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Seneca II Mine, Phase I bond release, ue. 3 <br />The slump area above the Pecoco pond that was noted by Mr. Boulay 2 -3 months ago was <br />inspected. It appears there was an older slump in this same area probably due to a seasonal seep <br />associated with the final highwall. This older slump appears to have been stabilizing, and a small <br />area adjacent and below it slumped during spring 2006. There is some exposed soil and vertical <br />relief in the new slump area. We discussed possible remediation options here with SCC at our <br />close out meeting on August 10. We observed pm 22 that drains to the State Land $oard stock <br />tank, and there are some rills & gullies on the south-east side of the channel that need hand repair <br />work. This concluded our inspection on August 8. <br />We continued at the slrrub test plot in the East Wadge Pit reclamation area. There is an <br />alternative sediment control feature above the shnib plot that has eroded 2-3 feet deep and is <br />unstable. This feature drains east into the head of pm 8 and essentially straight downhill at this <br />point. As a result, the head of pm 8 is also poorly defined, eroded, and unstable. It appears larger <br />rip rap and better channel definition is needed here as rip rap is being displaced outside the <br />channel and the channel bank is eroding. A representative slope taken in the pm 8 channel at this <br />area downslope to just above the first bend in pm 8 was at 29%. The east channel bank of pm 8 is <br />eroding with the fabric and rip rap being displaced just above where pm 8a comes into pm 8. <br />There is an erosion gully south of pm 8a approaching 18" that needs to be repaired. Upper pm 8b <br />is a vegetated channel that was designed to drain into lower pm 8b. Lower pm 8b is a roughened <br />spoil, meandering channel that drains into pm 8. This design is no longer functional and the <br />permittee has done substantial remediation grading here this spring to control erosion. At our <br />close out meeting, we recommended to SCC that surface water runoff control in this entire area <br />(the East Wadge Pit) described above beginning at the shrub plot be reevaluated to provide stable <br />slopes and post mining drain ways. In addition to reseeding the unstable areas that will require <br />reconstruction grading, we recommended SCC evaluate the need to reseed other slopes where <br />vegetation may not be establishing as anticipated in the East Wadge Pit. We also notified SCC <br />that surface water runoff control in the East Wadge Pit area is not functional or stable, and <br />therefore not eligible for Phase I bond release. <br />We continued from the East Wadge Pit, and pm 17 along road E-1 appears to be stable. PM 21 <br />that drains into stock tank 16 in the Wadge Pasture is stable and the tank is dry. We flushed a <br />group of 10-12 Columbian Sharp-Tailed grouse just west of stock tank 16, and then flushed <br />another 2-3 grouse walking back to the road. <br />Mr. Boulay and Mrs. Brown walked pm 10 (and I drove around to pick then up) and pm-11, 14, <br />and 12 appear to be stable. PM 13 was stable, with the upper stock pond wet and the lower stock <br />pond dry. A spoil spring comes into pm 13 in its lower reach above the sediment pond. The <br />spring was flowing substantially. This concluded our inspection on August 9. <br />We began the inspection on August 10 by evaluating and measuring the roads, and comparing <br />our measurements against cross sections submitted for the roads. We found the widths and slopes <br />that we measured to be substantially as shown on the road cross sections. All roads and road <br />drainage ditches were substantially stable and functional. Water bars where used were stable and <br />functional. <br />