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9201_Wake_CityofRaleigh_WildersGrove_MSWLF_CAER_FID1661863_20220401
A=COM Corrective Action Evaluation Report City of Raleigh Wilders Grove Landfill Permit No. 92-01 March 31, 2022 Prepared for: City of Raleigh Solid Waste Services 630 Beacon Lake Drive Raleigh, NC 27602 Prepared by: AECOM Technical Services, Inc. 5438 Wade Park Blvd, Suite 200 Raleigh, NC 27607 T: (919) 461-1100 aecom.com Delivering a better world Corrective Action Evaluation Report Table of Contents 1. Introduction.................................................................................................................................................. 1.1 Facility Background.......................................................................................................................... 1.2 Aquifer Characteristics...................................................................................................................... 1.3 Contaminant Distribution.................................................................................................................. 1.3.1 Historical Groundwater Conditions................................................................................................... 1.3.2 Current Groundwater Conditions...................................................................................................... 1.3.3 Current Surface Water Conditions.................................................................................................... 1.4 Regulatory Status............................................................................................................................. 1.5 Limiting Conditions........................................................................................................................... 1.6 Registered Professional Statement.................................................................................................. 2. Monitoring and Injection Program................................................................................................................ 2.1 Groundwater Monitoring................................................................................................................... 2.1.1 Assessment Monitoring.................................................................................................................... 2.1.2 MNA Sampling .................................................................................................................................. 2.1.3 Corrective Action Monitoring............................................................................................................. 2.2 Surface Water Monitoring................................................................................................................. 2.3 Injection History................................................................................................................................ 3. Corrective Action Summary......................................................................................................................... 3.1 Physical and Chemical Changes In Aquifer Conditions.................................................................... 3.2 Physical and Chemical Changes In Plume Characteristics.............................................................. 3.2.1 Groundwater Trend Analysis............................................................................................................. 3.2.2 Groundwater Geochemistry .............................................................................................................. 4. Corrective Action Plan Modifications............................................................................................................ 4.1 Modifications To Selected Remedy................................................................................................... 5. References.................................................................................................................................................. Tables Table 1 Historical Assessment Monitoring Results — Volatile organic compounds Table 2 Historical Assessment Monitoring Results — Semi -volatile Organic Compounds Table 3 Historical Assessment Monitoring Results — Metals Table 4 Historical Assessment Monitoring Results — Pesticides, Herbicides, and Polychlorinated Biphenyls Table 5 Historical Corrective Action Monitoring Results — Volatile organic compounds Table 6 Historical Corrective Action Monitoring Results — Metals Table 7 Historical Surface Water Results — Volatile organic compounds Table 8 Historical Surface Water Results — Metals 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 Figures Figure 1 Site Plan Figure 2 Potentiometric Surface Map, December 10, 2021 Figure 3 Injection Well Locations AECOM Corrective Action Evaluation Report Acronyms ACM Assessment of Corrective Measures AECOM AECOM Technical Services, Inc. ASD Alternative Source Demonstration bgs Below ground surface CAP Corrective action plan COC Contaminant of concern DO Dissolved oxygen GQS Groundwater Quality Standard IMAC Interim Maximum Allowable Concentration LFG Landfill gas MAROS Monitoring and Remediation Optimization System mg/L Milligrams per liter MNA Monitored natural attenuation MSW Municipal solid waste mV Millivolts NC 2B standard Title 15A North Carolina Administrative Code 02B Standard NCDEQ North Carolina Department of Environmental Quality ORP Oxidation reduction potential ppb Parts per billion Site Wilders Grove Landfill SVOC Semi -volatile organic compound SWSL Solid Waste Section Limit VOC Volatile organic compound AECOM Corrective Action Evaluation Report 1. Introduction This report has been prepared for submittal to the North Carolina Department of Environmental Quality (NCDEQ) by AECOM Technical Services, Inc. (AECOM) on behalf of the City of Raleigh Solid Waste Services. The report provides a summary of the groundwater monitoring results since the injection activities were suspended for a 3-year demonstration per an NCDEQ letter dated February 21, 2019, for the Wilders Grove Landfill (Site). This report evaluates if additional direct oxidation injection events are warranted. 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 has been expanded/modified since. 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 to 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. A groundwater elevation map depicting groundwater flow to the south is included as Figure 2. 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 (COC) 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), semi -volatile organic compounds (SVOCs), metals, and pesticides, herbicides, and polychlorinated biphenyls for assessment monitoring wells are summarized in Table 1, Table 2, Table 3, and Table 4, respectively. Inorganic compounds have also historically been detected at concentrations exceeding their SWSL or GQS since January 2010. Historical groundwater analytical concentrations for VOCs, and metals for the corrective action monitoring wells are summarized in Table 5 and Table 6, respectively. 1.3.2 Current Groundwater Conditions Water samples were collected from 30 monitoring wells and 3 surface water locations as part of assessment and corrective action monitoring in September 2021. Prior to purging and sampling activities, the static water levels were AECOM 1 Corrective Action Evaluation Report gauged in each well to evaluate groundwater flow direction. Results of the September 2021 monitoring event indicate that COC concentrations are generally stable or decreasing in most wells and were consistent with historical results. 1.3.3 Current Surface Water Conditions Cobalt, copper, and lead were detected above their respective surface water standards in at least one of the samples collected during the September 2021 sampling event. Current and historical surface water analytical concentrations for VOCs and metals are summarized in Table 7 and Table 8, 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. Subsequently, a corrective action plan (CAP) for the facility was submitted in December 2010 (Hazen and Sawyer, 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. AECOM 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, AECOM. 1.6 Registered Professional Statement I, Jasen Zinna, P.E., a Professional Engineer for AECOM, do certify that the information contained in this report is correct and accurate to the best of my knowledge. Jasen Zinna, RE License # 04022 Date March 31, 2022 AECOM 2 Corrective Action Evaluation Report 2. 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 detailed in the following subsections. 2.1.1 Assessment Monitoring Assessment groundwater monitoring has been conducted on a semi-annual basis through September 2021, with the exception of annual sampling in 2014. Assessment monitoring currently includes the semi-annual sampling of 18 compliance groundwater monitoring wells: MW-11, MW-2, MW-3, MW-4, MW-6, MW-8, MW-9, MW-11, MW-12, MW-100S, MW-100D, MW-101 D, MW-102S, MW-103S, MW-104S, MW-104D, MW-105S, and MW-106S. Each groundwater sample is analyzed for all constituents listed in Appendix I plus the additional constituents listed in Appendix 11 that were detected during the preceding sampling event semi-annually and all constituents listed in Appendix 11 annually. Additionally, 1,4-dioxane has been added to the sampling list beginning with the September 2018 event per SWSL memo dated May 29, 2018. 2.1.2 Monitored Natural Attenuation 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 carbon/biochemical oxygen demand/chemical oxygen demand, carbon dioxide, alkalinity, chloride, hydrogen, and volatile fatty acids. Historical MNA analytical data is summarized in Table 9. 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 monitoring 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 history 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 semi-annually for parameters included in the approved 2019 Corrective Action Evaluation Report. 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 were sampled for these parameters historically. Historical direct oxidation analytical data is summarized in Table 9. AECOM 3 Corrective Action Evaluation Report 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-203S; 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. 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. AECOM 4 Corrective Action Evaluation Report 3. 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-202D, MW-203S, MW205S, MW-205D, MW-206D, MW-207S, MW-207D, MW-208S, and MW-208D. 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-202D, MW-203S, MW-204S, MW-205S, MW-205D, and MW-206D, 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 following an injection. 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 (DO), 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. 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 • 1,4-dioxane • 1,1-dichloroethane • Tetrachloroethene • Vinyl chloride • Trichloroethene AECOM 5 Corrective Action Evaluation Report Additionally, the following inorganic constituents are considered COCs: Benzene 1,1-dichloroethane 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 2021 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 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/IMAC or have no detections that can impact trends. The only instances of increasing trends or possibly increasing trends above applicable GQS or IMAC are benzene at MW-11 and cobalt at MW-104D and MW-9. Additionally, cobalt is above the Title 15A North Carolina Administrative Code 02B Standards (NC 2B standard) at surface water sample SW-1 and has an increasing trend. 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: 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 north i ng/easti ng 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. Shallow wells exhibited an increasing plume mass (zeroth moment) for site COC 1,2-dichloroethane. An increasing first moment (center of mass location) trend was observed for benzene, 1, 1 -dichloroethane, 1,2-dichloroethane, tetrachloroethene, trichloroethene, barium, and cobalt, and a 'probably increasing' trend was observed for 1,4-dichlorobenzene. Several compounds, including vinyl chloride, 1,2-dichloropropane, 1,1-dichloroethane, 1,2-dichloroethane, and thallium also had increasing second moment trends over the analysis period. The increasing zeroth moment trend for 1,2-dichloroethane will continue to be monitored as currently there are no exceedances of AECOM 6 Corrective Action Evaluation Report the GQS in any wells. It should be noted that during a majority of the sampling events, 1,2-dichloroethane has been non -detect. 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. These changes in plume dimension pose a minimal risk of off -site transport as only cobalt, 1,4-dioxane, and thallium exceed their respective GQS in shallow wells near the creek. Cobalt was detected in surface water samples SW-1, SW-2, and SW-3, and exceeded standards at SW-1 during the sampling period, which will be monitored closely in the future. For deep wells, barium, benzene, cobalt, and thallium had increasing plume mass trends over the zeroth moment analysis period. Benzene and 1,4-dichlorobenzene had increasing trends and vinyl chloride had `probably increasing' trends over the first moment analysis period. 1,4-Dichlorobenzene and 1, 1 -dichloroethane had increasing trends over the second moment analysis period. The increasing zeroth moment trend for benzene and cobalt will continue to be monitored as two wells currently have at least one constituent above the GQS. 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 antimony/vanadium 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, antimony did not exceed the NC 2B standard, and vanadium does not have a surface water standard. 3.2.2 Groundwater Geochemistry The geochemistry data collected as part of groundwater monitoring suggests that conditions within the groundwater are primarily aerobic/oxidizing. The average DO for all monitoring well data during the analysis period was 2.0 milligrams per liter (mg/L) (median 1.0 mg/L), and the average ORP was 137 millivolts (mV) (median 116 mV), which is also indicative of aerobic conditions. AECOM 7 Corrective Action Evaluation Report 4. 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 parts per billion (ppb) of tetrachloroethene and 4.5 ppb of trichloroethane in March 2014. However, since 2019 the concentration of both tetrachloroethene and trichloroethane have been decreasing without performing any injections. Historically, after an injection at the Site, the concentration of tetrachloroethene had decreased to below detection levels, but still sporadically exceeded its GQS of 0.7 ppb. It is expected that additional oxidant injections will not further reduce tetrachloroethene concentrations because the concentrations are already low. Thus, it is proposed to only perform MNA evaluation 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). 1,4-Dioxane, cobalt, antimony, and vanadium are currently the only compounds that are consistently detected above its GQS or IMAC in groundwater monitoring wells located closest to Crabtree Creek (MW-207 and MW-208). However, those metals are also detected in the upgradient surface water sample (SW-2). Therefore, it is possible that the source of these metals in groundwater may be due to another source apart from the landfill or naturally occurring. Aformer 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 later in 2022 for approval in order to prepare an ASD report for the Site. AECOM proposes to continue to perform MNA sampling and analysis on an approximate annual basis and cease the semi-annual sampling events. In order to capture potential seasonal variability AECOM proposes to perform the annual sampling events approximately every eleventh month. 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-106S) have either been low or non -detect and the downgradient boundary probes (B-56 and B-58) have not had methane gas detected in them. AECOM 8 Corrective Action Evaluation Report 5. References Hazen and Sawyer, 2008. Assessment of Corrective Measures. October 2008. Hazen and Sawyer, 2010. Corrective Action Plan. December 2010. AECOM Corrective Action Evaluation Report Tables AECOM 10 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill _ 0 r CO) 0 C 0 O a 0 < 0 CD 0 C E O O O O m A ES d O E O m wO E O CD 0 c O E CD Y W O r 0 y M O A 0 O O L O A 0 c 0 O O 0 E O C 0. O O R L N O E a 0 0 c Q O ° ac OE L U O C A L O N 0 R O E = 0 C 0 N 7C1 N C 0 N 7C1 M C 0 N 7C1 N O O ' w 0 0 E O` w£ NO ° O C yLyE O G LL. C L y OO N O C C1 0 0 C R L ° Qr_ 0 C R L u Nr 0 C y L ° Gr C 0 tll 0 0 O ° tm N C` 0 C 0 O. O N0.O L Gu 0 C 0 O. O Ma O Ls GuO NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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-1AA 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 U U 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 MW-1 3-Apr-19 6.2J U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-1 3-Sep-19 U U U U U U U U U U U 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 9-Mar-20 U U U U U U U U U U U 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 1-Sep-20 5.6J U U U 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-21 U U U U U U U U U U U 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 20-Sep-21 U U U U U 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill C O N CO) 0 N N 0 L C? o O c O p y •` O N O m C C M W W d N S C R d N c L' O o 0 Q O C `0 sC N tm N d N ' L ID _ tA Z •?Q O O O- �` U! _ uF _ uFN a�i G G H C 7 O46 H _ a Ho u (M d 0_ u d uN0_ H d ° F d R E H 41 c ° O 0X > m > O X4mt d'{ E T~NN 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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-1AA 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 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 MW-1 3-Apr-19 U U U U U U U U U U 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 3-Sep-19 U U U U U U U U U U 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 9-Mar-20 U U U U U U U U U U 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 1-Sep-20 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-21 U U U U U U U U U U 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 20-Sep-21 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O r E N co 4) r r- N c 4) O C y CD N C L t E O m 10 ES Y7 C L V E O m E E CD E O E O m Y 4'N 7 CD M N O O 4) N O O Op O N E O C 0. O d R L t O E 0 O a Q O ° O O O O O ` LR O E 0 C a71 C a71 u C 71 a u N O O C N 7d m d R 41 O w O C yLy C1 N is C L nO O C OC1 O N u N N NN u N N u C u OO N a N tO` O N CC a C O. NMOQO L4 Gu a C .E OO6O LMN Gu NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 0.801 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 0.801 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 0.601 U U U U U MW-2 20-Sep-18 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 10.70 U U U 0.62 U U U 0.05J U MW-2 4-Apr-19 6.OJ U U U U 1.0 U U U U U U U 6.2 U U U U U U U U 0.31J U 5.1 U U U U U U U U U MW-2 3-Sep-19 5.2J U U U U 1.1 U U U U U U U 8.3 U U U U U U U U 0.33J 0.12J 3.9 U U U U U U U U U MW-2 10-Mar-20 U U U U U 1.3 U U U U U U U 7.9 U U U U U U U U U U 5.8 U U U U U U U U U MW-2 31-Aug-20 U U U U U 0.87J U U U U U U U 6.8 U U U U U U U U 0.30J U 4.3 U U U U U U U U U MW-2 15-Mar-21 6.3J U U U U 0.53J U U U U 2.9J U U 3.9 U U U U U U U U 0.16J U 2.5 U U U U U U U U U MW-2 21-Se -21 4.OJ U 0.91J U U U U U U U 9.7 U U U U U U U 0.40J U 4.5 U 0.50J U U U U U U Page 3 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill r 'C O 2 N a N CO) 0 L V G N N d 0 L O G o 2 M N O c o p y L ` 2 O d rO X O ' N L T L W m m L T L W m o V N d 2 m C N N 2 N c w d O 'O 2 o u Q L O w b Z' A L N 2 M `0 U A L N 2 2 s 2 T L N 2 0 :° c a N t N 2 V c A s t A Z m ~ •O o Oy a C .�`. U) d c o o t F N d c o o t F N N d (D 0 O V d H C 7 O H a o 0 V H N d d 0 0 V H d d o o V H N d c t O O S O H y R d E 0 O L 0 H C a 0. o C1 F M N U Q T C_ > m 4 t U T C_ > c T % O E y X 1 E '6 .. N d T K 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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^A 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 0.80J U MW-2 20-Sep-18 U U U U 35.60 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 MW-2 4-Apr-19 U U U U 20 U U U U U 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 3-Sep-19 U U U U 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 MW-2 10-Mar-20 U U U U 22 U U U U U 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 31-Aug-20 U U U U 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 MW-2 15-Mar-21 U U U U 13 0.40J U U 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 MW-2 21-Sep-21 U U 7.4 U U U U U U U U U U U U U U U U U U U U U Page 4 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O r E N co 4) r r- N c 4) O C y CD N C L t E O m 10 ES Y7 L V E O m E CD E O E O m Y 4'N 7 CD M N O O N O O Op O N Z. E O C 0. O d R L t O E 0 O a Q O ° O O O O O L O E 0 C a C a u C 1 u N O O C N m d R 41 O w O C yLy is C L nO O C O N u N u N u C OO u N a N tO` O N CC a C O. NMOQO L4 Gu a C .E OO6O LMN Gu NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1) 20 200 6 NE 1000 NE 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 MW-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 0.801 U U U U U U U U U U U U U U U U 0.501 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 0.501 U 14.50 U U U U U U U U U MW-3 15-Mar-16 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 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 1.80J 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 MW-3 4-Apr-19 U U U U U 0.26J U U U U U U U 0.84J U U U U U U U U U U 2.0 U U U U U U U U U MW-3 4-Sep-19 4.OJ U U U U 0.49J U U U U U U U 1.0 U U U U U U U U 0.25J U 4.9 U U U U U U U U U MW-3 10-Mar-20 U U U U U 0.81J U U U U U U U 1.3 U U U U U U U U U U 5.4 U U U U U U U U U MW-3 2-Sep-20 U U U U U 0.52J U U U U U U U 1.1 U U U U U U U U 0.28J U 7.6 U U U U U U U U U MW-3 15-Mar-21 U U U U U 0.86J U U U U U U U 0.82J U U U U U U U U 0.23J U 5.5 U U U U U U U U U MW-3 20-Sep-21 U U 1.2 U U U U U U U 1.1 U U U U U U U 0.19J U 5.2 U U U U U U U U Page 5 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill r 'C O r2 N a N CO) 0 L V G N N d 0 L O G o M N O c o O p y L ` 2 ... O d X O 9 ' v N L T L W m m L T L W m o V N d 2 m C N N 2 N c w d O 'O 2 o u Q L O w b o Z' A L 2 M `0 U a L r2 2 s rL T L r2 0 :° c a N t N V c A s t Z m ~ •O o a C U) d c o 0 t F N d c o 0 t F N N d m 0 O V d H C 7 O H a o 0 V H N d d 0 0 V H d d o o V H N d c t O O t O H y R d E 0 O L H C a 0. o C1 F M N U Q T > m 4 L U a > N a O E 0 X C E 4 .... N N 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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 MW-3 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 MW-3 4-Apr-19 U U U U U U U U U U 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 4-Sep-19 U U U U 1.81 U U U U U U U U U U U U U U U U 0.29J U U U U U U U U U U U MW-3 10-Mar-20 U U U U U U U U U U 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 2-Sep-20 U U U U U U U U U U 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-21 U U U U U U U U U U 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 20-Sep-21 U U U U U U U U U U U U U 0.16J U U U U U U U U U U Page 6 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O r E N co N r r- N c N O C y CD N C L t E O m 10 ES Y7 C L V E O m E E CD E O E O m Y d 7 CD N M N O O ry N O O Op O N E O C 0. O d R L t O E 0 O a Q O ° O O O O O ` LR O E 0 C a71 C a71 u C 71 a u N O O C N 7d m d R 41 O w O C yLy C1 N is C L nO O C OC1 O N u N N NN u N N u C u OO N a N tO` O N CC a C O. NMOQO L Gu a C .E OO6O LMN Gu NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1) 20 200 6 NE 1000 NE 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-4AA 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 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 U U MW-4 3-Apr-19 U U U U U U U U U U U 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 3-Sep-19 4.3J U U U 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 11-Mar-20 U U U U U U U U U U U 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 31-Aug-20 U U U U U U U U U U U 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 16-Mar-21 U U U U U U U U U U U 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 20-Sep-21 U U U U U 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O r2 CO) 0 N N d 0 L O G o N O c p L 2 ... O X O 9 ' N W m W m 2 M N N O 2 o >. O w b 2 M `0 r2 2 r2 0 :° c V c Z a U) d c o 0 t F d c o 0 t FN d m 0 V H 7 H a o 0 V d d 0 V0 d d o VNo d c tSO H y R d E 0 L H C a 0. C° MG N U mT_ > m L vT_ > cV a O XEo O. E .dN... T K 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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-4AA 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 0.901 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 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 MW-4 3-Apr-19 U U U U U U U U U U 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 3-Sep-19 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 11-Mar-20 U U U U U U U U U U U U U U U 4.7 U U U U U U U U U U U U U U U U U MW-4 31-Aug-20 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 MW-4 16-Mar-21 U U U U U U U U U U U U U U U 0.42J U U U U U U U U U U U U U U U U U MW-4 20-Sep-21 U U U U U U U U 0.73J U U U U U U U U U U U U U U U Page 8 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O 2co N r Q Q d Q c Q N O Q C y CDm N C t E O A ES d C L V E O m E E CD0] N C E E O Y O 7 CDE N r- W M U N O O 0 U ry N O S U O t U Op O t U N Z. E O t U C 0. O t U d R L t O E = 0 M N a Q O ° O O N L U O O O L` N LR O E = 0 C a L N C a L u M C a L u O N O O d C N ` 7 .. m d R 41 O N O C LyLy C1 isLL. C L nO O C C1 O LL. N N u N N u N N N u r uO N 'O a N tO Ow N CC a C O. MOQO L Gu a C .E LN OO6O Gu NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1) 20 200 6 NE 1000 NE 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 0.50J 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 0.50J 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 U U 1.20 U U U U U U U U U MW-6 5-Apr-19 8.2J U U U U U U U U U U U U U U U U U U U U U U U 1.0 U U U U U U U U U MW-6 04-Sep-19 U U U U U U U U U U U U U 0.20J U U U U U U U U U U 0.68J U U U U U 0.24J U U U MW-6 9-Mar-20 6.8J U U U U 0.191 U U U U U U U 0.35J U U U U U U U U U U 1.1 U U U U U 0.26J U U U MW-6 2-Sep-20 U U U U U U U U U U U U U 0.26J U U U U U U U U U U 0.961 U U U U U 0.351 U U U MW-6 16-Mar-21 U U U U U U U U U U U U U U U U U U U U U U U U 0.28J U U U U U U U U U MW-6 22-Se -21 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 U Page 9 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O r2 CO) 0 N N d 0 L O G o N O c p L 2 ... O X O 9 ' N W m W m 2 M N N O 2 o >. O w b 2 M `0 r2 2 r2 0 :° c V c Z a U) d c o o t F d c o o t FN d (D 0 V H 7 H a o 0 V d d 0 V0 d d o VNo d c tSO H y R d E 0 L H C a 0. C° MG N U mT_ > m L vT_ > cV a O XEo O. E .dN... T K 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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 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 MW-6 5-Apr-19 U U U U U U U U U U 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 04-Sep-19 U U U U 6.0 U U U U U 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 9-Mar-20 U U U U 6.5 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 U U MW-6 2-Sep-20 U U U U 5.0 U U U U U U U U U U U U U U U U U U U U 0.25J U U U U U U U MW-6 16-Mar-21 U U U U U U U U U U U U U U U U U U U U U 0.21J U U U U U U U U 0.11J 0.27J 0.38J MW-6 22-Sep-21 U I 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 Page 10 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill a' O C O 2co .d+ G A N N O Q N N O Q O O Q N O Q C O Q y M N C L 0 O E O CD 10 ES Y7 0 O O E CD E CD d L O E CD Y W O N y 9 U N O O L U ry O t U O U OO U G1 O U O U d R L N O O C E 0 N 0 0 L U O C L O 0 N N R E 0 C N N 7�1 O N C N N 7�1 M C N N 7�1 O O N O O u C ` j a+ m d R 41 E 2 .2 O ` O C yLyE C1 O LL. C L y 0 C C1 O LL. N C l6 L N C l6 L N N C N L r N O C tN N O a N O O u C ` a C M O. O O OO 0 N a C N O. O OO O M NC 2L Standard 6000 NE 4 (1) NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 (I) 20 200 6 NE 1000 NE 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^A 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 0.801 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 0.801 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 0.37J U 1.03 U U U U U U U U U MW-8 3-Apr-19 U U U U U U U U U U U U U 0.27J U U U U U U U U U U 0.22J U U U U U U U U U MW-8 03-Sep-19 4.4J U U U U U U U U U U U U 0.17J U U U U U U U U U U 0.25J U U U U U U U U U MW-8 10-Mar-20 U U U U U U U U U U U U U U U U U U U U U U U U 0.34J U U U U U U U U U MW-8 1-Sep-20 49J U U U U U U U U U 2.2J U U U U U U U U U U U U U 0.181 U U U U U U U U U MW-8 15-Mar-21 2.5J U U U U U U U U U U 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 20-Sep-21 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 Page 11 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill r 'C O 2 N a N CO) 0 L O G N N d 0 L O G o M N O c o O p y L ` 2 O d r x O ' v2 a L T L W m m L T L W m o V N 2 m C N N 2 N c w d O 'O 2 o u Q L O w b o Z' A L N 2 M `0 U A L N 2 2 s 2 T L N 2 0 :° c a N t N 2 V c A s t A Z m ~ •O o y a C „T, U) d o o t F N d o o t F N N d (D 0 O V Gi H C 7 O H a o 0 V H N d d 0 0 V H _ d d o 0 V H N _ d c s0 O _O s .O H d R d E 2 O L O H C a 0. ° C1 H M N R V Q T > v t U a > N a O d m X C E .... N N 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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^A 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 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 MW-8 3-Apr-19 U U U U U U U U U U 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 03-Sep-19 U U U U U U U U U U 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 10-Mar-20 U U U U U U U U U U 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 1-Sep-20 U U U U U U U U U U 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-21 U U U U U U U U U U 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 20-Sep-21 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 4 r y O. N co N C - C O ) C y CD N A L t O O E C L w C L V E m w E CD E O E m Y d C N N MO U O O U ry C N a O U O U p O U E O U C a O U C L t O E O G O? Q° GO -U O O G R O E 0 C C C 1 O+ N ` m d R N ° w NO O C LyLy C is L n O C CO O N GdCu N GdCu N GdCu N c uO N O a N rO N C C O. MOcu O L C? C .E OOau LN Oa C? M NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 U U U U U U U U U U U U U U U U U U U U MW-9 5-Apr-19 U U U U U U U U U U U 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 4-Sep-19 6.3J U U U 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 9-Mar-20 U U U U U U U U U U U 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 3-Sep-20 5.2J U U U U U U U U U U U U U U U U U U U U U U U U U U MW-9 15-Mar-21 U U U U U U U U U U U 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 21-Sep-21 U U U U U U U U U U U U U U U U U U U U U U U U U U-L U U U Page 13 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill r 'C O 2 N a N CO) 0 L V G N N d 0 L O G o 2 M N O c o p y L ` 2 O d rO X O ' v N L T L W m m L T L W m o V N d 2 m C N N 2 N c w d O 'O 2 o u Q L O w b o Z' A L N 2 M `0 U A L N 2 2 s 2 T L 2 0 :° c a N t N V c A s t Z m ~ •O o a C U) d c o o t F N d c o o t F N N d (D 0 O V d H C 7 O H a o 0 V H N d d 0 0 V H d d o o V H N d c t O O t O H y R d E 0 O L 0 H C a 0. o C1 H M U Q T > m 4 t U a > N a O E 0 X C E 4 .... N N 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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 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 MW-9 5-Apr-19 U U U U U U U U U U 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 4-Sep-19 U U U U U U U U U U U U 0.23J U U U U U U U U U U MW-9 9-Mar-20 U U U U U U U U U U 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 3-Sep-20 U 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-21 U U U U U U U U U U 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 21-Sep-21 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill C O r E N co N r r- N c O C y CD N A L t E m C L w C L V E O m E E CD E O E O m Y d 7 CD N M O O ` y C N O O Op O E O C 0. O C L t O E 0 O a Q O ° O O O O L` O R O E 0 C C C 1 N C N 7 m d R N O w O yLy C1 N is L y nO O OC1 O N NCu N NNCu N NCu N u OO N a N tO` O N CO C O. L GNMOQOu C .E OO6Ou LGMN NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70(1) 20 200 6 NE 1000 NE 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 Page 15 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill r 'a O 2 N a N CO) 0 L O G N N d 0 L O G o 2 M N Q c o p to L ` 2 .