HI SB1168

Requires the Department of Health to adopt rules eliminating the exemption for field-constructed underground storage tanks and tank systems under Hawaii Administrative Rules chapter 11-281.

Field-constructed tanks with capacity of 50,000 gallons or less must use authorized release detection methods; tanks exceeding 50,000 gallons must use specified detection methods including daily bulk tank tightness tests or automatic tank gauging systems combined with regular tightness testing.

New or replaced field-constructed tanks installed after July 1, 2015, must be secondarily contained and interstitial monitored; existing tanks must be upgraded by July 1, 2025, or permanently closed.

Tanks installed before July 1, 2015, must meet cathodic protection standards and corrosion assessments; vapor monitoring and groundwater monitoring cannot be used as primary release detection methods, with a five-year transition period for existing systems.

Effective July 1, 2015; addresses the Red Hill bulk fuel storage facility (187 million gallons capacity, located 100 feet above a primary drinking water source) and similar large field-constructed tank systems.