Urgent Call for Action at the National Convention
In Green Bay, the Izaak Walton League kicked off its national convention July 18-19 with an urgent appeal for action in the face of mounting challenges to conservation in the United…
Meet a Monitor: Catherine Pierce & Erica Lyon
By: Maggie Dombroski, Mid-Atlantic Save Our Streams Coordinator Catherine Pierce and Erica Lyon conduct Virginia Save Our Streams (VA SOS), Salt Watch, and Nitrate Watch monitoring in the Henrico County,…
‘Ag fertilizer runoff likely will force more drinking water restrictions’
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…
Meet A Monitor: Jo Ann Sadler
By: Heather Wilson, Save Our Streams Coordinator Jo Ann Sadler is a Nitrate Watch volunteer from rural northwest Iowa. Like many residents of rural Iowa, Jo Ann’s surroundings are dominated…
Tackling water pollution, amping up advocacy top the agenda for League’s national convention
Taking action to protect our air, water and the $1.2 trillion outdoor recreation economy has taken on new urgency across the U.S. “The nitrate water pollution crisis, the rollback of…
‘Atlantic couple teaches neighbors to test waterways’
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…
A “Salty Intervention”
By: Abby Hileman, Salt Watch Coordinator In February 2025, a Salt Watch volunteer visiting a gas station in Leesburg, Virginia stumbled upon a massive oversalting event. Having seen the consequences…
Now it’s our turn to fight for these lands
By Jared Mott, Conservation Director, Izaak Walton League — The trigger broke just before I expected it, exactly how you want it to. A hundred and sixty-eight yards in front…
Meet a Monitor: Aisha and Sasha
By: Abby Hileman, Salt Watch Coordinator Sasha and Aisha, sixth-grade students in the Roberto Clemente Math, Science and Computer Science magnet program, conducted an investigation into how proximity to roadways…

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.