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Last updated: October 11, 2002
South Florida Restoration Science Forum

Hydrology

What is Aquifer Storage & Recovery?


ASR may be defined as the storage of freshwater in a brackish-water aquifer through wells during wet periods for subsequent retrieval from these same wells during dry periods. The freshwater forms a bubble within the aquifer around the ASR well, and can be retrieved when needed.

Where is the water stored?

illustration showing where the water is stored in the wet and dry seasons
Click on the image for a full-sized version. (Note: image will open in a new window.)

The Major Advantages of ASR include:
  • Minimal Land requirements
    (an acre or two per well)
  • Almost no evaporation or seepage losses
    (mixing losses instead)
  • Proven technology at Boynton Beach
    (up to 95% recovery)

These advantages translate into significantly lower costs per gallon of water stored.



map of South Florida showing where ASR wells have been drilled
  Click on the image for a full-sized version. (Note: image will open in a new window.) map of South Florida showing locations of proposed ASR wells


The C&SF; Restudy Project
proposes between 300 and 330 ASR wells to store up to 1.6 billion gallons of water.

Next What are the major components of an ASR system?
Back Back to the main ASR page


U.S. Department of the Interior, U.S. Geological Survey, Center for Coastal Geology
This page is: http://sofia.usgs.gov/sfrsf/rooms/hydrology/ASR/wherewater.html
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Last updated: 11 October, 2002 @ 09:42 PM (KP)