Pollution levels in Iowa's water have been abnormally high this winter. That's forcing the state's largest city, Des Moines, to run an expensive nitrate removal system that they usually only use in ...
Warming Winters Lead to More Nitrate Pollution in the Drinking Water Near Farms When pollution gets bad enough in the rivers supplying Iowa's largest city with drinking water, it costs Des Moines ...
When pollution gets bad enough in the rivers supplying Iowa's largest city with drinking water, it costs Des Moines around $16,000 a day to run a special system to filter out dangerous nitrates. It’s ...
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