+ O d rO X O 0 ' N L T L W m m L T L W m o V N d 2 m C N N 2 N c w d O 'O 2 o u Q L O w b Z' A L N 2 M `0 U A L N 2 2 s 2 T L N 2 r 0 :° c a N t N 2 V c A s t A Z m ~ •O o Oy a C .�`. U) c _ o 0 t F N c _ o 0 t F N N d m 0 O V d H C 7 O H a o 0 V H N d d 0 0 V H d d o o V H N d c t O O S O H y R d E 0 O L 0 H M a 0. o C1 H M U Q T > m 4 t U T > N T O E y X 1 E '6 .. N d K 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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 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 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 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 14 MW-10 26-Sep-11 - - - - - - - - - - - - -- -- - - -- - -- - -- -- -- -- - -- I - Page 16 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill co Y 47 4 r N 4 4 4 m O < m N C L t ° O E O 10 ES Y7 C O V O E O E m _ O E m Y O N O O 4) N O U O O O c 4) O C a O R L O O E O 0 ? ° Q O • O O O rR Om E 0 C aN71 C aM71 C O71 a N O ° G m d R 41 ° wN O O c yLyO is C L O c0 O N N N c 17 N a N rO ua N CE a C O. O GMOcu L N a C .E OOau O LGN M NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 0.801 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 0.801 1.101 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 0.801 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 0.811 U U U U U U U U U U 0.40J U U U 0.02J U U U U U MW-11 4-Apr-19 U U U U U 1.0 U U U U U U U 2.0 U U U U U U U U U U 1.3 U U U U U U U U U MW-11 3-Sep-19 9.1J U U U U 1.2 U U U U U U U 1.8 U U U U U U U U U U 1.1 U U U U U 0.20J U U U MW-11 9-Mar-20 6.5J U U U U 1.8 U U U U U U U 2.1 U U U U U U U U U U 0.94J U U U U U U U U U MW-11 1-Sep-20 U U U U U 1.5 U U U U U U U 2.2 U U U U U U U U U U 1.5 U U U U U 0.28J U U U MW-11 15-Mar-21 3.4J U U U U 1.6 U U U U U U U 2.0 0.52J U U U U U U U U U 1.2 U U U U U 0.20J U U U MW-11 20-Sep-21 I U U 2.0 1 U U U U U U U 1 2.2 1 0.82J U U U U U U U U 0.98J U U U U U 0.29J U U Page 17 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O r co 0 G N N d 0 L O G o q N 0 c = �j p C O " O d K O G It m T L W d 10 T L W d d m R N d S N c 'O G o 0 c Q O N °_' G7 2 M `o 0 r Z r r 0 :° N V c Z : •' O O . U! _ o 0 i F _ o 0 i F d m MO C a 0 u VO N d d u0 d d uNo d tsOO O d R d E OO LQ M a CF0. f MN N QuTC > tU4o maC > 1 O . E T.Nd. K 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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 MW-11 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 MW-11 4-Apr-19 U U U U U U U U U U 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 3-Sep-19 U U U U U U U U U U U U U U U U U U U U U 0.24J U U U U U U U U U U U MW-11 9-Mar-20 U U U U U U U U U U 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 1-Sep-20 U U U U U U U U U U 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-21 U U U U U U U U U U 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-21 I I I U U U U U U I U U U U U U U 0.11J U U U U U U U U U U Page 18 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill d3 r O r2 ❑my O. @ co Y@c Q dYE Q d_ Q c O Q s°O Q O y co O @ 0/ O LO E m L E O :E UO E m E O E m m UUO E m c @ N O @ U L `N _@ O U c U O o L U m O o L U E p O o L U E O ` L U CL O o L U d L O O :E O E 2 ❑ EcE `O 0 0 U 0 N O E= 2 ❑ N o 0 N N 0 0 17 N 0 0 7 N 00 O U 0 m c m L n .. co❑ L O 0 NO O EO C s° I @ E O p ° U w ❑ N o U N 0 U N N 0 N Q O N N U d L O O E N L d LOO. O. 0 0 N d . LO OO.O 00 0NN A NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 (1) 4000 1 700 0.3 1 50 3000 70 1 3 NE 0.4 1 0.04 0.02 70 (I) 20 200 6 NE 1000 NE 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 11.501 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 11.50J U U U U 0.54J U U U U U U U 2.32J U U U U U U U U 0.63J U 1.45 U U U 0.03J U U U U U MW-12 3-Apr-19 440 U U U U 1.6 U U U U 59 U U 6.8 U U U U U U U U 1.8 0.40J 5.0 U U U U U U U U U MW-12 3-Sep-19 440 U U U U 1.7 U U U U 57 U U 6.5 U U U U U U U U 2.0 0.40J 4.4 U U U U U U U U U MW-12 9-Mar-20 27J U U U U 1.0 U U U U 3.4J U U 4.7 U U U U U U U U 1.4 0.28J 3.1 U U U U U U U U U MW-12 1-Sep-20 27J U U U U 1.1 U U U U 2.OJ U U 5.6 U U U U U U U U 1.8 0.36J 3.6 U U U U U U U U U MW-12 15-Mar-21 52 U U U U 0.82J U U U U 7.1J U U 4.1 U U U U U U U U 1.1 0.21J 2.4 U U U U U U U U U MW-12 20-Sep-21 U U 1.1 U U U U U U U 6.7 U U U U U U U 1.8 0.30J 2.9 U U U U U U U U Page 19 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill a O 2 CO) 0 G N N d 0 L.2 o N Q c to 2 .+ O r0 X O ' N W m W m U N x 2 x a,O N O 2 o w b A 2 M `0 2 2 s 2 r 0 :° c a V c A Z Op a U) c _ o 0 t F c _ o 0 t F d m H H a o 0 V Ci d d 0 V0 d d o Vo d c tO O H y R d E 0 O H M a 0. CF° ci U Qm > m vt:..) > y a % O XEo O. E .Nd... T K 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 (1) 0.2 0.7 600 70 200 0.6(1) 3 2000 0.005 88 (1) 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 MW-12 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 MW-12 3-Apr-19 U U U U U U U U U U 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 3-Sep-19 U U U U U U U U U U 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 9-Mar-20 U U U U U U U U U U 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-Sep-20 U U U U U U U U U U 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-21 U U U U U U U U U U 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 20-Sep-21 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 20 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 4 C r y N co r Q d O N CD N C L t U O E O 10 ES Y7 C L V E O m E O E O CD E O E O m Y ' c N C N O O C N a O O Op O L E O C a O d R L t O E 0 a Q O O NO O O IVw E 0 C C C N O O C N m d R 41 O C yLy is C L O C O N N N r NU a N OO O` NO CE a C O. LGNMOOu a C .E OOOu LGMN NC 2L Standard 6000 NE 4 I 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 20 200 6 NE 1000 NE 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 U U U U U U U U U U U 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 4-Apr-19 U U U U U U U U U U U 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 4-Sep-19 U U U U 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 10-Mar-20 U U U U U U U U U U U 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 3-Sep-20 U U U U 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-21 U U U U U U U U U U U 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-21 U U U U U 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y C r N co 0 O L G N N 0 O L G N o O t O c N o p to ` O •O d O of C W 10 m r W of m c O V d C 2 N a O 'O 0 0 O N °_' •`• o L Gi 0 t U LC Gi 2 A s L d :4 N a ai a A Z m a C U) d cc ° U d cc ° U a�i 0 f H H = a 0 N d 0 N d o d s OV H m E O U H c o 2 nj y > y a > %O O N °E E Na..l. NN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 MW-100S 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 U U U U U U U MW-100S 4-Apr-19 U U U U U U U U U U 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 4-Sep-19 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 10-Mar-20 U U U U U U U U U U 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 3-Sep-20 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-21 U U U U U U U U U U 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-21 I I 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 Page 22 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill N 3 0 C O 22 0 S E A co 0 C Y7 U Q y .� .� N U Q = 0 U Q L r .O r U Q v O U T -_ Q 0 C 0 m L 0 O O t O E O m 0 t U O E O m E O E O m 0 0 t. 0 O E O m Y W 0 m 7 m N .O w y O 0 0 O L O ` F A 0 0 N 0 O O S 0 .s+ O O t 0 E O O t 0 0 R L 0 O O t 0 O O t 0 0 R 0 0 G U E a 0 0 O a 0 O a 0 0 `p N L U L O 0 a 0 N 0 R N E E Q = 0 N C 0 O O U 0 N N C 0 O O U 0 M N C 0 O O U O O O 2 0 C C 0 ` 7 ,. m 0 R E O .2 :5 N O C L 0 U 0 LL. y E p O =^ O C L 0 U 0 LL. C L 2 O U 0 C L O U 0 N C L O U 0 0 4) 0 O -LU N n 0 0 0 O O .2 C ` C 0 O O O U 0 N C 0 O O O U 0 M NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 0.801 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 0.501 U U U U U MW-100D 22-Mar-17 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 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 0.501 U U U U U MW-100D 20-Sep-18 U 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 U U U 0.056J U U U 0.07J U MW-100D 4-Apr-19 6.2J U U U U 1.2 U U U U U U U 2.2 U U U U U U U U 0.36J U 5.1 U U 0.72J 1.2 U U U U U MW-100D 4-Sep-19 3.9J U U U U 0.96J U U U U U U U 1.4 U U U U U U U U U U 1.6 U U 0.45J 0.881 U U U U U MW-100D 10-Mar-20 U U U U U 0.77J U U U U U U U 1.8 U U U U U U U U U U 3.5 U U U U U U U U U MW-100D 3-Sep-20 7.3J U U U U 0.71J U U U U U U U 1.8 U U U U U U U U 0.25J U 3.5 U U U U U U U U U MW-100D 16-Mar-21 U U U U U U U U U U U U U U U U U U U U U U U U 3.3J U U U U U U U U U MW-100D 22-Sep-21 I 2.4J U 0.73J U U U U U I U U 1.8 1 U U U U U U U 0.24J U 3.3 1 U U U U U U U U Page 23 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y 3 C r N co M 0 O L N N d 0 O L 0. o O t 0 c m o p toL ` O " O d O d C W d 10 m d ' W d m 3 c O V d C NA c O 'O 0 s w0 n O °_' •`• o i 0 s U C i 2 A s dcc C :° N a 0. Z m O a C U) C ° U F ccd ° U F d a�i 0 f H H a 0 d 0 d d o N d s O H R d E O �GX"0 U H o c o U nj y U > y a > a %O O N °E .X6 E NN TN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 MW-100D 20-Sep-18 U U U U 48.10 U U U U U U U U U U U U U U U U U U U U U U U U 0.31 U MW-100D 4-Apr-19 U U U U 66 U U U U U U U U U U U U U U U U 0.181 U U U U U U U 0.64J U U U MW-100D 4-Sep-19 U U U U 65 U U U U U 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 10-Mar-20 U U U U 39 U U U U U 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 3-Sep-20 U U U U 28 U U U U U 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 16-Mar-21 U U U U 30 U U U U U 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-Sep-21 U U 26 U U U U U U U U U U U U U U U U U U U U U Page 24 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3 0 C O 22 0 S E N h 0 Y7 U Q y .� � N U Q = 0 U Q L r .O r U Q v O U T -_ Q 0 C 0 m L 0 O O t O E O m 0 t U O E O m E O E O m 0 0 t. 0 O E O m Y W 0 m 7 m N .O w y O 0 0 O L O ` F A 0 0 N 0 O O S 0 .s+ O O t 0 E O O t 0 0 R L 0 O O t 0 O O t 0 0 R 0 0 G U E a 0 0 O a 0 O a 0 0 `p N L U L O 0 a 0 N 0 R N E E Q = 0 N C 0 O O U 0 N N C 0 O O U 0 M N C 0 O O U O O O 2 0 C C 0 ` 7 ,. m 0 R E O .2 :5 N O C L 0 U 0 LL. y E p 0 =^ O C L 0 U 0 LL. C L 2 O U 0 C L O U 0 N C L O U 0 0 4) 0 O -LU N n 0 0 0 O O .2 C ` C 0 O O O U 0 N C 0 O O O U 0 M NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 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 0.30J U U U U U U MW-101D 5-Apr-19 6.2J U U U U U U U U U U U U U U U U U U U U U U U U U U 0.31J U U 0.18J U U U MW-101D 04-Sep-19 6.OJ U U U U U U U U U U 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 9-Mar-20 3.9J U U U U U U U U U U 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 2-Sep-20 U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.401 U U 0.26J U U U MW-101D 16-Mar-21 2.8J U U U U U U U U U U U U U U U U U U U U U U U 0.19J U 0.35J 0.58J U U 0.55J U U U MW-101D 22-Sep-21 U U U U U U U U U U U U U U U U U U U U U U 0.26J U U U U U U Page 25 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y 3 C r N E co M 0 O L N N d 0 O L 0. o O t 0 c m o t 7 p toL ` O " O d O d C W d 10 m d ' W d m 3 c O V d C NA c O 'O 0 s w0 n O °_' •`• o i 0 s U C i 2 A s dcc C :° N a 0. Z m O a C U) C ° U F ccd ° U F d a�i 0 f H H a 0 d 0 d d o N d s O H R d E O �GX"0 U H o c o U nj y U > y a > a %O O N °E .X6 E NN TN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 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 MW-101D 5-Apr-19 U U U U 4.6 U U U U U U U U U U U U U U U U U U U U 0.29J U U U U U U U MW-101D 04-Sep-19 U U U U 4.6 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 MW-101D 9-Mar-20 U U U U 6.6 U U U U U U U U U U U U U U U U U U U U 0.33J U U U U U U U MW-101D 2-Sep-20 U U U U 6.2 U U U U U U U U U U U U U U U U U U U U 0.36J U U U U U U U MW-101D 16-Mar-21 U U U U 10 U U U U U U U U U U U U U U U U 0.14J U U U 0.57J U U U U U O. 0.191 MW-101D 22-Sep-21 U U 7.0 1 U U U U U U U U U I U U U U U U U U U U U U Page 26 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 0 4 C O r2 m 0 O. E N y r r 0 U Q O E r 0 U Q '0 U Q C c O r U Q O s U T -_ Q 0 = y C 0 m 0 A L E O t U O E O m C L w C L V v O E O m E w O E O m 0 L 0 E O E O m Y W ' O C r 7 m N y 9 N G C O U O O L H C O U 0 N 0 .0 O O S U A t d O O t U E `0 O O t U 0 L 0 E O O t U C a O O t U 0 C L N O t O E 0 0 O a Q O a° O G O N L U O C L O a G N 0 R y O E Q = 0 C 0 N 7C1 O L u G N C 0 N 7C1 O L u G M C 0 N 7C1 O L u O O N O O G O 0 C C 0 ` 7 .. m 0 R 0 E 2 w_ O N O C L 0 U O LL. L y E j O N O C L 0 U O LL. 0 C l6 L L U G 0 C l6 L L u G N 0 C 0 L L U G 0 O O N N 'U 0 0 O O O N C C M O. O O L u G C N O. O O L u G NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 3.1OJ 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 U U U U U 3.56 U U U U U U U 5.10 U U U U U U U U 1.991 U 21.90 U U 0.27J 0.11J U U U 0.36 U MW-102S 5-Apr-19 U U U U U 4.6 U U U U U U U 7.6 U U U U U U U U 2.4 U 22 U U 0.24J U U U 0.43J 0.44J U MW-102S 4-Sep-19 5.5J U U U U 5.0 U U U U U U U 6.6 U U U U U U U U 2.6 0.12J 25 U U 0.30J U U U U 0.42J U MW-102S 11-Mar-20 U U U U U 4.6 U U U U U U U 8.1 U U U U U U U U 2.9 U 31 U U U U U U U U U MW-102S 3-Sep-20 6.8J U U U U 4.8 U U U U U U U 9.8 U U U U U U U U 3.3 0.14J 33 U U 0.26J U U U 0.33J 0.54J U MW-102S 15-Mar-21 U U U U U 4.7 U U U U U U U 11 U U U U U U U U 3.2 0.17J 33 U 0.60J U U U U U 0.54J U MW-102S 21-Sep-21 I U U 3.8 1 U U U U U U U 1 10 1 U U U U U U U 1 3.0 0.13J 30 U 0.27J U U I U U U 0.52J Page 27 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y C r N co 0 0 LC G N N 0 0 L G N o o t O c d o p to ` O •O d O m W 10 m r W d m c O V d C 2 N a O 'O 0 O N °_' •` o L Gi 0 s U LC Gi 2 s L d :4 d a N a A Z m "O a C iT U) d ° u d ° u a�i L 0 O f H H = a o 0 f7j N d 0 0 f7 N d 0 o f7 d s OV H m E Q O U H c o o 2 nj > m a > %O O E ° E NN... NN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 MW-102S 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 MW-102S 5-Apr-19 U U U U U 0.61J U U U U U U U U U U U U U U U U U U U U U U U U U 0.87J 0.87J MW-102S 4-Sep-19 U U U U U 0.27J U U U U 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 11-Mar-20 U U U U U U U U U U 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 3-Sep-20 U U U U U U U U U U 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 15-Mar-21 U U U U U 4.1 U U U U U U U U U 0.27J U U U U U 0.47J U U U U U U U U 0.57J 2.0 2.57J MW-102S 21-Sep-21 U U U 0.25J U U U U U U U U U U U U U U U U U U U U Page 28 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 4 C r y N co r Q d O N CD N C L t U O E O 10 ES Y7 C L V E O m E O E O CD E O E O m Y ' c N C N O O C N a O O Op O L E O C a O d R L t O E 0 a Q O O NO O O IVw E 0 C C C N O O C N m d R 41 O C yLy is C L O C O N N N r NU a N OO O` NO CE a C O. LGNMOOu a C .E OOOu LGMN NC 2L Standard 6000 NE 4 I 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 20 200 6 NE 1000 NE 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 U U U U U U U U U U U 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 5-Apr-19 U U U U U U U U U U U 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 4-Sep-19 5.2J U U U U U U U U U U U U U U U U U U U U U U U U U U MW-103S 9-Mar-20 U U U U U U U U U U U 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 3-Sep-20 U U U U 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-21 U U U U U U U U U U U 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-21 U U U U U 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 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y C r E co M 0 O L N N d 0 O L 0. o O t 0 c m o p toL ` O " O d O d C W d 10 m d ' W d m 3 c O V d C NA c O 'O 0 s w0 M O °_' •`• o i 0 s U C i 2 A s dcc C :° N a 0. Z m O a C U) C ° U F ccd ° U F d a�i 0 f H H a 0 d 0 d d o N d s O H R d E O �GX U H o c o U nj y U > y a > a %O O N °E �X E NN... .TN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 MW-103S 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 MW-103S 5-Apr-19 U U U U U U U U U U 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 4-Sep-19 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 9-Mar-20 U U U U U U U U U U 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 3-Sep-20 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-21 U U U U U U U U U U 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-21 I I I U U U U U U U U U U U U U 0.13J U U U U U U U U U U Page 30 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 0 4 C O r2 m 0 O. E N co r 0 U Q O E r 0 U Q '0 U Q C c O r U Q s U T -_ Q 0 = 0 C 0 m 0 A L E O t U O E O m C L w C L V v O E O m E w O E O m 0 L 0 E O E O m Y W ' O C r 7 m N y 9 N 0 C O U O O L H C O U 0 N 0 .0 O O S U A t d O O t U E `p O O t U 0 L 0 E O O t U C a O O t U 0 C L N O t O E 0 0 O a Q O a° O D O N L U O C L O a 0 N 0 R y O E Q = 0 C 0 N 7C1 O L u G N C 0 N 7C1 O L u G M C 0 N 7C1 O L u O O N O O G O 0 C C 0 ` 7 .. M 0 R 0 E 2 w_ O N O C L 0 U O LL. L y E j O N O C L 0 U O LL. 0 C l6 L L U 0 0 C l6 L L u G N 0 C 0 L L U 0 0 O 0 N N 'U 0 0 O O O N C C M O. O O L u G C N O. O O L u G NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 I 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 0.901 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 0.091 U MW-104S 4-Apr-19 U U U U U U U U U U U U U U U U U U U U U U U U 0.46J U U 0.191 U U U U U U MW-104S 04-Sep-19 4.8J U U U U U U U U U U 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 11-Mar-20 U U U U U 0.47J U U U U U U U 0.73J U U U U U U U U U U 1.8 U U U U U U 0.32J U U MW-104S 2-Sep-20 U U U U U U U U U U U 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-21 U U U U U U U U U U U U U U U U U U U U U U U U 0.13J U U U U U U U U U MW-104S 22-Sep-21 U U U U U U U U U U U I U U U U U U U I U U U U U U U U U U U Page 31 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y C r N co 0 0 LC G N N 0 0 L G N o o t O c d o p to ` O •O d O m W 10 m r W d m c O V d C 2 N c O 'O 0 O N °_' •` o L Gi 0 s U LC Gi 2 s L d :° d a N a A Z m "O a C iT U) d ° u d ° u a�i L 0 O f H H = a o 0 f7j N d 0 0 f7 N d 0 o f7 d s OV H m E Q O U H c o o 2 nj > m a > %O O E ° E NN... NN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 MW-104S 24-Sep-18 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 U U MW-104S 4-Apr-19 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 U U U U U MW-104S 04-Sep-19 U U U U U U U U U U 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 11-Mar-20 U U U U 4.7 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 MW-104S 2-Sep-20 U U U U U U U U U U 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-21 U U U U U U U U U U 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 22-Sep-21 U U I U I U U U U U U U U U U U U U U U U U IU U U U Page 32 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill N O C O r2 0 S E A co 0 C Y7 U Q y .i.. .0 N U Q = 0 U Q L r .O r U Q v O U T -_ Q 0 C 0 m t 0 O O t O E O m 0 t U O E O m E O E O m 0 0 t. 0 O E O m Y W 0 m 7 m N 'O_ " y O 0 0 O L O ` F A 0 0 N C 0 O O S 0 ME .s+ O O t 0 O O t 0 0 R L 0 O O t 0 ` O O t 0 0 R 0 0 G U E a 0 0 O a 0 O a 0 0 `p N L U L O 0 a 0 N 0 R N E E Q = 0 N C 0 O O U 0 N N C 0 O O U 0 M N C 0 O O U O O O V 0 � 0 C 0 ` 7 �. m 0 R E O w :5 N O C L 0 U 0 LL. N E p O =^ O C L 0 U 0 LL. C L 2 O U 0 C L O U 0 N C L O U 0 0 4) 0 O -LU N � n 0 0 0 O O 0 1 C ` C {6 O O O U 0 N C N O O O U 0 M NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 0.801 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 1.101 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 1.001 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 1.101 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 MW-104D 4-Apr-19 U U U U U 1.9 U U U U U U U 0.37J 0.55J U U U U U U U U U 1.9 U 0.74J 12 U U 6.0 1.3 1.4 U MW-104D 4-Sep-19 U U U U U 2.2 U U U U U U U 0.36J U U U U U U U U 0.17J U 1.7 U 0.71J 12 0.551 U 5.8 1.3 1.2 U MW-104D 11-Mar-20 U U U U U 2.5 U U U U U U U 0.52J U U U U U U U U U U 2.0 U 1.01 14 0.61J U 7.3 1.5 1.5 U MW-104D 2-Sep-20 U U U U U 2.0 U U U U U U U 0.42J 0.54J U U U U U U U U U 1.6 U 0.68J 12 U U 6.6 1.3 1.2 U MW-104D 15-Mar-21 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-104D 22-Sep-21 I U U 3.0 U U U U U U U 0.65J U U U U U U U 0.14J U 2.6 U 21 14 1 U U 1 7.4 1.4 1.6 Page 33 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill y 3 C r N co M 0 O L N N d 0 O L 0. o O t 0 c m o p toL ` O " O d O d C W d 10 m d ' W d m 3 c O V d C NA c O 'O 0 s w n O °_' •`• o 0 i 0 s U C i 2 A s dcc C :° N a N 0 Z m O a C U) C ° U F ccd ° U F d a�i 0 f H H a 0 d 0 d d o N d s O H R d E O �GX"0 U H o c o U nj y U > y a > a %O O N °E .X6 E NN TN X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 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 0.801 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 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 0.83 U U U U 1.90 U U U 13.20 U MW-104D 4-Apr-19 U U U U 6.4 U U U U U U U U U U U U U U U 0.51J U U U U 1.1 U U U 14 U U U MW-104D 4-Sep-19 U U U U 12 U U U U U U U U U U U U U U U 0.43J U U U U 1.1 U U U 6.9 U U U MW-104D 11-Mar-20 U U U U 11 U U U U U U U U U U U U U U U 0.47J U U U U 1.4 U U U 10 U U U MW-104D 2-Sep-20 U U U U 10 U U U U U U U U U U U U U U U U U U U U 1.0 U U U 10 U U U MW-104D 15-Mar-21 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-104D 22-Sep-21 U U 10 U U U U U U U U U 0.34J U U U 1.3 0.36J U U 9.3 U U U Page 34 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 0 O O r2 rr m 0 G E A co 0 N U Q .� N U Q C 0 O` U Q N C r .O r U Q 0 -O O U T _ Q 0 N C 0 m L 0 t O E O m 0 O U O E O m O E O m 0 .L. 0 O E O m Y W 0 C m m N 'O w N O 0 0 O L ` F A 0 0 0 N 0 O O t 0 0 .s+ O O t 0 £ O O t 0 y R L 0 O O t 0 C ` O O t 0 m 0 0 C L U E O � 0 0 f7 C O O. D O d 0 O N L - U r N O 0 a 0 N 0 C R L m E E O = 0 N C 0 a O O U 0 N N C 0 a O O U 0 M N C 0 a O O U O O O t V p 0 C C r ` 7 a+ m 0 R E O O w y N O C o L` U 0 LL. N E O O C O L` U 0 LL. C L N ` O U 0 C L N ` O U 0 N C L N ` O U 0 C 0 O O 0 N N U 0 O O L u O M C ` 0 m O Q O O U 0 N 0 m O 6 O O _U 0 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) 20 200 6 NE 1000 NE 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 0.50J 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 1.40J 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 2.1OJ 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 0.901 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 MW-105S 4-Apr-19 U U U U U 0.36J U U U U U U U 0.69J U U U U U U U U U U 0.97J U U U U U 1.0 U U U MW-105S 4-Sep-19 U U U U U 0.36J U U U U U U U 0.50J U U U U U U U U 0.16J U 1.0 U U U U U 0.82J U U U MW-105S 10-Mar-20 U U U U U 0.27J U U U U U U U 0.42J U U U U U U U U U U 0.62J U U U U U 0.84J U U U MW-105S 3-Sep-20 U U U U U 0.31J U U U U U U U 0.31J U U U U U U U U U U 0.50J U U U U U 0.911 U U U MW-105S 16-Mar-21 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-105S 21-Sep-21 I U U 0.191 U U U U U I U I U 0.21J U U U U U U U U U 0.28J U U U U I U 0.44J U U Page 35 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3 r 'C O 2 N a N CO) 0 a L O G N N C a L O G °N o 2 � iy N u m o t 7 G p y L ` _O ., O d r K O G v C L T L W �' m V T L W o O V N d 2 m C N N 2 N c L d O -O 2 L u Q_ �` L O w : o Z A L N 2 v 0 V C d T L N 2 % O £ T N 2 d a N a 2 a � R Z m C O O a N C T U) 10 � G F N ES G F N d m L c O L O H d H c a O 0 u H N' d M O 0 u F d O 0 O H d c � O _O O H R d E O O _O O H Oa 0. O o V H N t�i Q C > N = t u C > d N % O y m X C E o V W N T X NC 2L Standard NE NE 0.4 0.4 3 600 NE 0.4 40 (1) NE NE NE 5 25 (1) 100 (1) 6 NE 70 1 (1) 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 0.801 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 0.50J U U U U 0.80J 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 0.801 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 MW-105S 20-Sep-18 U U U U U U U U U U U U U U U U U U U U 0.45 U U U U 0.60J U U U U U MW-105S 4-Apr-19 U U U U U U U U U U U U U U U U U U U U 0.27J U U U U 0.47J U U U U U U U MW-105S 4-Sep-19 U U U U U U U U U U U U U U U U U U U U U U U U U 0.31J U U U U U U U MW-105S 10-Mar-20 U U U U U U U U U U U U U U U U U U U U U U U U U 0.36J U U U U U U U MW-105S 3-Sep-20 U 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 MW-105S 16-Mar-21 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-105S 21-Sep-21 U U U U U U U U U U U U U U U U 0.22J I U U U U U U U Page 36 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill O O r2 S E N CO) 0 Y7 U Q .�.r � N U Q = 0 O` U Q rL.. .O r U Q O U T Q 0 N C 0 m L 0 O L O E O m 0 V O E O m £ O E O m 0 0 0 O E O m Y W 0 O m `3 m N 'O_ w O U 0 O L U ` H A U 0 N 0 O O S U CC M .s+ O O t U £ O O t U 0 R L_ 0 O O t U 0 O O t U m 0 E U E O : O 0 0 0 p 0 d 0 O N L U L O G a G N 0 R y E E O = 0 N C 0 O O U G N N C 0 O O U G M N C 0 OCL O U O 4 O u 0 C C 0 ` 7 .. m 0 R E O w 'O N O C O L` U 0 LL. y E p O O C O L` U 0 C L O U G C L O U G N C L O U G 0 C 0 O t U N N 0 0 O O M C ` C 0 O O O U G N C 0 O O O _U G M NC 2L Standard 6000 NE 4 I NE NE 1 NE 0.6 4 10 (I) 4000 700 0.3 50 3000 70 3 NE 0.4 0.04 0.02 70 I 20 200 6 NE 1000 NE 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 MW-106S 4-Apr-19 U U U U U U U U U U U 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 5-Sep-19 U U U U U U U U U U 1.2 U U U U U U U U 2.4 U 0.191 U U 0.191 U U MW-106S 10-Mar-20 U U U U U U U U U U U 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 11-Mar-20 U U U U 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-21 U U U U U U U U U U U 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-21 U U U U U U U U I U U 0.84J U U U U U U U U U 1.8 U U U U U U U U Page 37 of 38 Table 1 Historical Assessment Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill p 'C O r2 N O- N co 0 0 L O G N N d 0 0 L 0 G o o q N o c m �.j = p C L ` _O •, O 0 X O_ G 'I m C T L W d '° (a `L' r2 T L W d d m 3 � O V R N X 4) C R d X A c L N O 'O o t°) Q T O y °' -` •� L G7 2 `0 s ci C L N r2 � 2 ,°� s O L N r2 r 0 :° d 1 N L N 'L V c L t A Z N :' •O O. y d C 2 U) _ o ° 0 >° F N _ o ° - >° F N N d (D O O V d H C 7 O H a o 0 u H V N d d 0 O u H _ d d o O u H N _ d 0 s O _O L .0 H d R d E Q � 0 L O H M a c 2 ° u F M cli 0 R u Q T C_ > m 'a t U a > N a O N m X C E ~ N N 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 (1) 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 MW-106S 24-Sep-18 U U U U 5.80 U U U 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 4-Apr-19 U U U U U U U U U U 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 5-Sep-19 U U 29 U U U U U U U U U U U U U U U U U U U U MW-106S 10-Mar-20 U U U U U U U U U U 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 11-Mar-20 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-21 U U U U U U U U U U 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 1 22-Sep-21 U U 20 U U U 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). A 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. —: MW-10 was damaged beyond repair by operations equipment in 2011 and was abandoned on August 30, 2018. 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 chloromenthane contamination during analysis Bold concentrations exceed the NC 2L Groundwater Protection Standards. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 38 of 38 Table 2 Historical Assessment Monitoring Results - Semi -volatile Organic Compounds 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* Recorded Concentration* Recorded Concentration* 3/23/2010 3/23/2011 3/27/2012 3/13/2013 9/24/2013 3/25/2014 5/27/15-5/28/15 9/29/15-09/30/15 3/15/16-03/16/16 9/27/16-09/26/16 MW-1 None DNS Acenaphthene 80 pg/L 4-Chloroaniline NS Dibenzofuran 28 pg/L (1) MW-2 1,4-Dichlorobenzene 6 pg/L 3/4 Methylphenol 40 pg/L Phenol 40 pg/L Fluorene 30 pg/L MW-3 1,4-Dichlorobenzene 6 pg/L Di-N-Octyl Phthalate 100 µg/L DNS Bis-(2-Ethylhexyl) Phthalate 3 pg/L 10.80 10.13 U DNS MW-4 1,4-Dichlorobenzene 6 p /L Naphthene 6 p /L Bis- 2-Ethylhexyl Phthalate 3 p /L 96.00 U DNS MW-6 1,2-Dichlorobenzene 20 pg/L 1,4-Dichlorobenzene 6 p /L MW 8 Benzoic Acid 30 m /L DNS Diethylphthalate 6 m /L MW-9 None DNS MW-10 4-Chloroaniline NS 6.55 DNS DNS DNS DNS DNS DNS DNS DNS DNS Dibutyl phthalate 700 p /L MW-11 1,4-Dichlorobenzene 6 p /L 3/4-Methyl phenol 40 p /L 1,2-Dichlorobenzene 20 p /L 1,4-Dichlorobenzene 6 µ /L MW-12 Bis- 2-Ethyl hex I Phthalate 3 p /L 19.10 DNS Dibut I phthalate 700 µ /L DNS 3/4-Methyl phenol 40 p /L Phenol 30 p /L MW-100S None DNS Bis- 2-Eth (hex I Phthalate 3 p /L 15.60 20.80 U DNS MW-100D 1,4-Dichlorobenzene 6 µ /L Di-N-Oct I Phthalate 100 µ /L DNS MW-101 D Bis- 2-Eth (hex I Phthalate 3 p /L 14.10 24.20 249.00 U DNS Acenaphthene 80 p /L MW-102S Dibenzofuran 28 p /L I 1,2-Dichlorobenzene 20 p /L 1,4-Dichlorobenzene 6 µ /L MW-103S None DNS MW-104S 1,4-Dichlorobenzene 6 µ /L Bis- 2-Eth (hex I Phthalate 3 p /L 17.00 34.60 297.00 18.60 U DNS MW-104D Di-N-Oct I Phthalate 100 µ /L DNS 1,4-Dichlorobenzene 6 µ /L Dieth (phthalate I 6000 p /L MW-105S Bis- 2-Eth (hex I Phthalate 3 µ /L 13.101 U DNS P rene 200 µ /L I I MW-106S 1,4-Dichlorobenzene DNS Page 1 of 3 Table 2 Historical Assessment Monitoring Results - Semi -volatile Organic Compounds 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* Recorded Concentration* Recorded Concentration* 3/22/17-3/23/17 9/27/17-9/29/17 3/14/18-3/15/18 9/20/18-9/24/18 4/3/19-4/6/19 9/3/19-9/5/19 3/9/20-3/12/20 8/31/20-9/3/20 3/15121-3/17/21 9/20/21-9/23/21 MW-1 None DNS DNS DNS Acenaphthene 80 pg/L U DNS U U 0.70 J 0.34 J 0.28 J 0.44 J 4-Chloroaniline NS U DNS U U 2.4 J 2.0 J U U Dibenzofuran 28 pg/L (1) U DNS U U 0.31 J U U U MW-2 1,4-Dichlorobenzene 6 pg/L DNS DNS 2.7 J U 3.2 J 2.1 J 1.6 J 2.4 J 3/4 Methylphenol 40 pg/L U U U U 5.6 J U Phenol 40 pg/L U U U U 0.21 J U Fluorene 30 pg/L U DNS U U 0.42 J 0.36 J 0.27 J U MW-3 1,4-Dichlorobenzene 6 pg/L DNS DNS U 3.4 J 2.5 J 4.9 J 3.0 J 1.9 J Di-N-Octyl Phthalate 100 µg/L DNS DNS 4.30 J DNS U U U U U U Bis- 2-Ethylhexyl Phthalate 3 pg/L DNS DNS U DNS U U U U U U MW-4 1,4-Dichlorobenzene 6 pg/L DNS DNS U U U U U U Naphthene 6 pg/L DNS DNS U U 0.56 J 0.97 J 0.59 J 0.88 J Bis- 2-Eth Ihex I Phthalate 3 p /L DNS DNS U DNS U U U U U U MW-6 1,2-Dichlorobenzene 20 p /L DNS DNS U U U U U 0.39 J 1,4-Dichlorobenzene 6 p /L DNS DNS U U 0.60 J 0.55 J U 0.37 J MW 8 Benzoic Acid 30 m /L DNS DNS DNS 6.0 J U U Diethylphthalate 6 m /L 0.23 J U U MW-9 None DNS DNS DNS MW-10 4-Chloroaniline NS DNS DNS DNS DNS DNS DNS DNS DNS DNS U Dibutyl phthalate 700 p /L DNS DNS U U U U U 0.61 J MW-11 1,4-Dichlorobenzene 6 p /L DNS DNS U U 0.47 J 0.58 J U 0.46 J 3/4-Methyl phenol 40 p /L DNS DNS U U 1.7 J U U U 1,2-Dichlorobenzene 20 p /L DNS DNS U U 0.83 J 0.86 J 0.55 J 0.86 J 1,4-Dichlorobenzene 6 p /L DNS DNS U U 1.8 J 1.7 J 1.2 J 1.5 J MW-12 Bis- 2-Eth Ihex I Phthalate 3 p /L DNS DNS U DNS U U U U U U Dibut 1 phthalate 700 p /L DNS DNS U DNS U U U U U 0.52 J 3/4-Methyl phenol 40 p /L DNS DNS 49 47 9.9 J 3.5 J 14 U Phenol 30 p /L U DNS 6.1 J U 0.48 J U U U MW-100S None DNS DNS DNS Bis- 2-Eth Ihex I Phthalate 3 p /L DNS DNS U DNS U U U U U U MW-100D 1,4-Dichlorobenzene 6 p /L DNS DNS 2.8 J U 1.5 J 1.8 J 3.3 J 1.8 J Di-N-Oct I Phthalate 100 µ /L DNS DNS 7.80 J DNS U U U U U U MW-101 D Bis- 2-Eth Ihex I Phthalate 3 p /L DNS DNS U DNS U U U U U U Acenaphthene 80 p /L U DNS U U 0.65 J 0.76 J 1.1 J 0.47 J MW-102S Dibenzofuran 28 p /L I 0.29 J 0.36 J U 1,2-Dichlorobenzene 20 p /L DNS DNS U U 1.7 J 1.8 J 2.8 J 1.5 J 1,4-Dichlorobenzene 6 p /L DNS DNS 13 17 17 18 27 14 MW-103S None DNS DNS DNS MW-104S 1,4-Dichlorobenzene 6 p /L DNS DNS U U 0.97 J U U U Bis- 2-Eth Ihex I Phthalate 3 p /L DNS DNS U DNS U U U U DNS U MW-104D Di-N-Oct I Phthalate 100 µ /L DNS DNS 5.10 J DNS U U U U DNS U 1,4-Dichlorobenzene 6 p /L DNS DNS U U 1.4 J 0.90 J DNS 1.4 J Dieth I hthalate 6000 /L U DNS U U 1.8 J 1.7 J DNS 1.8 J MW-105S Bis- 2-Eth Ihex I Phthalate 3 /L DNS DNS DNS DNS U U U U U P rene 200 /L U U U U 0.35 J U MW-106S 1,4-Dichlorobenzene DNS DNS DNS I I I 1 1 0.86 J Page 2 of 3 Table 2 Historical Assessment Monitoring Results - Semi -volatile Organic Compounds Wilder's Grove Landfill Notes: J: Estimated value U: Analyte was below method detection limit. 