Hawaii's wastewater treatment plant on Joint Base Pearl Harbor-Hickam experienced a partial bypass and released around 300,000 gallons of treated sewage into Mamala Bay last night.
Officials say it happened between 7 p.m. and 1 a.m.
The Navy says the public should not be concerned. The sewage was treated and was only missing the polishing sand filtration process. They say it was caused by a large amount of solids that clogged the sand filtration system.
Officials say it was released through a pipe that extends 1.5 miles off shore.
The Navy has notified the State Department of Health and is expected to have minimal human and environmental impacts.