U U U U MW-8 Beta-BHC -- 0.037 J U U U U U U MW-9 none MW-10 Gamma-BHC 0.037 -- -- NS U U NS NS NS NS MW-11 none Alpha-BHC -- U U U U U U U MW-12 Beta-BHC 0.032 -- -- U U U U U U U Endrin -- U U U U U U U Aldrin 0.043 U U U U U U U MW-100S Gamma-BHC -- -- U U U U U U U Delta-BHC 0.037 0.044 U U U U U U 0.035J Gamma-BHC -- -- U U U U U U U 2,4,5-T DNA DNA DNA U U U U U U U MW-100D 2,4,5-TP U U U U U 1.00 J U Dieldrin U U U U U U U Heptachlor U U U U U U U MW-101 D None U U U U U U U 4,4-DDT -- U U U U U NS NS Aldrin 0.044 -- U U U U U NS NS MW-102S AI ha-BHC 0.039 -- 0.101 U U U 1.39 0.92 NS NS Beta-BHC 0.066 -- -- U U U U U NS NS Delta-BHC -- 0.042 U U U U U NS NS MW-103S None MW-104S 2,4,5-TP 0.059 NS U U U U U U Alpha-BHC 0.04 J U Delta-BHC -- NS U U U 0.073 0.20 0.055 MW-104D 2,4,5-TP NS U U U U U U Meth ox chlor NS U 0.58 J U U U U Heptachlor NS U U U U U U MW-105S Methyoxychlor U U 0.90 J U U NS NS MW-106S None Notes: `Concentration in parts per billion (ppb) or micrograms per liter (µg/L) ": Below Practical Quantitation Limits (PQL's) DNA: Data not available J: Estimated value NS: Not sampled. MW-102S and MW-105S reportedly went dry before samples could be collected for 8270 analysis. PCB: Polychlorinated Biphenyl U: Not detected URS is not responsible for data generated or tabulated prior to September 2013. Page 1 of 1 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - w .o. d O a M r E Q c Q £ m E 7 m E 7 E U o U - @ o U C °' V :O m V C o a10i J o o Z E M m M N > N s w y E 3 F E 3 j V c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (I) 2000 0.3 1000 MW-1 20-Se -94 <5 327 <5 <10 21 <5 0.4 <5 <10 70 MW-1 7-Dec-94 <3 <5 145 <1 <5 <10 <10 <10 <5 0.2 <20 <5 <1 <25 23 MW-1 24-Feb-95 <3 <5 535 13 20 117 0.3 <20 <5 <10 271 MW-1 16-Mar-95 <3 <5 178 3 <5 <10 <10 19 <5 <.2 <20 <5 11 <1 <25 60 MW-1 31-Jul-95 <3 <5 318 3 <1 20 45 18 <.2 <20 <5 <10 <100 <1 <10 <10 118 MW-1 29-Mar-96 <3 <5 147 <2 <1 <10 <10 <10 <5 <.2 <20 <2 <10 <100 <1 <100 <10 47 MW-1 30-Se -96 <1 <100 1.46 <1 <5 <1 13 6 17 <1 <5 <5 61 MW-1 24-Mar-97 <3 <5 88 1.26 <1 7.8 <5 <10 4.75 0.3 <20 <2 <5 <1000 <1 100 13 34 MW-1 15-Se -97 <3 <5 87 <1 <5 <10 7 0.2 <20 <2 <5 <1 18 45 MW-1 30-Mar-98 <3 <5 114 <2 <1 13 6 <10 27 <.2 <20 10 <5 <1000 <1 <5 54 MW-1 21-Se -98 <3 <5 111 1 <1 <10 <10 <10 <5 <20 <2 <5 <1 <10 35 MW-1 22-Mar-99 <3 <5 154 2 <1 <10 6 19 9 <.2 <20 <2 <10 <1000 <1 <2 24 62 MW-1 20-Se -99 <3 <5 78 <2 <5 6 <5 <.2 <5 <2 <5 <1000 <1 <2 <10 23 MW-1 28-Se -00 <3 <5 84 <2 <1 <10 <10 <10 5 <.2 <20 <2 <10 <1000 <1 <2 <10 30 MW-1 19-Mar-01 <3 <5 141 3 <1 <10 24 <20 <2 <5 <1 70 MW-1 25-Se -01 <3 <5 106 <2 <1 <10 13 13 8 <20 <2 <10 <1 14 96 MW-1 20-Mar-02 <3 <5 94 <2 <1 <10 <5 8 <5 <.2 <20 <2 <5 <1000 <1 <2 9 30 MW-1 17-Se -02 <3 <5 135 3 <1 6 16 23 17 5 <2 <5 <1 53 MW-1 13-Mar-03 <10 <10 220 PIM <1 11 14 34 17 <.2 <10 <10 <10 1000 <10 <2 91 MW-1 18-Oct-03 <3 <5 135 2 <1 6 12 20 14 6 <2 <5 1 24 63 MW-1 31-Mar-04 <3 <5 294 7 <1 17 48 29 <.2 11 <2 <5 <1000 1 17 142 MW-1 24-Se -04 <5 <5 70 <5 <2 <5 <5 4 <3 5 5 <2 <5 <5 11 MW-1 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-1 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-1 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-1 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-1 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-1 11-Se -07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-1 19-Mar-08 <6 1 <10 <100 <1 <1 <10 <10 <10 <10 1 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-1 23-Se -08 <6 1 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-1 18-Mar-09 0.1 0.2 58.8 0.2 0.1 0.4 0.3 1.7 0.6 0.04 0.9 U 0.1 U 0.5 7n 2.3 MW-1 22-Se -09 0.1 U 80.3 0.4 U 0.1 0.2 3.5 0.2 0.04 1.9 0.8 0.1 0.1 0.4 4.5 MW-1 23-Mar-10 U 1.6 169 3.1 0.4 5.6 5.5 16 14 U 3.9 1.9 0.1 U 0.4 2 19.9 60 MW-1 21-Se -10 U U 81.8 0.5 0.1 0.1 U 0.2 0.1 U 2.2 0.7 0.1 0.2 0.3 3.2 MW-1 23-Mar-11 U 0.29 80.1 0.53 0.12 0.76 0.38 1.4 0.76 0.08 2.1 1.5 0.05 U 0.2 0.8 0.91 6.5 MW-1 26-Se -11 U 0.4 101 1 0.21 2 F5.8 5.3 5.5 0.07 3.4 1.6 0.05 0.3 5.8 18 MW-1 27-Mar-12 0.16 0.58 95 0.99 0.13 1.4 4.1 1.4 U 3.4 U 1.9 1.4 U U 0.15 0.51 4.4 12 MW-1 18-Sep-12 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-1 13-Mar-13 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-1 24-Sep-13 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-1 25-Mar-14 0.2J 0.68J 75.7J 0.94J 0.23J 2.5J 1.5J 4.2J 4.5J U 1.8J 1.6J U 0.12J 5.6J 10 MW-1 27-Ma -15 0.19J 0.77J 78.9J 0.76J 0.30J 2.1J 12 5.9J U 13 U 1.7J 1.4J 0.02J U 0.26J 0.25J 8.2J 15 MW-1 29-Se -15 0.25J U 53.5J 0.33J 0.14J 1.3J 2.7J 6.1J 2.7J U 1.3J 0.38J U 0.10J 1.2J 8.1J MW-1 15-Mar-16 0.28J U 64.8J 0.46J 0.14J 1.8J 10.0 4.OJ U 3.5J U 1.2J U U U 0.16J U 3.OJ 7.9J MW-1 27-Se -16 U U 84.9J 0.60J 0.10J 0.63J 0.76J 1.3J 1.1J U 2.OJ 0.88J U 0.12J 1.1J 6.1J MW-1 22-Mar-17 0.11J 0.70J 91.3J 0.95J 0.22J 1.2J 2.5J 3.6J U 3.7J U 2.6J 1.6J U U 0.14J 0.20J 3.4J 12 MW-1 28-Se -17 0.14J 0.82J 162 3 0.47J 5.5J 6.9J 14 25 U 5.1J 2.OJ U 22.5J 58 MW-1 14-Mar-18 U I U 58.1J 0.24J 0.08J 0.38J 0.38J 2.9J U 1.1J U 1.1J U U U U U 1.1J 4.1J MW-1 20-Sep-18 0.22J 0.24J 40.9 0.35J 0.20J 1.4J 7 7.OJ 2.OJ U 1.3J 0.33J U 0.06J 2.0 9.1J Page 1 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 O 2 d o 2 o- R N c E Q w Q E '- A m E - �' m E E -a U E O U @ a o U d a o U d p c >. U c p - v m J 2 u m '2 Y Z E c 3 M > N a, s w 7 h E E = 10 c F E 3 v C u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-2 20-Se -94 <5 1070 28 77 59 1 <.2 <5 <10 374 MW-2 7-Dec-94 <3 <5 615 7 21 26 36 37 82 <.2 <20 <5 <10 <1 MW-2 24-Feb-95 <3 <5 500 5 17 22 35 27 66 <.2 <20 <5 <10 <1 203 MW-2 16-Mar-95 <3 <5 651 8 23 19 20 35 137 <.2 <20 <5 <10 <1 54 258 MW-2 31-Jul-95 <3 <5 534 2 <1 45 35 23 24 <.2 <20 <5 <10 <1000 <1 <10 <25 211 MW-2 29-Mar-96 <3 <5 610 5 <1 10.8 37 24 8 <.2 <20 <2 <10 <1000 <1 <100 42 207 MW-2 30-Se -96 <10 361 3.53 <1 16 38 24 24 17 <10 <5 <5 <25 110 MW-2 24-Mar-97 <3 <5 1290 4.24 <1 47.9 40 24 29.5 <.2 <20 <.02 <5 <100 <100 128 251 MW-2 15-Se -97 <3 <5 1000 2.28 <1 15 22 <10 20 <20 <2 <5 <1 42 97 MW-2 30-Mar-98 <3 <5 1240 4 <1 38 25 <10 45 <.2 <20 <2 <5 <1000 <1 <5 33 121 MW-2 21-Se -98 <3 <5 915 <1 1.6 <10 21.1 <10 7.1 <20 3.2 <5 <1 <10 29 MW-2 22-Mar-99 <3 <5 79CM <2 1 <10 16 <10 15 <.2 <20 <2 <20<1000 <1 <2 12 42 MW-2 20-Se -99 <3 <5 1180 <2 1 <5 23 13 15 <.2 5 <2 <5 <1000 <1 4 15 56 MW-2 28-Se -00 <3 <5 908 <2 <1 <10 21 <10 9 <.2 <20 3 <10 <1000 <1 <2 <10 25 MW-2 19-Mar-01 <3 <5 1060 <2 <1 <10 18 <10 23 <20 3 <5 <1 18 53 MW-2 25-Se -01 <3 <5 1090 <2 1 <10 30 <10 12 <20 3 <10 I <1 13 40 MW-2 22-Mar-02 <3 <5 614 <2 <1 <10 24 3 5 <.2 <20 3 <5 <1000 <1 <2 6 14 MW-2 16-Se -02 <3 <5 976 <2 <1 <5 28 4 7 <5 2 <5 <1 8 20 MW-2 13-Mar-03 <10 <10 976 <2 1 <10 25 <10 <10 <.2 <10 <10 <10 1200 <10 <2 <10 16 MW-2 17-Oct-03 <3 <5 828 <2 1 <5 27 6 8 17 9 <5 <1 9 32 MW-2 30-Mar-04 <3 <5 1040 <2 <1 <5 17 10 5 <.2 10 7 <5 <1000 <1 <2 <10 12 MW-2 24-Se -04 <5 <5 1 <5 <2 <5 19 <3 <3 <5 <5 <2 <5 <5 9 MW-2 15-Mar-05 <30 <10 <2 <1 <10 20 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-2 20-Se -05 <30 <10 627 <2 <1 <10 15 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-2 23-Mar-06 <30 <10 16 <2 <1 <10 17 <200 <10 <.5 <50 <20 <10 <100 <10 <100 <40 <50 MW-2 26-Se -06 <30 <10 909 <2 <1 <10 16 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-2 21-Mar-07 <6 <10 689 <1 <1 <10 18 <10 <10 <.2 <50 <10 <10 <100 <5 <100 <25 <10 MW-2 11-Se -07 <6 <10 900 <1 <1 <10 14 <10 <10 <.2 <50 <10 <10 <5 <25 16 MW-2 19-Mar-08 <6 <10 898 <1 <1 <10 13 <10 <10 <.2 <50 13 <10 <100 <5 <100 <25 <10 MW-2 23-Se -08 <6 <10 918 <1 <1 <10 14 <10 <10 <.2 <50 <10 <10 <5 <25 17 MW-2 18-Mar-09 0.1 3.1 723 0.2 0.9 0.3 14 1.6 U 0.5 0.04 5.1 5.4 0.1 U 0.8 1.8 4.4 MW-2 22-Se -09 0.1 2.7 769 0.2 0.2 0.1 10 1.1 0.5 U 4.8 2.8 U 0.1 2.2 11 MW-2 23-Mar-10 U 2.6 923 0.2 0.2 0.2 12 1.5 U 0.3 U 4.8 5.1 0.1 U U 0.7 2.1 11 MW-2 21-Sep-10 U 2.9 1110 0.2 0.1 0.4 9.3 0.8 0.2 U 7.2 3.5 U U 2.4 2.7 MW-2 23-Mar-11 0.14 3.1 1170 0.12 0.12 0.42 7.9 1 U 0.24 0.1 4.3 5.8 0.04 U 0.09 0.81 1.1 3.4 MW-2 26-Se -11 U 2.9 1199 0.13 0.1 U 7.6 0.92 0.18 U 3.9 4.8 U 0.12 0.98 3.8 MW-2 27-Mar-12 0.16 0.58 1136 0.99 0.13 1.4 2.8 4.1 3.4 U 4.3 5.8 U U 0.15 0.51 4.4 3.4 MW-2 18-Sep-12 0.09J 2.2,1 1082 0.13J U 0.34J 7.4J 1.4,1 0.22J 0.03J 4.0,1 3.4,1 U U 0.51 0.81J 2.3,1 MW-2 13-Mar-13 0.17 3.5 811 0.11 10.13, 0.4 18.2J 0.99 1 0.28 U 5.9 7.7 U U 0.51 1.2 4.3 MW-2 24-Sep-13 0.13J 2.3,1 916 0.1J U 0.38J 7.8J 1.3,1 0.26J U 5.4,1 4J U U 1.2,1 3.8J MW-2 25-Mar-14 0.14J 2.7,1 1012 0.26J 0.15J 0.26J 8.OJ 1.2,1 1.7,1 U 5.7,1 4.4J U 0.07J 3.OJ 6.7J MW-2 27-May-15 0.10J 2.2,1 936 0.12J 0.05J U 6.9J 0.62J U 0.39J U 3.5,1 3.1J U U U 0.36J 1.5J 2.5,1 MW-2 29-Se -15 0.27J 2.3,1 937 2 0.85J 2.6,1 11 4.6J 11 U 5.8J 3.5,1 0.06J J 8.8J 46 MW-2 15-Mar-16 0.17J 2.4, 960 0.17J 0.10J 0.38J 6.3J 1.1, U 0.62J U 5.6, 4.2, U U U 0.39J 2.OJ 2.3J MW-2 27-Sep-16 0.13J 2.1J 907 0.19J 0.13J 0.50J 5.5J 0.77J 0.23J U 6.4,1 2.4,1 U 0.05J 1.5J 2.5J MW-2 22-Mar-17 0.22J 2.9, 989 0.92J 1 1.4, 6.1J 2.9, U 6.3, U 5.2, 6.1J U U 0.20J 0.69J 5.8J 31 MW-2 28-Sep-17 0.10J 4.6,1 1004 0.86J 0.61J 1.1,1 4.6J 2.0,1 4.4,1 U 4.5,1 5.8,1 U U 7.7J 15 MW-2 14-Mar-18 0.07J 2.5, 954 0.08J 0.08J U 4.3J 0.82J U 0.25J U 5.0, 5.6J U U U 0.26J 0.51J 1.9J MW-2 20-Sep-18 0.18J 3.6,1 974 2 1 3.7J 5.7 4.8J 13 U 5.3,1 5.7,1 0.11J 0.30J 9.3 1 32 Page 2 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 4 O 2 d o 2 o- R N c E Q w Q E '- A m E - �' m E E -a U E O U @ a o U d a o U d p c >. U c p - v m J 2 u m '2 Y Z E c 3 M > N a, s w 7 h E E = 10 c F E 3 v C u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-3 20-Se -94 <5 630 <5 <10 <10 <.2 <5 <10 40 MW-3 7-Dec-94 <3 <5 654 8 <5 16 <10 28 <.2 <20 <5 <10 <1 55 104 MW-3 24-Feb-95 <3 <5 352 9 <5 19 <10 25 <.2 <20 <5 <10 <1 91 MW-3 16-Mar-95 <3 <5 300 4 <5 <10 <10 <10 t<5 <.2 <20 <5 <10 <1 <25 47 MW-3 31-Jul-95 <3 <5 525 2 <1 13 <10 <.2 <20 <5 <10 <100 <1 <10 <25 42 MW-3 29-Mar-96 <3 <5 114 <3 <5 <1 <10 <10 <.2 <20 <2 <10 <100 <1 <100 16 44 MW-3 30-Se -96 <10 <10 129 2.39 <1 <5 <10 14 14 <10 <5 <5 <25 47 MW-3 24-Mar-97 <3 <5 290 <1 <1 <5 6.2 <10 <.2 <20 <2 <5 <1000 <1 <100 6.9 32 MW-3 15-Se -97 <3 <5 1 303 <1 I <1 <5 1 8 <10 1 1 <5 1 <20 1 <2 <5 <1 <5 36 MW-3 30-Mar-98 <5 89 <2 <1 <10 12 <10 <5 <.2 <20 7 <5 <1000 <1 1060 7 27 MW-3 21-Se -98 <3 <5 258 <1 1.1 <10 12 <10 <5 <20 <2 <5 <1 <10 <10 24 MW-3 22-Mar-99 <3 <5 121 <2 <1 <10 6 <10 <5 <.2 <20 <2 <10 <1000 <1 <2 <10 12 MW-3 20-Se -99 <3 <5 74 <2 <1 <5 <5 7 <5 <.2 <5 <2 <5 <1000 <1 <2 <10 16 MW-3 28-Se -00 <3 <5 65 <2 <1 <10 <10 <10 <5 <20 <2 <10 <1000 <1 <2 <10 <10 MW-3 19-Mar-01 <3 <5 72 <2 <1 <10 <5 <10 <5 <20 <2 <10 <1 <10 <10 MW-3 25-Se -01 <5 79 <2 <1 <10 <5 <10 <5 <20 2 <10 <1 14 MW-3 22-Mar-02 <3 <5 94 <2 <1 <5 <5 <10 <5 <.2 <20 <2 <1 <1000 <1 <2 <10 21 MW-3 17-Se -02 <3 <5 100 <2 <1 <5 <5 9 7 <5 <2 <5 <1 8 18 MW-3 13-Mar-03 <10 <10 92 <2 <1 <10 <10 <10 <10 <.2 <10 <10 <10 1200 <10 <2 <10 <10 MW-3 17-Oct-03 <3 <5 93 <2 <1 <5 <5 2 <5 <5 3 <5 <1 <5 8 MW-3 31-Mar-04 <3 <5 90 <2 <1 <5 <5 <5 <5 <.2 <5 <2 <5 <1000 <1 6 <5 <5 MW-3 24-Se -04 <5 <5 83 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 4 MW-3 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-3 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-3 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-3 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-3 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-3 11-Se -07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-3 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-3 23-Se -08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <10 MW-3 18-Mar-09 0.8 1.1 118 0.2 0.2 U 0.8 1.2 U 0.2 0.07 0.9 0.4 0.1 U 0.1 0.61.8 MW-3 22-Se -09 0.7 0.8 115 0.2 0.2 U 0.5 1.1 0.4 0.05 1.2 0.8 0.1 U 5.8 MW-3 23-Mar-10 U 0.8 117 0.1 0.1 U 0.5 0.6 U 0.2 U 0.9 0.9 0.1 U U 0.31.6 I MW-3 21-Se -10 U 0.6 106 0.1 U U 0.5 0.3 0.1 U 1.3 1 U U 1.2 MW-3 23-Mar-11 U 0.76 119 0.14 0.16 0.12 0.3 1 U 0.28 0.09 0.99 0.58 U 122 0.03 0.342.1 MW-3 26-Se -11 U 0.56 114 0.17 0.09 U 0.26 0.99 0.24 U 1.5 1.1 U U U MW-3 27-Mar-12 U 0.58 106 0.16 0.09 U 0.21 0.06 U 0.1 U 0.47 0.25 U U U U . 0.68 MW-3 18-Se -12 0.04J 0.47J 98J 0.14J 0.05J U 0.15J 0.41J U 0.10J U 0.73J 0.42J U U U U 0.33J 0.79J MW-3 13-Mar-13 U 0.6 107 10.14 0.09 U 0.14 0.23 U U U 0.73 1.1 U U U U 0.30J 1.7 MW-3 24-Se -13 0.07J 0.75J 140 10.14J 0.24J U 0.09J 0.57J 0.09J U 5.1,1 0.89J U U 0.36J 1.6,1 MW-3 25-Mar-14 0.07J 0.67J 141 0.21J 0.16J U 0.18J 0.64J 0.14J U 1.2,1 1.2,1 U 0.06J 0.95J 1.6,1 MW-3 27-Ma -15 0.05J 0.55J 150 0.12J 0.08J U 0.16J 0.33J U 0.07J U 0.91J 0.73J U U U 0.07J 0.78J 1.5J MW-3 29-Se -15 0.13J U 147 0.22J 0.10J 0.25J 0.32J 0.85J 0.47J U 1.2,1 0.85J U U U 1.4J MW-3 15-Mar-16 0.65J U 139 0.11J 0.12J U 0.13J 0.49J U U U 1.1,1 0.68J U U U U 0.52J U MW-3 27-Se -16 0.05J U 142 0.19J 0.12J 0.14J 0.26J 0.67J 0.39J U 1.3,1 0.74J U U 2.2J U MW-3 22-Mar-17 U U 126 0.20J 0.42J U 0.19J 0.59J U 0.33J U 2.9,1 0.64J U U U U U 2.6,1 MW-3 28-Se -17 0.12J 0.29J 144 0.53J 0.85J 0.43J 0.83J 1.9,1 1.6J U 1.7J 0.89J U U 10.7J 5.4J MW-3 14-Mar-18 U 0.23J 135 0.13J 0.14J U U 0.44J U U U 0.91J U U U U U 0.28J 1.5J MW-3 20-Sep-18 0.05J 0.59J 119 0.19J 0.20J 0.39J 0.30J 0.65J 0.17J U 0.87J 1.1,1 U U 0.94J 2.4J Page 3 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 d o 2 a M c E Q w Q E m E - m E E U E U @ a U d CL a U d p @ U c o v y J 2 u r2 Z E m U)N > a, s w h E E M F c ~ E 3 ; u c_ N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (I) 2000 O.3 1000 MW-4 7-Dec-94 <3 <5 180 <1 <5 18 <5 <.2 <20 <5 <10 <1 73 MW-4 24-Feb-95 <3 <5 593 2 9 53 20 <.2 37 <5 <10 <1 169 MW-4 16-Mar-95 <3 <5 139 <1 <5 <10 <5 <.2 <20 <5 <10 <1 <25 34 MW-4 31-Jul-95 <3 <5 222 <1 <1 29 T36 7 <.2 <20 <5 <10 <100 <1 <10 32 68 MW-4 29-Mar-96 <10 <10 234 <2 <1 21.5 6.9 <.2 <20 <2 <100 <1 <10 72 66 MW-4 30-Se -96 <10 <10 276 1.96 <1 27 9 <.2 14 <1 <5 <5 116 96 MW-4 24-Mar-97 <3 <5 60 <1 .8 24 <2 <5 <100 <100 254 250 MW-4 15-Se -97 <3 <5 249 1.28 35 13 <20 <2 <5 <1 90 76 MW4 30-Mar-98 <3 <5 348 2 <1 67 16 <1 17 <.2 <20 2 <5 <1000 <1 <5 91 89 MW-4 21-Se -98 <3 <5 406 2 <1 27.8 15 11 13.r <20 <2 <5 <1 80 143 MW4 22-Mar-99 <3 <5 138 <2 <1 <10 <5 <10 <5 <.2 <20 <2 <10 <1000 <1 <2 21 1 22 MW-4 20-Se -99 <3 <5 326 <2 <1 32 14 8 6 <.2 16 <2 <5 <100 <2 83 MW4 29-Se -00 <3 <5 148 <2 <1 <10 <10 <10 6 <.2 <20 <2 <10 <100 <1 <2 24 29 MW-4 20-Mar-01 <3 <5 134 6 <1 <10 9 24 31 <20 <2 <10 <1 88 MW-4 25-Se -01 <3 <5 128 6 <1 <10 11 22 30 <20 <2 <10 <1 92 MW-4 20-Mar-02 <3 <5 68 4 <1 7 5 16 20 <.2 <20 <2 <5 <100 <1 <2 23 68 MW-4 17-Se -02 <3 <5 122 7 <1 16ht3 41 42 19 <2 <5 161 MW-4 13-Mar-03 <10 <10 21 <2 <1 <10 <10 <10 <10 <.2 <10 <10 <10 <1000 <10 <2 <10 17 MW4 18-Oct-03 <3 <5 41 <2 <1 <5 <5 7 7 <5 <2 <5 <1 10 32 MW-4 30-Mar-04 = <5 107 3 <1 7 15 22 <.2 <10 <2 <5 <100 <2 79 MW4 24-Se -04 <5 <5 29 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 9 MW-4 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 4.4 <50 <20 <10 <1000 <10 <100 <40 <50 MW-4 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 1.3 <50 <20 <10 <10 <40 <50 MW-4 23-Mar-06 <30 <10 <500 2 <1 <10 <10 <200 <10 2. <50 <20 <10 <1000 <10 <100 <40 <50 MW-4 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 MW-4 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 1.0 <50 <10 <10 <1000 <5 <100 <25 <10 MW-4 11-Se -07 <6 1 <10 I <100 <1 <1 I <10 I <10 <10 I I <10 <50 1 <10 <10 <5 <25 <10 MW-4 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 1 <10 <10 <100C <5 <100 <25 <10 MW-4 23-Se -08 <6 <10 <100 <1 <1 <10 <10 <10 <10 0.84 <50 <10 <10 <5 <25 <10 MW-4 18-Mar-09 0.2 0.3 13.9 0.7 0.1 U 0.3 1.1 U 0.8 0.83 0.3 U 0.1 U 0.1 0.5 1.161 4.6 MW-4 22-Se -09 0.2 0.4 52.1 3 0.1 2.3 8.8 13 .5 2 0.4 0.256 MW-4 23-Mar-10 U U 26.8 0.8 0.1 U 0.4 1 U 0.4 0.61 0.3 0.5 0.1 U 0.1 0.3 4.7 MW-4 21-Sep-10 0.5 U 12.1 0.5 0.1 U 0.2 0.4 0.1 0.4 0.2 U 0.1 0.1 1.4 MW-4 23-Mar-11 0.21 10.7 0.51 0.05 U 0.13 0.47 U 0.11 0.65 0.27 0.59 U U 0.1 0.4 U 1.5 MW-4 26-Se -11 U U 10.8 0.57 U U 0.29 1.2 0.87 0.41 0.3 0.48 U 0.1 1.3 4.9 MW-4 27-Mar-12 U U 12.2 0.59 0.07 U 0.24 0.53 U 0.57 .6 U 0.26 U U 0.09 0.38 0.98 3 MW-4 18-Se -12 U U 15.6J 0.78J 0.04J 0.44J 0.54J 2.2J U 2.2J 0.86 0.55J 0.52J U U 0.12J 0.38 3.1J 9.9J MW-4 13-Mar-13 0.13 U 14 0.76 0.05 0.5 0.57 1.8 U 2.2 0.52 0.15 0.37 U U 0.12 0.38 3.OJ 9.8 MW-4 24-Sep-13 0.07J 0.08J 13.7J 0.49J U U 0.2J 0.8J 0.24J 0.09J 4J 0.45J U 0.47J 4.3J MW-4 25-Mar-14 0.34J 0.30J 24.2J 0.66J 0.08J U 0.39J 0.31J 0.37J 0.73J U 0.70J 0.03J 1.31 4.4J MW-4 27-Ma -15 0.03J U 29.OJ 0.72J 0.06J U 0.40J 0.26J U 0.15J 0.14J 0.32J 0.54J 0.01J U 0.57J 2.3J MW-4 29-Sep-15 0.19J U 11.9J 0.52J 0.05J U 0.15J 0.19J 0.10J 0.12J 0.16J 0.28J U U 1.3J MW-4 15-Mar-16 0.22J U 39.OJ 1 0.14J 0.86J 1.1J 1.8J U 2.4J 0.09J 0.71J U U U T0.24JO.07J 3.6J 14 MW-4 27-Se -16 0.21J U 11.OJ 0.51J U U 0.18J 0.30J U 0.89 0.11J U U U 2.5JMW-4 22-Mar-17 U U 21.8J 1 0.07J 0.19J 0.80J 1.9J U 3.1J 0.19J 0.53J U U U 3.OJ 13 MW-4 28-Se -17 U U 17.3J 0.74J U 0.20J 0.76J 1.3J 2.0J U 0.31J U U 1.7J 5.5,1 MW4 14-Mar-18 U U 13.1J 0.62J U U 0.31J 0.57J U 0.77J 0.74 0.33J U U U 0.09J U 0.70J 2.9J MW-4 20-Se -18 0.11J 0.14J 15.1 0.74J 0.20J U 0.40J 0.57J 0.51J 0.68 0.14J 0.45J U 0.13J 0.60J 4.2J Page 4 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 2M d o 2 a c E Q 0 Q m m E