|
STATE OF COLORADO
<br />Colorado Water Conservation Board
<br />Department of Natural Resources
<br />1313 Sherman Street, Room 721
<br />Denver, Colorado 80203
<br />Phone: (303) 866-3441
<br />Fax: (303) 866-4474
<br />WWW.CWCb.State.CO.Us
<br />T0: Colorado Water Conservation Board Members
<br />FROM: Eric Hecox and Todd Doherty
<br />Intrastate Water Management and Development Section
<br />DATE: November 7, 2008
<br />SUBJECT: Agenda Item 9, November 18-19 2008 Board Meeting
<br />Water Demands to 2050
<br />Bill Ritter, Jr.
<br />Governor
<br />Harris D. Sherman
<br />DNR Executive Director
<br />Jennifer L. Gimbel
<br />CWCB Director
<br />Dan McAuliffe
<br />CWCB Deputy Director
<br />Staff Recommendation
<br />This is an information item and Board Action is not required.
<br />Background
<br />The Interstate Water Management and Development Section (IWMD) is currently updating the Statewide
<br />Water Supply Initiative (SWSI) Demand Projects from 2030 to 2050. Interim results will be presented to
<br />the Board at the November meeting. The work consists of two parts:
<br />1. Estimating 2050 population
<br />2. Updating the SWSI gallon per capita per day (gpcd) basinwide values across the state
<br />The Colorado State Demographer's Office (SDO) has developed population projections through the year
<br />2035. IWMD's contractor utilized the SDO's and Center for Business and Economic Forecasting model to
<br />estimate population at the county level for the year 2050. These projections were developed on a low,
<br />medium and high basis incorporating varying economic development assumptions. Table 1 shows the
<br />projected increase in population for Colorado's major river basins between 2005 and 2050. These
<br />numbers are subject to revision as the SDO has recently updated its 2035 projections.
<br />Table 1 Population Projections for 2035 and 2050
<br />Basin 2005 2035 2050 Population
<br /> Population Population Low Medium High
<br />Arkansas 903,016 1,477,482 1,662,295 1,787,188 1,967,475
<br />Colorado 283,316 601,076 709,266 802,418 916,671
<br />Gunnison 98,628 191,654 222,692 243,235 267,969
<br />North Platte 1,553 1,947 2,123 2,356 2,774
<br />Rio Grande 49,421 67,495 74,321 80,036 88,502
<br />South Platte 3,299,192 5,293,403 5,978,460 6,474,818 7,137,991
<br />Southwest 99,964 187,877 210,675 240,396 269,569
<br />Yampa/White 42,184 77,972 97,405 115,455 138,529
<br />Statewide
<br />Total 4,777,274 7,898,907 8,957,237 9,745,903 10,789,481
<br />Water Supply Protection • Flood Protection • Stream & Lake Protection • Water Supply Planning & Finance
<br />Water Conservation & Drought Planning • Intrastate Water Management & Development
<br />
|