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Jan 13, 2014

Revised Phase I Environmental Assessment Standard Issued

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On November 6, 2013, ASTM International issued its revised Phase I Environmental Assessment Standard, E1527-13, “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process.”  Perhaps the most significant change to the previous E1527-05 standard is the addition of subsurface vapor migration to the definition of “migration.”  This change will require a new layer of risk analysis by environmental professionals (“EPs”) conducting Phase I environmental site assessments in accordance with the revised standard.  We anticipate that the inclusion of vapor migration in the E1527-13 standard will result in an increased awareness of, and a heightened sensitivity to, the risks associated with conditions identified in Phase I reports.

View full memo, Revised Phase I Environmental Assessment Standard Issued

Authors and Contributors

Mehran Massih

Counsel

Real Estate

+44 20 7655 5603

+44 20 7655 5603

+1 212 848 7377

+1 212 848 7377

London

Jason Pratt

Counsel

Real Estate

+1 212 848 5449

+1 212 848 5449

New York

Practices