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ATTACHMENT 5 <br /> RUKAN HEALTH SCREENING EVALUATION <br /> POMBO PROPERTY <br /> 1755 WEST 11TH STREET,TRACY,CALIFORNIA <br /> PROJECT#7243.001 <br /> 95%UCL;GROUNDWATER NOT POTABLE <br /> DERMAL CONTACT AND INCIDENTAL INGESTION OF SOIL-Non-.cancer <br /> 1 <br /> Concentration Absorption Oral ChronicHazard <br /> Chemical Soil(Cs) Fractions Soil Reference Quotient <br /> (ABSds) Dose(R1Do) <br /> (tn -d) (--) <br /> Benzene ND 0.1 0.003 ND <br /> Eth lbenzene 0.33 0.1 0.1 8.4E-05 <br /> Toluene 1.1 0.1 0.2 1.4E-04 <br /> Xylenes,Total 0.54 0.1 2- 6.9E-06 <br /> Acenaphthene 0.17 0.15 0.06 9.1E-05 <br /> Benzo(a)anthracene 0.024 0.15 NA NA <br /> Chrvsene 0.13 0.15 NA NA <br /> Fluoranthene 0.024 0.15 0.04 1.9E-05 <br /> Fluorene 0.63 0.15 0.04 5.0E-04 <br /> Naphthalene 0.5 0.15 0.02 8.0E-04 <br /> Phenanthrene 1.12 0.15 0.3 1.2E-04 <br /> Pyrone. 0.07 0.15 0.03 7.5E-05 <br /> 2E-03 <br /> Hazard, = (1/RfD,) x C.x IRS X EF x ED X 10'6 kg/mg <br /> BW x AT x 365day/yr <br /> + (1/RfD.) x C,,x SA x AF x ABS x EF x ED x 10.6 kg/mg <br /> BW x AT x 365 days/yr <br /> Parameter Symbol Values Units <br /> Exposure Frequency-ingestion EFi . 350 d/yr <br /> Exposure Duration ED 6 yrs <br /> Body Weight BW 15 k <br /> Averaging Time-Non-cancer ATnc 6 yrs <br /> Ingestion Rate IRs 200 m d <br /> Surface Area SAs 2000 cm2 <br /> Soil-to-Skin Adherence Factor AF 1 mg/crW <br /> Exposure Frequency-dermal contact EFdc 350 d/yr <br /> Conversion Factor from mg to kg CF,,; .k 1E-06 kg/mg <br /> �f <br /> pombo_based on UCLsIHQ soil Page 14 of 18 <br />