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Y TABLE 2 ANALYTICAL RESULTS: GROUNDWATER SHELL SERVICE STATION 620 WEST CHARTER WAY,STOCKTOK CJWP MIA (All results m parts-per-ndljon) Monitoring Date Total Petroleum Aromatic Volatile Organics Well Collected Hydrocarbons Gasoline Benzene Toluene Ethyl- Total benzene Xylenes MW-1 12/18/89 < < < < < 03/28/90 < < < < < 07/31/90 0130 00013 < < < 10/24/90 0 300 00022 < < < 01/31/91 55 0 064 016 0 039 0 2 04/26/91 07 0 018 00024 < <0 0015 0 017 07/23/91 13 00044 0 003 0 003 00079 10/30/91 097 0 015 <<0 0006 <<0 0006 00061 01/28/92 12 <<0 0012 00024 00017 00013 04/30/92 059 00094 000069 00012 00029 07/01/92 094 0 022 000041 000066 00045 10/09/92 < < < < < MW-2 12/18/89 FLH FLH FLH FLH FLH 03/28/90 FLH FLH FLH FLH FLH 07/31/90 FLH FLH FLH FLH FLH 10/24/90 FLH FLH FLH FLH FLH 01/31/91 FLH FLH FLH FLH FLH 04/26/91 FLH FLH FLH FLH FLH 40 07/23/91 FLH FLH FLH FLH FLH 10/30/91 FLH FLH FLH FLH FLH 01/28/92 FLH FLH FLH FLH FLH 04/30/92 FLH FLH FLH FLH FLH 07/10/92 FLH FLH FLH FLH FLH 10/09/92 FLH FLH FLH FLH FLH MW-3 12/18/89 22 0 03 001 < 010 03/28/90 19 1 20 290 045 250 07/31/90 FLH FLH FLH FLH FLH 10/24/90 FLH FLH FLH FLH FLH 01/31/91 FLH FLH FLH FLH FLH 04/26/91 14 1 7 1 2 049 083 07/23/91 19 28 1 6 058 10 10/30/91 13 1 7 040 024 020 01/28/92 22 24 082 046 041 04/30/92 11 27 055 0 031 025 07/10/92 18 46 13 065 059 10/09/92 13 1 6 086 < 1 9 NOTES - = Not analyzed FLH = Floating liquid hydrocarbons < = Below Practical Quantitation Reporting Limits per 'Tri-Regional Board Staff Recommendations for Preliminary . Evaluation and Investigation of Underground Tank Sites' (August 10, 1990) (POL for BTEX = 0 0005 ppm,TPH, as gasoline and diesel = 0 05 ppm) << - Below indicated detection limit labeled in the analytical laboratory reports Aegis Environmental Inc 91 246/Decemoer a 1992