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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, groundwater does …

  3. Groundwater is fresh water (from rain or melting ice and snow) that soaks into the soil and is stored in the tiny spaces (pores) between rocks and particles of soil. Groundwater accounts for nearly 95 …

  4. 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 level in the …

  5. 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.

  6. Groundwater | Description & Importance | Britannica

    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 distinguish it from surface …

  7. Statewide Groundwater Management - Department Of Water …

    Groundwater refers to water stored below the Earth's surface in aquifers, which include porous layers of sand, soils and clay that holds water. Stacked layers of aquifers make up a groundwater basin.

  8. National Groundwater Monitoring Network - Drought.gov

    The National Groundwater Monitoring Network (NGWMN) is a compilation of selected groundwater monitoring wells from federal, state, and local groundwater monitoring networks across the nation. …

  9. What is a groundwater? – The Institute for Environmental Research …

    Jun 16, 2025 · Groundwater is water that exists beneath the Earth’s surface, filling the spaces between soil particles and within fractures in rock formations. It’s a vital natural resource, often unseen but …

  10. Groundwater Resource Hub

    Groundwater is water held underground in the soil or in pores and crevices in rock. An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater doesn’t stay underground; it is …