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<br />000062 <br /> <br />effective. Receipt of authorization to provide incidental wildlife <br />habitat replacement would eliminate most concerns related to expeditious <br />completion of the Stage II construction program. <br /> <br />, <br /> <br />Crystal Geyser Unit. - Cost-effectiveness of this unit is too poor to consider <br />it a viable control possibility at this time. Expected salinity reduction at <br />Imperial Dam is D.3 mg/L. <br /> <br />~ <br /> <br />Big Sandy River Unit. - The collection of saline ground water and delivery <br />via 35- to 40-mile pipelines to industrial users (fertilizer and trona) is <br />the most viable alternative and could reduce salinity concentrations at <br />Imperial Dam by 8 mg/L. Water rights is not an issue if the saline water is <br />beneficially used in Wyoming. A decision' to initiate preconstruction <br />(advance planning) activities in fiscal year 1985 is pending. <br /> <br />Outlook. - The announced 2-year delay in the construction of the Chevron <br />phosphate fertilizer plant and continued cutbacks in the trona industry <br />has made a more realistic preconstruction planning schedule provided no <br />other delays .are experienced. Another option is a possible linkup with <br />the Aquatrain system. <br /> <br />Meeker Dome Unit. - The well plugging program can be considered successful at <br />this time. <br /> <br />Outlook. - It may take another 3 to 5 years to confirm the total salt <br />reductions that are expected to average 6 mg/L at Imperial Dam since <br />replugging of the three wells in 1980 to 1981. In view of the complex <br />geohydrology involved, it may be unrealistic to expect 100 percent salt <br />removal but at least the bulk of the loading has been checked, according <br />to limited data. <br /> <br />. <br /> <br />Glenwood-Dotsero Springs Unit. - While the collection of saline ground water <br />and springs for disposal in evaporation ponds is the best plan, it is <br />not considered acceptable to the State because nonbeneficial use, such as <br />evaporation or out-of-state exportation of water, is in violation of the <br />State constitution. So until beneficial use is found, construction will be <br />delayed. Other key issues are also not resolved: pond liner requirements, <br />acceptable pond leakage rates, etc. When these issues are resolved, the plan <br />could reduce salinity concentrations at Imperial Dam by 31 mg/L. <br /> <br />Outlook. - Some physical/legal constraints are expected to reduce the <br />amount of saline water that can be collected, resulting in reduced salinity <br />impacts and higher costs. If construction authorization cannot be obtained <br />this year for the Dotsero segment of the pipeline construction through <br />Glenwood Canyon, the environmental prOblems of delayed construction may be <br />significant. Final implementation of this unit will depend on beneficial <br />use of the collected saline waters in Colorado. Additional delays are <br />expected. <br /> <br />Price-San Rafael Rivers Unit. - There appears to be very limited potential <br />for agricultural improvements or on-farm programs to significantly reduce <br />salt loading. Recent studies by the contractor cite potential collection <br />and use of saline water in the proposed Wellington Powerplant and by other <br /> <br />4 <br />