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ems• <br /> NSTITUENTS IN NV <br /> TABLE 1 CONCENTRATIONS (ppmv)OF PETRO T ARHDING WAY BO OCYDROCARN OTON,CALIFORNIAELL VAPORS, <br /> FORMER HEVRON'SS 9-1918, 45 E <br /> Unidentified Total <br /> Ethyl- Peaks After Volatile <br /> Peaks Prior <br /> Well Date to Benzene Benzene Toluene benzene Xyl esbons <br /> enes Benrene H droc <br /> 41 160 3,500 4,700 <br /> V 1 11/14/90 510 110 390 4,200 <br /> 110 360 39 150 3,100 <br /> V1 11/14/90 450 15 ND 5 33 78 <br /> V 1 11/29/90 20 5 ND 20 <br /> ND ND ND ND 2 <br /> V1 12/5/90 L0 ND ND ND ND ND <br /> V 1 1/21191 2 ND ND ND ND <br /> vi 1/29/91 ND ND ND ND N <br /> NI] D ND ND 2 <br /> 2 1 ` <br /> V1 2126191 ND ND ND ND ND {' <br /> V1 2/26/91 1 <br /> 360 4,200 6,700 <br /> V2 11/14/90 920 200 1,000 68 360 4,200 6,800 '. <br /> V2 11/14/90 830 200 141 71 13 57 150 <br /> V2 11/29/90 32 ND 41 ND 220 <br /> ND 34 2 10 55 130 <br /> V2 12/5/90 120 ND 38 2 17 33 <br /> V2 1/21191 39 4 ND 2 k 43 <br /> V2 1/29191 36 ND 33 180 <br /> V2 2126/91 95 <br /> ND 33 2 17 <br /> k70 1,800 5,100 <br /> 11/14/90 1,900 240 940 0 4,600 <br /> V3 V3 11/14/90 600 230 1,100 47 200 2,400 <br /> Notc: ppmv - Concentrations are in parts Per million on a volumetric basis. <br /> ND - No concentration measured greater than 1 ppm. <br /> stren.rronratote - _ <br /> i <br /> t{ <br /> 3 <br /> i <br />