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Bill

HB 1816

RELATING TO CESSPOOL CONVERSIONS.

2026 Regular Session Introduced by Della Belatti and 18 co-sponsors

Hawaii bill establishing cesspool-to-wastewater conversion requirements to prevent groundwater contamination and protect public health through regulated replacement timelines and standards.

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Bill Summary · HB 1816

Legislative bill overview

HB 1816 addresses the conversion of cesspools to compliant wastewater systems in Hawaii. The bill appears to establish requirements, timelines, or incentives for property owners to replace cesspools with approved alternatives like septic systems or connection to municipal sewer lines.

Why is this important

Cesspools pose significant environmental and public health risks, including groundwater contamination, nutrient pollution, and pathogen spread—particularly critical in Hawaii where most residents rely on groundwater for drinking water. This legislation directly impacts thousands of Hawaiian property owners who currently use cesspools and represents an effort to address decades of environmental degradation in the islands.

Potential points of contention

  • Cost burden: Cesspool conversion is expensive (often $10,000-$30,000+), raising questions about who bears financial responsibility and whether assistance programs for low-income owners are adequate
  • Implementation timeline: Aggressive conversion deadlines could create hardship for property owners unable to afford immediate upgrades or secure contractors, while lenient timelines may perpetuate pollution
  • Rural vs. urban disparities: Homeowners in areas without municipal sewer access may face different compliance challenges than urban residents, creating equity concerns
  • Regulatory scope: Unclear whether the bill exempts certain property types, addresses commercial properties, or includes funding mechanisms to offset private costs

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

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