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Last modified
8/11/2009 11:47:17 AM
Creation date
1/30/2008 2:12:24 PM
Metadata
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Template:
Publications
Year
2002
Title
Dolores & San Juan River Basin Facts
Author
CWCB
Description
Dolores & San Juan River Basin Facts Sheet
Publications - Doc Type
Basin Fact Sheets
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<br />Major Storage Projects <br /> <br />Reservoir <br /> <br />Normal Storage <br />(acre-feet) <br />381 , 1 00 <br />129,700 <br />40,100 <br />23,254 <br />21 ,000 <br />18,960 <br />10,084 <br />9,980 <br />5,954 <br />1,100 <br /> <br />McPhee Reservoir <br />Vallecito Reservoir <br />Lemon Reservoir <br />Cascade Reservoir <br />Groundhog Reservoir <br />Narraguinnep Reservoir <br />Williams Creek Reservoir <br />Jackson Gulch Reservoir <br />Summit Reservoir <br />Red Mesa Ward Reservoir <br /> <br />Source: Colorado Division of Water Resources Office of Dam <br />Safety Database <br /> <br />Annual Discharges <br /> <br />~ <br />~ 5,000 <br /> <br />l'CI <br />"fi <br />.~ 4,000 <br />c <br />>- <br />::c <br />g 3,000 <br />2: <br />IV <br />E 2,000 <br />IV <br />> <br /><( <br /> <br />~ <br />.e <br />~ 2,500 <br />C'l:I <br />J: <br />.~ 2,000 <br />c <br />>- <br />:i: <br />1: 1,500 <br />o <br />2: <br />GJ <br />E 1,000 <br />GJ <br />> <br /><( <br /> <br />Animas River at Durango, Colorado <br /> <br />7,000 <br /> <br />6,000 <br /> <br />Average Annual Discharge: <br />Minimum Annual Discharge: <br />Maximum Annual Discharge: <br /> <br />o Avg. Year <br /> <br />597,073 AF <br />218,321 AF (1977) <br />990,228 AF (1920) <br /> <br />. Max. Year <br /> <br />o Min. Year <br /> <br />1,000 <br /> <br /> <br />Oet Nov Dee Jan Feb Mar Apr May Jun Jul Aug Sep <br /> <br />Dolores River Near Bedrock, Colorado <br /> <br />3,500 <br /> <br />3,000 <br /> <br />Average Annual Discharge: 268,032 AF <br />Minimum Annual Discharge: 40,061 AF (1990) <br />Maximum Annual Discharge: 514,869 AF (1993) <br />Data is for years 1985 - 1997 and reflects <br />regulation by 381,000 AF McPhee Reservoir <br /> <br />D Min. Year <br /> <br />o Avg. Year <br /> <br />. Max. Year <br /> <br />500 <br /> <br /> <br /> <br />Source: U. S. Geological Survey Water Supply Reports <br /> <br />Major Water Rights Calls <br /> <br />Some stream systems do not have water rights calls, while <br />in other stream systems senior irrigation water rights place <br />calls every year. Internally controlled streams include <br />Coal Creek La Plata River <br />Elbert Creek Little Cascade Creek <br />Florida River Mancos River <br />Four Mile Creek Los Pinos River <br />Junction Creek Rito Blanco <br />McElmo Creek <br />Calls typically occur after spring runoff and extend <br />through the end of the irrigation season. On the La Plata <br />River, calls generally occur earlier in the spring. Except <br />for the La Plata, water is available in the stream system for <br />appropriation near the state line and no call for water <br />priorities is necessary. Reservoir storage in many basins <br />serves to reduce the impact of calls. Water rights on the La <br />Plata River are curtailed to meet La Plata River Compact <br />delivery requirements to New Mexico, as well as intrastate <br />adminis tra tion. <br />Source: Division 7 Staff and Colorado Water Conservation Board <br /> <br />Stream and Lake Protection <br /> <br />There are 113 instream flow segments totaling 867 stream <br />miles in this basin. There are also 50 lakes with decreed <br />natural lake levels. These decreed water rights are held by <br />the CWCB to "protect the natural environment to a <br />reasonable degree." The decreed flow or lake level for <br />each of these instream flow segments and natural lakes is <br />based on the flow or lake level required to maintain the <br />water-dependent natural environment. <br /> <br />Source: Colorado Water Conservation Board <br /> <br />Hydrological Variations <br /> <br />Examples of annual and seasonal flow variation are shown <br /> <br />below: <br /> <br />Gage <br /> <br />Maximum <br />Recorded <br />Flow (cfs) <br />10,700 (1949) <br />8,300 (1973) <br /> <br />Minimum <br />Recorded <br />Flow (cfs) <br />94.00 (1913) <br />O. 12 (1977) <br /> <br />Animas R. at Durango <br />Dolores R. near Bedrock <br /> <br />Source: U. S. Geological Survey Water Data Reports <br /> <br />(Dolores & San Juan River Basin Facts - 2) <br />
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