2014 Regional Water Supply Plan

Transcription

1 2014 Regional Water Supply Plan SWFWMD Springs Coast Management Committee December 10, 2014 wrwsa.org

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3 Chapter 373, Florida Statutes Water Supply Authority Charge Plan for future water supplies for member governments Locate, develop, deliver wholesale water supply to member governments as needed

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5 Presentation Topics Demand Projections Source Evaluation Water Conservation Reclaimed Water Groundwater Availability Surface Water Availability Seawater Desalination Conclusions

6 Public Supply Demand Projections ( ) (mgd) County 2010 Water Demand 2035 Water Demand Increase in Demand Citrus Hernando Marion Sumter TOTAL

7 Demand Projections for All Use Categories ( ) (mgd) Use Category 2010 Water Demand 2035 Water Demand Increase in Demand Public Supply Domestic Industrial Commercial Recreational Agriculture TOTAL

8 Water Source Evaluation The Availability of Water from all Sources by 2035 was Quantified Public Supply Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination

9 Water Source Evaluation The Availability of Water from all Sources by 2035 was Quantified Public Supply Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination

10 Public Supply Water Conservation Potential University of Florida Conserve Florida Easy Guide Three levels of conservation 5, 10 and 15% reductions Development of Conservation BMPs most applicable to Utility Service Areas 12 utilities representing a majority of the public supply water use Results extrapolated to the remaining public supply population

11 Selected mix of BMPs based on EZ Guide analysis of the twelve benchmark utilities Average (Population weighted) or Total Belleview Brooksville Bushnell Citrus County Utilities Hernando County Utilities Marion County Utilities Ocala Wildwood Crystal The BMP Type River Dunellon Inverness Villages 2010 Gross GPCD Population 447,928 14,513 16,417 3,793 48,432 4,580 6, ,578 24,222 69,155 58,375 11,252 65, Total Water Use (MGD) BMPs Toilet - Residential 2.3% 3.5% 1.7% 5.9% 4.0% 3.7% 2.7% 1.6% 2.1% 1.9% 2.4% 8.7% 1.1% Toilet - Commercial 1.5% 2.0% 3.7% 4.9% 1.3% 10.9% 2.7% 1.0% 1.7% 0.3% 3.3% 2.4% 0.4% Urinal 3.5% 4.7% 8.0% 7.0% 2.3% 16.1% 5.0% 3.7% 3.6% 0.8% 7.7% 1.8% 0.9% Clothes Washer 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Showerhead - Residential 13.9% 31.3% 14.3% 17.0% 17.6% 10.0% 18.6% 12.1% 16.9% 13.1% 13.2% 13.9% 10.5% Showerhead - Commercial 0.7% 0.0% 0.6% 0.9% 0.3% 2.9% 0.2% 0.2% 0.9% 0.2% 3.4% 0.7% 0.1% Faucet - Residential 45.6% 50.8% 59.2% 46.9% 55.1% 36.0% 45.6% 57.9% 54.4% 30.9% 45.1% 33.2% 25.6% Faucet - Commercial 3.9% 6.3% 9.9% 9.3% 2.4% 17.5% 6.0% 3.9% 4.2% 1.0% 7.9% 2.8% 1.1% Pre-rinse Spray Valve 0.1% 0.0% 0.5% 0.5% 0.0% 0.8% 0.3% 0.0% 0.2% 0.0% 0.0% 0.1% 0.0% Water Audit 1.2% 1.3% 1.2% 4.1% 0.7% 0.3% 3.6% 0.3% 0.6% 0.5% 1.8% 18.4% 0.6% Soil Moisture Sensor 16.3% 0.0% 0.8% 2.6% 12.2% 1.3% 6.6% 19.4% 11.5% 19.6% 11.5% 6.4% 27.9% Non Potable Irrigation System (eg. Reuse) 3.6% 0.0% 0.2% 0.8% 4.1% 0.4% 2.2% 0.0% 3.8% 6.5% 3.8% 2.1% 9.3% Irrigation Audit 7.5% 0.0% 0.0% 0.0% 0.0% 0.0% 6.6% 0.0% 0.0% 25.1% 0.0% 9.6% 22.4% Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

