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TABLE 2 <br /> ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION <br />• 620 WEST CHARTER WAY, STOCKTON, CALIFORNIA <br /> (All results in parts-per-million) <br /> Monitonng Date Total Petroleum Aromatic Volatile Organics <br /> Well Collected Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-8 03/28/90 86 27 0 250 0 030 0 520 <br /> 07/37/90 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 /> 0426191 15 63 026 015 0 39 <br /> 07/23/91 15 64 0 3 015 035 <br /> 10/30/91 21 51 021 0 097 012 <br /> 01/28/92 17 5 0 012 014 026 <br /> 04/30/92 13 46 0 092 013 010 <br /> 07/10/92 72 35 «0 05 0097 «0 05 <br /> 10/09/92 29 2 6 3 7 «0 05 57 <br /> 02/20/93 66 1 2 0 081 0 069 065 <br /> 05/28/93 12 0 110 0 150 0 027 34 <br /> 08/27/93 11 —002 0 140 0 071 2 4 <br /> 11/22/93 61 «0 005 0 027 0 020 1 2 <br /> 02/15/94 45 «0 010 0 026 a<O 010 1 0 <br /> 05/10/94 23 —0010 «0 010 «0 010 03 <br /> 08/16/94 1 1 00035 00065 00037 005 <br /> 11/17/94 05 00041 < 00017 00058 <br /> 02/16195* 018 00042 00006 00007 00026 <br />• MW-8D 10/09/92 27 22 3 < 58 <br /> (DUP-1) <br /> MW-9 03/28/90 110 18 20 21 12 <br /> 07/31/90 FLH FLH FLH FLM FLH <br /> 10/24/90 110 20 25 22 13 <br /> 01/31/91 120 27 26 25 15 <br /> 04/26/91 120 21 24 22 15 <br /> 07/23/91 110 18 22 21 15 <br /> 10/30/91 220 21 27 2 6 21 <br /> 01/28/92 200 25 24 2 7 18 <br /> 04/30/92 160 20 26 36 24 <br /> 07/10/92 110 22 24 29 17 <br /> 10/09/92 130 18 20 19 16 <br /> 02/20/93 290 140 180 47 36 <br /> 05/28/93 120 39 2 6 1 1 12 <br /> 08/27/93 16 0 330 «0 025 «0 025 0 840 <br /> 11/22/93 72 26 5 9 1 9 96 <br /> 02/15/94 51 1 3 2 7 1 6 9 3 <br /> 05/10/94 44 1 0 1 9 1 3 66 <br /> 08/16/94 26 036 053 0 72 28 <br /> 11/17/94 27 1 3 027 1 2 3 9 <br /> 02/16/95* 27 1 3 0 55 1 2 41 <br /> MW-9 02!15194 53 1 4 3 0 1 6 9 4 <br /> (D P-1) 02116195 27 1 3 0 56 1 2 42 <br /> NOTES — = Not analyzed <br /> FLH Floating ligwd hydrocarbons, <br /> FLH' = Slumrner in well(installed October 8 1882) <br />. = Below Practical Quantitation Reporting Limits per Tn Regional Board Staff Recommendations for Preliminary Evaluation and <br /> InvesUgat an of Underground Tank Sites'(August 10 19M (POL for STD(■0 0005 ppm TPH as gasoline and dlesel z 0 05 ppm) <br /> u = Below indicated detection lirrut labeled in the analytical laboratory reports. <br /> D = Duplicate sample <br /> NS - Not sampled <br /> • a Laboratory reported persistent low concentrations of toluene and xylenes in their trip blanks and rinse water which may be affecting <br /> analytical results. <br /> Fugro <br /> 9347124&February 1995 <br />