The signs released by the U.S. Army Corps of Engineers warn of "low-level radioactive materials present" near Coldwater Creek in St. Louis. Federal officials plan to post warning signs along a ...
An undated photo from the 1980s, of two teenagers stepping on rocks and wooden planks on Coldwater Creek. The photo is from a scrapbook kept by Sandy Delcoure, who lived on Willow Creek in Florissant ...
Mandatory annual training for personnel who access radiation posted areas (non-radiation workers). Radioactive material and x-ray machines are safely used in a wide variety of research programs at the ...
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