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<br />SUMMARY OF AGENCY AND UNIT ACTIVITIES <br /> <br />~ <br />~ <br />~ <br />~ <br /> <br />Title 1 <br /> <br />Title I of the Colorado River Basin Salinity Control Act, <br />Public Law 93-320, authorized the Secretary of the Interior <br />to proceed with a program of works of improvement for the <br />enhancement and protection of the quality of water available <br />in the Colorado River for use in the United States and the <br />Republic of Mexico. Title I enables the United States to <br />comply with its obligation under the agreement with Mexico <br />of August 30, 1973 (Minute No. 242 of the International <br />Boundary and Water Commission, United States and Mexico), <br />which was concluded pursuant to the Treaty of February 3, <br />1944 (TS 994). <br /> <br />Title 1 features of the Colorado River Basin Salinity <br />Control Project are measures below Imperial Dam. They include <br />the Coachella Canal Unit, the Protective and Regulatory <br />Pumping Unit, and the Desalting Complex unit. Together, <br />these units will salvage over a third of a million acre-feet <br />of water a year. <br /> <br />The Coachella Canal Unit, which provides for concrete lining <br />the first 49 miles of the canal, is essentially completed, <br />except for some fish and wildlife mitigation features. <br />Program costs for this feature were $47,900,000. Up to <br />132,000 acre-feet of water will be saved per year. Operation <br />and maintenance of this canal remain with the Coachella <br />Valley Irrigation District. <br /> <br />Twenty-one wells of the 35-well Protective and Regulatory <br />Pumping Unit have been completed and are operable. The <br />remaining 14 have been deferred until water supply needs <br />make construction necessary. High flows in the Colorado <br />River over the past few years have meant little or no opera- <br />tion of the completed wells. About $19,500,000 of a <br />programmed $31,700,00 have been spent to date. By agreement <br />with Mexico, a maximum of 160,000 acre-feet per year will be <br />withdrawn by this well field. <br /> <br />Work is continuing on the keystone of Title I, the Desalting <br />Complex Unit. Contracts for the desalting equipment have <br />been awarded, and all major structures except the desalting <br />building have been completed. The last major contract, the <br />$35,419,195 Pretreatment Completion Contract, is well <br />underway. Two key flag dates are as follows: <br /> <br />1. Completion and start-up of the main pretreatment sys- <br />tem - mid-1987. We estimate about 18 months to fully <br />shake down this equipment. <br /> <br />13 <br />