The Online Books Page

Books by Iowa. Department of Natural Resources. Geological Survey Bureau:

Books in the extended shelves:

• Iowa. Department of Natural Resources. Geological Survey Bureau: Agricultural chemicals in ground and surface water in a small watershed in Clayton County, Iowa, 1988-91 (U.S. Dept. of the Interior, U.S. Geological Survey :, 1996), also by Stephen J. Kalkhoff, Bryan D. Schaap, and Geological Survey (U.S.) (page images at HathiTrust)
• Iowa. Department of Natural Resources. Geological Survey Bureau: Availability and quality of water from the alluvial, glacial-drift, and Dakota aquifers and water use in southwest Iowa (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1992), also by R. E. Hansen, Paul E. Van Dorpe, C. A. Thompson, and Geological Survey (U.S.) (page images at HathiTrust)
• Iowa. Department of Natural Resources. Geological Survey Bureau: Iowa (U.S. Dept. of the Interior, Geological Survey ;, 1981), also by Iowa. Department of Transportation, Iowa Geological Survey, Geological Survey (U.S.). Water Resources Division, and Geological Survey (U.S.) (page images at HathiTrust)
• Iowa. Department of Natural Resources. Geological Survey Bureau: Occurrence and distribution of nitrate and herbicides in the Iowa River alluvial aquifer, Iowa--May 1984 to November 1985 (Dept. of the Interior, U.S. Geological Survey ;, 1989), also by Mark G. Detroy, Ronald L. Kuzniar, Geological Survey (U.S.), and University of Iowa. Hygienic Laboratory (page images at HathiTrust)
• Iowa. Department of Natural Resources. Geological Survey Bureau: Time of travel and dispersion in a selected reach of Roberts Creek, Clayton County, Iowa (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1992), also by D. W. Kolpin, Stephen J. Kalkhoff, and Geological Survey (U.S.) (page images at HathiTrust)
• Iowa. Department of Natural Resources. Geological Survey Bureau: Water quality of Corydon Reservoir before implementation of agricultural best-management practices in the basin, Wayne County, Iowa, September 1990 to September 1991 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1993), also by Stephen J. Kalkhoff, United States Department of Agriculture, United States Environmental Protection Agency, and Geological Survey (U.S.) (page images at HathiTrust)

Find more by Iowa. Department of Natural Resources. Geological Survey Bureau at your library, or elsewhere.