ST. JOSEPH — When the original infrastructure was built for the city of St. Joseph, a single pipe carried storm water and waste water into the river.

But in the 1950s, the federal government recognized the problem of sending untreated sewage to rivers and lakes and funded the construction of wastewater treatment plants across the country. The elimination of combined sewers, including measures to allow overflows during wet weather, was included as part of that effort.

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