Use these definitions of important terms as you answer the Focus Question.
||A geologic formation that contains sufficient saturated permeable material to yield economically significant quantities of water to wells and springs.
||Something that flows out, such as the discharge of a pollutant from an industrial plant or a septic tank into surface or ground water.
||The soluble product obtained from the action of percolating liquid on the soil or landfill waste.
||The measure of the ability of porous material to transmit fluid.
||A zone of ground water that is contaminated by various chemicals and that often has an elongated shape, much like a smokestack plume.
||The proportion of the volume of a material that consists of open spaces.
||Effluent from septic tanks.
||The amount of a substance that can be dissolved in a liquid at a given pressure and temperature.