Aquifers currently being used as a source of drinking water or those capable of supplying a public water system. They have a total dissolved solids content of 10,000 milligrams per liter or less, and are not "exempted aquifers." (See: exempted aquifer .)
UNDERGROUND SOURCES OF DRINKING WATER
Meaning of UNDERGROUND SOURCES OF DRINKING WATER in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012