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<br />. <br /> <br />. <br /> <br />'. <br /> <br /> g~rT <br /> TABLE H <br /> Estimated Values for Salt toad Contributed by Natural and Irrigation Returnflow Ground Water <br /> Less Amount <br /> Measured Estimated Total Natural <br /> Total Base Flow for Irrigation Base Flow <br /> Subbasin Salt Loadl Salt Load2 Returnflow Salt Load <br /> ---- tons/year tonnes/year tons/year tonnes/year tons/year tonnes/year tons/year tonnes/year <br /> Upper Co lor ado River <br /> Headwaters 1,117,300 1 013 600 974,200 883 800 0 0 974,200 883 800 <br /> Gunnison River Basin 1.364,600 1 238 000 726,200 658 800 344,400 312 400 381,800 346 400 <br /> Lower Colorado River <br /> Headwaters 1,113,100 1 009 800 1,040,000 943 500 690,000 630 000 349,200 316 800 <br /> Dolores River Basin 489,800 443 500 282,500 256 300 0 0 282.500 256 300 <br />>- <br />>- <br />'" <br /> Middle Upper Colorado <br /> River -268,800 -243 900 -384,700 -349 000 0 0 -384,700 -349 000 <br /> Upper Green River Basin 1,135,000 1 029 700 335,400 304 300 36,000 33 000 299,400 271 600 <br /> Yampa River Basin 411,700 373 500 161,100 146 100 0 0 161,100 146 100 <br /> White River Basin 275,100 249 600 195,700 177 500 8,000 7000 187,700 170 300 <br /> Lower Green River Basin 1,213,300 1 100 700 466,100 422 800 129,700 117 700 336,400 305 200 <br /> Totals 6,851,100 6 214 500 3,796,500 3 444 100 1,208,900 1 100 100 2,587,600 2 347 500 <br /> <br />1 Taken from BLM 1977 Salinity Status Report, 1978.(25) <br />2 Taken from Warner and Heims, 1979.(25) <br />