Central Iowa Water Works is removing nitrates and keeping levels below the EPA's threshold of 10 milligrams per liter. But what happens to those nitrates after they're removed from our water? KCCI's ...

Denitrification bioreactors are engineered systems designed to remove nitrate from contaminated waters, particularly those influenced by agricultural practices. By utilising a solid carbon ...

The Raccoon River is one of the sources of drinking water for Des Moines Water Works. The water utility says nitrate levels in the river are elevated due to a rainy spring, which washes nitrates off ...

It’s been a wet spring across Iowa, but water utilities in the Des Moines area are asking people to save water because nitrate levels are high in the Des Moines and Raccoon rivers. The rivers are a ...

Excessive use of fertilizers has fueled global food production, but it has also left behind a serious problem: nitrate pollution in soil and water. High nitrate levels threaten drinking water safety, ...

Spiking nitrate levels in the Des Moines and Raccoon rivers have prompted Des Moines Water Works to fire up its nitrate removal plant for the first time in five years. The plant ensures water is safe ...

AbstractExcess NO3– in streams is a growing and persistent problem for both inland and coastal ecosystems, and denitrification is the primary removal process for NO3–. Hyporheic zones can have high ...

DES MOINES, Iowa (AP) – For much of last year, Iowa’s most pressing agricultural problem was a drought that baked farm fields and parched crops, turning them brown and crumbly. Then the skies finally ...

For towns with only a few hundred residents, keeping tap water clean and safe can pose a crippling expense. The predicament is likely to become more common in western Kansas as farm chemicals seep ...

Iowans in communities around the state, primarily in central and southern regions, have been told to refrain from watering their lawns, washing their cars and filling swimming pools. Some utilities ...