1 Engineering Analysis of Properties Designated within the City of Bonita Springs as “Density Reduction/Groundwater Resource” (DR/GR) Land Use Category CN Greg F. Rawl, P.G. CITY OF BONITA SPRINGS CITY OF BONITA SPRINGS

2 Regional Geologic Cross Sections

3 Regional Geologic Cross Section A – A’

4 Regional Geologic Cross Section B – B’

5 Local Geologic Cross Sections E

6 Local Geologic Cross Section E – E’

7 Local Geologic Cross Sections F

8 Local Geologic Cross Section F – F’

9 Local Geologic Cross Sections H

10 Local Geologic Cross Section H – H’

11 Local Geologic Cross Sections K

12 Local Geologic Cross Section K – K’

13 Surficial Aquifer Water Level Contour Plot for May of 2003 End of Dry Season

14 Surficial Aquifer Water Levels Difference Plot Between May 2003 & May 1992 End of Dry Season

15 Surficial Aquifer Water Level Contour Plot for October of 2002 End of Wet Season

16 Surficial Aquifer Water Levels Difference Plot Between October 2002 & October 1991 End of Wet Season

17 Saline Water Intrusion Monitoring South Of Imperial R. & East of Old 41

18 Lower Tamiami Aquifer Chloride Concentration Plot for April 1989

19 Lower Tamiami Aquifer Chloride Concentration Plot for April 2001

20 Lower Tamiami Aquifer Chloride Concentration Plot for October 1989

21 Lower Tamiami Aquifer Chloride Concentration Plot for October 2001

22 Summary of Literature Net Recharge Rates Krulikas and Giese (USGS 1995) estimated 0.6 to 9.02 inches/year, with induced recharge rates greater than 9.02 inches/year possible. Shoemaker et al (USGS 2003) estimated net recharge rates from to inches/year. DHI Big Cypress Basin Integrated Hydrologic-Hydraulic Model, 2002 calculated 17.1 inches/year average for 1990 to 1995.

23 SFWMD – Lower Tamiami Aquifer Average Recharge

24 Shoemaker Simulated Net Recharge to Water Table Aquifer During March 1996 Source: Potential for Saltwater Intrusion into the Lower Tamiami Aquifer Near Bonita Springs, Southwestern Florida USGS Water Resource Investigations Report

25 Simulated Net Recharge to Water Table Aquifer During March 1996

26 Net Recharge to Water Table – Steady State Dry Season

27 Shoemaker Simulated Net Recharge to Water Table Aquifer During September 1996 Source: Potential for Saltwater Intrusion into the Lower Tamiami Aquifer Near Bonita Springs, Southwestern Florida USGS Water Resource Investigations Report

28 Simulated Net Recharge to Water Table Aquifer During September 1996

29 Net Recharge to Water Table – Steady State Wet Season

30 Average Net Recharge for the Bonita Springs Model Region is 2.27 Inches per Year

31 Shoemaker Simulated Net Recharge to Water Table Aquifer During March 1996 Average Net Recharge for the Bonita Springs Model Region is 7.87 Inches per Year

32 Shoemaker Simulated Net Recharge to Water Table Aquifer During September 1996 Average Net Recharge for the Bonita Springs Model Region is 5.31 Inches per Year

33 Simulated Net Recharge to Water Table – Average Annual Steady State for 2000 to 2003

34 Bonita DR/GR Aerials Many existing land uses 95+% of land altered

35

36

37

38

39

40

41 Regional Geologic Cross Section C – C’

42 Regional Geologic Cross Section D – D’

43 Saline Water Intrusion Monitoring

44

45

46 Soils Map

47 Current Lee Co FLUM DR/GR General Interchange Resource Protection Wetlands

48

49 Surface Water Sites Lee County sampling sites ECT (Study) sampling sites

50