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FORWARD LANDFILL 9999 S. Austin Road Manteca,CA 95336 (209)9824298,Fax(209)982-1009 July 26, 2011 JN: 2011-0051 Mr. Ross Atkinson Central Valley Regional Water Quality Control Board 11020 Sun Center Drive, #200 Rancho Cordova, CA 95670-6114 SUBJECT: JANUARY—JUNE 2011 FIRST SEMIANNUAL WATER QUALITY MONITORING REPORT FRENCH CAMP LANDFILL SAN JOAQUIN COUNTY, CALIFORNIA Forward, Inc. (Forward) is pleased to submit the January through June 2011 semiannual monitoring report for the French Camp Landfill, in compliance with the California Regional Water Quality Control Board - Central Valley Region(RWQCB) Waste Discharge Requirement (WDR) Order Number R5-2007-0046. This report summarizes standard observations and presents the results of surface-water, groundwater, and soil-pore gas monitoring from the semiannual (January 1 through June 30, 2011)monitoring period. Groundwater quality conditions beneath the French Camp Landfill during the monitoring period are generally similar to those observed in previous monitoring periods. A concentration limit(CL) was exceeded for one constituent in the samples collected from background well MW-6A, and compliance wells MW-913 and MW-10A. It should be noted, however, that none of the constituents that exceeded a CL exhibited a statistically significant increasing trend during the monitoring period. During the monitoring period, no volatile organic compounds (VOCs)were detected in any of the groundwater monitoring wells, and there is no indication of a release from the facility. In addition,no notices of violation or areas of concern were observed during the monitoring period. The results of water quality analyses completed for surface-water monitoring stations are generally consistent with previous results. During the monitoring period, no VOCs were detected in any of the surface water stations, and potassium was the only surface water constituent that exceeded a CL. It is believed that the CL exceedance for potassium at downstream location SW-3 may be due to a recent change in natural surface water chemistry in the vicinity of the site. With the exception of turbidity at all three surface-water samples and carbonate alkalinity at surface water stations SW-1 and SW-3, no statistically significant increasing trends were noted. Since turbidity and carbonate alkalinity exhibit statistically significant increasing trends in both upstream and downstream surface water stations, these increasing trends are unlikely to be indicative of an impact from the facility.