'Concentration in parts per billion (ppb) or micrograms per liter (tg/L) Shaded and bold concentrations exceed the NC 2L Groundwater Protection Standards. DNS: Not sampled. MW-10 was damaged beyond repair by operations equipment in 2011 and was abandoned on August 30, 2018. (1) - Interim Maximum Allowable Concentrations established under 15A NCAC 2L.0202 NC 2L Standards: NC 2L Groundwater Protection Standards, effective April 2013 NS: Per 15A NCAC 02L.0202, substances which are not naturally occurring and for which no standard is specified shall not be permitted in concentrations at or above the practical quantitation limit in Class GA or Class GSA groundwaters. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 3 of 3 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill `p .c a � o N E m fA E Q N Q E 3 m 3 - y M 3 E U 0 E = U - U C V v T U O = Z 2 w Y Z E C E y > y d w E 3 cc~ > C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-1 20-Sep-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 jL5 <1 <25 23 MW-1 24-Feb-95 <3 <5 535 13 20 11 117 48 0.3 <20 <5 <10 2 66 271 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 9 45 18 <.2 <20 <5 <10 <100C <1 <10 <10 118 MW-1 29-Mar-96 <3 <5 147 <2 <1 <10 <10 <10 <5 <.2 <20 <2 <10 <100C <1 <100 <10 47 MW-1 30-Sep-96 <1 <100 1.46 <1 <5 <1 13 6 17 <1 <5 <5 43 61 MW-1 24-Mar-97 <3 <5 88 1.26 <1 7.8 <5 <10 4.75 0.3 <20 <2 <5 <100 <1 100 13 34 MW-1 15-Sep-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 <10 <.2 <20 10 <5 <100 <1 <5 27 54 MW-1 21-Sep-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 <100 <1 <2 24 62 MW-1 20-Sep-99 <3 <5 78 <2 <5 12 6 <5 <.2 <5 <2 <5 <100 <1 <2 <10 23 MW-1 28-Sep-00 <3 <5 84 <2 <1 <10 <10 <10 5 <.2 <20 <2 <10 <100 <1 <2 <10 30 MW-1 19-Mar-01 <3 <5 141 3 <1 <10 17 24 <20 <2 <5 <1 70 MW-1 25-Sep-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 <100 <1 <2 9 30 MW-1 17-Sep-02 <3 <5 135 3 <1 6 16 23 5 <2 <5 <1 53 MW-1 13-Mar-03 <10 <10 220 4 <1 11 14 34 <.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 24 63 MW-1 31-Mar-04 <3 <5 294 7 <1 17 18 48 29 <.2 11 <2 <5 <100 1 17 62 142 MW-1 24-Sep-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 <100 <10 <100 <40 <50 MW-1 20-Sep-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 <100 <10 <100 <40 <50 MW-1 26-Sep-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 <looq <5 <100 <25 <10 MW-1 11-Sep-07 <6 <10 <100 <1 1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 1 <25 1 <10 MW-1 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 I <10 1 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-1 23-Sep-08 <6 <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 0.3 0.5 0.9 2.3 MW-1 22-Sep-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-Sep-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 0.531 0.12 0.76 0.38 1.4 0.76 0.08 2.1 1.5 0.05 U 0.2 1 0.8 0.91 1 6.5 MW-1 26-Sep-11 U 0.4 101 1 0.21 2 3.8 5.3 1 5.5 0.07 3.4 1.6 0.05 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-May-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-Sep-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-Sep-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 MW-1 28-Sep-17 14-Mar-18 0.14J U 0.82J U 162 58.1J 3 0.24J 0.47J 0.08J 5.5J 0.38J 6.9J 0.38J 14 2.9J U 1.1J U U 5.1J 1.1J 2.OJ U U U U JJW7 U U 22.5J 1.1J 58 4.1J MW-1 20-Sep-18 0.22J 0.24J 40.9 0.35J 0.20J 1.4J 1.7 7.OJ 2.OJ U 1.3J 0.33J U 0.06J 2.0 9.1J MW-1 3-Apr-19 U U 76 0.37J U 0.43J 4.5 3.7J 0.73J U 2.OJ U U 0.083J U U 8.4J MW-1 3-Sep-19 U U 88 0.34J 0.048J 1.1 U 0.99J 0.12J U 1.6J U U 0.16J U U 3.OJ MW-1 9-Mar-20 U U 73 0.33J 0.053J 1.4 0.60J 1.6 0.25J U 1.9J U U 0.076J U U 3.2J MW-1 1-Sep-20 U U 68 0.35J 0.044J 1.5 1.5 1.3 0.80 U 1.71 U U 0.083J U U 4.2J MW-1 15-Mar-21 U U 69 0.30J 0.041J U 1.5 1.1 0.13J U 1.4J U U 0.069J U U 2.9J MW-1 20-Sep-21 U U 89 0.35J 0.079J 0.97J U 0.70J U 2.9J I 1.4J I U 0.11J U I 5.1J Page 1 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q 0 d N a) a- M C 0 E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N 0 U a) 2 o U N 2 C CU U C a - -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 .0 c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-2 20-Sep-94 <5 1070 28 77 59 191 <.2 <5 <10 374 MW-2 7-Dec-94 <3 <5 615 7 21 26 36 37 82 <.2 <20 <5 <10 <1 88 MW-2 24-Feb-95 <3 <5 500 5 17 22 35 27 66 <.2 <20 <5 <10 <1 47 203 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 <100 <1 <10 <25 211 MW-2 29-Mar-96 <3 <5 610 5 <1 10.8 37 24 8 <.2 <20 <2 <10 <100C <1 <100 42 207 MW-2 30-Sep-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 <100C 1.2 <100 128 251 MW-2 15-Sep-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 <100C <1 <5 33 121 MW-2 21-Sep-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 <5 790 <2 1 <10 16 <10 <.2 <20 <2 <20 <100q <1 <2 12 42 MW-2 20-Sep-99 <3 <5 1180 <2 1 <5 23.0 13 15 <.2 5 <2 <5 <100C <1 4 15 56 MW-2 28-Sep-00 <3 <5 908 <2 <1 <10 214 <10 9 <.2 <20 3 <10 <100C <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-Sep-01 <3 <5 1090 <2 1 <10 30 <10 12 <20 3 <10 <1 13 40 MW-2 22-Mar-02 <3 <5 614 <2 <1 <10 24 3 5 <.2 <20 3 <5 <100C <1 <2 6 14 MW-2 16-Sep-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 1 6 8 17 9 <5 1 <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-Sep-04 <5 <5 813 <5 <2 <5 19 <3 <3 <5 <5 <2 1 <5 <5 9 MW-2 15-Mar-05 <30 <10 800 <2 <1 <10 20 <200 <10 <.5 <50 <20 <10 <100C <10 <100 <40 <50 MW-2 20-Sep-05 <30 <10 627 <2 <1 <10 15 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-2 23-Mar-06 <30 <10 1016 <2 <1 <10 17 <200 <10 <.5 <50 <20 <10 <100C <10 <100 <40 <50 MW-2 26-Sep-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 1 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-2 11-Sep-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 <100q <5 <100 <25 <10 MW-2 23-Sep-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 0.3 0.8 1.8 4.4 MW-2 22-Sep-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-Se -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 1 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 2.2J 1082 0.13J U 0.34J 7.4J 1.4J 0.22J 0.03J 4.OJ 3.4J U U 0.51 0.81J 2.3J MW-2 13-Mar-13 0.17 3.5 811 0.11 0.13 0.4 8.2J 0.99 0.28 U 5.9 7.7 U U 0.51 1.2 4.3 MW-2 24-Sep-13 0.13J 2.3J 916 0.1J U 0.38J 7.8J 1.3J 0.26J U 5.4J 4J U U 1.2J 3.8J MW-2 25-Mar-14 0.14J 2.7J 1012 0.26J 0.15J 0.26J 8.OJ 1.2J 1.7J U 5.7J 4.4J U 0.07J 3.OJ 6.7J MW-2 27-May-15 0.10J 2.2J 936 0.12J 0.05J U 6.9J 0.62J U 0.39J U 3.5J 3.1J U U U 0.36J 1.5J 2.5J MW-2 29-Se -15 0.27J 2.3J 937 2 0.85J 2.6J 11 4.6J 11 U 5.8J 3.5J 0.06J Olm 8.8J 46 MW-2 15-Mar-16 0.17J 2.4J 960 0.17J 0.10J 0.38J 6.3J 1.1J U 0.62J U 5.6J 4.2J 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 6.4J 2.4J U 0.05J 1.5J 2.5J MW-2 22-Mar-17 0.22J 2.9J 989 0.92J 1 1.4J 6.1J 2.9J U 6.3J U 5.2J 6.1J U U 0.20J 0.69J 5.8J 31 MW-2 28-Sep-17 0.10J 4.6J 1004 0.86J 0.61J 1.1J 4.6J 2.OJ 4.4J U 4.5J 5.8J U U 7.7J 15 MW-2 14-Mar-18 0.07J 2.5J 954 0.08J 0.08J U 4.3J 0.82J U 0.25J U 5.OJ 5.6J U U U 0.26J 0.51J 1.9J MW-2 20-Sep-18 0.18J 3.6J 974 2 1 3.7J 5.7 4.8J 13 U 5.3J 5.7J 0.11J .30J 9.3 32 MW-2 4-Apr-19 0.097J 1.6 650 0.10J U U 3.9 1.4J U U 4.7J 2.1J U U U U U MW-2 3-Sep-19 U 1.8 780 U U 1.1 4.3 1.2 U U 2.8J U U U U 1.8J U MW-2 10-Mar-20 U 1.1 810 U 0.15J U 6.3 1.8 0.21J U 11 5.7 U 0.056J U U 6.4J MW-2 31-Au -20 U 2.0 660 1 U U 1.4 3.3 1.6 0.40J U 8.2 3.6J U U 70J U U MW-2 15-Mar-21 U 1.7 520 U U U 2.8 2.7 0.52 U 2.5J U U U 73J U U MW-2 21-Sep-21 U 1.2 o.068J U U 4.1 1.3 0.27J 11 2.7J 0.o27J U U U U Page 2 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill d `p .c a o 2 E m E Q G7 Q E 7 m - y M E U 0 E = U - U Q V v C T U 0 = N 2 d y Z E C 6 y > M d w (n E 3 s H ~ C > C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-3 20-Sep-94 <5 630 <5 <10 <10 <5 <.2 <5 <10 40 MW-3 7-Dec-94 <3 <5 654 8 <5 16 <10 28 <5 <.2 <20 <5 <10 <1 55 104 MW-3 24-Feb-95 <3 <5 352 9 <5 19 <10 25 20 <.2 <20 <5 <10 <1 48 91 MW-3 16-Mar-95 <3 <5 300 4 <5 <10 <10 <10 16 <.2 <20 <5 <10 <1 <25 47 MW-3 31-Jul-95 <3 <5 525 2 <1 13 7 <10 9 <.2 <20 <5 <10 <1000 <1 <10 <25 42 MW-3 29-Mar-96 <3 <5 114 <3 <5 <1 <10 <10 5.2 <.2 <20 <2 <10 <1000 <1 <100 16 44 MW-3 30-Sep-96 <10 <10 129 2.39 <1 <5 <10 14 12 14 <10 <5 <5 <25 47 MW-3 24-Mar-97 <3 <5 290 <1 <1 <5 6.2 <10 <5 <.2 <20 <2 <5 <1000 <1 <100 6.9 32 MW-3 15-Sep-97 <3 <5 303 <1 <1 <5 8 <10 <5 <20 <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-Sep-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-Sep-99 <3 <5 74 <2 <1 <5 <5 7 <5 <.2 <5 <2 <5 <1000 <1 <2 <10 16 MW-3 28-Sep-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-Sep-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-Sep-02 <3 <5 100 <2 <1 <5 <5 9 7 <5 <2 1 <5 <1 8 18 MW-3 13-Mar-03 <10 <10 92 <2 <1 <10 <10 <10 <10 <.2 <10 <10 <10 12001 <10 <2 <10 <10 MW-3 17-Oct-03 <3 <5 93 <2 <1 <5 <5 2 1 <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-Sep-04 <5 <5 83 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 4 MW-3 15-Mar-05 <30 <10 1 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-3 20-Sep-05 <30 <10 1 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-3 23-Mar-06 <30 <10 1 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 1 <10 <1000 <10 <100 <40 <50 MW-3 26-Sep-06 <30 <10 1 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 I <10 <40 <50 MW-3 21-Mar-07 <6 <10 I <100 <1 <1 <10 <10 <10 I <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-3 11-Sep-07 <6 <10 I <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-3 19-Mar-08 <6 <10 I <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <1000 <5 <100 <25 <10 MW-3 23-Sep-08 <6 <10 I <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-3 18-Mar-09 0.8 1.1 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 0.6 1.2 1.8 MW-3 22-Sep-09 0.7 0.8 1 115 0.2 0.2 U 0.5 1.1 0.4 0.05 1.2 0.8 1 0.1 U 1.3 5.8 MW-3 23-Mar-10 U 0.8 1 117 0.1 0.1 U 0.5 0.6 U 0.2 U 0.9 0.9 1 0.1 U U 0.3 1.5 1.6 MW-3 21-Se -10 U 0.6 1 106 0.1 U U 0.5 0.3 1 0.1 U 1.3 1 U U 0.6 1.2 MW-3 23-Mar-11 U 0.761 119 0.14 0.16 0.12 0.3 1 U 0.28 0.09 0.99 0.58 U 122 0.03 0.34 1 2.1 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 0.7 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 0.31 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 0.14 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 0.14J 0.24J U 0.09J 0.57J 0.091 U 5.1J 0.89JI U U 0.36J 1.6J MW-3 25-Mar-14 0.07J 0.67J 141 0.21J 0.16J U 0.18J 0.64J 0.14J U 1.2J 1.2J U 0.06J 0.95J 1.6J 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 1.2J 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 1.1J 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 1.3J 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 2.9J 0.64J U U U U U 2.6J MW-3 28-Se -17 0.12J 0.29J 144 0.53J 0.85J 0.431 0.83J 1.9J 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 0.911 U U U U U 0.28J 1.5J MW-3 20-Se -18 0.05J 0.59J 119 0.19J 0.20J 0.39J 0.30J 0.65J 0.17J U 0.87J 1.1J U U 0.94J 2.4J MW-3 4-Apr-19 U 0.53 110 o.o8oi U U 0.16J U U U U U U U U U U MW-3 4-Sep-19 U U 140 0.097J U 0.45J 0.18J U U U 1.0J U U U U U U MW-3 10-Mar-20 U U 120 U U U 0.21J U U U 1.7J U U U U U U MW-3 2-Sep-20 U 1.0 140 U U U 0.23J U U U 1.9J 3.5J U U 38J U U MW-3 15-Mar-21 U U 150 U 0.053J U 0.17J 1.2 U U 0.78J U U U 37J U U MW-3 20-Sep-21 U U 180 0.11J 0.035J U 0.26J 0.81J 0.18J 2.8J 1.2J U U U U U Page 3 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill d `p .c c o 2 E m E Q N Q E 7 m - y m E U 0 E U - U C V v T U 0 = 2 d y Z E C 6 y > M d w U)s E 3 H ~ > C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-4 7-Dec-94 <3 <5 180 <1 <5 18 <10 <10 <5 <.2 <20 <5 <10 <1 47 73 MW-4 24-Feb-95 <3 <5 593 2 9 53 22 20 20 <.2 37 <5 <10 <1 101 169 MW-4 16-Mar-95 <3 <5 139 <1 <5 <10 <10 <10 <5 <.2 <20 <5 <10 <1 <25 34 MW-4 31-Jul-95 <3 <5 222 <1 <1 29 10 <10 7 <.2 <20 <5 <10 <100 <1 <10 32 68 MW-4 29-Mar-96 <10 <10 234 <2 <1 21.5 13 <10 6 99 <.2 <20 <2 <100 <1 <10 72 66 MW-4 30-Sep-96 <10 <10 276 1.96 <1 27 13 15 9 <.2 14 <1 <5 <5 116 96 MW-4 24-Mar-97 <3 <5 60 <1 91.8 23 16 20.7 24 <2 <5 <100 2.1 <100 254 250 MW-4 15-Sep-97 <3 <5 249 1.28 35 10 <10 13 <20 <2 <5 <1 90 76 MW-4 30-Mar-98 <3 <5 348 2 <1 67 16 <1 17 <.2 <20 2 <5 <100C <1 <5 91 89 MW-4 21-Sep-98 <3 <5 406 2 <1 27.8 15 11 13.5 <20 <2 <5 <1 80 143 MW-4 22-Mar-99 <3 <5 138 <2 <1 <10 <5 <10 <5 <.2 <20 <2 <10 <100C <1 <2 21 22 MW-4 20-Sep-99 <3 <5 326 <2 <1 32 14 8 6 <.2 16 <2 <5 <100C 1 <2 80 83 MW-4 29-Sep-00 <3 <5 148 <2 <1 <10 <10 <10 6 <.2 <20 <2 <10 <looq <1 <2 24 29 MW-4 20-Mar-01 <3 <5 134 6 <1 <10 9 24 31 <20 <2 <10 <1 33 88 MW-4 25-Sep-01 <3 <5 128 6 <1 <10 22 30 <20 <2 <10 <1 30 92 MW-4 20-Mar-02 <3 <5 68 4 <1 7 16 20 <.2 <20 <2 <5 <100C <1 <2 23 68 MW-4 17-Sep-02 <3 <5 122 7 <1 16 41 42 19 <2 <5 1 56 161 MW-4 13-Mar-03 <10 <10 21 <2 <1 <10 <10 <10 <10 <.2 <10 <10 <10 <100C <10 <2 <10 17 MW-4 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 8 15 22 <.2 <10 <2 <5 <100C 1 <2 28 79 MW-4 24-Sep-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 1 <200 <10 4.4 <50 <20 <10 <100C <10 <100 <40 <50 MW-4 20-Sep-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 2.06 <50 <20 <10 <100C <10 <100 <40 <50 MW-4 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 1.2 <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 <100C <5 <100 <25 <10 MW-4 11-Sep-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 1.1 <50 <10 <10 <5 <25 <10 MW-4 19-Mar-08 <6 <10 <100 <1 <1 <10 <10 <10 <10 2 <50 <10 <10 <100C <5 <100 <25 <10 MW-4 23-Sep-08 <6 <10 <100 <1 <1 <10 I <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 1.9 4.6 MW-4 22-Sep-09 0.2 0.4 52.1 3 0.1 2.3 2.6 8.8 13 1.5 2 0.4 0.2 0.4 14 56 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 1.4 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 0.3 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 0.291 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 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 10.55J 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 0.04J 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 0.16J 11.3J I 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 0.14J 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 0.08J U 1.3J MW-4 15-Mar-16 0.22JI U 39.OJ 1 0.14J 0.86J 1.1J 1.8J U 2.4J 0.09J 0.71J U U U 0.24J 0.07J 3.6J 14 MW-4 27-Se -16 0.21JI U 11.OJ 0.51J U U 0.18J 0.30J U 10.89 0.11J U U 0.11J U 2.5J MW-4 22-Mar-17 U I U 21.8J 1 0.07J 0.19J 0.80J 1.9J U 3.1J 0.19J 0.53J U U U 0.18J 0.08J 3.OJ 13 MW-4 28-Se -17 U U 17.3J 0.74J U 0.20J 0.76J 1.3J 2.OJ U 0.31J U U 0.10J 1.7J 5.5J MW-4 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 10.70JI 2.9J MW-4 20-Sep-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 10.60JI 4.2J MW-4 3-Apr-19 U 0.71 26 0.83 U 0.52J 1.6 2.4J 0.38J 0.8 U U U 0.16J U U U MW-4 3-Sep-19 U U 20 0.64 0.072J 0.66J 0.93J 1.2 U 1.2 U U U 0.13J U U U MW-4 11-Mar-20 U 1.1 180 U U 1.6 2.1 1.6 0.49J 2.3 2.2J U U U U U U MW-4 31-Au -20 U U 21 0.78 0.056J 0.97J 1.3 U 0.16J 3.6 U U U 0.191 U U U MW-4 16-Mar-21 U U 22 0.59 0.056J U 1.9 0.91J 0.13J 1.3 1 U U U 0.22 U U U MW-4 20-Sep-21 U U 18 0.54 0.13J 1.1 0.94J 0.5 F1.8 0.67J 0.81J U 0.17J U U Page 4 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q G d N o N a E M C O E V E Q E m E 3 CO E 3 U j tU m d Q UC 4) a UC O a J 6 z E N d y) y a Nt E 3 F _ E 'a m m NC NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-6 20-Sep-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 21 <.2 218 <5 30 2 <25 1300 MW-6 16-Mar-95 <3 <10 302 2 8 68 214 2580 43 <.2 555 <5 <10 1 34 3490 MW-6 31-Jul-95 <3 <5 326 1 4 135 167 1590 30 <.2 304 <5 30 <1000 <1 <10 <25 1760 MW-6 29-Mar-96 <3 <10 118 <2 <1 <10 40 165 <5 <.2 47 <2 10 <1000 <1 <100 <10 253 MW-6 30-Sep-96 <3 <10 197 1.65 6.5 33 91 597 20 140 <10 36 <5 33 975 MW-6 24-Mar-97 <3 <5 128 <1 <1 17.5 37 131 <5 <.2 34 <2 6 <1000 <1 <100 12 209 MW-6 15-Sep-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 <.2 25 9 <5 <1000 <1 <50 9 154 MW-6 21-Sep-98 <3 <5 222 1 20.5 54.9 168 1200 25.2 191 3.1 9 <1 19.4 1770 MW-6 22-Mar-99 <3 <5 139 <2 12 25 118 499 10 <.2 125 2 <1000 <1 4 11 771 MW-6 20-Sep-99 <3 <5 111 <2 8 17 56 289 1 7 1 <.2 47 4 13 <1000 <1 3 10 314 MW-6 28-Sep-00 <3 <5 87 <2 15 <10 56 176 <5 <.2 42 5 <10 <10001 <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-Sep-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-Sep-02 <3 <5 98 <2 <1 <5 70 22 <5 14 4 <5 <1 <5 24 MW-6 12-Mar-03 <10 <10 112 <2 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 1 <5 26 17 <5 <1 <5 36 MW-6 30-Mar-04 pK <5 106 <2 <1 <5 68 17 <5 <.2 18 13 <5 <1000 <1 <2 <10 36 MW-6 24-Sep-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 3 <10 90 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 93 MW-6 20-Sep-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-Sep-06 <30 <10 <500 <2 <1 <10 99 <200 <10 1 <.5 <50 <20 <10 <10 <40 <50 MW-6 21-Mar-07 <6 <10 <100 <1 <1 <10 73 <10 <10 1 <.2 <50 <10 <10 <10001 <5 <100 <25 <10 MW-6 11-Sep-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-Sep-08 <6 <10 <100 <1 <1 <10 78 <10 <10 <.2 <50 <10 <10 <5 <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 1 28 MW-6 22-Sep-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 1 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 0.71 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 0.99 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 0.08J 0.11J 0.28J 60 4.6J U 0.79J 0.58 13.5J 2.1J U U U 0.57 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 0.32J 0.57 0.28 11 MW-6 25-Sep-13 0.1 J 0.88J 26.5J 0.11J 0.1 J U 37 1.8J 963 0.36J 10.05J 7.4J 1.6J U 0.28J 1.3J 8.2J MW-6 25-Mar-14 0.09J 1.2J 42.9J 0.05JI U I 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 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 1.3J 0.03J 0.091 0.59J 13 MW-6 16-Mar-16 0.72J U 15.2J 0.06J 0.31J 0.96J 23 2.9J 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 2.8J 598 0.57J U 10.OJ 1.5J 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 8.1J 2.2J 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 10.4J 2.OJ 0.51J U U 1.1J 46 MW-6 15-Mar-18 0.06J 1.00J 51.2J 0.10JI 2 10.37J 58 8AJ U 992 1.1J U 8.1J 3.3J 0.21J U U U 1.1J 40 MW-6 24-Sep-18 0.08J 0.56J 29.2 U I 0.50J 0.17J 44 2.9J 89 0.11J U 6.9J 1.1J U U 0.06J 0.04J 21 MW-6 5-Apr-19 U U 12 0.097J 1.3 1.3 6.8 7.7 340 U 0.67 3.5J U U U U U 57 MW-6 4-Sep-19 U U 27 U 2.1 0.611 65 6.5 220 o.o99J U 16 U U U U U 79 MW-6 9-Mar-20 U U 24 U 5.1 2.0 38 10 120 U 0.13 16 3.8J U 0.021J U U 69 MW-6 2-Sep-20 U 0.81 24 U 8.0 0.97J 60 9.2 160 0.27J U 20 4.2J U U 37J U 97 MW-6 16-Mar-21 U U 20 0.097J 1.3 2.0 8.6 4.0 300 U 0.11 5.1 U U 0.0311 U U 33 MW-6 22-Sep-21 U U 25 U 6.4 U 83 24 160 U 0.0511 33 U 0.034JI U I U U 150 Page 5 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q G d N o N a E M C O E V E Q E m E 3 CO E 3 U j tU m d Q UC 4) a UC O a J 6 z E N d y) y a Nt E 3 F _ E 'a m m NC NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-8 20-Sep-94 <5 1750 13 133 304 106 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 79 0.8 40 <5 <10 4 200 571 MW-8 16-Mar-95 <6 <5 440 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 <100C 3 <10 115 838 MW-8 29-Mar-96 <3 <5 270 4 <1 <10 <10 97 25.7 <.2 <20 <2 <10 <100C <1 <100 48 149 MW-8 30-Sep-96 <10 <10 621 9.7 1 41 21 260 57 42 <10 6 <5 168 295 MW-8 24-Mar-97 <3 <5 208 7.5 <1 23.5 7.3 65 13.6 <.2 <20 <2 <5 <100C 1.3 <100 58 117 MW-8 15-Sep-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-Sep-98 <3 <5 183 2 <1 10.9 <10 50 136 0.48 22 <2 <5 <1 26.4 93 MW-8 22-Mar-99 <3 <5 484 5 1 32 15 168 32 1.35 34 2 <10 <100IC 2 <2 70 228 MW-8 20-Sep-99 <3 <5 132 <2 <1 8 <5 30 7 <2 20 <2 <5 <100q <1 <2 17 54 MW-8 28-Sep-00 <3 <5 163 <2 10 <10 43 9 1.25 26 <2 <10 <100C <1 <2 22 80 MW-8 19-Mar-01 <3 <5 85 <2 <1 <10 <5 14 <5 0.52 <20 <2 <5 <1 <10 33 MW-8 25-Sep-01 <3 <5 230 2 1 16 8 61 13 1.3 32 2 10 <1 31 85 MW-8 20-Mar-02 <3 <5 84 <2 <1 <10 <5 13 <5 0.42 20 <2 <5 <100C <1 <2 7 24 MW-8 17-Sep-02 <3 <5 83 <2 <5 <5 12 <5 28 <2 <5 <1 5 24 MW-8 13-Mar-03 <10 <10 216 3 <1 13 <10 54 14 0.5 23 <10 <10 1200 <10 <2 30 90 MW-8 18-Oct-03 <3 <5 85 <2 <1 <5 <5 10 <5 12 <2 <5 <1 6 21 MW-8 30-Mar-04 <3 <5 94 <2 <1 <5 6 10 5 2.8 19 <2 <5 <100C <1 <2 <10 34 MW-8 24-Sep-04 <5 <5 67 <5 <2 <5 7 3 <3 18 <5 <2 <5 <5 8 MW-8 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 2 <50 <20 <10 <100C <10 <100 <40 <50 MW-8 20-Sep-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 <100C <10 <100 <40 <50 MW-8 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 1.8 <50 <20 <10 I <10 <40 <50 MW-8 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 1.7 <50 <10 <10 <100C <5 <100 <25 <10 MW-8 11-Sep-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 <100C <5 <100 <25 <10 MW-8 23-Sep-08 <6 <10 <100 <1 <1 <10 14.9 <10 <10 1.4 <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 Fr6.2 22 MW-8 22-Sep-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 7.2 45 U 18 1.1 10.7 0.9 0.3 U 1 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 2.3 16 U 6 0.23 8.4 U 0.1 166 1.2 8.6 34 MW-8 18-Sep-12 0.4J 0.18J 98.5J 0.65J 0.91J 2.OJ 1.9J 6.8J U 2.OJ 0.34 10.4J 0.44J U 166 0.15J 1.2 3.8J 2.7J 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 O.08J 1.6J 1.6J 0.15J U 9.5J 0.2J U U 0.22J 6.1J MW-8 25-Mar-14 0.16J 0.63J 101 0.88J 0.17J 1.3J 7.7J 7.5J 2.8J 0.54J 8.OJ 0.71J U 0.13J 4.4J 12 MW-8 27-Ma -15 0.13J 0.22J 160 1 0.18J 3.3J 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 1.2J 5.5J 5.OJ 1.9J 0.11J 8.1J 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 9.5J 0.64J U U 0.22J 0.28JI 7.4J 21 MW-8 27-Se -16 U U 85.9J 0.36J 0.14J 0.11J 1.3J 1.7J 0.60J U 6.1J U U U 0.83J 5.5J MW-8 22-Mar-17 U U 97.OJ 0.46J 0.14J 0.49J 1.8J 2.5J U 0.68J U 3.9J U U U 0.06J 0.10J 1.1J 7.8J MW-8 28-Se -17 U 0.50J 255 2 0.56J 6.6J 3.OJ 47 12 0.17J 6.5J 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 0.08J 5.3J U U U U U U 5.1J MW-8 20-Sep-18 0.06J 0.24J 140 1 0.46J 3.2J 2.1 13 3.9J 0.06J 6.9J 0.65J 0.09J 0.21J 6.6 33 MW-8 3-Apr-19 U 0.62 87 0.34J 0.10J 0.73J 3.9 2.6J 0.45J 0.45 4.OJ U U U U U 5.6J MW-8 3-Sep-19 U U 85 0.30J 0.12J 1.5 7.1 1.8 0.15J 0.30 4.2J U U 0.053J U U 5.4J MW-8 10-Mar-20 U U 100 0.32J 0.089J 1.1 18 1.3 0.20J 0.37 9.0 U U 0.030J U U 4.5J MW-8 1-Sep-20 U U 94 0.34J 0.051J 1.6 2.7 1.1 0.21J 0.23 2.1J U U 0.039J U U 2.5J MW-8 15-Mar-21 U U 73 0.28J 0.061J 1.5 27 2.3 0.44J 0.24 8.9 U U 0.038J U U 3.1J MW-8 20-Sep-21 U U 94 0.34J 0.071J 2.7 1.5 2.9 0.86 0.10 3.4J 1.OJ U U U 5.6J Page 6 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - a O 2 d o 2 Q 0 0 E Q E m Q E '- m 3 - CO 3 E U _3 E y0 V - O U a O V v C U o = '° J 2 N '2 y O Z c N U) 76 > U) a) w 3 U)~ E 3 N C- O i C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 2000 0.3 1000 MW-9 20-Sep-94 <5 609 6 38 106 <5 <.2 <5 <10 211 MW-9 7-Dec-94 <3 <5 701 16 10 79 29Q 212 <5 <.2 64 <5 <10 2 176 407 MW-9 24-Feb-95 <3 <5 1000 18 19 72 32 325 43 <.2 111 <5 <10 4 152 585 MW-9 16-Mar-95 <3 <5 570 12 7 48 24 159 22 <.2 49 <5 <10 1 78 328 MW-9 31-Jul-05 <3 <5 941 13 <1 130 37 306 40 <.2 100 <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 1<1000 1.5 <100 148 264 MW-9 30-Sep-96 <10 <10 411 7.7 <1 39 21 115 14 23 <1 <5 <5 1 132 190 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-Sep-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 <2 <5 <100C <1 <5 50 122 MW-9 21-Sep-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 <100C <1 <2 33 86 MW-9 20-Sep-99 <3 <5 256 5 <1 15 12 43 5 0.65 12 <2 <5 <100C <1 <2 32 86 MW-9 28-Sep-00 <3 <5 208 4 <1 <10 11 35 <5 <.2 <20 <2 <10 <100q <1 <2 1 20 54 MW-9 19-Mar-01 <3 <5 232 4 <1 13 9 47 <5 <20 <2 <5 <1 29 85 MW-9 25-Sep-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 <100C <1 <2 27 71 MW-9 16-Sep-02 <3 <5 193 4 <1 11 12 50 <5 1 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 <1 <5 12 57 1 <5 14 3 <5 <1 29 76 MW-9 31-Mar-04 <3 <5 129 <1 <5 7 17 1 <5 <.2 <5 <2 <5 <100q <1 11 <5 14 MW-9 24-Sep-04 <5 <5 133 <5 <2 <5 M 17 1 <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 <100C <10 <100 <40 <50 MW-9 20-Sep-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 <100C <10 <100 <40 <50 MW-9 26-Sep-06 <30 <10 <500 3 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-9 21-Mar-07 <6 <10 1 112 2 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-9 11-Sep-07 <6 <10 1 103 2.4 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-9 19-Mar-08 <6 <10 I <100 2 <1 <10 <10 <10 I <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-9 23-Sep-08 <6 <10 1 101 2 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-9 18-Mar-09 0.2 0.5 194.6 2 0.1 U 6.7 3.6 U 0.1 0.03 1.3 0.6 U U 0.1 0.4 1.3 7.6 MW-9 22-Sep-09 U 0.2 1 133 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-Sep-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.OJ 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 I 3.4J 16 MW-9 29-Sep-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 196.1J 1 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.OJ 8.4J 6.6J U 0.86J U 3.OJ U U U 0.11J 0.17J 4.6J 18 MW-9 MW-9 28-Se -17 14-Mar-18 U U 0.18J 0.17J 393 275 4 0.84J 0.19J 10 0.19J 10 11 37 4.4J U 6.8J 0.09J U U 8.7J 3.8J 0.71J U U U U IL84J U U 30 0.38J 128 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 10.22J 19 MW-9 5-Apr-19 U U 340 3.9 0.16J 0.46J 18 6.0 U U 5.0 U U U U U 19 MW-9 4-Sep-19 U U 440 3.5 0.15J 0.75J 26 6.8 0.13J U 6.6 U U U U U 19 MW-9 9-Mar-20 U U 430 0.15J U 19 6.6 0.096J U 8.2 U U U U U 20 MW-9 3-Sep-20 U U 460 4.3 0.18J U 19 5.7 0.092J U 8.7 1.8J U U U U 21 MW-9 15-Mar-21 U U 520 4.2 0.19J U 22 6.5 U U 7.5 U U U 33J U 21 MW-9 21-Sep-21 U U 470 2.8 0.18J U 23 5.6 U 9.0 1.8J U U U U 18 Page 7 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q a d N a) a- M C a E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N o U a) 2 o U N 2 C CU U C O = -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 'a c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-10 20-Sep-94 <5 3630 45 163 155 132 <.2 <5 10 100 MW-10 7-Dec-94 <3 <5 3400 10 30 74 53 135 75 <.2 <5 <10 3 143 1100 MW-10 24-Feb-95 <3 <5 2070 5 19 32 31 77 51 <.2 <5 <10 4 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 53 0.38 <20 <5 <10 <100 2 <10 49 795 MW-10 29-Mar-96 <3 <5 1370 4 1.1 <10 27 27 58 10.64 <20 <2 1 <10 <100C <1 40 175 MW-10 30-Sep-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 mIWE 129 MW-10 15-Sep-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 2 13 20 14 9 <.2 <20 15 <5 <1 <5 13 139 MW-10 21-Sep-98 <3 6 5210 <1 1.67 <10 21.6 24 9.93 23 5 12.6 <1 17.9 119 MW-10 22-Mar-99 <3 <5 3590 <2 14 10 <.2 5 <10 <100q <1 <10 52 MW-10 20-Sep-99 <3 <5 2V& <2 <1 <5 9 10 <5 <.2 12 5 <5 <100C <1 3 6 75 MW-10 28-Sep-00 <3 <5 1300 <2 <1 <10 <10 11 <5 <.2 <20 7 <10 <100C <1 <2 <10 70 MW-10 19-Mar-01 <3 <5 1480 <2 1 <10 9 13 <5 <20 9 <5 <1 <10 81 MW-10 25-Sep-01 <3 <5 1900 <2 2 <5 9 13 7 <20 6 <10 <1 11 112 MW-10 22-Mar-02 <3 8 2820 <2 <1 <10 7 <10 <5 <.2 <20 20 <10 <100C <1 <2 <10 29 MW-10 16-Sep-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 1 7 19 MW-10 30-Mar-04 <3 10 2930 <2 <1 <5 7 16 <5 <.2 16 28 <5 <100C <1 2 <10 <10 MW-10 24-Sep-04 <5 <5 2560 <5 <2 <5 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 <100C <10 <100 <40 <50 MW-10 20-Sep-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 <100C <10 <100 <40 <50 MW-10 26-Sep-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 <100C <5 <100 <25 17 MW-10 11-Sep-07 <6 <10 2 <1 <1 <10 I <10 I <10 <10 <.2 <50 11 <10 <5 <25 <10 MW-10 19-Mar-08 <6 <10 862 <1 <1 <10 <10 <10 <.2 <50 1 12 <10 <100C <5 <100 <25 <10 MW-10 23-Sep-08 <6 <10 1165 <1 <1 <10 114 <10 <10 <.2 <50 <10 <10 <5 <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 0.8 1.7 3 13 MW-10 22-Sep-09 0.2 4.7 2158 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 2017 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 1301 0.1 U 0.3 6.8 4 0.8 U 8.3 15 U 0.4 2.4 8.2 MW-10 23-Mar-11 0.2 3.7 io 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 1.9 4.8 MW-10 26-Sep-11 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-10 27-Mar-12 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-10 18-Sep-12 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-10 13-Mar-13 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-10 24-Se-13 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-10 25-Mar-14 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-10 27-May-15 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS Page 8 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q a d N a) a- M C a E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N o U a) 2 o U N 2 C CU U C O = -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 'a c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-11 20-Sep-94 <5 815 9 48 25 101 <.2 1 <5 <10 226 MW-11 7-Dec-94 <3 <5 371 10 17 30 P=ll 66 <5 <.2 26 <5 <10 1 85 295 MW-11 24-Feb-95 <3 <5 640 12 35 25 32 116 96 <.2 44 <5 <10 2 49 591 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 <100C <1 <10 26 331 MW-11 29-Mar-96 <3 <5 252 7 <1 <10 31 19 19.4 0.3 <20 <2 <10 <100C <1 <100 42 112 MW-11 30-Sep-96 <10 <10 204 6.15 <1 10 <10 28 25 <.2 12 <10 <5 <5 44 104 MW-11 24-Mar-97 <3 <5 97 2.99 <1 13.2 14 <10 7.3 <.2 <20 <2 <5 <100C <1 <100 20 58 MW-11 15-Sep-97 <3 <5 133 4.83 <1 14 18 <10 20 1 <20 <2 <5 <1 38 75 MW-11 30-Mar-98 <3 <5 98 3 <1 19 14 <1 12 <.2 <20 3 <5 <100C <1 18 78 MW-11 21-Sep-98 <3 <5 144 2 <1 <10 14.5 <10 7.26 <20 <2 <5 <1 <10 36 MW-11 22-Mar-99 <3 <5 68 <2 <1 <10 10 <10 <5 <.2 <20 <2 <10 <100q <1 <2 <10 26 MW-11 20-Sep-99 <3 <5 67 <2 <1 <5 7 <5 <.2 <5 <2 <5 <100C <1 <2 <10 35 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 MW-11 19-Mar-01 <3 <5 697 14 <1 21 90 69 82 25 4 <5 3 90 423 MW-11 25-Sep-01 <3 <5 432 10 2 14 86 52 49 <20 3 <10 1 76 253 MW-11 20-Mar-02 <3 <5 72 <2 <1 <10 71 6 5 <.2 <20 <2 <5 <100C <1 <2 8 32 MW-11 29-Oct-02 <3 <5 138 4 <2 <5 78 17 15 6 <2 <5 <1 26 90 MW-11 13-Mar-03 <10 <10 94 <2 <1 <10 63 10 <10 <.2 <10 <10 <10 10001 <10 <2 16 48 MW-11 18-Oct-03 <3 <5 88 <2 <1 <5 122 1 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 <100C <1 <2 <10 17 MW-11 24-Sep-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 <100C <10 <100 <40 <50 MW-11 20-Sep-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 <100C <10 <100 <40 <50 MW-11 26-Sep-06 <30 <10 <500 <2 <1 <10 119 <200 <10 <.5 <50 <20 <10 I <10 <40 <50 MW-11 21-Mar-07 <6 <10 <100 <1 <1 <10 94 1 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 11 MW-11 11-Sep-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 <100C <5 <100 <25 10 MW-11 23-Sep-08 <6 <10 <100 <1 <1 <10 24 <10 <10 <.2 <50 <10 <10 <5 1 <25 1 <10 MW-11 18-Mar-09 U 0.7 74.4 0.3 0.2 U 98 1 U 0.2 0.05 2.2 0.3 U U 0.1 0.3 lllllllllFll 7.2 MW-11 22-Sep-09 U 0.4 55 0.2 U U 69 0.5 0.2 0.06 1.4 0.4 U U .9 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 I U 0.2 0.5 3.4 MW-11 21-Sep-10 U 0.4 45.5 0.1 U U 62 1 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 1 18-Sep-12 0.08J 0.26J 55.6JI0.16JI U U 20 0.23JI U 1 0.14J 10.06J 2.2J I 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 2.5 0.74 U U 0.14 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 2.8J 0.69J 0.06J 0.32J 0.6J 5.4J MW-11 25-Mar-14 0.09J 0.66J 65.1J 0.17J 0.07J U 43 0.42J 0.20J U 1.5J 0.48J U 0.06J 0.90J 3.3J MW-11 27-Ma -15 0.05J 0.73J 43.9J 0.07J U U 43 0.36J U 0.11J U 1.OJ 0.40J 0.02J U 0.04J U 0.61J 1.2J MW-11 29-Se -15 0.40J 0.86J 443 0.17J 0.18J 0.23J 6.7J 2.5J 0.99J U 1.OJ 0.36J 0.06J 0.10J U 3.OJ MW-11 15-Mar-16 0.08J 0.95J 54.8J 0.10J U U 38 0.25J U U U 1.4J 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 2.8J U 5.8J 0.86J U 1.OJ 3.6J 23 MW-11 22-Mar-17 U I U 71.8J 0.24J 0.08J U 49 3.1J U 0.66J U 4.6J U U U 0.11J I U 0.546. 