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MPDS UN6983-15 <br /> August 18 1997 <br /> Page]i of 15 <br /> • <br /> Table 2 <br /> Summary of Laboratory Analyses <br /> Water <br /> Eteva tion TPH as Ethyl= . <br /> Wel.# twe (feet) Gaso&O, Benzeiv ` oltierte B=eile Xylwb8- .MTBE <br /> MW-13 10/20/93 <50 <05 <0 5 <0 5 <05 -- <br /> {Cont) 7/26/93 <50 <05 <05 <05 <05 -- <br /> 4/26/93 <50 <05 <05 <0 5 <05 -- <br /> 1/13/93 <50 <05 <0 5 <05 <05 -- <br /> 10/21-22/92 <50 <0 5 <0 5 <05 <05 — <br /> (MW14)tt 2/28/94 NA <50 <0 5 <05 <05 <05 -- <br /> VW-1 7116197 NA <50 <05 <05 <05 <05 <50 <br /> 1/21/97 NA <50 <05 <05 <05 <05 <5 0 <br /> 10/23/96 SAMPLED SEMI-ANNUALLY <br /> 7/24196 NA 180 19 19 16 77 130 <br /> VW-2 7/16/97 NA WELL WAS DRY <br /> 1/20/97 NA INSUFFICIENT WATER TO SAMPLE <br /> 10/23/96 SAMPLED SEMI-ANNUALLY <br /> 7124/96 NA 78,000 510 3,100 540 24,000 720 [560]t <br /> VW-3 7/16197 NA <50 <05 <05 <05 <05 14 <br /> 1121197 NA <50 <05 <05 <0 5 <05 58 <br /> 10/23/96 SAMPLED SEMI-ANNUALLY <br /> 7/24/96 NA <50 <05 <05 <0 5 <05 <50 <br /> VW-4 7/17/97 NA 670 <0 5 45 6 1 98 5 1 <br /> 1121/97 NA 3,000 <0 5 5 3 31 530 <50 <br /> 10/23/96 SAMPLED SEMI-ANNUALLY <br /> 7/24196 WELL WAS DRY <br /> § Sequoia Analytical Laboratory has identified the presence of MTBE at a level above or equal to the <br /> taste and odor threshold of 40 llg/L in the sample collected from this well <br /> * The analytical results of the ground water samples collected from monitoring wells were inconsistent <br /> with the previous analytical results for these wells Therefore, MPDS Services, Inc , resampled the <br /> monitoring wells <br /> ♦ Sequoia Analytical Laboratory reported that the hydrocarbons detected did not appear to be gasoline <br /> * The positive result for gasoline does not appear to have a typical gasoline panem <br />