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