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<br />. <br /> <br />. <br /> <br />. <br /> <br />to\) <br />1"1) <br />to <br />M:lo <br /> <br />UNITED STATES <br />DEPARTMENT OF THE INTERIOR <br />WATER AND POWER RESOURCES SERVICE <br />UPPER COLORADO REGION <br /> <br />NOTICE OF INITIATION OF INVESTIGATIONS <br /> <br />Name of investigation: Glenwood-Dotsero Springs Unit - Colorado River Water <br />Quality Improvement Pr~gram <br /> <br />Location of investigations: In the Colorado River Basin in Garfield and Eagle <br />Counties of west-central Colorado. <br /> <br />Date investigation initiated: Covered in reconnaissance scope an Appraisal <br />Report dated June 1976. Feasibility investigations started October 1979. <br />Probable date of completion of feasibility report, May 1984. <br /> <br />1. Scope of investi~ations: The study is concerned primarily with identifying <br />possible means of controlling total dissolved solids contributions to the <br />Colorado River along a l6-mile reach between its confluence with the Eagle <br />River and the junction with the Roaring Fork River. The study will be <br />conducted through use of a Professional Services Contract and under the <br />multi-objective planning guidelines set forth in the Principles .and <br />Standards for planning water and land resources. <br /> <br />2. <br /> <br />Problems: The G1enwood-Dotsero Springs constitute the second largest point <br />source of salinity in the Colorado River system. The combined discharges <br />contribute annually approximately 25,000 acre-feet of water containing <br />over 500,000 tons of total dissolved solids. The salinity of the Colorado <br />River has been increasing throughout the basin as a result of man's use <br />and reuse of the river. About 10 million tons of salt are now carried <br />by the river each year causing economic losses to water users in lower <br />crop yields and increased treatment costs. <br /> <br />3. Prospective solutions: Prospective solutions will involve plans for <br />collection and conveyance of saline water, treatment of the saline water, <br />and disposal of brine effluent. <br /> <br />4. Participation by local, State, and Federal a~encies: Interested parties <br />are requested to forward, within 30 days, an expression of interest in <br />participating in the investigations; a summary of pertinent hydrologic, <br />geologic, environmental, or other data that can be made available for <br />planning use; a statement from agencies concerning any jurisdiction they <br />may have over aspects of the project; and a listing of any initial comments, <br />suggestions, or concerns relating to the project. <br /> <br />Prepared: January 1980 <br /> <br />Transmitted: January 21, 1980 <br /> <br />~."_I!- /7/ ./It/te- <br /> <br />Harl M. Noble <br />Regional Planning Officer <br /> <br />~LA~ <br /> <br />Regional Director <br />