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Project Summary Sheet
Fiscal Year 2006 Study Summary Report
Study Title: Synthesis of the Regional Hydrogeologic Framework for the Floridan Aquifer System, Southern and Central Florida and Relevancy to Aquifer Storage and Recovery
Overview & Objective(s): Aquifer storage and recovery (ASR) in south Florida is proposed on a large scale in the Comprehensive Everglades Restoration Plan (CERP) as a cost-effective water-supply alternative that can help meet needs of agricultural, municipal, and recreational users while providing the water critical for Everglades ecosystem maintenance and restoration. In CERP, plans are to employ ASR on an unprecedented scale using the Upper Floridan aquifer of the Floridan aquifer system (FAS).
Synthesis and resolution of conflicting hydrogeologic frameworks of the FAS from previous studies in southern, west-central and east-central Florida is needed. Most of these previous studies were confined by water management district boundaries (SFWMD, SWFWMD, and SJWMD); and the last regional framework study, which was published by the USGS in the mid-1980's, has become dated and is controversial. Synthesis and resolution will require database development and use abundant old and newly available well data and new methods of display and analysis. Most of the FAS, its component aquifers and confining units will be mapped.
The purpose of a CERP funded "preliminary hydrogeologic framework" project was to provide a hydrogeologic framework of the FAS that will identify data gaps and be used in the development a regional numerical model of the aquifer system. Also, the results of this project will be used as a guide for the collection of additional data to be collected under the Regional ASR program. A final more expansive CERP hydrogeologic framework study is planned.
The objectives of this PES project is to: 1) publish a new regional synthesis and delineation of the FAS hydrogeologic framework, making it available to other workers who study the FAS in the various regions covered in the CERP study, and 2) provide maps of the Upper Floridan aquifer, the primary ASR target storage zone, allowing for better comparisons of existing ASR sites and their performance.
Status: Data collection and inventory and mapping are complete. All illustrations for the report have been drafted and the first draft of the report was completed in July, 2005 and is under editorial review.
Recent Products: A USGS Water-Resources Investigation Reports "Inventory and review of aquifer storage and recovery in southern Florida", WRIR 02-4036.
Planned Products: A Scientific Investigations Report entitled "Synthesis of the regional hydrogeologic framework for the Floridan aquifer system, southern and central Florida."
Specific Relevance to Information Needs Identified in DOI's Science Plan in Support of Ecosystem Restoration, Preservation, and Protection in South Florida (DOI's Everglades Science Plan): [See Plan on SOFIA's Web site: http://sofia.usgs.gov/publications/reports/doi-science-plan/]:
The results of this project will assist in better understanding the regional impacts of the large-scale CERP ASR program and local, utility-based ASR wells on the FAS flow system. And, it will provide for better comparisons of existing ASR sites and a means for linking ASR performance to the hydrogeologic setting. This project will be a joint effort between the USGS and a CERP project manager (Emily Richardson, SFWMD). Results of this study will also help the managers of the CERP program and utilities in locating, designing, and constructing ASR wells.
This study supports two of the projects listed in the DOI science plan. It supports the (1) Aquifer Storage and Recovery projects as it provides baseline information that could be used in water quality studies [p. 27] and (2) Comprehensive Integrated Water Quality Feasibility Study as its synthesis information could lead to a better understanding of the water quality impact of ASR activities on the natural system [p. 86].
U.S. Department of the Interior, U.S. Geological Survey
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Last updated: 04 September, 2013 @ 02:08 PM(KP)