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Updated: 04/10/2026
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Wastewater spill at the Waimea Wastewater Treatment Plant, Kaua‘i

First Detected: 04/10/2026
Sign Removed: --
Closed: --
Cause: Heavy rain

The public is advised to avoid waters in the vicinity of the Kikiaola Small Boat Harbor due to a spill of treated and disinfected wastewater from the Waimea Wastewater Treatment Plant holding tanks. Event: Spill of treated and disinfected wastewater Location: Waimea Wastewater Treatment Plant Estimated volume: >1,000 gallons Status of spill: ongoing Cause: heavy rain Warning signs have been posted. The public is advised to stay out of the affected water until this advisory has been cancelled. For more information and updates, please see:https://eha-cloud.doh.hawaii.gov/cwb/#!/event/2045/details/view

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