Actions
Incoming Resources
- Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993, by Dana W. Kolpin and E. Michael Thurman
- Time of travel and dispersion in a selected reach of Roberts Creek, Clayton County, Iowa, by D.W. Kolpin and S.J. Kalkhoff ; prepared in cooperation with the Iowa Department of Natural Resources, Geological Survey Bureau
- Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991, by Dana W. Kolpin, Michael R. Burkart, and E. Michael Thurman