Elevated nitrate levels in the Des Moines and Raccoon rivers prompted Central Iowa Water Works to start up its nitrate removal system this month. A network of water quality sensors shows a similar ...

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

DES MOINES, Iowa — Central Iowa is once again seeing elevated nitrate levels in its rivers, this time in the middle of winter. Last week, Central Iowa Water Works activated its nitrate removal ...

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 ...

Central Iowa Water Works says the nitrate removal facility is still running Monday.

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

Add Yahoo as a preferred source to see more of our stories on Google. Central Iowa Water Works says they have activated their nitrate removal facility due to heightened nitrate levels in the Des ...

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 ...