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0 0 0 '­-� <br /> TABLE 2 (CONTINUED) <br /> ANALYTICAL RESULTS: GROUNDWATER <br /> SHELL SERVICE STATION,6131 PACIFIC AVENUE,STOCKTON,CALIFORNIA <br /> (All hydrocarbon results in parts -billion) <br /> Total Aromatic Volatile Organics <br /> MonitoringDate Petroleum <br /> Total Total Face[ <br /> Well Collected Hydrocarbons Lead Coliform Coliform <br /> (MPN/100ml) (MPN/100ml) <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> MW-20 07/08/92** 51000 1,700 610 230 <br /> MW-3 07/23/90 63,000 10,000 0 18,000 0 118000 11,0000 --- 540 33 <br /> 10/09/90 69,000 7,900 0 12,000 0 1,200 0 9,0000 «0 002 1 x2,400 920 <br /> 01/10/90 63,000 10,000 0 17,000 0 1,200 0 7,200 0 --- 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 /> 05/12/92** FLH FLH FLH FLH FLH FLH FLH FLH <br /> 07/08/92** FLH FLH FLH FLH FLH FLH FLH FLH <br /> 10/15/92** FLH FLH FLH FLH FLH FLH FLH FLH <br /> NOTES - = Not analyzed <br /> FLH = Floating liquid hydrocarbons <br /> < = Less than Practical Quanlitalion Reporting limits stated in the August 10, 1990, "Tri-Regional Board <br /> Staff Recommendations for Preliminary Evaluation and Investigation of Underground Tank Sites"(50 ppb for TPH, <br /> 0 5 ppb for BTEX) <br /> MPN/100ml = Most Probable Number (M PN)of bacteria per one hundred milliliters <br /> Less than the indicated detection limit <br /> I <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 /> '* = Data collected by Emcon Associatesof Sacramento, California <br /> D = Duplicate sample <br /> MW-3 was not sampled from April 9, 1991,to present due to the presence of FLH <br /> Aegis Environmental Inc <br /> 9MW/December 15 1992 <br />