Paul F Juckem
Biography
Paul Juckem is a Hydrologist with the Wisconsin Water Science Center in Middleton, WI. His expertise in groundwater flow modeling is used in studies of regional water resource assessments, groundwater/surface-water interaction, and water quality characterization of lakes, streams, and aquifers. Current work involves: mapping the probability of contaminant plume extents using Analytic Element groundwater flow models and Monte Carlo techniques, evaluating effects of water diversions on water levels in northern Wisconsin lakes and relationships between water level and water quality in shallow lakes, assessing water resources of U.S. Forest Service lands in Wisconsin, monitoring nutrient loading in riverine systems, and evaluating fecal indicator bacteria occurrence and transport at Lake Michigan beaches.
EDUCATION
M.S. in Geology - University of Wisconsin-Madison. Thesis: 'Spatial Patterns and Temporal Trends in Groundwater Recharge in the Upper Coon Creek Watershed, Southwest Wisconsin,' 2003.
B.S. in Water Resources Management (groundwater emphasis), Geology minor – University of Wisconsin-Stevens Point, 1999.
PROFESSIONAL MEMBERSHIP
American Geophysical Union (1999 - present)
American Water Resources Association (1997 - 2006)
- Wisconsin State Section (1996 - present); Treasurer (2004 - 2008)
Association of Ground Water Scientists and Engineers (2000 - present)
CURRENT RESEARCH
- Groundwater-flow simulation and model calibration related to regional assessments and local groundwater/surface-water interactions
- Nutrient and contaminant movement in groundwater systems
- Evaluation of frac sand mining on water resources
- Nutrient and sediment transport in riverine systems
- Nutrient loading to lake systems
- Fecal indicator bacteria occurance and transport at freshwater beaches
Science and Products
Groundwater monitoring and research
Groundwater is an important water resource. The USGS collects information on the quality and quantity of groundwater and conducts advanced modeling of groundwater flow and groundwater/surface-water systems. The USGS also evaluates the effects of water-use, land-use, and climate change on groundwater, surface-water, and the ecosystems that rely on them.
Extraction and development of inset models in support of groundwater age calculations for glacial aquifers
The U.S. Geological Survey developed a regional model of Lake Michigan Basin (LMB). This report describes the construction of five MODFLOW inset models extracted from the LMB regional model and their application using the particle-tracking code MODPATH to simulate the groundwater age distribution of discharge to wells pumping from glacial deposits...
Feinstein, Daniel T.; Kauffman, Leon J.; Haserodt, Megan J.; Clark, Brian R.; Juckem, Paul F.
Metamodeling and mapping of nitrate flux in the unsaturated zone and groundwater, Wisconsin, USA
Nitrate contamination of groundwater in agricultural areas poses a major challenge to the sustainability of water resources. Aquifer vulnerability models are useful tools that can help resource managers identify areas of concern, but quantifying nitrogen (N) inputs in such models is challenging, especially at large spatial scales. We sought to...
Nolan, Bernard T.; Green, Christopher T.; Juckem, Paul F.; Liao, Lixia; Reddy, James E. Regional variability of nitrate fluxes in the unsaturated zone and groundwater, Wisconsin, USA
Process-based modeling of regional NO3− fluxes to groundwater is critical for understanding and managing water quality, but the complexity of NO3− reactive transport processes make implementation a challenge. This study introduces a regional vertical flux method (VFM) for efficient estimation of reactive transport of NO3− in the vadose zone and...
Green, Christopher T.; Liao, Lixia; Nolan, Bernard T.; Juckem, Paul F.; Shope, Christopher L.; Tesoriero, Anthony J.; Jurgens, Bryant C. Effects of water level and climate on the hydrodynamics and water quality of Anvil Lake, Wisconsin, a shallow seepage lake
Interannual differences in the water quality of Anvil Lake, Wisconsin, were examined to determine how water level and climate affect the hydrodynamics and trophic state of shallow lakes, and their importance compared to anthropogenic changes in the watershed. Anvil Lake is a relatively pristine seepage lake with hydrology dominated by...
