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Aquifer Storage and Recovery (ASR) facilities have been used in Florida and throughout the United States for about 40 years. ASR facilities inject and recover treated and untreated groundwater, partially treated surface water and reclaimed wastewater. ASR technology can store more water than a typical aboveground reservoir. An ASR system also can provide large volumes of water over longer periods of time, increasing water supplies during seasonal and multi-year droughts.

Most ASR facilities in Florida store water in the upper Floridan Aquifer, primarily in areas where the aquifer is brackish or somewhat salty. The injected fresh water displaces brackish water in the aquifer to form a "freshwater bubble," which may be highly irregular in shape.

The District and the U.S. Army Corps of Engineers have successfully constructed and tested two pilot ASR systems along the Kissimmee River and the Hillsboro Canal as part of the Comprehensive Everglades Restoration Plan (CERP). The test results should provide a vast amount of data about the ASR concept and how it is proposed to be used in CERP. The final report on the pilot projects is available below.

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