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. TA*2 i <br /> ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION (WIC No 204-7525-0104) <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA <br /> (parts-per-indhon) <br /> Total Aromatic Volatile Organics <br /> Mondonng Date Petroleum Total Total Fecal <br /> Well Collected Hydrocarbons Lead Coliform Collform <br /> (MPN/100ml) (MPN/100mi) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-2 07123!90 1 9 0 044 0 042 00071 0 021 --- 33 <<2 <br /> 10/09/90 0 570 0 078 0 043 < 0 027 «0 002 21 «2 <br /> 01/10/90 1 2 036 0 075 < 0 053 -- «2 2 Neg <br /> 04/09191 45 12 01 0012 0210 -- 11 11 <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 < 000085 00024 — «1 «3 8 <br /> 07108/92 49 1 6 < 0 060 0 210 - «3 8 «3 8 <br /> 10/15/92 25 0 094 0 003 00042 00094 «3 8 «3 8 <br /> 01111/93 0 290 0 028 < 00063 < «2 0 -- <br /> 04/28/93 0 790 0 030 00018 00055 0 003 --- — — <br /> 08/26/93 0 390 00096 < < < - <br /> 11/22/93 0 370' 00035 < 00014 -- — -- <br /> 02/15/94 0 790 0 035 «0 002 «0 002 «0 002 --- — — <br /> 05/10/94 078 00096 < < < -- — — <br /> 08/16/94 074 1 0 015 1 00013 1 0 001 00018 -- -- --- <br /> MW-2D 07/08/92 50 1 7 0 061 0230 --- — — <br /> ("Dup") 11/22/93 0 330• 00054 < < 000095 -- — -- <br /> 02/15194 0 720 0 033 < < < <br /> I <br /> NOTES = Not analyzed <br /> < = Less than Practical Quantitation Reporting limits stated in the August 10 logo "roe Regional Board <br /> Staff Recommendations for Preliminary Evaluabon and Investigation of Underground Tank Sites'(0 050 ppm for TPH <br /> 0 0005 ppm for BTEX) <br /> MPN/100ml = Most Probable Number(MPN)of bacteria per one hundred milliliters <br /> « = Less than the Indicated detection Amit <br /> > = Greater than or equal to <br /> • = Positive response for petroleum hydrocarbons as gasoline is due bo the presence of an unknown hydrocarbon not gasoline <br /> D = Duplicate sample <br /> Samples collected prior to July 27 1992 by Aegle Environmental Inc of Roseville California <br /> Samples collected from July 27 through October 15 1992 by EMCON Associates of Sacramento California <br /> Samples collected after October 15 1092 by Blalne Tech Services Inc of San Jose California <br /> Fugro <br /> 90-020fAugust 1904 <br />