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i 40 GROUNDWATER ANALYTICAL RESULTS <br />' Groundwater laboratory analytical results are summarized in Table 1 <br /> TFHg was detected in two wells (MW-1 and MW-3) with the higher concentration detected in MW-3 <br /> at 18 milligrams per liter (mg/l) Benzene was detected in one well (MW-3) at a concentration of 43 <br /> micrograms per liter (ug/l) MTBE was detected in three wells (MW-1, MW-2 and MW-3) with <br />' concentrations ranging from 0 78 ug/l to 7 9 ug/l Other FOCs were not detected above the laboratory <br /> reporting limits in samples collected from the groundwater monitoring wells Well AS-1 is located <br /> within the source area and is screened from 40 to 45 feet below ground surface (bgs) (deeper than the <br /> monitoring wells) The groundwater sample collected from AS-1 did not contain concentrations of <br /> TFHg, BTEX, or FOCs above the laboratory reporting limits Copies of the laboratory analytical <br /> reports and chain-of-custody documents for the groundwater samples are included in Appendix C <br />' The water samples collected from domestic wells DW-2R, DW-3, and DW-4 did not contain <br /> detectable concentrations of TFHg, BTEX or FOCs Copies of the laboratory analytical reports and <br /> chain-of-custody documents for the water samples collected from the domestic wells are also <br />' included in Appendix C <br /> Project No S8643-06-01 -9- May 5 2005 <br />