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TABLE 2 <br /> ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION <br /> 620 WEST CHARTER WAY, STOCKTON, CALIFORNIA <br /> (All results in parts-per-million) <br /> Monitonng Date Total Petroleum Aromatic Volatile Organics <br /> Well Collected Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-1 12118/89 < < < < < <br /> 03128/90 < < < < < <br /> 07/31/90 0 130 00013 < < c <br /> 1024190 0 300 00022 < < < <br /> 01131/91 55 0 064 016 0 039 02 <br /> 04126191 0 7 0 018 00024 «0 0015 0 017 <br /> 07/23/91 1 3 00044 0 003 0 003 00079 <br /> 90/30/91 0 97 0 015 «0 0006 «0 0006 00061 <br /> 01128J92 1 2 «0 0012 00024 00017 00013 <br /> 04/30/92 059 00094 000069 00012 00029 <br /> 07/01/92 094 0 022 000041 000066 00045 <br /> 10109/92 < < < < < <br /> 02/19/93 0 3 00076 0 013 00092 0 068 <br /> 05/28/93 < < < < c <br /> 08/27/93 < c c < < <br /> 11/22/93 < < < < < <br /> 02/15/94 < c < < < <br /> 05/10/94 < c < < < <br />• 08/16/94 c c 00052 < < <br /> 11/17/94 < c < < < <br /> 02116/95' < < <br /> MW-2 12/18/89 FLH FLH FLH FLH FLH <br /> 03128/90 FLH FLH FLH FLH FLH <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 FLH FLH FLH FLH FLH <br /> 0723/91 FLH FLH FLH FLH FLH <br /> 10/30/91 FLH FLH FLH FLH FLH <br /> 01/28/92 FLH FLH FLH FLH FLH <br /> 04130/92 FLH FLH FLH FLH FLH <br /> 07/10/92 FLH FLH FLH FLH FLH <br /> 10/09/92 FLH' FLH' FLH' FLH' FLH' <br /> 02/19/93 FLH FLH FLH FLH FLH <br /> 05/28/93 130 0 800 2 8 068 18 <br /> 08/27/93 66 0 360 0 290 «0 2 83 <br /> 11/22/93 340 2 8 43 29 30 <br /> 02/15/94 59 021 02 027 69 <br /> 05/10/94 70 1 4 1 1 1 5 120 <br /> 08/16/94 73 098 0 49 096 7 6 <br /> 11/17/94 60 1 8 0 55 1 3 7 0 <br /> 02116195` 42 1 1 042 0 93 55 <br /> NOTES - = Not analyzed <br /> FLH = Floating liquid hydrocarbons. <br /> FLH' = Slammer in well(Installed October 9 1992) <br /> c = Below Practical Quantitation Reporting Limits per"Tn Regional Board Staff Recommendations for Preliminary Evaluation and <br /> Investigation of underground Tank Sites"(August 10 1 M (PQL for STEX=0 0005 ppm TPH as gasoline and diesel-0 05 ppm) <br /> « = Below indicated detection limit labeled in the analytical laboratory reports. <br /> 0 = Oupbate sample <br /> NS - Not sampled <br /> Laboratory reported persistent low concentrations of toluene and xylenes on their trip blanks and nnse water which may be affecting <br /> analytical results. <br /> Fugro <br /> 93471246fFebruary 1905 <br />