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WSP11764
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Last modified
1/26/2010 3:18:48 PM
Creation date
10/12/2006 5:09:23 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8273.100
Description
Colorado River Basin Salinity Control - Federal Agencies - Bureau of Reclamation
Basin
Colorado Mainstem
Water Division
5
Date
1/1/1984
Author
BOR
Title
Water Quality of the Colorado River System - Historical Trends in Concentration/ Load/ and Mass Fraction of Inorganic Solutes
Water Supply Pro - Doc Type
Report/Study
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<br />2.5 <br /> <br />.... <br />o <br />o <br />..... <br /> <br />2.0 <br /> <br />z <br />"" <br />w <br />::!i <br />...J <br />"" <br />~ 1.0 <br />z <br />"" <br />~ <br />a: <br />u. <br />~ 0.0 <br />fi <br />:;; <br />~ -0,48 <br /> <br />lil -1.0 <br />N <br />::; <br />"" <br />::!i <br />a: <br />o <br />z -2.0 <br /> <br /> <br />-2.5 <br /> <br />0.8 <br /> <br />~ 0.6 <br />w <br />::!i <br />...J <br />~ 0.4 <br />z <br />z <br />"" <br />::!i 0.2 <br />li1 <br />u. <br />t5 0.0 <br />fi <br />~ -02 <br />o <br />o <br />w <br />!::! -0.4 <br />...J <br />"" <br />::!i <br />is -0.6 <br />z <br /> <br />-0,24 <br /> <br />-0.8 <br /> <br />JAN <br /> <br />FEB <br /> <br />MAR <br /> <br />Figure 3. - Average monthly streamflow variation, Colorado River at Cisco. Utah, 1928-1982. <br /> <br />JUL <br /> <br />-0.22 <br /> <br />JAN <br /> <br />FEB <br /> <br />MAR <br /> <br />1.51 <br /> <br />0.07 <br /> <br />APR <br /> <br />MAY <br /> <br /> <br />0.49 <br /> <br />-0.03 <br /> <br />APR <br /> <br />MAY <br /> <br />1,97 <br /> <br />0.07 <br /> <br /> <br />difference between the August-November and <br />December-March periods. Higher concentrations <br />in the former are mainly caused by calcium and <br />sulfate, which are predominant in irrigation return <br />flow. Other gage sites gave similar results, unless <br /> <br />-0.50 <br /> <br />JUN <br /> <br />AUG <br /> <br />DEC <br /> <br />SEP <br /> <br />OCT <br /> <br />NOV <br /> <br />0,58 <br /> <br />0,03 <br /> <br />-0,08 <br /> <br />-0.07 <br /> <br />0.01 <br /> <br /> <br />-0,05 <br /> <br />-0,18 <br /> <br />JUN <br /> <br />JUL <br /> <br />DEC <br /> <br />AUG <br /> <br />SEP <br /> <br />OCT <br /> <br />NOV <br /> <br />Figure 4. - Average monthly variation in TDS load, Colorado River at Cisco, Utah, 1928-1982. <br /> <br />streamflow was regulated by an upstream reser- <br />voir. Therefore, the annual cycle was divided into <br />three seasons: (1) baseflow, December-March, (2) <br />peak runoff, May-June, and (3) return flow, <br />August-November. <br /> <br />8 <br />
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