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�� - - March 24= 2009 <br /> Joe's Texaco - 1 <br /> Claim No. 12489 r <br /> • Contaminants remaining in the vadose zone cannot migrate in soil vapor or <br /> leach at concentrations that would cause groundwater to exceed water quality <br /> objectives. <br /> There are no existing water supply wells, surface waters or other receptors <br /> threatened by the remaining contaminants in soil or groundwater. <br /> Pollutants remaining in groundwater do not create or threaten to create risk to <br /> human health and safety, or to future beneficial use(s) of the groundwater. <br /> • The plume size is stable and sufficiently delineated in lateral and vertical <br /> extent and contaminant concentrations detected in groundwater show a <br /> decreasing trend with time. <br /> ;•� There are no.currentor anticipated uses of the impacted groundwater wtltn -- _`---_,-- ,-- <br /> - the timeframe projected to meet water quality objectives. <br /> In summary, the remaining mass of hydrocarbons in soil and groundwater is minor, <br /> the extent of contamination is defined, the groundwater plume is shrinking, the <br /> constituents of concern are relatively immobile, there is no risk to the public or the <br /> environment, and.Water Quality Objectives will be achieved within a reasonable <br /> period of time: <br /> UPDATED, April 2009: The Fund continues to recommend that the San Joaquin <br /> County LOP consider this site for closure. Further investigation at this site is unlikely <br /> to benefit the people of�California. <br /> Kir arson, P.G. Date Robert Trommer, C.H.G. Date <br /> Technical Review Unit Chief, Technical Review Unit <br /> (916) 341-5663 (916) 341-5684 <br /> ` F <br /> v n <br /> r <br /> California.Environmental Protection Agency <br /> ov <br /> fir}Recyded Paper <br />