EPA Amending Standards for Phase 1 Environmental Site Assessments
The United States Environmental Protection Agency (USEPA) is set to amend the All Appropriate Inquiries Rule (AAI Rule), the standard for evaluating a property’s environmental conditions prior to purchase, which may impact a purchaser’s potential liability under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) for any contamination discovered at the property. Those affected by this amendment include both public and private parties who are purchasing potentially contaminated properties and wish to establish a limitation on CERCLA liability as bona fide prospective purchasers, contiguous property owners, or innocent landowners. In addition, any entity conducting a site characterization or assessment on a property with funding from a brownfields grant awarded under CERCLA Section 104(k)(2)(B)(ii) may be affected by this action. The AAI Rule first went into effect in 2006 and has been subject to amendments since that time. The current amendments will become effective on February 13, 2023, and will reference a new standard – “ASTM E1527-21” – that may be used to satisfy the requirements for conducting all appropriate inquiries under CERCLA. Significant changes within the new standard include, but are not limited to: Revised and new definitions to make requirements clearer than the prior 2013 standard Requirements for more specific information related to the subject property’s use, as well as historical research related...