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ST. CHARLES — Dozens of private well owners from five counties filed through the St. Charles Community Center on Thursday to learn more about a resource they use daily: water from their private wells.

Oregon Rural Action's Ana Maria Rodriguez conducts a rapid test on a jar of water brought from Boardman, Ore.., which tested above the federal standard of 10 milligrams per liter. Monica Samayoa / OPB ...

The eyes of dead fish and the message “know what you drink” adorn a new billboard near Avoca that urges Iowans to monitor nitrate levels in their water. The billboard is the first of several that the ...

You've got questions about Central Iowa's water since officials have banned commercial and residential lawn watering due to high levels of nitrates in water sources. We've got answers. Sign up for our ...

DODGE CITY, Kan. (KSNW) — The City of Dodge City Public Works department was notified that on March 14, a water quality sample showed nitrate levels above the maximum level allowed for community ...

A federal judge has granted a preliminary injunction requested by the Environmental Protection Agency that will force Granger-area dairies to test for nitrates in nearby residential drinking water.

A Janesville resident said he thinks he’s got an overflow of nitrates in his tap water, and he said the foggy, green algae suddenly overtaking the water in his fish tanks prove it.