Little Village Magazine, an independent news & culture magazine published in Iowa City, Iowa, profiled the Nitrate Watch program in their November 4, 2025 issue. The article highlights how Nitrate…
What do you do when a fertilizer spill ravages your local stream, killing hundreds of thousands of fish across two states? For a group of clean water advocates in Southwest…
A news story from Iowa’s News Now in Cedar Rapids explains how the Izaak Walton League is making it possible for volunteers to test water bodies for nitrate and other…
Water quality is a major environmental concern in Iowa, and Heather Wilson, Midwest Save Our Streams coordinator for the Izaak Walton League, is helping residents take action through the Nitrate…
Iowa’s rivers, lakes, and farmland are the foundation of the state’s economy, environment, and way of life—but the program that monitors their health is now at risk. The University of…
The Nishnabotna Water Defenders, a water quality advocacy group in southwest Iowa, has erected a billboard near Avoca encouraging Iowans to “know what you drink” to prompt local residents to…
The problem of nitrate pollution in drinking water has swelled to a crisis in parts of the Midwest, California, the Gulf of Mexico and other places where agricultural runoff or…
Wings2Water has honored the Izaak Walton League’s Nitrate Watch Program with a “Water Warrior” recognition for its public engagement in testing nitrate levels in drinking water and waterways. Learn more…
The nitrate pollution at the root of Central Iowa’s lawn watering ban is not unique to Central Iowa. The issue – and its sources – are incredibly widespread. In this…

Your kit will include a bottle containing 25 nitrate test strips which you can use to test your water source(s) throughout the year. You’ll also receive postcards explaining how to use your nitrate test strips and how to share your Nitrate Watch results on the Clean Water Hub.
Your kit will include four test strips so you can test your waterway throughout the season. You’ll also receive a chart to help you interpret your results and a postcard with instructions for completing a Salt Watch test and reporting your findings.