The Oregon Department of Environmental Quality slapped the city of Gladstone with a $6,400 fine because of raw sewage dumped into the Clackamas River back in 2012.
The DEQ said Gladstone discharged untreated sewage into the river on six occasions over 12 days, violating the state's rule that prohibits the discharge of raw sewage to state waters.
The discharges happened when Gladstone's sewage collection overflowed near Portland Avenue and West Clackamas Boulevard during rainstorms, said the DEQ.
According to the DEQ, nearly 250,000 gallons of raw sewage were discharged in total, and some of it went into the river.
The state prohibits discharges of untreated or partially treated sewage into the state waters because of health and pollution concerns.
The DEQ said that untreated sewage can be a public health threat through direct human contact as well as through contact with insects that have been in contact with the sewage.
It can also contaminate drinking water, harm aquatic life and impair recreational, commercial and agricultural uses of water, the DEQ said.
The city of Gladstone has until Wednesday, April 3 to appeal the penalty.
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