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May ,4 1993 AMA Unocal Station No 6981, Stockton, CaliforniaWorking To Restore Nature <br /> TABLE 6 <br /> HYDROCARBON CONCENTRATIONS IN GROUND-WATER SAMPLES <br /> Unocal Service Station No 6981 <br /> 4707 Pacific Avenue <br /> Stockton, Califorma <br /> (page 3 of 4) <br /> Sample Ethyl- Total <br /> Number Date TPHg Benzene Toluene benzene Xylenes <br /> Momtonng Wells <br /> W-51-MW5 02/22/90 3,600 77 16 <050 17 <br /> 10/18/90 NS NS NS NS NS <br /> 11/19/90 NS NS NS NS NS <br /> 12/27/90 NS NS NS NS NS <br /> 01/28/91 NS NS NS NS NS <br /> 04/02/91 NS NS NS NS NS <br /> 07/18/91 NS NS NS NS NS <br /> 09/30/91 NS NS NS NS NS <br /> 11/14/91 NS NS NS NS NS <br /> 03/09/92 NS NS NS NS NS <br /> 04/16/92 NS NS NS NS NS <br /> 07/30/92 NS NS NS NS NS <br /> 10/21/92 NS NS NS NS NS <br /> 01/13/93 NS NS NS NS NS <br /> W-52-MW6 03/09/92 <50 <05 <05 <05 <05 <br /> 07/30/92 410• <05 <05 <05 <05 <br /> 10/21/92 180 22 08 <05 <05 <br /> 01/13/93 140 36 <05 06 1 <br /> W-52-MW7 03/09/92 13,000 1,400 13 99 190 <br /> 07/30/92 950 320 19 57 25 <br /> 10/21/92 240 35 26 19 32 <br /> 01/13/93 2,400 1,000 95 35 120 <br /> W-50-MW8 03/09/92 860 20 23 12 50 <br /> 07/30/92 <50 17 <05 <05 <05 <br /> 10/21/92 <50 <05 08 <05 <05 <br /> 01/13/93 <50 <05 <05 <05 <05 <br /> W-56-MW9 08/19/92 <50 <05 <05 <05 <05 <br /> 10/21/92 <50 <05 <05 <05 <05 <br /> 01/13/93 <50 <05 <05 <05 <05 <br /> See notes on page 4 of 4 <br /> i <br /> 38032-13 <br /> I <br />