Around 500,000 gallons of sewage spilled into Columbia River from Vancouver facility

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Crews are cleaning up after sewage overflowed from a manhole in southwest Portland on Sunday.

About 675 gallons spilled from a manhole onto the street and into a storm drain near Southwest Illinois Street near 33rd Place. The storm drain connects to Fanno Creek.

Crews repaired the blocked sewer and determined that tree roots had caused the blockage.

People are advised to avoid contact with Fanno Creek in that area for at least 48 hours because of the possibility of increased bacteria in the water.

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