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Protect 113-26, Page 4 <br /> Table 3 <br /> Water Level Measurements <br /> Cheaper{ #37 <br /> 15 East Grant Line Road, Tracy, Califorrua <br /> Levels measured March 2,1993 <br /> Well # Well Top Elevation* - Depth to GW - GW Elevation <br /> MW-1 25.20 5.51 19 69 <br /> MW-2 25.20 5.69 19.51 <br /> MW-3 26.40 6.84 19.56 <br /> MW-4 24.20 4.57 19.63 <br /> *An arbitrary elevation of 25(Y was established on the site for the GW elevation. <br /> Laboratory Analysis Results. <br /> A total of eight soil samples were taken from the seven borings, two from B-2, and <br /> one sample from each of the other bonngs. As seen in the table below, <br /> contamination exists in some of the soil samples, but not in B-1, B-3, and B-7. <br /> Table 1 <br /> Soil Sample Analysis Results* r <br /> Cheaper' #37 <br /> 15 East Grant Line Road, Tracy, Califorrua <br /> Samples Collected February 26, 1993 <br /> Sam le # TPH-g Benzene Toluene Eth lbenzene Xylenes <br /> B-1-6 ND ND ND ND ND <br /> B-2-6 19 18 0 062 0.57 1.5 <br /> B-3-6 ND ND ND ND ND <br /> B-4-6 260 0.36 0.93 3.6 17 <br /> B-4-7 470 33 5.7 7.5 28 <br /> B-5-6 88 025 is 12 6.5 <br /> B-6-6 79 ND<0.025 019 0.44 0.19 <br /> B-7-7 ND ND ND ND 0 013 <br /> *Reported in parts per million Detection Limits TPH-g, 10 mg/kg;Benzene,Toluene, Ethylbenzene <br /> and Xylenes, 0 005 mg/kg ND= Not Detected The first number in the sample# refers to the borehole <br /> number, the second to the depth from which the sample was taken <br /> Analysis of water samples collected on February 26, 1993 from the well points <br /> showed some contamination No water sample was taken from BH-7. The pattern of <br /> contamination is consistent with the soil-sample data <br /> 22 <br /> Parker Environmental Services 4185 Rialto Court Pittsburg CA 94565-6116 <br /> Phone (510) 439-1024 Fax (510) 439-2566 <br />