AAI Changes

In November 2006, the EPA created a new set of standards to conduct All Appropriate Inquiries (AAI) through Phase I Environmental Site Assessments. AAI-compliant Environmental Site Assessments involve more research and interviews than ASTM 1527-00, the former Phase I standard. While both guidelines may still be accepted, AAI is the highest level of liability protection available.

In late 2013, ASTM updated its standard (1527-13). The EPA has confirmed this latest version complies with AAI regulations.

Gabriel is your complete AAI resource

  • Gabriel’s “traditional protocol” Phase I Assessments meet or exceed ASTM 1527-00
  • Gabriel’s AAI-compliant Phase I Assessments meet or exceed ASTM 1527-13
  • Gabriel’s staff meet or exceed all of the requirements for an Environmental Professional (EP) under the AAI rules

PDF For more details about the AAI changes

PDF AAI Comparisons: a list of specific differences between a traditional Phase I and an AAI-compliant Phase I

From our customers:

"Throughout our business relationship, Gabriel has consistently provided cost effective and quality environmental service with a professional team that has served and met our environmental testing and consulting needs with the highest of standards. Gabriel's experienced and professional staff have always worked hard to meet our needs and have continually earned our confidence through solid performance and not just promises."

James Skalon
Environmental Manager
Allied Tube & Conduit

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