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<br />Table 2. Estimated Values for Salt Load Contributed by Natural and Irrigation Returnflow Groundwater.*
<br />
<br />Subbasin
<br />
<br />Upper Colorado River
<br />Headwaters
<br />
<br />Gunnison River Basin
<br />
<br />Lower Colorado River
<br />Headwaters
<br />
<br />Dolores River Basin
<br />
<br />Middle Upper Colorado River
<br />Upper Green River Basin
<br />
<br />Yampa River Basin
<br />White River Basin
<br />
<br />Lower Green River Basin
<br />
<br />Tota 1
<br />Salt Loadl
<br />
<br />Measured
<br />Base Flow
<br />Salt Load2
<br />
<br />Less AlTKlunt
<br />Estimated
<br />for Irrigation
<br />Returnflow
<br />
<br />Total Natural
<br />Base Flow
<br />Sa lt Load
<br />
<br />1 ,11 7, 300 ~
<br />1,364,600
<br />
<br />'0,9 h?;~ : ::1
<br />~ - -; ~'" ' - " ,~
<br />'1i~ I t...cL
<br />!) ",,>1 hO~:Y
<br />~O f, 1..' '-"-
<br />
<br />974,200
<br />726,200
<br />
<br />. Bl Ii. ,
<br />~ V\I1"'"I.,(/'-'f
<br />/ . gjJ ,I,I!
<br />g / 974,200102{
<br />
<br />344,40~i~ 381,800
<br />. "' ,~, ,,'
<br />
<br />1,113,100
<br />489,800
<br />-268,800
<br />1,135,000
<br />411 ,700
<br />275,100
<br />1,213,300
<br />
<br />1 ,040,000
<br />282,500
<br />-384,700
<br />335,400
<br />161,100
<br />195,700
<br />466,100
<br />
<br />690,800 349,200
<br />g 282,500
<br />g -384,700
<br />36,000 299,400
<br />g 161,100
<br />8,000 187,700
<br />129,700 336,400
<br />1,208,900 2,587,6Ofk
<br />/7 OJ/) 3~ 70
<br />.
<br />
<br />Totals
<br />
<br />3,796,500
<br />
<br />6,851,100
<br />
<br />* In tons per year.
<br />1 Taken from BLM 1977 Salinity Status Report (3).
<br />2 Taken from Warner and Heimes (41).
<br />
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