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Drinking-water quality and variations in water levels in the fractured crystalline-rock aquifer, west-central Jefferson County, Colorado
1 online resource (v, 52 pages) : illustrations, maps.
by Dennis C. Hall, U.S. Geological Survey, and Carl J. Johnson, Jefferson County Health Department ; prepared in cooperation with the Jefferson County Health Department.
GPO Cataloging Record Distribution Program (CRDP).
Includes bibliographical references (pages 33-35).