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FORWARD LANDFILL 9999 S.Austin Road <br /> Manteca,CA 95336 <br /> (209)982-4298,Fax(209)982-1009 <br /> Januar 20,2014 <br /> 1 N: 2014-0012 <br /> Mr. Ross Atkinson <br /> Central Valley Regional Water Quality Control Board <br /> 11020 Sun Center Drive,#200 <br /> Rancho Cordova,CA 95670-6114 <br /> SUBJECT: JULY—DECEMBER 2014 SEMIANNUAL/ANNUAL <br /> WATER QUALITY MONITORING REPORT <br /> FRENCH CAMP LANDFILL <br /> SAN JOAQUIN COUNTY,CALIFORNIA <br /> Forward, Inc. (Forward) is pleased to submit the July through December 2014 semiannual and <br /> annual monitoring report for the French Camp Landfill, in compliance with the California <br /> Regional Water Quality Control Board - Central Valley Region (RWQCB) Waste Discharge <br /> Requirement (WDR) Order Number 115-2007-0046. This report summarizes standard <br /> observations and presents the results of surface-water, groundwater, and soil-pore gas <br /> monitoring from the semiannual (July 1 through December 31, 2014) monitoring period. This <br /> report also presents an annual summary for the site. <br /> During the monitoring period and over the 2014 monitoring year, no violations have been <br /> issued for the facility. Groundwater quality conditions beneath the French Camp Landfill during <br /> the monitoring period and over the 2014 year are generally similar to those observed during <br /> previous monitoring periods. During one or both semiannual monitoring periods in 2014, <br /> inorganic concentration limits (Cls) were exceeded for chloride in the samples from wells MW- <br /> 9B and MW-10A; for pH value at wells MW-9A and MW-10A; and for specific conductance and <br /> total dissolved solids in the sample from well MW-10A. However, none of the constituents that <br /> exceeded a CL exhibited a statistically significant increasing trend. <br /> With the exception of the detection of trichlorofluoromethane (TCFM) at well MW-9A and <br /> chloroform at well MW-6A, no volatile organic compounds (VOCs) were detected above a <br /> practical quantitation limit in groundwater samples collected during the 2014 monitoring year. <br /> Both TCFM and chloroform have been previously confirmed in retest samples, however, neither <br /> of these VOCs exhibited an increasing trend. Given the distance of well MW-6A from the <br /> landfill, the chloroform concentrations measured in well MW-6A are not believed to be the <br /> result of a release from the landfill. The TCFM concentrations measured in well MW-9A are <br /> well below risk-based concentrations and have been attributed to landfill gas. <br />