TY - ADVS ED - Encyclopaedia Britannica Educational Corporation. TI - Groundwater PY - 1982/// CY - Chicago, Ill. PB - The Corporation KW - Hydrogeology N1 - Title from data sheet; Intended audience: Ages 14 through adult; Issued also as videorecording; Camera, editor, Bert Van Bork N2 - Explains how groundwater originates and illustrates various forms in which it occurs. Uses animated sequences to show geological formations that result from erosion or deposition of groundwater, the properties that characterize good aquifers, and the importance of groundwater as a natural resource ER -