U E U o U °' U R U o a10i J o n Z E y to > U)to m w E F E j c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-6 20-Se -94 <5 264 13 85 2050 <5 <.2 <5 77 2470 MW-6 7-Dec-94 <3 <5 404 3 12 98 350 3740 <5 <.2 690 <5 12 <1 56 4170 MW-6 24-Feb-95 <3 <5 155 <1 <5 32 98 1190 <.2 218 <5 30 <25 1300 MW-6 16-Mar-95 <3 <10 302 2 8 68 214 2580 <.2 555 <5 <10 34 3490 MW-6 31-Jul-95 <3 <5 326 1 4 135 167 <.2 <5 30 <100 <1 <10 <25 1760 MW-6 29-Mar-96 <3 <10 118 <2 <1 <10 40 165 <5 <.2 47 <2 10 <100 <1 <100 <10 253 MW-6 30 Se -96 <3 <10 197 1.65 6.5 33 91 597 20 <10 36 <5 975 MW-6 24-Mar-97 <3 <5 128 <1 <1 17.5 37 131 <5 <.2 34 <2 6 <100 <1 <100 12 209 MW-6 15-Se -97 <3 <5 79 <1 2 <5 34 55 <5 29 2 <5 <1 5 117 MW-6 30-Mar-98 <3 <5 124 <2 3 33 48 93 8 1 <.2 25 9 <5 <1000 <1 <50 9 154 MW-6 21-Sep-98 <3 <5 222 1 20.5 54.9 168 112001 3.1 9 1 <1 19.4 MW-6 22-Mar-99 <3 <5 139 <2 12 25 118 499 10 <.2 2 <1000 <1 4 11 771 MW-6 20-Sep-99 <3 <5 111 <2 8 17 56 289 7 <.2 47 4 13 <1000 <1 3 10 314 MW-6 28-Se -00 <3 <5 87 <2 15 <10 56 176 <5 <.2 42 5 <10 <1000 <1 <2 <10 230 MW-6 19-Mar-01 <3 <5 127 <2 8 16 55 365 6 20 7 16 <1 <10 320 MW-6 25-Se -01 <3 <5 109 <2 <1 <10 60 42 <5 21 4 <10 <1 <5 55 MW-6 22-Mar-02 <3 <5 111 <2 <1 <10 61 41 <5 <.2 24 11 <10 <1000 <1 <2 <10 53 MW-6 16-Se -02 <3 <5 98 <2 1 <1 1 <5 70 22 <5 14 4 <5 <1 <5 24 MW-6 12-Mar-03 <10 <10 112 <2 <10 76 <10 <10 <.2 20 11 <10 <1000 <10 <2 <10 24 MW-6 16-Oct-03 <3 5 99 <2 1 <5 82 13 <5 26 17 <5 <1 <5 36 MW-6 30-Mar-04 <5 106 <2 <1 <5 68 17 <5 <.2 18 13 <5 <1000 <1 <2 <10 36 MW-6 24-Se -04 <5 <5 90 <5 <2 <5 71 4 <3 16 <5 <2 <5 <5 18 MW-6 15-Mar-05 <30 <10 <500 <2 OW 40 90 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 93 MW-6 20-Se -05 <30 <10 <500 <2 1 <10 99 <200 <10 <.5 <50 <20 <10 <10 <40 81 MW-6 23-Mar-06 <30 <10 <500 <2 2 <10 105 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-6 26-Se -06 <30 <10 <500 <2 <1 <10 99 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-6 21-Mar-07 <6 <10 <100 <1 <1 I <10 73 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-6 11-Se -07 <6 <10 <100 <1 <1 <10 109 <10 <10 <.2 <50 <10 <10 <5 <25 90 MW-6 19-Mar-08 <6 <10 <100 <1 <1 <10 71 <10 <10 <.2 <50 12 <10 <1000 <5 <100 <25 <10 MW-6 23-Se -08 <6 <10 <100 <1 <1 <10 78 <10 <10 <.2 <50 <10 <10 <5 1 <25 <10 MW-6 18-Mar-09 0.2 2.5 83.5 0.1 1 0.4 69 6.3 U 0.5 U 9.2 6.3 0.4 U 0.1 1-m 1 28 MW-6 22-Se -09 0.2 1.6 66 0.1 0.3 0.5 95 7.4 0.6 U 11.4 2.5 0.5 U 1.4 44 MW-6 23-Mar-10 U 0.9 53.1 0.1 0.3 0.3 56 10 U 0.9 U 8.4 2.5 0.3 U U 1.2 1.7 18 MW-6 21-Sep-10 0.3 1.7 63.8 0.1 0.4 0.3 83 7.8 0.4 U 11 4.9 0.2 0.1 1 45 MW-6 23-Mar-11 0.83 1.4 56.7 0.06 2 10.71 84 7.2 U 0.7 U 11.3 3.2 0.3 U 0.17 1.8 0.82 103 MW-6 26-Se -11 U 0.78 48.3 0.06 0.62 U 76 9.5 0.61 U U 2.4 0.14 0.13 1.4 59 MW-6 27-Mar-12 U 10.99 48 U 0.16 U 45 0.8 U 0.08 0.18 6 2.9 U U U 0.57 U 7.7 MW-6 19-Se -12 0.11J 0.84J 62.6J O.08J 0.11J 0.28J 60 4.6,1 U 0.79J 0.58 13.5J 2.1J U U U 10.57, 1.OJ 17 MW-6 13-Mar-13 0.08 2.3 55.2 U 0.28 0.34 58 2.9 U 0.29 U 9.1 6 U U 0.32JI 0.57 0.28 11 MW-6 25-Sep-13 0.1J 0.88J 26.5J 0.11J 0.1,1 U 37 1.8,1 963 0.36J 0.05J 7.4J 1.6,1 U 0.28J 1.3J 8.2,1 MW-6 25-Mar-14 0.09J 1.2,1 42.9J 0.05J U U 71 1.4 283J 0.05J 0.02J 8.OJ 4.1J U U 0.45J 12 MW-6 27-Ma -15 0.22J U 10.OJ 0.08J 4 U 16 3.5J U 261J 0.44J 0.18J 4.OJ 0.55J 0.13J U 0.12J 0.07J U 776 MW-6 30-Sep-15 0.08J 0.40J 30.9J 0.06J 0.41J 0.22J 68 2.1J 482 0.28J U 7.8J 1.3,1 0.03J 0.091 0.59J 13 MW-6 16-Mar-16 0.72J U 15.2J 0.06J 0.31J 0.96J 23 2.9,1 U 364 0.11J U 4.3J 0.56J U U U 0.12J U 24 MW-6 27-Se -16 0.08J 0.69J 31.4J 0.08J 0.26J 0.25J 86 2.8,1 598 0.57J U 10.OJ 1.5,1 0.07J U 0.42J 17 MW-6 23-Mar-17 U U 23.7J 0.04J 0.20J U 47 2.1J U 241J 0.14J U 8.1,1 2.2,1 U U U 0.20J U 17 MW-6 27-Se -17 0.10J 0.81J 32.2J 0.08J 2 0.60J 73 16 742 0.92J U 10AJ 2.0,1 0.51J U U 1.1J 46 MW-6 15-Mar-18 0.06J 1.00J 51.2J 0.10J 2 0.37J 58 8.4,1 U 992 1.1,1 U 8.1,1 3.3J 0.21J U U U 1.1J 40 MW-6 24-Sep-18 0.08J 0.56J 29.2 U 0.50J 0.17J 44 2.9,1 89 0.11J U 6.9,1 1.1,1 U U 0.06J 0.04J 21 Page 5 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 C C 2 d o E R N c E C Q c Q E CO W m E U o L U @ o U C °- U p m >. U c o - v a10i J o m o Z M m m N y h s H (aN > NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-8 20-Se -94 <5 1750 13 133 304 0.3 <5 <10 571 MW-8 7-Dec-94 <3 <5 1220 20 20 95 36 504 <5 0.22 46 <5 <10 4 288 247 MW-8 24-Feb-95 <3 <5 1090 17 18 75 33 440 fu 0.8 40 <5 <10 4 200 571 MW-8 16-Mar-95 <6 <5 3"0 31 51 189 68 1330 251 2.98 96 <5 <10 9 38 1790 MW-8 31-Jul-95 <3 <5 1480 12 <1 160 36 592 96 0.7 54 <5 <10 <1000 3 <10 115 838 MW-8 29-Mar-96 <3 <5 270 4 <1 <10 <10 97 25.7 <.2 <20 <2 <10 <1000 <1 <100 48 149 MW-8 30-Se -96 <10 <10 621 1 41 21 260 57 42 <10 6 <5 168 295 MW-8 24-Mar-97 <3 <5 208 <1 23.5 7.3 65 13.6 <.2 <20 <2 <5 <100C 13 <100 58 117 MW-8 15-Se -97 <3 <5 158 2.38 <1 18 5 47 18 <20 <2 <5 <1 46 67 MW-8 30-Mar-98 <3 <5 265 2 <1 44 10 74 23 1.54 15 <2 <5 <100C <1 <50 41 149 MW-8 21-Se -98 <3 <5 183 2 <1 10.9 <10 50 136 0.48 22 <2 <5 <1 J6.4 93 MW-8 22-Mar-99 <3 <5 484 5 1 32 15 168 32 1.35 34 2 <10 Z1 OOC = <2 228 MW-8 20-Se -99 <3 <5 132 <2 <1 8 <5 30 7 1 <2 20 <2 <5 <100C <1 <2 17 54 MW-8 28-Se -00 <3 <5 163 <2 2 10 <10 43 9 5 26 <2 <10 <100C <1 <2 22 80 MW-8 19-Mar-01 <3 1 <5 85 <2 <1 <10 <5 14 <5 0.52 <20 1 <2 1 <5 <1 <10 1 33 MW-8 25-Se -01 <3 <5 230 2 1 16 8 61 13 32 2 10 65 MW-8 20-Mar-02 <3 <5 84 <2 <1 <10 <5 13 <5 0.42 20 <2 <5 <100 7 24 MW-8 17-Se -02 <3 <5 83 <2 <5 <5 12 <5 28 <2 <5 5 24 MW-8 13-Mar-03 <10 <10 216 3 <1 13 <10 54 14 0.5 23 <10 <10 1200 $<1<2 9MW-8 18-Oct-03 <3 <5 85 <2 <1 <5 <5 10 <5 12 <2 <5 6 21 MW-8 30-Mar-04 <3 <5 94 <2 <1 <5 10 5 19 <2 <5 <100<10 34 MW-8 24-Se -04 <5 <5 67 <5 <2 <5 3 <3 18 <5 <2 <5 8 MW-8 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 2 <50 <20 <10 <100 <40 <50 MW-8 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 2.2 <50 <20 <10 <10 <40 <50 MW-8 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 4.29 <50 <20 <10 <1000 <10 <100 <40 <50 MW-8 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 1.8 <50 <20 <10 <10 <40 <50 MW-8 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 1.7 <50 <10 <10 <1000 <5 <100 <25 <10 MW-8 11-Se -07 <6 <10 <100 <1 <1 <10 <10 <10 <10 2.9 <50 <10 <10 <5 <25 <10 MW-8 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 1.5 <50 <10 <10 <1000 <5 <100 <25 <10 MW-8 23-Se -08 <6 <10 <100 <1 <1 <10 14.9 <10 <10 <50 <10 <10 <5 <25 <10 MW-8 18-Mar-09 0.1 0.4 128 1 0.6 2.2 6.5 11 U 3.5 0.43 12.5 U 0.1 U 0.2 0.7 22 MW-8 22-Se -09 U 0.2 97.2 0.6 0.3 0.3 1.8 4.1 1.6 0.24 9.1 U 0.1 U 2.2 11 MW-8 23-Mar-10 U 1 320 3.4 0.7 11 M 45 U 10.7 0.9 0.3 U 0.8 3.9 25 107 MW-8 21-Sep-10 U U 82.1 0.5 0.3 0.1 1.5 2.2 0.7 0.55 6.7 U 0.1 U 1.3 4.5 MW-8 23-Mar-11 0.23 0.42 110 0.78 0.23 3.3 1.9 9.8 U 3.1 0.18 8.5 0.33 0.07 U 0.18 1.3 5.3 24 MW-8 26-Se -11 U U 82.3 0.32 0.3 U 1.9 0.59 U U 13.3 U U U U 4 MW-8 27-Mar-12 U 0.46 136 1 0.42 5.2 .3 16 U 6 0.23 8.4 U 0.1 166 1.2 8.6 34 MW-8 18-Sep-12 0AJ 0.18J 98.5J 0.65J 0.91J 2.OJ 1.9J 6.8,1 U 2.OJ 0.34 10AJ 0.44J U 166 0.15J 1.2 3.8J 2.7,1 MW-8 13-Mar-13 U U 86.8 0.5 1 0.49 1.4 2.6 U 0.66 U 6.8 0.45 U 166 U 1.2 1.4 8.4 MW-8 24-Sep-13 0.15J U 85.7J 0.34J 0.17J 0.08J 1.6J 1.6,1 0.15J U 9.5,1 0.2,1 U U 0.22J 6.1J MW-8 25-Mar-14 0.16J 0.63J 101 0.88J 0.17J 1.3,1 7.7J 7.5,1 2.8,1 0.54J 8.OJ 10.71IJ U 0.13J 4.4J 12 MW-8 27-Ma -15 0.13J 0.22J 160 1 0.18J 3.3,1 9.6J 14 U 7.5J 0.24 7.OJ 0.86J 0.04J U 0.36J 0.60J 8.7J 25 MW-8 29-Se -15 0.07J U 97.5J 0.64J 0.16J 1.2,1 5.5J 5.0,1 1.9,1 0.11J 8.1,1 0.25J 0.02J 0.12J 2.8J 9.3J MW-8 15-Mar-16 0.28J U 139 1 0.15J 3.4J 17 13 U 5.5J 0.26 9.5,1 0.64J U U 0.22J 0.28J 7.4J 21 MW-8 27-Se -16 U U 85.9J 0.36J 0.14J 0.11J 1.3,1 1.7,1 0.60J U 6.1,1 U U U 0.83J 5.5,1 MW-8 22-Mar-17 U U 97.OJ 0.46J 0.14J 0.49J 1.8J 2.5,1 U 0.68J U 3.9,1 U U U 0.06J 0.10J 1.1J 7.8J MW-8 28-Se -17 U 0.50J 255 2 0.56J 6.6,1 3.OJ 47 12 0.17J 6.5,1 0.64J U 0.67J 21.4J 92 MW-8 14-Mar-18 U U 99.7J 0.30J 0.65J U 1.2J 0.65J U U 0.OSJ 5.3J U U U U U U 5.1J MW-8 20-Sep-18 0.06J 0.24J 140 1 0A 3.2J 2.1 13 3.9J 0.06J NJ 0.65J 0.09J 0.21J 6.6 33 Page 6 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 O 2 d o 2 o- R N c E Q w Q E '- A m E - �' m E E -a U E O U @ a o U d a o U d p c >. U c p - v m J 2 u m '2 Y Z E c 3 M > N a, s w 7 h E E = 10 c F E 3 v C u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-9 20-Se -94 <5 609 6 38 106 <5 <.2 <5 <10 211 MW-9 7-Dec-94 <3 <5 701 16 10 79 212 <5 <.2 64 <5 <10 2 176 407 MW-9 24-Feb-95 <3 <5 1000 18 19 72 3 325 <.2 <5 <10 4 152 585 MW-9 16-Mar-95 <3 <5 570 12 7 48 24 159 <.2 49 <5 <10 1 78 328 MW-9 31-Jul-05 <3 <5 941 13 <1 130 37 306 4 <.2 <5 <10 <1000 3 <10 109 574 MW-9 29-Mar-96 <3 <5 484 14 <1 64 32 142 18.5 <.2 47 <2 <10 <1000 1.5 <100 148 264 MW-9 30-Se -96 <10 <10 411 7.7 <1 39 21 115 14 23 <1 <5 <5 132 190 MW-9 24-Mar-97 <3 <5 300 5 <1 49 14 64 6.9 <.2 25 <2 <5 1.8 <100 92 133 MW-9 15-Se -97 <3 <5 351 8.2 <1 69 17 92 19 25 <2 <5 1 161 158 MW-9 30-Mar-98 <3 <5 304 12 <1 66 18 64 11 <.2 192 <2 <5 <1000 <1 <5 50 122 MW-9 21-Se -98 <3 <5 317 6 <1 17.6 15.4 65 8.88 <20 <2 <5 <1 41.4 96 MW-9 22-Mar-99 <3 <5 270 4 16 14 49 5 <.2 <2 <10 <1000 <1 <2 33 1 86 MW-9 20-Se -99 <3 <5 256 5 <1 15 12 43 5 0.65 12 <2 <5<1000 <1 <2 86 MW-9 28-Se -00 <3 <5 208 4 <1 <10 11 35 <5 <.2 <20 <2 <10 <1000 <1 <2 20 54 MW-9 19-Mar-01 <3 <5 232 4 <1 13 9 47 <5 <20 <2 <5 <1 85 MW-9 25-Se -01 <3 <5 264 5 <1 17 13 75 7 <20 <2 <10 <1 38 82 MW-9 20-Mar-02 <3 <5 216 5 <1 12 10 48 <5 <.2 <20 <2 <5 <1000 <1 <2 27 71 MW-9 16-Se -02 <3 <5 193 4 <1 11 12 50 <5 9 <2 <5 <1 25 55 MW-9 12-Mar-03 <10 <10 191 4 <1 <10 10 36 <10 <.2 <10 <10 <10 1200 <10 <2 20 48 MW-9 16-Oct-03 <3 <5 167 5 <1 <5 12 57 <5 14 3 <5 <1 aU 76 MW-9 31-Mar-04 <3 <5 129 3 <1 <5 7 17 <5 <.2 <5 <2 <5 <1000 <1 11 <5 14 MW-9 24-Se -04 <5 <5 133 <5 <2 <5 17 <3 <5 <5 <2 <5 7 33 MW-9 15-Mar-05 <30 <10 <500 3 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-9 20-Se -05 <30 <10 <500 2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-9 23-Mar-06 <30 <10 <500 2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-9 26-Se -06 <30 <10 <500 3 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-9 21-Mar-07 <6 <10 112 2 <1 <10 <10 <10 <10 1 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-9 11-Se -07 <6 <10 103 2.4 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-9 19-Mar-08 <6 <10 <100 2 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-9 23-Se -08 <6 <10 101 2 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 1 <10 MW-9 18-Mar-09 0.2 0.5 94.6 2 0.1 U OT7 3.6 U 0.1 0.03 1.3 0.6 U U 0.1 0.4 1.3 7.6 MW-9 22-Se -09 U 0.2 133 3 0'1 4.1 6 17 2.7 0.04 4 0.4 0.1 0.2 11.6 32 MW-9 23-Mar-10 U 0.3 80.9 1.5 0.1 U 4.9 3.2 U 0.3 U 1.2 0.7 0.1 U U 0.5 1.8 6.3 MW-9 21-Se -10 U U 64.5 1 0'1 U 2.9 1.8 0.1 U 1 0.6 U U 1.1 3.6 MW-9 23-Mar-11 U U 83.5 2 0.07 0.23 5.4 4.1 U 0.22 U 1.4 0.4 U U 0.03 0.54 0.86 10 MW-9 26-Se -11 U 0.26 76.5 2 0.04 U 5.5 4.4 0.19 U 1.4 0.54 U 0.03 1.6 7.2 MW-9 27-Mar-12 U U 80.4 1 0.07 U 5.5 2 U 0.09 U 0.81 U U U 0.16 U 0.86 5.7 MW-9 18-Sep-12 0.11J U 92.4J 2 0.10J 0.99J 5.8J 4.0J U 0.36J U 1.9J 0.21J U U U U 2.7J 11 MW-9 13-Mar-13 U 0.23 106 2 0.12 U 5.6 2.4 U U U 1.2 0.57 U U U U 0.65 10 MW-9 24-Se -13 0.1J U 118 2 U 0.41J 7.2J 4.5J 0.24J U 4.1J 0.27J U U 0.78J 9.4J MW-9 25-Mar-14 0.19J 0.32J 122 2 0.12J 0.48J 5.5J 4.5J 0.35J U 2.4J 0.69J U 0.07J 2.7J 11 MW-9 27-Ma -15 0.10J U 157 2 0.07J 1.2J 6.8J 6.4J U 0.82J U 2.3J 0.45J 0.02J U 0.12J 0.44J 3.4J 16 MW-9 29-Se -15 1.1J U 138 2 0.04J 0.38J 6.9J 3.6J 0.19J U 2.4J 0.39J 0.03J 0.081 1.OJ 10 MW-9 15-Mar-16 0.13J U 105 2 U 0.88J 5.1J 2.5J U U U 1.7J U U U U U U 5.4J MW-9 27-Se -16 U U 96.1J 2 0.25J 0.23J 4.7J 2.4J 0.16J U 1.8J U U U 1.1J 7.1J MW-9 22-Mar-17 U U 137 2 0.18J 2.0J 8.4J 6.6J U 0.86J U 3.0J U U U 0.11J 0.17J 4.6J 18 MW-9 28-Se -17 U 0.18J 393 6 0.84J 10 10 37 6.8J U 8.7J 0.71J U 0.84J 30 128 MW-9 14-Mar-18 U 0.17J 275 4 0.19J 0.19J 11 4.4J U 0.09J U 3.8J U U U U U 0.38J 14 MW-9 20-Sep-18 0.14J 0.22J 358 4 0.38J 0.22J 23 4.2J 0.03J U 4.2J 0.42J U U 0.22J 19 Page 7 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 2 d o 2 o- E to c E w E aU E O @ UU a o p v Z mM > ws =E Fc vE u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-10 20-Se -94 <5 3630 45 163 155 2 <.2 <5 10 100 MW-10 7-Dec-94 <3 <5 3400 10 30 74 53 135 75 <.2 <5 <10 143 1100 MW-10 24-Feb-95 <3 <5 5 19 32 31 77 51 <.2 <5 <10 59 524 MW-10 16-Mar-95 <3 <5 1910 6 13 33 25 57 31 <.2 <20 <5 <10 3 67 399 MW-10 31-Jul-95 <3 <5 1340 4 4 45 28 72 5 0.38 <20 <5 <10 <100 <10 49 795 MW-10 29-Mar-96 <3 <5 1370 4 1.1 <10 27 27 0.64 <20 <2 <10 <100 <1 40 175 MW-10 30-Se -96 <10 <10 574 1.46 3.4 6 22 17 7 <.2 <10 <10 <5 <5 26 133 MW-10 24-Mar-97 <3 <5 3900 2.37 <1 11 18 <10 <5 <.2 <20 <2 <5 <100 <1.3 <100 34 129 MW-10 15-Se -97 <3 <5 4170 <1 2 8 15 <10 7 <20 <2 <5 <1 8 104 MW-10 30-Mar-98 <3 <5 4870 <2 13 20 14 9 <.2 <20 15 <5 <1 <5 13 139 MW-10 I 21-Se -98 <3 1 6 15210 <1 1 1.67 <10 121.61 24 1 19.93,23 1 5 1 12.6 1 <1 17.9 119 MW-10 22-Mar-99 <3 <5 590 <2 14 10 <.2 5 <10 <100 <1 <10 52 MW-10 20-Se -99 <3 <5 <2 <1 <5 10 <5 <.2 12 5 <5 <100 <1 3 6 75 MW-10 28-Se -00 <3 <5 1300 <2 <1 <10 <10 11 <5 <.2 <20 7 <10 <100 <1 <2 <10 70 MW-10 19-Mar-01 <3 <5 1480 <2 1 <10 13 <5 <20 9 <5 <1 <10 81 MW-10 25-Se -01 <3 <5 1900 <2 <5 9 13 7 <20 6 <10 <1 11 112 MW-10 22-Mar-02 <3 8 0 <2 <1 <10 7 <10 <5 <.2 <20 20 <10 <100 <1 <2 <10 29 MW-10 16-Se -02 <3 <5 2540 <2 <1 <5 10 6 <5 16 9 <5 <1 5 19 MW-10 12-Mar-03 <10 <10 3060 <2 <1 <10 11 13 <10 <.2 18 20 <10 1200 <10 3 12 45 MW-10 16-Oct-03 <3 11 3300 <2 1 <5 12 30 13 22 34 <5 7 19 MW-10 30-Mar-04 <3 10 2911 <2 <1 <5 7 16 <5 <.2 16 28 <5 <1000 <1 2 <10 <10 MW-10 24-Se -04 <5 <5 256M <5 <2 <5 AW 17 6 17 9 <2 <5 13 53 MW-10 15-Mar-05 <30 <10 2602 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-10 20-Se -05 <30 <10 2154 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-10 23-Mar-06 <30 <10 2396 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-10 26-Se -06 <30 <10 2242 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-10 21-Mar-07 <6 <10 2199 <1 <1 <10 <10 <10 <10 <.2 <50 10 <10 <1000 <5 <100 <25 17 MW-10 11-Se -07 <6 <10 <1 <1 <10 <10 I <10 <10 <.2 <50 11 <10 <5 <25 <10 MW-10 19-Mar-08 <6 <10 862 <1 <1 <10 73 <10 <10 1 <.2 <50 12 1 <10 <100C <5 I <100 1 <25 <10 MW-10 23-Se -08 <6 <10 1165 <1 <1 <10 114 <10 <10 <.2 <50 <10 <10 <5 1 <25 <10 MW-10 18-Mar-09 0.2 4.5 1469 0.1 0.2 0.4 9.3 5.5 U 1.5 0.04 9.5 9.9 0.1 U 1.7 3 13 MW-10 22-Se -09 0.2 4.7 0.1 0.1 0.3 8.9 4.1 1 U 11 11 0.1 0.4 3.5 7.1 MW-10 23-Mar-10 0.7 3.5 0.1 0.1 0.4 6.8 5.2 U 0.6 U 9.1 11 0.1 U 0.1 1.7 1.6 4.6 MW-10 21-Se -10 U 4.8 0.1 U 0.3 6.8 4 0.8 U 8.3 15 U 0.4 2.4_j 8.2 MW-10 23-Mar-11 0.2 3.7 0.07 0.1 0.28 8.2 2.5 U 0.34 0.09 5.7 8.7 U U 0.54 1.7 j4.8 MW-10 26-Se -11 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS Page 8 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 O 2 d o 2 o- R N c E Q w Q E '- A m E - �' m E E -a U E O U @ a o U d a o U d p c >. U c p - v m J 2 u m '2 Y Z E c 3 M > N a, s w 7 h E E = 10 c F E 3 v C u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-11 20-Sep-94 <5 815 9 48 25 <.2 <5 <10 226 MW-11 7-Dec-94 <3 <5 371 17 30 66 <5 <.2 26 <5 <10 1 295 MW-11 24-Feb-95 <3 <5 640 2 35 25 116 PF6 <.2 44 <5 <10 591 MW-11 16-Mar-95 <3 <5 371 5 16 17 20 55 46 <2 21 <5 <10 <1 36 277 MW-11 31-Jul-95 <3 <5 424 6 <1 40 29 68 52 <.2 21 <5 <10 <1000 <1 <10 26 331 MW-11 29-Mar-96 <3 <5 252 7 <1 <10 31 19 19.4 0.3 <20 <2 <10 <1000 <1 <100 42 112 MW-11 30-Se -96 <10 <10 204 6.15 <1 10 <10 28 25 <.2 12 <10 <5 <5 104 MW-11 24-Mar-97 <3 <5 97 2.99 <1 13.2 14 <10 7.3 <.2 <20 <2 <5 <1000 <1 <100 20 58 MW-11 15-Se -97 <3 <5 133 4.83 <1 14 18 <10 20 <20 <2 <5 <1 75 MW-11 30-Mar-98 <3 <5 98 3 <1 19 14 <1 12 <.2 <20 3 <5 <1000 <1 18 1 78 MW-11 1 21-Sep-98 <3 1 <5 144 2 <1 I <10 14.5 <10 7.26 <20 1 <2 1 <5 <1 <10 36 MW-11 22-Mar-99 <3 <5 68 <2 <1 <10 10 <10 <5 <.2 <20 <2 <10 <1000 <1 <2 <10 26 MW-11 20-Se -99 <3 <5 67 <2 <1 <5 W 7 <5 <.2 <5 <2 <5 <1000 <1 <2 <10 35 MW-11** 28-Se -00 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-11 19-Mar-01 <3 <5 697 rTr <1 21 69 IM 25 4 <5 423 MW-11 25-Se -01 <3 <5 432 10 2 14 86 52 49 <20 3 <10 253 MW-11 20-Mar-02 <3 <5 72 <2 <1 <10 71 6 5 <.2 <20 <2 <5 <1000 <1 <2 8 32 MW-11 29-Oct-02 <3 <5 138 4 <2 <5 78 17 15 6 <2 <5 <1 90 MW-11 13-Mar-03 <10 <10 94 <2 <1 <10 63 10 <10 <.2 <10 <10 <10 1000 <10 <2 16 48 MW-11 18-Oct-03 <3 <5 88 <2 <1 <5 122 5 <5 <5 2 <5 <1 8 37 MW-11 30-Mar-04 <3 <5 77 <2 <1 <5 136 <10 <5 <.2 <10 2 <5 <1000 <1 <2 <10 17 MW-11 24-Se -04 <5 <5 81 <5 <2 <5 104 <3 <3 <5 <5 <2 <5 <5 11 MW-11 15-Mar-05 <30 <10 <500 <2 <1 <10 104 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-11 20-Se -05 <30 <10 <500 <2 <1 <10 98 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-11 23-Mar-06 <30 <10 <500 <2 1 <10 80 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-11 26-Se -06 <30 <10 <500 <2 <1 <10 119 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-11 21-Mar-07 <6 <10 <100 <1 <1 <10 94 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 11 MW-11 11-Se -07 <6 <10 <100 <1 <1 <10 58 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-11 19-Mar-08 <6 <10 <100 <1 <1 <10 77 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 10 MW-11 23-Se -08 <6 <10 <100 <1 <1 <10 24 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-11 18-Mar-09 U 0.7 74.4 0.3 0.2 U 98 1 1 U 0.2 0.05 2.2 0.3 U U 0.1 0.3 7.2 MW-11 22-Se -09 U 0.4 55 0.2 U U 69 0.5 0.2 0.06 1.4 0.4 U U 5.9 MW-11 23-Mar-10 U 0.4 60.7 0.2 U U 90 0.3 U 0.1 U 1.9 1.1 0.1 U U 0.2 MW-11 21-Sep-10 U 0.4 45.5 0.1 U U 62 0.1 0.1 U 1.8 1 U U U 3.6 MW-11 23-Mar-11 U 0.49 59.1 0.11 0.08 U 85 0.74 U 0.08 0.08 2.9 0.79 U U 0.08 0.22 0.36 5.2 MW-11 26-Sep-1 1 U 0.31 48 0.19 0.07 U 13 0.8 0.33 0.1 1.8 U 0.05 0.17 0.79 7.2 MW-11 27-Mar-12 U 0.17 53.2 0.19 0.05 U 18 U U 0.19 U 1.2 U U U 0.08 0.25 U 6.8 MW-11 18-Sep-12 0.08J 0.26J 55.6J 0.16J U U 20 0.23J U 0.14J 0.06J 2.2J U U U U 0.25 0.67J 11 MW-11 13-Mar-13 0.1 0.3 65.7 0.75 0.38 0.44 22 3 U 2.9 U 1 2.5 10.74 U U 10.14 0.25 4.2J 28 MW-11 24-Se -13 0.13J 0.67J 96.6J 0.25J 0.25J U 68 0.52J 0.16J U 2.8,1 0.69J 0.06J J 0.6J 5.4,1 MW-11 25-Mar-14 0.09J 0.66J 65.1J 0.17J 0.07J U 43 0.42J 0.20J U 1.5,1 0.48J U 0.06J 0.90J 3.3,1 MW-11 27-Ma -15 0.05J 0.73J 43.9J 0.07J U U 43 0.36J U 0.11J U 1.0,1 0.40J 0.02J U 0.04J U 0.61J 1.2,1 MW-11 29-Se -15 0.40J 0.86J 443 0.17J 0.18J 0.23J 6.7J 2.5,1 0.99J U 1.0,1 0.36J 0.06J 0.10J U 3.0,1 MW-11 15-Mar-16 0.08J 0.95J 54.8J 0.10J U U 38 0.25J U U U 1.4,1 U U U U U U U MW-11 27-Se -16 0.21J U 78.8J 0.68J 0.33J 0.20J 49 2.6J 2.8,1 U 5.8,1 0.86J U 1.OJ 3.6J 23 MW-11 22-Mar-17 U U 71.8.1 0.24J 0.08J U 49 3.1J U 0.66J U 4.6,1 U U U 0.11J U D.546. 