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MPDS U N0187 11R March 18 1997 Page 4 of 5 • Table 2 Summary of Laboratory Analyses Water C`imund Water AOI)n TPH as 1�thy- Well# Date (feet) Gasdbne Benzene Toluene Bemew Xyle-nes MTBE U-5 11/8/95 -29 91 <50 <05 053 <0 5 <0 5 -- U-5 2/6196 -2847 <50 <0 5 <0 5 <0 5 <0 5 -- U-5 5/7/96 -2545 <50 <0 5 <0 5 <0 5 <05 -- U-5 816/96 -25 11 <50 <0 5 <05 <0 5 <0 5 -- U-5 11/5/96 -2495 <50 <0 5 <0 5 <05 <0 5 -- U-5 213/97 -21 55 <50 <0 5 <0 5 <0 5 <0 5 <5 0 U-6 11/8/95 -28 87 <50 <05 058 <0 5 <0 5 -- U-6 2/6/96 -2690 <50 <0 5 <0 5 <05 <0 5 -- U-6 5/7/96 -2445 <50 <0 5 <0 5 <0 5 <0 5 -- U-6 8/6/96 -2451 <50 <0 5 <0 5 <0 5 <0 5 -- U-6 11/5/96 -24 10 <50 <0 5 <0 5 <0 5 <0 5 -- U-6 2/3/97 -2020 <50 <0 5 <0 5 <0 5 <0 5 <5 0 U-7 11/8/95 -2926 12,000 1,600 44 1,500 2,400 -- . U-7 2/6/96 -27 51 580 110 <2 0 <2 0 <20 =_ U-7 5/7/96 -2491 290 34 26 20 1 5 U-7 8/6/96 -2475 280 4 1 1 5 3 4 28 -- U-7 11/5/96 -2425 130 077 12 <0 5 10 -- U-7 2/3/97 -2039 140* 070 14 <05 087 <5 0 U-8 11/8/95 -3000 170 <05 051 076 1 2 -- U-8 2/6/96 -28 25 380 75 25 5 3 84 -- U-8 5/7/96 -25 56 180 6 5 12 1 4 1 6 -- U-8 8/6/96 -2545 <50 <0 5 <0 5 <0 5 <0 5 -- U-8 11/5/96 -25 13 <50 <0 5 <0 5 <0 5 <0 5 -- U-8 2/3/97 -21 51 110* 078 <0 5 <05 1 1 <5 0 * Sequoia Analytical Laboratory reported that the hydrocarbons detected appeared to be a gasoline and non-gasoline mixture T Sequoia Analytical Laboratory has identified the presence of MTBE at a level above or equal to the taste and odor threshold of 40 µg/L 1n the sample collected from tlus well <# Non-detectable at or above stated detection limit -- indicates analysis was not performed . MTBE = Methyl tert butyl ether