I began my career as a graduate student with the USGS in the Arkansas District in Little Rock, Arkansas and worked on a variety of groundwater modeling and contamination studies in Arkansas and Nebraska before becoming the Studies Section Chief in the Montana District in 1996. In 2007, I became Director of the Montana Water Science Center, which was combined with the Wyoming Water Science Center i
Education and Certifications
B.S. Geology, 1985, University of Arkansas Fayettteville: Fayetteville, AR, United States
M.S. Geology, 1988, University of Arkansas Fayettteville: Fayetteville, AR, United States
Science and Products
International Hydrological Studies of Wyoming-Montana Water Science Center
Yellowstone River Compact Commission Seventieth Annual Report 2021
Yellowstone River compact commission sixty-sixth annual report 2017
Hydrogeology in the vicinity of the Nebraska management systems evaluation area site, central Nebraska
Temporal changes in the configuration of the water table in the vicinity of the management systems evaluation area site, central Nebraska
Simulated response of the High Plains aquifer to ground-water withdrawals in the Upper Republican Natural Resources District, Nebraska
Simulated response to future pumping in the Sparta Aquifer, Union County, Arkansas
Geohydrologic characteristics and simulated response to pumping stresses in the Sparta aquifer in East-Central Arkansas
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
- Science
International Hydrological Studies of Wyoming-Montana Water Science Center
The USGS serves as the lead agency for the United States to measure and apportion natural flows of the St. Mary and Milk Rivers according to the Boundary Waters Treaty of 1909 and the International Joint Commission Order of 1921. The division of water between the United States and Canada is overseen by the Accredited Officers of the St. Mary and Milk Rivers, who are appointed by their respective... - Publications
Yellowstone River Compact Commission Seventieth Annual Report 2021
No abstract available.AuthorsSeth Davidson, John M. Kilpatrick, Greg Lanning, Anna Stevenson, Michelle Gess, Loren M. Smith, David A. Schroeder, Mark Elison, Christine Schweigert, Laura RennickYellowstone River compact commission sixty-sixth annual report 2017
No abstract available.AuthorsJohn M. Kilpatrick, Patrick Tyrrell, Jan LangelHydrogeology in the vicinity of the Nebraska management systems evaluation area site, central Nebraska
No abstract available.AuthorsVirginia L. McGuire, John M. KilpatrickTemporal changes in the configuration of the water table in the vicinity of the management systems evaluation area site, central Nebraska
To improve understanding of the hydrologic characteristics of the shallow aquifer in the vicinity of the Management Systems Evaluation Area site near Shelton, Nebraska, water levels were measured in approximately 130 observation wells in both June and September 1991. Two water-table maps and a water-level-change map were drawn on the basis of these measurements. In addition, historical data from UAuthorsJohn M. KilpatrickSimulated response of the High Plains aquifer to ground-water withdrawals in the Upper Republican Natural Resources District, Nebraska
The U.S. Geological Survey, in cooperation with the National Soil Tilth Laboratory of the U.S. Department of Agriculture, Agricultural Research Service, conducted a study as part of the multi- scale, interagency Management Systems Evaluation Area (MSEA) program to evaluate the effects of agricultural management (farming) systems on water quality. Data on surface flow, tileflow, and streamflow in tAuthorsJ. M. Peckenpaugh, R.A. Kern, J. T. Dugan, J. M. KilpatrickSimulated response to future pumping in the Sparta Aquifer, Union County, Arkansas
AuthorsJ. M. KilpatrickGeohydrologic characteristics and simulated response to pumping stresses in the Sparta aquifer in East-Central Arkansas
A finite difference digital model of the Sparta aquifer system in Arkansas was developed to aid in assessing the geohydrologic characteristics of the aquifer as well as the impact of withdrawals on water-level declines in the aquifer. The model consists of two layers. The Cockfield aquifer, represented by layer 1, was modeled as a constant head surface. The Sparta aquifer is represented by layer 2AuthorsDaniel J. Fitzpatrick, John M. Kilpatrick, Harry McWreathNon-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.