6.0,1 MW-11 28-Se -17 0.08J 0.50J 312 8 9 3.1J 344 23 0.08J 32J 1.2J U 51 30 457 MW-11 14-Mar-18 U 0.40J 47.4J 0.29J 0.17J U 19 1.1,1 U 0.85J U 1.7,1 U U U 0.20J U 1.2J 13 MW-11 20-Sep-18 0.07J 0.33J 74.1 2 0.70J 0.80J 19 6.3,1 7.4 U 3.5J 0.52J U 0.53J 8.1 57 Page 9 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 0 2 d o 2 o- R N c E Q w Q E '- A m E - �' m E E -a U E O U @ a O U d a o U d p c >. U c p - v m J 2 u m '2 Y Z E c 3 M > N d s w 7 h E E = 10 c F E 3 v C > u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-12 20-Se -94 1 1 <5 753 <5 40 19 <5 <.2 <5 <10 97 MW-12 7-Dec-94 1 <3 1 <5 392 3 <5 27 <10 38 <5 <.2 <20 <5 <10 <1 36 150 MW-12 24-Mar-95 <3 <5 378 3 <5 16 <10 35 8 <.2 <20 <5 <10 <1 31 147 MW-12 16-Mar-95 <3 <5 510 3 <5 24 <10 48 <.2 <20 <5 <10 29 203 MW-12 31-Jul-95 <3 <5 333 2 <1 25 <5 25 13 <.2 <20 <5 <10 <100 <1 <10 <25 113 MW-12 29-Mar-96 <3 <5 225 2 <1 <10 <10 15 <5 <.2 <20 <2 <10 <100 <1 <100 15 70 MW-12** 30-Se-96 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-12 15-Sep-97 <3 <5 080 27 <1 169 97 1260 5 68 <2 <5 14 71 1490 MW-12 30-Mar-98 <3 <5 1750 7 <1 46 7 194 U0.36 <20 <2 <5 3 <5 72 315 MW-12 21-Se -98 <3 <5 1080 <4 <1 <10 <5 76 35 2.6 <20 <2 <5 1.22 26.5 127 MW-12 22-Mar-99 <3 <5 703 1 2 1 <1 <10 <5 1 53 1 19 <.2 1 <20 1 <2 1 <10 <1000 <1 <2 16 1 82 MW-12 20-Se -99 <3 <5 1490 8 1 14 13 218 66 <.2 8 4 <5 2 2 65 292 MW-12 28-Se -00 <3 <5 1240 4 <1 <10 <10 70 34 <.2 <20 <2 <10 <1000 1 <2 25 93 MW-12 19-Mar-01 <3 <5 975 7 <1 12 13 262 51 <20 3 <5 2 54 247 MW-12 25-Se -01 <3 <5 1310 8 2q 14 13 215 60 <20 4 <10 2 64 247 MW-12 20-Mar-02 <3 <5 613 6 <1 <10 8 82 35 <.2 <20 <2 <5 <100 2 <2 36 161 MW-12 17-Se -02 <3 <5 361 2 <1 <5 <5 54 15 <5 <2 <5 <1 18 66 MW-12 13-Mar-03 <10 <10 425 3 <1 <10 <10 58 17 <.2 <10 <10 <10 1000 <10 <2 95 MW-12 18-Oct-03 <3 <5 139 <2 <1 <5 <5 10 <5 <5 <2 <5 I <1 <5 19 MW-12 30-Mar-04 <3 <5 218 <2 <1 <5 <5 15 <5 <.2 <10 <2 <5 <1000 <1 <2 <10 22 MW-12 24-Se -04 <5 <5 117 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 <5 MW-12 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-12 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-12 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-12 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 1 <.5 <50 <20 <10 <10 <40 <50 MW-12 21-Mar-07 <6 <10 141 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-12 11-Se -07 <6 <10 283 1.6 <1 <10 <10 21 <10 <.2 <50 <10 <10 <5 <25 27 MW-12 19-Mar-08 <6 <10 164 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-12 I 23-Se -08 <6 1 <10 1 215 <1 I <1 <10 <10 <10 I I <10 <.2 <50 I <10 I <10 <5 <25 <10 MW-12 18-Mar-09 U 0.2 187 0.5 0.4 U 1.9 U 0.4 0.09 0.9 U 0.1 U 0.4 0.4 0.7 5.3 MW-12 22-Se -09 U 0.5 711 F 4 Im 4.2 5.2 65 32 U 2.7 1.6 0.6 1.2 20.2 153 MW-12 23-Mar-10 U 0.3 164 0.3 0.1 U 2.9 5 U 0.7 U 0.4 U 0.1 U 0.1 0.2 0.7 3 MW-12 21-Se -10 U U 178 0.2 0.2 U 3.1 0.4 U 0.1 U 1 0.5 U 0.1 U 3.7 MW-12 23-Mar-11 U U 151 0.26 0.34 U 1.2 1.6 U 0.34 0.08 0.54 0.39 U U 0.16 0.24 1 U 3.5 MW-12 26-Se -11 U 0.54 363 2 1 3.2 2.3 35 15 10.16 1.6 2.1 0.36 0.7 F 11.9 63 MW-12 27-Mar-12 0.26 0.17 175 0.34 0.38 U 2.7 1.2 U 1.2 0.1 0.41 0.36 0.06 U 0.19 0.18 0.36 2.5 MW-12 18-Se -12 0.05J U 241 0.38J 0.24J U 4.7J 2.6J U 0.58J 0.09J 1.2J 0.51J U U 0.21J 0.18 0.73J 4.1J MW-12 13-Mar-13 0.05 0.27 205 0.38 0.4 0.18 2.3 2.7 U 0.73 U 1 0.74 U U 0.17 0.18 0.43J 7.8 MW-12 24-Se -13 0.04J 0.6J 334 0.22J .22J U 7.2J 1.6J 0.54J U 2.5J 0.6J 0.05J W 0.63J 4.5J MW-12 25-Mar-14 0.13J 0.71J 241 0.35J 0.26J U 6.9J 2.6J 1.8J U 1.5J 0.91J 0.04J 0.17J 1.2J 4.2J MW-12 27-May-15 0.26J 1.3J 396 0.28J 0.34J 0.28J 15 11 U 4.OJ U 3.8J 0.72J 0.06J U 0.20J 0.22J 2.2J 8.2J MW-12 29-Se -15 0.26J 0.74J 51.7J 0.09J 0.03J U 52 0.42J 0.20J U 1.5J U 0.02J 0.07J U 2.OJ MW-12 15-Mar-16 0.30J U 347 0.16J 0.16J U 4.2J 3.2J U 0.97J U 1.4J U U 1700 0.07J U I0.66J 2.6J MW-12 27-Se -16 0.11J 0.71J 278 0.17J 0.43J 0.16J 14 3.4J 1.6J U 3.3J U U 0.30J 0.70J 12 MW-12 22-Mar-17 0.28J 1.2J 244 0.27J 0.80J 0.42J 66 7.1J U 4.6J U 9.4J U U U 0.86J 0.22J 1.6J 31 MW-12 28-Se -17 U 0.62J 247 0.22J 0.45J U 13 1.2J 0.70J U 2.9J U U 0.25J 0.40J 15 MW-12 14-Mar-18 U 0.26J 189 0.26J 0.36J 0.09J 9.9J 4.8J U 1.5J U 1.8J U U U 0.22J 0.14J 0.40J 10.0 MW-12 20-Se -18 0.03J 0.49J 270 0.21J 0.16J U 5.1 0.54J 0.24J U 1.4J 0.29J U 0.13J I U 6.91 Page 10 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - c d R U) E < m U t U o ' U a n Z N > U y t H c_ Nr NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (I) 2000 O.3 1000 MW-100S 28-Se -00 <3 <5 226 <2 <1 <10 12 <10 <5 <.2 <20 3 <10 1<1000 <1 <2 <10 24 MW-100S 19-Mar-01 <3 <5 208 <2 <1 <10 14 <10 <5 <20 3 <5 <1 <10 18 MW-100S 25-Se -01 <3 <5 317 3 <1 <10 17 30 13 <20 2 <16--= 22 80 MW-100S 20-Mar-02 <3 <5 163 <2 <1 <10 11 3 <5 <.2 <20 3 <5 <1000 <1 <2 <5 <10 MW-100S 16-Se -02 <3 <5 219 <2 <1 <5 12 <5 8 <2 <5 <1 8 33 MW-100S 13-Mar-03 <10 <10 100 <2 <1 <10 <10 12 <10 <.2 <10 <10 <10 1000 <10 <2 11 44 MW-100S 17-Oct-03 <3 <5 147 <2 <1 <5 4 <5 11 8 <5 <1 <5 13 MW-100S 30-Mar-04 <3 <5 238 <2 <1 <5 <10 <5 <.2 10 7 <5 <100Q <1 2 <10 <10 MW-100S 24-Se -04 <5 <5 231 <5 <2 <5 N <3 8 <5 <2 <5 <5 <5 MW-100S 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-100S 20-Se -05 <30 <10 <500 <2 <1 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-100S 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-100S 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-100S 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-100S 11-Se -07 <6 <10 288 <1 <1 <10 11 <10 <10 <.2 <50 <10 <10 <5 <25 23 MW-100S 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <100Q <5 <100 <25 <10 MW-100S 23-Se -08 <6 <10 219 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 16 MW-100S 18-Mar-09 U U 18.6 0.4 0.1 1.3 0.3 1.6 U 1 0.03 0.3 U U U 0.1 0.2 1.6 5.7 MW-100S 22-Se -09 0.1 0.7 220 0.4 0.1 0.7 7.3 3.2 1.3 0.09 2.7 1.9 0.1 U 1.8 17 MW-100S 23-Mar-10 U 0.3 164 0.9 0.1 U 0.8 3.2 U 2.8 U U U 0.1 U 0.1 0.5 3.3 13 MW-100S 21-Se -10 U 0.3 100 0.2 0.2 U 0.8 0.1 U 2.2 1.4 0.1 U 0.4 5.7 MW-100S 23-Mar-11 U U 35.7 0.17 0.07 0.29 0.47 1 U 0.12 U 0.79 0.36 U U 0.07 0.41 U 3.6 MW-100S 26-Se -11 U 1.1 368 0.11 0.08 U 2.4 0.18 U 3.7 2.5 U 0.04 0.74 25 MW-100S 27-Mar-12 U U 15.6 0.19 0.04 0.1 0.14 U U 0.06 U U U U U 0.04 U U 1.9 MW-100S 18-Sep-12 0.13J 0.62J 157 0.6J 0.11J 2.1J 2.8J U 2.2J 0.11J 2.2J 0.84J U U 0.14J U 3.OJ 22 MW-100S 13-Mar-13 U U 10.7 0.36 0.03 0.57 0.1 0.86 U 0.34 U 0.43 0.26 U U 0.11 U 0.19 5.2 MW-100S 24-Se -13 0.05J 0.13J 35.8J 0.53J 0.18J 1.1J 0.46J 1.6J 1.2J U 1.2J 0.39J U 0.191 2.4J 9.7J MW-100S 25-Mar-14 0.08J U 12.3J 0.63J 0.06J 0.86J 0.26J 0.92J 1643 0.68J U U 0.111 U 0.06J 1.3J 9.3J MW-100S 28-Ma -15 0.19J U 7.3J 0.31J 0.09J 0.29J 0.05J 0.36J U 96J 0.75J U 0.94J U 0.08J U 0.09J U U 13 MW-100S 30-Sep-15 0.09J 0.21J 59.6J 0.35J 0.09J 0.61J 1.9J 0.77J 760 0.35J U 2.0, 0.91J 0.02J 0.04J 0.51J 7.2, MW-100S 16-Mar-16 0.36J U 11.2J 0.49J 0.12J 1.4J 0.20J 0.86J U 898 0.63J U 0.95J U U U 0.05J U U 9.11 MW-100S 28-Se -16 0.08J U 97.4J 2 0.21J 3.5, 4.4, 8064 5.8, U 3.2, 0.65J U 4.9J 43 MW-100S 23-Mar-17 U U 23.1J 0.63J 0.05J 0.77J 0.35J 1.2J U 2242 1.4J U 0.56J U U U 0.16J 0.07J 1.4J 7.6J MW-100S 27-Se -17 0.11J 0.54J 70.3J 0.85J 0.18J 1.9J 0.89J 2.3J 4039 2.5J U 1.3J 0.84J U U U 2.9J 15 MW-100S 15-Mar-18 U 0.19J 26.3J 0.62J 0.14J 1.4J 0.59J 1.8J U 2845 1.8J U 0.76J U U U 0.09J U 2.4J 11 MW-100S 24-Se -18 0.47J U 6.8J 0.40J U U U 0.26J U U U 0.26J 0.29J U U U U 2.0J MW-100D 28-Se -00 <3 <5 1090 64 73 <.2 <20 5 <10 <100 <2 75 292 MW-100D 19-Mar-01 <3 <5 374 6 1 30 29 35 <20 2 <5 1 35 150 MW-100D 25-Se -01 <3 <5 231 <2 1 11 14 10 <20 3 <10 <1 12 103 MW-100D 20-Mar-02 <3 <5 161 3 <1 13 <5 12 15 <.2 <20 <2 <5 <100 <1 <2 17 62 MW-100D 16-Se -02 <3 <5 224 <2 <1 <5 10 5 <5 <2 <5 <1 6 30 MW-100D 13-Mar-03 <10 <10 200 <2 <1 <10 12 <10 <10 <2 <10 <10 <10 <1000 <10 <2 <10 10 MW-100D 17-Oct-03 <3 <5 125 3 <1 12 <5 14 12 <10 2 <5 <1 18 61 MW-100D 30-Mar-04 <3 <5 95 <2 <1 6 <5 <10 6 <.2 <10 <2 <5 <1000 <1 <2 <10 25 MW-100D 24 Se -04 <5 <5 28 <5 <2 <5 1 <5 <3 <3 <5 <5 <2 1 <5 <5 <5 MW-100D 15-Mar-05 <30 <10 <500 <2 <1 <10 F99 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-100D 20-Se -05 <30 <10 <500 <2 <1 <10 15 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-100D 23-Mar-06 <30 <10 <500 <2 <1 <10 15 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-100D 26-Se -06 <30 <10 <500 <2 <1 <10 17 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-100D 21-Mar-07 <6 <10 307 <1 <1 <10 18 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-100D 11-Se -07 <6 <10 304 <1 <1 <10 19 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-100D 19-Mar-08 <6 <10 321 <1 <1 <10 19 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-100D 23-Se -08 <6 <10 426 <1 <1 <10 20 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-100D 18-Mar-09 0.8 4.5 423 0.3 0.1 U 18 1.2 U 0.1 0.06 7 5.9 0.1 U U 1 1.3 2.4 MW-100D 22-Se -09 0.8 4.1 388 0.2 U U 17 0.7 0.2 0.1 5.8 4.6 0.1 U 1.1 3.1 MW-100D 23-Mar-10 U 3.7 374 0.2 0.3 U 15 1.2 U 0.1 U 4.4 6.1 0.1 U U 0.6 0.6 3.7 MW-100D 21-Se -10 U 5.1 401 0.2 U U 16 0.5 U U U 7.2 9 U U 0.9 1.6 MW-100D 23-Mar-11 0.17 4.2 381 0.2 0.17 0.27 17 2.3 U 0.16 0.08 5.9 4.7 U U U 1 1.1 5.9 MW-100D 26-Se -11 0.42 3.7 391 0.18 0.04 U 15 1.3 1 10.05 0.1 5.8 3.4 U U 1.3 1.7 MW-100D 27-Mar-12 0.28 3.5 395 0.2 0.38 0.28 14 0.68 U 0.2 U 5.7 4 0.06 U U 1.6 0.94 1.8 MW-100D 18-Sep-12 0.34J 0.39J 505 0.2J U U 18 1.2,1 U 0.16J 0.05J 8.1,1 4.J U U U 1.6 0.88J 6.6J MW-100D 13-Mar-13 0.83 4.8 464 0.16 0.06 0.29 15 1.5 U 0.18 U 8.4 8 U U U 1.6 0.69J 3.7 MW-100D 24-Se -13 1J 3.4,1 526 0.09J U 0.08J 14 1.3,1 0.08J U 7.1,1 4.4J U U 0.38J 2.2,1 MW-100D 25-Mar-14 0.52J 3.5,1 397 0.13J 0.05J U 11 0.83J 0.13J U 5.4,1 5.5,1 U 0.03J 1.1J 2.8,1 MW-100D 27-Ma -15 0.28J 2.7,1 342 0.11J U U 10 0.59J U 0.17J U 4.6,1 4.2,1 U U U 0.67J 1.OJ 4.6J MW-100D 29-Se -15 0.19J 1.8,1 232 0.10J U U 9.9J 0.86J U U 4.6J 3.9,1 U U 0.58J 1.3,1 MW-100D 15-Mar-16 0.81J 2.8J 344 0.13J U U 10.0 0.92J U U U 4.9,1 4.2,1 U U U 0.11J 1.3J U MW-100D 27-Se -16 0.46J 2.8,1 236 0.16J 0.10J 0.09J 8.6J 0.95J 0.17J U 5.5, 4.9, U U U 2.4, MW-100D 22-Mar-17 0.26J 1.9J 212 0.09J U U 7.4J 0.61J U U U 4.2,1 4.1J U U U 0.22J U 2.8,1 MW-100D 28-Se -17 0.41J 3.8, 278 0.24J 0.49J 0.28J 7.9J 1.0, 0.23J U 5.2, 3.9, U U .81J 9.4J MW-100D 14-Mar-18 0.15J 1.9J 257 U 0.13J U 7.8J 1.6J U 0.09J U 4.8,1 4.7J U U U 0.28J U 4.6,1 MW-100D 20-Sep-18 0.14J 2.5,1 335 0.16J 0.15J 0.18J 10 0.96J 0.20J U 5.9,1 U U U 0.42J 4.4,1 Page 11 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - O d E R U) c E C w E E O U OV a M U pm O Z N 4)2 U) wy =LE H vE � u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (I) 2000 O.3 1000 MW-101D 28-Se -00 <3 <5 43 <2 <1 <10 <10 <5 <.2 <20 <2 <10 1600 <1 <2 <10 25 MW-101D 19-Mar-01 <3 <5 26 <2 <1 <10<10 <5 <20 <2 <5 <100 <1 <10 13 MW-101D 25-Se -01 <3 <5 31 <2 <1 <10<10 <5 <20 <2 <10 <1 6 10 MW-101D 22-Mar-02 <3 <5 <5 <2 <1 <10 1<5r 15 <5 <.2 <20 <2 <10 <100 <1 <2 <10 <10 MW-101D 16-Se -02 <3 <5 53 <2 <1 <10 15 11 6 <2 <5 <1 17 32 MW-101D 12-Mar-03 <10 <10 14 <2 <1 <10 <10 <10 <.2 <10 <10 <10 <100 <10 <2 <10 <10 MW-101D 16-Oct-03 <5 <5 <2 <1 <5 <2 <5 <5 <2 <5 <1 <5 8 MW-101D 30-Mar-04 3 <5 <10 <2 <1 <5 <10 <5 <.2 <10 <2 <5 <100Q <1 <2 <10 14 MW-101D 24-Se -04 <5 <5 <10 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 <5 MW-101D 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-101D 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-101D 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-101D 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-101D 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-101D 11-Se -07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-101D 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-101D 23-Se -08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-101D 18-Mar-09 0.2 0.4 3.1 U 0.2 U 0.1 0.8 U 0.1 U 0.4 U U U U 6.2 1 MW-101D 22-Se -09 0.2 U 2.7 U U U 0.1 0.4 0.1 U 0.3 U U U 1.5 2.1 MW-101D 23-Mar-10 U U 2.9 U 0.1 U U 0.6 U 0.1 U U U U U 0.2 1.2 1.1 MW-101D 21-Sep-10 0.5 0.9 3.1 0.1 0.1 U U 1.5 0.1 U 0.4 3.4 U U 1.2 4 MW-101D 23-Mar-11 0.16 0.28 2.6 U 0.08 U 0.04 1.4 U 0.12 0.06 0.3 0.44 U U 0.08 0.76 1.1 2.2 MW-101D 26-Se -11 U 0.46 2.9 U 0.43 U U 2.1 110.06 U 0.43 0.36 U U 1.5 2.3 MW-101D 27-Mar-12 0.2 U 2.6 U 0.21 U U 0.57 U U U U U U U U 0.28 0.86 2.4 MW-101D 18-Se -12 0.68J 0.15J 4.1,1 U 0.04J U 0.15J 6.0,1 U U U 29.5J U U U U 0.28 1.3J 9.7J MW-101D 13-Mar-13 10.52, U 2.5 U 0.07 U 0.04 0.58 U U U 0.35 0.28 U U U 0.28 0.84J 2.9 MW-101D 24-Se -13 0.2J 2.6,1 U U 0.06J 0.03J 0.72J 0.05J U 2.5,1 0.41J U 0.16J 0.9J 3.7J MW-101D 25-Mar-14 11.0,1 10.48J 3.3,1 U 0.08J U U 0.091 0.05J U U 0.27J U U 1.7J 2.5,1 MW-101D 27-Ma -15 10.51JI U 3.1,1 U 0.02J U 0.03J 0.53J U 0.05J U 0.38J 0.44J 0.02J U 0.06J 0.16J 0.94J 1.4J MW-101D 29-Se -15 10.38J 0.42J 4.4J U 0.08J U 0.05J 0.60J 0.09J U 0.58J 0.32J 0.02J 0.11J 0.73J 1.5,1 MW-101D 15-Mar-16 10.84J U 3.9,1 U 0.07J 0.63J U 0.50J U U U 0.74J U U U U 0.07J U 2.4J MW-101D 21-Se -16 U 4.3J U 0.19J U 0.04J 0.79J 0.06J U 0.56J U U 0.10J 10.72J 4.0,1 MW-101D 22-Mar-17 11.2,1 U 4.OJ U 0.10J U U 0.48J U U U 0.58J U U U U U 0.67J 3.0,1 MW-101D 28-Se -17 10.39J 0.30J 6.1,1 U U U U 0.46J U U 0.74J U U U 1.2J 2.2,1 MW-101D 14-Mar-18 10.38J U 6.1,1 U 0.16J U U 0.72J U U U 0.62J U U U U U 0.30J 3.9,1 MW-101D 20-Se -18 0.20J 0.10,11 8.3,1 1 U 10.09J U 0.07J 0.42J I U U 0.72J 0.98J U U 0.42J 2.7,1 MW-102S 28-Se -00 <3 <5 950 1 10 38 14 1 Iti <20 3 <10 1200 <2 41 106 MW-102S 19-Mar-01 <3 <5 268 2 <1 <10 23 <10 10 <.2 <20 <2 <5 <1000 <1 <10 37 MW-102S 25-Se -01 <3 <5 219 2 <1 <10 27 <10 <5 <20 <2 <10 <1 <5 12 MW-102S 22-Mar-02 <3 <5 208 5 <1 <10 55 <10 11 <.2 <20 2 <10 <100Q <1 <2 <10 49 MW-102S 16-Se -02 <3 <5 164 6 1 <5 127 7 21 7 2 <5 <1 7 49 MW-102S 13-Mar-03 <10 <10 447 4 1 <10 54 <10 28 <.2 <10 <10 <10 <1000 <10 4 11 47 MW-102S 16-Oct-03 <3 <5 387 3 2 6 21 10 37 <5 3 <5 <1 22 57 MW-102S 31-Mar-04 <3 <5 338 2 2 <5 38 7 32 <.2 <5 2 <5 <1000 1 17 10 39 MW-102S 24-Se -04 <5 <5 166 <5 <2 <5 49 <3 5 <5 <5 <2 <5 <5 12 MW-102S 15-Mar-05 <30 <10 <500 <2 1 <10 83 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-102S 20-Se -05 <30 <10 <500 <2 1 <10 95 <200 12 <.5 <50 <20 <10 <10 <40 <50 MW-102S 23-Mar-06 <30 <10 <500 <2 1 <10 124 <200 <10 <.5 <50 <20 <10 <100Q <10 <100 <40 <50 MW-102S 26 Se -06 <30 <10 <500 <2 <1 <10 162 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-102S 21-Mar-07 <6 <10 155 <1 <1 <10 147 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 18 MW-102S 11-Se -07 <6 <10 167 <1 <1 <10 172 <10 <10 1 <.2 1 <50 1 <10 <10 <5 1 <25 <10 MW-102S 19-Mar-08 <6 <10 192 <1 <1 <10 191 <10 <10 <.2 <50 <10 <10<1000 <5 <100 <25 12 MW-102S 23-Se -08 <6 <10 280 <1 <1 <10 232 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-102S 18-Mar-09 0.1 1.3 220 0.1 0.3 U 221 1 U 1.6 0.03 2 U 0.1 U 0.7 1.4 0.7 4.1 MW-102S 22-Se -09 0.1 1.7 225 0.1 0.2 U 202 0.4 1.7 0.04 1.7 0.3 U 0.5 0.8 4.8 MW-102S 23-Mar-10 U 1.5 162 0.1 0.4 U 169 0.9 U 2.1 U 1.1 0.4 0.1 U 0.3 3.6 0.5 7.6 MW-102S 21-Sep-10 0.7 1.6 199 0.1 0.1 U 176 0.2 1.9 U 2 0.8 0.1 0.3 0.3 3.3 MW-102S 23-Mar-11 pm.5 1 1.2 264 0.23 0.22 0.38 180 2.4 U 9 0.12 1.7 0.88 0.04 U 0.67 1.6 1.5 9 MW-102S 26-Se -11 U 1.1 282 0.08 0.4 U 173 0.631, 11 1.3 U 2.1 0.56 U 0.51 1 10.64,4 MW-102S 27-Mar-12 U 0.63 270 U 0.11 U 148 0.35 U 0.73 U 1.8 0.52 U U 0.6 0.58 U 3.6 MW-102S 18-Se -12 0.12J 1.6,1 320 0.12J 0.25J U 202 0.53J U 1.5,1 0.04J 3.4,1 0.29J U U 0.38J 0.58 U 6.4J MW-102S 13-Mar-13 0.05 0.71 243 0.08 0.11 U 116 0.74 U 1.4 U 2.5 0.57 U U 0.36J 0.58 0.75J 6.9 MW-102S 24-Se -13 0.14J 1.4J 204 0.12J 0.47J I U 172 1.1,1 5.5,1 U 4.4,1 0.5,1 U 0.17J 0.42J 12 MW-102S 25-Mar-14 0.08J 1.4J 235 0.10J 0.30JI U 171 0.43J 1.2,1 U 2.3,1 0.53J U 0.30J 1.OJ 5.3,1 MW-102S 27-Ma -15 0.06J 1.6,1 168 0.53J 0.48J U 117 0.30J U 2.9,1 U 2.OJ 0.99J 0.01J U 0.33J 5.4,1 0.69J 12 MW-102S 29-Se -15 0.18J 1.7,1 256 0.63J 1 0.96J 171 3.6,1 32 0.06J 2.2,1 0.96J 0.05J 0.53J 5.1J 61 MW-102S 15-Mar-16 0.08J 1.8,1 180 0.50J 0.81J U 110 0.94J U 6.1 U 2.1J 0.98J U U 0.27J 6.9,1 1.7J 11 MW-102S 27-Se -16 0.21J 1.5,1 329 1 2 1.3J 142 4.1J 40 0.06J 1.9J 1.2J 0.08J 0.61J 7AJ 54 MW-102S 22-Mar-17 U 1.1,1 311 0.14J 0.24J U 119 0.22J U 0.08J U 1.OJ U U U U 7.0,1 U 9.8J MW-102S 28-Se -17 U 1.4,1 349 0.16J 0.26J 0.16J 82 0.17J 1.OJ U 1.OJ U U U 0.49J 1.7, MW-102S 14-Mar-18 0.10J 1.2J 408 0.15J 0.51J U 34 0.60J U 0.95J U 1.6J U U U U 0.81,1 U 9.2,1 MW-102S 20-Se -18 0.08J 1.1,1 479 0.24J 0.43J 0.31J 23 1.3,1 4.6,1 U 1.4,1 0.85J U 0.12J JLI.2 13 Page 12 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 .o. 0 d o a M c E Q c Q E m m E U o U @ o U C °- U p m U c o v a10i J o o Z M m M > COto w F j c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 O.3 1000 MW-103S 28-Se -00 <3 <5 881 20 <1 41 23 135 39 0.88 <20 2 <10 11800 2 236 299 MW-103S 19-Mar-01 <3 <5 900 23 <1 38 19 168 9 0.23 <20 3 <5 <100 <10 266 343 MW-103S 25-Se -01 <3 <5 534 13 <1 20 11 74 <20 <2 <10 118 188 MW-103S 22-Mar-02 <3 <5 307 10 <1 13 7 44 12 <.2 <20 <2 <10 1200 <1 <2 64 104 MW-103S 16-Se -02 <3 <5 206 <1 11 31 7 <5 <2 <5 <1 39 56 MW-103S 13-Mar-03 <10 <10 209 <1 10 <10 39 <10 <.2 <10 <10 <10 1000 <10 <2 47 79 MW-103S 18-Oct-03 <3 <5 84 <2 <1 <5 <5 5 <5 <5 <2 <5 <1 7 14 MW-103S 30-Mar-04 <3 <5 86 <2 <1 <5 <5 <10 <5 <.2 <10 <2 <5 <100 <1 <2 <10 <10 MW-103S 24-Se -04 <5 <5 77 <5 1 <2 1 <5 <5 4 <3 <5 <5 1 <2 <5 7 10 MW-103S 15-Mar-05 <30 <10 <500 1. 