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Section 5 Addressing the Water Supply Gap Technical Roundtable The M~eI gap for each basin is summarized in Table 5-3. 5.3 Options for Water Supply Alternatives After considering all water supply options it is apparent that in general terms water supply options will be a mixture of conservation, reuse, agricultural transfers, and new water supply projects involving storage. 5.3.1 Conservation Water conservation will be relied on as a major tool in meeting future M~eI demands, but conservation alone cannot meet all of Colorado's future water needs. Section 2 of this report provides a detailed examination of the role that water conservation can play in meeting future water demands and meeting the gap. Various conservation measures were reviewed and ranges of potential statewide water conservation savings estimated. Projected Long-Term Savings from Conservation and Efficiency Measures As part of the Conservation TRT effort, a matrix of potential conservation water savings from the implementation of the various measures was developed. The TRT conservation savings matrix (Table 2-1) reveals there is significant potential for .. - .. .. Increased Demand Estimate for M&I and Self- Gap, AFl Basin Sup lied Industrial 2030 .• ~~~ ~~ Colorado 61,900 3,000 Dolores/San Juan/ 18,800 4,900 San Miguel Gunnison 14,900 2,400 North Platte ~_ 100 100 Rio Grande 4,300 100 South Platte 409,700 90,600 Yampa/Vllhite/ Green 22,300 0 Total water use reductions by Colorado M~eI water providers through the implementation of many measures. Some of these measures are programs, while others represent policies that would be implemented by the water provider or land use governing authority. These measures, if successfully implemented, represent a range of demand reduction from 287,000 to 459,000 AFY by 2030. The level of penetration, which can be defined as the extent to which the conservation measure is implemented or adopted by consumers, is the most sensitive variable that affects the amount of reduction in water demand (conservation) that may be achieved. Upper and Southwestern regions (augmentation credits) and Lower region and unincorporated EI Paso Couniy (firm water supply) Smaller providers in Garfield County, Grand and Summit Counties San Miguel (water supply) and San Juan (infrastructure to deliver existing and future water supplies) Upper Gunnison and Ouray Couniy (need for augmentation credits) No gap anticipated due to low increase in demand No gap anticipated due to low increase in demand All areas Concerns over drought reliability due to transit losses. Oil shale development in White River basin could significantly increase demands. 5-14 FINAL DRAFT