FIGURES (CONTINUED) Figure 27. Statistical summary of IAS/ICU horizontal hydraulic conductivity data............................. 64 Figure 28. Statistical summary of IAS/ICU vertical hydraulic conductivity data................................ 65 Figure 29. Statistical summary of IAS/ICU total porosity data.......................................................... 65 Figure 30. Potentiometric surface of the Floridan aquifer system, September, 2005............................ 68 Figure 31. Floridan aquifer system overburden thickness.................................................. ................. 70 Figure 32. Thickness of the Upper Floridan aquifer (includes non-potable)...................................... 71 Figure 33. Statistical summary of UFA transmissivity data............................................... ................ 72 Figure 34. Statistical sum m ary of UFA storativity data..................................................... ................ 73 Figure 35. Statistical sum m ary of UFA leakance data ....................................................... ................. 73 Figure 36. Statistical summary of UFA horizontal hydraulic conductivity data................................. 74 Figure 37. Statistical summary of UFA vertical hydraulic conductivity data .....................................74 Figure 38. Statistical summ ary of UFA total porosity data.. .............................................. ................. 75 Figure 39. Interpretations of the M FCU in the study area ................................................. ................. 76 Figure 40. Statistical summary of MFCU vertical hydraulic conductivity data................................. 78 Figure 41. Statistical summary of MFCU total porosity data............................................................. 78 TABLES Table 1. Units mapped in this study. Map types are structure contour (surface) and isopach (thickness) .. 3 Table 2. Generalized correlation chart for units mapped within study area ......................................... 19 Table 3. Summary ofkrige interpolation statistics for each map ..........................................................29 APPENDICES Appendix 1. Commentary on Florida hydrostratigraphic nomenclature................................................99 Appendix 2. Explanation of revisions to FDEP-FGS Special Publication 28 aquifer definitions ......... 101 PLATES 1. Cross section locations 2. Wells used in this study 3. Closed topographic depressions in the study area 4. Cross section: A-A' Levy and Marion Counties 5. Cross section: B-B' Levy and Marion Counties 6. Cross section: C-C' Citrus and Sumter Counties 7. Cross section: D-D' Citrus and Sumter Counties 8. Cross section: E-E' Hemando, Sumter, and Lake Counties 9. Cross section: F-F' Hernando, Pasco, Sumter and Lake Counties 10. Cross section: G-G' Pasco, Sumter, and Polk Counties 11. Cross section: H-H' Pasco and Polk Counties 12. Cross section: I-I' Pinellas and Hillsborough Counties 13. Cross section: J-J' Pinellas and Hillsborough Counties 14. Cross section: K-K' Pinellas and Hillsborough Counties