Basin Roundtable Technical Meeting #4 September 7 2004

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Family of Options for In -Basin Alternatives ' Conserranon Ag Transfers R--irs Non nfin nary Groundwater M &I Reuse Control of Non-Native Discussion of Options Option Benefits Issues Active M &1 • Reasonable cost • May result in demand hardening and Conservation • No permit requirements decrease reliability • Local Control • Customer acceptance • Revenue impacts • Loss of return flow credits Agricultural • Can increase reliability • Loss of return flows may impact efficiency and stretch existing downstream water rights and supplies environment • May reduce non -crop • Ability to pay consumptive use • Cannot sett saved water unless CU is Interruptible • Potential water quality reduced Agricultural Transfer benefits • Potential compact issues and may income to agricultural increase downstream calls and users during droughts impact groundwater tables and wells • Preserve agricultural in the area Discussion of Options Option Benefits Issues Permanent • Permanent right • Local socioeconomic impacts Agricultural Transfer • Senior water rights • Payment in lieu of taxes • Simpler permitting • Water court procedure • Revegetation requirements • Potential loss of open space • Potential loss of wetlands and riparian habitat • Storage is required to firm the yield • May impact groundwater tables and wells in the area Interruptible - Improves M &I reliability • Need guarantee that interruptible Agricultural Transfer • Provides more stable supplies will remain in Irrigation income to agricultural • Ag supplies may not be in needed users during droughts location or of sufficient quantity • Preserve agricultural • Agricultural rights must have dry year use yields • Determination of transferable amount • Soil, weed, labor and equipment management 16