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<br />:' , <br />~ <br />.}) Table 2. Grand Valley Water Management and Salinity Control Accomplishments <br />. :j~ <br /> <br />-:--~ <br />.=-:\ <br /> <br />1981 <br /> <br />.--., <br /> <br />Pipeline Laterals (Linear Feet) <br />Concrete Laterals (Linear Feet) <br />Onfarm Pipeline (Linear Feet) <br />Ported Ditch (Linear Feet) <br />Grated Pipe (Linear Feet) <br /> <br />43,732 <br />18,.486 <br />65,,400 <br />38,453 <br />35,,333 <br /> <br />504 <br />2 <br />144 <br />1,554 <br />3,861 <br />91 <br /> <br />Land Leveling (Acres) <br />Drip/Sprinkler System (No.) <br />Structures (No.) <br />Cost Shares Earned ($000) <br />Acres Served (Acres) <br />Farmers Paid (No.) <br /> <br />Total <br /> <br />100,846 <br />54,634 <br />151,071 <br />89,502 <br />71,450 <br /> <br />1,439 <br />8 <br />.)86 <br />3,417 <br />Y,638 <br />530 <br /> <br />These accomplishments through 1981 have resulted in an est1mated salt load <br /> <br />reduction to the Colorado River of 13,000 tons. <br /> <br />SCS and ARS have been working towards expanding and improving the use and <br /> <br />development of automated systems. Several educational demonstration systems <br /> <br />have been installed. The adoption and use of different automated systems has <br /> <br />created some technical problems. However, the majority of the problems have <br /> <br />been more closely related to the automatic timers used with the automated <br /> <br />equipment and facilities for different systems. <br /> <br />completed by Colorado State University under contract with ARS and in <br /> <br />The firs t year monitoring report of onf arm irriga tion improvements was <br /> <br />cooperation with SCS. The report, entitled "Monitoring and Evaluation of <br /> <br />Onfarm Irrigation Improvements in the Grand Valley Salinity Control Project" <br /> <br />is available. from both SCS and ARS. The major findings concluded that the <br /> <br />manual timers controlling semi -automatic systems were not functioning <br /> <br />properly, but that there were substantial water savings and resultant <br /> <br />reductions in deep percolation of irrigation waters. The second-year report <br /> <br />19 <br />