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Geo-LoqkA S S O C I AT E S <br /> Geologiats,Hydrogeologists and Engineers <br /> uuu <br /> ENVIRONMENT ALjApril 16, 2010 <br /> � F�F <br /> PERM[ SER 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 /> FIRST 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-313, 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 first 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 - As shown in Table 1, between December 31, 2009 and March 31, <br /> 2010, the CAP system operated continuously and treated approximately 20,658,900 <br /> gallons of groundwater at an average flow rate of 159 gallons per minute, or 228,975 <br /> gallons per day. During the monitoring period, the GTF removed approximately 2.55 <br /> 16885 W. Bernardo Drive, Suite 305, San Diego, California 92127 Phone: (858)451-1136 FAX: (858)451-1087 <br />