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KEI-P88-1013 .QR5 <br /> August 9, 1993 <br /> TABLE 4 <br /> SUMMARY OF LABORATORY ANALYSES <br /> WATER <br /> (UNOCAL WELLS) <br /> Sample TPH as Ethyl- 1, 2-Dichloro- <br /> Date Well Gasoline Benzene Toluene benzene Xylenes ethane* <br /> 6/28/93 MW10 220 17 ND 26 0. 62 1. 2 <br /> MW11 83 , 000 18 , 000 24 , 000 2 , 100 13 , 000 300 <br /> MW12 22 , 000 1, 300 920 500 1, 800 8 . 7 <br /> MW13 ND ND ND ND ND ND <br /> 3/25/93 MW10 470 5 . 5 ND 21 0 . 62 2 . 2 <br /> MW11 78 , 000 18 , 000 23 , 000 2 , 100 12 , 000 190 <br /> MW12 21, 000 2 , 800 1 , 900 700 1, 400 ND <br /> 14W13 ND ND ND ND ND ND <br /> 12/30/92 MW10 820 25 1 . 5 53 3 . 6 5 . 2 <br /> MW11 84 , 000 20, 000 27 , 000 2 , 400 14 , 000 330 <br />. MW12 23 , 000 3 , 200 1, 200 560 1, 800 32 <br /> MW13 ND ND ND ND ND ND <br /> 9/30/92 MW10 1, 000 26 0 . 85 46 10 12 <br /> MW11 42 , 000 8 , 800 6 , 200 1, 600 4 , 400 56 <br /> MW12 16 , 000 1, 700 1, 000 590 880 24 <br /> MW13 ND ND ND ND 0 . 92 ND <br /> 6/03/92 MW10 960 7 . 2 2 . 0 3 . 3 8 . 6 12 <br /> MW11** 620 150 70 26 68 680 <br /> MW12** 23 , 000 2 , 300 2 , 000 840 1, 700 92 <br /> MW13 ND ND ND ND ND 12 <br /> 2/24/89 MW2+ 1, 600 54 8 . 01 23 20 440 <br /> MW3+ 57 ND ND ND ND 12 <br /> MW4+ ND ND ND ND ND ND <br /> MW5+ ND ND ND ND ND 0. 86 <br /> * All other EPA method 8010 constituents were non-detectable. <br /> ** Nitrates were non-detectable, and coliform bacteria were below <br /> detection limits. <br /> + Well has been destroyed. <br /> Oesults in parts per billion (ppb) , unless otherwise indicated. <br />