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the data collected this year, and will forward it to the CDRMS when <br />complete. <br />Surface Water Summary. Water discharged from the PSCM is not used <br />directly for irrigation. No irrigation exists on Grassy Creek or Cow <br />Camp Creek below the PSCM. Indirectly, although, water discharged from <br />the mine is significantly diluted by water from either Fish Creek or the <br />Yampa River before it is diverted and used for irrigation. Due to the <br />relative amount of dilution by additional water from both sources, the <br />ambient water qualities of Fish Creek and the Yampa River are the <br />dominant factors in determining their suitability for irrigation. Water <br />discharged from the PSCM is, however, used for livestock watering. <br />TDS values at NPDES3 are decreasing. TDS values at NPDES4 appear to be <br />stabilizing with a slightly decreasing trend this year. At lower Grassy <br />Creek Site YSG5 and NPDES2, TDS trends are increasing. Of the nine spoil <br />springs monitored, six are exhibiting decreasing TDS trends, one <br />displays an increasing trend and one displays a stable TDS trend. Spoil <br />Spring 6A does not have enough data to determine a TDS trend. NPDES <br />discharges are normally suitable for livestock and irrigation, but <br />exceeded water quality standards (selenium and Iron) for aquatic life <br />this year. <br />TDS values at NPDES2 were below the PHC predicted value. TDS values at <br />lower Grassy Creek Site YSG5 were also below the PHC predicted value. <br />The winter snowpack (as estimated from data at the NCDC's Hayden <br />Station) for this year was 8.9% above the average. <br />21 <br />