Conceptual Site Models For Contaminated

Supplemental Guidance: Screening and Evaluating Vapor ...

Feb 14, 2020 · contamination in development of a conceptual site model. This Supplemental Guidance ... buildings and is a frequent problem at contaminated sites. If uncontrolled, chemical ... models, such as the Johnson and Ettinger model, are not recommended for the initial screening of occu pied buildings. The following table shows the recommended AFs for

  Model, Site, Conceptual, Contaminated, Conceptual site