|
Section 5
<br />Addressing the Water Supply Gap Technical Roundtable
<br />Table 5-1 Population Projections by Basin
<br />Colorado 248,000 492,600 244,600 99
<br />Dolores/San 90,900 171,600 80,700 89
<br />Juan/San
<br />Miguel
<br />Gunnison 88,600 161,500 72,900 82
<br />North Platte 1,600 2,000 400 25
<br />Rio Grande 46,400 62,700 16,300 35
<br />South Platte 2,985,600 4,911,600 1,926,000 65
<br />Green
<br />TOTAL 4,335,500 7,156,400 2,820,900 65
<br />Source: Colorado Department of Local Affairs Demography Section
<br />Figure 5-2
<br />Under Optimistic Assumptions Local MEtI Providers
<br />Have the Ability to Meet 80 Percent of Colorado's
<br />MEtI Water Needs through 2030
<br />Approximately 80 percent (512,000 AFY) of this
<br />projected future demand will be met if all providers'
<br />IPPs are successful in delivering the planned amount
<br />of water and planned water conservation savings are
<br />realized. The 20 percent (118,000 AFY) of projected
<br />future demands not met by IPPs is the "gap"
<br />between current supplies and future needs.
<br />The distribution of the additional needed supplies
<br />and gap among the eight major water basins are
<br />presented in Figures 5-3 and 5-4. Figure 5-4
<br />illustrates how the 20 Percent M~eI gap
<br />(118,000 AFY) is distributed among basins. It should
<br />be noted, however, that while the east slope (South
<br />Platte, Arkansas, Rio Grande, and North Platte
<br />Basins) is responsible for the majority of the gap
<br />(91 percent), west slope gaps are still critical,
<br />especially in headwaters and rural areas.
<br />In addition to the M~eI gap, agricultural shortages
<br />were identified in the SWSI report and must be
<br />considered. Agricultural shortages are shown in
<br />Table 5-2 (difference between Irrigation Water
<br />Requirement and Water Supply Limited).
<br />Table 5-2 Statewide Agricultural Demands
<br />Arkansas * 405,000 748,000 619,000
<br />Colorado 238,000 366,000 319,000
<br />Dolores/San Juan/ 255,000 370,000 294,000
<br />San Miguel
<br />Gunnison 264,000 473,000 396,000
<br />North Platte 116,000 96,000 96,000
<br />Rio Grande 633,000 1,108,000 776,000
<br />South Platte 910,000 1,593,000 1,365,000
<br />Yampa/Vllhite/Green 118,000 138,000 123,000
<br />TOTAL 2,939,000 4,892,000 3,988,000
<br />South Platte irrigated acreage in this table is based on 2001 aerials
<br />and represents a more refined analysis from the preliminary irrigated
<br />acres reported in the SWSI Report.
<br />South Platte
<br />76.7
<br />Rio Grande
<br />0.1
<br />Arkansas Dolores/San Juan/San
<br />14.6% ~ Miguel
<br />4.1
<br />z.s%
<br />Gunnison
<br />2.0
<br />North Platte
<br />o.o%
<br />Yam pa/G reen/W hite
<br />0.0
<br />- Figure 5-4
<br />Gap Percentage by Basin
<br />5-4 FINAL DRAFT
<br />
|