| Agrichemicals in ground water of the midwestern USA; relations to soil characteristics |
Burkart, M.R.; Kolpin, D.W.; Jaquis, R.J.; and Cole, K.J. |
Journal of Environmental Quality vol. 28, no. 6, pp. 1908-1915 |
1999 |
N/A
|
| Analysis of nitrate in near-surface aquifers in the midcontinental United States; an application of the inverse hyperbolic sine Tobit model |
Zen, S.T.; Liu, Shiping; and Kolpin, D.W. |
Water Resources Research vol. 32, no. 10, pp. 3003-3011 |
1996 |
N/A
|
| Application of a geographic information system in analyzing the occurrence of atrazine in groundwater of the midcontinental United States, pp. 601-610, <In>, Kovar, K.; and Nachtnebel, H.P., (eds.); Application of geographic systems in hydrology and water resources management |
Burkart, M.R.; and Kolpin, D.W. |
International Association of Hydrological Sciences, IAHS-AISH Publication no. 211, 653 pages |
1993 |
N/A
|
| Atrazine concentrations in near-surface aquifers; a censored regression approach |
Liu, Shiping; Yen, S.T.; and Kolpin, D.W. |
Journal of Environmental Quality vol. 25, no. 5, pp. 992-999 |
1996 |
N/A
|
| Geographic and temporal distribution of herbicides in surface waters of the upper midwestern United States, 1989-90, (abstr.), p. 10, <In>, Mallard, G.E.; and Aronson, D.A., (compls.); U.S. Geological Survey toxic substances hydrology program; program and abstracts of the technical meeting |
Goolsby, D.A.; Thurman, E.M.; and Kolpin, D.W. |
U.S. Geological Survey, Open-file Report no. 91-0088, 133 pages |
1991 |
N/A
|
| Geographic and temporal distribution of herbicides in surface waters of the upper midwestern United States, 1989-90, p. 183-188, <In>, Mallard, G.E.; and Aronson, D.A., (compls.); U.S. Geological Survey toxic substances hydrology program; proceedings of the technical meeting |
Goolsby, D.A.; Thurman, E.M.; and Kolpin, D.W. |
U.S. Geological Survey, Water Resources Investigations no. 91-4034, 730 pages |
1991 |
N/A
|
| Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991 |
Kolpin, D.W.; Burkart, M.R.; and Thurman, E.M. |
U.S. Geological Survey, Water Supply and Irrigation Paper no. 2413, 34 pages |
1994 |
N/A
|
| Hydrogeologic, water-quality, and land-use data for the reconnaissance of herbicides and nitrate in near-surface aquifers of the midcontinental United States, 1991 |
Kolpin, D.W.; Burkart, M.R.; and Thurman, E.M. |
U.S. Geological Survey, Open-file Report no. 93-0114, 61 pages |
1993 |
N/A
|
| Pesticides in ground water; do atrazine metabolites matter? |
Liu, Shiping; Yen, S.T.; and Kolpin, D.W. |
Water Resources Bulletin vol. 32, no. 4, pp. 845-853 |
1996 |
N/A
|
| Pesticides in near-surface aquifers; results of the midcontinental United States ground-water reconnaissance, 1991-92, pp. 505-513, <In>, Morganwalp, D.W.; and Aronson, D.A.; U.S. Geological Survey Toxic Substance Hydrology Program; proceedings of the technical meeting |
Kolpin, D.W.; Goolsby, D.A.; Aga, D.S.; Iverson, J.L.; and Thurman, E.M. |
U.S. Geological Survey, Water Resources Investigations no. 94-4015, 1113 pages |
1996 |
N/A
|
| Pesticides in near-surface aquifers; results of the midcontinental United States ground-water reconnaissance, 1991-92, pp. 64-74, <In>, Goolsby, D.A.; Boyer, L.L.; and Mallard, G.E., (compls.); Selected papers in agricultural chemicals in water resources of the mid-continental United States |
Kolpin, D.W.; Goolsby, D.A.; Aga, D.S.; Iverson, J.L.; and Thurman, E.M. |
U.S. Geological Survey, Open-file Report no. 93-0418, 89 pages |
1993 |
N/A
|
| Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the Upper Mississippi River basin, 1993 |
Kolpin, D.W.; and Thurman, E.M. |
U.S. Geological Survey, Circular no. 1120-G, 20 pages |
1995 |
N/A
|
| Water-quality data for nutrients, pesticides, and volatile organic compounds in near-surface aquifers of the midcontinental United States, 1992-1994 |
Kolpin, D.W.; Zichelle, K.E.; and Thurman, E.M. |
U.S. Geological Survey, Open-file Report no. 96-0435, 47 pages |
1996 |
N/A
|
| Work plan for regional reconnaissance for selected herbicides and nitrate in ground water of the mid-continental United States, 1991 |
Kolpin, D.W.; and Burkart, M.R. |
U.S. Geological Survey, Open-file Report no. 91-0059, 18 pages |
1991 |
N/A
|