Simulating the interactions of lakes, wells, and shallow groundwater, northwestern Waukesha County
Project Number: 9KH68
Project Chief: Charles Dunning
Project Topics: water use, lakes
Cooperators: Village of Chenequa, the Southeastern Wisconsin Regional Planning Commission, and the Wisconsin Department of Natural Resources
Period of Project: Completed
Ground Water Systems team
High-capacity wells will continue to be drilled across southeastern Wisconsin for numerous reasons, including residential and business growth, and the need for shallow water to be blended with deeper water of lesser quality. Pumping of ground water, particularly where diversion or consumptive use is substantial, has the potential to affect lake levels, flow to wetlands, and baseflow to creeks and rivers, as well as alter aquatic temperature characteristics. This is so because in hydrogeologic settings of southeastern Wisconsin, there is typically a direct connection between ground water and lakes, wetlands, and streams. Quantifying hydrologic changes resulting from ground-water pumping and assessing the effect on hydrologic and biological resources is a challenge faced by many communities and lake organizations across southeastern Wisconsin.
The objective of this study was to develop a groundwater-flow model for Beaver, Pine, Cornell, and North Lakes in northwest Waukesha County that will calculate the water budget of each lake under long-term average conditions. This model has been constructed as an inset from the regional Southeast Wisconsin model. This project will entail a limited amount of field work to determine the overland flow between the lakes and collect local hydraulic and hydrogeologic information. The groundwater-flow model with include application of new packages from MODFLOW2000 and MODFLOW20005 (LAK3, SFR7, possibly LGR).
Publications and Reports
USGS Scientific Investigations Report 2010-5214 Feinstein, D.T., Dunning, C.P., Juckem, P.F., and Hunt, R.J., 2010, Application of the Local Grid Refinement package to an inset model simulating the interactions of lakes, wells, and shallow groundwater, northwestern Waukesha County, Wisconsin: U.S. Geological Survey Scientific Investigations Report 2010–5214, 30 p.