Cooperator: Stockbridge-Munsee Band of Mohican Indians
Project Chief: Charles P. Dunning
Location: Stockbridge-Munsee Reservation
Project Number: 9KH11
Period of Project: January 2002–September 2004
Problem
The Stockbridge-Munsee Indian Tribe of northeastern Wisconsin is interested in increasing their understanding of regional ground-water flow across the reservation. This understanding can be applied to a variety of water-management needs, and will enable the Tribe to make informed decisions about water quantity and quality issues.
Objective
The objective of this study is to develop an understanding of the regional ground-water flow system across the Stockbridge-Munsee Indian Reservation, and to provide the Tribe a tool to investigate a wide range of water-resource problems.
Approach
Water supply for the Stockbridge-Munsee Indian Reservation is provided primarily by shallow wells completed in unconsolidated glacial sediments. Because of the relatively uncomplicated nature of the glacial sediment aquifer on the reservation, the analytic element model code GFLOW has been used to simulate the ground-water/surface-water system across the Stockbridge-Munsee Reservation. Once calibrated, the model can be used to simulate and plot the direction of ground-water flow and ground-water travel time. The results of this study will provide the Tribe with a water-resources-management tool that will help assess the fate and transport of contaminants and provide the necessary information to plan well-head protection strategies for the community well systems. Tribal staff will benefit from this study by learning appropriate techniques to determine contributing areas and time of travel. The study will help determine areas where future data collection may be needed to understand the complexities of the ground-water-flow system.
Progress (October 2003–September 2004)
Hydraulic detail has been added to the regional GFLOW model around the Stockbridge-Munsee reservation area. Additional hydraulic head and streamflow targets have been compiled and added to the model. Additional streamflow measurements were taken at several locations across the reservation.
Model calibration has been completed, and the model is being used to address a number of water-management issues including evaluating new municipal locations. The results of this investigation are being summarized in a Scientific Investigations Report.
Plans (October 2004–September 2005)
The Scientific Investigations Report will be printed and
distributed.
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