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ATTACHMENT 3 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> • BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> PROJECT#7243.002 <br /> INGESTION OF AND DERMAL CONTACT WITH non-VOCs in GROUNDWATER-Cancer <br /> Concentration Oral Slope Excess Cancer <br /> Chemical Groundwater Permeability Factor(SFo) Risk <br /> (Cw) Constant (Kp) <br /> (mg/L) (cm/hr) (mg/kg-d)-t (--) <br /> Acenaphthene 0.0001 0.09 NA NA <br /> Benzo(a)anthracene ND 0.81 1.2 ND <br /> Chrysene ND 0.81 0.12 ND <br /> Fluoranthene ND 0.36 NA ND <br /> Fluorene 0.0003 0.12 NA NA <br /> Naphthalene ND 0.069 NA NA <br /> Phenanthrene 0.0002 0.27 NA NA <br /> Pyrene ND 0.31 NA ND <br /> Toluene 0.0007 0.045 NA NA <br /> X lene 0.0015 0.08 NA NA <br /> 0E+00 <br /> IRW adult X EF x EDadult <br /> Risk Wa,e, — SF. x C. x BWadult x AT x 365 day/yr <br /> IRw child x EF x ED.hild <br /> + SF. x C. x BWchild x AT x 365 day/yr <br /> SAadult x Kp x EF x ED adult X ETadult x 1 L/1000 cm3 <br /> + SF. x C W x <br /> BWadult X AT x 365 days/yr <br /> SAchild X KP X EF X ED child X Erchild X I Li1000 Cm3 <br /> + SF,, x C w x <br /> BWohila x AT x 365 days/yr <br /> Parameter Symbol Values Units <br /> Exposure Frequency EFdw 350 d/yr <br /> Exposure Duration-adult EDar 24 yr <br /> Exposure Duration-child EDcr 6 yr <br /> Body Weight-adult BWar 70 kg <br /> Body Weight-child BWcr 15 kg <br /> Averaging Time-Cancer ATca 70 yr <br /> Intake Rate-adult IRwar 2 L/d <br /> Intake Rate-child IRwcr 1 L/d <br /> Skin Surface Area-adult SAswrar 23,000 cm2 <br /> Skin Surface Area-child SAswrcr 7,200 cm2 <br /> Exposure Time-adult ETar 0.25 hr/day <br /> Exposure Time-child ETcr 0.14 hr/day <br /> Conversion Factor from L to cm3 CFL_cm3 0.001 L/cm3 <br /> ND=Not detected <br /> NA=Not Available <br /> is\project\7000s\7243\bums_pea update_copy.xls Page 9 of 18 <br />