East Hawaii News

More Than 6,000 Gallons of Sewage Discharged Onto Hilo Roadway

August 1, 2022, 6:47 PM HST
* Updated August 1, 6:48 PM
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More than 6,000 gallons of wastewater were released Monday afternoon, Aug. 1, in the vicinity of two Hilo schools.

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The county Department of Environmental Management responded to a discharge of sewage from a manhole on Waiānuenue Avenue in the vicinity of Hilo High and Hilo Intermediate schools that started at about 12:15 p.m. Monday. Wastewater Division personnel arrived on the scene and were able to stop the discharge by about 2 p.m.

According to a press release, the contractor for a paving project in the area was notified about about water exiting the manhole and onto Waiānuenue Avenue. Crews from the Wastewater Division arrived at about 1:15 p.m.

An estimated 6,300 gallons of wastewater were released and traveled down the northside curb of the roadway and into a storm drain just makai of Laimana Street, near the intersection with Waiānuenue. The affected portion of Waiānuenue Avenue was disinfected with a water and chlorine solution.

The cause of the discharge was traced to the collapse of a section of a sewer main, which caused a partial blockage of the flow. Wastewater Division crews removed debris from the line and restored normal flow. A contractor will excavate around the failed line and replace the section starting at 8 a.m. Tuesday, Aug. 2.

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Warning signs were posted along Hilo Bayfront, and Wastewater Division personnel will sample at locations along Bayfront for contamination.

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The public should exercise caution and avoid the area of the spill if possible.

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