| Application of artificial neural networks to assess pesticide contamination in shallow groundwater GB Sahoo, C Ray, E Mehnert, DA Keefer Science of the Total Environment 367 (1), 234-251, 2006 | 101 | 2006 |
| Critical transition in critical zone of intensively managed landscapes P Kumar, PVV Le, ANT Papanicolaou, BL Rhoads, AM Anders, A Stumpf, ... Anthropocene 22, 10-19, 2018 | 64 | 2018 |
| Multiple-point statistical simulation for hydrogeological models: 3-D training image development and conditioning strategies AS Høyer, G Vignoli, TM Hansen, LT Vu, DA Keefer, F Jørgensen Hydrology and Earth System Sciences 21 (12), 6069-6089, 2017 | 53 | 2017 |
| Synopsis of current three-dimensional geological mapping and modeling in geological survey organizations RC Berg, SJ Mathers, H Kessler, DA Keefer Ilinois State Geological Survey Circular 578, 2011 | 48 | 2011 |
| Potential for agricultural chemical contamination of aquifers in Illinois: 1995 revision DA Keefer Environmental geology no. 148, 1995 | 44 | 1995 |
| Aquifer sensitivity to pesticide leaching: testing a soils and hydrogeologic index method E Mehnert, DA Keefer, WS Dey, HA Wehrmann, SD Wilson, C Ray Groundwater Monitoring & Remediation 25 (4), 60-67, 2005 | 17 | 2005 |
| Potential for agricultural chemical contamination of aquifers in Illinois DP McKenna, DA Keefer Open file series 1991-07R, 1991 | 16 | 1991 |
| Agricultural chemicals in rural, private water wells in Illinois: recommendations for a statewide survey DP McKenna, SC Schock, E Mehnert, SC Mravik, DA Keefer Cooperative Resources Report 11, 1989 | 16 | 1989 |
| Kane County water resources investigations: Final report on geologic investigations WS Dey, AM Davis, BB Curry, DA Keefer, CC Abert Open File Series 2007-07, 2007 | 11 | 2007 |
| Potential for aquifer recharge in Illinois DA Keefer, RC Berg Illinois State Geological Survey Map. Scale 1 (1,000,000), 1990 | 11 | 1990 |
| A study of trench covers to minimize infiltration at waste disposal sites K Cartwright, TH Larson, BL Herzog, TM Johnson, KA Albrecht, DL Moffett, ... Illinois State Geological Survey, 1987 | 11 | 1987 |
| Mass Balance of nitrogen and phosphorus in an agricultural watershed: The shallow groundwater component E Mehnert, WS Dey, HH Hwang, DA Keefer, TR Holm, TM Johnson, ... Open File Series 2005-03, 2005 | 10 | 2005 |
| Commentary--Three-dimensional Geologic Modeling: Challenging our Terminology and our Understanding of Geologic Maps RC Berg, DA Keefer Three-dimensional geological mapping for groundwater applications—Workshop …, 2004 | 10 | 2004 |
| An Initial Evaluation of the Impact of Pesticides on Groundwater in Illinois: Report to the Illinois Legislature DP McKenna, TJ Bicki, WS Dey, DA Keefer, E Mehnert, SV Panno, C Ray, ... Cooperative Resources Report 12, 1990 | 10 | 1990 |
| Three-dimensional geologic mapping for transportation planning in central-northern Illinois: Data selection, map construction, and model development RC Berg, ED McKay III, DA Keefer, RA Bauer, PD Johnstone, BJ Stiff, ... LH Thorleifson and RC Berg, conveners, Three-dimensional Geologic Mapping …, 2002 | 8 | 2002 |
| Evaluation of pesticide movement in a tile-drained soil DA Keefer University of Illinois at Urbana-Champaign, 1993 | 8 | 1993 |
| Nitrate leaching classes of Illinois soils DA Keefer Illinois Department of Energy and Natural Resources, Illinois State …, 1995 | 7 | 1995 |
| Numerical assessment of a landfill compliance limit BR Mensel, DA Keefer, RA Griffin, RC Berg Groundwater 29 (2), 218-224, 1991 | 7 | 1991 |
| Saline reservoirs as a sequestration target HE Leetaru, DG Morse, R Bauer, S Frailey, D Keefer, D Kolata, C Korose, ... An Assessment of Geological Carbon Sequestration Options in the Illinois …, 2005 | 6 | 2005 |
| A new device for collecting time-integrated water samples from springs and surface water bodies SV Panno, IG Krapac, DA Keefer Environmental & Engineering Geoscience 4 (3), 375-383, 1998 | 6 | 1998 |
