Ground Water Management for Wellhead Protection in a Confined to Semiconfined Aquifer, Salt Lake County, Utah

by Thomas E. Lachmar, Utah State Univ, Logan, United States,
Jeffrey W. Gadt, Utah State Univ, Logan, United States,
Craig B. Forster, Utah State Univ, Logan, United States,

Document Type: Proceeding Paper

Part of: Management of Irrigation and Drainage Systems: Integrated Perspectives


The 1986 Amendments to the Safe Drinking Water Act (SDWA) established the first nation-wide program to protect ground water resources used for public water supplies. The SDWA seeks to accomplish this goal by establishing state wellhead protection (WHP) programs. Under the SDWA each state must prepare a WHP program and submit it to the U.S. Environmental Protection Agency (EPA) for approval. As part of its implementation of the WHP program, EPA has conducted research studies in several different hydrogeologic settings. This paper presents the results to date of the case study in a confined to semiconfined aquifer setting. Published and field data have been collected on both the hydraulic properties and hydrochemistry of the ground water flow system within the Salt Lake Valley. These data are being used in conjunction with mathematical modeling to evaluate various ground water management practices within the context of the objectives of the WHP program, and to determine the best method(s) for delineating wellhead protection areas within the Salt Lake Valley in particular and in other confined to semiconfined aquifers in general.

Subject Headings: Groundwater management | Salt water | Lakes | Resource management | Water resources | Groundwater flow | Water supply | Water management | Utah | United States

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