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TABLE 7 <br /> CARCINOGENIC TOXICITY CRITERIA(CANCER SLOPE FACTORS) <br /> FORMER VERNALIS PUMP STATION <br /> Vernalis, San Joaquin and Stanislaus Counties, California <br /> Oral Cancer Slope Inhalation Cancer <br /> Factor Slope Factor <br /> COPC in Soil (mg/kg-day)-1 Source (mg/kg-day)-1 Source <br /> BTEX <br /> Toluene NA IRIS NA IRIS <br /> Ethylbenzene 1.1E-02 OEHHA 8.7E-03 OEHHA <br /> Total Xylenes NA IRIS NA IRIS <br /> PAHs <br /> Acenaphthene NA IRIS NA IRIS <br /> Benzo(a)anthracene 1.2E+00 OEHHA 3.9E-01 OEHHA <br /> Benzo(a)pyrene 1.2E+01 OEHHA 3.9E+00 OEHHA <br /> Benzo(b)fluoranthene 1.2E+00 OEHHA 3.9E-01 OEHHA <br /> Benzo(g,h,i)perylene NA IRIS NA IRIS <br /> Benzo(k)fluoranthene 1.2E+00 OEHHA 3.9E-01 OEHHA <br /> Chrysene 1.2E-01 OEHHA 3.9E-02 OEHHA <br /> Dibenz(a,h)anthracene 4.1E+00 OEHHA 4.1E+00 OEHHA <br /> Fluoranthene NA IRIS NA IRIS <br /> Fluorene NA IRIS NA IRIS <br /> Indeno(1,2,3-cd)pyrene 1.2E+00 OEHHA 3.9E-01 OEHHA <br /> Naphthalene NA IRIS 1.2E-01 OEHHA <br /> Phenanthrene NA IRIS NA IRIS <br /> Pyrene NA IRIS NA IRIS <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> Cal/EPA=California Environmental Protection Agency <br /> COPC=Constituent of potential concern <br /> EPA=United States Environmental Protection Agency <br /> IRIS=Integrated Risk Information System <br /> mg/kg=Milligrams per kilogram <br /> NA=Not available or not applicable <br /> OEHHA=Office of Environmental Health Hazard Assessment <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> Sources: <br /> IRIS information from the EPA on-line database(July 2010). <br /> OEHHA information from the Cal/EPA on-line Toxicity Criteria Database(July 2010). <br /> J Ip. The Benham Companies,LLC <br /> —��"j� A Wholly Owned Subsidiary <br /> X0-51`o <br /> Page I of 1 From Science to Salr bons <br />