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TABLE 17 <br /> ESTIMATION OF Kd(SOILIWATER PARTITION COEFFICIENT)FOR VOCs IN SOILS <br /> MOUNTAIN HOUSE DEVELOPMENT SITE#6 <br /> Mountain House, San Joaquin County,California <br /> Koc foc Kd <br /> COPC Cs(mg/kg) (CM 3/g) (default=0.02) (cm 3/g) <br /> BTEX <br /> Benzene 0.00050 145.8 0.02 2.9 <br /> Ethylbenzene 0.055 446.1 0.02 8.9 <br /> Xylene(s) 0.0010 382.9 0.02 7.7 <br /> PAHs <br /> Acenaphthene 0.47 5,027 0.02 100.5 <br /> Acenaphthylene 0.19 NA NA NA <br /> Anthracene 0.17 16,360 0.02 327 <br /> Benza(a)anthracene 0.21 NA NA NA <br /> Benzo(a)pyrene 0.041 NA NA NA <br /> Benzo(b)fluoranthene 0.052 NA NA NA <br /> Benzo(g,h,i)perylene 0.033 NA NA NA <br /> Benzo(k)fluoranthene 0.047 NA NA NA <br /> Chrysene 0.68 NA NA NA <br /> Dibenz(a,h)anthracene 0.034 NA NA NA <br /> Fluoranthene 0.079 NA NA NA <br /> Fluorene 0.66 9,160 0.02 183 <br /> Indeno(1,2,3-cd)pyrene 0.016 NA NA NA <br /> Naphthalene 0.33 1,544 0.02 30.9 <br /> Phenanthrene 4.0 NA NA NA <br /> Pyrene 0.27 NA NA NA <br /> Equation: <br /> Kd=soil/water partition coefficient,cm 3/g(or,L-water/kg-soil) =Koc x foc <br /> Where: <br /> Koc=organic carbon partition coefficient,L/kg or cm3/g <br /> foc=fraction of organic carbon(default=0.02,Source:PEA Manual) <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> Cal/EPA=California Environmental Protection Agency <br /> cm'/g=Cubic centimeters per gram <br /> COPC=Constituent of potential concern <br /> DTSC=Department of Toxic Substances Control <br /> mg/kg=Milligrams per kilogram <br /> NA=Not applicable because chemical is considered non-volatile(PEA Manual) <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> VOCs=Volatile organic compounds <br /> Equation Source: <br /> PEA Manual,Figure 2.5 (Cal/EPA DTSC,June 1999). <br /> Koc from Regional Screening Level(RSL)Chemcial-specific Parameters Supporting Table May 2010 <br /> Page 1 of 1 From Science to so)V7lons <br />