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TABLE 2 <br /> y ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION <br />• 620 WEST CHARTER WAY, STOCKTON, CALIFORNIA <br /> (All results in parts-per-million) <br /> Monitoring Date Total Petroleum Aromatic Volatile Organics <br /> well Collected Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-10 08/01/91 0 069 00026 000037 000043 < <br /> 10/30/91 < 00033 < < < <br /> 01/28/92 0 083 00011 000049 000046 < <br /> 04/30/92 061 0 032 0 057 0 011 0 066 <br /> 07/10/92 < c e < < <br /> 10/09/92 < < < < < <br /> 02/19/93 < < < < < <br /> 05/28/93 < c < < < <br /> 08/27/93 < < < < < <br /> 11/22193 < < e < < <br /> 02/15x94 < < < < < <br /> 05/10/94 < < < < < <br /> 08/16194 < < < < <br /> 11/17/94 < c c < < <br /> 02/16/95' < < < 0 001 < <br />• <br /> NOTES - Not analyzed <br /> FLH = Floating liquid hydrocarbons <br /> FLH• = Skimmer in well(installed October 9 1992) <br />. < _ Below Practical Quantitation Reporting Limits per"Tri-Regranal Board Staff Recommendations for Preliminary Evaluation and <br /> ImesLpatlon of Underground Tank S9W(August 10 1990) (PAL for BTEX=0 0005 ppm TPH as gasoline and diesel=0 05 Ppm) <br /> « Below indicated detection limit labeled in the analytical laboratory reports. <br /> D a Duplicate sample <br /> NS Not sampled <br /> • = Laboratory reported persistent low concentrations of toluene and xylenes in their trip blank&and rinse water which may be aRecting <br /> anatpcal resuitg <br /> Fugro <br /> 9347124WFebruary 1995 <br />