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Update on Statewide Water Supply Initiative <br />— San Juan /Dolores/San Miguel Basin <br />water use in 2030 (Figure 2). The greatest changes in agricultural water use are <br />expected to occur in the Front Range as M &I growth moves into agricultural lands <br />and /or as water is transferred from agriculture to support growth. Understanding the <br />impact of these changes on rural Colorado economies, and the effect on the open <br />space provided by farms and ranches, is a key challenge for all Coloradans. In other <br />areas of the state, localized decreases and increases in agricultural water use are also <br />expected. A net increase in agricultural water use may occur in the Yampa /White/ <br />Green and the San Juan /Dolores /San Miguel Basins. <br />8% 1% <br />■Agricultural <br />■M &I <br />❑SSI <br />190 2% <br />❑ Agricultural <br />❑ M &I <br />❑SSI <br />91% 86% <br />2000 2030 <br />Figure 2 <br />2000 and 2030 Statewide Agricultural, M &l, and SSI Demands <br />San Juan/Dolores /San Miguel Background <br />The San Juan /Dolores /San Miguel Basin is projected to experience an increase in <br />M &I and SSI water demand by 2030 of 18,800 AF. In SWSI, M &I is defined as all of the <br />water use of a typical municipal system, including residential, commercial, industrial, <br />irrigation, and firefighting. Large industrial water uses that have their own water <br />supplies or lease raw water from others are described as SSI water users. For the <br />purposes of SWSI, these regional water needs in the San Juan /Dolores /San Miguel <br />Basin were evaluated on a county level. These counties are shown in Figure 3 with the <br />population increases from 2000 to 2030. Table 4 shows the total population and <br />percent increases for the counties of the San Juan/Dolores /San Miguel Basin. <br />4 <br />SWSI Update - SJDSM Basin <br />