<br />ProRram AccomPlishments and Effects
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<br />Onfarm and ,off-farm lateral improvements in Grand Valley have ,been accom~
<br />plished primarily through the annu~l practice cost-shareprovisio~ of the ACP
<br />program in ASCS. ,Onfarm pipeline and ditch lining for 1984~as 116,433.feet
<br />and 26,249 feet respectively. Total onfarm pipeline and ditch lining
<br />accomplishments ,thus far are approximately 112 miles, of pille lines and 36 miles"
<br />of ,ditch lining. Combined, ,these accomplishments rept;'esentabouj:. 22.4'Lofthe
<br />total Grand Valley projects goals.
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<br />Off-farm lateral improvements for 1984 consisted of 15,792 feet of pipeline
<br />improvements. Total off-farm lateral accomplishments for the project are
<br />,32.8,miles ,of pipelines and 10.8 miles, of ditch lining, representing ,22.9" of
<br />the overall project goals. ,
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<br />Onfarm seepage 'or deep percolation reductions are estimated"tll l:le 3,378 acre
<br />feet per year for an average salt load reduction of17,027,tonsper year.
<br />Off-farm lateral seepage reductions are 2047 acre feet per year for 10,295 tons
<br />of salt load reductions per year. Total seepage/deep percolation reductions
<br />are 5,425 acre feet per year fora 27,322 tons per year salt load reduction.
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<br />,'IrriRation System I\lll)rovements
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<br />Prior to implementation of the selected plan a total of 35,100 aeres had
<br />received treatment through improved irrigation systems. An estimated 10,200
<br />acres were improved with sprinkler systems While 24,900, acres had received
<br />improved surface systems. Portions of these improvements were installed with
<br />assista~ce through, the regular ACP cost, share program~
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<br />Crop yields' have also been reduced in areas with poor drainage and
<br />salt-toxicity problems. , Decreasing yields of alfalfa and small grains are
<br />also evident in areas that haVe 'been continually over irrigated. This has
<br />resulted 'in', a shift ,to more water and salt,..tolerantplants,..
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<br />ProRramAccomplishments and Effects
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<br />A total'of $7,623,017 in ACP-Salinityfunding has been obligated, from 1980 to
<br />1984 on 20,573 acres through Long Term Agreements. In addition to this,
<br />$1,339,722 ,was obligated for annual practices. These improvements included
<br />both sprinkler and surface systems. DUring the past three irrigation seasons,
<br />irrigation water management has been applied to a total of 10,929 acres of
<br />farmland. Salt reduction of 12,900 tons (6,550 acre feet of reduced
<br />percolation) ,has resulted from application of these structural and management
<br />practices.
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