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I <br /> June 30, 1992 MA <br /> NA <br /> Unocal Station No. 6981, Stockton, California <br /> I <br /> TABLE 3 <br /> RESULTS OF CHEMICAL ANALYSES OF GROUND-WATER SAMPLES <br /> Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> (page 3 of 3) <br /> Sample <br /> ID Date TPHg B T E X <br /> W-51-MW5 02/22/90 3 , 600 77 16 <0. 50 17 <br /> 10/18/90 NS <br /> 11/19/90 NS <br /> 12/27/90 NS <br /> 01/28/91 NS <br /> 04/02/91 NS <br /> 07/18/91 NS <br /> 09/30/91 NS <br /> 11/14/91 NS <br /> 03/09/92 NS <br />• W-52-MW6 03/09/92 <50 <0. 5 <0. 5 <0. 5 <0.5 <br /> W-52-MW7 03/09/92 13 , 000 1, 400 13 9. 9 190 <br /> W-50-MW8 03/09/92 860 20 2. 3 1. 2 5. o <br /> Results in parts per billion <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> B = Benzene, T = Toluene, E = Ethylbenzene, X = Total xylene <br /> isomers <br /> NS = Not sampled <br /> < = Below detection limit for analytical method used <br /> Sample designation: <br /> W-50-MW1 <br /> Monitoring well number <br /> �-- Sample depth in feet below well casing <br /> Water sample <br /> 0 <br /> 3832-7 <br /> 38032-7 <br />