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Ankh GeoLogic Associates Geologists, Hydrogeologists and Engineers October 30, 2006 JN: 2003-021 Mr. Ross Atkinson Central Valley Regional Water Quality Control Board 11020 Sun Center Drive, Suite 200 Rancho Cordova, CA 95670-6114 THIRD QUARTER 2006 WATER QUALITY MONITORING REPORT FORWARD LANDFILL SAN JOAQUIN COUNTY, CALIFORNIA On behalf of Forward Incorporated(Forward), GeoLogic Associates(GLA)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 R5-2003-0049,which combines operations at the former Austin Road and Forward Landfills under a single permit. The combined landfills will be referred to as the Forward Landfill hereafter. The Forward Landfill is regulated by two monitoring programs including the RWQCB WDR Order No. R5-2003-0049; and the Department of Toxic Substances Control(DISC)Post Closure Permit No. CAD 990794133. A separate annual report is submitted to the DTSC in March each year addressing the Post Closure Permit Requirements and focuses on Waste Management Unit(WMU)A. However, all analytical data are provided in each report and the requirements of each program are being satisfied. This report presents quarterly sampling results for the reporting period dating from July 1 to October 31,-2006(Third Quarter 2006). At the Forward Unit, environmental monitoring for the Third Quarter 2006 yielded results similar to previous quarters. During this monitoring period, 15 new historical intrawell maximum values were measured,including seven first-time volatile organic compound(VOC) detections, in samples collected from groundwater monitoring wells. However, all seven first-time VOC detections are confirmed laboratory contaminants. Excluding confirmed laboratory contaminants, one or more trace-level VOCs were measured in wells MW-10,MW-14, and MW-21. In addition, PCE was measured above the PQL in the sample collected from well MW-14. Concentration limits(CLs)were exceeded for one or more monitoring parameters in samples from 12 wells. In accordance with the RPCMP, the seven wells with exceedances of CLs for impact constituents will be resampled in November 2006 during the third quarter 2006 sampling event and a second sample will be collected in December 2006. The results of the two retests will be submitted to DTSC and RWQCB under separate cover. Historically, similar exceedances of inorganic constituent CLs have been measured and verified in samples collected from detection monitoring program(DMP)wells at the Forward Unit, followed by no release demonstrations (NRD), which have concluded that the inorganic CL 16885 W. Bernardo Dr., Suite 305, San Diego, CA 92127 Phone: (858) 451-1136 Fax: (858) 451-1087