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Decision Analysis Model for Well Rehabilitation and Groundwater Development, Moses Lake, Washington

by R. H. Anderson, Golder Associates Inc, Northeast Redmond, United States,
W. J. Roberds, Golder Associates Inc, Northeast Redmond, United States,
D. Banton, Golder Associates Inc, Northeast Redmond, United States,



Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource?In Search of Solutions

Abstract:

A decision analysis model has been developed for evaluating various well rehabilitation strategies and long-term groundwater development alternatives, as well as various investigation programs, for a water system presently impacted by groundwater contamination. The model determines the most cost-effective alternatives for investigating and then maintaining and developing adequate well yields and water quality. The model appropriately considers the uncertainties in the following: the hydrogeologic/contamination scenarios and associated parameters; the existing well parameters; and the costs (capital and operating) and results (information regarding scenarios and changes in well parameters) associated with alternative investigation programs and rehabilitation/development programs. The model was applied to an actual case, in which it successfully discriminated among five investigation programs and nine rehabilitation/development programs.

Subject Headings: Groundwater pollution | Wells (water) | Rehabilitation | Water quality | Water pollution | Parameters (statistics) | Mathematical models | Washington | United States

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