Columbia Slough

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A combination of partially treated sewage and stormwater overflowed into the Columbia Slough from the City's wastewater treatment plant Wednesday night. [Read More]
The sewage overflowed for about 20 minutes, according to the Portland Bureau of Environmental Services, but it's unclear how much sewage went into the water.        ... [Read More]
The Portland Bureau of Environmental Services said the combination of sewage and stormwater overflowed from the city's wastewater treatment plant into the slough for about... [Read More]
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