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ON <br /> r - - <br /> - -.� July 28, 1988 AGS Job No. 38012-2 <br /> Former UNOCAL Service Station, Stockton, California <br /> 4 <br /> TABLE Z - <br /> RESULTS OF CHEMICAI. ANALYSES OF SOIL <br /> FROM THE GASOLINE TANK CAVITY <br /> Former UNOCAL Service Station No. 2859 <br /> 166 Pacific Avenue <br /> Stockton, California <br /> ORIGINAL EXCAVATION, MARCH 21, 1988 <br /> SAMPLE DEPTH ETHYL- TOTAL <br /> NUMBER (FEET) TPH BENZENE TOLUENE BENZENE XYLENES <br /> 5--0329-ISTP 16 582 0.60 6.50 10.40 39.10 <br /> 5-0329-2STP 16 38 0.19 <0.05 <0.05 1.01 <br /> 5-0329-3STP 16 2 0.14 <0.05 <0.05 <0.05 <br /> 5-0329-4NTP 16 23 0.27 1.31 0.62 4.05 <br /> 5-0329-5NTP 16 <2 0.13 <0.05 <0.05 <0.05 <br /> 5-0329-6NTP 16 <2 <0.05 <0.05 <0.05 <0.05 <br /> c <br /> BASE OF DEEPENED EXCAVATION, MARCH 29 AND APRIL 6, 1988 <br /> SAMPLE ETHYL- TOTAL ORGANIC <br /> NUMBER TPH BENZENE TOLUENE BENZENE XYLENES LEAD <br /> 5-0329-9A* 13 0.29 1.07 <0.05 1.32 NA <br /> 5-0406-13A 3 <0.05 <0.05 <0.05 <0.05 NA <br /> 5-0330-9B* NA NA NA NA NA <10 <br /> 5-0406-12A# 18 1.72 5.01 0.58 3.83 NA <br /> Results in parts per million <br /> E TPH = Total petroleum hydrocarbons <br /> < = Below laboratory limits of detection <br /> * = Depth of 26 feet below ground surface <br /> ** = Depth of 30 feet below ground surfaces. <br /> = Sidewall sample, depth of 28 feet below ground surface <br /> Sample designation: <br /> 5--0329-1STP <br /> Sample number <br /> Date sampled <br /> Soil sample <br /> 5 <br /> v <br /> AVR11490' G490SYSAms <br />