ground water, definition of

The supply of fresh water found beneath the Earth's surface, usually in aquifers, which supply wells and springs. Because ground water is a major source of drinking water, there is growing concern over contamination from leaching agricultural or industrial pollutants or leaking underground storage tanks.

• California is tapping water that rained 20,000 years ago to deal with epic drought
  California has been making headlines for the gravity of its drought. The Los Angeles Times reported that January was the driest month on record since 1895. Other sites including this one have explained that the Golden State has just one year of water...
• California is pumping water that rained on Earth 20,000 years ago
  California has been making headlines for the gravity of its drought. The Los Angeles Times reported that January was the driest month on record since 1895. Other sites including this one have explained that the Golden State has just one year of water...
• EPA to Provide Clean Drinking Water to Families Near Fracking Sites in Pennsylvania
  In a move that seems to admit the danger of hydraulic fracturing (or fracking) to ground water reserves, the EPA has decided to provide clean drinking water to four families in Dimock, Pennsylvania who say their water supply has been contaminated by a...
• Tech Talk: The Technology of Grouting
  For the last two technical talks I have been explaining how, by bolting rock layers around an opening, spraying concrete on the walls of the opening or a combination of both, one can stabilize openings underground...