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TABLE 11 <br /> ORAL AND DERMAL HAZARD: RESIDENTIAL SCENARIO 1 <br /> SURLAND HOMES-BRIDLE CREEK <br /> Tracy,San Joaquin County,California <br /> COPC Cs m RfDo ABS Oral/Dermal HQ <br /> ' BTEX <br /> Toluene 0.0010 8.0E-02 0.13.2E-07 <br /> Eth lbenzene 0.0070 1.0E-01 0.1 LSE-06 <br /> X lene s 0.0050 2.0E-01 0.1 6.4E-07 <br /> 1 PAHs <br /> Acenaphthene 0.29 6.0E-02 0.15 1.5E-04 <br /> Anthracene 0.26 3.0E-01 0.15 2.8E-05 <br /> Benzo a anthracene 0.19 NA 0.15 NA <br /> ' <br /> Benzo(a)pyrene 0.011 NA 0.15 NA <br /> Benzo b fluoranthene 0.056 NA 0.15 NA <br /> Benzo(g,h,i)perylene 0.21 NA 0.15 NA <br /> Benzo k fluoranthene 0.00067 NA 0.15 NA <br /> Ch Bene 0.11 NA 0.15 NA <br /> Dibenz a h anthracene 0.0073 NA 0.15 NA <br /> Fluoranthene 0.068 4.0E-02 0.15 5.4E-05 <br /> Fluorene 0.87 4.0E-02 0.15 7.0E-04 <br /> Naphthalene 1.9 2.0E-02 0.15 3.0E-03 <br /> Phenanthrene 1.2 NA 0.15 NA <br /> Pyrene 0.19 3.0E-02 0.15 2.0E-04 <br /> ' METALS <br /> Barium 230 2.0E-01 0.01 1.6E-02 <br /> Beryllium 0.94 2.0E-03 0.01 6.6E-03 <br /> Chromium III 48 1.5E+00 0.01 4.5E-04 <br /> Cobalt 14 NA 0.01 NA <br /> Copper 185 NA 0.01 NA <br /> Lead 40 NA 0.01 NA <br /> Mercury 0.019 3.0E-04 0.01 89E-04 <br /> ' <br /> Molybdenum I.0 5.0E-03 0.01 2.8E-03 <br /> 43 2. <br /> Nickel 0E-02 0.01 3.0E-02 <br /> Vanadium 82.0 5.0E-03 0.01 2.3E-Ol <br /> Zinc 143 3.0E-01 0.01 6.7E-03 <br /> ' Total Hazard Index: 3.0E-01 <br /> Equation: <br /> ' Oral/Dermal HQ=([Cs/RtDo]x[1.28 x 10-s])+[Cs/RfDo]x[1.28 x 10']x ABS) <br /> Where: <br /> RfDo=oral reference dose,mg/kg-day <br /> ' Cs=concentration in soil,mg/kg <br /> ABS=absorption fraction,dimensionless(Source:PEA Manual,Page A-6). <br /> HQ=hazard quotient <br /> 1 Abbreviations <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> COPC=Constituent of potential concern <br /> mg/kg=Milligrams per kilogram <br /> NA=Not Applicable <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> Eauation Source: <br /> ' PEA Manual,Table 2.3. <br /> Page 1 of 1 S •/E <br />