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Jess Cervantes . -4- May 21' ,.2008 <br /> Claim No. 8509 <br /> . . Free-phase product in groundwater has been-removed to the full extent <br /> practicable, in accordance with the UST Regulations (Title 23, CCR, <br /> i Section 2655). <br /> i Contaminants remaining in.,the vadose zone cannot migrate in soil vapor <br /> or leach at concentrations that would cause groundwater to exceed water <br /> quality objectives. I <br /> • There are no.existing water supply wells, surface waters.or other <br /> receptors threatened.by the remaining contaminants in soil or <br /> ! groundwater. ' <br /> • Pollutants remaining i.n groundwater do not create or threaten to create <br /> risk to human health and safety, or to future beneficial uses) of the <br /> 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 current or anticipated uses of the impacted groundwater. . <br /> within the timeframe projected to meet water quality objectives. <br /> In summary, the remaining mass of hydrocarbons in-soil and groundwater is <br /> minor, the extent of contamination is defined, the groundwater plume is shrinking, <br /> and Water Quality Objectives will be achieved in a few years. " <br /> Kirk-Larson, P.G. Date Robert Trommer,.C.H.G. I Date <br /> Technical Review Unit �;. : -, ,. Chief,-Technical Review Unit <br /> (916) 341-5663 (916) 341-5684', <br /> r California Environmental Protection Agency <br /> D�a'Recycled Paper <br />