Story by ALLISON KITE – 1/8/24, republished from the Missouri Independent Newspaper

Missouri Independent: An undated photo from the 1980s, of a child swinging from a rope into Coldwater Creek. The photo is from a scrapbook kept by Sandy Delcoure, who lived on Willow Creek in Florissant and donated the scrapbook to the Kay Drey Mallinckrodt Collection (State Historical Society of Missouri, Kay Drey Mallinckrodt Collection, 1943-2006).
More than 70 years after workers first realized barrels of radioactive waste risked contaminating Coldwater Creek, the federal government has started work to put up signs warning residents.
The U.S. Army Corps of Engineers said in a statement Monday that it was working with the Environmental Protection Agency to add signs along the creek to help it monitor areas “that may pose a risk if disturbed.”
Coldwater Creek has been contaminated for decades with radioactive waste left over from the World War II-era effort to build an atomic bomb. But though the creek winds through some of St. Louis’ busiest suburbs and past public parks and schools, the federal government had resisted calls to post signs warning visitors of the contamination.
“This is decades of potential exposure that could have been prevented that they drug their feet on,” said Dawn Chapman, co-founder of Just Moms STL, an organization formed to advocate for communities affected by St. Louis-area radioactive waste.
Despite the delays, Chapman said she’s thankful that the signs are finally going to be installed.
The St. Louis area has long struggled with a radioactive waste problem. Uranium for the Manhattan Project, the name given to the effort to develop the first atomic bomb, was refined in downtown St. Louis.
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