Summary statistics from the Nitrate Watch 2025 annual report are shared in reporting from Axios Des Moines. These statistics tell a story of high nitrate concentrations in waterways across Iowa…
This news article from cleveland.com discusses how heavy road salt usage in Ohio during winter storms is causing significant environmental damage, with chloride levels in some waterways reaching nearly 14 times…
The article from Investigate Midwest reports that while some Iowa rivers and lakes occasionally show short-term improvements in water quality, most remain persistently listed as “impaired” due to pollution from…
This article from 29 News reports an interview with the Izaak Walton League’s own Samantha Puckett who explains that road salt, while crucial for winter safety, poses severe and persistent…
This article from APG Media of Wisconsin gives a shout out to Winter Salt Week 2026 and discusses how winter road salt poses a growing threat to Wisconsin’s freshwater ecosystems,…
In late August, the Izaak Walton League of America voiced concerns over the U.S. Department of Agriculture’s reorganization plan. In a letter (PDF Document) to Secretary of Agriculture Brooke Rollins,…
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…
Denise and Larry O’Brien, organic farmers and founding members of the Nishnabotna Water Defenders, are teaching their neighbors in Atlantic, Iowa to monitor pollution in waterways with Nitrate Watch. Learn…
Residents in Central Iowa have been placed under a first-of-its-kind lawn watering ban in response to stress on the water utilities from nitrate pollution in water sources. Data and insight…

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.