6.OJ MW-11 28-Sep-17 0.08J 0.50J 312 8 9 3.1J 344 23 0.081 32J 1.2J I U 51 30 457 MW-11 14-Mar-18 U 10.40J 47.4J 0.29J 0.17J U 19 1.11 U 0.85J U 1.7J 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 6.3J 7.4 U 3.5J 0.52J U 0.53J 8.1 57 MW-11 4-Apr-19 U 0.78 88 0.48 U U 68 1.2J U U 3.3J U U U U U 5.6J MW-11 3-Sep-19 U 0.91 85 0.27J 0.041J 0.47J 50 1.2 0.101 U 1.91 U U U U U U MW-11 9-Mar-20 U U 55 0.18J U U 49 U U U 1.7J U U U U U U MW-11 1-Se -20 U 1.1 59 0.13J U U 34 U U U 1.2J U U U 34J U 6.OJ MW-11 15-Mar-21 U 1.2 51 0.097J 0.045J U 34 U 0.10J U 1.2J U U 0.030J 33J U 3.5J MW-11 20-Sep-21 U 1 2.2 68 0.11J 0.045J U 22 0.75J U 1.5J 1.4J 0.10J U U U U Page 9 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q 0 � d N a) a- M V) C 0 E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N 0 U a) 2 o U N 2 C CU U C a - -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 .0 c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-12 20-Sep-94 <5 753 <5 40 19 <5 <5 <10 97 MW-12 7-Dec-94 <3 <5 392 3 <5 27 <10 38 <5 <20 <5 <10 <1 36 150 MW-12 24-Mar-95 <3 <5 378 3 <5 16 <10 35 8 <20 <5 <10 <1 31 147 MW-12 16-Mar-95 <3 <5 510 3 <5 24 <10 48 J<.2 <20 <5 <10 29 203 MW-12 31-Jul-95 <3 <5 333 2 <1 25 <5 25 13 <20 <5 <10 <100 <1 <10 <25 113 MW-12 29-Mar-96 <3 <5 225 2 <1 <10 <10 15 <5 <20 <2 <10 <100 <1 <100 15 70 MW-12** 30-Sep-96 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-12 15-Sep-97 <3 <5 6080 27 <1 169 97 1260 594 68 <2 <5 14 71 1490 MW-12 30-Mar-98 <3 <5 1750 7 <1 46 17 194 92 0.36 <20 <2 <5 3 <5 72 315 MW-12 21-Se -98 <3 <5 1080 <4 <1 <10 <5 76 35 2.61 <20 <2 <5 1.22 26.5 127 MW-12 22-Mar-99 <3 <5 703 2 <1 <10 <5 53 19 <.2 <20 <2 <10 <100C <1 <2 16 82 MW-12 20-Sep-99 <3 <5 1490 8 1 14 13 218 66 <.2 8 4 <5 1 2 2 65 292 MW-12 28-Sep-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-Sep-01 <3 <5 1310 8 2 14 215 60 <20 4 <10 2 64 247 MW-12 20-Mar-02 <3 <5 613 <1 <10 82 35 <.2 <20 <2 <5 <1000 2 <2 36 161 MW-12 17-Sep-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 26 95 MW-12 18-Oct-03 <3 <5 139 <2 <1 <5 <5 10 <5 <5 <2 <5 <1 <5 19 MW-12 30-Mar-04 <3 <5 218 <2 <1 <5 <5 15 <5 <.2 <10 <2 <5 <100C <1 <2 <10 22 MW-12 24-Sep-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 <100C <10 <100 <40 <50 MW-12 20-Sep-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 <100C <10 <100 <40 <50 MW-12 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.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 <100q <5 <100 <25 <10 MW-12 11-Sep-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 I <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-12 23-Sep-08 <6 <10 215 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-12 18-Mar-09 U 0.2 187 0.5 0.4 U 1.9 1.9 U 0.4 0.09 0.9 U 0.1 U 0.4 0.4 0.7 5.3 MW-12 22-Sep-09 U 0.5 711 4 3 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 1 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 U 3.5 MW-12 26-Se -11 U 0.54 363 2 1 3.2 2.3 1 35 15 0.16 1.6 2.1 0.36 0.7 11.9 63 MW-12 27-Mar-12 0.26 0.17 175 0.34 0.38 U 2.7 1 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 .28J 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 I 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 0.66J 2.6J MW-12 27-Sep-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 I 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 U 6.9J MW-12 3-Apr-19 U 1.5 410 0.24J U U 11 4.6J 1.1 U 1.7J U U 0.060J U U 9.61 MW-12 3-Sep-19 U 0.86 500 0.16J 0.042J 0.37J 10 1.3 0.29J U 1.1J U U 0.0591 U U U MW-12 9-Mar-20 U U 340 0.17J 0.039J U 5.1 1.8 0.32J U 1.2J U U 0.048J U U U MW-12 1-Sep-20 U 0.76J 340 0.12J U U 7.1 U 0.22J U 1.3J U U 0.068J 16J U 3.9J MW-12 15-Mar-21 U U 280 0.13J 0.045J U 4.4 1.4 0.40J U 0.88J U U 0.065J U U U MW-12 20-Sep-21 U U 380 0.11J 0.029J U 5.2 1.1 0.34J 1.8J 1.1 J 0.0371 U U U Page 10 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - a 0 2 d 2 Q 0 E - Q m i Q '- to m - �' m E -0 U E y0 V O U a O V U o = '° J 2 N '2 Y O Z c N y > y w 3 3 N ~ H O i C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 2000 0.3 1000 MW-100S 28-Sep-00 <3 <5 226 <2 <1 <10 12 <10 <5 <.2 <20 3 <10 <100C <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-Sep-01 <3 <5 317 3 <1 <10 17 30 13 <20 2 <10 1 22 80 MW-100S 20-Mar-02 <3 <5 163 <2 <1 <10 11 3 <5 <.2 <20 3 <5 <100C <1 <2 <5 <10 MW-100S 16-Sep-02 <3 <5 219 <2 <1 <5 15 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 11000 <10 <2 11 44 MW-100S 17-Oct-03 <3 <5 147 <2 <1 <5 15 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 <100C <1 2 <10 <10 MW-100S 24-Sep-04 <5 <5 231 <5 <2 <5 <3 <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 <100C <10 <100 <40 <50 MW-100S 20-Sep-05 <30 <10 <500 <2 <1 <10 12 <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<100C <10 <100 <40 <50 MW-100S 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 I I <10 <40 <50 MW-100S 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-100S 11-Sep-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 <100C <5 <100 <25 <10 MW-100S 23-Sep-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-Sep-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 1 U 1 0.1 0.5 3.3 13 MW-100S 21-Se -10 U 0.3 100 0.2 0.2 U 3.5 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 9.6 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-Se -12 0.13J 0.62J 157 0.6J 0.11J 2.1J 4.3J 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 0.571 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 2429 1.2J U 1.2J 0.39J U 0.191 2.4J 9.7J MW-100S 25-Mar-14 0.08J U 112.3J 0.63J 0.06J 0.86J 0.26J 0.92J 1643 0.68J U U 0.11J U 0.06J 1.3J 9.3J MW-100S 28-Ma -15 0.19J U I 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-Se -15 0.09J 0.21J 59.6J 0.35J 0.09J 0.61J 1.9J 0.77J 760 0.35J U 2.OJ 0.91J 0.02J 0.04J 0.51J 7.2J MW-100S 16-Mar-16 0.36J U 111.2JO.49J 0.12J 1.4J 0.20J 0.86J U 898 0.63J U 0.95J U U U 0.05J U U 9.1J MW-100S 28-Se -16 0.08J U 197.4J 2 0.21J 3.5J 1.9J 4.4J 8064 5.8J U 3.2J 0.65J U IF27J 4.9J 43 MW-100S 23-Mar-17 U U 123.1J 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 AJ 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.OJ MW-100S 4-Apr-19 U U 6.9J 0.41 U 0.47J U 3.9J 0.56J U U U U U U U 5.6J MW-100S 4-Sep-19 U U 19 0.44 U 0.68J U U 46J U U U U U 0.029J U U U MW-100S 10-Mar-20 U U 8.1J 0.40J U U U U U U U U U U U U U U MW-100S 3-Sep-20 U U I 5.8J 0.32J U 10.99j, U U U U U U U U U U U 4.OJ MW-100S 16-Mar-21 U U 5.7J 0.38J U U U U U U U U U U U U U U MW-100S 22-Sep-21 U U 34 0.83 0.032J U U U 0.28J U U U 1 U U U U Page 11 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q a d N a) a- M C a E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N o U a) 2 o U N 2 C CU U C O = -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 'a c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-100D 28-Sep-00 <3 <5 1090 11 2 53 1 19 1 64 1 73 <.2 1 <20 1 5 <10 <1000 2 <2 75 1 292 MW-100D 19-Mar-01 <3 <5 374 6 1 30 9 29 35 <20 2 <5 1 35 150 MW-100D 25-Sep-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 <100C <1 <2 17 62 MW-100D 16-Sep-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 <10 <10 <2 <10 <10 <10 <100C <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 <100q <1 <2 <10 25 MW-100D 24-Sep-04 <5 <5 28 <5 <2 <5 <5 <3 <3 <5 <5 <2 1 <5 <5 <5 MW-100D 15-Mar-05 <30 <10 <500 <2 <1 <10 19 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-100D 20-Sep-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 <100C <10 <100 <40 <50 MW-100D 26-Sep-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 <100C <5 <100 <25 <10 MW-100D 11-Sep-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 <100C <5 <100 <25 <10 MW-100D 23-Sep-08 <6 <10 426 <1 <1 <10 20 <10 <10 <.2 <50 <10 <10 1 <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 I U 1 1.3 2.4 MW-100D 22-Sep-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 0.271 17 1 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 0.05 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 1.2J U 0.16J 0.05J 8.1J 4.J U U I U 1.6 10.8811 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 3.4J 526 0.09J U 0.08J 14 1.3J 0.08J U 7.1J 4.4J U U 0.38J 2.2J MW-100D 25-Mar-14 0.52J 3.5J 397 0.13J 0.05J U 11 0.83J 0.13J U 5.4J 5.5J U 0.03J 1.1J 2.8J MW-100D 27-Ma -15 0.28J 2.7J 342 0.11J U U 10 10.59J U 0.17J U 4.6J 4.2J U U U 0.67J 1.OJ 4.6J MW-100D 29-Se -15 0.19J 1.8J 232 0.10J U U 9.9J O.86J U U 4.6J 3.9J U U 0.58J 1.3J MW-100D 15-Mar-16 0.81J 2.8J 344 0.13J U U 10.0 0.92J U U U 4.9J 4.2J U U U 0.11J 1.3J U MW-100D 27-Se -16 0.46J 2.8J 236 0.16J 0.10J 0.09J 8.6J 0.95J 0.17J U 5.5J 4.9J U U U I 2.4J MW-100D 22-Mar-17 0.26J 1.9J 212 0.09J U U 7.4J 0.61J U U U 4.2J 4.1J U U U 0.22J U 2.8J MW-100D 28-Se -17 0.41J 3.8J 278 0.24J 0.49J 0.28J 7.9J 1.OJ 0.23J U 5.2J 3.9J U U 0.81J 9.4J MW-100D 14-Mar-18 0.15J 1.9J 257 U 0.13J U 7.8J 1.6J U 0.09J U 4.8J 4.7J U U U 0.28J U 4.6J MW-100D 20-Sep-18 0.14J 2.5J 335 0.16J 0.15J 0.18J 10 10.96J 0.20J U 5.9J U U U 0.42J 4.4J MW-100D 4-Apr-19 0.21J 2.9 380 0.20J U 0.70J 9.7 1.9J 0.41J U 8.1 4.8J U U U U U MW-100D 4-Sep-19 U 3.5 360 0.10J U 0.96J 11 1.4 U U 8.2 7.2 U U U U U MW-100D 10-Mar-20 U 2.1 240 U U U 8.9 1.8 U U 7.9 6.3 U U U I U I U MW-100D 3-Sep-20 U 2.9 230 U U 3.3 8.2 1.9 0.40J U 8.9 6.5 U U U U 12 MW-100D 16-Mar-21 U 1.6 220 U U 1.3 8.1 2.2 U U 4.7J U U U 48J U U MW-100D 22-Sep-21 U 1.7 210 U U U 1 6.6 0.79J U 4.4J U U U U U U Page 12 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill `0 .c 0 2 o 2 E m CO E Q 0 Q E 7 m 3 - M 3 E U 0 E = U - U C V v T U 0 - Z i d Y Z E C 5 y > W d w E 3 H ~ cc > C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-101D 28-Sep-00 <3 <5 43 <2 <1 <10 <10 <10 <5 <.2 <20 <2 <10 1600 <1 <2 <10 25 MW-101D 19-Mar-01 <3 <5 26 <2 <1 <10 <5 <10 <5 <20 <2 <5 <100C <1 <10 13 MW-101D 25-Sep-01 <3 <5 31 <2 <1 <10 <5 <10 <5 <20 <2 <10 <1 6 10 MW-101D 22-Mar-02 <3 <5 <5 <2 <1 <10 <5 15 <5 <.2 <20 <2 <10 <100C <1 <2 <10 <10 MW-101D 16-Sep-02 <3 <5 53 <2 <1 <10 <5 15 11 6 <2 <5 <1 17 32 MW-101D 12-Mar-03 <10 <10 14 <2 <1 <10 <10 <10 <10 <.2 <10 <10 <10 <100C <10 <2 <10 <10 MW-101D 16-Oct-03 8 <5 <5 <2 <1 <5 <5 <2 <5 <5 <2 <5 <1 <5 8 MW-101D 30-Mar-04 3 <5 <10 <2 <1 <5 <5 <10 <5 <.2 <10 <2 <5 <100 <1 <2 <10 14 MW-101D 24-Sep-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 <100C <10 <100 <40 <50 MW-101D 20-Sep-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 <100C <10 <100 <40 <50 MW-101D 26-Sep-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 <100C <5 <100 <25 <10 MW-101D 11-Sep-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-Sep-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 0.2 1.7 1 MW-101D 22-Sep-09 0.2 U 2.7 U U U 0.1 0.4 1 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-Se -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 0.06 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 4.1J U 0.04J U 0.15J 6.OJ U U U 29.5J U U U U 0.28 1.3J 9.7J MW-101D 13-Mar-13 0.52 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 2.6J U U 0.06J 0.03J 0.72J 0.05J U 2.5J 0.41J U 0.16J 0.9J 3.7J MW-101D 25-Mar-14 1.OJ 0.48JI 3.3J U 0.08J U U 0.09J 0.051 U U 0.27J U U 1.7J 2.5J MW-101D 27-Ma -15 0.51J U 3.1J 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 0.38J 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 1.5J MW-101D 15-Mar-16 0.84J U 3.9J U 0.07J 0.63J U 0.50J U U U 0.74J U U U U 0.07J U 2.4J MW-101D 27-Se -16 = U 4.3J U 0.19J U 0.04J 0.79JI 0.06J U 0.56J U U 0.10J 0.72J 4.OJ MW-101D 22-Mar-17 1.2J U 4.OJ U 0.10J U U 0.48J U U U 0.581 U U U U U 0.67J 3.OJ MW-101D 28-Se -17 0.39J 0.30J 6.1J U U U U 0.46J U U 0.74J U U U 1.2J 2.2J MW-101D 14-Mar-18 0.38J U I 6.1J U 0.16J U U 0.72J U U U 0.62J U U U U U 0.30J 3.9J MW-101D 20-Se -18 0.20JI0.10JI 8.3J U 0.09J U 0.07J 0.42J U U 0.72J 0.98J U U 0.42J 2.7J MW-101D 5-A r-19 0.10JI U 16 U o.o95J U 0.35J 5.0 0.73J U 1.6J 1.6J U U U U 7.2J MW-101D 4-Sep-19 U U 9.OJ U 0.081J 0.60J U 1.2 0.111 U U 1.91 U U U U 4.1J MW-101D 9-Mar-20 U U 9.01 U 0.10J U U 1.0 U U 2.OJ 2.8J U U U U 2.5J MW-101D 2-Sep-20 U 0.78J 9.4J U 0.053J U 0.17J 1.OJ U U 2.3J 4.2J U U 33J U U MW-101D 16-Mar-21 U 1.3 16 U 0.065J U 0.37J U U U 2.4J 3.7J U U 31J U U MW-101D 22-Sep-21 U U 10J U 0.036J U U 0.46J U 0.56J U U U U U U Page 13 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q 0 � d N a) a- M V) C 0 E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N o U a) 2 o U N 2 C CU U C 0 = -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 'a c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-102S 28-Sep-00 <3 <5 950 7 1 10 38 14 76 <20 3 <10 1200 2 <2 41 106 MW-102S 19-Mar-01 <3 <5 268 2 <1 <10 23 <10 10 <.2 <20 <2 <5 <100C <1 <10 37 MW-102S 25-Sep-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 <100C <1 <2 <10 49 MW-102S 16-Sep-02 <3 <5 164 6 1 <5 127 7 21 7 2 <5 <1 7 49 MW-102S 13-Mar-03 <10 <10 447 1 <10 54 <10 28 <.2 <10 <10 <10 <100C <10 4 11 47 MW-102S 16-Oct-03 <3 <5 387 3 2 6 21 10 37 <5 3 <5 1 <1 22 57 MW-102S 31-Mar-04 <3 <5 338 2 2 <5 38 7 32 <.2 <5 2 <5 <100C 1 17 10 39 MW-102S 24-Sep-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 <100C <10 <100 <40 <50 MW-102S 20-Sep-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 <100C <10 <100 <40 <50 MW-102S 26-Sep-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 <100q <5 <100 <25 18 MW-102S 11-Sep-07 <6 <10 167 <1 <1 <10 172 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-102S 19-Mar-08 <6 <10 192 <1 <1 <10 191 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 12 MW-102S 23-Sep-08 <6 <10 280 <1 <1 <10 232 <10 <10 <.2 <50 <10 <10 <5 1 <25 1 <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 1 4.1 MW-102S 22-Sep-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 1.6 199 0.1 0.1 U 176 0.2 1.9 U 2 0.8 0.1 1 0.3 0.3 3.3 MW-102S 23-Mar-11 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 0.63 1.3 U 2.1 0.56 U 0.51 0.64 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 1.6J 320 0.12J 0.25J U 202 0.53J U 1.5J 0.04J 3.4J 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 0.36 0.58 0.75J 6.9 MW-102S 24-Se -13 0.14J 1.4J 204 0.12J 0.47J U 172 1.1J 5.5J U 4.4J 0.5J U 0.17J 0.42J 12 MW-102S 25-Mar-14 0.08J 1.4J 235 0.10J 0.30J U 171 0.43J 1.2J U 2.3J 0.53J U 0.30J 1.OJ 5.3J MW-102S 27-Ma -15 0.06JI 1.6J 168 0.53J 0.48J U 117 0.30J U 2.9J U 2.OJ 0.99J 0.01J U 0.33J 5.4J 0.69J 12 MW-102S 29-Se -15 0.18J 1.7J 256 0.63J 1 0.96J 171 3.6J 32 0.06J 2.2J 0.96J 0.05J 0.53J 5.1J 61 MW-102S 15-Mar-16 0.08J 1.8J 180 0.50J 0.81J U 110 0.94J U 6.1 U 2.1J 0.98J U U 0.27J 6.9J 1.7J 11 MW-102S 27-Se -16 0.21J 1.5J 329 1 2 1.3J 142 4.1J 40 0.06J 1.9J 1.2J 0.08J 0.61J 7.1J 54 MW-102S 22-Mar-17 U 1.1J 311 0.14J 0.24J U 119 0.22J U 0.081 U 1.0J U U U U 7.OJ U 9.8J MW-102S 28-Se -17 U 1.4J 349 0.16J 0.26J 0.16J 82 0.17J 1.0J U 1.0J U U U 0.49J 1.7J 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 0.81J U 9.2J MW-102S 20-Sep-18 0.08JI 1.1J 479 0.24J 0.43J 0.31J 23 1.3J 4.6J U 1.4J 0.85J U 0.12J 1.2 13 MW-102S 5-Apr-19 U 1.3 290 0.62 0.42J U 50 1.OJ 1.2 U 1.7J U U .92 U U 89 MW-102S 4-Sep-19 U 1.7 350 0.17J 0.072J 0.49J 170 U 0.48J U 2.2J U U 0.66 U U 33 MW-102S 11-Mar-20 U 1.1 340 0.14J 0.040J U 130 1.5 0.33J U 1.7J U U 0.097J U U 3.8J MW-102S 3-Sep-20 U 1.6 300 0.13J 0.047J U 150 U U U 1.81 U U 0.22 U U 4.7J MW-102S 15-Mar-21 U 1.6 190 0.64 0.0801 U 59 U 0.38J U 1.5J U U 0.23 U U 21 MW-102S 21-Sep-21 U 2.2 190 0.16J 0.060J U 130 0.45J 0.26J 2.1J 1.4J 0.042J 0.46 U 5.2J Page 14 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q a d N a) a- M C a E Q U E N i Q E 7 m E 3 - �' m E 7 E a U E 0 U N o U a) 2 o U N 2 C CU U C a = -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 'a c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 200 (1) 1000 MW-103S 28-Sep-00 <3 <5 881 20 <1 41 23 135 39 0.88 <20 2 <10 1800 2 2 236 299 MW-103S 19-Mar-01 <3 <5 900 23 <1 38 19 168 39 0.23 <20 3 <5 <100 2 <10 266 343 MW-103S 25-Sep-01 <3 <5 534 13 <1 20 11 74 22 <20 <2 <10 1 118 188 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-Sep-02 <3 <5 206 5 <1 11 31 7 <5 <2 <5 <1 39 56 MW-103S 13-Mar-03 <10 <10 209 5 <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 <1 7 14 MW-103S 30-Mar-04 <3 <5 86 <2 <1 <5 <5 <10 <5 <.2 <10 <2 <5 <1000 <1 <2 <10 <10 MW-103S 24-Sep-04 <5 <5 77 <5 <2 <5 <5 4 <3 <5 <5 <2 1 <5 7 10 MW-103S 15-Mar-05 <30 <10 <500 <1 <10 19 <200 13 <.5 <50 <20 <10 <100C <10 <100 56 68 MW-103S 20-Sep-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 <100C <10 <100 <40 <50 MW-103S 26-Sep-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 <100C <5 <100 <25 <10 MW-103S 11-Sep-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 <100q <5 <100 <25 15 MW-103S 23-Sep-08 <6 <10 188 4 <1 <10 <10 19 <10 <.2 <50 <10 <10 1 <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-Sep-09 0.1 1.4 268 0.3 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 I 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 2.3J 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-Se -13 0.25J 0.47J 163 3 0.23J 2.6J 3.4J 12 3.6J U 4.8J 0.59J 0.11J 0.21J 15.5J 29 MW-103S 25-Mar-14 0.12J 0.60J 133 2 0.10J 0.56J 2.4J 3.9J 0.98J U 0.67J 1.7J U 0.051 4.3J 14 MW-103S 27-Ma -15 0.16J U 96.9J 1 U U 0.45J 2.3J 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 2.3J 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 2.6J 0.82J U 0.46J U U U U 2.6J 4.6J MW-103S 27-Se -16 0.07J U 133 2 0.26J 1.8J 2.2J 9.3J 5.2J U 1.3J U 0.08J 0.20J 13.OJ 27 MW-103S 22-Mar-17 0.09J U 101 1 0.37J U 1.1J 3.4J U 0.85J U 0.46J U U U U 0.06J 3.2J 8.4J MW-103S 28-Se -17 U 1.2J 220 4 0.66J 3.7J 2.8J 16 8.6J U 2.3J U U 0.36J 45 56 MW-103S 14-Mar-18 U 1.6J 396 6 0.96J 6.6J 4.5J 29 U 13 0.49 2.8J 0.66J 0.30J U 0.81J 0.71J 55 129 MW-103S 20-Se -18 0.04J 0.22J 95.5 0.88J 0.34J 0.78J 1.1 4.3J 0.92J U 0.48J 0.30J U 0.05J 4.3 12 MW-103S 5-Apr-19 U U 100 1.3 U U 0.29J 6.4 1.4 U U U U U U U 11 MW-103S 4-Sep-19 U U 87 0.49 U 0.69J 0.47J 1.2 0.25J U U U U U U U 3.6J MW-103S 9-Mar-20 U U 77 0.49 U 0.97J 3.6 1.5 0.111 U U U U U U U 4.7J MW-103S 3-Sep-20 U U 58 0.28J U U 1.3 1.0 U U U U U U U U U MW-103S 15-Mar-21 U U 79 0.93 U U 2.3 2.6 0.32J U U U U U U 6.2 6.7J MW-103S 21-Sep-21 U U 61 0.17J U 0.97J 0.51J 1.7 0.17J 0.591 1.01 U U U U Page 15 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - `Q c 2 d o N E o Q a)7 Q e m - CO E U _ U � U °' G U C U C p a N J V d Y Z C y d > N V = y = cc F C ~ V cc C NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 2000 0.3 1000 MW-104S 28-Sep-00 <3 <5 1290 4 1 13 27 38 29 <.2 <20 5 <10 <100 2 3 57 230 MW-104S 19-Mar-01 <3 <5 1120 5 2 16 28 48 43 <20 5 <5 2 <10 63 386 MW-104S 25-Sep-01 <5 2030 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-Sep-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 <100C <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 <100C 1 4 23 249 MW-104S 24-Sep-04 <5 <5 580 <5 <2 <5 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 <100C <10 <100 <40 <50 MW-104S 20-Sep-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 <100C <10 <100 <40 <50 MW-104S 26-Sep-06 <30 <10 <500 <2 <1 <10 12 <200 <10 <.5 <50 <20 <10 I <10 <40 <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-Sep-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 <100C <5 <100 <25 <10 MW-104S 23-Sep-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 1.1 8 MW-104S 22-Sep-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-Se -12 0.05J 0.73J 241 0.1J U U 5.6J 1.7J U 0.44J 0.05J 2.1J 1.2J U U U 0.62 1.OJ 14 MW-104S 19-Se -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 1.3J 8060 0.08J U 2.5J 1.5J U 0.04J 0.94J 11 MW-104S 25-Mar-14 0.03J 0.35J 303 0.30J 0.26J U 3.4J 0.61J 2487 U U 1.3J 1.3J U 0.04J 0.35J 37 MW-104S 28-May-15 0.05J U 290 0.47J 0.80J 0.17J 3.3J 3.OJ U 487 1.5J U 2.2J 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 1.6J 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 2.8J 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 1.6J U U 0.13J 0.36J 11 MW-104S 23-Mar-17 U U 257 0.83J 0.41J 0.08J 4.7J 1.9J U 6557 1.8J U 1.9J 1.9J 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 1.1J U U U U 0.61J 9.OJ MW-104S 15-Mar-18 0.07J 1.5J 403 0.71J 0.58J 0.80J 6.2J 4.OJ U 14413 4.4J U 3.OJ 3.5J 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 1.2J 229 U U 1.3J 1.1J U U U 0.19J 4.9J MW-104S 4-Apr-19 U 0.61 160 0.29J 0.20J U 0.59J 1.6J 71 U 0.065J U U U U U U 5.1J MW-104S 4-Sep-19 U U 170 0.28J 0.18J 0.70J 0.40J 1.8 89 U U 0.801 U U 0.0551 U U 3.8J MW-104S 11-Mar-20 U U 200 0.56 0.41 0.95J 1.9 89 U 0.46 1.4J 2.9J U 0.0501 U U 4.8J MW-104S 2-Sep-20 U U 60 0.23J 0.084J 0.94J U 0.94J 42J U 0.12 U U U 0.026J U U 2.7J MW-104S 16-Mar-21 U U 170 0.57 0.26 U 0.34J 1.1 160 U 0.061J 0.84J U U 0.046J U U 6.1J MW-104S 22-Sep-21 U U 120 0.32J 0.23 U 0.37J U 85 U U 0.54J U U U U U U Page 16 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill N `p G o 2 M y T E Q N Q E 7 m 3 - M E V 0 E U M U C U a U O Z V Y Z c y > N d = N E cc ~ C �_ i C NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (1) 2(1) 01) 1000 MW-104D 28-Sep-00 <3 <5 88 <2 <1 <10 <10 49 5 <.2 <20 <2 <10 <100C <1 <2 20 58 MW-104D 19-Mar-01 <3 <5 31 <2 <1 <10 <5 <10 <5 <20 <2 <5 <1 <10 <10 MW-104D 25-Sep-01 <3 <5 35 <2 <1 <10 <5 <10 <5 <20 <2 <10 <1 <5 8 MW-104D 22-Mar-02 <3 <5 30 <2 <1 <10 <5 <10 <5 <.2 <20 <2 <10 <100C <1 <2 <10 <10 MW-104D 16-Sep-02 <3 <5 31 <2 <1 <5 <5 2 <5 <5 <2 <5 <1 <5 6 MW-104D 12-Mar-03 <10 <10 34 <2 <1 <10 <10 <10 <10 <.2 <10 <10 <10 1000 <10 <2 <10 <10 MW-104D 16-Oct-03 <3 <5 35 <2 <1 <5 <5 2 <5 <5 <2 <5 <1 <5 6 MW-104D 30-Mar-04 9 <5 38 <2 <1 <5 <5 <10 <5 <.2 <10 <2 <5 <100 <1 <2 <10 <10 MW-104D 24-Sep-04 <5 <5 39 <5 <2 <5 <5 <3 <3 <5 <5 <2 <5 <5 6 MW-104D 15-Mar-05 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <100C <10 <100 <40 <50 MW-104D 20-Sep-05 <30 <10 <500 <2 3 <10 <10 <200 <10 <.5 <50 <20 <10 <10 <40 <50 MW-104D 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <100C <10 <100 <40 <50 MW-104D 26-Sep-06 <30 <10 1 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 I <10 <40 <50 MW-104D 21-Mar-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 I <10 <1000 <5 <100 <25 <10 MW-104D 11-Sep-07 <6 <10 <100 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 1 <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-Sep-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-Sep-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 0.2 145.3 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 0.2 148.2 0.1 0.2 U 0.2 0.9 0.1 U 0.8 1 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 0.431 U U 1 0.03 4 2.4 8.6 MW-104D 26-Se -11 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 0.7 0.28 46.6 U 0.43 U 0.18 1.2 U 0.04 0.06 0.25 0.8 0.05 U U U 2.4 3.3 MW-104D 18-Se -12 1.4J 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 1.8J 0.41 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 0.83J 0.12J 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 1.6J 0.25J 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 1.5J 0.19J 58.9J U 0.22J U 0.16J 0.52J U 0.11J U 0.66J 0.811 U U 0.02J 0.56J 0.85J 9.5J MW-104D 29-Se -15 0.58J 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 0.92J U 88.2J U 0.15J U 1.4J 1.OJ U U U 1.4J 0.82J U U 0.06J 0.33J 1.OJ 5.3J MW-104D 27-Se -16 1.2J U 69.4J 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 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 0.45J 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 0.64J 0.47J 85.6J U 0.96J U 0.73J 1.3J U 0.11J U 1.4J 0.82J U U U U 0.42J 14 MW-104D 20-Se -18 0.29J 0.06J 74.4 U 0.44J U 0.89J 1.OJ 0.06J U 1.1J 0.70J U U 0.17J 13 MW-104D 4-A r-19 U 0.83 84 U 0.15J U 1.4 1.4J U U 1.7J U U U U U 11 MW-104D 4-Se -19 U U 83 U 0.077J 0.45J 1.4 0.94J 0.22J U 1.7J 0.029J U U 9.5J MW-104D 11-Mar-20 U U 88 U 0.079J U 1.1 U U 2.4J 0.025J U U 7.2J MW-104D 2-Sep-20 U U 77 U U U 1.7 U U U 2.5J IDNSDNS 0.0221 24J U 5.OJ MW-104D 15-Mar-21 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS MW-104D 22-Sep-21 U U 90 U 0.029J U 0.42J U 1.7J U U 9.3J Page 17 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - `Q c 2 d o N E o Q a)7 Q e m - CO E U _ U � U °' G U C U C p a N J V d Y Z C y d > N V = y = cc F C ~ V cc C NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2(1) 2000 0.3 1000 MW-105S 28-Sep-00 <3 <5 994 3 <1 10 19 17 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 <100C <1 38 142 MW-105S 25-Sep-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 <100C <1 <2 64 104 MW-105S 17-Sep-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 <100C <10 <2 15 26 MW-105S 16-Oct-03 <3 <5 260 <2 <1 <5 19 10 <5 <5 <2 <5 1 <1 9 20 MW-105S 31-Mar-04 <3 <5 296 <2 <1 <5 14 6 <5 <.2 <5 <2 <5 <1000 <1 15 <5 8 MW-105S 24-Sep-04 <5 <5 337 <5 <2 <5 8 4 <3 <5 <5 <2 1 <5 6 9 MW-105S 15-Mar-05 <30 <10 <500 <2 <1 <10 18 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-105S 20-Sep-05 <30 <10 <500 <2 <1 <10 23 <200 <10 <.5 <50 <20 <10 I <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-Sep-06 <30 <10 <500 <2 <1 <10 39 <200 <10 <.5 <50 <20 <10 I <10 <40 <50 MW-105S 21-Mar-07 <6 <10 122 <1 <1 <10 43 <10 <10 <.2 <50 <10 <10 <100C <5 <100 <25 <10 MW-105S 11-Sep-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 <100C <5 <100 <25 <10 MW-105S 23-Sep-08 <6 <10 <100 <1 1 <10 14 <10 <10 <.2 <50 <10 <10 <5 <25 <10 MW-105S 18-Mar-09 U 0.4 101 0.1 0.7 U 26 1 U 0.8 0.07 0.4 0.1 0.1 U 0.1 0.8 1 9.1 MW-105S 22-Sep-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 27 3.1 U 1 U U U 0.1 U U 0.2 1.6 7.4 MW-105S** 21-Sep-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-105S** 26-Sep-11 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-Sep-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 0.10J 0.06J 2.2J 0.23J 0.06J 0.05J U U U 0.091 0.17J 5.5J MW-105S 27-May-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-Sep-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 0.10J 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-Sep-16 0.08J U 174 1 0.14J 2.7J 2.8J 3.OJ 1.9J U 2.4J U U 0.17J 5.2J 11 MW-105S 22-Mar-17 U U 183 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-Sep-17 U 0.86J 364 0.87J 6 12 3.3J 12 10 0.11J 10.2J 0.72J U 0.31J 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 MW-105S 4-Apr-19 U U 200 1.1 0.086J U 2.3 1.3J U 0.39 U U U 0.11J U U U MW-105S 4-Sep-19 U U 190 0.93 0.083J 0.52J 2.4 1.3 0.13J 0.31 U U U 0.11J U U 2.9J MW-105S 10-Mar-20 U U 190 0.93 0.072J U 2.3 1.5 0.111 0.0551 U U U 0.11J U U U MW-105S 3-Sep-20 U U 170 0.84 0.078J 1 1.9 2.2 U 0.21J 0.43 0.70J U U 0.096J U U 4.6J MW-105S 16-Mar-21 U U 190 1.0 0.089J 1.2 2.0 1.1 0.13J 0.14 U 0.11J U U 21-Sep-21 U U 200 0.93 0.071J 0.99J 2.4 0.54J 0.15 0.20.5J 099 0.10JMW-105S U I U Page 18 of 19 Table 3 Historical Assessment Monitoring Results - Metals Wilders Grove Landfill - Q a 2 d N a) a- M rn C a E Q U E N Q E 7 m E 3 - s'' m E 7 E a U E 0 U N 0 U a) 2 o U N 2 a CU U a a - -a R J 3 U d -y Y Z E 3 c a> N N > - y a) 'a h E a - m H _ H E 2 .0 c > U C N NC 2L Standard 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 70 300 15 1 100 20 20 NE 0.2 (I) 2000 0.3 1000 MW-106S 22-Mar-02 <3 <5 267 5 1 18 8 41 42 <.2 <20 3 <10 <1000 1 <2 63 146 MW-106S 16-Sep-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 <100C <10 <2 14 23 MW-106S 17-Oct-03 <3 <5 172 3 1 13 7 34 33 7 4 <5 <1 51 86 MW-106S 31-Mar-04 <30 <5 122 <2 <1 6 <5 16 18 <.2 <5 <2 <5 <1 3 25 42 MW-106S 24-Sep-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 <100q <10 <100 <40 <50 MW-106S 20-Sep-05 <30 <10 511 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 I <10 <40 <50 MW-106S 23-Mar-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 <1000 <10 <100 <40 <50 MW-106S 26-Sep-06 <30 <10 <500 <2 <1 <10 <10 <200 <10 <.5 <50 <20 <10 I <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-Sep-07 <6 <10 365 <1 <1 <10 <10 <10 <10 <.2 <50 <10 <10 1 <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-Sep-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 10.9 15 MW-106S 22-Sep-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-Sep-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 1 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 0.05.1 0.41J 68.8J U 0.13J U 0.19J 1.1J U 0.61J 0.03J 1.4J 0.77J U U U 0.46 1.1J 6.4.1 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 1.1J 4.2 MW-106S 25-Se -13 0.112.1 0.41J 48 0.05J 0.07J U 0.1J 0.69J 164J 0.21J U 1.3.1 1.1J U 0.1J 0.98J 4.1J MW-106S 25-Mar-14 0.116.1 0.39J 24.5J 0.06J U 0.05J 0.19J U 333 0.41J U U 0.53J 0.03J 0.07J 0.45J 4.3.1 MW-106S 28-Ma -15 0.06.1 U 108 0.06J 0.06J 0.20J 0.14J 0.76J U 173J 0.38J U 0.82.1 1.2J 0.04J U 0.07J U U 4.OJ MW-106S 30-Se -15 0.06.1 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 0.112.1 U 39.5.1 0.08J 0.12J 1.OJ 0.19J 0.88J U 363 0.51J U 0.81.1 U U U 0.12J 0.16J U 4.3J MW-106S 28-Se -16 0.114.1 2.OJ 401 0.47J 0.32J 1.5J 1.OJ 9.7J 3936 5.4J U 4.2.1 5.4J 0.09.1 0.23J 5.4J 17 MW-106S 23-Mar-17 U U 36.7.1 0.08J U U 0.19J 1.OJ U 485 0.62J U 0.44.1 0.81J U U U U 0.56J 3.4J MW-106S 27-Se -17 0.112.1 1.OJ 411 U 0.45J 0.15J 0.40J 7.3J 308 0.34J U 3.0.1 4.8J I U U U 0.79J 13 MW-106S 15-Mar-18 U 0.36J 29.1.1 0.10J 0.24J 0.33J 0.30.1 1.5J U 772 1.3J U 0.82.1 0.57J U U U U 1.4J 6.1.1 MW-106S 24-Se -18 0.116.1 0.09J 35.7 0.06J 0.03J 0.26J 0.29J 0.72J 314 0.14J U 0.82.1 0.70J U U U 0.36J 7.8J MW-106S 4-Apr-19 U U 42 U U 0.45J U 1.8J 130 U U U U U U U U U MW-106S 5-Sep-19 U 1.5 310 U 0.096J 0.68J 0.69J 4.6 520 0.14J U 2.8J 5.5 U 0.11J 0.034J U U MW-106S 10-Mar-20 U U 24 U U U U 1.2 71 0.16J U U U U U U U U MW-106S 1-Sep-20 U U 21 0.12J U 1.6 0.24J 1.2 1000 1.2 U U U U 0.036J U U 3.7.1 MW-106S 16-Mar-21 U U 21 U U U U U 75 0.13J U 0.98J U U 0.021J U U U MW-106S 22-Sep-21 U U 170 U 0.068J U 0.28J 1.9 220 U 1.OJ 0.82J U U 0.078J U U Notes: All units are in micrograms per liter (pg/L). ** Damaged well; Did Not Sample (DNS). MW-10 was damaged beyond repair by operations equipment in 2011 and was abandoned on August 30, 2018. < #: 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. