When testing the safety of our groundwater, nitrate acts like our canary in a coal mine. By measuring nitrate levels in the water, we get a picture of how easily other contaminants from the surface may also be getting into our groundwater. This is especially important for protecting infants since they are more sensitive to drinking water contaminants than adults. data.web.health.state.mn.us/nitrate_wells #WeTrackThat #GWAW #MNData