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i Krr <br /> Semiannual Groundwater Monitoring, Second Half 1993 June 2, 1994 <br /> Quik Stop Market No. 120, Stockton, California F7120.93 <br /> TABLE 1 <br /> CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES <br /> Ethyl- Total Well Depth to Groundwater <br /> Sample Date TPHd TPHg Benzene Toluene benzene Xylenes Elevation Water Elevation <br /> Number Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (it above MSL) (feet) (ft above MSL) <br /> MW-1 07/08/90 <50 <30 <030 <0.30 <030 <030 12.02 4459 <br /> 12/06/90 <50 <50 <0.50 <050 <050 <050 46.00 <br /> 03/05/91 <50 <50 <050 <050 <050 <050 45.66 <br /> 04/30/91 <50 <50 <0.50 <050 <0.50 <050 45.30 <br /> 06/05/91 <50 <50 <0.50 <050 <030 <0.50 4535 <br /> 09/11/91 <100 <50 <050 <0.50 <050 <050 47.04 <br /> 12/18/91 <100 <50 <0.50 <0.50 <0.50 <050 45.62 <br /> 06/16/92 <50 <50 <0.50 <0.50 <0.50 <0.50 45.33 -33.31 <br /> 12/21/ 92 <50 <50 <0.50 <050 <0.50 <050 46.63 -34.61 <br /> 05/03/93 <50, <50 <0.50 <0.50 <0.50 <0.50 41.83 -29.81 <br /> 06/18/93 <50 <50 <050 <0.50 <0.50 <050 41.29 -29.27 <br /> 12/17/93 <50 <50 <050 <050 <0.50 <0.50 41.61 -2959 <br /> MW-2 08/06/90 <50 <30 <030 <030 <030 <030 11.74 44.80 <br /> 12/06/90 <50 55 4.1 10 2.2 11, 45.54 <br /> 03/05/91 <50 <50 <050 <050 <050 <050 45.21 <br /> 04/30/91 <50 <50 <050 <050 <050 <0.50 44.83 <br /> 06/05/91 <50 <50 <0.50 <0.50 <050 <050 44.90 <br /> 09/11/91 <100 <50 <0.50 <0.50 <0.50 <050 46.58 <br /> 12/18/91 <100 <50 <050 <0.50 <0.50 <050 45.18 <br /> Page 1 of 2 <br />