Ohio is not the only state that is reviewing all sites that have trichloroethylene (TCE) contamination. Massachusetts Department of Environmental Protection (MassDEP) recently announced that is was going to review 1,000 closed sites with TCE contamination.  MassDEP will evaluate the sites "based on the current understanding of health risks, even if the site was previously

Vapor intrusion is the process where contamination in soil and groundwater volatilizes and enters indoor air in buildings.  Understanding and evaluating the risks to occupants of buildings with vapor intrusion issues has received dramatic new focus nationally in recent years.

In Ohio, scrutiny of vapor intrusion issues is at an all time high.  This post

With regard to industrial properties and brownfields clean ups, perhaps no issue clean up standard has garnered more attention and increased scrutiny than indoor air.  It looks like 2012 could be the year when EPA finally updates its decade old draft guidance. 

EPA never finalized its 2002 draft guidance on assessing indoor air risks ("OSWER Draft Guidance for Evaluating the