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i <br /> TOE 2 <br /> ANALYTICAL RESULTS GROUNDWATER <br /> FORMER EXXON SERVICE STATION RAS#7-0137 <br /> 1605 SOUTH EL DORADO,STOCKTON, CALIFORNIA <br /> (All results to parts-per billion) <br /> Monitoring Date Total Aromatic Volatile Organics <br /> Well Collected Petroleum <br /> Hydrocarbons <br /> Ethylene Total <br /> Gasoline Benzene Toluene Ethyl Total Dtbromtde Lead <br /> benzene Xylenes <br /> MW 1 07111/91 < < < < < <0 5 <50 <br /> 10/17/91 < < < < < <0 05 <30 <br /> 01/17/92 < < < < < <0 02 70 <br /> 04/22/92 < < < < < -- 4 0 <br /> 09/24/92 < < < < < -- <br /> 12117/92 < < < < < <br /> 03/25/93 52 < < < < <br /> 06/21/93 63 < < 1 8 6 8 <br /> 08/24/93 52 1 1 < < < -- --- <br /> MW 2 07/11/91 140 0 5 < < < <05 <50 <br /> 10/17/91 70 < 2 0 < < <0 05 3 0 <br /> 01/17/92 88 < < < < <0 02 120 <br /> 04/22/92 88 < < < < - 3 0 <br /> 09/24/92 86 < < < < - <br /> 12117192 140 < < < < <br /> 03/25/93 110 < < < < <br /> 06/21/93 140 < 0 6 < 1 1 <br /> 08/24/93 104 1 1 < < 0 7 --- --- <br /> MW 3 07/11/91 940 9 0 1 5 < 78 <05 <50 <br /> 10/17/91 390 4 3 1 8 5 2 47 <0 05 5 0 <br /> 01/17/92 580 170 4 6 130 100 <0 02 9 0 <br /> 04/22/92 550 11 1 2 7 8 85 -- 8 0 <br /> 09/24/92 420 8 8 3 8 12 80 --- <br /> 12/17/92 620 17 2 2 12 84 <br /> 03/25/93 910 37 1 2 21 130 --- --- <br /> 06/21193 640 21 1 1 14 73 - <br /> 08/24/93 60 13 1 5 7 1 12 49 <br /> NOTES < = Below Practical Quentnation Reporting Limits (POLI per "Tri Regional Board Staff Recommendations for Preliminary Evaluation and Investigation of Underground Tank Sttas" {,august 10 1990) (PQL for <br /> BTEX = 0 5 ppb TPH as gasoline and diesel - 50 ppb I <br /> Not analyzed <br /> Aegis Environmental Inc <br /> 91 0441September 20 1993 <br />