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TABLE 2 <br /> GROUNDWATER CHEMICAL ANALYTICAL RESULTS(TPH,BTEX,AND MTBE) <br /> US CAN-WELTY ROAD <br /> Vernalis, California <br /> Concentrations reported inµg2 <br /> Date Ethyl- Total <br /> Sample ID Collected TPHd TPHdsg TPHg TPHmo Benzene Toluene benzene Xylenes MTBE <br /> SCREENING WQO MMqW,002 IV 1002 5 2 42 2 2917 5 2'4 <br /> LEVELS ESL 100 , <br /> 100 , <br /> 100 5'6 40 5'' 30 5'' 20 5'' 5 5' <br /> 04/21/05 <50 NA <50 NA <0.1 <1 <1 <1 NA <br /> 07/21/05 <50 NA <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> 10/18/05 <50 NA <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> 10/18/05D14 <50 NA <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> 02/14/06 <50 NA <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 02/14/06D <50 NA <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> MW-5 05/04/06 <50 NA <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 08/16/06 <5012 NA <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 11/08/06 7712 <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 01/23/07 56 NA NA NA NA NA NA NA NA <br /> 04/30/07 <50 NA NA NA NA NA NA NA NA <br /> 8/7/200713 NS NS NS NS NS NS NS NS NS <br /> Sampling discontinued on 8/21/2007 per California Regional Water Quality Control Board request. <br /> 11/10/99 <50 <50 <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> 05/21/02 <50 NA <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> 08/07/03 NS NS NS NS NS NS NS NS NS <br /> 04/21/05 71 NA <50 NA <0.1 <1 <1 <1 NA <br /> 07/27/05 170 <50 <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> 10/18/05 240 94 <50 NA <0.5 <0.5 <0.5 <0.5 NA <br /> WFSMW-115 02/14/06 6611 <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 05/03/06 19016 <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 05/03/06D 16016 <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 08/16/06 230 11,12 E <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 08/16/06D 120 11,12 E <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 11/08/06 97011,12 <50 <50 NA <0.5 <0.5 <0.5 <1.5 NA <br /> 01/23/07 39011,12 <50 NA NA NA NA NA NA NA <br /> Page 3 of 4 Flom Sciopce fO Se7dWs <br />