Laserfiche WebLink
<br />';.' <br /> <br />.,'.';',- <br /> <br />~ <br />l-' . <br />0) <br />00 <br /> <br />ABSIRACT <br /> <br />OPTIMIZING SALINITY CONTROL . STRATEGIES <br />FOR THE <br />uPI'.ER COLORADO RIVER BASIN <br /> <br />" <br /> <br />Salinity is the most serious wateT quslitY :problem in the Colorado River <br />Basin. The impact, felt: largely in the LowerBasin,is acute becauss the <br />basin is approaching conditions of full devel~pmentand utilization of aU <br />availabl.s water resourcss. Current' estimates indicate that eaehmg,fl increase <br />in concentration at Impe-rial Dam results in $450,000 annual damages.There- <br />fore, in order to offset salinity caused by the davelopment of the vast energy <br />suppliesand.to allow the seven Colorado River Basinsta.tes tof'ully utilize <br />their allocation of Colorado Riv'er water, it is..'pecessary to. implement cost- <br />effective salinity control prog-rerns in the basin:. <br /> <br />A Simple multi-level nonlinear optimizatiol'l p-rocedu-rs 'was ut;i.,J,iz<>il .to <br />fo-rmulate the most cos.t-effectivearray of salillitycollt-rol strategies for the <br />Upper Colorado River Bas.in. Theincremen.tal cost-effectiveness methodOlogy <br />qualitatively indicates the location and general' type of alternatives to be . <br />implemented in a least cost basin-wide salinity control program. The -results <br />slso qualitatively indicated the anticipated salt load reduction and expected <br />annual costs of each salinity reduction inc-reasefo-r any preselected level of <br />contr,:,!. The analysis waa limited to projects df'signated in PL 93-320. . Costs <br />and salinity contributions associated with va-rioj,ts alte-rnatives we-re generated <br />using January, 1980, estimated conditions. <br /> <br />Cost-effectiveness functions were developed, for each of the majo-r .canals <br />and lilte-rals, the eggregate laterals under each canal, and an arrayofo'n-farm <br />improvements for each ag-ricul1:tt-ral project area. Similar functions were also <br />developed fo-r point sources such asI'aradoxValley, G1enwood-Dotsero Springs <br />and:'.' Crystal Geyser. . Col1ection 'and' d'esalination .of agricultural return.Jlows <br />were"'also considered. . <br /> <br />.... <br />, <br /> <br />,MaTginal cos't analYSis based on current darnllge estimates i#dicate that <br />the optimal cost-effective salinity control prog-ram in the Uppe-r Basin would <br />cost about $30 million annually and remove about'1.2 million megagrams of salt <br />per yea-r. Optimal salinity control prog-rams are presented for the individual <br />alternatives, for individual areas o-r projects, for the states of Colorado and <br />Utah and the Upper Colorado Rive-r Basin. <br /> <br />This.report was submitted in fulfillment of Grant No. R~806148 by <br />Colorado State University under the sponsorship of the U.S. Environmental Pro- <br />tection Agency. This report covers the period of September 18, 1978 to <br />January 17, 1981. <br /> <br />iv <br /> <br />. <br /> <br /> <br />. <br /> <br />o <br /> <br />. . <br />