PUBLIC BETA: See water-monitoring locations and local water quality reports. USA states and territories.1
This tool explores local water sources. For the quality of tap water delivered by a utility, see the excellent new tool by the Environmental Working Group.
About the water quality reports
The kind of results and test types can vary greatly for each report’s location and test date. It is often informative — and interesting — to explore the water quality of multiple sources near your areas of interest.
If you prefer the map version without access to the water-quality data, for some reason, you can find it here.