Definitions for "Sole source aquifer"
An aquifer that supplies 50 percent or more of the drinking water of an area.
An aquifer that has been dsignated by EPA, under Section 1424(e) of the Safe Drinking Water Act, because the aquifer is a "sole or principal drinking water source" for an area where contamination of the aquifer could create a significant hazard to public health.
an aquifer that has been designated by the U