Laserfiche WebLink
In the case of the Santa Fe Railway Company site, site-specific partitioning studies were <br /> performed to determine the most soluble, therefore, most mobile constituents Therefore, <br /> based on the partitioning studies, tetradecane was chosen as a surrogate for the aged diesel <br /> fuel Tetradecane was chosen because it is the smallest and most water soluble of the <br /> constituents determined to be in the water from the partitioning studies <br /> 4.4 2 SESOIL Modeling <br /> SESOIL is a compartmental mathematical model designed to describe the long-term <br /> environmental fate of a chemical with respect to the following parameters <br /> • water transport <br /> • sediment transport <br /> • chemical migration to groundwater <br /> • soil quality <br /> The model uses algorithms to describe three cycles (1) hydrologic cycle, (2) sediment cycle, <br /> and (3) chemical fate cycle The hydrologic cycle models the site-specific hydrologic <br /> conditions expected at the site The sediment cycle accounts for surface runoff conditions <br /> The chemical fate cycle models the migration of chemicals through the soil column The <br /> hydrologic cycle controls the sediment cycle while both the sediment and hydrologic cycle <br /> control the chemical fate cycle <br /> The hydrologic cycle is based on a vertical water balance and accounts for the following <br /> processes <br /> • rainfall <br /> • infiltration <br /> • soil moisture <br /> • surface runoff <br /> • exftltratton <br /> • evapotranspiration <br /> • groundwater runoff, and <br /> • capillary rise <br /> G e600 MSAWAFE FN3L11u'05 26 93 4-6 c1omRnr' 1993 <br />