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The partition coefficient is estimated using techniques outlined in the <br /> lifornia Site Miti ati n De i ion Tr (1986) . The partition coefficient is <br /> related to the organic carbon coefficient by: <br /> K = Kd oc e OC/100 <br /> I <br /> where K = organic carbon partition coefficient <br /> oc <br /> OC = soil organic carbon content <br /> The Kis usually estimated using an octanol-water partition coefficient <br /> oc <br /> which is more simply measured in the lab. Simplistically, the octanol-water <br /> coefficient is just the ratio of the concentrations of a substance in a <br /> container with a layer of octanol floating on a layer of water. The Kow is <br /> related to the Koc by: <br /> log Koc =- 0.937 log Kow - 0.006 (Lyman et al, 1982) . <br /> Assumed values for the parameters required to calculate the partition <br /> coefficient are: <br /> log Kow = 3.37 (Clement Associates, 1985) f <br /> OC = 1 percent <br /> The octanol-water coefficient was derived from the available literature, and <br /> the organic- carbon content of the soil was based on soil descriptions from <br /> boring logs on site. <br /> 4.5,2 Groundwater Transport to Receptor <br /> Transport of leachate to the receptor is via groundwater flow. The <br /> details of the calculations described in this section are included in Appendix <br /> K. At the site, leachate would migrate vertically to the surface of the water <br /> table and then be transported in the direction of groundwater flow. In order <br /> C <br /> 4-7 <br /> GGA/0179b <br /> I <br />