12 Public Supply Water Conservation Potential

13 Public Supply Water Conservation Potential County 10 % Water Conservation Potential (mgd) Citrus 2.8 Hernando 4.9 Marion 3.0 Sumter 2.3 Total 13.0

14 Water Source Evaluation The Availability of Water from all Sources by 2035 was Quantified Public Supply Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination

15 Reclaimed Water Availability Assessment Citrus County Example ( ) CITRUS COUNTY Unallocated WWTP Utility Name Flow (2035) Beverly Hills-Rolling Oaks 0.00 Citrus County - Brentwood Regional 1.30 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 0.00 Citrus County - Sugarmill Woods 0.00 Walden Woods MHP 0.03 County Total 1.33

16 Projected Wastewater Quantities not yet Allocated to Reclaimed Water Projects through 2035 County Unallocated WWTP Flow (mgd in 2035) Citrus 1.33 Hernando 1.21 Marion 2.27 Sumter 0.09 Total 4.90

17 Water Source Evaluation The Availability of Water from all Sources by 2035 was Quantified Public Supply Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination

18 Determining the Availability of Groundwater for Water Supply through 2035 SWFWMD s Expanded and Updated Northern District Model. Projected 2035 water demands adjusted to account for the effects of water conservation and use of reclaimed water, then input into the model.

19 Regional Groundwater Modeling Northern District Model

20 Regional Groundwater Modeling Predicted Flow Reduction for Major Springs Spring Name 2035 Percent MFL Allowable Flow Change Reduction (%) SWFWMD Weeki Wachee Springs Chassahowitzka Springs Homosassa Springs Gum Slough Springs Kings Bay Springs 2.2 Under Development Rainbow Springs 2.6 Under Development SJRWMD Silver Springs 7.0 Under Development Silver Glen Springs 0.1 Under Development

21 Regional Groundwater Modeling Conclusions County Groundwater Potential (mgd) SWFWMD SJRWMD Total Citrus Hernando Marion to Sumter Total to

22 Regional Groundwater Modeling Conclusions Modeling Impacts from Four Proposed New Wellfields

23 Projected Surpluses and Deficits for Utilities in Citrus County

24 Citrus County 2035 Water Supply Deficit

25 Proposed Groundwater Project Options 5.1 mgd 2.1 mgd 5.4 mgd 4.1 mgd

26 Water Supply Potential of the Lower Floridan Aquifer Extent of the Freshwater Portion

27 Water Source Evaluation The Availability of Water from all Sources by 2035 was Quantified Public Supply Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination

28 Potential Surface Water Sources (mgd) County Surface Water Total Withlacoochee 1 Ocklawaha 2 Citrus Hernando Marion Sumter Total Based on the median flow at Holder, divided evenly between Citrus and Sumter counties 2. Estimated annual average, SJRWMD DWSP, likely to be modified upon MFL adoption.

29 Water Source Evaluation The Availability of Water from all Sources by 2035 was Quantified Public Supply Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination

30 Proposed Location for a Seawater Desalination Facility

31 15 MGD Seawater Desalination Facility for Planning Purposes

32 Water Source Evaluation Potential Water Supply Availability to Meet Increased Demands (mgd) County Water Conservation Reclaimed Water Groundwater Surface Water Seawater Desalination Total SWFWMD SJRWMD Withlacoochee Ocklawaha Citrus Hernando Marion to to 74.1 Sumter Total to to 195.5

33 Conclusions Public Supply demands in the region will increase by approximately 41 mgd Total demands will increase by approximately 97 mgd Water conservation and use of reclaimed water are essential elements of meeting future demands Upper Floridan groundwater is anticipated to be adequate to meet future demand throughout the SWFWMD portion of the region when conservation and use of reclaimed water is included In the SJRWMD portion of the region, MFLs for Silver Springs / Silver River may limit additional upper Floridan aquifer quantities Alternative supplies include surface water, lower Floridan aquifer and seawater desalination

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35 Questions? wrwsa.org