For nearly a month, hundreds of thousands of Iowans have not been allowed to water their lawns—even though there's no drought ...

Test strips, similar to those used in swimming pools, are cheap and readily available. Heavily agricultural areas are vulnerable to nitrate pollution in water, especially where aquifers are shallow.

Experts say the test strips don't usually measure the same part of the nitrate ion that Central Iowa Water Works uses to determine safe drinking water.

A nitrate test performed on Tuesday found the water at the Local 5 station was about 80 milligrams per liter.

Des Moines Water Works is facing challenges as elevated nitrate levels push its Fleur Drive facility to operate beyond its ...

Farmers often face tough decisions about how much nitrogen to apply to corn, especially when spring weather disrupts ...

The only way you’ll know is if you get tested,” said a representative for the nonprofit Valley Water Collaborative.

This factsheet focuses on how to correctly take End-of-Season Corn Stalk Nitrate Test to Optimize Nitrogen Management.

Proper use of this test can result in economic savings and reduce the likelihood of groundwater contamination by nitrate-nitrogen. Overview of the Pre-sidedress Nitrate Test and Application to ...

Citizen scientists in Iowa are monitoring nitrate levels in streams and drinking water through the Izaak Walton League's Nitrate Watch program. The data collected supplements state monitoring ...

Gov. Tina Kotek backed the bill to modernize Oregon’s failed groundwater pollution laws. Kotek has been active in trying to speed up response to the three-decades-old groundwater contamination crisis ...