4 <1 <10 <200 13 <.5 <50 <20 <10 <1000 <10 <100 56 68 MW-103S 20-Se -05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-103S 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-103S 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-103S 21-Mar-07 <6 <10 <100 1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-103S 11-Se -07 <6 <10 <100 1.5 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 16 MW-103S 19-Mar-08 <6 <10 <100 1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 15 MW-103S 23-Se -08 <6 <10 188 4 <1 <10 <10 19 <10 <.2 <50 <10 <10 <5 <25 50 MW-103S 18-Mar-09 U 0.2 83 1 0.1 0.2 2.7 2.8 U 0.8 U 0.3 U U U 0.1 0.2 3.7 8 MW-103S 22-Se -09 0.1 1.4 268 E 6 4.3 28 14 0.18 2.6 0.4 0.1 0.6 38 89 MW-103S 23-Mar-10 U 0.2 105 2 0.2 1.4 1.3 8 U 2.5 U 0.2 U 0.1 U 0.1 0.6 9.9 23 MW-103S 21-Se -10 U 0.3 103 2 0.2 1.4 1.5 8.1 2.5 U 0.8 0.5 0.1 0.1 10.2 21 MW-103S 23-Mar-11 0.3 0.45 157 3 0.35 2.6 2.1 12 U 3.6 0.12 1.2 0.49 0.07 U 0.2 1.1 14.7 29 MW-103S 26-Se -11 U 0.33 92 0.63 U U 1.8 2.6 0.58 U 0.69 U U U 2.6 7.3 MW-103S 27-Mar-12 0.7 U 193 1 0.09 0.17 1.4 1.8 U 0.33 U 0.2 U U U U 0.17 1.4 8.3 MW-103S 18-Se -12 0.11J 0.29J 220 2 0.16J 3.4J 4.2J 16 U 5.1J 0.08J 2.3,1 U U U 0.26J 0.17 18.1J 42 MW-103S 13-Mar-13 0.04 0.59 142 1 0.13 0.57 5.7J 4.3 U 1.1 U 0.8 0.32 U U U 0.17 4.2J 12 MW-103S 24-Sep-13 0.25J 0.47J 163 3 0.23J 2.6,1 13.4J 1 12 3.6,1 U 4.8,1 0.59J 0.11J 0.21J 15.5J 29 MW-103S 25-Mar-14 0.12J 0.60J 133 2 0.10J 0.56J L4jj 3.9J 0.98J U 0.67J 1.7J U 0.05J 4.3J 14 MW-103S 27-May-15 0.16J U 96.9J 1 U U 0.45J 2.3,1 U 0.68J U 0.51J U U U 0.04J 0.44J 2.9J 8.4J MW-103S 29-Sep-15 0.17J U 102 0.72J U 0.50J 0.57J 2.3,1 0.41J U 0.87J U 0.01J 0.05J 1.4J 7.8J MW-103S 15-Mar-16 0.06J U 101 1 U 0.48J 0.86J 2.6,1 0.82 J U 0.46J U U U U 2.6J 4.6J MW-103S 27-Sep-16 0.07J U 133 2 0.26J 1.8,1 2.2J 9.3,1 5.2,1 U 1.3,1 U 0.08J 0.20J 13.OJ 27 MW-103S 22-Mar-17 0.09J U 101 1 0.37J U 1.1J 3.4,1 U 0.85J U 0.46J U U U U 10.06J 3.2J 8.4J MW-103S 28-Sep-17 U 1.2,1 220 4 0.66J 3.7J 2 16 8.6, U 2.3, U U 0.3 4-5 56 MW-103S 14-Mar-18 U 1.6J 396 6 0.96J 6.6J 29 U 13 0.49 2.8,1 0.66J 0.30J U 0.81J 0.71J 55 129 MW-103S I 20-Se -18 0.04J 0.22J 95.5 0.88J 0.34J 0.78J 1.1 4.3,1 1 0.92J U 0.48J 0.30J U 0.05J 1 4.3 12 MW-104S 28-Se -00 <3 <5 1290 4 1 1 13 27 38 29 <.2 <20 1 5 <10 <1000 2 3 57 230 MW-104S 19-Mar-01 <3 <5 1120 5 16 28 48 43 <20 5 <5 2 <10 63 386 MW-104S 25-Se -01 <5 PF030 10 2 24 46 82 56 <20 5 <10 3 127 563 MW-104S 22-Mar-02 <3 <5 1140 5 3 15 29 42 42 <.2 <20 6 <10 <1000 3 3 69 338 MW-104S 16-Se -02 <3 <5 520 <2 <1 <5 29 15 8 <5 3 <5 <1 15 75 MW-104S 12-Mar-03 <10 <10 658 <2 1 <10 22 20 13 <.2 <10 <10 <10 <1000 <10 3 24 180 MW-104S 16-Oct-03 <3 <5 431 <2 <1 <5 25 3 <5 7 14 <5 <1 <5 16 MW-104S 30-Mar-04 <3 <5 752 <2 <1 6 28 20 12 <.2 <10 12 <5 <1000 1 4 23 249 MW-104S 24-Se -04 <5 <5 580 <5 <2 <5 1 28 12 5 <5 <5 <2 <5 16 88 MW-104S 15-Mar-05 <30 <10 551 <2 <1 <10 29 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-104S 20-Se -05 <30 <10 556 <2 <1 <10 20 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-104S 23-Mar-06 <30 <10 502 <2 <1 <10 17 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-104S 26-Se -06 <30 1 <10 1 <500 <2 <1 <10 12 <200 <10 <.5 <50 <20 1 <10 I <10 1 <40 1 <50 MW-104S 21-Mar-07 <6 <10 420 <1 <1 <10 12 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 34 MW-104S 11-Se -07 <6 <10 439 <1 <1 <10 15 <10 <10 <.2 <50 <10 <10 <5 <25 12 MW-104S 19-Mar-08 <6 <10 489 <1 <1 <10 12 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-104S 23-Se -08 <6 <10 497 <1 <1 <10 11 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-104S 18-Mar-09 U 1.9 420 0.1 U U 9.6 2.8 U 0.2 0.03 2.5 3.5 U U 0.1 0.8 8 MW-104S 22-Se -09 0.1 1.5 341 0.4 U 0.2 7.4 5.2 2.5 0.06 2 2.9 U 0.1 3.7 75 MW-104S 23-Mar-10 U 0.8 194 0.1 U U 4.9 0.9 U 0.2 U 0.6 1.7 0.1 U U 0.6 0.5 9.3 MW-104S 21-Se -10 U 0.7 135 0.1 0.2 U 3.8 2.4 0.3 U 1 1.7 U U 0.4 5.8 MW-104S 23-Mar-11 0.35 1.6 388 0.82 0.32 1.3 7.3 7.4 U 5.8 0.09 2 3.2 0.04 U 0.36 1.9 7.9 74 MW-104S 26-Se -11 U 1.6 360 0.09 0.08 U 9.6 2.2 0.23 0.05 2.3 2.8 U U 2.8 6.6 MW-104S 27-Mar-12 U 0.83 356 0.09 0.08 U 7.1 0.99 U 0.04 U 1.7 2.8 U U 0.06 0.62 U 17 MW-104S 19-Sep-12 0.05J 0.73J 241 0.1J U U 5.6J 1.7J U 0.44J 0.05J 2.1,1 1.2,1 U U U 0.62 1.OJ 14 MW-104S 19-Sep-12 U 1.8 388 0.08 0.09 U 7.OJ 2.1 U 0.11 U 2.8 4.1 U U U 0.62 U 9.4 MW-104S 25-Se -13 0.07J 0.78J 180 0.12J 0.07J U 4 1.3,1 8060 0.08J U 2.5J 1.5,1 U 0.04J 0.94J 11 MW-104S 25-Mar-14 0.03J 0.35J 303 0.30J 0.26J U I 3.4J 10.61IJ 2487 U I U 1.3J 1 1.3,1 1 U 0.04J 10.35J 37 MW-104S 28-May-15 0.05J U 290 0.47J 0.80J 0.17J 3.3J 3.0,1 U 487 1.5,1 U 2.2,1 0.45J 0.08J U 0.08J 0.23J 0.99J 27 MW-104S 30-Se -15 0.02J U 217 0.43J 0.17J U 2.3J 0.40J 94J 0.05J U 1.6,1 0.36J 0.01J 0.06J 0.33J 8.4J MW-104S 16-Mar-16 0.17J U 179 0.30J 0.38J 0.89J 2.1J 0.99J U 128J 0.08J U 2.8,1 U U U U U U 12 MW-104S 28-Sep-16 U U 207 0.53J 0.42J 0.07J 1.6J 0.92J 768 0.40J U 1.6,1 U U 0.13J W 11 MW-104S 23-Mar-17 U U 257 0.83J 0.41J 0.08J 4.7J 1.9,1 U 6557 1.8,1 U 1.9,1 1.9,1 U U 0.15J 0.41J 2.8J 27 MW-104S 27-Sep-17 U 0.27J 123 0.34J 0.42J U 1.9J 0.76J 1009 0.14J U 1.1,1 U U U U 0.61J 9.0,1 MW-104S 15-Mar-18 0.07J 1.5,1 403 0.71J 0.58J 0.80J 6.2J 4.0,1 U 1"13 4.4J U 3.0,1 3.5,1 U U 0.20J 0.19J 6.5J 41 MW-104S 24-Sep-18 0.19J 0.33J 152 0.13J 0.19J 0.21J 0.60J 1.2,1 229 U I U 1.3J 1 1.1,1 U U U 0.19J 4.9J Page 13 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - O d E R U) c E C w E E O U OV a M U pm O Z N 4)2 U) wy =LE H vE � u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (I) 2000 0.3 1000 MW-104D 28-Se -00 <3 <5 88 <2 <1 <10 49 5 <.2 <20 <2 <10 <100 <1 <2 20 58 MW-104D 19-Mar-01 <3 <5 31 <2 <1 <10<10 <5 <20 <2 <5 <1 <10 <10 MW-104D 25-Se -01 <3 <5 35 <2 <1 <10<10 <5 <20 <2 <10 <1 <5 8 MW-104D 22-Mar-02 <3 <5 30 <2 <1 <10<10 Ir <5 <.2 <20 <2 <10 <100 <1 <2 <10 <10 MW-104D 16 Se -02 <3 <5 31 <2 <1 <5 2 <5 <5 <2 <5 <1 <5 6 MW-104D 12-Mar-03 <10 <10 34 <2 <1 <10 <10 <10 <.2 <10 <10 <10 1000 <10 <2 <10 <10 MW-104D 16-Oct-03 <3 <5 35 <2 <1 <5 2 <5 <5 <2 <5 <1 <5 6 MW-104D 30-Mar-04 9 <5 38 <2 <1 <5 <10 <5 <.2 <10 <2 <5 <100Q <1 <2 <10 <10 MW-104D 24-Se -04 1 <5 <5 39 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 6 MW-104D 15-Mar-05 1 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-104D 20-Se -OS 1 <30 <10 <500 <2 3 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-104D 23-Mar-06 1 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-104D 26-Se -06 1 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-104D 21-Mar-07 1 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-104D 11-Se -07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-104D 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-104D 23-Se -08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-104D 18-Mar-09 0.6 0.7 43.7 U 0.6 U 0.1 1.6 U 0.1 0.03 0.8 0.8 U U U 0.5 3.1 8 MW-104D 22-Se -09 0.1 U 42 U 0.3 U 0.1 1 U 0.2 0.04 0.7 U 0.1 U 0.1 U 1.9 11 MW-104D 23-Mar-10 0.8 0.2 45.3 0.1 0.4 U U 3.4 U 0.1 U U 0.4 0.1 U U 0.3 2.3 12 MW-104D 21-Se -10 U 0.2 48.2 0.1 0.2 U 0.2 0.9 0.1 U 0.8 1 U U 1.6 11 MW-104D 23-Mar-11 U 0.26 49.7 U 0.24 U 0.12 3.1 U 0.11 0.11 0.77 0.43 U U 0.03 4 2.4 8.6 MW-104D 26-Sep-1 1 U 0.59 50.4 U 0.71 U 0.12 4.8 U 0.1 U 0.86 2 U U 2.8 6.6 MW-104D 27-Mar-12 1 0.7 10.28 46.6 U 0.43 U 0.18 1.2 U 0.04 0.06 0.25 0.8 10.05 U U U 2.4 3.3 MW-104D 18-Sep-12 0.32J 54.8J U 0.35J U 0.30J 0.88J U 0.08J 0.09J 1.2J U U U 0.16J U 2.8J 10 MW-104D 13-Mar-13 11.8J 10.41 47.7 U 0.24 U 0.3 1.1 U 0.08 U 1.3 0.72 U U 0.3 U 1.5J 7.9 MW-104D 24-Se -13 10.83JI0.12J 54.1J 0.04J 0.27J U 0.16J 1 0.08J U 2J 0.78J 0.06J 0.23J 1J 14 MW-104D 25-Mar-14 11.6J 10.25J 57.8J U 0.34J U 0.35J 0.83J U U 1.OJ 0.49J U U 0.911 10 MW-104D 27-Ma -15 11.5J 10.19J 58.9J U 0.22J U 0.16J 0.52J U 0.11J U 0.66J 0.81J U U 0.02J 0.56J 0.85J 9.5J MW-104D 29-Se -15 10.58J 0.29J 63.2J 0.05J 0.22J U 0.48J 0.46J 0.04J U 0.87J 0.59J 0.03J U 0.63J 5.9J MW-104D 15-Mar-16 10.92J U 88.2J U 0.15J U 1 AJ 1.OJ U U U 1 AJ 0.82J U U 0.06J 0.33J 1.OJ 5.3J MW-104D 27-Se -16 11.2J U 69AJ U 0.46J U 0.58J 1.OJ U U 1.2J 0.93J U 0.06J U 9.6J MW-104D 22-Mar-17 I 1.OJ U 74.8J U 0.70J U 0.68J 0.69J U 0.08J U 0.89J 0.77J U U U 0.20J U 9.OJ MW-104D 28-Se -17 10.45J 0.22J 75.5J U 0.32J U 0.69J 1.8J 0.32J U 0.95J 0.56J U U 0.93J 13 MW-104D 14-Mar-18 10.64J 0.47J 85.6J U 0.96J U 0.73J 1.3J U 0.11J U 1AJ 0.82J U U U U 0.42J 14 MW-104D 20-Sep-18 0.29J 0.06,11 74.4 1 U 10.44J U 10.89J, 1.OJ 0.06J U 1.1J 0.70J U U 0.17J 13 MW-105S 28-Se -00 <3 <5 994 3 <1 10 19 17 0.41 <20 <2 <10 1600 <1 <2 45 78 MW-105S 19-Mar-01 <3 <5 596 3 <1 <10 14 17 8 0.25 <20 <2 <5 <1000 <1 38 142 MW-105S 25-Se -01 <3 <5 463 <2 <1 <10 11 <10 <5 0.52 <20 <2 <10 <1 14 48 MW-105S 22-Mar-02 <3 <5 307 10 <1 13 7 44 12 <.2 <20 <2 <10 <1000 <1 <2 64 104 MW-105S 17-Se -02 <3 <5 388 <2 <1 <5 10 9 <5 <5 <2 <5 <1 13 30 MW-105S 12-Mar-03 <10 <10 343 <2 <1 <10 18 73 <10 <.2 <10 <10 <10 <1000 <10 <2 15 26 MW-105S 16-Oct-03 <3 <5 260 <2 <1 <5 19 10 <5 <5 <2 <5 <1 9 20 MW-105S 31-Mar-04 <3 <5 296 <2 <1 <5 14 6 <5 <.2 <5 <2 <5 1<1000 <1 15 <5 8 MW-105S I 24-Se -04 <5 <5 337 <5 <2 <5 8 4 1 1 <3 1 <5 1 <5 <2 <5 1 6 1 9 MW-105S 15-Mar-05 <30 <10 <500 <2 <1 <10 18 <200 <10 <.5 <50 1 <20 <10 <1000 <10 <100 <40 <50 MW-105S 20-Se -05 <30 <10 <500 <2 <1 <10 23 <200 <10 <.5 <50 1 <20 <10 <10 <40 <50 MW-105S 23-Mar-06 <30 <10 <500 <2 <1 <10 26 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-105S 26-Se -06 <30 <10 <500 <2 <1 <10 39 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-105S 21-Mar-07 <6 <10 122 <1 <1 <10 43 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-105S 11-Se -07 <6 <10 <100 <1 <1 <10 47 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-105S 19-Mar-08 <6 <10 104 <1 <1 <10 20 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-105S 23-Se -08 <6 <10 <100 <1 1 <10 14 <10 <10 <.2 <50 <10 <10 <5 1 <25 <10 MW-105S 18-Mar-09 U 0.4 101 0.1 0.7 U 26 1 1 U 0.8 0.07 0.4 0.1 0.1 U 0.1 0.8 1 9.1 MW-105S 22-Se -09 U U 78.1 0.1 0.2 U 31 0.6 0.2 0.07 0.2 U 0.1 U 0.7 8.5 MW-105S 23-Mar-10 0.2 0.5 97 0.2 0.1 0.2 3.1 U 1 U U U 0.1 U U 0.2 1.6 7.4 MW-1053** 21-Se -10 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-105S** 23-Mar-11 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS - DNS DNS MW-1053** 26-Sep-1 1 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-105S 27-Mar-12 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-105S 18-Sep-12 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-105S 13-Mar-13 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-105S 24-Se -13 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY MW-105S 25-Mar-14 0.06J U 180 0.84J 0.1OJ 0.06J 0.23J 0.06J 0.05J U U U 0.091 0.17J 5.5J MW-105S 27-Ma -15 0.10J 0.15J 147 0.87J 0.10J 1.8J 0.35J U U 0.22J U 0.29J 0.29J 0.02J U 0.12J 0.23J 0.65J 3.8J MW-105S 29-Se -15 0.47J U 165 0.86J 0.11J 1.3J 2.3J 1.2J 0.50J U 1.3J U 0.01J 0.091 1.8J 6.OJ MW-105S 15-Mar-16 0.18J U 170 0.96J 0.1OJ 0.59J 1.7J 1.1J U 0.62J U 0.80J U U U 0.15J 0.34J 2.3J 3.8J MW-105S 27-Se -16 0.08J U 174 1 0.14J 2.7J 2.8J 3.OJ 1.9J U 2AJ U U 0.17J 5.2J 11 MW-105S 22-Mar-17 U U 183 1 1 0.12J 1.2J 2.2J 1.5J U 0.77J U 1.2J U U U 0.12J 0.24J 2.4J 5.3J MW-105S 28-Se -17 U 0.86J 364 1 0.87J 12 3.3J 12 10 0.11J 10.2J 0.72J U 19.3J 64 MW-105S 14-Mar-18 U 0.28J 195 1 0.27J 2.OJ 2.7J 2.3J U 1.1J 0.16J 1.8J U U U 0.14J U 3.7J 6.6J MW-105S 20-Sep-18 0.08J 0.70J 51.1 3 0.49J 8.7 3.0 9.1J 4.7J 0.32 7.OJ 0.66J U 0.26J 14.0 33 Page 14 of 15 Table 5 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - 3 '0 O d o 2 E M U) c E .0 Q w Q E m E - W m E 3 E U E O L U @ a O U `m a V d ? c M a U p - a m Uf J 2 p m m Y O Z E E W y N d > U) m w N E 3 = 10 L H F E ' v A > u c N NC 2L Standard 1 (1) 10 700 4 (I) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 0 I3 1000 MW-106S 22-Mar-02 <3 <5 267 5 1 18 41 42 <.2 <20 3 <10 1<100 <2 6 146 MW-106S 16-Se -02 <3 <5 125 <2 <5 <5 <5 13 8 <5 <2 <5 <1 16 35 MW-106S 13-Mar-03 <10 <10 60 <2 <1 <10 <10 <10 12 <.2 <10 <10 <10 <100 <10 <2 14 23 MW-106S 17-Oct-03 <3 <5 172 3 1 13 7 34 33 7 4 <5 <1 86 MW-106S 31-Mar-04 <30 <5 122 <2 <1 6 <5 16 18 <.2 <5 <2 <5 <1 3 42 MW-106S 24-Se -04 <5 <5 37 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 <5 MW-106S 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <100 <10 <100 <40 <50 MW-106S 20-Se -05 <30 <10 511 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-106S 23-Mar-06 <30 1 <10 <500 <2 <1 <10 I <10 <200 <10 1 <.5 <50 1 <20 <10 <1000 <10 <100 <40 <50 MW-106S 26-Se -06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-106S 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-106S 11-Se -07 <6 <10 365 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-106S 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-106S 23-Se -08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-106S 18-Mar-09 U 0.8 67.3 0.6 0.1 2.7 1.6 5.8 U 8.9 U 1.4 0.4 0.1 U 0.2 1 15 MW-106S 22-Se -09 0.1 0.9 340 0.1 0.2 U 0.4 5.3 0.5 0.03 2.2 2.5 0.1 U 1.3 3.9 MW-106S 23-Mar-10 U U 62.4 0.1 U U U 0.2 U 0.1 U U 0.4 U U U 0.2 0.4 0.8 MW-106S 21-Se -10 U 1 251 0.1 0.1 U 0.2 2.5 0.1 U 2.2 3.9 U U 0.5 2.8 MW-106S 23-Mar-11 U 0.34 103 0.06 0.04 0.3 0.14 1.5 U 0.42 U 0.7 1.2 U U 0.05 0.78 0.41 4.2 MW-106S 26 Se -11 U U 43.6 U U 0.2 0.1 0.39 U 0.35 U 0.2 0.51 U U 0.03 0.46 0.49 1.1 MW-106S 27-Mar-12 U 0.43 113 U U U 0.08 0.89 0.28 U 0.86 1.6 U 0.03 0.65 1.5 MW-106S 19-Se -12 0.05J 0.41J 68.8J U 0.13J U 0.19J 1.1J U 0.61J 0.03J 1AJ 0.77J U U U 0.46 1.1J 6.4J MW-106S 13-Mar-13 U 0.21 38.3 U 0.05 0.23 0.2 1.5 U 0.79 U 0.88 0.57 U U U 0.46 1.1.1 4.2 MW-106S 25-Se -13 0.12J 0.41J 48 0.05J 0.07J U 0.1J 0.69J 164J 0.21J U 1.3J 1.1J U 0.1J 0.98.1 4.1J MW-106S 25-Mar-14 0.16J 0.39J 24.5J 0.06J U 0.05J 0.19J U 333 0.41J U U 0.53J 0.03J 0.07J 0.45.11 4.3J MW-106S 28-Ma -15 0.06J U 108 0.06J 0.06J 0.20J 0.14J 0.76J U 173J 0.38J U 0.82J 1.2J 0.04J U 0.07J U U 4.OJ MW-106S 30-Se -15 0.06J U 36.6 0.04J 0.02J 0.28J 0.05J 0.48J 65J 0.07J U 0.96J 0.64J U 0.03J U 3.3J MW-106S 16-Mar-16 0.12J U 39.5J 0.08J 0.12J 1.OJ 0.19J 0.88J U 363 0.51J U 0.811 U U U 0.12J 0.16J U 4.3J MW-106S I 28-Se -16 10.14J, 2.OJ 1 401 0.47J 0.32J 1.5J I 1.OJ I 9.7J 1 13936 1 5AJ I U I 4.2J I 5.4J 10.09J 0.23J 5.41 17 MW-106S 23-Mar-17 U U 36.7J 0.08J U U 0.19J 1.OJ U 485AO.6 U 0.44J 0.81J U U U U 0.56J 3.4J MW-106S 27-Se -17 0.12J 1.OJ 411 U 0.45J 0.15J 0.40J 7.3J 308 U 3.OJ 4.8J U U U 0.79J 13 MW-106S 15-Mar-18 U 0.36J 29.1J 0.10J 0.24J 0.33J 0.30J 1.5J U 772 U 0.82J 0.57J U U U U 1.4J 6.1J MW-106S 24-Sep-18 0.16J 0.09J 35.7 0.06J 0.03J 0.26J 0.29J0.72J 314 U 0.82J 0.70J U U U 0.36.1 7.8J Notes: All units are in micrograms per liter (Ng/L). " Damaged well; Did Not Sample (DNS). MW-10 was damaged beyond repair by operations equipment in 2011. < #: Indicates the analyte was analyzed for, but not detected at the associated limit. NE: No standard established J: Estimated value U: Not detected NC 2L Groundwater Protection Standards effective April 2013 (1) - Interim Maximum Allowable Concentration Shaded and bolded concentrations exceed Groundwater Protection Standards. URS is not responsible for data generated or tabulated prior to September 2013. Page 15 of 15 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill a) c d C m CL C m s a) �. Y a) c� o m '+O+ d d E is W O C iL d d E O t cC O d =' O m VN 0L O O d Jv d p s N O O E p i O E O O Ep a }, U C s O O L o v v C E -wm m C p t p G O Q V 0O E ocn N p N N T NC 2B Standard 2,000 NE 3 (AL) 7 (HH) NE 51 (HH) NE 27 (HH) 120 10,000 26,000 100 1.6 (HH) 800 NE 2,000 96 (HH) NE 21 (HH) 0.13 0.1 AL HH HH AL AL HH HH HH HH SW-1 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-1 