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  1. Groundwater - Wikipedia

    Groundwater is fresh water located in the subsurface pore space of soil and rocks. It is also water that is flowing within aquifers below the water table.

  2. What is groundwater? | U.S. Geological Survey - USGS.gov

    Groundwater is water that exists underground in saturated zones beneath the land surface. The upper surface of the saturated zone is called the water table. Contrary to popular belief, …

  3. Ground Water | US EPA

    Jun 17, 2025 · Ground Water Extent The extent of ground water refers to the amount available, typically measured in terms of volume or saturated thickness of an aquifer (body of ground …

  4. What is Groundwater? – The Groundwater Foundation

    Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers.

  5. Groundwater | Groundwater facts

    Groundwater is the water that fills cracks and other openings in beds of rocks and sand. Each drop of rain that soaks into the soils moves downward to the water table, which is the water …

  6. Groundwater | Description & Importance | Britannica

    Sep 19, 2025 · groundwater, water that occurs below the surface of Earth, where it occupies all or part of the void spaces in soils or geologic strata. It is also called subsurface water to …

  7. What Is Groundwater? | WWF | World Wildlife Fund

    Mar 1, 2022 · Groundwater is the water found underground in the cracks and spaces in soil, sand, and rock. It is held in aquifers—permeable water-bearing rock and/or sediment—and can be …