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 19 of 19 Table 4 Historical Assessment Monitoring Results - Pesticides, Herbicides, and Polychlorinated Biphenyls Wilders Grove Landfill Recorded Concentration* Monitoring Well Number Detected Constituent NC 2L Standard March 18, 2009 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 April 3-6, 2019 September 3-5, 2019 March 9-11, 2020 August 31 - September 3, 2020 March 15- March 17, 2021 September 20-23, 2021 Dinoseb 7 /L I DNA DNA DNA DNS U U U U U U U DNS U DNS U DNS MW-1 2,4,5-T NS DNA DNA DNA DNS U U U U U U U DNS U DNS U DNS 2,4,5-TP 50 pg/L -- -- -- DNS U U U U U U U DNS U DNS U DNS Beta-BHC 0.02 /L I 0.047 U U U U U U U U DNS U U U DNS MW-2 Endosulfan 1 40 /L U U U DNS 0.026 J 0.020 J U DNS Heptachlor Epoxide 0.004 pg/L U U U DNS 0.0061 J U U DNS MW-3 2,4,5-T NS DNA DNA DNA DNS U U U U U U U DNS U DNS U DNS 4,4'-DDE 0.1 pg/L (1) -- U U U U U U U U U U 0.0055 J U U DNS U DNS MW-4 Heptachlor Epoxide 0.004 pg/L U U U U U U U U U U U 0.031 U DNS U DNS Aldrin 0.002 /L I 0.035 U U U U U U U U DNS U DNS U U Beta-BHC 0.02 /L I 0.111 U U Gamma-BHC 0.03 /L U U U U U U U U DNS U DNS U U MW-6 2,4-D 70 /L U U U U U U U U DNS U DNS U DNS 4,4-DDT 0.1 /L 0.083 U DNS U DNS 0.013 J U Endosulfan sulfate 40 /L I U DNS U DNS 0.035 J U Heptachlor 0.008 pg/L 0.039 J U U U U U U U DNS U DNS U U MW-8 Beta-BHC 0.02 pg/L (1) 0.037 J U U U U U U U DNS U DNS U DNS MW-9 None DNS U DNS U DNS MW-10 Gamma-BHC 0.03 pg/L 0.064 0.037 DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS U DNS MW-11 None DNS DNS U DNS AI ha-BHC 0.006 /L (I) 0.047 U U U U U U U U DNS U DNS U DNS MW-12 Beta-BHC 0.02 /L I 0.045 0.032 U U U U U U U U DNS U DNS U DNS Endrin 2 pg/L U U U U U U U U DNS U DNS U DNS Aldrin 0.002 /L 1 -- 0.043 -- -- U U U U U U U U DNS U DNS U DNS MW-100S Gamma-BHC 0.03 pg/L U U U U U U U U DNS U DNS U DNS Delta-BHC NS 0.046 0.037 0.044 U U U U U U 0.035 J U DNS U DNS U DNS Gamma-BHC 0.03 /L U U U U U U U U DNS U DNS U DNS 2,4,5-T NS - DNA DNA DNA U U U U U U U U DNS U DNS U DNS MW-100D 2,4,5-TP 50 /L U U U U U 1.00 J U U DNS U DNS U DNS Dieldrin 0.002 /L U U U U U U U U DNS U DNS U DNS Heptachlor 0.008 pg/L U U U U U U U U DNS U DNS U DNS MW-101D None DNS U DNS U DNS 4,4-DDT 0.1 /L 0.061 U U U U U DNS U U U U DNS U DNS Aldrin 0.002 /L I 0.044 U U U U U DNS U U U U DNS U DNS AI ha-BHC 0.006 /L I - 0.039 0.101 U U U 1.39 0.92 DNS U U U U DNS U DNS MW-102S Beta-BHC 0.02 /L I 0.066 U U U U U DNS U U U U DNS U DNS Delta-BHC NS 0.042 U U U U U DNS U U U U DNS U DNS Endosulfan 1 40 pg/L 0.0028 J 0.0028 J U DNS U DNS MW-103S None DNS DNS U DNS MW-104S 2,4,5-TP 50 pg/L 0.079 0.059 DNS U U U U U U U DNS U DNS U DNS Alpha-BHC 0.006 pg/L (1) 0.04 J U U DNS U DNS DNS DNS Delta-BHC NS -- -- -- DNS U U U 0.073 0.20 0.055 U DNS U DNS DNS DNS MW-104D 2,4,5-TP 50 /L DNS U U U U U U U DNS U DNS DNS DNS Meth ox chlor 40 /L DNS U 0.58 J U U U U U DNS U DNS DNS DNS Heptachlor 0.008 pg/L DNS U U U U U U U DNS U DNS DNS DNS MW-105S Methyoxchlor 40 pg/L U U 0.90 J U U DNS U U NSS U NS NSone MW-106S D D NS D Notes: *Concentration in parts per billion (ppb) or micrograms per liter (µg/L) ": Below Practical Quantitation Limits (PQL's) DNA: Data not available DNS: Not sampled. MW-10 was damaged beyond repair by operations equipment in 2011 and was abandoned on August 30, 2018. (1) - Interim Maximum Allowable Concentrations established under 15A NCAC 2L.0202 J: Estimated value NS: Per 15A NCAC 02L.0202, substances which are not naturally occurring and for which no standard is specified shall not be permitted in concentrations at or above the practical quantitation limit in Class GA or Class GSA groundwaters. PCB: Polychlorinated Biphenyl U: Not detected Shaded and bold concentrations exceed the NC 2L Groundwater Protection Standards. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 1 of 1 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill w w 3Yw wv L w N w E o°. L w w o M A w o M O w O N w O LO o£ w O ` O C OO O. uOC ` ¢ oc c° o Cw C £ o o o uo G u'pW A m V NE C U V O -Idm In NrcHl VrcHl Np rrwll NrwOl Narti ~oauC. O rl aw w .a-uI NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 MW-201S 9/21/2010 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 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 MW-201S 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 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 MW-201S 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 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 MW-201S 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 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 MW-201S 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 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 MW-201S 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 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 MW-201S 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 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 MW-201S 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 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 MW-201S 4/4/2019 U U U U U 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 9/3/2019 U U U U U 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 3/11/2020 U U U U U 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 9/2/2020 U U U U U 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 3/17/2021 U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2015 9/21/2021 U U U U 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 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O- O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (1) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6(1) 3 2000 0.005 88 (I) 0.03 500 MW-201S 9/22/2009 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 MW-201S 3/22/2010 U U U U U U U U U U U U U U U U U U MW-201S 9/21/2010 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 MW-201S 9/26/2011 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 MW-201S 9/19/2012 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 MW-201S 9/25/2013 U U U U U 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 MW-201S 5/28/2015 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 MW-201S 3/16/2016 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 MW-201S 3/23/2017 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 MW-201S 3/15/2018 U U U 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 MW-201S 4/4/2019 U U U U U U U U U U U U U U U U U U U MW-201S 9/3/2019 U U U U U U U U U U U U U U U U U U U MW-201S 3/11/2020 U U U U U U U U U U U U U U U U U U U MW-201S 9/2/2020 U U U U U U U U U U U U U U U U U U U MW-201S 3/17/2021 U U U U U U U U U U U U U U U U U U U MW-201S 9/21/2021 U U U U U U U U U U U U U U U U U U U Page 2 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3Yw wv O. uOC ` ¢ w L O Cc w O N N oc c° mm w w U o VU E O Cw C V o°. LO £ rl o£ aw N -Idm L w o In rcHl w o w o rcHl w o uo p w M O rl A ` O o M G Narti C u'pW w O ~oauC. OO A NC 2L Standard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 MW-202S 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 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 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 MW-202S 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 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 MW-202S 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 I U U U U U MW-202S 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 MW-202S 12/27/2012 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 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 MW-202S 6/26/2013 U U U U U U U U U U U U U U U U U U U U U U U 0.31 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 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 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 MW-202S 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 0.301 U U U U MW-202S 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 0.401 U U U U MW-202S 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 0.401 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 0.601 U U U U MW-202S 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 MW-202S 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 0.301 U 1.201 U U U U MW-202S 9/29/2016 U U U U U U U U U U U U U U U U U U U U U 0.301 U 1.601 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 0.201 U 1.101 U U U U MW-202S 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 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 MW-202S 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 0.301 U U U U MW-202S 12/20/2017 U U U U U U U U U U U U U U U U U U U U U U U 0.4J 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 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 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 MW-202S 12/18/2018 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 MW-202S 4/3/2019 U U U U U U U U U U U U U U U U U U U U U U U 0.401 U U U U MW-202S 6/5/2019 U U U U U U U U U U U U U U U U U U U 0.17J U U U 0.63J U U U U MW-202S 9/3/2019 U U U U U U U U U U U U U U U U U U U U U U U 0.431 U U U U MW-202S 3/11/2020 U U U U U 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 9/1/2020 U U U U U 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 3/17/2021 2.6J U U U U 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 1 9/21/2021 U U U U U U U U U U U U U U U U U U U U U U U 0.207 —Uj U I U U Page 3 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O- O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6(1) 3 2000 0.005 88 (I) 0.03 500 MW-202S 9/22/2009 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 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 MW-202S 9/21/2010 U U U U U U U U U U U U 0.3 U U U U U MW-202S 3/23/2011 U U U U U U U U U U U U U U U U U U MW-2025 9/26/2011 U U U U U U U U U U U U U U U U U U MW-202S 3/28/2012 U U U U U U U U U U U U U U U U U U MW-202S 9/19/2012 U U U U U U U U U U U U U U U U U U MW-202S 12/27/2012 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 MW-202S 6/26/2013 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 MW-202S 12/31/2013 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 MW-202S 6/26/2014 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 0.20J U U U 0.30J U U U U U MW-202S 9/30/2015 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 0.20J U U U 0.40J U U U U U MW-202S 3/16/2016 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 0.50J U U U 0.70J U U U U U MW-202S 9/29/2016 U U U U U U U U 0.60J U U U 0.80J U U U U U MW-202S 12/21/2016 U U U U U U U U U U U U 0.60J U U U U U MW-202S 3/23/2017 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 MW-202S 9/29/2017 U U U U U U U U U U U U U U U U U U MW-202S 12/20/2017 U U U U U U U U U U U U 0.31 U U U U U MW-2025 3/15/2018 U U U U U U U U U U U U U U U U U U MW-2025 6/6/2018 U U U U U U U U U U U U U U U U U U MW-2025 9/25/2018 U U U U U U U U U U U U U U U U U U U MW-2025 12/18/2018 U U U U U U U U U 0.11J U U U U U U U U U MW-2025 4/3/2019 U U U U U U U U U U U U U U U U U U U MW-202S 6/5/2019 U U U U U U U U U U U U 0.35J U U U U U MW-2025 9/3/2019 U U U U U U U U U U U U U 0.24J U U U U U MW-202S 3/11/2020 U U U U U U U U U U U U U U U U U U U MW-202S 9/1/2020 U U U U U U U U U U U U U U U U U U U MW-202S 3/17/2021 U U U U U U U U U U U U U U U U U U U MW-202S 9/21/2021 U U U U U U I U I U U U U U U U U U U U U Page 4 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3Yw wv O. uOC ` ¢ w L O C w O N N oc c° w m w U o V E O Cw C V O o°. LO £ rl o£ aw NE -Idm L w o In w NrcHl o w VrcHl o w o uo Np w M O rrwll A ` NrwOl O .a-uI o w M G Narti C u'pW w O ~oauC. OO A NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 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 MW-202D 3/23/2011 U U U U U U U U U U U U U U U U U U U U U 0.9 U 2.0 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 MW-202D 3/28/2012 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 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 MW-202D 12/27/2012 12.60 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 U MW-202D 3/13/2013 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 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 MW-202D 9/25/2013 U U U U U U U U U U U U U U U U U U U U U 0.9 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 1.0J U 1.1J U U U U MW-202D 3/25/2014 U U U U U U U U U U U U U U U U U U U U U 1.301 U 3.401 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 MW-202D 5/28/2015 U U U U U U U U U U U U U U U U U U U 0.501 U 1.201 U 1.301 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 0.401 U 1.001 U 2.101 U U U U MW-202D 12/10/2015 U U 0.301 U U U U U U U U U U U U U U U U 0.501 U 1.401 U 4.301 U U U U MW-202D 3/16/2016 U U 0.301 U U 0.301 U U U U U U U U U U U U U 0.601 U 1.401 U U U U U U MW-202D 6/22/2016 U U 0.301 U U U U U U U U U 0.301 U U U U U U 0.601 U 1.301 U U U U U U MW-202D 9/29/2016 U U 0.301 U U U U U U U U U U U U U U U U 0.601 U 1.401 U U U U U U MW-202D 12/21/2016 U U 0.401 U U U U U U U U U U U U U U U U 0.701 U 1.501 U U U U U U MW-202D 3/23/2017 U U 0.301 U U U U U U U U U U U U U U U U 0.501 U 1.401 U U U U U U MW-202D 6/27/2017 U U 0.40J U U U U U U U U U U U U U U U U 0.701 U 1.501 U 3.601 U U U U MW-202D 9/29/2017 U U 0.401 U U U U U U U U U U U U U U U U 0.701 U 1.701 U 3.301 U U U U MW-202D 12/20/2017 U U 0.401 U U U U U U U U U U U U U U U U 0.701 U 1.801 U U U U U U MW-202D 3/15/2018 U U 0.301 U U 3.80 U U U U U U U U U U U U U 0.601 U 1.601 U U U U U U MW-202D 6/6/2018 9.101 U 0.401 U U 1.401 U U U U U U 0.301 U U U U U U 0.901 U 1.901 U U U U U U MW-202D 9/25/2018 U U 0.401 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 10.12J I U U MW-202D 12/18/2018 U U 0.47J U U U U U U U U U U U U U U U U 10.88J U 1.59J 0.04J 1.08J U 0.12J U U MW-202D 4/3/2019 U U 0.511 U U U U U U U 0.33J U U U U U U U U 0.861 U 1.4 U 5.0 U U U U MW-202D 6/5/2019 U U 0.56J U U U U U U U 0.33J U U U U U U U U 0.94J U 1.6 U 5.0 U U U U MW-202D 9/3/2019 3.9J U 0.44J U U U U U U U 0.30J U U U U U U U U 0.78J U 1.2 U 4.1 U U U U MW-202D 3/11/2020 U U 0.441 U U U U U U U 0.29J U U U U U U U U 0.851 U 1.1 U 4.6 U U U U MW-202D 9/1/2020 U U 0.371 U U U U U U U 0.33J U U U U U U U U 0.881 U 1.2 U 5.1 U U U U MW-202D 3/17/2021 U U 0.401 U U U U U U U 0.39J U U U U U U U 0.161 0.881 U 1.0 U 4.8 U U U U MW-202D 1 9/21/2021 U I U 0.33J U U U U U U U U U U U I U U U U U I 0.69J U 0.98J U 3.9 U U U U Page 5 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O. O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6(1) 3 2000 0.005 88 (I) 0.03 500 MW-202D 9/22/2009 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 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 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 2.2 U U U 2.8 U U U U U MW-202D 3/23/2011 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 2.5 U U U 3.6 U U U U U MW-202D 3/28/2012 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 2.6 U U U 3.5 U U U U U MW-202D 12/27/2012 U U U U U U U U U U U U U U U U U U MW-202D 3/13/2013 U U U U U U U U U U 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 MW-202D 9/25/2013 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 2.2 U U U 1.6 U U U U U MW-202D 3/25/2014 U U U U U U U U 3.50 U U U 4.501 U I U U U U MW-202D 6/26/2014 U U U 0.80J U U U U U U U U U U U U U U MW-202D 5/28/2015 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 2.40 U U U 2.60 U U U U U MW-202D 12/10/2015 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 I U 1.201 U U U U 0.30J U U U U U U U U U MW-202D 6/22/2016 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 U 1.20 U U U U U U U U U U U U U U MW-202D 12/21/2016 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 U 1.40 U U U U 1.20 U U U U U U U U U MW-202D 6/27/2017 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 U 1.40 U U U U 2.80 U U U 2.90 U U U U U MW-202D 12/20/2017 U U I U 11.501 U U U U U U U U U U U U U U MW-202D 3/15/2018 U U U 1.60 U U U U U U U U U U U U U U MW-202D 6/6/2018 U U U 2.00 U U U U U U U U U U U U U U MW-202D 9/25/2018 U U U U 1.78 U U U U 0.52 U U U U U U U U U MW-202D 12/18/2018 U U U U 2.13 U U U U 2.82 U U U 1.53 U U U U U MW-202D 4/3/2019 U U U U 1.91 U U U U 3.0 U U U 4.0 U U U U 0.671 MW-202D 6/5/2019 U U U 1.7J U U U U 3.3 U U U 4.5 U U U U 0.31J MW-202D 9/3/2019 U U U U I 1.1J U U U U 3.2 U U U 3.8 U U U U 0.61J MW-202D 3/11/2020 U U U U 1.41 U U U U 2.8 U U U 4.2 U U U U 0.231 MW-202D 9/1/2020 U U U U 1.01 U U U U 2.6 U U U 3.8 U U U U 0.211 MW-202D 3/17/2021 U U U U 1.11 U U U U 2.6 U U U 3.4 U U U U 0.411 MW-202D 9/21/2021 U U U U 0.93JI U U I U I U 1 2.0 1 U I U I U 1 3.1 1 U U U U 0.361 Page 6 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3Yw wv O. uOC ` ¢ w L O Cc w O N N oc c° mm w w U o VU E O Cw C V o°. LO £ rl o£ aw N -Idm L w o In rcHl w o w o rcHl w o uo p w M O rl A ` O o M G Narti C u'pW w O ~oauC. OO A NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 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 MW-203S 3/23/2011 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 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 MW-203S 9/19/2012 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 MW-203S 12/27/2012 U U U U U U U U U U 0.30J U U U U U U U U 1.10 U 0.201 U 1.101 U U U U MW-203S 3/13/2013 U U U U U U U U U U 0.4 U U U U U U U U 1.2 U U U 1.3 U U U U MW-203S 6/26/2013 U U U U U U U U U U 0.4J U U U U U U U U 1.2 U 0.31 U 1.51 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 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 0.81 U U U 0.81 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 0.901 U 0.201 U 1.301 U U U U MW-203S 6/26/2014 U U U U U U U U U U U U U U U U U U U 0.701 U U U 0.501 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 U U 0.501 U U U 0.401 U U U U MW-203S 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 0.301 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 0.401 U U U 0.601 U U U U MW-203S 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 0.401 U U U U MW-203S 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 0.301 U U U U MW-203S 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 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 0.301 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 0.301 U U U U MW-203S 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 0.30J U U U U MW-203S 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 MW-203S 12/20/2017 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 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 U U 0.301 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 U U 0.301 U U U U 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 MW-203S 12/18/2018 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 MW-203S 4/4/2019 U U U U U U U U U U 0.16J U U U U U U U U 0.211 U U U I U U U U U MW-203S 6/4/2019 U U U U U 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 9/3/2019 U U U U U 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 3/12/2020 U U U U U 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 9/1/2020 U U U U U 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 3/17/2021 U U U U U 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 9/21/2021 U U U U 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 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O. O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6(1) 3 2000 0.005 88 (I) 0.03 500 MW-203S 9/22/2009 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 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 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 U 0.8 U U U U 1.1 U U U 2.3 U U U U U MW-203S 3/23/2011 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 U 0.9 U U U U 1.0 U U U 2.2 U U U U U MW-203S 9/19/2012 U U U U U U U U 0.5 U U U 1.0 U U U U U MW-203S 12/27/2012 U U U U U U U U 0.20J U U U 0.30J U U U U U MW-203S 3/13/2013 U U U U U U U U 0.4 U U U 0.7 U U U U U M W-203S 6/26/2013 U U U U U U U U 0.4 J U U U 0.7 J U U U U U MW-203S 9/25/2013 U U U U U U U U U U U U 0.3 U U U U U MW-203S 12/31/2013 U U U U U U U U U U U U 0.5J U U U U U MW-203S 3/25/2014 U U U U U U U U 0.20J U U U 0.70J U U U U U MW-203S 6/26/2014 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 U MW-203S 9/30/2015 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 MW-203S 3/16/2016 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 U U U U U U MW-203S 9/29/2016 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 MW-203S 3/22/2017 U U U U U U U U U U U U U U U U U U MW-203S 6/27/2017 U U U U U U U U U U U U U U U U U U MW-203S 9/29/2017 U U U U U U U U U U U U U U U U U U MW-203S 12/20/2017 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 MW-2035 6/6/2018 U U U U U U U U U U U U U U U U U U MW-2035 9/25/2018 U U U U U U U U U U U U U U U U U U U MW-203S 12/18/2018 U U U U U U U U U U U U U U U U U U U MW-2035 4/4/2019 U U U U U U U U U U U U U U U U U U U MW-2035 6/4/2019 U U U U U U U U U U U U U U U U U U MW-2035 9/3/2019 U U U U U U U U U U U U U U U U U U U MW-2035 3/12/2020 U U U U U U U U U U U U U U U U U U U MW-2035 9/1/2020 U U U U U U U U U U U U U U U U U U U MW-2035 3/17/2021 U U U U U U U U U U U U U U U U U U U MW-203S 9/21/2021 U U U U U I U I U 1 U U U U I U I U I U I U I U I U I U I U Page 8 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill w w 3Yw wv L w N w E o°. L w w p o M A o M O w O N w O LO o£ w O ` O C OO O. uOC ` ¢ oc c° o Cw C £ o o o uo G u'pW A VU N Cc mm U V -Idm In rl Narti ~oauC. O rl aw rcHl rcHl ` w u ° NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 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 MW-204S 3/23/2011 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 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 MW-204S 3/28/2012 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 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 MW-204S 3/13/2013 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 U U U U 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 MW-204S 3/25/2014 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 0.301 U U U U MW-204S 5/28/2015 U U U U 0.30J U U U U U U U 1.601 U U U U U U U U 0.901 U 0.301 U U U U MW-204S 9/30/2015 U U U U 0.60J U U U U U 0.40J U 3.301 U U U U U U U U 0.701 U 0.301 U U U U MW-204S 3/16/2016 U U U U U U U U U U U U 10.90JI U U I U U U U U U 0.401 U U U U U U MW-204S 9/29/2016 U U U U U U U U U U U U 1.501 U U U U U U U U 0.601 I U I U U U U U MW-204S 3/23/2017 U U U U U U U U U U U U 1.401 U U U U U U U U 1.001 U 0.301 U U U U MW-204S 9/29/2017 U U 0.70J U U U U U U U 2.201 U 0.601 U U U U U U 2.7 U 2.101 U 1.001 U 0.301 U U MW-204S 3/15/2018 U U U U U U U U U U U U 0.601 U U U U U U U U 1.401 U 0.301 U U U U MW-204S 9/25/2018 U U U U U U U U U U U U U U U U U U U U U 0.961 0.02J U U 0.081 U U MW-204S 4/5/2019 U U U U U U U I U U U U U U U U U U U U U U 0.441 U U U U U U MW-204S 9/5/2019 U U 0.33J U U U U U U U 1.1 U U U U U U U U 0.881 U 0.981 U 0.411 U U U U MW-204S 3/10/2020 U U 0.20J U U U U U U U I 0.671 I U I U U U U U U U I 0.741 U 0.861 U U U U U U MW-204S 9/1/2020 U U 0.92J U U U U U U U 3.5 U U I U U U U U 10.42JI 3.7 1 U MW-204S 3/17/2021 U U U U U U U U U U U U U U U U U U U U U 0.531 U U U U U U MW-2045 9/21/2021 U U 0.69J U U U U U U U 3.0 U U U U U U U 0.36J 2.8 U 1.4 U 0.78J U U U U Page 9 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O. O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6(1) 3 2000 0.005 88 (I) 0.03 500 MW-204S 9/22/2009 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 U U U U U U 0.6 U U U U U U U U U MW-204S 3/22/2010 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 U U U U U U 0.9 U U U U U U U 0.7 U MW-204S 3/23/2011 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 U U U U U U 1 0.8 U U U 0.4 U U U 0.9 U MW-204S 3/28/2012 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 0.6 U U U U U U U U U MW-204S 3/13/2013 U U U U U U U U 0.4 U U U U U U U U U MW-204S 9/25/2013 U U U U U U U U U U U U U U U U U U MW-204S 3/25/2014 U U U U U U U U 0.501 U U U U U U U U U MW-204S 5/28/2015 U U U U U U U U 0.40J U U U U U U U U U MW-204S 9/30/2015 U U U U U U U U 0.501 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 U U U U U U MW-204S 9/29/2016 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 0.60J U U U U U U U U U MW-204S 9/29/2017 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 0.60J U U U U U U U U U MW-204S 9/25/2018 U U U U U U U U U 0.62 U U U U U U U U U MW-204S 4/5/2019 U U U U U U U U U 0.23J U U U U U U U U U MW-204S 9/5/2019 6.6 U U U U U U U U 0.36J U U U U U U U U U MW-204S 3/10/2020 4.0 U U U U U U U U 0.49J U U U U U U U U U MW-204S 9/1/2020 8.8 U U U U U U U U 0.31J U U U U U U U 0.52) U MW-204S 3/17/2021 1.91 U U U U U U U U 0.40J U U U U U U U U U MW-204S 9/21/2021 8.1 U U U U U U U U U U U U U U U U U U Page 10 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3Yw wv O. uOC ` ¢ w L O Cc w O N N oc c° mm w w U o VU E O Cw C V o°. LO £ rl o£ aw N -Idm L w o In rcHl w o w o rcHl w o uo p w M O rl A ` O o M G Narti C u'pW w O ~oauC. OO A NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 MW-205S 9/21/2010 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 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 MW-205S 9/26/2011 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 MW-205S 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 MW-205S 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 MW-205S 12/27/2012 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 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 MW-205S 6/26/2013 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 MW-205S 9/25/2013 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 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 MW-205S 3/25/2014 U U 1.50 U U U U U U U 4.50 1.301 U U U U U U 11.20J 8.10 U 0.60J U U U U U U MW-205S 6/26/2014 U U 1.30 U U U U U U U 4.20 1.201 U U U U U U 1.201 8.401 U 0.60J 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 MW-205S 9/30/2015 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 MW-205S 12/10/2015 U U U U U U U U U U 0.501 U U U U U U U U 1.40 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 1.20J 9.10 U 0.70J U U U U U U MW-205S 6/22/2016 U U 0.30J U U U U U U U 1.201 U 0.30J U U U U U 0.40J 3.00 U U U U U U U U MW-205S 9/29/2016 U U U U U U U U U U 0.30J U U U U U U U U 1.10 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 MW-205S 3/23/2017 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 MW-205S 6/27/2017 U U U U U U U U U U 0.50J U U U U U U U U 1.2 U U U U U U U U MW-205S 9/29/2017 U U U U U U U U U U 0.50J U U U U U U U U 1.30 U U U U U U U U MW-205S 12/20/2017 U U U U U U U U U U U U U U U U U U U 0.401 U U U U U U U U MW-205S 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 MW-205S 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 MW-205S 9/25/2018 U U U U U U UU U U U U U U U U U U 0.521 U U 0.03J U U U U U MW-205S 12/18/2018 U U U U U U UU U 1.221 U U U U U U U U 1.53 U U 0.07J U U 0.051 U U MW-205S 4/5/2019 U U 0.23J U U U UU ru U 1.4 U U U U U U U 0.271 1.8 U 0.161 U U U U U U MW-205S 6/4/2019 U U U U U U UU U 1.1 U U U U U U U 0.22J 1.5 U U U U U U U U MW-205S 9/4/2019 U U 0.22J U U U UU U 1.0 U U U U U U U 0.20J 1.4 U U U U U U U U MW-205S 3/10/2020 U U U U U U UU U 0.581 U U U U U U U U 0.921 U U U U U U U U MW-205S 9/2/2020 6.6J U 0.20J U I U U I U U U U 0.66J U U U U U U U U 1.1 U 0.19J U U U U U U MW-205S 3/17/2021 3.31 U 0.40J U U U U U U U ... 0.46J U U U U U U 0.421 3.2 U 0.261 U U 0.281 U U U MW-205S 9/21/2021 U U 0.24J U U U U U U U 0.841 U U U U U U U U 1 1.4 U U U U U U U U Page 11 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 00 L V r O O C y O O y L O O- O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-205S 9/22/2009 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 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 MW-205S 9/21/2010 U U U U 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 MW-2055 9/26/2011 U U U U U U U U U U U U U U U U U U MW-205S 3/28/2012 U U U U U U U U U U U U U U U U U U MW-205S 9/19/2012 U U U U U U U U U U U U U U U U U U MW-205S 12/27/2012 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 MW-205S 6/26/2013 U U U U U U U U U 0.81 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 U MW-205S 12/31/2013 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 U U U U U U U U U U U U U U U U MW-205S 6/26/2014 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 U U U U U U U U U U U U U U U U MW-205S 9/30/2015 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 U U U U U U U U U U MW-205S 3/16/2016 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 U U U U U U U U U U U U U U U U MW-205S 9/29/2016 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 U U U U U U U U MW-205S 3/23/2017 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 U U U U U U U U MW-205S 9/29/2017 U U U U U U U U 0.50J U U U U U U U U U MW-205S 12/20/2017 U U U U U U U U U U U U U U U U U U MW-205S 3/15/2018 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 U U U U U U U U MW-205S 9/25/2018 16.30 U U U U U U U U U U U U U U U U U U MW-205S 12/18/2018 12.50 U U U U U U U U 0.26 U U U U U U U U U MW-205S 4/5/2019 10 U U U U U U U U U U U U U U U U U U MW-205S 6/4/2019 U U U U U U U U U U U U U U U U U U MW-205S 9/4/2019 25 U U U U U U U U U 2.4 U U U U U U U U MW-205S 3/10/2020 23 U U U U U U U U U U U U U U U U U U MW-205S 9/2/2020 18 U U U U U U U U U U U U U U U U U U MW-205S 3/17/2021 10 U U U U U U U U U U U U U U U U U U MW-205S 9/21/2021 20 U U U U U U U U U 1.8 U U U U U U U U Page 12 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3Yw wv O. uOC ` ¢ w L O Cc w O N N oc c° mm w w U o VU E O Cw C V o°. LO £ rl o£ aw N -Idm L w o In rcHl w o w o rcHl w o uo p ` w M O rl A ` O o M G Narti C u'pW u w O ~oauC. OO A ° NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 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 MW-205D 3/23/2011 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 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 MW-205D 3/28/2012 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 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 MW-205D 12/27/2012 U U 0.401 U U U U U U U 1.801 U U U U U U U U 3.40 U 2.101 0.4 5.30 0.301 0.401 U 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 MW-205D 6/26/2013 U U 0.4J U U U U U U U 1.71 U U U U U U U U 3.2 U 2.1 U 5.9 0.31 0.31 U U MW-205D 9/25/2013 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 MW-205D 12/31/2013 U U 0.4 U U 0.4J U U U U 1.81 U U U U U U U U 3.3 U 2.2J U 6.1 U 0.41 U 0.41 MW-205D 3/25/2014 U U 0.401 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 0.40JI U I U U MW-205D 6/26/2014 15.10J U U U U 0.701 U U U U 1.60J U I U U U U U U U 3.00 U 2.101 I U I U U 0.301 U U MW-205D 5/28/2015 U U 0.301 U U I U U U U U 1.20J U U U U U U U U 2.50 U 1.501 U 2.701 U 0.301 U U MW-205D 9/30/2015 U U 0.401 U U U U U U U 1.70J U U U U U U U 0.401 3.60 U 2.001 U 4.501 0.301 0.401 U U MW-205D 12/10/2015 U U 0.401 U U U U U U U 1.901 U U U U U I U U 10.40JI 3.70 U 2.301 0.30J 5.90 0.401 0.401 U U MW-205D 3/16/2016 U U 0.301 U U U U U U U 1.101 U U U U U U U U U U 1.501 U 3.201 U 0.301 U I U MW-205D 6/22/2016 12.00J I U 0.401 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 0.301 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 0.601 U 0.601 U U I U U MW-205D 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 I U I 0.301 U U U U MW-205D 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 MW-205D 6/27/2017 U U U U U U U U U U 0.60J U U U U U U U U 1.2 U 0.701 U 1.6 U U U U MW-205D 9/29/2017 U U 0.301 U U U U U U U 1.20J U U U U U I U U U 2.0 U 1.401 U 3.201 U 0.301 U U MW-205D 12/20/2017 U U 0.301 U U U U U U U 2.00J U U U U U U U U 3.40 U 2.101 U 4.801 0.301 U U U MW-205D 3/15/2018 U U 0.301 U U I U U U I U U 1.50J U I U U U U U U U 2.60 U 1.601 U 4.001 U U U 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 4.001 U U U U MW-205D 9/25/2018 U U U U U U U U U U 0.68J U U U U U U U U 1 1.581 U 1.061 I 0.15J I 2.141 U 1 0.20 1 U U MW-205D 12/18/2018 U U 0.33J U U U U U U U 1.93J U U U U U U U U 3.36 U 1.70J 0.18J 4.00J U 0.28 U U MW-205D 4/5/2019 U U 0.391 U U U U U U U 2.6 U U U U U U U 0.301 3.5 U 1.6 U 4.1J 0.401 0.301 U U MW-205D 6/4/2019 5.2J U 0.371 U U U U U U U 2.0 U U U U I U I U U 0.271 2.6 U 1.8 U 3.8 U 0.241 U U MW-205D 9/4/2019 5.9J U 0.431 U U U U U U U 2.2 U U U U U U U 0.381 3.3 U 1.8 U 3.4 U 0.281 U I U MW-205D 3/10/2020 5.2J U 0.421 U U U U I U I U I U 2.5 U U U U U U U 0.311 3.6 U 1.5 U 3.6 U U U MW-205D 9/2/2020 U U 0.331 U U U U U U U 1.9 U U U U U U U 0.281 2.9 U 1.5 U 3.7 0.381 U U MW-205D 3/17/2021 4.1J U 0.361 U U U U U U U 2.0 U U U U U U U 0.271 2.5 U 1.6 U 4.0 0.441 0.251 UMW-205D d 9/21/2021 U U 0.42J U U U U U U U 2.0U U U U U U U 0.22J 2.7 U 1.8 U 3.4 U U U Page 13 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 00 L V r O O C y O O y L O O- O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6(1) 3 2000 0.005 88 (I) 0.03 500 MW-205D 9/22/2009 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 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 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 U U U U U U 0.3 U U U 1.3 U U U 2.0 U MW-205D 3/23/2011 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 U U U U U U 0.4 U U U 1.2 U U U 1.7 U MW-205D 3/28/2012 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 0.2 U U U 1.1 U U U 1.6 U MW-205D 12/27/2012 U U U U U U U U U U U U 1.10 U U U 1.10 U MW-205D 3/13/2013 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 U U U U U U U U U U 1.1 U U U 1.5 U MW-205D 9/25/2013 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 