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r - <br /> 1 <br /> Morita Brothers Service Station 7 November 6, 1992 <br /> ' concentration of 5 85 mg/kg at 30 feet to boring T14-4, which was drilled 15 feet west <br /> of the west side of the former 5,000 gallon unleaded gasoline tank TPPH as gasoline <br /> was not detected in boring TH-4 in samples from 20, 40, and 45 feet TPPH as gasoline <br /> ' was not detected to any of the samples analyzed from borings TH-2, TH-5, TH-6, and <br /> TH-7 <br /> ' Theoline constituent volatile aromatic benzene was detected in twenty-one of the <br /> gas Y <br /> ' thirty soil samples Benzene was detected at a concentration of 10 mg/kg at a depth <br /> of 30 feet in boring TH-4 Benzene was detected at a concentration of 016 mg/kg at a <br /> depth of 40 feet in boring TH-1 Benzene was detected at a concentration of 011 <br /> ' mg/kg at a depth of 30 feet in boring TH-2 Benzene was detected at a concentration <br /> of 011 mg/kg at a depth of 25 feet in boring TH-3 Benzene was detected at a <br /> ' concentration of 01 mg/kg at a depth of 45 feet in boring TH-4 The other sixteen <br /> samples which detected the presence of benzene, detected benzene at a concentration <br /> of less than 01 mg/kg <br /> ' The gasoline constituent volatile aromatic, toluene was detected in ten of the thirty <br /> soil samples Toluene was detected at a concentration of 1 3 mg/kg at a depth of 30 <br /> feet in boring TH-4 Toluene was detected at a concentration of 0 097 mg{kg at a <br /> depth of 45 feet to boring TH-4 Toluene was detected at a concentration of 0 041 <br /> mg/kg at a depth of 40 feet in boring TH-4 Toluene was detected at a concentration <br /> of 0 036 mg/kg at a depth of 35 feet in boring TH-3 The other six samples which <br /> detected the presence of toluene, detected toluene at a concentration of less than <br /> ' 0 015 mg/kg <br /> The gasoline constituent volatile aromatic, ethylbenzene was detected in four of the <br /> thirty soli samples Ethylbenzene was detected at a concentration of 016 mg/kg at a <br /> depth of 30 feet in boring TH-4 Ethylbenzene was detected at a concentration of <br /> ' 0 021 mg/kg at a depth of 25 feet in boring TH-3 Ethylbenzene was detected at a <br /> concentration of 0 007 mg/kg at a depth of 45 feet in boring T14-4 Ethylbenzene was <br /> ' detected at a concentration of 0 005 mg/kg at a depth of 30 feet in boring TH-2 <br /> EB-8101-3 9210-EO55 RPT <br />