Over the last 30 years, the area has increasingly become home to large-scale confined animal feeding operations, commonly called CAFOs, which keep large numbers of animals in tight conditions.
Following years of inaction on the Clean Water for Iowa Act, one Iowa lawmaker is looking to advance several smaller bills that would improve monitoring and strengthen permit requirements for large industrial farms.
The new rule, proposed Nov. 17, is the latest in a convoluted, decades-long fight over which streams and wetlands qualify as “Waters of the United States” and thus are regulated by the federal government under the Clean Water Act.
While Iowa takes most of the blame, nutrient loading of Great Plains waterways that flow into the Missouri River, then to the Mississippi River and eventually to the Gulf of Mexico are causing a literal dead zone in the Gulf that is steadily increasing in size.
For over a century, drainage tiles have played a significant role in Iowa agriculture. But tile systems have also been targets of criticism from environmentalists who point to tiles’ environmental impact. How much do you know about Iowa’s drainage tiles?
