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Subsurface Investigation December 12, 1990 <br /> Former Unocal Station No. 2859, Stockton, California AGS 38012-5 <br /> TABLE 5 <br /> LABORATORY ANALYSES OF GROTIND-WATER SAMPLES <br /> Former Unocal Service Station No. 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> (page 1 of 2) <br /> Sample Sample Ethyl- Total <br /> ID Date TPHg Benzene Toluene benzene Xylenes <br /> W-33-MW1 06/06/88 <20 <0.5 <0.5 <0.5 <0.5 <br /> W-39-MW1 10/26/88 <20 <0.5 <0.5 <0.5 <0.5 <br /> W-36-MW1 03/02/89 <20 <0.5 <0.5 <0.5 <0.5 <br /> W-43-MW1 08/28/89 720 <0.50 1.7 <0.50 <0.50 <br /> W-43-MW1 11/30/89 <20 <0.50 <0.50 <0.50 <0.50 <br /> W-43-MW1 03/01/90 44 <0.50 0.58 <0.50 1.3 <br /> W-45-MW1 05/30/90 38 <0.50 0.59 <0.50 <0.50 <br /> MW1 08/24/90 Not sampled -- Well dry <br /> W-33-MW2 06/06/88 99,000 5,700 48,800 5,000 25,000 <br /> W-38-MW2 10/26/88 172,000 9,400 82,600 4,600 26,000 <br /> W-36-MW2 03/03/89 163,000 2,460 25,080 3,270 16,990 <br /> W-43-MW2 08/28/69 220,000 6,800 44,000 4,000 21,000 <br /> W-45-MW2 11/30/89 200,000 16,000 35,000 2,700 14,000 <br /> W-43-MW2 03/01/90 240,000 11,000 40,000 2,800 17,000 <br /> W-46-MW2 05/30/90 260,000 27,000 66,000 5,100 27,000 <br /> . ..j MW2 08/24/90 Not sampled --- Well dry <br /> W-33-MW3 06/06/88 170 1.0 <0.5 <0.s 1.6 <br /> W-38-MW3 10/26/88 200 1.3 <0.5 <0.5 1.5 <br /> W--36-MW3 03/02/89 120 1.1 <0.5 0.7 1 <br /> W-44-MW3 08/28/89 1,000 1.2 2.1 4.1 11 <br /> W-•45-MW3 11/30/89 360 2.1 1.4 8.4 17 <br /> W-43-MW3 03/01/90 300 1.6 <0.50 3.6 6.4 <br /> W-46-MW3 05/30/90 760 <0.50 9.0 7.1 7.6 <br /> MW3 08/24/90 Not sampled Well dry <br /> See notes on page 2. <br /> _ 16 <br />