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Bill

SB 503

RELATING TO DAM AND RESERVOIR SAFETY.

2026 Regular Session Introduced by Stanley Chang and 5 co-sponsors

Establishes or strengthens Hawaiian dam and reservoir safety standards including inspections, maintenance protocols, and regulatory oversight to protect public safety and water infrastructure.

Re-Referred to WLA/CPN, WAM/JDC.
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Bill Summary · SB 503

Legislative bill overview

SB 503 addresses dam and reservoir safety in Hawaii by establishing or strengthening regulatory frameworks, inspection protocols, and maintenance standards for these critical water infrastructure assets. The bill aims to ensure public safety and prevent catastrophic failures that could endanger communities downstream from dams and reservoirs.

Why is this important

Hawaii's aging dam infrastructure poses potential risks to public safety, water supply reliability, and property. Robust safety standards are essential given the state's reliance on reservoirs for irrigation, drinking water, and hydroelectric power, particularly in areas where dam failures could affect populated regions or agricultural operations.

Potential points of contention

  • Cost allocation: Who bears the expense of inspections, repairs, and upgrades—private dam owners, state government, agricultural users, or ratepayers—remains a likely point of disagreement
  • Regulatory burden: Agricultural interests and private water companies may resist stringent new inspection and maintenance requirements as economically burdensome
  • Grandfather clauses: Determining which existing dams must immediately comply versus phased compliance timelines could create fairness disputes

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

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