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i <br /> ff TABLE 4 <br /> Western Stone Products-Tracy <br /> Estimated Residual Soil Contamination <br /> (Affected Area = 150 ft a) <br /> AFFECTED ESTIMATED ESTIMATED <br /> INTEiVAL . . IMASS:TPHD MASS$ENZENE <br /> ;. . SOIL.VOLUME... .TPH.D C.O.NC,. :BENZ,ENE CONC.._ <br /> 0-7' 1050 ft 3 750 ppm .005 ppm 78.75 lbs .00053 lbs <br /> 7-8' 150 ft 3 100 ppm .050 ppm 1.50 lbs .00075 lbs <br /> 8-11, 450 ft 3 20 ppm .050 ppm 0.90 lbs .00225 lbs <br /> 11-14' 450 ft 3 1 ppm .010 ppm 0.05 lbs .00045 lbs <br /> TOTALS: 2100 ft 3 81.20 lbs •00398 lbs <br /> (78 cu yds) (11.60 gals) (•00054 gals) <br /> (.07 fl oz) <br /> TABLES.WP <br />