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Ecosystems Research Division

EPA On-line Tools for Site Assessment Calculation


   

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The components of OnSite are

  • Formulas for transport parameters (gradient, retardation factor, estimated dispersivity, seepage velocity, effective solubility, ...)
  • Simple transport models (one-dimensional transport, leaching from a NAPL source, plume diving)
  • Unit Conversions (hydraulic conductivity, Henry's Law)

This guide to the OnSite calculators contains

  • a step by step guide to common applications,
  • examples, and
  • background information and a reference for each calculator.
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