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Bill

SB 639

RELATING TO UNDERGROUND STORAGE TANKS.

2026 Regular Session Introduced by Henry Aquino and 8 co-sponsors

SB 639 strengthens Hawaii's underground storage tank regulations to prevent environmental contamination and protect groundwater resources through enhanced oversight requirements.

Carried over to 2026 Regular Session.
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Bill Summary · SB 639

Legislative bill overview

SB 639 addresses regulations and oversight of underground storage tanks (USTs) in Hawaii. The bill has progressed through committee amendments and passed its second reading, currently carried over to the 2026 legislative session for further consideration in the WAL (Water and Land) committee.

Why is this important

Underground storage tanks pose significant environmental and public health risks, including soil and groundwater contamination from leaks. Proper regulation of USTs—particularly for petroleum products and hazardous substances—is essential for protecting Hawaii's limited freshwater resources and preventing costly cleanup operations.

Potential points of contention

  • Compliance costs: Stricter UST regulations may impose financial burdens on small businesses, gas stations, and facility operators required to upgrade or replace aging tanks
  • Implementation timeline: Determining whether compliance deadlines are realistic for existing tank owners versus newly constructed facilities
  • Enforcement mechanisms: Questions about adequacy of state resources to inspect, monitor, and enforce UST standards across the islands

Compiled from official sources — confirm details with the bill’s official record.

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