Cooperator: Lac Courte Oreilles Indian Tribe of Wisconsin
Project Chief: Randy Hunt
Location: Lac Courte Oreilles Indian Reservation
Project Number: 9KH35
Period of Project: July 2002−December 2003
Problem
The Lac Courte Oreilles Tribe has concerns regarding possible reductions in springflow along Grindstone Creek due to development in the area. An understanding of the ground-water-flow system in the vicinity of the springs is needed to evaluate potential effects such as pumping on discharge from the springs and base flow in the creek.
Objective
The project objectives are to: (1) monitor streamflow in Grindstone Creek, (2) simulate the regional and local ground-water/surface-water system and the effects of hypothetical pumping on springflow and flow in Grindstone Creek.
Approach
The ground-water-flow system in the vicinity of Grindstone Creek was simulated with GFLOW, an analytic element ground-water-flow model. The parameter estimation model, UCODE, was used to optimize the GFLOW model calibration to measured streamflows and ground-water levels, including existing data and measurements made during this project.
Progress (July 2003–June 2004)
The ground-water-flow model was calibrated, and scenarios based on hypothetical annual pumping and maximum seasonal pumping were simulated. The parameter estimation code, UCODE, was used to estimate 95 percent confidence intervals around simulated reductions in base flow in Grindstone Creek for the pumping scenarios.
Plans (July 2004–September 2005)
The project has been completed.
Reports
None. |
