1. Hydrologic and water-quality conditions in the Cedar River alluvial aquifer, Linn County, Iowa, 1990-2019 Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2021 Format: Book Access & Availability: Loading
2. Transport of nitrogen and phosphorus in the Cedar River Basin, Iowa and Minnesota, 2000-15 Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2018 Format: Book Access & Availability: Loading
3. Water quality in the eastern Iowa basins, Iowa and Minnesota, 1996-98 Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2000 Format: Book Access & Availability: Loading
4. Agricultural chemicals in ground and surface water in a small watershed in Clayton County, Iowa, 1988-91 Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1995 Format: Book Access & Availability: Loading
5. Water quality of Corydon Reservoir before implementation of agricultural best-management practices in the basin, Wayne County, Iowa, September 1990 to September 1991 Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1993 Format: Book Access & Availability: Loading
6. Brine contamination of ground water and streams in the Baxterville Oil Field area, Lamar and Marion counties, Mississippi Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Jackson, Mississippi : U.S. Geological Survey, 1993 Format: Book Access & Availability: Loading
7. Quality of water and bottom material of streams that drain potential lignite mining areas in the outcrop area of the Wilcox Group in Mississippi Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Jackson, Mississippi : Department of the Interior, Geological Survey, 1989 Format: Book Access & Availability: Loading
8. Brine contamination of shallow ground water and streams in the Brookhaven Oil Field, Lincoln County, Mississippi Author/Creator: Kalkhoff, Stephen J., author Publication/Creation: Jackson, Mississippi : U.S. Geological Survey, 1986 Format: Book Access & Availability: Loading