The use of underground storage tanks (USTs) for storing petroleum products and other chemicals has been a common practice to enhance site operations.
EPA
Phase I ASTM Standard and the EPA Final Rule
On December 15, 2022, the United States Environmental Protection Agency (US EPA) issued the final rule that amended the All Appropriate Inquiries (AAI) Rule to reference ASTM E1527-21 Standard Practice for Environmental Site Assessments: Phase I Environmental Site...
Underground Storage Tanks: Regulations, Requirements and Expectations
UST Regulatory History In 1984, Congress directed the United States Environmental Protection Agency (EPA) to develop regulations for Underground Storage Tanks (UST) containing petroleum. The EPA issued federal regulations, effective December 1988, that delegated UST...


