USGS - science for a changing world

USGS Multimedia Gallery

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Social Media

Multimedia Gallery Home | Audio

What is ground water?

Play the audio

[music fades in]

Welcome to CoreFacts, where we're always short on time and big on science. I'm Jessica Robertson. Today's question is ...

What is ground water?

Ground water is water that flows or seeps downward and saturates soil or rock, supplying springs and wells. Ground water often begins as precipitation and soaks into the ground where it is stored underground in rock crevices and in the pores of geologic materials, also known as aquifers. This process is similar to how water fills a sponge. The upper surface of the saturated zone is called the water table.

More information on ground water may be found at

And now you know. Join us again every weekday for a new CoreFact. For other CoreFacts, or for CoreCast, our in-depth science podcast, go to If you'd like to have a question featured on our show, give us an email at or a phone call at 703-648-5600. Remember, long distance fees do apply.

CoreFacts is a product of the U.S. Geological Survey, Department of the Interior.

[music fade out]

open embed url Embed this audio file


Title: What is ground water?

Description: Listen to hear the answer.


Date Recorded: 7/21/2008

Usage: This audio file is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit this audio.

USGS CoreFacts

File Details:

Suggest an update to the information/tags?

CoreFacts (Set) RSS Media RSS Special Announcement: CoreFacts Being Discontinued What can I do to be prepared for a landslide?
In: Podcasts collection

podcast icon

Tags: 2008 July groundwater water



Browse More: Audio Collections | Audio Sets


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Image Gallery Webmaster
Page Last Modified: Wednesday, January 09, 2013