USGS Groundwater Information
Feasibility of Regional-Scale Aquifer Storage and Recovery (ASR): Scientific Uncertainties
By Carl R. Goodwin
The concept of pumping water underground during times of excess supply and recovering the same water later to supplement supplies is attractive as a water management tool. In fact, aquifer storage and recovery (ASR) is functioning well in many localized areas throughout the country. The application of this concept on a regional scale is a logical next step and is being proposed as a key component of the Comprehensive Everglades Restoration Plan.
In areas of potential regional-scale ASR application such as south Florida, there are several significant scientific uncertainties that must be addressed to help assure that societal expenditures on such ventures are scientifically well founded and are afforded the greatest chance of success. Scientific uncertainties span a variety of disciplines, including hydrogeology, geochemistry, and microbiology. Uncertainties can be framed as questions whose answers are presently either unknown, only known in a very general way, or expected to be within a very large range of possibilities. Some examples are:
This presentation addresses and expands upon these scientific uncertainties, using schematics and animation sequences to better explain the concepts.
In George R. Aiken and Eve L. Kuniansky, editors, 2002, U.S. Geological Survey Artificial Recharge Workshop Proceedings, Sacramento, California, April 2-4, 2002: USGS Open-File Report 02-89
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