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<br />
<br />South Platte/Republican River Basin Facts
<br />
<br />Colorado Water Conservation Board
<br />
<br />.
<br />Wald n
<br />
<br />· Sterling
<br />
<br /><!l Greeley
<br />
<br />Meeker
<br /><!l
<br />
<br />Grand
<br />Jl4rction
<br />
<br /><!l Glenwood
<br />Springs
<br />
<br /><!l Denver
<br />
<br />Burlingto~
<br />
<br />Gunnis<!lon
<br />
<br />.Colorado
<br />Springs
<br />
<br />(i) Pueblo
<br /><!l La Junta
<br />
<br />Alamola
<br />lil Durango
<br />
<br />Ove rvi ew
<br />
<br />The South Platte and Republican
<br />Rivers drain 20 percent of the state's
<br />land area. Major tributaries to the
<br />South Platte include Tarryall, Plum,
<br />Bear, Cherry, Clear, Boulder, Big Dry,
<br />and St. Vrain Creeks; and the Big
<br />Thompson and Cache La Poudre
<br />Rivers. The Republican River is a
<br />tributary to the IZansas River.
<br />
<br />March 2002
<br />
<br />
<br />~~~-
<br />
<br />Cherry Creek Reservoir
<br />
<br />iI ....'-"'''-....;;;. ==.;;;;
<br />
<br />Growth
<br />
<br />Water Conservancy
<br />Di stricts
<br />
<br />Bill Owens
<br />Governor
<br />
<br />Greg Walcher
<br />DNR Executive Director
<br />
<br />Rod Kuharich
<br />CWCB Director
<br />
<br />Eric Wilkinson
<br />Carolyn Mcintosh
<br />CWCB Members,
<br />South Platte River Basin
<br />
<br />The basin is comprised of portions of
<br />22 counties in the northeast corner of
<br />the state. Between 1990 and 2000, the
<br />population in this basin increased by
<br />31 percent and now accounts for
<br />68.9 percent of the state's total popula-
<br />tion. The graph below lists populations
<br />for the portions of the counties that are
<br />in this basin.
<br />
<br />Central Colorado
<br />Lower South Platte
<br />Northern Colorado
<br />St. Vrain and Lefthand
<br />Upper South Platte
<br />
<br />Agriculture is the predominant water
<br />use, with approximately 2.0 million
<br />acre-feet per year used for irrigation
<br />of 1.1 million acres. An additional
<br />880,000 acre-feet per year of
<br />groundwater is applied for irrigation;
<br />and 100,000 acre-feet per year of
<br />groundwater is used to meet munici-
<br />pal, domestic, livestock, industrial
<br />and commercial purposes. These
<br />values do not include water in the
<br />High Plains area from Ogallala
<br />Formation wells.
<br />Surface Water Diversions in Acre-feet by Use
<br />
<br /> 1998 (AF) 1994 (AF)
<br />D Irrigation 2,180,148 1,934,387
<br />. Storage 1,082,718 1,223,049
<br />D Municipal 531,886 487,333
<br />D Industrial 70,058 67,397
<br />. Commercial 8,195 12,159
<br />D Domestic 12,286 10,850
<br />iii Stock 740 183
<br />D Recreation 3,681 3,620
<br />.Fish 6,674 7,656
<br />DAugmentation 66,924 95,042
<br />D Recharge 104,656 68,997
<br />
<br />
<br />
<br />Total 4,067,966 3,910,673
<br />
<br />Source: Colorado Division of Water Resources, Division 1 Annual
<br />Reports and Division 7 Annual Reports
<br />
<br />600
<br />
<br />South Platte/Republican River Basin Population by County
<br />
<br />Total Basin Population 01990 .2000
<br />April 1990 2,264,000
<br />April 2000 2,961,000
<br />Percent Growth = 31 %
<br />.........-r-.rI I .-- .-- I ......
<br />
<br />500
<br />
<br />a;-
<br />c..
<br />o
<br />~400
<br />o
<br />o
<br />o
<br />~300
<br />c:
<br />o
<br />:;
<br />:i 200
<br />c.
<br />o
<br />a.
<br />
<br />100
<br />
<br />o
<br />
<br />o t:- ~ ~ ~ s *" ~ 0 0- ~ 0 ~ ~ ~ ~ .~ ~ ~ ~ ~ ~
<br />_\0<::-<::' <<J>0 ~~O o~1j o'~ #~ J',~~~O ~fl} -J..V~ o~~ ii'O ~00(;,00 0~0lJ;f?J 0~~" 0'~O ~~~~vo ~~ -\~0
<br />~0~ .~ (j v ~ ~ r_0~ ~ ~ 5..~~ <QO rS:- Q <::P ,~yf?f Y-
<br />O ~ -..I ~f?J ~ (}0 .J
<br />
<br />Source: Colorado Department of Local Affairs
<br />
<br />Additional information about this river basin is
<br />available at http:j jcwcb.state.co.us
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