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TABLE 2 (CONTINUED) <br /> 5> <br /> ANALYTICAL RESULTS GROUNDWATER <br /> a^� SHELL SERVICE STATION <br /> 620 WEST CHARTER WAY, STOCKTON CALIFORNIA <br /> (All results in parts-per-mdlron) <br /> Monitoring pate Total Petroleum Aromatic Volatile Organics <br /> Well Collected Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-4 12/18/89 2 5 0 025 0 004 < 0 070 <br /> 03/28/90 100 0 290 0 270 00015 0 290 <br /> 07/31/90 FLH FLM 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 /> 07/23/91 FLH FLH FLH FLH FLH <br /> 10/30/91 FLH FLH FLH FLH FLH <br /> 01128192 FLH FLH FLH FLH FLH <br /> 04/30/92 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 81 0 990 3 9 1 3 13 <br /> 08/27/93 90 0 220 0 049 < 1 0 <br /> 11/22/93 490 11 0 680 36 18 <br /> MW 5 01/10/90 0 100 < < < 000051 <br /> 03/28/90 1 5 00033 0 012 00012 0 019 <br /> 07!31/90 1 4 0 150 0 020 0 043 0 039 <br /> 10/24/90 086 0 220 0 022 0 038 0 036 <br /> 01/31/91 140 1 1 52 1 9 74 <br /> 04/26/91 6 7 3 0 0 050 018 0 '31 <br /> 07/23/91 22 8 9 09 069 0 9 <br /> 10/30/91 19 3 8 023 0 27 050 <br /> 01/28/92 34 9 2 044 0 83 1 2 <br /> 04130/92 23 81 035 076 1 3 <br /> 07/10192 25 9 2 1 3 1 0 1 9 <br /> 10/09/92 16 33 0 36 < 2 3 <br /> 02/19/93 0 17 00074 000061 00027 00035 <br /> 05/28/93 < 000086 < < 00024 <br /> 08/27/93 < < < < < <br /> 11/22193 < < < < < <br /> NOTES FLH = Floating liquid hydrocarbons <br /> < - Below Practical Quantitation Reporting Limits per Tri-Regional Board Staff Recommendations for Preliminary Eva luation <br /> and Investigation of Underground Tank Sites (August 10 1990) (PQL for BTEX = 0 D005 ppm TPH as gasoline and <br /> diesel = 0 05 ppm ) <br /> << = Below Indicated detection limit labeled in the analytical laboratory reports <br /> FLH = Skimmer in well (installed October 9 1992) <br /> D = Duplicate sample <br /> Aegis Ernvvonnnental Inc <br /> 91 24WjAnuary 12 1994 <br />