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ATTACHMENT 3 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> PROJECT#7243.002 <br /> INGESTION,DERMAL CONTACT,AND INHALATION OF VOCs in GROUNDWATER-Cancer <br /> Concentration Oral Slope Inhalation Excess Cancer <br /> Chemical Groundwater Factor(SFo) Slope Factor Risk VOCs <br /> (Cw) (SFi) <br /> (mg/L) (mg/kg-d)-r (mg/kg-d)-t (--) <br /> Acenaphthene 0.0001 NA NA NA <br /> Benzo(a)anthracene ND 1.2 0.39 ND <br /> Chrysene ND 0.12 0.039 ND <br /> Fluoranthene ND NA NA ND <br /> Fluorene 0.0003 NA NA NA <br /> Naphthalene ND NA NA ND <br /> Phenanthrene 0.0002 NA NA NA <br /> Pyrene ND NA NA ND <br /> Toluene 0.0007 NA NA NA <br /> Xylene 0.0015 NA NA NA <br /> 0E+00 <br /> RisSF, x CW x IRvoC,ad„h x EF x EDadnit <br /> kvoc,Watet = R>skwater+ BW adult x AT x 365days/yr <br /> SF, x CW x IRvoC,child x EF x ED.hild <br /> + BWchild x AT x 365 days/yr <br /> Parameter Symbol Values Units <br /> Exposure Frequency EF 350 d/yr <br /> Exposure Duration-adult EDar 24 yrs <br /> Exposure Duration-child EDcr 6 yrs <br /> Body Weight-adult BWar 70 kg <br /> Body Weight-child BWcr 15 kg <br /> Averaging Time-Cancer ATca 70 yrs <br /> Intake Rate-adult IRvocar 2 L/d <br /> Intake Rate-child IRvoccr 1 L/d <br /> ND=Not detected <br /> NA=Not Available <br /> iAproject\7000s\7243\burns_pea update_copy.xls Page 10 of 18 <br />