Unraveling the radium riddle

Over the last several years, the city of Waukesha, Wis., has become the poster child for requests to divert water from Lake Michigan under the Great Lakes Compact, in part because it’s also the poster child for something else: Communities built on sandstone-based groundwater aquifers with higher-than-normal concentrations of radium, a radioactive contaminant that can increase the incidence of bone cancer. – See more at: http://news.wisc.edu/