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FORWARD LANDFILL 9999 S.Austin Road Manteca, CA 95336 (209) 982-4298,Fax(209) 982-1009 January 28,2008 JN: 2008-0010 Mr. Ross Atkinson Central Valley Regional Water Quality Control Board 11020 Sun Center Drive, Suite 200 Rancho Cordova, CA 95670-6114 SUBJECT: FOURTH QUARTER 2008/ANNUAL 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(RIYVQCB)Waste Discharge Requirements(WDRs) Order Number R5- 2003-0049,which combined 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 (DTSC)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( MU)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 October I to December 31,2008 (fourth quarter 2008),and also summarizes the monitoring results obtained for the 2008 monitoring year. For the Forward Unit, environmental monitoring for the fourth quarter 2008 yielded results similar to previous quarters. Five new historical intrawell maximum values were measured in samples collected from groundwater monitoring wells. Estimated trace-level volatile organic compounds(VOCs)were measured in wells MW-10 and W-14; while one VOC tetrachloroethene was measured above its practical quantitation limit(PQL)in well MW-14. In addition, the semi-volatile organic compound (SVOC)bis(2- etliylhexyl)phthalate(a suspected laboratory contaminant)was measured at a trace concentration in well MW-24. Concentration limits(CLs)were exceeded for one or more monitoring parameters in samples fi-orn 12 wells. In accordance with the Revised Post-Closure Maintenance Plan (RPCMP), seven wells with exceedances of CLS that are potential impact constituents will be resampled in February 2009(during the first quarter 2009 sampling event), and a second independent sample will be collected in March 2009. The results of the two retests will be submitted to DTSC and RWQCB under separate