This interactive web map plots water-quality data from domestic and public-supply wells sampled by the USGS for the California GAMA Priority Basin Project, and allows users to download datasets.
Go to ToolGAMA Groundwater Quality Results Mapping Tool
![](https://f0b362.p3cdn2.secureserver.net/wp-content/uploads/2018/08/GAMA-Groundwater-Quality-Graphic.png?time=1721068321)