As covered in my previous post, the ASTM International (ASTM) released a revised standard for conducting Phase I Environmental Site Assessments (Phase I ESAs) – ASTM E1527-21. While the E1527-21 standard has been available for use since November, it has not been officially included in the CERCLA regulations as satisfying the All Appropriate Inquiries
ASTM E1527-21
Revised Phase I ESA Standard Released – ASTM-E1527-21
By Jon Schaefer on
Posted in Environmental Compliance & Permitting
On November 1, ASTM International (ASTM) released a revised standard for conducting Phase I Environmental Site Assessments (Phase I ESAs). The new standard – ASTM E1527-21 – establishes new requirements for complying with the “All Appropriate Inquiry” (AAI) rule in 40 CFR Part 312. The AAI is an essential element of environmental due diligence used…