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T 2 <br /> ANALYTICAL RESULTS GROUNDWATER <br /> SHELL SERVICE STATION (WIC No 204-7525-0104) <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA <br /> (Parts-per-mdGon) <br /> Total Aromatic Volatile Organics <br /> Monitoring Date Petroleum Total Total Fecal <br /> Well Collected Hydrocarbons Lead Coliform Coliform <br /> Gasoline Benzene Toluene Ethyl- Tatal (MPN/100ml) (MPN/100ml) <br /> benzene Xylenes <br /> MW 3 07/23190 630 100 180 1 8 11 0 --- 540 33 <br /> 10/09190 69 0 79 120 12 90 —0 002 >2,400 920 <br /> 01/10/90 630 100 170 1 2 72 --- '16 Pos <br /> 04/09/91 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 07/17/91 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 10/08/91 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 02/26/92 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 05112/92 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 07/08192 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 10/15/92 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 01/11/93 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 04128!93 FLH FLH FLH FLH FLH FLH FLH FLH <br /> 08/26/93 1200 190 220 22 110 -- --. <br /> 11/22/93 1500 190 28 0 —0 250 150 -- -- — <br /> 02/15/94 1200 220 31 0 2 5 140 --- -- --- <br /> 05/10/94 150 19 28 2 5 13 — -- — <br /> 08/16194 85 18 28 2 2 13 --- — — <br /> i <br /> MW-3D 05/10/94 150 20 29 25 14 — — <br /> ("Dup-1") 08/16/94 140 18 29 26 13 --- — — <br /> NOTES = Not analyzed <br /> < = Less than Practical Quantrbtion Reporting limits stated in the August 10 1690 "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 BTEX <br /> MPNl100ml = Most Probable Number(MPH)of bacteria per one hundred milliners <br /> = Less than the inMested 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 gasolme <br /> D a Duplicate sample <br /> Samples collected prior to July 27 1992 by Aegis 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 1992 by Blaine Tech Services Inc of San Jose Caldomra <br /> Fugro <br /> 904MAugust 1994 <br />