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Pennsylvania Brownfields & Environmental Law Information and Developments in Brownfields and Pennsylvania Environmental Law

Tag Archives: Intrusion

USEPA Issues Vapor Guidance for Public Comment

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This afternoon, April 16, 2013, USEPA’s Office of Solid Waste and Emergency Response released for public input two draft vapor intrusion guidance documents: a general guidance for all compounds; and one focused on petroleum hydrocarbons released from underground storage tanks. The documents can be accessed at:  http://www.epa.gov/oswer/vaporintrusion. Public input must be submitted by May 24,… Continue Reading

Vapors and Phase I’s, More on the Revision of ASTM’s E 1527

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As indicated in a recent post, ASTM International has developed a revision of the Phase I protocol, Standard Practice for Environmental Assessments: Phase I Environmental Site Assessment Process (“E 1527‑05”) that will be issued this year. A topic being heatedly discussed, especially by consultants, is whether the revised E 1527 will require vapor intrusion evaluation… Continue Reading

Latest Developments in the Revision of Pennsylvania’s Vapor Intrusion Guidance

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In December 2012 we reported on some of the challenges created by the vapor intrusion pathway under the Act 2 brownfields program in Vapor Intrusion and Act 2 – Imperfect Together. This is an update.  On January 29, 2013, the Department convened a meeting of the vapor intrusion subcommittee of the Cleanup Standards Scientific Advisory Board… Continue Reading

Vapor Intrusion and Act 2 — Imperfect Together

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Vapor intrusion, the migration of a volatile chemical from subsurface contamination into the indoor air of a building, was not viewed as a significant exposure pathway in 1995 when Act 2 was written into law. It is viewed as significant now. The emerging importance of this pathway poses unique challenges for DEP and responsible parties under Act 2. It also… Continue Reading