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�(y a�✓l �f s> Case ZZ A,� <br /> TABLE 5 <br /> COMPARISON OF INDOOR AIR CONCENTRATIONS TO COMMERCIALANDUSTRIAL ESLs AND CHHSLs <br /> SIERRA LUMBER CASE NO. 1 <br /> 375 West Hazelton Avenue, Stockton, California <br /> (µFlim') <br /> pY TPH-g Benzene Toluene Ethylbenzene Total Xylenes <br /> / Sample ID Sample Date <br /> EPA 8015M EPA 8260B <br /> B4-Vapor 05/02/07 I0,000 ND<12.5 ND1I2.5 215 495 <br /> B5-Vapor 05/02/07 ND<2500 ND<12.5 ND<12.5 ND<12.5 ND<12.5 <br /> f CHHSLs 122 378,000 887,000 <br /> ESLs -- 29 000 280 180,000 580,000 58 000 <br /> Notes: <br /> µg/m3: micrgmms per cubic meter(parts per trillion) <br /> ESLs: SFRWQCB Environmental Screening Levels(commemial/industrlal land use only),November 2007 <br /> C CHHSLs: EPA California Human Health Screening Levels(commercial/industrial land use only),January 2005 <br /> ^_ry\� TPH-g: total petroleum bydrocarbous quantified as gasoline <br /> `✓ Fuel oxygenated compounds(MTBE,TAME,ETBE,DIPE&TBA)not detected from above laboratory analysis. <br /> Lead scavenger compounds(1,2-DCA&EDB)not detected from above laboratory analysis. <br /> is <br /> Advanced GeoEnvironmental,Inc. �J <br /> W <br />