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TABLE 5 CONCENTRATIONS OF HYDROCARBON CONSTITUENTS IN SOIL <br /> VAPOR AT FORMER EXXON RS 7-1050, 909 W. HAMMER LANE, <br /> STOCKTON CALIFORNIA 23 24 NOVEMBER 1987 <br /> H.j <br /> Peaks <br /> Prior to Total Detected <br /> Sample Depth Benzene Benzene Toluene Hydrocarbons <br /> Location ( ft) (ppm)d_ (ppm) _(ppm) ( m)a <br /> MW1 - 20 < i 550 1 ,250 <br /> MW2 - < 1 < 1 <5 <5 <br /> MW3. - 410 150 ' 11050 3,000 <br /> i MW4 - 60 10 700 1 ,500 . <br /> 4 MW5 — < 1 < 1 10 20 <br /> V1 17 < 1 <1 1 <2 <br /> V2 16.5 <1 < 1 < 1 <1 <br /> V3. 15. 5 <1 < 1 <1 < 1 <br /> V4 17 <1 < 1 < 1 < 1 E: <br /> s <br /> V5 18 < 1 < 1 5 < 10 <br /> V6 .23.5 <1 < 1 <1 C� i <br /> w:1 <br /> -E . ..; BLANK DATA <br /> is - <br /> Peaks <br /> Prior to <br /> Test Benzene Benzene Toluene <br /> Date Time (ppm)a (pPm) (212m) <br /> 23 Nov 1408 . <0. 1. <0.1 <0. 1 <br /> 24. Nov 1058 <0.1 <0. 1 <0. 1 <br /> 24 Nov 1 <br /> 417' C0. 1 <0. 1 <0:.1 � <br /> I. � 24 Nov 1610 <0. 1 ' <0. 1 <0..1 <br /> I- ladr <br /> PERCENTAGE OF STANDARD RECOVERED <br /> Test Standard , <br /> Date Time Benzenes_ Toluene <br /> -.23 Nov 1,421 100 100 <br /> 2.4 Nov - 1105 1.00 1.00 <br /> 2.4;'Nov.. 1314 90 95'. <br /> { <br /> i ; <br /> a. Quantification based on V-sec:ppm ratio for. benzene (see <br /> text) <br /> E <br /> a <br /> �. e25/71050/8-69/tb15 <br /> i� <br /> men <br />