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<br />per ton of salt kept out of the river.
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<br />Three projects would control mineral springs~ one at GlenwQod
<br />fipdllgll, colorudo; one ot ta Verkin Spr.irtgs, Utllh; and the t:hi.t"d at:
<br />Blue Springs, Arizona. About 70 percent of the flow of Glenwood and
<br />Dotsero Springs, near the town of Glenwood Springs, could be cont~ol-
<br />led and 370,000 tons of salt annually removed by means of a desalting
<br />plant with a capacity of 16 milHotJ gallons \>('r day. tJrlnes could
<br />be disposed of by subsurface injection lnto dOl~fI wdlB. This project
<br />would hav(~ nl1 IlvcruBe annual cost of $S,OOO,OOO, aud a Unit coat of
<br />$14 per ton of salt removed.
<br />About 70 percent of the flow of La Verkin Springs, on the Virgin
<br />River, could be captured. This quantity, about 7,000 acre~feet an-
<br />nually containing about 80,000 tons of salts, would be conveyed to an
<br />cvnporot iOIl [l(l\1d and thus eli.minatcd from the river. This project is
<br />dBtimated to have Un average annunl cost of $600,000, nnd a udit cost
<br />of about $8 per ton of salt removed.
<br />The largeBt natural point source in the Colorado River Basin is
<br />Blue Springs on the Little Colorado River. The project to eliminate
<br />its 500,OOO~tort annual salt contribution consists of a low dam down
<br />stream of BlUt' Springl1 to intercept the spri.ngs' flow, pumping plants
<br />t~ansport the water to Flagstaff, and a
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<br />and conveyanc~ facilities to
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<br />desalting plant at Flagstaff Where the. d~salted water would be sold.
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<br />This project would have an average annual cost of $16 million, or
<br />$32 per year per ton of salt removed. The project also has possibil-
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<br />I ti 1'1"1 ,1.0" itK""pot"(ltl.oll or pump Ht(lt.i1g.~ and powl:r rtlcovery fenCures.
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