Robertson, Dale M.; Juckem, Paul F.; Dantoin, Eric D.; Winslow, Luke A. Predicting redox-sensitive contaminant concentrations in groundwater using random forest classification
Machine learning techniques were applied to a large (n > 10,000) compliance monitoring database to predict the occurrence of several redox-active constituents in groundwater across a large watershed. Specifically, random forest classification was used to determine the probabilities of detecting elevated concentrations of nitrate, iron, and...
Tesoriero, Anthony J.; Gronberg, Jo Ann M.; Juckem, Paul F.; Miller, Matthew P.; Austin, Brian P.
Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity
The U.S. Geological Survey, National Water-Quality Assessment seeks to map estimated intrinsic susceptibility of the glacial aquifer system of the conterminous United States. Improved understanding of the hydrogeologic characteristics that explain spatial patterns of intrinsic susceptibility, commonly inferred from estimates of groundwater age...
Juckem, Paul F.; Clark, Brian R.; Feinstein, Daniel T.
Simulation of the regional groundwater-flow system of the Menominee Indian Reservation, Wisconsin
A regional, two-dimensional, steady-state groundwater-flow model was developed to simulate the groundwater-flow system and groundwater/surface-water interactions within the Menominee Indian Reservation. The model was developed by the U.S. Geological Survey (USGS), in cooperation with the Menominee Indian Tribe of Wisconsin, to contribute to the...
Juckem, Paul F.; Dunning, Charles P.
Simulation of groundwater flow and interaction of groundwater and surface water on the Lac du Flambeau Reservation, Wisconsin
The Lac du Flambeau Band of Lake Superior Chippewa and Indian Health Service are interested in improving the understanding of groundwater flow and groundwater/surface-water interaction on the Lac du Flambeau Reservation (Reservation) in southwest Vilas County and southeast Iron County, Wisconsin, with particular interest in an understanding of the...
Juckem, Paul F.; Fienen, Michael N.; Hunt, Randall J.
Hydrology and water quality of Shell Lake, Washburn County, Wisconsin, with special emphasis on the effects of diversion and changes in water level on the water quality of a shallow terminal lake
Shell Lake is a relatively shallow terminal lake (tributaries but no outlets) in northwestern Wisconsin that has experienced approximately 10 feet (ft) of water-level fluctuation over more than 70 years of record and extensive flooding of nearshore areas starting in the early 2000s. The City of Shell Lake (City) received a permit from the...
Juckem, Paul F.; Robertson, Dale M.
Simulation of the shallow groundwater-flow system in the Forest County Potawatomi Community, Forest County, Wisconsin
The shallow groundwater system in the Forest County Potawatomi Comminity, Forest County, Wisconsin, was simulated by expanding and recalibrating a previously calibrated regional model. The existing model was updated using newly collected water-level measurements, inclusion of surface-water features beyond the previous near-field boundary, and...
Fienen, Michael N.; Saad, David A.; Juckem, Paul F.
Evaluation of potential sources and transport mechanisms of fecal indicator bacteria to beach water, Murphy Park Beach, Door County, Wisconsin
Fecal Indicator Bacteria (FIB) concentrations in beach water have been used for many years as a criterion for closing beaches due to potential health concerns. Yet, current understanding of sources and transport mechanisms that drive FIB occurrence remains insufficient for accurate prediction of closures at many beaches. Murphy Park Beach, a...
Juckem, Paul F.; Corsi, Steven R.; McDermott, Colleen; Kleinheinz, Gregory; Fogarty, Lisa R.; Haack, Sheridan K.; Johnson, Heather E.
Water quality, hydrology, and simulated response to changes in phosphorus loading of Mercer Lake, Iron County, Wisconsin, with special emphasis on the effects of wastewater discharges
Mercer Lake is a relatively shallow drainage lake in north-central Wisconsin. The area near the lake has gone through many changes over the past century, including urbanization and industrial development. To try to improve the water quality of the lake, actions have been taken, such as removal of the lumber mill and diversion of all effluent from...
Robertson, Dale M.; Garn, Herbert S.; Rose, William J.; Juckem, Paul F.; Reneau, Paul C.