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projects > a retrospective and critical review of asr sites in south Florida > 2001 Proposal
Project Proposal for 2001
Continuing Project Work Plan - FY 2001
Program(s): Place Based Programs
Project/task summary: Regional aquifer storage and recovery (ASR) is proposed as a cost-effective water-supply alternative that can help meet water-supply needs of agri-cultural and municipal users and for the Everglades ecosystem. ASR technology has been tested and implemented in some areas of south Florida; several ASR pilot and operational facilities are in early phases of development. ASR wells have been constructed at about 24 sites in an area that extends southward from Charlotte, Glades, Okeechobee, and St. Lucie Counties. Two ASR facilities are operational (Boynton BeachPalm Beach County and the Peace River/Manasota Regional Water Supply AuthorityDeSoto County). One regional pilot facil-ity site has been selected for further testing and evaluation near the Hillsboro Canal in Palm Beach County, and other sites located along the northern edge of Lake Okeechobee are being considered. Elsewhere in south Florida, the status of utility-based ASR facilities ranges from planning to operational stages.
Statement of the problem: Few regional investigations of south Florida have been conducted, and the focus of those studies often addressed separate and often unrelated issues. Lacking a regional ASR framework to aid the decision-making process, ASR well sites in south Florida are analogous to "wildcat" wells often drilled during early exploratory phases of oil-field development. Little effort has been made to link information collected from each site as part of a regional analysis.
Primary factors driving the selection and placement of ASR wells in south Florida appear to be land availability, source-water quality, and source-water proximity (preexisting surface-water canal systems or surficial aquifer system well fields). It is uncertain whether hydrogeologic, hydrologic, and hydrochemical conditions at these same sites are regionally optimal.
Only a few regional or local hydrogeologic studies of the Upper Floridan aquifer have been conducted in south Florida, which include Bush and Johnston (1988), (Meyer) 1986, Miller (1986) Reese (1994), Reese (1999, in press), and Reese and Memberg (1999, in press). These studies did not consider whether ASR was regionally feasible.
Project objectives and strategy:
ACCOMPLISHMENTS, OUTCOMES, AND PRODUCTS
FY 2000 scientific accomplishments:
FY 2000 outcomes: Some ASR sites having performance problems or potential for problems have been identified. Knowledge of the factors contributing to these problems can assist municipalites and regulators in determining optimal site selection or contruction methods or both for future ASR sites.
FY 2000 products completed or nearly completed: Several GIS map illustrations have been completed (See description above).
FY 2000 stakeholder meetings or other outreach activities: Attendance at ASR issue team meetings, USGS-SFWMD ASR meeting, and workshop put on by the Army Corp of Engineers in Jackonsville concerning the implementation of ASR in the restudy (February 3 and 4, 2000). Met with Montgomery Watson, a consulting firms involved with ASR facilities construction and operation.
Visits to FDEP Underground Injection Control offices in West Palm Beach and Tallahassee were made for the purpose of collecting monthly operating reports and other data on ASR sites. And most of the ASR facilities in southern Florida were visited for the purpose of collecting additional information, checking site location, and opening and maintaining contact.
WORK PLAN (Time line FY 2000 to project end)
ACCOMPLISHMENTS, OUTCOMES, AND PRODUCTS
This analysis will provide scientists and ASR decision-makers involved with additional tools and data necessary to make informed decisions that incorporate constraining geologic, hydrogeologic, and hydrologic factors. Such an analysis may also help identify hydrogeologic, hydrologic, and hydrochemical criteria which make a particular area ideal for ASR development. This analysis may provide direction to future research activities.
The following hypothetical example illustrates a potential outcome. An existing ASR site has been identified where the confining units that underlie the principal target zone are comparatively thin or fractured; upwelling of underlying saline water contained within deeper water bearing rocks is likely during ASR recovery operation. An outgrowth of such an analysis is that regional mapping efforts subsequently focus on identifying adjoining areas where the underlying confining zone is relatively thick or unfractured.
FY 2001 activities: shown above.
FY 2000 deliverables/products: Illustrations (maps and tables) characterizing ASR wells and facilities in South Florida have been constructed. They will show key attributes for each ASR site for the purpose of comparisons between sites.
FY 2001 outreach: Participation in the South Florida Ecosystem Forum and decision-support presentations at ASR stakeholder meetings. Will meet with private and public concerns involved in ASR activities to identify on-site issues and problems.
New directions or major changes for FY 2001: Duration of project cut back from 3 years to 2 years.
PROJECT SUPPORT REQUIREMENTS
Major equipment/facility needs: no new needs.
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