In many places throughout the Central Valley, intense agricultural practices add over 740,000 pounds of nitrogen from fertilizers, combined with the almost 200 million pounds of manure produced daily ...

That will require the Iowa Department of Natural Resources to evaluate their sources of nitrate contamination — which threatens public drinking water — and develop plans to reduce it.

Around 40% of the wells tested showed a nitrate level exceeding 10 milligrams per liter, which is the level in water before adverse health effects are likely to occur, according to the U.S ...

Many Nebraskans Still Under Threat of High Nitrate in Drinking Water, Report Finds In 2023, nearly 29,000 households scattered across rural Nebraska received postcards instructing them how to get ...