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TABLE 2 <br /> GROUNDWATER CHEMICAL ANALYTICAL RESULTS-TPH,MTBE,and BTEX1 <br /> US Can-Welty Road <br /> Vernalis,California <br /> Concentrations reported in micrograms per liter(µg/L) <br /> Date <br /> Sample ID Collected TPHg TPHd TPHd w/s.g. TPHmo MTBE Benzene Toluene Ethylbenzene Total Xylenes <br /> MW-1 10/1/1996 61,000 3,000 NA NA NA <1000 <1000 <1000 <1000 <br /> 7/28/98(�) NS NS NS NS NS NS NS NS NS <br /> 5/20/02(2) NS NS NS NS NS NS NS NS NS <br /> 8/7/03(�) NS NS NS NS NS NS NS NS NS <br /> 4/21/05(') NS NS NS NS NS NS NS NS NS <br /> 7/21/05(2) NS NS NS NS NS NS NS NS NS <br /> 10/18/05(') NS NS NS NS NS NS NS NS NS <br /> MW-2 07/28/98 <100 2,300 NA 700 <10 <0.3 <0.3 <0.5 <0.6 <br /> 05/20/02 140 7,200 4,700 NA NA 0.8 1.2 0.5 5.7 <br /> sheen sheen <br /> 8/7/03(2) NS NS NS NS NS NS NS NS NS <br /> 4/21/05(') NS NS NS NS NS NS NS NS NS <br /> 07/21/05 310 150,000 170,000 NA NA <0.5 <0.5 <0.5 <0.5 <br /> 10/18/05(') NS NS NS NS NS NS NS NS NS <br /> MW-3 07/28/98 <100 300 NA <50 <10 <0.3 <0.3 <0.5 <0.6 <br /> 05/20/02 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> 08/07/03 <50 86 73 NA NA <0.5 <0.5 <0.5 <0.5 <br /> 4/21/05(3) NS NS NS NS NS NS NS NS NS <br /> 07/21/05 <50 6,700 6,700 NA NA <0.5 <0.5 <0.5 <0.5 <br /> 10/18/05 <50 2,500 2,700 NA NA <0.5 <0.5 <0.5 <0.5 <br /> MW-4 07/28/98 <100 <50 NA <50 <10 <0.3 <0.3 <0.5 <0.6 <br /> 05/20/02 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> 08/07/03 NS NS NS NS NS NS NS NS NS <br /> 4/21/05(3) NS NS NS NS NS NS NS NS NS <br /> 07/21/05 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> 10/18/05 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> MW-5 04/21/05 <50 <50 NA NA NA <0.1 <1 <1 <1 <br /> 07/21/05 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> 10/18/05 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> 10/18/05D <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> WFSMW-1(41 11/10/99 <50 <50 <50 NA NA <0.5 <0.5 <0.5 <0.5 <br /> 05/21/02 <50 <50 NA NA NA <0.5 <0.5 <0.5 <0.5 <br /> 08/07/03 NS NS NS NS NS NS NS NS NS <br /> 04/21/05 <50 71 NA NA NA <0.1 <1 <1 <1 <br /> 07/27/05 <50 170 <50 NA NA <0.5 <0.5 <0.5 <0.5 <br /> 10/18/05 <50 240 94 NA NA <0.5 <0.5 <0.5 <0.5 <br /> Abbreviations: <br /> TPHg=Total petroleum hydrocarbons(TPH)quantified as gasoline <br /> TPHd=TPH quantified as diesel without silica gel preparation <br /> TPHd w/s.g.=TPH quantified as diesel with silica-gel preparation <br /> TPHmo=TPH quantified as motor oil <br /> MTBE=Methly tertiary butyl ether <br /> NS=Not sampled <br /> NA=Not analyzed <br /> gg/L=micrograms per liter <br /> <=Analyte not detected at or above the laboratory reporting limit shown <br /> D=duplicate sample;labeled differently on chain-of-custody. <br /> Notes: <br /> 1. Samples were analyzed by Lancaster Laboratories,Inc.for TPHd using method CALUFT-DRO/8015B Modified and TPHg using method <br /> N.CA LUFT Gasoline.TPHd analysis was performed without a silica-gel preparation procedure. Benzene,toluene,ethylbenzene, <br /> and total xylenes were analyzed using EPA Method 8021B. <br /> 2. Not sampled due to the presence of SPO. <br /> 3. Insufficient water in the well to sample. <br /> 4. Well located on Western Farm Service Property. <br /> Paget of 1 <br />