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Discharge <br />E <br />T <br />p' Total Fe (mg/1, <br />Location Date (visual pH S <br />(µ ~ oF <br />( ~ using <br /> estimate Chemets kit <br />North Thompson Creek, <br />main channe130 ft. <br />downstream from Mine 4/18/07 nm 8.0 136 56 0 <br />No. 3 discharge <br />Mine No. 3 dischazge from <br />pipe on west end of Long 4/20/07 10 7.1 1405 54 > 10 <br />Pond <br />Discharge from treatment <br />pond 2 (to North <br />Thompson Creek, former 4/20/07 25 8.0 2054 63 <1 <br />CDPES outfall 001), with <br />Mines No. 1 and 3 <br />dischaz in to Lon Pond <br />Backfill and Grading <br />The two flumes that were in North Thompson Creek have been removed and no sign of the flumes <br />were found at the two locations. Boulders on the banks showed no evidence of disturbance. <br />The rain that fell on the morning of April 17 made the road too wet to visit the sites of the two flumes <br />on Middle Thompson Creek. These two flumes were removed more than four years earlier and the <br />sites have been adequately reclaimed, as noted in previous DRMS inspection reports (e.g., April 1 I, <br />2007). <br />Suaaort Facilities <br />No problems were found along the haul road corridor of the Loadout area. The Crystal River Ranch <br />uses the former haul road and other former loadout azeas for its cattle operation. <br />Slides and Damaee <br />Erosion - No signs of excessive erosion were found during the inspection. Gullying did not appeaz to <br />be a problem, even on the steepest and longest reclaimed slopes. Revegetation appears to have <br />stabilized slopes. No sediment deltas were found. <br />Slope Stability - No signs of instability were evident on reclaimed slopes. No bulges were evident at <br />the toe of the refuse pile. Tension cracks were not found on the upper parts of the refuse pile or above <br />the portal azeas. <br />Refuse Pile Sinkholes -Three holes were found in one azea on the ground surface of the refuse pile in <br />the upper part of the valley where the pile is located. Each hole is less than 6 feet across. Two of the <br />holes are only a few feet deep, but one hole extends out of view at least 10 feet down into the fill. The <br />holes appear to have formed by the collapse of material underneath the land surface. One possibility is <br />that the fill contained snow when it was backfilled. After the snow melted, the material on the surface <br />6 <br />