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-1 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-1 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-1 15-Mar-05 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 SW-1 20-Sep-05 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-1 23-Mar-06 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-1 26-Sep-06 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-1 21-Mar-07 <100 <200 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <3 <13 <3 SW-1 11-Sep-07 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <1 <1 <1 SW-1 19-Mar-08 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <3 <13 <1 SW-1 23-Sep-08 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <3 <13 <1 SW-1 18-Mar-09 1.9 2.5 0.2 SW-1 22-Sep-09 3.3 1.4 SW-1 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U SW-1 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U SW-1 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U SW-1 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U SW-1 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U SW-1 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U SW-1 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U SW-1 24-Sep-13 U U U U U U U U U U U U U U U U 1.5 U U U U SW-1 25-Mar-14 U U U U U U U U U U U U U U U U U SW-1 26-May-15 U U 0.60J U U U U U U U 1.40J U U U U U U SW-1 28-Sep-15 U U U U U U U U U U U U U U U U U SW-1 14-Mar-16 U U U U U U U U U U U U U U U U U SW-1 22-Mar-17 U U U U U U U U U U U U U U U U U SW-1 29-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA SW-1 14-Mar-18 U U U U U U U U U U U U U U U U U SW-1 I 20-Sep-18 I U I I I U I I U I U I U I U I U I U I U I U I U I U I U I U I I U I U I U Page 1 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill as c as as as C G� 0 0 C G� a d _ O d d m cp4 cp4 t d G +� +� C C C N E as O O O O O Q OL as p as V Q d O d O d O d O O O L O N V O ca O J _� O L O L O L O p O O O O (� O L O L O L O L K O i Q� O i m ai d Q O O O O v � � � v Q O O O O t t� d X O U U U _ Q � t� t� t� 0 N v v v v Q 4 t t = 'a m v% Q Q Q Re 0 4 4 4 N 4 4 4 4 M LU N o Cn N c+� 4 r r N r N N M N_ r �+ LU K N r V% i 2 NC 2B Standard NE 2 (HS) 10 (HH) 900 NE NE 100 650 20,000 720 4,000 31 (HH) NE NE NE 12 (HH) 12 (HH) 0.35 130 NE 18 (HH) 2,600 NE HH HH HH HH HH HH HH HH AL SW-1 20-Sep-94 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-1 7-Dec-94 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-1 24-Feb-95 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-1 17-Mar-95 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-1 15-Mar-05 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-1 20-Sep-05 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-1 23-Mar-06 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-1 26-Sep-06 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-1 21-Mar-07 <10 <5 <3 <100 <5 <3 <5 <5 <5 <3 <5 <5 <5 <50 <10 SW-1 11-Sep-07 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-1 19-Mar-08 <10 <5 1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-1 23-Sep-08 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-1 18-Mar-09 0.6 0.3 0.2 SW-1 22-Sep-09 SW-1 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U U SW-1 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U SW-1 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U SW-1 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U SW-1 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U SW-1 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U U SW-1 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U SW-1 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U SW-1 25-Mar-14 U U U U U U U U U U U U U U U SW-1 26-May-15 U 0.50J 3.90 U U U U U U U U U U U U SW-1 28-Sep-15 U U U U U U U U U U U U U U U SW-1 14-Mar-16 U U U U U U U U U U U U U U U SW-1 22-Mar-17 U U U U U U U U U U U U U U U SW-1 29-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA SW-1 14-Mar-18 U U U U U U U U U U U U U U U SW-1 I 20-Sep-18 I U I U I I U I U I I U I U I U I U I U I U I I I I U I U I U I U I I I U I U Page 2of10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill 0 C ca 0 C ca m c = a� c C G� 7 0 +�+ +�+ = N O CL _ E v O _v C s C _d d 0 O 0 0 O Q O � 0 � G O 0 J Q O �+ V t a, cC 0 _O i 0 _O s 0 O L C � 0 O O 4 O 0 Q � N 0 Q v C N _ s .Q � m m C s O s s L 3 _O s U m C Q 0 ,v ,v E � 0 s s z a H N '� _O H > > X Cn 0N N O H t M r N H N .V N r � r T T NC 2B Standard NE NE 1,000 9,600 26,000 12 (AL) NE NE NE 4 (HH) 3.3 11 (AL) 0.076 200,000 8.9 30 (HH) 67,000 0.001 NE 2'4 670 (AL) HH AL AL HH HH (HH) HH HH HH HH SW-1 20-Sep-94 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-1 7-Dec-94 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-1 24-Feb-95 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-1 17-Mar-95 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-1 15-Mar-05 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-1 20-Sep-05 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-1 23-Mar-06 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-1 26-Sep-06 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-1 21-Mar-07 <5 <100 <10 <5 <5 <3 <5 <5 <5 <3 <5 <8 <50 <5 <4 SW-1 11-Sep-07 <1 <100 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <5 <1 <4 SW-1 19-Mar-08 <1 <100 <1 <5 <3 <1 <1 <1 <1 <1 <1 <1 <50 1.1 <5 SW-1 23-Sep-08 <1 <100 <1 <5 <3 <1 <1 <1 <1 <1 <1 <1 <50 <1 <5 SW-1 18-Mar-09 0.6 SW-1 22-Sep-09 SW-1 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U SW-1 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U SW-1 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U SW-1 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U SW-1 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U SW-1 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U SW-1 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U SW-1 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U SW-1 25-Mar-14 U U U U U U U U U U U U U U U SW-1 26-May-15 U U U U U U U U U U U U U U U SW-1 28-Sep-15 U U U U U U U U U U U U U U U SW-1 14-Mar-16 U U U U U U U U U U U U U U U SW-1 22-Mar-17 U U U U U U U U U U U U U U U SW-1 29-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA SW-1 14-Mar-18 U U U U U U U U U U U U U U U SW-1 I 20-Sep-18 I I I U I I U I I I U I U I U I U I U I I U I U I U I U I U I U I U I U Page 3 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill a) c d C m CL C m s a) �. Y a) c� o m '+O+ d d E is W O C iL d d E O t cC O d =' O m VN 0L O O d Jv d p s N O O E p i O E O O Ep a }, v U C s O O L o v C E -wm m C p t p G O 0O Q E V ocn p N N N T NC 2B Standard 2,000 NE 3 (AL) 7 (HH) NE 51 (HH) NE 27 (HH) 120 10,000 26,000 100 1.6 (HH) 800 NE 2,000 96 (HH) NE 21 (HH) 0.13 0.1 AL HH HH AL AL HH HH HH HH SW-2 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-2 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-2 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-2 15-Mar-05 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 SW-2 20-Sep-05 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-2 23-Mar-06 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-2 26-Sep-06 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-2 21-Mar-07 <100 <200 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <3 <13 <3 SW-2 11-Sep-07 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <1 <1 <1 SW-2 19-Mar-08 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <3 <13 <1 SW-2 23-Sep-08 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <3 <13 <1 SW-2 18-Mar-09 0.2 SW-2 22-Sep-09 1.8 2 SW-2 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U SW-2 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U SW-2 23-Mar-11 U U U U U U U U U U U U U U U U 9.8** U U U U SW-2 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U SW-2 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U SW-2 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U SW-2 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U SW-2 24-Sep-13 U U U U U U U U U U U U U U U U 0.9 U U U U SW-2 25-Mar-14 U U U U U U U U U U U U U U U U U SW-2 26-May-15 U U U U U U U U U U U U U U U U U SW-2 28-Sep-15 U U U U U U U U U U U U U U U U U SW-2 14-Mar-16 U U U U U U U U U U U U U U U U U SW-2 26-Sep-16 U U U U U U U U U U U U U U U U SW-2 22-Mar-17 U U U U U U U U U U U U U U U U U SW-2 29-Sep-17 U U U U U U U U U U U U U U U U U SW-2 14-Mar-18 U U U U U U U U U U U U U U U U U SW-2 1 20-Sep-18 1 U U I U U U U U U U U U U U U U U U Page 4 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill as c as as as C G� 0 0 C G� a d _ O d C C d C m cp4 cp4 t d G +� +� N E as O O O O O Q OL as p as ca V O Q d O d O d O d O O O O L O K N V O i J _� O L O L O L O p O O O (� O L O L O L O L O i Q� O m ai d Q O O O O v � � � v Q O O O O t t� d X O U U U _ Q � t� t� t� 0 N v v v v Q 4 t t = 'a m v% Q Q Q Re 0 4 4 4 N 4 4 4 4 M LU N o Cn N c+� 4 r r N r N N M N_ r �+ LU K N r V% i 2 NC 2B Standard NE 2 (HS) 10 (HH) 900 NE NE 100 650 20,000 720 4,000 31 (HH) NE NE NE 12 (HH) 12 (HH) 0.35 130 NE 18 (HH) 2,600 NE HH HH HH HH HH HH HH HH AL SW-2 7-Dec-94 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-2 24-Feb-95 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-2 17-Mar-95 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-2 15-Mar-05 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-2 20-Sep-05 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-2 23-Mar-06 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-2 26-Sep-06 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-2 21-Mar-07 <10 <5 <3 <100 <5 <3 <5 <5 <5 <3 <5 <5 <5 <50 <10 SW-2 11-Sep-07 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-2 19-Mar-08 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-2 23-Sep-08 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-2 18-Mar-09 SW-2 22-Sep-09 SW-2 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U U SW-2 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U SW-2 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U SW-2 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U SW-2 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U SW-2 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U U SW-2 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U SW-2 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U SW-2 25-Mar-14 U U U U U U U U U U U U U U U SW-2 26-May-15 U U U U U U U U U U U U U U U SW-2 28-Sep-15 U U U U U U U U U U U U U U U SW-2 14-Mar-16 U U U U U U U U U U U U U U U SW-2 26-Sep-16 U U U U U U U U U U U U U U SW-2 22-Mar-17 U U U U U U U U U U U U U U U SW-2 29-Sep-17 U U U U U U U U U U U U U U U SW-2 14-Mar-18 U U U U U U U U U U U U U U U SW-2 20-Sep-18 U U U U U U U U U U U U U U U U Page 5 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill 0 C ca 0 C ca m c = a� c C G� 7 ._0 0 +�+ +�+ = N O CL _ Gr s +_ �+ O O s O E cC v O _v C s C _d d 0 O 0 0 O Q O � 0 � G O 0 J Q O �+ V t a, cC 0 _O i 0 _O s 0 O L C � 0 O O 4 O 0 Q � N 0 Q v C N _ s .Q � m m C s O s s L 3 _O s U d C Q 0 ,v ,v E � 0 s s z a H N '� _O H > > X Cn 0N N O H t M r N H N .V N r � r T T NC 2B Standard NE NE 1,000 9,600 26,000 12 (AL) NE NE NE 4 (HH) 3.3 11 (AL) 0.076 200,000 8.9 30 (HH) 67,000 0.001 NE 2'4 670 (AL) HH AL AL HH HH (HH) HH HH HH HH SW-2 7-Dec-94 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-2 24-Feb-95 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-2 17-Mar-95 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-2 15-Mar-05 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-2 20-Sep-05 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-2 23-Mar-06 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-2 26-Sep-06 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-2 21-Mar-07 <5 <100 <10 <5 <5 <3 <5 <5 <5 <3 <5 <8 <50 <5 <4 SW-2 11-Sep-07 <1 <100 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <5 <1 <4 SW-2 19-Mar-08 <1 <100 <1 <5 <3 <1 <1 <1 <1 <1 <1 <1 <50 <1 <5 SW-2 23-Sep-08 <1 <100 <1 <5 <3 <1 <1 <1 <1 <1 <1 <1 <50 <1 <5 SW-2 18-Mar-09 SW-2 22-Sep-09 SW-2 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U SW-2 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U SW-2 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U SW-2 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U SW-2 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U SW-2 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U SW-2 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U SW-2 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U SW-2 25-Mar-14 U U U U U U U U U U U U U U U SW-2 26-May-15 U U U U U U U U U U U U U U U SW-2 28-Sep-15 U U U U U U U U U U U U U U U SW-2 14-Mar-16 U U U U U U U U U U U U U U U SW-2 26-Sep-16 U U U U U U U U U U U U U U U SW-2 22-Mar-17 U U U U U U U U U U U U U U U SW-2 29-Sep-17 U U U U U U U U U U U U U U U SW-2 14-Mar-18 U U U U U U U U U U U U U U U SW-2 1 20-Sep-18 1 U U I U U U U U U U U U U U U U Page 6 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill a) c d C m CL C m s a) �. Y a) c� o m '+O+ d d E is W O C iL d d E O t cC O d =' O m VN 0L O O d Jv d p s N O O E p i O E O O Ep a }, v U C s O O L o v C E -wm m C p t p G O 0O Q V E ocn N p N N T NC 2B Standard 2,000 NE 3 (AL) 7 (HH) NE 51 (HH) NE 27 (HH) 120 10,000 26,000 100 1.6 (HH) 800 NE 2,000 96 (HH) NE 21 (HH) 0.13 0.1 AL HH HH AL AL HH HH HH HH SW-3 20-Sep-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-3 7-Dec-94 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-3 24-Feb-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-3 17-Mar-95 <10 <10 <10 <5 <10 <5 <5 <10 <5 <5 <5 <10 <5 <5 <5 SW-3 15-Mar-05 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <20 <5 <25 <5 SW-3 20-Sep-05 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-3 23-Mar-06 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-3 26-Sep-06 <100 <200 <5 <5 <5 <5 <10 <100 <100 <10 <5 <10 <5 <10 <5 <25 <5 SW-3 21-Mar-07 <100 <200 <3 <3 <3 <3 <10 <100 <100 <5 <3 <5 <5 <5 <3 <13 <3 SW-3 11-Sep-07 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <1 <1 <1 SW-3 19-Mar-08 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <3 <13 <1 SW-3 23-Sep-08 <100 <200 <1 <3 <1 <3 <10 <100 <100 <1 <3 <10 <5 <1 <3 <13 <1 SW-3 18-Mar-09 SW-3 22-Sep-09 2 2.4 SW-3 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U SW-3 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U SW-3 23-Mar-11 U U U U U U U U U U U U U U U U 3.6** U U U U SW-3 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U SW-3 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U SW-3 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U SW-3 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U SW-3 24-Sep-13 U U U U U U U U U U U U U U U U 1.5 U U U U SW-3 25-Mar-14 U U U U U U U U U U U U U U U U U SW-3 26-May-15 U U U U U U U U U U U U U U U U U SW-3 28-Sep-15 U U U U U U U U U U U U U U U U U SW-3 14-Mar-16 U U U U U U U U U U U U U U U U U SW-3 26-Sep-16 U U U U U U U U U U U U U U U U U SW-3 22-Mar-17 U U U U U U U U U U U U U U U U U SW-3 29-Sep-17 U U U U U U U U U U U U U U U U U SW-3 14-Mar-18 U U U U U U U U U U U U U U U U U SW-3 20-Sep-18 U U U U U U U U U U U U U U U U U Page 7 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill as c as as as C G� 0 0 C G� a d _ O d C C d C m cp4 cp4 t d G +� +� N E as O O O O O Q OL as p as ca V O Q d O d O d O d O O O O L O K N V O i J _� O L O L O L O p O O O (� O L O L O L O L O i Q� O m ai d Q O O O O v � � � v Q O O O O t t� d X O U U U _ Q � t� t� t� 0 N v v v v Q 4 t t = 'a m v% Q Q Q Re 0 4 4 4 N 4 4 4 4 M LU N o Cn N c+� 4 r r N r N N M N_ r �+ LU K N r V% i 2 NC 2B Standard NE 2 (HS) 10 (HH) 900 NE NE 100 650 20,000 720 4,000 31 (HH) NE NE NE 12 (HH) 12 (HH) 0.35 130 NE 18 (HH) 2,600 NE HH HH HH HH HH HH HH HH AL SW-3 20-Sep-94 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-3 7-Dec-94 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-3 24-Feb-95 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-3 17-Mar-95 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 <10 SW-3 15-Mar-05 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-3 20-Sep-05 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-3 23-Mar-06 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-3 26-Sep-06 <10 <5 <5 <100 <5 <5 <5 <5 <5 <5 <10 <10 <5 <50 <10 SW-3 21-Mar-07 <10 <5 <3 <100 <5 <3 <5 <5 <5 <3 <5 <5 <5 <50 <10 SW-3 11-Sep-07 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-3 19-Mar-08 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-3 23-Sep-08 <10 <5 <1 <100 <5 <1 <5 <5 <5 <1 <1 <1 <1 <50 <10 SW-3 18-Mar-09 SW-3 22-Sep-09 SW-3 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U U SW-3 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U U SW-3 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U U SW-3 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U U SW-3 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U U SW-3 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U U SW-3 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U U SW-3 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U U SW-3 25-Mar-14 U U U U U U U U U U U U U U U SW-3 26-May-15 U U U U U U U U U U U U U U U SW-3 28-Sep-15 U U