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-R&L Business Manage,'nt -4- May 34, 2408 <br /> Claim No. 8828 w <br /> F. Recommendation: Based on the following criteria, the Fund recommends this <br /> site be considered for closure providing the potential-for soil vapor migration is <br /> assessed and determined safe for prescribed site activities; public participation . <br /> and fee title notifications are conducted, and the monitoring wells are <br /> appropriately abandoned. <br /> • . The source of the UST release has been identified and.removed.. <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 /> Section 2655). <br /> • Contaminants remaining in the vadose zone cannot migrate in sail vapor <br /> or leach at concentrations that would cause'groundwater to exceed water <br /> quality.objectives. rr + <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 iri groundwater do'not-create or threaten to create <br /> risk to human health and safety, or to future beneficial use(s) 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 <br /> shrinking, and'Water:Quality Objectives will be achieved in a few years. . <br /> 3� <br /> K k Larson, P.G. Date Robert TromrTW', �C:H.G. : Date " <br /> Technical Review Unit Chief-Technical Review Unit <br /> (9'1'6)`341_5663_' ..... . - <br /> (916)%341-'5684 , <br /> California Ea vironmedta]Protection Agency <br /> Q:G Recy kd Paper <br />