STATE LAWSUIT MAY BE LEGAL TEST FOR VALIDITY OF VAPOR INTRUSION MODELS

A recent lawsuit filed in a Pennsylvania state court where the plaintiffs are seeking damages for vapor intrusion and other contamination is raising legal questions about how private consultants and state regulators are using a controversial model that is the basis for EPA's and other states' vapor intrusion guides. "This is an example of how vapor intrusion may be handled by the defense to contest a model that has been used," one real estate attorney says. One source says many...