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3 Looking Forward
Pages 41-44

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From page 41...
... Most or all of the injected water was removed without initial formation of a buffer zone, thereby lowering the recovery efficiencies compared with what could likely be achieved under a target storage volume approach. More research is needed at the Hillsboro site, where only 30 percent recovery was documented, to determine whether improvements in recovery can be achieved when a buffer zone is established prior to cycle testing and maintained throughout the subsequent cycle testing.
From page 42...
... Ecotoxicology and Ecological Risk Assessment Some of the largest uncertainties remaining after the ASR Regional Study are associated with the ecological risks of using recovered ASR water in the Everglades. The results of chronic toxicity testing to date suggest some cause for concern and a need for further analysis considering longer storage times and greater recharge volumes, as well as more sites.
From page 43...
... Also, this information needs to be coupled with an understanding of groundwater travel times and flow patterns and the locations of potential human exposure to determine the level of disinfection necessary to protect human health and meet regulatory requirements. Cost and Performance of ASR Compared to Alternatives The Regional Study examined an array of configurations to provide 1.7 billion gallons per day storage capacity for Everglades restoration, but the Technical Data Report lacks a comprehensive comparison of the costs and benefits of ASR technology with other storage alternatives.
From page 44...
... In contrast to pilot studies, which rarely provide restoration benefits, an IAR approach allows increments of proposed projects to move forward, providing tangible restoration benefits while resolving key uncertainties. Within an IAR strategy, decision-critical uncertainties that could be addressed by the project increment are clearly identified up front, so that subsequent implementation can be improved by knowledge gained.

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