Hydrogeological Investigation of the Lower Floridan ...
Transcript of Hydrogeological Investigation of the Lower Floridan ...
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Hydrogeological Investigation
of the Lower Floridan Aquifer
in Polk County
Crooked Lake Site Update
Oct. 11, 2017 – Presentation to District’s Well
Drillers Advisory Committee
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Agenda
• Central Florida Water Initiative (CFWI)
• Project Overview
• Crooked Lake Status
• Communications
• Status of Related Investigations
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Project Video: WaterMatters.org/LFA
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A collaborative
regional water
supply planning
effort to protect,
develop, conserve
and restore central
Florida’s water
resources
Central Florida Water Initiative
(CFWI)
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Project Overview
•Assess the viability of the LFA as an alternative
water supply source
• 3-year testing program in 2 phases
•Phase 1
– initial drilling and testing
– installation of multiple monitor wells
•Phase 2
- Drilling and testing of test/production wells
- Aquifer performance tests:
• Aquifer characteristics
• Water quality7
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8Versa-Drill coring rig
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Crooked Lake LFA Site Update
• Project start January 2017
• Upper Floridan aquifer (UFA) and surficial
aquifer (SA) wells completed
• LFA coring ongoing
– Coring
– Packer tests
– Water quality testing
– Geophysical logging
– USGS Optical Borehole Imaging and age
dating9
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Coring Bit
HQ Casing
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10 foot cores
Removal of core sample
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Dolomite with infill of gypsum and
organicslimestone
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Limestone with laminations/gypsum
Limestone with infill of gypsum and
anhydrite
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Porous dolomite
Crystalline dolomite & anhydite
SA and
UFA
monitor
wells
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Storage of brackish
water
Disposal of
blended water
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SE Polk Production Zone
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Glauconite
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SE Polk Production Zone
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SE Polk Production Zone
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Target zone is the
LFA above MCU II
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Target zone is the
LFA below MCU II
The SE Polk
production zone
Target zone is the
LFA above MCU II
(below the GMU)
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Next Steps at Crooked Lake
• Complete LFA monitor well (below
MCU I) with Huss Drilling
• Select contractor for construction of
LFA dual zone monitor well (below
MCU II)
– January 2018: Request for Bids
– Summer 2018: Start construction
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Communications
• Video released July 21, 2017
• LFA webpage July 25, 2017
– WaterMatters.org/LFA
• Future workshops
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QUESTIONS and COMMENTS
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