Dissolved solids concentration in US aquifers
Detailed Description
Dissolved solids concentration in US aquifers used for drinking water. Dissolved solids were generally higher in the southwestern and central United States and lower in the East and Northwest.
Sources/Usage
Public Domain.
Circular 1360
USGS Circular 1361 "The Quality of Our Nation’s Waters: Water Quality in Principal Aquifers of the United States, 1991–2010"