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Why the Fuss About Vapor Intrusion When We Have Such a Radon Gas Problem?

By Lawrence Schnapf, Principal, Schnapf LLC Ten years ago this month EPA issued is draft Vapor Intrusion Guidance that altered the approach to site remediation. The guidance was issued following a couple of high profile sites where relatively low concentrations of volatile organic compounds in...

U.S. EPA Hits Pause On CERCLA Vapor Intrusion Regulations

U.S. EPA has voluntarily withdrawn its proposed Hazard Ranking System ("HRS") rule that would have allowed regulators to list a site on the National Priorities List ("NPL") solely on the basis of the risks posed by vapor intrusion. The withdrawal occurred after the proposed rule had...