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C-SHADRI FS 91.6/G W PL 7 <br /> 01/22/92 <br /> Potential ecological receptors in and around SHARPE include terrestrial <br /> vegetation, soil invertebrates, small mammals, birds, reptiles, and aquatic plants, <br /> invertebrates, and vertebrates associated with the drainage ditches. Detailed <br /> description of the risks to these receptors is included in the soils Risk Assessment, <br /> which is in preparation. Analysis of risks and threats to nonhuman receptors <br /> indicated that exposure pathways from groundwater were not complete. <br /> Although the offsite, downgradient potable drinking water wells are not <br /> contaminated at this time and a monitoring program is in place, these wells are <br /> likely to become contaminated in the future. Therefore, it is imperative to have <br /> a treatment system in place. <br /> (How the Remedy is Selected, taken from samples provided by EPA, will appear <br /> here) <br /> CLEANUP ALTERNATIVES WILL PROTECT PUBLIC HEALTH <br /> This cleanup alternative for groundwater at SHARPE will reduce any health risks <br /> posed by the site contaminants to "acceptable" levels. EPA considers an <br /> acceptable risk range to be between one in 10,000 and one in 1,000,000 excess <br /> cancers. Once the groundwater cleanup is complete, a person's risk of <br /> developing cancer as a result of exposure to groundwater would fall within or be <br /> lower than that range. With the exception of the no-action alternative, all <br /> alternatives will reduce risks to acceptable levels. <br /> SUMMARY OF ALTERNATIVES <br /> The groundwater FS for SHARPE was presented to EPA in November 1991. <br /> SHARPE, USATHAMA, CVRWQCB, DTSC, and EPA have evaluated five treatment <br /> 8 <br />