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TAB2 • <br /> ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION (WIC No 204-7525-0104) <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA <br /> (parts-per-million) <br /> Total Aromatic Volatile Organics <br /> Monitoring Date Petroleum Total Total Fecal <br /> Well Collected Hydrocarbons Lead Coliform Coliform <br /> (MPN1100ml) (MPN1100mi) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-2 07/23/90 19 0 044 0 042 00071 0 021 --- 33 «2 <br /> 10109!90 0 570 0 078 0 043 0 027 «0 002 21 «2 <br /> 01110/90 1 2 036 0 075 < 0 053 -- <<2 2 Neg <br /> 04/09191 4 5 1 2 01 0 012 0 210 -- 1 1 1 1 <br /> 07/17/91 72 36 0 440 0 140 0 710 -- >23 >23 <br /> 10/08/91 100 76 0 350 0 260 0 600 — 120 120 <br /> 02/26/92 170 74 0 220 0 320 1 3 — «2 <<2 <br /> 05/12/92 0 071 0 026 < 0 00085 00024 --- «1 «3 8 <br /> 07!08!92 49 1 6 < 0 060 0 210 --- «3 8 <<3 8 <br /> 10/15/92 2 5 0 094 0 003 00042 00094 --- «3 8 «3 8 <br /> 01/11/93 0 290 0 028 < 00063 < -- «2 0 --- <br /> 04/28/93 0 790 0 030 00018 00055 0 003 - --- --- <br /> 08/26193 0 390 00096 < < < - —11/22/93 0 370` 00035 < < 00014 — - <br /> 02/15/94 0 790 0 035 «0 002 «0 002 «0 002 – - <br /> 05/10/94 0 78 00096 < < < -- --- --- <br /> 08/16/94 074 0 015 0 0013 0 001 00018 — - -- <br /> 11/17/94 043 0012 00018 < < - — <br /> 02l21195 037 00067 00005 < < — <br /> MW-2D 07/08/92 5 0 1 7 < 0 061 0 230 - — - <br /> ("Dup') 11/22/93 0 330` 00054 < < 000095 --- – <br /> 02l15/94 0 720 0 033 < < < -- <br /> NOTES = Not analyzed <br /> < = Less than Practical Quantitation Reporting limits stated in the August 10 1990 'Tn Regional Board <br /> Staff Recommendations for Preliminary Evaluation and Investigation of Underground Tank Sites"(0 050 ppm for TPH <br /> 0 0005 ppm for 9TEX) <br /> MPN1100ml - Most Probable Number(MPN)of bacteria per one hundred m=ilitilers <br /> << = Less than the indicated detection limit <br /> Greater than or equal to <br /> Positive response for petroleum hydrocarbons as gasoline is due to the presence of an unknown hydrocarbon not gasoline <br /> D = Duplicate sample <br /> Samples collected ptlof to July 27 1992 by Aegis Environmental Inc,of Roseville CaldOTnta <br /> Samples collected from July 27 Ihiough October 15 1992 by EMCON Associates o1 Sacramento California <br /> Samples collected after October 1 a 1992 by Blaine Tech Services Inc of San Jose California <br /> Fugro <br /> 9347-0020/February 1995 <br />