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 ...

Nitrate levels in central Iowa rivers are unusually high for January, prompting early water treatment and raising concerns about costs and months ahead.

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

Iowa’s largest drinking water utility is pushing back against a federal decision to remove segments of the two central Iowa rivers that are its prime water sources from a list of waterways considered ...

Iowa’s drought of more than three years has significantly reduced the amount of farm fertilizers in the state’s streams, but that doesn’t guarantee a complete nitrate reprieve for the Des Moines metro ...

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 ...

For decades the city of Cold Spring, Minn., has wrestled with pollution from farms fouling its drinking water. Sealing contaminated wells and digging new ones didn't fix it. Changes to farm practices ...

Central Iowa Water Works nitrate removal facility is running again.

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, ...

WE’RE TRACKING THAT SNOW CHANCE AND THE COLDER TEMPERATURES HERE IN JUST A FEW MINUTES. NEW AT FIVE. NITRATE LEVELS ARE HIGH AGAIN IN CENTRAL IOWA’S MAIN DRINKING WATER SOURCES. AND NOW OFFICIALS ARE ...

Water pumps through tanks in the nitrate removal facility at the Fleur Drive Treatment Plant in Des Moines. Operating the system at full capacity can cost upwards of $16,000 per day. The drinking ...