U U U U U U U U U U U U U SW-3 14-Mar-16 U U U U U U U U U U U U U U U SW-3 26-Sep-16 U U U U U U U U U U U U U U U SW-3 22-Mar-17 U U U U U U U U U U U U U U U SW-3 29-Sep-17 U U U U U U U U U U U U U U U SW-3 14-Mar-18 U U U U U U U U U U U U U U U SW-3 20-Sep-18 U U U U U U U U U U U U U U U U Page 8 of 10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill 0 C ca 0 C ca m c = a� c C G� 7 ._0 0 +�+ +�+ = N O CL _ Gr s +_ �+ O O s O E cC v O _v C s C _d d 0 O 0 0 O Q O � 0 � G O 0 J Q O �+ V t a, cC 0 _O i 0 _O s 0 O L C � 0 O O 4 O 0 Q � N 0 Q v C N _ s .Q � m m C s O s s L 3 _O s U d C Q 0 ,v ,v E � 0 s s z a H N '� _O H > > X Cn 0N N O H t M r N H N .V N r � r T T NC 2B Standard NE NE 1,000 9,600 26,000 12 (AL) NE NE NE 4 (HH) 3.3 11 (AL) 0.076 200,000 8.9 30 (HH) 67,000 0.001 NE 2'4 670 (AL) HH AL AL HH HH (HH) HH HH HH HH SW-3 20-Sep-94 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-3 7-Dec-94 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-3 24-Feb-95 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-3 17-Mar-95 <5 <10 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <10 SW-3 15-Mar-05 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-3 20-Sep-05 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-3 23-Mar-06 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-3 26-Sep-06 <10 <100 <10 <5 <5 <5 <5 <5 <5 <5 <5 <15 <50 <10 <5 SW-3 21-Mar-07 <5 <100 <10 <5 <5 <3 <5 <5 <5 <3 <5 <8 <50 <5 <4 SW-3 11-Sep-07 <1 <100 <1 <5 <1 <1 <1 <1 <5 <1 <1 <1 <5 <1 <4 SW-3 19-Mar-08 <1 <100 <1 <5 <3 <1 <1 <1 <1 <1 <1 <1 <50 <1 <5 SW-3 23-Sep-08 <1 <100 <1 <5 <3 <1 <1 <1 <1 <1 <1 <1 <50 <1 <5 SW-3 18-Mar-09 SW-3 22-Sep-09 SW-3 22-Mar-10 U U U U U U U U U U U U U U U U U U U U U SW-3 21-Sep-10 U U U U U U U U U U U U U U U U U U U U U SW-3 23-Mar-11 U U U U U U U U U U U U U U U U U U U U U SW-3 26-Sep-11 U U U U U U U U U U U U U U U U U U U U U SW-3 27-Mar-12 U U U U U U U U U U U U U U U U U U U U U SW-3 17-Sep-12 U U U U U U U U U U U U U U U U U U U U U SW-3 13-Mar-13 U U U U U U U U U U U U U U U U U U U U U SW-3 24-Sep-13 U U U U U U U U U U U U U U U U U U U U U SW-3 25-Mar-14 U U U U U U U U U U U U U U U SW-3 26-May-15 U U U U U U U U U U U U U U U SW-3 28-Sep-15 U U U U U U U U U U U U U U U SW-3 14-Mar-16 U U U U U U U U U U U U U U U SW-3 26-Sep-16 U U U U U U U U U U U U U U U SW-3 22-Mar-17 U U U U U U U U U U U U U U U SW-3 29-Sep-17 U U U U U U U U U U U U U U U SW-3 14-Mar-18 U U U U U U U U U U U U U U U SW-3 20-Sep-18 U U U U U U U U U U U U U U U Page 9of10 Table 6 Historical Surface Water Results - VOCs Wilders Grove Landfill Notes: All units are in micrograms per liter (Ng/L). < #: Indicates the analyte was analyzed for, but not detected at the associated limit. NE: No standard established J: Estimated value U: Not detected -: Suspected chloromethane contamination during analysis NA: Not analyzed (Samples collected at the SW-1 location on 9/29/17 were reported missing by the laboratory.) Freshwater aquatic life (AL) or human health (HH) [also known as fish consumption] numeric water quality standards for Class C waters per 15A NCAC 2B .0200, effective May 1, 2007, and NC DWR "Surface Water Quality Standards, Criteria & Protective Values" table (dated September 22, 2017). In the absence of the NC 2B, the EPA NRWQC is presented, and in the absence of the EPA NRWQC, the NC Protective Value is presented. Bold concentrations exceed the NC 2B Surface Water Protection Standards. URS is not responsible for data generated or tabulated prior to September 2013. Page 10 of 10 Table 7 Historical Surface Water Results - Metals Wilders Grove Landfill O C O ° E is N O J °2 lC E N O E _ c Q •U O m w Q E CO - m 00 E m U E E O s U O U a L) c Z E m d N N E R ~ ns > N NC 2B Standard 640 (HH) 10 (HH) 21,000 (AL) 6.5 (AL) 2 (AL) 50 (AL) 4 (HH) 7 (AL) 25 (AL) 46,000 (HH) 5 (AL) 0.06 (AL) 0.47 (HH) NE 50 (AL) SW-1 20-Sep-94 <5 100 <5 <10 <10 <5 <5 <10 52 SW-1 7-Dec-94 <3 <5 87 <1 <5 <10 <10 <10 <5 <20 <5 <10 <1 <25 43 SW-1 24-Feb-95 <3 <5 83 <1 <5 <10 <10 <10 <5 <20 <5 <10 <1 <25 42 SW-1 16-Mar-95 <3 <5 111 <1 <5 <10 <10 <10 <5 <20 <5 <10 <1 <25 60 SW-1 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-1 20-Sep-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-1 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 159 SW-1 26-Sep-06 <30 <10 1 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-1 21-Mar-07 <6 <10 164 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 32 SW-1 11-Sep-07 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry SW-1 19-Mar-08 <6 <10 121 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 109 SW-1 23-Sep-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 169 SW-1 18-Mar-09 U 1.1 120 U 0.1 U 2.9 1.8 0.2 1.8 0.3 0.1 U 0.9 37 SW-1 22-Sep-09 0.1 2 64.9 0.4 0.2 3.5 1.5 11 2.1 0.2 0.1 0.1 12.8 30 SW-1 22-Mar-10 1.1 1.3 47 0.1 0.2 U 1.8 1.7 0.4 1.8 U U U 1.3 70 SW-1 21-Sep-10 U 2.3 1 171 U 0.1 0.1 0.7 1.7 0.4 2.3 5.6 U U 0.6 6.4 SW-1 23-Mar-11 U 1.5 74 U 0.13 0.23 1.6 2.6 1 0.54 2.2 0.5 U 0.05 0.46 96 SW-1 26-Sep-11 U 1.2 80.4 0.13 0.1 1.3 1.7 4.5 3.9 2 0.48 U 0.07 5 35 SW-1 27-Mar-12 U 1.1 32.1 U 0.12 0.22 1.3 1.8 0.21 1.7 U U 0.22 U 53 SW-1 17-Sep-12 0.08J 0.28J 106 U U U 0.86J 1.4J U 2.4J 0.87J U U 0.35J 4.2J SW-1 13-Mar-13 0.3 0.69 26.3 1 U 0.09 U 1.2 0.59 0.17 0.66 U U U 0.35 31 SW-1 23-Sep-13 0.08J 0.68J 37.3J 0.12J U 0.77J 0.6J 3.3J 2.3J 1.4J 0.29J U 0.03J 1.9J 35 SW-1 25-Mar-14 0.07J 1.1J 34.7J U 0.13J U 0.74J 1.3J 0.21J 1.2J 0.24J 0.7J 0.04J 0.56J 68 SW-1 26-May-15 0.08J 1.8J 568 U 0.06J U 12 0.88J 0.23J 4.6J 4.4J 0.01J 0.07J 0.73J 192 SW-1 28-Sep-15 m m m m m m m m I m m m m m m m SW-1 14-Mar-16 0.05J U 75.7J 0.07J U U 4.OJ 1.1J 0.18J 2.2J 0.65J U U U 46 SW-1 26-Sep-16 m m m m m m m m m m m m m m m SW-1 22-Mar-17 U 0.94J 31.01 U 0.06J U 2.3J 1.5J 0.43J 1.8J U U U 0.57J 54 SW-1 29-Sep-17 m m m m m m m m m m m m m m m SW-1 14-Mar-18 U 1.2J 31.11 U 0.09J 0.30J 0.62J 2.2J 0.49J 1.4J U U U 0.78J 58 SW-1 20-Se -18 0.05J 1.2J 45.2 U I 0.10J 0.50J 3.1 2.3J 0.36J 1.9J U U 0.07J 0.32J 49 SW-2 20-Sep-94 <5 66 <5 <10 <10 <5 <5 <10 57 SW-2 7-Dec-94 <3 <5 60 <1 <5 <10 <10 12 <5 <20 <5 <10 <1 <25 57 SW-2 24-Feb-95 <3 <10 15 <1 <5 <10 <10 <10 <5 <20 <5 <10 <1 <25 51 SW-2 16-Mar-95 <3 <10 35 <1 <5 <10 <10 35 <5 <20 <5 <10 <1 <25 35 SW-2 15-Mar-05 <30 <10 800 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-2 20-Sep-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-2 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-2 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 1 <50 SW-2 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 11 SW-2 11-Sep-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 28 SW-2 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 11 SW-2 23-Sep-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 <10 SW-2 18-Mar-09 0.2 0.9 36.6 0.1 0.1 1.7 0.7 4.7 1.8 1.4 0.2 U 0.2 5.1 11 SW-2 22-Sep-09 0.4 0.7 32.3 0.1 U 1.5 1 5.4 4.4 1.5 U 0.1 U 5.8 24 SW-2 22-Mar-10 0.5 1.2 75.1 0.3 0.2 5 3.5 10 12 3 0.4 0.4 U 15.1 47 SW-2 21-Sep-10 U 0.6 38 0.1 U 0.7 0.9 2.8 2.1 1.5 0.4 U U 3.2 15 SW-2 23-Mar-11 0.15 0.3 26.9 U 0.07 0.15 0.34 2.0 0.42 0.57 U U U 0.86 6.7 SW-2 26-Sep-11 0.25 0.9 27.2 0.06 0.05 1.43 0.77 3.9 2.5 1.6 U U U 4.9 13 SW-2 27-Mar-12 0.33 1.2 32.1 U 0.38 4.3 3.4 12 16 3.1 0.24 U 0.12 12.8 SW-2 17-Sep-12 0.34J 0.52J 23.8J U 0.04J 0.48J 0.26J 2.4J 0.72J 1.2J 0.27J U U 1.7J 7.2J SW-2 13-Mar-13 0.28 0.24 29.2 U U 0.51 0.37 2.3 1 0.66 0.25 U U 1.9 11 SW-2 23-Sep-13 0.23J 0.48J 24.5J U U 1.3J 0.68J 3.OJ 1.7J 2.3J 0.27J U U 4J 8.8J SW-2 25-Mar-14 0.48J 0.63J 27.4J U U 0.24J 0.37J 3.1J 0.60J 0.90J 0.39J U U 1.81 8.8J SW-2 26-May-15 0.16J 0.34J 27.3J U 0.05J U 0.43J 1.9J 0.39J 1.OJ 0.24J U 0.02J 1.2J 6.1J SW-2 28-Sep-15 0.31J 0.48J 32.5J 0.05J 0.03J 0.98J 0.71J 3.OJ 1.6J 1.2J 0.58J 0.03J 0.10J 1.2J 8.5J SW-2 14-Mar-16 0.28J 1.1J 55.OJ 0.23J 0.08J 6.2J 2.8J 7.4J 4.6J 3.8J U U 0.1OJ 17.OJ 25 SW-2 26-Sep-16 0.24 J 1.4 J 89.6 J 0.80 J 0.22 J 7.3 J 4.0 J 3.9 J U 0.06 J 0.14 J 19.5 J SW-2 22-Mar-17 0.23J U 29.6J U U 0.20J 0.40J 2.5J 0.90J 0.96J U U U 1.5J 10 SW-2 29-Sep-17 0.20J 1.1J 39.OJ U U 0.82J 1.OJ 2.2J 1.5J 1.1J U U U 2.4J 7.5J SW-2 14-Mar-18 0.20J 0.53J 35.6J U 0.08J 1.OJ 0.69J 3.4J 1.5J 1.2J U U U 3.5J 10 SW-2 20-Se -18 0.17J 1.1J 1 38.5 1 0.15J I 0.10J I 2.2J 1 1.1 5.3J 2.8J 1.4J U U U 6.2 13 Page 1 of 2 Table 7 Historical Surface Water Results - Metals Wilders Grove Landfill O C O ° is E N O J °2 lC E N O E _ c Q U •O m w Q E m - m 00 E R U E E O s U O U a L) c Z E m d fn N E R ~ > N NC 2B Standard 640 (HH) 10 (HH) 21,000 (AL) 6.5 (AL) 2 (AL) 50 (AL) 4 (HH) 7 (AL) 25 (AL) 46,000 (HH) 5 (AL) 0.06 (AL) 0.47 (HH) NE 50 (AL) SW-3 20-Sep-94 <5 202 <5 <10 50 53 <5 <10 41 SW-3 7-Dec-94 <3 <5 41 <1 <5 <10 <5 <20 <5 12 <1 <25 71 SW-3 24-Feb-95 <3 <5 58 <1 <5 <10 <10 11 <5 <20 <5 <10 <1 <25 62 SW-3 16-Mar-95 <3 <10 39 <1 <5 <10 22 11 <5 <20 <5 <10 <1 <25 28 SW-3 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-3 20-Sep-05 <30 <10 <500 1 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-3 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-3 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <50 <20 <10 <10 <40 <50 SW-3 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 12 SW-3 11-Sep-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 <10 SW-3 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 10 SW-3 23-Sep-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 <50 <10 <10 <5 <25 <10 SW-3 18-Mar-09 0.2 0.9 38.4 0.1 U 1.7 0.8 4.6 2 1.4 0.2 U 0.1 5.2 12 SW-3 22-Sep-09 0.5 0.8 48.6 0.2 0.1 2.9 2 7.7 8 2.2 U 0.1 U 9.8 41 SW-3 22-Mar-10 U 0.5 32.5 0.1 0.1 0.3 0.3 2.6 0.6 0.9 U 0.1 U 1.8 8.9 SW-3 21-Sep-10 U 0.5 29.5 U U U 0.5 1.3 0.1 1.2 0.5 U U 0.9 4.5 SW-3 23-Mar-11 0.21 0.27 27.4 U U 0.16 0.4 2.7 0.44 0.58 U U 0.07 0.82 5.1 SW-3 26-Sep-11 0.74 1 28.9 0.09 0.05 1 1.1 0.69 4.7 3 1.6 0.37 U 0.05 4.6 17 SW-3 27-Mar-12 0.49 0.58 28.1 U 0.05 0.96 0.58 3.5 1.4 0.86 U U 0.04 3 9.7 SW-3 17-Sep-12 0.38J 0.82J 38.2J 0.12J 0.06J 2.OJ 1.2J 4.9J 5.3J 1.6J 0.34J U U 5.8J 22 SW-3 13-Mar-13 0.16 0.22 25.7 U U 0.38 0.26 1.7 0.42 0.36 0.3 U U 1.4 9.7 SW-3 23-Sep-13 0.31J 0.92J 24.6J U U 0.86J 0.51J 2.7J 1.2J 4.4J 0.35J U U 2.8J 8.3J SW-3 25-Mar-14 0.28J 0.63J 26.1J 0.03J U 0.18J 0.35J 3.1J 0.64J 0.91J 0.28J U U 1.81 8.2J SW-3 26-May-15 0.14J 0.19J 26.8J U U U 0.40J 1.7J 0.35J 1.0J U U U 1.1J 4.6J SW-3 28-Sep-15 0.26J 0.44J 30.5J 0.04J 0.03J 1.3J 0.77J 3.1J 1.5J 1.OJ 0.28J 0.01J 0.03J 2.OJ 9AJ SW-3 14-Mar-16 0.27J 0.85J 56.6J 0.26J 0.07J 6.OJ 3.01 8.11 4.6J 4.OJ U U 0.13J 14.5J 27 SW-3 26-Sep-16 0.23 J U 22.0 J U U 0.34 J 0.35 J 1.7 J 0.54 J 0.73 J U U U 1.7 J 4.4 J SW-3 22-Mar-17 0.27J U 52.2J 0.04J 0.11J 0.23J 0.64J 3.8J 0.95J 1.2J U U U 1.6J 24 SW-3 29-Sep-17 0.22J 0.79J 32.8J U U 0.44J 0.53J 1.6J 0.44J 0.94J U U U 1.2J 3.8J SW-3 14-Mar-18 0.21J 0.75J 39.3J 0.11J U 1.5J 0.99J 4.1J 2.7J 1.3J U U U 4.6J 14 SW-3 20-Se -18 0.17J 1.2J 37.9 0.13J 0.05J 2.3J 1.2 1 5.2J 2.9J 1.5J 0.19J U U 6.6 12 Notes: All units are in micrograms per liter (pg/L). < #: Indicates the analyte was analyzed for, but not detected at the associated limit. NE: No standard established J: Estimated value U: Not detected m: Data is missing Freshwater aquatic life (AL) or human health (HH) [also known as fish consumption] numeric water quality standards for Class C waters per 15A NCAC 213.0200, effective May 1, 2007, and NC DWR "Surface Water Quality Standards, Criteria & Protective Values" table (dated September 22, 2017). In the absence of the NC 213, the EPA NRWQC is presented, and in the absence of the EPA NRWQC, the NC Protective Value is presented. Shaded and bolded concentrations exceed NC 2B Surface Water Protection Standards. URS is not responsible for data generated or tabulated prior to September 2013. Samples collected on September 29, 2017, from SW-1 were reported missing by the laboratory. Page 2 of 2 Table 8 Current Groundwater Sampling Parameters and Schedule Wilders Grove Landfill Assessment Monitoring Wells: MW-1, 2, 3, 4, 6, 8, 9, 11, 12, 100S, 100D, 101 D, 102S, 103S, 104S, 104D, 105S, and 106S Analytes: Appendix I plus any constituents from Appendix II that were detected in previous event and 1,4 dioxane Frequency: Semi-annual Surface Water: Two locations on Crabtree Creek and one location on perennial stream Analytes: Appendix I and 1,4 dioxane Frequency: Semi-annual Wells: MW-1, 2, 3, 4, 6, 8, 9, 11, 12, 100S, 100D, 101 D, 102S, 103S, 104S, 104D, 105S, and 106S Analytes: Appendix 11 Frequency: Annual (March) MNA Wells: MW-6, 100S, 104S, and 106S Analytes: Nitrate, iron, sulfate, sulfide, methane, ethene/ethane, TOC/BOD/COD, CO2, alkalinity, chloride, hydrogen, and volatile fatty acids Frequency: Semi-annual Corrective Action Monitoring Wells: MW-202S, 202D, 203S, 205S, 205D, 206D, 207S, 207D, 208S, and 208D Analytes: Appendix I, Carbon dioxide, potassium, chloride, manganese, total dissolved solids, and 1,4 dioxane (semi-annual only) Frequency: Quarterly Wells: MW-201S and 204S Analytes: Appendix I and 1,4 dioxane Frequency: Semi-annual Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill d 3 `o y r2 o E fn J a E U E pO n U E E O J £ O J O v E YA F rn Z Y � ° N 0 N o 0 E J c Q Z d _ Z Cl J N CC a d IL u xN ? o WA = rw W rw W rn T x NC2LStandard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.04 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-6 3/28/2012 214 358 77.7 2.5 41 4.9 U 19J 389 1.0 3.2 - 255J U 0.21 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 38.00 0.38 0.02 1.10 MW-6 9/19/2012 156 312 91.2 2.5 37 5.3 U 15J 279 0.2 6.2 1713 U <0.1 <0.07 <0.05 <0.05 0.25 <0.15 <0.07 <0.05 <0.05 31.00 0.31 0.02 1.30 MW-6 3/13/2013 277 238 163.8 2.6 48 5.4 U 28J 354 1.4 9.1 617 U 0.12 0.021 <0.004 <0.007 <0.004 <0.012 <0.01 <0.013 <0.039 38.00 0.40 0.02 0.29 MW-6 9/25/2013 194 100 78.3 2.0 27 5.1 U 19.5,1 178 5.0 2.7 963 U 0.14 0.120 0.029J 0.040J 0.063J <0.009 <0.011 <0.029 <0.220 22.00 0.21 0.01 0.71 MW-6 3/25/2014 149 250 134.9 U 34 6.27 U 38.0,1 303 0.55 10.0 283J 0.07J 27J 51J 31J U 55J U U U U 8.6 0.070 0.0077J 0.83 MW-6 5/28/2015 1 15 52 80 U U 1.64 U 12.4,1 66 0.98 2.5 261J 0.53J 27J U U U 34J U U U U 1.2 0.0068J 0.016 1.0 MW-6 9/30/2015 59 47 38 2.2 22 3.70 U 62J 137 0.28 U 482 0.33J 36J 53J U 16J U U I U U U 9.9 0.042 0.038 1 3.5 MW-6 3/16/2016 30 102 64 3.4 U 1.98 U 12.8,1 90 2.78 3.1 364 0.80J 14J 13J U U U U U U U 5.6 0.023 0.019 2.4 MW-6 9/28/2016 83 81 137 U 33 5.23 U 67.6J 170 1.49 2.9 598 0.06J 35J 51J U 9.5,1 7.0,1 U 40J U 82J 26 0.076 0.024 1.9 MW-6 3/23/2017 54 179 110 U 35 4.41 U 62.4,1 227 1.17 1.9 241J U 11J 26J U U U U U I U U 21 0.10 0.020 1.9 MW-6 9/27/2017 85 171 100 U 24 4.37 U 69.0,1 208 0.38 8.9 742 U 190J 25J U U U U U U U 14 0.07 0.018 2.9 MW-6 3/15/2018 108 138 102 3.1 27 4.33 U 62.1J 198 0.37 7.7 992 0.06J 0.20J 0.038J U 0.035J U U U U U 23 0.11 0.018 1.4 MW-6 9/24/2018 72 142 1 38 U 28 3.41 U 65.8 222 0.91 1.1 89 U 0.014J 0.19 0.078J 0.023J U U U U U 14 U U 3.1 MW-100S 3/28/2012 9 75 79.9 U U U U 7.4J 34 5.8 5.8 311 0.19J <0.1 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 0.30 1 <0.01 <0.01 0.91 MW-100S 9/19/2012 64 95 -33.5 2.6 U 2.6 U U 86 0.4 13.0 14980 U <0.1 1 <0.07 1 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 75.00 0.03 0.01 1 0.96 MW-100S 3/13/2013 U 22 271.2 U U U U 5.9 15 7.8 22.0 547 U 0.08 <0.21 <0.004 <0.007 <0.004 <0.012 <0.01 <0.013 0.12 0.069 0.001 0.008 10.290 MW-100S 9/25/2013 22 88 135.1 U U 2.0 U U 46 4.5 40.0 2429 0.450J 0.18 0.054J 0.014J 0.036J <0.014 <0.009 <0.011 <0.029 <0.220 12.000 0.0041J <0.006 0.680 MW-100S 3/25/2014 U 48 235.2 9.0 U U U U 7 7.75 25.0 1643 U 44J 29J 24J U U U U U U 0.032 U U 0.90 MW-100S 5/28/2015 11 47 84 U U U U 10.7J 7 5.80 2.2 96J 0.23J 81J U U U 35J U U U U 0.036 U 0.0084J 1.2 MW-100S 9/30/2015 44 122 98 U U 2.86 U 11.9,1 75 4.59 11.0 760 0.48J 31J 41J U 14J U U U U U 32 0.013 0.083 3.6 MW-100S 3/16/2016 27 50 92 U U U U 6.5,1 7 6.99 20.0 898 0.29J 59J 181 U U U U U U U 0.052 0.0017J 0.017 3.1 MW-100S 9/28/2016 48 159 134 U U 2.92 U U 40 1.84 190.0 8064 0.19J 290.00 59J U 9.4,1 13J U 27J U U 65 0.022J 0.17 MW-100S 3/22/2017 22 61 188 U U 1.06 U 7.9,1 34 1 5.68 15.0 2242 0.13J 24J 43J U U U U 13J U U 0.90 10.0060,1 0.036J MW-100S 9/27/2017 43 130 133 U 26 4.16 U 19.4,1 78 0.50 75 4039 0.26J 56J 20J I U U I U U U U U 140 0.042J 0.92 MW-100S 3/15/2018 U 40 85 U U U U U 12 5.96 60 2845 0.06J U 0.032J U U U U U U U 10 0.0037J 0.0081J 1.8 MW-100S 9/24/2018 U 45 98 U U U U 6.2 10 4.55 U U U 0.020J 0.16 0.062J 0.017J U U U U U U U U 3.1 MW-104S 3/28/2012 194 165 13.1 3.8 33 4.8 U U 266 1.3 20.0 12380 0.39J 0.20 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 1600.00 6.00 0.06 1.00 MW-104S 9/19/2012 95 185 -41.1 2.5 24 3.6 U 12.2,1 231 0.3 19.0 10900 0.19J <0.1 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 0.14 900.00 3.20 0.10 1 1.10 MW-104S 3/13/2013 156 252 117.4 2.4 31 4.5 U U 241 1.7 26.0 11600 0.4 0.09 <0.021 <0.004 <0.007 <0.004 <0.012 <0.01 <0.013 <0.039 1000 4.00 0.04 0.34 MW-104S 9/25/2013 36 112 151.2 2.3 U 2.3 U 10.4J 89 0.9 7.5 8060 14.6 0.16 0.050J 0.016J 0.035J <0.014 <0.009 0.09 <0.029 <0.220 86 0.52 0.03 0.72 MW-104S 3/25/2014 77 128 176.7 U U 3.2 U U 54 1.80 2.7 2487 8.48J 59J 36J 32J U U U U U U 