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' APPENDIX C <br /> HUMAN HEALTH SCREENING EVALUATION <br /> BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> ' PROJECT#5650 <br /> 0 <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 ND 0.09 0.06 0.06 ND <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 0.0001 0.12 0.04 0.04 3.4E-04 <br /> Naphthalene ND 0.069 0.02 0.00086 ND <br /> Phenanthrene 0.0003 0.27 0.3 0.3 NA <br /> Pyrene ND 0.31 0.03 0.03 NA <br /> ' I 3.4E-04 <br /> ' <br /> x CW xIR. xEFxED +Hazard w = (1/RID o) <br /> BW x AT x 365 day/yr <br /> x +CW x IR.,voc x EF x ED <br /> (1/RfD,) BW x AT x 365 day/yr <br /> (1/RfDo) x C. xSAxKP x ET x EF x ED x (IL/1000cm') <br /> ' <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 k <br /> ' <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 /> ' <br /> Exposure Time ET 0.14 hr/d <br /> Surface Area SAswr 7200 cm2 <br /> Conversion Factor-L to cm3 CF1_cm3 0.001 L/cm' <br /> ' burns\HQ gw VOCs Page 12 of 18 <br />