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Water Use Demands

Water Use Demands

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Water Use Demands

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Presentation Transcript

  1. Water Use Demands • Different approaches taken by Districts in determining reasonable-beneficial demands when assigning permit allocations. • Two primary stakeholder groups: • Agriculture • Public Water Supply

  2. Workgroup Concepts • Level of Certainty • Rainfall condition under which allocations are determined • 1-in-10 year drought is less rain than a 2-in-10 year drought Existing level of certainty across Districts: 1-in-10 2-in-10 2-in-10 2-in-10 1-in-10

  3. Workgroup Concepts • Recommended Level of Certainty: 1-in-10 • Make permitting level of certainty consistent with planning level of certainty (373.709, F.S.) • Different level of certainty may apply in areas with specific resource concerns.

  4. Workgroup Concepts • Public Water Supply Demands • Build on guidance from 2008 DEP/WMD per capita memo. • Historic use • Use five years of historic per capita data. • Future demands • Population methodology • Per capita • Methods under investigation / feedback requested: • Parcel Based with annual updates to coincide with annual per capita and land use designation changes • Traffic Analysis Zones / Census Blocks

  5. Workgroup Concepts • Irrigation Demands • Use the same equation statewide with variables accounting for regional differences. • Investigating AFSIRS method with GWRAPPS GIS-based platform. • Subgroup formed of technical staff from the Districts, FDEP, FDACS. Crop Irrigation Soil Type Rainfall Supplemental System Demand - + + =

  6. Workgroup Concepts • All Other Use Classes • Define use classes • Planning • Permitting • Develop allocation recommendations. 0.1 gpd 0.1 gpd 0.06 gpd 0.06 gpd 0.1 gpd

  7. Next Steps • Receive feedback from Workshops • Irrigation allocation methodology • Public water supply population and per capita • All other use categories • Continue work group meetings • Update recommendations per comments

  8. Providing Comments We appreciate your written comments. Please submit by September 14 to cupcon@dep.state.fl.us. Comments sent to this address are delivered to all 5 Water Management Districts and DEP • All presentations will be posted at: http://www.dep.state.fl.us/water/waterpolicy/cupcon.htm