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i <br /> I TABLE 2 <br /> ANALYTICAL RESULTS: GROUNDWATER <br /> ISHELL SERVICE STATION 6131 PACIFIC AVENUE STOCKTON CALIFORNIA <br /> I (All results in parts-per-million) <br /> Petroleum Constituents <br /> Well Sample Ethyl- Total PHV as <br /> No Date Benzene Toluene benzene X 1__Y enes Gasoline <br /> MW-1 07/23/90 00019 00015 00006 0 002 035 <br /> 10/09/90 00008 < < < < <br /> 01/10/90 0.0009 < < < 0 070 <br /> 04/09/91 < < < < < <br /> 07/17/91 0 001 < < < 013 <br /> I MW-2 07/23/90 0 044 0 042 00071 0.021 1 9 <br /> 10/09/90 0 078 0 043 < 0 027 057 <br /> 01/10/90 0 360 0.075 < 0 053 1 2 <br /> 04/09/91 1 2 01 0 012 0 21 45 <br /> 07/17/91 36 044 0 '14 071 72 <br /> MW-3 07/23/90 10 18 18 11 63 <br /> 10/09/90 79 12 1 2 9 69 <br /> 01/10/90 10 17 1 2 72 63 <br /> 04/09/91 NA NA NA NA NA <br /> 07/17/91 NA NA NA NA NA <br /> NOTES NA = Not analyzed <br /> I PHV Total (volatile)petroleum hydrocarbons <br /> < Results are less than the Practical Quantitation Reporting limits stated in the August 10, 1990, <br /> 'Tri-Regional Board Staff Ftwmmmendabons for Preliminary Evaluation and Investigation of <br /> Underground Tank Sites" (0 05 ppm for TPH,0 0005 ppm for BTE)Q <br /> I <br /> f <br />