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py .• `Ft. <br /> i',n .4' r' <br /> ` <br /> Mr. Kyle Christie <br /> January 22, 1990 <br /> Page 2 <br /> Tzble 1. Analytical Results of December 4 and 5; 1989, <br /> Groundwater Samples, ARCO Stalion 2133, <br /> Stockton, California <br /> EPA Method 602 <br /> Sample Date Benzene, Ethylhenzene„ Toluene, Xylene, <br /> number collected ug/la ug/1 ug/1 ug/l <br /> PR-1 12/4/89 ND ND ND 0.4 <br /> BHD-I 12/5/89 1,400 1,600 170 2,8G0 <br /> E-2 12/5/89 102 NDb 8.2 53 <br /> E-5 12/5/89 600 120 40 1,030 <br /> E-8 12/5/89 28 ND 1.0 18 <br /> E-10 12/5/89 1,300 400 1,200 3,200 <br /> E-11 12/5/89 240 38 26 290 <br /> E-12 12/4/89 250 ND 54 91 <br /> Maximum contaminant <br /> levelc 1.0 680 1004 1,750 <br /> %.j Deteedcn <br /> limit 0.3 0.3 0.3 0.3 <br /> augll = micrograms per liter. <br /> bDetection limit = 0.6 ug/l. <br /> cCalifomia DHS MCLS for Drinking Water, April 1989. <br /> dCalifornia DHS Drinking Water Action Level, April 1989. <br /> Note: ND = nondetectable. 'r <br /> ?f <br /> ,F- <br /> r, <br /> 7 <br /> BFiQYWN AND CALDWELL <br /> 723SSTREET SACA"ENTQCAttFpRNLA$5al*-M2-(94)444-0123 �� <br />