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Water Quality Monitoring Report <br /> Forward Landfill <br /> • 3.1.11 Corrective Action Monitoring <br /> The Groundwater Treatment Facility (GTF) at the Austin Unit has been operational since <br /> 1994 to mitigate impacts from landfill releases. Impacted groundwater is extracted <br /> from four wells (EW-1, EW-2, EW-3R, and EW-4) that pump groundwater through an air <br /> stripper treatment system to remove VOCs. Treated groundwater is discharged to an <br /> infiltration pond (constructed in 2003) north of the Austin Road Unit of the Forward <br /> Landfill. During the monitoring period, Herst and Associates (2014) calculated that the <br /> GTF treated 25.6 million gallons of groundwater and removed approximately 2.98 <br /> pounds of VOCs. Details regarding corrective action remediation system operations and <br /> performance evaluation for the second quarter 2014 are presented in Appendix C. <br /> 3.2 Summary <br /> Groundwater quality conditions beneath the Austin Unit during the second quarter 2014 <br /> monitoring period were generally similar to historical results. During the current <br /> monitoring period, no VOCs were identified at DMP wells and no CLs were exceeded. <br /> For the CAP/Evaluation wells, 16 wells reported one or more VOCs exceeding a PQL, <br /> with CAP well AMW-1 having the greatest number of VOCs (13), including nine <br /> measured above a PQL. Surface water stations and lysimeters were dry during the <br /> current monitoring period. <br /> 4.0 REFERENCES <br /> California Regional Water Quality Control Board, Central Valley Region, 2014, "Order No. <br /> RS-2014-0006 Waste Discharge Requirements for Forward Inc. and Republic <br /> Services Inc. Forward Landfill, Class ll Operation, Closure, and Corrective Action, <br /> San Joaquin County", February. <br /> CH2M Hill, 2000, "Fourth Quarter/Annual 1999 Monitoring Report, Austin Road Landfill", <br /> January. <br /> Forward, 2009, "Forward Landfill Odor Control Management Plan", April. <br /> GeoLogic Associates, 2001, "Low-Level VOC Detections in Monitoring Wells, Forward <br /> Sanitary Landfill, San Joaquin County, California, (RWQCB Case No. 2209)", <br /> February. <br /> ' 2014, "Water Quality Monitoring Report — first quarter 2014, Forward <br /> Landfill, April. <br /> M:\2014.0012\FA_2Q14rev.docx 13 <br /> 9/5/2014,Rev.1 <br />