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i <br /> TABLE 2 (CONTINUED) <br /> ANALYTICAL RESULTS- GROUNDWATER <br /> SHacLt.SERVICE STATION <br /> 820 WEST CH4MM WAY.STOCKTON,CAUFOFINIA <br /> (MI Maudw M pMts-per-"U=) <br /> Monitoring Date Total Petroleum Aromatic Volatile Organics <br /> Well Collected Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-7 01/10/90 FLH FLH FLH FLH FLH <br /> 03/28/90 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 54 45 73 1 7 74 <br /> 07/23/91 NS NS NS NS NS <br /> 10/30/91 1 30 25 64 16 10 <br /> 01/28/92 NS NS NS NS NS <br /> 04/30/92 NR NR NR NR NR <br /> 07/10/92 14 022 1 4 054 26 <br /> 10/09/92 NS NS NS NS NS <br /> MW-8 03/28/90 86 27 0 250 0 030 0 520 <br /> 07/31/90 26 84 0 740 0200 0 400 <br /> 10/24/90 16 68 0 180 0 140 0 170 <br /> 01/31/91 17 85 037 021 045 <br /> 04/26/91 15 63 026 015 039 <br /> 07/23/91 15 64 03 015 035 <br /> 0 10/30/91 21 51 021 0 097 012 <br /> 01/28/92 17 50 012 014 026 <br /> 04/30/92 13 46 0 092 013 010 <br /> 07/10/92 72 35 < 0 097 < <br /> 10/09/92 29 26 37 < 5 7 <br /> MW-8D 10/09/92 27 22 3 < 58 <br /> ("X-Dup") <br /> NOTES FLH = Floating liquid hydrocarbons <br /> < - Below Practical Quantitation Reporting limits per "Tri-Regional Board Staff Recommendations for Preliminary <br /> Evaluation and Investigation of Underground Tank Sites` (August 10, 1990) (PQL for BTEX = 0 0005 ppm,TPH,as <br /> gasoline and diesel = 0 05 ppm) <br /> NS = Not sampled <br /> NR - Not requested <br /> D Duplicate sample <br /> Aegis Environmental Inc <br /> 91 246/Qecember 8 1992 <br />