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Surface- and Groundwater Interactions with Lake Panasoffkee

Surface- and Groundwater Interactions with Lake Panasoffkee. Location. 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. Shallow Hydrogeology.

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Surface- and Groundwater Interactions with Lake Panasoffkee

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  1. Surface- and Groundwater Interactions with Lake Panasoffkee

  2. Location

  3. 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.

  4. Shallow Hydrogeology

  5. Deep Hydrogeology

  6. Objective Assess the hydraulic connection between Lake Panasoffkee and the underlying Upper Floridan aquifer

  7. 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.

  8. May 2008 Recharge/Discharge Potential

  9. September 2008 Recharge/Discharge Potential

  10. Water Budget Stream and Rain Gages

  11. Water Budget Stream and Spring Gages

  12. Water Budget Evaporation Raft

  13. Water Budget Seepage Run – March ‘07 10/11/2010 13

  14. Water Budget 10/11/2010 14

  15. Approach – Hydraulic Connection Water Chemistry

  16. Water Chemistry Major Ions

  17. Water Chemistry Strontium Isotopes

  18. Water Chemistry Conceptual Model

  19. Products http://fl.water.usgs.gov/publications/recentpubs

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