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TABLE 2 <br /> ` }1 ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION <br />• 620 WEST CHARTER WAY, STOCKTON, CALIFORNIA <br /> (All results to 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-20 05/10/94 76 1 3 1 0 1 5 120 <br /> (DUP-1) 08/16/94 77 1 0 0 58 0 96 77 <br /> 11/17194 51 1 6 047 1 1 6 3 <br /> MW-3 12/18/89 22 003 001 < 010 <br /> 03/28/90 19 120 290 045 250 <br /> 07/31/90 FLH FLH FLH FLH FLH <br /> 10/24/90 FLH FLH FLH FLH FLH <br /> 01/31/91 FLH FLH FLH FLH FLH <br /> 04/26/91 14 1 7 1 2 049 083 <br /> 07/23/91 19 2 8 1 6 058 1 0 <br /> 10/30!91 13 1 7 040 024 020 <br /> 01/28/92 22 24 082 046 041 <br /> 04/30/92 11 27 0 55 0 031 025 <br /> 07/10/92 18 46 13 065 059 <br /> 10/09/92 13 1 6 0 86 < 1 9 <br /> 02/20/93 18 < c < 043 <br /> 05/28/93 29 0 021 0 011 < 0 560 <br /> 08/27/93 35 < < < 0 470 <br /> 11/22/93 1 4 < < 0 001 0 090 <br /> • 02/15/94 < < < < < <br /> 05/10/94 < < < < < <br /> 08/16/94 013 0 002 00022 000078 00097 <br /> 11/17/94 < < e < < <br /> 02116/95' < < < < < <br /> MW-313 08/27/93 33 «0 02 «0 02 «0 02 0 370 <br /> (DUP-1) 11/22/93 1 3 < < 1 0 0 091 <br /> NOTES -- = Not analyzed <br /> FLH = Floating liquid hydrocarbons. <br /> FLH = Skimmer in well(installed October 9 19M <br /> Beksw Practical Quantitation Reporting Limits per'Tn Regional Board Staff Recommendations for Preliminary Evaluation and <br /> 0 — Investigation of Underground Tank Sited'(August 10 19M (PQL for STEX=0 0005 ppm TPM as gasoline and diesel=0 05 ppm) <br /> Below indicated detection Iirnrl labeled in the analytical laboratory reports <br /> 0 = Duplicate sample <br /> NS = Not sampled <br /> - Laboratory reported persistant low concentrations of toluene and xylenes in their trip blanks and rinse water which may be affecting <br /> analyhol results <br /> Fugro <br /> 9347124&February 1995 <br />