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TABLE 17 <br /> ORAL AND DERMAL HAZARD: RESIDENTIAL SCENARIO 2 <br /> ' SURLAND HOMES-BRIDLE CREEK <br /> Tracy,San Joaquin County,California <br /> COPC Cs m RfDo ABS Oral/Dermal H <br /> BTEX <br /> Toluene 0.0010 8.0E-02 0.1 3.2E-07 <br /> Eth (benzene 0.0070 1.0E-01 0.1 1.8E-06 <br /> Xylene(s) 0.0010 2.0E-01 0.1 1.3E-07 <br /> PAHs <br /> Acenaphthene 0.21 6.0E-02 0.15 1.1E-04 <br /> Anthracene 0.23 3.0E-01 0.15 2.5E-05 <br /> Benzo(a)anthracene 0.031 NA 0.15 NA <br /> ' <br /> Benzo(a)pyrene 0.0070 NA 0.15 NA <br /> Benzo b fluoranthene 0.055 NA 0.15 NA <br /> Benzo h i lene 0.078 NA 0.15 NA <br /> ' Benzo k fluoranthene 0.00067 NA 0.15 NA <br /> Ch Bene 0.110 NA 0.15 NA <br /> Dibenz a h anthracene 0.0067 NA 0.15 NA <br /> Fluoranthene 0.066 4.0E-02 0.15 5.3E-05 <br /> ' Fluorene 0.70 4.0E-02 0.15 5.6E-04 <br /> Naphthalene 0.61 2.0E-02 0.15 9.8E-04 <br /> Phenanthrene 0.88 NA 0.15 NA <br /> Pyrene 0.19 3.0E-02 0.15 2.0E-04 <br /> METALS <br /> Barium 223 2.0E-01 0.01 1.6E-02 <br /> Beryllium 0.93 2.0E-03 0.01 6.5E-03 <br /> Chromium 111 47 1.5E+00 0.01 4.4E-04 <br /> ' Cobalt 13 NA 0.01 NA <br /> Copper 122 NA 0.01 NA <br /> Lead 12 NA 0.01 NA <br /> Mercury 0.015 3.0E-04 0.01 7.0E-04 <br /> 1 <br /> Molybdenum 0.82 5.0E-03 0.01 2.3E-03 <br /> Nickel42 2.0E-02 0.01 3.0E-02 <br /> Vanadium 81 5.0E-03 0.01 2.3E-01 <br /> Zinc 113 3.0E-01 0.01 5.3E-03 <br /> ' Total Hazard Index: 2.9E-01 <br /> Equation: <br /> 1 Oral/Dermal HQ=([CS/RfDO]x[1.28 x 10-5])+([Cs/RfDo])x[1.28 x 1041 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=hazardquotient <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 /> Ecuation Source: <br /> PEA Manual,Table 2.3. <br /> Page 1 of l SAIE <br />