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<br />Emery Irrigated Area <br /> <br />Approximately 13,000 tons per year of salt are contributed by the 1r- <br /> <br />rigated area. Concentration of salt in this water 1S about <br /> <br />3,000-4,000 mg/L of total dissolved solids (TDS). Initial study has <br /> <br />shown that reducing eanal system leakage will reduce a portion of <br /> <br />this salt from entering the surface water. Seepage could be reduced <br /> <br />by several means. The most cost-effective would be eliminating win- <br /> <br />ter use of the canal and provide piped water for winter livestock <br /> <br />use. Another less cost-effective approach would be to line the ex- <br /> <br />isting canal system to reduce seepage year-round. Some type of cost <br /> <br />sharing with the irrigation company would be appropriate with the <br /> <br />latter approach. <br /> <br />Consolidated Coal Point Discharge (Near Emery) <br /> <br />In the dewatering of the subsurface coal m1ne, approximately 1/3 to <br /> <br />1/2 cubic foot per second (cfs) of water is intercepted and pumped <br /> <br />into a sedimentation pond and eventually into the surface water. <br /> <br />This water dumps approximately 2,000 tons per year of salt into the <br /> <br />system at a concentration of 3,000-4,000 mg/L TDS. This water could <br /> <br />be collected and used for some type of industrial purpose within or <br /> <br />outside of the drainage basin. No other cost-effective control <br /> <br />method could be determined. <br /> <br />002483 <br /> <br />(7) <br />