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TABLE 2 (CONTINUED) <br /> 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-3 12/18/89 2 2 003 001 010 <br /> 03/28/90 19 1 20 290 045 250 <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 /> 10130/91 13 1 7 040 024 020 <br /> 01/28/92 22 2 4 082 0 46 041 <br /> 04/30/92 11 2 7 0 55 0 031 025 <br /> 07110/92 18 46 1 3 0 65 0 59 <br /> 10/09/92 13 1 6 086 < 1 9 <br /> 02/20/93 1 8 < < < 043 <br /> 05/28/93 2 9 0 021 0 011 < 0 560 <br /> 08/27/93 35 < < < 0 470 <br /> 11122/93 1 4 < < 0 001 0 090 <br /> MW-3D 08/27/93 3 3 < < < 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 1992) <br /> < = Below Practical Quantitation Reporting Limits per Tri-Regional Board Staff Recommendations for Preliminary Evaluation <br /> and Investigation of Underground Tank Sites (August 10 1990) (PQL for BTEX = 0 0005 ppm TPN as gasoline and <br /> diesel = 0 05 ppm ) <br /> « - Below indicated detection limit labeled in the analytical laboratory reports <br /> Aegis Envuenmental Inc <br /> 91 2461January 12 1994 <br />