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i' <br />MINREC, INC. ANNUAL HYDROLOGIC REPORT PACE 5 <br />The Colorado Department of Health has implemented regulations regarding saline <br />discharges into the Colorado River. A discharge of one ton of salt per day can be <br />considered a no-salt discharge by the Department of Health. At the maximum expected <br />' flow rate of 100 gpm from the No. 1 Mine, a TDS concentration of 1500 mg/I would yield <br />a salt concentration of 0.9 tons per day, slightly below the one ton per day of salt <br />discharge limitation. <br />' The entire mine site has been reclaimed and seeded. Good plant growth occurred during <br />1988 through 1997. During 1992 a study was performed at the mine site that <br />demonstrates that untreated drainage from the reclaimed area contributes fewer <br />suspended solids than untreated drainage from the natural surrounding area, (permit <br />pages 4-19i though 4-19iii). None of the sediment ponds discharged during the year. <br />1 <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br />1 <br />