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Ground-water levels, flow, and quality in northwestern Elkhart County, Indiana, 1980-89
Ground water levels, flow, and quality in northwestern Elkhart County, Indiana, 1980-89
v, 66 pages : illustrations, maps ; 28 cm.
by Richard F. Duwelius and Cheryl A. Silcox ; prepared in cooperation with the Elkhart Water Works.
Includes bibliographical references (pages 43-44).
Water-resources investigations report ; 91-4053