Withlacoochee Regional Water Supply Authority Water Supply Plan Update - Progress Report #5 July 15 – September 15

Water Supply Plan Update Progress (July 15 – September 15) 1.Water Demand Estimates 2.Availability of Ground- and Surface Water 3.Conservation and Reclaimed Water Strategies 4.Water Supply Project Options 5.Water Supply Project Configurations 6.Facility Integration Plan 7.Governance

Water Supply Plan Update Progress (July 15 – September 15) 1.Water Demand Estimates 2.Availability of Ground- and Surface Water 3.Conservation and Reclaimed Water Strategies 4.Water Supply Project Options 5.Water Supply Project Configurations 6.Facility Integration Plan 7.Governance

Public Supply Demand Projections ( ) County 2010 Water Use (mgd) Increase in Demand from (mgd) Percent Increase Citrus Hernando Marion Sumter TOTALS

Water Supply Plan Update Progress (July 15 – September 15) 1.Water Demand Estimates 2.Availability of Ground- and Surface Water 3.Conservation and Reclaimed Water Strategies 4.Water Supply Project Options 5.Water Supply Project Configurations 6.Facility Integration Plan 7.Governance

Determining the Availability of Groundwater for Water Supply through 2035  Groundwater Availability will be Determined through the Use of the SWFWMD’s Northern District Model –A number of wellfields will be proposed in the vicinity of major population centers with capacities large enough to meet projected demands. –The production of the wellfields will be modeled to determine the quantity that can be produced that will not violate the MFLs of wetlands, lakes, springs, and rivers in the vicinity of the wellfields.

Determining the Availability of Groundwater for Water Supply through 2035  The SWFWMD’s has provided us with the expanded and updated Northern District Groundwater model.  SWFWMD will supply us with data on how much water is projected to be pumped for the wells in the model in  We are re-evaluating the locations and production quantities for the wellfields that were proposed in the 2010 Water Supply Plan.  Once this is completed, we will use the model to determine how the wellfields will impact established and proposed MFLs for springs, lakes, and wetlands.

Determining the Availability of Surface Water for Water Supply through 2035  Withlacoochee River (SWFWMD)  Ocklawaha River (SJRWMD)

Determining the Availability of Surface Water for Water Supply through 2035  Withlacoochee River (SWFWMD) –The Upper and Middle Withlacoochee River minimum flows are currently in draft form and scheduled for finalization in 2014 –The Lower Withlacoochee River minimum flow is scheduled for 2014.

Determining the Availability of Surface Water for Water Supply through 2035 Withlacoochee River Withdrawal Location Potential Median Annual Withdrawal (mgd) Croom19.85 Wysong33.6 Holder35.6  These quantities were obtained from an analysis of the SWFWMD’s preliminary MFL work on the Withlacoochee River  The quantities are not cumulative  The quantities are highly seasonal - during the wet season, at least this much would be available while during the dry season, it is likely that none would be available.

Determining the Availability of Surface Water for Water Supply through 2035  Ocklawaha River (SJRWMD) –A minimum flow has been proposed for Ocklawaha River at SR- 40. –Water could be available at confluence of Ocklawaha and Silver River and at Rodman Reservoir. –The SJRWMD has no formal recommendation for a water supply project for the Ocklawaha River at this time. –Potential annual average yield is being re-evaluated.

Water Supply Plan Update Progress (July 15 – September 15) 1.Water Demand Estimates 2.Availability of Ground- and Surface Water 3.Conservation and Reclaimed Water Strategies 4.Water Supply Project Options 5.Water Supply Project Configurations 6.Facility Integration Plan 7.Governance

Conserve Florida Water Conservation Modeling Tool Online EZ Guide  SWFWMD requested the Authority use the University of Florida EZ Guide Model for the water supply plan to assess public supply water conservation potential for utilities through  Cardno, the Authority, and SWFWMD has asked the University of Florida staff that developed the modeling tool, to take the lead to continue the assessment of the public supply water conservation potential for utilities through  We provided the University of Florida EZ Guide staff with input on the conservation information we require for the water supply plan and how we would like it formatted.  The EZ Guide Staff has agreed to develop the conservation information according to our specifications and we are working closely with them to provide supporting information.

Reclaimed Water Availability Assessment through 2035  We have completed our estimate of the quantity of reclaimed water that will be available in 2035, that is not yet allocated to reuse projects in the Authority’s four- county region.  We are revising our estimates based on feedback from the utilities.

Reclaimed Water Availability Assessment Citrus County Example ( ) CITRUS COUNTY Unallocated WWTP Flow (2035) Utility Name Beverly Hills-Rolling Oaks 0.49 Citrus County - Brentwood Regional 0.81 Cirtus County - Citrus Springs (to be decommissioned, to Meadowcrest) - Inverness, City of 0.00 Crystal River, City of 0.00 Citrus County - Meadowcrest 0.00 Citrus County - Point O Woods 0.49 Citrus County - Sugarmill Woods 0.94 Walden Woods MHP 0.03 County Total 2.76

County Name Unallocated WWTP Flow (mgd in 2035) Citrus 2.76 Sumter 0.09 Marion 2.94 Hernando 0.96 Total 6.75 Projected Treated Wastewater Quantities not yet Allocated to Reclaimed Water Projects (2035) through 2035

Water Supply Plan Update Progress (July 15 – September 15) 1.Water Demand Estimates 2.Availability of Ground- and Surface Water 3.Conservation and Reclaimed Water Strategies 4.Water Supply Project Options 5.Water Supply Project Configurations 6.Facility Integration Plan 7.Governance

Water Supply Plan Update Water Supply Project Options and Configurations  The re-evaluation of a seawater desalination water supply option at the Crystal River Power Station has just been completed.  Continuing the re-evaluation of water supply facilities that could use the Withlacoochee River as a source.

Water Supply Plan Update Progress to Date (July 15 – September 15) 1.Water Demand Estimates 2.Availability of Ground- and Surface Water 3.Conservation and Reclaimed Water Strategies 4.Water Supply Project Options 5.Water Supply Project Configurations 6.Facility Integration Plan 7.Governance