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ATTACHMENT 5 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> POMBO PROPERTY <br /> 1755 WEST 11TH STREET,TRACY,CALIFORNIA <br /> PROJECT#7243.001 <br /> 95%UCL;GROUNDWATER NOT POTABLE <br /> INGESTION OF AND DERMAL CONTACT WITH non-VOCs IN GROUNDWATER-Non-cancer <br /> Concentration Permeability Oral Chronic Hazard <br /> Chemical Groundwater Constant Reference <br /> (Cr ) (Kp) Dose (RfDo) Quotient <br /> (m L) (cm/hr) (m -d) (--) <br /> Benzene ND 0.02 0.003 NA <br /> Eth lbenzene ND 0.07 0.1 NA <br /> Toluene ND 0.05 0.2 NA <br /> Xylenes,Total ND 0.08 2 NA <br /> Acenaphthene ND 0.09 0:06 NTA <br /> i Benzo(a)anthracene ND 0.81 NA ND <br /> Ch serve ND 0.81 NA ND <br /> Fluoranthene ND 0:36 0.04 ND <br /> Fluorene ND0.12 0.04 NTA <br /> Naphthalene ND 0.07 0.02 NTA <br /> Phenanthrene ND 0.27 0.3 ND <br /> i <br /> Pyrene ND 0.31 0.03 ND <br /> 0.0E+00 <br /> Hazard _ CW xIRW xFFxED <br /> (I/ °) X BW x AT x 365 day/yr + <br /> CW xSAxKpxETxEFxEDx (1I/1000cm') <br /> (1/RfD.) x <br /> BW x AT x 365 day/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 /> Avera in Time-Non-cancer ATnc 6 yrs <br /> Intake Rate(water) IRw 1 I./d <br /> Surface Area SAswr 7200 cm2 <br /> Exposure Time ETcr 0.14 hr/d <br /> Conversion Factor-L to cm3 C171.v„3 0.001 L M, <br /> pombo_based on UCLs1HQ gw non-VOCs Page I I of 18 <br />