HI SB639

Requires owners or operators of underground storage tanks with confirmed releases to clean up jet fuel, jet fuel additives, and related compounds to levels below detection limits of the best available technology, with the goal of complete remediation

Establishes a rebuttable presumption that any detection of jet fuel or related compounds in groundwater near an underground storage tank after a confirmed release is the result of that release

Amends Hawaii Revised Statutes Section 342L-35 regarding response requirements for suspected or confirmed releases from underground storage tanks

Responds to concerns about groundwater contamination from jet fuel storage, specifically referencing the Red Hill Water Alliance Initiative and contamination of local drinking water sources

Takes effect July 1, 3000 (placeholder date indicating further legislative action needed)