water quality

Eighty-three environmental groups have signed a letter to the Department of Health and Human Services and Environmental Protection Agency demanding action on "critically high" nitrate levels in Iowa drinking water.

The period for public comment on Iowa's impaired waterways report closes this week.

A pair of Iowa congressional races in this year's midterm elections could determine who controls the U.S. House.

The Iowa Legislature faces a deadline this week on a series of bills that seek to clean up the state's rivers and streams.