EPA Recognizes E1527-13 But Preamble Raises Specter of Retroactive LIability For Past Phase 1 Reports that Did Not Assess Vapor Intrusion
On December 30th, the federal Environmental Protection Agency (EPA) published a final rule in the Federal Register (78 FR 79319) recognizing the new ASTM E1527-13 phase 1 standard practice as an approved method for complying with the All Appropriate Inquires (AAI) rule. As explained below, while the preamble to the final rule is an improvement to […]