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<br />32 <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />057~ <br /> <br />The Colorado Water Conservation Board has funded a demcnstration <br />projec~ within the watershed. The effects of practices applied will be <br />monitored to determine the impacts on deep percolation which effects <br />water quality. <br /> <br />There is also a 319 Best Management Practice (BMP) Demcnstration Area <br />in the project area. A monitoring plan has been develcped to <br />demonstrate how BMPs effect water quality. Water budget data will be <br />collected from irrigation producers on the fields monitored. NRCS will <br />continue this on-farm water budget monitoring as necessary to evaluate <br />the Limestone-Graveyard Creeks project effectiveness in relation to <br />project goals established by the sponsors. <br /> <br />Other alternatives considered but not developed into alternatives plans <br />due to not meeting the 4 criteria include: <br /> <br />1.) Canal lining did not reduce pollutant problems to an acceptable <br />level and was too costly. <br /> <br />2.) Change to center pivots was far too costly. <br /> <br />3.) Purchase of the irrigation rights from the land o~ers within the <br />watershed, and purchase the feed lots. This would have effectively <br />eliminate the agricultural contribution of pollutant to the surface and <br />to the groundwater. The negative effect on the local economy as well <br />as not being locally acceptable kept this from being developed. <br /> <br />Comparison of Alternative Plans <br />The Alternative plans are displayed for comparison on Table D. <br />