Themes include: bedrock geology, surficial geology, mineral resource data, groundwater aquifer data, geophysical and geochemical data, bedrock topography and overburden thickness, plus many more themes.

In the 1960s, more and more groundwater aquifers developed.

Hydraulic fracturing opponents fear that it can lead to contamination of groundwater aquifers, though the industry deems this highly unlikely.

This has led to the development of biochemical and biomolecular markers for assessing intrinsic biodegradation occurring in difficult to access groundwater aquifers.

Sea level rise brings risk to coastal groundwater aquifers, which increases vulnerability to saline intrusion (8).

The city's prosperity has been historically connected to its large underground aquifer.

This water can be stored in an underground aquifer and the heat extracted in winter using a heat pump.

The area was settled during the mid-1950s because of the discovery of an underground aquifer with very large deposits of sodium sulfate.

This system was replaced in 1982 with a well which gets water from an underground aquifer.

Date palms are planted in hollows where they can reach the underground aquifer.