U U U U U U U U U U 1.0 U U U 1.5 U MW-205D 3/25/2014 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 U U U U U U U U U U U U U U U U U U MW-205D 5/28/2015 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 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 U U U U U U 0.30J U U U 0.90J U U U 1.00 U MW-205D 3/16/2016 U U U U U U U U U U U U U U U U U U MW-205D 6/22/2016 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 U U U U U U U U MW-205D 12/21/2016 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 U U U MW-205D 6/27/2017 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 U U U U U U U U U U 0.50J U U U 0.701 U MW-205D 12/20/2017 U U U U U U U U U U U U 0.801 U U U 0.80J U MW-205D 3/15/2018 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 U U 0.70J U U U U U MW-205D 9/25/2018 10.70 U U U U U U U U 0.14J U U U 0.37J U U U 0.16J U MW-205D 12/18/2018 11.10 U U U U U U U U U U U U 0.75J U U U U U MW-205D 4/5/2019 10 U U U U U U U U 0.26J U U U 0.84J U U U 0.76J U MW-205D 6/4/2019 U U U U U U U U U U U U 0.66J U U U 0.46J U MW-205D 9/4/2019 19 U U U U U U U U 0.18J U U U 0.56J U U U U U MW-205D 3/10/2020 17 U U U U U U U U 0.21J U U U 0.75J U U U 0.45J U MW-205D 9/2/2020 16 U U U U U U U U 0.27J U U U 0.75J U U U 0.59J U MW-205D 3/17/2021 14 U U U U U U U U 0.26J U U U 0.66J U U U 0.94J U MW-205D 9/21/2021 11 U U U U U U U U U U I U I U 10.25J I U I U U 0.61J U Page 14 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill 3Yw wv O. uOC ` ¢ w L O Cc w O N N oc c° mm w w U o VU E O Cw C V o°. LO £ rl o£ aw N -Idm L w o In rcHl w o w o rcHl w o uo p ` w M O rl A ` O o M G Narti C u'pW u w O ~oauC. OO A ° NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 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 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 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 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 MW-206D 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 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 MW-206D 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 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 MW-206D 12/27/2012 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 MW-206D 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 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 MW-206D 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 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 MW-206D 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 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 MW-206D 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 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 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 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 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 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 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 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 MW-206D 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 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 MW-206D 12/20/2017 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 MW-206D 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 MW-206D 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 MW-206D 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 MW-206D 12/18/2018 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 MW-206D 4/5/2019 U U U U U 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 6/4/2019 U U U 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 9/4/2019 U U U 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 3/10/2020 U U U 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 9/2/2020 U U U U U U U U U U U lu U MW-206D 3/17/2021 U U U U U U U U U U U U MW-206D 9/21/2021 U U UU U U U U U U U U U U U U U U Page 15 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O- O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (I) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6 (I) 3 2000 0.005 88 (I) 0.03 500 MW-206D 9/22/2009 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 MW-206D 3/22/2010 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 MW-206D 3/23/2011 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 MW-206D 3/28/2012 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 MW-206D 12/27/2012 U U U U U U U U U U U U U U U U U U MW-206D 3/13/2013 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 MW-206D 9/25/2013 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 MW-206D 3/25/2014 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 MW-206D 5/28/2015 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 MW-206D 12/10/2015 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 MW-206D 6/22/2016 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 MW-206D 12/21/2016 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 MW-206D 6/27/2017 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 MW-206D 12/20/2017 U U U U U U U U U U U U U U U U U U MW-206D 3/15/2018 U U U U U U U U U U U U U U U U U U MW-206D 6/6/2018 U U U U U U U U U U U U U U U U U U MW-206D 9/25/2018 U U U U U U U U U U U U U U U U U U U MW-206D 12/18/2018 U U U U U U U U U U U U U U U U U U U MW-206D 4/5/2019 U U U U U U U U U U U U U U U U U U U MW-206D 6/4/2019 U U U U U U U U U U U U U U U U U U MW-206D 9/4/2019 U U U U U U U U U U U U U U U U U U U MW-206D 3/10/2020 U U U U U U U U U U U U U U U U U U U MW-206D 9/2/2020 U U U U U U U U U U U U U U U U U U U MW-206D 3/17/2021 U 0.121 U U U U U U U U 0.501 U U U U U U U 0.841 MW-206D 9/21/2021 U U U U U U U U U U U U U U U U U U U Page 16 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill w w 3Yw wv L w N w E o°. L w w o M A w o M O w O N w O LO o£ w O ` O C OO O. uOC ` ¢ oc c° o Cw C £ o o o uo G u'pW A m V NE C U V O -Idm In NrcHl VrcHl Np rrwll NrwOl Narti ~oauC. O rl aw Y .a-uI NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 MW-207S 2/10/2012 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 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 MW-207S 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 4.0 U U U U MW-207S 12/27/2012 U U U U U U U U U U U U U U U U U U U U U 0.801 U 4.201 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 MW-207S 6/27/2013 U U U U U U U U U U U U U U U U U U U U U 0.6J U 2.1 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 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 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 0.301 U 0.701 U U U U MW-207S 6/26/2014 U U U U U U U U U U U U U U U U U U U U U 0.401 U 1.401 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 0.301 U 0.801 U U U U MW-207S 9/30/2015 U U U U U U U U U U U U U U U U U U U U U 0.301 U 0.901 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 0.601 U U U U MW-207S 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 0.701 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 0.601 U U U U MW-207S 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 0.601 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 0.701 U U U U MW-207S 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 0.701 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 0.401 U U U U MW-207S 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 0.601 U U U U MW-207S 12/20/2017 U U U U U U U U U U U U U U U U U U U U U U U 0.701 U U U U MW-207S 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 0.601 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 0.501 U U U U MW-207S 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 MW-207S 12/18/2018 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 MW-207S 4/4/2019 U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-207S 6/4/2019 U U U U U U U U U U U U U U U U U U U U U U U 0.191 U U U U MW-207S 9/5/2019 U U U U U U U U U U U U U U U U U U U 0.241 U U U 0.191 U U U U MW-207S 3/12/2020 U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-207S 9/2/2020 4.6J U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-207S 3/17/2021 U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-207S 9/23/2021 1 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 I U Page 17 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O. O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (1) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6 (1) 3 2000 0.005 88 (I) 0.03 500 MW-207S 2/10/2012 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 1.6 U U U 2.8 U U U U U MW-207S 9/19/2012 U U U U U U U U 1.5 U U U 2.7 U U U U U MW-207S 12/27/2012 U U U U U U U U 1.50 U U U 2.80 U U U U U MW-207S 3/13/2013 U U U U U U U U U U U U 0.6 U U U U U MW-207S 6/27/2013 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 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 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 0.60J U U U 0.801 U U U U U MW-207S 6/26/2014 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 0.40J U U U 0.70J U U U U U MW-207S 9/30/2015 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 0.20J U U U 0.40J U U U U U MW-207S 3/16/2016 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 0.30J U U U 0.50J U U U U U MW-207S 9/29/2016 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 0.30J U U U 0.50J U U U U U MW-207S 3/23/2017 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 0.20J U U U 0.401 U U U U U MW-207S 9/29/2017 U U U U U U U U 0.20J U U U 0.50J U U U U U MW-207S 12/20/2017 U U U U U U U U U U U U 0.40J U U U U U MW-207S 3/15/2018 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 0.40J U U U U U MW-207S 9/25/2018 U U U U U U U U U 0.191 U U U U U U U U U MW-207S 12/18/2018 U U U U U U U U U U U U U U U U U U U MW-207S 4/4/2019 U U U U U U U U U U U U U U U U U U U MW-207S 6/4/2019 U U U U U U U U U U U U U U U U U U MW-207S 9/5/2019 U U U U U U U U U U U U U U U U U U U MW-207S 3/12/2020 U U U U U U U U U U U U U U U U U U U MW-2075 9/2/2020 U U U U U U U U U U U U U U U U U U U MW-2075 3/17/2021 U U U U U U U U U U U U U U U U U U U MW-207S 9/23/2021 U U U U U U U U U U U U U U U U U U U Page 18 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill w w 3w w L w N w E o°. w L cH cH p w M w A w o r M w pW oa- O Y v w O N w O LO o£ w O ` O C OO O. uOC ` ¢ oc c° o Cw C £ o o o uo G A uC m V NE C U V O -Idm In Nrwl Vrwl No rrll NrOl Nati O rl a w .a-uI NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 MW-207D 2/10/2012 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 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 MW-207D 9/19/2012 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 MW-207D 12/27/2012 U U U U U U U U U U U U U U U U U U U U U 0.301 U 0.901 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 MW-207D 6/27/2013 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 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 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 MW-207D 3/25/2014 U U U U U U U U U U U U U U U U U U U U U 0.401 U 1.701 U U U U MW-207D 6/26/2014 U U U U U U U U U U U U U U U U U U U U U 0.601 U 2.701 U U U U MW-207D 5/28/2015 U U U U U U U U U U U U U U U U U U U U U 0.401 U 1.601 U U U U MW-207D 9/30/2015 U U U U U U U U U U U U U U U U U U U U U 0.601 U 2.001 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 0.701 U 2.601 U U U U MW-207D 3/16/2016 U U U U U U U U U U U U U U U U U U U U U 0.401 U 1.901 U U U U MW-207D 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 0.501 U 2.301 U U U U MW-207D 9/29/2016 U U U U U U U U U U U U U U U U U U U U U 0.601 U 3.001 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 0.401 U U U U MW-207D 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 0.501 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 0.501 U 1.801 U U U U MW-207D 9/29/2017 U U U U U U U U U U U U U U U U U U U U U 0.701 U 2.001 U U U U MW-207D 12/20/2017 U U U U U U U U U U U U U U U U U U U U U 0.701 U 1.101 U U U 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 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 0.701 U 0.501 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 0.701 0.03J 0.451 U 0.101 U U MW-207D 12/18/2018 U U U U U U U U U U U U U U U U U U U U U 0.86J U 0.37J U 0.10J U U MW-207D 4/4/2019 U U 0.32J U U U U U U U 0.16J U U U U U U U U 0.411 U 1.1 U U U U U U MW-207D 6/4/2019 U U U U U U U U U U U U U U U U U U U U U 0.451 U 0.281 U U U U MW-207D 9/5/2019 U U U U U U U U U U U U U U U U U U U 0.141 U 0.651 U 0.401 U U U U MW-207D 3/12/2020 4.1J U U U U U U U U U U U U U U U U U U U ULO.2 U U U U U U MW-207D 9/2/2020 U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-207D 3/17/2021 U U U U U U U U U U U U U U U U U U U U U U 0.671 U U U U MW-207D 9/23/2021 U U U 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 19 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O. O y O « y0i ' C L 0 X W E C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (1) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6 (1) 3 2000 0.005 88 (I) 0.03 500 MW-207D 2/10/2012 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 U U U U U U 0.5 U U U 0.7 U U U U U MW-207D 9/19/2012 U U U U U U U U 0.4 U U U 0.5 U U U U U MW-207D 12/27/2012 U U U U U U U U 0.40J U U U 0.60J U U U U U MW-207D 3/13/2013 U U U U U U U U 0.5 U U U 0.6 U U U U U MW-207D 6/27/2013 U U U U U U U U 0.5J U U U 0.71 U U U U U MW-207D 9/25/2013 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 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 0.50J U U U 1.00 U U U U U MW-207D 6/26/2014 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 U U U U U 0.40J U U U 0.801 U U U U U MW-207D 9/30/2015 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 0.70J U U U 1.20 U U U U U MW-207D 3/16/2016 U U U U U U U U 0.20J U U U 0.90J U U U U U MW-207D 6/22/2016 U U U U U U U U 0.60J U U U 1.00 U U U U U MW-207D 9/29/2016 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 0.30J U U U U U MW-207D 3/23/2017 U U U U U U U U U U U U 0.30J U U U U U MW-207D 6/27/2017 U U U U U U U U 0.301 U U U 1.0 U U U U U MW-207D 9/29/2017 U U U U U U U U U U U U 1.401 U U U 1.00 U MW-207D 12/20/2017 U U U U U U U U U U U U 0.70J U U U 0.801 U MW-207D 3/15/2018 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 MW-207D 9/25/2018 U U U U U U U U U U U U U U U U U U U MW-207D 12/18/2018 U U U U U U U U U U U U U U U U U U U MW-207D 4/4/2019 U U U U U U U U U U U U U U U U U 0.931 U MW-207D 6/4/2019 U U U U U U U U U U U U U U U U U U MW-207D 9/5/2019 U U U U U U U U U U U U U U U U U U U MW-207D 3/12/2020 U U U U U U U U U U U U U U U U U U U MW-207D 9/2/2020ru U U U U U U U U U U U U U U U U U U MW-207D 3/17/2021 U U U 0.311 U U U U U U U U 0.23J U U U U U MW-207D 9/23/2021 U U U U U U U U U U U U U U U U U U Page 20 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill w w 3Yw wv L w N w E o°. L w w p o M A o M O w O N w O LO o£ w O ` O C OO O. uOC ` ¢ oc c° o Cw C £ o o o uo G u'pW A VU N Cc mm U V -Idm In rl Narti ~oauC. O rl aw rcHl rcHl Y NC 2L Standard * 6000 NE 1 NE 0.6 4 10 (1) 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 MW-208S 2/10/2012 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 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 MW-208S 9/19/2012 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 MW-208S 12/27/2012 U U U U U U U U U U 2.30J 0.901 U U U U U U 0.801 6.30 U 1.701 U 0.301 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 MW-208S 6/27/2013 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 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 MW-208S 12/31/2013 U U U U U U U U U U 2.31 U U U U U U U 0.8J 5.8 U 1.4J U 0.301 U U U U MW-208S 3/25/2014 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 MW-208S 6/26/2014 U U U U U U U U U U 0.601 U U U U U U U U 1.70 U U 0.60J U U U U U MW-208S 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 MW-208S 9/30/2015 U U U U U U U U U U 2.401 U U U U U U U 0.701 4.9 U 1.001 U U U U U U MW-208S 12/10/2015 U U U U U U U U U U U U U U U U U U U U U 0.301 U U U U U U MW-208S 3/16/2016 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 MW-208S 6/22/2016 U U U U U U U U U U 1.501 U 0.40J U U U U U 0.401 3.00 U 0.801 U U U U U U MW-208S 9/29/2016 U U U U U U U U U U 2.001 U U U U U U U 0.50J 3.90 U 0.80J 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 MW-208S 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 MW-208S 6/27/2017 U U U U U U U U U U 1.101 U U U U U U U U 2.2 U 0.501 U U U U U U MW-208S 9/29/2017 U U U U U U U U U U 2.101 U U U U U U U 0.60J 4.10 U 0.60J U U U U U U MW-208S 12/20/2017 U U U U U U U U U U 1.901 U U U U U U U 0.601 3.90 U 0.601 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 0.501 U 0.201 U U U U U U MW-208S 6/6/2018 U U U U U U U U U U 1.00J U U U U U U U U 2.60 U 0.501 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 0.261 0.02J U U U U U MW-208S 12/18/2018 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 MW-208S 4/4/2019 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 U MW-208S 6/4/2019 U U U U U U U U U U 2.1 U U U U U U U 0.571 4.0 U 0.661 U 0.281 U U U U MW-208S 9/5/2019 U U U U U U U U U U 2.3 0.461 U U U U U U 0.661 4.4 U 0.731 U 0.151 U U U U MW-208S 3/12/2020 U U U U U 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 9/2/2020 4.71 U U U U U U U U U U U U 0.52J U U U U U 0.211 U U U U U U U U MW-208S 3/17/2021 U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-2085 9/23/2021 U U U U U U U U U U 2.4 U U U U U U U 0.49J 4.5 U 0.70J U 0.34J U U U U Page 21 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O. O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (1) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6 (1) 3 2000 0.005 88 (I) 0.03 500 MW-208S 2/10/2012 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 0.3 U U U U U U U U U U U U MW-208S 9/19/2012 U U U U U U U U U U U U U U U U U U MW-208S 12/27/2012 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 U U U U U U U U MW-208S 6/27/2013 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 U U U U U U U U MW-208S 12/31/2013 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 MW-208S 6/26/2014 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 U U U U U U U U U U MW-208S 9/30/2015 U U U U U U U U U U U U U U U U U U MW-208S 12/10/2015 U U U U U U U U U U U U U U U U U U MW-208S 3/16/2016 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 U U U U U U U U MW-208S 9/29/2016 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 MW-208S 3/23/2017 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 U U U U U U U U MW-208S 9/29/2017 U U U U U U U U U U U U U U U U U U MW-208S 12/20/2017 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 MW-208S 6/6/2018 U U U U U U U U U U U U U U U U U U MW-208S 9/25/2018 4.25 U U U U U U U U U U U U U U U U U U MW-208S 12/18/2018 U U U U U U U U U U U U U U U U U U U MW-208S 4/4/2019 U U U U U U U U U U U U U U U U U U U MW-2085 6/4/2019 U U U U U U U U U 0.15J U U U U U U U U MW-2085 9/5/2019 13 U U U U U U U U U U U U U U U U U U MW-2085 3/12/2020 6.2 U U U U U U U U U U U U U U U U U U MW-2085 9/2/2020 4.8 U U U U U U U U U U U U U U U U U U MW-2085 3/17/2021 U U U U U U U U U U U U U U U U U U U MW-208S 9/23/2021 11 U U U U U U U U U U U U U U U U U U Page 22 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill w w 3Yw wv L w N w E o°. L w w o M A w o M O w O N w O LO o£ w O ` O C OO O. uOC ` ¢ oc c° o Cw C £ o o o uo G u'pW A m V NE C U V O -Idm In NrcHl VrcHl Np rrwll NrwOl Narti ~oauC. O rl aw Y .a-uI NC 2LStandard * 6000 NE 1 NE 0.6 4 10 (1) 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 MW-208D 2/10/2012 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 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 MW-208D 9/19/2012 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 MW-208D 12/27/2012 U U U U U U U U U U U U U U U U U U U U U 0.301 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 MW-208D 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 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 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 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 MW-208D 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 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 MW-208D 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 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 MW-208D 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 MW-208D 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 MW-208D 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 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 MW-208D 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 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 MW-208D 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 MW-208D 12/20/2017 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 MW-208D 4/11/2018 U U U U U U U 2.501 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 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 U U U U MW-208D 12/18/2018 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 MW-208D 4/5/2019 U U U U U 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 6/4/2019 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 MW-208D 9/5/2019 U U U U U 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 3/12/2020 U U U U U 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 9/2/2020 4.61 U U U U 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 3/17/2021 U U U U U 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 9/23/2021 U U U U 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 23 of 24 Table 5 Historical Corrective Action Monitoring Results - Volatile Organic Compounds Wilders Grove Landfill v 'O O M L M S 41 v C f0 v C f0 (p L 3 O N H 0p L V r O O C y O O y L O O- O y O « y0i ' CL 0 X W C N N w fu`0 i O L 3 L L O 7 t Q V W r1 W N O t OJ N N O f > T y N N u Ili N X NC 2L Standard * 3 600 40 (1) NE 5 100 (I) 70 1 (1) 0.2 0.7 600 200 0.6 (1) 3 2000 0.005 88 (I) 0.03 500 MW-208D 2/10/2012 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 MW-208D 9/19/2012 U U U U U U U U U U U U U U U U U U MW-208D 12/27/2012 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 MW-208D 6/27/2013 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 MW-208D 12/31/2013 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 MW-208D 6/26/2014 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 MW-208D 9/30/2015 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 MW-208D 3/16/2016 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 U U U U U U MW-208D 9/29/2016 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 0.251 U U U U U U MW-208D 3/23/2017 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 MW-208D 9/29/2017 U U U U U U U U U U U U U U U U U U MW-208D 12/20/2017 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 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 MW-208D 9/25/2018 4.80 U U U U U U U U U U U U U U U U U U MW-208D 12/18/2018 U U U U U U U U U U U U U U U U U U U MW-208D 4/5/2019 U U U U U U U U U U 0.16J U U U U U U U U MW-208D 6/4/2019 U U U U U U U U U U U U U U U U U U MW-208D 9/5/2019 U U U U U U U U U U U U U U U U U U U MW-208D 3/12/2020 U U U U U U U U U U U U U U U U U U MW-208D 9/2/2020 U U U U U U U U U U U U U U U U U U MW-208D 3/17/2021 U U U U U U U U LU U U U U U U U U U U MW-208D 9/23/2021 U U U U U U U U U U U U U U U U U U Page 24 of 24 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-201 S 9/19/2012 52.0 J 0.04 J 0.26 J 0.02 J MW-201 S 3/13/2013 46.5 J 0.03 J 0.22 J U MW-201 S 9/25/2013 73.0 J 0.05 J 0.19 J U MW-201 S 3/26/2014 55.9 J U 0.24 J U MW-201 S 5/28/2015 65.6 J 0.37 J 0.27 J U MW-201 S 9/30/2015 59.8 J 0.12 J 0.20 J U MW-201 S 3/16/2016 69.0 J 0.18 J 0.32 J U MW-201 S 9/29/2016 48.7 J 0.07 J 0.30 J U MW-201 S 3/23/2017 71.4 J 0.70 J 0.32 J U MW-201 S 9/29/2017 60.1 J U 0.98 J 0.19 J MW-201 S 3/15/2018 65.4 J 0.10 J U U MW-201 S 9/25/2018 68.0 0.03 J 0.38 J U MW-201 S 4/4/2019 U 0.41 88 0.10 J U U 0.89 J 4.4 J 0.41 J U U U 0.063 J U U MW-201 S 9/3/2019 U U 69 U 0.048 J 0.99 J 0.41 J 1.1 U U U U 0.073 J U U MW-201S 3/11/2020 U U 97 0.099 J U 1.3 0.36 J 1.3 U 1.9 J U U 0.075 J U U MW-201S 9/1/2020 U U 75 U U 1.1 0.29 J U U U U U 0.063 J U U MW-201 S 3/17/2021 U U 66 U U U 0.18 J U U U U U 0.050 J U U MW-201S 9/21/2021 U U 67 U 0.036 J U 0.30 J 0.78 J U 0.61 J U U U U U Page 1 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-202D 9/19/2012 U 46.2 J 0.10 J U 0.07 J 0.13 J 0.36 U U MW-202D 12/27/2012 U 99.4 J 0.10 J 8.4 J 0.13 J 0.09 J 0.37 U 0.28 J MW-202D 3/13/2013 U 61.8 J 0.25 J 14 0.08 J 0.28 J 0.10 J U U MW-202D 6/26/2013 0.20 J 80.5 J 0.14 J 9.2 J 0.08 J U 0.19 J U U MW-202D 9/25/2013 0.15 J 65.6 J U 12 0.07 J 0.51 J 0.07 J 0.27 J U MW-202D 12/31/2013 0.11 J 61.2 J U 12 0.05 J 0.47 J 0.18 J 0.30 J 0.04 J MW-202D 3/26/2014 0.23 J 61.1 J 0.10 J 7.5 J 0.07 J 0.08 J 0.65 0.08 J U MW-202D 6/26/2014 U 119 0.16 J 6.0 J U U 0.27 U 0.12 J MW-202D 5/28/2015 U 89.5 J 0.39 J 11 0.12 J 1.7 J 0.63 U 0.06 J MW-202D 9/30/2015 U 72.6 J 0.11 J 11 0.12 J 0.45 J 0.20 U U MW-202D 12/10/2015 0.17 J 69.0 J 0.08 J 7.6 J 0.14 J 0.52 J 0.84 U U MW-202D 3/16/2016 U 70.6 J 0.05 J 8.0 J U 0.06 J 0.18 J U U MW-202D 6/22/2016 U 109 U 7.9 J U U 0.24 U 7.5 J MW-202D 9/29/2016 U 92.1 J 0.05 J 9.6 J 0.06 J 0.22 J 0.19 J U U MW-202D 12/21/2016 U 101 U 10 U U 0.08 J U U MW-202D 3/23/2017 U 84.6 J 0.60 J 9.2 J 0.13 J 0.88 J 0.23 U U MW-202D 6/27/2017 0.10 J 94.6 J 0.28 J 7.7 J U 0.09 J 1.09 U U MW-202D 9/29/2017 U 74.8 J 0.17 J 5.8 J U 0.16 J 0.68 U U MW-202D 12/20/2017 U 132 0.09 J 8.9 J U 0.13 J 0.42 U U MW-202D 3/15/2018 U 89.7 J 0.43 J 8.9 J U U 0.33 U U MW-202D 6/6/2018 0.12 J 143 0.45 J 9.5 J 0.11 J 0.11 J 0.26 U U MW-202D 9/25/2018 0.04 J 107 0.17 J 12 0.10 J 0.27 J 0.07 J 0.51 J U MW-202D 12/18/2018 0.40 J 92.5 0.04 J 7.8 0.07 J 0.30 J U 0.18 J U MW-202D 4/3/2019 U U 95 0.11 J U 8.6 U U U U U U U U U MW-202D 6/5/2019 U U 96 0.097 J U 9.0 U 1.6 J 0.16 J 0.66 J U U U U 4.1 J MW-202D 9/3/2019 U U 93 U U 11 U 1.3 U 0.65 J U U U 3.6 J 3.0 J MW-202D 3/11/2020 U U 97 U U 9.6 U 1.4 0.11 J 1.4 J U U U U 4.1 J MW-202D 9/1/2020 U U 90 U U 7.6 U U U 1.4 J U U U U 2.6 J MW-202D 3/17/2021 U U 84 0.093 J U 5.4 U U U 1.7 J U U U U 4.0 J MW-202D 9/21/2021 U U 97 0.074 J U 6.5 U 0.80 J U 2.0 J 0.86 J U U U U Page 2 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-202S 9/19/2012 0.36 J 124 0.14 J U 24 0.43 J 0.04 J U U MW-202S 12/27/2012 0.50 J 114 0.21 J U 23 0.46 J 0.02 J 0.24 J 0.24 J MW-202S 3/13/2013 1.1 J 121 0.40 J 0.34 J 22 0.82 J U 0.34 J U MW-202S 6/26/2013 0.73 J 114 0.11 J U 25 0.35 J U 0.23 J U MW-202S 9/25/2013 0.60 J 119 0.06 J U 28 0.41 J U 0.36 J U MW-202S 12/31/2013 0.59 J 127 0.17 J U 25 0.30 J U 0.59 J 0.06 J MW-202S 3/26/2014 1.8 J 130 0.75 J 0.53 J 17 0.74 J U 0.33 J 0.03 J MW-202S 6/26/2014 1.5 J 124 0.62 J 0.23 J 18 0.85 J U U 0.15 J MW-202S 5/28/2015 0.72 J 157 0.07 J 0.90 J 10 2.7 J U 0.26 J 0.10 J MW-202S 9/30/2015 1.1 J 145 0.53 J 1.0 J 19 4.0 J U 0.48 J 0.02 J MW-202S 12/10/2015 1.1 J 1331 0.11 J U 15 1.0 J U 0.48 J 0.02 J MW-202S 3/16/2016 U 118 U 0.40 J 10 0.19 J U U U MW-202S 6/22/2016 U 102 U U 9.7 J 1.1 J U U 0.9 J MW-202S 9/29/2016 1.7 J 131 0.27 J 1.4 J 5.7 J 5.1 J 0.08 J U U MW-202S 12/21/2016 U 134 0.44 J 0.60 J 11 1.8 J U U U MW-202S 3/23/2017 2.2 J 315 0.95 J 5.4 J 12 31 0.19 J 1.4 J U MW-202S 6/27/2017 1.4 J 147 0.18 J U 24 1.3 J U U U MW-202S 9/29/2017 1.8 J 236 0.42 J 4.2 J 8.9 J 18 0.13 J 0.53 J U MW-202S 12/20/2017 0.86 J 131 0.36 J 1.5 J 14 4.7 J U 0.84 J U MW-202S 3/15/2018 1.2 J 154 0.25 J 1.2 J 19 3.7 J U U U MW-202S 6/6/2018 1.4 J 130 0.30 J 0.98 J 16 3.8 J 0.05 J 0.47 J U MW-202S 9/25/2018 1.2 J 122 0.51 J U 15 0.69 J U 0.34 J U MW-202S 12/18/2018 0.70 J 102 0.15 J U 12 0.50 J U 0.27 J U MW-202S 4/3/2019 U 1.1 89 0.46 U U 5.7 U U U U U U U 5.0 J MW-202S 6/5/2019 U U 76 0.42 U 1.2 3.8 1.3 J U 0.62 J U U U U 5.0 J MW-202S 9/3/2019 U U 76 0.48 U 1.3 3.2 1.4 U U U U U U 3.8 J MW-202S 3/11/2020 U U 87 0.38 J U U 5.2 U U 1.3 J U U U U 2.9 J MW-202S 9/1/2020 U 1.0 110 0.22 J U U 8.1 U 0.091 J 1.7 J U U U U 3.8 J MW-202S 3/17/2021 U 0.89 85 0.32 J U U 4.2 U U U 1 U 1 U U U 3.4 J MW-202S 9/21/2021 U U 99 0.64 0.042 J U 4.9 0.75 J U 1.1 J 1.2 J U U U 6.5 J Page 3 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-203S 9/19/2012 0.18 J 82.9 J 0.45 J U 1.8 J 0.71 J 0.12 J U U MW-203S 12/27/2012 0.26 J 78.5 J 0.18 J 1.2 J 1.6 J 1.6 J 0.05 J 0.29 J U MW-203S 3/13/2013 0.45 J 73.6 J 0.30 J 0.63 J 1.5 J 1.0 J U 0.24 J U MW-203S 6/26/2013 0.20 J 61.6 J 0.11 J U 0.93 J 0.23 J 0.02 J 0.25 J U MW-203S 9/25/2013 0.16 J 73.6 J 0.05 J U 0.95 J 0.20 J U 0.36 J U MW-203S 12/31/2013 0.57 J 85.3 J 0.09 J 1.6 J 1.6 J 3.0 J U 0.70 J U MW-203S 3/26/2014 0.35 J 70.4 J 0.08 J U 0.94 J 0.30 J U 0.20 J U MW-203S 6/26/2014 0.47 J 82.0 J 0.26 J 1.2 J 1.4 J 1.7 J U U 0.14 J MW-203S 5/28/2015 0.15 J 79.0 J 0.62 J 0.39 J 0.92 J 1.6 J U U 0.03 J MW-203S 9/30/2015 0.44 J 76.1 J 0.15 J 1.4 J 1.1 J 2.4 J U 0.24 J 0.03 J MW-203S 12/10/2015 0.39 J 70.5 J 0.28 J U 0.85 J 0.67 J U 0.31 J 0.02 J MW-203S 3/16/2016 U 67.5 J 0.10 J 1.2 J 0.84 J 0.44 J U U 0.06 J MW-203S 6/22/2016 U 75.0 J U U 0.81 J U U U 0.86 J MW-203S 9/29/2016 U 81.0 J 0.12 J 2.4 J 1.5 J 4.0 J U U U MW-203S 12/21/2016 U 64.3 J U 0.46 J 0.83 J 1.1 J U U U MW-203S 3/23/2017 U 66.8 J 2.0 0.85 J 0.86 J 2.1 J U U U MW-203S 6/27/2017 0.29 J 62.4 J 0.08 J U 0.68 J 0.49 J U U U MW-203S 9/29/2017 0.55 J 80.5 J 0.14 J 2.6 J 1.4 J 4.6 J U U U MW-203S 12/20/2017 0.45 J 80.8 J 0.94 J 2.4 J 1.5 J 4.5 J U U U MW-203S 3/15/2018 1.1 J 113 0.22 J 4.5 J 2.2 J 9.7 J U U U MW-203S 6/6/2018 0.42 J 73 J 0.62 J 1.1 J 1.1 J 2.9 J 0.05 J 0.20 J U MW-203S 9/25/2018 0.14 J 63.9 0.14 J 0.34 J 0.76 J 0.48 J U 0.15 J U MW-203S 12/18/2018 0.16 J 60.8 0.13 J U 0.72 J 0.39 J U 0.16 J U MW-203S 4/4/2019 U U 60 0.41 U U 0.64 J 1.1 J 0.41 J U U U U U U MW-203S 6/4/2019 U U 69 0.43 U 1.6 0.60 J U 0.33 J U U U 0.057 J U U MW-203S 9/3/2019 U U 70 0.45 0.042 J 1.1 0.61 J 1.2 0.20 J U U U 0.061 J U U MW-203S 3/12/2020 U U 72 0.48 0.039 J 1.2 0.65 J 1.1 0.15 J U U U 0.061 J U U MW-203S 9/1/2020 U U 71 0.50 0.040 J 1.4 0.66 J U 0.22 J U U U 0.062 J U U MW-203S 3/17/2021 U U 74 0.52 0.044 J 1.4 0.66 J U 0.17 J U U U 0.063 J U U MW-203S 9/21/2021 U U 91 0.50 0.040 J U 0.79 J 0.77 J U 0.76 J 1.1 J U U U U Page 4 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-204S 9/19/2012 161 0.19 J 0.52 J 0.17 J MW-204S 3/13/2013 184 0.23 J 0.64 J 0.05 J MW-204S 9/25/2013 153 0.05 J 0.39 J U MW-204S 3/26/2014 1442 1.0 0.57 J 0.14 J MW-204S 5/28/2015 191 0.24 J 0.57 J U MW-204S 9/30/2015 234 0.80 J 1.4 J 0.07 J MW-204S 3/16/2016 154 0.28 J 0.48 J U MW-204S 9/29/2016 222 1.0 1.3 J 0.15 J MW-204S 3/23/2017 208 4.0 1.1 J 0.07 J MW-204S 9/29/2017 405 1.0 2.7 J U MW-204S 3/15/2018 244 0.18 J 1.3 J 0.11 J MW-204S 9/25/2018 253 0.50 J 2.0 0.13 J MW-204S 4/5/2019 U U 150 0.96 U 0.70 J 0.45 J 2.1 J 0.32 J U U U 0.18 J U 11 MW-204S 9/5/2019 U U 240 0.84 0.080 J 0.43 J 0.94 J 0.97 J 1.3 0.63 J 1.7 J U 0.25 U U MW-204S 3/10/2020 U U 200 1.0 0.053 J U 0.75 J 1.8 0.13 J 0.69 J 1.7 J U 0.22 U U MW-204S 9/1/2020 U U 190 0.37 J 0.090 J U 1.2 1.0 0.099 J 1.7 J 2.7 J U 0.14 J U 2.6 J MW-204S 3/17/2021 U U 120 0.79 U 1.2 0.39 J U 0.11 J U U U 0.16 J U U MW-204S 9/21/2021 U U 250 0.52 0.091 J U 1.1 1.1 U 2.6 J 2.9 J U 0.21 Page 5 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-205D 9/19/2012 0.51 J 83.4 J 0.08 J U 0.17 J 0.08 J 0.07 J 1.2 J U MW-205D 12/27/2012 0.50 J 83.3 J 0.56 J U 0.18 J 0.20 J 0.05 J 1.8 J U MW-205D 3/13/2013 0.90 J 77.9 J 0.41 J U 0.18 J 0.17 J U 2.7 J 0.17 J MW-205D 6/26/2013 0.90 J 73.2 J 0.32 J U 0.18 J 0.14 J 0.02 J 2.4 J 0.17 J MW-205D 9/25/2013 0.41 J 70.2 J 0.26 J U 0.14 J 0.06 J 0.03 J 1.8 J U MW-205D 12/31/2013 0.75 J 74.4 J 0.57 J U 0.13 J 0.09 J U 3.4 J 0.22 J MW-205D 3/26/2014 0.85 J 71.4 J 0.34 J U 0.21 J 0.05 J 0.04 J 2.7 J 0.10 J MW-205D 6/26/2014 0.20 J 113 0.62 J 4.4 J 0.18 J U U 1.0 J 0.40 J MW-205D 5/28/2015 0.72 J 85.7 J 0.30 J 1.6 J 0.14 J 0.07 J U 2.5 J 0.07 J MW-205D 9/30/2015 0.49 J 80.3 J 1.0 0.15 