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<br />., <br /> <br />Cfn.' .~ <br />. -=:: <br /> <br />~ <br />~ <br />CJ1 <br />~. <br /> <br />Location <br /> <br />Description <br /> <br />Authorization <br /> <br />Land certification <br /> <br />Definite plan report <br /> <br />Benetlt cost ratios <br />as of Ocliober 1, 1993 <br /> <br />Completion data <br /> <br />Colorado RIver Basin Salinity Control Project <br />Lower Gunnison Basin Unit <br /> <br />Colorado <br /> <br />This unit Is located in westcentral Colorado in Delta, Montrose, and Ouray <br />Counties. <br /> <br />The Lower Gunnison Basin Unit winter water flows contribute 74,000 tons!?f salt <br />annually to the river. Water which runs through canals during the non-imQation. <br />season seeps from canals and picks up salt as it Ilttums to the river. Th.plan <br />would put winter livestock water In pipe for distribution. This will helpconttol <br />salinity of the Colorado River at or below 1972 levels as measured at th,..e <br />locations on the river. The project would reduce the salinity Iltsulting In alj annual <br />reduotion in salinity at Imperial Dam of 6.7 mg/L The Colorado River Basin <br />Salinity Control Forum has approved the plan. <br /> <br />Public Law 93-320, June 24, 1974; and Public Law 98-569, October 30. 1984. <br /> <br />None required. <br /> <br />Planning Report approved March 22. 1984. and Final Preconstruotion Report <br />approved August 13, 1987. <br /> <br />Previous agreements with the Mexican Govemment conceming salinity cQntrolln <br />the Colorado Alver and Public Law 93-320 are based upon social and political <br />justifications. The cost elfeotiveness of this unit is measured In tenns of annual <br />cost for each ton of salinity reduotion in the Colorado River at Imperial Oarll. The. <br />annual cost of the unit is $2,727.000 which includes the total Investment annual <br />equivalent cost of $2.292,000 (at 8.875 percent for 50 yeats) plus the annu~ OM&R <br />of $435.000. The Lower Gunnison Unit is estimated to annually remove 74.000 <br />tons of salt from the Colorado Aiver at an annual cost of approximately $3tper ton <br />of salt. <br /> <br /> <br />The winter water portion of the Unit will be completed in FY 1995 with the balance <br />of the Unit deferred until needs develop for elimination of additional salinity. The <br />completion date for the winter water portion changed from FY 1994 to FY 1 ~95 dUe <br />to the work being perfonned by water users rather than contraoting the worlMor the <br />Manoken System Improvements. As of September 30. 1992, the project is 6 <br />percent complete. <br /> <br />-~ <br /> <br />'J <br /> <br />fi <br />~i; <br /> <br />187 <br /> <br />"- ~; <br />l: 1;1 <br />:t:-~-m <br />