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EPA On-line Tools for Site Assessment Calculation

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Required Inputs for the Retardation Factor Calculator


Input Parameters
Quantity Unit(s) Data Source Comment
Porosity dimensionless measurement, literature
Fraction Organic Carbon dimensionless measurement, literature
Chemical n/a n/a select "other" to enter
custom Koc below

Default Parameters
Quantity Unit(s) Data Source Comment
Solids Density g/cm3 OnSite default of 2.65 density of quartz
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Page author: Jim Weaver, of U.S. EPA, Office of Research and Development, Athens Georgia who last modified this content on: August 1, 2001

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