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s <br /> Geo-1. i <br /> os <br /> ASSOC 1A ES <br /> � <br /> Geologists,Hydrogeologists and Engineers <br /> October 20, 2010 <br /> JN: 2010-0013 <br /> Mr. Ross Atkinson <br /> Central Valley Regional Water Quality Control Board <br /> 11020 Sun Center Drive, Suite 200 <br /> Rancho Cordova, CA 95670-6114 <br /> GROUNDWATER TREATMENT FACILITY MONITORING REPORT <br /> THIRD QUARTER 2010 <br /> FORWARD LANDFILL <br /> SAN JOAQUIN, CALIFORNIA <br /> INTRODUCTION <br /> On behalf of Forward Inc. (Forward), Geo-Logic Associates (GLA) is submitting this <br /> summary report for the Forward Landfill groundwater treatment facility(GTF)to fulfill <br /> the requirements established by Waste Discharge Requirements(WDRs)Order No. R5- <br /> 2003-0080. <br /> The Forward Landfill is an active facility located at 9999 South Austin Road in Manteca, <br /> California. Following detection of volatile organic compounds (VOCs) in groundwater, a <br /> Corrective Action Program (CAP) was implemented at the site in 1994 which currently <br /> includes five groundwater extraction wells (EW-1, EW-2, EW-3, EW-3B, and EW-4) <br /> that pump groundwater through an air stripper treatment system to remove VOCs. The <br /> treated groundwater is discharged to an infiltration pond north of the Austin Road Unit of <br /> the Forward Landfill. Included herein is a summary of the water quality monitoring <br /> results for the GTF at the Forward Landfill for the second quarter 2010. <br /> CAP MONITORING PROGRAM RESULTS <br /> Under WDR Order No. R5-2003-0080, effluent monitoring consists of a continuous <br /> record of flow; monthly analysis of pH, specific conductance (EC), and VOCs; quarterly <br /> analysis for total dissolved solids(TDS); and annual analysis of 24 metals. In addition, <br /> influent is monitored semiannually(during the second and fourth quarters) for pH, EC, <br /> turbidity, and VOCs. Del-Tech Geotechnical Support Services (Del-Tech) performs the <br /> operation and maintenance (O&M) duties and performs bimonthly inspections for the <br /> Forward Landfill GTF. The results of the bimonthly inspections are presented below and <br /> summarized in Table 1; the field monitoring logs and laboratory results are attached. <br /> Operational Summary- Between June 22 and September 30, 2010, the CAP system <br /> treated approximately 15,605,400 gallons of groundwater at an average flow rate of 106 <br /> gallons per minute, or 153,205 gallons per day(Table 1). During the monitoring period, <br /> the GTF removed approximately 5.57 pounds of VOCs. During the July 7, 2010 <br /> 16885 W. Bernardo Drive, Suite 305, San Diego, California 92127 Phone: (858)451-1136 FAX: (858)451-1087 <br />