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groundwater water that is beneath the Earth's surface
surface water all bodies of fresh water, salt water, ice, and snow that are found above the ground
watershed the area of land that is drained by a river system
aquifer body of rock or sediment that stores groundwater and allows the flow of groundwater
runoff water that flows across the Earth's surface when there is an excess of precipitation
zone of saturation an area of soil or rock below the level of the water table where all the voids are filled with water
water table upper surface of the underground water or the upper boundary of the zone of saturation
porosity the amount of air space in a given amount of sediment
permeable the measure of how easily water can flow through an aquifer
pollutants Harmful substances in the air, water, or soil
agricultural runoff rain and snow carry pesticides and fertilizer into groundwater
subsidence Sinking of the ground due to water being pumped out
Created by: mvanderb