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TABLE 7 CONCENTRATIONSa OF TOTAL VOLATILE HYDROCARBONS <br /> IN SOIL VAPOR AT FORMER. EXXON RS 7-1050, 909 <br /> - WEST HAMMER LANE STOCKTON CA 13 MARCH 1990 <br /> i <br /> Depth TVH Flow Rate <br /> jvy Location {feet? (ppm) (c � <br /> A 14-16 ND 2 <br /> B14-16 ND 2 <br /> 14--16 <br /> C ND <br /> 19-21 ND 14 <br /> C 28-30 ND 20 <br /> D 14-16 ND <2 <br /> E28-30 ND 20 <br /> 14-16 ND 2 <br /> F 14-16 ND 2 <br /> G 8-10 ND <br /> I� G 14-16 <2 <br /> f ND 2 <br /> 28-30 100 3 <br /> H 28-30 <br /> H 19-21 ND <br /> 18 <br /> I ND 3 <br /> 14-16 ND <br /> I 19-21 4 <br /> ND 9 <br /> 28-30 75 4 <br /> I 32-34 ND <br /> 14-16 ND 20 <br /> J 1 2 <br /> 9-21 250 3 , <br /> 28-30 5,675 11 <br /> J 32-34 <br /> 18,200 20 <br /> 14-16 ND <br /> 2 i <br /> r 28-30 450 2 <br /> N 1.4-16 ND 2 <br /> MWO : 28-30 5,700 20 1 <br /> 28-58 ND <br /> MW2 . 28-5820 <br /> 50 20 <br /> J MW3 2$-58 19,425. 20 <br /> MW4 28-58 625 20 1 <br /> MW5 28-58 ND 20 <br /> a. Collected by EVAX Technologies, Inc. <br /> � <br /> Notes Location i <br /> vapor probe or. monitorin <br /> g-we11---indid location -as-gre. ; Depth - <br /> perforated range of probe ? <br /> or screened interval of well' at sampling location; TVH - r <br /> total volatile hydrocarbons as propane' {C3F�8 ) on a <br /> volume/volume basis; Flow Rate - volumetric flow rate in f <br /> cubic feet per hour extracted at the extraction point; ND <br /> j - below detection limit of 25 ppm.. <br /> e42/71050/7-90/t7. <br /> �D}Z <br /> MIN I' Jjjj1jjj6 <br />