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Updated: 04/21/2026
Closed

Unpermitted Wastewater Discharge from the Kaneohe Marine Corps Base Hawaii Wastewater Treatment Plant, O‘ahu

First Detected: 04/11/2026
Sign Removed: 04/21/2026
Closed: 04/21/2026
Cause: Heavy rain

The public is advised to avoid waters near the Kaneohe Marine Corps Base Hawaii Wastewater Treatment Plant's ocean outfall due to a discharge of wastewater that exceeded the daily maximum permitted fecal indicator bacteria level. Affected waters: Kailua Bay, Oahu Exceedance was discovered during routine sampling on 4/10/2026. Signs have been posted. The public is advised to remain out of the affected area until this advisory has been cancelled. For more information and updates, please see: https://eha-cloud.doh.hawaii.gov/cwb/#!/event/2047/details/view

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