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April 28, 1988 AGS Job No. 038012-1 <br /> Former UNOCAL ServiCe Station, Stockton, California <br /> TABLE 1 <br /> RESULTS OF CHEMICAL ANALYSES OF SOIL <br /> GASOLINE TANK CAVITY <br /> Former UNOCAL Service Station No. 2859 <br /> 1665 Pacific Avenue <br /> i <br /> Stockton, California <br /> ORIGINAL EXCAVATION, MARCH 21, 1988 <br /> SAMPLE DEPTH ETHYL- TOTAL <br /> NUMBER (FEET) TPH BENZENE TOLUENE BENZENE XYL.BNES <br /> S-0329-1STV 16 582 0.60 N 6.50 10.60 '19(:10 <br /> S-0329-2STP 16 38 0.19 <0.05 <0.05 1:OI <br /> S-0329-3STP 16 2 0.14 <0.05 <0.05 <0.05 <br /> S-0329-4NTP 16 23 0.27, 1:32 ;0.62' .4.OS <br /> S-0329-•5NTP 16 <2 0.13 <0.05 <0.05 <0.05 <br /> S-0329-6NTP 16 <2 <0.05 <0.05 . <0.05 <0.05 <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 /> S-0329-9A* 13 0.29 1.07 <0.05 1.32 NA <br /> S-0406-13A** 3 <0.05 <0.05 <0.05 <0.05 NA <br /> S-0330-9B* NA NA NA NA NA <10 <br /> S-0406-12A# 18 1.72 5.0i 0.58 3.83 NA <br /> Results in parts per million <br /> TPf` = Total petroleum hydrocarbons (EPA Method 8020) <br /> < = Below laboratory limits of detection <br /> * = Depth of 26 feet below ground surface <br /> ** = Depth of 30 feet below ground surface <br /> # - Sidewall sample, depth of 28 feet below ground surface <br /> , Sample Designations: <br /> j S-0329-1STP <br /> Sample number <br /> L.---Date sampled <br /> Soil <br /> 6 <br /> Applied GeOSysten7S — <br />