82 1.30 0.080 0.96 MW-104S 5/28/2015 10 132 99 U 23 3.63 U U 56 0.41 8.3 487 23.79 95J U U U I 37J U U U U 70 0.082 0.11 1.2 MW-104S 9/30/2015 7 103 59 U U 1.76 U 7.8,1 46 0.42 U 94J 26.64 34J 34J U 14J U U U U U 4.1 0.029 0.045 3.2 MW-104S 3/16/2016 20 184 72 U 20 2.50 U 5.5,1 57 1.82 2.7 128J 12.64 30J 43J U U U U U U U 53.0 0.14 0.10 2.9 MW-104S 9/28/2016 19 98 117 U 22 2.01 U U 34 2.71 16 768 28.48 25J 72J U 10J 35J U 35J U 88J 0.20 0.0037J 0.012 2.2 MW-104S 3/23/2017 68 203 110 U 24 2.43 U 3.8,1 31 1.21 40.0 6557 3.79J 13J 31J U U U U 29J U U 66 0.46 0.095 2.0 MW-104S 9/27/2017 41 139 106 U U 1.88 U 7.5J 39 0.58 5.5 1009 5.04J U 27J U U U U U U U 22 0.18 0.048 3.0 MW-104S 3/15/2018 129 151 50 U 26 3.22 U 16.8,1 133 0.14 150 14413 5.25J U 0.029J U 0.10 U U U U U 280 2.0 0.10 1.6 MW-104S 9/24/2018 53 90 25 U U 2.06 U 7.7 96 0.93 1.0 229 4.96 0.019J 0.16 0.080J 0.033J 0.010J U U U U 22 U U 4.4 1of7 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill m 3 C r2 c m E f/1 J rn E O L U E d p O p -0 U � E a Q O � E O m J E O U J O F v y � E ti 7 y � Y a A F � rn E O Z Y 3 � ° v' a°i p N A 01 o E N y O d N J m c rn O` Z d _ Z u a u J u a n N Q Q c a � a T m a 2 d c° :a a 0 W a x = o A x t W w t W w t W rn S NC2LStandard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.041 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-106S 3/28/2012 29 32 214.3 U U 1.3 U 16.6,1 47 5.3 23.0 171J 4.78J <0.1 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 0.04 <0.01 <0.01 0.85 MW-106S 9/19/2012 47 41 178.6 U U 1.9 U 18.5,1 77 0.9 5.7 456 0.71J <0.1 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 0.51 <0.01 <0.01 0.99 MW-106S 3/13/2013 16 37 270.7 U U 1.5 U 11.0 44 11.1 9.0 627 4.8 0.06 <0.021 <0.004 <0.007 <0.004 <0.012 <0.01 <0.013 <0.039 0.031 0.002 <0.007 0.26 MW-106S 9/25/2013 39 52 198.8 U U 1.2 U 6.9,1 42 4.4 3.6 164 3.62J 0.12 0.054J 0.015J 0.038J <0.014 <0.009 0.10 <0.029 <0.220 0.340 0.010 <0.006 0.75 MW-106S 3/25/2014 9 27 197.4 U U 1.9 U 9.7,1 21 9.20 9.6 333 3.80J 30J 82J U U U U U U U 0.014J U U 0.81 MW-106S 5/28/2015 69 54 1 76 U 25 2.12 U 11.4,1 81 1.31 6.1 173J 1.60J 17J U U U I 35J U U U U 4.3 0.045 U 1.3 MW-106S 9/30/2015 22 35 69 U U U U 12.1J 23 5.47 2.9 65J 3.63 14J 38J U 16J U U U U U 0.12 0.0045J 0.014 4.0 MW-106S 3/16/2016 23 39 74 U U U U 8.6,1 15 7.38 5.0 363 6.51J 33J 31J 8.7J U U U U U U 0.055 0.0014J 0.0070J 2.8 MW-106S 9/28/2016 228 316 143 U 45 4.55 U 10.7J 141 1.09 110.0 3936 0.29J 13J 42J U U 17J U 32J U U 88 0.18 0.084 1.9 MW-106S 3/23/2017 36 58 171 2.5 U 1.22 U 10.4J 30 5.26 11.0 485 3.82J 36J 42J U U U U 26J U U 0.057 0.0025J 0.0074J 1.9 MW-106S 9/27/2017 210 287 139 U 36 4.14 U 19.3,1 436 0.43 5.8 308 U U U U U U U U U U 51 0.13 0.049 2.8 MW-106S 3/15/2018 14 25 90 U U 1.04 U 5.0,1 15 5.06 23 772 2.81J U 0.030J U U U U U U U 0.042J 0.0014J 0.0036J 2.2 MW-106S 9/24/2018 U 58 100 8.7 23 4.96 U 8.3 22 1.03 2.3 314 3.63 0.019J 3.0 0.42 2.2 0.0089 U 0.018J U 0.016J 0.32 U U 9.6 MW-202S 3/38/2012 13 218 65.4 - - - 6579 514 MW-202S 9/19/2012 16 193 79.0 - - - - - - - - - - 6310 597 - - - - - - - - - - - - - - MW-202S 3/13/2013 17 190 131.1 6182 737 MW-202S 6/26/2013 18 185 73.0 - - - - - - - - - - 6213 827 - - - - - - - - - - - - - - MW-202S 9/25/2013 25 287 46.1 5872 781 MW-202S 3/25/2014 21 208 58.3 - - - - - - 0.81 180 - - - - - - - - - - - - - - - - - MW-202S 6/26/2014 21 278 71 0.33 130 MW-202S 5/28/2015 23 245 58 - - - - - - 1.72 50 - - - - - - - - - - - - - - - - - MW-202S 9/30/2015 20 195 76 0.56 160 275 6861 682 MW-202S 12/10/2016 22 209 44 - - - - - - 1.14 50 289 - 6422 665 - - - - - - - - - - - - - MW-202S 3/16/2016 24 188 90 0.52 500 249 6633 661 MW-202S 6/22/2016 25 200 42 - - - - - - 1.68 75 222 - 4690 431 - - - - - - - - - - - - - MW-202S 9/29/2016 32 188 206 1.62 160 192 4925 236 MW-202S 12/21/2016 24 199 136 - - - - - - 0.58 65 230 - 4247 290 - - - - - - - - - - - - - - MW-202S 3/23/2017 26 287 61 0.18 1100 321 14645 967 MW-202S 6/27/2017 14 222 157 0.54 50 377 8489 878 MW-202S 9/29/2017 26 232 107 0.66 550 226 8573 568 MW-202S 3/15/2018 20 202 72 0.30 210 274 6773 895 MW-202S 6/6/2018 20 154 93 - 0.46 150 305 7271 719 MW-202S 9/25/2018 1 19 183 54 1 - 0.82 1 32 317 7879 697 2of7 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill m 3r2 c /1 J rn OO U E pOO -0 Ud`m E O � Fo Y � v' ° p N A 0 EE O J c OC ` Z Z ua uaN Qa cTE �a a� d ¢:°c a a aaW0 =¢ aoxA t�W tWw tWw S�rn NC 2L Standard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.041 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-202D 3/28/2012 7 85 161.9 - - - - - - - - - - 2873 3J - - - - - - - - - - - - - - MW-202D 9/19/2012 6 36 223.4 4487 3J MW-202D 3/13/2013 14 92 300.3 - - - - - - - - - - 4186 7018 - - - - - - - - - - - - - - MW-202D 6/26/2013 14 92 672.0 4341 24969 MW-202D 9/25/2013 5 98 570.4 - - - - - - - - - - 2890 729 - - - - - - - - - - - - - MW-202D 3/25/2014 7 102 146.5 1.80 8 MW-202D 6/26/2014 27 128 697 - - - - - - 1.47 9.2 - - - - - - - - - - - - - - - - - MW-202D 5/28/2015 5 125 79 0.92 6.5 MW-202D 9/30/2015 U 55 80 - - - - - - 0.58 19.0 114 - 4386 93 - - - - - - - - - - - - - MW-202D 12/10/2015 6 116 66 5.03 29 114 4386 93 MW-202D 3/16/2016 12 57 580 - - - - - - 0.52 500 249 - 6633 661 - - - - - - - - - - - - - MW-202D 6/22/2016 30 108 651 11.34 22 212 9103 27731 MW-202D 9/29/2016 43 135 629 - - - - - - 2.81 8.1 138 - 6673 5119 - - - - - - - - - - - - - MW-202D 12/21/2016 6 119 347 1.38 11 136 5784 488 MW-202D 3/23/2017 24 82 76 - - - - - - 5.29 12.0 136 - 13842 289 - - - - - - - - - - - - - MW-202D 6/27/2017 7 130 51 8.73 1.2 146 6450 152 MW-202D 9/29/2017 9 129 142 - - - - - - 0.23 2.9 120 - 6288 254 - - - - - - - - - - - - - - MW-202D 3/15/2018 16 74 86 1.90 35 171 11718 20028 MW-202D 6/6/2018 80 116 540 - - - - - - 2.08 18 190 - 9317 19249 - - - - - - - - - - - - - - MW-202D 9/25/2018 8 135 456 1.80 16 148 8251 2563 MW-203S 3/28/2012 26 232 227.8 - - - - - - - - - - 3689 164 - - - - - - - - - - - - - - MW-203S 9/19/2012 25 185 147.7 3265 132 MW-203S 3/13/2013 27 188 280.1 - - - - - - - - - - 2931 146 - - - - - - - - - - - - - - MW-203S 6/26/2013 25 189 592.0 3215 125 MW-203S 9/25/2013 27 218 293.0 - - - - - - - - - - 2601 114 - - - - - - - - - - - - - - MW-203S 3/25/2014 27 205 166.9 1.26 14 MW-203S 6/26/2014 30 123 198 - - - - - - 0.30 55 - - - - - - - - - - - - - - - - - - MW-203S 5/28/2015 25 168 147 0.64 8.6 MW-203S 9/30/2015 24 85 67 - - - - - - 1.05 68.0 120 - 2935 118 - - - - - - - - - - - - - - MW-203S 12/10/2015 24 149 83 0.67 29 93 2558 105 MW-203S 3/16/2016 27 173 520 - - - - - - 0.92 16 72 - 2590 116 - - - - - - - - - - - - - MW-203S 6/22/2016 24 154 147 1.22 24 113 2575 179 MW-203S 9/29/2016 33 153 515 - - - - - - 0.92 120 128 - 3505 146 - - - - - - - - - - - - - - MW-203S 12/21/2016 23 151 84 0.97 34 104 2523 103 MW-203S 3/23/2017 26 136 90 - - - - - - 0.21 55.0 92 - 3073 111 - - - - - - - - - - - - - - MW-203S 6/27/2017 23 133 96 1.30 3.9 112 2642 106 MW-203S 9/29/2017 26 135 112 - - - - - - 0.28 160 110 - 3214 149 - - - - - - - - - - - - - MW-203S 3/15/2018 25 120 98 0.49 340 95 3608 202 MW-203S 6/6/2018 25 92 113 0.96 90 114 3109 134 MW-203S 9/25/2018 25 133 94 0.98 21 1 97 2751 1 115 3of7 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill m 3 C r2 r, c m E f/1 rn E O L U E d p O p -0 U � E a Q O � E O m J E O U J O F v y � E ti 7 y � Y a A F � rn E O Z Y 3 � ° v' a°i p N A 01 o E N y O d N J m c rn O` Z d _ Z u a u J u a n N Q Q c a � a T m a 2 d c° :a a 0 W a x = o A x t W w t W w t W rn S NC 2L Standard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.041 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-205S 3/28/2012 250 378 -43.6 - - - - - - - - - - 7736 6560 - - - - - - - - - - - - - - MW-205S 9/19/2012 152 92 -88.9 9981 5712 MW-205S 3/13/2013 218 232 43.3 - - - - - - - - - - 6800 6929 - - - - - - - - - - - - - - MW-205S 6/26/2013 194 455 -3.0 8111 5781 MW-205S 9/25/2013 140 243 -40.8 - - - - - - - - - - 5263 4360 - - - - - - - - - - - - - MW-205S 3/25/2014 216 451 135.6 1.33 190 MW-205S 6/26/2014 191 412 -14 - - - - - - 0.19 130 - - - - - - - - - - - - - - - - - MW-205S 5/28/2015 173 358 7 0.41 650 MW-205S 12/10/2015 172 255 30 - - - - - - 2.75 90 535 - 5188 4669 - - - - - - - - - - - - - MW-205S 3/16/2016 165 338 89 0.47 500 514 5925 3926 MW-205S 6/22/2016 93 204 23 - - - - - - 0.74 330 365 - 4077 3419 - - - - - - - - - - - MW-205S 9/29/2016 159 184 4 0.62 500 529 7934 3692 MW-205S 12/21/2016 157 184 -20 - - - - - - 1.27 330 561 - 4131 4700 - - - - - - - - - - - - - MW-205S 3/23/2017 169 218 30 0.82 430 617 4698 5643 MW-205S 6/27/2017 23 186 -3 - - - - - - 0.22 50 577 - 4611 4710 - - - - - - - - - - - - - MW-205S 9/29/2017 177 161 -25 0.31 850 590 9424 5004 MW-205S 3/15/2018 197 187 56 - - - - - - 0.95 2800 531 - 6611 4369 - - - - - - - - - - - - - MW-205S 6/6/2018 177 176 34 0.74 500 614 5093 4207 MW-205S 9/25/2018 197 162 - 0.86 550 677 6916 5575 MW-205D 3/28/2012 69 48 269.2 - - - 28J 3372 MW-205D 9/19/2012 94 65 34.2 - - - - - - - - - - 1998 24J - - - - - - - - - - - - - MW-205D 3/13/2013 118 34 107.2 2741 51 MW-205D 6/26/2013 116 101 298.0 - - - - - - - - - - 2888 111 - - - - - - - - - - - - - MW-205D 9/25/2013 113 197 69.8 2402 192 MW-205D 3/25/2014 107 172 126.8 - - - - - - 2.58 3.5 - - - - - - - - - - - - - - - - - - MW-205D 6/26/2014 95 92 608 0.59 50 MW-205D 5/28/2015 95 139 122 - - - - - - 2.74 28 - - - - - - - - - - - - - - - - - - MW-205D 9/30/2015 97 95 28 2.25 13.0 528 3295 859 MW-205D 12/10/2015 101 179 60 - - - - - - 2.03 9.5 527 - 2898 562 - - - - - - - - - - - - - - MW-205D 3/16/2016 98 153 83 3.73 4.5 493 2928 U MW-205D 6/22/2016 95 141 54 - - - - - - 11.23 24 567 - 3116 1353 - - - - - - - - - - - - - MW-205D 9/29/2016 95 172 57 1.12 29 487 3653 1790 MW-205D 12/21/2016 U 23 29 - - - - - - 1.01 70 117 - 4351 143 - - - - - - - - - - - - - - MW-205D 3/23/2017 8 15 168 5.96 36.0 87 4741 38J MW-205D 6/27/2017 51 136 97 - - - - - - 10.21 70.0 448 - 3529 641 - - - - - - - - - - - - - - MW-205D 9/29/2017 71 120 -10 0.15 24 408 3322 1044 MW-205D 3/15/2018 98 119 371 0.26 4.2 485 2779 725 MW-205D 6/6/2018 103 62 54 0.98 3.3 548 3189 536 MW-205D 1 9/25/2018 102 137 -26 1.09 4.5 571 1 3296 1549 4of7 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill m 3r2 c /1 J rn OO U E pOO -0 Ud`m E O O � Fo Y � v' ° p N A 0 EE O J c OC ` Z Z ua uaN Qa cTE �a a� d ¢:°c a a aaW0 =¢ aoxA t�W tWw tWw S�rn NC 2L Standard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.041 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-206D 3/28/2012 U 20 -123.2 - - - - - - - - - - 2349 98 - - - - - - - - - - - - - - MW-206D 9/19/2012 5 14 117.8 917 178 MW-206D 3/13/2013 7 12 123.5 - - - - - - - - - - 1554 93 - - - - - - - - - - - - - - MW-206D 6/26/2013 6 12 -17.0 1564 126 MW-206D 9/25/2013 13 19 79.0 - - - - - - - - - - 1287 210 - - - - - - - - - - - - - MW-206D 3/25/2014 6 5 134.0 3.67 15 MW-206D 6/26/2014 U 9 -52 - - - - - - 4.98 15 - - - - - - - - - - - - - - - - - MW-206D 5/28/2015 U 13 116 0.47 4.4 MW-206D 9/30/2015 U 5 68 - - - - - - 0.64 9.3 159 - 1733 86 - - - - - - - - - - - - - MW-206D 12/10/2016 6 7 30 1.45 18.0 161 1376 71 MW-206D 3/16/2016 7 8 305 - - - - - - 1.27 3.7 159 - 1394 18J - - - - - - - - - - - - - MW-206D 6/22/2016 7 9 122 1.19 8.2 163 1303 18J MW-206D 9/29/2016 14 6 57 - - - - - - 0.55 5.3 159 - 1639 16J - - - - - - - - - - - - - MW-206D 12/21/2016 5 9 131 0.22 9.2 168 1389 85 MW-206D 3/23/2017 7 9 -25 - - - - - - 2.43 7.2 160 - 1522 16J - - - - - - - - - - - - - MW-206D 6/27/2017 U 70 19 1.47 1.4 167 1330 14 J MW-206D 9/29/2017 10 8 -15 - - - - - - 1.98 2.0 135 - 1426 14J - - - - - - - - - - - - - - MW-206D 3/15/2018 5 5 33 0.27 2.2 127 1322 37J MW-206D 6/6/2018 U 5 63 - - - - - - 0.59 7.2 166 - 1386 32J - - - - - - - - - - - - - - MW-206D 9/25/2018 U 10 84 0.82 3.9 155 1590 19 MW-207S 3/28/2012 17 155 232.7 - - - - - - - - - - 3169 550 - - - - - - - - - - - - - - MW-207S 9/19/2012 20 112 200.7 2712 889 MW-207S 3/13/2013 22 125 298.1 - - - - - - - - - - 7637 1112 - - - - - - - - - - - - - - MW-207S 6/26/2013 28 162 533.0 5925 845 MW-207S 9/25/2013 35 184 193.0 - - - - - - - - - - 6861 1229 - - - - - - - - - - - - - - MW-207S 3/25/2014 25 181 206.4 5.46 400 MW-207S 6/26/2014 25 82 162 - - - - - - 1.66 400 - - - - - - - - - - - - - - - - - - MW-207S 5/28/2015 25 182 121 0.85 190 MW-207S 9/30/2015 24 134 83 - - - - - - 1.27 6.5 140 - 4955 587 - - - - - - - - - - - - - - MW-207S 12/10/2015 22 189 95 1.21 330.0 1051 4006 577 MW-207S 3/16/2016 21 104 127 - - - - - - 1.49 350 85 - 1543 292 - - - - - - - - - - - - - MW-207S 6/22/2016 27 158 84 0.72 550 116 7611 961 MW-207S 9/29/2016 34 151 181 - - - - - - 1.20 100 131 3473 305 - - - - - - - - - - - - - - MW-207S 12/21/2016 28 158 162 0.77 260 129 4399 462 MW-207S 3/23/2017 25 283 104 - - - - - - 0.88 1200.0 122 - 13577 1955 - - - - - - - - - - - - - - MW-207S 6/27/2017 22 150 100 1.41 90.0 137 1 2904 360 MW-207S 9/29/2017 23 157 150 - - - - - - 0.38 4600 141 - 27466 4143 - - - - - - - - - - - - - MW-207S 3/15/2018 21 142 122 1.68 380 94 33 5 322 MW-207S 6/6/2018 22 6 80 0.77 230 13 7 3387 234 MW-207S 9/25/2018 1 3 1 132 1 299 1 1 1.19 1 120 1 1031 1 2008 1 99 5of7 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill m C 3r2 :! c E /1 J rn OO U E pOO -0 Ud`m Q E O O � o F O Y � v' ° p 0CL N A EE O N_d J c O ` Z Z ua ua Qa �a T a� d ¢° c a aaW =¢ aox XM � tw tw W S�rn NC 2L Standard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.041 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-207D 3/28/2012 8 18 171.1 - - - - - - - - - - 5846 76 - - - - - - - - - - - - - - MW-207D 9/19/2012 8 18 160.2 1952 37J MW-207D 3/13/2013 8 28 226.7 - - - - - - - - - - 2387 59 - - - - - - - - - - - - - - MW-207D 6/26/2013 12 20 308.0 2093 26 J MW-207D 9/25/2013 8 13 156.8 - - - - - - - - - - 1356 5 - - - - - - - - - - - - - MW-207D 3/25/2014 7 6 164.3 5.71 22 MW-207D 6/26/2014 6 17 77 - - - - - - 4.35 32 - - - - - - - - - - - - - - - - - MW-207D 5/28/2015 6 18 168 5.34 4.0 MW-207D 9/30/2015 5 6 69 - - - - - - 3.14 390 195 - 1235 U - - - - - - - - - - - - - MW-207D 12/10/2015 7 9 174 2.05 29 201 1068 2.8,1 MW-207D 3/16/2016 7 10 91 - - - - - - 2.80 13.0 175 - 919 U - - - - - - - - - - - - - MW-207D 6/22/2016 9 10 71 8.24 12 197 1006 3.5,1 MW-207D 9/29/2016 15 11 153 - - - - - - 2.81 32.0 200 - 1322 U - - - - - - - - - - - - - MW-207D 12/21/2016 U 10 191 0.42 40 73 2652 16J MW-207D 3/23/2017 23 9 109 - - - - - - 2.38 8.1 110 - 2324 25J - - - - - - - - - - - - - MW-207D 6/27/2017 6 80 82 3.44 8.3 178 1528 24 J MW-207D 9/29/2017 10 12 132 - - - - - - 0.24 2.3 182 - 1027 152 - - - - - - - - - - - - - - MW-207D 3/15/2018 7 7 90 0.33 3.8 165 928 31J MW-207D 6/6/2018 7 5 66 - - - - - - 0.29 7.3 190 - 1129 24J - - - - - - - - - - - - - - MW-207D 9/25/2018 6 7 212 0.85 4.5 202 1105 49 MW-208S 3/28/2012 125 232 325.1 - - - - - - - - - - 3171 5046 - - - - - - - - - - - - - - MW-208S 9/19/2012 124 242 89.5 4287 12804 MW-208S 3/13/2013 138 248 140.8 - - - - - - - - - - 8430 10274 - - - - - - - - - - - - - - MW-208S 6/26/2013 525 87 201.0 4493 537 MW-208S 9/25/2013 125 278 195.3 - - - - - - - - - - 5277 11572 - - - - - - - - - - - - - - MW-208S 3/25/2014 268 107 180.5 2.68 46 MW-208S 6/26/2014 90 183 187 - - - - - - 2.30 150 - - - - - - - - - - - - - - - - - - MW-208S 5/28/2015 25 85 193 2.06 750 MW-208S 9/30/2015 101 77 89 - - - - - - 0.59 600 506 - 6584 17162 - - - - - - - - - - - - - - MW-208S 12/10/2015 63 202 132 1.60 120 280 2773 2033 MW-208S 3/16/2016 66 104 111 - - - - - - 0.26 230 276 - 1722 1365 - - - - - - - - - - - - - MW-208S 6/22/2016 73 165 107 5.92 26 415 2501 8369 MW-208S 9/29/2016 95 241 172 - - - - - - 0.95 60 420 - 4054 11498 - - - - - - - - - - - - - - MW-208S 12/21/2016 23 139 134 1.78 300 141 2288 2176 MW-208S 3/23/2017 31 257 121 - - - - - - 2.20 110 134 - 1736 2534 - - - - - - - - - - - - - - MW-208S 6/27/2017 68 205 96 0.37 220 335 4063 7152 MW-208S 9/29/2017 91 181 147 - - - - - - 1.17 130 399 - 3696 13725 - - - - - - - - - - - - - MW-208S 3/15/2018 84 184 96 0.77 900 275 5125 11141 MW-208S 6/6/2018 81 143 84 1.14 240 36t 4511 7378 MW-208S 1 9/25/2018 1 91 121 208 - 2.03 1 65 1 3231 1 2286 1 1068 6of7 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J :! J E J E ° Z_mE rnU � _j J J v' E ua ua Qva ¢° E Y ° c a a O. Q O O T c tw tw W OO O O p O ` XM /1 pOO N A Z O a Srn -0 U`m o F d 0CL Z NC 2L Standard 250 NE NE NE NE NE NE 250 NE NE NE 500 300 NE 50 10 NE NE NE NE NE NE NE NE NE NE NE NE NE MDL 5.0 1.0 2.0 0.840 0.120 100 1.041 1.0 0.1 1.0 1.0 13.27 1.28 0.003 0.020 0.020 0.0061 0.04 0.016 0.0055 0.012 0.041 0.038 0.0040 0.0010 0.0020 0.160 MW-208D 3/28/2012 30 21 294.8 - - - - - - - - - - 2477 2158 - - - - - - - - - - - - - - MW-208D 9/19/2012 63 28 124.7 3620 3272 MW-208D 3/13/2013 43 26 135.7 - - - - - - - - - - 3579 312 - - - - - - - - - - - - - - MW-208D 6/26/2013 38 8 159.0 4348 495 MW-208D 9/25/2013 30 14 248.7 - - - - - - - - - - 7245 2840 - - - - - - - - - - - - - MW-208D 3/25/2014 27 10 158.4 6.87 130 MW-208D 6/26/2014 13 14 102 - - - - - - 6.97 21 - - - - - - - - - - - - - - - - - MW-208D 5/28/2015 15 16 101 5.97 8.0 MW-208D 9/30/2015 10 6 85 - - - - - - 4.90 14.0 279 - 1472 58 - - - - - - - - - - - - - MW-208D 12/10/2015 11 10 72 4.63 105 300 1711 208 MW-208D 3/16/2016 11 12 90 - - - - - - 4.66 180 258 - 2014 346 - - - - - - - - - - - - - MW-208D 6/22/2016 12 8 80 5.92 55 249 1388 127 MW-208D 9/29/2016 16 13 159 - - - - - - 5.95 14 238 - 1964 12J - - - - - - - - - - - - - MW-208D 12/21/2016 8 14 140 3.29 25 265 3481 27J MW-208D 3/23/2017 18 10 90 - - - - - - 4.47 4.1 245 - 4834 52 - - - - - - - - - - - - - MW-208D 6/27/2017 9 80 118 4.32 280 285 5106 622 MW-208D 9/29/2017 9 4 133 - - - - - - 4.14 6.6 276 - 6118 22J - - - - - - - - - - - - - - MW-208D 3/15/2018 7 5 68 4.86 8.7 236 5917 30J MW-208D 6/6/2018 5 6 95 6.00 650 290 8441 1269 MW-208D 9/25/2018 9 4 193 6.47 120 270 5620 194 Notes: All units are in micrograms per liter (pg/L), except where indicated. NE: No standard established ' ": Not analyzed < #: Indicates the analyte was analzyed for, but not detected at the associated limit. BOD: Biochemical oxygen demand COD: Chemical oxygen demand DO: Dissolved oxygen J: Estimated value MDL: Method detection limit mg/L: Milligram per liter mv: Millivolts nM: Nanomole NTU: Nephelometric turbidity unit ORP: Oxidation-reduction potential TOC: Total organic carbon U: Not detected Bold concentrations exceed the NC 2L Groundwater Protection Standards, effective April 2013. URS is not responsible for data generated or tabulated prior to September 2013. 