State water officials have threatened to fine the City of Dunn thousands of dollars daily unless improvements are made to its leaky sewage system.
The city has been asked to enter into a contract with the state's Environmental Management Commission that would set a timeline for specific improvements. The proposal would allow the commission to levy fines or grant extensions if deadlines aren't met.
Some of the city's underground sewage pipes are at least 75 years old, and Dunn officials have been dealing will overflows for years.
During heavy rains, water that seeps into cracked pipes increases pressure and can overwhelm the sewage system.
Nearly 13 million gallons of diluted, untreated sewage spilled into or near the Black River and Mingo Swamp last year.