ARCHIVED REPORTS XR0001148 - Laserfiche WebLink

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TABLE 2 ANALYTICAL RESULTS GROUNDWATER SHELL SERVICE STATION } 620 WEST CHARTER WAY, STOCKTON,CALIFORNIA (All results in parts-per-million) Monitoring date Total Petroleum Aromatic Volatile Organics Well Collected Hydrocarbons Gasoline BenzeneToluene Ethyl- Total benzene Xylenes MW-1 12/18/89 < < < < < 03/28/90 < < < < < 07/31/90 0 130 00013 < < < 10/24/90 0 300 00022 < < < 01/31/91 55 0 064 016 0 039 02 04/26/91 07 0 018 00024 < <0 0015 0 017 07/23/91 1 3 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 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 10) 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 MW-3 12/18/89 22 003 001 < 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 2 8 1 6 058 1 0 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 1 3 065 059 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) (PQL for BTEX = 0 0005 ppm TPH, as gasoline and diesel = 0 05 ppm ) << = Below the indicated detection limit labeled in the analytical laboratory results reports NA = Not applicable NS Not sampled NR Not requested Aegis Environmental Inc 91 248/September 1 1992