NitrateSmart
Learn about nitrate in your drinking water
checking…
Water records human impact.
Nitrate is how you read it.
Check your community water system and how it compares.
Nitrate is a signal, not the whole picture. Low nitrate is good news, but not a clean bill of health.
Your address matches you with your community water system. How matching works
Where the data comes from
USGS
Nitrate background and geology
peer-reviewed
U.S. EPA
10 mg/L federal limit
regulation
State Programs
Compliance sampling
measured
Iowa health studies
5 mg/L benchmark
observational
Educational information, not medical or personal safety advice.