7of7 Table 10 Historical Field Parameters Wilders Grove Landfill Sampling Date: 3/23/2011 9/26/2011 3/27/2012 9/19/2012 3/13/2013 9/24/2013 3/26/2014 Monitoring Well pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. Designation (S.U.) ( MS) (Deg. C) (S.U.) (MS) (Deg. C) (S.U.) (MS) (Deg. C) (S.U.) (MS) (Deg. C) (S.U.) (MS) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) MW-1 5.4 144 17 5.2 173 19 6.2 162 18 Dry Dry Dry Dry Dry Dry 5.6 124 19 5.5 152 13 MW-2 6.4 2570 18 6.2 2058 20 6.7 2800 17 6.2 2610 201 6.3 2360 171 6.3 1322 19 6.4 2640 13 MW-3 5.9 7621 18 5.7 7091 21 6.5 556 16 5.8 530 21 5.9 716 15 5.9 673 19 5.9 752 12 MW-4 5.3 74 21 5 69 18 6.1 791 19 5.3 79 19 5.5 105 18 5.7 85 19 5.31 104 13 MW-6 6.1 1311 18 6.1 1176 17 6 10901 16 5.8 1480 16 6.6 793 16 6.1 1287 17 6.4 1132 11 MW-8 5.6 185 18 5.2 210 19 6.3 166 17 5.4 228 18 5.6 218 17 5.4 175 19 5.6 195 13 MW-9 5.4 176 18 5.4 177 17 6.2 185 17 5.7 195 17 5.3 250 17 5.3 198 17 5.7 222 15 MW-10" 6.4 2250 25 MW-11 61 722 17 5.4 267 19 6.3 221 17 5.6 271 19 5.6 291 17 5.9 621 20 6.0 625 14 MW-12 5.5 165 18 5.2 178 20 6.2 213 18 5.5 232 20 5.4 223 18 5.7 366 20 5.8 293 15 MW-100S 6.2 380 17 6.1 1241 19 5.9 179 15.9 5.8 1195 17 6 44 15 5.9 279 18 6.01 83 12 MW-100D 6.2 1655 18 6.1 1670 18 6.6 1610 17 6.3 2220 18 6.3 1896 17 6.1 1353 18 6.2 1798 14 MW-101D 7 130 18 6.9 130 17 6.9 131 17 7.3 135 17 6.7 134 16 6.6 133 17 7.0 173 14 MW-102S 6.2 853 18 5.9 848 21 6.5 745 18 6.1 1012 20 6.1 869 18 6.0 429 19 6.1 839 15 MW-103S 5.5 226 17 5.6 264 18 6.2 331 17 5.6 382 18 5.5 344 17 5.8 429 17 6.1 323 14 MW-104S 61 758 21 5.9 1112 20 5.9 1105 20 5.9 1255 20 6.8 811 20 5.8 349 20 5.8 438 14 MW-104D 6.2 321 21 6.1 342 21 6.5 277 21 6.4 349 21 6.2 363 20 6.2 363 20 6.3 360 17 MW-105S Dry Dry Dry Dry Dry Dry Dry Dry Dry 5.1 83 19 5.2 96 16 MW-106S 5.9 430 13 5.9 614 21 5.6 236 13 5.8 348 21 6.2 181 18 5.7 294 19 6.2 136 7 M W-201 S 5.5 77 14 5.6 91 17 6.9 110 14 5.2 134 17 5.6 128 13 MW-202S 5.8 429 15 5.8 433 20 6.8 485 14 6.1 532 19 6.5 576 13 MW-202D 5.8 91 15 5.7 110 19 5.3 145 14 5.7 140 19 5.1 138 14 MW-203S 4.9 135 17 4.9 145 18 4.3 143 17 5.2 150 18 3.7 144 16 MW-204S 4.8 127 16 4.7 137 17 5.4 156 16 4.9 136 17 5.1 121 16 MW-205S 6.1 1253 14 6.4 1145 19 7.4 1367 12 6.3 1079 19 8.0 1182 12 MW-205D 6.3 709 14 6.2 913 19 7.1 923 13 6.3 939 19 6.7 898 13 MW-206D 7.3 222 16 7.1 250 14 7.8 264 13 7.3 272 16 7.0 257 15 MW-207S 5.2 111 15 5.2 129 15 4.3 134 14 5.3 148 17 5.0 96 13 MW-207D 6.8 262 16 7.1 312 17 6.2 310 16 7.2 307 16 7.1 297 15 MW-208S 6.6 646 15 5.9 974 15 6.5 897 15 5.9 952 16 7.1 1079 13 MW-208D 6.5 334 16 6.6 966 16 7.7 1052 15 6.8 746 16 7.41 578 15 SW-1 7 325 19 6.9 248 24 6.5 105 20 7.3 885 20 6.71 111 11 6.71 217 20 7.31 128 8 SW-2 6.9 2551 161 7.11 121 24 6.6 151 211 7.4 1931 21 6.51 127 131 6.71 117 20 7.41 185 9 SW-3 7 2501 171 6.51 1181 24 6.6 156 211 6.6 2091 201 6.41 266 111 6.71 120 20 7.11 196 12 Page 1 of 3 Table 10 Historical Field Parameters Wilders Grove Landfill Sampling Date: 5/26/2015-5/28/2015 9/29/2015-9/30/2015 3/15/2016 - 3/16/2016 9/27/2016 3/22/2017 - 3/23/2017 9/27/2017 - 9/29/2017 3/14/2018 - 3/15/2018 9/20/2018 - 9/25/2018 Monitoring Well pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. Designation (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) MW-1 5.6 589 17 5.5 112 20 5.5 129 17 5.5 161 20 5.5 145 17 5.1 153 19 5.7 109 16 5.3 103 19 MW-2 6.5 2620 19 6.3 1376 21 6.5 1561 17 6.4 2430 21 6.6 1935 17 6.3 999 21 6.6 982 16 6.4 1165 20 MW-3 6.0 740 18 5.7 607 22 6.0 604 15 6.0 728 22 6.0 461 16 5.61 428 22 6.21 386 15 5.81 407 21 MW-4 5.2 116 19 5.21 70 20 5.3 1001 18 5.3 88 20 5.5 470 18 4.9 74 19 5.3 67 19 5.0 90 20 MW-6 6.2 206 15 6.21 446 21 6.1 286 18 6.3 738 19 6.4 570 16 6.2 568 21 6.3 922 15 6.3 563 18 MW-8 5.3 186 17 5.4 154 19 5.3 156 16 5.5 214 21 5.7 171 16 5.2 222 20 5.6 152 16 5.2 221 19 MW-9 5.3 257 19 5.4 155 20 5.5 164 18 5.5 190 19 5.5 173 20 5.2 276 19 5.5 382 15 5.1 404 18 MW-10" -- -- -- -- - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-11 6.4 827 17 6.2 602 22 6.4 679 17 6.2 738 22 6.4 577 16 5.8 433 20 5.8 168 16 5.4 169 20 MW-12 5.8 540 18 5.8 545 21 6.0 511 17 6.1 522 22 6.1 305 17 5.5 180 20 5.6 135 20 5.4 196 21 MW-100S 5.71 87 15 5.5 176 22 5.6 43 17 5.8 346 21 5.8 76 15 5.7 168 20 5.7 66 16 5.2 33 18 MW-100D 6.3 1502 18 6.2 981 19 6.4 1110 17 6.3 1432 19 6.5 1067 16 6.2 662 18 6.4 718 16 6.2 905 19 MW-101 D 7.2 213 16 6.8 160 18 6.9 196 16 7.1 247 19 7.1 182 16 6.8 131 19 7.2 147 15 6.5 356 18 MW-102S 5.6 3081 18 5.9 537 21 5.9 472 19 6.0 697 21 6.1 582 18 5.8 446 231 6.2 519 17 6.1 633 21 MW-103S 5.5 240 18 5.5 184 19 5.5 195 17 5.9 319 20 6 232 16 5.9 197 20 6.2 145 15 5.6 238 18 MW-104S 5.8 362 19 5.5 363 22 5.5 306 21 5.5 349 23 5.8 429 18 5.8 183 23 6.2 928 21 6.3 395 22 MW-104D 6.3 409 21 6.1 396 21 6.3 417 19 6.3 471 21 6.3 347 20 6.3 302 21 6.3 195 20 6.0 358 21 MW-105S 5.3 89 21 5.2 78 21 5.2 86 19 5.2 91 91 5.3 103 20 5.0 78 21 5.3 76 18 5.1 109 21 MW-106S 5.6 500 14 5.8 145 23 5.7 121 13 6.1 1462 21 5.9 142 12 6.1 965 21 5.8 135 12 5.4 107 22 MW-201S 5.41 141 15 5.6 171 21 5.7 240 15 5.7 191 19 6.4 180 15 5.5 140 17 5.2 93 16 5.4 170 18 MW-202S 6.1 558 15 6.0 5451 21 6.3 555 16 5.5 198 211 6.8 493 15 5.4 176 19 5.6 418 15 6.0 531 21 MW-202D 5.7 150 15 6.0 177 22 6.0 181 16 6.0 192 20 6.9 188 15 5.8 142 18 5.7 115 14 5.81 186 22 MW-203S 5.3 138 16 5.2 162 21 5.4 166 18 5.4 151 20 6.2 125 17 5.0 114 19 5.4 83 16 5.11 136 20 MW-204S 5.3 132 15 5.3 237 20 5.4 160 18 5.5 195 19 5.6 149 16 5.8 309 18 5.1 85 16 4.9 160 20 MW-205S 6.0 1042 14 6.4 1104 221 6.2 1052 17 6.41 842 21 7.1 1145 13 6.2 587 19 6.0 3961 13 6.4 988 21 MW-205D 6.6 861 15 6.5 1015 21 6.5 873 18 6.5 681 20 7.8 97 15 6.3 401 18 6.0 402 13 6.3 764 20 MW-206D 6.5 253 16 7.4 542 19 7.2 296 18 7.5 271 21 7.4 240 11 7.4 164 17 6.8 104 16 7.3 303 18 MW-207S 5.1 146 14 5.3 173 21 5.4 159 16 5.5 161 20 5.8 135 15 5.2 125 18 5.0 89 17 5.2 140 20 MW-207D 7.3 303 16 7.3 391 19 7.4 319 18 7.4 338 18 7.4 140 16 6.8 198 17 6.7 128 18 6.7 339 19 MW-208S 5.5 186 13 6.1 946 20 6.1 535 17 6.2 746 18 6.3 193 15 5.9 404 17 5.7 186 17 5.9 533 21 MW-208D 7.31 445 16 559 19 7.5 420 19 7.3 379 17 6.1 395 16 7.3 326 16 6.5 161 17 7.6 395 18 SW-1 6.5 1337 20 -- -- 6.8 289 18 -- -- -- 7.6 127 14 -- -- -- 7.5 61 11 6.6 94 24 SW-2 7.1 236 27 d6. 114 23 7.1 122 20 7.3 240 24 6.9 176 16 7.4 182 21 6.5 109 10 6.7 80 25 SW-3 6.9 262 24 108 23 6.9 143 20 7.4 182 23 7.1 180 15 7.2 179 21 7.1 110 10 6.7 79 25 Page 2 of 3 Table 10 Historical Field Parameters Wilders Grove Landfill Notes: 2: Not sampled Deg. C: Degrees Celsius mS: Millisiemen S.U.: Standard unit Temp.: Temperature µmhos/cm: Microsiemen per centimeter " MW-10 was damaged beyond repair by operations equipment in 2011. URS is not responsible for data generated or tabulated prior to September 2013. Page 3 of 3 Table 11 Individual Well Mann -Kendall Analysis Results Wilders Grove Landfill Monitoring Well PCE TCE Vinyl Chloride Benzene 1 4-DCB 1 2-DCP 1.1-DCA 1.2-DCA Barium Cobalt Thallium 9201-MW1 ND NO ND ND ND ND ND ND S S S 9201-MW2 ND NO D D S S D D S D NT 9201-MW3 ND NO ND S S ND D S NT NT NT 9201-MW4 ND NO ND ND ND ND ND ND NT NT NT 9201-MW6 ND NO ND D D ND NT ND S NT NT 9201-MW8 ND NO ND S S ND ND ND NT NT NT 9201-MW9 ND NO ND ND ND ND ND ND I I NT 9201-MW11 ND NO ND NT NT ND ND S NT NT 9201-MW12 ND NO ND S PD ND NT S NT PI NT 9201-100S ND ND ND ND NT ND ND S NT NT S 9201-102S ND NT ND S NT D D NT I D D 9201-103S ND ND ND ND ND ND ND ND S S NT 9201-104S ND ND NT NT NT S NT NT PD D NT 9201-105S D D ND S D S D S NT I I' 9201-106 ND ND ND ND NT ND NT ND NT I S 9201-201S ND NO ND ND ND ND ND ND I I NS 9201-202S NT NT NO ND ND ND NT NO PI PD NS 9201-203S D D NO PD D ND D S S PD NS 9201-204S NT NO ND NT NT S S S 1 1 NS 9201-205S NT NO ND NT NT ND NT S NT NT NS 9201-207S D D NO ND ND NO D ND S D NS 9201-2088 NO ND NO NO PD NO D S PD S NS 9201-100D PD ND D D D S D D D D NT 9201-101D S D ND ND ND ND NT ND I NT NT 9201-104D D D �111 I I NT I NT I I NT 9201-202D S PD ND I I NT I S I I NS 9201-205D PD D D D PD D D S D I NS 9201-206D ND ND ND ND ND ND ND ND S PD NS 9201-207D D NT S S ND S I S NT NT NS 9201-208D ND ND ND ND S ND S ND D PD NS 9201-SW1 NO ND ND NT NT ND ND ND NT NT S 9201-SW2 ND ND ND ND ND ND ND ND PI PI NT 9201-SW3 ND ND ND ND ND ND ND ND NT NT S Data analyzed using MAROS Version 3.0 Data analysis period is from September 2012 to September 2018 1 = increasing; PI = probably increasing; S = stable PD = probably decreasing; D = decreasing; NT = no trend ND = not detected; NS = not sampled Bolded and shaded cells are either increasing or probably increasing and have recent concentrations above 2L or MAC standards Bolded cells are either increasing or probably increasing with recent concentrations below 2L or IMAC standards Table 12 Bulk Plume Mann -Kendall Analysis Results Wilders Grove Landfill SHALLOW WELLS Constituent Zeroth Moment First Moment Second Moment X Second Moment Y Tetrachloroethylene S I NT S Trichloroethylene S I NT D Vinyl Chloride NT S NT NT Benzene S NT NT I 1,4-Dichlorobenzene D NT S I 1,2-Dichloropropane S S NT NT 1,1-Dichloroethane D NT I NT 1,2-Dichloroethane S NT NT NT Barium I NT NT I Cobalt S I I NT Thallium NT NT NT S DEEP WELLS Constituent Zeroth Moment First Moment Second Moment X Second Moment Y Tetrachloroethylene D S PI S Trichloroethylene D S I NT Vinyl Chloride D NT S S Benzene NT I D NT 1,4-Dichlorobenzene NT S I S 1,2-Dichloropropane D S NT S 1,1-Dichloroethane S I D I 1,2-Dichloroethane D I D NT Barium NT S S S Cobalt I D NT D Thallium NC NC NC NC Data analyzed using MAROS Version 3.0 Data analysis period is from September 2012 to September 2018 1 = increasing; PI = probably increasing; S = stable PD = probably decreasing; D = decreasing; NT = no trend; NC = not calculated Shaded cells are either increasing or probably increasing Table 13 Proposed Assessment Sampling Parameters and Schedule Wilders Grove Landfill Wells: MW-1, 2, 3, 4, 6, 8, 9, 11, 12, 100S, 100D, 101 D, 102S, 103S, 104S, 104D, 105S, and 106S Analytes: Appendix I and 1,4-dioxane plus any constituents from Appendix II that were detected in previous annual event Surface Water: Two locations on Crabtree Creek and one location on perennial stream Analytes: Appendix I and 1,4-dioxane Wells: MW-202S, 202D, 203S, 205S, 205D, 206D, 207S, 207D, 208S, and 208D Analytes: Appendix 1, 1,4-dioxane, carbon dioxide, potassium, and manganese' Wells: MW-201S and 204S Analytes: Appendix I and 1,4-dioxane Frequency: Semi-annual Wells: MW-1, 2, 3, 4, 6, 8, 9, 11, 12, 100S, 100D, 101 D, 102S, 103S, 104S, 104D, 105S, and 106S Analytes: Appendix II Frequency: Annual *Carbon dioxide, potassium, and manganese would only be analyzed as required by the underground injection control permit. Once the permit is closed out, the analysis will be terminated Table 14 Proposed MNA Sampling Parameters and Schedule Wilders Grove Landfill NC 2L Parameter GPS a Timeframe Chloride 250 mg/L Every 3 years, both semi-annual events Carbon Dioxide NE Every 3 years, both semi-annual events BOD NE Every 5 years, both semi-annual events COD NE Every 3 years, both semi-annual events TOC NE Every 3 years, both semi-annual events Sulfide NE Every 3 years, both semi-annual events Sulfate 250 mg/L Every 3 years, both semi-annual events Alkalinity NE Every 3 years, both semi-annual events Total Dissolved Solids 500 mg/L Every 3 years, both semi-annual events Iron 300 Semi-annual Potassium NE Every 3 years, both semi-annual events Manganese 50 Semi-annual Nitrate (as N) 10 mg/L Every 3 years, both semi-annual events Total Fatty Acids NE Every 3 years, both semi-annual events Methane NE Semi-annual Ethane NE Every 3 years, both semi-annual events Ethene NE Every 3 years, both semi-annual events Hydrogen NE Every 3 years, both semi-annual events Proposed sampling is for MW-6, MW-100S, MW-104S, and MW-106S NC 2L = North Carolina 2L Groundwater Protection Standard NE = not established (a) = Concentrations in ug/L unless otherwise noted FIGURES r x , 4 x� xl Ix 1. EXISTING TOPO PROVIDED BY WAKE COUNTY GIS DATA, DATED SEPTEMBER 2013. Uo 2. LIMITS OF WASTE SHOWN ARE APPROXIMATE. �ju 3. GROUNDWATER ELEVATIONS MEASURED ON SEPTEMBER t 4 xE x 20-24, 2018. _ r ' gx xM 4 x LEGEND = xi . •_ •_ � � ._ � x� MW-2 p 230.6 DENOTES GROUNDWATER MONITORING = 1 xp z WELL LOCATION AND IDENTIFYING 1 x� NUMBER AND MEASURED GROUNDWATER SW-2 . U >! x ELEVATION ON REFERENCED DATE � � t MW-201 S 178.33 DENOTES ACM GROUNDWATER MONITORING WELL LOCATION AND IDENTIFYING x� MEASURED GROUNDWATER E EIMAND ELEVATION ON 1 � x REFERENCED DATE 1 r 2 3.205S 1 I x x x xp xg SW-2 DENOTES SURFACE WATER - x ® MONITORING LOCATIONS IVY-202S = xp xg AND IDENTIFYING NUMBER -174.78 ! - _ _ ` Mw-6 c x, x !x v �1� x MW-201S 201.09 x I Mw- 020 x 180.27 x N x x 174.75 ! 1D �l 1 1203.80 w MW-203S x o o p 174.2? o x 1 MW-207S � 66.05 x. 1 1 4 x 1W-207D x o !x x 150.29 x a sx x ! E >1 xf I xg x x� MW-1041) 1© sx (n\ D X �x O d •xp 188.82 x= Mw-102s A � x� � 0 214. 9 PROPERTY LINE, TYP ■ � O MW-204S Mw-104S 170.29 188.99 t • MW-103S �" 231.02 xg D 0 MW-208S-1 -M 502W D �x O M23 W-9 \� !' a• .: •� e. 165.38 MW-205S 171.68 Sw-1-v _ .17 ! � 170.69 / a • ' MW-208D p 124.90 Mw-206D 4 �� 175.97 =• •a e. •e MW-100D . e MW-100S � � ", •e l CRABTREE CREEK 1s1.7o . Mw-2 a. 189.8s � p e " • _ o e• oa C .e a 00 .e e. !• � •e MW-3 Q .a , e• � ,a •e • 200.59 ", .e "1 � fl e" 0 IN ,. 91 � ! e. i Pow a• i n 223.95 23 60 234.31 � � � . i I APPROXIMATE LIMIT OF WASTE, TYP PROPERTY LINE, Q a e .e O e• �� e •' Q Z- u e. .,'� s •, 300 150 0 300' . •, O 1 "=300'-0" a• a• DESIGNED JAB DRAWN MDW CITY OF RAL E I G H DATE ISSUED: 1 /29/19 CHECKED JABA�=COM PROJ. ENGR. JAB DEPARTMENT OF SOLID WASTE SERVICES 1600 PERIMETER PARK DRIVE, SUITE 406 SITE PLAN THE SCALE BAR BELOW MORRISVILLE, NORTH CAROLINA 27560 Fig. a 1 MEASURES ONE INCH LONG ON PHONE: (919)461-1100 1 GROUNDWATER ELEV. ASSESS. j 9/24/131 MDW THE ORIGINAL DRAWING W I L D E RS GROVE LANDFILL NO. ISSUED FOR I DATE I BY F DRAWING NUMBER 1- IWIN"AM21,1010-1 11111//oll � _ ,,, .- `sue •� S IN 1, �/ � .�-,OF r� ,/� \ / I► - , • 1.1 ��/� 1 � =►vim � �� +1� �_ �. � � �� • IS's IL gal T41 WWI 101 � I � � � �. A i 1 • 1 • - �; \�-_ �. ��. � ,�� w�ww.�wll►A1111Laww�ww. �-=---•--"^.ww� � � / . �� - ��r t'� • ��wg MON QW MARMON WE, i PIK ,it',►L �,� - , No 11 do © MOW 1 1 I I 1 x MW-202S 174.78 J 0/ I W-15 MW-202D 174.75 >c x / MW-203S 174.22 MW-207S 166.05 1 MW-207D 160.29 \ MW-208S 165.38 RABTREE CREEK DESIGNED JAB DRAWN MDW CHECKED JAB PROJ. ENGR. JAB THE SCALE BAR BELOW MEASURES ONE INCH LONG ON THE ORIGINAL DRAWING 1 GROUNDWATER ELEV. ASSESS. 9 24 13 MDW N0. ISSUED FOR DATE I BY MW-208D 124.90 IW-12 MW-204S 170.29 \i i MW-205S MW-205D 170.69 171.68 i IW-5 IW-4 M 5.9 06D / D\ 1. EXISTING TOPO PROVIDED BY WAKE COUNTY GIS DDATA, DATED SEPTEMBER 2013. 0 2. LIMITS OF WASTE SHOWN ARE APPROXIMATE. O3. GROUNDWATER ELEVATIONS MEASURED ON SEPTEMBER 1 20-24, 2018. N ?�S ?os LEGEND MW-105S M W- 2 203.20 230.6 DENOTES GROUNDWATER MONITORING WELL LOCATION AND IDENTIFYING NUMBER AND MEASURED GROUNDWATER ELEVATION ON REFERENCED DATE _ MW-201 S S a?S 178.33 DENOTES ACM GROUNDWATER MONITORING WELL LOCATION AND IDENTIFYING NUMBER AND SS MEASURED GROUNDWATER ELEVATION ON REFERENCED DATE Aw 77 MW-6 ® DENOTES SURFACE WATER 1 201.09 SW-2 MONITORING LOCATIONS ® AND IDENTIFYING NUMBER MW-201 S MW-101 D ca 180 27 203.80 W1 DENOTES INJECTION WELL ® LOCATIONS AND IDENTIFYING NMUMBER Y C> a 1^ 4D 8.82 - MW-106S 181.02 MW-100D 180.51 MW-100S 181.70 x L=com 1600 PERIMETER PARK DRIVE, SUITE 400 MORRISVILLE, NORTH CAROLINA 27560 PHONE: (919)461-1100 MW-104S 188.99 8 MW-2 \ / 189.86 �/ CITY OF RALEIGH DEPARTMENT OF SOLID WASTE SE WILDERS GROVE LANDFILL a RVICES 'n 100' 50' 0' 100' 1 "=100'-0" DATE ISSUED: 1 /29/19 INJECTION WELL LOCATIONS Fig. 3 DRAWING NUMBER