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Surface- and Groundwater Interactions with Lake
Panasoffkee
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Location
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Background
Lake Panasoffkee is the largest lake in the Withlacoochee River basin.
Major headwater of the Withlacoochee River.
Groundwater inflow is a large component of the lake’s water budget.
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Shallow Hydrogeology
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Deep Hydrogeology
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ObjectiveAssess the hydraulic connection between Lake Panasoffkee and the underlying Upper Floridan aquifer
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Approach
• Establish areas of recharge/discharge potential to the Upper Floridan aquifer.
• Calculate the lake water budget.
• Determine the water chemistry of the lake, tributaries, springs, and groundwater system.
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Recharge/Discharge Potential
May 2008
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Recharge/Discharge Potential
September 2008
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Water BudgetStream and Rain Gages
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Water BudgetStream and Spring Gages
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Water BudgetEvaporation Raft
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Water BudgetSeepage Run – March ‘07
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Water Budget
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Approach – Hydraulic ConnectionWater Chemistry
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Water ChemistryMajor Ions
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Water ChemistryStrontium Isotopes
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Water ChemistryConceptual Model
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Products
http://fl.water.usgs.gov/publications/recentpubs