Basin Roundtable Technical Meeting #4 September 7 2004

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Conservation Table Describing Levels of Conserv ation Cumulative Percent Reduction in Future M &1 Demand Level Types of Programs 2000 2010 2020 2030 1 Plumbing codes Na' 2.5% 4.5% 6% • Fixture standards from National Energy Policy Act g Metering Na' 6.5% 8.5% 10% • Leak detection Ol All of the above (Level II) Na' 7.5% 12.5% 16% • Education • Rebates for toilets and washers • Audits: residential and commercial • Landscape audits • Increasing rate structure Na' mez000 M+H or water use imWica inlM1e cuumy gpW vaA>g inclW es'tumrd' conservation savags. Conserv ation Table Describin g Levels Water Needs of Conservation Cumulative Percent Reduction in Future M &I Demand Level Types of Programs 2000 2010 2020 2030 IV All of the above (Level III) Na' 12.5% 19.5% 26% - Steep pricing rate and surcharges • Rebate for landscape changes • Turf replacement 8 restrictions • Rebates for irrigation sensors &controllers - Sub- metering of master -meter properties • Fixture retrofit upon sale of property - Ordinance eliminating single-pass cooling V All of the above (Level IV) Na' 17.5% 29.5% 41% • Replacement of all inefficient water fixtures & appliances • Eliminate leakage by all customers • Eliminate high -water using landscape • I nstall non water -using urinals bynon- residantiat customers 11 i Meeting Future Discussion of Options I Water Needs Option Benefits Issues M81 Reuse for Non •Improves M&I reliability • Can be very expensive Potable Irrigation •Maximizes successive •Must have consumable effluent uses of water • Wastewater treatment plant needs to olling the be near irrigation demands river • River calls may become more senior, • Previously unused reusable effluent historically resulted in reduced or more junior river calls contr Conservation Table Describing Levels of Conserv ation Cumulative Percent Reduction in Future M &1 Demand Level Types of Programs 2000 2010 2020 2030 1 Plumbing codes Na' 2.5% 4.5% 6% • Fixture standards from National Energy Policy Act g Metering Na' 6.5% 8.5% 10% • Leak detection Ol All of the above (Level II) Na' 7.5% 12.5% 16% • Education • Rebates for toilets and washers • Audits: residential and commercial • Landscape audits • Increasing rate structure Na' mez000 M+H or water use imWica inlM1e cuumy gpW vaA>g inclW es'tumrd' conservation savags. Conserv ation Table Describin g Levels Water Needs of Conservation Cumulative Percent Reduction in Future M &I Demand Level Types of Programs 2000 2010 2020 2030 IV All of the above (Level III) Na' 12.5% 19.5% 26% - Steep pricing rate and surcharges • Rebate for landscape changes • Turf replacement 8 restrictions • Rebates for irrigation sensors &controllers - Sub- metering of master -meter properties • Fixture retrofit upon sale of property - Ordinance eliminating single-pass cooling V All of the above (Level IV) Na' 17.5% 29.5% 41% • Replacement of all inefficient water fixtures & appliances • Eliminate leakage by all customers • Eliminate high -water using landscape • I nstall non water -using urinals bynon- residantiat customers 11 i olling the river • River calls may become more senior, impacting all users ation Cumulative Percent Reduction in Future M &1 Demand Level Types of Programs 2000 2010 2020 2030 1 Plumbing codes Na' 2.5% 4.5% 6% • Fixture standards from National Energy Policy Act g Metering Na' 6.5% 8.5% 10% • Leak detection Ol All of the above (Level II) Na' 7.5% 12.5% 16% • Education • Rebates for toilets and washers • Audits: residential and commercial • Landscape audits • Increasing rate structure Na' mez000 M+H or water use imWica inlM1e cuumy gpW vaA>g inclW es'tumrd' conservation savags. Conserv ation Table Describin g Levels Water Needs of Conservation Cumulative Percent Reduction in Future M &I Demand Level Types of Programs 2000 2010 2020 2030 IV All of the above (Level III) Na' 12.5% 19.5% 26% - Steep pricing rate and surcharges • Rebate for landscape changes • Turf replacement 8 restrictions • Rebates for irrigation sensors &controllers - Sub- metering of master -meter properties • Fixture retrofit upon sale of property - Ordinance eliminating single-pass cooling V All of the above (Level IV) Na' 17.5% 29.5% 41% • Replacement of all inefficient water fixtures & appliances • Eliminate leakage by all customers • Eliminate high -water using landscape • I nstall non water -using urinals bynon- residantiat customers 11 i Na' mez000 M+H or water use imWica inlM1e cuumy gpW vaA>g inclW es'tumrd' conservation savags. Conserv ation Table Describin g Levels Water Needs of Conservation Cumulative Percent Reduction in Future M &I Demand Level Types of Programs 2000 2010 2020 2030 IV All of the above (Level III) Na' 12.5% 19.5% 26% - Steep pricing rate and surcharges • Rebate for landscape changes • Turf replacement 8 restrictions • Rebates for irrigation sensors &controllers - Sub- metering of master -meter properties • Fixture retrofit upon sale of property - Ordinance eliminating single-pass cooling V All of the above (Level IV) Na' 17.5% 29.5% 41% • Replacement of all inefficient water fixtures & appliances • Eliminate leakage by all customers • Eliminate high -water using landscape • I nstall non water -using urinals bynon- residantiat customers 11 i i