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DRAFT <br /> L <br /> 3 Liters per cubic meters <br /> M <br /> VFWamb = H x10, L (1-2) <br /> Uair x s X LGW m <br /> 1+ <br /> WXDew <br /> ' where: <br /> VF,.b = Volatilization factor for groundwater into outdoor air (mg/m3-air <br /> per mg/L-water) <br /> H = Henry's Law constant, (cm3-H20/cm3-air), chemical-specific <br /> Ua;r = Wind velocity outdoors, (cm/sec), ASTM E 1739-95 <br /> s = Outdoor mixing height(cm), ASTM E 1739-95 <br /> LGW = Depth to groundwater ="cap + H, (cm), site-specific <br /> W = Width of outdoor source area, parallel to wind direction (cm), <br /> site-specific <br /> D s = Effective diffusion coefficient for soil between groundwater and <br /> soil surface (cm2 <br /> /sec) <br /> L <br /> s = Liters per cubic meters <br /> M <br /> heap +h,, <br /> cap hv <br /> Deff + Deff <br /> cap s <br /> where: <br /> 1 SOMA 99-2218 7 12/10/99 <br />