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<br />• Red Canyon Mine - 1995 AHR Page : <br /> Total Dissoly Sol d <br />ed i s So t' <br />drum Adsor ion Ratio <br />P <br /> Mea d <br />sure <br /> <br />P dic <br />re ted <br /> <br /> <br />easured <br /> <br /> <br />redicted <br />U/S Ward 9/94 60 214 0.67 0.90 <br />U/S Ward 9/95 66 214 0.67 0.90 <br />D/S Ward 9/94 105 214 1.02 0.90 <br />D/S Ward 9/95 90 214 0.69 0.90 <br />This sampling confirms that the Red Canyon Mine has not had an <br />adverse impact on the quality of water in ward Creek. <br />The hydrologic monitoring program requires the sampling of springs <br />SP-1 and SP-3 for flow, pH and conductivity twice each year. This <br />monitoring is done to determine if the quality of the springs is <br />impacted by water which could seep into the alluvium from the <br />presumably flooded mine workings. In May and September the <br />conductivity of SP-1 was 770 and 790 uhmos/cm respectively. Both <br />• values are higher than the historical average of 734 uhmos/cm but <br />lower than the historic high of 990 uhmos/cm. In May the <br />conductivity of SP-3 was 620 uhmos/cm which is higher than its <br />historical average but less than the historical high of 666 <br />uhmos/cm. In September the conductivity of SP-3 was 550 uhmos/cm <br />which is less than its historical average of 591 uhmos/cm and much <br />less than the historic high of 666 uhmos/cm. The pH of the spring <br />water, both SP-1 and SP-3, is within an acceptable range. <br />The enclosed graph shows that the conductivity of spring SP-1 has <br />consistently been below its historic maximum during the period 1989 <br />through 1995. For Spring SP-3, the enclosed graph shows that its <br />conductivity has consistently been above its historic average and <br />below its historic maximum except during 1993 when the measured <br />conductivity of SP-3 was about 128 greater than it historic <br />maximum. <br />The hydrologic monitoring program provides for monitoring to <br />determine if run-off from the mine site has any impact on the water <br />quality in the Carbon Ditch. SP-D is the upstream monitoring point <br />and SP-DA is the downstream monitoring point on the Carbon Ditch. <br />SP-D is located on the Carbon Ditch at a point that would not be <br />impacted by surface run-off from the mine site. SP-DA is located <br />downstream on the Carbon Ditch at a point that could be impacted by <br />surface run-off from the mine site. Both points are monitored <br />• during May and September for field parameters and total suspended <br />solids, (TSS). In May the TSS for SP-D and SP-DA was 760 and 455 <br />respectively. In September both SP-D and SP-DA had TSS values of <br />