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INTERMEDIATE CATIONS SHEET <br /> MTBE <br /> Vadose Vadose zone Vadose zone Vadose zone Vadose zone Total Air filled water filled Floor- <br /> Source- zone sod effective soil soil soil Thickness of porosity in porosity in porosity in wall <br /> budding au-filled total fluid intrinsic relative air effective vapor capillary capillary capillary capillary seam <br /> separation porosity saturation permeability permeability permeability zone zone zone zone perimeter <br /> LT O. Soe k km k„ LCZ na 62a k a X.-,.k <br /> (cm) (Cnr31cm) (cm11cm) (cm2) (cm2) law) (�) (cm'lcm) (cm31cm) (cm31cm) (cm) <br /> 103656 1 0 322 1 0 267 6 91 E-09 0 830 5 73E-09 163 04 0 489 0107 0 382 4 ODO <br /> Area of Capillary Total <br /> enclosed Crack- Crack Enthalpy of Henrys law Henrys law Vapor Vadose zone zone overall <br /> Bldg space to total depth vaporization at constant at constant at viscosity at effective effective effective <br /> ventilation below area below ave groundwater ave groundwater ave groundwater ave sod diffusion diffusion diffusion <br /> rate grade ratio grade temperature, temperature temperature temperature coefficient coefficient ooefficient <br /> nbu dug Ae q ZolaaHvTs HTs H'Ts µis D@"v Dena golf <br /> (cm31s) (cm2) (undless) (cm) (callmol) (atm m'lmol) — (unitless)-_ --(glcm-s) (cm21s) (cmm2ls) (cm21s) <br /> — - <br /> 3 39E+04 f 00E+06 5 OOE-03 15 7113 5 99E-04 2 46E-02 _180E-04 9 84E-03 3 26E-04 1 76E-03 <br /> Exponent of Infinite <br /> Average Crack equivalent source Infinite <br /> Diffusion Convection Source vapor effective foundation indoor source Unit <br /> path path vapor Crack flow rate diffusion Area of Peclet attenuation bldg risk Reference <br /> length length, conk radius into bldg, cceffiaent, crack number coefflGent, conk factor, cont, <br /> to to C r.,k Q.°d Dcrw* A..* exp(Per) a Cbu,um URF RfC <br /> {cm) (cm) (lrg1m) (cm) (cm'1s) (cm213) (cm) (undlessl (unrtEess} (Pg/m) (µ91m)' (mg1m) <br /> 1036 56 15 2 46E+01 125 8 33E+01 9 84E-03 5 00E+03 2 27E+07 4 91 E-05 1 20E-03 2 6E-07 3 OE+00 <br /> MTBE <br /> DTSC I HERD DTSC Indoor Air Guidance 7/19/2005 <br /> Last Update 1111103 Unclassified Soil Screening Model 1 47 PM <br />