J 0.20 J 0.22 J U 2.2 J 0.13 J MW-205D 12/10/2015 0.53 J 71.9 J 0.52 J U 0.15 J 2.4 J U 2.3 J 0.09 J MW-205D 3/16/2016 U 66.7 J 1.0 U 0.17 J U U 2.5 J U MW-205D 6/22/2016 U 51 J U U U U U U 1.3 J MW-205D 9/29/2016 U 60.7 J 0.56 J 0.58 J 0.39 J 0.93 J U 1.8 J U MW-205D 12/21/2016 U 35.6 J 5.0 1.4 J U 1.8 J U U 0.45 J MW-205D 3/23/2017 U 25.4 J 1.0 0.70 J 0.19 J 0.78 J 0.04 J U 0.06 J MW-205D 6/27/2017 0.76 J 67.3 J 0.97 J 0.19 J 0.50 J 2.3 J U 0.78 J U MW-205D 9/29/2017 0.69 J 57.0 J 2.0 0.25 J 0.53 J 1.0 J U 1.2 J U MW-205D 12/20/2017 0.68 J 67.6 J 3.0 U U 0.41 J U 2.8 J U MW-205D 3/15/2018 0.57 J 59.3 J 2.0 U U 0.22 J U 2.3 J U MW-205D 6/6/2018 0.90 J 52.5 J 2.0 U 0.14 J 0.28 J 0.06 J 3.2 J U MW-205D 9/25/2018 0.53 J 72.6 3.0 U 0.33 J 0.88 J U 2.4 J U MW-205D 12/18/2018 1.1 J 59.6 0.69 J U 0.34 J 0.37 J U 2.6 J U MW-205D 4/5/2019 U U 81 0.078 J 0.17 J U 0.33 J 13 0.42 J 3.0 J 2.1 J 0.10 J U U 6.1 J MW-205D 6/4/2019 U U 130 U 0.17 J 1.2 0.32 J 17 U 2.9 J 1.9 J U U U 3.5 J MW-205D 9/4/2019 U U 150 U 0.20 0.59 J 0.79 J 18 0.32 J 1.8 J U U 0.027 J U 5.8 J MW-205D 3/10/2020 U U 190 U 0.22 U 1.3 28 0.29 J 5.0 J 3.5 J 0.22 0.025 J U 3.9 J MW-205D 9/2/2020 U 1.2 85 U 0.12 J U 0.60 J 11 0.11 J 4.9 J 5.7 U U U U MW-205D 3/17/2021 U U 140 U 0.18 J U 1.4 20 0.21 J 1.7 J U U U U 3.0 J MW-205D 9/21/2021 U 1.1 100 0.067 J 0.13 J U 0.74 J 11 U 5.9 4.0 J 0.076 J U U U Page 6 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-205S 9/19/2012 1.4 J 453 U U 1.7 J 0.25 J 0.06 J 1.8 J U MW-205S 12/27/2012 1.7 J 474 0.12 J 0.76 J 1.9 J 1.6 J 0.02 J 3.1 J U MW-205S 3/13/2013 2.9 J 613 0.23 J 3.0 J 3.6 J 5.0 J U 4.5 J U MW-205S 6/26/2013 2.8 J 424 0.32 J 0.97 J 23 4.0 J U 3.9 J 0.06 J MW-205S 9/25/2013 1.5 J 481 U U 1.9 J 0.19 J U 2.9 J U MW-205S 12/31/2013 1.8 J 393 0.20 J 0.30 J 2.3 J 1.6 J U 3.9 J U MW-205S 3/26/2014 3.9 J 525 0.47 J 2.5 J 28 7.8 J U 5.1 J 0.09 J MW-205S 6/26/2014 3.4 J 445 0.44 J 1.2 J 31 3.2 J U 3.8 J 0.51 J MW-205S 5/28/2015 3.0 J 483 0.07 J 1.6 J 28 5.0 J U 4.2 J 0.06 J MW-205S 9/30/2015 2.1 J 520 0.57 J 4.3 J 5.3 J 9.1 J U 4.7 J 0.08 J MW-205S 12/10/2015 1.5 J 507 0.11 J 2.5 J 5.6 J 6.5 J U 3.8 J 0.04 J MW-205S 3/16/2016 3.7 J 361 0.10 J U 27 1.5 J U 3.7 J U MW-205S 6/22/2016 U 299 U 1.3 J 6.7 J 3.6 J U U 1.1 J MW-205S 9/29/2016 2.3 J 480 0.97 J 6.1 J 6.0 J 19 U 4.2 J 0.10 J MW-205S 12/21/2016 U 447 1.0 1.6 J 4.5 J 3.5 J U 5.4 J 1.0 J MW-205S 3/23/2017 2.3 J 467 0.98 J 1.6 J 4.4 J 5.0 J U 4.8 J U MW-205S 6/27/2017 2.2 J 451 5.0 U 4.5 J 1.5 J U 3.4 J U MW-205S 9/29/2017 2.5 J 597 3.0 5.9 J 4.5 J 22 U 5.2 J U MW-205S 12/20/2017 2.1 J 454 0.42 J 1.7 J 4.3 J 4.1 J U 5.5 J U MW-205S 3/15/2018 3.1 J 616 2.0 8.9 J 4.9 J 36 U 4.7 J 0.20 J MW-205S 6/6/2018 3.1 J 402 2.0 3.0 J 5.7 J 8.5 J U 6.9 J 0.09 J MW-205S 9/25/2018 2.5 J 542 0.86 J 5.8 5.4 14 U 5.4 J 0.09 J MW-205S 12/18/2018 3.6 J 511 0.12 J 0.68 J 7.7 2.9 J U 3.9 J U MW-205S 4/5/2019 U 1.5 310 U U U 7.1 U U 1.6 J 2.7 J U 0.33 U U MW-205S 6/4/2019 U U 320 U U 0.89 J 5.9 1.3 J U 1.6 J 2.6 J U 0.29 U U MW-205S 9/4/2019 U 2.6 420 U U 0.42 J 3.7 1.2 U 1.5 J 2.5 J U 0.15 J U U MW-205S 3/10/2020 U 2.7 450 U U U 4.0 1.4 U 3.4 J 6.8 U 0.023 J U U MW-205S 9/2/2020 U 3.4 390 U U 1.1 3.3 1.4 U 3.0 J 7.4 U 0.043 J U U MW-205S 3/17/2021 U 2.1 220 U U U 13 3.1 0.2 J 1.1 J U U 0.75 U U MW-205S 9/21/2021 U 2.2 360 U U U 4.4 0.53 J U 1.5 J U U 0.18 J U U Page 7 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-206D 9/19/2012 0.88 J 40.2 J 0.12 J U 0.16 J 0.08 J 0.03 J 0.18 J U MW-206D 12/27/2012 0.46 J 44.8 J 0.26 J U 0.15 J 0.34 J U U U MW-206D 3/13/2013 0.34 J 34.5 J 0.13 J U 0.11 J U U U U MW-206D 6/26/2013 0.70 J 34.0 J 0.13 J U 0.09 J 0.09 J U 0.10 J U MW-206D 9/25/2013 0.66 J 37.0 J 0.07 J U 0.11 J 0.10 J 0.04 J 0.29 J U MW-206D 12/31/2013 0.49 J 36.4 J 0.18 J U 0.10 J 0.42 J U 0.16 J U MW-206D 3/26/2014 0.51 J 35.1 J 0.69 J U 0.19 J 0.22 J U 0.08 J 0.09 J MW-206D 6/26/2014 0.29 J 35.5 J 0.31 J U U U U U U MW-206D 5/28/2015 0.36 J 40.4 J 0.21 J U 0.09 J 0.11 J U U 0.14 J MW-206D 9/30/2015 0.45 J 38.0 J 0.16 J U 0.07 J 0.14 J U U 0.04 J MW-206D 12/10/2015 0.50 J 43.5 J 0.14 J U 0.06 J 0.04 J U U U MW-206D 3/16/2016 U 34.0 J 0.09 J U U 0.07 J U U U MW-206D 6/22/2016 U 36.0 J U U U U U U 0.8 J MW-206D 9/29/2016 U 37.6 J 2.0 U 0.10 J 0.31 J U U U MW-206D 12/21/2016 U 39.0 J 1.0 U U U U U 0.43 J MW-206D 3/23/2017 U 37.1 J 5.0 U 0.06 J 0.61 J 0.04 J U U MW-206D 6/27/2017 0.18 J 35.0 J 4.0 1 U U 0.20 J U U U MW-206D 9/29/2017 0.27 J 33.3 J 1.0 U U U U U U MW-206D 12/20/2017 U 37.9 J 1.0 U U 0.20 J U U U MW-206D 3/15/2018 U 34.5 J 2.0 U U 0.16 J U U U MW-206D 6/6/2018 0.14 J 35.9 J 3.0 U 0.04 J 0.59 J U U U MW-206D 9/25/2018 0.09 J 34.4 0.47 J U U 0.04 J U 0.28 J U MW-206D 12/18/2018 0.48 J 38.6 0.54 J U 0.10 J 0.17 J U U U MW-206D 4/5/2019 U U 41 U 0.72 U 0.099 J 1.6 J 0.35 J U U U U U 13 MW-206D 6/4/2019 U U 39 U 0.10 J 1.1 U U 0.41 J U U U U U 3.6 J MW-206D 9/4/2019 U U 40 U 0.24 0.34 J U U U 0.71 J U U U U 4.4 J MW-206D 3/10/2020 U U 40 U 0.20 U U U U 1.6 J U U U U 3.5 J MW-206D 9/2/2020 U U 35 U U U U U U 1.6 J U U U U U MW-206D 3/17/2021 U U 36 U U 1.2 U U 1.8 1.1 J U U U U 2.3 J MW-206D 9/21/2021 U U 47 U 0.033 J U U 0.68 J U 2.1 J U U U U U Page 8 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-207D 9/19/2012 0.39 J 22.7 J 0.07 J 0.69 J 0.29 J 1.9 J 0.09 J 0.48 J U MW-207D 12/27/2012 0.24 J 9.5 J 0.14 J U 0.06 J 0.34 J 0.03 J 0.38 J U MW-207D 3/13/2013 0.57 J 19.5 J 0.26 J 1.0 J 0.57 J 2.4 J U 0.48 J U MW-207D 6/26/2013 0.40 J 11.4 J 0.23 J 0.57 J 0.37 J 0.71 J 0.02 J 0.46 J 0.07 J MW-207D 9/25/2013 0.90 J 7.0 J 0.13 J U 0.07 J 0.21 J 0.03 J 0.59 J U MW-207D 12/31/2013 0.57 J 17.8 J 0.09 J 0.99 J 0.47 J 1.8 J U 0.48 J U MW-207D 3/26/2014 0.78 J 6.3 J 0.82 J U 0.09 J 0.10 J U 0.35 J U MW-207D 6/26/2014 0.77 J 23.9 J 0.57 J 1.5 J 0.83 J 1.9 J U U 0.12 J MW-207D 5/28/2015 0.52 J 50.9 J 0.42 J 4.2 J 1.4 J 11 U 0.41 J 0.38 J MW-207D 9/30/2015 0.36 J 18.0 J 0.44 J U 0.07 J 0.98 J U 0.37 J 0.03 J MW-207D 12/10/2015 0.94 J 10.0 J 0.18 J U 0.06 J 0.52 J U 0.50 J 0.02 J MW-207D 3/16/2016 1.3 J 7.8 J 0.32 J U 0.07 J 0.22 J U U U MW-207D 6/22/2016 U 10 J U U U U U U 0.82 J MW-207D 9/29/2016 1.3 J 9.3 J 0.78 J U 0.07 J 0.57 J U U U MW-207D 12/21/2016 U 23.2 J U 1.5 J U 1.6 J U U 0.30 J MW-207D 3/23/2017 0.81 J 32.6 J 0.69 J 0.13 J 0.18 J 1.2 J U U U MW-207D 6/27/2017 1.1 J 33.2 J 0.58 J 0.20 J U 0.85 J U U U MW-207D 9/29/2017 1.8 J 11.5 J 0.46 J U U 0.20 J U U U MW-207D 12/20/2017 1.4 J 32.9 J 2.0 U 0.27 J 2.1 J U U U MW-207D 3/15/2018 1.9 J 19.4 J 0.72 J U U 0.33 J U U U MW-207D 6/6/2018 1.6 J 16.1 J 0.37 J U 0.08 J 0.27 J U U U MW-207D 9/25/2018 1.7 J 18.3 0.76 J U 0.18 J 0.55 J U U U MW-207D 12/18/2018 1.3 J 16.6 0.42 J U 0.04 J 0.06 J U U U MW-207D 4/4/2019 U 1.9 8.8 J U U U 0.26 J 10 2.2 2.0 J U U U U 14 MW-207D 6/4/2019 U U 13 U 0.055 J 1.2 U 1.0 J U 0.77 J U U U U U MW-207D 9/5/2019 U 1.1 9.7 J U 0.081 J 0.81 J 0.14 J U U 0.90 J U U U U 3.4 J MW-207D 3/12/2020 U 0.85 7.5 J U U U 0.25 J U U 1.5 J U U U U U MW-207D 9/2/2020 U 0.85 8.8 J U 0.072 J U U 0.90 J U 1.4 J U U U U 3.1 J MW-207D 3/17/2021 U 2.4 6.9 J U 0.10 J U 0.19 J U U 0.77 J U U U U 3.0 J MW-207D 9/23/2021 0.51 J 1.2 10 U 0.095 J U U 0.94 J U 2.0 J U U U U Page 9 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-207S 9/19/2012 0.67 J 58.8 J 0.24 J 3.3 J 9.2 J 2.6 J 0.04 J 0.40 J U MW-207S 12/27/2012 0.34 J 52.8 J 0.15 J 2.2 J 7.5 J 2.2 J 0.06 J 0.26 J U MW-207S 3/13/2013 2.2 J 190 0.46 J 13 6.7 J 21 0.06 J 0.56 J 0.12 J MW-207S 6/26/2013 1.3 J 115 0.45 J 8.3 J 6.3 J 14 0.06 J 0.81 J 0.12 J MW-207S 9/25/2013 2.5 J 183 0.41 J 14 10 18 0.07 J 1.1 J U MW-207S 12/31/2013 0.87 J 81 J 0.17 J 6.1 J 5.0 J 6.7 J U 0.76 J U MW-207S 3/26/2014 1.1 J 99.9 J 0.58 J 7.8 J 4.6 J 12 0.02 J 0.52 J 0.06 J MW-207S 6/26/2014 1.0 J 133 2.0 7.6 J 5.0 J 12 U 0.19 J 0.95 J MW-207S 5/28/2015 1.1 J 317 0.98 J 21 7.2 J 30 U 1.2 J 0.22 J MW-207S 9/30/2015 0.66 J 138 0.49 J 9.6 J 5.6 J 12 U 0.77 J 0.10 J MW-207S 12/10/2015 0.80 J 78.5 J 0.15 J 5.1 J 5.2 J 7.5 J U 0.43 J 0.06 J MW-207S 3/16/2016 U 37.2 J 0.07 J 0.85 J 5.0 J 0.93 J U U U MW-207S 6/22/2016 U 227 0.53 J 9.5 J 6.4 J 19 0.08 J U 0.46 J MW-207S 9/29/2016 U 92.0 J 0.88 J 3.7 J 3.1 J 4.5 J 0.05 J U U MW-207S 12/21/2016 U 105 U 6.8 J 5.1 J 0.92 J U U 0.62 J MW-207S 3/23/2017 1.1 J 344 0.91 J 9.7 J 6.6 J 38 0.12 J 1.5 J 0.23 J MW-207S 6/27/2017 0.76 J 61.6 J 2.0 1 3.2 J 3.4 J 4.8 J U U U MW-207S 9/29/2017 1.2 J 602 2.0 48 41 81 0.42 1.5 J 0.26 J MW-207S 12/20/2017 1.5 J 414 2.0 13 8.3 J 42 0.40 2.1 J U MW-207S 3/15/2018 0.86 J 90 J 0.88 J 5.9 J 3.1 J 6.9 J U U U MW-207S 6/6/2018 0.91 J 78.7 J 0.75 J 4.2 J 2.6 J 5.6 J U 0.41 J U MW-207S 9/25/2018 0.54 J 43 0.07 J 2.4 J 1.7 1.9 J U 0.24 J U MW-207S 12/18/2018 0.44 J 14.5 0.08 J 0.76 J 1.8 1.0 J U U U MW-207S 4/4/2019 U 0.40 J 31 0.151 U U 1.7 1.0 J U U U U U U U MW-207S 6/4/2019 U U 41 0.18 J U 1.1 0.55 J 1.7 J U U U U 0.028 J U 3.6 J MW-207S 9/5/2019 U U 41 0.23 J 0.041 J 0.67 J 1.5 U 2.1 U U U 0.034 J U 2.6 J MW-207S 3/12/2020 U U 30 0.14 J U 0.92 J 0.33 J 1.1 U U U U 0.029 J U U MW-207S 9/2/2020 U U 22 U U 3.1 0.36 J U 0.37 J 1.6 J U U U U 11 MW-207S 3/17/2021 U U 20 U U U 1.5 U U U U U U U U MW-207S 9/23/2021 U U 48 0.29 J 0.039 J 1.0 1.4 0.80 J U 0.93 J U U U U U Page 10 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-208D 9/19/2012 0.62 J 84.4 J 0.16 J U 0.74 J 0.10 J 0.05 J 1.2 J U MW-208D 12/27/2012 0.57 J 78.2 J 0.42 J 2.8 J 1.0 J 1.9 J U 1.1 J U MW-208D 3/13/2013 0.98 J 63.1 J 0.64 J 4.8 J 1.8 J 2.8 J U 0.97 J U MW-208D 6/26/2013 1.0 J 82 J 0.55 J 9.0 J 3.6 J 6.2 J 0.02 J 1.1 J 0.10 J MW-208D 9/25/2013 4.1 J 227 0.95 J 19 8.0 J 28 0.09 J 2.0 J U MW-208D 12/31/2013 0.46 J 38.0 J 0.22 J 4.1 J 1.5 J 2.5 J U 0.90 J 0.10 J MW-208D 3/26/2014 1.0 J 59.1 J 0.40 J 6.6 J 2.7 J 5.7 J U 0.85 J 0.04 J MW-208D 6/26/2014 0.26 J 21.1 J 0.29 J 1.7 J 0.39 J 0.66 J U 0.20 J U MW-208D 5/28/2015 U 19.0 J 0.54 J 1.2 J 0.10 J 0.93 J U 0.29 J 0.04 J MW-208D 9/30/2015 U 17.7 J 0.15 J 1.3 J 0.22 J 0.41 J U 0.34 J 0.02 J MW-208D 12/10/2015 0.72 J 32.4 J 0.32 J 3.6 J 1.4 J 2.8 J U 0.64 J 0.04 J MW-208D 3/16/2016 0.81 J 47.8 J 0.58 J 5.2 J 2.2 J 4.3 J U U U MW-208D 6/22/2016 U 27 J U 2.5 J 0.85 J 1.7 J U U 0.87 J MW-208D 9/29/2016 U 14.1 J 0.27 J 1.0 J 0.14 J 0.21 J U U U MW-208D 12/21/2016 U 20.3 J U 4.5 J U 0.62 J U U U MW-208D 3/23/2017 U 22.8 J 1.0 J 4.1 J 0.13 J 1.0 J U 0.58 J U MW-208D 6/27/2017 1.4 J 93.1 J 3.0 13 3.5 J 6.2 J U 0.69 J U MW-208D 9/29/2017 1.3 J 21.8 J 0.76 J 4.7 J U 0.42 J U 0.84 J U MW-208D 12/20/2017 0.89 J 37.3 J 0.91 J 6.3 J 1.4 J 3.0 J U 0.80 J U MW-208D 3/15/2018 0.77 J 16 J 0.33 J 3.0 J U 0.14 J U 0.79 J U MW-208D 6/6/2018 2.3 J 178 4.0 12 5.4 J 11 0.09 J 1.3 J 0.12 J MW-208D 9/25/2018 1.1 J 28.9 0.5 J 6.1 1.6 2.8 J U 0.54 J U MW-208D 12/18/2018 0.83 J 30.7 0.28 J 5.2 1.5 3.2 J U 0.30 J U MW-208D 4/5/2019 1.2 U 14 U 0.092 J 3.3 0.15 J 2.3 J 0.44 J U U U U 5.2 5.6 J MW-208D 6/4/2019 1.1 U 16 U 0.11 J 4.9 0.28 J 3.8 J 0.84 1.2 J U U U 3.3 J 8.1 J MW-208D 9/5/2019 0.90 J U 16 U 0.064 J 3.5 0.40 J 3.0 1.0 1.7 J U U U 5.4 5.3 J MW-208D 3/12/2020 1.1 0.81 39 0.26J 0.66 9.7 2.1 24 4.5 4.3 J U U 0.049 J 17 21 MW-208D 9/2/2020 0.58 J U 14 U 0.062 J 3.8 0.25 J 2.6 0.26 J 1.8 J U U U 3.4 J U MW-208D 1 3/17/2021 10.81 J I U 1 17 U 0.053 J 4.3 0.22 J 3.7 0.41 J 1.7 J U U U 4.2 J 8.9 J 164,1 MW-208D 1 9/23/2021 11.1 B 10.61 J 1 18 1 U 0.057 J 4.3 0.21 J 4.5 0.38 J 2.0 J U U U 4.6 J Page 11 of 12 Table 6 Historical Corrective Action Monitoring Results - Metals Wilders Grove Landfill r = 0 0 E m C O Q (� •� N Q •L m E 3 m m E _3 c�a U E E s U �..� U L a) Q. U .a y 7 i y V Z E 7_ c y L N > in E 3 - t ~ ~ > V c N NC 2L Standard * 1 (1) 10 700 4 (1) 2 10 1 (1) 1000 15 1 100 20 20 0.2 (1) 2000 (1) 0.3 (1) 1000 MW-208S 9/19/2012 1.1 J 274 0.40 J 8.5 J 9.0 J 4.6 J 0.06 J 2.0 J U MW-208S 12/27/2012 3.8 J 592 2 23 9.2 J 34 0.12 J 3.2 J 0.22 J MW-208S 3/13/2013 2.6 J 451 0.89 J 19 8.6 J 34 0.03 J 3.1 J 0.13 J MW-208S 6/26/2013 1.9 J 163 0.32 J 6.5 J 4.7 J 5.0 J 0.02 J 6.1 J 0.06 J MW-208S 9/25/2013 1.5 J 217 0.27 J 9.1 J 12 6.1 J U 2.5 J U MW-208S 12/31/2013 2.2 J 281 0.43 J 15 10 12 U 3.4 J 0.08 J MW-208S 3/26/2014 1.5 J 73.7 J 0.17 J 4.1 J 1.8 J 2.0 J U 4.2 J U MW-208S 6/26/2014 1.2 J 108 0.26 J 10 6.1 J 7.8 J U 1.1 J 0.08 J MW-208S 5/28/2015 U 27.3 J 0.04 J 3.1 J 1.7 J 2.7 J U 0.26 J 0.28 J MW-208S 9/30/2015 0.87 J 359 1.0 15 12 14 U 2.2 J 0.14 J MW-208S 12/10/2015 0.92 J 84.2 J 0.17 J 5.4 J 3.7 J 3.9 J U 1.7 J 0.08 J MW-208S 3/16/2016 U 53.4 J 0.09 J 0.77 J 1.2 J 1.1 J U 0.89 J U MW-208S 6/22/2016 U 85 J U 0.48 J 1.0 J U U U 2.9 J MW-208S 9/29/2016 1.1 J 176 0.87 J 5.5 J 8.8 J 5.9 J U 1.7 J U MW-208S 12/21/2016 U 91.9 J 0.64 J 7.9 J 7.1 J 11 0.06 J U 0.62 J MW-208S 3/23/2017 U 69.2 J 0.93 J 4.6 J 12 5.9 J 0.05 J 1.3 J 0.06 J MW-208S 6/27/2017 1.7 J 171 1.0 14 21 16 0.11 J 1.4 J U MW-208S 9/29/2017 1.1 J 171 0.86 J 4.6 J 7.6 J 7.1 J U 1.4 J U MW-208S 12/20/2017 0.87 J 240 2.0 7.1 J 11 11 U 1.9 J U MW-208S 3/15/2018 1.3 J 208 2.0 8.9 J 8.6 J 15 U 1.8 J U MW-208S 6/6/2018 0.9 J 181 0.78 J 6.6 J 8.6 J 7.8 J 0.06 J 1.3 J 0.06 J MW-208S 9/25/2018 0.46 J 66.2 0.11 J 3.4 J 2.1 1.7 J U 1.4 J U MW-208S 12/18/2018 0.17 J 14.7 U 1.4 J 0.49 J 0.82 J U 0.78 J U MW-208S 4/4/2019 U 0.44 14 U U 0.84 J 0.75 J 1.2 J U U U U U U U MW-208S 6/4/2019 U U 91 U 0.20 J 1.4 1.6 1.7 J 0.17 J 2.4 J U U U U 14 MW-208S 9/5/2019 U U 160 U 0.31 0.53 J 3.4 1.8 1.8 2.7 J 3.2 J U U U 5.6 J MW-208S 3/12/2020 U U 36 U U 1.4 0.61 J 0.96 J U 1.2 J 2.6 J U U U U MW-208S 9/2/2020 U U 28 U U 2.2 0.18 J U 0.12 J 1.4 J 3.2 J U U U U MW-208S 3/17/2021 U U 6.2 J U U 2.3 U U 0.089 J U U U U U U MW-208S 9/23/2021 U 1.3 180 U 0.22 U 3.3 2.0 0.18 J 5.8 4.1 J U U U Page 12 of 12 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill c f0 E < R Q o d O O O G) O O V N t c C m d t E O 5 E O m i O O d C c Y W = N d �a O O V m C O d OO O O m C tO` O p G) m O ` t p d R Q O- O tOE- tri E G N c m LO o fV NC 2B Standard 2,000 (AL) NE 3 (AL) 7 (FC) NE 51 (FC) NE 27 (FC) 120 (FC) 10,000 (FC) 26,000 (AL) 100 (AL) 1.6 (FC) 800 (FC) NE 2,000 (FC) 96 (FC) NE 21 (FC) 0.13 (FC) 0.1 (FC) 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 20-Sep-18 U U U U U U U U U U U U U U U U U SW-1 4-Apr-19 5.9J U 0.37J U U U U U U U 1.3 U U U U U U SW-1 4-Sep-19 5.8J U 0.39J U U U U U U U 1.5 U U U U U U SW-1 10-Mar-20 4.6J U 0.33J U U U U U U U 1.2 U U U U U U SW-1 2-Sep-20 9.01 U U U U U U U U U 0.57J U U U U U U SW-1 17-Mar-21 191 U 0.27J U U U U U U U 1.0 U U U U U U SW-1 1 23-Se -21 1 130 1 1 1 U 0.21J I U I U U I U I U I U I U 0.86J I U U U U U Page 1 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill O fUy0 CL !/ RyQ 0 M y O C CGf .0 O U 6 N N Cd M O U M N CGf .0 O 2 � d C mO3 O N w N � O L A E CO w O 0 N C dL LL L E 3 w t R S d O U d R O L U N d d O L U 0 d y t y d Lt d O U N Q CO Q U 6 N Q C Q O O t M C Q QO O O V N N Q C Q O NCL O M W d Qy Q O C C M O y N W MN l !J NR C 7 OO M AO 2 y O =/x 6 2 04 NRd tO 'a NC 2B Standard 0.1 (FC) 3,000 (FC) 10 (FC) 900 (FC) NE NE NE 100 (FC) 650 (FC) 20,000 (FC) 720 (FC) 4,000 (FC) 31 (FC) NE NE NE 12 (FC) 12 (FC) 80 (FC) 130 (FC) NE 18 (FC) NE NE 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 0.501 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 20-Sep-18 U U U U U U U U U U U U U U U U SW-1 4-Apr-19 U 0.26J 3.8 U 0.36J U U 0.36J U U U U 19 U U U SW-1 4-Sep-19 U 0.331 3.8 U 0.45J U U 0.97J U U U U 46 U U U SW-1 10-Mar-20 U U 3.1 U 0.34J U U 0.35J U U U U 29 U U U SW-1 2-Sep-20 U U 1.4 U 0.16J U U U U U U U 10 U U U SW-1 17-Mar-21 U 0.18J U 2.5 U U U U 0.17J U U U U 23 U U U U SW-1 23-Se -21 1 U 0.12J I U 1 1.9 1 U 0.20J U U U U U U U I U 1 16 U U U Page 2 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill U J G1 CL M fA d C d O- N t V Q O N O U L% y O V N = L N Z' y L O A d N >. L a N G=7 t t R Z d .`-. O O d C i y N t p O G /i y N w L p O C1 A y N = O V C 7 N d O p L H N M t O L 'C ~_ M O` O L i N y N O t L d O O 3 O O V CC G O O O L H N N N Q i .O _O t ci T i _ R w y y Gf X NC 2B Standard NE NE 1,000 (FC) 9,600 (AL) 26,000 (AL) 12 (AL) NE NE NE 4 (FC) 3.3 (FC) 11 (AL) 0.076 (FC) 200,000 (FC) 8.9 (FC) 30 (FC) 67,000 (FC) 0.001 (FC) NE 2.4 (FC) 670 (AL) 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 20-Sep-18 U U U U U U U U U U U U U U U SW-1 4-Apr-19 U U U U U U U U U U U U U U U SW-1 4-Sep-19 U U U U U U U U U U U U U U U SW-1 10-Mar-20 U U U U U U U U U U U U U U U SW-1 2-Sep-20 U U U U U U U U U U U U U U U SW-1 17-Mar-21 U U U U U U U U U U U U U U U U U SW-1 1 23-Se -21 U U U U I U I U U U I U U U U U U U U Page 3 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill c f0 E < R Q o d O O O G) O O V N t c C m d t E O 5 E O m i O O d C c Y W = N d �a O O V m C O d OO O O m C tO` O p G) m O ` t p d R Q O- O tOE- tri E G N c m LO o fV NC 2B Standard 2,000 (AL) NE 3 (AL) 7 (FC) NE 51 (FC) NE 27 (FC) 120 (FC) 10,000 (FC) 26,000 (AL) 100 (AL) 1.6 (FC) 800 (FC) NE 2,000 (FC) 96 (FC) NE 21 (FC) 0.13 (FC) 0.1 (FC) 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 20-Sep-18 U U U U U U U U U U U U U U U U U SW-2 4-Apr-19 4.6J U U U U U U U U U U U U U U U U SW-2 4-Sep-19 3.9J U U U U U U U U U U U U U U U U SW-2 10-Mar-20 U U U U U U U U U U U U U U U U U SW-2 2-Sep-20 8.2J U U U U U U U U U U U U U U U U SW-2 17-Mar-21 3.3J U U U U U U U U U U U U U U U U SW-2 23-Se -21 3.6J U U U U U U U U U U U U U U U Page 4 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill O fUy0 CL !/ RyQ 0 M y O C CGf .0 O U 6 N N Cd M O U M N CGf .0 O 2 � d C mO3 O N w N � O L A E CO w O 0 N C dL LL L E 3 w t R S d O U d R O L U N d d O L U 0 d y t y d Lt d O U N Q CO Q U 6 N Q C Q O O t o M C Q QO O O V N N Q C Q O NCL O M W d Qy Q O C C M O y N W MN l !J NR C 7 OO M AO 2 y O =/x 6 2 04 NRd tO 'a NC 2B Standard 0.1 (FC) 3,000 (FC) 10 (FC) 900 (FC) NE NE NE 100 (FC) 650 (FC) 20,000 (FC) 720 (FC) 4,000 (FC) 31 (FC) NE NE NE 12 (FC) 12 (FC) 80 (FC) 130 (FC) NE 18 (FC) NE NE 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 SW-2 4-Apr-19 U U U U U U U U U U U U U U U U SW-2 4-Sep-19 U U U U U U U U U U U U U U U U SW-2 10-Mar-20 U U U U U U U U U U U U U U U U SW-2 2-Sep-20 U U U U U U U U U U U U U U U U SW-2 17-Mar-21 U U U U U U U U U U U U U U U U U U SW-2 23-Se -21 U U U U U U U U U U U U U U U U U U Page 5 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill U J G1 CL M fA d C d O- N t V Q O N O U L% y O V N = L N Z' y L O A d N >. L a N G=7 t t R Z d .`-. O O d C i y N t p O G /i y N w L p O C1 A y N = O V C 7 N d O p L H N M t O L 'C ~_ M O` O L i N y N O t L d O O 3 O O V CC G O O O L H N N N Q i .O _O t ci T i _ R w y y Gf X NC 2B Standard NE NE 1,000 (FC) 9,600 (AL) 26,000 (AL) 12 (AL) NE NE NE 4 (FC) 3.3 (FC) 11 (AL) 0.076 (FC) 200,000 (FC) 8.9 (FC) 30 (FC) 67,000 (FC) 0.001 (FC) NE 2.4 (FC) 670 (AL) 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 20-Sep-18 U U U U U U U U U U U U U U U SW-2 4-Apr-19 U U U U U U U U U U U U U U U SW-2 4-Sep-19 U U U U U U U U U U U U U U U SW-2 10-Mar-20 U U U U U U U U U U U U U U U SW-2 2-Sep-20 U U U U U U U U U U U U U U U SW-2 17-Mar-21 U U U U U U U U U U U U U U U U U SW-2 23-Se -21 U U U U U U U U U U U U U U U U Page 6 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill c f0 E < R Q o d O O O G) O O V N t c C m d t E O 5 E O m i O O d C c Y W = N d �a O O V m C O d OO O O m C tO` O p G) m O ` t p d R Q O- O tOE- tri E G N c m LO o fV NC 2B Standard 2,000 (AL) NE 3 (AL) 7 (FC) NE 51 (FC) NE 27 (FC) 120 (FC) 10,000 (FC) 26,000 (AL) 100 (AL) 1.6 (FC) 800 (FC) NE 2,000 (FC) 96 (FC) NE 21 (FC) 0.13 (FC) 0.1 (FC) 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 SW-3 4-Apr-19 4AJ U U U U U U U U U U U U U U U U SW-3 4-Sep-19 U U U U U U U U U U U U U U U U U SW-3 10-Mar-20 U U U U U U U U U U U U U U U U U SW-3 2-Sep-20 U U U U U U U U U U U U U U U U U SW-3 17-Mar-21 4.OJ U U U U U U U U U U U U U U U U SW-3 23-Sep-21 3.8J U U U I U U U U U U U U U U U U Page 7 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill O fUy0 CL !/ RyQ 0 M y O C CGf .0 O U 6 N Cd N M O U M N CGf .0 O 2 � d C mO3 O N w N � O L A E CO w O 0 N C dL LL L E 3 w t R S d O U d R O L U N d d O L U 0 d y t y d Lt d O U N Q CO Q U 6 N Q C Q O O t M C Q QO O O V N N Q C Q O NCL O M W d Qy Q O C C M O y N W MN l !J NR C 7 OO M AO 2 y O =/x 6 2 04 NRd tO 'a NC 2B Standard 0.1 (FC) 3,000 (FC) 10 (FC) 900 (FC) NE NE NE 100 (FC) 650 (FC) 20,000 (FC) 720 (FC) 4,000 (FC) 31 (FC) NE NE NE 12 (FC) 12 (FC) 80 (FC) 130 (FC) NE 18 (FC) NE NE 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 SW-3 4-Apr-19 U U U U U U U U U U U U U U U U SW-3 4-Sep-19 U U U U U U U U U U U U U U U U SW-3 10-Mar-20 U U U U U U U U U U U U U U U U SW-3 2-Sep-20 U U U U U U U U U U U U U U U U SW-3 17-Mar-21 U U U U U U U U U U U U U U U U U U SW-3 23-Sep-21 U U U U U U U U U U U U U U I U U U U Page 8 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill U J G1 CL M fA d C d O- N t V Q O N O U L% y O V N = L N Z' y L O A d N >. L a N G=7 t t R Z d .`-. O O d C i y N t p O G /i y N w L p O C1 A y N = O V C 7 N d O p L H N M t O L 'C ~_ M O` O L i N y N O t L d O O 3 O O V CC G O O O L H N N N Q i .O _O t ci T i _ R w y y Gf X NC 2B Standard NE NE 1,000 (FC) 9,600 (AL) 26,000 (AL) 12 (AL) NE NE NE 4 (FC) 3.3 (FC) 11 (AL) 0.076 (FC) 200,000 (FC) 8.9 (FC) 30 (FC) 67,000 (FC) 0.001 (FC) NE 2.4 (FC) 670 (AL) 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 SW-3 4-Apr-19 U U U U U U U U U U U U U U U SW-3 4-Sep-19 U U U U U U U U U U U U U U U SW-3 10-Mar-20 U U U U U U U U U U U U U U U SW-3 2-Sep-20 U U U U U U U U U U U U U U U SW-3 17-Mar-21 U U U U U U U U U U U U U U U U U SW-3 23-Sep-21 U U U U U U U U U U U U U U U U Page 9 of 10 Table 7 Historical Surface Water Results - Volatile Organic Compounds Wilders Grove Landfill 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 **: Suspected chloromenthane 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 fish consumption (FC) 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 June 10, 2019). 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. Bold concentrations exceed the NC 2B Surface Water Protection Standards. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 10 of 10 Table 8 Historical Surface Water Results - Metals Wilders Grove Landfill E N J E E Q d Q L m CO m U E t U Q U Q U J Y Z C (n > t F- > C N NC 26 Standard 640 FC 10 FC 21,000 AL 6.5 AL 0.15 AL 23.81 AL 1.6 AL 2.74 AL 0.54 AL 4,600 AL 5 (AL) 0.06 AL 2 (FC) NE 36.20 (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 <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 13 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 2.3 171 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 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 2AJ 0.87J U U 0.35J 4.2J SW-1 13-Mar-13 0.3 0.69 26.3 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 AJ 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 4AJ 0.01J 0.07J 0.73J 192 SW-1 28-Sep-15 m m m m m m m m 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.OJ 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 31.1J U 0.09J 0.30J 0.62J 2.2J 0.49J 1.4J U U U 0.78J 58 SW-1 20-Sep-18 0.05J 1.2J 45.2 U 0.10J 0.50J 3.1 2.3J 0.36J 1.9J U U 0.07J 0.32J 49 SW-1 4-Apr-19 0.10J 1.2 320 U U U 13 1.7J U 3.8J 3.1J U U U 5.6J SW-1 4-Sep-19 U 1.2 440 U U 0.44J 16 2.0 U 3.5J 2.7J U 0.044J U U SW-1 10-Mar-20 U 1.6 330 U U U 14 4.3 0.16J 5.5 5.6 U 0.032J U 5.7J SW-1 2-Sep-20 U 1.7 160 0.13J U 2.4 6.1 4.0 3.2 3.8J 4AJ U 0.088J 3.5J 10 SW-1 17-Mar-21 U 0.81 260 U U U 10 2.4 0.22J 2.5J U U 0.033J U 9.2J SW-1 23-Sep-21 0.26BJ 1.7 290 U U 1.0 10 2.8 0.68 5.OJ 4.OJ U U U 14 Page 1 of 3 Table 8 Historical Surface Water Results - Metals Wilders Grove Landfill E N J E E Q d Q L m CO m U _� E t U y Q U Q U d J Y U Z C (n L > t F- > C N NC 26 Standard 640 FC 10 FC 21,000 AL 6.5 AL 0.15 AL 23.81 AL 1.6 AL 2.74 AL 0.54 AL 4,600 AL 5 (AL) 0.06 AL 2 (FC) NE 36.20 AL 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 1 57 SW-2 24-Feb-95 <3 <10 15 <1 <5 <10 <10 <10 <5 <20 <5 <10 <1 <25 1 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 j <20 <10 <10 <40 <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 0.42 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 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 2AJ 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 27AJ U U 0.24J 0.37J 3.1J 0.60J 0.90J 0.39J U U 1.8J 8.8J SW-2 26-May-15 0.16J 0.34J 27.3J U 0.051 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 0.10J 17.OJ 25 SW-2 26-Sep-16 0.24J 1AJ 89.6J 0.80J 7.3J 4.OJ 17 26 3.9J U 0.06J 0.14J 19.5J 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 39.01 U U 0.82J 1.OJ 2.2J 1.5J 1.1J U U U 2AJ 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-Sep-18 0.17J 1.1J 38.5 0.15J 0.10J 2.2J 1.1 5.3J 2.8J 1AJ U U U 6.2 13 SW-2 4-Apr-19 0.18J 0.67 26 U U U 0.31J 2.6J 0.37J U U U U U 7.1J SW-2 4-Sep-19 U 0.64J 30 U U 0.73J 0.33J 1.7 0.31J 0.73J U U 0.026J U 3AJ SW-2 10-Mar-20 U U 33 U U 1.0 0.43J 2.4 0.44J 1.2J U U U U 7.3J SW-2 2-Sep-20 U 0.95 33 U U 2.6 1.4 4.6 2.8 1.7J U U U 5.5 101 SW-2 17-Mar-21 U U 27 U U U 0.29J 2.7 0.49J 0.67J U U U U 8.1J SW-2 23-Sep-21 0.41BJ 1.0 38 U U 2.2 1.0 4.9 2.7 1.7J U U U 5.6 13 Page 2 of 3 Table 8 Historical Surface Water Results - Metals Wilders Grove Landfill E tp NQIM -1 E IU L 00 U _� E U ++ Q U Q UE d J Y U C (n L > E t F- > C NM NC 26 Standard 640 FC 10 FC 21,000 AL 6.5 AL 0.15 AL 23.81 AL 1.6 AL 2.74 AL 0.54 AL 4,600 AL 5 (AL) 0.06 AL 2 (FC) NE 36.20 AL SW-3 20-Sep-94 <5 202 <5 <10 50 53 <5 <10 1 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 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 <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 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 2.01 1.2J 4.9J 5.3J 1.6J 0.34J I 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 1.8J 8.2J SW-3 26-May-15 0.14J 0.19J 26.8J U U U 0.40J 1.7J 0.35J 1.OJ 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 1.51 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.OJ 8.1J 4.6J 4.OJ U U 0.13J 14.5J 27 SW-3 26-Sep-16 0.23J U 22.OJ U U 0.34J 0.35J 1.7J 0.54J 0.73J U U U 1.7J 4.4J 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-Sep-18 0.17J 1.2J 37.9 0.13J 0.05J 2.3J 1.2 5.2J 2.9J 1.5J 0.19J U U 6.6 12 SW-3 4-Apr-19 0.17J 0.64 26 U U U 0.32J 2.5J 0.36J U U U U U 7.2J SW-3 4-Sep-19 U 0.82 29 U U 0.69J 0.33J 1.8 0.26J 0.75J U U 0.036J U 3.1J SW-3 10-Mar-20 U U 33 U U U 0.48J 2.4 0.56 1.2J U U U U 7.5J SW-3 2-Sep-20 U 0.82 31 U U 2.2 1.3 3.8 2.5 1 AJ U U U 5.2 7AJ SW-3 17-Mar-21 U U 27 U U 1.1 0.35J 2.9 0.57 0.96J U U U U 8.6J SW-3 23-Sep-21 0.52BJ 1.1 40 0.095J U 2.3 1.3 5.8 3.7 1.8J U U U 4.8J 17 Notes: All units are in micrograms per liter (pg/L). <4: 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 fish consumption (FC) numeric water quality standards for Class C waters per 15A NCAC 2B .0200, effective May 1, 2007, and NC DW R Surface Water Quality Standards, Criteria & Protective Values" table (dated June 10, 2019). In the absence of the INC 215, 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. AECOM 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 3 of 3 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill 3 O m 0 E N J e J E o d O £ O O E O J J E � J OI E w 'aE N m F J � E Z 2 a 0 IL x - oILO x m x 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 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 19.5J 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.OJ 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 15 52 80 U U 1.64 U 12.4J 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 U U U 9.9 0.042 0.038 3.5 MW-6 3/16/2016 30 102 64 3.4 U 1.98 U 12.8J 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 1 9/28/2016 83 81 137 U 1 33 1 5.23 U 167.6JI 170 1 1.49 2.9 598 0.06J 35J I 51J U 9.5J I 7.OJ I U 40J U 82J 26 1 0.076 0.024 1.9 MW-6 3/23/2017 54 179 110 U 35 4.41 U 62.4J 227 1.17 1.9 241J U 11J 26J I U U U U U U U 21 0.10 0.020 1.9 MW-6 9/27/2017 85 171 100 U 24 4.37 U 69.OJ 208 0.38 8.9 742 U 190J 25J U U U U U I U I 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-6 4/5/2019 - - 202.9 - - - - - - 0.63 2.6 - 340 - 1000 - - - - - - - - - - U - - - MW-6 9/4/2019 - - 156.2 - - - - - - 0.24 3.7 - 220 - 8000 - - - - - - - - - - 4.4 - - - MW-6 3/9/2020 - - 68.1 - - - - - - 0.31 2.2 - 120 - 7100 - - - - - - - - - - 13 - - - MW-6 9/2/2020 - - 143.8 - - - - - - 0.01 1.4 - 160 - 8100 - - - - - - - - - - 7.4 - - - MW-6 1 3/16/2021 30 34.4 2.0 U 1.8 U 5.2 39 0.39 0.8 110 300 2200 1200 4.8 6.OJ U U MW-6 9/22/2021 50 123 165.9 19 4.4 U 63 140 0.02 4.1 260 160 3100 1800 1 0.91 - - - - - - - - - 3.2J U U MW-6 10/7/2021 - - 193.1 - - - - - - 0.11 4.7 - - - - 1.3 - - - - - - - - - -I - - - 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 <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 <0.07 <0.05 <0.05 <0.15 <0.15 <0.07 <0.05 <0.05 75.00 0.03 0.01 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 0.290 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 11.9J 75 4.59 11.0 760 0.48J 31J 41J U 14J I U U U U U 32 0.013 0.083 3.6 MW-100S 3/16/2016 27 50 92 U U U U 6.5J 7 6.99 20.0 898 0.29J 59J 18J 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 1 8064 0.19J 290.00 59J U 9.4J 13J U I 27J U I U 65 0.022J 0.17 MW-100S 3/22/2017 22 61 1 188 U U 1.06 U 7.9J 34 5.68 15.0 2242 0.13J 24J 43J U U U U 13J U U 0.90 0.0060JI 0.036J MW-100S 9/27/2017 43 130 133 U 26 4.1E U 19.4J 78 0.50 75 4039 0.26J 56J 20J U U 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-100S 4/4/2019 - - 190.8 - - - - - - 5.26 4.2 - U - 8.8 - - - - - - - - - - U - - - MW-100S 9/4/2019 - - 229.4 - - - - - - 3.81 6.1 - 46 - 15 - - - - - - - - - - U - - - MW-100S 3/10/2020 - - 49.0 - - - - - - 6.01 3.4 - U - 8.6 - - - - - - - - - - U - - - MW-100S 9/3/2020 170.5 5.53 1.9 U 6 U MW-100S 3/16/2021 19 6.01 80.4 U U U 11 6.8 7.01 1.5 50 U 450J 5.4 0.270 U U U MW-100S 9/22/2021 31 5.31 303.6 U U U 1.1 6.0 4.36 9.8 50 1.1 U U U MW-100S 10/7/2021 300.8 3.48 7.0 1.6 Page 1 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill 3 o m 0 E n J `o = c� J E 'o G `0 a `m U £ K m E G O m o E M O v o E U O n w to J £ ai w - m' J o E Y ¢ m o � E p Z .�_. :a a g J 01 E w v > 0 w c m F - m o a d c m J � E @ o z Z '� J '� 0 ¢ a 0. o o a g m' a '` n .