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TITLE 11 PROGRAM SUMMARIES 51 other land treatment practices to reduce deep percolation and the resulting drainage pumping. Since the Colorado River salinity program was implemented in 1975, the drainage pumping has been reduc~d by about half or approximately 100,000 acre-feet. This has been accomplished through the installation of more than 262.6 miles of concrete ditch linings, 44,724 acres of land leveling, and 10,635 water control structures. In addition, strong emphasis was placed on implementation of the Irrigation Water Management Program on all 48,195 planned acres concurrent with the construction activities until 1986. In 1986, the Irrigation Water Management Program funding was eliminated and the program, now under the Water Management and Conservation (WMC) Program, was turned over to the WMIDD to operate. The district has been using the WMC program on approximately 5,500 acres per year since 1986. In addition, strong emphasis was placed on implementation of an irrigation water management program on all 48,195 planned acres concurrent with the construction activities. Construction work was completed in 1986 and all of the long-term contracts have expired. Technical assistance continues to be provided by SCS stafffor the operation and maintenance of irrigation and other land treatment practices by farmers in the project. SCS has conducted various post-project studies to evaluate the effectiveness of the onfarm treatment and water management improvements. This information is contained in the "Wellton-Mohawk On-farm Irrigation Improvement Program Post-Evaluation Report," August 1988, SCS, Phoenix, Arizona. The Wellton-Mohawk project was successful because of various important political and social factors. There was national and international involvement with a high political awareness, and the local community recognized that the salinity problem had to be solved. Farmers were willing to make the needed changes in their farm operations, and the local leaders were highly educated, risk oriented innovators. From the program perspective, SCS attributes much of the overall success of the project to several key staffing and financial assistance actions. Farmers were provided technical and financial assistance by an onsite SCS stafffor the length of the project. There was an adequate diversity of technical staff to address all planning, applications, and evaluation needs. Farmers were also provided with multiple land treatment alternatives from which they selected the salinity reduction practices applied. Also, quality practices were applied in a timely manner because close communications were maintained with the farmers and land treatment contractors. Cost-share payments to farmers were prompt, and the contract limits were adequate to install the needed practices. The assistance and cooperation from the local entities was an important factor in successful implementation of the project. The WMIDD provided farm boundary and right-of-way engineering services, irrigation records, and computer time. The Well ton-Mohawk Valley Natural Resource Conservation District provided considerable preplanning and mediation assistance. TITLE II PROGRAM SUMMARIES Bureau of Reclamation Title II of the Colorado River Basin Salinity Control Act authorized the Secretary of the Interior to construct the Grand Valley Unit, the Las Vegas Wash Unit, the Lower Gunriison Basin Unit, portions ofthe McElmo Creek Unit now included in the Dolores Project, and the Paradox Valley Unit. Another unit, the Meeker Dome Unit, was completed in a veritlcation well plugging program. No additional actions are planned for this unit. Title II further authorized and directed the Secretary of the Interior to expedite completion of the planning reports on units described in the Secretary's Report, Colorado River Water Quality Improvement Program, February 1972, Section 203(b)(2), and directs the Secretary to undertake research on additional methods of accomplishing the objective of this title (Title II of Public Law 93-320).