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<br />• MINREC, INC., RED CANYON MINE <br />1995 ANNUAL HYDROLOGIC REPORT <br />RYDROLOGIC YEAR 10/94 - 9/95 <br />The reclamation of the Red Canyon mine site was performed during <br />1968. A vegetation study performed during 1992 demonstrated that <br />the vegetation on the mine site was adequate to control erosion. <br />Therefore, the sediment pond and the alternate sediment control for <br />the small area exemption are no longer required. No run-off water <br />was discharged from the site during the year. <br />This year's report is formatted the same as the 1987 - 1994 <br />reports. Monitoring values are compared with the average of <br />previous values for the same month which generally include <br />monitoring results from 1981 through 1994. The averages shown in <br />this report are slightly different from prior years reports because <br />the 1994 monitoring results are included in the averages. <br />Current monitoring requirements are shown on pages 144 and 144a of <br />the Permit. The location of the monitoring sites is shown on Map <br />2.05.6(3)-1. <br />SURFACE WATER <br />• Table 5-95 shows the surface water monitoring results for this <br />water year compared to the averages of previous years monitoring <br />results for the same month. <br />Spot flow readings taken in May will vary because of the timing and <br />intensity of snow melt. The May flow in Ward Creek was less than <br />prior years averages. <br />The late season flow in the creeks is augmented by reservoir <br />discharge. The September flow in Ward Creek was slightly greater <br />than its historic average. <br />The Division's letter dated March 3, 1994 requested that Minrec <br />sample and analyze Ward Creek for Total Dissolved Solids (TDS), and <br />the main anions and cations to allow comparison of current <br />conditions to conditions predicted in the PHC in regards to <br />salinity and TDS. The predicted values are presented in the Kaman <br />Tempo Report on pages 68 and 69. The report states that prior to <br />mining, ward Creek had an average TDS concentration of 214 mg/1 and <br />an average SAR of 0.9. <br />Minrec sampled Ward Creek for TDS and SAR during the low flow <br />period in September 1994 and September 1995. The following table <br />presents the results of the two years of monitoring. <br />• <br />