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H <br /> Quarterly Monitaring Report, First Quarter 1990 September 17, 1990 <br /> Former Unocal Station No. 2859 AGS 38012-2 <br /> TABLE 3 <br /> LABORATORY ANALYSES OF GROUND-WATER SAMPLES <br /> Former Unocal Service Station No. 2859 <br /> a <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> (page 1 of 2) <br /> Sample SEr„ple 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-MWl 08/28/89 720 <0.5 1.7 <0.5 <0.5 <br /> W-43-MW1 11/30/89 <20 <0.5 <0.5 <0.5 <0.5I <br /> W-43-MW1 03/01/90 <20 <0.5 0158 <0.5 1.3 <br /> IW-20-MW2 06/06/88 99,000 5,700 5,000 48,800 25,000 <br /> W-15-M42 10/26/88 172,000 9,400 82,000 4,600 26,000 <br /> W-36-MW2 03/03/89 163,000 2,460 25,080 3,270 16,990 <br /> W-45-MW2 08/28/89 200,000 16,000 35,000 2,700 14,000 <br /> W-43-MW2 11/30/89 220,000 6,800 44,000 4,000 21,000 <br /> JW-43-MW2 03/01/90 240,000 11,000 40, u, 28,000 17,000 <br /> IIW-I5-MW3 06/06/88 170 1.0 <0.5 <0.5 1.6 <br /> W-17-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-45-MW3 08/28/89 360 2.1 1.4 8.4 17 <br /> W-44-MW3 11/30/89 1,000 1.2 2.1 4.1 11 <br /> W-43-MW3 03/01/90 300 1.6 <0.5 3.6 6.4 <br /> Results in parts per billion (ppb) <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Be�ow detection limit or not detected by method of analAsis <br /> used <br /> Alva/i6d G,,60SYSt6m.S ---- <br />