�. d a a R m 0. m x m a c K w y d L w d t w n 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 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 12.2J 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 1.10 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 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 7.8J 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 5.5J 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 881 0.20 0.0037J 0.012 2.2 MW-104S 3/23/2017 68 203 110 U 24 2.43 U 3.8J 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 1 22 0.18 0.048 3.0 MW-104S 3/15/2018 129 151 50 U 26 3.22 U 16.8J 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 1 90 1 25 U U 2.06 U 7.7 96 0.93 1 1.0 229 4.96 0.019J 0.16 0.080J 0.033J 0.010J U U U U 22 U U 4.4 MW-104S 4/4/2019 - - 168.1 - - - - - - 0.35 4.8 - 71 - 2700 - - - - - - - - - - U - - - MW-104S 9/4/2019 - - 211.1 - - - - - - 0.35 4.4 - 89 - 3400 - - - - - - - - - - U - - - MW-104S 3/11/2020 - - 233.0 - - - - - - 0.46 0.5 - 89 - 4200 - - - - - - - - - - 7.9 - - - MW-104S 9/2/2020 - - 197.8 - - - - - - 0.41 1.4 - 42 J - 560 - - - - - - - - - - U - - - MW-104S 3/16/2021 22 23.0 200.4 U 2.2 U 1.3 26 0.44 1.0 160 160 3100 1600 1 14 U U U MW-104S 9/22/2021 6 30.9 218.3 13 J 2.0 U 1.3 35 0.10 6.9 120 85 3100 1800 13 U U U MW-104S 10/7/2021 260.2 0.10 7.0 15 MW-106S 3/28/2012 29 32 214.3 U U 1.3 U 16.6J 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 18.5J 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 6.9J 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 9.7J 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 76 U 25 2.12 U 11.4J 81 1.31 6.1 173J 1.60J 17J U U U 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 8.6J 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 1 58 1 171 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 19.3J 436 0.43 5.8 308 U U U U U U U U U U 1 51 0.13 1 0.049 2.8 MW-106S 3/15/2018 14 25 90 U U 1.04 U 5.OJ 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 1 3.0 1 0.42 2.2 0.0089J U 0.018J U 0.016J 0.32 U U 9.6 MW-106S 4/4/2019 - - 208.3 - - - - - - 3.09 5.1 - 130 - 7.9 - - - - - - - - - - 0.0038J - - - MW-106S 9/5/2019 - - 127.5 - - - - - - 0.15 7.1 - 520 - 8700 - - - - - - - - - - 30 - - - MW-106S 3/10/2020 - - 5.5 - - - - - - 4.23 6.2 - 71 - 4.9 - - - - - - - - - - U - - - MW-106S 9/1/2020 293.4 2.23 41.1 1000 40 U MW-106S 3/16/2021 2.9 9.70 10.9 U U U 3.8 11 5.21 4.8 38 75 1860J 2.8 1.20 5.7J U U MW-106S 9/22/2021 120 141 180.3 23 6.5 U 12 160 0.15 4.5 270 220 5800 660 0.36 17 U U MW-106S 10/7/2021 131.4 0.09 4.2 0.72 Page 2 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J E E O ;o z 3 0 w Q0 Q0um E E E o m01 dc ym oxe ILw o.n Rd= m@c O e O O O OE 2 Wdc Wd 0 N0. O. am ax 0 x - O � m F 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 MW-202S 3/28/2012 13 218 65.4 - - - - - - - - - - 6579 514 - - - - - - - - - - - - - - MW-202S 9/19/2012 16 193 79.0 - - - - - - - - - - 6310 597 - - - - - - - - - - - - - - MW-202S 12/27/2012 20 300 134.1 - - - - - - 0.81 28 261 - 6091 675 - - - - - - - - - - - - - - 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 12/31/2013 20 194 33.1 - - - - - - 1.26 39 361 - 6822 857 - - - - - - - - - - - - - - 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 12/10/2015 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 1 42 - - - - - - 1.68 75 222 - 4690 431 - - - - - - - - - - - - - - MW-202S 9/29/2016 32 188 206 - - - - - - 1.62 160 192 - 4925 236 - - - - - - - - - - - - - - MW-202S 1 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 12/20/2017 21 240 64 - - - - - - 0.7 170 266 - 6127 590 - - - - - - - - - - - - - - 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 19 183 54 - - - - - - 0.82 32 317 - 7879 697 - - - - - - - - - - - - - - MW-202S 12/18/2018 18 182 79 - - - - - - 0.28 37 306 - 8466 695 - - - - - - - - - - - - - - MW-202S 4/3/2019 29 88.2 -29.2 - - - - - 100 0.19 16.1 140 - 5000 430 - - - - - - - - - - - - - - MW-202S 6/5/2019 27 115 125 - - - - - 130 0.16 11.7 140 - 3600 210 - - - - - - - - - - - - - - MW-202S 9/3/2019 - - 118.6 - - - - - - 0.51 4.4 - - 2900 140 - - - - - - - - - - - - - - MW-202S 3/11/2020 106 55.6 120 0.72 15.8 5000 410 MW-202S 9/1/2020 162 14.7 180 0.00 10.5 6500 600 MW-202S 3/17/2021 123 98.9 140 0.21 12.4 5600 530 MW-202S 9/21/2021 39.8 173.3 45 0.21 10.4 3700 190 Page 3 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J o E O ;o z 3 0 w Q0 Q0um e E E o m01 dc ym oxe ILw '.n Rd=m m@c O O O O Oe Wdc Wd 0 N O. m ax 0a x - O � m F 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 MW-202D 3/28/2012 7 85 161.9 - - - - - - - - - - 2873 3J - - - - - - - - - - - - - - MW-202D 9/19/2012 6 36 223.4 - - - - - - - - - - 4487 3J - - - - - - - - - - - - - - MW-202D 12/27/2012 24 135 272.2 - - - - - - 3.23 3.9 190 - 4172 49240 - - - - - - - - - - - - - - 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 12/31/2013 6 88 242.8 - - - - - - 1.84 13 80 - 3502 17J - - - - - - - - - - - - - - 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 12/20/2017 38 81 618 - - - - - - 1.09 1.9 202 - 7089 26106 - - - - - - - - - - - - - - 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-202D 12/18/2018 7 148 130 - - - - - - 0.40 8.7 143 - 7683 220 - - - - - - - - - - - - - - MW-202D 4/3/2019 8.8 60.0 8.9 - - - - - 68 0.17 8.9 60 - 6300 42 - - - - - - - - - - - - - - MW-202D 6/5/2019 8.0 60.9 327 - - - - - 69 0.09 6.5 80 - 6000 39 - - - - - - - - - - - - - - MW-202D 9/3/2019 - - 590.1 - - - - - - 0.50 1.1 - - 5800 39 - - - - - - - - - - - - - - MW-202D 3/11/2020 63.6 164.3 72 0.59 2.1 1 60 MW-202D 9/1/2020 53.8 419.4 61 0.00 7.2 5500 MW-202D 3/17/2021 54.7 167.8 62 0.75 5.1 4700 71 MW-202D 9/21/2021 56.5 630.5 64 0.29 6.5 5100 65 Page 4 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J o 3 0 e Z w d @c aau a a Q0y@ Q0 EE • Q Q ucw md e E Lwdcm twdcd o p K o O O O U O Y p°> o m 2E a :o ° m x x nyoo ` o Ca U a o ' n IL N _m `m o c a U � m F 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 MW-203S 3/28/2012 26 232 227.8 - - - - - - - - - - 3689 164 - - - - - - - - - - - - - - MW-203S 9/19/2012 25 185 147.7 - - - - - - - - - - 3265 132 - - - - - - - - - - - - - - MW-203S 12/27/2012 28 358 180.4 - - - - - - 1.64 8.9 78 - 3014 146 - - - - - - - - - - - - - - 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 12/31/2013 25 177 171.4 - - - - - - 0.74 30 75 - 3298 129 - - - - - - - - - - - - - - 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 1 515 - - - - - - 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 1 - 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 12/20/2017 25 152 84 - - - - - - 0.23 170 102 - 3020 252 - - - - - - - - - - - - - - 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 97 - 2751 115 - - - - - - - - - - - - - - MW-203S 12/18/2018 28 1 119 1 230 - - - - - - 0.56 16 1 88 - 2769 111 - - - - - - - - - - - - - - MW-203S 4/4/2019 30 18.2 12.8 - - - - - 20 0.28 17.3 58 - 2400 100 - - - - - - - - - - - - - - MW-203S 6/4/2019 27 17.0 244 - - - - - 19 0.15 19 66 - 2600.0 110 - - - - - - - - - - - - - - MW-203S 9/3/2019 - - 340.7 - - - - - - 0.71 5.7 - - 2500 120 - - - - - - - - - - - - - - MW-203S 3/12/2020 14.2 302.3 16 1.38 5.6 2700 120 MW-203S 9/1/2020 13.3 319.8 15 0.50 16.4 2700 120 MW-203S 3/17/2021 8.84 208.6 10 0.19 4.0 2700 140 MW-203S 9/21/2021 8.88 256.4 10 0.01 6.9 3000 160 Page 5 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J o E O ;o z 3 0 m £ Z w d @ a a a Q Q 'x e E E E n c o d d o m v e ._ w a E o o w R m u u 0 0 0 m d m O E e G K O O O O N =° " O a o m m 2 L' ' m m 01 W W r2 M U 0 m U H N F N O. Z J Q a m a y a x 0 x - O � m F 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 MW-205S 3/28/2012 250 378 -43.6 - - - - - - - - - - 7736 6560 - - - - - - - - - - - - - - MW-205S 9/19/2012 152 92 -88.9 - - - - - - - - - - 9981 5712 - - - - - - - - - - - - - - MW-205S 12/27/2012 186 337 93.3 - - - - - - 1.38 340 518 - 7052 6020 - - - - - - - - - - - - - - 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 12/31/2013 161 226 -48.6 - - - - - - 0.64 75 587 - 5164 5079 - - - - - - - - - - - - - - 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 9/30/2015 160 70 33 - - - - - - 0.69 460 570 - 7193 4094 - - - - - - - - - - - - - - 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 1 204 1 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 12/20/2017 192 198 -15 - - - - - - 0.12 330 616 - 4908 4874 - - - - - - - - - - - - - - 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 -35 - - - - - - 0.86 550 677 - 6916 5575 - - - - - - - - - - - - - - MW-205S 12/18/2018 234 260 41 - - - - - - 0.26 220 595 - 5741 5668 - - - - - - - - - - - - - - MW-205S 4/5/2019 130 238 -35.3 - - - - - 270 0.15 16.3 410 - 4300 5000 - - - - - - - - - - - - - - MW-205S 6/4/2019 94 247 45.8 - - - - - 280 0.14 5.5 390 - 4300 6500 - - - - - - - - - - - - - - MW-205S 9/4/2019 - - -95.8 - - - - - - 0.69 4.2 - - 5700 9400 - - - - - - - - - - - - - - MW-205S 3/10/2020 326 -109.8 370 1.01 15.2 4400 15000 MW-205S 9/2/2020 247 -66.8 280 0.01 3.1 4300 7600 MW-205S 3/17/2021 167 -108.8 190 0.10 7.5 4000 2700 MW-205S 9/21/2021 1 264 -120.3 300 0.00 5.8 4800 1600 Page 6 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J E 3 0 w Q0 Q0um E E E o m01 dc ym oxe ILw o.n Rd=m m@c O O O O Oe Wdc Wd 0 N O. m ax 0a x - O � m F 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 MW-205D 3/28/2012 69 48 269.2 - - - - - - - - - - 28J 3372 - - - - - - - - - - - - - - MW-205D 9/19/2012 94 65 34.2 - - - - - - - - - - 1998 24J - - - - - - - - - - - - - - MW-205D 12/27/2012 115 185 144.4 - - - - - - 1.66 3.6 585 - 2829 58 - - - - - - - - - - - - - - MW-205D 3/13/2013 118 34 107.2 - - - - - - - - - - 2741 5J - - - - - - - - - - - - - - MW-205D 6/26/2013 116 101 298.0 - - - - - - - - - - 2888 111 - - - - - - - - - - - - - - MW-205D 9/25/2013 113 197 69.8 - - - - - - - - - - 2402 192 - - - - - - - - - - - - - - MW-205D 12/31/2013 104 245 23.6 - - - - - - 1.34 2.3 541 - 2855 259 - - - - - - - - - - - - - - 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 12/20/2017 99 170 28 - - - - - - 0.85 10 525 - 3117 1035 - - - - - - - - - - - - - - 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 9/25/2018 102 137 -26 - - - - - - 1.09 4.5 571 - 3296 1549 - - - - - - - - - - - - - - MW-205D 12/18/2018 106 160 57 - - - - - - 1 0.79 5.4 15491 1 3158 1230 - - - - - - - - - - - - - - MW-205D 4/5/2019 110 256 -19.7 - - - - - 290 0.31 16.9 480 - 2800 2300 - - - - - - - - - - - - - - MW-205D 6/4/2019 96 282 216.6 - - - - - 320 0.18 20.5 470 - 2700 3800 - - - - - - - - - - - - - - MW-205D 9/4/2019 - - 138.1 - - - - - - 0.84 18.1 - - 2800 38 - - - - - - - - - - - - - - MW-205D 3/10/2020 273 -202.0 310 0.31 29.6 2900 6000 MW-205D 9/2/2020 220 89.6 250 0.00 26.9 2800 2500 MW-205D 3/17/2021 247 -22.0 - - - - - 280 0.12 20.4 2700 4100 - - - - - - - - - - - - - - MW-205D 9/21/2021 247 238.4 280 0.16 18.6 2800 2300 Page 7 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J o E O ;o z 3 0 Z w Q0 Q0um e E E o m01 dc ym oxe ILw o.n Rd=m m@c O O O O Oe Wdc Wd 0 N O. m ax 0a x - O � m F 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 MW-206D 3/28/2012 U 20 -123.2 - - - - - - - - - - 2349 98 - - - - - - - - - - - - - - MW-206D 9/19/2012 5 14 117.8 - - - - - - - - - - 917 178 - - - - - - - - - - - - - - MW-206D 12/27/2012 U 45 100.5 - - - - - - 1.39 9.7 174 - 1777 175 - - - - - - - - - - - - - - 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 12/31/2013 U 5 -67.4 - - - - - - 0.42 24 150 - 1809 121 - - - - - - - - - - - - - - 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 12/10/2015 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 1 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 12/20/2017 12 6 13 - - - - - - 0.68 5.3 149 - 1356 85 - - - - - - - - - - - - - - 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-206D 12/18/2018 U 5 167 - - - - - - 0.62 10 1661 1559 141 - - - - - - - - - - - - - - MW-206D 4/5/2019 3.2 106 -36.6 - - - - - 120 0.78 2.8 100 - 1400J 51 - - - - - - - - - - - - - - MW-206D 6/4/2019 2.6 115 20.5 - - - - - 130 0.17 5.4 20 - 1300J 21 - - - - - - - - - - - - - - MW-206D 9/4/2019 - - -99.4 - - - - - - 0.90 5.0 - - 1400 120 - - - - - - - - - - - - - - MW-206D 3/10/2020 106 -11.3 120 0.04 0.7 1400J 120 MW-206D 9/2/2020 106 -88.1 120 0.24 7.4 1300J 95 MW-206D 3/17/2021 106 -155.7 120 0.31 1.1 1300J 67 MW-206D 9/21/2021 115 -168.2 130 0.09 1.2 1400J 63 Page 8 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J o 3 0 £ Zw d @cd aau a a Q0y@ Q0 E • Q ¢ ucw md e E Lwdcm twdcd o p K o O O O U O Y p°> o m 2E a :o ° m x x nyoo� nO Ca U a ° a IL F _m c a U � m F 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 MW-207S 3/28/2012 17 155 232.7 - - - - - - - - - - 3169 550 - - - - - - - - - - - - - - MW-207S 9/19/2012 20 112 200.7 - - - - - - - - - - 2712 889 - - - - - - - - - - - - - - MW-207S 12/27/2012 24 265 231.0 - - - - - - 1.57 12 114 2715 635 - - - - - - - - - - - - - - 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 12/31/2013 23 169 208.5 - - - - - - 1.55 250 88 - 4203 381 - - - - - - - - - - - - - - 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 - - - - - - 1.21 330.0 105 - 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 1 181 - - - - - - 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 - 2904 360 - - - - - - - - - - - - - - MW-207S 9/29/2017 23 157 150 - - - - - - 0.38 4600 141 - 27466 4143 - - - - - - - - - - - - - - MW-207S 12/20/2017 28 156 223 - - - - - - 0.57 534 107 - 17995 2560 - - - - - - - - - - - - - - MW-207S 3/15/2018 21 142 122 - - - - - - 1.68 380 94 - 3275 322 - - - - - - - - - - - - - - MW-207S 6/6/2018 22 6 80 - - - - - - 0.77 230 137 - 3387 234 - - - - - - - - - - - - - - MW-207S 9/25/2018 23 132 299 - - - - - - 1.19 120 103 - 2008 99 - - - - - - - - - - - - - - MW-207S 12/18/2018 8 1 128 1 171 - - - - - - 1.80 65 1 75 - 1046 124 - - - - - - - - - - - - - - MW-207S 4/4/2019 23 22.2 21.7 - - - - - 25 0.69 5.8 52 - 1500J 120 - - - - - - - - - - - - - - MW-207S 6/4/2019 25 23.1 22.4 - - - - - 26 0.6 4.7 88 - 1900J 81 - - - - - - - - - - - - - - MW-207S 9/5/2019 - - 227.2 - - - - - - 2.21 4.1 - - 1900J 110 - - - - - - - - - - - - - - MW-207S 3/12/2020 22.2 283.6 - - - - - 25 2.73 2.6 110J 70 O 7 3 - - - - - - - - - - - - - - MW-207S 9/2/2020 15.1 182.7 17 1.79 2.6 22 MW-207S 3/17/2021 18.6 245.7 21 0.33 5.1 1200J 100 MW-207S 9/23/2021 17.7 238.1 20 0.95 4.3 2000 100 Page 9 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J E 3 0 w Q0 Q0um e E E o m01 dc ym oxe ILw o.n Rd=m m@c O O O O Oe Wdc Wd 0 N O. m ax 0a x - U � m F 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 MW-207D 3/28/2012 8 18 171.1 - - - - - - - - - - 5646 76 - - - - - - - - - - - - - - MW-207D 9/19/2012 8 18 160.2 - - - - - - - - - - 1952 37J - - - - - - - - - - - - - - MW-207D 12/27/2012 5 54 596.8 - - - - - - 10.04 3.0 189 - 2321 9J - - - - - - - - - - - - - - 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 12/31/2013 6 8 61.7 - - - - - - 1.96 65 170 - 2005 32J - - - - - - - - - - - - - - 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 2.8J - - - - - - - - - - - - - - MW-207D 3/16/2016 7 10 91 - - - - - - 2.80 13.0 175 - 919 U - - - - - - - - - - - - - - MW-207D 6/22/2016 9 10 1 71 - - - - - - 8.24 12 197 - 1006 3.5J - - - - - - - - - - - - - - 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 24J - - - - - - - - - - - - - - MW-207D 9/29/2017 10 12 132 - - - - - - 0.24 2.3 182 - 1027 152 - - - - - - - - - - - - - - MW-207D 12/20/2017 7 9 213 - - - - - - U 7.1 195 - 1140 87 - - - - - - - - - - - - - - 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 1 7 1 212 - - - - - - 0.85 4.5 202 - 1105 49 - - - - - - - - - - - - - - MW-207D 12/18/2018 6 8 138 - - - - - - 0.16 7.0 194 - 1146 20 - - - - - - - - - - - - - - MW-207D 4/4/2019 8.3 150 -23.3 - - - - - 170 0.84 2.3 170 - 0.95J 110 - - - - - - - - - - - - - - MW-207D 6/4/2019 5.5 123 19.9 - - - - - 140 0.85 3.1 170 - 0.87 J 2.9 - - - - - - - - - - - - - - MW-207D 9/5/2019 - - -88.7 - - - - - - 1.23 4.3 - - 1000 J 54 - - - - - - - - - - - - - - MW-207D 3/12/2020 150 6.4 - - - - - 170 1.54 0.6 U 98 - - - - - - - - - - - - - - MW-207D 9/2/2020 96.9 14.4 110 3.33 2.8 U 2.3 MW-207D 3/17/2021 123 18.0 140 0.06 0.6 890J 140 MW-207D 9/23/2021 123 5.5 140 0.14 0.7 1100J 5.1 Page 10 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J o 3 0 £ m o o £ Z w d @ a a a Q Q d d 'x E E E n - c •� c c Q Q u o y 0 m c c y 0 w a E _ ' > o w R m '� u g 0 0 0 m d o o E `o p K o O O O U O ''n w° - Y p .° a 0 - m o c m o m 0a 2 c x x w w n n = U c0 a m U m' Q m g w a z J ¢ o o m' n d m 0 _ w _ _ `m o c a IL U � m F 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 MW-208S 3/28/2012 125 232 325.1 - - - - - - - - - - 3171 5046 - - - - - - - - - - - - - - MW-208S 9/19/2012 124 242 89.5 - - - - - - - - - - 4287 12804 - - - - - - - - - - - - - - MW-208S 12/27/2012 154 375 114.6 - - - - - - 1.01 1200 595 - 11928 14051 - - - - - - - - - - - - - - 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 12/31/2013 126 298 106.9 - - - - - - 0.53 800 554 - 6348 16175 - - - - - - - - - - - - - - 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 1 241 1 172 - - - - - - 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 12/20/2017 96 214 155 - - - - - - U 350 386 - 4584 14584 - - - - - - - - - - - - - - MW-208S 3/15/2018 84 184 96 - - - - - - 0.77 900 275 - 5125 11141 - - - - - - - - - - - - - - MW-208S 6/6/2018 81 143 84 - - - - - - 1.14 240 361 - 4511 7378 - - - - - - - - - - - - - - MW-208S 9/25/2018 91 121 208 - - - - - - 2.03 65 323 - 2286 1068 - - - - - - - - - - - - - - MW-208S 12/18/2018 20 1 96 1 206 - - - - -1 - 1.79 9.5 1 1261 804 101 1- - - - - - - - - - - - - - MW-208S 4/4/2019 7.8 38.0 13.1 - - - - - 43 1.49 6.9 64 - 410J 380 - - - - - - - - - - - - - - MW-208S 6/4/2019 96 168 26.3 - - - - - 190 0.79 14.8 370 - 2000 7600 - - - - - - - - - - - - - - MW-208S 9/5/2019 - - 133.3 - - - - - - 1.18 4.3 - - 3200 15000 - - - - - - - - - - - - - - MW-208S 3/12/2020 56.4 251.4 - - - - - 64 3.49 2.0 1600J 1200 - - - - - - - - - - - - - - MW-208S 9/2/2020 67.9 87.0 77 2.78 8.1 U 220 MW-208S 3/17/2021 23.8 249.4 27 1.48 6.9 U 30 MW-208S 9/23/2021 212 177.4 240 0.04 6.9 3000 17000 Page 11 of 12 Table 9 Historical MNA and Direct Oxidation Results Wilders Grove Landfill J J J J OI E � E m J E J E E O ;o z 3 0 m £ Z w d @ a a a Q Q 'x £ E E E n E c '� c c Q Q u o y u m d c d c y o m v e ._ w a E ' o at R m u 2 0 0 0 m d m O E e G K Q O O O rn =° " O a o m m 2 r2 all N U 0 m U H N F N O. Z J Q a m IL y a x 0 x - O � m F 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 MW-208D 3/28/2012 30 21 294.8 - - - - - - - - - - 2477 2158 - - - - - - - - - - - - - - MW-208D 9/19/2012 63 28 124.7 - - - - - - - - - - 3620 3272 - - - - - - - - - - - - - - MW-208D 12/27/2012 57 61 144.4 - - - - - - 2.78 7.4 737 - 3704 342 - - - - - - - - - - - - - - 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 12/31/2013 22 11 40.9 - - - - - - 4.30 90 459 - 2618 193 - - - - - - - - - - - - - - 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 12/20/2017 9 4 168 - - - - - - 4.18 90 259 - 5943 328 - - - - - - - - - - - - - - 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 - - - - - - - - - - - - - - MW-208D 12/18/2018 9 7 185 - - - - - - 7.52 75 1284 - 5853 216 - - - - - - - - - - - - - - MW-208D 4/5/2019 4.7 141 56.6 - - - - - 160 7.67 2.0 180 - 4200 11 - - - - - - - - - - - - - - MW-208D 6/4/2019 4.0 150 60.4 - - - - - 170 7.04 3.2 180 - 4500 23 - - - - - - - - - - - - - - MW-208D 9/5/2019 - - 115.0 - - - - - - 7.61 3.1 - - 4000 29 - - - - - - - - - - - - - - MW-208D 3/12/2020 - 141 193.1 - - - - - 160 4.91 3.7 - - 5400 200 - - - - - - - - - - - - - - MW-208D 9/2/2020 - 133 21.5 - - - - - 150 4.57 4.9 - - 4000 12 - - - - - - - - - - - - - - MW-208D 3/17/2021 - 132 129.4 - - - - - 150 5.25 6.9 - - 3800 12 - - - - - - - - - - - - - - MW-208D 9/23/2021 - 141 148.0 - - - - - 160 4.77 7.1 - - 4200 10 - - - - - - - - - - - - - - Notes: All units are In micrograms per liter (pWL), except where Indicated. NE: No standard established '--.': Not analyzed <#: Indicates the analyte was analyzed for, but not detected at the associated limit. BOD: Biochemical oxygen demand COD: Chemical oxygen demand DO: Dissolved oxygen J. Estimated value MWL: Milligramperliter mv: Millivdts nM: Nanomole NTU: Nephelometic turbidity unit ORR Oxidation-reduction potential TOC: Total organic carbon U: Not detected Bdd concentrations exceed the NC 2L Groundwater Protection Standards, effective April 2013. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 12 of 12 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 20 6.3 2360 17 6.3 1322 19 6.4 2640 13 MW-3 5.9 762 18 5.7 709 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 79 19 5.3 79 19 5.5 105 18 5.7 85 19 5.3 104 13 MW-6 6.1 1311 18 6.1 1176 17 6 1090 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 6 722 17 5.4 267 19 6.3 221 17 5.6 271 19 5.6 291 17 1 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-13 -- -- -- - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-14 - - - - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-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 6.0 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-101 D 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 6 758 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 MW-201S -- -- - - - -- 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 1 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 7.4 578 15 SW-1 7 325 19 6.9 248 24 6.5 105 20 7.3 885 20 6.7 111 11 6.7 217 20 7.3 128 8 SW-2 6.9 255 16 7.1 121 24 6.6 151 21 7.4 193 21 6.5 127 13 6.7 117 20 7.4 185 9 SW-3 7 250 17 6 ; 118 24 6.6 156 21 6.6 209 20 6.4 266 11 6.7 120 20 7.1 196 12 Page 1 of 5 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 Monitoring Well 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) 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 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 MW-3 6.0 740 18 5.7 607 22 6.0 604 15 6.0 728 22 6.0 461 16 5.6 428 22 MW-4 5.2 116 19 5.2 70 20 5.3 100 18 5.3 88 20 5.5 470 18 4.9 74 19 MW-6 6.2 206 15 6.2 446 21 6.1 286 18 6.3 738 19 6.4 570 16 6.2 568 21 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 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 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 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 MW-13 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-14 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-100S 5.7 87 15 5.5 176 22 5.6 43 17 5.8 346 21 5.8 76 15 5.7 168 20 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 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 MW-102S 5.6 308 18 5.9 537 21 5.9 472 19 6.0 697 21 6.1 582 18 5.8 446 23 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 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 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 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 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 MW-201S 5.4 141 15 5.6 171 21 5.7 240 15 5.7 191 19 6.4 180 15 5.5 140 17 MW-202S 6.1 558 15 6.0 545 21 6.3 555 16 5.5 198 21 6.8 493 15 5.4 176 19 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 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 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 MW-205S 6.0 1042 14 6.4 1104 22 6.2 1052 17 6.4 842 21 7.1 1145 13 6.2 587 19 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 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 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 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 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 MW-208D 7.3 445 16 7.4 559 19 7.5 420 19 7.3 379 17 6.1 395 16 7.3 326 16 SW-1 6.5 1337 20 -- -- -- 6.8 289 18 -- -- -- 7.6 127 14 -- -- -- SW-2 7.1 236 27 6.9 114 23 7.1 122 20 7.3 240 24 6.9 176 16 7.4 182 21 SW-3 6.9 262 24 7.0 108 23 6.9 143 20 7.4 182 23 7.1 180 15 7.2 179 21 Page 2 of 5 Table 10 Historical Field Parameters Wilders Grove Landfill Sampling Date: 3/14/2018 - 3/15/2018 9/20/2018 - 9/25/2018 4/3/2019 - 4/5/2019 9/3/2019 - 9/5/2019 3/9/2020 - 3/12/2020 8/31/2020 - 9/3/2020 Monitoring Well 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) MW-1 5.7 109 16 5.3 103 19 5.37 113 19.36 5.37 140.8 24.2 5.75 122 16.2 5.12 122.2 22.9 MW-2 6.6 982 16 6.4 1165 20 6.29 1570 15.42 6.48 1746 22.3 6.75 2134 15.6 6.58 1650 27.0 MW-3 6.2 386 15 5.8 407 21 5.89 47 21.20 6.13 619 22.8 6.51 553 18.1 6.07 589.1 21.3 MW-4 5.3 67 19 5.0 90 20 5.80 104 18.13 4.67 86 13.67 4.86 102.2 19.0 4.78 133.2 20.1 MW-6 6.3 922 15 6.3 563 18 5.48 137 15.23 6.31 701 20.3 6.98 728 16.9 6.22 647 20.5 MW-8 5.6 152 16 5.2 221 19 5.34 143 18.55 5.37 179.5 23.1 5.75 230 15.8 5.54 208.0 20.8 MW-9 5.5 382 15 5.1 404 18 5.09 419 13.94 5.24 572 21.21 5.44 531 18.7 5.08 582.6 24.1 MW-10** -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- MW-11 5.8 168 16 5.4 169 20 5.81 498 15.08 6.24 666 22.1 6.94 844 16.6 6.34 882.7 21.7 MW-12 5.6 135 20 5.4 196 21 5.80 481 17.19 6.02 577 25.0 6.30 357 15.7 6.79 438.1 21.5 MW-13 -- -- -- -- -- -- -- -- -- 6.14 652 21.9 6.03 417.3 15.6 6.15 566.8 21.9 MW-14 -- -- -- -- -- -- - 5.44 387.5 20.2 5.20 812.3 18.6 5.59 494.9 21.6 MW-15 -- -- -- -- -- -- -- -- -- 5.29 65 22.16 4.75 61.8 19.3 4.91 81.8 20.9 MW-100S 5.7 66 16 5.2 33 18 5.34 34 16.42 5.39 79.7 24.7 5.62 47 15.7 5.22 33.3 21.1 MW-100D 6.4 718 16 6.2 905 19 6.12 1737 18.38 6.38 1696 22.6 6.62 1690 16.8 6.33 1400 22.9 MW-101 D 7.2 147 15 6.5 356 18 6.70 481 14.29 6.83 454.1 28.3 6.77 492 18.4 6.77 548 28.2 MW-102S 6.2 519 17 6.1 633 21 5.24 161 15.17 5.96 500 22.44 6.00 570.0 18.9 6.06 538.1 24.7 MW-103S 6.2 145 15 5.6 238 18 5.29 232 18.17 5.87 283 18.37 6.28 286 17.7 5.63 236.0 19.8 MW-104S 6.2 928 21 6.3 395 22 5.59 289 18.93 5.79 294.3 23.8 5.36 294.4 18.9 5.29 136.9 24.5 MW-104D 6.3 195 20 6.0 358 21 5.90 420 20.63 6.11 454.0 23.1 5.98 433.3 18.2 6.07 457.6 25.7 MW-105S 5.3 76 18 5.1 109 21 5.41 87 20.14 5.18 92 23.60 4.91 92.7 20.1 4.54 120.4 22.2 MW-106S 5.8 135 12 5.4 107 22 5.44 104 12.73 6.22 1247 22.2 6.11 83 12.7 5.43 40.1 24.1 MW-201S 5.2 93 16 5.4 170 18 5.69 203 15.89 5.62 163 18.21 5.21 202.7 16.6 5.32 203.2 17.8 MW-202S 5.6 418 15 6.0 531 21 6.35 305 17.00 5.61 182 20.34 5.87 309.1 17.3 5.93 441.4 19.4 MW-202D 5.7 115 14 5.8 186 22 6.14 168 17.11 5.86 172 19.44 5.47 168.2 17.6 5.66 167.9 19.7 MW-203S 5.4 83 16 5.1 136 20 5.54 132 18.48 5.35 138 20.85 4.96 137.0 18.0 5.13 141.6 20.9 MW-204S 5.1 85 16 4.9 160 20 5.68 120 15.67 5.49 256.9 21.0 5.15 214.6 17.0 5.88 516.6 17.8 MW-205S 6.0 396 13 6.4 988 21 7.06 866 13.72 6.66 1076 20.89 6.51 1136 14.5 6.43 999 20.7 MW-205D 6.0 402 13 6.3 764 20 6.92 855 14.91 6.41 848 20.37 6.33 763 15.3 6.40 758 21.1 MW-206D 6.8 104 16 7.3 303 18 7.00 250 13.43 7.65 262 24.34 7.26 236.6 18.9 7.38 237.1 26.6 MW-207S 5.0 89 17 5.2 140 20 5.89 119 14.35 5.46 143 20.81 5.13 113.5 15.4 5.06 123.7 23.4 MW-207D 6.7 128 18 6.7 339 19 7.67 333 16.87 7.50 344 20.72 7.21 307.6 15.7 7.54 323.7 23.0 MW-208S 5.7 186 17 5.9 533 21 6.35 140 13.40 6.16 802 19.15 5.90 398.3 14.3 5.89 368.2 21.7 MW-208D 6.5 161 17 7.6 395 18 6.43 332 14.87 8.00 345 22.09 6.38 309.6 15.6 7.84 347.4 26.9 SW-1 7.5 61 11 6.6 94 1 24 -- -- -- -- -- -- -- -- -- -- -- -- SW-2 6.5 109 10 6.7 80 25 -- - -- -- - - - - - -- -- SW-3 7.1 110 10 6.7 79 25 -- - -- -- - - - - - -- -- Page 3 of 5 Table 10 Historical Field Parameters Wilders Grove Landfill Sampling Date: 3/15/2021-3/17/2021 9/20/2021-9/23/2021 10/7/2021 Monitoring Well Designation pH Conductivity Temp. pH Conductivity Temp. pH Conductivity Temp. (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) (S.U.) (µmhos/cm) (Deg. C) MW-1 5.58 129.7 14.8 5.44 150 24.7 -- - -- MW-2 6.45 2094 13.5 6.37 1828 24.0 -- -- MW-3 6.16 517.3 13.6 6.11 601.4 22.1 -- - -- MW-4 5.36 89.1 16.7 5.10 77.7 19.1 -- -- -- MW-6 5.60 241 7.9 6.26 494.3 19.0 6.32 583 18.6 MW-8 5.53 146.3 14.9 5.71 141 25.3 -- -- -- MW-9 5.17 561.1 14.0 4.91 652 21.6 -- - -- MW-10'* -- -- -- - MW-11 6.45 654.2 14.8 4.42 747 20.9 -- - -- MW-12 5.98 318.0 15.9 5.96 319.0 22.5 -- - -- MW-13 6.34 435.6 12.7 6.18 572.4 21.5 -- - -- MW-14 5.75 215.4 16.3 5.50 369.8 20.5 -- - -- MW-15 4.75 60.0 17.5 4.84 50.2 21.4 -- - -- MW-100S 5.23 33.6 13.3 4.77 135.2 21.4 5.16 152.4 19.5 MW-100D 6.50 1720 12.5 6.32 1210 21.3 -- -- -- MW-101 D 6.99 545 6.4 6.87 424.4 23.0 -- - -- MW-102S 6.13 451.4 14.9 5.95 445.4 21.5 -- - -- MW-103S 5.72 236.4 15.3 5.21 250.2 20.8 -- -- -- MW-104S 5.15 280.6 15.0 5.51 185.2 21.7 5.53 218.4 20.9 MW-104D -- -- -- 6.10 429.3 22.3 -- -- -- MW-105S 5.16 120 14.4 5.07 72.7 21.7 -- -- -- MW-106S 5.51 53.4 9.3 5.85 776 21.3 6.15 965 20.1 MW-201S 5.15 190.4 14.7 5.48 133.5 18.1 -- -- -- MW-202S 5.75 405.4 14.8 5.13 251.1 18.5 -- - -- MW-202D 5.25 184.2 15.1 5.25 179.5 18.8 -- - -- MW-203S 4.85 150.2 16.9 5.22 142.5 19.9 -- - -- MW-204S 5.14 170 15.2 5.83 400.8 18.0 -- - -- MW-205S 6.63 678 12.1 6.56 823.7 19.3 -- - -- MW-205D 6.37 767 11.7 6.18 256 19.8 -- - -- MW-206D 8.06 265 9.6 7.63 207.1 22.3 -- - -- MW-207S 5.25 95.0 13.1 5.29 121.0 18.4 -- - -- MW-207D 7.33 273.2 13.0 7.53 269.1 17.4 -- - -- MW-208S 5.62 85.8 12.2 6.05 741.8 17.7 -- - -- MW-208D 7.66 286.7 12.9 7.93 278.5 18.4 - - -- SW-1 -- -- -- -- -- SW-2 - -- - SW-3 - -- - Page 4 of 5 Table 10 Historical Field Parameters Wilders Grove Landfill Notes: ": Not sampled or data is not available 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 and was abandoned on August 30, 2018. AECOM is not responsible for data generated or tabulated prior to September 2013. Page 5 of 5 Table 11 Individual Well Mann -Kendall Analysis Results Wilders Grove Landfill Facility Name: Wilders Grove Landfill Monitoring Well PCE TCE Vinyl Chloride Benzene IA-DCB 1.2-DCP 1.1 -DC A 1.2-DCA Barium Cobalt Thallium 9201-MW1 ND ND ND ND ND ND ND ND S D PD 9201-MW2 ND ND D D D D D D D D NT 9201-MW3 ND ND NO D D ND D I NT NT NT 9201-MW4 ND ND ND ND ND ND ND ND PI S NT 9201-MW6 ND I ND D D ND D ND D S NT 9201-MW8 ND ND ND D D ND ND ND S NT PD 9201-MW9 ND ND ND ND ND ND ND ND I I D 9201-MWll ND ND ND I S ND ND I NT NT NT 9201-MW12 ND ND ND S D ND D I PI NT D 9201-100S ND ND ND ND D ND ND PI D D D 9201-102S ND NT ND D D D D I NT D D 9201-103S ND ND ND ND ND ND ND ND D D PD 9201-104S ND ND D D D D D I D D S 9201-105S D D ND D D D D I I NT S 9201-106 ND ND ND ND NT ND S ND NT NT S 9201-201S ND ND ND ND ND ND ND ND I I S 9201-202S I NT ND ND ND ND D ND D D ND 9201-203S NT NT ND D D ND D I S D NT 9201-204S S ND D NT PI PD D I NT S S 9201-205S I ND ND NT NT ND S I D NT NT 9201-207S D D ND ND PD ND D ND D D S 9201-208S ND ND ND ND NT ND D PI D D ND 9201-100D PI ND D D D D D D D D NT 9201-101D S D ND ND S ND NT ND I I S 9201-104D D D S S PD S PD S I I NT 9201-202D NT NT ND I I D NT I I S ND 9201-205D NT S S NT S D D PI NT I S 9201-206D ND ND ND ND ND ND ND ND NT D ND 9201-207D D D D D S D I I D NT ND 9201-208D ND ND ND ND D ND D ND D PD S 9201-SW1 ND ND ND NT I ND NT ND I I S 9201-SW2 ND ND ND ND ND ND ND ND NT NT S 9201-SW3 ND ND ND ND ND ND ND ND NT NT S Notes: Data analyzed using MAROS Version 3.0 Data analysis period is from September 2012 to September 2021 and includes the following analytes: tetrachloroethene (PCE), tricloroethene (TCE), vinyl chloride, benzene, 1,4- dichlorobenzene (1,4-DCB), 1,2-dichloropropane (1,2-DCP), 1,1-dichloroethane (1,1-DCA), 1,2-dichloroethane (1,2-DCA), barium, cobalt, and thallium. I = increasing; PI = probably increasing; S = stable PD = probably decreasing; D = decreasing; NT = no trend ND = not detected Bolded and shaded cells are either increasing or probably increasing and have recent concentrations above State Groundwater Quality Standards (GQS) (15A NCAC 02L.0202, updated April 1, 20132L) or Interim Maximum Allowable Concentration (IMAC) standards. Bolded cells are either increasing or probably increasing with recent concentrations below Stale GQS or IMAC standards Page 1 of 1 Table 12 Bulk Plume Mann -Kendall Analysis Results Wilders Grove Landfill Facility Name: Wilders Grove Landfill SHALLOW WELLS Constituent Zeroth Moment First Moment Second Moment X Second Moment Y Tetrachloroethylene PD I S D Trichloroethylene D I S D Vinyl Chloride D NT I I Benzene S I S NT 1,4-Dichlorobenzene PD PI D NT 1,2-Dichloropropane D S I I 1,1-Dichloroethane D I I PI 1,2-Dichloroethane I I I I Barium NT I S S Cobalt NT I D D Thallium PD PD I PI DEEP WELLS Constituent Zeroth Moment First Moment Second Moment X Second Moment Y Tetrachloroethylene S NT S S Trichloroethylene NT S S PD Vinyl Chloride S PI PD NT Benzene I I D NT 1,4-Dichlorobenzene S I D I 1,2-Dichloropropane D S NT NT 1,1-Dichloroethane D NT D I 1,2-Dichloroethane S NT S NT Barium I S NT S Cobalt I D NT D Thallium I NT S S Notes: Data analyzed using MAROS Version 3.0 Data analysis period is from September 2012 to April 2019 1 = increasing; PI = probably increasing; S = stable PD = probably decreasing; D = decreasing; NT = no trend Shaded cells are either increasing or probably increasing. Surface water samples were not utilized in this analysis. Page 1 of 1 Corrective Action Evaluation Report Figures AECOM 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 t v E m ID N J W 0 m rn 3 v vi c O w W N O N 0 N L a cN U Q z 0 U H Z 0 N I 0 N I O) I 3 0 U rn U- I N c Iu L U v 0 CL Ix v v c c v_ cN N Cl N a a� NI 0o i ca Cl N co Cl Z U A 0 U) U J a (N t v w 0 U c 0 U N v co c a o_ N N O N pZUR/Mul 3/011 1 I.,I � 1'1 '•1 1 1 1 1 1• 1• 1 1 -�■Ili ( �i� x, -� / , _ �'l ✓" ` OldCEO 0 RE w- NN 1 /fir• __ EWA 9 -s . ✓� �► gum •�, ■ / �� s � a �� �_ � „�'a 11A � � I�� ��� � . ��� r r ► � .. 1 1 1 1 1 1 1 1 1 IL SO II ��'-,►='r<<l!l'���"� ��,', /=. (\ham ! • Ir- / , �� 1 • �SL ; =" --� - �� FA V �... "/ A� `!. ��►ter ��. • �� � ■ � In Ira g INNLRI OLIN ME Ell IDIOM � r..• � .�` !,� �, III - _� � � � �i �. � .......,. 1 �' 11 �_�,—■��� Aim % / �1 � I � rj 11 1 1 11 r m ' • 1 - mowm� 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 �. 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 aecom.com