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TABLE 1 <br /> ANALYTICAL RESULTS FEBRUARY 1991 SOIL BORINGS <br /> FORMER EXXON SERVICE STATION RAs #7-0137 <br /> 1605 SOUTH EL DORADO STOCKTON, CALIFORNIA <br /> FEBRUARY 22, 1991 <br /> (All results in parts-per-million) <br /> i <br /> Sample Sample <br /> ID Depth" Total Petroleum Aromatic Volatile Organics <br /> (Feet) Hydrocarbons <br /> Gasoline Benzene Toluene Ethyl- Total <br /> benzene Xylenes <br /> BI-4 205 0 19 0 007 0 001 0 002 0 022 <br /> BI-6 305 026 0 034 0 001 0 026 006 <br /> 61-7 36 0 8 Oil 024 0 032 019 <br /> 131-8 40 5 16,000 63 1,300 360 2,000 <br /> Bl-9 46 < < 0 006 < 0 014 <br /> B1-10 51 < < 0 005 < 0 081 <br /> B2-4 205 < 0 007 0 004 < 0 003 <br /> B2-6 305 < 033 0 008 < 0 081 <br /> B2-7 355 0 2 0 037 0 006 < 0 042 <br /> B2-8 405 0 3 Oil 0 003 < 0 025 <br /> B2-9 455 < 0 003 0 002 < 0 002 <br /> 132-10 51 < < < < < <br /> NOTE < = Below Practical Quantitation Reporting Limits (PQL) per Tri-Regional Board Staff Recommendations for Preliminary Evaluation and Investigation of <br /> Underground Tank Sites (August 10 1990) (PQL for BTEX = 0 005 ppm TPH, as gasoline and diesel = 1 0 ppm) <br /> Drilled depth along augers at 30 degrees from vertical Actual vertical depth is less <br /> Aegis Environmental Inc <br /> 91 0441November 11 1993 <br />