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Water Quality Monitoring Report Forward Landfill EXECUTIVE SUMMARY 1101 Forward Incorporated (Forward) is pleased to submit the subject water quality monitoring report for the Forward Landfill in compliance with reporting requirements of the Regional Water Quality Control Board - Central Valley Region (RWQCB) Waste Discharge Requirements (WDRs) Order Number RS -2014-0006. This report presents quarterly sampling results for the reporting period from October 1 to December 31, 2014 (fourth quarter 2014) and also provides an annual summary of the results from the 2014 monitoring year. According to the Forward Landfill Operations Manager, standard observations have been conducted weekly during the reporting quarter. The Forward Landfill Operations Manager also reported that no surface water was discharged from the facility during the reporting period. During the fourth quarter 2014 monitoring period and over the 2014 monitoring year, no notices of violation were issued by the San Joaquin County Environmental Health Department or RWQCB, and no changes have been made to the groundwater monitoring systems. For the Forward Unit, environmental monitoring for the fourth quarter 2014 and over the past year yielded results consistent with historical groundwater conditions. During the fourth quarter 2014 monitoring period, a non -statistical indication of release was identified at well MW -2A as a result of one volatile organic compound (VOC) (diisopropyl ether) measured at a quantifiable concentration. No other VOCs were measured above a quantifiable concentration in groundwater samples collected during the fourth quarter 2014 monitoring period. For the inorganic monitoring parameters, no concentration limits (CLs) were exceeded during the monitoring period. Surface water samples collected from the upstream and downstream surface water monitoring stations during the fourth quarter 2014 monitoring period are generally consistent with each other; no VOCs were detected and no CLs were exceeded. Of the vadose zone monitoring points, two VOCs were detected in soil -pore liquid samples and approximately 200 gallons of liquid was pumped from pan lysimeter WMU-D01N. Groundwater quality conditions beneath the Austin Unit for the fourth quarter 2014 and over the past year yielded results consistent with historical groundwater conditions. During the fourth quarter 2014 monitoring period, of the Detection Monitoring Program (DMP) wells, although it is recognized that well AMW-6 should be identified as a Corrective Action Program (CAP) well, a non - statistical indication of release was identified at well AMW-6 as a result of the detection of three VOCs (two quantifiable concentrations and one estimated -trace concentration). No other VOCs were detected in the DMP wells. For inorganic monitoring parameters no CLs were exceeded. For the CAP/evaluation wells, 17 wells reported one or more VOCs exceeding a practical quantitation limit (PQL), with CAP well AMW-1 having the greatest number of VOCs (11), including nine measured above a PQL. Surface water samples collected from the upstream and downstream surface water monitoring stations during the fourth quarter 2014 monitoring period are generally consistent with each other and no VOCs were detected. With the exception of FU -04W all of the lysimeters were reported dry, though, there was insufficient soil pore liquid from FU -04W for analysis. To mitigate impacts at the Austin Unit, the groundwater treatment facility (GTF) pumped 23.9 million gallons of groundwater from the extraction wells resulting in the removal of 1.19 0 pounds of VOCs. M:\ 2014.0012\ExecSum 4Q14.docx E-1 1/28/2015, Rev. 0