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FORWARD LANDFILL 9999 S.Austin Road Manteca,CA 95336 (209)982-4298,Fax(209)982-1009 September 25, 2012 JN: 2012-0025 Mr. Ross Atkinson Central Valley Regional Water Quality Control Board RECEIVED 11020 Sun Center Drive, Suite 200 Rancho Cordova, CA 95670-6114 CC T 3 1. 2012 SUBJECT: THIRD QUARTER 2012 EWRONMEWALHMM WATER QUALITY MONITORING REPORT PRMrr/9EwCES FORWARD LANDFILL SAN JOAQUIN COUNTY, CALIFORNIA Forward Incorporated(Forward)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 combined operations at the former Austin Road and Forward Landfills under a single permit. The combined landfills are 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(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 I to September 30, 2012 (third quarter 2012). During the third quarter 2012 monitoring period,no notices of violation (NOV) was issued by the San Joaquin County Environmental Health Department. For the Forward Unit,no significant changes in the water quality analytical results were noted. During the third quarter 2012, tetrachloroethane (PCE) was measured at an estimated trace concentration in the sample collected from well MW-14. No other volatile organic compounds (VOCs)were detected in the Forward Unit groundwater monitoring wells. Concentration limits (CLs) were exceeded for one or more inorganic constituents in wells MW-2A, MW-3, MW-13, MW-14, MW-15, MW-18, and MW-19. Excluding non-impact constituents, confirmation sampling for calcium, chloride, and potassium in well MW-13; chloride in well MW-13; and for calcium, magnesium, and sodium in well MW-18 will be performed in November 2012 during the fourth quarter 2012 monitoring event, and in December 2012. The results of the confirmation sampling will be provided under separate cover.