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1 <br /> • <br /> 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-Non-cancer <br /> Concentration Oral Chronic Inhalation <br /> Chemical Groundwater Permeability Reference Chronic Hazard <br /> (Cw) Constant (Kp) Dose(RfDo) Reference Quotient <br /> Dose(RfDi) <br /> (m /L) cm/hr) m /k -d (m /k -d) --) <br /> Acenaphthene 0.0001 0.09 0.06 0.06 2.2E-04 <br /> Benzo(a)anthracene ND 0.81 NA NA NA <br /> Chrysene ND 0.81 NA NA NA <br /> Fluoranthene ND 0.36 0.04 0.04 NA <br /> Fluorene 0.0003 0.12 0.04 0.04 1.0E-03 <br /> Naphthalene ND 0.07 0.02 0.00086 ND <br /> Phenanthrene 0.0002 0.27 0.3 0.3 NA <br /> Pyrene ND 0.31 0.03 0.03 NA <br /> Toluene 0.0007 0.05 0.2 1 0.11 6.4E-04 <br /> X lene 0.0015 0.08 2 2 1.0E-04 <br /> 2.0E-03 <br /> x CN, xlRw xEFxED + <br /> Hazard. = (1/1tID o) BW x AT x 365 day/yr <br /> x Cw x IRw,voc x EF x ED + <br /> (I/ ') BW x AT x 365 day/yr <br /> Cw xSAxKP xETxEFxEDx (1L/IOOOcm') <br /> (1/RfDo) x <br /> BW x AT x 365 days/yr <br /> Parameter Symbol Value Units <br /> Exposure Frequency EF 350 d/yr <br /> Exposure Duration ED 6 yrs <br /> Body Weight BW 15 kg <br /> Averaging Time-Non-cancer ATnc 6 yrs <br /> Intake Rate(water) IRw I L/d <br /> Intake Rate(inhalation) IRvoc I L/d <br /> Exposure Time ET 0.14 hr/d <br /> Surface Area SAswr 7200 cm2 <br /> Conversion Factor-L to cm3 CFI-cm3 0.001 L/cm3 <br /> ND=Not detected <br /> • NA=Not Available <br /> is\project\7000s\7243\bums_pea update_copy.xls Page 12 of 18 <br />