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Updated: 11/23/2025
Closed

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

First Detected: 11/19/2025
Sign Removed: 11/23/2025
Closed: 11/23/2025
Cause: Unconfirmed

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 daily sampling by MCBH on 11/17/2025. MCBH has posted warning signs and will conduct daily sampling. The public is advised to remain out of the affected area until further notice. For more information, please see: https://eha-cloud.doh.hawaii.gov/cwb/#!/event/1953/details/view

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