Withlacoochee Regional Water Supply Authority Water Supply Plan

Withlacoochee Regional Water Supply Authority Water Supply Plan Update - Progress Report #3 May 15 – June 18

Water Supply Plan Update Progress (May 15 – June 18) 1. 2. 3. 4. 5. 6. 7. Water Demand Estimates Availability of Ground- and Surface Water Conservation and Reclaimed Water Strategies Water Supply Project Options Water Supply Project Configurations Facility Integration Plan Governance

Water Supply Plan Update Progress (May 15 – June 18) § Second Technical Advisory Committee Meeting for oversight of the Water Supply Plan update was held yesterday.

Water Supply Plan Update Progress (May 15 – June 18) 1. 2. 3. 4. 5. 6. 7. Water Demand Estimates Availability of Ground- and Surface Water Conservation and Reclaimed Water Strategies Water Supply Project Options Water Supply Project Configurations Facility Integration Plan Governance

Preliminary Public Supply Demand Projections (2010 -2035) County 2010 Water Use (mgd) Increase in Demand from 2010 -2035 (mgd) Citrus 16. 9 5. 5 32. 7 Hernando 22. 1 6. 0 27. 4 Marion (SWFWMD) 10. 7 10. 9 102. 2 Marion (SJRWMD) 26. 8 5. 8 21. 7 Sumter 22. 9 14. 15 61. 8 TOTALS 99. 4 42. 6 Percent Increase

# 1 2 3 TAC Meeting 1 Status Demand Projections - Action Item Status Investigate population projections from stipulated SWFWMD still awaiting feedback from settlement agreement between Sumter Co. and Wildwood/Sumter County on this. decide how to acknowledge in Water Supply Plan Update Hernando County Utilities wants their permits that are < Completed; also see response to Item 3 below. 100, 000 gpd broken out from the small utilities category SWFWMD completed this and sent data for county and municipal permits. They can also break out projections for small private utilities, Sumter County – separate out small public utilities in the and will proceed with this as time allows. Still utility listings need confirmation from SJRWMD that they are willing / able to provide similar level of detail. 4 Engage private utilities in planning process Open 5 City of Ocala disagreed with per capita use numbers. Awaiting return call from Mr. Muse. 6 The Villages - revise population and water demand projections to reflect no further increases after 2017 Completed and data was sent to commenter for review. 7 Incorrect name provided for private utility. Open Wildwood and Bushnell are projected to have large commercial/industrial growth and are concerned that associated water demand is not included in their public supply projections Comm/Ind demands to be served by public utilities are included in Pub. Supply Projections. The 2023 demands in Wildwood’s 10 -year Water Supply Facilities Plan (3. 62 mgd) are much less than those projected for Wildwood in 2025 by SWFWMD (6. 31 mgd). Also, City's projected 2018 demands (2. 87 mgd) are less than those projected by SWFWMD for 2015 (3. 85 mgd). 8

Water Supply Plan Update Progress (May 15 – June 18) 1. 2. 3. 4. 5. 6. 7. Water Demand Estimates Availability of Ground- and Surface Water Conservation and Reclaimed Water Strategies Water Supply Project Options Water Supply Project Configurations Facility Integration Plan 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 input into the model to determine how water resources such as wetlands, lakes, springs, and rivers in the vicinity of the wellfields will be impacted.

Determining the Availability of Groundwater for Water Supply through 2035 § The model is being updated and expanded into the portion of Marion County in the SJRWMD § This will allow the use of a single model for the entire WRWSA Region. § Benefits of Using the Updated/Expanded Northern District Model – Greater degree of accuracy for evaluating impacts of groundwater withdrawals – Information provided on the effects of groundwater withdrawals in the Lower Floridan Aquifer § Model should be ready for use in July/August

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. – Potential Withdrawal Locations • • Croom Wysong Holder Lake Rousseau

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 (May 15 – June 18) 1. 2. 3. 4. 5. 6. 7. Water Demand Estimates Availability of Ground- and Surface Water Conservation and Reclaimed Water Strategies Water Supply Project Options Water Supply Project Configurations Facility Integration Plan Governance

Conserve Florida Water Conservation Modeling Tool Online EZ Guide - Description – SWFWMD requested that the Authority use the EZ Guide Model for the water supply plan update to assess the public water conservation potential for utilities through 2035. – The model allows for detailed analyses of the water conservation potential for public water supply utilities. – Data such as structure age, lot size, and property type (single family, multi -family, commercial) are input into the model, which calculates water savings based on age of plumbing fixtures, residential irrigation systems, and other factors. – Model provides recommendations for implementing water conservation measures for specific water customer groups and the estimated water savings associated with each conservation measure – Currently working out some problems with the model

Reclaimed Water Availability Assessment through 2035 § Estimated quantity of reclaimed available in 2035 for all waste water treatment plants (flows > 100, 000 gpd) that are not already accounted for by planned projects.

CITRUS COUNTY Utility Name Quantity to Current Projected Total Remaining Utilization Currently be Reused Flow Beneficial Unallocated Beneficially by Planned (percent) (2012) (2035) Reuse 2035 Flow Reused Projects Citrus - Beverly Hills-Rolling Oaks 1 0. 46 0. 49 0. 00 0 0. 49 Citrus - Brentwood 0. 29 0. 83 0. 00 0. 83 100 0. 00 Citrus Springs - to Meadowcrest (to be decommissioned) 0. 09 0. 00 - - - Inverness, City of 0. 48 0. 73 0. 25 0. 48 0. 73 100 0. 00 Crystal River, City of 2 0. 67 0. 84 0. 00 0 0. 84 Citrus - Meadowcrest 0. 60 1. 82 0. 24 1. 58 1. 82 100 0. 00 Point O Woods 3 0. 02 0. 05 0. 01 0. 00 0 0. 05 Citrus - Sugar Mill Woods 0. 48 1. 17 0. 00 0 1. 17 1 Privately-owned Assume Duke Energy plant will not receive 2035 flows 3 Flows projected to be less than 0. 1 mgd in 2035 2

Water Supply Plan Update Progress (May 15 – June 18) 1. 2. 3. 4. 5. 6. 7. Water Demand Estimates Availability of Ground- and Surface Water Conservation and Reclaimed Water Strategies Water Supply Project Options Water Supply Project Configurations Facility Integration Plan Governance

Water Supply Plan Update Progress (May 15 – June 18) § Water Supply Project Options Ø Re-evaluating a seawater desalination water supply option at the Crystal River Power Station Ø Re-evaluating Withlacoochee River water supply options

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