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Presentation Agenda

Water Supply Assessment 2008 (Draft) and 2010 Water Supply Planning Process for the Northern Water Supply Planning Area St. Johns River Water Management District. Presentation Agenda. Statutory requirements History Tools, methods, and results Priority water resource caution areas

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Presentation Agenda

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  1. Water Supply Assessment 2008 (Draft)and 2010 Water Supply Planning Processfor the Northern Water Supply Planning Area St. Johns River Water Management District

  2. Presentation Agenda • Statutory requirements • History • Tools, methods, and results • Priority water resource caution areas • Schedule • Water supply planning process

  3. Statutory RequirementsSubparagraph 373.036(2) (b) 4, Florida Statutes • Districtwide assessment which determines • Existing and projected water use (through 2030) • Existing and proposed sources of water and conservation efforts • Areas where projected uses cannot be sustained with proposed sources without unacceptable impacts to water resources and related natural systems – priority water resource caution areas (PWRCAs)

  4. Regional Water SupplyPlanningRequirements Chapter 373, Florida Statutes • 20-year planning horizon (2030) • Public process • Coordination with water supply entities, local governments, and other affected parties • Identifies: • Water supply development projects adequate to meet projected water supply needs • Water resource development projects • Sources of project funding

  5. Water Supply Planning History • 1997 legislation requiring water supply planning • 1998 Water Supply Assessment • 2000 District Water Supply Plan • 2003 Water Supply Assessment • 2005 District Water Supply Plan • 2008 Water Supply Assessment • 2010 District Water Supply Plan

  6. Priority Water Resource Caution Areas1998 and 2003

  7. WSA 2008 Tools • Water use data (1995-2030) • Groundwater flow models • Water resource constraints

  8. District Population and Water Use 1995 to 2030

  9. Northern Planning Area Population in SJRWMD

  10. Northern Planning Area Total Water Use in SJRWMD

  11. Northern Planning Area Public Supply Population in SJRWMD

  12. Northern Planning Area Public Supply Water Use in SJRWMD

  13. Northeast Florida Regional Groundwater Flow Model – Version 3

  14. Extent of the Floridan Aquifer system

  15. Projected changes in the elevation of the potentiometric surface of the Floridan aquifer system

  16. Projected changes in surficial aquifer system water levels

  17. Water Resource ConstraintsIdentify limits of water level change at which unacceptable impacts are likely to occur • Natural systems constraints • Native vegetation (wetlands) • Lakes • Springs • Minimum flows and levels (MFLs) • Groundwater quality constraint • Salt water intrusion

  18. Northern Planning Area Water Resource Constraints1995-2030

  19. Priority Water Resource Caution Areas and Potential Caution Areas

  20. Potential Caution Areas • Areas that may not be able to meet future water demands without unacceptable impacts to water resources and related natural systems • May be identified as PWRCAs following further evaluation • Will be further evaluated during 2010 water supply planning process

  21. Planning Areas in SJRWMD

  22. Northern Planning Area Water Supply Planning Process • Sponsors • St. Johns River Water Management District • Suwannee River Water Management District

  23. Northeast Florida • Planning Area • Counties • Alachua • Baker • Bradford • Clay • Columbia • Duval • Flagler • Nassau • Putnam • St. Johns • Union

  24. Planning Process Objectives • Review projected water resource impacts • Finalize priority water resource caution areas in SJRWMD • Complete 2008 water supply assessment (WSA) • Identify strategies to prevent projected unacceptable impacts • Incorporate strategies and 2008 WSA in 2010 District Water Supply Plan

  25. Planning Process Participants • Local governments • Public supply utilities • Multijurisdictional entities • Self-suppliers • Other affected/interested parties

  26. Planning Process Schedule • June 2009 – December 2010 • First meeting – June 18th in Gainesville

  27. Questions?

  28. Projected Unacceptable Impacts to Native Vegetation

  29. Projected Unacceptable Impacts to Lakes

  30. Lakes with Levels Projected to Fall Below Established MFLs

  31. Projected Unacceptable Impacts to Groundwater Quality

  32. Impacts to Springs (15% Reduction in Flow)

  33. Impacts to Springs with Established MFLs

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