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IILL <br /> * Toluene was detected slightly above its MRL (50 µg/L), with a reported concentration <br /> of 51 µg/L; this concentration is well below the water quality goal of 150 µg/L <br /> established for this constituent. <br /> * Barium and molybdenum were the only dissolved metals detected; reported <br /> L concentrations for each were below their respective water quality goals. <br /> MTBE was detected in each ground water sample analyzed, at 6.4, 86 and 32 µg/L . <br /> (SB-01, SB-02 and SB-03, respectively); the water quality igoal established for MTBE <br /> :F <br /> is 35 µg/L. <br /> i <br /> * I i� <br /> Based on depth to ground water measurements collected on March 22, 1997, ground <br /> water beneath the site appears to flow in a northeasterly direction. <br /> General <br /> The elevated MTBE concentrations (above water quality goals) detected in ground water <br /> beneath the site are a potential cause of concern. The following arguments suggest that the <br /> MTBE detected in ground water beneath the Property may be the 'result of an off-property <br /> source(s): <br /> MTBE was not detected in soil samples analyzed from the Property; <br /> I'd <br /> ;F <br /> * The nature of the historic operations conducted at the south adjoining <br /> properties, as well as the substantial soil and 4ground water impact <br /> documented at these properties (notably, whee.TPH-G and toluene <br /> Cconcentrations up to 91,000 and 13,000 µglwere lreported, <br /> respectively). 1 <br /> 808-001.rpU04-29-971uIkeydata/repons 25 <br /> I� <br />