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<br />o <br />en <br />o year and result in an overall cost of $618,000 per mg/l/year. <br />0') <br /> <br />Reclamation should work closely with local canal and lateral <br /> <br />representatives to resolve any difflculties with lateral <br /> <br />operation and maintenance agreements. The recommended plan, <br /> <br />initial phase, includes concrete lining of all laterals and <br /> <br />the west end of the Highline Canal. Lining of other portions <br /> <br />of the Highline Canal will be deferr'ed until needed to meet <br />the numeric criteria. The combined stage I & II of Reclama- <br />tion's portion of the Grand Valley Unit are estimated to <br />remove 164,000 tons pel" year with a cost of $633,000 per mg/l <br /> <br />per year. Reclamation has completed a reevaluation of the <br /> <br />salt load contribution from the Grand Valley area. Although <br /> <br />recent studies reevaluating the salt load contributed from <br /> <br />the Grand Valley area studies show an estimated salt load of <br /> <br /> <br />200,000 tons/yr less than previously estimated (580,000 tons <br /> <br /> <br />vs 780,000), the change in loading does not affect the es- <br /> <br />timated potential salt reduction of 410,000 tons per year for <br /> <br />the combined full Reclamation and USDA program. <br /> <br />Paradox Valley Unit, Colorado - The brine inflow control <br />program as proposed has been tested and verified. The brine <br />disposal plan using deep well injection has been evaluated <br /> <br />and is considered the most cost-effective and environmentally <br /> <br />preferred disposal alternative. <br /> <br />Information obtained by the consultant for the deep <br /> <br />well drilling resulted in a decision not to attempt rehabili- <br /> <br />tation of the abandoned Conoco Well in Paradox Valley. This <br /> <br />change required a revision of the deep well drilling specifi- <br /> <br />-6.- <br />